Scippy

SCIP

Solving Constraint Integer Programs

scip_copy.h
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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) 2002-2021 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 scip_copy.h
17  * @ingroup PUBLICCOREAPI
18  * @brief public methods for problem copies
19  * @author Tobias Achterberg
20  * @author Timo Berthold
21  * @author Thorsten Koch
22  * @author Alexander Martin
23  * @author Marc Pfetsch
24  * @author Kati Wolter
25  * @author Gregor Hendel
26  * @author Leona Gottwald
27  */
28 
29 /*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
30 
31 #ifndef __SCIP_SCIP_COPY_H__
32 #define __SCIP_SCIP_COPY_H__
33 
34 
35 #include "scip/def.h"
36 #include "scip/type_cons.h"
37 #include "scip/type_misc.h"
38 #include "scip/type_retcode.h"
39 #include "scip/type_scip.h"
40 #include "scip/type_var.h"
41 
42 #ifdef __cplusplus
43 extern "C" {
44 #endif
45 
46 /**@addtogroup CopyMethods
47  *
48  * @{
49  */
50 
51 /** copies plugins from sourcescip to targetscip; in case that a constraint handler which does not need constraints
52  * cannot be copied, valid will return FALSE. All plugins can declare that, if their copy process failed, the
53  * copied SCIP instance might not represent the same problem semantics as the original.
54  * Note that in this case dual reductions might be invalid.
55  *
56  * @note In a multi thread case, you need to lock the copying procedure from outside with a mutex.
57  * Also, 'passmessagehdlr' should be set to FALSE.
58  *
59  * @note Do not change the source SCIP environment during the copying process.
60  *
61  * @note This method does not copy Benders' plugins. To this end, the method SCIPcopyBenders() must be called
62  * separately.
63  *
64  * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
65  * SCIP_Retcode "SCIP_RETCODE" for a complete list of error codes.
66  *
67  * @pre This method can be called if sourcescip is in one of the following stages:
68  * - \ref SCIP_STAGE_PROBLEM
69  * - \ref SCIP_STAGE_TRANSFORMED
70  * - \ref SCIP_STAGE_INITPRESOLVE
71  * - \ref SCIP_STAGE_PRESOLVING
72  * - \ref SCIP_STAGE_EXITPRESOLVE
73  * - \ref SCIP_STAGE_PRESOLVED
74  * - \ref SCIP_STAGE_INITSOLVE
75  * - \ref SCIP_STAGE_SOLVING
76  * - \ref SCIP_STAGE_SOLVED
77  *
78  * @pre This method can be called if targetscip is in one of the following stages:
79  * - \ref SCIP_STAGE_INIT
80  * - \ref SCIP_STAGE_FREE
81  *
82  * @post After calling this method targetscip reaches one of the following stages depending on if and when the solution
83  * process was interrupted:
84  * - \ref SCIP_STAGE_PROBLEM
85  *
86  * @note sourcescip stage does not get changed
87  *
88  * See \ref SCIP_Stage "SCIP_STAGE" for a complete list of all possible solving stages.
89  */
90 SCIP_EXPORT
91 SCIP_RETCODE SCIPcopyPlugins(
92  SCIP* sourcescip, /**< source SCIP data structure */
93  SCIP* targetscip, /**< target SCIP data structure */
94  SCIP_Bool copyreaders, /**< should the file readers be copied */
95  SCIP_Bool copypricers, /**< should the variable pricers be copied */
96  SCIP_Bool copyconshdlrs, /**< should the constraint handlers be copied */
97  SCIP_Bool copyconflicthdlrs, /**< should the conflict handlers be copied */
98  SCIP_Bool copypresolvers, /**< should the presolvers be copied */
99  SCIP_Bool copyrelaxators, /**< should the relaxation handler be copied */
100  SCIP_Bool copyseparators, /**< should the separators be copied */
101  SCIP_Bool copypropagators, /**< should the propagators be copied */
102  SCIP_Bool copyheuristics, /**< should the heuristics be copied */
103  SCIP_Bool copyeventhdlrs, /**< should the event handlers be copied */
104  SCIP_Bool copynodeselectors, /**< should the node selectors be copied */
105  SCIP_Bool copybranchrules, /**< should the branchrules be copied */
106  SCIP_Bool copydisplays, /**< should the display columns be copied */
107  SCIP_Bool copydialogs, /**< should the dialogs be copied */
108  SCIP_Bool copytables, /**< should the statistics tables be copied */
109  SCIP_Bool copynlpis, /**< should the NLPIs be copied */
110  SCIP_Bool passmessagehdlr, /**< should the message handler be passed */
111  SCIP_Bool* valid /**< pointer to store whether plugins, in particular all constraint
112  * handlers which do not need constraints were validly copied */
113  );
114 
115 /** copies all Benders' decomposition plugins
116  *
117  * @note In a multi thread case, you need to lock the copying procedure from outside with a mutex.
118  * @note the 'threadsafe' parameter must be set to TRUE if you are absolutely certain that the source and target
119  * SCIP instances will be solved in parallel. The usual case is to set this to FALSE, since thread safety
120  * typically incurs a performance cost.
121  *
122  * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
123  * SCIP_Retcode "SCIP_RETCODE" for a complete list of error codes.
124  *
125  * @pre This method can be called if sourcescip is in one of the following stages:
126  * - \ref SCIP_STAGE_PROBLEM
127  * - \ref SCIP_STAGE_TRANSFORMED
128  * - \ref SCIP_STAGE_INITPRESOLVE
129  * - \ref SCIP_STAGE_PRESOLVING
130  * - \ref SCIP_STAGE_EXITPRESOLVE
131  * - \ref SCIP_STAGE_PRESOLVED
132  * - \ref SCIP_STAGE_INITSOLVE
133  * - \ref SCIP_STAGE_SOLVING
134  * - \ref SCIP_STAGE_SOLVED
135  *
136  * @pre This method can be called if targetscip is in one of the following stages:
137  * - \ref SCIP_STAGE_INIT
138  * - \ref SCIP_STAGE_FREE
139  *
140  * @post After calling this method targetscip reaches one of the following stages depending on if and when the solution
141  * process was interrupted:
142  * - \ref SCIP_STAGE_PROBLEM
143  *
144  * @note sourcescip stage does not get changed
145  *
146  * See \ref SCIP_Stage "SCIP_STAGE" for a complete list of all possible solving stages.
147  */
148 SCIP_EXPORT
149 SCIP_RETCODE SCIPcopyBenders(
150  SCIP* sourcescip, /**< source SCIP data structure */
151  SCIP* targetscip, /**< target SCIP data structure */
152  SCIP_HASHMAP* varmap, /**< a hashmap to store the mapping of source variables corresponding
153  * target variables; if NULL the transfer of cuts is not possible */
154  SCIP_Bool threadsafe, /**< FALSE, if data can be safely shared between the source and target
155  SCIP, otherwise TRUE. This is usually set to FALSE */
156  SCIP_Bool* valid /**< pointer to store whether all plugins were validly copied */
157  );
158 
159 /** create a problem by copying the problem data of the source SCIP
160  *
161  * @note In a multi thread case, you need to lock the copying procedure from outside with a mutex.
162  * @note Do not change the source SCIP environment during the copying process
163  * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
164  * SCIP_Retcode "SCIP_RETCODE" for a complete list of error codes.
165  *
166  * @pre This method can be called if sourcescip is in one of the following stages:
167  * - \ref SCIP_STAGE_PROBLEM
168  * - \ref SCIP_STAGE_TRANSFORMED
169  * - \ref SCIP_STAGE_INITPRESOLVE
170  * - \ref SCIP_STAGE_PRESOLVING
171  * - \ref SCIP_STAGE_EXITPRESOLVE
172  * - \ref SCIP_STAGE_PRESOLVED
173  * - \ref SCIP_STAGE_INITSOLVE
174  * - \ref SCIP_STAGE_SOLVING
175  * - \ref SCIP_STAGE_SOLVED
176  *
177  * @pre This method can be called if targetscip is in one of the following stages:
178  * - \ref SCIP_STAGE_INIT
179  * - \ref SCIP_STAGE_PROBLEM
180  * - \ref SCIP_STAGE_TRANSFORMED
181  * - \ref SCIP_STAGE_INITPRESOLVE
182  * - \ref SCIP_STAGE_PRESOLVING
183  * - \ref SCIP_STAGE_EXITPRESOLVE
184  * - \ref SCIP_STAGE_PRESOLVED
185  * - \ref SCIP_STAGE_INITSOLVE
186  * - \ref SCIP_STAGE_SOLVING
187  * - \ref SCIP_STAGE_SOLVED
188  * - \ref SCIP_STAGE_FREE
189  *
190  * @post After calling this method targetscip reaches one of the following stages depending on if and when the solution
191  * process was interrupted:
192  * - \ref SCIP_STAGE_PROBLEM
193  *
194  * @note sourcescip stage does not get changed
195  *
196  * See \ref SCIP_Stage "SCIP_STAGE" for a complete list of all possible solving stages.
197  */
198 SCIP_EXPORT
199 SCIP_RETCODE SCIPcopyProb(
200  SCIP* sourcescip, /**< source SCIP data structure */
201  SCIP* targetscip, /**< target SCIP data structure */
202  SCIP_HASHMAP* varmap, /**< a hashmap to store the mapping of source variables corresponding
203  * target variables, or NULL */
204  SCIP_HASHMAP* consmap, /**< a hashmap to store the mapping of source constraints to the corresponding
205  * target constraints, or NULL */
206  SCIP_Bool global, /**< create a global or a local copy? */
207  const char* name /**< problem name */
208  );
209 
210 /** create a problem by copying the original problem data of the source SCIP
211  *
212  * @note In a multi thread case, you need to lock the copying procedure from outside with a mutex.
213  * @note Do not change the source SCIP environment during the copying process
214  * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
215  * SCIP_Retcode "SCIP_RETCODE" for a complete list of error codes.
216  *
217  * @pre This method can be called if sourcescip is in one of the following stages:
218  * - \ref SCIP_STAGE_PROBLEM
219  * - \ref SCIP_STAGE_TRANSFORMED
220  * - \ref SCIP_STAGE_INITPRESOLVE
221  * - \ref SCIP_STAGE_PRESOLVING
222  * - \ref SCIP_STAGE_EXITPRESOLVE
223  * - \ref SCIP_STAGE_PRESOLVED
224  * - \ref SCIP_STAGE_INITSOLVE
225  * - \ref SCIP_STAGE_SOLVING
226  * - \ref SCIP_STAGE_SOLVED
227  *
228  * @pre This method can be called if targetscip is in one of the following stages:
229  * - \ref SCIP_STAGE_INIT
230  * - \ref SCIP_STAGE_FREE
231  *
232  * @post After calling this method targetscip reaches one of the following stages depending on if and when the solution
233  * process was interrupted:
234  * - \ref SCIP_STAGE_PROBLEM
235  *
236  * @note sourcescip stage does not get changed
237  *
238  * See \ref SCIP_Stage "SCIP_STAGE" for a complete list of all possible solving stages.
239  */
240 SCIP_EXPORT
241 SCIP_RETCODE SCIPcopyOrigProb(
242  SCIP* sourcescip, /**< source SCIP data structure */
243  SCIP* targetscip, /**< target SCIP data structure */
244  SCIP_HASHMAP* varmap, /**< a hashmap to store the mapping of source variables corresponding
245  * target variables, or NULL */
246  SCIP_HASHMAP* consmap, /**< a hashmap to store the mapping of source constraints to the corresponding
247  * target constraints, or NULL */
248  const char* name /**< problem name of target */
249  );
250 
251 /** enables constraint compression.
252  *
253  * If constraint compression is enabled, fixed variables will be treated as constants
254  * by all constraints that are copied after calling this method.
255  *
256  * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
257  * SCIP_Retcode "SCIP_RETCODE" for a complete list of error codes.
258  *
259  * @pre This method can be called if scip is in one of the following stages:
260  * - \ref SCIP_STAGE_PROBLEM
261  *
262  * See \ref SCIP_Stage "SCIP_STAGE" for a complete list of all possible solving stages.
263  */
264 SCIP_EXPORT
265 SCIP_RETCODE SCIPenableConsCompression(
266  SCIP* scip /**< source SCIP data structure */
267  );
268 
269 /** is constraint compression enabled?
270  *
271  * If constraint compression is enabled, fixed variables can be treated as constants
272  * by all constraints that are copied after calling this method.
273  *
274  * @return TRUE if problem constraint compression is enabled, otherwise FALSE
275  *
276  * @pre This method can be called if scip is in one of the following stages:
277  * - \ref SCIP_STAGE_PROBLEM
278  * - \ref SCIP_STAGE_TRANSFORMING
279  * - \ref SCIP_STAGE_TRANSFORMED
280  * - \ref SCIP_STAGE_INITPRESOLVE
281  * - \ref SCIP_STAGE_PRESOLVING
282  * - \ref SCIP_STAGE_EXITPRESOLVE
283  * - \ref SCIP_STAGE_PRESOLVED
284  * - \ref SCIP_STAGE_INITSOLVE
285  * - \ref SCIP_STAGE_SOLVING
286  * - \ref SCIP_STAGE_SOLVED
287  * - \ref SCIP_STAGE_EXITSOLVE
288  * - \ref SCIP_STAGE_FREETRANS
289  *
290  * See \ref SCIP_Stage "SCIP_STAGE" for a complete list of all possible solving stages.
291  */
292 SCIP_EXPORT
293 SCIP_Bool SCIPisConsCompressionEnabled(
294  SCIP* scip /**< source SCIP data structure */
295  );
296 
297 /** returns copy of the source variable; if there already is a copy of the source variable in the variable hash map,
298  * it is just returned as target variable; otherwise, if the variables it not marked as relaxation-only, a new variable
299  * will be created and added to the target SCIP; this created variable is added to the variable hash map and returned as target variable;
300  * relaxation-only variables are not copied and FALSE is returned in *success
301  *
302  * @note In a multi thread case, you need to lock the copying procedure from outside with a mutex.
303  * @note Do not change the source SCIP environment during the copying process
304  * @note if a new variable was created, this variable will be added to the target-SCIP, but it is not captured
305  *
306  * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
307  * SCIP_Retcode "SCIP_RETCODE" for a complete list of error codes.
308  *
309  * @pre This method can be called if sourcescip is in one of the following stages:
310  * - \ref SCIP_STAGE_PROBLEM
311  * - \ref SCIP_STAGE_TRANSFORMED
312  * - \ref SCIP_STAGE_INITPRESOLVE
313  * - \ref SCIP_STAGE_PRESOLVING
314  * - \ref SCIP_STAGE_EXITPRESOLVE
315  * - \ref SCIP_STAGE_PRESOLVED
316  * - \ref SCIP_STAGE_INITSOLVE
317  * - \ref SCIP_STAGE_SOLVING
318  * - \ref SCIP_STAGE_SOLVED
319  *
320  * @pre This method can be called if targetscip is in one of the following stages:
321  * - \ref SCIP_STAGE_PROBLEM
322  * - \ref SCIP_STAGE_TRANSFORMED
323  * - \ref SCIP_STAGE_INITPRESOLVE
324  * - \ref SCIP_STAGE_PRESOLVING
325  * - \ref SCIP_STAGE_EXITPRESOLVE
326  * - \ref SCIP_STAGE_SOLVING
327  *
328  * @note targetscip stage does not get changed
329  *
330  * @note sourcescip stage does not get changed
331  *
332  * See \ref SCIP_Stage "SCIP_STAGE" for a complete list of all possible solving stages.
333  */
334 SCIP_EXPORT
335 SCIP_RETCODE SCIPgetVarCopy(
336  SCIP* sourcescip, /**< source SCIP data structure */
337  SCIP* targetscip, /**< target SCIP data structure */
338  SCIP_VAR* sourcevar, /**< source variable */
339  SCIP_VAR** targetvar, /**< pointer to store the target variable */
340  SCIP_HASHMAP* varmap, /**< a hashmap to store the mapping of source variables to the corresponding
341  * target variables, or NULL */
342  SCIP_HASHMAP* consmap, /**< a hashmap to store the mapping of source constraints to the corresponding
343  * target constraints, or NULL */
344  SCIP_Bool global, /**< should global or local bounds be used? */
345  SCIP_Bool* success /**< pointer to store whether the copying was successful or not */
346  );
347 
348 /** Copies all active (thus unfixed) variables from source-SCIP, except those that are marked as relaxation only,
349  * and adds these variable to the target-SCIP.
350  *
351  * The mapping between these variables are stored in the variable hashmap.
352  *
353  * The target-SCIP has to be in problem creation stage.
354  *
355  * @note the variables are added to the target-SCIP but not captured
356  *
357  * @note In a multi thread case, you need to lock the copying procedure from outside with a mutex.
358  * @note Do not change the source SCIP environment during the copying process
359  *
360  * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
361  * SCIP_Retcode "SCIP_RETCODE" for a complete list of error codes.
362  *
363  * @pre This method can be called if sourcescip is in one of the following stages:
364  * - \ref SCIP_STAGE_PROBLEM
365  * - \ref SCIP_STAGE_TRANSFORMED
366  * - \ref SCIP_STAGE_INITPRESOLVE
367  * - \ref SCIP_STAGE_PRESOLVING
368  * - \ref SCIP_STAGE_EXITPRESOLVE
369  * - \ref SCIP_STAGE_PRESOLVED
370  * - \ref SCIP_STAGE_INITSOLVE
371  * - \ref SCIP_STAGE_SOLVING
372  * - \ref SCIP_STAGE_SOLVED
373  *
374  * @pre This method can be called if targetscip is in one of the following stages:
375  * - \ref SCIP_STAGE_PROBLEM
376  *
377  * @note sourcescip stage does not get changed
378  *
379  * @note targetscip stage does not get changed
380  *
381  * See \ref SCIP_Stage "SCIP_STAGE" for a complete list of all possible solving stages.
382  */
383 SCIP_EXPORT
384 SCIP_RETCODE SCIPcopyVars(
385  SCIP* sourcescip, /**< source SCIP data structure */
386  SCIP* targetscip, /**< target SCIP data structure */
387  SCIP_HASHMAP* varmap, /**< a hashmap to store the mapping of source variables to the corresponding
388  * target variables, or NULL */
389  SCIP_HASHMAP* consmap, /**< a hashmap to store the mapping of source constraints to the corresponding
390  * target constraints, or NULL */
391  SCIP_VAR** fixedvars, /**< source variables whose copies should be fixed in the target SCIP environment, or NULL */
392  SCIP_Real* fixedvals, /**< array of fixing values for target SCIP variables, or NULL */
393  int nfixedvars, /**< number of source variables whose copies should be fixed in the target SCIP environment, or NULL */
394  SCIP_Bool global /**< should global or local bounds be used? */
395  );
396 
397 /** copies all original variables from source-SCIP and adds these variable to the target-SCIP; the mapping between these
398  * variables are stored in the variable hashmap, target-SCIP has to be in problem creation stage, fixed and aggregated
399  * variables do not get copied
400  *
401  * @note the variables are added to the target-SCIP but not captured
402  *
403  * @note In a multi thread case, you need to lock the copying procedure from outside with a mutex.
404  * @note Do not change the source SCIP environment during the copying process
405  *
406  * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
407  * SCIP_Retcode "SCIP_RETCODE" for a complete list of error codes.
408  *
409  * @pre This method can be called if sourcescip is in one of the following stages:
410  * - \ref SCIP_STAGE_PROBLEM
411  * - \ref SCIP_STAGE_TRANSFORMED
412  * - \ref SCIP_STAGE_INITPRESOLVE
413  * - \ref SCIP_STAGE_PRESOLVING
414  * - \ref SCIP_STAGE_EXITPRESOLVE
415  * - \ref SCIP_STAGE_PRESOLVED
416  * - \ref SCIP_STAGE_INITSOLVE
417  * - \ref SCIP_STAGE_SOLVING
418  * - \ref SCIP_STAGE_SOLVED
419  *
420  * @pre This method can be called if targetscip is in one of the following stages:
421  * - \ref SCIP_STAGE_PROBLEM
422  *
423  * @note sourcescip stage does not get changed
424  *
425  * @note targetscip stage does not get changed
426  *
427  * See \ref SCIP_Stage "SCIP_STAGE" for a complete list of all possible solving stages.
428  */
429 SCIP_EXPORT
430 SCIP_RETCODE SCIPcopyOrigVars(
431  SCIP* sourcescip, /**< source SCIP data structure */
432  SCIP* targetscip, /**< target SCIP data structure */
433  SCIP_HASHMAP* varmap, /**< a hashmap to store the mapping of source variables to the corresponding
434  * target variables, or NULL */
435  SCIP_HASHMAP* consmap, /**< a hashmap to store the mapping of source constraints to the corresponding
436  * target constraints, or NULL */
437  SCIP_VAR** fixedvars, /**< source variables whose copies should be fixed in the target SCIP environment, or NULL */
438  SCIP_Real* fixedvals, /**< array of fixing values for target SCIP variables, or NULL */
439  int nfixedvars /**< number of source variables whose copies should be fixed in the target SCIP environment, or NULL */
440  );
441 
442 /** merges the histories of variables from a source SCIP into a target SCIP. The two data structures should point to
443  * different SCIP instances.
444  *
445  * @note the notion of source and target is inverted here; \p sourcescip usually denotes a copied SCIP instance, whereas
446  * \p targetscip denotes the original instance
447  */
448 
449 SCIP_EXPORT
450 SCIP_RETCODE SCIPmergeVariableStatistics(
451  SCIP* sourcescip, /**< source SCIP data structure */
452  SCIP* targetscip, /**< target SCIP data structure */
453  SCIP_VAR** sourcevars, /**< source variables for history merge, NULL entries are ignored */
454  SCIP_VAR** targetvars, /**< target variables for history merge, NULL entries are ignored */
455  int nvars /**< number of variables in both variable arrays */
456  );
457 
458 /** translates a solution from a subscip to the main scip
459  *
460  * Variables that are relaxation-only in the master SCIP are set to 0 or the bound closest to 0. Such variables
461  * are represented as NULL entry in the \p subvars array.
462  *
463  * @note This method allocates a new solution of the main \p scip that needs to be freed by the user.
464  */
465 SCIP_EXPORT
466 SCIP_RETCODE SCIPtranslateSubSol(
467  SCIP* scip, /**< SCIP data structure of the original problem */
468  SCIP* subscip, /**< SCIP data structure of the subproblem */
469  SCIP_SOL* subsol, /**< solution of the subproblem */
470  SCIP_HEUR* heur, /**< heuristic that found the solution */
471  SCIP_VAR** subvars, /**< the variables from the subproblem in the same order as the main \p scip */
472  SCIP_SOL** newsol /**< buffer to store pointer to created solution in main SCIP */
473  );
474 
475 /** checks the solutions from the subscip and adds the first one that is found feasible to the master SCIP
476  *
477  * Variables that are relaxation-only in the master SCIP are set to 0 or the bound closest to 0. Such variables
478  * are represented as NULL entry in the \p subvars array.
479  */
480 SCIP_EXPORT
481 SCIP_RETCODE SCIPtranslateSubSols(
482  SCIP* scip, /**< the SCIP data structure */
483  SCIP* subscip, /**< SCIP data structure of the subproblem */
484  SCIP_HEUR* heur, /**< heuristic that found the solution */
485  SCIP_VAR** subvars, /**< the variables from the subproblem in the same order as the main \p scip */
486  SCIP_Bool* success, /**< pointer to store, whether new solution was found */
487  int* solindex /**< pointer to store solution index of stored solution, or NULL if not of interest */
488  );
489 
490 /** returns copy of the source constraint; if there already is a copy of the source constraint in the constraint hash
491  * map, it is just returned as target constraint; elsewise a new constraint will be created; this created constraint is
492  * added to the constraint hash map and returned as target constraint; the variable map is used to map the variables of
493  * the source SCIP to the variables of the target SCIP
494  *
495  * @warning If a constraint is marked to be checked for feasibility but not to be enforced, a LP or pseudo solution may
496  * be declared feasible even if it violates this particular constraint. This constellation should only be
497  * used, if no LP or pseudo solution can violate the constraint -- e.g. if a local constraint is redundant due
498  * to the variable's local bounds.
499  *
500  * @note The constraint is not added to the target SCIP. You can check whether a constraint is added by calling
501  * SCIPconsIsAdded(). (If you mix SCIPgetConsCopy() with SCIPcopyConss() you should pay attention to what you add
502  * explicitly and what is already added.)
503  *
504  * @note The constraint is always captured, either during the creation of the copy or after finding the copy of the
505  * constraint in the constraint hash map
506  *
507  * @note In a multi thread case, you need to lock the copying procedure from outside with a mutex.
508  * @note Do not change the source SCIP environment during the copying process
509  *
510  * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
511  * SCIP_Retcode "SCIP_RETCODE" for a complete list of error codes.
512  *
513  * @pre This method can be called if sourcescip is in one of the following stages:
514  * - \ref SCIP_STAGE_PROBLEM
515  * - \ref SCIP_STAGE_TRANSFORMED
516  * - \ref SCIP_STAGE_INITPRESOLVE
517  * - \ref SCIP_STAGE_PRESOLVING
518  * - \ref SCIP_STAGE_EXITPRESOLVE
519  * - \ref SCIP_STAGE_PRESOLVED
520  * - \ref SCIP_STAGE_INITSOLVE
521  * - \ref SCIP_STAGE_SOLVING
522  * - \ref SCIP_STAGE_SOLVED
523  *
524  * @pre This method can be called if targetscip is in one of the following stages:
525  * - \ref SCIP_STAGE_PROBLEM
526  * - \ref SCIP_STAGE_TRANSFORMING
527  * - \ref SCIP_STAGE_INITPRESOLVE
528  * - \ref SCIP_STAGE_PRESOLVING
529  * - \ref SCIP_STAGE_EXITPRESOLVE
530  * - \ref SCIP_STAGE_PRESOLVED
531  * - \ref SCIP_STAGE_SOLVING
532  * - \ref SCIP_STAGE_EXITSOLVE
533  *
534  * @note sourcescip stage does not get changed
535  *
536  * @note targetscip stage does not get changed
537  *
538  * See \ref SCIP_Stage "SCIP_STAGE" for a complete list of all possible solving stages.
539  */
540 SCIP_EXPORT
541 SCIP_RETCODE SCIPgetConsCopy(
542  SCIP* sourcescip, /**< source SCIP data structure */
543  SCIP* targetscip, /**< target SCIP data structure */
544  SCIP_CONS* sourcecons, /**< source constraint of the source SCIP */
545  SCIP_CONS** targetcons, /**< pointer to store the created target constraint */
546  SCIP_CONSHDLR* sourceconshdlr, /**< source constraint handler for this constraint */
547  SCIP_HASHMAP* varmap, /**< a SCIP_HASHMAP mapping variables of the source SCIP to the corresponding
548  * variables of the target SCIP, or NULL */
549  SCIP_HASHMAP* consmap, /**< a hashmap to store the mapping of source constraints to the corresponding
550  * target constraints, or NULL */
551  const char* name, /**< name of constraint, or NULL if the name of the source constraint should be used */
552  SCIP_Bool initial, /**< should the LP relaxation of constraint be in the initial LP? */
553  SCIP_Bool separate, /**< should the constraint be separated during LP processing? */
554  SCIP_Bool enforce, /**< should the constraint be enforced during node processing? */
555  SCIP_Bool check, /**< should the constraint be checked for feasibility? */
556  SCIP_Bool propagate, /**< should the constraint be propagated during node processing? */
557  SCIP_Bool local, /**< is constraint only valid locally? */
558  SCIP_Bool modifiable, /**< is constraint modifiable (subject to column generation)? */
559  SCIP_Bool dynamic, /**< is constraint subject to aging? */
560  SCIP_Bool removable, /**< should the relaxation be removed from the LP due to aging or cleanup? */
561  SCIP_Bool stickingatnode, /**< should the constraint always be kept at the node where it was added, even
562  * if it may be moved to a more global node? */
563  SCIP_Bool global, /**< create a global or a local copy? */
564  SCIP_Bool* valid /**< pointer to store whether the copying was valid or not */
565  );
566 
567 /** copies constraints from the source-SCIP and adds these to the target-SCIP; for mapping the
568  * variables between the source and the target SCIP a hash map can be given; if the variable hash
569  * map is NULL or necessary variable mapping is missing, the required variables are created in the
570  * target-SCIP and added to the hash map, if not NULL; all variables which are created are added to
571  * the target-SCIP but not (user) captured; if the constraint hash map is not NULL the mapping
572  * between the constraints of the source and target-SCIP is stored
573  *
574  * *valid is set to TRUE iff all constraints that are marked as checked or enforced were copied successfully.
575  * If other constraints could not be copied, *valid can still be set to TRUE.
576  *
577  * @note the constraints are added to the target-SCIP but are not (user) captured in the target SCIP. (If you mix
578  * SCIPgetConsCopy() with SCIPcopyConss() you should pay attention to what you add explicitly and what is already
579  * added.) You can check whether a constraint is added by calling SCIPconsIsAdded().
580  *
581  * @note In a multi thread case, you need to lock the copying procedure from outside with a mutex.
582  * @note Do not change the source SCIP environment during the copying process
583  *
584  * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
585  * SCIP_Retcode "SCIP_RETCODE" for a complete list of error codes.
586  *
587  * @pre This method can be called if sourcescip is in one of the following stages:
588  * - \ref SCIP_STAGE_PROBLEM
589  * - \ref SCIP_STAGE_TRANSFORMED
590  * - \ref SCIP_STAGE_INITPRESOLVE
591  * - \ref SCIP_STAGE_PRESOLVING
592  * - \ref SCIP_STAGE_EXITPRESOLVE
593  * - \ref SCIP_STAGE_PRESOLVED
594  * - \ref SCIP_STAGE_INITSOLVE
595  * - \ref SCIP_STAGE_SOLVING
596  * - \ref SCIP_STAGE_SOLVED
597  *
598  * @pre This method can be called if targetscip is in one of the following stages:
599  * - \ref SCIP_STAGE_PROBLEM
600  *
601  * @note sourcescip stage does not get changed
602  *
603  * @note targetscip stage does not get changed
604  *
605  * See \ref SCIP_Stage "SCIP_STAGE" for a complete list of all possible solving stages.
606  */
607 SCIP_EXPORT
608 SCIP_RETCODE SCIPcopyConss(
609  SCIP* sourcescip, /**< source SCIP data structure */
610  SCIP* targetscip, /**< target SCIP data structure */
611  SCIP_HASHMAP* varmap, /**< a SCIP_HASHMAP mapping variables of the source SCIP to the corresponding
612  * variables of the target SCIP, or NULL */
613  SCIP_HASHMAP* consmap, /**< a hashmap to store the mapping of source constraints to the corresponding
614  * target constraints, or NULL */
615  SCIP_Bool global, /**< create a global or a local copy? */
616  SCIP_Bool enablepricing, /**< should pricing be enabled in copied SCIP instance?
617  * If TRUE, the modifiable flag of constraints will be copied. */
618  SCIP_Bool* valid /**< pointer to store whether all checked or enforced constraints were validly copied */
619  );
620 
621 /** copies all original constraints from the source-SCIP and adds these to the target-SCIP; for mapping the
622  * variables between the source and the target SCIP a hash map can be given; if the variable hash
623  * map is NULL or necessary variable mapping is missing, the required variables are created in the
624  * target-SCIP and added to the hash map, if not NULL; all variables which are created are added to
625  * the target-SCIP but not (user) captured; if the constraint hash map is not NULL the mapping
626  * between the constraints of the source and target-SCIP is stored
627  *
628  * @note the constraints are added to the target-SCIP but are not (user) captured in the target SCIP. (If you mix
629  * SCIPgetConsCopy() with SCIPcopyConss() you should pay attention to what you add explicitly and what is already
630  * added.) You can check whether a constraint is added by calling SCIPconsIsAdded().
631  *
632  * @note In a multi thread case, you need to lock the copying procedure from outside with a mutex.
633  * @note Do not change the source SCIP environment during the copying process
634  *
635  * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
636  * SCIP_Retcode "SCIP_RETCODE" for a complete list of error codes.
637  *
638  * @pre This method can be called if sourcescip is in one of the following stages:
639  * - \ref SCIP_STAGE_PROBLEM
640  * - \ref SCIP_STAGE_TRANSFORMED
641  * - \ref SCIP_STAGE_INITPRESOLVE
642  * - \ref SCIP_STAGE_PRESOLVING
643  * - \ref SCIP_STAGE_EXITPRESOLVE
644  * - \ref SCIP_STAGE_PRESOLVED
645  * - \ref SCIP_STAGE_INITSOLVE
646  * - \ref SCIP_STAGE_SOLVING
647  * - \ref SCIP_STAGE_SOLVED
648  *
649  * @pre This method can be called if targetscip is in one of the following stages:
650  * - \ref SCIP_STAGE_PROBLEM
651  *
652  * @note sourcescip stage does not get changed
653  *
654  * @note targetscip stage does not get changed
655  *
656  * See \ref SCIP_Stage "SCIP_STAGE" for a complete list of all possible solving stages.
657  */
658 SCIP_EXPORT
659 SCIP_RETCODE SCIPcopyOrigConss(
660  SCIP* sourcescip, /**< source SCIP data structure */
661  SCIP* targetscip, /**< target SCIP data structure */
662  SCIP_HASHMAP* varmap, /**< a SCIP_HASHMAP mapping variables of the source SCIP to the corresponding
663  * variables of the target SCIP, or NULL */
664  SCIP_HASHMAP* consmap, /**< a hashmap to store the mapping of source constraints to the corresponding
665  * target constraints, or NULL */
666  SCIP_Bool enablepricing, /**< should pricing be enabled in copied SCIP instance?
667  * If TRUE, the modifiable flag of constraints will be copied. */
668  SCIP_Bool* valid /**< pointer to store whether all constraints were validly copied */
669  );
670 
671 /** convert all active cuts from cutpool to linear constraints
672  *
673  * @note Do not change the source SCIP environment during the copying process
674  *
675  * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
676  * SCIP_Retcode "SCIP_RETCODE" for a complete list of error codes.
677  *
678  * @pre This method can be called if SCIP is in one of the following stages:
679  * - \ref SCIP_STAGE_PROBLEM
680  * - \ref SCIP_STAGE_INITPRESOLVE
681  * - \ref SCIP_STAGE_PRESOLVING
682  * - \ref SCIP_STAGE_EXITPRESOLVE
683  * - \ref SCIP_STAGE_PRESOLVED
684  * - \ref SCIP_STAGE_SOLVING
685  * - \ref SCIP_STAGE_EXITSOLVE
686  *
687  * @note SCIP stage does not get changed
688  *
689  * See \ref SCIP_Stage "SCIP_STAGE" for a complete list of all possible solving stages.
690  */
691 SCIP_EXPORT
692 SCIP_RETCODE SCIPconvertCutsToConss(
693  SCIP* scip, /**< SCIP data structure */
694  SCIP_HASHMAP* varmap, /**< a hashmap to store the mapping of source variables corresponding
695  * target variables, or NULL */
696  SCIP_HASHMAP* consmap, /**< a hashmap to store the mapping of source constraints to the corresponding
697  * target constraints, or NULL */
698  SCIP_Bool global, /**< create a global or a local copy? */
699  int* ncutsadded /**< pointer to store number of added cuts, or NULL */
700  );
701 
702 /** copies all active cuts from cutpool of sourcescip to linear constraints in targetscip
703  *
704  * Cuts that contain variables that are marked as relaxation-only are skipped.
705  *
706  * @note In a multi thread case, you need to lock the copying procedure from outside with a mutex.
707  * @note Do not change the source SCIP environment during the copying process
708  *
709  * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
710  * SCIP_Retcode "SCIP_RETCODE" for a complete list of error codes.
711  *
712  * @pre This method can be called if sourcescip is in one of the following stages:
713  * - \ref SCIP_STAGE_PROBLEM
714  * - \ref SCIP_STAGE_TRANSFORMED
715  * - \ref SCIP_STAGE_INITPRESOLVE
716  * - \ref SCIP_STAGE_PRESOLVING
717  * - \ref SCIP_STAGE_EXITPRESOLVE
718  * - \ref SCIP_STAGE_PRESOLVED
719  * - \ref SCIP_STAGE_SOLVING
720  * - \ref SCIP_STAGE_SOLVED
721  * - \ref SCIP_STAGE_EXITSOLVE
722  *
723  * @pre This method can be called if targetscip is in one of the following stages:
724  * - \ref SCIP_STAGE_PROBLEM
725  * - \ref SCIP_STAGE_INITPRESOLVE
726  * - \ref SCIP_STAGE_PRESOLVING
727  * - \ref SCIP_STAGE_EXITPRESOLVE
728  * - \ref SCIP_STAGE_PRESOLVED
729  * - \ref SCIP_STAGE_SOLVING
730  * - \ref SCIP_STAGE_EXITSOLVE
731  *
732  * @note sourcescip stage does not get changed
733  *
734  * @note targetscip stage does not get changed
735  *
736  * See \ref SCIP_Stage "SCIP_STAGE" for a complete list of all possible solving stages.
737  */
738 SCIP_EXPORT
739 SCIP_RETCODE SCIPcopyCuts(
740  SCIP* sourcescip, /**< source SCIP data structure */
741  SCIP* targetscip, /**< target SCIP data structure */
742  SCIP_HASHMAP* varmap, /**< a hashmap to store the mapping of source variables corresponding
743  * target variables, or NULL */
744  SCIP_HASHMAP* consmap, /**< a hashmap to store the mapping of source constraints to the corresponding
745  * target constraints, or NULL */
746  SCIP_Bool global, /**< create a global or a local copy? */
747  int* ncutsadded /**< pointer to store number of copied cuts, or NULL */
748  );
749 
750 /** copies all active conflicts from the conflict pool of sourcescip and adds them as linear constraints to targetscip
751  *
752  * @note In a multi thread case, you need to lock the copying procedure from outside with a mutex.
753  * @note Do not change the source SCIP environment during the copying process
754  *
755  * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
756  * SCIP_Retcode "SCIP_RETCODE" for a complete list of error codes.
757  *
758  * @pre This method can be called if sourcescip is in one of the following stages:
759  * - \ref SCIP_STAGE_PROBLEM
760  * - \ref SCIP_STAGE_TRANSFORMED
761  * - \ref SCIP_STAGE_INITPRESOLVE
762  * - \ref SCIP_STAGE_PRESOLVING
763  * - \ref SCIP_STAGE_EXITPRESOLVE
764  * - \ref SCIP_STAGE_PRESOLVED
765  * - \ref SCIP_STAGE_SOLVING
766  * - \ref SCIP_STAGE_SOLVED
767  * - \ref SCIP_STAGE_EXITSOLVE
768  *
769  * @pre This method can be called if targetscip is in one of the following stages:
770  * - \ref SCIP_STAGE_PROBLEM
771  * - \ref SCIP_STAGE_INITPRESOLVE
772  * - \ref SCIP_STAGE_PRESOLVING
773  * - \ref SCIP_STAGE_EXITPRESOLVE
774  * - \ref SCIP_STAGE_PRESOLVED
775  * - \ref SCIP_STAGE_SOLVING
776  * - \ref SCIP_STAGE_EXITSOLVE
777  *
778  * @note sourcescip stage does not change
779  *
780  * @note targetscip stage does not change
781  *
782  * See \ref SCIP_Stage "SCIP_STAGE" for a complete list of all possible solving stages.
783  */
784 SCIP_EXPORT
785 SCIP_RETCODE SCIPcopyConflicts(
786  SCIP* sourcescip, /**< source SCIP data structure */
787  SCIP* targetscip, /**< target SCIP data structure */
788  SCIP_HASHMAP* varmap, /**< a hashmap to store the mapping of source variables corresponding
789  * target variables, or NULL */
790  SCIP_HASHMAP* consmap, /**< a hashmap to store the mapping of source constraints to the corresponding
791  * target constraints, or NULL */
792  SCIP_Bool global, /**< create a global or a local copy? */
793  SCIP_Bool enablepricing, /**< should pricing be enabled in copied SCIP instance?
794  * If TRUE, the modifiable flag of constraints will be copied. */
795  SCIP_Bool* valid /**< pointer to store whether all constraints were validly copied */
796  );
797 
798 /** copies implications and cliques of sourcescip to targetscip
799  *
800  * This function should be called for a targetscip in transformed stage. It can save time in presolving of the
801  * targetscip, since implications and cliques are copied.
802  *
803  * @note In a multi thread case, you need to lock the copying procedure from outside with a mutex.
804  * @note Do not change the source SCIP environment during the copying process
805  *
806  * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
807  * SCIP_Retcode "SCIP_RETCODE" for a complete list of error codes.
808  *
809  * @pre This method can be called if sourcescip is in one of the following stages:
810  * - \ref SCIP_STAGE_TRANSFORMED
811  * - \ref SCIP_STAGE_INITPRESOLVE
812  * - \ref SCIP_STAGE_PRESOLVING
813  * - \ref SCIP_STAGE_EXITPRESOLVE
814  * - \ref SCIP_STAGE_PRESOLVED
815  * - \ref SCIP_STAGE_SOLVING
816  * - \ref SCIP_STAGE_SOLVED
817  * - \ref SCIP_STAGE_EXITSOLVE
818  *
819  * @pre This method can be called if targetscip is in one of the following stages:
820  * - \ref SCIP_STAGE_TRANSFORMED
821  * - \ref SCIP_STAGE_INITPRESOLVE
822  * - \ref SCIP_STAGE_PRESOLVING
823  * - \ref SCIP_STAGE_EXITPRESOLVE
824  * - \ref SCIP_STAGE_PRESOLVED
825  * - \ref SCIP_STAGE_INITSOLVE
826  * - \ref SCIP_STAGE_SOLVING
827  *
828  * @note sourcescip stage does not get changed
829  *
830  * @note targetscip stage does not get changed
831  *
832  * See \ref SCIP_Stage "SCIP_STAGE" for a complete list of all possible solving stages.
833  */
834 SCIP_EXPORT
835 SCIP_RETCODE SCIPcopyImplicationsCliques(
836  SCIP* sourcescip, /**< source SCIP data structure */
837  SCIP* targetscip, /**< target SCIP data structure */
838  SCIP_HASHMAP* varmap, /**< a hashmap to store the mapping of source variables corresponding
839  * target variables, or NULL */
840  SCIP_HASHMAP* consmap, /**< a hashmap to store the mapping of source constraints to the corresponding
841  * target constraints, or NULL */
842  SCIP_Bool global, /**< create a global or a local copy? */
843  SCIP_Bool* infeasible, /**< pointer to store whether an infeasibility was detected */
844  int* nbdchgs, /**< pointer to store the number of performed bound changes, or NULL */
845  int* ncopied /**< pointer to store number of copied implications and cliques, or NULL */
846  );
847 
848 /** copies parameter settings from sourcescip to targetscip
849  *
850  * @note In a multi thread case, you need to lock the copying procedure from outside with a mutex.
851  * @note Do not change the source SCIP environment during the copying process
852  *
853  * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
854  * SCIP_Retcode "SCIP_RETCODE" for a complete list of error codes.
855  *
856  * @pre This method can be called if sourcescip is in one of the following stages:
857  * - \ref SCIP_STAGE_PROBLEM
858  * - \ref SCIP_STAGE_TRANSFORMED
859  * - \ref SCIP_STAGE_INITPRESOLVE
860  * - \ref SCIP_STAGE_PRESOLVING
861  * - \ref SCIP_STAGE_EXITPRESOLVE
862  * - \ref SCIP_STAGE_PRESOLVED
863  * - \ref SCIP_STAGE_INITSOLVE
864  * - \ref SCIP_STAGE_SOLVING
865  * - \ref SCIP_STAGE_SOLVED
866  *
867  * @pre This method can be called if targetscip is in one of the following stages:
868  * - \ref SCIP_STAGE_INIT
869  * - \ref SCIP_STAGE_PROBLEM
870  * - \ref SCIP_STAGE_FREE
871  *
872  * @note sourcescip stage does not get changed
873  *
874  * @note targetscip stage does not get changed
875  *
876  * See \ref SCIP_Stage "SCIP_STAGE" for a complete list of all possible solving stages.
877  */
878 SCIP_EXPORT
879 SCIP_RETCODE SCIPcopyParamSettings(
880  SCIP* sourcescip, /**< source SCIP data structure */
881  SCIP* targetscip /**< target SCIP data structure */
882  );
883 
884 /** gets depth of current scip instance (increased by each copy call)
885  *
886  * @return Depth of subscip of SCIP is returned.
887  *
888  * @pre This method can be called if SCIP is in one of the following stages:
889  * - \ref SCIP_STAGE_PROBLEM
890  * - \ref SCIP_STAGE_TRANSFORMING
891  * - \ref SCIP_STAGE_TRANSFORMED
892  * - \ref SCIP_STAGE_INITPRESOLVE
893  * - \ref SCIP_STAGE_PRESOLVING
894  * - \ref SCIP_STAGE_EXITPRESOLVE
895  * - \ref SCIP_STAGE_PRESOLVED
896  * - \ref SCIP_STAGE_INITSOLVE
897  * - \ref SCIP_STAGE_SOLVING
898  * - \ref SCIP_STAGE_SOLVED
899  * - \ref SCIP_STAGE_EXITSOLVE
900  * - \ref SCIP_STAGE_FREETRANS
901  *
902  * @note SCIP stage does not get changed
903  *
904  * See \ref SCIP_Stage "SCIP_STAGE" for a complete list of all possible solving stages.
905  */
906 SCIP_EXPORT
907 int SCIPgetSubscipDepth(
908  SCIP* scip /**< SCIP data structure */
909  );
910 
911 /** sets depth of scip instance
912  *
913  * @pre This method can be called if SCIP is in one of the following stages:
914  * - \ref SCIP_STAGE_PROBLEM
915  *
916  * @note SCIP stage does not get changed
917  *
918  * See \ref SCIP_Stage "SCIP_STAGE" for a complete list of all possible solving stages.
919  */
920 SCIP_EXPORT
921 void SCIPsetSubscipDepth(
922  SCIP* scip, /**< SCIP data structure */
923  int newdepth /**< new subscip depth */
924  );
925 
926 /** copies source SCIP to target SCIP; the copying process is done in the following order:
927  * 1) copy the plugins
928  * 2) copy the settings
929  * 3) create problem data in target-SCIP and copy the problem data of the source-SCIP
930  * 4) copy all active variables except those are marked as relaxation-only
931  * 5) copy all constraints
932  *
933  * The source problem depends on the stage of the \p sourcescip - In SCIP_STAGE_PROBLEM, the original problem is copied,
934  * otherwise, the transformed problem is copied. For an explicit copy of the original problem, use SCIPcopyOrig().
935  *
936  * @note all variables and constraints which are created in the target-SCIP are not (user) captured
937  *
938  * @note In a multi thread case, you need to lock the copying procedure from outside with a mutex.
939  * Also, 'passmessagehdlr' should be set to FALSE.
940  * @note the 'threadsafe' parameter should only be set to TRUE if you are absolutely certain that the source and target
941  * SCIP instances will be solved in parallel. The usual case is to set this to FALSE, since thread safety
942  * typically incurs a performance cost.
943  * @note Do not change the source SCIP environment during the copying process
944  *
945  * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
946  * SCIP_Retcode "SCIP_RETCODE" for a complete list of error codes.
947  *
948  * @pre This method can be called if sourcescip is in one of the following stages:
949  * - \ref SCIP_STAGE_PROBLEM
950  * - \ref SCIP_STAGE_TRANSFORMED
951  * - \ref SCIP_STAGE_INITPRESOLVE
952  * - \ref SCIP_STAGE_PRESOLVING
953  * - \ref SCIP_STAGE_EXITPRESOLVE
954  * - \ref SCIP_STAGE_PRESOLVED
955  * - \ref SCIP_STAGE_INITSOLVE
956  * - \ref SCIP_STAGE_SOLVING
957  * - \ref SCIP_STAGE_SOLVED
958  *
959  * @pre This method can be called if targetscip is in one of the following stages:
960  * - \ref SCIP_STAGE_INIT
961  * - \ref SCIP_STAGE_FREE
962  *
963  * @note sourcescip stage does not get changed
964  *
965  * @note targetscip stage does not get changed
966  *
967  * See \ref SCIP_Stage "SCIP_STAGE" for a complete list of all possible solving stages.
968  */
969 SCIP_EXPORT
970 SCIP_RETCODE SCIPcopy(
971  SCIP* sourcescip, /**< source SCIP data structure */
972  SCIP* targetscip, /**< target SCIP data structure */
973  SCIP_HASHMAP* varmap, /**< a hashmap to store the mapping of source variables corresponding
974  * target variables, or NULL */
975  SCIP_HASHMAP* consmap, /**< a hashmap to store the mapping of source constraints to the corresponding
976  * target constraints, or NULL */
977  const char* suffix, /**< optional suffix for problem name inside the target SCIP */
978  SCIP_Bool global, /**< create a global or a local copy? */
979  SCIP_Bool enablepricing, /**< should pricing be enabled in copied SCIP instance? If TRUE, pricer
980  * plugins will be copied and activated, and the modifiable flag of
981  * constraints will be respected. If FALSE, valid will be set to FALSE, when
982  * there are pricers present */
983  SCIP_Bool threadsafe, /**< FALSE, if data can be safely shared between the source and target
984  SCIP, otherwise TRUE. This is usually set to FALSE */
985  SCIP_Bool passmessagehdlr, /**< should the message handler be passed */
986  SCIP_Bool* valid /**< pointer to store whether the copying was valid, or NULL */
987  );
988 
989 /** copies source SCIP to target SCIP but compresses constraints
990  *
991  * constraint compression is performed by removing fixed variables immediately
992  * during constraint creation if the involved constraint handlers support
993  * compression
994  *
995  * the copying process is done in the following order:
996  * 1) copy the plugins
997  * 2) copy the settings
998  * 3) create problem data in target-SCIP and copy the problem data of the source-SCIP
999  * 4) copy all active variables except those are marked as relaxation-only
1000  * a) fix all variable copies specified by \p fixedvars, \p fixedvals, and \p nfixedvars
1001  * b) enable constraint compression
1002  * 5) copy all constraints
1003  *
1004  * The source problem depends on the stage of the \p sourcescip - In SCIP_STAGE_PROBLEM, the original problem is copied,
1005  * otherwise, the transformed problem is copied. For an explicit copy of the original problem, use SCIPcopyOrigConsCompression().
1006  *
1007  * @note: in case that a combination of local bounds and explicit fixing values should be used,
1008  * the fixing value of a variable is preferred if local bounds and fixing value disagree.
1009  *
1010  * @note all variables and constraints which are created in the target-SCIP are not (user) captured
1011  *
1012  * @note In a multi thread case, you need to lock the copying procedure from outside with a mutex.
1013  * Also, 'passmessagehdlr' should be set to FALSE.
1014  * @note the 'threadsafe' parameter should only be set to TRUE if you are absolutely certain that the source and target
1015  * SCIP instances will be solved in parallel. The usual case is to set this to FALSE, since thread safety
1016  * typically incurs a performance cost.
1017  * @note Do not change the source SCIP environment during the copying process
1018  *
1019  * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
1020  * SCIP_Retcode "SCIP_RETCODE" for a complete list of error codes.
1021  *
1022  * @pre This method can be called if sourcescip is in one of the following stages:
1023  * - \ref SCIP_STAGE_PROBLEM
1024  * - \ref SCIP_STAGE_TRANSFORMED
1025  * - \ref SCIP_STAGE_INITPRESOLVE
1026  * - \ref SCIP_STAGE_PRESOLVING
1027  * - \ref SCIP_STAGE_EXITPRESOLVE
1028  * - \ref SCIP_STAGE_PRESOLVED
1029  * - \ref SCIP_STAGE_INITSOLVE
1030  * - \ref SCIP_STAGE_SOLVING
1031  * - \ref SCIP_STAGE_SOLVED
1032  *
1033  * @pre This method can be called if targetscip is in one of the following stages:
1034  * - \ref SCIP_STAGE_INIT
1035  * - \ref SCIP_STAGE_FREE
1036  *
1037  * @note sourcescip stage does not get changed
1038  *
1039  * @note targetscip stage does not get changed
1040  *
1041  * See \ref SCIP_Stage "SCIP_STAGE" for a complete list of all possible solving stages.
1042  */
1043 SCIP_EXPORT
1044 SCIP_RETCODE SCIPcopyConsCompression(
1045  SCIP* sourcescip, /**< source SCIP data structure */
1046  SCIP* targetscip, /**< target SCIP data structure */
1047  SCIP_HASHMAP* varmap, /**< a hashmap to store the mapping of source variables corresponding
1048  * target variables, or NULL */
1049  SCIP_HASHMAP* consmap, /**< a hashmap to store the mapping of source constraints to the corresponding
1050  * target constraints, or NULL */
1051  const char* suffix, /**< optional suffix for problem name inside the target SCIP */
1052  SCIP_VAR** fixedvars, /**< source variables whose copies should be fixed in the target SCIP environment, or NULL */
1053  SCIP_Real* fixedvals, /**< array of fixing values for target SCIP variables, or NULL */
1054  int nfixedvars, /**< number of source variables whose copies should be fixed in the target SCIP environment, or NULL */
1055  SCIP_Bool global, /**< create a global or a local copy? */
1056  SCIP_Bool enablepricing, /**< should pricing be enabled in copied SCIP instance? If TRUE, pricer
1057  * plugins will be copied and activated, and the modifiable flag of
1058  * constraints will be respected. If FALSE, valid will be set to FALSE, when
1059  * there are pricers present */
1060  SCIP_Bool threadsafe, /**< FALSE, if data can be safely shared between the source and target
1061  SCIP, otherwise TRUE. This is usually set to FALSE */
1062  SCIP_Bool passmessagehdlr, /**< should the message handler be passed */
1063  SCIP_Bool* valid /**< pointer to store whether the copying was valid, or NULL */
1064  );
1065 
1066 /** copies source SCIP original problem to target SCIP; the copying process is done in the following order:
1067  * 1) copy the plugins
1068  * 2) copy the settings
1069  * 3) create problem data in target-SCIP and copy the original problem data of the source-SCIP
1070  * 4) copy all original variables
1071  * 5) copy all original constraints
1072  *
1073  * @note all variables and constraints which are created in the target-SCIP are not (user) captured
1074  *
1075  * @note In a multi thread case, you need to lock the copying procedure from outside with a mutex.
1076  * Also, 'passmessagehdlr' should be set to FALSE.
1077  * @note the 'threadsafe' parameter should only be set to TRUE if you are absolutely certain that the source and target
1078  * SCIP instances will be solved in parallel. The usual case is to set this to FALSE, since thread safety
1079  * typically incurs a performance cost.
1080  * @note Do not change the source SCIP environment during the copying process
1081  *
1082  * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
1083  * SCIP_Retcode "SCIP_RETCODE" for a complete list of error codes.
1084  *
1085  * @pre This method can be called if sourcescip is in one of the following stages:
1086  * - \ref SCIP_STAGE_PROBLEM
1087  * - \ref SCIP_STAGE_TRANSFORMED
1088  * - \ref SCIP_STAGE_INITPRESOLVE
1089  * - \ref SCIP_STAGE_PRESOLVING
1090  * - \ref SCIP_STAGE_EXITPRESOLVE
1091  * - \ref SCIP_STAGE_PRESOLVED
1092  * - \ref SCIP_STAGE_INITSOLVE
1093  * - \ref SCIP_STAGE_SOLVING
1094  * - \ref SCIP_STAGE_SOLVED
1095  *
1096  * @pre This method can be called if targetscip is in one of the following stages:
1097  * - \ref SCIP_STAGE_INIT
1098  * - \ref SCIP_STAGE_FREE
1099  *
1100  * @note sourcescip stage does not get changed
1101  *
1102  * @note targetscip stage does not get changed
1103  *
1104  * See \ref SCIP_Stage "SCIP_STAGE" for a complete list of all possible solving stages.
1105  */
1106 SCIP_EXPORT
1107 SCIP_RETCODE SCIPcopyOrig(
1108  SCIP* sourcescip, /**< source SCIP data structure */
1109  SCIP* targetscip, /**< target SCIP data structure */
1110  SCIP_HASHMAP* varmap, /**< a hashmap to store the mapping of source variables corresponding
1111  * target variables, or NULL */
1112  SCIP_HASHMAP* consmap, /**< a hashmap to store the mapping of source constraints to the corresponding
1113  * target constraints, or NULL */
1114  const char* suffix, /**< suffix which will be added to the names of the target SCIP, might be empty */
1115  SCIP_Bool enablepricing, /**< should pricing be enabled in copied SCIP instance? If TRUE, pricer
1116  * plugins will be copied and activated, and the modifiable flag of
1117  * constraints will be respected. If FALSE, valid will be set to FALSE, when
1118  * there are pricers present */
1119  SCIP_Bool threadsafe, /**< FALSE, if data can be safely shared between the source and target
1120  SCIP, otherwise TRUE. This is usually set to FALSE */
1121  SCIP_Bool passmessagehdlr, /**< should the message handler be passed */
1122  SCIP_Bool* valid /**< pointer to store whether the copying was valid, or NULL */
1123  );
1124 
1125 /** copies source SCIP original problem to target SCIP but compresses constraints
1126  *
1127  * constraint compression is performed by removing fixed variables immediately
1128  * during constraint creation if the involved constraint handlers support
1129  * compression
1130  *
1131  * the copying process is done in the following order:
1132  * 1) copy the plugins
1133  * 2) copy the settings
1134  * 3) create problem data in target-SCIP and copy the problem data of the source-SCIP
1135  * 4) copy all original variables
1136  * a) fix all variable copies specified by \p fixedvars, \p fixedvals, and \p nfixedvars
1137  * b) enable constraint compression
1138  * 5) copy all constraints
1139  *
1140  * @note all variables and constraints which are created in the target-SCIP are not (user) captured
1141  *
1142  * @note In a multi thread case, you need to lock the copying procedure from outside with a mutex.
1143  * Also, 'passmessagehdlr' should be set to FALSE.
1144  * @note the 'threadsafe' parameter should only be set to TRUE if you are absolutely certain that the source and target
1145  * SCIP instances will be solved in parallel. The usual case is to set this to FALSE, since thread safety
1146  * typically incurs a performance cost.
1147  * @note Do not change the source SCIP environment during the copying process
1148  *
1149  * @return \ref SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See \ref
1150  * SCIP_Retcode "SCIP_RETCODE" for a complete list of error codes.
1151  *
1152  * @pre This method can be called if sourcescip is in one of the following stages:
1153  * - \ref SCIP_STAGE_PROBLEM
1154  * - \ref SCIP_STAGE_TRANSFORMED
1155  * - \ref SCIP_STAGE_INITPRESOLVE
1156  * - \ref SCIP_STAGE_PRESOLVING
1157  * - \ref SCIP_STAGE_EXITPRESOLVE
1158  * - \ref SCIP_STAGE_PRESOLVED
1159  * - \ref SCIP_STAGE_INITSOLVE
1160  * - \ref SCIP_STAGE_SOLVING
1161  * - \ref SCIP_STAGE_SOLVED
1162  *
1163  * @pre This method can be called if targetscip is in one of the following stages:
1164  * - \ref SCIP_STAGE_INIT
1165  * - \ref SCIP_STAGE_FREE
1166  *
1167  * @note sourcescip stage does not get changed
1168  *
1169  * @note targetscip stage does not get changed
1170  *
1171  * See \ref SCIP_Stage "SCIP_STAGE" for a complete list of all possible solving stages.
1172  */
1173 SCIP_EXPORT
1174 SCIP_RETCODE SCIPcopyOrigConsCompression(
1175  SCIP* sourcescip, /**< source SCIP data structure */
1176  SCIP* targetscip, /**< target SCIP data structure */
1177  SCIP_HASHMAP* varmap, /**< a hashmap to store the mapping of source variables corresponding
1178  * target variables, or NULL */
1179  SCIP_HASHMAP* consmap, /**< a hashmap to store the mapping of source constraints to the corresponding
1180  * target constraints, or NULL */
1181  const char* suffix, /**< optional suffix for problem name inside the target SCIP */
1182  SCIP_VAR** fixedvars, /**< source variables whose copies should be fixed in the target SCIP environment, or NULL */
1183  SCIP_Real* fixedvals, /**< array of fixing values for target SCIP variables, or NULL */
1184  int nfixedvars, /**< number of source variables whose copies should be fixed in the target SCIP environment, or NULL */
1185  SCIP_Bool enablepricing, /**< should pricing be enabled in copied SCIP instance? If TRUE, pricer
1186  * plugins will be copied and activated, and the modifiable flag of
1187  * constraints will be respected. If FALSE, valid will be set to FALSE, when
1188  * there are pricers present */
1189  SCIP_Bool threadsafe, /**< FALSE, if data can be safely shared between the source and target
1190  SCIP, otherwise TRUE. This is usually set to FALSE */
1191  SCIP_Bool passmessagehdlr, /**< should the message handler be passed */
1192  SCIP_Bool* valid /**< pointer to store whether the copying was valid, or NULL */
1193  );
1194 
1195 /** checks if there is enough time and memory left for copying the sourcescip into a sub-SCIP and solve the sub-SCIP
1196  *
1197  * This is the case if the time and memory limit that would be passed to the sub-SCIP are larger than 0.0
1198  *
1199  * @pre This method can be called if sourcescip is in one of the following stages:
1200  * - \ref SCIP_STAGE_PROBLEM
1201  * - \ref SCIP_STAGE_TRANSFORMED
1202  * - \ref SCIP_STAGE_INITPRESOLVE
1203  * - \ref SCIP_STAGE_PRESOLVING
1204  * - \ref SCIP_STAGE_EXITPRESOLVE
1205  * - \ref SCIP_STAGE_PRESOLVED
1206  * - \ref SCIP_STAGE_INITSOLVE
1207  * - \ref SCIP_STAGE_SOLVING
1208  * - \ref SCIP_STAGE_SOLVED
1209  *
1210  * See \ref SCIP_Stage "SCIP_STAGE" for a complete list of all possible solving stages.
1211  */
1212 SCIP_EXPORT
1213 SCIP_RETCODE SCIPcheckCopyLimits(
1214  SCIP* sourcescip, /**< source SCIP data structure */
1215  SCIP_Bool* success /**< pointer to store whether there is time and memory left to copy the
1216  * problem and run the sub-SCIP */
1217  );
1218 
1219 /** copies limits from source SCIP to target SCIP
1220  *
1221  * @note time and memory limit are reduced by the amount already spent in the source SCIP before installing the limit
1222  * in the target SCIP
1223  * @note all other limits are disabled and need to be enabled afterwards, if needed
1224  *
1225  * @see SCIPsetCommonSubscipParams() to set further working limits and other parameters commonly used for auxiliary problems
1226  *
1227  * @pre This method can be called if sourcescip is in one of the following stages:
1228  * - \ref SCIP_STAGE_PROBLEM
1229  * - \ref SCIP_STAGE_TRANSFORMED
1230  * - \ref SCIP_STAGE_INITPRESOLVE
1231  * - \ref SCIP_STAGE_PRESOLVING
1232  * - \ref SCIP_STAGE_EXITPRESOLVE
1233  * - \ref SCIP_STAGE_PRESOLVED
1234  * - \ref SCIP_STAGE_INITSOLVE
1235  * - \ref SCIP_STAGE_SOLVING
1236  * - \ref SCIP_STAGE_SOLVED
1237  *
1238  * See \ref SCIP_Stage "SCIP_STAGE" for a complete list of all possible solving stages.
1239  */
1240 SCIP_EXPORT
1241 SCIP_RETCODE SCIPcopyLimits(
1242  SCIP* sourcescip, /**< source SCIP data structure */
1243  SCIP* targetscip /**< target SCIP data structure */
1244  );
1245 
1246 
1247 /** sets the working limits as well as common search parameters for the auxiliary problem
1248  *
1249  * @note memory and time limits are not affected, and must be set using SCIPcopyLimits() instead
1250  */
1251 SCIP_EXPORT
1252 SCIP_RETCODE SCIPsetCommonSubscipParams(
1253  SCIP* sourcescip, /**< source SCIP data structure */
1254  SCIP* subscip, /**< target SCIP data structure, often a copy of \p sourcescip */
1255  SCIP_Longint nsubnodes, /**< nodelimit for subscip, or -1 for no limit */
1256  SCIP_Longint nstallnodes, /**< stall node limit for subscip, or -1 for no limit */
1257  int bestsollimit /**< the limit on the number of best solutions found, or -1 for no limit */
1258  );
1259 
1260 
1261 /**@} */
1262 
1263 #ifdef __cplusplus
1264 }
1265 #endif
1266 
1267 #endif
SCIPsetCommonSubscipParams
SCIP_EXPORT SCIP_RETCODE SCIPsetCommonSubscipParams(SCIP *sourcescip, SCIP *subscip, SCIP_Longint nsubnodes, SCIP_Longint nstallnodes, int bestsollimit)
Definition: scip_copy.c:3269
SCIPcopyBenders
SCIP_EXPORT SCIP_RETCODE SCIPcopyBenders(SCIP *sourcescip, SCIP *targetscip, SCIP_HASHMAP *varmap, SCIP_Bool threadsafe, SCIP_Bool *valid)
Definition: scip_copy.c:345
SCIPcopyConss
SCIP_EXPORT SCIP_RETCODE SCIPcopyConss(SCIP *sourcescip, SCIP *targetscip, SCIP_HASHMAP *varmap, SCIP_HASHMAP *consmap, SCIP_Bool global, SCIP_Bool enablepricing, SCIP_Bool *valid)
Definition: scip_copy.c:1673
type_misc.h
type definitions for miscellaneous datastructures
SCIPtranslateSubSol
SCIP_EXPORT SCIP_RETCODE SCIPtranslateSubSol(SCIP *scip, SCIP *subscip, SCIP_SOL *subsol, SCIP_HEUR *heur, SCIP_VAR **subvars, SCIP_SOL **newsol)
Definition: scip_copy.c:1356
SCIPcopyOrig
SCIP_EXPORT SCIP_RETCODE SCIPcopyOrig(SCIP *sourcescip, SCIP *targetscip, SCIP_HASHMAP *varmap, SCIP_HASHMAP *consmap, const char *suffix, SCIP_Bool enablepricing, SCIP_Bool threadsafe, SCIP_Bool passmessagehdlr, SCIP_Bool *valid)
Definition: scip_copy.c:2989
SCIPcopyOrigConss
SCIP_EXPORT SCIP_RETCODE SCIPcopyOrigConss(SCIP *sourcescip, SCIP *targetscip, SCIP_HASHMAP *varmap, SCIP_HASHMAP *consmap, SCIP_Bool enablepricing, SCIP_Bool *valid)
Definition: scip_copy.c:1878
SCIP_EXPORT
#define SCIP_EXPORT
Definition: def.h:100
SCIP_Var
Definition: struct_var.h:198
SCIPgetConsCopy
SCIP_EXPORT SCIP_RETCODE SCIPgetConsCopy(SCIP *sourcescip, SCIP *targetscip, SCIP_CONS *sourcecons, SCIP_CONS **targetcons, SCIP_CONSHDLR *sourceconshdlr, SCIP_HASHMAP *varmap, SCIP_HASHMAP *consmap, const char *name, 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: scip_copy.c:1534
SCIPtranslateSubSols
SCIP_EXPORT SCIP_RETCODE SCIPtranslateSubSols(SCIP *scip, SCIP *subscip, SCIP_HEUR *heur, SCIP_VAR **subvars, SCIP_Bool *success, int *solindex)
Definition: scip_copy.c:1396
SCIPcopyOrigConsCompression
SCIP_EXPORT SCIP_RETCODE SCIPcopyOrigConsCompression(SCIP *sourcescip, SCIP *targetscip, SCIP_HASHMAP *varmap, SCIP_HASHMAP *consmap, const char *suffix, SCIP_VAR **fixedvars, SCIP_Real *fixedvals, int nfixedvars, SCIP_Bool enablepricing, SCIP_Bool threadsafe, SCIP_Bool passmessagehdlr, SCIP_Bool *valid)
Definition: scip_copy.c:3076
SCIP_RETCODE
enum SCIP_Retcode SCIP_RETCODE
Definition: type_retcode.h:54
SCIPcopy
SCIP_EXPORT SCIP_RETCODE SCIPcopy(SCIP *sourcescip, SCIP *targetscip, SCIP_HASHMAP *varmap, SCIP_HASHMAP *consmap, const char *suffix, SCIP_Bool global, SCIP_Bool enablepricing, SCIP_Bool threadsafe, SCIP_Bool passmessagehdlr, SCIP_Bool *valid)
Definition: scip_copy.c:2814
type_retcode.h
type definitions for return codes for SCIP methods
SCIPcopyOrigProb
SCIP_EXPORT SCIP_RETCODE SCIPcopyOrigProb(SCIP *sourcescip, SCIP *targetscip, SCIP_HASHMAP *varmap, SCIP_HASHMAP *consmap, const char *name)
Definition: scip_copy.c:566
SCIPcheckCopyLimits
SCIP_EXPORT SCIP_RETCODE SCIPcheckCopyLimits(SCIP *sourcescip, SCIP_Bool *success)
Definition: scip_copy.c:3192
SCIPcopyProb
SCIP_EXPORT SCIP_RETCODE SCIPcopyProb(SCIP *sourcescip, SCIP *targetscip, SCIP_HASHMAP *varmap, SCIP_HASHMAP *consmap, SCIP_Bool global, const char *name)
Definition: scip_copy.c:513
SCIP_Sol
Definition: struct_sol.h:64
SCIPgetVarCopy
SCIP_EXPORT SCIP_RETCODE SCIPgetVarCopy(SCIP *sourcescip, SCIP *targetscip, SCIP_VAR *sourcevar, SCIP_VAR **targetvar, SCIP_HASHMAP *varmap, SCIP_HASHMAP *consmap, SCIP_Bool global, SCIP_Bool *success)
Definition: scip_copy.c:697
SCIP_HashMap
Definition: struct_misc.h:128
SCIPcopyParamSettings
SCIP_EXPORT SCIP_RETCODE SCIPcopyParamSettings(SCIP *sourcescip, SCIP *targetscip)
Definition: scip_copy.c:2507
SCIP_Cons
Definition: struct_cons.h:37
SCIP_Conshdlr
Definition: struct_cons.h:117
type_scip.h
type definitions for SCIP&#39;s main datastructure
SCIPcopyCuts
SCIP_EXPORT SCIP_RETCODE SCIPcopyCuts(SCIP *sourcescip, SCIP *targetscip, SCIP_HASHMAP *varmap, SCIP_HASHMAP *consmap, SCIP_Bool global, int *ncutsadded)
Definition: scip_copy.c:2073
SCIPmergeVariableStatistics
SCIP_EXPORT SCIP_RETCODE SCIPmergeVariableStatistics(SCIP *sourcescip, SCIP *targetscip, SCIP_VAR **sourcevars, SCIP_VAR **targetvars, int nvars)
Definition: scip_copy.c:1251
SCIPisConsCompressionEnabled
SCIP_EXPORT SCIP_Bool SCIPisConsCompressionEnabled(SCIP *scip)
Definition: scip_copy.c:646
type_var.h
type definitions for problem variables
SCIP_Heur
Definition: struct_heur.h:88
SCIPsetSubscipDepth
SCIP_EXPORT void SCIPsetSubscipDepth(SCIP *scip, int newdepth)
Definition: scip_copy.c:2569
SCIP_Bool
#define SCIP_Bool
Definition: def.h:70
SCIPcopyConsCompression
SCIP_EXPORT SCIP_RETCODE SCIPcopyConsCompression(SCIP *sourcescip, SCIP *targetscip, SCIP_HASHMAP *varmap, SCIP_HASHMAP *consmap, const char *suffix, SCIP_VAR **fixedvars, SCIP_Real *fixedvals, int nfixedvars, SCIP_Bool global, SCIP_Bool enablepricing, SCIP_Bool threadsafe, SCIP_Bool passmessagehdlr, SCIP_Bool *valid)
Definition: scip_copy.c:2908
SCIPcopyLimits
SCIP_EXPORT SCIP_RETCODE SCIPcopyLimits(SCIP *sourcescip, SCIP *targetscip)
Definition: scip_copy.c:3228
SCIPcopyVars
SCIP_EXPORT SCIP_RETCODE SCIPcopyVars(SCIP *sourcescip, SCIP *targetscip, SCIP_HASHMAP *varmap, SCIP_HASHMAP *consmap, SCIP_VAR **fixedvars, SCIP_Real *fixedvals, int nfixedvars, SCIP_Bool global)
Definition: scip_copy.c:1164
SCIPenableConsCompression
SCIP_EXPORT SCIP_RETCODE SCIPenableConsCompression(SCIP *scip)
Definition: scip_copy.c:607
SCIPcopyConflicts
SCIP_EXPORT SCIP_RETCODE SCIPcopyConflicts(SCIP *sourcescip, SCIP *targetscip, SCIP_HASHMAP *varmap, SCIP_HASHMAP *consmap, SCIP_Bool global, SCIP_Bool enablepricing, SCIP_Bool *valid)
Definition: scip_copy.c:2165
SCIPcopyOrigVars
SCIP_EXPORT SCIP_RETCODE SCIPcopyOrigVars(SCIP *sourcescip, SCIP *targetscip, SCIP_HASHMAP *varmap, SCIP_HASHMAP *consmap, SCIP_VAR **fixedvars, SCIP_Real *fixedvals, int nfixedvars)
Definition: scip_copy.c:1221
SCIP_Real
#define SCIP_Real
Definition: def.h:163
SCIPcopyPlugins
SCIP_EXPORT SCIP_RETCODE SCIPcopyPlugins(SCIP *sourcescip, SCIP *targetscip, SCIP_Bool copyreaders, SCIP_Bool copypricers, SCIP_Bool copyconshdlrs, SCIP_Bool copyconflicthdlrs, SCIP_Bool copypresolvers, SCIP_Bool copyrelaxators, SCIP_Bool copyseparators, SCIP_Bool copypropagators, SCIP_Bool copyheuristics, SCIP_Bool copyeventhdlrs, SCIP_Bool copynodeselectors, SCIP_Bool copybranchrules, SCIP_Bool copydisplays, SCIP_Bool copydialogs, SCIP_Bool copytables, SCIP_Bool copynlpis, SCIP_Bool passmessagehdlr, SCIP_Bool *valid)
Definition: scip_copy.c:265
SCIP_Longint
#define SCIP_Longint
Definition: def.h:148
SCIPcopyImplicationsCliques
SCIP_EXPORT SCIP_RETCODE SCIPcopyImplicationsCliques(SCIP *sourcescip, SCIP *targetscip, SCIP_HASHMAP *varmap, SCIP_HASHMAP *consmap, SCIP_Bool global, SCIP_Bool *infeasible, int *nbdchgs, int *ncopied)
Definition: scip_copy.c:2323
def.h
common defines and data types used in all packages of SCIP
SCIPgetSubscipDepth
SCIP_EXPORT int SCIPgetSubscipDepth(SCIP *scip)
Definition: scip_copy.c:2548
SCIPconvertCutsToConss
SCIP_EXPORT SCIP_RETCODE SCIPconvertCutsToConss(SCIP *scip, SCIP_HASHMAP *varmap, SCIP_HASHMAP *consmap, SCIP_Bool global, int *ncutsadded)
Definition: scip_copy.c:2011
type_cons.h
type definitions for constraints and constraint handlers