Scippy

SCIP

Solving Constraint Integer Programs

cons.c
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1 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
2 /* */
3 /* This file is part of the program and library */
4 /* SCIP --- Solving Constraint Integer Programs */
5 /* */
6 /* Copyright (C) 2002-2020 Konrad-Zuse-Zentrum */
7 /* fuer Informationstechnik Berlin */
8 /* */
9 /* SCIP is distributed under the terms of the ZIB Academic License. */
10 /* */
11 /* You should have received a copy of the ZIB Academic License */
12 /* along with SCIP; see the file COPYING. If not visit scipopt.org. */
13 /* */
14 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
15 
16 /**@file cons.c
17  * @ingroup OTHER_CFILES
18  * @brief methods for constraints and constraint handlers
19  * @author Tobias Achterberg
20  * @author Timo Berthold
21  */
22 
23 /*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
24 
25 #include <assert.h>
26 #include <string.h>
27 #include <ctype.h>
28 
29 #include "scip/def.h"
30 #include "scip/set.h"
31 #include "scip/stat.h"
32 #include "scip/clock.h"
33 #include "scip/var.h"
34 #include "scip/prob.h"
35 #include "scip/tree.h"
36 #include "scip/scip.h"
37 #include "scip/sepastore.h"
38 #include "scip/cons.h"
39 #include "scip/branch.h"
40 #include "scip/reopt.h"
41 #include "scip/pub_misc.h"
42 
43 #ifndef NDEBUG
44 #include "scip/struct_cons.h"
45 #endif
46 
47 
48 #define AGERESETAVG_INIT 1000.0 /**< initial value of the exponentially decaying weighted sum for ages */
49 #define AGERESETAVG_MIN 100.0 /**< minimal value to use for weighted sum of ages */
50 #define AGERESETAVG_DECAY 0.0005 /**< weight of a new addend in the exponentially decyaing sum */
51 #define AGERESETAVG_AGELIMIT 2.0 /**< in dynamic setting, a constraint is deleted if its age exceeds the
52  * average reset age by this factor */
53 #define AGERESETAVG_OBSOLETEAGE 1.8 /**< in dynamic setting, a constraint is marked obsolete if its age exceeds the
54  * average reset age by this factor */
55 
56 
57 /* #define CHECKCONSARRAYS */
58 
59 
60 /*
61  * dynamic memory arrays
62  */
63 
64 
65 /** resizes conss array to be able to store at least num constraints */
66 static
68  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
69  SCIP_SET* set, /**< global SCIP settings */
70  int num /**< minimal number of slots in array */
71  )
72 {
73  assert(conshdlr != NULL);
74  assert(set != NULL);
75 
76  if( num > conshdlr->consssize )
77  {
78  int newsize;
79 
80  newsize = SCIPsetCalcMemGrowSize(set, num);
81  SCIP_ALLOC( BMSreallocMemoryArray(&conshdlr->conss, newsize) );
82  conshdlr->consssize = newsize;
83  }
84  assert(num <= conshdlr->consssize);
85 
86  return SCIP_OKAY;
87 }
88 
89 /** resizes initconss array to be able to store at least num constraints */
90 static
92  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
93  SCIP_SET* set, /**< global SCIP settings */
94  int num /**< minimal number of slots in array */
95  )
96 {
97  assert(conshdlr != NULL);
98  assert(set != NULL);
99 
100  if( num > conshdlr->initconsssize )
101  {
102  int newsize;
103 
104  newsize = SCIPsetCalcMemGrowSize(set, num);
105  SCIP_ALLOC( BMSreallocMemoryArray(&conshdlr->initconss, newsize) );
106  conshdlr->initconsssize = newsize;
107  }
108  assert(num <= conshdlr->initconsssize);
109 
110  return SCIP_OKAY;
111 }
112 
113 /** resizes sepaconss array to be able to store at least num constraints */
114 static
116  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
117  SCIP_SET* set, /**< global SCIP settings */
118  int num /**< minimal number of slots in array */
119  )
120 {
121  assert(conshdlr != NULL);
122  assert(set != NULL);
123 
124  if( num > conshdlr->sepaconsssize )
125  {
126  int newsize;
127 
128  newsize = SCIPsetCalcMemGrowSize(set, num);
129  SCIP_ALLOC( BMSreallocMemoryArray(&conshdlr->sepaconss, newsize) );
130  conshdlr->sepaconsssize = newsize;
131  }
132  assert(num <= conshdlr->sepaconsssize);
133 
134  return SCIP_OKAY;
135 }
136 
137 /** resizes enfoconss array to be able to store at least num constraints */
138 static
140  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
141  SCIP_SET* set, /**< global SCIP settings */
142  int num /**< minimal number of slots in array */
143  )
144 {
145  assert(conshdlr != NULL);
146  assert(set != NULL);
147 
148  if( num > conshdlr->enfoconsssize )
149  {
150  int newsize;
151 
152  newsize = SCIPsetCalcMemGrowSize(set, num);
153  SCIP_ALLOC( BMSreallocMemoryArray(&conshdlr->enfoconss, newsize) );
154  conshdlr->enfoconsssize = newsize;
155  }
156  assert(num <= conshdlr->enfoconsssize);
157 
158  return SCIP_OKAY;
159 }
160 
161 /** resizes checkconss array to be able to store at least num constraints */
162 static
164  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
165  SCIP_SET* set, /**< global SCIP settings */
166  int num /**< minimal number of slots in array */
167  )
168 {
169  assert(conshdlr != NULL);
170  assert(set != NULL);
171 
172  if( num > conshdlr->checkconsssize )
173  {
174  int newsize;
175 
176  newsize = SCIPsetCalcMemGrowSize(set, num);
177  SCIP_ALLOC( BMSreallocMemoryArray(&conshdlr->checkconss, newsize) );
178  conshdlr->checkconsssize = newsize;
179  }
180  assert(num <= conshdlr->checkconsssize);
181 
182  return SCIP_OKAY;
183 }
184 
185 /** resizes propconss array to be able to store at least num constraints */
186 static
188  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
189  SCIP_SET* set, /**< global SCIP settings */
190  int num /**< minimal number of slots in array */
191  )
192 {
193  assert(conshdlr != NULL);
194  assert(set != NULL);
195 
196  if( num > conshdlr->propconsssize )
197  {
198  int newsize;
199 
200  newsize = SCIPsetCalcMemGrowSize(set, num);
201  SCIP_ALLOC( BMSreallocMemoryArray(&conshdlr->propconss, newsize) );
202  conshdlr->propconsssize = newsize;
203  }
204  assert(num <= conshdlr->propconsssize);
205 
206  return SCIP_OKAY;
207 }
208 
209 /** resizes updateconss array to be able to store at least num constraints */
210 static
212  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
213  SCIP_SET* set, /**< global SCIP settings */
214  int num /**< minimal number of slots in array */
215  )
216 {
217  assert(conshdlr != NULL);
218  assert(set != NULL);
219 
220  if( num > conshdlr->updateconsssize )
221  {
222  int newsize;
223 
224  newsize = SCIPsetCalcMemGrowSize(set, num);
225  SCIP_ALLOC( BMSreallocMemoryArray(&conshdlr->updateconss, newsize) );
226  conshdlr->updateconsssize = newsize;
227  }
228  assert(num <= conshdlr->updateconsssize);
229 
230  return SCIP_OKAY;
231 }
232 
233 
234 
235 
236 /*
237  * Constraint handler methods
238  */
239 
240 #define checkConssArrays(conshdlr) /**/
241 #ifndef NDEBUG
242 #ifdef CHECKCONSARRAYS
243 #undef checkConssArrays
244 /** sanity check for the constraint arrays of the constraint handler (only in debug mode) */
245 static
246 void checkConssArrays(
247  SCIP_CONSHDLR* conshdlr /**< constraint handler */
248  )
249 {
250  int c;
251 
252  assert(conshdlr != NULL);
253  assert(0 <= conshdlr->nactiveconss && conshdlr->nactiveconss <= conshdlr->nconss);
254 
255  for( c = 0; c < conshdlr->nconss; ++c )
256  {
257  assert(conshdlr->conss[c] != NULL);
258  assert(!conshdlr->conss[c]->original);
259  assert(conshdlr->conss[c]->active == (c < conshdlr->nactiveconss));
260  assert(conshdlr->conss[c]->consspos == c);
261  }
262 
263  for( c = 0; c < conshdlr->ninitconss; ++c )
264  {
265  assert(conshdlr->initconss[c] != NULL);
266  assert(!conshdlr->initconss[c]->original);
267  assert(c < conshdlr->ninitconsskept || conshdlr->initconss[c]->active);
268  assert(conshdlr->initconss[c]->initial);
269  }
270 
271  for( c = 0; c < conshdlr->nsepaconss; ++c )
272  {
273  assert(conshdlr->sepaconss[c] != NULL);
274  assert(!conshdlr->sepaconss[c]->original);
275  assert(conshdlr->sepaconss[c]->active);
276  assert(conshdlr->sepaconss[c]->separate);
277  assert(conshdlr->sepaconss[c]->sepaenabled);
278  assert(conshdlr->sepaconss[c]->obsolete == (c >= conshdlr->nusefulsepaconss));
279  }
280 
281  for( c = 0; c < conshdlr->nenfoconss; ++c )
282  {
283  assert(conshdlr->enfoconss[c] != NULL);
284  assert(!conshdlr->enfoconss[c]->original);
285  assert(conshdlr->enfoconss[c]->active);
286  assert(conshdlr->enfoconss[c]->enforce);
287  assert(conshdlr->enfoconss[c]->obsolete == (c >= conshdlr->nusefulenfoconss));
288  }
289 
290  for( c = 0; c < conshdlr->ncheckconss; ++c )
291  {
292  assert(conshdlr->checkconss[c] != NULL);
293  assert(!conshdlr->checkconss[c]->original);
294  assert(conshdlr->checkconss[c]->active);
295  assert(conshdlr->checkconss[c]->check);
296  assert(conshdlr->checkconss[c]->obsolete == (c >= conshdlr->nusefulcheckconss));
297  }
298 
299  for( c = 0; c < conshdlr->npropconss; ++c )
300  {
301  assert(conshdlr->propconss[c] != NULL);
302  assert(!conshdlr->propconss[c]->original);
303  assert(conshdlr->propconss[c]->active);
304  assert(conshdlr->propconss[c]->propagate);
305  assert(conshdlr->propconss[c]->propenabled);
306  assert(conshdlr->propconss[c]->markpropagate == (c < conshdlr->nmarkedpropconss));
307  assert(conshdlr->propconss[c]->markpropagate || (conshdlr->propconss[c]->obsolete == (c >= conshdlr->nusefulpropconss)));
308  }
309  assert(conshdlr->nmarkedpropconss <= conshdlr->npropconss);
310 }
311 #endif
312 #endif
313 
314 /** returns whether the constraint updates of the constraint handler are currently delayed */
315 static
317  SCIP_CONSHDLR* conshdlr /**< constraint handler */
318  )
319 {
320  return (conshdlr->delayupdatecount > 0);
321 }
322 
323 /** returns the exponentially decaying weighted age average for age resets */
324 static
326  SCIP_CONSHDLR* conshdlr /**< constraint handler */
327  )
328 {
329  assert(conshdlr != NULL);
330 
331  return MAX(conshdlr->ageresetavg, AGERESETAVG_MIN);
332 }
333 
334 /** updates the exponentially decaying weighted age average for age resets after a constraint age was reset */
335 static
337  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
338  SCIP_Real age /**< age of the constraint that is reset to zero */
339  )
340 {
341  assert(conshdlr != NULL);
342 
343  conshdlr->ageresetavg *= (1.0-AGERESETAVG_DECAY);
344  conshdlr->ageresetavg += AGERESETAVG_DECAY * age;
345 }
346 
347 /** returns whether the constraint's age exceeds the age limit */
348 static
350  SCIP_CONS* cons, /**< constraint to check */
351  SCIP_SET* set /**< global SCIP settings */
352  )
353 {
354  assert(cons != NULL);
355  assert(set != NULL);
356 
357  return (cons->dynamic
358  && ((set->cons_agelimit > 0 && cons->age > set->cons_agelimit)
359  || (set->cons_agelimit == 0 && cons->age > AGERESETAVG_AGELIMIT * conshdlrGetAgeresetavg(cons->conshdlr))));
360 }
361 
362 /** returns whether the constraint's age exceeds the obsolete age limit */
363 static
365  SCIP_CONS* cons, /**< constraint to check */
366  SCIP_SET* set /**< global SCIP settings */
367  )
368 {
369  assert(cons != NULL);
370  assert(set != NULL);
371 
372  return (cons->dynamic
373  && ((set->cons_obsoleteage > 0 && cons->age > set->cons_obsoleteage)
374  || (set->cons_obsoleteage == 0 && cons->age > AGERESETAVG_OBSOLETEAGE * conshdlrGetAgeresetavg(cons->conshdlr))));
375 }
376 
377 /** marks constraint to be obsolete; it will be moved to the last part of the constraint arrays, such that
378  * it is checked, enforced, separated, and propagated after the useful constraints
379  */
380 static
382  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
383  SCIP_CONS* cons /**< constraint to be marked obsolete */
384  )
385 {
386  SCIP_CONS* tmpcons;
387 
388  assert(conshdlr != NULL);
389  assert(conshdlr->nusefulsepaconss <= conshdlr->nsepaconss);
390  assert(conshdlr->nusefulenfoconss <= conshdlr->nenfoconss);
391  assert(conshdlr->nusefulcheckconss <= conshdlr->ncheckconss);
392  assert(conshdlr->nusefulpropconss <= conshdlr->npropconss);
393  assert(cons != NULL);
394  assert(!cons->original);
395  assert(!cons->obsolete);
396  assert(!conshdlrAreUpdatesDelayed(conshdlr));
397 
398  cons->obsolete = TRUE;
399 
400  if( cons->active )
401  {
402  if( cons->check )
403  {
404  assert(0 <= cons->checkconsspos && cons->checkconsspos < conshdlr->nusefulcheckconss);
405 
406  /* switch the last useful (non-obsolete) check constraint with this constraint */
407  tmpcons = conshdlr->checkconss[conshdlr->nusefulcheckconss-1];
408  assert(tmpcons->checkconsspos == conshdlr->nusefulcheckconss-1);
409 
410  conshdlr->checkconss[conshdlr->nusefulcheckconss-1] = cons;
411  conshdlr->checkconss[cons->checkconsspos] = tmpcons;
412  tmpcons->checkconsspos = cons->checkconsspos;
413  cons->checkconsspos = conshdlr->nusefulcheckconss-1;
414 
415  conshdlr->nusefulcheckconss--;
416  }
417  }
418  if( cons->enabled )
419  {
420  if( cons->separate && cons->sepaenabled )
421  {
422  assert(0 <= cons->sepaconsspos && cons->sepaconsspos < conshdlr->nusefulsepaconss);
423 
424  if( cons->sepaconsspos < conshdlr->lastnusefulsepaconss )
425  conshdlr->lastnusefulsepaconss--;
426 
427  /* switch the last useful (non-obsolete) sepa constraint with this constraint */
428  tmpcons = conshdlr->sepaconss[conshdlr->nusefulsepaconss-1];
429  assert(tmpcons->sepaconsspos == conshdlr->nusefulsepaconss-1);
430 
431  conshdlr->sepaconss[conshdlr->nusefulsepaconss-1] = cons;
432  conshdlr->sepaconss[cons->sepaconsspos] = tmpcons;
433  tmpcons->sepaconsspos = cons->sepaconsspos;
434  cons->sepaconsspos = conshdlr->nusefulsepaconss-1;
435 
436  conshdlr->nusefulsepaconss--;
437  }
438  if( cons->enforce )
439  {
440  assert(0 <= cons->enfoconsspos && cons->enfoconsspos < conshdlr->nusefulenfoconss);
441 
442  if( cons->enfoconsspos < conshdlr->lastnusefulenfoconss )
443  conshdlr->lastnusefulenfoconss--;
444  else
445  {
446  /* the constraint that becomes obsolete is not yet enforced on the current solution:
447  * we have to make sure that it will be enforced the next time; this is not done, if the current
448  * solution was already enforced and only enforcement on the additional constraints is performed
449  * (because in this case, only the new useful constraints are enforced);
450  * thus, we have to reset the enforcement counters in order to enforce all constraints again, especially
451  * the now obsolete one;
452  * this case should occur almost never, because a constraint that was not enforced in the last enforcement
453  * is a newly added one, and it is very unlikely that this constraint will become obsolete before the next
454  * enforcement call;
455  * this reset is not performed for separation and propagation, because they are not vital for correctness
456  */
457  conshdlr->lastenfolplpcount = -1;
458  conshdlr->lastenfolpdomchgcount = -1;
459  conshdlr->lastenfopsdomchgcount = -1;
460  conshdlr->lastenforelaxdomchgcount = -1;
461  conshdlr->lastenforelaxrelaxcount = -1;
462  conshdlr->lastenfolpnode = -1;
463  conshdlr->lastenfopsnode = -1;
464  }
465 
466  /* switch the last useful (non-obsolete) enfo constraint with this constraint */
467  tmpcons = conshdlr->enfoconss[conshdlr->nusefulenfoconss-1];
468  assert(tmpcons->enfoconsspos == conshdlr->nusefulenfoconss-1);
469 
470  conshdlr->enfoconss[conshdlr->nusefulenfoconss-1] = cons;
471  conshdlr->enfoconss[cons->enfoconsspos] = tmpcons;
472  tmpcons->enfoconsspos = cons->enfoconsspos;
473  cons->enfoconsspos = conshdlr->nusefulenfoconss-1;
474 
475  conshdlr->nusefulenfoconss--;
476  }
477  /* in case the constraint is marked to be propagated, we do not move it in the propconss array since the first
478  * part of the array contains all marked constraints independently of their age
479  */
480  assert((!cons->markpropagate) == (cons->propconsspos < conshdlr->nmarkedpropconss));
481  if( cons->propagate && cons->propenabled && !cons->markpropagate )
482  {
483  assert(0 <= cons->propconsspos && cons->propconsspos < conshdlr->nusefulpropconss);
484 
485  if( cons->propconsspos < conshdlr->lastnusefulpropconss )
486  conshdlr->lastnusefulpropconss--;
487 
488  /* switch the last useful (non-obsolete) prop constraint with this constraint */
489  tmpcons = conshdlr->propconss[conshdlr->nusefulpropconss-1];
490  assert(tmpcons->propconsspos == conshdlr->nusefulpropconss-1);
491 
492  conshdlr->propconss[conshdlr->nusefulpropconss-1] = cons;
493  conshdlr->propconss[cons->propconsspos] = tmpcons;
494  tmpcons->propconsspos = cons->propconsspos;
495  cons->propconsspos = conshdlr->nusefulpropconss-1;
496 
497  conshdlr->nusefulpropconss--;
498  }
499  }
500 
501  checkConssArrays(conshdlr);
502 
503  return SCIP_OKAY;
504 }
505 
506 /** marks obsolete constraint to be not obsolete anymore;
507  * it will be moved to the first part of the constraint arrays, such that it is checked, enforced, separated,
508  * and propagated before the obsolete constraints
509  */
510 static
512  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
513  SCIP_CONS* cons /**< constraint to be marked obsolete */
514  )
515 {
516  SCIP_CONS* tmpcons;
517 
518  assert(conshdlr != NULL);
519  assert(conshdlr->nusefulsepaconss <= conshdlr->nsepaconss);
520  assert(conshdlr->nusefulenfoconss <= conshdlr->nenfoconss);
521  assert(conshdlr->nusefulcheckconss <= conshdlr->ncheckconss);
522  assert(conshdlr->nusefulpropconss <= conshdlr->npropconss);
523  assert(cons != NULL);
524  assert(!cons->original);
525  assert(cons->obsolete);
526  assert(!conshdlrAreUpdatesDelayed(conshdlr));
527 
528  cons->obsolete = FALSE;
529 
530  if( cons->active )
531  {
532  if( cons->check )
533  {
534  assert(conshdlr->nusefulcheckconss <= cons->checkconsspos && cons->checkconsspos < conshdlr->ncheckconss);
535 
536  /* switch the first obsolete check constraint with this constraint */
537  tmpcons = conshdlr->checkconss[conshdlr->nusefulcheckconss];
538  assert(tmpcons->checkconsspos == conshdlr->nusefulcheckconss);
539 
540  conshdlr->checkconss[conshdlr->nusefulcheckconss] = cons;
541  conshdlr->checkconss[cons->checkconsspos] = tmpcons;
542  tmpcons->checkconsspos = cons->checkconsspos;
543  cons->checkconsspos = conshdlr->nusefulcheckconss;
544 
545  conshdlr->nusefulcheckconss++;
546  }
547  }
548  if( cons->enabled )
549  {
550  if( cons->separate && cons->sepaenabled )
551  {
552  assert(conshdlr->nusefulsepaconss <= cons->sepaconsspos && cons->sepaconsspos < conshdlr->nsepaconss);
553 
554  /* switch the first obsolete sepa constraint with this constraint */
555  tmpcons = conshdlr->sepaconss[conshdlr->nusefulsepaconss];
556  assert(tmpcons->sepaconsspos == conshdlr->nusefulsepaconss);
557 
558  conshdlr->sepaconss[conshdlr->nusefulsepaconss] = cons;
559  conshdlr->sepaconss[cons->sepaconsspos] = tmpcons;
560  tmpcons->sepaconsspos = cons->sepaconsspos;
561  cons->sepaconsspos = conshdlr->nusefulsepaconss;
562 
563  conshdlr->nusefulsepaconss++;
564  }
565  if( cons->enforce )
566  {
567  assert(conshdlr->nusefulenfoconss <= cons->enfoconsspos && cons->enfoconsspos < conshdlr->nenfoconss);
568 
569  /* switch the first obsolete enfo constraint with this constraint */
570  tmpcons = conshdlr->enfoconss[conshdlr->nusefulenfoconss];
571  assert(tmpcons->enfoconsspos == conshdlr->nusefulenfoconss);
572 
573  conshdlr->enfoconss[conshdlr->nusefulenfoconss] = cons;
574  conshdlr->enfoconss[cons->enfoconsspos] = tmpcons;
575  tmpcons->enfoconsspos = cons->enfoconsspos;
576  cons->enfoconsspos = conshdlr->nusefulenfoconss;
577 
578  conshdlr->nusefulenfoconss++;
579  }
580  /* in case the constraint is marked to be propagated, we do not move it in the propconss array since the first
581  * part of the array contains all marked constraints independently of their age
582  */
583  assert((!cons->markpropagate) == (cons->propconsspos < conshdlr->nmarkedpropconss));
584  if( cons->propagate && cons->propenabled && !cons->markpropagate)
585  {
586  assert(conshdlr->nusefulpropconss <= cons->propconsspos && cons->propconsspos < conshdlr->npropconss);
587 
588  /* switch the first obsolete prop constraint with this constraint */
589  tmpcons = conshdlr->propconss[conshdlr->nusefulpropconss];
590  assert(tmpcons->propconsspos == conshdlr->nusefulpropconss);
591 
592  conshdlr->propconss[conshdlr->nusefulpropconss] = cons;
593  conshdlr->propconss[cons->propconsspos] = tmpcons;
594  tmpcons->propconsspos = cons->propconsspos;
595  cons->propconsspos = conshdlr->nusefulpropconss;
596 
597  conshdlr->nusefulpropconss++;
598  }
599  }
600 
601  checkConssArrays(conshdlr);
602 
603  return SCIP_OKAY;
604 }
605 
606 /** marks constraint to be propagated in the next propagation round;
607  *
608  * @note the propagation array is divided into three parts in contrast to the other constraint arrays;
609  * the first part contains constraints which were marked to be propagated (independently of its age)
610  * the second part contains the useful (non-obsolete) constraints which are not marked to be propagated
611  * finally, the third part contains obsolete constraints which are not marked to be propagated
612  *
613  * @note if a constraint gets marked for propagation we put it into the first part regardless of its age
614  */
615 static
617  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
618  SCIP_CONS* cons /**< constraint to be marked obsolete */
619  )
620 {
621  SCIP_CONS* tmpcons;
622 
623  assert(conshdlr != NULL);
624  assert(conshdlr->nmarkedpropconss <= conshdlr->nusefulpropconss);
625  assert(conshdlr->nusefulpropconss <= conshdlr->npropconss);
626  assert(cons != NULL);
627  assert(!cons->original);
628 
629  /* it may happen that the constraint is deleted while updates are delayed: in this case we just return */
630  if( !cons->enabled )
631  return;
632 
633  if( cons->markpropagate )
634  return;
635 
636  cons->markpropagate = TRUE;
637 
638  /* propagation of the constraint is globally or locally disabled, so we do not have to move the constraint in the
639  * propconss array
640  */
641  if( !cons->propagate || !cons->propenabled )
642  {
643  assert(cons->propconsspos == -1);
644  return;
645  }
646  assert(cons->propconsspos >= conshdlr->nmarkedpropconss);
647 
648  /* if the constraint is obsolete, we need to move it first to the non-obsolete part of the array */
649  if( cons->obsolete )
650  {
651  assert(conshdlr->nusefulpropconss <= cons->propconsspos && cons->propconsspos < conshdlr->npropconss);
652 
653  /* switch the first obsolete prop constraint with this constraint */
654  tmpcons = conshdlr->propconss[conshdlr->nusefulpropconss];
655  assert(tmpcons->propconsspos == conshdlr->nusefulpropconss);
656 
657  conshdlr->propconss[conshdlr->nusefulpropconss] = cons;
658  conshdlr->propconss[cons->propconsspos] = tmpcons;
659  tmpcons->propconsspos = cons->propconsspos;
660  cons->propconsspos = conshdlr->nusefulpropconss;
661 
662  conshdlr->nusefulpropconss++;
663  }
664  assert(conshdlr->nmarkedpropconss <= cons->propconsspos && cons->propconsspos < conshdlr->nusefulpropconss);
665 
666  /* switch the first useful prop constraint with this constraint */
667  tmpcons = conshdlr->propconss[conshdlr->nmarkedpropconss];
668  assert(tmpcons->propconsspos == conshdlr->nmarkedpropconss);
669 
670  conshdlr->propconss[conshdlr->nmarkedpropconss] = cons;
671  conshdlr->propconss[cons->propconsspos] = tmpcons;
672  tmpcons->propconsspos = cons->propconsspos;
673  cons->propconsspos = conshdlr->nmarkedpropconss;
674 
675  conshdlr->nmarkedpropconss++;
676  assert(conshdlr->nmarkedpropconss <= conshdlr->npropconss);
677 
678  checkConssArrays(conshdlr);
679 }
680 
681 /** unmarks constraint to be propagated in the next propagation round;
682  *
683  * @note the propagation array is divided into three parts in contrast to the other constraint arrays;
684  * the first part contains constraints which were marked to be propagated (independently of its age)
685  * the second part contains the useful (non-obsolete) constraints which are not marked to be propagated
686  * finally, the third part contains obsolete constraints which are not marked to be propagated
687  *
688  * @note if a constraint gets unmarked for propagation, it is put into the right part depending on its age
689  */
690 static
692  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
693  SCIP_CONS* cons /**< constraint to be marked obsolete */
694  )
695 {
696  SCIP_CONS* tmpcons;
697 
698  assert(conshdlr != NULL);
699  assert(conshdlr->nmarkedpropconss <= conshdlr->nusefulpropconss);
700  assert(conshdlr->nusefulpropconss <= conshdlr->npropconss);
701  assert(cons != NULL);
702  assert(!cons->original);
703 
704  /* it may happen that the constraint is deleted while updates are delayed: in this case we just return */
705  if( !cons->enabled )
706  return;
707 
708  if( !cons->markpropagate )
709  return;
710 
711  cons->markpropagate = FALSE;
712 
713  /* propagation of the constraint is globally or locally disabled, so we do not have to move the constraint in the
714  * propconss array
715  */
716  if( !cons->propagate || !cons->propenabled )
717  {
718  assert(cons->propconsspos == -1);
719  return;
720  }
721  assert(cons->propconsspos >= 0);
722  assert(cons->propconsspos < conshdlr->nmarkedpropconss);
723 
724  /* first, move the constraint out of the first part to the second part of the constraint array */
725  if( cons->propconsspos < conshdlr->nmarkedpropconss - 1 )
726  {
727  conshdlr->nmarkedpropconss--;
728 
729  /* switch the last marked prop constraint with this constraint */
730  tmpcons = conshdlr->propconss[conshdlr->nmarkedpropconss];
731  assert(tmpcons->propconsspos == conshdlr->nmarkedpropconss);
732 
733  conshdlr->propconss[conshdlr->nmarkedpropconss] = cons;
734  conshdlr->propconss[cons->propconsspos] = tmpcons;
735  tmpcons->propconsspos = cons->propconsspos;
736  cons->propconsspos = conshdlr->nmarkedpropconss;
737  }
738  else if( cons->propconsspos == conshdlr->nmarkedpropconss - 1 )
739  conshdlr->nmarkedpropconss--;
740  assert(cons->propconsspos == conshdlr->nmarkedpropconss);
741 
742  /* if the constraint is obsolete, move it to the last part of the constraint array */
743  if( cons->obsolete )
744  {
745  conshdlr->nusefulpropconss--;
746 
747  /* switch the last useful prop constraint with this constraint */
748  tmpcons = conshdlr->propconss[conshdlr->nusefulpropconss];
749  assert(tmpcons->propconsspos == conshdlr->nusefulpropconss);
750 
751  conshdlr->propconss[conshdlr->nusefulpropconss] = cons;
752  conshdlr->propconss[cons->propconsspos] = tmpcons;
753  tmpcons->propconsspos = cons->propconsspos;
754  cons->propconsspos = conshdlr->nusefulpropconss;
755  }
756 
757  checkConssArrays(conshdlr);
758 }
759 
760 
761 /** adds constraint to the conss array of constraint handler */
762 static
764  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
765  SCIP_SET* set, /**< global SCIP settings */
766  SCIP_CONS* cons /**< constraint to add */
767  )
768 {
769  assert(conshdlr != NULL);
770  assert(cons != NULL);
771  assert(cons->conshdlr == conshdlr);
772  assert(!cons->original);
773  assert(!cons->active);
774  assert(cons->consspos == -1);
775  assert(set != NULL);
776  assert(cons->scip == set->scip);
777 
778  /* insert the constraint as inactive constraint into the transformed constraints array */
779  SCIP_CALL( conshdlrEnsureConssMem(conshdlr, set, conshdlr->nconss+1) );
780  conshdlr->conss[conshdlr->nconss] = cons;
781  cons->consspos = conshdlr->nconss;
782  conshdlr->nconss++;
783 
784  return SCIP_OKAY;
785 }
786 
787 /** deletes constraint from the conss array of constraint handler */
788 static
789 void conshdlrDelCons(
790  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
791  SCIP_CONS* cons /**< constraint to remove */
792  )
793 {
794  assert(conshdlr != NULL);
795  assert(cons != NULL);
796  assert(cons->conshdlr == conshdlr);
797  assert(!cons->original);
798  assert(!cons->active);
799  assert(conshdlr->nactiveconss <= cons->consspos && cons->consspos < conshdlr->nconss);
800 
801  conshdlr->conss[cons->consspos] = conshdlr->conss[conshdlr->nconss-1];
802  conshdlr->conss[cons->consspos]->consspos = cons->consspos;
803  conshdlr->nconss--;
804  cons->consspos = -1;
805 }
806 
807 /** adds constraint to the initconss array of constraint handler */
808 static
810  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
811  SCIP_SET* set, /**< global SCIP settings */
812  SCIP_STAT* stat, /**< dynamic problem statistics */
813  SCIP_CONS* cons /**< constraint to add */
814  )
815 {
816  int insertpos;
817 
818  assert(conshdlr != NULL);
819  assert(cons != NULL);
820  assert(cons->conshdlr == conshdlr);
821  assert(!cons->original);
822  assert(cons->active);
823  assert(cons->initial);
824  assert(cons->initconsspos == -1 || cons->initconsspos < conshdlr->ninitconsskept);
825 
826  SCIP_CALL( conshdlrEnsureInitconssMem(conshdlr, set, conshdlr->ninitconss+1) );
827 
828  insertpos = conshdlr->ninitconss;
829 
830  conshdlr->initconss[insertpos] = cons;
831  conshdlr->ninitconss++;
832  stat->ninitconssadded++;
833 
834  /* if the constraint is kept, we keep the stored position at the beginning of the array */
835  if( cons->initconsspos == -1 )
836  cons->initconsspos = insertpos;
837 
838  checkConssArrays(conshdlr);
839 
840  return SCIP_OKAY;
841 }
842 
843 /** deletes constraint from the initconss array of constraint handler */
844 static
846  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
847  SCIP_CONS* cons /**< constraint to remove */
848  )
849 {
850  int delpos;
851 
852  assert(conshdlr != NULL);
853  assert(cons != NULL);
854  assert(cons->conshdlr == conshdlr);
855  assert(!cons->original);
856  assert(0 <= cons->initconsspos && cons->initconsspos < conshdlr->ninitconss);
857 
858  delpos = cons->initconsspos;
859  if( delpos < conshdlr->ninitconsskept )
860  {
861  conshdlr->ninitconsskept--;
862  conshdlr->initconss[delpos] = conshdlr->initconss[conshdlr->ninitconsskept];
863  conshdlr->initconss[delpos]->initconsspos = delpos;
864  delpos = conshdlr->ninitconsskept;
865  }
866 
867  if( delpos < conshdlr->ninitconss-1 )
868  {
869  conshdlr->initconss[delpos] = conshdlr->initconss[conshdlr->ninitconss-1];
870  conshdlr->initconss[delpos]->initconsspos = delpos;
871  }
872  conshdlr->ninitconss--;
873  cons->initconsspos = -1;
874 
875  checkConssArrays(conshdlr);
876 }
877 
878 /** adds constraint to the sepaconss array of constraint handler */
879 static
881  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
882  SCIP_SET* set, /**< global SCIP settings */
883  SCIP_CONS* cons /**< constraint to add */
884  )
885 {
886  int insertpos;
887 
888  assert(conshdlr != NULL);
889  assert(conshdlr->nusefulsepaconss <= conshdlr->nsepaconss);
890  assert(cons != NULL);
891  assert(cons->conshdlr == conshdlr);
892  assert(!cons->original);
893  assert(cons->active);
894  assert(cons->separate);
895  assert(cons->sepaenabled);
896  assert(cons->sepaconsspos == -1);
897  assert(set != NULL);
898  assert(cons->scip == set->scip);
899  assert(!conshdlrAreUpdatesDelayed(conshdlr) || !conshdlr->duringsepa);
900 
901  SCIP_CALL( conshdlrEnsureSepaconssMem(conshdlr, set, conshdlr->nsepaconss+1) );
902  insertpos = conshdlr->nsepaconss;
903  if( !cons->obsolete )
904  {
905  if( conshdlr->nusefulsepaconss < conshdlr->nsepaconss )
906  {
907  conshdlr->sepaconss[conshdlr->nsepaconss] = conshdlr->sepaconss[conshdlr->nusefulsepaconss];
908  conshdlr->sepaconss[conshdlr->nsepaconss]->sepaconsspos = conshdlr->nsepaconss;
909  insertpos = conshdlr->nusefulsepaconss;
910  }
911  conshdlr->nusefulsepaconss++;
912  }
913  conshdlr->sepaconss[insertpos] = cons;
914  cons->sepaconsspos = insertpos;
915  conshdlr->nsepaconss++;
916 
917  checkConssArrays(conshdlr);
918 
919  return SCIP_OKAY;
920 }
921 
922 /** deletes constraint from the sepaconss array of constraint handler */
923 static
925  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
926  SCIP_CONS* cons /**< constraint to remove */
927  )
928 {
929  int delpos;
930 
931  assert(conshdlr != NULL);
932  assert(conshdlr->nusefulsepaconss <= conshdlr->nsepaconss);
933  assert(cons != NULL);
934  assert(cons->conshdlr == conshdlr);
935  assert(!cons->original);
936  assert(cons->separate);
937  assert(cons->sepaenabled);
938  assert(cons->sepaconsspos != -1);
939  assert(!conshdlrAreUpdatesDelayed(conshdlr) || !conshdlr->duringsepa);
940 
941  delpos = cons->sepaconsspos;
942  if( !cons->obsolete )
943  {
944  assert(0 <= delpos && delpos < conshdlr->nusefulsepaconss);
945 
946  if( delpos < conshdlr->lastnusefulsepaconss )
947  conshdlr->lastnusefulsepaconss--;
948 
949  conshdlr->sepaconss[delpos] = conshdlr->sepaconss[conshdlr->nusefulsepaconss-1];
950  conshdlr->sepaconss[delpos]->sepaconsspos = delpos;
951  delpos = conshdlr->nusefulsepaconss-1;
952  conshdlr->nusefulsepaconss--;
953  assert(conshdlr->nusefulsepaconss >= 0);
954  assert(conshdlr->lastnusefulsepaconss >= 0);
955  }
956  assert(conshdlr->nusefulsepaconss <= delpos && delpos < conshdlr->nsepaconss);
957  if( delpos < conshdlr->nsepaconss-1 )
958  {
959  conshdlr->sepaconss[delpos] = conshdlr->sepaconss[conshdlr->nsepaconss-1];
960  conshdlr->sepaconss[delpos]->sepaconsspos = delpos;
961  }
962  conshdlr->nsepaconss--;
963  cons->sepaconsspos = -1;
964 
965  checkConssArrays(conshdlr);
966 }
967 
968 /** adds constraint to the enfoconss array of constraint handler */
969 static
971  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
972  SCIP_SET* set, /**< global SCIP settings */
973  SCIP_CONS* cons /**< constraint to add */
974  )
975 {
976  int insertpos;
977 
978  assert(conshdlr != NULL);
979  assert(conshdlr->nusefulenfoconss <= conshdlr->nenfoconss);
980  assert(cons != NULL);
981  assert(cons->conshdlr == conshdlr);
982  assert(!cons->original);
983  assert(cons->active);
984  assert(cons->enforce);
985  assert(cons->enfoconsspos == -1);
986  assert(set != NULL);
987  assert(cons->scip == set->scip);
988 
989  SCIP_CALL( conshdlrEnsureEnfoconssMem(conshdlr, set, conshdlr->nenfoconss+1) );
990  insertpos = conshdlr->nenfoconss;
991  if( !cons->obsolete )
992  {
993  if( conshdlr->nusefulenfoconss < conshdlr->nenfoconss )
994  {
995  conshdlr->enfoconss[conshdlr->nenfoconss] = conshdlr->enfoconss[conshdlr->nusefulenfoconss];
996  conshdlr->enfoconss[conshdlr->nenfoconss]->enfoconsspos = conshdlr->nenfoconss;
997  insertpos = conshdlr->nusefulenfoconss;
998  }
999  conshdlr->nusefulenfoconss++;
1000  }
1001  else
1002  {
1003  /* we have to make sure that even this obsolete constraint is enforced in the next enforcement call;
1004  * if the same LP or pseudo solution is enforced again, only the newly added useful constraints are
1005  * enforced; thus, we have to reset the enforcement counters and force all constraints to be
1006  * enforced again; this is not needed for separation and propagation, because they are not vital for correctness
1007  */
1008  conshdlr->lastenfolplpcount = -1;
1009  conshdlr->lastenfolpdomchgcount = -1;
1010  conshdlr->lastenfopsdomchgcount = -1;
1011  conshdlr->lastenforelaxdomchgcount = -1;
1012  conshdlr->lastenforelaxrelaxcount = -1;
1013  conshdlr->lastenfolpnode = -1;
1014  conshdlr->lastenfopsnode = -1;
1015  }
1016  conshdlr->enfoconss[insertpos] = cons;
1017  cons->enfoconsspos = insertpos;
1018  conshdlr->nenfoconss++;
1019 
1020  checkConssArrays(conshdlr);
1021 
1022  return SCIP_OKAY;
1023 }
1024 
1025 /** deletes constraint from the enfoconss array of constraint handler */
1026 static
1027 void conshdlrDelEnfocons(
1028  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
1029  SCIP_CONS* cons /**< constraint to remove */
1030  )
1031 {
1032  int delpos;
1033 
1034  assert(conshdlr != NULL);
1035  assert(conshdlr->nusefulenfoconss <= conshdlr->nenfoconss);
1036  assert(cons != NULL);
1037  assert(cons->conshdlr == conshdlr);
1038  assert(!cons->original);
1039  assert(cons->enforce);
1040  assert(cons->enfoconsspos != -1);
1041 
1042  delpos = cons->enfoconsspos;
1043  if( !cons->obsolete )
1044  {
1045  assert(0 <= delpos && delpos < conshdlr->nusefulenfoconss);
1046 
1047  if( delpos < conshdlr->lastnusefulenfoconss )
1048  conshdlr->lastnusefulenfoconss--;
1049 
1050  conshdlr->enfoconss[delpos] = conshdlr->enfoconss[conshdlr->nusefulenfoconss-1];
1051  conshdlr->enfoconss[delpos]->enfoconsspos = delpos;
1052  delpos = conshdlr->nusefulenfoconss-1;
1053  conshdlr->nusefulenfoconss--;
1054 
1055  /* if the constraint that moved to the free position was a newly added constraint and not enforced in the last
1056  * enforcement, we have to make sure it will be enforced in the next run;
1057  * this check is not performed for separation and propagation, because they are not vital for correctness
1058  */
1059  if( delpos >= conshdlr->lastnusefulenfoconss )
1060  conshdlr->lastnusefulenfoconss = cons->enfoconsspos;
1061 
1062  assert(conshdlr->nusefulenfoconss >= 0);
1063  assert(conshdlr->lastnusefulenfoconss >= 0);
1064  }
1065  assert(conshdlr->nusefulenfoconss <= delpos && delpos < conshdlr->nenfoconss);
1066  if( delpos < conshdlr->nenfoconss-1 )
1067  {
1068  conshdlr->enfoconss[delpos] = conshdlr->enfoconss[conshdlr->nenfoconss-1];
1069  conshdlr->enfoconss[delpos]->enfoconsspos = delpos;
1070  }
1071  conshdlr->nenfoconss--;
1072  cons->enfoconsspos = -1;
1073 
1074  checkConssArrays(conshdlr);
1075 }
1076 
1077 /** adds constraint to the checkconss array of constraint handler */
1078 static
1080  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
1081  SCIP_SET* set, /**< global SCIP settings */
1082  SCIP_CONS* cons /**< constraint to add */
1083  )
1084 {
1085  int insertpos;
1086 
1087  assert(conshdlr != NULL);
1088  assert(conshdlr->nusefulcheckconss <= conshdlr->ncheckconss);
1089  assert(cons != NULL);
1090  assert(cons->conshdlr == conshdlr);
1091  assert(!cons->original);
1092  assert(cons->active);
1093  assert(cons->check);
1094  assert(cons->checkconsspos == -1);
1095  assert(set != NULL);
1096  assert(cons->scip == set->scip);
1097 
1098  SCIP_CALL( conshdlrEnsureCheckconssMem(conshdlr, set, conshdlr->ncheckconss+1) );
1099  insertpos = conshdlr->ncheckconss;
1100  if( !cons->obsolete )
1101  {
1102  if( conshdlr->nusefulcheckconss < conshdlr->ncheckconss )
1103  {
1104  assert(conshdlr->checkconss[conshdlr->nusefulcheckconss] != NULL);
1105  conshdlr->checkconss[conshdlr->ncheckconss] = conshdlr->checkconss[conshdlr->nusefulcheckconss];
1106  conshdlr->checkconss[conshdlr->ncheckconss]->checkconsspos = conshdlr->ncheckconss;
1107  insertpos = conshdlr->nusefulcheckconss;
1108  }
1109  conshdlr->nusefulcheckconss++;
1110  }
1111  assert(0 <= insertpos && insertpos <= conshdlr->ncheckconss);
1112  conshdlr->checkconss[insertpos] = cons;
1113  cons->checkconsspos = insertpos;
1114  conshdlr->ncheckconss++;
1115 
1116  checkConssArrays(conshdlr);
1117 
1118  return SCIP_OKAY;
1119 }
1120 
1121 /** deletes constraint from the checkconss array of constraint handler */
1122 static
1124  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
1125  SCIP_CONS* cons /**< constraint to add */
1126  )
1127 {
1128  int delpos;
1129 
1130  assert(conshdlr != NULL);
1131  assert(conshdlr->nusefulcheckconss <= conshdlr->ncheckconss);
1132  assert(cons != NULL);
1133  assert(cons->conshdlr == conshdlr);
1134  assert(!cons->original);
1135  assert(cons->active);
1136  assert(cons->check);
1137  assert(cons->checkconsspos != -1);
1138 
1139  delpos = cons->checkconsspos;
1140  if( !cons->obsolete )
1141  {
1142  assert(0 <= delpos && delpos < conshdlr->nusefulcheckconss);
1143  conshdlr->checkconss[delpos] = conshdlr->checkconss[conshdlr->nusefulcheckconss-1];
1144  conshdlr->checkconss[delpos]->checkconsspos = delpos;
1145  delpos = conshdlr->nusefulcheckconss-1;
1146  conshdlr->nusefulcheckconss--;
1147  }
1148  assert(conshdlr->nusefulcheckconss <= delpos && delpos < conshdlr->ncheckconss);
1149  if( delpos < conshdlr->ncheckconss-1 )
1150  {
1151  conshdlr->checkconss[delpos] = conshdlr->checkconss[conshdlr->ncheckconss-1];
1152  conshdlr->checkconss[delpos]->checkconsspos = delpos;
1153  }
1154  conshdlr->ncheckconss--;
1155  cons->checkconsspos = -1;
1156 
1157  checkConssArrays(conshdlr);
1158 }
1159 
1160 /** adds constraint to the propconss array of constraint handler */
1161 static
1163  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
1164  SCIP_SET* set, /**< global SCIP settings */
1165  SCIP_CONS* cons /**< constraint to add */
1166  )
1167 {
1168  int insertpos;
1169 
1170  assert(conshdlr != NULL);
1171  assert(conshdlr->nusefulpropconss <= conshdlr->npropconss);
1172  assert(cons != NULL);
1173  assert(cons->conshdlr == conshdlr);
1174  assert(!cons->original);
1175  assert(cons->active);
1176  assert(cons->enabled);
1177  assert(cons->propagate);
1178  assert(cons->propenabled);
1179  assert(cons->propconsspos == -1);
1180  assert(set != NULL);
1181  assert(cons->scip == set->scip);
1182  assert(!conshdlrAreUpdatesDelayed(conshdlr) || !conshdlr->duringprop);
1183 
1184  /* add constraint to the propagation array */
1185  SCIP_CALL( conshdlrEnsurePropconssMem(conshdlr, set, conshdlr->npropconss+1) );
1186  insertpos = conshdlr->npropconss;
1187  if( !cons->obsolete )
1188  {
1189  if( conshdlr->nusefulpropconss < conshdlr->npropconss )
1190  {
1191  conshdlr->propconss[conshdlr->npropconss] = conshdlr->propconss[conshdlr->nusefulpropconss];
1192  conshdlr->propconss[conshdlr->npropconss]->propconsspos = conshdlr->npropconss;
1193  insertpos = conshdlr->nusefulpropconss;
1194  }
1195  conshdlr->nusefulpropconss++;
1196  }
1197  conshdlr->propconss[insertpos] = cons;
1198  cons->propconsspos = insertpos;
1199  conshdlr->npropconss++;
1200 
1201  /* if the constraint is marked to be propagated, we have to move it to the first part of the array */
1202  if( cons->markpropagate )
1203  {
1204  /* temporarily unmark the constraint to be propagated, such that we can use the method below */
1205  cons->markpropagate = FALSE;
1206 
1207  conshdlrMarkConsPropagate(cons->conshdlr, cons);
1208  assert(cons->markpropagate);
1209  }
1210 
1211  checkConssArrays(conshdlr);
1212 
1213  return SCIP_OKAY;
1214 }
1215 
1216 /** deletes constraint from the propconss array of constraint handler */
1217 static
1218 void conshdlrDelPropcons(
1219  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
1220  SCIP_CONS* cons /**< constraint to remove */
1221  )
1222 {
1223  int delpos;
1224 
1225  assert(conshdlr != NULL);
1226  assert(conshdlr->nusefulpropconss <= conshdlr->npropconss);
1227  assert(cons != NULL);
1228  assert(cons->conshdlr == conshdlr);
1229  assert(!cons->original);
1230  assert(cons->propagate);
1231  assert(cons->propenabled);
1232  assert(cons->propconsspos != -1);
1233  assert(!conshdlrAreUpdatesDelayed(conshdlr) || !conshdlr->duringprop);
1234 
1235  /* unmark constraint to be propagated; this will move the constraint to the obsolete or non-obsolete part of the
1236  * array, depending on its age
1237  */
1238  if( cons->markpropagate )
1239  {
1241  assert(!cons->markpropagate);
1242  }
1243 
1244  /* delete constraint from the propagation array */
1245  delpos = cons->propconsspos;
1246  assert(delpos >= conshdlr->nmarkedpropconss);
1247  if( !cons->obsolete )
1248  {
1249  assert(0 <= delpos && delpos < conshdlr->nusefulpropconss);
1250 
1251  if( delpos < conshdlr->lastnusefulpropconss )
1252  conshdlr->lastnusefulpropconss--;
1253 
1254  conshdlr->propconss[delpos] = conshdlr->propconss[conshdlr->nusefulpropconss-1];
1255  conshdlr->propconss[delpos]->propconsspos = delpos;
1256  delpos = conshdlr->nusefulpropconss-1;
1257  conshdlr->nusefulpropconss--;
1258  assert(conshdlr->nusefulpropconss >= 0);
1259  assert(conshdlr->lastnusefulpropconss >= 0);
1260  }
1261  assert(conshdlr->nusefulpropconss <= delpos && delpos < conshdlr->npropconss);
1262 
1263  if( delpos < conshdlr->npropconss-1 )
1264  {
1265  conshdlr->propconss[delpos] = conshdlr->propconss[conshdlr->npropconss-1];
1266  conshdlr->propconss[delpos]->propconsspos = delpos;
1267  }
1268  conshdlr->npropconss--;
1269  cons->propconsspos = -1;
1270  assert(conshdlr->nmarkedpropconss <= conshdlr->npropconss);
1271 
1272  checkConssArrays(conshdlr);
1273 }
1274 
1275 /** enables separation of constraint */
1276 static
1278  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
1279  SCIP_SET* set, /**< global SCIP settings */
1280  SCIP_CONS* cons /**< constraint to add */
1281  )
1282 {
1283  assert(conshdlr != NULL);
1284  assert(conshdlr->nusefulsepaconss <= conshdlr->nsepaconss);
1285  assert(cons != NULL);
1286  assert(cons->conshdlr == conshdlr);
1287  assert(!cons->sepaenabled);
1288  assert(cons->sepaconsspos == -1);
1289  assert(set != NULL);
1290  assert(cons->scip == set->scip);
1291 
1292  SCIPsetDebugMsg(set, "enable separation of constraint <%s> in constraint handler <%s>\n", cons->name, conshdlr->name);
1293 
1294  /* enable separation of constraint */
1295  cons->sepaenabled = TRUE;
1296 
1297  /* add constraint to the separation array */
1298  if( cons->enabled && cons->separate )
1299  {
1300  SCIP_CALL( conshdlrAddSepacons(conshdlr, set, cons) );
1301  }
1302 
1303  return SCIP_OKAY;
1304 }
1305 
1306 /** disables separation of constraint */
1307 static
1309  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
1310  SCIP_CONS* cons /**< constraint to remove */
1311  )
1312 {
1313  assert(conshdlr != NULL);
1314  assert(conshdlr->nusefulsepaconss <= conshdlr->nsepaconss);
1315  assert(cons != NULL);
1316  assert(cons->conshdlr == conshdlr);
1317  assert(cons->sepaenabled);
1318  assert((cons->separate && cons->enabled) == (cons->sepaconsspos != -1));
1319 
1320  SCIPdebugMessage("disable separation of constraint <%s> in constraint handler <%s>\n", cons->name, conshdlr->name);
1321 
1322  /* delete constraint from the separation array */
1323  if( cons->separate && cons->enabled )
1324  {
1325  conshdlrDelSepacons(conshdlr, cons);
1326  }
1327  assert(cons->sepaconsspos == -1);
1328 
1329  /* disable separation of constraint */
1330  cons->sepaenabled = FALSE;
1331 
1332  return SCIP_OKAY;
1333 }
1334 
1335 /** enables propagation of constraint */
1336 static
1338  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
1339  SCIP_SET* set, /**< global SCIP settings */
1340  SCIP_CONS* cons /**< constraint to add */
1341  )
1342 {
1343  assert(conshdlr != NULL);
1344  assert(conshdlr->nusefulpropconss <= conshdlr->npropconss);
1345  assert(cons != NULL);
1346  assert(cons->conshdlr == conshdlr);
1347  assert(!cons->propenabled);
1348  assert(cons->propconsspos == -1);
1349  assert(set != NULL);
1350  assert(cons->scip == set->scip);
1351 
1352  SCIPsetDebugMsg(set, "enable propagation of constraint <%s> in constraint handler <%s>\n", cons->name, conshdlr->name);
1353 
1354  /* enable propagation of constraint */
1355  cons->propenabled = TRUE;
1356 
1357  /* add constraint to the propagation array */
1358  if( cons->enabled && cons->propagate )
1359  {
1360  SCIP_CALL( conshdlrAddPropcons(conshdlr, set, cons) );
1361  }
1362 
1363  return SCIP_OKAY;
1364 }
1365 
1366 /** disables propagation of constraint */
1367 static
1369  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
1370  SCIP_CONS* cons /**< constraint to remove */
1371  )
1372 {
1373  assert(conshdlr != NULL);
1374  assert(conshdlr->nusefulpropconss <= conshdlr->npropconss);
1375  assert(cons != NULL);
1376  assert(cons->conshdlr == conshdlr);
1377  assert(cons->propenabled);
1378  assert((cons->propagate && cons->enabled) == (cons->propconsspos != -1));
1379 
1380  SCIPdebugMessage("disable propagation of constraint <%s> in constraint handler <%s>\n", cons->name, conshdlr->name);
1381 
1382  /* delete constraint from the propagation array */
1383  if( cons->propagate && cons->enabled )
1384  {
1385  conshdlrDelPropcons(conshdlr, cons);
1386  }
1387  assert(cons->propconsspos == -1);
1388 
1389  /* disable propagation of constraint */
1390  cons->propenabled = FALSE;
1391 
1392  return SCIP_OKAY;
1393 }
1394 
1395 /** enables separation, enforcement, and propagation of constraint */
1396 static
1398  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
1399  SCIP_SET* set, /**< global SCIP settings */
1400  SCIP_STAT* stat, /**< dynamic problem statistics */
1401  SCIP_CONS* cons /**< constraint to add */
1402  )
1403 {
1404  assert(conshdlr != NULL);
1405  assert(conshdlr->nusefulsepaconss <= conshdlr->nsepaconss);
1406  assert(conshdlr->nusefulenfoconss <= conshdlr->nenfoconss);
1407  assert(conshdlr->nusefulcheckconss <= conshdlr->ncheckconss);
1408  assert(conshdlr->nusefulpropconss <= conshdlr->npropconss);
1409  assert(set != NULL);
1410  assert(stat != NULL);
1411  assert(cons != NULL);
1412  assert(cons->scip == set->scip);
1413  assert(cons->conshdlr == conshdlr);
1414  assert(!cons->original);
1415  assert(cons->active);
1416  assert(!cons->enabled);
1417  assert(cons->sepaconsspos == -1);
1418  assert(cons->enfoconsspos == -1);
1419  assert(cons->propconsspos == -1);
1420 
1421  SCIPsetDebugMsg(set, "enable constraint <%s> in constraint handler <%s>\n", cons->name, conshdlr->name);
1422 
1423  /* enable constraint */
1424  cons->enabled = TRUE;
1425  conshdlr->nenabledconss++;
1426  stat->nenabledconss++;
1427 
1428  /* add constraint to the separation array */
1429  if( cons->separate && cons->sepaenabled )
1430  {
1431  SCIP_CALL( conshdlrAddSepacons(conshdlr, set, cons) );
1432  }
1433 
1434  /* add constraint to the enforcement array */
1435  if( cons->enforce )
1436  {
1437  SCIP_CALL( conshdlrAddEnfocons(conshdlr, set, cons) );
1438  }
1439 
1440  /* add constraint to the propagation array */
1441  if( cons->propagate && cons->propenabled )
1442  {
1443  SCIP_CALL( conshdlrAddPropcons(conshdlr, set, cons) );
1444  }
1445 
1446  /* call constraint handler's enabling notification method */
1447  if( conshdlr->consenable != NULL )
1448  {
1449  SCIP_CALL( conshdlr->consenable(set->scip, conshdlr, cons) );
1450  }
1451 
1452  checkConssArrays(conshdlr);
1453 
1454  return SCIP_OKAY;
1455 }
1456 
1457 /** disables separation, enforcement, and propagation of constraint */
1458 static
1460  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
1461  SCIP_SET* set, /**< global SCIP settings */
1462  SCIP_STAT* stat, /**< dynamic problem statistics */
1463  SCIP_CONS* cons /**< constraint to remove */
1464  )
1465 {
1466  assert(conshdlr != NULL);
1467  assert(conshdlr->nusefulsepaconss <= conshdlr->nsepaconss);
1468  assert(conshdlr->nusefulenfoconss <= conshdlr->nenfoconss);
1469  assert(conshdlr->nusefulcheckconss <= conshdlr->ncheckconss);
1470  assert(conshdlr->nusefulpropconss <= conshdlr->npropconss);
1471  assert(set != NULL);
1472  assert(stat != NULL);
1473  assert(cons != NULL);
1474  assert(cons->scip == set->scip);
1475  assert(cons->conshdlr == conshdlr);
1476  assert(!cons->original);
1477  assert(cons->active);
1478  assert(cons->enabled);
1479  assert((cons->separate && cons->sepaenabled) == (cons->sepaconsspos != -1));
1480  assert(cons->enforce == (cons->enfoconsspos != -1));
1481  assert((cons->propagate && cons->propenabled) == (cons->propconsspos != -1));
1482 
1483  SCIPsetDebugMsg(set, "disable constraint <%s> in constraint handler <%s>\n", cons->name, conshdlr->name);
1484 
1485  /* call constraint handler's disabling notification method */
1486  if( conshdlr->consdisable != NULL )
1487  {
1488  SCIP_CALL( conshdlr->consdisable(set->scip, conshdlr, cons) );
1489  }
1490 
1491  /* delete constraint from the separation array */
1492  if( cons->separate && cons->sepaenabled )
1493  {
1494  conshdlrDelSepacons(conshdlr, cons);
1495  }
1496 
1497  /* delete constraint from the enforcement array */
1498  if( cons->enforce )
1499  {
1500  conshdlrDelEnfocons(conshdlr, cons);
1501  }
1502 
1503  /* delete constraint from the propagation array */
1504  if( cons->propagate && cons->propenabled )
1505  {
1506  conshdlrDelPropcons(conshdlr, cons);
1507  }
1508 
1509  assert(cons->sepaconsspos == -1);
1510  assert(cons->enfoconsspos == -1);
1511  assert(cons->propconsspos == -1);
1512 
1513  /* disable constraint */
1514  cons->enabled = FALSE;
1515  conshdlr->nenabledconss--;
1516  stat->nenabledconss--;
1517 
1518  checkConssArrays(conshdlr);
1519 
1520  return SCIP_OKAY;
1521 }
1522 
1523 /** activates and adds constraint to constraint handler's constraint arrays */
1524 static
1526  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
1527  SCIP_SET* set, /**< global SCIP settings */
1528  SCIP_STAT* stat, /**< dynamic problem statistics */
1529  SCIP_CONS* cons, /**< constraint to add */
1530  int depth, /**< depth in the tree where the activation takes place, or -1 for global problem */
1531  SCIP_Bool focusnode /**< does the constraint activation take place at the focus node? */
1532  )
1533 {
1534  assert(conshdlr != NULL);
1535  assert(conshdlr->nusefulsepaconss <= conshdlr->nsepaconss);
1536  assert(conshdlr->nusefulenfoconss <= conshdlr->nenfoconss);
1537  assert(conshdlr->nusefulcheckconss <= conshdlr->ncheckconss);
1538  assert(conshdlr->nusefulpropconss <= conshdlr->npropconss);
1539  assert(set != NULL);
1540  assert(stat != NULL);
1541  assert(cons != NULL);
1542  assert(cons->scip == set->scip);
1543  assert(cons->conshdlr == conshdlr);
1544  assert(!cons->original);
1545  assert(!cons->active);
1546  assert(!cons->enabled);
1547  assert(conshdlr->nactiveconss <= cons->consspos && cons->consspos < conshdlr->nconss);
1548  assert(conshdlr->conss[cons->consspos] == cons);
1549  assert(cons->initconsspos < conshdlr->ninitconsskept);
1550  assert(cons->sepaconsspos == -1);
1551  assert(cons->enfoconsspos == -1);
1552  assert(cons->checkconsspos == -1);
1553  assert(cons->propconsspos == -1);
1554  assert(depth >= -1);
1555 
1556  SCIPsetDebugMsg(set, "activate constraint <%s> in constraint handler <%s> (depth %d, focus=%u)\n",
1557  cons->name, conshdlr->name, depth, focusnode);
1558 
1559  /* activate constraint, switch positions with first inactive constraint */
1560  cons->active = TRUE;
1561  cons->activedepth = depth;
1562  conshdlr->conss[cons->consspos] = conshdlr->conss[conshdlr->nactiveconss];
1563  conshdlr->conss[cons->consspos]->consspos = cons->consspos;
1564  conshdlr->conss[conshdlr->nactiveconss] = cons;
1565  cons->consspos = conshdlr->nactiveconss;
1566  conshdlr->nactiveconss++;
1567  conshdlr->maxnactiveconss = MAX(conshdlr->maxnactiveconss, conshdlr->nactiveconss);
1568  stat->nactiveconss++;
1569 
1570  /* add constraint to the check array */
1571  if( cons->check )
1572  {
1573  SCIP_CALL( conshdlrAddCheckcons(conshdlr, set, cons) );
1574  }
1575 
1576  /* add constraint to the initconss array if the constraint is initial and added to the focus node */
1577  if( cons->initial )
1578  {
1579  SCIP_CALL( conshdlrAddInitcons(conshdlr, set, stat, cons) );
1580  }
1581 
1582  /* call constraint handler's activation notification method */
1583  if( conshdlr->consactive != NULL )
1584  {
1585  SCIP_CALL( conshdlr->consactive(set->scip, conshdlr, cons) );
1586  }
1587 
1588  /* enable separation, enforcement, and propagation of constraint */
1589  SCIP_CALL( conshdlrEnableCons(conshdlr, set, stat, cons) );
1590 
1591  assert(0 <= cons->consspos && cons->consspos < conshdlr->nactiveconss);
1592 
1593  checkConssArrays(conshdlr);
1594 
1595  return SCIP_OKAY;
1596 }
1597 
1598 /** deactivates and removes constraint from constraint handler's conss array */
1599 static
1601  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
1602  SCIP_SET* set, /**< global SCIP settings */
1603  SCIP_STAT* stat, /**< dynamic problem statistics */
1604  SCIP_CONS* cons /**< constraint to remove */
1605  )
1606 {
1607  assert(conshdlr != NULL);
1608  assert(conshdlr->nusefulsepaconss <= conshdlr->nsepaconss);
1609  assert(conshdlr->nusefulenfoconss <= conshdlr->nenfoconss);
1610  assert(conshdlr->nusefulcheckconss <= conshdlr->ncheckconss);
1611  assert(conshdlr->nusefulpropconss <= conshdlr->npropconss);
1612  assert(set != NULL);
1613  assert(stat != NULL);
1614  assert(cons != NULL);
1615  assert(cons->scip == set->scip);
1616  assert(cons->conshdlr == conshdlr);
1617  assert(!cons->original);
1618  assert(cons->active);
1619  assert(0 <= cons->consspos && cons->consspos < conshdlr->nactiveconss);
1620  assert(conshdlr->conss[cons->consspos] == cons);
1621  assert(cons->check == (cons->checkconsspos != -1));
1622 
1623  SCIPsetDebugMsg(set, "deactivate constraint <%s> in constraint handler <%s>\n", cons->name, conshdlr->name);
1624 
1625  /* disable constraint */
1626  if( cons->enabled )
1627  {
1628  SCIP_CALL( conshdlrDisableCons(conshdlr, set, stat, cons) );
1629  }
1630  assert(!cons->enabled);
1631 
1632  /* call constraint handler's deactivation notification method */
1633  if( conshdlr->consdeactive != NULL )
1634  {
1635  SCIP_CALL( conshdlr->consdeactive(set->scip, conshdlr, cons) );
1636  }
1637 
1638  /* delete constraint from the initconss array */
1639  if( cons->initconsspos >= 0 )
1640  {
1641  conshdlrDelInitcons(conshdlr, cons);
1642  }
1643 
1644  /* delete constraint from the check array */
1645  if( cons->check )
1646  {
1647  conshdlrDelCheckcons(conshdlr, cons);
1648  }
1649 
1650  /* switch constraint with the last active constraint in the conss array */
1651  conshdlr->conss[cons->consspos] = conshdlr->conss[conshdlr->nactiveconss-1];
1652  conshdlr->conss[cons->consspos]->consspos = cons->consspos;
1653  conshdlr->conss[conshdlr->nactiveconss-1] = cons;
1654  cons->consspos = conshdlr->nactiveconss-1;
1655  conshdlr->nactiveconss--;
1656  cons->active = FALSE;
1657  cons->activedepth = -2;
1658  stat->nactiveconss--;
1659 
1660  assert(conshdlr->nactiveconss <= cons->consspos && cons->consspos < conshdlr->nconss);
1661  assert(cons->initconsspos == -1);
1662  assert(cons->sepaconsspos == -1);
1663  assert(cons->enfoconsspos == -1);
1664  assert(cons->checkconsspos == -1);
1665  assert(cons->propconsspos == -1);
1666 
1667  checkConssArrays(conshdlr);
1668 
1669  return SCIP_OKAY;
1670 }
1671 
1672 /** processes all delayed updates of constraints:
1673  * recently (de)activated constraints will be (de)activated;
1674  * recently en/disabled constraints will be en/disabled;
1675  * recent obsolete non-check constraints will be globally deleted;
1676  * recent obsolete check constraints will be moved to the last positions in the sepa-, enfo-, check-, and prop-arrays;
1677  * recent useful constraints will be moved to the first positions in the sepa-, enfo-, check-, and prop-arrays;
1678  * constraints which were recently marked to be propagated are moved to the first positions in the prop-array;
1679  * no longer used constraints will be freed and removed from the conss array
1680  */
1681 static
1683  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
1684  BMS_BLKMEM* blkmem, /**< block memory */
1685  SCIP_SET* set, /**< global SCIP settings */
1686  SCIP_STAT* stat /**< dynamic problem statistics */
1687  )
1688 {
1689  SCIP_CONS* cons;
1690  int i;
1691 
1692  assert(conshdlr != NULL);
1693  assert(!conshdlrAreUpdatesDelayed(conshdlr));
1694  assert(conshdlr->nusefulsepaconss <= conshdlr->nsepaconss);
1695  assert(conshdlr->nusefulenfoconss <= conshdlr->nenfoconss);
1696  assert(conshdlr->nusefulcheckconss <= conshdlr->ncheckconss);
1697  assert(conshdlr->nusefulpropconss <= conshdlr->npropconss);
1698 
1699  SCIPsetDebugMsg(set, "processing %d constraints that have to be updated in constraint handler <%s>\n",
1700  conshdlr->nupdateconss, conshdlr->name);
1701 
1702  for( i = conshdlr->nupdateconss - 1; i >= 0; --i )
1703  {
1704  cons = conshdlr->updateconss[i];
1705  assert(cons != NULL);
1706  assert(cons->conshdlr == conshdlr);
1707  assert(cons->update);
1708  assert(cons->updateinsert || cons->updateactivate || cons->updatedeactivate
1709  || cons->updateenable || cons->updatedisable
1710  || cons->updatesepaenable || cons->updatesepadisable
1711  || cons->updatepropenable || cons->updatepropdisable
1712  || cons->updateobsolete || cons->updatefree
1713  || cons->updatemarkpropagate || cons->updateunmarkpropagate);
1714 
1715  SCIPsetDebugMsg(set, " -> constraint <%s>: insert=%u, activate=%u, deactivate=%u, enable=%u, disable=%u, sepaenable=%u, sepadisable=%u, propenable=%u, propdisable=%u, obsolete=%u, free=%u (consdata=%p)\n",
1716  cons->name, cons->updateinsert, cons->updateactivate, cons->updatedeactivate,
1717  cons->updateenable, cons->updatedisable,
1718  cons->updatesepaenable, cons->updatesepadisable,
1719  cons->updatepropenable, cons->updatepropdisable,
1720  cons->updateobsolete, cons->updatefree, (void*)cons->consdata);
1721 
1722  if( cons->updateinsert )
1723  {
1724  SCIP_CALL( conshdlrAddCons(conshdlr, set, cons) );
1725  cons->updateinsert = FALSE;
1726  }
1727 
1728  if( cons->updateactivate )
1729  {
1730  assert(!cons->active);
1731  assert(!cons->updatedeactivate);
1732  assert(!cons->updateenable);
1733  assert(!cons->updatedisable);
1734  assert(!cons->updateobsolete);
1735  assert(!cons->updatefree);
1736 
1737  /* the activation depth was already stored in SCIPconsActivate() */
1738  SCIP_CALL( conshdlrActivateCons(conshdlr, set, stat, cons, cons->activedepth, cons->updateactfocus) );
1739  assert(cons->active);
1740  cons->updateactivate = FALSE;
1741  }
1742  else if( cons->updatedeactivate )
1743  {
1744  assert(cons->active);
1745 
1746  SCIP_CALL( conshdlrDeactivateCons(conshdlr, set, stat, cons) );
1747  assert(!cons->active);
1748  cons->updatedeactivate = FALSE;
1749  cons->updateenable = FALSE;
1750  cons->updatedisable = FALSE;
1751  cons->obsolete = consExceedsObsoleteage(cons, set);
1752  cons->updateobsolete = FALSE;
1753  }
1754  else if( cons->updateenable )
1755  {
1756  assert(!cons->enabled);
1757  assert(!cons->updatedisable);
1758 
1759  SCIP_CALL( conshdlrEnableCons(conshdlr, set, stat, cons) );
1760  assert(cons->enabled);
1761  cons->updateenable = FALSE;
1762  }
1763  else if( cons->updatedisable )
1764  {
1765  assert(cons->enabled);
1766 
1767  SCIP_CALL( conshdlrDisableCons(conshdlr, set, stat, cons) );
1768  assert(!cons->enabled);
1769  cons->updatedisable = FALSE;
1770  }
1771 
1772  if( cons->updatesepaenable )
1773  {
1774  assert(!cons->updatesepadisable);
1775  if( !cons->sepaenabled )
1776  {
1777  SCIP_CALL( conshdlrEnableConsSeparation(conshdlr, set, cons) );
1778  assert(cons->sepaenabled);
1779  }
1780  cons->updatesepaenable = FALSE;
1781  }
1782  else if( cons->updatesepadisable )
1783  {
1784  if( cons->sepaenabled )
1785  {
1786  SCIP_CALL( conshdlrDisableConsSeparation(conshdlr, cons) );
1787  assert(!cons->sepaenabled);
1788  }
1789  cons->updatesepadisable = FALSE;
1790  }
1791 
1792  if( cons->updatepropenable )
1793  {
1794  assert(!cons->updatepropdisable);
1795  if( !cons->propenabled )
1796  {
1797  SCIP_CALL( conshdlrEnableConsPropagation(conshdlr, set, cons) );
1798  assert(cons->propenabled);
1799  }
1800  cons->updatepropenable = FALSE;
1801  }
1802  else if( cons->updatepropdisable )
1803  {
1804  if( cons->propenabled )
1805  {
1806  SCIP_CALL( conshdlrDisableConsPropagation(conshdlr, cons) );
1807  assert(!cons->propenabled);
1808  }
1809  cons->updatepropdisable = FALSE;
1810  }
1811 
1812  if( cons->updatefree )
1813  {
1814  /* nothing to do here: the constraint is freed, when it is released from the updateconss array */
1815  assert(cons->nuses == 1); /* it only exists in the updateconss array */
1816  cons->updatefree = FALSE;
1817  cons->updateobsolete = FALSE;
1818  }
1819  else
1820  {
1821  if( cons->updateobsolete )
1822  {
1823  if( !cons->obsolete && consExceedsObsoleteage(cons, set) )
1824  {
1825  /* the constraint's status must be switched to obsolete */
1826  SCIP_CALL( conshdlrMarkConsObsolete(conshdlr, cons) );
1827  }
1828  else if( cons->obsolete && !consExceedsObsoleteage(cons, set) )
1829  {
1830  /* the constraint's status must be switched to useful */
1831  SCIP_CALL( conshdlrMarkConsUseful(conshdlr, cons) );
1832  }
1833  cons->updateobsolete = FALSE;
1834  }
1835 
1836  if( cons->updatemarkpropagate )
1837  {
1838  /* the constraint must be marked to be propagated */
1839  conshdlrMarkConsPropagate(conshdlr, cons);
1840  cons->updatemarkpropagate = FALSE;
1841  }
1842  else if( cons->updateunmarkpropagate )
1843  {
1844  /* the constraint must be unmarked to be propagated */
1845  conshdlrUnmarkConsPropagate(conshdlr, cons);
1846  cons->updateunmarkpropagate = FALSE;
1847  }
1848  }
1849 
1850  assert(!cons->updateinsert);
1851  assert(!cons->updateactivate);
1852  assert(!cons->updatedeactivate);
1853  assert(!cons->updateenable);
1854  assert(!cons->updatedisable);
1855  assert(!cons->updatesepaenable);
1856  assert(!cons->updatesepadisable);
1857  assert(!cons->updatepropenable);
1858  assert(!cons->updatepropdisable);
1859  assert(!cons->updateobsolete);
1860  assert(!cons->updatemarkpropagate);
1861  assert(!cons->updateunmarkpropagate);
1862  assert(!cons->updatefree);
1863  cons->update = FALSE;
1864 
1865  /* release the constraint */
1866  SCIP_CALL( SCIPconsRelease(&conshdlr->updateconss[i], blkmem, set) );
1867  }
1868 
1869  conshdlr->nupdateconss = 0;
1870 
1871  return SCIP_OKAY;
1872 }
1873 
1874 /** marks constraint handler to delay all constraint updates until the next conshdlrProcessUpdates() call */
1875 static
1877  SCIP_CONSHDLR* conshdlr /**< constraint handler */
1878  )
1879 {
1880  assert(conshdlr != NULL);
1881 
1882  SCIPdebugMessage("constraint updates of constraint handler <%s> will be delayed (count:%d)\n",
1883  conshdlr->name, conshdlr->delayupdatecount+1);
1884 
1885  conshdlr->delayupdatecount++;
1886 }
1887 
1888 /** marks constraint handler to perform all constraint updates immediately;
1889  * all delayed constraint updates will be processed
1890  */
1891 static
1893  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
1894  BMS_BLKMEM* blkmem, /**< block memory */
1895  SCIP_SET* set, /**< global SCIP settings */
1896  SCIP_STAT* stat /**< dynamic problem statistics */
1897  )
1898 {
1899  assert(conshdlr != NULL);
1900  assert(conshdlrAreUpdatesDelayed(conshdlr));
1901 
1902  SCIPsetDebugMsg(set, "constraint updates of constraint handler <%s> will be processed immediately (count:%d)\n",
1903  conshdlr->name, conshdlr->delayupdatecount);
1904  conshdlr->delayupdatecount--;
1905 
1906  /* only run the update if all delays are taken away (reference counting) */
1907  if( !conshdlrAreUpdatesDelayed(conshdlr) )
1908  {
1909  SCIP_CALL( conshdlrProcessUpdates(conshdlr, blkmem, set, stat) );
1910  assert(conshdlr->nupdateconss == 0);
1911  }
1912 
1913  return SCIP_OKAY;
1914 }
1915 
1916 /** adds constraint to constraint handler's update constraint array and captures it */
1917 static
1919  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
1920  SCIP_SET* set, /**< global SCIP settings */
1921  SCIP_CONS* cons /**< constraint to add */
1922  )
1923 {
1924  assert(conshdlr != NULL);
1925  assert(set != NULL);
1926  assert(cons != NULL);
1927  assert(cons->conshdlr == conshdlr);
1928 
1929  if( !cons->update )
1930  {
1931  SCIPsetDebugMsg(set, "constraint <%s> of age %g has to be updated in constraint handler <%s> (consdata=%p)\n",
1932  cons->name, cons->age, conshdlr->name, (void*)cons->consdata);
1933 
1934  /* add constraint to the updateconss array */
1935  SCIP_CALL( conshdlrEnsureUpdateconssMem(conshdlr, set, conshdlr->nupdateconss+1) );
1936  conshdlr->updateconss[conshdlr->nupdateconss] = cons;
1937  conshdlr->nupdateconss++;
1938 
1939  /* capture constraint */
1940  SCIPconsCapture(cons);
1941 
1942  cons->update = TRUE;
1943  }
1944 
1945  return SCIP_OKAY;
1946 }
1947 
1948 /** compares two constraint handlers w. r. to their separation priority */
1949 SCIP_DECL_SORTPTRCOMP(SCIPconshdlrCompSepa)
1950 { /*lint --e{715}*/
1951  return ((SCIP_CONSHDLR*)elem2)->sepapriority - ((SCIP_CONSHDLR*)elem1)->sepapriority;
1952 }
1953 
1954 /** compares two constraint handlers w. r. to their enforcing priority */
1955 SCIP_DECL_SORTPTRCOMP(SCIPconshdlrCompEnfo)
1956 { /*lint --e{715}*/
1957  return ((SCIP_CONSHDLR*)elem2)->enfopriority - ((SCIP_CONSHDLR*)elem1)->enfopriority;
1958 }
1959 
1960 /** compares two constraint handlers w. r. to their feasibility check priority */
1961 SCIP_DECL_SORTPTRCOMP(SCIPconshdlrCompCheck)
1962 { /*lint --e{715}*/
1963  return ((SCIP_CONSHDLR*)elem2)->checkpriority - ((SCIP_CONSHDLR*)elem1)->checkpriority;
1964 }
1965 
1966 /** copies the given constraint handler to a new scip */
1968  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
1969  SCIP_SET* set, /**< SCIP_SET of SCIP to copy to */
1970  SCIP_Bool* valid /**< was the copying process valid? */
1971  )
1972 {
1973  assert(conshdlr != NULL);
1974  assert(set != NULL);
1975  assert(valid != NULL);
1976  assert(set->scip != NULL);
1977 
1978  if( conshdlr->conshdlrcopy != NULL )
1979  {
1980  SCIPsetDebugMsg(set, "including constraint handler %s in subscip %p\n", SCIPconshdlrGetName(conshdlr), (void*)set->scip);
1981  SCIP_CALL( conshdlr->conshdlrcopy(set->scip, conshdlr, valid) );
1982  }
1983 
1984  return SCIP_OKAY;
1985 }
1986 
1987 /** internal method for creating a constraint handler */
1988 static
1990  SCIP_CONSHDLR** conshdlr, /**< pointer to constraint handler data structure */
1991  SCIP_SET* set, /**< global SCIP settings */
1992  SCIP_MESSAGEHDLR* messagehdlr, /**< message handler */
1993  BMS_BLKMEM* blkmem, /**< block memory for parameter settings */
1994  const char* name, /**< name of constraint handler */
1995  const char* desc, /**< description of constraint handler */
1996  int sepapriority, /**< priority of the constraint handler for separation */
1997  int enfopriority, /**< priority of the constraint handler for constraint enforcing */
1998  int checkpriority, /**< priority of the constraint handler for checking feasibility (and propagation) */
1999  int sepafreq, /**< frequency for separating cuts; zero means to separate only in the root node */
2000  int propfreq, /**< frequency for propagating domains; zero means only preprocessing propagation */
2001  int eagerfreq, /**< frequency for using all instead of only the useful constraints in separation,
2002  * propagation and enforcement, -1 for no eager evaluations, 0 for first only */
2003  int maxprerounds, /**< maximal number of presolving rounds the constraint handler participates in (-1: no limit) */
2004  SCIP_Bool delaysepa, /**< should separation method be delayed, if other separators found cuts? */
2005  SCIP_Bool delayprop, /**< should propagation method be delayed, if other propagators found reductions? */
2006  SCIP_Bool needscons, /**< should the constraint handler be skipped, if no constraints are available? */
2007  SCIP_PROPTIMING proptiming, /**< positions in the node solving loop where propagation method of constraint handlers should be executed */
2008  SCIP_PRESOLTIMING presoltiming, /**< timing mask of the constraint handler's presolving method */
2009  SCIP_DECL_CONSHDLRCOPY((*conshdlrcopy)), /**< copy method of constraint handler or NULL if you don't want to copy your plugin into sub-SCIPs */
2010  SCIP_DECL_CONSFREE ((*consfree)), /**< destructor of constraint handler */
2011  SCIP_DECL_CONSINIT ((*consinit)), /**< initialize constraint handler */
2012  SCIP_DECL_CONSEXIT ((*consexit)), /**< deinitialize constraint handler */
2013  SCIP_DECL_CONSINITPRE ((*consinitpre)), /**< presolving initialization method of constraint handler */
2014  SCIP_DECL_CONSEXITPRE ((*consexitpre)), /**< presolving deinitialization method of constraint handler */
2015  SCIP_DECL_CONSINITSOL ((*consinitsol)), /**< solving process initialization method of constraint handler */
2016  SCIP_DECL_CONSEXITSOL ((*consexitsol)), /**< solving process deinitialization method of constraint handler */
2017  SCIP_DECL_CONSDELETE ((*consdelete)), /**< free specific constraint data */
2018  SCIP_DECL_CONSTRANS ((*constrans)), /**< transform constraint data into data belonging to the transformed problem */
2019  SCIP_DECL_CONSINITLP ((*consinitlp)), /**< initialize LP with relaxations of "initial" constraints */
2020  SCIP_DECL_CONSSEPALP ((*conssepalp)), /**< separate cutting planes for LP solution */
2021  SCIP_DECL_CONSSEPASOL ((*conssepasol)), /**< separate cutting planes for arbitrary primal solution */
2022  SCIP_DECL_CONSENFOLP ((*consenfolp)), /**< enforcing constraints for LP solutions */
2023  SCIP_DECL_CONSENFORELAX ((*consenforelax)), /**< enforcing constraints for relaxation solutions */
2024  SCIP_DECL_CONSENFOPS ((*consenfops)), /**< enforcing constraints for pseudo solutions */
2025  SCIP_DECL_CONSCHECK ((*conscheck)), /**< check feasibility of primal solution */
2026  SCIP_DECL_CONSPROP ((*consprop)), /**< propagate variable domains */
2027  SCIP_DECL_CONSPRESOL ((*conspresol)), /**< presolving method */
2028  SCIP_DECL_CONSRESPROP ((*consresprop)), /**< propagation conflict resolving method */
2029  SCIP_DECL_CONSLOCK ((*conslock)), /**< variable rounding lock method */
2030  SCIP_DECL_CONSACTIVE ((*consactive)), /**< activation notification method */
2031  SCIP_DECL_CONSDEACTIVE((*consdeactive)), /**< deactivation notification method */
2032  SCIP_DECL_CONSENABLE ((*consenable)), /**< enabling notification method */
2033  SCIP_DECL_CONSDISABLE ((*consdisable)), /**< disabling notification method */
2034  SCIP_DECL_CONSDELVARS ((*consdelvars)), /**< variable deletion method */
2035  SCIP_DECL_CONSPRINT ((*consprint)), /**< constraint display method */
2036  SCIP_DECL_CONSCOPY ((*conscopy)), /**< constraint copying method */
2037  SCIP_DECL_CONSPARSE ((*consparse)), /**< constraint parsing method */
2038  SCIP_DECL_CONSGETVARS ((*consgetvars)), /**< constraint get variables method */
2039  SCIP_DECL_CONSGETNVARS((*consgetnvars)), /**< constraint get number of variable method */
2040  SCIP_DECL_CONSGETDIVEBDCHGS((*consgetdivebdchgs)), /**< constraint handler diving solution enforcement method */
2041  SCIP_CONSHDLRDATA* conshdlrdata /**< constraint handler data */
2042  )
2043 {
2044  char paramname[SCIP_MAXSTRLEN];
2045  char paramdesc[SCIP_MAXSTRLEN];
2046 
2047  assert(conshdlr != NULL);
2048  assert(name != NULL);
2049  assert(desc != NULL);
2050  assert(conssepalp != NULL || conssepasol != NULL || sepafreq == -1);
2051  assert(consprop != NULL || propfreq == -1);
2052  assert(eagerfreq >= -1);
2053  assert(!needscons || ((conshdlrcopy == NULL) == (conscopy == NULL)));
2054 
2055  /* the interface change from delay flags to timings cannot be recognized at compile time: Exit with an appropriate
2056  * error message
2057  */
2058  if( presoltiming < SCIP_PRESOLTIMING_NONE || presoltiming > SCIP_PRESOLTIMING_MAX )
2059  {
2060  SCIPmessagePrintError("ERROR: 'PRESOLDELAY'-flag no longer available since SCIP 3.2, use an appropriate "
2061  "'SCIP_PRESOLTIMING' for <%s> constraint handler instead.\n", name);
2062 
2063  return SCIP_PARAMETERWRONGVAL;
2064  }
2065 
2066  /* both callbacks have to exist or not exist */
2067  assert((consgetvars != NULL) == (consgetnvars != NULL));
2068 
2069  SCIP_ALLOC( BMSallocMemory(conshdlr) );
2070  BMSclearMemory(*conshdlr);
2071 
2072  SCIP_ALLOC( BMSduplicateMemoryArray(&(*conshdlr)->name, name, strlen(name)+1) );
2073  SCIP_ALLOC( BMSduplicateMemoryArray(&(*conshdlr)->desc, desc, strlen(desc)+1) );
2074  (*conshdlr)->sepapriority = sepapriority;
2075  (*conshdlr)->enfopriority = enfopriority;
2076  (*conshdlr)->checkpriority = checkpriority;
2077  (*conshdlr)->sepafreq = sepafreq;
2078  (*conshdlr)->propfreq = propfreq;
2079  (*conshdlr)->eagerfreq = eagerfreq;
2080  (*conshdlr)->maxprerounds = maxprerounds;
2081  (*conshdlr)->conshdlrcopy = conshdlrcopy;
2082  (*conshdlr)->consfree = consfree;
2083  (*conshdlr)->consinit = consinit;
2084  (*conshdlr)->consexit = consexit;
2085  (*conshdlr)->consinitpre = consinitpre;
2086  (*conshdlr)->consexitpre = consexitpre;
2087  (*conshdlr)->consinitsol = consinitsol;
2088  (*conshdlr)->consexitsol = consexitsol;
2089  (*conshdlr)->consdelete = consdelete;
2090  (*conshdlr)->constrans = constrans;
2091  (*conshdlr)->consinitlp = consinitlp;
2092  (*conshdlr)->conssepalp = conssepalp;
2093  (*conshdlr)->conssepasol = conssepasol;
2094  (*conshdlr)->consenfolp = consenfolp;
2095  (*conshdlr)->consenforelax = consenforelax;
2096  (*conshdlr)->consenfops = consenfops;
2097  (*conshdlr)->conscheck = conscheck;
2098  (*conshdlr)->consprop = consprop;
2099  (*conshdlr)->conspresol = conspresol;
2100  (*conshdlr)->consresprop = consresprop;
2101  (*conshdlr)->conslock = conslock;
2102  (*conshdlr)->consactive = consactive;
2103  (*conshdlr)->consdeactive = consdeactive;
2104  (*conshdlr)->consenable = consenable;
2105  (*conshdlr)->consdisable = consdisable;
2106  (*conshdlr)->consprint = consprint;
2107  (*conshdlr)->consdelvars = consdelvars;
2108  (*conshdlr)->conscopy = conscopy;
2109  (*conshdlr)->consparse = consparse;
2110  (*conshdlr)->consgetvars = consgetvars;
2111  (*conshdlr)->consgetnvars = consgetnvars;
2112  (*conshdlr)->conshdlrdata = conshdlrdata;
2113  (*conshdlr)->consgetdivebdchgs = consgetdivebdchgs;
2114  (*conshdlr)->conss = NULL;
2115  (*conshdlr)->consssize = 0;
2116  (*conshdlr)->nconss = 0;
2117  (*conshdlr)->nactiveconss = 0;
2118  (*conshdlr)->maxnactiveconss = 0;
2119  (*conshdlr)->startnactiveconss = 0;
2120  (*conshdlr)->initconss = NULL;
2121  (*conshdlr)->initconsssize = 0;
2122  (*conshdlr)->ninitconss = 0;
2123  (*conshdlr)->ninitconsskept = 0;
2124  (*conshdlr)->sepaconss = NULL;
2125  (*conshdlr)->sepaconsssize = 0;
2126  (*conshdlr)->nsepaconss = 0;
2127  (*conshdlr)->nusefulsepaconss = 0;
2128  (*conshdlr)->enfoconss = NULL;
2129  (*conshdlr)->enfoconsssize = 0;
2130  (*conshdlr)->nenfoconss = 0;
2131  (*conshdlr)->nusefulenfoconss = 0;
2132  (*conshdlr)->checkconss = NULL;
2133  (*conshdlr)->checkconsssize = 0;
2134  (*conshdlr)->ncheckconss = 0;
2135  (*conshdlr)->nusefulcheckconss = 0;
2136  (*conshdlr)->propconss = NULL;
2137  (*conshdlr)->propconsssize = 0;
2138  (*conshdlr)->npropconss = 0;
2139  (*conshdlr)->nusefulpropconss = 0;
2140  (*conshdlr)->nmarkedpropconss = 0;
2141  (*conshdlr)->updateconss = NULL;
2142  (*conshdlr)->updateconsssize = 0;
2143  (*conshdlr)->nupdateconss = 0;
2144  (*conshdlr)->nenabledconss = 0;
2145  (*conshdlr)->lastnusefulpropconss = 0;
2146  (*conshdlr)->lastnusefulsepaconss = 0;
2147  (*conshdlr)->lastnusefulenfoconss = 0;
2148 
2149  (*conshdlr)->storedpropconss = NULL;
2150  (*conshdlr)->storedpropconsssize = 0;
2151  (*conshdlr)->storednmarkedpropconss = 0;
2152  (*conshdlr)->storedpropdomchgcount = 0;
2153 
2154  SCIP_CALL( SCIPclockCreate(&(*conshdlr)->setuptime, SCIP_CLOCKTYPE_DEFAULT) );
2155  SCIP_CALL( SCIPclockCreate(&(*conshdlr)->presoltime, SCIP_CLOCKTYPE_DEFAULT) );
2156  SCIP_CALL( SCIPclockCreate(&(*conshdlr)->sepatime, SCIP_CLOCKTYPE_DEFAULT) );
2157  SCIP_CALL( SCIPclockCreate(&(*conshdlr)->enfolptime, SCIP_CLOCKTYPE_DEFAULT) );
2158  SCIP_CALL( SCIPclockCreate(&(*conshdlr)->enfopstime, SCIP_CLOCKTYPE_DEFAULT) );
2159  SCIP_CALL( SCIPclockCreate(&(*conshdlr)->enforelaxtime, SCIP_CLOCKTYPE_DEFAULT) );
2160  SCIP_CALL( SCIPclockCreate(&(*conshdlr)->proptime, SCIP_CLOCKTYPE_DEFAULT) );
2161  SCIP_CALL( SCIPclockCreate(&(*conshdlr)->sbproptime, SCIP_CLOCKTYPE_DEFAULT) );
2162  SCIP_CALL( SCIPclockCreate(&(*conshdlr)->checktime, SCIP_CLOCKTYPE_DEFAULT) );
2163  SCIP_CALL( SCIPclockCreate(&(*conshdlr)->resproptime, SCIP_CLOCKTYPE_DEFAULT) );
2164 
2165  (*conshdlr)->nsepacalls = 0;
2166  (*conshdlr)->nenfolpcalls = 0;
2167  (*conshdlr)->nenfopscalls = 0;
2168  (*conshdlr)->nenforelaxcalls = 0;
2169  (*conshdlr)->npropcalls = 0;
2170  (*conshdlr)->ncheckcalls = 0;
2171  (*conshdlr)->nrespropcalls = 0;
2172  (*conshdlr)->ncutoffs = 0;
2173  (*conshdlr)->ncutsfound = 0;
2174  (*conshdlr)->ncutsapplied = 0;
2175  (*conshdlr)->nconssfound = 0;
2176  (*conshdlr)->ndomredsfound = 0;
2177  (*conshdlr)->nchildren = 0;
2178  (*conshdlr)->lastpropdomchgcount = -1;
2179  (*conshdlr)->lastsepalpcount = -1;
2180  (*conshdlr)->lastenfolplpcount = -1;
2181  (*conshdlr)->lastenfolpdomchgcount = -1;
2182  (*conshdlr)->lastenfopsdomchgcount = -1;
2183  (*conshdlr)->lastenforelaxdomchgcount = -1;
2184  (*conshdlr)->lastenforelaxrelaxcount = -1;
2185  (*conshdlr)->lastenfolpnode = -1;
2186  (*conshdlr)->lastenfopsnode = -1;
2187  (*conshdlr)->lastenfolpresult = SCIP_DIDNOTRUN;
2188  (*conshdlr)->lastenfopsresult = SCIP_DIDNOTRUN;
2189  (*conshdlr)->lastenforelaxresult = SCIP_DIDNOTRUN;
2190  (*conshdlr)->lastnfixedvars = 0;
2191  (*conshdlr)->lastnaggrvars = 0;
2192  (*conshdlr)->lastnchgvartypes = 0;
2193  (*conshdlr)->lastnchgbds = 0;
2194  (*conshdlr)->lastnaddholes = 0;
2195  (*conshdlr)->lastndelconss = 0;
2196  (*conshdlr)->lastnaddconss = 0;
2197  (*conshdlr)->lastnupgdconss = 0;
2198  (*conshdlr)->lastnchgcoefs = 0;
2199  (*conshdlr)->lastnchgsides = 0;
2200  (*conshdlr)->nfixedvars = 0;
2201  (*conshdlr)->naggrvars = 0;
2202  (*conshdlr)->nchgvartypes = 0;
2203  (*conshdlr)->nchgbds = 0;
2204  (*conshdlr)->naddholes = 0;
2205  (*conshdlr)->ndelconss = 0;
2206  (*conshdlr)->naddconss = 0;
2207  (*conshdlr)->nupgdconss = 0;
2208  (*conshdlr)->nchgcoefs = 0;
2209  (*conshdlr)->nchgsides = 0;
2210  (*conshdlr)->npresolcalls = 0;
2211  (*conshdlr)->delayupdatecount = 0;
2212  (*conshdlr)->ageresetavg = AGERESETAVG_INIT;
2213  (*conshdlr)->needscons = needscons;
2214  (*conshdlr)->sepalpwasdelayed = FALSE;
2215  (*conshdlr)->sepasolwasdelayed = FALSE;
2216  (*conshdlr)->propwasdelayed = FALSE;
2217  (*conshdlr)->duringsepa = FALSE;
2218  (*conshdlr)->duringprop = FALSE;
2219  (*conshdlr)->initialized = FALSE;
2220 
2221  /* add parameters */
2222  (void) SCIPsnprintf(paramname, SCIP_MAXSTRLEN, "constraints/%s/sepafreq", name);
2223  SCIP_CALL( SCIPsetAddIntParam(set, messagehdlr, blkmem, paramname,
2224  "frequency for separating cuts (-1: never, 0: only in root node)",
2225  &(*conshdlr)->sepafreq, FALSE, sepafreq, -1, SCIP_MAXTREEDEPTH, NULL, NULL) );
2226 
2227  (void) SCIPsnprintf(paramname, SCIP_MAXSTRLEN, "constraints/%s/propfreq", name);
2228  SCIP_CALL( SCIPsetAddIntParam(set, messagehdlr, blkmem, paramname,
2229  "frequency for propagating domains (-1: never, 0: only in root node)",
2230  &(*conshdlr)->propfreq, FALSE, propfreq, -1, SCIP_MAXTREEDEPTH, NULL, NULL) );
2231 
2232  (void) SCIPsnprintf(paramname, SCIP_MAXSTRLEN, "constraints/%s/proptiming", name);
2233  (void) SCIPsnprintf(paramdesc, SCIP_MAXSTRLEN, "timing when constraint propagation should be called (%u:BEFORELP, %u:DURINGLPLOOP, %u:AFTERLPLOOP, %u:ALWAYS)", SCIP_PROPTIMING_BEFORELP, SCIP_PROPTIMING_DURINGLPLOOP, SCIP_PROPTIMING_AFTERLPLOOP, SCIP_PROPTIMING_ALWAYS);
2234  SCIP_CALL( SCIPsetAddIntParam(set, messagehdlr, blkmem, paramname, paramdesc,
2235  (int*)(&(*conshdlr)->proptiming), TRUE, (int) proptiming, (int) SCIP_PROPTIMING_BEFORELP, (int) SCIP_PROPTIMING_ALWAYS, NULL, NULL) ); /*lint !e713*/
2236 
2237  (void) SCIPsnprintf(paramname, SCIP_MAXSTRLEN, "constraints/%s/eagerfreq", name);
2238  SCIP_CALL( SCIPsetAddIntParam(set, messagehdlr, blkmem, paramname,
2239  "frequency for using all instead of only the useful constraints in separation, propagation and enforcement (-1: never, 0: only in first evaluation)",
2240  &(*conshdlr)->eagerfreq, TRUE, eagerfreq, -1, SCIP_MAXTREEDEPTH, NULL, NULL) );
2241 
2242  (void) SCIPsnprintf(paramname, SCIP_MAXSTRLEN, "constraints/%s/maxprerounds", name);
2243  SCIP_CALL( SCIPsetAddIntParam(set, messagehdlr, blkmem, paramname,
2244  "maximal number of presolving rounds the constraint handler participates in (-1: no limit)",
2245  &(*conshdlr)->maxprerounds, TRUE, maxprerounds, -1, INT_MAX, NULL, NULL) );
2246 
2247  (void) SCIPsnprintf(paramname, SCIP_MAXSTRLEN, "constraints/%s/delaysepa", name);
2248  SCIP_CALL( SCIPsetAddBoolParam(set, messagehdlr, blkmem, paramname,
2249  "should separation method be delayed, if other separators found cuts?",
2250  &(*conshdlr)->delaysepa, TRUE, delaysepa, NULL, NULL) ); /*lint !e740*/
2251 
2252  (void) SCIPsnprintf(paramname, SCIP_MAXSTRLEN, "constraints/%s/delayprop", name);
2253  SCIP_CALL( SCIPsetAddBoolParam(set, messagehdlr, blkmem, paramname,
2254  "should propagation method be delayed, if other propagators found reductions?",
2255  &(*conshdlr)->delayprop, TRUE, delayprop, NULL, NULL) ); /*lint !e740*/
2256 
2257  (void) SCIPsnprintf(paramname, SCIP_MAXSTRLEN, "constraints/%s/presoltiming", name);
2258  (void) SCIPsnprintf(paramdesc, SCIP_MAXSTRLEN, "timing mask of the constraint handler's presolving method (%u:FAST, %u:MEDIUM, %u:EXHAUSTIVE, %u:FINAL)",
2260  SCIP_CALL( SCIPsetAddIntParam(set, messagehdlr, blkmem, paramname, paramdesc,
2261  (int*)&(*conshdlr)->presoltiming, TRUE, (int) presoltiming, (int) SCIP_PRESOLTIMING_FAST, (int) SCIP_PRESOLTIMING_MAX, NULL, NULL) ); /*lint !e740 !e713*/
2262 
2263  return SCIP_OKAY;
2264 }
2265 
2266 /** creates a constraint handler */
2268  SCIP_CONSHDLR** conshdlr, /**< pointer to constraint handler data structure */
2269  SCIP_SET* set, /**< global SCIP settings */
2270  SCIP_MESSAGEHDLR* messagehdlr, /**< message handler */
2271  BMS_BLKMEM* blkmem, /**< block memory for parameter settings */
2272  const char* name, /**< name of constraint handler */
2273  const char* desc, /**< description of constraint handler */
2274  int sepapriority, /**< priority of the constraint handler for separation */
2275  int enfopriority, /**< priority of the constraint handler for constraint enforcing */
2276  int checkpriority, /**< priority of the constraint handler for checking feasibility (and propagation) */
2277  int sepafreq, /**< frequency for separating cuts; zero means to separate only in the root node */
2278  int propfreq, /**< frequency for propagating domains; zero means only preprocessing propagation */
2279  int eagerfreq, /**< frequency for using all instead of only the useful constraints in separation,
2280  * propagation and enforcement, -1 for no eager evaluations, 0 for first only */
2281  int maxprerounds, /**< maximal number of presolving rounds the constraint handler participates in (-1: no limit) */
2282  SCIP_Bool delaysepa, /**< should separation method be delayed, if other separators found cuts? */
2283  SCIP_Bool delayprop, /**< should propagation method be delayed, if other propagators found reductions? */
2284  SCIP_Bool needscons, /**< should the constraint handler be skipped, if no constraints are available? */
2285  SCIP_PROPTIMING proptiming, /**< positions in the node solving loop where propagation method of constraint handlers should be executed */
2286  SCIP_PRESOLTIMING presoltiming, /**< timing mask of the constraint handler's presolving method */
2287  SCIP_DECL_CONSHDLRCOPY((*conshdlrcopy)), /**< copy method of constraint handler or NULL if you don't want to copy your plugin into sub-SCIPs */
2288  SCIP_DECL_CONSFREE ((*consfree)), /**< destructor of constraint handler */
2289  SCIP_DECL_CONSINIT ((*consinit)), /**< initialize constraint handler */
2290  SCIP_DECL_CONSEXIT ((*consexit)), /**< deinitialize constraint handler */
2291  SCIP_DECL_CONSINITPRE ((*consinitpre)), /**< presolving initialization method of constraint handler */
2292  SCIP_DECL_CONSEXITPRE ((*consexitpre)), /**< presolving deinitialization method of constraint handler */
2293  SCIP_DECL_CONSINITSOL ((*consinitsol)), /**< solving process initialization method of constraint handler */
2294  SCIP_DECL_CONSEXITSOL ((*consexitsol)), /**< solving process deinitialization method of constraint handler */
2295  SCIP_DECL_CONSDELETE ((*consdelete)), /**< free specific constraint data */
2296  SCIP_DECL_CONSTRANS ((*constrans)), /**< transform constraint data into data belonging to the transformed problem */
2297  SCIP_DECL_CONSINITLP ((*consinitlp)), /**< initialize LP with relaxations of "initial" constraints */
2298  SCIP_DECL_CONSSEPALP ((*conssepalp)), /**< separate cutting planes for LP solution */
2299  SCIP_DECL_CONSSEPASOL ((*conssepasol)), /**< separate cutting planes for arbitrary primal solution */
2300  SCIP_DECL_CONSENFOLP ((*consenfolp)), /**< enforcing constraints for LP solutions */
2301  SCIP_DECL_CONSENFORELAX ((*consenforelax)), /**< enforcing constraints for relaxation solutions */
2302  SCIP_DECL_CONSENFOPS ((*consenfops)), /**< enforcing constraints for pseudo solutions */
2303  SCIP_DECL_CONSCHECK ((*conscheck)), /**< check feasibility of primal solution */
2304  SCIP_DECL_CONSPROP ((*consprop)), /**< propagate variable domains */
2305  SCIP_DECL_CONSPRESOL ((*conspresol)), /**< presolving method */
2306  SCIP_DECL_CONSRESPROP ((*consresprop)), /**< propagation conflict resolving method */
2307  SCIP_DECL_CONSLOCK ((*conslock)), /**< variable rounding lock method */
2308  SCIP_DECL_CONSACTIVE ((*consactive)), /**< activation notification method */
2309  SCIP_DECL_CONSDEACTIVE((*consdeactive)), /**< deactivation notification method */
2310  SCIP_DECL_CONSENABLE ((*consenable)), /**< enabling notification method */
2311  SCIP_DECL_CONSDISABLE ((*consdisable)), /**< disabling notification method */
2312  SCIP_DECL_CONSDELVARS ((*consdelvars)), /**< variable deletion method */
2313  SCIP_DECL_CONSPRINT ((*consprint)), /**< constraint display method */
2314  SCIP_DECL_CONSCOPY ((*conscopy)), /**< constraint copying method */
2315  SCIP_DECL_CONSPARSE ((*consparse)), /**< constraint parsing method */
2316  SCIP_DECL_CONSGETVARS ((*consgetvars)), /**< constraint get variables method */
2317  SCIP_DECL_CONSGETNVARS((*consgetnvars)), /**< constraint get number of variable method */
2318  SCIP_DECL_CONSGETDIVEBDCHGS((*consgetdivebdchgs)), /**< constraint handler diving solution enforcement method */
2319  SCIP_CONSHDLRDATA* conshdlrdata /**< constraint handler data */
2320  )
2321 {
2322  assert(conshdlr != NULL);
2323  assert(name != NULL);
2324  assert(desc != NULL);
2325  assert(conssepalp != NULL || conssepasol != NULL || sepafreq == -1);
2326  assert(consprop != NULL || propfreq == -1);
2327  assert(eagerfreq >= -1);
2328  assert(!needscons || ((conshdlrcopy == NULL) == (conscopy == NULL)));
2329 
2330  SCIP_CALL_FINALLY( doConshdlrCreate(conshdlr, set, messagehdlr, blkmem, name, desc, sepapriority, enfopriority,
2331  checkpriority, sepafreq, propfreq, eagerfreq, maxprerounds, delaysepa, delayprop, needscons, proptiming,
2332  presoltiming, conshdlrcopy, consfree, consinit, consexit, consinitpre, consexitpre, consinitsol, consexitsol,
2333  consdelete, constrans, consinitlp, conssepalp, conssepasol, consenfolp, consenforelax, consenfops, conscheck,
2334  consprop, conspresol, consresprop, conslock, consactive, consdeactive, consenable, consdisable, consdelvars,
2335  consprint, conscopy, consparse, consgetvars, consgetnvars, consgetdivebdchgs, conshdlrdata),
2336  (void) SCIPconshdlrFree(conshdlr, set) );
2337 
2338  return SCIP_OKAY;
2339 } /*lint !e715*/
2340 
2341 /** calls destructor and frees memory of constraint handler */
2343  SCIP_CONSHDLR** conshdlr, /**< pointer to constraint handler data structure */
2344  SCIP_SET* set /**< global SCIP settings */
2345  )
2346 {
2347  assert(conshdlr != NULL);
2348  if( *conshdlr == NULL )
2349  return SCIP_OKAY;
2350  assert(!(*conshdlr)->initialized);
2351  assert((*conshdlr)->nconss == 0);
2352  assert(set != NULL);
2353 
2354  /* call destructor of constraint handler */
2355  if( (*conshdlr)->consfree != NULL )
2356  {
2357  SCIP_CALL( (*conshdlr)->consfree(set->scip, *conshdlr) );
2358  }
2359 
2360  SCIPclockFree(&(*conshdlr)->resproptime);
2361  SCIPclockFree(&(*conshdlr)->checktime);
2362  SCIPclockFree(&(*conshdlr)->sbproptime);
2363  SCIPclockFree(&(*conshdlr)->proptime);
2364  SCIPclockFree(&(*conshdlr)->enforelaxtime);
2365  SCIPclockFree(&(*conshdlr)->enfopstime);
2366  SCIPclockFree(&(*conshdlr)->enfolptime);
2367  SCIPclockFree(&(*conshdlr)->sepatime);
2368  SCIPclockFree(&(*conshdlr)->presoltime);
2369  SCIPclockFree(&(*conshdlr)->setuptime);
2370 
2371  BMSfreeMemoryArrayNull(&(*conshdlr)->name);
2372  BMSfreeMemoryArrayNull(&(*conshdlr)->desc);
2373  BMSfreeMemoryArrayNull(&(*conshdlr)->conss);
2374  BMSfreeMemoryArrayNull(&(*conshdlr)->initconss);
2375  BMSfreeMemoryArrayNull(&(*conshdlr)->sepaconss);
2376  BMSfreeMemoryArrayNull(&(*conshdlr)->enfoconss);
2377  BMSfreeMemoryArrayNull(&(*conshdlr)->checkconss);
2378  BMSfreeMemoryArrayNull(&(*conshdlr)->propconss);
2379  BMSfreeMemoryArrayNull(&(*conshdlr)->updateconss);
2380  BMSfreeMemoryArrayNull(&(*conshdlr)->storedpropconss);
2381  BMSfreeMemory(conshdlr);
2382 
2383  return SCIP_OKAY;
2384 }
2385 
2386 /** calls initialization method of constraint handler */
2388  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
2389  BMS_BLKMEM* blkmem, /**< block memory */
2390  SCIP_SET* set, /**< global SCIP settings */
2391  SCIP_STAT* stat /**< dynamic problem statistics */
2392  )
2393 {
2394  assert(conshdlr != NULL);
2395  assert(set != NULL);
2396 
2397  if( conshdlr->initialized )
2398  {
2399  SCIPerrorMessage("constraint handler <%s> already initialized\n", conshdlr->name);
2400  return SCIP_INVALIDCALL;
2401  }
2402 
2403  if( set->misc_resetstat )
2404  {
2405  SCIPclockReset(conshdlr->setuptime);
2406  SCIPclockReset(conshdlr->presoltime);
2407  SCIPclockReset(conshdlr->sepatime);
2408  SCIPclockReset(conshdlr->enfolptime);
2409  SCIPclockReset(conshdlr->enfopstime);
2410  SCIPclockReset(conshdlr->enforelaxtime);
2411  SCIPclockReset(conshdlr->proptime);
2412  SCIPclockReset(conshdlr->sbproptime);
2413  SCIPclockReset(conshdlr->checktime);
2414  SCIPclockReset(conshdlr->resproptime);
2415 
2416  conshdlr->nsepacalls = 0;
2417  conshdlr->nenfolpcalls = 0;
2418  conshdlr->nenfopscalls = 0;
2419  conshdlr->nenforelaxcalls = 0;
2420  conshdlr->npropcalls = 0;
2421  conshdlr->ncheckcalls = 0;
2422  conshdlr->nrespropcalls = 0;
2423  conshdlr->ncutoffs = 0;
2424  conshdlr->ncutsfound = 0;
2425  conshdlr->ncutsapplied = 0;
2426  conshdlr->nconssfound = 0;
2427  conshdlr->ndomredsfound = 0;
2428  conshdlr->nchildren = 0;
2429  conshdlr->lastpropdomchgcount = -1;
2430  conshdlr->lastenfolpdomchgcount = -1;
2431  conshdlr->lastenfopsdomchgcount = -1;
2432  conshdlr->lastenforelaxdomchgcount = -1;
2433  conshdlr->lastenforelaxrelaxcount = -1;
2434  conshdlr->lastenfolpnode = -1;
2435  conshdlr->lastenfopsnode = -1;
2436  conshdlr->lastenfolpresult = SCIP_DIDNOTRUN;
2437  conshdlr->lastenfopsresult = SCIP_DIDNOTRUN;
2438  conshdlr->maxnactiveconss = conshdlr->nactiveconss;
2439  conshdlr->startnactiveconss = 0;
2440  conshdlr->lastsepalpcount = -1;
2441  conshdlr->lastenfolplpcount = -1;
2442  conshdlr->lastnusefulpropconss = 0;
2443  conshdlr->lastnusefulsepaconss = 0;
2444  conshdlr->lastnusefulenfoconss = 0;
2445  conshdlr->lastnfixedvars = 0;
2446  conshdlr->lastnaggrvars = 0;
2447  conshdlr->lastnchgvartypes = 0;
2448  conshdlr->lastnchgbds = 0;
2449  conshdlr->lastnaddholes = 0;
2450  conshdlr->lastndelconss = 0;
2451  conshdlr->lastnaddconss = 0;
2452  conshdlr->lastnupgdconss = 0;
2453  conshdlr->lastnchgcoefs = 0;
2454  conshdlr->lastnchgsides = 0;
2455  conshdlr->nfixedvars = 0;
2456  conshdlr->naggrvars = 0;
2457  conshdlr->nchgvartypes = 0;
2458  conshdlr->nchgbds = 0;
2459  conshdlr->naddholes = 0;
2460  conshdlr->ndelconss = 0;
2461  conshdlr->naddconss = 0;
2462  conshdlr->nupgdconss = 0;
2463  conshdlr->nchgcoefs = 0;
2464  conshdlr->nchgsides = 0;
2465  conshdlr->npresolcalls = 0;
2466  conshdlr->ageresetavg = AGERESETAVG_INIT;
2467  conshdlr->sepalpwasdelayed = FALSE;
2468  conshdlr->sepasolwasdelayed = FALSE;
2469  conshdlr->propwasdelayed = FALSE;
2470  }
2471 
2472  /* call initialization method of constraint handler */
2473  if( conshdlr->consinit != NULL )
2474  {
2475  /* because during constraint processing, constraints of this handler may be deleted, activated, deactivated,
2476  * enabled, disabled, marked obsolete or useful, which would change the conss array given to the
2477  * external method; to avoid this, these changes will be buffered and processed after the method call
2478  */
2479  conshdlrDelayUpdates(conshdlr);
2480 
2481  /* start timing */
2482  SCIPclockStart(conshdlr->setuptime, set);
2483 
2484  /* call external method */
2485  SCIP_CALL( conshdlr->consinit(set->scip, conshdlr, conshdlr->conss, conshdlr->nconss) );
2486 
2487  /* stop timing */
2488  SCIPclockStop(conshdlr->setuptime, set);
2489 
2490  /* perform the cached constraint updates */
2491  SCIP_CALL( conshdlrForceUpdates(conshdlr, blkmem, set, stat) );
2492  }
2493  conshdlr->initialized = TRUE;
2494  assert(!conshdlrAreUpdatesDelayed(conshdlr));
2495 
2496  return SCIP_OKAY;
2497 }
2498 
2499 /** calls exit method of constraint handler */
2501  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
2502  BMS_BLKMEM* blkmem, /**< block memory */
2503  SCIP_SET* set, /**< global SCIP settings */
2504  SCIP_STAT* stat /**< dynamic problem statistics */
2505  )
2506 {
2507  assert(conshdlr != NULL);
2508  assert(set != NULL);
2509 
2510  if( !conshdlr->initialized )
2511  {
2512  SCIPerrorMessage("constraint handler <%s> not initialized\n", conshdlr->name);
2513  return SCIP_INVALIDCALL;
2514  }
2515 
2516  /* call deinitialization method of constraint handler */
2517  if( conshdlr->consexit != NULL )
2518  {
2519  /* because during constraint processing, constraints of this handler may be deleted, activated, deactivated,
2520  * enabled, disabled, marked obsolete or useful, which would change the conss array given to the
2521  * external method; to avoid this, these changes will be buffered and processed after the method call
2522  */
2523  conshdlrDelayUpdates(conshdlr);
2524 
2525  /* start timing */
2526  SCIPclockStart(conshdlr->setuptime, set);
2527 
2528  /* call external method */
2529  SCIP_CALL( conshdlr->consexit(set->scip, conshdlr, conshdlr->conss, conshdlr->nconss) );
2530 
2531  /* stop timing */
2532  SCIPclockStop(conshdlr->setuptime, set);
2533 
2534  /* perform the cached constraint updates */
2535  SCIP_CALL( conshdlrForceUpdates(conshdlr, blkmem, set, stat) );
2536  }
2537  conshdlr->initialized = FALSE;
2538 
2539  return SCIP_OKAY;
2540 }
2541 
2542 /** informs constraint handler that the presolving process is being started */
2544  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
2545  BMS_BLKMEM* blkmem, /**< block memory */
2546  SCIP_SET* set, /**< global SCIP settings */
2547  SCIP_STAT* stat /**< dynamic problem statistics */
2548  )
2549 {
2550  assert(conshdlr != NULL);
2551  assert(set != NULL);
2552 
2553  /* reset conshdlr last presolved data in case of a restart */
2554  conshdlr->lastpropdomchgcount = -1;
2555  conshdlr->lastenfolpdomchgcount = -1;
2556  conshdlr->lastenfopsdomchgcount = -1;
2557  conshdlr->lastenforelaxdomchgcount = -1;
2558  conshdlr->lastenforelaxrelaxcount = -1;
2559  conshdlr->lastenfolpnode = -1;
2560  conshdlr->lastenfopsnode = -1;
2561  conshdlr->lastenfolpresult = SCIP_DIDNOTRUN;
2562  conshdlr->lastenfopsresult = SCIP_DIDNOTRUN;
2563  conshdlr->lastenforelaxresult = SCIP_DIDNOTRUN;
2564  conshdlr->maxnactiveconss = conshdlr->nactiveconss;
2565  conshdlr->startnactiveconss = 0;
2566  conshdlr->lastsepalpcount = -1;
2567  conshdlr->lastenfolplpcount = -1;
2568  conshdlr->lastnusefulpropconss = 0;
2569  conshdlr->lastnusefulsepaconss = 0;
2570  conshdlr->lastnusefulenfoconss = 0;
2571  conshdlr->lastnfixedvars = 0;
2572  conshdlr->lastnaggrvars = 0;
2573  conshdlr->lastnchgvartypes = 0;
2574  conshdlr->lastnchgbds = 0;
2575  conshdlr->lastnaddholes = 0;
2576  conshdlr->lastndelconss = 0;
2577  conshdlr->lastnaddconss = 0;
2578  conshdlr->lastnupgdconss = 0;
2579  conshdlr->lastnchgcoefs = 0;
2580  conshdlr->lastnchgsides = 0;
2581  conshdlr->propwasdelayed = FALSE;
2582 
2583  /* call presolving initialization method of constraint handler */
2584  if( conshdlr->consinitpre != NULL )
2585  {
2586  /* because during constraint processing, constraints of this handler may be deleted, activated, deactivated,
2587  * enabled, disabled, marked obsolete or useful, which would change the conss array given to the
2588  * external method; to avoid this, these changes will be buffered and processed after the method call
2589  */
2590  conshdlrDelayUpdates(conshdlr);
2591 
2592  /* start timing */
2593  SCIPclockStart(conshdlr->setuptime, set);
2594 
2595  /* call external method */
2596  SCIP_CALL( conshdlr->consinitpre(set->scip, conshdlr, conshdlr->conss, conshdlr->nconss) );
2597 
2598  /* stop timing */
2599  SCIPclockStop(conshdlr->setuptime, set);
2600 
2601  /* perform the cached constraint updates */
2602  SCIP_CALL( conshdlrForceUpdates(conshdlr, blkmem, set, stat) );
2603  }
2604 
2605  /* after a restart the LP is empty but the initial constraints are not included in the initialconss array anymore;
2606  * we have to put them back into this array in order to obtain the correct initial root relaxation
2607  */
2608  if( stat->nruns >= 2 )
2609  {
2610  int c;
2611 
2612  for( c = 0; c < conshdlr->nconss; ++c )
2613  {
2614  /**@todo should only active constraints be added to the initconss array? at least cons->active is asserted in
2615  * conshdlrAddInitcons(conshdlr, set, conshdlr->conss[c])
2616  */
2617  if( conshdlr->conss[c]->addarraypos >= 0 && !conshdlr->conss[c]->deleted &&
2618  conshdlr->conss[c]->initial && conshdlr->conss[c]->initconsspos == -1 )
2619  {
2620  SCIP_CALL( conshdlrAddInitcons(conshdlr, set, stat, conshdlr->conss[c]) );
2621  }
2622  }
2623  }
2624 
2625  return SCIP_OKAY;
2626 }
2627 
2628 /** informs constraint handler that the presolving is finished */
2630  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
2631  BMS_BLKMEM* blkmem, /**< block memory */
2632  SCIP_SET* set, /**< global SCIP settings */
2633  SCIP_STAT* stat /**< dynamic problem statistics */
2634  )
2635 {
2636  assert(conshdlr != NULL);
2637  assert(set != NULL);
2638 
2639  /* call presolving deinitialization method of constraint handler */
2640  if( conshdlr->consexitpre != NULL )
2641  {
2642  /* because during constraint processing, constraints of this handler may be deleted, activated, deactivated,
2643  * enabled, disabled, marked obsolete or useful, which would change the conss array given to the
2644  * external method; to avoid this, these changes will be buffered and processed after the method call
2645  */
2646  conshdlrDelayUpdates(conshdlr);
2647 
2648  /* start timing */
2649  SCIPclockStart(conshdlr->setuptime, set);
2650 
2651  /* call external method */
2652  SCIP_CALL( conshdlr->consexitpre(set->scip, conshdlr, conshdlr->conss, conshdlr->nconss) );
2653 
2654  /* stop timing */
2655  SCIPclockStop(conshdlr->setuptime, set);
2656 
2657  /* perform the cached constraint updates */
2658  SCIP_CALL( conshdlrForceUpdates(conshdlr, blkmem, set, stat) );
2659  }
2660 
2661  /* update statistics */
2662  conshdlr->maxnactiveconss = conshdlr->nactiveconss;
2663  conshdlr->startnactiveconss = conshdlr->nactiveconss;
2664 
2665  return SCIP_OKAY;
2666 }
2667 
2668 /** informs constraint handler that the branch and bound process is being started */
2670  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
2671  BMS_BLKMEM* blkmem, /**< block memory */
2672  SCIP_SET* set, /**< global SCIP settings */
2673  SCIP_STAT* stat /**< dynamic problem statistics */
2674  )
2675 {
2676  assert(conshdlr != NULL);
2677  assert(set != NULL);
2678  assert(stat != NULL);
2679 
2680  conshdlr->sepalpwasdelayed = FALSE;
2681  conshdlr->sepasolwasdelayed = FALSE;
2682 
2683  /* call solving process initialization method of constraint handler */
2684  if( conshdlr->consinitsol != NULL )
2685  {
2686  /* because during constraint processing, constraints of this handler may be deleted, activated, deactivated,
2687  * enabled, disabled, marked obsolete or useful, which would change the conss array given to the
2688  * external method; to avoid this, these changes will be buffered and processed after the method call
2689  */
2690  conshdlrDelayUpdates(conshdlr);
2691 
2692  /* start timing */
2693  SCIPclockStart(conshdlr->setuptime, set);
2694 
2695  /* call external method */
2696  SCIP_CALL( conshdlr->consinitsol(set->scip, conshdlr, conshdlr->conss, conshdlr->nconss) );
2697 
2698  /* stop timing */
2699  SCIPclockStop(conshdlr->setuptime, set);
2700 
2701  /* perform the cached constraint updates */
2702  SCIP_CALL( conshdlrForceUpdates(conshdlr, blkmem, set, stat) );
2703  }
2704 
2705  return SCIP_OKAY;
2706 }
2707 
2708 /** informs constraint handler that the branch and bound process data is being freed */
2710  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
2711  BMS_BLKMEM* blkmem, /**< block memory */
2712  SCIP_SET* set, /**< global SCIP settings */
2713  SCIP_STAT* stat, /**< dynamic problem statistics */
2714  SCIP_Bool restart /**< was this exit solve call triggered by a restart? */
2715  )
2716 {
2717  assert(conshdlr != NULL);
2718  assert(set != NULL);
2719 
2720  /* call solving process deinitialization method of constraint handler */
2721  if( conshdlr->consexitsol != NULL )
2722  {
2723  /* because during constraint processing, constraints of this handler may be deleted, activated, deactivated,
2724  * enabled, disabled, marked obsolete or useful, which would change the conss array given to the
2725  * external method; to avoid this, these changes will be buffered and processed after the method call
2726  */
2727  conshdlrDelayUpdates(conshdlr);
2728 
2729  /* start timing */
2730  SCIPclockStart(conshdlr->setuptime, set);
2731 
2732  /* call external method */
2733  SCIP_CALL( conshdlr->consexitsol(set->scip, conshdlr, conshdlr->conss, conshdlr->nconss, restart) );
2734 
2735  /* stop timing */
2736  SCIPclockStop(conshdlr->setuptime, set);
2737 
2738  /* perform the cached constraint updates */
2739  SCIP_CALL( conshdlrForceUpdates(conshdlr, blkmem, set, stat) );
2740  }
2741 
2742  return SCIP_OKAY;
2743 }
2744 
2745 /** calls LP initialization method of constraint handler to separate all initial active constraints */
2747  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
2748  BMS_BLKMEM* blkmem, /**< block memory */
2749  SCIP_SET* set, /**< global SCIP settings */
2750  SCIP_STAT* stat, /**< dynamic problem statistics */
2751  SCIP_TREE* tree, /**< branch and bound tree */
2752  SCIP_Bool initkeptconss, /**< Also initialize constraints which are valid at a more global node,
2753  * but were not activated there? Should be FALSE for repeated calls at
2754  * one node or if the current focusnode is a child of the former one */
2755  SCIP_Bool* cutoff /**< pointer to store whether infeasibility was detected while building the LP */
2756  )
2757 {
2758  assert(conshdlr != NULL);
2759  assert(cutoff != NULL);
2760 #ifdef MORE_DEBUG
2761  assert(stat->nnodes > 1 || conshdlr->ninitconsskept == 0 || SCIPtreeProbing(tree));
2762 #endif
2763 
2764  *cutoff = FALSE;
2765 
2766  if( conshdlr->consinitlp != NULL )
2767  {
2768  int currentdepth;
2769  int oldninitconss;
2770  int c;
2771 
2772  SCIPsetDebugMsg(set, "initializing LP with %d initial constraints of handler <%s> (ninitconss=%d, kept=%d, initkept=%u)\n",
2773  initkeptconss ? conshdlr->ninitconss : conshdlr->ninitconss - conshdlr->ninitconsskept, conshdlr->name,
2774  conshdlr->ninitconss, conshdlr->ninitconsskept, initkeptconss);
2775 
2776  /* no constraints to initialize (or only kept constraints which do not need to be initialized this time) -> return */
2777  if( conshdlr->needscons && (conshdlr->ninitconss == 0 || (!initkeptconss && conshdlr->ninitconss == conshdlr->ninitconsskept)) )
2778  return SCIP_OKAY;
2779 
2780  /* because during constraint processing, constraints of this handler may be deleted, activated, deactivated,
2781  * enabled, disabled, marked obsolete or useful, which would change the conss array given to the
2782  * external method; to avoid this, these changes will be buffered and processed after the method call
2783  */
2784  conshdlrDelayUpdates(conshdlr);
2785 
2786  oldninitconss = conshdlr->ninitconss;
2787 
2788  /* start timing */
2789  SCIPclockStart(conshdlr->sepatime, set);
2790 
2791  if( initkeptconss )
2792  {
2793  /* add all kept initial constraints which are currently active to the second part of the initconss array */
2794  /* @todo keep track of where a constraint was already initialized (e.g., in the conssetchg)? */
2795  for( c = 0; c < conshdlr->ninitconsskept; ++c )
2796  {
2797  assert(conshdlr->initconss[c]->initconsspos == c);
2798 
2799  if( SCIPconsIsActive(conshdlr->initconss[c]) )
2800  {
2801  SCIP_CALL( conshdlrAddInitcons(conshdlr, set, stat, conshdlr->initconss[c]) );
2802  }
2803  }
2804  }
2805 
2806  /* call external method */
2807  SCIP_CALL( conshdlr->consinitlp(set->scip, conshdlr, &conshdlr->initconss[conshdlr->ninitconsskept],
2808  conshdlr->ninitconss - conshdlr->ninitconsskept, cutoff) );
2809 
2810  /* stop timing */
2811  SCIPclockStop(conshdlr->sepatime, set);
2812 
2813  /* perform the cached constraint updates */
2814  SCIP_CALL( conshdlrForceUpdates(conshdlr, blkmem, set, stat) );
2815 
2816  currentdepth = SCIPtreeGetCurrentDepth(tree);
2817  assert(currentdepth >= 0);
2818 
2819  /* clear the initconss array */
2820  for( c = conshdlr->ninitconsskept; c < oldninitconss; ++c )
2821  {
2822  assert(SCIPconsGetActiveDepth(conshdlr->initconss[c]) >= -1);
2823  assert(SCIPconsGetActiveDepth(conshdlr->initconss[c]) <= currentdepth);
2824 
2825  /* if the constraint was not initialized at its valid node, we keep it */
2826  if( currentdepth > 0 ? SCIPconsGetActiveDepth(conshdlr->initconss[c]) != currentdepth :
2827  SCIPconsGetActiveDepth(conshdlr->initconss[c]) > 0 )
2828  {
2829  conshdlr->initconss[conshdlr->ninitconsskept] = conshdlr->initconss[c];
2830  conshdlr->initconss[conshdlr->ninitconsskept]->initconsspos = conshdlr->ninitconsskept;
2831  ++(conshdlr->ninitconsskept);
2832  }
2833  else
2834  conshdlr->initconss[c]->initconsspos = -1;
2835  }
2836 #ifndef NDEBUG
2837  for( ; c < conshdlr->ninitconss; ++c )
2838  assert(conshdlr->initconss[c]->initconsspos < conshdlr->ninitconsskept);
2839 #endif
2840  conshdlr->ninitconss = conshdlr->ninitconsskept;
2841 
2842  if( conshdlr->ninitconss == 0 )
2843  {
2844  BMSfreeMemoryArrayNull(&conshdlr->initconss);
2845  conshdlr->initconsssize = 0;
2846  }
2847  }
2848 
2849  return SCIP_OKAY;
2850 }
2851 
2852 /** calls separator method of constraint handler to separate LP solution */
2854  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
2855  BMS_BLKMEM* blkmem, /**< block memory */
2856  SCIP_SET* set, /**< global SCIP settings */
2857  SCIP_STAT* stat, /**< dynamic problem statistics */
2858  SCIP_SEPASTORE* sepastore, /**< separation storage */
2859  int depth, /**< depth of current node */
2860  SCIP_Bool execdelayed, /**< execute separation method even if it is marked to be delayed */
2861  SCIP_RESULT* result /**< pointer to store the result of the callback method */
2862  )
2863 {
2864  assert(conshdlr != NULL);
2865  assert(conshdlr->nusefulsepaconss <= conshdlr->nsepaconss);
2866  assert(conshdlr->nusefulenfoconss <= conshdlr->nenfoconss);
2867  assert(conshdlr->nusefulcheckconss <= conshdlr->ncheckconss);
2868  assert(conshdlr->nusefulpropconss <= conshdlr->npropconss);
2869  assert(stat != NULL);
2870  assert(conshdlr->lastsepalpcount != stat->lpcount
2871  || (0 <= conshdlr->lastnusefulsepaconss && conshdlr->lastnusefulsepaconss <= conshdlr->nusefulsepaconss));
2872  assert(set != NULL);
2873  assert(result != NULL);
2874 
2875  *result = SCIP_DIDNOTRUN;
2876 
2877  if( conshdlr->conssepalp != NULL
2878  && ((depth == 0 && conshdlr->sepafreq == 0)
2879  || (conshdlr->sepafreq > 0 && depth % conshdlr->sepafreq == 0)
2880  || conshdlr->sepalpwasdelayed) )
2881  {
2882  /* check, if separation method should be delayed */
2883  if( !conshdlr->delaysepa || execdelayed )
2884  {
2885  int nconss;
2886  int nusefulconss;
2887  int firstcons;
2888 
2889  /* check, if this LP solution was already separated */
2890  if( conshdlr->lastsepalpcount == stat->lpcount )
2891  {
2892  /* all constraints that were not yet separated on the new LP solution must be useful constraints, which means,
2893  * that the new constraints are the last constraints of the useful ones
2894  */
2895  nconss = conshdlr->nusefulsepaconss - conshdlr->lastnusefulsepaconss;
2896  nusefulconss = nconss;
2897  firstcons = conshdlr->lastnusefulsepaconss;
2898  }
2899  else
2900  {
2901  /* on a new LP solution, we want to separate all constraints */
2902  nconss = conshdlr->nsepaconss;
2903  nusefulconss = conshdlr->nusefulsepaconss;
2904  firstcons = 0;
2905  }
2906  assert(firstcons >= 0);
2907  assert(firstcons + nconss <= conshdlr->nsepaconss);
2908  assert(nusefulconss <= nconss);
2909 
2910  /* constraint handlers without constraints should only be called once */
2911  if( nconss > 0 || (!conshdlr->needscons && conshdlr->lastsepalpcount != stat->lpcount) )
2912  {
2913  SCIP_CONS** conss;
2914  SCIP_Longint oldndomchgs;
2915  SCIP_Longint oldnprobdomchgs;
2916  SCIP_Longint lastsepalpcount;
2917  int oldncuts;
2918  int oldnactiveconss;
2919  int lastnusefulsepaconss;
2920 
2921  SCIPsetDebugMsg(set, "separating constraints %d to %d of %d constraints of handler <%s> (%s LP solution)\n",
2922  firstcons, firstcons + nconss - 1, conshdlr->nsepaconss, conshdlr->name,
2923  conshdlr->lastsepalpcount == stat->lpcount ? "old" : "new");
2924 
2925  /* remember the number of processed constraints on the current LP solution */
2926  lastsepalpcount = stat->lpcount;
2927  lastnusefulsepaconss = conshdlr->nusefulsepaconss;
2928 
2929  /* get the array of the constraints to be processed */
2930  conss = &(conshdlr->sepaconss[firstcons]);
2931 
2932  oldndomchgs = stat->nboundchgs + stat->nholechgs;
2933  oldnprobdomchgs = stat->nprobboundchgs + stat->nprobholechgs;
2934  oldncuts = SCIPsepastoreGetNCuts(sepastore);
2935  oldnactiveconss = stat->nactiveconss;
2936 
2937  /* check, if we want to use eager evaluation */
2938  if( (conshdlr->eagerfreq == 0 && conshdlr->nsepacalls == 0)
2939  || (conshdlr->eagerfreq > 0 && conshdlr->nsepacalls % conshdlr->eagerfreq == 0) )
2940  nusefulconss = nconss;
2941 
2942  /* because during constraint processing, constraints of this handler may be deleted, activated, deactivated,
2943  * enabled, disabled, marked obsolete or useful, which would change the conss array given to the
2944  * external method; to avoid this, these changes will be buffered and processed after the method call
2945  */
2946  conshdlrDelayUpdates(conshdlr);
2947  conshdlr->duringsepa = TRUE;
2948 
2949  /* start timing */
2950  SCIPclockStart(conshdlr->sepatime, set);
2951 
2952  /* call external method */
2953  SCIP_CALL( conshdlr->conssepalp(set->scip, conshdlr, conss, nconss, nusefulconss, result) );
2954  SCIPsetDebugMsg(set, " -> separating LP returned result <%d>\n", *result);
2955 
2956  /* stop timing */
2957  SCIPclockStop(conshdlr->sepatime, set);
2958 
2959  /* perform the cached constraint updates */
2960  conshdlr->duringsepa = FALSE;
2961  SCIP_CALL( conshdlrForceUpdates(conshdlr, blkmem, set, stat) );
2962 
2963  /* update statistics */
2964  if( *result != SCIP_DIDNOTRUN && *result != SCIP_DELAYED )
2965  {
2966  conshdlr->lastsepalpcount = lastsepalpcount;
2967  conshdlr->lastnusefulsepaconss = MIN(lastnusefulsepaconss, conshdlr->nusefulsepaconss);
2968  conshdlr->nsepacalls++;
2969  }
2970  if( *result == SCIP_CUTOFF )
2971  conshdlr->ncutoffs++;
2972  conshdlr->ncutsfound += SCIPsepastoreGetNCuts(sepastore) - oldncuts; /*lint !e776*/
2973  conshdlr->nconssfound += MAX(stat->nactiveconss - oldnactiveconss, 0); /*lint !e776*/
2974 
2975  /* update domain reductions; therefore remove the domain
2976  * reduction counts which were generated in probing mode */
2977  conshdlr->ndomredsfound += stat->nboundchgs + stat->nholechgs - oldndomchgs;
2978  conshdlr->ndomredsfound -= (stat->nprobboundchgs + stat->nprobholechgs - oldnprobdomchgs);
2979 
2980  /* evaluate result */
2981  if( *result != SCIP_CUTOFF
2982  && *result != SCIP_CONSADDED
2983  && *result != SCIP_REDUCEDDOM
2984  && *result != SCIP_SEPARATED
2985  && *result != SCIP_NEWROUND
2986  && *result != SCIP_DIDNOTFIND
2987  && *result != SCIP_DIDNOTRUN
2988  && *result != SCIP_DELAYED )
2989  {
2990  SCIPerrorMessage("LP separation method of constraint handler <%s> returned invalid result <%d>\n",
2991  conshdlr->name, *result);
2992  return SCIP_INVALIDRESULT;
2993  }
2994  }
2995  }
2996  else
2997  {
2998  SCIPsetDebugMsg(set, "LP separation method of constraint handler <%s> was delayed\n", conshdlr->name);
2999  *result = SCIP_DELAYED;
3000  }
3001 
3002  /* remember whether separation method was delayed */
3003  conshdlr->sepalpwasdelayed = (*result == SCIP_DELAYED);
3004  }
3005 
3006  return SCIP_OKAY;
3007 }
3008 
3009 /** calls separator method of constraint handler to separate given primal solution */
3011  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
3012  BMS_BLKMEM* blkmem, /**< block memory */
3013  SCIP_SET* set, /**< global SCIP settings */
3014  SCIP_STAT* stat, /**< dynamic problem statistics */
3015  SCIP_SEPASTORE* sepastore, /**< separation storage */
3016  SCIP_SOL* sol, /**< primal solution that should be separated */
3017  int depth, /**< depth of current node */
3018  SCIP_Bool execdelayed, /**< execute separation method even if it is marked to be delayed */
3019  SCIP_RESULT* result /**< pointer to store the result of the callback method */
3020  )
3021 {
3022  assert(conshdlr != NULL);
3023  assert(conshdlr->nusefulsepaconss <= conshdlr->nsepaconss);
3024  assert(conshdlr->nusefulenfoconss <= conshdlr->nenfoconss);
3025  assert(conshdlr->nusefulcheckconss <= conshdlr->ncheckconss);
3026  assert(conshdlr->nusefulpropconss <= conshdlr->npropconss);
3027  assert(set != NULL);
3028  assert(stat != NULL);
3029  assert(result != NULL);
3030 
3031  *result = SCIP_DIDNOTRUN;
3032 
3033  if( conshdlr->conssepasol != NULL
3034  && ((depth == 0 && conshdlr->sepafreq == 0)
3035  || (conshdlr->sepafreq > 0 && depth % conshdlr->sepafreq == 0)
3036  || conshdlr->sepasolwasdelayed) )
3037  {
3038  /* check, if separation method should be delayed */
3039  if( !conshdlr->delaysepa || execdelayed )
3040  {
3041  int nconss;
3042  int nusefulconss;
3043 
3044  /* always separate all constraints */
3045  nconss = conshdlr->nsepaconss;
3046  nusefulconss = conshdlr->nusefulsepaconss;
3047  assert(nusefulconss <= nconss);
3048 
3049  if( nconss > 0 || !conshdlr->needscons )
3050  {
3051  SCIP_CONS** conss;
3052  SCIP_Longint oldndomchgs;
3053  SCIP_Longint oldnprobdomchgs;
3054  int oldncuts;
3055  int oldnactiveconss;
3056 
3057  SCIPsetDebugMsg(set, "separating %d constraints of handler <%s> (primal solution %p)\n",
3058  nconss, conshdlr->name, (void*)sol);
3059 
3060  /* get the array of the constraints to be processed */
3061  conss = conshdlr->sepaconss;
3062 
3063  oldndomchgs = stat->nboundchgs + stat->nholechgs;
3064  oldnprobdomchgs = stat->nprobboundchgs + stat->nprobholechgs;
3065  oldncuts = SCIPsepastoreGetNCuts(sepastore);
3066  oldnactiveconss = stat->nactiveconss;
3067 
3068  /* check, if we want to use eager evaluation */
3069  if( (conshdlr->eagerfreq == 0 && conshdlr->nsepacalls == 0)
3070  || (conshdlr->eagerfreq > 0 && conshdlr->nsepacalls % conshdlr->eagerfreq == 0) )
3071  nusefulconss = nconss;
3072 
3073  /* because during constraint processing, constraints of this handler may be deleted, activated, deactivated,
3074  * enabled, disabled, marked obsolete or useful, which would change the conss array given to the
3075  * external method; to avoid this, these changes will be buffered and processed after the method call
3076  */
3077  conshdlrDelayUpdates(conshdlr);
3078  conshdlr->duringsepa = TRUE;
3079 
3080  /* start timing */
3081  SCIPclockStart(conshdlr->sepatime, set);
3082 
3083  /* call external method */
3084  SCIP_CALL( conshdlr->conssepasol(set->scip, conshdlr, conss, nconss, nusefulconss, sol, result) );
3085  SCIPsetDebugMsg(set, " -> separating sol returned result <%d>\n", *result);
3086 
3087  /* stop timing */
3088  SCIPclockStop(conshdlr->sepatime, set);
3089 
3090  /* perform the cached constraint updates */
3091  conshdlr->duringsepa = FALSE;
3092  SCIP_CALL( conshdlrForceUpdates(conshdlr, blkmem, set, stat) );
3093 
3094  /* update statistics */
3095  if( *result != SCIP_DIDNOTRUN && *result != SCIP_DELAYED )
3096  conshdlr->nsepacalls++;
3097  if( *result == SCIP_CUTOFF )
3098  conshdlr->ncutoffs++;
3099  conshdlr->ncutsfound += SCIPsepastoreGetNCuts(sepastore) - oldncuts; /*lint !e776*/
3100  conshdlr->nconssfound += MAX(stat->nactiveconss - oldnactiveconss, 0); /*lint !e776*/
3101 
3102  /* update domain reductions; therefore remove the domain
3103  * reduction counts which were generated in probing mode */
3104  conshdlr->ndomredsfound += stat->nboundchgs + stat->nholechgs - oldndomchgs;
3105  conshdlr->ndomredsfound -= (stat->nprobboundchgs + stat->nprobholechgs - oldnprobdomchgs);
3106 
3107  /* evaluate result */
3108  if( *result != SCIP_CUTOFF
3109  && *result != SCIP_CONSADDED
3110  && *result != SCIP_REDUCEDDOM
3111  && *result != SCIP_SEPARATED
3112  && *result != SCIP_NEWROUND
3113  && *result != SCIP_DIDNOTFIND
3114  && *result != SCIP_DIDNOTRUN
3115  && *result != SCIP_DELAYED )
3116  {
3117  SCIPerrorMessage("SOL separation method of constraint handler <%s> returned invalid result <%d>\n",
3118  conshdlr->name, *result);
3119  return SCIP_INVALIDRESULT;
3120  }
3121  }
3122  }
3123  else
3124  {
3125  SCIPsetDebugMsg(set, "SOL separation method of constraint handler <%s> was delayed\n", conshdlr->name);
3126  *result = SCIP_DELAYED;
3127  }
3128 
3129  /* remember whether separation method was delayed */
3130  conshdlr->sepasolwasdelayed = (*result == SCIP_DELAYED);
3131  }
3132 
3133  return SCIP_OKAY;
3134 }
3135 
3136 /** calls enforcing method of constraint handler for a relaxation solution for all constraints added after last
3137  * conshdlrResetEnfo() call
3138  */
3140  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
3141  BMS_BLKMEM* blkmem, /**< block memory */
3142  SCIP_SET* set, /**< global SCIP settings */
3143  SCIP_STAT* stat, /**< dynamic problem statistics */
3144  SCIP_TREE* tree, /**< branch and bound tree */
3145  SCIP_SEPASTORE* sepastore, /**< separation storage */
3146  SCIP_SOL* relaxsol, /**< solution to be enforced */
3147  SCIP_Bool solinfeasible, /**< was the solution already found out to be infeasible? */
3148  SCIP_RESULT* result /**< pointer to store the result of the callback method */
3149  )
3150 {
3151  int nconss;
3152  int nusefulconss;
3153  int firstcons;
3154  SCIP_Bool relaxchanged;
3155  SCIP_Bool lastinfeasible;
3156 
3157  assert(conshdlr != NULL);
3158  assert(conshdlr->nusefulsepaconss <= conshdlr->nsepaconss);
3159  assert(conshdlr->nusefulenfoconss <= conshdlr->nenfoconss);
3160  assert(conshdlr->nusefulcheckconss <= conshdlr->ncheckconss);
3161  assert(conshdlr->nusefulpropconss <= conshdlr->npropconss);
3162  assert(stat != NULL);
3163  assert(conshdlr->lastenfopsdomchgcount != stat->domchgcount
3164  || conshdlr->lastenfopsnode != stat->nnodes
3165  || (0 <= conshdlr->lastnusefulenfoconss && conshdlr->lastnusefulenfoconss <= conshdlr->nusefulenfoconss));
3166  assert(set != NULL);
3167  assert(tree != NULL);
3168  assert(tree->nchildren == 0);
3169  assert(relaxsol != NULL);
3170  assert(result != NULL);
3171 
3172  *result = SCIP_FEASIBLE;
3173 
3174  /* check, if this relaxation solution was already enforced at this node
3175  * the integrality constraint handler always needs to be enforced for all constraints since external branching
3176  * candidates are cleared before each resolve
3177  */
3178  if( conshdlr->lastenforelaxrelaxcount == stat->relaxcount
3179  && conshdlr->lastenforelaxdomchgcount == stat->domchgcount
3180  && conshdlr->lastenforelaxnode == stat->nnodes
3181  && conshdlr->lastenforelaxresult != SCIP_CONSADDED
3182  && conshdlr->lastenforelaxresult != SCIP_SOLVELP
3183  && ( strcmp(conshdlr->name, "integral") != 0 )
3184  )
3185  {
3186  assert(conshdlr->lastenforelaxresult != SCIP_CUTOFF);
3187  assert(conshdlr->lastenforelaxresult != SCIP_BRANCHED);
3188  assert(conshdlr->lastenforelaxresult != SCIP_REDUCEDDOM);
3189  assert(conshdlr->lastenforelaxresult != SCIP_DIDNOTRUN);
3190 
3191  /* if we already enforced the same relaxation solution at this node, we will only enforce new constraints in the
3192  * following; however, the result of the last call for the old constraint is still valid and we have to ensure
3193  * that an infeasibility in the last call is not lost because we only enforce new constraints
3194  */
3195  if( conshdlr->lastenforelaxresult == SCIP_INFEASIBLE )
3196  {
3197  *result = SCIP_INFEASIBLE;
3198  lastinfeasible = TRUE;
3199  }
3200  else
3201  lastinfeasible = FALSE;
3202 
3203  /* all constraints that were not yet enforced on the new relaxation solution must be useful constraints, which means,
3204  * that the new constraints are the last constraints of the useful ones
3205  */
3206  nconss = conshdlr->nusefulenfoconss - conshdlr->lastnusefulenfoconss;
3207  nusefulconss = nconss;
3208  firstcons = conshdlr->lastnusefulenfoconss;
3209  relaxchanged = FALSE;
3210  }
3211  else
3212  {
3213  /* on a new relaxation solution or a new node, we want to enforce all constraints */
3214  nconss = conshdlr->nenfoconss;
3215  nusefulconss = conshdlr->nusefulenfoconss;
3216  firstcons = 0;
3217  relaxchanged = TRUE;
3218  lastinfeasible = FALSE;
3219  }
3220  assert(firstcons >= 0);
3221  assert(firstcons + nconss <= conshdlr->nenfoconss);
3222  assert(nusefulconss <= nconss);
3223 
3224  /* constraint handlers without constraints should only be called once */
3225  if( nconss > 0 || (!conshdlr->needscons && relaxchanged) )
3226  {
3227  SCIP_CONS** conss;
3228  SCIP_Longint oldndomchgs;
3229  SCIP_Longint oldnprobdomchgs;
3230  int oldncuts;
3231  int oldnactiveconss;
3232 
3233  assert(conshdlr->consenforelax != NULL);
3234 
3235  SCIPdebugMessage("enforcing constraints %d to %d of %d constraints of handler <%s> (%s relaxation solution)\n",
3236  firstcons, firstcons + nconss - 1, conshdlr->nenfoconss, conshdlr->name, relaxchanged ? "new" : "old");
3237 
3238  /* remember the number of processed constraints on the current relaxation solution */
3239  conshdlr->lastenforelaxrelaxcount = stat->relaxcount;
3240  conshdlr->lastenforelaxdomchgcount = stat->domchgcount;
3241  conshdlr->lastenforelaxnode = stat->nnodes;
3242  conshdlr->lastnusefulenfoconss = conshdlr->nusefulenfoconss;
3243 
3244  /* get the array of the constraints to be processed */
3245  conss = &(conshdlr->enfoconss[firstcons]);
3246 
3247  oldncuts = SCIPsepastoreGetNCuts(sepastore);
3248  oldnactiveconss = stat->nactiveconss;
3249  oldndomchgs = stat->nboundchgs + stat->nholechgs;
3250  oldnprobdomchgs = stat->nprobboundchgs + stat->nprobholechgs;
3251 
3252  /* check, if we want to use eager evaluation */
3253  if( (conshdlr->eagerfreq == 0 && conshdlr->nenforelaxcalls == 0)
3254  || (conshdlr->eagerfreq > 0 && conshdlr->nenforelaxcalls % conshdlr->eagerfreq == 0) )
3255  nusefulconss = nconss;
3256 
3257  /* because during constraint processing, constraints of this handler may be deleted, activated, deactivated,
3258  * enabled, disabled, marked obsolete or useful, which would change the conss array given to the
3259  * external method; to avoid this, these changes will be buffered and processed after the method call
3260  */
3261  conshdlrDelayUpdates(conshdlr);
3262 
3263  /* start timing */
3264  SCIPclockStart(conshdlr->enforelaxtime, set);
3265 
3266  /* call external method */
3267  SCIP_CALL( conshdlr->consenforelax(set->scip, relaxsol, conshdlr, conss, nconss, nusefulconss, solinfeasible, result) );
3268  SCIPdebugMessage(" -> enforcing returned result <%d>\n", *result);
3269 
3270  /* stop timing */
3271  SCIPclockStop(conshdlr->enforelaxtime, set);
3272 
3273  /* perform the cached constraint updates */
3274  SCIP_CALL( conshdlrForceUpdates(conshdlr, blkmem, set, stat) );
3275 
3276  /* update statistics */
3277  if( *result != SCIP_DIDNOTRUN )
3278  conshdlr->nenforelaxcalls++;
3279  else
3280  {
3281  SCIPerrorMessage("enforcing method of constraint handler <%s> for relaxation returned an invalid result %d\n",
3282  conshdlr->name, *result);
3283  conshdlr->lastenforelaxresult = *result;
3284 
3285  return SCIP_INVALIDRESULT;
3286  }
3287 
3288  if( *result == SCIP_CUTOFF )
3289  conshdlr->ncutoffs++;
3290  conshdlr->ncutsfound += SCIPsepastoreGetNCuts(sepastore) - oldncuts; /*lint !e776*/
3291  conshdlr->nconssfound += MAX(stat->nactiveconss - oldnactiveconss, 0); /*lint !e776*/
3292 
3293  if( *result != SCIP_BRANCHED )
3294  {
3295  assert(tree->nchildren == 0);
3296 
3297  /* update domain reductions; therefore remove the domain
3298  * reduction counts which were generated in probing mode */
3299  conshdlr->ndomredsfound += stat->nboundchgs + stat->nholechgs - oldndomchgs;
3300  conshdlr->ndomredsfound -= (stat->nprobboundchgs + stat->nprobholechgs - oldnprobdomchgs);
3301  }
3302  else
3303  conshdlr->nchildren += tree->nchildren;
3304 
3305  /* remember the result of the enforcement call */
3306  conshdlr->lastenforelaxresult = *result;
3307 
3308  /* evaluate result */
3309  if( *result != SCIP_CUTOFF
3310  && *result != SCIP_CONSADDED
3311  && *result != SCIP_REDUCEDDOM
3312  && *result != SCIP_SEPARATED
3313  && *result != SCIP_BRANCHED
3314  && *result != SCIP_SOLVELP
3315  && *result != SCIP_INFEASIBLE
3316  && *result != SCIP_FEASIBLE
3317  && *result != SCIP_DIDNOTRUN )
3318  {
3319  SCIPerrorMessage("enforcing method of constraint handler <%s> for relaxation solutions returned invalid result <%d>\n",
3320  conshdlr->name, *result);
3321  return SCIP_INVALIDRESULT;
3322  }
3323 
3324  /* if the same relaxation solution was already enforced at this node, we only enforced new constraints this time;
3325  * if the enforelax call returns feasible now, the solution is only feasible w.r.t. the new constraints, if the
3326  * last call detected infeasibility for the old constraints, we have to change the result to infeasible
3327  */
3328  if( lastinfeasible && *result == SCIP_FEASIBLE )
3329  *result = SCIP_INFEASIBLE;
3330  }
3331 
3332  return SCIP_OKAY;
3333 }
3334 
3335 /** calls enforcing method of constraint handler for LP solution for all constraints added after last
3336  * conshdlrResetEnfo() call
3337  */
3339  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
3340  BMS_BLKMEM* blkmem, /**< block memory */
3341  SCIP_SET* set, /**< global SCIP settings */
3342  SCIP_STAT* stat, /**< dynamic problem statistics */
3343  SCIP_TREE* tree, /**< branch and bound tree */
3344  SCIP_SEPASTORE* sepastore, /**< separation storage */
3345  SCIP_Bool solinfeasible, /**< was the solution already found out to be infeasible? */
3346  SCIP_RESULT* result /**< pointer to store the result of the callback method */
3347  )
3348 {
3349  assert(conshdlr != NULL);
3350  assert(conshdlr->nusefulsepaconss <= conshdlr->nsepaconss);
3351  assert(conshdlr->nusefulenfoconss <= conshdlr->nenfoconss);
3352  assert(conshdlr->nusefulcheckconss <= conshdlr->ncheckconss);
3353  assert(conshdlr->nusefulpropconss <= conshdlr->npropconss);
3354  assert(stat != NULL);
3355  assert(conshdlr->lastenfolplpcount != stat->lpcount
3356  || conshdlr->lastenfolpdomchgcount != stat->domchgcount
3357  || conshdlr->lastenfolpnode != stat->nnodes
3358  || (0 <= conshdlr->lastnusefulenfoconss && conshdlr->lastnusefulenfoconss <= conshdlr->nusefulenfoconss));
3359  assert(set != NULL);
3360  assert(tree != NULL);
3361  assert(tree->nchildren == 0);
3362  assert(result != NULL);
3363 
3364  *result = SCIP_FEASIBLE;
3365 
3366  if( conshdlr->consenfolp != NULL )
3367  {
3368  int nconss;
3369  int nusefulconss;
3370  int firstcons;
3371  SCIP_Bool lpchanged;
3372  SCIP_Bool lastinfeasible;
3373 
3374  /* check, if this LP solution was already enforced at this node */
3375  if( conshdlr->lastenfolplpcount == stat->lpcount
3376  && conshdlr->lastenfolpdomchgcount == stat->domchgcount
3377  && conshdlr->lastenfolpnode == stat->nnodes
3378  && conshdlr->lastenfolpresult != SCIP_CONSADDED )
3379  {
3380  assert(conshdlr->lastenfolpresult == SCIP_FEASIBLE || conshdlr->lastenfolpresult == SCIP_INFEASIBLE
3381  || conshdlr->lastenfolpresult == SCIP_SEPARATED );
3382 
3383  /* if we already enforced the same pseudo solution at this node, we will only enforce new constraints in the
3384  * following; however, the result of the last call for the old constraint is still valid and we have to ensure
3385  * that an infeasibility in the last call is not lost because we only enforce new constraints
3386  */
3387  if( conshdlr->lastenfolpresult == SCIP_FEASIBLE )
3388  lastinfeasible = FALSE;
3389  else
3390  {
3391  assert(conshdlr->lastenfolpresult == SCIP_INFEASIBLE || conshdlr->lastenfolpresult == SCIP_SEPARATED);
3392  *result = SCIP_INFEASIBLE;
3393  lastinfeasible = TRUE;
3394  }
3395 
3396  /* all constraints that were not yet enforced on the new LP solution must be useful constraints, which means,
3397  * that the new constraints are the last constraints of the useful ones
3398  */
3399  nconss = conshdlr->nusefulenfoconss - conshdlr->lastnusefulenfoconss;
3400  nusefulconss = nconss;
3401  firstcons = conshdlr->lastnusefulenfoconss;
3402  lpchanged = FALSE;
3403  }
3404  else
3405  {
3406  /* on a new LP solution or a new node, we want to enforce all constraints */
3407  nconss = conshdlr->nenfoconss;
3408  nusefulconss = conshdlr->nusefulenfoconss;
3409  firstcons = 0;
3410  lpchanged = TRUE;
3411  lastinfeasible = FALSE;
3412  }
3413  assert(firstcons >= 0);
3414  assert(firstcons + nconss <= conshdlr->nenfoconss);
3415  assert(nusefulconss <= nconss);
3416 
3417  /* constraint handlers without constraints should only be called once */
3418  if( nconss > 0 || (!conshdlr->needscons && lpchanged) )
3419  {
3420  SCIP_CONS** conss;
3421  SCIP_Longint oldndomchgs;
3422  SCIP_Longint oldnprobdomchgs;
3423  int oldncuts;
3424  int oldnactiveconss;
3425 
3426  SCIPsetDebugMsg(set, "enforcing constraints %d to %d of %d constraints of handler <%s> (%s LP solution)\n",
3427  firstcons, firstcons + nconss - 1, conshdlr->nenfoconss, conshdlr->name, lpchanged ? "new" : "old");
3428 
3429  /* remember the number of processed constraints on the current LP solution */
3430  conshdlr->lastenfolplpcount = stat->lpcount;
3431  conshdlr->lastenfolpdomchgcount = stat->domchgcount;
3432  conshdlr->lastenfolpnode = stat->nnodes;
3433  conshdlr->lastnusefulenfoconss = conshdlr->nusefulenfoconss;
3434 
3435  /* get the array of the constraints to be processed */
3436  conss = &(conshdlr->enfoconss[firstcons]);
3437 
3438  oldncuts = SCIPsepastoreGetNCuts(sepastore);
3439  oldnactiveconss = stat->nactiveconss;
3440  oldndomchgs = stat->nboundchgs + stat->nholechgs;
3441  oldnprobdomchgs = stat->nprobboundchgs + stat->nprobholechgs;
3442 
3443  /* check, if we want to use eager evaluation */
3444  if( (conshdlr->eagerfreq == 0 && conshdlr->nenfolpcalls == 0)
3445  || (conshdlr->eagerfreq > 0 && conshdlr->nenfolpcalls % conshdlr->eagerfreq == 0) )
3446  nusefulconss = nconss;
3447 
3448  /* because during constraint processing, constraints of this handler may be deleted, activated, deactivated,
3449  * enabled, disabled, marked obsolete or useful, which would change the conss array given to the
3450  * external method; to avoid this, these changes will be buffered and processed after the method call
3451  */
3452  conshdlrDelayUpdates(conshdlr);
3453 
3454  /* start timing */
3455  SCIPclockStart(conshdlr->enfolptime, set);
3456 
3457  /* call external method */
3458  SCIP_CALL( conshdlr->consenfolp(set->scip, conshdlr, conss, nconss, nusefulconss, solinfeasible, result) );
3459  SCIPsetDebugMsg(set, " -> enforcing returned result <%d>\n", *result);
3460 
3461  /* stop timing */
3462  SCIPclockStop(conshdlr->enfolptime, set);
3463 
3464  /* perform the cached constraint updates */
3465  SCIP_CALL( conshdlrForceUpdates(conshdlr, blkmem, set, stat) );
3466 
3467  /* remember the result of the enforcement call */
3468  conshdlr->lastenfolpresult = *result;
3469 
3470  /* update statistics */
3471  if( *result != SCIP_DIDNOTRUN )
3472  conshdlr->nenfolpcalls++;
3473  if( *result == SCIP_CUTOFF )
3474  conshdlr->ncutoffs++;
3475  conshdlr->ncutsfound += SCIPsepastoreGetNCuts(sepastore) - oldncuts; /*lint !e776*/
3476  conshdlr->nconssfound += MAX(stat->nactiveconss - oldnactiveconss, 0); /*lint !e776*/
3477  if( *result != SCIP_BRANCHED )
3478  {
3479  assert(tree->nchildren == 0);
3480 
3481  /* update domain reductions; therefore remove the domain
3482  * reduction counts which were generated in probing mode */
3483  conshdlr->ndomredsfound += stat->nboundchgs + stat->nholechgs - oldndomchgs;
3484  conshdlr->ndomredsfound -= (stat->nprobboundchgs + stat->nprobholechgs - oldnprobdomchgs);
3485  }
3486  else
3487  conshdlr->nchildren += tree->nchildren;
3488 
3489  /* evaluate result */
3490  if( *result != SCIP_CUTOFF
3491  && *result != SCIP_CONSADDED
3492  && *result != SCIP_REDUCEDDOM
3493  && *result != SCIP_SEPARATED
3494  && *result != SCIP_SOLVELP
3495  && *result != SCIP_BRANCHED
3496  && *result != SCIP_INFEASIBLE
3497  && *result != SCIP_FEASIBLE )
3498  {
3499  SCIPerrorMessage("enforcing method of constraint handler <%s> for LP solutions returned invalid result <%d>\n",
3500  conshdlr->name, *result);
3501  return SCIP_INVALIDRESULT;
3502  }
3503 
3504  /* if the same LP solution was already enforced at this node, we only enforced new constraints this time;
3505  * if the enfolp call returns feasible now, the solution is only feasible w.r.t. the new constraints, if the
3506  * last call detected infeasibility for the old constraints, we have to change the result to infeasible
3507  */
3508  if( lastinfeasible && *result == SCIP_FEASIBLE )
3509  *result = SCIP_INFEASIBLE;
3510  }
3511  }
3512 
3513  return SCIP_OKAY;
3514 }
3515 
3516 /** calls diving solution enforcement callback of constraint handler, if it exists */
3518  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
3519  SCIP_SET* set, /**< global SCIP settings */
3520  SCIP_DIVESET* diveset, /**< diving settings to control scoring */
3521  SCIP_SOL* sol, /**< current solution of diving mode */
3522  SCIP_Bool* success, /**< pointer to store whether constraint handler successfully found a variable */
3523  SCIP_Bool* infeasible /**< pointer to store whether the current node was detected to be infeasible */
3524  )
3525 {
3526  assert(conshdlr != NULL);
3527  assert(set != NULL);
3528  assert(diveset != NULL);
3529  assert(sol != NULL);
3530  assert(success != NULL);
3531  assert(infeasible != NULL);
3532 
3533  if( conshdlr->consgetdivebdchgs != NULL )
3534  {
3535  SCIP_CALL( conshdlr->consgetdivebdchgs(set->scip, conshdlr, diveset, sol, success, infeasible) );
3536  }
3537 
3538  return SCIP_OKAY;
3539 }
3540 
3541 /** calls enforcing method of constraint handler for pseudo solution for all constraints added after last
3542  * conshdlrResetEnfo() call
3543  */
3545  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
3546  BMS_BLKMEM* blkmem, /**< block memory */
3547  SCIP_SET* set, /**< global SCIP settings */
3548  SCIP_STAT* stat, /**< dynamic problem statistics */
3549  SCIP_TREE* tree, /**< branch and bound tree */
3550  SCIP_BRANCHCAND* branchcand, /**< branching candidate storage */
3551  SCIP_Bool solinfeasible, /**< was the solution already found out to be infeasible? */
3552  SCIP_Bool objinfeasible, /**< is the solution infeasible anyway due to violating lower objective bound? */
3553  SCIP_Bool forced, /**< should enforcement of pseudo solution be forced? */
3554  SCIP_RESULT* result /**< pointer to store the result of the callback method */
3555  )
3556 {
3557  assert(conshdlr != NULL);
3558  assert(conshdlr->nusefulsepaconss <= conshdlr->nsepaconss);
3559  assert(conshdlr->nusefulenfoconss <= conshdlr->nenfoconss);
3560  assert(conshdlr->nusefulcheckconss <= conshdlr->ncheckconss);
3561  assert(conshdlr->nusefulpropconss <= conshdlr->npropconss);
3562  assert(stat != NULL);
3563  assert(conshdlr->lastenfopsdomchgcount != stat->domchgcount
3564  || conshdlr->lastenfopsnode != stat->nnodes
3565  || (0 <= conshdlr->lastnusefulenfoconss && conshdlr->lastnusefulenfoconss <= conshdlr->nusefulenfoconss));
3566  assert(set != NULL);
3567  assert(tree != NULL);
3568  assert(tree->nchildren == 0);
3569  assert(result != NULL);
3570 
3571  /* no enforcing of pseudo solution */
3572  if( set->cons_disableenfops && SCIPbranchcandGetNPseudoCands(branchcand) > 0 )
3573  {
3574  *result = SCIP_INFEASIBLE;
3575  return SCIP_OKAY;
3576  }
3577 
3578  *result = SCIP_FEASIBLE;
3579  if( conshdlr->consenfops != NULL )
3580  {
3581  int nconss;
3582  int nusefulconss;
3583  int firstcons;
3584  SCIP_Bool pschanged;
3585  SCIP_Bool lastinfeasible;
3586 
3587  /* check, if this pseudo solution was already enforced at this node */
3588  if( !forced && conshdlr->lastenfopsdomchgcount == stat->domchgcount
3589  && conshdlr->lastenfopsnode == stat->nnodes
3590  && conshdlr->lastenfopsresult != SCIP_CONSADDED
3591  && conshdlr->lastenfopsresult != SCIP_SOLVELP
3592  )
3593  {
3594  assert(conshdlr->lastenfopsresult != SCIP_CUTOFF);
3595  assert(conshdlr->lastenfopsresult != SCIP_BRANCHED);
3596  assert(conshdlr->lastenfopsresult != SCIP_REDUCEDDOM);
3597  assert(conshdlr->lastenfopsresult != SCIP_DIDNOTRUN || objinfeasible);
3598 
3599  /* if we already enforced the same pseudo solution at this node, we will only enforce new constraints in the
3600  * following; however, the result of the last call for the old constraint is still valid and we have to ensure
3601  * that an infeasibility in the last call is not lost because we only enforce new constraints
3602  */
3603  if( conshdlr->lastenfopsresult == SCIP_INFEASIBLE )
3604  {
3605  *result = SCIP_INFEASIBLE;
3606  lastinfeasible = TRUE;
3607  }
3608  else
3609  lastinfeasible = FALSE;
3610 
3611  /* all constraints that were not yet enforced on the new LP solution must be useful constraints, which means,
3612  * that the new constraints are the last constraints of the useful ones
3613  */
3614  nconss = conshdlr->nusefulenfoconss - conshdlr->lastnusefulenfoconss;
3615  nusefulconss = nconss;
3616  firstcons = conshdlr->lastnusefulenfoconss;
3617  pschanged = FALSE;
3618  }
3619  else
3620  {
3621  /* on a new pseudo solution or a new node, we want to enforce all constraints */
3622  nconss = conshdlr->nenfoconss;
3623  nusefulconss = conshdlr->nusefulenfoconss;
3624  firstcons = 0;
3625  pschanged = TRUE;
3626  lastinfeasible = FALSE;
3627  }
3628  assert(firstcons >= 0);
3629  assert(firstcons + nconss <= conshdlr->nenfoconss);
3630  assert(nusefulconss <= nconss);
3631 
3632  /* constraint handlers without constraints should only be called once */
3633  if( nconss > 0 || (!conshdlr->needscons && pschanged) )
3634  {
3635  SCIP_CONS** conss;
3636  SCIP_Longint oldndomchgs;
3637  SCIP_Longint oldnprobdomchgs;
3638 
3639  SCIPsetDebugMsg(set, "enforcing constraints %d to %d of %d constraints of handler <%s> (%s pseudo solution, objinfeasible=%u)\n",
3640  firstcons, firstcons + nconss - 1, conshdlr->nenfoconss, conshdlr->name, pschanged ? "new" : "old", objinfeasible);
3641 
3642  /* remember the number of processed constraints on the current pseudo solution */
3643  conshdlr->lastenfopsdomchgcount = stat->domchgcount;
3644  conshdlr->lastenfopsnode = stat->nnodes;
3645  conshdlr->lastnusefulenfoconss = conshdlr->nusefulenfoconss;
3646 
3647  /* get the array of the constraints to be processed */
3648  conss = &(conshdlr->enfoconss[firstcons]);
3649 
3650  oldndomchgs = stat->nboundchgs + stat->nholechgs;
3651  oldnprobdomchgs = stat->nprobboundchgs + stat->nprobholechgs;
3652 
3653  /* check, if we want to use eager evaluation */
3654  if( (conshdlr->eagerfreq == 0 && conshdlr->nenfopscalls == 0)
3655  || (conshdlr->eagerfreq > 0 && conshdlr->nenfopscalls % conshdlr->eagerfreq == 0) )
3656  nusefulconss = nconss;
3657 
3658  /* because during constraint processing, constraints of this handler may be deleted, activated, deactivated,
3659  * enabled, disabled, marked obsolete or useful, which would change the conss array given to the
3660  * external method; to avoid this, these changes will be buffered and processed after the method call
3661  */
3662  conshdlrDelayUpdates(conshdlr);
3663 
3664  /* start timing */
3665  SCIPclockStart(conshdlr->enfopstime, set);
3666 
3667  /* call external method */
3668  SCIP_CALL( conshdlr->consenfops(set->scip, conshdlr, conss, nconss, nusefulconss, solinfeasible, objinfeasible, result) );
3669  SCIPsetDebugMsg(set, " -> enforcing returned result <%d>\n", *result);
3670 
3671  /* stop timing */
3672  SCIPclockStop(conshdlr->enfopstime, set);
3673 
3674  /* perform the cached constraint updates */
3675  SCIP_CALL( conshdlrForceUpdates(conshdlr, blkmem, set, stat) );
3676 
3677  /* update statistics */
3678  if( *result != SCIP_DIDNOTRUN )
3679  conshdlr->nenfopscalls++;
3680  else if( !objinfeasible )
3681  {
3682  SCIPerrorMessage("enforcing method of constraint handler <%s> for pseudo solutions was skipped, even though the solution was not objective-infeasible\n",
3683  conshdlr->name);
3684  conshdlr->lastenfopsresult = *result;
3685 
3686  return SCIP_INVALIDRESULT;
3687  }
3688  /* A constraint handler might return SCIP_DIDNOTRUN and not check any constraints in case objinfeasible was
3689  * TRUE; we change the result pointer to SCIP_INFEASIBLE in this case.
3690  */
3691  else
3692  *result = SCIP_INFEASIBLE;
3693 
3694  if( *result == SCIP_CUTOFF )
3695  conshdlr->ncutoffs++;
3696 
3697  if( *result != SCIP_BRANCHED )
3698  {
3699  assert(tree->nchildren == 0);
3700 
3701  /* update domain reductions; therefore remove the domain
3702  * reduction counts which were generated in probing mode */
3703  conshdlr->ndomredsfound += stat->nboundchgs + stat->nholechgs - oldndomchgs;
3704  conshdlr->ndomredsfound -= (stat->nprobboundchgs + stat->nprobholechgs - oldnprobdomchgs);
3705  }
3706  else
3707  conshdlr->nchildren += tree->nchildren;
3708 
3709  /* remember the result of the enforcement call */
3710  conshdlr->lastenfopsresult = *result;
3711 
3712  /* evaluate result */
3713  if( *result != SCIP_CUTOFF
3714  && *result != SCIP_CONSADDED
3715  && *result != SCIP_REDUCEDDOM
3716  && *result != SCIP_BRANCHED
3717  && *result != SCIP_SOLVELP
3718  && *result != SCIP_INFEASIBLE
3719  && *result != SCIP_FEASIBLE
3720  && *result != SCIP_DIDNOTRUN )
3721  {
3722  SCIPerrorMessage("enforcing method of constraint handler <%s> for pseudo solutions returned invalid result <%d>\n",
3723  conshdlr->name, *result);
3724  return SCIP_INVALIDRESULT;
3725  }
3726 
3727  /* if the same pseudo solution was already enforced at this node, we only enforced new constraints this time;
3728  * if the enfops call returns feasible now, the solution is only feasible w.r.t. the new constraints, if the
3729  * last call detected infeasibility for the old constraints, we have to change the result to infeasible
3730  */
3731  if( lastinfeasible && *result == SCIP_FEASIBLE )
3732  *result = SCIP_INFEASIBLE;
3733  }
3734  }
3735 
3736  return SCIP_OKAY;
3737 }
3738 
3739 /** calls feasibility check method of constraint handler */
3741  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
3742  BMS_BLKMEM* blkmem, /**< block memory */
3743  SCIP_SET* set, /**< global SCIP settings */
3744  SCIP_STAT* stat, /**< dynamic problem statistics */
3745  SCIP_SOL* sol, /**< primal CIP solution */
3746  SCIP_Bool checkintegrality, /**< Has integrality to be checked? */
3747  SCIP_Bool checklprows, /**< Do constraints represented by rows in the current LP have to be checked? */
3748  SCIP_Bool printreason, /**< Should the reason for the violation be printed? */
3749  SCIP_Bool completely, /**< Should all violations be checked? */
3750  SCIP_RESULT* result /**< pointer to store the result of the callback method */
3751  )
3752 {
3753  assert(conshdlr != NULL);
3754  assert(conshdlr->nusefulsepaconss <= conshdlr->nsepaconss);
3755  assert(conshdlr->nusefulenfoconss <= conshdlr->nenfoconss);
3756  assert(conshdlr->nusefulcheckconss <= conshdlr->ncheckconss);
3757  assert(conshdlr->nusefulpropconss <= conshdlr->npropconss);
3758  assert(set != NULL);
3759  assert(result != NULL);
3760 
3761  *result = SCIP_FEASIBLE;
3762 
3763  if( conshdlr->conscheck != NULL && (!conshdlr->needscons || conshdlr->ncheckconss > 0) )
3764  {
3765  SCIPsetDebugMsg(set, "checking %d constraints of handler <%s>\n", conshdlr->ncheckconss, conshdlr->name);
3766 
3767  /* because during constraint processing, constraints of this handler may be deleted, activated, deactivated,
3768  * enabled, disabled, marked obsolete or useful, which would change the conss array given to the
3769  * external method; to avoid this, these changes will be buffered and processed after the method call
3770  */
3771  conshdlrDelayUpdates(conshdlr);
3772 
3773  /* start timing */
3774  SCIPclockStart(conshdlr->checktime, set);
3775 
3776  /* call external method */
3777  SCIP_CALL( conshdlr->conscheck(set->scip, conshdlr, conshdlr->checkconss, conshdlr->ncheckconss,
3778  sol, checkintegrality, checklprows, printreason, completely, result) );
3779  SCIPsetDebugMsg(set, " -> checking returned result <%d>\n", *result);
3780 
3781  /* stop timing */
3782  SCIPclockStop(conshdlr->checktime, set);
3783 
3784  /* update statistics */
3785  conshdlr->ncheckcalls++;
3786 
3787  /* perform the cached constraint updates */
3788  SCIP_CALL( conshdlrForceUpdates(conshdlr, blkmem, set, stat) );
3789 
3790  /* evaluate result */
3791  if( *result != SCIP_INFEASIBLE && *result != SCIP_FEASIBLE )
3792  {
3793  SCIPerrorMessage("feasibility check of constraint handler <%s> returned invalid result <%d>\n", conshdlr->name, *result);
3794  return SCIP_INVALIDRESULT;
3795  }
3796  }
3797 
3798  return SCIP_OKAY;
3799 }
3800 
3801 /** calls propagation method of constraint handler */
3803  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
3804  BMS_BLKMEM* blkmem, /**< block memory */
3805  SCIP_SET* set, /**< global SCIP settings */
3806  SCIP_STAT* stat, /**< dynamic problem statistics */
3807  int depth, /**< depth of current node */
3808  SCIP_Bool fullpropagation, /**< should all constraints be propagated (or only new ones)? */
3809  SCIP_Bool execdelayed, /**< execute propagation method even if it is marked to be delayed */
3810  SCIP_Bool instrongbranching, /**< are we currently doing strong branching? */
3811  SCIP_PROPTIMING proptiming, /**< current point in the node solving process */
3812  SCIP_RESULT* result /**< pointer to store the result of the callback method */
3813  )
3814 {
3815  assert(conshdlr != NULL);
3816  assert(conshdlr->nusefulsepaconss <= conshdlr->nsepaconss);
3817  assert(conshdlr->nusefulenfoconss <= conshdlr->nenfoconss);
3818  assert(conshdlr->nusefulcheckconss <= conshdlr->ncheckconss);
3819  assert(conshdlr->nusefulpropconss <= conshdlr->npropconss);
3820  assert(stat != NULL);
3821  assert(conshdlr->lastpropdomchgcount != stat->domchgcount
3822  || (0 <= conshdlr->lastnusefulpropconss && conshdlr->lastnusefulpropconss <= conshdlr->nusefulpropconss));
3823  assert(set != NULL);
3824  assert(depth >= 0);
3825  assert(result != NULL);
3826 
3827  *result = SCIP_DIDNOTRUN;
3828 
3829  if( conshdlr->consprop != NULL
3830  && (!conshdlr->needscons || conshdlr->npropconss > 0)
3831  && ((depth == 0 && conshdlr->propfreq == 0)
3832  || (conshdlr->propfreq > 0 && depth % conshdlr->propfreq == 0)
3833  || conshdlr->propwasdelayed) )
3834  {
3835  /* check, if propagation method should be delayed */
3836  if( !conshdlr->delayprop || execdelayed )
3837  {
3838  int nconss;
3839  int nusefulconss;
3840  int nmarkedpropconss;
3841  int firstcons;
3842 
3843  /* check, if the current domains were already propagated */
3844  if( !fullpropagation && conshdlr->lastpropdomchgcount == stat->domchgcount && conshdlr->nmarkedpropconss == 0 )
3845  {
3846  /* all constraints that were not yet propagated on the new domains must be useful constraints, which means,
3847  * that the new constraints are the last constraints of the useful ones
3848  */
3849  nconss = conshdlr->nusefulpropconss - conshdlr->lastnusefulpropconss;
3850  nusefulconss = nconss;
3851  firstcons = conshdlr->lastnusefulpropconss;
3852  }
3853  else
3854  {
3855  /* on new domains, we want to propagate all constraints */
3856  nconss = conshdlr->npropconss;
3857  nusefulconss = conshdlr->nusefulpropconss;
3858  firstcons = 0;
3859  }
3860  assert(firstcons >= 0);
3861  assert(firstcons + nconss <= conshdlr->npropconss);
3862  assert(nusefulconss <= nconss);
3863 
3864  nmarkedpropconss = conshdlr->nmarkedpropconss;
3865 
3866  /* constraint handlers without constraints should only be called once */
3867  if( nconss > 0 || fullpropagation
3868  || (!conshdlr->needscons && conshdlr->lastpropdomchgcount != stat->domchgcount) )
3869  {
3870  SCIP_CONS** conss;
3871  SCIP_Longint oldndomchgs;
3872  SCIP_Longint oldnprobdomchgs;
3873  SCIP_Longint lastpropdomchgcount;
3874  int lastnusefulpropconss;
3875 
3876  SCIPsetDebugMsg(set, "propagating constraints %d to %d of %d constraints of handler <%s> (%s pseudo solution, %d useful)\n",
3877  firstcons, firstcons + nconss - 1, conshdlr->npropconss, conshdlr->name,
3878  !fullpropagation && conshdlr->lastpropdomchgcount == stat->domchgcount ? "old" : "new", nusefulconss);
3879 
3880  /* remember the number of processed constraints on the current domains */
3881  lastpropdomchgcount = stat->domchgcount;
3882  lastnusefulpropconss = conshdlr->nusefulpropconss;
3883 
3884  /* get the array of the constraints to be processed */
3885  conss = &(conshdlr->propconss[firstcons]);
3886 
3887  oldndomchgs = stat->nboundchgs + stat->nholechgs;
3888  oldnprobdomchgs = stat->nprobboundchgs + stat->nprobholechgs;
3889 
3890  /* check, if we want to use eager evaluation */
3891  if( (conshdlr->eagerfreq == 0 && conshdlr->npropcalls == 0)
3892  || (conshdlr->eagerfreq > 0 && conshdlr->npropcalls % conshdlr->eagerfreq == 0) )
3893  nusefulconss = nconss;
3894 
3895  /* because during constraint processing, constraints of this handler may be deleted, activated, deactivated,
3896  * enabled, disabled, marked obsolete or useful, which would change the conss array given to the
3897  * external method; to avoid this, these changes will be buffered and processed after the method call
3898  */
3899  conshdlrDelayUpdates(conshdlr);
3900  conshdlr->duringprop = TRUE;
3901 
3902  /* start timing */
3903  if( instrongbranching )
3904  SCIPclockStart(conshdlr->sbproptime, set);
3905  else
3906  SCIPclockStart(conshdlr->proptime, set);
3907 
3908  assert(nusefulconss <= nconss);
3909  assert(nmarkedpropconss <= nconss);
3910 
3911  /* call external method */
3912  SCIP_CALL( conshdlr->consprop(set->scip, conshdlr, conss, nconss, nusefulconss, nmarkedpropconss, proptiming, result) );
3913  SCIPsetDebugMsg(set, " -> propagation returned result <%d>\n", *result);
3914 
3915  /* stop timing */
3916  if( instrongbranching )
3917  SCIPclockStop(conshdlr->sbproptime, set);
3918  else
3919  SCIPclockStop(conshdlr->proptime, set);
3920 
3921  /* perform the cached constraint updates */
3922  conshdlr->duringprop = FALSE;
3923  SCIP_CALL( conshdlrForceUpdates(conshdlr, blkmem, set, stat) );
3924 
3925  /* update statistics */
3926  if( *result != SCIP_DIDNOTRUN && *result != SCIP_DELAYED )
3927  {
3928  conshdlr->lastpropdomchgcount = lastpropdomchgcount;
3929  conshdlr->lastnusefulpropconss = MIN(conshdlr->nusefulpropconss, lastnusefulpropconss);
3930  conshdlr->npropcalls++;
3931  }
3932  else
3933  {
3934  assert(lastpropdomchgcount == stat->domchgcount);
3935  assert(lastnusefulpropconss == conshdlr->nusefulpropconss);
3936  }
3937  if( *result == SCIP_CUTOFF )
3938  conshdlr->ncutoffs++;
3939 
3940  /* update domain reductions; therefore remove the domain
3941  * reduction counts which were generated in probing mode */
3942  conshdlr->ndomredsfound += stat->nboundchgs + stat->nholechgs - oldndomchgs;
3943  conshdlr->ndomredsfound -= (stat->nprobboundchgs + stat->nprobholechgs - oldnprobdomchgs);
3944 
3945  /* check result code of callback method */
3946  if( *result != SCIP_CUTOFF
3947  && *result != SCIP_REDUCEDDOM
3948  && *result != SCIP_DIDNOTFIND
3949  && *result != SCIP_DIDNOTRUN
3950  && *result != SCIP_DELAYED
3951  && *result != SCIP_DELAYNODE )
3952  {
3953  SCIPerrorMessage("propagation method of constraint handler <%s> returned invalid result <%d>\n",
3954  conshdlr->name, *result);
3955  return SCIP_INVALIDRESULT;
3956  }
3957  }
3958  }
3959  else
3960  {
3961  SCIPsetDebugMsg(set, "propagation method of constraint handler <%s> was delayed\n", conshdlr->name);
3962  *result = SCIP_DELAYED;
3963  }
3964 
3965  /* remember whether propagation method was delayed */
3966  conshdlr->propwasdelayed = (*result == SCIP_DELAYED);
3967  }
3968 
3969  return SCIP_OKAY;
3970 }
3971 
3972 /** calls presolving method of constraint handler */
3974  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
3975  BMS_BLKMEM* blkmem, /**< block memory */
3976  SCIP_SET* set, /**< global SCIP settings */
3977  SCIP_STAT* stat, /**< dynamic problem statistics */
3978  SCIP_PRESOLTIMING timing, /**< current presolving timing */
3979  int nrounds, /**< number of presolving rounds already done */
3980  int* nfixedvars, /**< pointer to total number of variables fixed of all presolvers */
3981  int* naggrvars, /**< pointer to total number of variables aggregated of all presolvers */
3982  int* nchgvartypes, /**< pointer to total number of variable type changes of all presolvers */
3983  int* nchgbds, /**< pointer to total number of variable bounds tightened of all presolvers */
3984  int* naddholes, /**< pointer to total number of domain holes added of all presolvers */
3985  int* ndelconss, /**< pointer to total number of deleted constraints of all presolvers */
3986  int* naddconss, /**< pointer to total number of added constraints of all presolvers */
3987  int* nupgdconss, /**< pointer to total number of upgraded constraints of all presolvers */
3988  int* nchgcoefs, /**< pointer to total number of changed coefficients of all presolvers */
3989  int* nchgsides, /**< pointer to total number of changed left/right hand sides of all presolvers */
3990  SCIP_RESULT* result /**< pointer to store the result of the callback method */
3991  )
3992 {
3993  assert(conshdlr != NULL);
3994  assert(conshdlr->nusefulsepaconss <= conshdlr->nsepaconss);
3995  assert(conshdlr->nusefulenfoconss <= conshdlr->nenfoconss);
3996  assert(conshdlr->nusefulcheckconss <= conshdlr->ncheckconss);
3997  assert(conshdlr->nusefulpropconss <= conshdlr->npropconss);
3998  assert(set != NULL);
3999  assert(nfixedvars != NULL);
4000  assert(naggrvars != NULL);
4001  assert(nchgvartypes != NULL);
4002  assert(nchgbds != NULL);
4003  assert(naddholes != NULL);
4004  assert(ndelconss != NULL);
4005  assert(naddconss != NULL);
4006  assert(nupgdconss != NULL);
4007  assert(nchgcoefs != NULL);
4008  assert(nchgsides != NULL);
4009  assert(result != NULL);
4010 
4011  *result = SCIP_DIDNOTRUN;
4012 
4013  if( conshdlr->conspresol != NULL
4014  && (!conshdlr->needscons || conshdlr->nactiveconss > 0)
4015  && (conshdlr->maxprerounds == -1 || conshdlr->npresolcalls < conshdlr->maxprerounds ) )
4016  {
4017  SCIPsetDebugMsg(set, "presolving %d constraints of handler <%s>\n", conshdlr->nactiveconss, conshdlr->name);
4018 
4019  /* check, if presolving method should be executed for the current timing */
4020  if( timing & conshdlr->presoltiming )
4021  {
4022  int nnewfixedvars;
4023  int nnewaggrvars;
4024  int nnewchgvartypes;
4025  int nnewchgbds;
4026  int nnewholes;
4027  int nnewdelconss;
4028  int nnewaddconss;
4029  int nnewupgdconss;
4030  int nnewchgcoefs;
4031  int nnewchgsides;
4032 
4033  /* calculate the number of changes since last call */
4034  nnewfixedvars = *nfixedvars - conshdlr->lastnfixedvars;
4035  nnewaggrvars = *naggrvars - conshdlr->lastnaggrvars;
4036  nnewchgvartypes = *nchgvartypes - conshdlr->lastnchgvartypes;
4037  nnewchgbds = *nchgbds - conshdlr->lastnchgbds;
4038  nnewholes = *naddholes - conshdlr->lastnaddholes;
4039  nnewdelconss = *ndelconss - conshdlr->lastndelconss;
4040  nnewaddconss = *naddconss - conshdlr->lastnaddconss;
4041  nnewupgdconss = *nupgdconss - conshdlr->lastnupgdconss;
4042  nnewchgcoefs = *nchgcoefs - conshdlr->lastnchgcoefs;
4043  nnewchgsides = *nchgsides - conshdlr->lastnchgsides;
4044 
4045  /* remember the old number of changes */
4046  conshdlr->lastnfixedvars = *nfixedvars;
4047  conshdlr->lastnaggrvars = *naggrvars;
4048  conshdlr->lastnchgvartypes = *nchgvartypes;
4049  conshdlr->lastnchgbds = *nchgbds;
4050  conshdlr->lastnaddholes = *naddholes;
4051  conshdlr->lastndelconss = *ndelconss;
4052  conshdlr->lastnaddconss = *naddconss;
4053  conshdlr->lastnupgdconss = *nupgdconss;
4054  conshdlr->lastnchgcoefs = *nchgcoefs;
4055  conshdlr->lastnchgsides = *nchgsides;
4056 
4057  /* because during constraint processing, constraints of this handler may be deleted, activated, deactivated,
4058  * enabled, disabled, marked obsolete or useful, which would change the conss array given to the
4059  * external method; to avoid this, these changes will be buffered and processed after the method call
4060  */
4061  conshdlrDelayUpdates(conshdlr);
4062 
4063  /* start timing */
4064  SCIPclockStart(conshdlr->presoltime, set);
4065 
4066  /* call external method */
4067  SCIP_CALL( conshdlr->conspresol(set->scip, conshdlr, conshdlr->conss, conshdlr->nactiveconss, nrounds, timing,
4068  nnewfixedvars, nnewaggrvars, nnewchgvartypes, nnewchgbds, nnewholes,
4069  nnewdelconss, nnewaddconss, nnewupgdconss, nnewchgcoefs, nnewchgsides,
4070  nfixedvars, naggrvars, nchgvartypes, nchgbds, naddholes,
4071  ndelconss, naddconss, nupgdconss, nchgcoefs, nchgsides, result) );
4072 
4073  /* stop timing */
4074  SCIPclockStop(conshdlr->presoltime, set);
4075 
4076  /* perform the cached constraint updates */
4077  SCIP_CALL( conshdlrForceUpdates(conshdlr, blkmem, set, stat) );
4078 
4079  /* count the new changes */
4080  conshdlr->nfixedvars += *nfixedvars - conshdlr->lastnfixedvars;
4081  conshdlr->naggrvars += *naggrvars - conshdlr->lastnaggrvars;
4082  conshdlr->nchgvartypes += *nchgvartypes - conshdlr->lastnchgvartypes;
4083  conshdlr->nchgbds += *nchgbds - conshdlr->lastnchgbds;
4084  conshdlr->naddholes += *naddholes - conshdlr->lastnaddholes;
4085  conshdlr->ndelconss += *ndelconss - conshdlr->lastndelconss;
4086  conshdlr->naddconss += *naddconss - conshdlr->lastnaddconss;
4087  conshdlr->nupgdconss += *nupgdconss - conshdlr->lastnupgdconss;
4088  conshdlr->nchgcoefs += *nchgcoefs - conshdlr->lastnchgcoefs;
4089  conshdlr->nchgsides += *nchgsides - conshdlr->lastnchgsides;
4090 
4091  /* check result code of callback method */
4092  if( *result != SCIP_CUTOFF
4093  && *result != SCIP_UNBOUNDED
4094  && *result != SCIP_SUCCESS
4095  && *result != SCIP_DIDNOTFIND
4096  && *result != SCIP_DIDNOTRUN
4097  && *result != SCIP_DELAYED )
4098  {
4099  SCIPerrorMessage("presolving method of constraint handler <%s> returned invalid result <%d>\n",
4100  conshdlr->name, *result);
4101  return SCIP_INVALIDRESULT;
4102  }
4103 
4104  /* increase the number of calls, if the presolving method tried to find reductions */
4105  if( *result != SCIP_DIDNOTRUN )
4106  ++(conshdlr->npresolcalls);
4107  }
4108 
4109  SCIPsetDebugMsg(set, "after presolving %d constraints left of handler <%s>\n", conshdlr->nactiveconss, conshdlr->name);
4110  }
4111 
4112  return SCIP_OKAY;
4113 }
4114 
4115 /** calls variable deletion method of constraint handler */
4117  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
4118  BMS_BLKMEM* blkmem, /**< block memory */
4119  SCIP_SET* set, /**< global SCIP settings */
4120  SCIP_STAT* stat /**< dynamic problem statistics */
4121  )
4122 {
4123  assert(conshdlr != NULL);
4124  assert(set != NULL);
4125 
4126  if( conshdlr->consdelvars != NULL )
4127  {
4128  SCIPsetDebugMsg(set, "deleting variables in constraints of handler <%s>\n", conshdlr->name);
4129 
4130  /* during constraint processing, constraints of this handler may be deleted, activated, deactivated,
4131  * enabled, disabled, marked obsolete or useful, which would change the conss array given to the
4132  * external method; to avoid this, these changes will be buffered and processed after the method call
4133  */
4134  conshdlrDelayUpdates(conshdlr);
4135 
4136  /* call external method */
4137  SCIP_CALL( conshdlr->consdelvars(set->scip, conshdlr, conshdlr->conss, conshdlr->nconss) );
4138 
4139  /* perform the cached constraint updates */
4140  SCIP_CALL( conshdlrForceUpdates(conshdlr, blkmem, set, stat) );
4141  }
4142 
4143  return SCIP_OKAY;
4144 }
4145 
4146 /** locks rounding of variables involved in the given constraint constraint handler that doesn't need constraints */
4148  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
4149  SCIP_SET* set /**< global SCIP settings */
4150  )
4151 {
4152  assert(conshdlr != NULL);
4153  assert(conshdlr->conslock != NULL);
4154  assert(!conshdlr->needscons);
4155 
4156  SCIP_CALL( conshdlr->conslock(set->scip, conshdlr, NULL, SCIP_LOCKTYPE_MODEL, +1, 0) );
4157 
4158  return SCIP_OKAY;
4159 }
4160 
4161 /** unlocks rounding of variables involved in the given constraint constraint handler that doesn't need constraints */
4163  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
4164  SCIP_SET* set /**< global SCIP settings */
4165  )
4166 {
4167  assert(conshdlr != NULL);
4168  assert(conshdlr->conslock != NULL);
4169  assert(!conshdlr->needscons);
4170 
4171  SCIP_CALL( conshdlr->conslock(set->scip, conshdlr, NULL, SCIP_LOCKTYPE_MODEL, -1, 0) );
4172 
4173  return SCIP_OKAY;
4174 }
4175 
4176 /** gets name of constraint handler */
4177 const char* SCIPconshdlrGetName(
4178  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4179  )
4180 {
4181  assert(conshdlr != NULL);
4182 
4183  return conshdlr->name;
4184 }
4185 
4186 /** gets description of constraint handler */
4187 const char* SCIPconshdlrGetDesc(
4188  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4189  )
4190 {
4191  assert(conshdlr != NULL);
4192 
4193  return conshdlr->desc;
4194 }
4195 
4196 /** gets user data of constraint handler */
4198  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4199  )
4200 {
4201  assert(conshdlr != NULL);
4202 
4203  return conshdlr->conshdlrdata;
4204 }
4205 
4206 /** sets user data of constraint handler; user has to free old data in advance! */
4207 void SCIPconshdlrSetData(
4208  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
4209  SCIP_CONSHDLRDATA* conshdlrdata /**< new constraint handler user data */
4210  )
4211 {
4212  assert(conshdlr != NULL);
4213 
4214  conshdlr->conshdlrdata = conshdlrdata;
4215 }
4216 
4217 /** sets all separation related callbacks of the constraint handler */
4218 void SCIPconshdlrSetSepa(
4219  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
4220  SCIP_DECL_CONSSEPALP ((*conssepalp)), /**< separate cutting planes for LP solution */
4221  SCIP_DECL_CONSSEPASOL ((*conssepasol)), /**< separate cutting planes for arbitrary primal solution */
4222  int sepafreq, /**< frequency for separating cuts; zero means to separate only in the root node */
4223  int sepapriority, /**< priority of the constraint handler for separation */
4224  SCIP_Bool delaysepa /**< should separation method be delayed, if other separators found cuts? */
4225  )
4226 {
4227  assert(conshdlr != NULL);
4228 
4229  assert(conssepalp != NULL || conssepasol != NULL || sepafreq == -1);
4230 
4231  conshdlr->conssepalp = conssepalp;
4232  conshdlr->conssepasol = conssepasol;
4233  conshdlr->sepafreq = sepafreq;
4234  conshdlr->sepapriority = sepapriority;
4235  conshdlr->delaysepa = delaysepa;
4236 }
4237 
4238 /** sets both the propagation callback and the propagation frequency of the constraint handler */
4239 void SCIPconshdlrSetProp(
4240  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
4241  SCIP_DECL_CONSPROP ((*consprop)), /**< propagate variable domains */
4242  int propfreq, /**< frequency for propagating domains; zero means only preprocessing propagation */
4243  SCIP_Bool delayprop, /**< should propagation method be delayed, if other propagators found reductions? */
4244  SCIP_PROPTIMING timingmask /**< positions in the node solving loop where propagators should be executed */
4245  )
4246 {
4247  assert(conshdlr != NULL);
4248 
4249  assert(consprop != NULL || propfreq == -1);
4250 
4251  conshdlr->consprop = consprop;
4252  conshdlr->propfreq = propfreq;
4253  conshdlr->delayprop = delayprop;
4254  conshdlr->proptiming = timingmask;
4255 }
4256 
4257 /** sets copy method of both the constraint handler and each associated constraint */
4259  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
4260  SCIP_DECL_CONSENFORELAX ((*consenforelax)) /**< constraint copying method */
4261  )
4262 {
4263  assert(conshdlr != NULL);
4264 
4265  conshdlr->consenforelax = consenforelax;
4266 }
4267 
4268 /** sets copy method of both the constraint handler and each associated constraint */
4269 void SCIPconshdlrSetCopy(
4270  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
4271  SCIP_DECL_CONSHDLRCOPY((*conshdlrcopy)), /**< copy method of constraint handler or NULL if you don't want to copy your plugin into sub-SCIPs */
4272  SCIP_DECL_CONSCOPY ((*conscopy)) /**< constraint copying method */
4273  )
4274 {
4275  assert(conshdlr != NULL);
4276 
4277  assert(!conshdlr->needscons || (conshdlrcopy == NULL) == (conscopy == NULL));
4278 
4279  conshdlr->conshdlrcopy = conshdlrcopy;
4280  conshdlr->conscopy = conscopy;
4281 }
4282 
4283 /** sets destructor method of constraint handler */
4284 void SCIPconshdlrSetFree(
4285  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
4286  SCIP_DECL_CONSFREE ((*consfree)) /**< destructor of constraint handler */
4287  )
4288 {
4289  assert(conshdlr != NULL);
4290 
4291  conshdlr->consfree = consfree;
4292 }
4293 
4294 /** sets initialization method of constraint handler */
4295 void SCIPconshdlrSetInit(
4296  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
4297  SCIP_DECL_CONSINIT ((*consinit)) /**< initialize constraint handler */
4298  )
4299 {
4300  assert(conshdlr != NULL);
4301 
4302  conshdlr->consinit = consinit;
4303 }
4304 
4305 /** sets deinitialization method of constraint handler */
4306 void SCIPconshdlrSetExit(
4307  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
4308  SCIP_DECL_CONSEXIT ((*consexit)) /**< deinitialize constraint handler */
4309  )
4310 {
4311  assert(conshdlr != NULL);
4312 
4313  conshdlr->consexit = consexit;
4314 }
4315 
4316 /** sets solving process initialization method of constraint handler */
4318  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
4319  SCIP_DECL_CONSINITSOL((*consinitsol)) /**< solving process initialization method of constraint handler */
4320  )
4321 {
4322  assert(conshdlr != NULL);
4323 
4324  conshdlr->consinitsol = consinitsol;
4325 }
4326 
4327 /** sets solving process deinitialization method of constraint handler */
4329  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
4330  SCIP_DECL_CONSEXITSOL ((*consexitsol)) /**< solving process deinitialization method of constraint handler */
4331  )
4332 {
4333  assert(conshdlr != NULL);
4334 
4335  conshdlr->consexitsol = consexitsol;
4336 }
4337 
4338 /** sets preprocessing initialization method of constraint handler */
4340  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
4341  SCIP_DECL_CONSINITPRE((*consinitpre)) /**< preprocessing initialization method of constraint handler */
4342  )
4343 {
4344  assert(conshdlr != NULL);
4345 
4346  conshdlr->consinitpre = consinitpre;
4347 }
4348 
4349 /** sets preprocessing deinitialization method of constraint handler */
4351  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
4352  SCIP_DECL_CONSEXITPRE((*consexitpre)) /**< preprocessing deinitialization method of constraint handler */
4353  )
4354 {
4355  assert(conshdlr != NULL);
4356 
4357  conshdlr->consexitpre = consexitpre;
4358 }
4359 
4360 /** sets presolving method of constraint handler */
4362  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
4363  SCIP_DECL_CONSPRESOL ((*conspresol)), /**< presolving method of constraint handler */
4364  int maxprerounds, /**< maximal number of presolving rounds the constraint handler participates in (-1: no limit) */
4365  SCIP_PRESOLTIMING presoltiming /**< timing mask of the constraint handler's presolving method */
4366  )
4367 {
4368  assert(conshdlr != NULL);
4369 
4370  conshdlr->conspresol = conspresol;
4371  conshdlr->maxprerounds = maxprerounds;
4372 
4373  /* the interface change from delay flags to timings cannot be recognized at compile time: Exit with an appropriate
4374  * error message
4375  */
4376  if( presoltiming < SCIP_PRESOLTIMING_FAST || presoltiming > SCIP_PRESOLTIMING_MAX )
4377  {
4378  SCIPmessagePrintError("ERROR: 'PRESOLDELAY'-flag no longer available since SCIP 3.2, use an appropriate "
4379  "'SCIP_PRESOLTIMING' for <%s> constraint handler instead.\n", conshdlr->name);
4380 
4381  return SCIP_PARAMETERWRONGVAL;
4382  }
4383 
4384  conshdlr->presoltiming = presoltiming;
4385 
4386  return SCIP_OKAY;
4387 }
4388 
4389 /** sets method of constraint handler to free specific constraint data */
4391  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
4392  SCIP_DECL_CONSDELETE ((*consdelete)) /**< free specific constraint data */
4393  )
4394 {
4395  assert(conshdlr != NULL);
4396 
4397  conshdlr->consdelete = consdelete;
4398 }
4399 
4400 /** sets method of constraint handler to transform constraint data into data belonging to the transformed problem */
4402  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
4403  SCIP_DECL_CONSTRANS ((*constrans)) /**< transform constraint data into data belonging to the transformed problem */
4404  )
4405 {
4406  assert(conshdlr != NULL);
4407 
4408  conshdlr->constrans = constrans;
4409 }
4410 
4411 /** sets method of constraint handler to initialize LP with relaxations of "initial" constraints */
4413  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
4414  SCIP_DECL_CONSINITLP ((*consinitlp)) /**< initialize LP with relaxations of "initial" constraints */
4415  )
4416 {
4417  assert(conshdlr != NULL);
4418 
4419  conshdlr->consinitlp = consinitlp;
4420 }
4421 
4422 /** sets propagation conflict resolving method of constraint handler */
4424  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
4425  SCIP_DECL_CONSRESPROP ((*consresprop)) /**< propagation conflict resolving method */
4426  )
4427 {
4428  assert(conshdlr != NULL);
4429 
4430  conshdlr->consresprop = consresprop;
4431 }
4432 
4433 /** sets activation notification method of constraint handler */
4435  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
4436  SCIP_DECL_CONSACTIVE ((*consactive)) /**< activation notification method */
4437  )
4438 {
4439  assert(conshdlr != NULL);
4440 
4441  conshdlr->consactive = consactive;
4442 }
4443 
4444 /** sets deactivation notification method of constraint handler */
4446  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
4447  SCIP_DECL_CONSDEACTIVE((*consdeactive)) /**< deactivation notification method */
4448  )
4449 {
4450  assert(conshdlr != NULL);
4451 
4452  conshdlr->consdeactive = consdeactive;
4453 }
4454 
4455 /** sets enabling notification method of constraint handler */
4457  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
4458  SCIP_DECL_CONSENABLE ((*consenable)) /**< enabling notification method */
4459  )
4460 {
4461  assert(conshdlr != NULL);
4462 
4463  conshdlr->consenable = consenable;
4464 }
4465 
4466 /** sets disabling notification method of constraint handler */
4468  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
4469  SCIP_DECL_CONSDISABLE ((*consdisable)) /**< disabling notification method */
4470  )
4471 {
4472  assert(conshdlr != NULL);
4473 
4474  conshdlr->consdisable = consdisable;
4475 }
4476 
4477 /** sets variable deletion method of constraint handler */
4479  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
4480  SCIP_DECL_CONSDELVARS ((*consdelvars)) /**< variable deletion method */
4481  )
4482 {
4483  assert(conshdlr != NULL);
4484 
4485  conshdlr->consdelvars = consdelvars;
4486 }
4487 
4488 /** sets constraint display method of constraint handler */
4490  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
4491  SCIP_DECL_CONSPRINT ((*consprint)) /**< constraint display method */
4492  )
4493 {
4494  assert(conshdlr != NULL);
4495 
4496  conshdlr->consprint = consprint;
4497 }
4498 
4499 /** sets constraint parsing method of constraint handler */
4501  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
4502  SCIP_DECL_CONSPARSE ((*consparse)) /**< constraint parsing method */
4503  )
4504 {
4505  assert(conshdlr != NULL);
4506 
4507  conshdlr->consparse = consparse;
4508 }
4509 
4510 /** sets constraint variable getter method of constraint handler */
4512  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
4513  SCIP_DECL_CONSGETVARS ((*consgetvars)) /**< constraint variable getter method */
4514  )
4515 {
4516  assert(conshdlr != NULL);
4517 
4518  conshdlr->consgetvars = consgetvars;
4519 }
4520 
4521 /** sets constraint variable number getter method of constraint handler */
4523  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
4524  SCIP_DECL_CONSGETNVARS((*consgetnvars)) /**< constraint variable number getter method */
4525  )
4526 {
4527  assert(conshdlr != NULL);
4528 
4529  conshdlr->consgetnvars = consgetnvars;
4530 }
4531 
4532 /** sets diving enforcement method of constraint handler */
4534  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
4535  SCIP_DECL_CONSGETDIVEBDCHGS((*consgetdivebdchgs)) /**< constraint handler diving solution enforcement method */
4536  )
4537 {
4538  assert(conshdlr != NULL);
4539 
4540  conshdlr->consgetdivebdchgs = consgetdivebdchgs;
4541 }
4542 
4543 /** gets array with constraints of constraint handler; the first SCIPconshdlrGetNActiveConss() entries are the active
4544  * constraints, the last SCIPconshdlrGetNConss() - SCIPconshdlrGetNActiveConss() constraints are deactivated
4545  *
4546  * @note A constraint is active if it is global and was not removed or it was added locally (in that case the local
4547  * flag is TRUE) and the current node belongs to the corresponding sub tree.
4548  */
4550  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4551  )
4552 {
4553  assert(conshdlr != NULL);
4554 
4555  return conshdlr->conss;
4556 }
4557 
4558 /** gets array with enforced constraints of constraint handler; this is local information */
4560  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4561  )
4562 {
4563  assert(conshdlr != NULL);
4564 
4565  return conshdlr->enfoconss;
4566 }
4567 
4568 /** gets array with checked constraints of constraint handler; this is local information */
4570  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4571  )
4572 {
4573  assert(conshdlr != NULL);
4574 
4575  return conshdlr->checkconss;
4576 }
4577 
4578 /** gets array with delayed update constraints
4579  *
4580  * @attention Usually, there should be no need to access this array. Use this only if you are absolutely sure what you are doing.
4581  */
4583  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4584  )
4585 {
4586  assert(conshdlr != NULL);
4587 
4588  return conshdlr->updateconss;
4589 }
4590 
4591 /** gets total number of existing transformed constraints of constraint handler */
4593  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4594  )
4595 {
4596  assert(conshdlr != NULL);
4597 
4598  return conshdlr->nconss;
4599 }
4600 
4601 /** gets number of enforced constraints of constraint handler; this is local information */
4603  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4604  )
4605 {
4606  assert(conshdlr != NULL);
4607 
4608  return conshdlr->nenfoconss;
4609 }
4610 
4611 /** gets number of checked constraints of constraint handler; this is local information */
4613  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4614  )
4615 {
4616  assert(conshdlr != NULL);
4617 
4618  return conshdlr->ncheckconss;
4619 }
4620 
4621 /** gets number of active constraints of constraint handler
4622  *
4623  * @note A constraint is active if it is global and was not removed or it was added locally (in that case the local
4624  * flag is TRUE) and the current node belongs to the corresponding sub tree.
4625  */
4627  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4628  )
4629 {
4630  assert(conshdlr != NULL);
4631 
4632  return conshdlr->nactiveconss;
4633 }
4634 
4635 /** gets number of enabled constraints of constraint handler */
4637  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4638  )
4639 {
4640  assert(conshdlr != NULL);
4641 
4642  return conshdlr->nenabledconss;
4643 }
4644 
4645 /** gets number of constraints that have delayed updates */
4647  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4648  )
4649 {
4650  assert(conshdlr != NULL);
4651 
4652  return conshdlr->nupdateconss;
4653 }
4654 
4655 /** enables or disables all clocks of \p conshdlr, depending on the value of the flag */
4657  SCIP_CONSHDLR* conshdlr, /**< the constraint handler for which all clocks should be enabled or disabled */
4658  SCIP_Bool enable /**< should the clocks of the constraint handler be enabled? */
4659  )
4660 {
4661  assert(conshdlr != NULL);
4662 
4663  SCIPclockEnableOrDisable(conshdlr->setuptime, enable);
4664  SCIPclockEnableOrDisable(conshdlr->checktime, enable);
4665  SCIPclockEnableOrDisable(conshdlr->enfolptime, enable);
4666  SCIPclockEnableOrDisable(conshdlr->enfopstime, enable);
4667  SCIPclockEnableOrDisable(conshdlr->enforelaxtime, enable);
4668  SCIPclockEnableOrDisable(conshdlr->presoltime, enable);
4669  SCIPclockEnableOrDisable(conshdlr->proptime, enable);
4670  SCIPclockEnableOrDisable(conshdlr->resproptime, enable);
4671  SCIPclockEnableOrDisable(conshdlr->sbproptime, enable);
4672  SCIPclockEnableOrDisable(conshdlr->sepatime, enable);
4673 }
4674 
4675 /** gets time in seconds used for setting up this constraint handler for new stages */
4677  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4678  )
4679 {
4680  assert(conshdlr != NULL);
4681 
4682  return SCIPclockGetTime(conshdlr->setuptime);
4683 }
4684 
4685 /** gets time in seconds used for presolving in this constraint handler */
4687  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4688  )
4689 {
4690  assert(conshdlr != NULL);
4691 
4692  return SCIPclockGetTime(conshdlr->presoltime);
4693 }
4694 
4695 /** gets time in seconds used for separation in this constraint handler */
4697  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4698  )
4699 {
4700  assert(conshdlr != NULL);
4701 
4702  return SCIPclockGetTime(conshdlr->sepatime);
4703 }
4704 
4705 /** gets time in seconds used for LP enforcement in this constraint handler */
4707  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4708  )
4709 {
4710  assert(conshdlr != NULL);
4711 
4712  return SCIPclockGetTime(conshdlr->enfolptime);
4713 }
4714 
4715 /** gets time in seconds used for pseudo enforcement in this constraint handler */
4717  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4718  )
4719 {
4720  assert(conshdlr != NULL);
4721 
4722  return SCIPclockGetTime(conshdlr->enfopstime);
4723 }
4724 
4725 /** gets time in seconds used for relaxation enforcement in this constraint handler */
4727  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4728  )
4729 {
4730  assert(conshdlr != NULL);
4731 
4732  return SCIPclockGetTime(conshdlr->enforelaxtime);
4733 }
4734 
4735 /** gets time in seconds used for propagation in this constraint handler */
4737  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4738  )
4739 {
4740  assert(conshdlr != NULL);
4741 
4742  return SCIPclockGetTime(conshdlr->proptime);
4743 }
4744 
4745 /** gets time in seconds used for propagation in this constraint handler during strong branching */
4747  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4748  )
4749 {
4750  assert(conshdlr != NULL);
4751 
4752  return SCIPclockGetTime(conshdlr->sbproptime);
4753 }
4754 
4755 /** gets time in seconds used for feasibility checking in this constraint handler */
4757  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4758  )
4759 {
4760  assert(conshdlr != NULL);
4761 
4762  return SCIPclockGetTime(conshdlr->checktime);
4763 }
4764 
4765 /** gets time in seconds used for resolving propagation in this constraint handler */
4767  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4768  )
4769 {
4770  assert(conshdlr != NULL);
4771 
4772  return SCIPclockGetTime(conshdlr->resproptime);
4773 }
4774 
4775 /** gets number of calls to the constraint handler's separation method */
4777  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4778  )
4779 {
4780  assert(conshdlr != NULL);
4781 
4782  return conshdlr->nsepacalls;
4783 }
4784 
4785 /** gets number of calls to the constraint handler's LP enforcing method */
4787  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4788  )
4789 {
4790  assert(conshdlr != NULL);
4791 
4792  return conshdlr->nenfolpcalls;
4793 }
4794 
4795 /** gets number of calls to the constraint handler's pseudo enforcing method */
4797  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4798  )
4799 {
4800  assert(conshdlr != NULL);
4801 
4802  return conshdlr->nenfopscalls;
4803 }
4804 
4805 /** gets number of calls to the constraint handler's relaxation enforcing method */
4807  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4808  )
4809 {
4810  assert(conshdlr != NULL);
4811 
4812  return conshdlr->nenforelaxcalls;
4813 }
4814 
4815 /** gets number of calls to the constraint handler's propagation method */
4817  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4818  )
4819 {
4820  assert(conshdlr != NULL);
4821 
4822  return conshdlr->npropcalls;
4823 }
4824 
4825 /** gets number of calls to the constraint handler's checking method */
4827  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4828  )
4829 {
4830  assert(conshdlr != NULL);
4831 
4832  return conshdlr->ncheckcalls;
4833 }
4834 
4835 /** gets number of calls to the constraint handler's resolve propagation method */
4837  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4838  )
4839 {
4840  assert(conshdlr != NULL);
4841 
4842  return conshdlr->nrespropcalls;
4843 }
4844 
4845 /** gets total number of times, this constraint handler detected a cutoff */
4847  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4848  )
4849 {
4850  assert(conshdlr != NULL);
4851 
4852  return conshdlr->ncutoffs;
4853 }
4854 
4855 /** gets total number of cuts found by this constraint handler */
4857  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4858  )
4859 {
4860  assert(conshdlr != NULL);
4861 
4862  return conshdlr->ncutsfound;
4863 }
4864 
4865 /** gets total number of cuts found by this constraint handler applied to lp */
4867  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4868  )
4869 {
4870  assert(conshdlr != NULL);
4871 
4872  return conshdlr->ncutsapplied;
4873 }
4874 
4875 /** increase count of applied cuts */
4877  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4878  )
4879 {
4880  assert(conshdlr != NULL);
4881 
4882  ++conshdlr->ncutsapplied;
4883 }
4884 
4885 /** increase count of found cuts */
4887  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4888  )
4889 {
4890  assert(conshdlr != NULL);
4891 
4892  ++conshdlr->ncutsfound;
4893 }
4894 
4895 /** gets total number of additional constraints added by this constraint handler */
4897  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4898  )
4899 {
4900  assert(conshdlr != NULL);
4901 
4902  return conshdlr->nconssfound;
4903 }
4904 
4905 /** gets total number of domain reductions found by this constraint handler */
4907  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4908  )
4909 {
4910  assert(conshdlr != NULL);
4911 
4912  return conshdlr->ndomredsfound;
4913 }
4914 
4915 /** gets number of children created by this constraint handler */
4917  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4918  )
4919 {
4920  assert(conshdlr != NULL);
4921 
4922  return conshdlr->nchildren;
4923 }
4924 
4925 /** gets maximum number of active constraints of constraint handler existing at the same time */
4927  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4928  )
4929 {
4930  assert(conshdlr != NULL);
4931 
4932  return conshdlr->maxnactiveconss;
4933 }
4934 
4935 /** gets initial number of active constraints of constraint handler */
4937  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4938  )
4939 {
4940  assert(conshdlr != NULL);
4941 
4942  return conshdlr->startnactiveconss;
4943 }
4944 
4945 /** gets number of variables fixed in presolving method of constraint handler */
4947  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4948  )
4949 {
4950  assert(conshdlr != NULL);
4951 
4952  return conshdlr->nfixedvars;
4953 }
4954 
4955 /** gets number of variables aggregated in presolving method of constraint handler */
4957  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4958  )
4959 {
4960  assert(conshdlr != NULL);
4961 
4962  return conshdlr->naggrvars;
4963 }
4964 
4965 /** gets number of variable types changed in presolving method of constraint handler */
4967  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4968  )
4969 {
4970  assert(conshdlr != NULL);
4971 
4972  return conshdlr->nchgvartypes;
4973 }
4974 
4975 /** gets number of bounds changed in presolving method of constraint handler */
4977  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4978  )
4979 {
4980  assert(conshdlr != NULL);
4981 
4982  return conshdlr->nchgbds;
4983 }
4984 
4985 /** gets number of holes added to domains of variables in presolving method of constraint handler */
4987  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4988  )
4989 {
4990  assert(conshdlr != NULL);
4991 
4992  return conshdlr->naddholes;
4993 }
4994 
4995 /** gets number of constraints deleted in presolving method of constraint handler */
4997  SCIP_CONSHDLR* conshdlr /**< constraint handler */
4998  )
4999 {
5000  assert(conshdlr != NULL);
5001 
5002  return conshdlr->ndelconss;
5003 }
5004 
5005 /** gets number of constraints added in presolving method of constraint handler */
5007  SCIP_CONSHDLR* conshdlr /**< constraint handler */
5008  )
5009 {
5010  assert(conshdlr != NULL);
5011 
5012  return conshdlr->naddconss;
5013 }
5014 
5015 /** gets number of constraints upgraded in presolving method of constraint handler */
5017  SCIP_CONSHDLR* conshdlr /**< constraint handler */
5018  )
5019 {
5020  assert(conshdlr != NULL);
5021 
5022  return conshdlr->nupgdconss;
5023 }
5024 
5025 /** gets number of coefficients changed in presolving method of constraint handler */
5027  SCIP_CONSHDLR* conshdlr /**< constraint handler */
5028  )
5029 {
5030  assert(conshdlr != NULL);
5031 
5032  return conshdlr->nchgcoefs;
5033 }
5034 
5035 /** gets number of constraint sides changed in presolving method of constraint handler */
5037  SCIP_CONSHDLR* conshdlr /**< constraint handler */
5038  )
5039 {
5040  assert(conshdlr != NULL);
5041 
5042  return conshdlr->nchgsides;
5043 }
5044 
5045 /** gets number of times the presolving method of the constraint handler was called and tried to find reductions */
5047  SCIP_CONSHDLR* conshdlr /**< constraint handler */
5048  )
5049 {
5050  assert(conshdlr != NULL);
5051 
5052  return conshdlr->npresolcalls;
5053 }
5054 
5055 /** gets separation priority of constraint handler */
5057  SCIP_CONSHDLR* conshdlr /**< constraint handler */
5058  )
5059 {
5060  assert(conshdlr != NULL);
5061 
5062  return conshdlr->sepapriority;
5063 }
5064 
5065 /** gets enforcing priority of constraint handler */
5067  SCIP_CONSHDLR* conshdlr /**< constraint handler */
5068  )
5069 {
5070  assert(conshdlr != NULL);
5071 
5072  return conshdlr->enfopriority;
5073 }
5074 
5075 /** gets checking priority of constraint handler */
5077  SCIP_CONSHDLR* conshdlr /**< constraint handler */
5078  )
5079 {
5080  assert(conshdlr != NULL);
5081 
5082  return conshdlr->checkpriority;
5083 }
5084 
5085 /** gets separation frequency of constraint handler */
5087  SCIP_CONSHDLR* conshdlr /**< constraint handler */
5088  )
5089 {
5090  assert(conshdlr != NULL);
5091 
5092  return conshdlr->sepafreq;
5093 }
5094 
5095 /** gets propagation frequency of constraint handler */
5097  SCIP_CONSHDLR* conshdlr /**< constraint handler */
5098  )
5099 {
5100  assert(conshdlr != NULL);
5101 
5102  return conshdlr->propfreq;
5103 }
5104 
5105 /** gets frequency of constraint handler for eager evaluations in separation, propagation and enforcement */
5107  SCIP_CONSHDLR* conshdlr /**< constraint handler */
5108  )
5109 {
5110  assert(conshdlr != NULL);
5111 
5112  return conshdlr->eagerfreq;
5113 }
5114 
5115 /** needs constraint handler a constraint to be called? */
5117  SCIP_CONSHDLR* conshdlr /**< constraint handler */
5118  )
5119 {
5120  assert(conshdlr != NULL);
5121 
5122  return conshdlr->needscons;
5123 }
5124 
5125 /** does the constraint handler perform presolving? */
5127  SCIP_CONSHDLR* conshdlr /**< constraint handler */
5128  )
5129 {
5130  assert(conshdlr != NULL);
5131 
5132  return (conshdlr->conspresol != NULL);
5133 }
5134 
5135 /** should separation method be delayed, if other separators found cuts? */
5137  SCIP_CONSHDLR* conshdlr /**< constraint handler */
5138  )
5139 {
5140  assert(conshdlr != NULL);
5141 
5142  return conshdlr->delaysepa;
5143 }
5144 
5145 /** should propagation method be delayed, if other propagators found reductions? */
5147  SCIP_CONSHDLR* conshdlr /**< constraint handler */
5148  )
5149 {
5150  assert(conshdlr != NULL);
5151 
5152  return conshdlr->delayprop;
5153 }
5154 
5155 /** was LP separation method delayed at the last call? */
5157  SCIP_CONSHDLR* conshdlr /**< constraint handler */
5158  )
5159 {
5160  assert(conshdlr != NULL);
5161 
5162  return conshdlr->sepalpwasdelayed;
5163 }
5164 
5165 /** was primal solution separation method delayed at the last call? */
5167  SCIP_CONSHDLR* conshdlr /**< constraint handler */
5168  )
5169 {
5170  assert(conshdlr != NULL);
5171 
5172  return conshdlr->sepasolwasdelayed;
5173 }
5174 
5175 /** was propagation method delayed at the last call? */
5177  SCIP_CONSHDLR* conshdlr /**< constraint handler */
5178  )
5179 {
5180  assert(conshdlr != NULL);
5181 
5182  return conshdlr->propwasdelayed;
5183 }
5184 
5185 /** is constraint handler initialized? */
5187  SCIP_CONSHDLR* conshdlr /**< constraint handler */
5188  )
5189 {
5190  assert(conshdlr != NULL);
5191 
5192  return conshdlr->initialized;
5193 }
5194 
5195 /** does the constraint handler have a copy function? */
5197  SCIP_CONSHDLR* conshdlr /**< constraint handler */
5198  )
5199 {
5200  assert(conshdlr != NULL);
5201 
5202  return (conshdlr->conshdlrcopy != NULL);
5203 }
5204 
5205 /** returns the timing mask of the propagation method of the constraint handler */
5207  SCIP_CONSHDLR* conshdlr /**< constraint handler */
5208  )
5209 {
5210  assert(conshdlr != NULL);
5211 
5212  return conshdlr->proptiming;
5213 }
5214 
5215 /** sets the timing mask of the propagation method of the constraint handler */
5217  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
5218  SCIP_PROPTIMING proptiming /**< timing mask to be set */
5219  )
5220 {
5221  assert(conshdlr != NULL);
5222 
5223  conshdlr->proptiming = proptiming;
5224 }
5225 
5226 
5227 /** returns the timing mask of the presolving method of the constraint handler */
5229  SCIP_CONSHDLR* conshdlr /**< constraint handler */
5230  )
5231 {
5232  assert(conshdlr != NULL);
5233 
5234  return conshdlr->presoltiming;
5235 }
5236 
5237 /** sets the timing mask of the presolving method of the constraint handler */
5239  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
5240  SCIP_PRESOLTIMING presoltiming /** timing mask to be set */
5241  )
5242 {
5243  assert(conshdlr != NULL);
5244 
5245  conshdlr->presoltiming = presoltiming;
5246 }
5247 
5248 
5249 /*
5250  * Constraint set change methods
5251  */
5252 
5253 /** creates empty constraint set change data */
5254 static
5256  SCIP_CONSSETCHG** conssetchg, /**< pointer to constraint set change data */
5257  BMS_BLKMEM* blkmem /**< block memory */
5258  )
5259 {
5260  assert(conssetchg != NULL);
5261  assert(blkmem != NULL);
5262 
5263  SCIP_ALLOC( BMSallocBlockMemory(blkmem, conssetchg) );
5264  (*conssetchg)->addedconss = NULL;
5265  (*conssetchg)->disabledconss = NULL;
5266  (*conssetchg)->addedconsssize = 0;
5267  (*conssetchg)->naddedconss = 0;
5268  (*conssetchg)->disabledconsssize = 0;
5269  (*conssetchg)->ndisabledconss = 0;
5270 
5271  return SCIP_OKAY;
5272 }
5273 
5274 /** releases all constraints of the constraint set change data */
5275 static
5277  SCIP_CONSSETCHG* conssetchg, /**< constraint set change data */
5278  BMS_BLKMEM* blkmem, /**< block memory */
5279  SCIP_SET* set /**< global SCIP settings */
5280  )
5281 {
5282  int i;
5283 
5284  assert(conssetchg != NULL);
5285 
5286  /* release constraints */
5287  for( i = 0; i < conssetchg->naddedconss; ++i )
5288  {
5289  if( conssetchg->addedconss[i] != NULL )
5290  {
5291  SCIP_CALL( SCIPconsRelease(&conssetchg->addedconss[i], blkmem, set) );
5292  }
5293  }
5294  for( i = 0; i < conssetchg->ndisabledconss; ++i )
5295  {
5296  if( conssetchg->disabledconss[i] != NULL )
5297  {
5298  SCIP_CALL( SCIPconsRelease(&conssetchg->disabledconss[i], blkmem, set) );
5299  }
5300  }
5301 
5302  return SCIP_OKAY;
5303 }
5304 
5305 /** frees constraint set change data and releases all included constraints */
5307  SCIP_CONSSETCHG** conssetchg, /**< pointer to constraint set change */
5308  BMS_BLKMEM* blkmem, /**< block memory */
5309  SCIP_SET* set /**< global SCIP settings */
5310  )
5311 {
5312  assert(conssetchg != NULL);
5313  assert(blkmem != NULL);
5314 
5315  if( *conssetchg != NULL )
5316  {
5317  /* release constraints */
5318  SCIP_CALL( conssetchgRelease(*conssetchg, blkmem, set) );
5319 
5320  /* free memory */
5321  BMSfreeBlockMemoryArrayNull(blkmem, &(*conssetchg)->addedconss, (*conssetchg)->addedconsssize);
5322  BMSfreeBlockMemoryArrayNull(blkmem, &(*conssetchg)->disabledconss, (*conssetchg)->disabledconsssize);
5323  BMSfreeBlockMemory(blkmem, conssetchg);
5324  }
5325 
5326  return SCIP_OKAY;
5327 }
5328 
5329 /** ensures, that addedconss array can store at least num entries */
5330 static
5332  SCIP_CONSSETCHG* conssetchg, /**< constraint set change data structure */
5333  BMS_BLKMEM* blkmem, /**< block memory */
5334  SCIP_SET* set, /**< global SCIP settings */
5335  int num /**< minimum number of entries to store */
5336  )
5337 {
5338  assert(conssetchg != NULL);
5339 
5340  if( num > conssetchg->addedconsssize )
5341  {
5342  int newsize;
5343 
5344  newsize = SCIPsetCalcMemGrowSize(set, num);
5345  SCIP_ALLOC( BMSreallocBlockMemoryArray(blkmem, &conssetchg->addedconss, conssetchg->addedconsssize, newsize) );
5346  conssetchg->addedconsssize = newsize;
5347  }
5348  assert(num <= conssetchg->addedconsssize);
5349 
5350  return SCIP_OKAY;
5351 }
5352 
5353 /** ensures, that disabledconss array can store at least num entries */
5354 static
5356  SCIP_CONSSETCHG* conssetchg, /**< constraint set change data structure */
5357  BMS_BLKMEM* blkmem, /**< block memory */
5358  SCIP_SET* set, /**< global SCIP settings */
5359  int num /**< minimum number of entries to store */
5360  )
5361 {
5362  assert(conssetchg != NULL);
5363 
5364  if( num > conssetchg->disabledconsssize )
5365  {
5366  int newsize;
5367 
5368  newsize = SCIPsetCalcMemGrowSize(set, num);
5369  SCIP_ALLOC( BMSreallocBlockMemoryArray(blkmem, &conssetchg->disabledconss, conssetchg->disabledconsssize, newsize) );
5370  conssetchg->disabledconsssize = newsize;
5371  }
5372  assert(num <= conssetchg->disabledconsssize);
5373 
5374  return SCIP_OKAY;
5375 }
5376 
5377 /** adds constraint addition to constraint set changes, and captures constraint; activates constraint if the
5378  * constraint set change data is currently active
5379  */
5381  SCIP_CONSSETCHG** conssetchg, /**< pointer to constraint set change data structure */
5382  BMS_BLKMEM* blkmem, /**< block memory */
5383  SCIP_SET* set, /**< global SCIP settings */
5384  SCIP_STAT* stat, /**< dynamic problem statistics */
5385  SCIP_CONS* cons, /**< added constraint */
5386  int depth, /**< depth of constraint set change's node */
5387  SCIP_Bool focusnode, /**< does the constraint set change belong to the focus node? */
5388  SCIP_Bool active /**< is the constraint set change currently active? */
5389  )
5390 {
5391  assert(conssetchg != NULL);
5392  assert(cons != NULL);
5393 
5394  /* if constraint set change doesn't exist, create it */
5395  if( *conssetchg == NULL )
5396  {
5397  SCIP_CALL( conssetchgCreate(conssetchg, blkmem) );
5398  }
5399 
5400  /* add constraint to the addedconss array */
5401  SCIP_CALL( conssetchgEnsureAddedconssSize(*conssetchg, blkmem, set, (*conssetchg)->naddedconss+1) );
5402  (*conssetchg)->addedconss[(*conssetchg)->naddedconss] = cons;
5403  (*conssetchg)->naddedconss++;
5404 
5405  /* undelete constraint, if it was globally deleted in the past */
5406  cons->deleted = FALSE;
5407 
5408  /* capture constraint */
5409  SCIPconsCapture(cons);
5410 
5411  /* activate constraint, if node is active */
5412  if( active && !SCIPconsIsActive(cons) )
5413  {
5414  SCIP_CALL( SCIPconsActivate(cons, set, stat, depth, focusnode) );
5415  assert(SCIPconsIsActive(cons));
5416 
5417  /* remember, that this constraint set change data was responsible for the constraint's addition */
5418  cons->addconssetchg = *conssetchg;
5419  cons->addarraypos = (*conssetchg)->naddedconss-1;
5420  }
5421 
5422  return SCIP_OKAY;
5423 }
5424 
5425 /** adds constraint disabling to constraint set changes, and captures constraint */
5427  SCIP_CONSSETCHG** conssetchg, /**< pointer to constraint set change data structure */
5428  BMS_BLKMEM* blkmem, /**< block memory */
5429  SCIP_SET* set, /**< global SCIP settings */
5430  SCIP_CONS* cons /**< disabled constraint */
5431  )
5432 {
5433  assert(conssetchg != NULL);
5434  assert(cons != NULL);
5435 
5436  /* if constraint set change doesn't exist, create it */
5437  if( *conssetchg == NULL )
5438  {
5439  SCIP_CALL( conssetchgCreate(conssetchg, blkmem) );
5440  }
5441 
5442  /* add constraint to the disabledconss array */
5443  SCIP_CALL( conssetchgEnsureDisabledconssSize(*conssetchg, blkmem, set, (*conssetchg)->ndisabledconss+1) );
5444  (*conssetchg)->disabledconss[(*conssetchg)->ndisabledconss] = cons;
5445  (*conssetchg)->ndisabledconss++;
5446 
5447  /* capture constraint */
5448  SCIPconsCapture(cons);
5449 
5450  return SCIP_OKAY;
5451 }
5452 
5453 /** deactivates, deletes, and releases constraint from the addedconss array of the constraint set change data */
5454 static
5456  SCIP_CONSSETCHG* conssetchg, /**< constraint set change to delete constraint from */
5457  BMS_BLKMEM* blkmem, /**< block memory */
5458  SCIP_SET* set, /**< global SCIP settings */
5459  int arraypos /**< position of constraint in disabledconss array */
5460  )
5461 {
5462  SCIP_CONS* cons;
5463 
5464  assert(conssetchg != NULL);
5465  assert(conssetchg->addedconss != NULL);
5466  assert(0 <= arraypos && arraypos < conssetchg->naddedconss);
5467 
5468  cons = conssetchg->addedconss[arraypos];
5469  assert(cons != NULL);
5470 
5471  SCIPsetDebugMsg(set, "delete added constraint <%s> at position %d from constraint set change data\n", cons->name, arraypos);
5472 
5473  /* remove the link to the constraint set change data */
5474  if( cons->addconssetchg == conssetchg )
5475  {
5476  cons->addconssetchg = NULL;
5477  cons->addarraypos = -1;
5478  }
5479 
5480  /* release constraint */
5481  SCIP_CALL( SCIPconsRelease(&conssetchg->addedconss[arraypos], blkmem, set) );
5482 
5483  /* we want to keep the order of the constraint additions: move all subsequent constraints one slot to the front */
5484  for( ; arraypos < conssetchg->naddedconss-1; ++arraypos )
5485  {
5486  conssetchg->addedconss[arraypos] = conssetchg->addedconss[arraypos+1];
5487  assert(conssetchg->addedconss[arraypos] != NULL);
5488  if( conssetchg->addedconss[arraypos]->addconssetchg == conssetchg )
5489  {
5490  assert(conssetchg->addedconss[arraypos]->addarraypos == arraypos+1);
5491  conssetchg->addedconss[arraypos]->addarraypos = arraypos;
5492  }
5493  }
5494  conssetchg->naddedconss--;
5495 
5496  return SCIP_OKAY;
5497 }
5498 
5499 /** deletes and releases deactivated constraint from the disabledconss array of the constraint set change data */
5500 static
5502  SCIP_CONSSETCHG* conssetchg, /**< constraint set change to apply */
5503  BMS_BLKMEM* blkmem, /**< block memory */
5504  SCIP_SET* set, /**< global SCIP settings */
5505  int arraypos /**< position of constraint in disabledconss array */
5506  )
5507 {
5508  assert(conssetchg != NULL);
5509  assert(0 <= arraypos && arraypos < conssetchg->ndisabledconss);
5510  assert(conssetchg->disabledconss[arraypos] != NULL);
5511 
5512  SCIPsetDebugMsg(set, "delete disabled constraint <%s> at position %d from constraint set change data\n",
5513  conssetchg->disabledconss[arraypos]->name, arraypos);
5514 
5515  /* release constraint */
5516  SCIP_CALL( SCIPconsRelease(&conssetchg->disabledconss[arraypos], blkmem, set) );
5517 
5518  /* we want to keep the order of the constraint disablings: move all subsequent constraints one slot to the front */
5519  for( ; arraypos < conssetchg->ndisabledconss-1; ++arraypos )
5520  {
5521  conssetchg->disabledconss[arraypos] = conssetchg->disabledconss[arraypos+1];
5522  assert(conssetchg->disabledconss[arraypos] != NULL);
5523  }
5524  conssetchg->ndisabledconss--;
5525 
5526  return SCIP_OKAY;
5527 }
5528 
5529 /** gets added constraints data for a constraint set change */
5531  SCIP_CONSSETCHG* conssetchg, /**< constraint set change to get data from */
5532  SCIP_CONS*** conss, /**< reference to constraints array added in the conssetchg, or NULL */
5533  int* nconss /**< reference to store the size of the constraints array, or NULL */
5534  )
5535 {
5536  assert(conssetchg != NULL);
5537  if( conss != NULL )
5538  *conss = conssetchg->addedconss;
5539  if( nconss != NULL )
5540  *nconss = conssetchg->naddedconss;
5541 }
5542 
5543 /** applies constraint set change */
5545  SCIP_CONSSETCHG* conssetchg, /**< constraint set change to apply */
5546  BMS_BLKMEM* blkmem, /**< block memory */
5547  SCIP_SET* set, /**< global SCIP settings */
5548  SCIP_STAT* stat, /**< dynamic problem statistics */
5549  int depth, /**< depth of constraint set change's node */
5550  SCIP_Bool focusnode /**< does the constraint set change belong to the focus node? */
5551  )
5552 {
5553  SCIP_CONS* cons;
5554  int i;
5555 
5556  if( conssetchg == NULL )
5557  return SCIP_OKAY;
5558 
5559  SCIPsetDebugMsg(set, "applying constraint set changes at %p: %d constraint additions, %d constraint disablings\n",
5560  (void*)conssetchg, conssetchg->naddedconss, conssetchg->ndisabledconss);
5561 
5562  /* apply constraint additions */
5563  i = 0;
5564  while( i < conssetchg->naddedconss )
5565  {
5566  cons = conssetchg->addedconss[i];
5567  assert(cons != NULL);
5568  assert(!cons->update);
5569 
5570  /* if constraint is already active, or if constraint is globally deleted, it can be removed from addedconss array */
5571  if( cons->active || cons->deleted )
5572  {
5573  /* delete constraint from addedcons array, the empty slot is now used by the next constraint,
5574  * and naddedconss was decreased, so do not increase i
5575  */
5576  SCIP_CALL( conssetchgDelAddedCons(conssetchg, blkmem, set, i) );
5577  }
5578  else
5579  {
5580  assert(cons->addconssetchg == NULL);
5581  assert(cons->addarraypos == -1);
5582 
5583  /* activate constraint */
5584  SCIP_CALL( SCIPconsActivate(cons, set, stat, depth, focusnode) );
5585  assert(cons->active);
5586  assert(!cons->update);
5587 
5588  /* remember, that this constraint set change data was responsible for the constraint's addition */
5589  cons->addconssetchg = conssetchg;
5590  cons->addarraypos = i;
5591 
5592  ++i; /* handle the next constraint */
5593  }
5594  }
5595 
5596  /* apply constraint disablings */
5597  i = 0;
5598  while( i < conssetchg->ndisabledconss )
5599  {
5600  cons = conssetchg->disabledconss[i];
5601  assert(cons != NULL);
5602  assert(!cons->update);
5603 
5604  /* if the constraint is disabled, we can permanently remove it from the disabledconss array */
5605  if( !cons->enabled )
5606  {
5607  SCIPsetDebugMsg(set, "constraint <%s> of handler <%s> was deactivated -> remove it from disabledconss array\n",
5608  cons->name, cons->conshdlr->name);
5609 
5610  /* release and remove constraint from the disabledconss array, the empty slot is now used by the next constraint
5611  * and ndisabledconss was decreased, so do not increase i
5612  */
5613  SCIP_CALL( conssetchgDelDisabledCons(conssetchg, blkmem, set, i) );
5614  }
5615  else
5616  {
5617  assert(cons->addarraypos >= 0);
5618  assert(!cons->deleted); /* deleted constraints must not be enabled! */
5619  SCIP_CALL( SCIPconsDisable(conssetchg->disabledconss[i], set, stat) );
5620  assert(!cons->update);
5621  assert(!cons->enabled);
5622 
5623  ++i; /* handle the next constraint */
5624  }
5625  }
5626 
5627  return SCIP_OKAY;
5628 }
5629 
5630 /** undoes constraint set change */
5632  SCIP_CONSSETCHG* conssetchg, /**< constraint set change to undo */
5633  BMS_BLKMEM* blkmem, /**< block memory */
5634  SCIP_SET* set, /**< global SCIP settings */
5635  SCIP_STAT* stat /**< dynamic problem statistics */
5636  )
5637 {
5638  SCIP_CONS* cons;
5639  int i;
5640 
5641  if( conssetchg == NULL )
5642  return SCIP_OKAY;
5643 
5644  SCIPsetDebugMsg(set, "undoing constraint set changes at %p: %d constraint additions, %d constraint disablings\n",
5645  (void*)conssetchg, conssetchg->naddedconss, conssetchg->ndisabledconss);
5646 
5647  /* undo constraint disablings */
5648  for( i = conssetchg->ndisabledconss-1; i >= 0; --i )
5649  {
5650  cons = conssetchg->disabledconss[i];
5651  assert(cons != NULL);
5652  assert(!cons->update);
5653 
5654  /* If the constraint is inactive, we can permanently remove it from the disabledconss array. It was deactivated
5655  * in the subtree of the current node but not reactivated on the switching way back to the current node, which
5656  * means, the deactivation was more global (i.e. valid on a higher level node) than the current node and the
5657  * disabling at the current node doesn't have any effect anymore.
5658  * If the constraint is already enabled, we need not to do anything. This may happen on a path A -> B,
5659  * if the constraint is disabled at node B, and while processing the subtree of B, it is also disabled at
5660  * the more global node A. Then on the switching path back to A, the constraint is enabled at node B (which is
5661  * actually wrong, since it now should be disabled in the whole subtree of A, but we cannot know this), and
5662  * again enabled at node A (where enabling is ignored). If afterwards, a subnode of B is processed, the
5663  * switching disables the constraint in node A, and the disabling is then removed from node B.
5664  */
5665  if( !cons->active )
5666  {
5667  SCIPsetDebugMsg(set, "constraint <%s> of handler <%s> was deactivated -> remove it from disabledconss array\n",
5668  cons->name, cons->conshdlr->name);
5669 
5670  /* release and remove constraint from the disabledconss array */
5671  SCIP_CALL( conssetchgDelDisabledCons(conssetchg, blkmem, set, i) );
5672  }
5673  else if( !cons->enabled )
5674  {
5675  assert(cons->addarraypos >= 0);
5676  assert(!cons->deleted); /* deleted constraints must not be active! */
5677  SCIP_CALL( SCIPconsEnable(cons, set, stat) );
5678  assert(!cons->update);
5679  assert(!cons->active || cons->enabled);
5680  }
5681  }
5682 
5683  /* undo constraint additions */
5684  for( i = conssetchg->naddedconss-1; i >= 0; --i )
5685  {
5686  cons = conssetchg->addedconss[i];
5687  assert(cons != NULL);
5688  assert(!cons->update);
5689 
5690  /* If the constraint is already deactivated, we need not to do anything. This may happen on a path A -> B,
5691  * if the constraint is added at node B, and while processing the subtree of B, it is also added at
5692  * the more global node A. Then on the switching path back to A, the node is deactivated at node B (which is
5693  * actually wrong, since it now should be active in the whole subtree of A, but we cannot know this), and
5694  * again deactivated at node A (where deactivation is ignored). If afterwards, a subnode of B is processed, the
5695  * switching activates the constraint in node A, and the activation is then removed from node B.
5696  */
5697  if( cons->active )
5698  {
5699  assert(cons->addconssetchg == conssetchg);
5700  assert(cons->addarraypos == i);
5701 
5702  /* deactivate constraint */
5703  SCIP_CALL( SCIPconsDeactivate(cons, set, stat) );
5704 
5705  /* unlink the constraint and the constraint set change */
5706  cons->addconssetchg = NULL;
5707  cons->addarraypos = -1;
5708  }
5709  assert(!cons->active);
5710  assert(!cons->update);
5711  }
5712 
5713  return SCIP_OKAY;
5714 }
5715 
5716 /** applies constraint set change to the global problem and deletes the constraint set change data */
5718  SCIP_CONSSETCHG** conssetchg, /**< pointer to constraint set change data */
5719  BMS_BLKMEM* blkmem, /**< block memory */
5720  SCIP_SET* set, /**< global SCIP settings */
5721  SCIP_STAT* stat, /**< dynamic problem statistics */
5722  SCIP_PROB* prob, /**< problem data */
5723  SCIP_REOPT* reopt /**< reoptimization data */
5724  )
5725 {
5726  SCIP_CONS* cons;
5727  int i;
5728 
5729  assert(conssetchg != NULL);
5730 
5731  /* nothing to do on empty constraint set change data */
5732  if( *conssetchg == NULL )
5733  return SCIP_OKAY;
5734 
5735  SCIPsetDebugMsg(set, "moving constraint set changes at %p to global problem: %d constraint additions, %d constraint disablings\n",
5736  (void*)*conssetchg, (*conssetchg)->naddedconss, (*conssetchg)->ndisabledconss);
5737 
5738  /* apply constraint additions to the global problem (loop backwards, because then conssetchgDelAddedCons() is
5739  * more efficient)
5740  */
5741  for( i = (*conssetchg)->naddedconss-1; i >= 0; --i )
5742  {
5743  cons = (*conssetchg)->addedconss[i];
5744  assert(cons != NULL);
5745  assert(!cons->update);
5746 
5747  /* only move constraints that are not sticking at the current node */
5748  if( !SCIPconsIsStickingAtNode(cons) )
5749  {
5750  /* because we first have to delete the constraint, we have to capture it in order to not loose it */
5751  SCIPconsCapture(cons);
5752 
5753  /* delete constraint addition from constraint set change data */
5754  SCIP_CALL( conssetchgDelAddedCons(*conssetchg, blkmem, set, i) );
5755 
5756  /* don't move deleted constraints to the global problem */
5757  if( !cons->deleted )
5758  {
5759  SCIP_CALL( SCIPprobAddCons(prob, set, stat, cons) );
5760  }
5761 
5762  /* release constraint */
5763  SCIP_CALL( SCIPconsRelease(&cons, blkmem, set) );
5764  }
5765  }
5766 
5767  /* apply constraint disablings to the global problem (loop backwards, because then conssetchgDelDisabledCons() is
5768  * more efficient)
5769  */
5770  for( i = (*conssetchg)->ndisabledconss-1; i >= 0; --i )
5771  {
5772  cons = (*conssetchg)->disabledconss[i];
5773  assert(cons != NULL);
5774  assert(!cons->update);
5775 
5776  /* only delete constraints that are not sticking at the current node */
5777  if( !SCIPconsIsStickingAtNode(cons) )
5778  {
5779  /* globally delete constraint */
5780  if( !cons->deleted )
5781  {
5782  SCIP_CALL( SCIPconsDelete(cons, blkmem, set, stat, prob, reopt) );
5783  }
5784 
5785  /* release and remove constraint from the disabledconss array */
5786  SCIP_CALL( conssetchgDelDisabledCons(*conssetchg, blkmem, set, i) );
5787  }
5788  }
5789 
5790  if( (*conssetchg)->naddedconss == 0 && (*conssetchg)->ndisabledconss == 0 )
5791  {
5792  /* free empty constraint set change data */
5793  SCIP_CALL( SCIPconssetchgFree(conssetchg, blkmem, set) );
5794  }
5795 
5796  return SCIP_OKAY;
5797 }
5798 
5799 
5800 
5801 
5802 /*
5803  * Constraint methods
5804  */
5805 
5806 /** creates and captures a constraint, and inserts it into the conss array of its constraint handler
5807  *
5808  * @warning If a constraint is marked to be checked for feasibility but not to be enforced, a LP or pseudo solution
5809  * may be declared feasible even if it violates this particular constraint.
5810  * This constellation should only be used, if no LP or pseudo solution can violate the constraint -- e.g. if a
5811  * local constraint is redundant due to the variable's local bounds.
5812  */
5814  SCIP_CONS** cons, /**< pointer to constraint */
5815  BMS_BLKMEM* blkmem, /**< block memory */
5816  SCIP_SET* set, /**< global SCIP settings */
5817  const char* name, /**< name of constraint */
5818  SCIP_CONSHDLR* conshdlr, /**< constraint handler for this constraint */
5819  SCIP_CONSDATA* consdata, /**< data for this specific constraint */
5820  SCIP_Bool initial, /**< should the LP relaxation of constraint be in the initial LP?
5821  * Usually set to TRUE. Set to FALSE for 'lazy constraints'. */
5822  SCIP_Bool separate, /**< should the constraint be separated during LP processing?
5823  * Usually set to TRUE. */
5824  SCIP_Bool enforce, /**< should the constraint be enforced during node processing?
5825  * TRUE for model constraints, FALSE for additional, redundant constraints. */
5826  SCIP_Bool check, /**< should the constraint be checked for feasibility?
5827  * TRUE for model constraints, FALSE for additional, redundant constraints. */
5828  SCIP_Bool propagate, /**< should the constraint be propagated during node processing?
5829  * Usually set to TRUE. */
5830  SCIP_Bool local, /**< is constraint only valid locally?
5831  * Usually set to FALSE. Has to be set to TRUE, e.g., for branching constraints. */
5832  SCIP_Bool modifiable, /**< is constraint modifiable (subject to column generation)?
5833  * Usually set to FALSE. In column generation applications, set to TRUE if pricing
5834  * adds coefficients to this constraint. */
5835  SCIP_Bool dynamic, /**< is constraint subject to aging?
5836  * Usually set to FALSE. Set to TRUE for own cuts which
5837  * are separated as constraints. */
5838  SCIP_Bool removable, /**< should the relaxation be removed from the LP due to aging or cleanup?
5839  * Usually set to FALSE. Set to TRUE for 'lazy constraints' and 'user cuts'. */
5840  SCIP_Bool stickingatnode, /**< should the constraint always be kept at the node where it was added, even
5841  * if it may be moved to a more global node?
5842  * Usually set to FALSE. Set to TRUE to for constraints that represent node data. */
5843  SCIP_Bool original, /**< is constraint belonging to the original problem? */
5844  SCIP_Bool deleteconsdata /**< has the constraint data to be deleted if constraint is freed? */
5845  )
5846 {
5847  int i;
5848 
5849  assert(cons != NULL);
5850  assert(blkmem != NULL);
5851  assert(set != NULL);
5852  assert(name != NULL);
5853  assert(conshdlr != NULL);
5854  assert(!original || deleteconsdata);
5855 
5856  /* create constraint data */
5857  SCIP_ALLOC( BMSallocBlockMemory(blkmem, cons) );
5858  SCIP_ALLOC( BMSduplicateBlockMemoryArray(blkmem, &(*cons)->name, name, strlen(name)+1) );
5859 #ifndef NDEBUG
5860  (*cons)->scip = set->scip;
5861 #endif
5862  (*cons)->conshdlr = conshdlr;
5863  (*cons)->consdata = consdata;
5864  (*cons)->transorigcons = NULL;
5865  (*cons)->addconssetchg = NULL;
5866  (*cons)->addarraypos = -1;
5867  (*cons)->consspos = -1;
5868  (*cons)->initconsspos = -1;
5869  (*cons)->sepaconsspos = -1;
5870  (*cons)->enfoconsspos = -1;
5871  (*cons)->checkconsspos = -1;
5872  (*cons)->propconsspos = -1;
5873  (*cons)->activedepth = -2;
5874  (*cons)->validdepth = (local ? -1 : 0);
5875  (*cons)->age = 0.0;
5876  (*cons)->nuses = 0;
5877  (*cons)->nupgradelocks = 0;
5878  (*cons)->initial = initial;
5879  (*cons)->separate = separate;
5880  (*cons)->enforce = enforce;
5881  (*cons)->check = check;
5882  (*cons)->propagate = propagate;
5883  (*cons)->sepaenabled = separate;
5884  (*cons)->propenabled = propagate;
5885  (*cons)->local = local;
5886  (*cons)->modifiable = modifiable;
5887  (*cons)->dynamic = dynamic;
5888  (*cons)->removable = removable;
5889  (*cons)->stickingatnode = stickingatnode;
5890  (*cons)->original = original;
5891  (*cons)->deleteconsdata = deleteconsdata;
5892  (*cons)->active = FALSE;
5893  (*cons)->conflict = FALSE;
5894  (*cons)->enabled = FALSE;
5895  (*cons)->obsolete = FALSE;
5896  (*cons)->markpropagate = TRUE;
5897  (*cons)->deleted = FALSE;
5898  (*cons)->update = FALSE;
5899  (*cons)->updateinsert = FALSE;
5900  (*cons)->updateactivate = FALSE;
5901  (*cons)->updatedeactivate = FALSE;
5902  (*cons)->updateenable = FALSE;
5903  (*cons)->updatedisable = FALSE;
5904  (*cons)->updatesepaenable = FALSE;
5905  (*cons)->updatesepadisable = FALSE;
5906  (*cons)->updatepropenable = FALSE;
5907  (*cons)->updatepropdisable = FALSE;
5908  (*cons)->updateobsolete = FALSE;
5909  (*cons)->updatemarkpropagate = FALSE;
5910  (*cons)->updateunmarkpropagate = FALSE;
5911  (*cons)->updatefree = FALSE;
5912  (*cons)->updateactfocus = FALSE;
5913 
5914  for( i = 0; i < NLOCKTYPES; i++ )
5915  {
5916  (*cons)->nlockspos[i] = 0;
5917  (*cons)->nlocksneg[i] = 0;
5918  }
5919 
5920  /* capture constraint */
5921  SCIPconsCapture(*cons);
5922 
5923  /* insert the constraint as inactive constraint into the transformed constraints array */
5924  if( !original )
5925  {
5926  /* check, if inserting constraint should be delayed */
5927  if( conshdlrAreUpdatesDelayed(conshdlr) )
5928  {
5929  SCIPsetDebugMsg(set, " -> delaying insertion of constraint <%s>\n", (*cons)->name);
5930  (*cons)->updateinsert = TRUE;
5931  SCIP_CALL( conshdlrAddUpdateCons((*cons)->conshdlr, set, *cons) );
5932  assert((*cons)->update);
5933  assert((*cons)->nuses == 2);
5934  }
5935  else
5936  {
5937  SCIP_CALL( conshdlrAddCons(conshdlr, set, *cons) );
5938  }
5939  }
5940 
5941  checkConssArrays(conshdlr);
5942 
5943  return SCIP_OKAY;
5944 }
5945 
5946 /** copies source constraint of source SCIP into the target constraint for the target SCIP, using the variable map for
5947  * mapping the variables of the source SCIP to the variables of the target SCIP; if the copying process was successful
5948  * a constraint is created and captured;
5949  *
5950  * @warning If a constraint is marked to be checked for feasibility but not to be enforced, an LP or pseudo solution
5951  * may be declared feasible even if it violates this particular constraint.
5952  * This constellation should only be used, if no LP or pseudo solution can violate the constraint -- e.g. if a
5953  * local constraint is redundant due to the variable's local bounds.
5954  */
5956  SCIP_CONS** cons, /**< pointer to store the created target constraint */
5957  SCIP_SET* set, /**< global SCIP settings of the target SCIP */
5958  const char* name, /**< name of constraint, or NULL if the name of the source constraint should be used */
5959  SCIP* sourcescip, /**< source SCIP data structure */
5960  SCIP_CONSHDLR* sourceconshdlr, /**< source constraint handler for this constraint */
5961  SCIP_CONS* sourcecons, /**< source constraint of the source SCIP */
5962  SCIP_HASHMAP* varmap, /**< a SCIP_HASHMAP mapping variables of the source SCIP to corresponding
5963  * variables of the target SCIP */
5964  SCIP_HASHMAP* consmap, /**< a hashmap to store the mapping of source constraints to the corresponding
5965  * target constraints, must not be NULL! */
5966  SCIP_Bool initial, /**< should the LP relaxation of constraint be in the initial LP? */
5967  SCIP_Bool separate, /**< should the constraint be separated during LP processing? */
5968  SCIP_Bool enforce, /**< should the constraint be enforced during node processing? */
5969  SCIP_Bool check, /**< should the constraint be checked for feasibility? */
5970  SCIP_Bool propagate, /**< should the constraint be propagated during node processing? */
5971  SCIP_Bool local, /**< is constraint only valid locally? */
5972  SCIP_Bool modifiable, /**< is constraint modifiable (subject to column generation)? */
5973  SCIP_Bool dynamic, /**< is constraint subject to aging? */
5974  SCIP_Bool removable, /**< should the relaxation be removed from the LP due to aging or cleanup? */
5975  SCIP_Bool stickingatnode, /**< should the constraint always be kept at the node where it was added, even
5976  * if it may be moved to a more global node? */
5977  SCIP_Bool global, /**< create a global or a local copy? */
5978  SCIP_Bool* valid /**< pointer to store whether the copying was valid or not */
5979  )
5980 {
5981  assert(cons != NULL);
5982  assert(set != NULL);
5983  assert(sourcescip != NULL);
5984  assert(sourceconshdlr != NULL);
5985  assert(sourcecons != NULL);
5986  assert(varmap != NULL);
5987  assert(consmap != NULL);
5988  assert(valid != NULL);
5989 
5990  /* if constraint handler does not support copying, success will return false. Constraints handlers have to actively set this to true. */
5991  (*valid) = FALSE;
5992 
5993  if( sourceconshdlr->conscopy != NULL )
5994  {
5995  SCIP_CALL( sourceconshdlr->conscopy(set->scip, cons, name, sourcescip, sourceconshdlr, sourcecons, varmap, consmap,
5996  initial, separate, enforce, check, propagate, local, modifiable, dynamic, removable, stickingatnode, global, valid) );
5997  }
5998 
5999  return SCIP_OKAY;
6000 }
6001 
6002 
6003 /** parses constraint information (in cip format) out of a string; if the parsing process was successful a constraint is
6004  * created, captured, and inserted into the conss array of its constraint handler.
6005  *
6006  * @warning If a constraint is marked to be checked for feasibility but not to be enforced, an LP or pseudo solution
6007  * may be declared feasible even if it violates this particular constraint.
6008  * This constellation should only be used, if no LP or pseudo solution can violate the constraint -- e.g. if a
6009  * local constraint is redundant due to the variable's local bounds.
6010  */
6012  SCIP_CONS** cons, /**< pointer to constraint */
6013  SCIP_SET* set, /**< global SCIP settings */
6014  SCIP_MESSAGEHDLR* messagehdlr, /**< message handler of target SCIP */
6015  const char* str, /**< string to parse for constraint */
6016  SCIP_Bool initial, /**< should the LP relaxation of constraint be in the initial LP?
6017  * Usually set to TRUE. Set to FALSE for 'lazy constraints'. */
6018  SCIP_Bool separate, /**< should the constraint be separated during LP processing?
6019  * Usually set to TRUE. */
6020  SCIP_Bool enforce, /**< should the constraint be enforced during node processing?
6021  * TRUE for model constraints, FALSE for additional, redundant constraints. */
6022  SCIP_Bool check, /**< should the constraint be checked for feasibility?
6023  * TRUE for model constraints, FALSE for additional, redundant constraints. */
6024  SCIP_Bool propagate, /**< should the constraint be propagated during node processing?
6025  * Usually set to TRUE. */
6026  SCIP_Bool local, /**< is constraint only valid locally?
6027  * Usually set to FALSE. Has to be set to TRUE, e.g., for branching constraints. */
6028  SCIP_Bool modifiable, /**< is constraint modifiable (subject to column generation)?
6029  * Usually set to FALSE. In column generation applications, set to TRUE if pricing
6030  * adds coefficients to this constraint. */
6031  SCIP_Bool dynamic, /**< is constraint subject to aging?
6032  * Usually set to FALSE. Set to TRUE for own cuts which
6033  * are separated as constraints. */
6034  SCIP_Bool removable, /**< should the relaxation be removed from the LP due to aging or cleanup?
6035  * Usually set to FALSE. Set to TRUE for 'lazy constraints' and 'user cuts'. */
6036  SCIP_Bool stickingatnode, /**< should the constraint always be kept at the node where it was added, even
6037  * if it may be moved to a more global node?
6038  * Usually set to FALSE. Set to TRUE to for constraints that represent node data. */
6039  SCIP_Bool* success /**< pointer store if the paring process was successful */
6040  )
6041 {
6042  SCIP_CONSHDLR* conshdlr;
6043  char conshdlrname[SCIP_MAXSTRLEN];
6044  char consname[SCIP_MAXSTRLEN];
6045  char* endptr;
6046 
6047  assert(cons != NULL);
6048  assert(set != NULL);
6049 
6050  (*success) = FALSE;
6051 
6052  /* scan constraint handler name */
6053  assert(str != NULL);
6054  SCIPstrCopySection(str, '[', ']', conshdlrname, SCIP_MAXSTRLEN, &endptr);
6055  if ( endptr == NULL || endptr == str )
6056  {
6057  SCIPmessagePrintWarning(messagehdlr, "Syntax error: Could not find constraint handler name.\n");
6058  return SCIP_OKAY;
6059  }
6060  assert(endptr != NULL);
6061  SCIPsetDebugMsg(set, "constraint handler name <%s>\n", conshdlrname);
6062 
6063  /* scan constraint name */
6064  SCIPstrCopySection(endptr, '<', '>', consname, SCIP_MAXSTRLEN, &endptr);
6065  if ( endptr == NULL || endptr == str )
6066  {
6067  SCIPmessagePrintWarning(messagehdlr, "Syntax error: Could not find constraint name.\n");
6068  return SCIP_OKAY;
6069  }
6070  assert(endptr != NULL);
6071  SCIPsetDebugMsg(set, "constraint name <%s>\n", consname);
6072 
6073  str = endptr;
6074 
6075  /* skip white space */
6076  while ( isspace((unsigned char)* str) )
6077  ++str;
6078 
6079  /* check for colon */
6080  if( *str != ':' )
6081  {
6082  SCIPmessagePrintWarning(messagehdlr, "Syntax error: Could not find colon ':' after constraint name.\n");
6083  return SCIP_OKAY;
6084  }
6085 
6086  /* skip colon */
6087  ++str;
6088 
6089  /* skip white space */
6090  while ( isspace((unsigned char)* str) )
6091  ++str;
6092 
6093  /* check if a constraint handler with parsed name exists */
6094  conshdlr = SCIPsetFindConshdlr(set, conshdlrname);
6095 
6096  if( conshdlr == NULL )
6097  {
6098  SCIPmessagePrintWarning(messagehdlr, "constraint handler <%s> doesn't exist in SCIP data structure\n", conshdlrname);
6099  }
6100  else
6101  {
6102  assert( conshdlr != NULL );
6103  if ( conshdlr->consparse == NULL )
6104  {
6105  SCIPmessagePrintWarning(messagehdlr, "constraint handler <%s> does not support parsing constraints\n", conshdlrname);
6106  }
6107  else
6108  {
6109  SCIP_CALL( conshdlr->consparse(set->scip, conshdlr, cons, consname, str,
6110  initial, separate, enforce, check, propagate, local, modifiable, dynamic, removable, stickingatnode, success) );
6111  }
6112  }
6113 
6114  return SCIP_OKAY;
6115 }
6116 
6117 /** change name of given constraint */
6119  SCIP_CONS* cons, /**< problem constraint */
6120  BMS_BLKMEM* blkmem, /**< block memory buffer */
6121  const char* name /**< new name of constraint */
6122  )
6123 {
6124  assert(cons != NULL);
6125  assert(cons->name != NULL);
6126 
6127  /* free old constraint name */
6128  BMSfreeBlockMemoryArray(blkmem, &cons->name, strlen(cons->name)+1);
6129 
6130  /* copy new constraint name */
6131  SCIP_ALLOC( BMSduplicateBlockMemoryArray(blkmem, &cons->name, name, strlen(name)+1) );
6132 
6133  return SCIP_OKAY;
6134 }
6135 
6136 
6137 /** frees a constraint and removes it from the conss array of its constraint handler */
6139  SCIP_CONS** cons, /**< constraint to free */
6140  BMS_BLKMEM* blkmem, /**< block memory buffer */
6141  SCIP_SET* set /**< global SCIP settings */
6142  )
6143 {
6144  assert(cons != NULL);
6145  assert(*cons != NULL);
6146  assert((*cons)->conshdlr != NULL);
6147  assert((*cons)->nuses == 0);
6148  assert(!(*cons)->active);
6149  assert(!(*cons)->update);
6150  assert(!(*cons)->original || (*cons)->transorigcons == NULL);
6151  assert(blkmem != NULL);
6152  assert(set != NULL);
6153  assert((*cons)->scip == set->scip);
6154 
6155  SCIPsetDebugMsg(set, "freeing constraint <%s> at conss pos %d of handler <%s>\n",
6156  (*cons)->name, (*cons)->consspos, (*cons)->conshdlr->name);
6157 
6158  /* free constraint data */
6159  if( (*cons)->conshdlr->consdelete != NULL && (*cons)->consdata != NULL && (*cons)->deleteconsdata )
6160  {
6161  SCIP_CALL( (*cons)->conshdlr->consdelete(set->scip, (*cons)->conshdlr, *cons, &(*cons)->consdata) );
6162  }
6163  else if( !(*cons)->deleteconsdata )
6164  (*cons)->consdata = NULL;
6165  assert((*cons)->consdata == NULL);
6166 
6167  /* unlink transformed and original constraint */
6168  if( (*cons)->transorigcons != NULL )
6169  {
6170  assert(!(*cons)->original);
6171  assert((*cons)->transorigcons->original);
6172  assert((*cons)->transorigcons->transorigcons == *cons);
6173 
6174  (*cons)->transorigcons->transorigcons = NULL;
6175  }
6176 
6177  /* remove constraint from the transformed constraints array */
6178  if( !(*cons)->original )
6179  {
6180  conshdlrDelCons((*cons)->conshdlr, *cons);
6181  checkConssArrays((*cons)->conshdlr);
6182  }
6183  assert((*cons)->consspos == -1);
6184 
6185  /* free constraint */
6186  BMSfreeBlockMemoryArray(blkmem, &(*cons)->name, strlen((*cons)->name)+1);
6187  BMSfreeBlockMemory(blkmem, cons);
6188 
6189  return SCIP_OKAY;
6190 }
6191 
6192 /** increases usage counter of constraint */
6193 void SCIPconsCapture(
6194  SCIP_CONS* cons /**< constraint */
6195  )
6196 {
6197  assert(cons != NULL);
6198  assert(cons->nuses >= 0);
6199 
6200  SCIPdebugMessage("capture constraint <%s> with nuses=%d, cons pointer %p\n", cons->name, cons->nuses, (void*)cons);
6201  cons->nuses++;
6202 }
6203 
6204 /** decreases usage counter of constraint, and frees memory if necessary */
6206  SCIP_CONS** cons, /**< pointer to constraint */
6207  BMS_BLKMEM* blkmem, /**< block memory */
6208  SCIP_SET* set /**< global SCIP settings */
6209  )
6210 {
6211  assert(blkmem != NULL);
6212  assert(cons != NULL);
6213  assert(*cons != NULL);
6214  assert((*cons)->conshdlr != NULL);
6215  assert((*cons)->nuses >= 1);
6216  assert(set != NULL);
6217  assert((*cons)->scip == set->scip);
6218 
6219  SCIPsetDebugMsg(set, "release constraint <%s> with nuses=%d, cons pointer %p\n", (*cons)->name, (*cons)->nuses, (void*)(*cons));
6220  (*cons)->nuses--;
6221  if( (*cons)->nuses == 0 )
6222  {
6223  assert(!(*cons)->active || (*cons)->updatedeactivate);
6224 
6225  /* check, if freeing constraint should be delayed */
6226  if( conshdlrAreUpdatesDelayed((*cons)->conshdlr) )
6227  {
6228  SCIPsetDebugMsg(set, " -> delaying freeing constraint <%s>\n", (*cons)->name);
6229  (*cons)->updatefree = TRUE;
6230  SCIP_CALL( conshdlrAddUpdateCons((*cons)->conshdlr, set, *cons) );
6231  assert((*cons)->update);
6232  assert((*cons)->nuses == 1);
6233  }
6234  else
6235  {
6236  SCIP_CALL( SCIPconsFree(cons, blkmem, set) );
6237  }
6238  }
6239  *cons = NULL;
6240 
6241  return SCIP_OKAY;
6242 }
6243 
6244 /** outputs constraint information to file stream */
6246  SCIP_CONS* cons, /**< constraint to print */
6247  SCIP_SET* set, /**< global SCIP settings */
6248  SCIP_MESSAGEHDLR* messagehdlr, /**< message handler */
6249  FILE* file /**< output file (or NULL for standard output) */
6250  )
6251 {
6252  SCIP_CONSHDLR* conshdlr;
6253 
6254  assert(cons != NULL);
6255  assert(set != NULL);
6256  assert(cons->scip == set->scip);
6257 
6258  conshdlr = cons->conshdlr;
6259  assert(conshdlr != NULL);
6260 
6261  SCIPmessageFPrintInfo(messagehdlr, file, " [%s] <%s>: ", conshdlr->name, cons->name);
6262 
6263  if( conshdlr->consprint != NULL )
6264  {
6265  SCIP_CALL( conshdlr->consprint(set->scip, conshdlr, cons, file) );
6266  }
6267  else
6268  SCIPmessageFPrintInfo(messagehdlr, file, "constraint handler <%s> doesn't support printing constraint", conshdlr->name);
6269 
6270  return SCIP_OKAY;
6271 }
6272 
6273 /** method to collect the variables of a constraint
6274  *
6275  * If the number of variables is greater than the available slots in the variable array, nothing happens except that
6276  * the success point is set to FALSE. With the method SCIPconsGetNVars() it is possible to get the number of variables
6277  * a constraint has in its scope.
6278  *
6279  * @note The success pointer indicates if all variables were copied into the vars arrray.
6280  *
6281  * @note It might be that a constraint handler does not support this functionality, in that case the success pointer is
6282  * set to FALSE.
6283  */
6285  SCIP_CONS* cons, /**< constraint to print */
6286  SCIP_SET* set, /**< global SCIP settings */
6287  SCIP_VAR** vars, /**< array to store the involved variable of the constraint */
6288  int varssize, /**< available slots in vars array which is needed to check if the array is large enough */
6289  SCIP_Bool* success /**< pointer to store whether the variables are successfully copied */
6290  )
6291 {
6292  SCIP_CONSHDLR* conshdlr;
6293 
6294  assert(cons != NULL);
6295  assert(set != NULL);
6296  assert(cons->scip == set->scip);
6297 
6298  conshdlr = cons->conshdlr;
6299  assert(conshdlr != NULL);
6300 
6301  if( conshdlr->consgetvars != NULL )
6302  {
6303  SCIP_CALL( conshdlr->consgetvars(set->scip, conshdlr, cons, vars, varssize, success) );
6304  }
6305  else
6306  {
6307  (*success) = FALSE;
6308  }
6309 
6310  return SCIP_OKAY;
6311 }
6312 
6313 /** method to collect the number of variables of a constraint
6314  *
6315  * @note The success pointer indicates if the contraint handler was able to return the number of variables
6316  *
6317  * @note It might be that a constraint handler does not support this functionality, in that case the success pointer is
6318  * set to FALSE
6319  */
6321  SCIP_CONS* cons, /**< constraint to print */
6322  SCIP_SET* set, /**< global SCIP settings */
6323  int* nvars, /**< pointer to store the number of variables */
6324  SCIP_Bool* success /**< pointer to store whether the constraint successfully returned the number of variables */
6325  )
6326 {
6327  SCIP_CONSHDLR* conshdlr;
6328 
6329  assert(cons != NULL);
6330  assert(set != NULL);
6331  assert(cons->scip == set->scip);
6332 
6333  conshdlr = cons->conshdlr;
6334  assert(conshdlr != NULL);
6335 
6336  if( conshdlr->consgetnvars != NULL )
6337  {
6338  SCIP_CALL( conshdlr->consgetnvars(set->scip, conshdlr, cons, nvars, success) );
6339  }
6340  else
6341  {
6342  (*nvars) = 0;
6343  (*success) = FALSE;
6344  }
6345 
6346  return SCIP_OKAY;
6347 }
6348 
6349 /** globally removes constraint from all subproblems; removes constraint from the constraint set change data of the
6350  * node, where it was created, or from the problem, if it was a problem constraint
6351  */
6353  SCIP_CONS* cons, /**< constraint to delete */
6354  BMS_BLKMEM* blkmem, /**< block memory */
6355  SCIP_SET* set, /**< global SCIP settings */
6356  SCIP_STAT* stat, /**< dynamic problem statistics */
6357  SCIP_PROB* prob, /**< problem data */
6358  SCIP_REOPT* reopt /**< reoptimization data */
6359  )
6360 {
6361  assert(cons != NULL);
6362  assert(cons->conshdlr != NULL);
6363  assert(!cons->active || cons->updatedeactivate || cons->addarraypos >= 0);
6364  assert(set != NULL);
6365  assert(cons->scip == set->scip);
6366 
6367  SCIPsetDebugMsg(set, "globally deleting constraint <%s> (delay updates: %d)\n",
6368  cons->name, cons->conshdlr->delayupdatecount);
6369 
6370  /* mark constraint deleted */
6371  cons->deleted = TRUE;
6372 
6373  /* deactivate constraint, if it is currently active */
6374  if( cons->active && !cons->updatedeactivate )
6375  {
6376  SCIP_CALL( SCIPconsDeactivate(cons, set, stat) );
6377  }
6378  else
6379  cons->updateactivate = FALSE;
6380 
6381  if( set->reopt_enable && !SCIPreoptConsCanBeDeleted(reopt, cons) )
6382  return SCIP_OKAY;
6383 
6384  assert(!cons->active || cons->updatedeactivate);
6385  assert(!cons->enabled || cons->updatedeactivate);
6386 
6387  /* remove formerly active constraint from the conssetchg's addedconss / prob's conss array */
6388  if( cons->addarraypos >= 0 )
6389  {
6390  if( cons->addconssetchg == NULL )
6391  {
6392  /* remove problem constraint from the problem */
6393  SCIP_CALL( SCIPprobDelCons(prob, blkmem, set, stat, cons) );
6394  }
6395  else
6396  {
6397  assert(cons->addconssetchg->addedconss != NULL);
6398  assert(0 <= cons->addarraypos && cons->addarraypos < cons->addconssetchg->naddedconss);
6399  assert(cons->addconssetchg->addedconss[cons->addarraypos] == cons);
6400 
6401  /* remove constraint from the constraint set change addedconss array */
6402  SCIP_CALL( conssetchgDelAddedCons(cons->addconssetchg, blkmem, set, cons->addarraypos) );
6403  }
6404  }
6405 
6406  return SCIP_OKAY;
6407 }
6408 
6409 /** gets and captures transformed constraint of a given original constraint; if the constraint is not yet transformed,
6410  * a new transformed constraint for this constraint is created
6411  */
6413  SCIP_CONS* origcons, /**< original constraint */
6414  BMS_BLKMEM* blkmem, /**< block memory buffer */
6415  SCIP_SET* set, /**< global SCIP settings */
6416  SCIP_CONS** transcons /**< pointer to store the transformed constraint */
6417  )
6418 {
6419  assert(origcons != NULL);
6420  assert(set != NULL);
6421  assert(origcons->scip == set->scip);
6422  assert(origcons->conshdlr != NULL);
6423  assert(origcons->original);
6424  assert(transcons != NULL);
6425 
6426  /* check, if the constraint is already transformed */
6427  if( origcons->transorigcons != NULL )
6428  {
6429  *transcons = origcons->transorigcons;
6430  SCIPconsCapture(*transcons);
6431  }
6432  else
6433  {
6434  /* create transformed constraint */
6435  if( origcons->conshdlr->constrans != NULL )
6436  {
6437  /* use constraint handler's own method to transform constraint */
6438  SCIP_CALL( origcons->conshdlr->constrans(set->scip, origcons->conshdlr, origcons, transcons) );
6439  }
6440  else
6441  {
6442  /* create new constraint with a pointer copy of the constraint data */
6443  SCIP_CALL( SCIPconsCreate(transcons, blkmem, set, origcons->name, origcons->conshdlr, origcons->consdata, origcons->initial,
6444  origcons->separate, origcons->enforce, origcons->check, origcons->propagate,
6445  origcons->local, origcons->modifiable, origcons->dynamic, origcons->removable, origcons->stickingatnode,
6446  FALSE, FALSE) );
6447  }
6448 
6449  /* link original and transformed constraint */
6450  origcons->transorigcons = *transcons;
6451  (*transcons)->transorigcons = origcons;
6452 
6453  /* copy the number of upgradelocks */
6454  (*transcons)->nupgradelocks = origcons->nupgradelocks; /*lint !e732*/
6455  }
6456  assert(*transcons != NULL);
6457 
6458  return SCIP_OKAY;
6459 }
6460 
6461 /** sets the initial flag of the given constraint */
6463  SCIP_CONS* cons, /**< constraint */
6464  SCIP_SET* set, /**< global SCIP settings */
6465  SCIP_STAT* stat, /**< dynamic problem statistics */
6466  SCIP_Bool initial /**< new value */
6467  )
6468 {
6469  assert(cons != NULL);
6470  assert(set != NULL);
6471  assert(cons->scip == set->scip);
6472 
6473  if( cons->initial != initial )
6474  {
6475  cons->initial = initial;
6476  if( !cons->original )
6477  {
6478  if( cons->initial )
6479  {
6480  SCIP_CALL( conshdlrAddInitcons(SCIPconsGetHdlr(cons), set, stat, cons) );
6481  }
6482  else
6483  {
6484  if( cons->initconsspos >= 0 )
6485  {
6486  conshdlrDelInitcons(SCIPconsGetHdlr(cons), cons);
6487  }
6488  }
6489  }
6490  }
6491 
6492  return SCIP_OKAY;
6493 }
6494 
6495 /** sets the separate flag of the given constraint */
6497  SCIP_CONS* cons, /**< constraint */
6498  SCIP_SET* set, /**< global SCIP settings */
6499  SCIP_Bool separate /**< new value */
6500  )
6501 {
6502  assert(cons != NULL);
6503  assert(set != NULL);
6504  assert(cons->scip == set->scip);
6505 
6506  if( cons->separate != separate )
6507  {
6508  if( SCIPsetGetStage(set) == SCIP_STAGE_PROBLEM )
6509  {
6510  cons->separate = separate;
6511  }
6512  else if( cons->enabled && cons->sepaenabled )
6513  {
6514  if( separate )
6515  {
6516  cons->separate = separate;
6517  SCIP_CALL( conshdlrAddSepacons(cons->conshdlr, set, cons) );
6518  }
6519  else
6520  {
6521  conshdlrDelSepacons(cons->conshdlr, cons);
6522  cons->separate = separate;
6523  }
6524  }
6525  }
6526 
6527  return SCIP_OKAY;
6528 }
6529 
6530 /** sets the enforce flag of the given constraint */
6532  SCIP_CONS* cons, /**< constraint */
6533  SCIP_SET* set, /**< global SCIP settings */
6534  SCIP_Bool enforce /**< new value */
6535  )
6536 {
6537  assert(cons != NULL);
6538  assert(set != NULL);
6539  assert(cons->scip == set->scip);
6540 
6541  if( cons->enforce != enforce )
6542  {
6543  if( SCIPsetGetStage(set) == SCIP_STAGE_PROBLEM )
6544  {
6545  cons->enforce = enforce;
6546  }
6547  else if( cons->enabled )
6548  {
6549  if( enforce )
6550  {
6551  cons->enforce = enforce;
6552  SCIP_CALL( conshdlrAddEnfocons(cons->conshdlr, set, cons) );
6553  }
6554  else
6555  {
6556  conshdlrDelEnfocons(cons->conshdlr, cons);
6557  cons->enforce = enforce;
6558  }
6559  }
6560  }
6561 
6562  return SCIP_OKAY;
6563 }
6564 
6565 /** sets the check flag of the given constraint */
6567  SCIP_CONS* cons, /**< constraint */
6568  SCIP_SET* set, /**< global SCIP settings */
6569  SCIP_Bool check /**< new value */
6570  )
6571 {
6572  assert(cons != NULL);
6573  assert(set != NULL);
6574  assert(cons->scip == set->scip);
6575 
6576  if( cons->check != check )
6577  {
6578  cons->check = check;
6579 
6580  if( !cons->original )
6581  {
6582  /* if constraint is a problem constraint, update variable roundings locks */
6583  if( cons->addconssetchg == NULL && cons->addarraypos >= 0 )
6584  {
6585  if( cons->check )
6586  {
6587  SCIP_CALL( SCIPconsAddLocks(cons, set, SCIP_LOCKTYPE_MODEL, +1, 0) );
6588  }
6589  else
6590  {
6591  SCIP_CALL( SCIPconsAddLocks(cons, set, SCIP_LOCKTYPE_MODEL, -1, 0) );
6592  }
6593  }
6594 
6595  /* if constraint is active, update the checkconss array of the constraint handler */
6596  if( cons->active )
6597  {
6598  if( cons->check )
6599  {
6600  SCIP_CALL( conshdlrAddCheckcons(cons->conshdlr, set, cons) );
6601  }
6602  else
6603  {
6604  conshdlrDelCheckcons(cons->conshdlr, cons);
6605  }
6606  }
6607  }
6608  }
6609 
6610  return SCIP_OKAY;
6611 }
6612 
6613 /** sets the propagate flag of the given constraint */
6615  SCIP_CONS* cons, /**< constraint */
6616  SCIP_SET* set, /**< global SCIP settings */
6617  SCIP_Bool propagate /**< new value */
6618  )
6619 {
6620  assert(cons != NULL);
6621  assert(set != NULL);
6622  assert(cons->scip == set->scip);
6623 
6624  if( cons->propagate != propagate )
6625  {
6626  if( SCIPsetGetStage(set) == SCIP_STAGE_PROBLEM )
6627  {
6628  cons->propagate = propagate;
6629  }
6630  else if( cons->enabled && cons->propenabled )
6631  {
6632  if( propagate )
6633  {
6634  cons->propagate = propagate;
6635  SCIP_CALL( conshdlrAddPropcons(cons->conshdlr, set, cons) );
6636  }
6637  else
6638  {
6639  conshdlrDelPropcons(cons->conshdlr, cons);
6640  cons->propagate = propagate;
6641  }
6642  }
6643  }
6644 
6645  return SCIP_OKAY;
6646 }
6647 
6648 /** sets the local flag of the given constraint */
6649 void SCIPconsSetLocal(
6650  SCIP_CONS* cons, /**< constraint */
6651  SCIP_Bool local /**< new value */
6652  )
6653 {
6654  assert(cons != NULL);
6655 
6656  cons->local = local;
6657  if( !local )
6658  cons->validdepth = 0;
6659 }
6660 
6661 /** sets the modifiable flag of the given constraint */
6663  SCIP_CONS* cons, /**< constraint */
6664  SCIP_Bool modifiable /**< new value */
6665  )
6666 {
6667  assert(cons != NULL);
6668 
6669  cons->modifiable = modifiable;
6670 }
6671 
6672 /** sets the dynamic flag of the given constraint */
6673 void SCIPconsSetDynamic(
6674  SCIP_CONS* cons, /**< constraint */
6675  SCIP_Bool dynamic /**< new value */
6676  )
6677 {
6678  assert(cons != NULL);
6679 
6680  cons->dynamic = dynamic;
6681 }
6682 
6683 /** sets the removable flag of the given constraint */
6685  SCIP_CONS* cons, /**< constraint */
6686  SCIP_Bool removable /**< new value */
6687  )
6688 {
6689  assert(cons != NULL);
6690 
6691  cons->removable = removable;
6692 }
6693 
6694 /** sets the stickingatnode flag of the given constraint */
6696  SCIP_CONS* cons, /**< constraint */
6697  SCIP_Bool stickingatnode /**< new value */
6698  )
6699 {
6700  assert(cons != NULL);
6701 
6702  cons->stickingatnode = stickingatnode;
6703 }
6704 
6705 /** gives the constraint a new name; ATTENTION: to old pointer is over written that might
6706  * result in a memory leakage */
6708  SCIP_CONS* cons, /**< constraint */
6709  const char* name /**< new name of constraint */
6710  )
6711 {
6712  assert( cons != NULL );
6713  assert( name != NULL );
6714 
6715  cons->name = (char*)name;
6716 }
6717 
6718 /** gets associated transformed constraint of an original constraint, or NULL if no associated transformed constraint
6719  * exists
6720  */
6722  SCIP_CONS* cons /**< constraint */
6723  )
6724 {
6725  assert(cons->original);
6726 
6727  return cons->transorigcons;
6728 }
6729 
6730 /** activates constraint or marks constraint to be activated in next update */
6732  SCIP_CONS* cons, /**< constraint */
6733  SCIP_SET* set, /**< global SCIP settings */
6734  SCIP_STAT* stat, /**< dynamic problem statistics */
6735  int depth, /**< depth in the tree where the constraint activation takes place, or -1 for global problem */
6736  SCIP_Bool focusnode /**< does the constraint activation take place at the focus node? */
6737  )
6738 {
6739  assert(cons != NULL);
6740  assert(!cons->original);
6741  assert(!cons->active);
6742  assert(!cons->updateactivate);
6743  assert(!cons->updatedeactivate);
6744  assert(!cons->updateenable);
6745  assert(!cons->updatedisable);
6746  assert(!cons->updateobsolete);
6747  assert(!cons->updatefree);
6748  assert(cons->activedepth == -2);
6749  assert(cons->conshdlr != NULL);
6750  assert(set != NULL);
6751  assert(cons->scip == set->scip);
6752 
6753  if( conshdlrAreUpdatesDelayed(cons->conshdlr) )
6754  {
6755  SCIPsetDebugMsg(set, "delayed activation of constraint <%s> in constraint handler <%s> (depth %d)\n",
6756  cons->name, cons->conshdlr->name, depth);
6757  cons->updateactivate = TRUE;
6758  cons->activedepth = depth;
6759  cons->updateactfocus = focusnode;
6760  SCIP_CALL( conshdlrAddUpdateCons(cons->conshdlr, set, cons) );
6761  assert(cons->update);
6762  }
6763  else
6764  {
6765  SCIP_CALL( conshdlrActivateCons(cons->conshdlr, set, stat, cons, depth, focusnode) );
6766  assert(cons->active);
6767  }
6768 
6769  return SCIP_OKAY;
6770 }
6771 
6772 /** deactivates constraint or marks constraint to be deactivated in next update */
6774  SCIP_CONS* cons, /**< constraint */
6775  SCIP_SET* set, /**< global SCIP settings */
6776  SCIP_STAT* stat /**< dynamic problem statistics */
6777  )
6778 {
6779  assert(cons != NULL);
6780  assert(!cons->original);
6781  assert(cons->active);
6782  assert(!cons->updateactivate);
6783  assert(!cons->updatedeactivate);
6784  assert(cons->activedepth >= -1);
6785  assert(cons->conshdlr != NULL);
6786  assert(set != NULL);
6787  assert(cons->scip == set->scip);
6788 
6789  if( conshdlrAreUpdatesDelayed(cons->conshdlr) )
6790  {
6791  SCIPsetDebugMsg(set, "delayed deactivation of constraint <%s> in constraint handler <%s>\n",
6792  cons->name, cons->conshdlr->name);
6793  cons->updatedeactivate = TRUE;
6794  cons->activedepth = -2;
6795  SCIP_CALL( conshdlrAddUpdateCons(cons->conshdlr, set, cons) );
6796  assert(cons->update);
6797  }
6798  else
6799  {
6800  SCIP_CALL( conshdlrDeactivateCons(cons->conshdlr, set, stat, cons) );
6801  assert(!cons->active);
6802  }
6803 
6804  return SCIP_OKAY;
6805 }
6806 
6807 /** enables constraint's separation, enforcing, and propagation capabilities or marks them to be enabled in next update */
6809  SCIP_CONS* cons, /**< constraint */
6810  SCIP_SET* set, /**< global SCIP settings */
6811  SCIP_STAT* stat /**< dynamic problem statistics */
6812  )
6813 {
6814  assert(cons != NULL);
6815  assert(!cons->original);
6816  assert(cons->conshdlr != NULL);
6817  assert(set != NULL);
6818  assert(cons->scip == set->scip);
6819 
6820  if( !cons->active || cons->updatedeactivate || cons->updateenable || (cons->enabled && !cons->updatedisable) )
6821  return SCIP_OKAY;
6822 
6823  assert(!cons->updateactivate);
6824 
6825  if( conshdlrAreUpdatesDelayed(cons->conshdlr) )
6826  {
6827  cons->updateenable = TRUE;
6828  SCIP_CALL( conshdlrAddUpdateCons(cons->conshdlr, set, cons) );
6829  assert(cons->update);
6830  }
6831  else
6832  {
6833  SCIP_CALL( conshdlrEnableCons(cons->conshdlr, set, stat, cons) );
6834  assert(cons->enabled);
6835  }
6836 
6837  return SCIP_OKAY;
6838 }
6839 
6840 /** disables constraint's separation, enforcing, and propagation capabilities or marks them to be disabled in next update */
6842  SCIP_CONS* cons, /**< constraint */
6843  SCIP_SET* set, /**< global SCIP settings */
6844  SCIP_STAT* stat /**< dynamic problem statistics */
6845  )
6846 {
6847  assert(cons != NULL);
6848  assert(!cons->original);
6849  assert(cons->conshdlr != NULL);
6850  assert(set != NULL);
6851  assert(cons->scip == set->scip);
6852 
6853  if( cons->updatedisable || (!cons->enabled && !cons->updateenable) )
6854  return SCIP_OKAY;
6855 
6856  assert(cons->active);
6857  assert(!cons->updateactivate);
6858 
6859  if( conshdlrAreUpdatesDelayed(cons->conshdlr) )
6860  {
6861  cons->updatedisable = TRUE;
6862  SCIP_CALL( conshdlrAddUpdateCons(cons->conshdlr, set, cons) );
6863  assert(cons->update);
6864  }
6865  else
6866  {
6867  SCIP_CALL( conshdlrDisableCons(cons->conshdlr, set, stat, cons) );
6868  assert(!cons->enabled);
6869  }
6870 
6871  return SCIP_OKAY;
6872 }
6873 
6874 /** enables constraint's separation capabilities or marks them to be enabled in next update */
6876  SCIP_CONS* cons, /**< constraint */
6877  SCIP_SET* set /**< global SCIP settings */
6878  )
6879 {
6880  assert(cons != NULL);
6881  assert(cons->conshdlr != NULL);
6882  assert(set != NULL);
6883  assert(cons->scip == set->scip);
6884 
6885  if( cons->updatesepaenable || (cons->sepaenabled && !cons->updatesepadisable) )
6886  return SCIP_OKAY;
6887 
6888  if( conshdlrAreUpdatesDelayed(cons->conshdlr) )
6889  {
6890  cons->updatesepadisable = FALSE;
6891  cons->updatesepaenable = TRUE;
6892  SCIP_CALL( conshdlrAddUpdateCons(cons->conshdlr, set, cons) );
6893  assert(cons->update);
6894  }
6895  else
6896  {
6897  SCIP_CALL( conshdlrEnableConsSeparation(cons->conshdlr, set, cons) );
6898  assert(cons->sepaenabled);
6899  }
6900 
6901  return SCIP_OKAY;
6902 }
6903 
6904 /** disables constraint's separation capabilities or marks them to be disabled in next update */
6906  SCIP_CONS* cons, /**< constraint */
6907  SCIP_SET* set /**< global SCIP settings */
6908  )
6909 {
6910  assert(cons != NULL);
6911  assert(cons->conshdlr != NULL);
6912 
6913  if( cons->updatesepadisable || (!cons->sepaenabled && !cons->updatesepaenable) )
6914  return SCIP_OKAY;
6915 
6916  if( conshdlrAreUpdatesDelayed(cons->conshdlr) )
6917  {
6918  cons->updatesepaenable = FALSE;
6919  cons->updatesepadisable = TRUE;
6920  SCIP_CALL( conshdlrAddUpdateCons(cons->conshdlr, set, cons) );
6921  assert(cons->update);
6922  }
6923  else
6924  {
6926  assert(!cons->sepaenabled);
6927  }
6928 
6929  return SCIP_OKAY;
6930 }
6931 
6932 /** enables constraint's propagation capabilities or marks them to be enabled in next update */
6934  SCIP_CONS* cons, /**< constraint */
6935  SCIP_SET* set /**< global SCIP settings */
6936  )
6937 {
6938  assert(cons != NULL);
6939  assert(cons->conshdlr != NULL);
6940  assert(set != NULL);
6941  assert(cons->scip == set->scip);
6942 
6943  if( cons->updatepropenable || (cons->propenabled && !cons->updatepropdisable) )
6944  return SCIP_OKAY;
6945 
6946  if( conshdlrAreUpdatesDelayed(cons->conshdlr) )
6947  {
6948  cons->updatepropdisable = FALSE;
6949  cons->updatepropenable = TRUE;
6950  SCIP_CALL( conshdlrAddUpdateCons(cons->conshdlr, set, cons) );
6951  assert(cons->update);
6952  }
6953  else
6954  {
6955  SCIP_CALL( conshdlrEnableConsPropagation(cons->conshdlr, set, cons) );
6956  assert(cons->propenabled);
6957  }
6958 
6959  return SCIP_OKAY;
6960 }
6961 
6962 /** disables constraint's propagation capabilities or marks them to be disabled in next update */
6964  SCIP_CONS* cons, /**< constraint */
6965  SCIP_SET* set /**< global SCIP settings */
6966  )
6967 {
6968  assert(cons != NULL);
6969  assert(cons->conshdlr != NULL);
6970  assert(set != NULL);
6971  assert(cons->scip == set->scip);
6972 
6973  if( cons->updatepropdisable || (!cons->propenabled && !cons->updatepropenable) )
6974  return SCIP_OKAY;
6975 
6976  if( conshdlrAreUpdatesDelayed(cons->conshdlr) )
6977  {
6978  cons->updatepropenable = FALSE;
6979  cons->updatepropdisable = TRUE;
6980  SCIP_CALL( conshdlrAddUpdateCons(cons->conshdlr, set, cons) );
6981  assert(cons->update);
6982  }
6983  else
6984  {
6986  assert(!cons->propenabled);
6987  }
6988 
6989  return SCIP_OKAY;
6990 }
6991 
6992 /** marks the constraint to be a conflict */
6994  SCIP_CONS* cons /**< constraint */
6995  )
6996 {
6997  assert(cons != NULL);
6998 
6999  cons->conflict = TRUE;
7000 }
7001 
7002 /** marks the constraint to be propagated (update might be delayed) */
7004  SCIP_CONS* cons, /**< constraint */
7005  SCIP_SET* set /**< global SCIP settings */
7006  )
7007 {
7008  assert(cons != NULL);
7009  assert(cons->conshdlr != NULL);
7010  assert(set != NULL);
7011  assert(cons->scip == set->scip);
7012 
7013  if( cons->updatemarkpropagate || (cons->markpropagate && !cons->updateunmarkpropagate) )
7014  return SCIP_OKAY;
7015 
7016  if( conshdlrAreUpdatesDelayed(cons->conshdlr) )
7017  {
7018  cons->updateunmarkpropagate = FALSE;
7019  cons->updatemarkpropagate = TRUE;
7020  SCIP_CALL( conshdlrAddUpdateCons(cons->conshdlr, set, cons) );
7021  assert(cons->update);
7022  }
7023  else
7024  {
7025  conshdlrMarkConsPropagate(cons->conshdlr, cons);
7026  assert(cons->markpropagate || !cons->enabled);
7027  }
7028 
7029  return SCIP_OKAY;
7030 }
7031 
7032 /** unmarks the constraint to be propagated (update might be delayed) */
7034  SCIP_CONS* cons, /**< constraint */
7035  SCIP_SET* set /**< global SCIP settings */
7036  )
7037 {
7038  assert(cons != NULL);
7039  assert(cons->conshdlr != NULL);
7040  assert(set != NULL);
7041  assert(cons->scip == set->scip);
7042 
7043  if( cons->updateunmarkpropagate || (!cons->markpropagate && !cons->updatemarkpropagate) )
7044  return SCIP_OKAY;
7045 
7046  if( conshdlrAreUpdatesDelayed(cons->conshdlr) )
7047  {
7048  cons->updatemarkpropagate = FALSE;
7049  cons->updateunmarkpropagate = TRUE;
7050  SCIP_CALL( conshdlrAddUpdateCons(cons->conshdlr, set, cons) );
7051  assert(cons->update);
7052  }
7053  else
7054  {
7056  assert(!cons->markpropagate || !cons->enabled);
7057  }
7058 
7059  return SCIP_OKAY;
7060 }
7061 
7062 /** adds given value to age of constraint, but age can never become negative;
7063  * should be called
7064  * - in constraint separation, if no cut was found for this constraint,
7065  * - in constraint enforcing, if constraint was feasible, and
7066  * - in constraint propagation, if no domain reduction was deduced;
7067  * if it's age exceeds the constraint age limit, makes constraint obsolete or marks constraint to be made obsolete
7068  * in next update
7069  */
7071  SCIP_CONS* cons, /**< constraint */
7072  BMS_BLKMEM* blkmem, /**< block memory */
7073  SCIP_SET* set, /**< global SCIP settings */
7074  SCIP_STAT* stat, /**< dynamic problem statistics */
7075  SCIP_PROB* prob, /**< problem data */
7076  SCIP_Real deltaage, /**< value to add to the constraint's age */
7077  SCIP_REOPT* reopt /**< reoptimization data */
7078  )
7079 {
7080  assert(cons != NULL);
7081  assert(cons->conshdlr != NULL);
7082  assert(!cons->updateactivate);
7083  assert(set != NULL);
7084  assert(cons->scip == set->scip);
7085 
7086  /* no aging in presolving */
7087  if( set->stage == SCIP_STAGE_PRESOLVING )
7088  return SCIP_OKAY;
7089 
7090  SCIPsetDebugMsg(set, "adding %g to age (%g) of constraint <%s> of handler <%s>\n",
7091  deltaage, cons->age, cons->name, cons->conshdlr->name);
7092 
7093  cons->age += deltaage;
7094  cons->age = MAX(cons->age, 0.0);
7095 
7096  if( !cons->original )
7097  {
7098  if( !cons->check && consExceedsAgelimit(cons, set) )
7099  {
7100  SCIP_CALL( SCIPconsDelete(cons, blkmem, set, stat, prob, reopt) );
7101  }
7102  else if( !cons->obsolete && consExceedsObsoleteage(cons, set) )
7103  {
7104  if( conshdlrAreUpdatesDelayed(cons->conshdlr) )
7105  {
7106  cons->updateobsolete = TRUE;
7107  SCIP_CALL( conshdlrAddUpdateCons(cons->conshdlr, set, cons) );
7108  assert(cons->update);
7109  }
7110  else
7111  {
7113  assert(cons->obsolete);
7114  }
7115  }
7116  }
7117 
7118  return SCIP_OKAY;
7119 }
7120 
7121 /** increases age of constraint by 1.0;
7122  * should be called
7123  * - in constraint separation, if no cut was found for this constraint,
7124  * - in constraint enforcing, if constraint was feasible, and
7125  * - in constraint propagation, if no domain reduction was deduced;
7126  * if it's age exceeds the constraint age limit, makes constraint obsolete or marks constraint to be made obsolete
7127  * in next update
7128  */
7130  SCIP_CONS* cons, /**< constraint */
7131  BMS_BLKMEM* blkmem, /**< block memory */
7132  SCIP_SET* set, /**< global SCIP settings */
7133  SCIP_STAT* stat, /**< dynamic problem statistics */
7134  SCIP_PROB* prob, /**< problem data */
7135  SCIP_REOPT* reopt /**< reoptimization data */
7136  )
7137 {
7138  SCIP_CALL( SCIPconsAddAge(cons, blkmem, set, stat, prob, 1.0, reopt) );
7139 
7140  return SCIP_OKAY;
7141 }
7142 
7143 /** resets age of constraint to zero;
7144  * should be called
7145  * - in constraint separation, if a cut was found for this constraint,
7146  * - in constraint enforcing, if the constraint was violated, and
7147  * - in constraint propagation, if a domain reduction was deduced;
7148  * if it was obsolete, makes constraint useful again or marks constraint to be made useful again in next update
7149  */
7151  SCIP_CONS* cons, /**< constraint */
7152  SCIP_SET* set /**< global SCIP settings */
7153  )
7154 {
7155  assert(cons != NULL);
7156  assert(cons->conshdlr != NULL);
7157  assert(!cons->updateactivate);
7158  assert(set != NULL);
7159  assert(cons->scip == set->scip);
7160 
7161  SCIPsetDebugMsg(set, "resetting age %g of constraint <%s> of handler <%s>\n", cons->age, cons->name, cons->conshdlr->name);
7162 
7163  conshdlrUpdateAgeresetavg(cons->conshdlr, cons->age);
7164  cons->age = 0.0;
7165 
7166  if( cons->obsolete )
7167  {
7168  assert(!cons->original);
7169  if( conshdlrAreUpdatesDelayed(cons->conshdlr) )
7170  {
7171  cons->updateobsolete = TRUE;
7172  SCIP_CALL( conshdlrAddUpdateCons(cons->conshdlr, set, cons) );
7173  assert(cons->update);
7174  }
7175  else
7176  {
7177  SCIP_CALL( conshdlrMarkConsUseful(cons->conshdlr, cons) );
7178  assert(!cons->obsolete);
7179  }
7180  }
7181 
7182  return SCIP_OKAY;
7183 }
7184 
7185 /** resolves the given conflicting bound, that was deduced by the given constraint, by putting all "reason" bounds
7186  * leading to the deduction into the conflict queue with calls to SCIPaddConflictLb(), SCIPaddConflictUb(), SCIPaddConflictBd(),
7187  * SCIPaddConflictRelaxedLb(), SCIPaddConflictRelaxedUb(), SCIPaddConflictRelaxedBd(), or SCIPaddConflictBinvar();
7188  *
7189  * @note it is sufficient to explain the relaxed bound change
7190  */
7192  SCIP_CONS* cons, /**< constraint that deduced the assignment */
7193  SCIP_SET* set, /**< global SCIP settings */
7194  SCIP_VAR* infervar, /**< variable whose bound was deduced by the constraint */
7195  int inferinfo, /**< user inference information attached to the bound change */
7196  SCIP_BOUNDTYPE inferboundtype, /**< bound that was deduced (lower or upper bound) */
7197  SCIP_BDCHGIDX* bdchgidx, /**< bound change index, representing the point of time where change took place */
7198  SCIP_Real relaxedbd, /**< the relaxed bound */
7199  SCIP_RESULT* result /**< pointer to store the result of the callback method */
7200  )
7201 {
7202  SCIP_CONSHDLR* conshdlr;
7203 
7204  assert(set != NULL);
7205  assert(cons != NULL);
7206  assert((inferboundtype == SCIP_BOUNDTYPE_LOWER
7207  && SCIPgetVarLbAtIndex(set->scip, infervar, bdchgidx, TRUE) > SCIPvarGetLbGlobal(infervar))
7208  || (inferboundtype == SCIP_BOUNDTYPE_UPPER
7209  && SCIPgetVarUbAtIndex(set->scip, infervar, bdchgidx, TRUE) < SCIPvarGetUbGlobal(infervar)));
7210  assert(result != NULL);
7211  assert(cons->scip == set->scip);
7212 
7213  *result = SCIP_DIDNOTRUN;
7214 
7215  conshdlr = cons->conshdlr;
7216  assert(conshdlr != NULL);
7217 
7218  if( conshdlr->consresprop != NULL )
7219  {
7220  /* start timing */
7221  SCIPclockStart(conshdlr->resproptime, set);
7222 
7223  SCIP_CALL( conshdlr->consresprop(set->scip, conshdlr, cons, infervar, inferinfo, inferboundtype, bdchgidx,
7224  relaxedbd, result) );
7225 
7226  /* stop timing */
7227  SCIPclockStop(conshdlr->resproptime, set);
7228 
7229  /* update statistics */
7230  conshdlr->nrespropcalls++;
7231 
7232  /* check result code */
7233  if( *result != SCIP_SUCCESS && *result != SCIP_DIDNOTFIND )
7234  {
7235  SCIPerrorMessage("propagation conflict resolving method of constraint handler <%s> returned invalid result <%d>\n",
7236  conshdlr->name, *result);
7237  return SCIP_INVALIDRESULT;
7238  }
7239  }
7240  else
7241  {
7242  SCIPerrorMessage("propagation conflict resolving method of constraint handler <%s> is not implemented\n",
7243  conshdlr->name);
7244  return SCIP_PLUGINNOTFOUND;
7245  }
7246 
7247  return SCIP_OKAY;
7248 }
7249 
7250 /** adds given values to lock status of the constraint and updates the locks of the given locktype of the involved variables */
7252  SCIP_CONS* cons, /**< constraint */
7253  SCIP_SET* set, /**< global SCIP settings */
7254  SCIP_LOCKTYPE locktype, /**< type of variable locks */
7255  int nlockspos, /**< increase in number of rounding locks for constraint */
7256  int nlocksneg /**< increase in number of rounding locks for constraint's negation */
7257  )
7258 {
7259  int oldnlockspos;
7260  int oldnlocksneg;
7261  int updlockpos;
7262  int updlockneg;
7263 
7264  assert(cons != NULL);
7265  assert(cons->conshdlr != NULL);
7266  assert(cons->conshdlr->conslock != NULL);
7267  assert((int)locktype >= 0 && (int)locktype < (int)NLOCKTYPES); /*lint !e685 !e568 !e587 !e650*/
7268  assert(cons->nlockspos[locktype] >= 0);
7269  assert(cons->nlocksneg[locktype] >= 0);
7270  assert(-2 <= nlockspos && nlockspos <= 2);
7271  assert(-2 <= nlocksneg && nlocksneg <= 2);
7272  assert(set != NULL);
7273  assert(cons->scip == set->scip);
7274 
7275  /* update the rounding locks */
7276  oldnlockspos = cons->nlockspos[locktype];
7277  oldnlocksneg = cons->nlocksneg[locktype];
7278  cons->nlockspos[locktype] += nlockspos;
7279  cons->nlocksneg[locktype] += nlocksneg;
7280  assert(cons->nlockspos[locktype] >= 0);
7281  assert(cons->nlocksneg[locktype] >= 0);
7282 
7283  /* check, if the constraint switched from unlocked to locked, or from locked to unlocked */
7284  updlockpos = (int)(cons->nlockspos[locktype] > 0) - (int)(oldnlockspos > 0);
7285  updlockneg = (int)(cons->nlocksneg[locktype] > 0) - (int)(oldnlocksneg > 0);
7286 
7287  /* lock the variables, if the constraint switched from unlocked to locked or from locked to unlocked */
7288  if( updlockpos != 0 || updlockneg != 0 )
7289  {
7290  SCIP_CALL( cons->conshdlr->conslock(set->scip, cons->conshdlr, cons, locktype, updlockpos, updlockneg) );
7291  }
7292 
7293  return SCIP_OKAY;
7294 }
7295 
7296 /** checks single constraint for feasibility of the given solution */
7298  SCIP_CONS* cons, /**< constraint to check */
7299  SCIP_SET* set, /**< global SCIP settings */
7300  SCIP_SOL* sol, /**< primal CIP solution */
7301  SCIP_Bool checkintegrality, /**< Has integrality to be checked? */
7302  SCIP_Bool checklprows, /**< Do constraints represented by rows in the current LP have to be checked? */
7303  SCIP_Bool printreason, /**< Should the reason for the violation be printed? */
7304  SCIP_RESULT* result /**< pointer to store the result of the callback method */
7305  )
7306 {
7307  SCIP_CONSHDLR* conshdlr;
7308 
7309  assert(cons != NULL);
7310  assert(set != NULL);
7311  assert(cons->scip == set->scip);
7312  assert(result != NULL);
7313 
7314  conshdlr = cons->conshdlr;
7315  assert(conshdlr != NULL);
7316 
7317  /* call external method */
7318  assert(conshdlr->conscheck != NULL);
7319 
7320  SCIP_CALL( conshdlr->conscheck(set->scip, conshdlr, &cons, 1, sol, checkintegrality, checklprows, printreason,
7321  FALSE, result) );
7322  SCIPsetDebugMsg(set, " -> checking returned result <%d>\n", *result);
7323 
7324  if( *result != SCIP_INFEASIBLE && *result != SCIP_FEASIBLE )
7325  {
7326  SCIPerrorMessage("feasibility check of constraint handler <%s> on constraint <%s> returned invalid result <%d>\n",
7327  conshdlr->name, cons->name, *result);
7328  return SCIP_INVALIDRESULT;
7329  }
7330 
7331  return SCIP_OKAY;
7332 }
7333 
7334 /** enforces single constraint for a given pseudo solution */
7336  SCIP_CONS* cons, /**< constraint to enforce */
7337  SCIP_SET* set, /**< global SCIP settings */
7338  SCIP_Bool solinfeasible, /**< was the solution already declared infeasible by a constraint handler? */
7339  SCIP_Bool objinfeasible, /**< is the solution infeasible anyway due to violating lower objective bound? */
7340  SCIP_RESULT* result /**< pointer to store the result of the callback method */
7341  )
7342 {
7343  SCIP_CONSHDLR* conshdlr;
7344 
7345  assert(cons != NULL);
7346  assert(set != NULL);
7347  assert(cons->scip == set->scip);
7348  assert(result != NULL);
7349 
7350  conshdlr = cons->conshdlr;
7351  assert(conshdlr != NULL);
7352 
7353  /* call external method */
7354  assert(conshdlr->consenfops != NULL);
7355 
7356  SCIP_CALL( conshdlr->consenfops(set->scip, conshdlr, &cons, 1, 1, solinfeasible, objinfeasible, result) );
7357  SCIPsetDebugMsg(set, " -> enfops returned result <%d>\n", *result);
7358 
7359  if( *result != SCIP_CUTOFF
7360  && *result != SCIP_CONSADDED
7361  && *result != SCIP_REDUCEDDOM
7362  && *result != SCIP_BRANCHED
7363  && *result != SCIP_SOLVELP
7364  && *result != SCIP_INFEASIBLE
7365  && *result != SCIP_FEASIBLE
7366  && *result != SCIP_DIDNOTRUN )
7367  {
7368  SCIPerrorMessage("enforcing method of constraint handler <%s> for pseudo solutions returned invalid result <%d>\n",
7369  conshdlr->name, *result);
7370  return SCIP_INVALIDRESULT;
7371  }
7372 
7373  /* do not update statistics */
7374 
7375  return SCIP_OKAY;
7376 }
7377 
7378 /** enforces single constraint for a given LP solution */
7380  SCIP_CONS* cons, /**< constraint to enforce */
7381  SCIP_SET* set, /**< global SCIP settings */
7382  SCIP_Bool solinfeasible, /**< was the solution already declared infeasible by a constraint handler? */
7383  SCIP_RESULT* result /**< pointer to store the result of the callback method */
7384  )
7385 {
7386  SCIP_CONSHDLR* conshdlr;
7387 
7388  assert(cons != NULL);
7389  assert(set != NULL);
7390  assert(cons->scip == set->scip);
7391  assert(result != NULL);
7392 
7393  conshdlr = cons->conshdlr;
7394  assert(conshdlr != NULL);
7395 
7396  /* call external method */
7397  assert(conshdlr->consenfolp != NULL);
7398 
7399  SCIP_CALL( conshdlr->consenfolp(set->scip, conshdlr, &cons, 1, 1, solinfeasible, result) );
7400  SCIPsetDebugMsg(set, " -> enfolp returned result <%d>\n", *result);
7401 
7402  if( *result != SCIP_CUTOFF
7403  && *result != SCIP_CONSADDED
7404  && *result != SCIP_REDUCEDDOM
7405  && *result != SCIP_BRANCHED
7406  && *result != SCIP_SEPARATED
7407  && *result != SCIP_INFEASIBLE
7408  && *result != SCIP_FEASIBLE)
7409  {
7410  SCIPerrorMessage("enforcing method of constraint handler <%s> for LP returned invalid result <%d>\n",
7411  conshdlr->name, *result);
7412  return SCIP_INVALIDRESULT;
7413  }
7414 
7415  /* do not update statistics */
7416 
7417  return SCIP_OKAY;
7418 }
7419 
7420 /** enforces single constraint for a given relaxation solution */
7422  SCIP_CONS* cons, /**< constraint to enforce */
7423  SCIP_SET* set, /**< global SCIP settings */
7424  SCIP_SOL* sol, /**< solution to be enforced */
7425  SCIP_Bool solinfeasible, /**< was the solution already declared infeasible by a constraint handler? */
7426  SCIP_RESULT* result /**< pointer to store the result of the callback method */
7427  )
7428 {
7429  SCIP_CONSHDLR* conshdlr;
7430 
7431  assert(cons != NULL);
7432  assert(set != NULL);
7433  assert(cons->scip == set->scip);
7434  assert(sol != NULL);
7435  assert(result != NULL);
7436 
7437  conshdlr = cons->conshdlr;
7438  assert(conshdlr != NULL);
7439 
7440  /* call external method */
7441  assert(conshdlr->consenfolp != NULL);
7442 
7443  SCIP_CALL( conshdlr->consenforelax(set->scip, sol, conshdlr, &cons, 1, 1, solinfeasible, result) );
7444  SCIPdebugMessage(" -> enforelax returned result <%d>\n", *result);
7445 
7446  if( *result != SCIP_CUTOFF
7447  && *result != SCIP_CONSADDED
7448  && *result != SCIP_REDUCEDDOM
7449  && *result != SCIP_BRANCHED
7450  && *result != SCIP_SEPARATED
7451  && *result != SCIP_INFEASIBLE
7452  && *result != SCIP_FEASIBLE)
7453  {
7454  SCIPerrorMessage("enforcing method of constraint handler <%s> for relaxation returned invalid result <%d>\n",
7455  conshdlr->name, *result);
7456  return SCIP_INVALIDRESULT;
7457  }
7458 
7459  /* do not update statistics */
7460 
7461  return SCIP_OKAY;
7462 }
7463 
7464 /** calls LP initialization method for single constraint */
7466  SCIP_CONS* cons, /**< constraint to initialize */
7467  SCIP_SET* set, /**< global SCIP settings */
7468  SCIP_Bool* infeasible /**< pointer to store whether infeasibility was detected while building the LP */
7469  )
7470 {
7471  SCIP_CONSHDLR* conshdlr;
7472 
7473  assert(cons != NULL);
7474  assert(set != NULL);
7475  assert(infeasible != NULL);
7476  assert(cons->scip == set->scip);
7477 
7478  conshdlr = cons->conshdlr;
7479  assert(conshdlr != NULL);
7480 
7481  /* call external method */
7482  if( conshdlr->consinitlp != NULL )
7483  {
7484  SCIP_CALL( conshdlr->consinitlp(set->scip, conshdlr, &cons, 1, infeasible) );
7485  }
7486 
7487  return SCIP_OKAY;
7488 }
7489 
7490 /** calls separation method of single constraint for LP solution */
7492  SCIP_CONS* cons, /**< constraint to separate */
7493  SCIP_SET* set, /**< global SCIP settings */
7494  SCIP_RESULT* result /**< pointer to store the result of the separation call */
7495  )
7496 {
7497  SCIP_CONSHDLR* conshdlr;
7498 
7499  assert(cons != NULL);
7500  assert(set != NULL);
7501  assert(cons->scip == set->scip);
7502  assert(result != NULL);
7503 
7504  conshdlr = cons->conshdlr;
7505  assert(conshdlr != NULL);
7506 
7507  /* call external method */
7508  if( conshdlr->conssepalp != NULL )
7509  {
7510  SCIP_CALL( conshdlr->conssepalp(set->scip, conshdlr, &cons, 1, 1, result) );
7511  SCIPsetDebugMsg(set, " -> sepalp returned result <%d>\n", *result);
7512 
7513  if( *result != SCIP_CUTOFF
7514  && *result != SCIP_CONSADDED
7515  && *result != SCIP_REDUCEDDOM
7516  && *result != SCIP_SEPARATED
7517  && *result != SCIP_NEWROUND
7518  && *result != SCIP_DIDNOTFIND
7519  && *result != SCIP_DIDNOTRUN
7520  && *result != SCIP_DELAYED )
7521  {
7522  SCIPerrorMessage("separation method of constraint handler <%s> returned invalid result <%d>\n", conshdlr->name,
7523  *result);
7524  return SCIP_INVALIDRESULT;
7525  }
7526  }
7527 
7528  return SCIP_OKAY;
7529 }
7530 
7531 /** calls separation method of single constraint for given primal solution */
7533  SCIP_CONS* cons, /**< constraint to separate */
7534  SCIP_SET* set, /**< global SCIP settings */
7535  SCIP_SOL* sol, /**< primal solution that should be separated */
7536  SCIP_RESULT* result /**< pointer to store the result of the separation call */
7537  )
7538 {
7539  SCIP_CONSHDLR* conshdlr;
7540 
7541  assert(cons != NULL);
7542  assert(set != NULL);
7543  assert(cons->scip == set->scip);
7544  assert(sol != NULL);
7545  assert(result != NULL);
7546 
7547  conshdlr = cons->conshdlr;
7548  assert(conshdlr != NULL);
7549 
7550  /* call external method */
7551  if( conshdlr->conssepasol != NULL )
7552  {
7553  SCIP_CALL( conshdlr->conssepasol(set->scip, conshdlr, &cons, 1, 1, sol, result) );
7554  SCIPsetDebugMsg(set, " -> sepasol returned result <%d>\n", *result);
7555 
7556  if( *result != SCIP_CUTOFF
7557  && *result != SCIP_CONSADDED
7558  && *result != SCIP_REDUCEDDOM
7559  && *result != SCIP_SEPARATED
7560  && *result != SCIP_NEWROUND
7561  && *result != SCIP_DIDNOTFIND
7562  && *result != SCIP_DIDNOTRUN
7563  && *result != SCIP_DELAYED )
7564  {
7565  SCIPerrorMessage("separation method of constraint handler for arbitrary primal solution <%s> returned invalid result <%d>\n",
7566  conshdlr->name, *result);
7567  return SCIP_INVALIDRESULT;
7568  }
7569  }
7570 
7571  return SCIP_OKAY;
7572 }
7573 
7574 /** calls domain propagation method of single constraint */
7576  SCIP_CONS* cons, /**< constraint to propagate */
7577  SCIP_SET* set, /**< global SCIP settings */
7578  SCIP_PROPTIMING proptiming, /**< current point in the node solving loop */
7579  SCIP_RESULT* result /**< pointer to store the result of the callback method */
7580  )
7581 {
7582  SCIP_CONSHDLR* conshdlr;
7583 
7584  assert(cons != NULL);
7585  assert(set != NULL);
7586  assert(cons->scip == set->scip);
7587  assert(result != NULL);
7588 
7589  conshdlr = cons->conshdlr;
7590  assert(conshdlr != NULL);
7591 
7592  /* call external method */
7593  if( conshdlr->consprop != NULL )
7594  {
7595  SCIP_CALL( conshdlr->consprop(set->scip, conshdlr, &cons, 1, 1, 1, proptiming, result) );
7596  SCIPsetDebugMsg(set, " -> prop returned result <%d>\n", *result);
7597 
7598  if( *result != SCIP_CUTOFF
7599  && *result != SCIP_CONSADDED
7600  && *result != SCIP_REDUCEDDOM
7601  && *result != SCIP_DIDNOTFIND
7602  && *result != SCIP_DIDNOTRUN
7603  && *result != SCIP_DELAYED )
7604  {
7605  SCIPerrorMessage("propagation method of constraint handler <%s> returned invalid result <%d>\n",
7606  conshdlr->name, *result);
7607  return SCIP_INVALIDRESULT;
7608  }
7609  }
7610 
7611  return SCIP_OKAY;
7612 }
7613 
7614 /** resolves propagation conflict of single constraint */
7616  SCIP_CONS* cons, /**< constraint to resolve conflict for */
7617  SCIP_SET* set, /**< global SCIP settings */
7618  SCIP_VAR* infervar, /**< the conflict variable whose bound change has to be resolved */
7619  int inferinfo, /**< the user information passed to the corresponding SCIPinferVarLbCons() or SCIPinferVarUbCons() call */
7620  SCIP_BOUNDTYPE boundtype, /**< the type of the changed bound (lower or upper bound) */
7621  SCIP_BDCHGIDX* bdchgidx, /**< the index of the bound change, representing the point of time where the change took place */
7622  SCIP_Real relaxedbd, /**< the relaxed bound which is sufficient to be explained */
7623  SCIP_RESULT* result /**< pointer to store the result of the callback method */
7624  )
7625 {
7626  SCIP_CONSHDLR* conshdlr;
7627 
7628  assert(cons != NULL);
7629  assert(set != NULL);
7630  assert(cons->scip == set->scip);
7631  assert(result != NULL);
7632  assert(infervar != NULL);
7633  assert(bdchgidx != NULL);
7634 
7635  conshdlr = cons->conshdlr;
7636  assert(conshdlr != NULL);
7637 
7638  /* call external method */
7639  if( conshdlr->consresprop != NULL )
7640  {
7641  SCIP_CALL( conshdlr->consresprop(set->scip, conshdlr, cons, infervar, inferinfo, boundtype, bdchgidx, relaxedbd, result) );
7642  SCIPsetDebugMsg(set, " -> resprop returned result <%d>\n", *result);
7643 
7644  if( *result != SCIP_SUCCESS
7645  && *result != SCIP_DIDNOTFIND )
7646  {
7647  SCIPerrorMessage("propagation conflict resolving method of constraint handler <%s> returned invalid result <%d>\n",
7648  conshdlr->name, *result);
7649  return SCIP_INVALIDRESULT;
7650  }
7651  }
7652 
7653  return SCIP_OKAY;
7654 }
7655 
7656 /** presolves single constraint */
7658  SCIP_CONS* cons, /**< constraint to presolve */
7659  SCIP_SET* set, /**< global SCIP settings */
7660  int nrounds, /**< number of presolving rounds already done */
7661  SCIP_PRESOLTIMING timing, /**< current presolving timing */
7662  int nnewfixedvars, /**< number of variables fixed since the last call to the presolving method */
7663  int nnewaggrvars, /**< number of variables aggregated since the last call to the presolving method */
7664  int nnewchgvartypes, /**< number of variable type changes since the last call to the presolving method */
7665  int nnewchgbds, /**< number of variable bounds tightened since the last call to the presolving method */
7666  int nnewholes, /**< number of domain holes added since the last call to the presolving method */
7667  int nnewdelconss, /**< number of deleted constraints since the last call to the presolving method */
7668  int nnewaddconss, /**< number of added constraints since the last call to the presolving method */
7669  int nnewupgdconss, /**< number of upgraded constraints since the last call to the presolving method */
7670  int nnewchgcoefs, /**< number of changed coefficients since the last call to the presolving method */
7671  int nnewchgsides, /**< number of changed left or right hand sides since the last call to the presolving method */
7672  int* nfixedvars, /**< pointer to count total number of variables fixed of all presolvers */
7673  int* naggrvars, /**< pointer to count total number of variables aggregated of all presolvers */
7674  int* nchgvartypes, /**< pointer to count total number of variable type changes of all presolvers */
7675  int* nchgbds, /**< pointer to count total number of variable bounds tightened of all presolvers */
7676  int* naddholes, /**< pointer to count total number of domain holes added of all presolvers */
7677  int* ndelconss, /**< pointer to count total number of deleted constraints of all presolvers */
7678  int* naddconss, /**< pointer to count total number of added constraints of all presolvers */
7679  int* nupgdconss, /**< pointer to count total number of upgraded constraints of all presolvers */
7680  int* nchgcoefs, /**< pointer to count total number of changed coefficients of all presolvers */
7681  int* nchgsides, /**< pointer to count total number of changed left/right hand sides of all presolvers */
7682  SCIP_RESULT* result /**< pointer to store the result of the callback method */
7683  )
7684 {
7685  SCIP_CONSHDLR* conshdlr;
7686 
7687  assert(cons != NULL);
7688  assert(set != NULL);
7689  assert(cons->scip == set->scip);
7690  assert(nfixedvars != NULL);
7691  assert(naggrvars != NULL);
7692  assert(nchgvartypes != NULL);
7693  assert(nchgbds != NULL);
7694  assert(naddholes != NULL);
7695  assert(ndelconss != NULL);
7696  assert(naddconss != NULL);
7697  assert(nupgdconss != NULL);
7698  assert(nchgcoefs != NULL);
7699  assert(nchgsides != NULL);
7700  assert(result != NULL);
7701 
7702  conshdlr = cons->conshdlr;
7703  assert(conshdlr != NULL);
7704 
7705  /* call external method */
7706  if( conshdlr->conspresol != NULL )
7707  {
7708  SCIP_CALL( conshdlr->conspresol(set->scip, conshdlr, &cons, 1, nrounds, timing,
7709  nnewfixedvars, nnewaggrvars, nnewchgvartypes, nnewchgbds, nnewholes, nnewdelconss, nnewaddconss,
7710  nnewupgdconss, nnewchgcoefs, nnewchgsides, nfixedvars, naggrvars, nchgvartypes,
7711  nchgbds, naddholes, ndelconss, naddconss, nupgdconss, nchgcoefs, nchgsides, result) );
7712  SCIPsetDebugMsg(set, " -> presol returned result <%d>\n", *result);
7713 
7714  if( *result != SCIP_UNBOUNDED
7715  && *result != SCIP_CUTOFF
7716  && *result != SCIP_SUCCESS
7717  && *result != SCIP_DIDNOTFIND
7718  && *result != SCIP_DIDNOTRUN
7719  && *result != SCIP_DELAYED )
7720  {
7721  SCIPerrorMessage("presolving method of constraint handler <%s> returned invalid result <%d>\n",
7722  conshdlr->name, *result);
7723  return SCIP_INVALIDRESULT;
7724  }
7725  }
7726 
7727  return SCIP_OKAY;
7728 }
7729 
7730 /** calls constraint activation notification method of single constraint */
7732  SCIP_CONS* cons, /**< constraint to notify */
7733  SCIP_SET* set /**< global SCIP settings */
7734  )
7735 {
7736  SCIP_CONSHDLR* conshdlr;
7737 
7738  assert(cons != NULL);
7739  assert(set != NULL);
7740  assert(cons->scip == set->scip);
7741 
7742  conshdlr = cons->conshdlr;
7743  assert(conshdlr != NULL);
7744 
7745  /* call external method */
7746  if( conshdlr->consactive != NULL )
7747  {
7748  SCIP_CALL( conshdlr->consactive(set->scip, conshdlr, cons) );
7749  }
7750 
7751  return SCIP_OKAY;
7752 }
7753 
7754 /** calls constraint deactivation notification method of single constraint */
7756  SCIP_CONS* cons, /**< constraint to notify */
7757  SCIP_SET* set /**< global SCIP settings */
7758  )
7759 {
7760  SCIP_CONSHDLR* conshdlr;
7761 
7762  assert(cons != NULL);
7763  assert(set != NULL);
7764  assert(cons->scip == set->scip);
7765 
7766  conshdlr = cons->conshdlr;
7767  assert(conshdlr != NULL);
7768 
7769  /* call external method */
7770  if( conshdlr->consdeactive != NULL )
7771  {
7772  SCIP_CALL( conshdlr->consdeactive(set->scip, conshdlr, cons) );
7773  }
7774 
7775  return SCIP_OKAY;
7776 }
7777 
7778 
7779 
7780 /*
7781  * Hash functions
7782  */
7783 
7784 /** gets the key (i.e. the name) of the given constraint */
7785 SCIP_DECL_HASHGETKEY(SCIPhashGetKeyCons)
7786 { /*lint --e{715}*/
7787  SCIP_CONS* cons = (SCIP_CONS*)elem;
7788 
7789  assert(cons != NULL);
7790  return cons->name;
7791 }
7792 
7793 
7794 /*
7795  * method for arrays of contraint handlers
7796  */
7797 
7798 /** ensures size of storage for propagable constraints with a minimum size of num */
7799 static
7801  SCIP_SET* set, /**< global SCIP settings */
7802  SCIP_CONSHDLR* conshdlr, /**< constraint handler */
7803  int num /**< minimum number of entries to store */
7804  )
7805 {
7806  assert(set != NULL);
7807  assert(conshdlr != NULL);
7808 
7809  if( num > conshdlr->storedpropconsssize )
7810  {
7811  int newsize;
7812 
7813  newsize = SCIPsetCalcMemGrowSize(set, num);
7814  SCIP_ALLOC( BMSreallocMemoryArray(&(conshdlr->storedpropconss), newsize) );
7815 
7816  conshdlr->storedpropconsssize = newsize;
7817  }
7818  assert(num <= conshdlr->storedpropconsssize);
7819 
7820  return SCIP_OKAY;
7821 }
7822 
7823 /** stores all constraints marked for propagation away when probing is started */
7825  SCIP_SET* set, /**< global SCIP settings */
7826  SCIP_CONSHDLR** conshdlrs, /**< all constraint handlers */
7827  int nconshdlrs /**< number of contraint handlers */
7828  )
7829 {
7830  SCIP_CONSHDLR* conshdlr;
7831  int c;
7832 
7833  assert(set != NULL);
7834  assert(conshdlrs != NULL || nconshdlrs == 0);
7835 
7836  for( c = nconshdlrs - 1; c >= 0; --c )
7837  {
7838  conshdlr = conshdlrs[c]; /*lint !e613*/
7839  assert(conshdlr != NULL);
7840  assert(conshdlr->storednmarkedpropconss == 0);
7841 
7842  if( conshdlr->nmarkedpropconss > 0 )
7843  {
7844  int v;
7845 
7846  SCIP_CALL( ensurePropagationStorage(set, conshdlr, conshdlr->nmarkedpropconss) );
7847  BMScopyMemoryArray(conshdlr->storedpropconss, conshdlr->propconss, conshdlr->nmarkedpropconss);
7848 
7849  conshdlr->storednmarkedpropconss = conshdlr->nmarkedpropconss;
7850  conshdlr->storedpropdomchgcount = conshdlr->lastpropdomchgcount;
7851 
7852  for( v = conshdlr->storednmarkedpropconss - 1; v >= 0; --v )
7853  {
7854  SCIPconsCapture(conshdlr->storedpropconss[v]);
7855  }
7856  /* assert(conshdlr->nmarkedpropconss == 0); this assert does not hold if updates are delayed */
7857  }
7858  }
7859 
7860  return SCIP_OKAY;
7861 }
7862 
7863 /** reset all constraints marked for propagation when probing was finished */
7865  SCIP_SET* set, /**< global SCIP settings */
7866  BMS_BLKMEM* blkmem, /**< block memory */
7867  SCIP_CONSHDLR** conshdlrs, /**< all constraint handlers */
7868  int nconshdlrs /**< number of contraint handlers */
7869  )
7870 {
7871  SCIP_CONSHDLR* conshdlr;
7872  int c;
7873 
7874  assert(set != NULL);
7875  assert(blkmem != NULL);
7876  assert(conshdlrs != NULL || nconshdlrs == 0);
7877 
7878  for( c = nconshdlrs - 1; c >= 0; --c )
7879  {
7880  conshdlr = conshdlrs[c]; /*lint !e613*/
7881  assert(conshdlr != NULL);
7882 
7883  if( conshdlr->storednmarkedpropconss > 0 )
7884  {
7885 #ifndef NDEBUG
7886  int ndisabled = 0;
7887 #endif
7888  int v;
7889 
7890  for( v = conshdlr->nmarkedpropconss - 1; v >= 0; --v )
7891  {
7892  SCIP_CALL( SCIPconsUnmarkPropagate(conshdlr->propconss[v], set) );
7893  }
7894 
7895  /* mark all previously marked constraint, which were marked before probing */
7896  for( v = 0; v < conshdlr->storednmarkedpropconss; ++v )
7897  {
7898  SCIP_CONS* cons = conshdlr->storedpropconss[v];
7899  assert(cons != NULL);
7900 
7901  if( cons->enabled && cons->propagate && cons->propenabled )
7902  {
7903  SCIP_CALL( SCIPconsMarkPropagate(cons, set) );
7904  }
7905 #ifndef NDEBUG
7906  else
7907  ++ndisabled;
7908 #endif
7909  SCIP_CALL( SCIPconsRelease(&cons, blkmem, set) );
7910  }
7911 
7912  assert(conshdlr->storednmarkedpropconss - ndisabled <= conshdlr->npropconss);
7913  assert(conshdlr->nmarkedpropconss + ndisabled >= conshdlr->storednmarkedpropconss || (conshdlrAreUpdatesDelayed(conshdlr) && conshdlr->nupdateconss + ndisabled >= conshdlr->storednmarkedpropconss));
7914 
7915  conshdlr->lastpropdomchgcount = conshdlr->storedpropdomchgcount;
7916  conshdlr->storednmarkedpropconss = 0;
7917  }
7918  }
7919 
7920  return SCIP_OKAY;
7921 }
7922 
7923 /** create linear constraint statistics */
7925  SCIP* scip, /**< scip data structure */
7926  SCIP_LINCONSSTATS** linconsstats /**< pointer to linear constraint classification statistics */
7927  )
7928 {
7929  assert(linconsstats != NULL);
7930 
7931  SCIP_CALL( SCIPallocBlockMemory(scip, linconsstats) );
7932 
7933  return SCIP_OKAY;
7934 }
7935 
7936 /** free linear constraint statistics */
7938  SCIP* scip, /**< scip data structure */
7939  SCIP_LINCONSSTATS** linconsstats /**< pointer to linear constraint classification statistics */
7940  )
7941 {
7942  assert(linconsstats != NULL);
7943  assert(*linconsstats != NULL);
7944 
7945  SCIPfreeBlockMemory(scip, linconsstats);
7946 }
7947 
7948 /** resets linear constraint statistics */
7950  SCIP_LINCONSSTATS* linconsstats /**< linear constraint classification statistics */
7951  )
7952 {
7953  BMSclearMemoryArray(linconsstats->counter, SCIP_NLINCONSTYPES);
7954  linconsstats->sum = 0;
7955 }
7956 
7957 /** returns the number of occurrences of a specific type of linear constraint */
7959  SCIP_LINCONSSTATS* linconsstats, /**< linear constraint classification statistics */
7960  SCIP_LINCONSTYPE linconstype /**< linear constraint type */
7961  )
7962 {
7963  assert(linconsstats != NULL);
7964  assert((int)linconstype < SCIP_NLINCONSTYPES);
7965  assert(linconsstats->counter != NULL);
7966 
7967  return linconsstats->counter[(int)linconstype];
7968 }
7969 
7970 /** returns the total number of classified constraints */
7972  SCIP_LINCONSSTATS* linconsstats /**< linear constraint classification statistics */
7973  )
7974 {
7975  assert(linconsstats != NULL);
7976 
7977  return linconsstats->sum;
7978 }
7979 
7980 /** increases the number of occurrences of a specific type of linear constraint */
7982  SCIP_LINCONSSTATS* linconsstats, /**< linear constraint classification statistics */
7983  SCIP_LINCONSTYPE linconstype, /**< linear constraint type */
7984  int increment /**< positive increment */
7985  )
7986 {
7987  assert(linconsstats != NULL);
7988  assert(increment >= 1);
7989  assert((int)linconstype < SCIP_NLINCONSTYPES);
7990  assert(linconsstats->counter != NULL);
7991 
7992  linconsstats->counter[(int)linconstype] += increment;
7993  linconsstats->sum += increment;
7994 }
7995 
7996 /** print linear constraint classification statistics */
7998  SCIP* scip, /**< scip data structure */
7999  FILE* file, /**< file handle or NULL to print to standard out */
8000  SCIP_LINCONSSTATS* linconsstats /**< linear constraint classification statistics */
8001  )
8002 {
8003  assert(scip != NULL);
8004  assert(linconsstats != NULL);
8005 
8006  /* print statistics */
8007  SCIPinfoMessage(scip, file, "\n");
8008  SCIPinfoMessage(scip, file, "%-19s : %10s\n", "Linear cons types", "count");
8009  SCIPinfoMessage(scip, file, " %-17s : %10d\n", "total", SCIPlinConsStatsGetSum(linconsstats));
8010  SCIPinfoMessage(scip, file, " %-17s : %10d\n", "empty", SCIPlinConsStatsGetTypeCount(linconsstats, SCIP_LINCONSTYPE_EMPTY));
8011  SCIPinfoMessage(scip, file, " %-17s : %10d\n", "free", SCIPlinConsStatsGetTypeCount(linconsstats, SCIP_LINCONSTYPE_FREE));
8012  SCIPinfoMessage(scip, file, " %-17s : %10d\n", "singleton", SCIPlinConsStatsGetTypeCount(linconsstats, SCIP_LINCONSTYPE_SINGLETON));
8013  SCIPinfoMessage(scip, file, " %-17s : %10d\n", "aggregation", SCIPlinConsStatsGetTypeCount(linconsstats, SCIP_LINCONSTYPE_AGGREGATION));
8014  SCIPinfoMessage(scip, file, " %-17s : %10d\n", "precedence", SCIPlinConsStatsGetTypeCount(linconsstats, SCIP_LINCONSTYPE_PRECEDENCE));
8015  SCIPinfoMessage(scip, file, " %-17s : %10d\n", "varbound", SCIPlinConsStatsGetTypeCount(linconsstats, SCIP_LINCONSTYPE_VARBOUND));
8016  SCIPinfoMessage(scip, file, " %-17s : %10d\n", "setpartition", SCIPlinConsStatsGetTypeCount(linconsstats, SCIP_LINCONSTYPE_SETPARTITION));
8017  SCIPinfoMessage(scip, file, " %-17s : %10d\n", "setpacking", SCIPlinConsStatsGetTypeCount(linconsstats, SCIP_LINCONSTYPE_SETPACKING));
8018  SCIPinfoMessage(scip, file, " %-17s : %10d\n", "setcovering", SCIPlinConsStatsGetTypeCount(linconsstats, SCIP_LINCONSTYPE_SETCOVERING));
8019  SCIPinfoMessage(scip, file, " %-17s : %10d\n", "cardinality", SCIPlinConsStatsGetTypeCount(linconsstats, SCIP_LINCONSTYPE_CARDINALITY));
8020  SCIPinfoMessage(scip, file, " %-17s : %10d\n", "invknapsack", SCIPlinConsStatsGetTypeCount(linconsstats, SCIP_LINCONSTYPE_INVKNAPSACK));
8021  SCIPinfoMessage(scip, file, " %-17s : %10d\n", "eqknapsack", SCIPlinConsStatsGetTypeCount(linconsstats, SCIP_LINCONSTYPE_EQKNAPSACK));
8022  SCIPinfoMessage(scip, file, " %-17s : %10d\n", "binpacking", SCIPlinConsStatsGetTypeCount(linconsstats, SCIP_LINCONSTYPE_BINPACKING));
8023  SCIPinfoMessage(scip, file, " %-17s : %10d\n", "knapsack", SCIPlinConsStatsGetTypeCount(linconsstats, SCIP_LINCONSTYPE_KNAPSACK));
8024  SCIPinfoMessage(scip, file, " %-17s : %10d\n", "intknapsack", SCIPlinConsStatsGetTypeCount(linconsstats, SCIP_LINCONSTYPE_INTKNAPSACK));
8025  SCIPinfoMessage(scip, file, " %-17s : %10d\n", "mixedbinary", SCIPlinConsStatsGetTypeCount(linconsstats, SCIP_LINCONSTYPE_MIXEDBINARY));
8026  SCIPinfoMessage(scip, file, " %-17s : %10d\n", "general", SCIPlinConsStatsGetTypeCount(linconsstats, SCIP_LINCONSTYPE_GENERAL));
8027  SCIPinfoMessage(scip, file, "\n");
8028 }
8029 
8030 /*
8031  * simple functions implemented as defines
8032  */
8033 
8034 /* In debug mode, the following methods are implemented as function calls to ensure
8035  * type validity.
8036  * In optimized mode, the methods are implemented as defines to improve performance.
8037  * However, we want to have them in the library anyways, so we have to undef the defines.
8038  */
8039 
8040 #undef SCIPconsGetName
8041 #undef SCIPconsGetPos
8042 #undef SCIPconsGetHdlr
8043 #undef SCIPconsGetData
8044 #undef SCIPconsGetNUses
8045 #undef SCIPconsGetActiveDepth
8046 #undef SCIPconsGetValidDepth
8047 #undef SCIPconsIsActive
8048 #undef SCIPconsIsEnabled
8049 #undef SCIPconsIsSeparationEnabled
8050 #undef SCIPconsIsPropagationEnabled
8051 #undef SCIPconsIsDeleted
8052 #undef SCIPconsIsObsolete
8053 #undef SCIPconsIsConflict
8054 #undef SCIPconsGetAge
8055 #undef SCIPconsIsInitial
8056 #undef SCIPconsIsSeparated
8057 #undef SCIPconsIsEnforced
8058 #undef SCIPconsIsChecked
8059 #undef SCIPconsIsMarkedPropagate
8060 #undef SCIPconsIsPropagated
8061 #undef SCIPconsIsGlobal
8062 #undef SCIPconsIsLocal
8063 #undef SCIPconsIsModifiable
8064 #undef SCIPconsIsDynamic
8065 #undef SCIPconsIsRemovable
8066 #undef SCIPconsIsStickingAtNode
8067 #undef SCIPconsIsInProb
8068 #undef SCIPconsIsOriginal
8069 #undef SCIPconsIsTransformed
8070 #undef SCIPconsIsLockedPos
8071 #undef SCIPconsIsLockedNeg
8072 #undef SCIPconsIsLocked
8073 #undef SCIPconsGetNLocksPos
8074 #undef SCIPconsGetNLocksNeg
8075 #undef SCIPconsIsLockedTypePos
8076 #undef SCIPconsIsLockedTypeNeg
8077 #undef SCIPconsIsLockedType
8078 #undef SCIPconsGetNLocksTypePos
8079 #undef SCIPconsGetNLocksTypeNeg
8080 #undef SCIPconsIsAdded
8081 #undef SCIPconsGetNUpgradeLocks
8082 
8083 /** returns the name of the constraint
8084  *
8085  * @note to change the name of a constraint, use SCIPchgConsName() from scip.h
8086  */
8087 const char* SCIPconsGetName(
8088  SCIP_CONS* cons /**< constraint */
8089  )
8090 {
8091  assert(cons != NULL);
8092 
8093  return cons->name;
8094 }
8095 
8096 /** returns the position of constraint in the corresponding handler's conss array */
8097 int SCIPconsGetPos(
8098  SCIP_CONS* cons /**< constraint */
8099  )
8100 {
8101  assert(cons != NULL);
8102 
8103  return cons->consspos;
8104 }
8105 
8106 /** returns the constraint handler of the constraint */
8108  SCIP_CONS* cons /**< constraint */
8109  )
8110 {
8111  assert(cons != NULL);
8112 
8113  return cons->conshdlr;
8114 }
8115 
8116 /** returns the constraint data field of the constraint */
8118  SCIP_CONS* cons /**< constraint */
8119  )
8120 {
8121  assert(cons != NULL);
8122 
8123  return cons->consdata;
8124 }
8125 
8126 /** gets number of times, the constraint is currently captured */
8127 int SCIPconsGetNUses(
8128  SCIP_CONS* cons /**< constraint */
8129  )
8130 {
8131  assert(cons != NULL);
8132 
8133  return cons->nuses;
8134 }
8135 
8136 /** for an active constraint, returns the depth in the tree at which the constraint was activated */
8138  SCIP_CONS* cons /**< constraint */
8139  )
8140 {
8141  assert(cons != NULL);
8142  assert(SCIPconsIsActive(cons));
8143 
8144  return cons->activedepth;
8145 }
8146 
8147 /** returns TRUE iff constraint is active in the current node */
8149  SCIP_CONS* cons /**< constraint */
8150  )
8151 {
8152  assert(cons != NULL);
8153 
8154  return cons->updateactivate || (cons->active && !cons->updatedeactivate);
8155 }
8156 
8157 /** returns TRUE iff constraint is active in the current node */
8159  SCIP_CONS* cons /**< constraint */
8160  )
8161 {
8162  assert(cons != NULL);
8163 
8164  return cons->updatedeactivate;
8165 }
8166 
8167 /** returns the depth in the tree at which the constraint is valid; returns INT_MAX, if the constraint is local
8168  * and currently not active
8169  */
8171  SCIP_CONS* cons /**< constraint */
8172  )
8173 {
8174  assert(cons != NULL);
8175  assert(cons->validdepth == 0 || cons->local);
8176 
8177  return (!cons->local ? 0
8178  : !SCIPconsIsActive(cons) ? INT_MAX
8179  : cons->validdepth == -1 ? SCIPconsGetActiveDepth(cons)
8180  : cons->validdepth);
8181 }
8182 
8183 /** returns TRUE iff constraint is enabled in the current node */
8185  SCIP_CONS* cons /**< constraint */
8186  )
8187 {
8188  assert(cons != NULL);
8189 
8190  return cons->updateenable || (cons->enabled && !cons->updatedisable);
8191 }
8192 
8193 /** returns TRUE iff constraint's separation is enabled in the current node */
8195  SCIP_CONS* cons /**< constraint */
8196  )
8197 {
8198  assert(cons != NULL);
8199 
8200  return SCIPconsIsEnabled(cons)
8201  && (cons->updatesepaenable || (cons->sepaenabled && !cons->updatesepadisable));
8202 }
8203 
8204 /** returns TRUE iff constraint's propagation is enabled in the current node */
8206  SCIP_CONS* cons /**< constraint */
8207  )
8208 {
8209  assert(cons != NULL);
8210 
8211  return SCIPconsIsEnabled(cons)
8212  && (cons->updatepropenable || (cons->propenabled && !cons->updatepropdisable));
8213 }
8214 
8215 /** returns TRUE iff constraint is deleted or marked to be deleted */
8217  SCIP_CONS* cons /**< constraint */
8218  )
8219 {
8220  assert(cons != NULL);
8221 
8222  return cons->deleted;
8223 }
8224 
8225 /** returns TRUE iff constraint is marked obsolete */
8227  SCIP_CONS* cons /**< constraint */
8228  )
8229 {
8230  assert(cons != NULL);
8231 
8232  return cons->updateobsolete || cons->obsolete;
8233 }
8234 
8235 /** returns TRUE iff constraint is marked as a conflict */
8237  SCIP_CONS* cons /**< constraint */
8238  )
8239 {
8240  assert(cons != NULL);
8241 
8242  return cons->conflict;
8243 }
8244 
8245 /** gets age of constraint */
8247  SCIP_CONS* cons /**< constraint */
8248  )
8249 {
8250  assert(cons != NULL);
8251 
8252  return cons->age;
8253 }
8254 
8255 /** returns TRUE iff the LP relaxation of constraint should be in the initial LP */
8257  SCIP_CONS* cons /**< constraint */
8258  )
8259 {
8260  assert(cons != NULL);
8261 
8262  return cons->initial;
8263 }
8264 
8265 /** returns TRUE iff constraint should be separated during LP processing */
8267  SCIP_CONS* cons /**< constraint */
8268  )
8269 {
8270  assert(cons != NULL);
8271 
8272  return cons->separate;
8273 }
8274 
8275 /** returns TRUE iff constraint should be enforced during node processing */
8277  SCIP_CONS* cons /**< constraint */
8278  )
8279 {
8280  assert(cons != NULL);
8281 
8282  return cons->enforce;
8283 }
8284 
8285 /** returns TRUE iff constraint should be checked for feasibility */
8287  SCIP_CONS* cons /**< constraint */
8288  )
8289 {
8290  assert(cons != NULL);
8291 
8292  return cons->check;
8293 }
8294 
8295 /** returns whether the constraint is marked for propagation */
8297  SCIP_CONS* cons /**< constraint */
8298  )
8299 {
8300  assert(cons != NULL);
8301 
8302  return (cons->updatemarkpropagate || (cons->markpropagate && !cons->updateunmarkpropagate));
8303 }
8304 
8305 /** returns TRUE iff constraint should be propagated during node processing */
8307  SCIP_CONS* cons /**< constraint */
8308  )
8309 {
8310  assert(cons != NULL);
8311 
8312  return cons->propagate;
8313 }
8314 
8315 /** returns TRUE iff constraint is globally valid */
8317  SCIP_CONS* cons /**< constraint */
8318  )
8319 {
8320  assert(cons != NULL);
8321 
8322  return !cons->local;
8323 }
8324 
8325 /** returns TRUE iff constraint is only locally valid or not added to any (sub)problem */
8327  SCIP_CONS* cons /**< constraint */
8328  )
8329 {
8330  assert(cons != NULL);
8331 
8332  return cons->local;
8333 }
8334 
8335 /** returns TRUE iff constraint is modifiable (subject to column generation) */
8337  SCIP_CONS* cons /**< constraint */
8338  )
8339 {
8340  assert(cons != NULL);
8341 
8342  return cons->modifiable;
8343 }
8344 
8345 /** returns TRUE iff constraint is subject to aging */
8347  SCIP_CONS* cons /**< constraint */
8348  )
8349 {
8350  assert(cons != NULL);
8351 
8352  return cons->dynamic;
8353 }
8354 
8355 /** returns TRUE iff constraint's relaxation should be removed from the LP due to aging or cleanup */
8357  SCIP_CONS* cons /**< constraint */
8358  )
8359 {
8360  assert(cons != NULL);
8361 
8362  return cons->removable;
8363 }
8364 
8365 /** returns TRUE iff constraint's relaxation should be removed from the LP due to aging or cleanup */
8367  SCIP_CONS* cons /**< constraint */
8368  )
8369 {
8370  assert(cons != NULL);
8371 
8372  return cons->stickingatnode;
8373 }
8374 
8375 /** returns TRUE iff constraint belongs to the global problem */
8377  SCIP_CONS* cons /**< constraint */
8378  )
8379 {
8380  assert(cons != NULL);
8381 
8382  return (cons->addconssetchg == NULL && cons->addarraypos >= 0);
8383 }
8384 
8385 /** returns TRUE iff constraint is belonging to original space */
8387  SCIP_CONS* cons /**< constraint */
8388  )
8389 {
8390  assert(cons != NULL);
8391 
8392  return cons->original;
8393 }
8394 
8395 /** returns TRUE iff constraint is belonging to transformed space */
8397  SCIP_CONS* cons /**< constraint */
8398  )
8399 {
8400  assert(cons != NULL);
8401 
8402  return !cons->original;
8403 }
8404 
8405 /** returns TRUE iff roundings for variables in constraint are locked */
8407  SCIP_CONS* cons /**< constraint */
8408  )
8409 {
8410  assert(cons != NULL);
8411 
8412  return (cons->nlockspos[SCIP_LOCKTYPE_MODEL] > 0);
8413 }
8414 
8415 /** returns TRUE iff roundings for variables in constraint's negation are locked */
8417  SCIP_CONS* cons /**< constraint */
8418  )
8419 {
8420  assert(cons != NULL);
8421 
8422  return (cons->nlocksneg[SCIP_LOCKTYPE_MODEL] > 0);
8423 }
8424 
8425 /** returns TRUE iff roundings for variables in constraint or in constraint's negation are locked */
8427  SCIP_CONS* cons /**< constraint */
8428  )
8429 {
8430  assert(cons != NULL);
8431 
8432  return (cons->nlockspos[SCIP_LOCKTYPE_MODEL] > 0 || cons->nlocksneg[SCIP_LOCKTYPE_MODEL] > 0);
8433 }
8434 
8435 /** get number of times the roundings for variables in constraint are locked */
8437  SCIP_CONS* cons /**< constraint */
8438  )
8439 {
8440  assert(cons != NULL);
8441 
8442  return cons->nlockspos[SCIP_LOCKTYPE_MODEL];
8443 }
8444 
8445 /** get number of times the roundings for variables in constraint's negation are locked */
8447  SCIP_CONS* cons /**< constraint */
8448  )
8449 {
8450  assert(cons != NULL);
8451 
8452  return cons->nlocksneg[SCIP_LOCKTYPE_MODEL];
8453 }
8454 
8455 /** returns TRUE iff roundings of the given locktype for variables in constraint are locked */
8457  SCIP_CONS* cons, /**< constraint */
8458  SCIP_LOCKTYPE locktype /**< variable lock type */
8459  )
8460 {
8461  assert(cons != NULL);
8462  assert((int)locktype >= 0 && (int)locktype < (int)NLOCKTYPES); /*lint !e685 !e568 !e587 !e650*/
8463 
8464  return (cons->nlockspos[locktype] > 0);
8465 }
8466 
8467 /** returns TRUE iff roundings of the given locktype for variables in constraint are locked */
8469  SCIP_CONS* cons, /**< constraint */
8470  SCIP_LOCKTYPE locktype /**< variable lock type */
8471  )
8472 {
8473  assert(cons != NULL);
8474  assert((int)locktype >= 0 && (int)locktype < (int)NLOCKTYPES); /*lint !e685 !e568 !e587 !e650*/
8475 
8476  return (cons->nlocksneg[locktype] > 0);
8477 }
8478 
8479 /** returns TRUE iff roundings of given locktype for variables in constraint or in constraint's negation are locked */
8481  SCIP_CONS* cons, /**< constraint */
8482  SCIP_LOCKTYPE locktype /**< variable lock type */
8483  )
8484 {
8485  assert(cons != NULL);
8486  assert((int)locktype >= 0 && (int)locktype < (int)NLOCKTYPES); /*lint !e685 !e568 !e587 !e650*/
8487 
8488  return (cons->nlockspos[locktype] > 0 || cons->nlocksneg[locktype] > 0);
8489 }
8490 
8491 /** get number of times the roundings of given locktype for variables in constraint are locked */
8493  SCIP_CONS* cons, /**< constraint */
8494  SCIP_LOCKTYPE locktype /**< variable lock type */
8495  )
8496 {
8497  assert(cons != NULL);
8498  assert((int)locktype >= 0 && (int)locktype < (int)NLOCKTYPES); /*lint !e685 !e568 !e587 !e650*/
8499 
8500  return cons->nlockspos[locktype];
8501 }
8502 
8503 /** get number of times the roundings of given locktype for variables in constraint's negation are locked */
8505  SCIP_CONS* cons, /**< constraint */
8506  SCIP_LOCKTYPE locktype /**< variable lock type */
8507  )
8508 {
8509  assert(cons != NULL);
8510  assert((int)locktype >= 0 && (int)locktype < (int)NLOCKTYPES); /*lint !e685 !e568 !e587 !e650*/
8511 
8512  return cons->nlocksneg[locktype];
8513 }
8514 
8515 /** returns if the constraint was already added to a SCIP instance */
8517  SCIP_CONS* cons /**< constraint */
8518  )
8519 {
8520  assert(cons != NULL);
8521 
8522  return (cons->addarraypos >= 0);
8523 }
8524 
8525 /** adds locks to (dis-)allow upgrading of constraint */
8527  SCIP_CONS* cons, /**< constraint to add locks */
8528  int nlocks /**< number of locks to add */
8529  )
8530 {
8531  assert(cons != NULL);
8532 
8533  assert(cons->nupgradelocks < (1 << 28) - nlocks); /*lint !e574*/
8534  cons->nupgradelocks += (unsigned int) nlocks;
8535 }
8536 
8537 /** gets number of locks against upgrading the constraint, 0 means this constraint can be upgraded */
8539  SCIP_CONS* cons /**< constraint */
8540  )
8541 {
8542  assert(cons != NULL);
8543 
8544  return (int) cons->nupgradelocks;
8545 }
enum SCIP_Result SCIP_RESULT
Definition: type_result.h:52
SCIP_CONS ** updateconss
Definition: struct_cons.h:191
int SCIPconsGetPos(SCIP_CONS *cons)
Definition: cons.c:8099
SCIP_RETCODE SCIPconsSetChecked(SCIP_CONS *cons, SCIP_SET *set, SCIP_Bool check)
Definition: cons.c:6568
SCIP_RETCODE SCIPconsDelete(SCIP_CONS *cons, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_PROB *prob, SCIP_REOPT *reopt)
Definition: cons.c:6354
enum SCIP_BoundType SCIP_BOUNDTYPE
Definition: type_lp.h:50
SCIP_PROPTIMING proptiming
Definition: struct_cons.h:275
void SCIPconshdlrSetData(SCIP_CONSHDLR *conshdlr, SCIP_CONSHDLRDATA *conshdlrdata)
Definition: cons.c:4209
int SCIPconshdlrGetNCheckConss(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4614
unsigned int conflict
Definition: struct_cons.h:78
enum SCIP_LinConstype SCIP_LINCONSTYPE
Definition: type_cons.h:81
SCIP_RETCODE SCIPconsUnmarkPropagate(SCIP_CONS *cons, SCIP_SET *set)
Definition: cons.c:7035
SCIP_RETCODE SCIPconshdlrEnforcePseudoSol(SCIP_CONSHDLR *conshdlr, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_TREE *tree, SCIP_BRANCHCAND *branchcand, SCIP_Bool solinfeasible, SCIP_Bool objinfeasible, SCIP_Bool forced, SCIP_RESULT *result)
Definition: cons.c:3546
int lastnchgvartypes
Definition: struct_cons.h:246
int nlocksneg[NLOCKTYPES]
Definition: struct_cons.h:55
SCIP_Longint nenfolpcalls
Definition: struct_cons.h:120
SCIP_RETCODE SCIPconsIncAge(SCIP_CONS *cons, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_PROB *prob, SCIP_REOPT *reopt)
Definition: cons.c:7131
int initconsspos
Definition: struct_cons.h:49
SCIP_Bool SCIPconsIsLockedType(SCIP_CONS *cons, SCIP_LOCKTYPE locktype)
Definition: cons.c:8482
#define BMSfreeBlockMemoryArrayNull(mem, ptr, num)
Definition: memory.h:459
SCIP_Bool SCIPconshdlrWasSolSeparationDelayed(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:5168
SCIP_Longint nsepacalls
Definition: struct_cons.h:119
SCIP_Bool SCIPconshdlrNeedsCons(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:5118
SCIP_Bool SCIPconsIsLockedNeg(SCIP_CONS *cons)
Definition: cons.c:8418
SCIP_Longint lastsepalpcount
Definition: struct_cons.h:202
SCIP_Bool SCIPconsIsEnabled(SCIP_CONS *cons)
Definition: cons.c:8186
void SCIPlinConsStatsFree(SCIP *scip, SCIP_LINCONSSTATS **linconsstats)
Definition: cons.c:7939
int SCIPlinConsStatsGetSum(SCIP_LINCONSSTATS *linconsstats)
Definition: cons.c:7973
unsigned int updatemarkpropagate
Definition: struct_cons.h:96
static void conshdlrDelEnfocons(SCIP_CONSHDLR *conshdlr, SCIP_CONS *cons)
Definition: cons.c:1029
SCIP_RETCODE SCIPconshdlrEnforceLPSol(SCIP_CONSHDLR *conshdlr, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_TREE *tree, SCIP_SEPASTORE *sepastore, SCIP_Bool solinfeasible, SCIP_RESULT *result)
Definition: cons.c:3340
unsigned int propenabled
Definition: struct_cons.h:65
static SCIP_RETCODE conshdlrEnsureInitconssMem(SCIP_CONSHDLR *conshdlr, SCIP_SET *set, int num)
Definition: cons.c:93
SCIP_CONS ** SCIPconshdlrGetUpdateConss(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4584
static SCIP_RETCODE ensurePropagationStorage(SCIP_SET *set, SCIP_CONSHDLR *conshdlr, int num)
Definition: cons.c:7802
unsigned int updatepropdisable
Definition: struct_cons.h:92
int nusefulenfoconss
Definition: struct_cons.h:228
SCIP_Longint ncutoffs
Definition: struct_cons.h:126
SCIP_RETCODE SCIPconssetchgFree(SCIP_CONSSETCHG **conssetchg, BMS_BLKMEM *blkmem, SCIP_SET *set)
Definition: cons.c:5308
SCIP_RETCODE SCIPconsActivate(SCIP_CONS *cons, SCIP_SET *set, SCIP_STAT *stat, int depth, SCIP_Bool focusnode)
Definition: cons.c:6733
#define BMSfreeMemoryArrayNull(ptr)
Definition: memory.h:140
SCIP_Real SCIPgetVarLbAtIndex(SCIP *scip, SCIP_VAR *var, SCIP_BDCHGIDX *bdchgidx, SCIP_Bool after)
Definition: scip_var.c:1996
static SCIP_RETCODE conshdlrEnsureCheckconssMem(SCIP_CONSHDLR *conshdlr, SCIP_SET *set, int num)
Definition: cons.c:165
SCIP_Bool sepasolwasdelayed
Definition: struct_cons.h:270
SCIP_CONS ** enfoconss
Definition: struct_cons.h:185
unsigned int active
Definition: struct_cons.h:73
internal methods for branch and bound tree
SCIP_Bool SCIPconsIsObsolete(SCIP_CONS *cons)
Definition: cons.c:8228
SCIP_RETCODE SCIPconshdlrExit(SCIP_CONSHDLR *conshdlr, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat)
Definition: cons.c:2502
unsigned int dynamic
Definition: struct_cons.h:68
SCIP_Real SCIPconshdlrGetSepaTime(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4698
static SCIP_RETCODE conssetchgDelAddedCons(SCIP_CONSSETCHG *conssetchg, BMS_BLKMEM *blkmem, SCIP_SET *set, int arraypos)
Definition: cons.c:5457
static SCIP_RETCODE conshdlrDisableConsSeparation(SCIP_CONSHDLR *conshdlr, SCIP_CONS *cons)
Definition: cons.c:1310
void SCIPconshdlrSetPrint(SCIP_CONSHDLR *conshdlr, SCIP_DECL_CONSPRINT((*consprint)))
Definition: cons.c:4491
#define AGERESETAVG_INIT
Definition: cons.c:48
SCIP_Bool SCIPconsIsLocal(SCIP_CONS *cons)
Definition: cons.c:8328
SCIP_CONS ** conss
Definition: struct_cons.h:179
SCIP_CONS ** addedconss
Definition: struct_cons.h:108
SCIP_Longint relaxcount
Definition: struct_stat.h:179
void SCIPconsSetDynamic(SCIP_CONS *cons, SCIP_Bool dynamic)
Definition: cons.c:6675
void SCIPconsSetStickingAtNode(SCIP_CONS *cons, SCIP_Bool stickingatnode)
Definition: cons.c:6697
SCIP_Longint SCIPconshdlrGetNChildren(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4918
SCIP_CLOCK * setuptime
Definition: struct_cons.h:192
SCIP_Longint lastenfopsdomchgcount
Definition: struct_cons.h:135
static void conshdlrDelCons(SCIP_CONSHDLR *conshdlr, SCIP_CONS *cons)
Definition: cons.c:791
SCIP_Bool SCIPconsIsChecked(SCIP_CONS *cons)
Definition: cons.c:8288
SCIP_DECL_CONSSEPALP(ConshdlrSubtour::scip_sepalp)
SCIP_RETCODE SCIPconsSepasol(SCIP_CONS *cons, SCIP_SET *set, SCIP_SOL *sol, SCIP_RESULT *result)
Definition: cons.c:7534
int SCIPlinConsStatsGetTypeCount(SCIP_LINCONSSTATS *linconsstats, SCIP_LINCONSTYPE linconstype)
Definition: cons.c:7960
static SCIP_Bool consExceedsAgelimit(SCIP_CONS *cons, SCIP_SET *set)
Definition: cons.c:351
unsigned int updatesepaenable
Definition: struct_cons.h:89
SCIP_Longint ninitconssadded
Definition: struct_stat.h:114
int lastnusefulenfoconss
Definition: struct_cons.h:243
#define SCIP_MAXSTRLEN
Definition: def.h:273
#define SCIP_DECL_CONSINITPRE(x)
Definition: type_cons.h:146
int storedpropconsssize
Definition: struct_cons.h:236
SCIP_Longint SCIPconshdlrGetNEnfoPSCalls(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4798
SCIP_Longint SCIPconshdlrGetNEnfoRelaxCalls(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4808
int validdepth
Definition: struct_cons.h:57
internal methods for clocks and timing issues
int SCIPbranchcandGetNPseudoCands(SCIP_BRANCHCAND *branchcand)
Definition: branch.c:852
int nusefulsepaconss
Definition: struct_cons.h:225
#define SCIP_DECL_CONSGETDIVEBDCHGS(x)
Definition: type_cons.h:910
#define SCIP_DECL_CONSPRESOL(x)
Definition: type_cons.h:551
void SCIPconshdlrSetDeactive(SCIP_CONSHDLR *conshdlr, SCIP_DECL_CONSDEACTIVE((*consdeactive)))
Definition: cons.c:4447
static SCIP_RETCODE conshdlrEnsureEnfoconssMem(SCIP_CONSHDLR *conshdlr, SCIP_SET *set, int num)
Definition: cons.c:141
void SCIPconshdlrSetInitpre(SCIP_CONSHDLR *conshdlr, SCIP_DECL_CONSINITPRE((*consinitpre)))
Definition: cons.c:4341
SCIP_Bool SCIPconsIsInProb(SCIP_CONS *cons)
Definition: cons.c:8378
int SCIPconshdlrGetSepaPriority(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:5058
SCIP_RETCODE SCIPconsParse(SCIP_CONS **cons, SCIP_SET *set, SCIP_MESSAGEHDLR *messagehdlr, const char *str, SCIP_Bool initial, SCIP_Bool separate, SCIP_Bool enforce, SCIP_Bool check, SCIP_Bool propagate, SCIP_Bool local, SCIP_Bool modifiable, SCIP_Bool dynamic, SCIP_Bool removable, SCIP_Bool stickingatnode, SCIP_Bool *success)
Definition: cons.c:6013
static SCIP_RETCODE conshdlrDeactivateCons(SCIP_CONSHDLR *conshdlr, SCIP_SET *set, SCIP_STAT *stat, SCIP_CONS *cons)
Definition: cons.c:1602
int SCIPconshdlrGetNChgBds(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4978
#define SCIP_CALL_FINALLY(x, y)
Definition: def.h:406
void SCIPconshdlrSetInitsol(SCIP_CONSHDLR *conshdlr, SCIP_DECL_CONSINITSOL((*consinitsol)))
Definition: cons.c:4319
SCIP_Longint ndomredsfound
Definition: struct_cons.h:130
int SCIPconsGetValidDepth(SCIP_CONS *cons)
Definition: cons.c:8172
void SCIPconshdlrSetPropTiming(SCIP_CONSHDLR *conshdlr, SCIP_PROPTIMING proptiming)
Definition: cons.c:5218
SCIP_Bool duringprop
Definition: struct_cons.h:274
SCIP_Bool SCIPconshdlrIsPropagationDelayed(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:5148
static SCIP_RETCODE conshdlrAddSepacons(SCIP_CONSHDLR *conshdlr, SCIP_SET *set, SCIP_CONS *cons)
Definition: cons.c:882
void SCIPconssetchgGetAddedConsData(SCIP_CONSSETCHG *conssetchg, SCIP_CONS ***conss, int *nconss)
Definition: cons.c:5532
SCIP_Longint lastenfopsnode
Definition: struct_cons.h:138
unsigned int update
Definition: struct_cons.h:83
SCIP_Bool SCIPconsIsAdded(SCIP_CONS *cons)
Definition: cons.c:8518
int lastnusefulsepaconss
Definition: struct_cons.h:242
int SCIPconshdlrGetNConss(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4594
int SCIPconsGetNUses(SCIP_CONS *cons)
Definition: cons.c:8129
int propconsspos
Definition: struct_cons.h:53
SCIP_Bool SCIPconsIsSeparationEnabled(SCIP_CONS *cons)
Definition: cons.c:8196
SCIP_Longint nenforelaxcalls
Definition: struct_cons.h:122
SCIP_DECL_CONSENFOPS(ConshdlrSubtour::scip_enfops)
void SCIPconsMarkConflict(SCIP_CONS *cons)
Definition: cons.c:6995
static SCIP_RETCODE conshdlrActivateCons(SCIP_CONSHDLR *conshdlr, SCIP_SET *set, SCIP_STAT *stat, SCIP_CONS *cons, int depth, SCIP_Bool focusnode)
Definition: cons.c:1527
SCIP_Longint lastpropdomchgcount
Definition: struct_cons.h:132
SCIP_Longint nholechgs
Definition: struct_stat.h:107
#define SCIP_PROPTIMING_DURINGLPLOOP
Definition: type_timing.h:57
#define NLOCKTYPES
Definition: type_var.h:81
SCIP_Bool SCIPconsIsActive(SCIP_CONS *cons)
Definition: cons.c:8150
#define SCIP_DECL_CONSRESPROP(x)
Definition: type_cons.h:602
void SCIPclockStop(SCIP_CLOCK *clck, SCIP_SET *set)
Definition: clock.c:351
SCIP_RETCODE SCIPconsGetVars(SCIP_CONS *cons, SCIP_SET *set, SCIP_VAR **vars, int varssize, SCIP_Bool *success)
Definition: cons.c:6286
datastructures for constraints and constraint handlers
SCIP_CLOCK * resproptime
Definition: struct_cons.h:201
unsigned int check
Definition: struct_cons.h:62
static void conshdlrDelCheckcons(SCIP_CONSHDLR *conshdlr, SCIP_CONS *cons)
Definition: cons.c:1125
SCIP_RETCODE SCIPconsSetSeparated(SCIP_CONS *cons, SCIP_SET *set, SCIP_Bool separate)
Definition: cons.c:6498
SCIP_CONSDATA * consdata
Definition: struct_cons.h:42
#define FALSE
Definition: def.h:73
void SCIPstrCopySection(const char *str, char startchar, char endchar, char *token, int size, char **endptr)
Definition: misc.c:10721
static SCIP_RETCODE doConshdlrCreate(SCIP_CONSHDLR **conshdlr, SCIP_SET *set, SCIP_MESSAGEHDLR *messagehdlr, BMS_BLKMEM *blkmem, const char *name, const char *desc, int sepapriority, int enfopriority, int checkpriority, int sepafreq, int propfreq, int eagerfreq, int maxprerounds, SCIP_Bool delaysepa, SCIP_Bool delayprop, SCIP_Bool needscons, SCIP_PROPTIMING proptiming, SCIP_PRESOLTIMING presoltiming, SCIP_DECL_CONSHDLRCOPY((*conshdlrcopy)), SCIP_DECL_CONSFREE((*consfree)), SCIP_DECL_CONSINIT((*consinit)), SCIP_DECL_CONSEXIT((*consexit)), SCIP_DECL_CONSINITPRE((*consinitpre)), SCIP_DECL_CONSEXITPRE((*consexitpre)), SCIP_DECL_CONSINITSOL((*consinitsol)), SCIP_DECL_CONSEXITSOL((*consexitsol)), SCIP_DECL_CONSDELETE((*consdelete)), SCIP_DECL_CONSTRANS((*constrans)), SCIP_DECL_CONSINITLP((*consinitlp)), SCIP_DECL_CONSSEPALP((*conssepalp)), SCIP_DECL_CONSSEPASOL((*conssepasol)), SCIP_DECL_CONSENFOLP((*consenfolp)), SCIP_DECL_CONSENFORELAX((*consenforelax)), SCIP_DECL_CONSENFOPS((*consenfops)), SCIP_DECL_CONSCHECK((*conscheck)), SCIP_DECL_CONSPROP((*consprop)), SCIP_DECL_CONSPRESOL((*conspresol)), SCIP_DECL_CONSRESPROP((*consresprop)), SCIP_DECL_CONSLOCK((*conslock)), SCIP_DECL_CONSACTIVE((*consactive)), SCIP_DECL_CONSDEACTIVE((*consdeactive)), SCIP_DECL_CONSENABLE((*consenable)), SCIP_DECL_CONSDISABLE((*consdisable)), SCIP_DECL_CONSDELVARS((*consdelvars)), SCIP_DECL_CONSPRINT((*consprint)), SCIP_DECL_CONSCOPY((*conscopy)), SCIP_DECL_CONSPARSE((*consparse)), SCIP_DECL_CONSGETVARS((*consgetvars)), SCIP_DECL_CONSGETNVARS((*consgetnvars)), SCIP_DECL_CONSGETDIVEBDCHGS((*consgetdivebdchgs)), SCIP_CONSHDLRDATA *conshdlrdata)
Definition: cons.c:1991
void SCIPclockStart(SCIP_CLOCK *clck, SCIP_SET *set)
Definition: clock.c:281
static SCIP_RETCODE conssetchgRelease(SCIP_CONSSETCHG *conssetchg, BMS_BLKMEM *blkmem, SCIP_SET *set)
Definition: cons.c:5278
unsigned int removable
Definition: struct_cons.h:69
SCIP_RETCODE SCIPconshdlrInitsol(SCIP_CONSHDLR *conshdlr, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat)
Definition: cons.c:2671
SCIP_RETCODE SCIPconshdlrInitLP(SCIP_CONSHDLR *conshdlr, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_TREE *tree, SCIP_Bool initkeptconss, SCIP_Bool *cutoff)
Definition: cons.c:2748
SCIP_RESULT lastenfolpresult
Definition: struct_cons.h:140
#define TRUE
Definition: def.h:72
enum SCIP_Retcode SCIP_RETCODE
Definition: type_retcode.h:54
#define AGERESETAVG_OBSOLETEAGE
Definition: cons.c:54
SCIP_Bool SCIPconsIsLockedPos(SCIP_CONS *cons)
Definition: cons.c:8408
int SCIPconsGetNLocksTypePos(SCIP_CONS *cons, SCIP_LOCKTYPE locktype)
Definition: cons.c:8494
SCIP_RESULT lastenforelaxresult
Definition: struct_cons.h:142
#define SCIP_DECL_CONSGETNVARS(x)
Definition: type_cons.h:875
int nenabledconss
Definition: struct_stat.h:228
void SCIPconshdlrSetFree(SCIP_CONSHDLR *conshdlr, SCIP_DECL_CONSFREE((*consfree)))
Definition: cons.c:4286
#define SCIP_PRESOLTIMING_EXHAUSTIVE
Definition: type_timing.h:45
unsigned int enabled
Definition: struct_cons.h:79
int SCIPtreeGetCurrentDepth(SCIP_TREE *tree)
Definition: tree.c:8380
SCIP_Bool SCIPconsIsInitial(SCIP_CONS *cons)
Definition: cons.c:8258
int nlockspos[NLOCKTYPES]
Definition: struct_cons.h:54
SCIP_RETCODE SCIPlinConsStatsCreate(SCIP *scip, SCIP_LINCONSSTATS **linconsstats)
Definition: cons.c:7926
static SCIP_RETCODE conshdlrEnsurePropconssMem(SCIP_CONSHDLR *conshdlr, SCIP_SET *set, int num)
Definition: cons.c:189
internal methods for branching rules and branching candidate storage
SCIP_Bool delayprop
Definition: struct_cons.h:267
SCIP_Real SCIPconshdlrGetStrongBranchPropTime(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4748
SCIP_CONS ** SCIPconshdlrGetEnfoConss(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4561
int SCIPsetCalcMemGrowSize(SCIP_SET *set, int num)
Definition: set.c:5573
SCIP_Real SCIPconshdlrGetEnfoRelaxTime(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4728
void SCIPconshdlrSetEnforelax(SCIP_CONSHDLR *conshdlr, SCIP_DECL_CONSENFORELAX((*consenforelax)))
Definition: cons.c:4260
SCIP_RETCODE SCIPconsEnableSeparation(SCIP_CONS *cons, SCIP_SET *set)
Definition: cons.c:6877
#define SCIP_DECL_CONSEXITSOL(x)
Definition: type_cons.h:206
void SCIPconshdlrSetCopy(SCIP_CONSHDLR *conshdlr, SCIP_DECL_CONSHDLRCOPY((*conshdlrcopy)), SCIP_DECL_CONSCOPY((*conscopy)))
Definition: cons.c:4271
static GRAPHNODE ** active
SCIP_Longint nconssfound
Definition: struct_cons.h:129
#define SCIPfreeBlockMemory(scip, ptr)
Definition: scip_mem.h:95
SCIP_RETCODE SCIPconsSetPropagated(SCIP_CONS *cons, SCIP_SET *set, SCIP_Bool propagate)
Definition: cons.c:6616
SCIP_Longint nchildren
Definition: struct_cons.h:131
SCIP_RETCODE SCIPconshdlrInit(SCIP_CONSHDLR *conshdlr, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat)
Definition: cons.c:2389
int SCIPconsGetNLocksTypeNeg(SCIP_CONS *cons, SCIP_LOCKTYPE locktype)
Definition: cons.c:8506
#define SCIPdebugMessage
Definition: pub_message.h:87
static void conshdlrUnmarkConsPropagate(SCIP_CONSHDLR *conshdlr, SCIP_CONS *cons)
Definition: cons.c:693
SCIP_RETCODE SCIPconshdlrSeparateLP(SCIP_CONSHDLR *conshdlr, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_SEPASTORE *sepastore, int depth, SCIP_Bool execdelayed, SCIP_RESULT *result)
Definition: cons.c:2855
SCIP_Longint SCIPconshdlrGetNSepaCalls(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4778
SCIP_DECL_CONSSEPASOL(ConshdlrSubtour::scip_sepasol)
void SCIPconsSetNamePointer(SCIP_CONS *cons, const char *name)
Definition: cons.c:6709
void SCIPconshdlrSetSepa(SCIP_CONSHDLR *conshdlr, SCIP_DECL_CONSSEPALP((*conssepalp)), SCIP_DECL_CONSSEPASOL((*conssepasol)), int sepafreq, int sepapriority, SCIP_Bool delaysepa)
Definition: cons.c:4220
SCIP_Longint lastenforelaxrelaxcount
Definition: struct_cons.h:204
unsigned int updateunmarkpropagate
Definition: struct_cons.h:97
SCIP_Bool SCIPreoptConsCanBeDeleted(SCIP_REOPT *reopt, SCIP_CONS *cons)
Definition: reopt.c:8338
int enfoconsspos
Definition: struct_cons.h:51
int SCIPconshdlrGetNAddHoles(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4988
void SCIPclockEnableOrDisable(SCIP_CLOCK *clck, SCIP_Bool enable)
Definition: clock.c:251
SCIP_DECL_CONSDELETE(ConshdlrSubtour::scip_delete)
SCIP_CLOCK * sepatime
Definition: struct_cons.h:194
#define BMSfreeMemory(ptr)
Definition: memory.h:137
#define SCIPallocBlockMemory(scip, ptr)
Definition: scip_mem.h:78
SCIP_Bool sepalpwasdelayed
Definition: struct_cons.h:269
SCIP_Bool duringsepa
Definition: struct_cons.h:273
SCIP_Real SCIPconshdlrGetSetupTime(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4678
int SCIPconshdlrGetMaxNActiveConss(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4928
SCIP_CONS * SCIPconsGetTransformed(SCIP_CONS *cons)
Definition: cons.c:6723
SCIP_CONS ** disabledconss
Definition: struct_cons.h:109
static void conshdlrDelSepacons(SCIP_CONSHDLR *conshdlr, SCIP_CONS *cons)
Definition: cons.c:926
#define SCIP_DECL_CONSINITLP(x)
Definition: type_cons.h:249
SCIP_RETCODE SCIPconsAddLocks(SCIP_CONS *cons, SCIP_SET *set, SCIP_LOCKTYPE locktype, int nlockspos, int nlocksneg)
Definition: cons.c:7253
Definition: heur_padm.c:125
SCIP_Bool SCIPconsIsLockedTypeNeg(SCIP_CONS *cons, SCIP_LOCKTYPE locktype)
Definition: cons.c:8470
int nusefulcheckconss
Definition: struct_cons.h:231
static SCIP_Bool conshdlrAreUpdatesDelayed(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:318
SCIP_Bool SCIPconshdlrDoesPresolve(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:5128
#define SCIP_PRESOLTIMING_FAST
Definition: type_timing.h:43
SCIP_CONS * transorigcons
Definition: struct_cons.h:43
SCIP_DECL_CONSENFOLP(ConshdlrSubtour::scip_enfolp)
SCIP_RETCODE SCIPconsResetAge(SCIP_CONS *cons, SCIP_SET *set)
Definition: cons.c:7152
SCIP_RETCODE SCIPconsActive(SCIP_CONS *cons, SCIP_SET *set)
Definition: cons.c:7733
int sepaconsspos
Definition: struct_cons.h:50
SCIP_Longint lastenfolpnode
Definition: struct_cons.h:137
int counter[SCIP_NLINCONSTYPES]
Definition: struct_cons.h:282
SCIP_CONSSETCHG * addconssetchg
Definition: struct_cons.h:45
SCIP_Longint ncheckcalls
Definition: struct_cons.h:124
SCIP_PROPTIMING SCIPconshdlrGetPropTiming(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:5208
SCIP_DECL_SORTPTRCOMP(SCIPconshdlrCompSepa)
Definition: cons.c:1951
SCIP_Bool SCIPconsIsLocked(SCIP_CONS *cons)
Definition: cons.c:8428
int activedepth
Definition: struct_cons.h:56
SCIP_DECL_CONSCHECK(ConshdlrSubtour::scip_check)
static SCIP_RETCODE conshdlrEnsureUpdateconssMem(SCIP_CONSHDLR *conshdlr, SCIP_SET *set, int num)
Definition: cons.c:213
static void conshdlrDelayUpdates(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:1878
unsigned int stickingatnode
Definition: struct_cons.h:70
#define AGERESETAVG_MIN
Definition: cons.c:49
static SCIP_RETCODE conshdlrForceUpdates(SCIP_CONSHDLR *conshdlr, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat)
Definition: cons.c:1894
#define SCIP_DECL_CONSINITSOL(x)
Definition: type_cons.h:191
SCIP_CLOCK * enforelaxtime
Definition: struct_cons.h:197
SCIP_Real SCIPconshdlrGetPresolTime(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4688
unsigned int updateinsert
Definition: struct_cons.h:84
SCIP_RETCODE SCIPconsDisableSeparation(SCIP_CONS *cons, SCIP_SET *set)
Definition: cons.c:6907
unsigned int deleted
Definition: struct_cons.h:82
static SCIP_RETCODE conssetchgDelDisabledCons(SCIP_CONSSETCHG *conssetchg, BMS_BLKMEM *blkmem, SCIP_SET *set, int arraypos)
Definition: cons.c:5503
SCIP_RETCODE SCIPconshdlrCopyInclude(SCIP_CONSHDLR *conshdlr, SCIP_SET *set, SCIP_Bool *valid)
Definition: cons.c:1969
SCIP_CONSHDLR * SCIPsetFindConshdlr(SCIP_SET *set, const char *name)
Definition: set.c:3950
SCIP_Bool SCIPtreeProbing(SCIP_TREE *tree)
Definition: tree.c:8262
int storednmarkedpropconss
Definition: struct_cons.h:237
void SCIPconshdlrSetExitsol(SCIP_CONSHDLR *conshdlr, SCIP_DECL_CONSEXITSOL((*consexitsol)))
Definition: cons.c:4330
SCIP_RETCODE SCIPconshdlrGetDiveBoundChanges(SCIP_CONSHDLR *conshdlr, SCIP_SET *set, SCIP_DIVESET *diveset, SCIP_SOL *sol, SCIP_Bool *success, SCIP_Bool *infeasible)
Definition: cons.c:3519
SCIP_RETCODE SCIPconsEnablePropagation(SCIP_CONS *cons, SCIP_SET *set)
Definition: cons.c:6935
#define BMSduplicateBlockMemoryArray(mem, ptr, source, num)
Definition: memory.h:453
#define SCIP_PRESOLTIMING_MEDIUM
Definition: type_timing.h:44
SCIP_RETCODE SCIPconssetchgApply(SCIP_CONSSETCHG *conssetchg, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, int depth, SCIP_Bool focusnode)
Definition: cons.c:5546
unsigned int sepaenabled
Definition: struct_cons.h:64
void SCIPconshdlrEnableOrDisableClocks(SCIP_CONSHDLR *conshdlr, SCIP_Bool enable)
Definition: cons.c:4658
enum SCIP_LockType SCIP_LOCKTYPE
Definition: type_var.h:87
unsigned int updatepropenable
Definition: struct_cons.h:91
SCIP_CLOCK * presoltime
Definition: struct_cons.h:193
static SCIP_RETCODE conshdlrAddCons(SCIP_CONSHDLR *conshdlr, SCIP_SET *set, SCIP_CONS *cons)
Definition: cons.c:765
internal methods for storing and manipulating the main problem
void SCIPmessagePrintError(const char *formatstr,...)
Definition: message.c:782
SCIP_RETCODE SCIPconsResprop(SCIP_CONS *cons, SCIP_SET *set, SCIP_VAR *infervar, int inferinfo, SCIP_BOUNDTYPE boundtype, SCIP_BDCHGIDX *bdchgidx, SCIP_Real relaxedbd, SCIP_RESULT *result)
Definition: cons.c:7617
#define SCIPerrorMessage
Definition: pub_message.h:55
SCIP_RETCODE SCIPconsTransform(SCIP_CONS *origcons, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_CONS **transcons)
Definition: cons.c:6414
SCIP_Longint SCIPconshdlrGetNEnfoLPCalls(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4788
SCIP_RETCODE SCIPconshdlrCreate(SCIP_CONSHDLR **conshdlr, SCIP_SET *set, SCIP_MESSAGEHDLR *messagehdlr, BMS_BLKMEM *blkmem, const char *name, const char *desc, int sepapriority, int enfopriority, int checkpriority, int sepafreq, int propfreq, int eagerfreq, int maxprerounds, SCIP_Bool delaysepa, SCIP_Bool delayprop, SCIP_Bool needscons, SCIP_PROPTIMING proptiming, SCIP_PRESOLTIMING presoltiming, SCIP_DECL_CONSHDLRCOPY((*conshdlrcopy)), SCIP_DECL_CONSFREE((*consfree)), SCIP_DECL_CONSINIT((*consinit)), SCIP_DECL_CONSEXIT((*consexit)), SCIP_DECL_CONSINITPRE((*consinitpre)), SCIP_DECL_CONSEXITPRE((*consexitpre)), SCIP_DECL_CONSINITSOL((*consinitsol)), SCIP_DECL_CONSEXITSOL((*consexitsol)), SCIP_DECL_CONSDELETE((*consdelete)), SCIP_DECL_CONSTRANS((*constrans)), SCIP_DECL_CONSINITLP((*consinitlp)), SCIP_DECL_CONSSEPALP((*conssepalp)), SCIP_DECL_CONSSEPASOL((*conssepasol)), SCIP_DECL_CONSENFOLP((*consenfolp)), SCIP_DECL_CONSENFORELAX((*consenforelax)), SCIP_DECL_CONSENFOPS((*consenfops)), SCIP_DECL_CONSCHECK((*conscheck)), SCIP_DECL_CONSPROP((*consprop)), SCIP_DECL_CONSPRESOL((*conspresol)), SCIP_DECL_CONSRESPROP((*consresprop)), SCIP_DECL_CONSLOCK((*conslock)), SCIP_DECL_CONSACTIVE((*consactive)), SCIP_DECL_CONSDEACTIVE((*consdeactive)), SCIP_DECL_CONSENABLE((*consenable)), SCIP_DECL_CONSDISABLE((*consdisable)), SCIP_DECL_CONSDELVARS((*consdelvars)), SCIP_DECL_CONSPRINT((*consprint)), SCIP_DECL_CONSCOPY((*conscopy)), SCIP_DECL_CONSPARSE((*consparse)), SCIP_DECL_CONSGETVARS((*consgetvars)), SCIP_DECL_CONSGETNVARS((*consgetnvars)), SCIP_DECL_CONSGETDIVEBDCHGS((*consgetdivebdchgs)), SCIP_CONSHDLRDATA *conshdlrdata)
Definition: cons.c:2269
SCIP_Longint lpcount
Definition: struct_stat.h:178
unsigned int obsolete
Definition: struct_cons.h:80
#define SCIP_DECL_CONSPARSE(x)
Definition: type_cons.h:835
static SCIP_RETCODE conshdlrEnableConsPropagation(SCIP_CONSHDLR *conshdlr, SCIP_SET *set, SCIP_CONS *cons)
Definition: cons.c:1339
int SCIPconshdlrGetNEnfoConss(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4604
static SCIP_Real conshdlrGetAgeresetavg(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:327
void SCIPclockReset(SCIP_CLOCK *clck)
Definition: clock.c:200
void SCIPconshdlrSetPresolTiming(SCIP_CONSHDLR *conshdlr, SCIP_PRESOLTIMING presoltiming)
Definition: cons.c:5240
static void conshdlrMarkConsPropagate(SCIP_CONSHDLR *conshdlr, SCIP_CONS *cons)
Definition: cons.c:618
#define SCIP_DECL_CONSDEACTIVE(x)
Definition: type_cons.h:696
static SCIP_RETCODE conshdlrAddUpdateCons(SCIP_CONSHDLR *conshdlr, SCIP_SET *set, SCIP_CONS *cons)
Definition: cons.c:1920
SCIP_RETCODE SCIPconsProp(SCIP_CONS *cons, SCIP_SET *set, SCIP_PROPTIMING proptiming, SCIP_RESULT *result)
Definition: cons.c:7577
void SCIPconshdlrSetProp(SCIP_CONSHDLR *conshdlr, SCIP_DECL_CONSPROP((*consprop)), int propfreq, SCIP_Bool delayprop, SCIP_PROPTIMING timingmask)
Definition: cons.c:4241
SCIP_Bool SCIPconsIsPropagationEnabled(SCIP_CONS *cons)
Definition: cons.c:8207
int SCIPconshdlrGetPropFreq(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:5098
SCIP_RETCODE SCIPconsDeactive(SCIP_CONS *cons, SCIP_SET *set)
Definition: cons.c:7757
SCIP_CONS ** storedpropconss
Definition: struct_cons.h:188
SCIP_RETCODE SCIPconshdlrDelVars(SCIP_CONSHDLR *conshdlr, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat)
Definition: cons.c:4118
int SCIPconshdlrGetStartNActiveConss(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4938
SCIP_CONS ** SCIPconshdlrGetCheckConss(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4571
SCIP_CLOCK * enfopstime
Definition: struct_cons.h:196
static SCIP_Bool consExceedsObsoleteage(SCIP_CONS *cons, SCIP_SET *set)
Definition: cons.c:366
int SCIPsepastoreGetNCuts(SCIP_SEPASTORE *sepastore)
Definition: sepastore.c:1091
int SCIPconshdlrGetNEnabledConss(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4638
SCIP_RETCODE SCIPconshdlrInitpre(SCIP_CONSHDLR *conshdlr, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat)
Definition: cons.c:2545
SCIP_CONS ** initconss
Definition: struct_cons.h:183
SCIP_Bool SCIPconsIsUpdatedeactivate(SCIP_CONS *cons)
Definition: cons.c:8160
SCIP_Real SCIPclockGetTime(SCIP_CLOCK *clck)
Definition: clock.c:429
int SCIPconshdlrGetNUpdateConss(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4648
SCIP_DECL_CONSTRANS(ConshdlrSubtour::scip_trans)
unsigned int modifiable
Definition: struct_cons.h:67
void SCIPmessagePrintWarning(SCIP_MESSAGEHDLR *messagehdlr, const char *formatstr,...)
Definition: message.c:418
void SCIPconshdlrSetEnable(SCIP_CONSHDLR *conshdlr, SCIP_DECL_CONSENABLE((*consenable)))
Definition: cons.c:4458
SCIP_RETCODE SCIPconsChgName(SCIP_CONS *cons, BMS_BLKMEM *blkmem, const char *name)
Definition: cons.c:6120
#define NULL
Definition: lpi_spx1.cpp:155
#define SCIP_DECL_CONSDISABLE(x)
Definition: type_cons.h:726
void SCIPconshdlrSetExit(SCIP_CONSHDLR *conshdlr, SCIP_DECL_CONSEXIT((*consexit)))
Definition: cons.c:4308
#define SCIP_PROPTIMING_ALWAYS
Definition: type_timing.h:64
SCIP_Longint npropcalls
Definition: struct_cons.h:123
static SCIP_RETCODE conshdlrProcessUpdates(SCIP_CONSHDLR *conshdlr, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat)
Definition: cons.c:1684
#define SCIP_PROPTIMING_AFTERLPLOOP
Definition: type_timing.h:58
SCIP_CONSDATA * SCIPconsGetData(SCIP_CONS *cons)
Definition: cons.c:8119
internal methods for global SCIP settings
SCIP_DECL_CONSDELVARS(ConshdlrSubtour::scip_delvars)
#define SCIP_CALL(x)
Definition: def.h:364
SCIP * scip
Definition: struct_cons.h:101
int SCIPconshdlrGetNAddConss(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:5008
unsigned int SCIP_PRESOLTIMING
Definition: type_timing.h:52
SCIP_RETCODE SCIPconshdlrEnforceRelaxSol(SCIP_CONSHDLR *conshdlr, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_TREE *tree, SCIP_SEPASTORE *sepastore, SCIP_SOL *relaxsol, SCIP_Bool solinfeasible, SCIP_RESULT *result)
Definition: cons.c:3141
SCIP_Bool needscons
Definition: struct_cons.h:268
#define SCIP_DECL_CONSENABLE(x)
Definition: type_cons.h:711
unsigned int updatesepadisable
Definition: struct_cons.h:90
SCIP_RETCODE SCIPconsDisable(SCIP_CONS *cons, SCIP_SET *set, SCIP_STAT *stat)
Definition: cons.c:6843
#define AGERESETAVG_AGELIMIT
Definition: cons.c:51
static SCIP_RETCODE conssetchgCreate(SCIP_CONSSETCHG **conssetchg, BMS_BLKMEM *blkmem)
Definition: cons.c:5257
static void conshdlrDelPropcons(SCIP_CONSHDLR *conshdlr, SCIP_CONS *cons)
Definition: cons.c:1220
SCIP_RETCODE SCIPsetAddIntParam(SCIP_SET *set, SCIP_MESSAGEHDLR *messagehdlr, BMS_BLKMEM *blkmem, const char *name, const char *desc, int *valueptr, SCIP_Bool isadvanced, int defaultvalue, int minvalue, int maxvalue, SCIP_DECL_PARAMCHGD((*paramchgd)), SCIP_PARAMDATA *paramdata)
Definition: set.c:2949
#define AGERESETAVG_DECAY
Definition: cons.c:50
SCIP_RESULT lastenfopsresult
Definition: struct_cons.h:141
void SCIPconshdlrSetActive(SCIP_CONSHDLR *conshdlr, SCIP_DECL_CONSACTIVE((*consactive)))
Definition: cons.c:4436
int SCIPconshdlrGetNUpgdConss(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:5018
struct SCIP_ConsData SCIP_CONSDATA
Definition: type_cons.h:56
SCIP_Bool SCIPconsIsConflict(SCIP_CONS *cons)
Definition: cons.c:8238
internal methods for storing separated cuts
void SCIPprintLinConsStats(SCIP *scip, FILE *file, SCIP_LINCONSSTATS *linconsstats)
Definition: cons.c:7999
SCIP_Bool SCIPconsIsLockedTypePos(SCIP_CONS *cons, SCIP_LOCKTYPE locktype)
Definition: cons.c:8458
static SCIP_RETCODE conshdlrEnableCons(SCIP_CONSHDLR *conshdlr, SCIP_SET *set, SCIP_STAT *stat, SCIP_CONS *cons)
Definition: cons.c:1399
#define BMSduplicateMemoryArray(ptr, source, num)
Definition: memory.h:135
SCIP_Longint nprobboundchgs
Definition: struct_stat.h:108
SCIP_Longint SCIPconshdlrGetNRespropCalls(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4838
SCIP_RETCODE SCIPconshdlrUnlockVars(SCIP_CONSHDLR *conshdlr, SCIP_SET *set)
Definition: cons.c:4164
#define checkConssArrays(conshdlr)
Definition: cons.c:242
int startnactiveconss
Definition: struct_cons.h:217
SCIP_RETCODE SCIPclockCreate(SCIP_CLOCK **clck, SCIP_CLOCKTYPE clocktype)
Definition: clock.c:161
int SCIPconshdlrGetSepaFreq(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:5088
void SCIPconshdlrIncNCutsFound(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4888
SCIP_Bool SCIPconsIsRemovable(SCIP_CONS *cons)
Definition: cons.c:8358
#define BMSfreeBlockMemory(mem, ptr)
Definition: memory.h:456
data structures and methods for collecting reoptimization information
internal methods for problem variables
#define SCIP_DECL_CONSGETVARS(x)
Definition: type_cons.h:857
#define SCIP_DECL_CONSEXIT(x)
Definition: type_cons.h:126
int lastnusefulpropconss
Definition: struct_cons.h:241
SCIP_PRESOLTIMING presoltiming
Definition: struct_cons.h:276
SCIP_Real SCIPconshdlrGetEnfoLPTime(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4708
SCIP_Bool SCIPconshdlrIsSeparationDelayed(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:5138
public data structures and miscellaneous methods
static void conshdlrDelInitcons(SCIP_CONSHDLR *conshdlr, SCIP_CONS *cons)
Definition: cons.c:847
SCIP_Bool delaysepa
Definition: struct_cons.h:266
SCIP_RETCODE SCIPconsGetNVars(SCIP_CONS *cons, SCIP_SET *set, int *nvars, SCIP_Bool *success)
Definition: cons.c:6322
static SCIP_RETCODE conshdlrMarkConsUseful(SCIP_CONSHDLR *conshdlr, SCIP_CONS *cons)
Definition: cons.c:513
SCIP_RETCODE SCIPconshdlrPresolve(SCIP_CONSHDLR *conshdlr, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_PRESOLTIMING timing, int nrounds, int *nfixedvars, int *naggrvars, int *nchgvartypes, int *nchgbds, int *naddholes, int *ndelconss, int *naddconss, int *nupgdconss, int *nchgcoefs, int *nchgsides, SCIP_RESULT *result)
Definition: cons.c:3975
int SCIPconsGetNLocksNeg(SCIP_CONS *cons)
Definition: cons.c:8448
SCIP_Longint ncutsfound
Definition: struct_cons.h:127
SCIP_Real SCIPconsGetAge(SCIP_CONS *cons)
Definition: cons.c:8248
#define SCIP_Bool
Definition: def.h:70
int SCIPconshdlrGetNFixedVars(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4948
SCIP_DECL_CONSPROP(ConshdlrSubtour::scip_prop)
void SCIPlinConsStatsReset(SCIP_LINCONSSTATS *linconsstats)
Definition: cons.c:7951
char * name
Definition: struct_cons.h:40
SCIP_RETCODE SCIPconsAddAge(SCIP_CONS *cons, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_PROB *prob, SCIP_Real deltaage, SCIP_REOPT *reopt)
Definition: cons.c:7072
SCIP_RETCODE SCIPconsEnfops(SCIP_CONS *cons, SCIP_SET *set, SCIP_Bool solinfeasible, SCIP_Bool objinfeasible, SCIP_RESULT *result)
Definition: cons.c:7337
static const char * paramname[]
Definition: lpi_msk.c:4958
void SCIPconsSetModifiable(SCIP_CONS *cons, SCIP_Bool modifiable)
Definition: cons.c:6664
SCIP_CONS ** propconss
Definition: struct_cons.h:187
unsigned int initial
Definition: struct_cons.h:59
SCIP_DECL_HASHGETKEY(SCIPhashGetKeyCons)
Definition: cons.c:7787
SCIP_RETCODE SCIPconsRelease(SCIP_CONS **cons, BMS_BLKMEM *blkmem, SCIP_SET *set)
Definition: cons.c:6207
int SCIPconshdlrGetNAggrVars(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4958
SCIP_EXPORT SCIP_Real SCIPvarGetUbGlobal(SCIP_VAR *var)
Definition: var.c:17677
SCIP_CONSHDLR * conshdlr
Definition: struct_cons.h:41
void SCIPconshdlrSetDelete(SCIP_CONSHDLR *conshdlr, SCIP_DECL_CONSDELETE((*consdelete)))
Definition: cons.c:4392
void SCIPconshdlrSetInit(SCIP_CONSHDLR *conshdlr, SCIP_DECL_CONSINIT((*consinit)))
Definition: cons.c:4297
void SCIPclockFree(SCIP_CLOCK **clck)
Definition: clock.c:176
#define BMSfreeBlockMemoryArray(mem, ptr, num)
Definition: memory.h:458
SCIP_Longint lastenforelaxdomchgcount
Definition: struct_cons.h:136
unsigned int updatefree
Definition: struct_cons.h:94
#define SCIP_DECL_CONSEXITPRE(x)
Definition: type_cons.h:170
SCIP_CONSHDLRDATA * SCIPconshdlrGetData(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4199
#define MAX(x, y)
Definition: tclique_def.h:83
void SCIPconshdlrIncNAppliedCuts(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4878
#define SCIP_NLINCONSTYPES
Definition: type_cons.h:83
int SCIPconsGetNLocksPos(SCIP_CONS *cons)
Definition: cons.c:8438
#define SCIPsetDebugMsg
Definition: set.h:1721
unsigned int separate
Definition: struct_cons.h:60
SCIP_Bool SCIPconsIsTransformed(SCIP_CONS *cons)
Definition: cons.c:8398
void SCIPconsSetRemovable(SCIP_CONS *cons, SCIP_Bool removable)
Definition: cons.c:6686
SCIP_RETCODE SCIPconshdlrSetPresol(SCIP_CONSHDLR *conshdlr, SCIP_DECL_CONSPRESOL((*conspresol)), int maxprerounds, SCIP_PRESOLTIMING presoltiming)
Definition: cons.c:4363
SCIP_RETCODE SCIPconshdlrsResetPropagationStatus(SCIP_SET *set, BMS_BLKMEM *blkmem, SCIP_CONSHDLR **conshdlrs, int nconshdlrs)
Definition: cons.c:7866
SCIP_RETCODE SCIPconshdlrPropagate(SCIP_CONSHDLR *conshdlr, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, int depth, SCIP_Bool fullpropagation, SCIP_Bool execdelayed, SCIP_Bool instrongbranching, SCIP_PROPTIMING proptiming, SCIP_RESULT *result)
Definition: cons.c:3804
SCIP_CONS ** checkconss
Definition: struct_cons.h:186
#define SCIP_PRESOLTIMING_MAX
Definition: type_timing.h:50
SCIP_Real SCIPconshdlrGetPropTime(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4738
int SCIPconshdlrGetNActiveConss(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4628
int nusefulpropconss
Definition: struct_cons.h:235
unsigned int updateactivate
Definition: struct_cons.h:85
const char * SCIPconshdlrGetDesc(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4189
int SCIPconshdlrGetNDelConss(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4998
#define BMScopyMemoryArray(ptr, source, num)
Definition: memory.h:126
SCIP_Bool SCIPconsIsSeparated(SCIP_CONS *cons)
Definition: cons.c:8268
unsigned int updateenable
Definition: struct_cons.h:87
static SCIP_RETCODE conshdlrEnableConsSeparation(SCIP_CONSHDLR *conshdlr, SCIP_SET *set, SCIP_CONS *cons)
Definition: cons.c:1279
int delayupdatecount
Definition: struct_cons.h:265
static SCIP_RETCODE conshdlrEnsureSepaconssMem(SCIP_CONSHDLR *conshdlr, SCIP_SET *set, int num)
Definition: cons.c:117
#define SCIP_PROPTIMING_BEFORELP
Definition: type_timing.h:56
int SCIPconsGetNUpgradeLocks(SCIP_CONS *cons)
Definition: cons.c:8540
int consspos
Definition: struct_cons.h:48
#define BMSclearMemory(ptr)
Definition: memory.h:121
SCIP_Bool SCIPconsIsDynamic(SCIP_CONS *cons)
Definition: cons.c:8348
SCIP_RETCODE SCIPprobDelCons(SCIP_PROB *prob, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_CONS *cons)
Definition: prob.c:1345
void SCIPconshdlrSetGetNVars(SCIP_CONSHDLR *conshdlr, SCIP_DECL_CONSGETNVARS((*consgetnvars)))
Definition: cons.c:4524
#define SCIP_MAXTREEDEPTH
Definition: def.h:300
void SCIPconshdlrSetParse(SCIP_CONSHDLR *conshdlr, SCIP_DECL_CONSPARSE((*consparse)))
Definition: cons.c:4502
SCIP_Real SCIPgetVarUbAtIndex(SCIP *scip, SCIP_VAR *var, SCIP_BDCHGIDX *bdchgidx, SCIP_Bool after)
Definition: scip_var.c:2132
SCIP_Real age
Definition: struct_cons.h:39
int SCIPconshdlrGetEagerFreq(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:5108
SCIP_RETCODE SCIPconshdlrExitpre(SCIP_CONSHDLR *conshdlr, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat)
Definition: cons.c:2631
static SCIP_RETCODE conshdlrAddEnfocons(SCIP_CONSHDLR *conshdlr, SCIP_SET *set, SCIP_CONS *cons)
Definition: cons.c:972
SCIP_Bool SCIPconsIsGlobal(SCIP_CONS *cons)
Definition: cons.c:8318
SCIP_Bool propwasdelayed
Definition: struct_cons.h:271
unsigned int updateactfocus
Definition: struct_cons.h:95
int nactiveconss
Definition: struct_stat.h:227
int SCIPconsGetActiveDepth(SCIP_CONS *cons)
Definition: cons.c:8139
void SCIPconsCapture(SCIP_CONS *cons)
Definition: cons.c:6195
unsigned int SCIP_PROPTIMING
Definition: type_timing.h:66
static SCIP_RETCODE conshdlrAddCheckcons(SCIP_CONSHDLR *conshdlr, SCIP_SET *set, SCIP_CONS *cons)
Definition: cons.c:1081
SCIP_Longint nenfopscalls
Definition: struct_cons.h:121
SCIP_Longint SCIPconshdlrGetNCheckCalls(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4828
int SCIPconshdlrGetNChgSides(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:5038
SCIP_RETCODE SCIPconssetchgUndo(SCIP_CONSSETCHG *conssetchg, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat)
Definition: cons.c:5633
SCIP_Longint domchgcount
Definition: struct_stat.h:105
SCIP_Bool SCIPconsIsEnforced(SCIP_CONS *cons)
Definition: cons.c:8278
SCIP_Longint lastenfolplpcount
Definition: struct_cons.h:203
#define SCIP_PRESOLTIMING_FINAL
Definition: type_timing.h:46
SCIP_Longint ncutsapplied
Definition: struct_cons.h:128
SCIP_RETCODE SCIPconssetchgAddAddedCons(SCIP_CONSSETCHG **conssetchg, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_CONS *cons, int depth, SCIP_Bool focusnode, SCIP_Bool active)
Definition: cons.c:5382
#define SCIP_DECL_CONSFREE(x)
Definition: type_cons.h:106
SCIP_CLOCK * enfolptime
Definition: struct_cons.h:195
SCIP_EXPORT SCIP_Real SCIPvarGetLbGlobal(SCIP_VAR *var)
Definition: var.c:17667
void SCIPconshdlrSetDisable(SCIP_CONSHDLR *conshdlr, SCIP_DECL_CONSDISABLE((*consdisable)))
Definition: cons.c:4469
SCIP_Bool SCIPconshdlrIsInitialized(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:5188
unsigned int updatedisable
Definition: struct_cons.h:88
static SCIP_RETCODE conshdlrEnsureConssMem(SCIP_CONSHDLR *conshdlr, SCIP_SET *set, int num)
Definition: cons.c:69
SCIP_CONS ** SCIPconshdlrGetConss(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4551
SCIP_Longint SCIPconshdlrGetNConssFound(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4898
#define SCIP_DECL_CONSINIT(x)
Definition: type_cons.h:116
int SCIPconshdlrGetCheckPriority(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:5078
SCIP_DECL_CONSLOCK(ConshdlrSubtour::scip_lock)
unsigned int original
Definition: struct_cons.h:71
static SCIP_RETCODE conshdlrDisableConsPropagation(SCIP_CONSHDLR *conshdlr, SCIP_CONS *cons)
Definition: cons.c:1370
int SCIPsnprintf(char *t, int len, const char *s,...)
Definition: misc.c:10590
void SCIPmessageFPrintInfo(SCIP_MESSAGEHDLR *messagehdlr, FILE *file, const char *formatstr,...)
Definition: message.c:609
unsigned int updateobsolete
Definition: struct_cons.h:93
SCIP_Longint nrespropcalls
Definition: struct_cons.h:125
SCIP_Longint nboundchgs
Definition: struct_stat.h:106
const char * SCIPconsGetName(SCIP_CONS *cons)
Definition: cons.c:8089
unsigned int local
Definition: struct_cons.h:66
SCIP_Bool SCIPconsIsDeleted(SCIP_CONS *cons)
Definition: cons.c:8218
SCIP_Longint SCIPconshdlrGetNPropCalls(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4818
#define SCIP_DECL_CONSENFORELAX(x)
Definition: type_cons.h:379
SCIP_RETCODE SCIPconsSetInitial(SCIP_CONS *cons, SCIP_SET *set, SCIP_STAT *stat, SCIP_Bool initial)
Definition: cons.c:6464
void SCIPconshdlrSetResprop(SCIP_CONSHDLR *conshdlr, SCIP_DECL_CONSRESPROP((*consresprop)))
Definition: cons.c:4425
#define SCIP_Real
Definition: def.h:163
internal methods for problem statistics
static void conshdlrUpdateAgeresetavg(SCIP_CONSHDLR *conshdlr, SCIP_Real age)
Definition: cons.c:338
SCIP_RETCODE SCIPconshdlrExitsol(SCIP_CONSHDLR *conshdlr, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_Bool restart)
Definition: cons.c:2711
SCIP_DECL_CONSPRINT(ConshdlrSubtour::scip_print)
SCIP_CLOCK * sbproptime
Definition: struct_cons.h:199
SCIP_CONSHDLR * SCIPconsGetHdlr(SCIP_CONS *cons)
Definition: cons.c:8109
SCIP_RETCODE SCIPconsPresol(SCIP_CONS *cons, SCIP_SET *set, int nrounds, SCIP_PRESOLTIMING timing, int nnewfixedvars, int nnewaggrvars, int nnewchgvartypes, int nnewchgbds, int nnewholes, int nnewdelconss, int nnewaddconss, int nnewupgdconss, int nnewchgcoefs, int nnewchgsides, int *nfixedvars, int *naggrvars, int *nchgvartypes, int *nchgbds, int *naddholes, int *ndelconss, int *naddconss, int *nupgdconss, int *nchgcoefs, int *nchgsides, SCIP_RESULT *result)
Definition: cons.c:7659
void SCIPconshdlrSetDelvars(SCIP_CONSHDLR *conshdlr, SCIP_DECL_CONSDELVARS((*consdelvars)))
Definition: cons.c:4480
SCIP_Longint SCIPconshdlrGetNCutoffs(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4848
#define BMSallocMemory(ptr)
Definition: memory.h:111
SCIP_RETCODE SCIPconsPrint(SCIP_CONS *cons, SCIP_SET *set, SCIP_MESSAGEHDLR *messagehdlr, FILE *file)
Definition: cons.c:6247
#define BMSreallocMemoryArray(ptr, num)
Definition: memory.h:119
internal methods for constraints and constraint handlers
SCIP_RETCODE SCIPconsCopy(SCIP_CONS **cons, SCIP_SET *set, const char *name, SCIP *sourcescip, SCIP_CONSHDLR *sourceconshdlr, SCIP_CONS *sourcecons, SCIP_HASHMAP *varmap, SCIP_HASHMAP *consmap, SCIP_Bool initial, SCIP_Bool separate, SCIP_Bool enforce, SCIP_Bool check, SCIP_Bool propagate, SCIP_Bool local, SCIP_Bool modifiable, SCIP_Bool dynamic, SCIP_Bool removable, SCIP_Bool stickingatnode, SCIP_Bool global, SCIP_Bool *valid)
Definition: cons.c:5957
SCIP_Longint storedpropdomchgcount
Definition: struct_cons.h:133
#define SCIP_DECL_CONSACTIVE(x)
Definition: type_cons.h:681
static SCIP_RETCODE conssetchgEnsureDisabledconssSize(SCIP_CONSSETCHG *conssetchg, BMS_BLKMEM *blkmem, SCIP_SET *set, int num)
Definition: cons.c:5357
SCIP_Longint SCIPconshdlrGetNDomredsFound(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4908
SCIP_Real SCIPconshdlrGetEnfoPSTime(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4718
void SCIPconshdlrSetGetVars(SCIP_CONSHDLR *conshdlr, SCIP_DECL_CONSGETVARS((*consgetvars)))
Definition: cons.c:4513
#define SCIP_Longint
Definition: def.h:148
SCIP_Longint lastenforelaxnode
Definition: struct_cons.h:139
SCIP_Bool SCIPconsIsStickingAtNode(SCIP_CONS *cons)
Definition: cons.c:8368
static SCIP_RETCODE conshdlrAddInitcons(SCIP_CONSHDLR *conshdlr, SCIP_SET *set, SCIP_STAT *stat, SCIP_CONS *cons)
Definition: cons.c:811
const char * SCIPconshdlrGetName(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4179
unsigned int markpropagate
Definition: struct_cons.h:81
SCIP_Real SCIPconshdlrGetCheckTime(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4758
SCIP_RETCODE SCIPconsFree(SCIP_CONS **cons, BMS_BLKMEM *blkmem, SCIP_SET *set)
Definition: cons.c:6140
void SCIPconshdlrSetTrans(SCIP_CONSHDLR *conshdlr, SCIP_DECL_CONSTRANS((*constrans)))
Definition: cons.c:4403
SCIP_Real ageresetavg
Definition: struct_cons.h:143
SCIP_RETCODE SCIPconssetchgMakeGlobal(SCIP_CONSSETCHG **conssetchg, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_PROB *prob, SCIP_REOPT *reopt)
Definition: cons.c:5719
int SCIPconshdlrGetNChgCoefs(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:5028
int SCIPconshdlrGetEnfoPriority(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:5068
SCIP_Bool SCIPconshdlrWasPropagationDelayed(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:5178
SCIP_RETCODE SCIPconsMarkPropagate(SCIP_CONS *cons, SCIP_SET *set)
Definition: cons.c:7005
SCIP_RETCODE SCIPconsEnforelax(SCIP_CONS *cons, SCIP_SET *set, SCIP_SOL *sol, SCIP_Bool solinfeasible, SCIP_RESULT *result)
Definition: cons.c:7423
SCIP_RETCODE SCIPconssetchgAddDisabledCons(SCIP_CONSSETCHG **conssetchg, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_CONS *cons)
Definition: cons.c:5428
SCIP_STAGE SCIPsetGetStage(SCIP_SET *set)
Definition: set.c:2917
SCIP_Bool SCIPconsIsOriginal(SCIP_CONS *cons)
Definition: cons.c:8388
SCIP_RETCODE SCIPconsEnable(SCIP_CONS *cons, SCIP_SET *set, SCIP_STAT *stat)
Definition: cons.c:6810
SCIP_CLOCK * proptime
Definition: struct_cons.h:198
unsigned int updatedeactivate
Definition: struct_cons.h:86
#define SCIP_DECL_CONSHDLRCOPY(x)
Definition: type_cons.h:98
static SCIP_RETCODE conshdlrDisableCons(SCIP_CONSHDLR *conshdlr, SCIP_SET *set, SCIP_STAT *stat, SCIP_CONS *cons)
Definition: cons.c:1461
struct SCIP_ConshdlrData SCIP_CONSHDLRDATA
Definition: type_cons.h:55
SCIP_DECL_CONSCOPY(ConshdlrSubtour::scip_copy)
int nchildren
Definition: struct_tree.h:213
SCIP_RETCODE SCIPconshdlrSeparateSol(SCIP_CONSHDLR *conshdlr, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_SEPASTORE *sepastore, SCIP_SOL *sol, int depth, SCIP_Bool execdelayed, SCIP_RESULT *result)
Definition: cons.c:3012
SCIP_RETCODE SCIPprobAddCons(SCIP_PROB *prob, SCIP_SET *set, SCIP_STAT *stat, SCIP_CONS *cons)
Definition: prob.c:1277
void SCIPconshdlrSetExitpre(SCIP_CONSHDLR *conshdlr, SCIP_DECL_CONSEXITPRE((*consexitpre)))
Definition: cons.c:4352
SCIP_RETCODE SCIPconsEnfolp(SCIP_CONS *cons, SCIP_SET *set, SCIP_Bool solinfeasible, SCIP_RESULT *result)
Definition: cons.c:7381
#define BMSallocBlockMemory(mem, ptr)
Definition: memory.h:443
int addarraypos
Definition: struct_cons.h:47
SCIP_RETCODE SCIPconsDeactivate(SCIP_CONS *cons, SCIP_SET *set, SCIP_STAT *stat)
Definition: cons.c:6775
void SCIPlinConsStatsIncTypeCount(SCIP_LINCONSSTATS *linconsstats, SCIP_LINCONSTYPE linconstype, int increment)
Definition: cons.c:7983
SCIP_RETCODE SCIPconsDisablePropagation(SCIP_CONS *cons, SCIP_SET *set)
Definition: cons.c:6965
void SCIPconsSetLocal(SCIP_CONS *cons, SCIP_Bool local)
Definition: cons.c:6651
#define BMSclearMemoryArray(ptr, num)
Definition: memory.h:122
SCIP_Bool SCIPconsIsMarkedPropagate(SCIP_CONS *cons)
Definition: cons.c:8298
common defines and data types used in all packages of SCIP
SCIP_Longint nnodes
Definition: struct_stat.h:73
void SCIPinfoMessage(SCIP *scip, FILE *file, const char *formatstr,...)
Definition: scip_message.c:199
struct BMS_BlkMem BMS_BLKMEM
Definition: memory.h:429
int checkconsspos
Definition: struct_cons.h:52
SCIP_RETCODE SCIPconshdlrFree(SCIP_CONSHDLR **conshdlr, SCIP_SET *set)
Definition: cons.c:2344
int SCIPconshdlrGetNChgVarTypes(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4968
SCIP_RETCODE SCIPconshdlrCheck(SCIP_CONSHDLR *conshdlr, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_SOL *sol, SCIP_Bool checkintegrality, SCIP_Bool checklprows, SCIP_Bool printreason, SCIP_Bool completely, SCIP_RESULT *result)
Definition: cons.c:3742
SCIP_RETCODE SCIPconshdlrsStorePropagationStatus(SCIP_SET *set, SCIP_CONSHDLR **conshdlrs, int nconshdlrs)
Definition: cons.c:7826
SCIP_Bool initialized
Definition: struct_cons.h:272
SCIP_Bool SCIPconshdlrWasLPSeparationDelayed(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:5158
SCIP_PRESOLTIMING SCIPconshdlrGetPresolTiming(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:5230
int SCIPconshdlrGetNPresolCalls(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:5048
unsigned int enforce
Definition: struct_cons.h:61
#define SCIP_ALLOC(x)
Definition: def.h:375
unsigned int propagate
Definition: struct_cons.h:63
int nmarkedpropconss
Definition: struct_cons.h:234
SCIP_RETCODE SCIPsetAddBoolParam(SCIP_SET *set, SCIP_MESSAGEHDLR *messagehdlr, BMS_BLKMEM *blkmem, const char *name, const char *desc, SCIP_Bool *valueptr, SCIP_Bool isadvanced, SCIP_Bool defaultvalue, SCIP_DECL_PARAMCHGD((*paramchgd)), SCIP_PARAMDATA *paramdata)
Definition: set.c:2927
SCIP_Longint nprobholechgs
Definition: struct_stat.h:109
SCIP_RETCODE SCIPconshdlrLockVars(SCIP_CONSHDLR *conshdlr, SCIP_SET *set)
Definition: cons.c:4149
static SCIP_RETCODE conshdlrMarkConsObsolete(SCIP_CONSHDLR *conshdlr, SCIP_CONS *cons)
Definition: cons.c:383
unsigned int nupgradelocks
Definition: struct_cons.h:98
static SCIP_RETCODE conshdlrAddPropcons(SCIP_CONSHDLR *conshdlr, SCIP_SET *set, SCIP_CONS *cons)
Definition: cons.c:1164
SCIP_Bool SCIPconsIsPropagated(SCIP_CONS *cons)
Definition: cons.c:8308
void SCIPconshdlrSetInitlp(SCIP_CONSHDLR *conshdlr, SCIP_DECL_CONSINITLP((*consinitlp)))
Definition: cons.c:4414
SCIP_Real SCIPconshdlrGetRespropTime(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4768
#define BMSreallocBlockMemoryArray(mem, ptr, oldnum, newnum)
Definition: memory.h:449
SCIP_RETCODE SCIPconsInitlp(SCIP_CONS *cons, SCIP_SET *set, SCIP_Bool *infeasible)
Definition: cons.c:7467
SCIP_RETCODE SCIPconsCreate(SCIP_CONS **cons, BMS_BLKMEM *blkmem, SCIP_SET *set, const char *name, SCIP_CONSHDLR *conshdlr, SCIP_CONSDATA *consdata, SCIP_Bool initial, SCIP_Bool separate, SCIP_Bool enforce, SCIP_Bool check, SCIP_Bool propagate, SCIP_Bool local, SCIP_Bool modifiable, SCIP_Bool dynamic, SCIP_Bool removable, SCIP_Bool stickingatnode, SCIP_Bool original, SCIP_Bool deleteconsdata)
Definition: cons.c:5815
SCIP_CONS ** sepaconss
Definition: struct_cons.h:184
void SCIPconsAddUpgradeLocks(SCIP_CONS *cons, int nlocks)
Definition: cons.c:8528
SCIP_RETCODE SCIPconsCheck(SCIP_CONS *cons, SCIP_SET *set, SCIP_SOL *sol, SCIP_Bool checkintegrality, SCIP_Bool checklprows, SCIP_Bool printreason, SCIP_RESULT *result)
Definition: cons.c:7299
SCIP_RETCODE SCIPconsSepalp(SCIP_CONS *cons, SCIP_SET *set, SCIP_RESULT *result)
Definition: cons.c:7493
static SCIP_RETCODE conssetchgEnsureAddedconssSize(SCIP_CONSSETCHG *conssetchg, BMS_BLKMEM *blkmem, SCIP_SET *set, int num)
Definition: cons.c:5333
SCIP_CONSHDLRDATA * conshdlrdata
Definition: struct_cons.h:178
SCIP_Longint SCIPconshdlrGetNCutsApplied(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4868
SCIP callable library.
void SCIPconshdlrSetGetDiveBdChgs(SCIP_CONSHDLR *conshdlr, SCIP_DECL_CONSGETDIVEBDCHGS((*consgetdivebdchgs)))
Definition: cons.c:4535
SCIP_CLOCK * checktime
Definition: struct_cons.h:200
SCIP_Bool SCIPconshdlrIsClonable(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:5198
SCIP_Bool SCIPconsIsModifiable(SCIP_CONS *cons)
Definition: cons.c:8338
SCIP_Longint SCIPconshdlrGetNCutsFound(SCIP_CONSHDLR *conshdlr)
Definition: cons.c:4858
SCIP_Longint lastenfolpdomchgcount
Definition: struct_cons.h:134
SCIP_RETCODE SCIPconsSetEnforced(SCIP_CONS *cons, SCIP_SET *set, SCIP_Bool enforce)
Definition: cons.c:6533
SCIP_RETCODE SCIPconsResolvePropagation(SCIP_CONS *cons, SCIP_SET *set, SCIP_VAR *infervar, int inferinfo, SCIP_BOUNDTYPE inferboundtype, SCIP_BDCHGIDX *bdchgidx, SCIP_Real relaxedbd, SCIP_RESULT *result)
Definition: cons.c:7193