cons_bounddisjunction.c File Reference

Detailed Description

constraint handler for bound disjunction constraints \((x_1 \{\leq,\geq\} b_1) \vee \ldots \vee (x_n \{\leq,\geq\} b_n)\)

Author

Tobias Achterberg

Marc Pfetsch

Definition in file cons_bounddisjunction.c.

#include "blockmemshell/memory.h"
#include "scip/cons_bounddisjunction.h"
#include "scip/cons_linear.h"
#include "scip/cons_logicor.h"
#include "scip/cons_quadratic.h"
#include "scip/cons_setppc.h"
#include "scip/pub_conflict.h"
#include "scip/pub_cons.h"
#include "scip/pub_event.h"
#include "scip/pub_lp.h"
#include "scip/pub_message.h"
#include "scip/pub_misc.h"
#include "scip/pub_var.h"
#include "scip/scip_branch.h"
#include "scip/scip_conflict.h"
#include "scip/scip_cons.h"
#include "scip/scip_copy.h"
#include "scip/scip_event.h"
#include "scip/scip_general.h"
#include "scip/scip_mem.h"
#include "scip/scip_message.h"
#include "scip/scip_numerics.h"
#include "scip/scip_param.h"
#include "scip/scip_prob.h"
#include "scip/scip_probing.h"
#include "scip/scip_sol.h"
#include "scip/scip_solvingstats.h"
#include "scip/scip_tree.h"
#include "scip/scip_var.h"
#include <ctype.h>
#include <string.h>

Go to the source code of this file.

Macros
Constraint handler properties
#define	CONSHDLR_NAME   "bounddisjunction"
#define	CONSHDLR_DESC   "bound disjunction constraints"
#define	CONSHDLR_ENFOPRIORITY   -3000000
#define	CONSHDLR_CHECKPRIORITY   -3000000
#define	CONSHDLR_PROPFREQ   1
#define	CONSHDLR_EAGERFREQ   100
#define	CONSHDLR_MAXPREROUNDS   -1
#define	CONSHDLR_DELAYPROP   FALSE
#define	CONSHDLR_NEEDSCONS   TRUE
#define	CONSHDLR_PRESOLTIMING   SCIP_PRESOLTIMING_FAST
#define	CONSHDLR_PROP_TIMING   SCIP_PROPTIMING_BEFORELP
#define	QUADCONSUPGD_PRIORITY   500000
Event handler properties
#define	EVENTHDLR_NAME   "bounddisjunction"
#define	EVENTHDLR_DESC   "event handler for bound disjunction constraints"
Conflict handler properties
#define	CONFLICTHDLR_NAME   "bounddisjunction"
#define	CONFLICTHDLR_DESC   "conflict handler creating bound disjunction constraints"
#define	CONFLICTHDLR_PRIORITY   -3000000
Default parameter values
#define	DEFAULT_CONTINUOUSFRAC   0.4
Age increase defines
#define	AGEINCREASE(n)   (1.0 + 0.2*n)
Comparison for two values
#define	isFeasLT(scip, var, val1, val2)   SCIPisFeasLT(scip, val1, val2)
#define	isFeasLE(scip, var, val1, val2)   SCIPisFeasLE(scip, val1, val2)
#define	isFeasGT(scip, var, val1, val2)   SCIPisFeasGT(scip, val1, val2)
#define	isFeasGE(scip, var, val1, val2)   SCIPisFeasGE(scip, val1, val2)

Functions
Local methods
static SCIP_RETCODE	lockRounding (SCIP *scip, SCIP_CONS *cons, SCIP_CONSDATA *consdata, int pos)
static SCIP_RETCODE	unlockRounding (SCIP *scip, SCIP_CONS *cons, SCIP_CONSDATA *consdata, int pos)
static SCIP_RETCODE	catchEvents (SCIP *scip, SCIP_CONS *cons, SCIP_CONSDATA *consdata, SCIP_EVENTHDLR *eventhdlr, int pos, int *filterpos)
static SCIP_RETCODE	dropEvents (SCIP *scip, SCIP_CONS *cons, SCIP_CONSDATA *consdata, SCIP_EVENTHDLR *eventhdlr, int pos, int filterpos)
static SCIP_RETCODE	conshdlrdataCreate (SCIP *scip, SCIP_CONSHDLRDATA **conshdlrdata, SCIP_EVENTHDLR *eventhdlr)
static void	conshdlrdataFree (SCIP *scip, SCIP_CONSHDLRDATA **conshdlrdata)
static SCIP_RETCODE	consdataCreate (SCIP *scip, SCIP_CONSDATA **consdata, int nvars, SCIP_VAR **vars, SCIP_BOUNDTYPE *boundtypes, SCIP_Real *bounds)
static void	consdataFree (SCIP *scip, SCIP_CONSDATA **consdata)
static void	consdataPrint (SCIP *scip, SCIP_CONSDATA *consdata, FILE *file, SCIP_Bool endline)
static SCIP_RETCODE	switchWatchedvars (SCIP *scip, SCIP_CONS *cons, SCIP_EVENTHDLR *eventhdlr, int watchedvar1, int watchedvar2)
static SCIP_Bool	isOverlapping (SCIP *scip, SCIP_VAR *var, SCIP_BOUNDTYPE boundtype1, SCIP_Real bound1, SCIP_BOUNDTYPE boundtype2, SCIP_Real bound2)
static SCIP_RETCODE	delCoefPos (SCIP *scip, SCIP_CONS *cons, SCIP_EVENTHDLR *eventhdlr, int pos)
static SCIP_RETCODE	addCoef (SCIP *scip, SCIP_CONS *cons, SCIP_EVENTHDLR *eventhdlr, SCIP_VAR *var, SCIP_BOUNDTYPE boundtype, SCIP_Real bound, SCIP_Bool *redundant)
static SCIP_RETCODE	applyGlobalBounds (SCIP *scip, SCIP_CONS *cons, SCIP_EVENTHDLR *eventhdlr, SCIP_Bool *redundant)
static SCIP_Bool	isLiteralSatisfied (SCIP *scip, SCIP_CONSDATA *consdata, int pos)
static SCIP_Bool	isLiteralViolated (SCIP *scip, SCIP_CONSDATA *consdata, int pos)
static SCIP_RETCODE	removeFixedVariables (SCIP *scip, SCIP_CONS *cons, SCIP_EVENTHDLR *eventhdlr, SCIP_Bool *redundant)
static SCIP_RETCODE	upgradeCons (SCIP *scip, SCIP_CONS *cons, int *ndelconss, int *naddconss)
static SCIP_RETCODE	analyzeConflict (SCIP *scip, SCIP_CONS *cons)
static SCIP_RETCODE	disableCons (SCIP *scip, SCIP_CONS *cons)
static SCIP_RETCODE	processWatchedVars (SCIP *scip, SCIP_CONS *cons, SCIP_EVENTHDLR *eventhdlr, SCIP_Bool *cutoff, SCIP_Bool *infeasible, SCIP_Bool *reduceddom, SCIP_Bool *mustcheck)
static SCIP_Bool	isConsViolated (SCIP *scip, SCIP_CONS *cons, SCIP_SOL *sol)
static SCIP_RETCODE	registerBranchingCandidates (SCIP *scip, SCIP_CONS *cons, SCIP_SOL *sol, SCIP_Bool *neednarybranch)
static SCIP_RETCODE	enforceCurrentSol (SCIP *scip, SCIP_CONS *cons, SCIP_SOL *sol, SCIP_EVENTHDLR *eventhdlr, SCIP_Bool *cutoff, SCIP_Bool *infeasible, SCIP_Bool *reduceddom, SCIP_Bool *registeredbrcand)
static SCIP_RETCODE	createNAryBranch (SCIP *scip, SCIP_CONS *cons, SCIP_SOL *sol)
static SCIP_RETCODE	enforceConstraint (SCIP *scip, SCIP_CONSHDLR *conshdlr, SCIP_CONS **conss, int nconss, SCIP_SOL *sol, SCIP_RESULT *result)
Upgrading methods for special quadratic constraint
static	SCIP_DECL_QUADCONSUPGD (upgradeConsQuadratic)
Callback methods of constraint handler
static	SCIP_DECL_CONSHDLRCOPY (conshdlrCopyBounddisjunction)
static	SCIP_DECL_CONSFREE (consFreeBounddisjunction)
static	SCIP_DECL_CONSEXITPRE (consExitpreBounddisjunction)
static	SCIP_DECL_CONSDELETE (consDeleteBounddisjunction)
static	SCIP_DECL_CONSTRANS (consTransBounddisjunction)
static	SCIP_DECL_CONSENFOLP (consEnfolpBounddisjunction)
static	SCIP_DECL_CONSENFORELAX (consEnforelaxBounddisjunction)
static	SCIP_DECL_CONSENFOPS (consEnfopsBounddisjunction)
static	SCIP_DECL_CONSCHECK (consCheckBounddisjunction)
static	SCIP_DECL_CONSPROP (consPropBounddisjunction)
static	SCIP_DECL_CONSPRESOL (consPresolBounddisjunction)
static	SCIP_DECL_CONSRESPROP (consRespropBounddisjunction)
static	SCIP_DECL_CONSLOCK (consLockBounddisjunction)
static	SCIP_DECL_CONSACTIVE (consActiveBounddisjunction)
static	SCIP_DECL_CONSDEACTIVE (consDeactiveBounddisjunction)
static	SCIP_DECL_CONSPRINT (consPrintBounddisjunction)
static	SCIP_DECL_CONSCOPY (consCopyBounddisjunction)
static	SCIP_DECL_CONSPARSE (consParseBounddisjunction)
static	SCIP_DECL_CONSGETVARS (consGetVarsBounddisjunction)
static	SCIP_DECL_CONSGETNVARS (consGetNVarsBounddisjunction)
Callback methods of event handler
static	SCIP_DECL_EVENTEXEC (eventExecBounddisjunction)
Callback methods of conflict handler
static	SCIP_DECL_CONFLICTEXEC (conflictExecBounddisjunction)
static	SCIP_DECL_CONFLICTFREE (conflictFreeBounddisjunction)
Interface methods
SCIP_RETCODE	SCIPincludeConshdlrBounddisjunction (SCIP *scip)
SCIP_RETCODE	SCIPcreateConsBounddisjunction (SCIP *scip, SCIP_CONS **cons, const char *name, int nvars, SCIP_VAR **vars, SCIP_BOUNDTYPE *boundtypes, SCIP_Real *bounds, 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_RETCODE	SCIPcreateConsBasicBounddisjunction (SCIP *scip, SCIP_CONS **cons, const char *name, int nvars, SCIP_VAR **vars, SCIP_BOUNDTYPE *boundtypes, SCIP_Real *bounds)
int	SCIPgetNVarsBounddisjunction (SCIP *scip, SCIP_CONS *cons)
SCIP_VAR **	SCIPgetVarsBounddisjunction (SCIP *scip, SCIP_CONS *cons)
SCIP_BOUNDTYPE *	SCIPgetBoundtypesBounddisjunction (SCIP *scip, SCIP_CONS *cons)
SCIP_Real *	SCIPgetBoundsBounddisjunction (SCIP *scip, SCIP_CONS *cons)

Macro Definition Documentation

CONSHDLR_NAME

#define CONSHDLR_NAME   "bounddisjunction"

Definition at line 62 of file cons_bounddisjunction.c.

Referenced by createNAryBranch(), enforceConstraint(), enforceCurrentSol(), processWatchedVars(), registerBranchingCandidates(), SCIP_DECL_CONSACTIVE(), SCIP_DECL_CONSCHECK(), SCIP_DECL_CONSDEACTIVE(), SCIP_DECL_CONSDELETE(), SCIP_DECL_CONSENFOPS(), SCIP_DECL_CONSEXITPRE(), SCIP_DECL_CONSFREE(), SCIP_DECL_CONSHDLRCOPY(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_CONSPROP(), SCIP_DECL_CONSRESPROP(), SCIP_DECL_CONSTRANS(), SCIPcreateConsBounddisjunction(), SCIPgetBoundsBounddisjunction(), SCIPgetBoundtypesBounddisjunction(), SCIPgetNVarsBounddisjunction(), SCIPgetVarsBounddisjunction(), and SCIPincludeConshdlrBounddisjunction().

CONSHDLR_DESC

#define CONSHDLR_DESC   "bound disjunction constraints"

Definition at line 63 of file cons_bounddisjunction.c.

Referenced by SCIPincludeConshdlrBounddisjunction().

CONSHDLR_ENFOPRIORITY

#define CONSHDLR_ENFOPRIORITY   -3000000

priority of the constraint handler for constraint enforcing

Definition at line 64 of file cons_bounddisjunction.c.

Referenced by SCIPincludeConshdlrBounddisjunction().

CONSHDLR_CHECKPRIORITY

#define CONSHDLR_CHECKPRIORITY   -3000000

priority of the constraint handler for checking feasibility

Definition at line 65 of file cons_bounddisjunction.c.

Referenced by SCIPincludeConshdlrBounddisjunction().

CONSHDLR_PROPFREQ

#define CONSHDLR_PROPFREQ   1

frequency for propagating domains; zero means only preprocessing propagation

Definition at line 66 of file cons_bounddisjunction.c.

Referenced by SCIPincludeConshdlrBounddisjunction().

CONSHDLR_EAGERFREQ

#define CONSHDLR_EAGERFREQ   100

frequency for using all instead of only the useful constraints in separation, propagation and enforcement, -1 for no eager evaluations, 0 for first only

Definition at line 67 of file cons_bounddisjunction.c.

Referenced by SCIPincludeConshdlrBounddisjunction().

CONSHDLR_MAXPREROUNDS

#define CONSHDLR_MAXPREROUNDS   -1

maximal number of presolving rounds the constraint handler participates in (-1: no limit)

Definition at line 70 of file cons_bounddisjunction.c.

Referenced by SCIPincludeConshdlrBounddisjunction().

CONSHDLR_DELAYPROP

#define CONSHDLR_DELAYPROP   FALSE

should propagation method be delayed, if other propagators found reductions?

Definition at line 71 of file cons_bounddisjunction.c.

Referenced by SCIPincludeConshdlrBounddisjunction().

CONSHDLR_NEEDSCONS

#define CONSHDLR_NEEDSCONS   TRUE

should the constraint handler be skipped, if no constraints are available?

Definition at line 72 of file cons_bounddisjunction.c.

Referenced by SCIPincludeConshdlrBounddisjunction().

CONSHDLR_PRESOLTIMING

#define CONSHDLR_PRESOLTIMING   SCIP_PRESOLTIMING_FAST

Definition at line 74 of file cons_bounddisjunction.c.

Referenced by SCIPincludeConshdlrBounddisjunction().

CONSHDLR_PROP_TIMING

#define CONSHDLR_PROP_TIMING   SCIP_PROPTIMING_BEFORELP

Definition at line 75 of file cons_bounddisjunction.c.

Referenced by SCIPincludeConshdlrBounddisjunction().

QUADCONSUPGD_PRIORITY

#define QUADCONSUPGD_PRIORITY   500000

priority of the constraint handler for upgrading of quadratic constraints

Definition at line 77 of file cons_bounddisjunction.c.

Referenced by SCIPincludeConshdlrBounddisjunction().

EVENTHDLR_NAME

#define EVENTHDLR_NAME   "bounddisjunction"

Definition at line 86 of file cons_bounddisjunction.c.

Referenced by SCIP_DECL_EVENTEXEC(), and SCIPincludeConshdlrBounddisjunction().

EVENTHDLR_DESC

#define EVENTHDLR_DESC   "event handler for bound disjunction constraints"

Definition at line 87 of file cons_bounddisjunction.c.

Referenced by SCIPincludeConshdlrBounddisjunction().

CONFLICTHDLR_NAME

#define CONFLICTHDLR_NAME   "bounddisjunction"

Definition at line 96 of file cons_bounddisjunction.c.

Referenced by SCIP_DECL_CONFLICTEXEC(), and SCIPincludeConshdlrBounddisjunction().

CONFLICTHDLR_DESC

#define CONFLICTHDLR_DESC   "conflict handler creating bound disjunction constraints"

Definition at line 97 of file cons_bounddisjunction.c.

Referenced by SCIPincludeConshdlrBounddisjunction().

CONFLICTHDLR_PRIORITY

#define CONFLICTHDLR_PRIORITY   -3000000

Definition at line 98 of file cons_bounddisjunction.c.

Referenced by SCIPincludeConshdlrBounddisjunction().

DEFAULT_CONTINUOUSFRAC

#define DEFAULT_CONTINUOUSFRAC   0.4

maximal percantage of continuous variables within a conflict

Definition at line 107 of file cons_bounddisjunction.c.

Referenced by SCIPincludeConshdlrBounddisjunction().

AGEINCREASE

#define AGEINCREASE

(

n

)

(1.0 + 0.2*n)

Definition at line 118 of file cons_bounddisjunction.c.

Referenced by processWatchedVars().

isFeasLT

#define isFeasLT	(		scip,
			var,
			val1,
			val2
	)		SCIPisFeasLT(scip, val1, val2)

Definition at line 138 of file cons_bounddisjunction.c.

Referenced by applyGlobalBounds(), createNAryBranch(), isLiteralViolated(), and registerBranchingCandidates().

isFeasLE

#define isFeasLE	(		scip,
			var,
			val1,
			val2
	)		SCIPisFeasLE(scip, val1, val2)

Definition at line 139 of file cons_bounddisjunction.c.

Referenced by applyGlobalBounds(), consdataCreate(), createNAryBranch(), isConsViolated(), isLiteralSatisfied(), and removeFixedVariables().

isFeasGT

#define isFeasGT	(		scip,
			var,
			val1,
			val2
	)		SCIPisFeasGT(scip, val1, val2)

Definition at line 140 of file cons_bounddisjunction.c.

Referenced by applyGlobalBounds(), createNAryBranch(), isLiteralViolated(), and registerBranchingCandidates().

isFeasGE

#define isFeasGE	(		scip,
			var,
			val1,
			val2
	)		SCIPisFeasGE(scip, val1, val2)

Definition at line 141 of file cons_bounddisjunction.c.

Referenced by applyGlobalBounds(), consdataCreate(), createNAryBranch(), isConsViolated(), isLiteralSatisfied(), and removeFixedVariables().

Function Documentation

lockRounding()

static SCIP_RETCODE lockRounding ( SCIP *  scip, SCIP_CONS *  cons, SCIP_CONSDATA *  consdata, int  pos  )

static

adds rounding locks for the given variable in the given bound disjunction constraint

Parameters

scip	SCIP data structure
cons	bound disjunction constraint
consdata	bound disjunction constraint data
pos	position of the variable in the constraint

Definition at line 173 of file cons_bounddisjunction.c.

References FALSE, NULL, SCIP_BOUNDTYPE_LOWER, SCIP_CALL, SCIP_OKAY, SCIPlockVarCons(), TRUE, and unlockRounding().

Referenced by addCoef().

unlockRounding()

static SCIP_RETCODE unlockRounding ( SCIP *  scip, SCIP_CONS *  cons, SCIP_CONSDATA *  consdata, int  pos  )

static

removes rounding locks for the given variable in the given bound disjunction constraint

Parameters

scip	SCIP data structure
cons	bound disjunction constraint
consdata	bound disjunction constraint data
pos	position of the variable in the constraint

Definition at line 197 of file cons_bounddisjunction.c.

References catchEvents(), FALSE, NULL, SCIP_BOUNDTYPE_LOWER, SCIP_CALL, SCIP_OKAY, SCIPunlockVarCons(), and TRUE.

Referenced by delCoefPos(), and lockRounding().

catchEvents()

static SCIP_RETCODE catchEvents ( SCIP *  scip, SCIP_CONS *  cons, SCIP_CONSDATA *  consdata, SCIP_EVENTHDLR *  eventhdlr, int  pos, int *  filterpos  )

static

catches the events on a single variable of the bound disjunction constraint

Parameters

scip	SCIP data structure
cons	bound disjunction constraint
consdata	bound disjunction constraint data
eventhdlr	event handler to call for the event processing
pos	position of the variable in the constraint
filterpos	pointer to store position of event filter entry, or NULL

Definition at line 221 of file cons_bounddisjunction.c.

References dropEvents(), NULL, SCIP_BOUNDTYPE_LOWER, SCIP_CALL, SCIP_EVENTTYPE_LBRELAXED, SCIP_EVENTTYPE_LBTIGHTENED, SCIP_EVENTTYPE_UBRELAXED, SCIP_EVENTTYPE_UBTIGHTENED, SCIP_OKAY, and SCIPcatchVarEvent().

Referenced by SCIP_DECL_CONSACTIVE(), switchWatchedvars(), and unlockRounding().

dropEvents()

static SCIP_RETCODE dropEvents ( SCIP *  scip, SCIP_CONS *  cons, SCIP_CONSDATA *  consdata, SCIP_EVENTHDLR *  eventhdlr, int  pos, int  filterpos  )

static

drops the events on a single variable of the bound disjunction constraint

Parameters

scip	SCIP data structure
cons	bound disjunction constraint
consdata	bound disjunction constraint data
eventhdlr	event handler to call for the event processing
pos	position of the variable in the constraint
filterpos	position of event filter entry returned by SCIPcatchVarEvent(), or -1

Definition at line 249 of file cons_bounddisjunction.c.

References conshdlrdataCreate(), NULL, SCIP_BOUNDTYPE_LOWER, SCIP_CALL, SCIP_EVENTTYPE_LBRELAXED, SCIP_EVENTTYPE_LBTIGHTENED, SCIP_EVENTTYPE_UBRELAXED, SCIP_EVENTTYPE_UBTIGHTENED, SCIP_OKAY, and SCIPdropVarEvent().

Referenced by catchEvents(), SCIP_DECL_CONSDEACTIVE(), and switchWatchedvars().

conshdlrdataCreate()

static SCIP_RETCODE conshdlrdataCreate ( SCIP *  scip, SCIP_CONSHDLRDATA **  conshdlrdata, SCIP_EVENTHDLR *  eventhdlr  )

static

creates constraint handler data for bound disjunction constraint handler

Parameters

scip	SCIP data structure
conshdlrdata	pointer to store the constraint handler data
eventhdlr	event handler

Definition at line 277 of file cons_bounddisjunction.c.

References conshdlrdataFree(), NULL, SCIP_CALL, SCIP_OKAY, and SCIPallocBlockMemory.

Referenced by dropEvents(), and SCIPincludeConshdlrBounddisjunction().

conshdlrdataFree()

static void conshdlrdataFree ( SCIP *  scip, SCIP_CONSHDLRDATA **  conshdlrdata  )

static

frees constraint handler data for bound disjunction constraint handler

Parameters

scip	SCIP data structure
conshdlrdata	pointer to the constraint handler data

Definition at line 297 of file cons_bounddisjunction.c.

References consdataCreate(), NULL, and SCIPfreeBlockMemory.

Referenced by conshdlrdataCreate(), and SCIP_DECL_CONSFREE().

consdataCreate()

static SCIP_RETCODE consdataCreate ( SCIP *  scip, SCIP_CONSDATA **  consdata, int  nvars, SCIP_VAR **  vars, SCIP_BOUNDTYPE *  boundtypes, SCIP_Real *  bounds  )

static

creates a bound disjunction constraint data object

Parameters

scip	SCIP data structure
consdata	pointer to store the bound disjunction constraint data
nvars	number of variables in the constraint
vars	variables of the literals in the constraint
boundtypes	types of bounds of the literals (lower or upper bounds)
bounds	bounds of the literals

Definition at line 310 of file cons_bounddisjunction.c.

References bound, consdataFree(), FALSE, isFeasGE, isFeasLE, NULL, SCIP_Bool, SCIP_BOUNDTYPE_LOWER, SCIP_BOUNDTYPE_UPPER, SCIP_CALL, SCIP_OKAY, SCIP_Real, SCIPallocBlockMemory, SCIPallocBufferArray, SCIPduplicateBlockMemoryArray, SCIPfreeBufferArray, SCIPgetTransformedVars(), SCIPisConsCompressionEnabled(), SCIPisEQ(), SCIPisTransformed(), SCIPvarGetLbGlobal(), SCIPvarGetLbLocal(), SCIPvarGetUbGlobal(), SCIPvarGetUbLocal(), and TRUE.

Referenced by conshdlrdataFree(), SCIP_DECL_CONSTRANS(), and SCIPcreateConsBounddisjunction().

consdataFree()

static void consdataFree ( SCIP *  scip, SCIP_CONSDATA **  consdata  )

static

frees a bound disjunction constraint data

Parameters

scip	SCIP data structure
consdata	pointer to the bound disjunction constraint

Definition at line 440 of file cons_bounddisjunction.c.

References consdataPrint(), NULL, SCIPfreeBlockMemory, and SCIPfreeBlockMemoryArrayNull.

Referenced by consdataCreate(), and SCIP_DECL_CONSDELETE().

consdataPrint()

static void consdataPrint ( SCIP *  scip, SCIP_CONSDATA *  consdata, FILE *  file, SCIP_Bool  endline  )

static

prints bound disjunction constraint to file stream

Parameters

scip	SCIP data structure
consdata	bound disjunction constraint data
file	output file (or NULL for standard output)
endline	should an endline be set?

Definition at line 456 of file cons_bounddisjunction.c.

References NULL, SCIP_BOUNDTYPE_LOWER, SCIPinfoMessage(), SCIPvarGetName(), and switchWatchedvars().

Referenced by applyGlobalBounds(), consdataFree(), SCIP_DECL_CONSACTIVE(), SCIP_DECL_CONSDEACTIVE(), and SCIP_DECL_CONSPRINT().

switchWatchedvars()

static SCIP_RETCODE switchWatchedvars ( SCIP *  scip, SCIP_CONS *  cons, SCIP_EVENTHDLR *  eventhdlr, int  watchedvar1, int  watchedvar2  )

static

stores the given variable numbers as watched variables, and updates the event processing

Parameters

scip	SCIP data structure
cons	bound disjunction constraint
eventhdlr	event handler to call for the event processing
watchedvar1	new first watched variable
watchedvar2	new second watched variable

Definition at line 485 of file cons_bounddisjunction.c.

References catchEvents(), dropEvents(), isOverlapping(), NULL, SCIP_Bool, SCIP_CALL, SCIP_OKAY, SCIPconsGetData(), and SCIPconsIsActive().

Referenced by addCoef(), consdataPrint(), delCoefPos(), and processWatchedVars().

isOverlapping()

static SCIP_Bool isOverlapping ( SCIP *  scip, SCIP_VAR *  var, SCIP_BOUNDTYPE  boundtype1, SCIP_Real  bound1, SCIP_BOUNDTYPE  boundtype2, SCIP_Real  bound2  )

static

check whether two intervals overlap

Definition at line 554 of file cons_bounddisjunction.c.

References delCoefPos(), FALSE, SCIP_Bool, SCIP_BOUNDTYPE_LOWER, SCIP_BOUNDTYPE_UPPER, SCIP_Real, SCIPisLE(), SCIPvarIsIntegral(), and TRUE.

Referenced by addCoef(), SCIP_DECL_CONFLICTEXEC(), SCIPcreateConsBounddisjunction(), and switchWatchedvars().

delCoefPos()

static SCIP_RETCODE delCoefPos ( SCIP *  scip, SCIP_CONS *  cons, SCIP_EVENTHDLR *  eventhdlr, int  pos  )

static

deletes coefficient at given position from bound disjunction constraint data

Parameters

scip	SCIP data structure
cons	bound disjunction constraint
eventhdlr	event handler to call for the event processing
pos	position of coefficient to delete

Definition at line 585 of file cons_bounddisjunction.c.

References addCoef(), NULL, SCIP_CALL, SCIP_OKAY, SCIPconsGetData(), SCIPconsIsTransformed(), SCIPenableConsPropagation(), SCIPvarIsTransformed(), switchWatchedvars(), and unlockRounding().

Referenced by applyGlobalBounds(), isOverlapping(), and removeFixedVariables().

addCoef()

static SCIP_RETCODE addCoef ( SCIP *  scip, SCIP_CONS *  cons, SCIP_EVENTHDLR *  eventhdlr, SCIP_VAR *  var, SCIP_BOUNDTYPE  boundtype, SCIP_Real  bound, SCIP_Bool *  redundant  )

static

adds literal to bound disjunction constraint data

Parameters

scip	SCIP data structure
cons	bound disjunction constraint
eventhdlr	event handler to call for the event processing
var	variable in literal
boundtype	boundtype of literal
bound	bound of literal
redundant	flag to indicate whether constraint has been bound redundant

Definition at line 638 of file cons_bounddisjunction.c.

References applyGlobalBounds(), bound, isOverlapping(), lockRounding(), NULL, REALABS, SCIP_BOUNDTYPE_LOWER, SCIP_BOUNDTYPE_UPPER, SCIP_CALL, SCIP_OKAY, SCIPcalcMemGrowSize(), SCIPconsGetData(), SCIPconsGetName(), SCIPconsIsTransformed(), SCIPdebugMsg, SCIPenableConsPropagation(), SCIPisGT(), SCIPisInfinity(), SCIPisLT(), SCIPreallocBlockMemoryArray, SCIPvarGetName(), SCIPvarIsTransformed(), switchWatchedvars(), and TRUE.

Referenced by delCoefPos(), and removeFixedVariables().

applyGlobalBounds()

static SCIP_RETCODE applyGlobalBounds ( SCIP *  scip, SCIP_CONS *  cons, SCIP_EVENTHDLR *  eventhdlr, SCIP_Bool *  redundant  )

static

deletes all variables with global bounds violating the literal, checks for global bounds satisfying the literal

Parameters

scip	SCIP data structure
cons	bound disjunction constraint
eventhdlr	event handler to call for the event processing
redundant	returns whether a variable fixed to one exists in the constraint

Definition at line 743 of file cons_bounddisjunction.c.

References consdataPrint(), delCoefPos(), FALSE, isFeasGE, isFeasGT, isFeasLE, isFeasLT, isLiteralSatisfied(), NULL, SCIP_Bool, SCIP_BOUNDTYPE_LOWER, SCIP_BOUNDTYPE_UPPER, SCIP_CALL, SCIP_OKAY, SCIP_Real, SCIPcomputeVarLbGlobal(), SCIPcomputeVarUbGlobal(), SCIPconsGetData(), SCIPdebug, SCIPdebugMsg, and TRUE.

Referenced by addCoef(), SCIP_DECL_CONSEXITPRE(), and SCIP_DECL_CONSPRESOL().

isLiteralSatisfied()

static SCIP_Bool isLiteralSatisfied ( SCIP *  scip, SCIP_CONSDATA *  consdata, int  pos  )

static

returns whether literal at the given position is satisfied in the local bounds

Parameters

scip	SCIP data structure
consdata	bound disjunction constraint data
pos	position of the literal

Definition at line 818 of file cons_bounddisjunction.c.

References isFeasGE, isFeasLE, isLiteralViolated(), NULL, SCIP_Bool, SCIP_BOUNDTYPE_LOWER, SCIP_Real, SCIPcomputeVarLbLocal(), and SCIPcomputeVarUbLocal().

Referenced by applyGlobalBounds(), createNAryBranch(), processWatchedVars(), registerBranchingCandidates(), removeFixedVariables(), and SCIP_DECL_CONSPRESOL().

isLiteralViolated()

static SCIP_Bool isLiteralViolated ( SCIP *  scip, SCIP_CONSDATA *  consdata, int  pos  )

static

returns whether literal at the given position is violated in the local bounds

Parameters

scip	SCIP data structure
consdata	bound disjunction constraint data
pos	position of the literal

Definition at line 843 of file cons_bounddisjunction.c.

References isFeasGT, isFeasLT, NULL, removeFixedVariables(), SCIP_BOUNDTYPE_LOWER, SCIP_Real, SCIPcomputeVarLbLocal(), and SCIPcomputeVarUbLocal().

Referenced by isLiteralSatisfied(), processWatchedVars(), removeFixedVariables(), and SCIP_DECL_CONSPRESOL().

removeFixedVariables()

static SCIP_RETCODE removeFixedVariables ( SCIP *  scip, SCIP_CONS *  cons, SCIP_EVENTHDLR *  eventhdlr, SCIP_Bool *  redundant  )

static

replace variables by their representative active (or multi-aggregated) variables

Parameters

scip	SCIP data structure
cons	bound disjunction constraint
eventhdlr	event handler
redundant	flag to indicate whether constraint has been bound redundant

Definition at line 868 of file cons_bounddisjunction.c.

References addCoef(), bound, delCoefPos(), isFeasGE, isFeasLE, isLiteralSatisfied(), isLiteralViolated(), NULL, SCIP_BOUNDTYPE_LOWER, SCIP_BOUNDTYPE_UPPER, SCIP_CALL, SCIP_OKAY, SCIP_Real, SCIP_VARSTATUS_FIXED, SCIP_VARSTATUS_MULTAGGR, SCIPconsGetData(), SCIPconsGetName(), SCIPdebugMsg, SCIPvarGetLbGlobal(), SCIPvarGetName(), SCIPvarGetProbvarBound(), SCIPvarGetStatus(), SCIPvarGetUbGlobal(), SCIPvarIsActive(), TRUE, and upgradeCons().

Referenced by isLiteralViolated(), SCIP_DECL_CONSEXITPRE(), and SCIP_DECL_CONSPRESOL().

upgradeCons()

static SCIP_RETCODE upgradeCons ( SCIP *  scip, SCIP_CONS *  cons, int *  ndelconss, int *  naddconss  )

static

try to upgrade the bounddisjunction constraint

if only binary variables are left, we can upgrade a bounddisjunction to a logicor constraint(, if only two variables are left, this logicor constraint can be formulated as set-packing constraint as well)

e.g.: bounddisjunction( x1 >= 1, x2 <= 0; x3 >= 1; x4 <= 0 ) => x1 + ~x2 + x3 + ~x4 >= 1

Parameters

scip	SCIP data structure
cons	bound disjunction constraint that detected the conflict
ndelconss	pointer to store the number of delete constraint
naddconss	pointer to store the number of added constraint

Definition at line 960 of file cons_bounddisjunction.c.

References analyzeConflict(), FALSE, NULL, SCIP_Bool, SCIP_BOUNDTYPE_LOWER, SCIP_BOUNDTYPE_UPPER, SCIP_CALL, SCIP_OKAY, SCIPaddCons(), SCIPallocBufferArray, SCIPconsGetData(), SCIPconsGetName(), SCIPconsIsChecked(), SCIPconsIsDynamic(), SCIPconsIsEnforced(), SCIPconsIsInitial(), SCIPconsIsLocal(), SCIPconsIsModifiable(), SCIPconsIsPropagated(), SCIPconsIsRemovable(), SCIPconsIsSeparated(), SCIPconsIsStickingAtNode(), SCIPcreateConsLogicor(), SCIPcreateConsSetpack(), SCIPdebugMsg, SCIPdebugPrintCons, SCIPdelCons(), SCIPfreeBufferArray, SCIPgetNegatedVar(), SCIPisFeasGT(), SCIPisFeasLT(), SCIPreleaseCons(), SCIPvarIsBinary(), and TRUE.

Referenced by removeFixedVariables(), and SCIP_DECL_CONSPRESOL().

analyzeConflict()

static SCIP_RETCODE analyzeConflict ( SCIP *  scip, SCIP_CONS *  cons  )

static

analyzes conflicting assignment on given constraint, and adds conflict constraint to problem

Parameters

scip	SCIP data structure
cons	bound disjunction constraint that detected the conflict

Definition at line 1064 of file cons_bounddisjunction.c.

References disableCons(), FALSE, NULL, SCIP_CALL, SCIP_CONFTYPE_PROPAGATION, SCIP_OKAY, SCIP_STAGE_SOLVING, SCIPaddConflictBd(), SCIPanalyzeConflictCons(), SCIPboundtypeOpposite(), SCIPconsGetData(), SCIPgetStage(), SCIPinitConflictAnalysis(), SCIPinProbing(), and SCIPisConflictAnalysisApplicable().

Referenced by processWatchedVars(), and upgradeCons().

disableCons()

static SCIP_RETCODE disableCons ( SCIP *  scip, SCIP_CONS *  cons  )

static

disables or deletes the given constraint, depending on the current depth

Parameters

scip	SCIP data structure
cons	bound disjunction constraint to be disabled

Definition at line 1096 of file cons_bounddisjunction.c.

References processWatchedVars(), SCIP_CALL, SCIP_OKAY, SCIPconsGetValidDepth(), SCIPdelCons(), SCIPdisableCons(), and SCIPgetDepth().

Referenced by analyzeConflict(), and processWatchedVars().

processWatchedVars()

static SCIP_RETCODE processWatchedVars ( SCIP *  scip, SCIP_CONS *  cons, SCIP_EVENTHDLR *  eventhdlr, SCIP_Bool *  cutoff, SCIP_Bool *  infeasible, SCIP_Bool *  reduceddom, SCIP_Bool *  mustcheck  )

static

checks constraint for violation only looking at the watched variables, applies bound changes if possible

Parameters

scip	SCIP data structure
cons	bound disjunction constraint to be processed
eventhdlr	event handler to call for the event processing
cutoff	pointer to store TRUE, if the node can be cut off
infeasible	pointer to store TRUE, if the constraint is infeasible in current bounds
reduceddom	pointer to store TRUE, if a domain reduction was found
mustcheck	pointer to store whether this constraint must be checked for feasibility

Definition at line 1117 of file cons_bounddisjunction.c.

References AGEINCREASE, analyzeConflict(), CONSHDLR_NAME, disableCons(), FALSE, isConsViolated(), isLiteralSatisfied(), isLiteralViolated(), NULL, SCIP_Bool, SCIP_BOUNDTYPE_LOWER, SCIP_BRANCHDIR_DOWNWARDS, SCIP_BRANCHDIR_UPWARDS, SCIP_CALL, SCIP_Longint, SCIP_LONGINT_MAX, SCIP_OKAY, SCIP_Real, SCIP_VARSTATUS_MULTAGGR, SCIPaddConsAge(), SCIPconsGetData(), SCIPconsGetHdlr(), SCIPconsGetName(), SCIPconshdlrGetName(), SCIPconsIsModifiable(), SCIPdebugMsg, SCIPdisableConsPropagation(), SCIPgetDepth(), SCIPinferVarLbCons(), SCIPinferVarUbCons(), SCIPresetConsAge(), SCIPvarGetName(), SCIPvarGetNBranchingsCurrentRun(), SCIPvarGetProbvar(), SCIPvarGetStatus(), switchWatchedvars(), and TRUE.

Referenced by disableCons(), enforceCurrentSol(), and SCIP_DECL_CONSPROP().

isConsViolated()

static SCIP_Bool isConsViolated ( SCIP *  scip, SCIP_CONS *  cons, SCIP_SOL *  sol  )

static

checks constraint for violation, returns TRUE iff constraint is violated

Parameters

scip	SCIP data structure
cons	bound disjunction constraint to be checked
sol	primal CIP solution

Definition at line 1370 of file cons_bounddisjunction.c.

References FALSE, isFeasGE, isFeasLE, NULL, registerBranchingCandidates(), SCIP_BOUNDTYPE_LOWER, SCIP_BOUNDTYPE_UPPER, SCIP_Real, SCIP_REAL_MAX, SCIPconsGetData(), SCIPgetSolVal(), SCIPrelDiff(), SCIPupdateSolConsViolation(), and TRUE.

Referenced by enforceCurrentSol(), processWatchedVars(), and SCIP_DECL_CONSCHECK().

registerBranchingCandidates()

static SCIP_RETCODE registerBranchingCandidates ( SCIP *  scip, SCIP_CONS *  cons, SCIP_SOL *  sol, SCIP_Bool *  neednarybranch  )

static

Parameters

scip	SCIP data structure
cons	bound disjunction constraint which variables should be registered for branching
sol	solution (NULL for LP solution)
neednarybranch	pointer to store TRUE, if n-ary branching is necessary to enforce this constraint

Definition at line 1441 of file cons_bounddisjunction.c.

References CONSHDLR_NAME, enforceCurrentSol(), FALSE, isFeasGT, isFeasLT, isLiteralSatisfied(), NULL, REALABS, SCIP_BOUNDTYPE_LOWER, SCIP_BOUNDTYPE_UPPER, SCIP_CALL, SCIP_OKAY, SCIP_Real, SCIP_VARTYPE_CONTINUOUS, SCIPaddExternBranchCand(), SCIPcomputeVarLbLocal(), SCIPcomputeVarUbLocal(), SCIPconsGetData(), SCIPconsGetHdlr(), SCIPconshdlrGetName(), SCIPgetSolVal(), SCIPisFeasEQ(), SCIPisFeasGE(), SCIPisFeasLE(), SCIPisInfinity(), SCIPvarGetType(), and TRUE.

Referenced by enforceCurrentSol(), and isConsViolated().

enforceCurrentSol()

static SCIP_RETCODE enforceCurrentSol ( SCIP *  scip, SCIP_CONS *  cons, SCIP_SOL *  sol, SCIP_EVENTHDLR *  eventhdlr, SCIP_Bool *  cutoff, SCIP_Bool *  infeasible, SCIP_Bool *  reduceddom, SCIP_Bool *  registeredbrcand  )

static

enforces the pseudo or LP solution on the given constraint

Parameters

scip	SCIP data structure
cons	bound disjunction constraint to be separated
sol	solution which should be enforced (NULL for LP solution)
eventhdlr	event handler to call for the event processing
cutoff	pointer to store TRUE, if the node can be cut off
infeasible	pointer to store TRUE, if the constraint was infeasible
reduceddom	pointer to store TRUE, if a domain reduction was found
registeredbrcand	pointer to store TRUE, if branching variable candidates were registered or was already true

Definition at line 1524 of file cons_bounddisjunction.c.

References CONSHDLR_NAME, createNAryBranch(), isConsViolated(), NULL, processWatchedVars(), registerBranchingCandidates(), SCIP_Bool, SCIP_CALL, SCIP_OKAY, SCIPconsGetHdlr(), SCIPconsGetName(), SCIPconshdlrGetName(), SCIPconsIsPropagationEnabled(), SCIPdebugMsg, SCIPresetConsAge(), and TRUE.

Referenced by enforceConstraint(), registerBranchingCandidates(), and SCIP_DECL_CONSENFOPS().

createNAryBranch()

static SCIP_RETCODE createNAryBranch ( SCIP *  scip, SCIP_CONS *  cons, SCIP_SOL *  sol  )

static

enforces a constraint by creating an n-ary branch consisting of a set of child nodes, each enforcing one literal

Parameters

scip	SCIP data structure
cons	bound disjunction constraint to branch on
sol	solution which should be enforced (NULL for LP solution)

Definition at line 1578 of file cons_bounddisjunction.c.

References CONSHDLR_NAME, enforceConstraint(), isFeasGE, isFeasGT, isFeasLE, isFeasLT, isLiteralSatisfied(), NULL, SCIP_BOUNDTYPE_LOWER, SCIP_BOUNDTYPE_UPPER, SCIP_BRANCHDIR_DOWNWARDS, SCIP_BRANCHDIR_UPWARDS, SCIP_CALL, SCIP_OKAY, SCIP_Real, SCIP_VARSTATUS_MULTAGGR, SCIPaddConsNode(), SCIPcalcChildEstimate(), SCIPcalcNodeselPriority(), SCIPchgVarLbNode(), SCIPchgVarUbNode(), SCIPcomputeVarLbLocal(), SCIPcomputeVarUbLocal(), SCIPconsGetData(), SCIPconsGetHdlr(), SCIPconshdlrGetName(), SCIPconsIsChecked(), SCIPconsIsDynamic(), SCIPconsIsEnforced(), SCIPconsIsInitial(), SCIPconsIsLocal(), SCIPconsIsModifiable(), SCIPconsIsPropagated(), SCIPconsIsRemovable(), SCIPconsIsSeparated(), SCIPconsIsStickingAtNode(), SCIPcreateChild(), SCIPcreateConsLinear(), SCIPdebugMsg, SCIPdelConsNode(), SCIPgetSolVal(), SCIPinfinity(), SCIPreleaseCons(), SCIPvarGetName(), SCIPvarGetStatus(), and SCIPvarIsActive().

Referenced by enforceConstraint(), enforceCurrentSol(), and SCIP_DECL_CONSENFOPS().

enforceConstraint()

static SCIP_RETCODE enforceConstraint ( SCIP *  scip, SCIP_CONSHDLR *  conshdlr, SCIP_CONS **  conss, int  nconss, SCIP_SOL *  sol, SCIP_RESULT *  result  )

static

helper function to enforce constraints

Parameters

scip	SCIP data structure
conshdlr	constraint handler
conss	constraints to process
nconss	number of constraints
sol	solution to enforce (NULL for the LP solution)
result	pointer to store the result of the enforcing call

Definition at line 1698 of file cons_bounddisjunction.c.

References CONSHDLR_NAME, createNAryBranch(), enforceCurrentSol(), FALSE, NULL, SCIP_Bool, SCIP_BRANCHED, SCIP_CALL, SCIP_CUTOFF, SCIP_DECL_QUADCONSUPGD(), SCIP_FEASIBLE, SCIP_INFEASIBLE, SCIP_OKAY, SCIP_REDUCEDDOM, SCIPconsGetData(), SCIPconshdlrGetData(), SCIPconshdlrGetName(), and SCIPdebugMsg.

Referenced by createNAryBranch(), SCIP_DECL_CONSENFOLP(), and SCIP_DECL_CONSENFORELAX().

SCIP_DECL_QUADCONSUPGD()

static SCIP_DECL_QUADCONSUPGD ( upgradeConsQuadratic  )

static

upgrades quadratic complementarity constraints into a bounddisjunction constraint If constraint is of form (x - a) * (y - b) = 0 with x >= a and y >= b for some a and b, then upgrade to bounddisjunction constraint "x <= a or y <= b". If constraint is of form (x - a) * (y - b) >= 0, then upgrade to bounddisjunction constraints "x >= a or y <= b" and "x <= a or y >= b".

Definition at line 1789 of file cons_bounddisjunction.c.

References a, b, SCIP_BilinTerm::coef, SCIP_QuadVarTerm::lincoef, NULL, SCIP_BOUNDTYPE_LOWER, SCIP_BOUNDTYPE_UPPER, SCIP_CALL, SCIP_DECL_CONSHDLRCOPY(), SCIP_MAXSTRLEN, SCIP_OKAY, SCIP_Real, SCIPconsGetName(), SCIPconsIsChecked(), SCIPconsIsDynamic(), SCIPconsIsEnforced(), SCIPconsIsInitial(), SCIPconsIsLocal(), SCIPconsIsModifiable(), SCIPconsIsPropagated(), SCIPconsIsRemovable(), SCIPconsIsSeparated(), SCIPconsIsStickingAtNode(), SCIPcreateConsBounddisjunction(), SCIPdebugMsg, SCIPdebugPrintCons, SCIPgetBilinTermsQuadratic(), SCIPgetLhsQuadratic(), SCIPgetNBilinTermsQuadratic(), SCIPgetNLinearVarsQuadratic(), SCIPgetNQuadVarTermsQuadratic(), SCIPgetQuadVarTermsQuadratic(), SCIPgetRhsQuadratic(), SCIPinfinity(), SCIPisEQ(), SCIPisGE(), SCIPisInfinity(), SCIPisLE(), SCIPisZero(), SCIPsnprintf(), SCIPvarGetLbGlobal(), SCIPvarGetUbGlobal(), SCIP_QuadVarTerm::var, x, and y.

Referenced by enforceConstraint().

SCIP_DECL_CONSHDLRCOPY()

static SCIP_DECL_CONSHDLRCOPY ( conshdlrCopyBounddisjunction  )

static

copy method for constraint handler plugins (called when SCIP copies plugins)

Definition at line 2190 of file cons_bounddisjunction.c.

References CONSHDLR_NAME, NULL, SCIP_CALL, SCIP_DECL_CONSFREE(), SCIP_OKAY, SCIPconshdlrGetName(), SCIPincludeConshdlrBounddisjunction(), and TRUE.

Referenced by SCIP_DECL_QUADCONSUPGD().

SCIP_DECL_CONSFREE()

static SCIP_DECL_CONSFREE ( consFreeBounddisjunction  )

static

destructor of constraint handler to free constraint handler data (called when SCIP is exiting)

Definition at line 2206 of file cons_bounddisjunction.c.

References CONSHDLR_NAME, conshdlrdataFree(), NULL, SCIP_DECL_CONSEXITPRE(), SCIP_OKAY, SCIPconshdlrGetData(), SCIPconshdlrGetName(), and SCIPconshdlrSetData().

Referenced by SCIP_DECL_CONSHDLRCOPY().

SCIP_DECL_CONSEXITPRE()

static SCIP_DECL_CONSEXITPRE ( consExitpreBounddisjunction  )

static

presolving deinitialization method of constraint handler (called after presolving has been finished)

Definition at line 2228 of file cons_bounddisjunction.c.

References applyGlobalBounds(), CONSHDLR_NAME, NULL, removeFixedVariables(), SCIP_Bool, SCIP_CALL, SCIP_DECL_CONSDELETE(), SCIP_OKAY, SCIPconsGetName(), SCIPconshdlrGetData(), SCIPconshdlrGetName(), SCIPconsIsAdded(), SCIPconsIsDeleted(), SCIPdebugMsg, and SCIPdelCons().

Referenced by SCIP_DECL_CONSFREE().

SCIP_DECL_CONSDELETE()

static SCIP_DECL_CONSDELETE ( consDeleteBounddisjunction  )

static

frees specific constraint data

Definition at line 2275 of file cons_bounddisjunction.c.

References consdataFree(), CONSHDLR_NAME, NULL, SCIP_DECL_CONSTRANS(), SCIP_OKAY, and SCIPconshdlrGetName().

Referenced by SCIP_DECL_CONSEXITPRE().

SCIP_DECL_CONSTRANS()

static SCIP_DECL_CONSTRANS ( consTransBounddisjunction  )

static

transforms constraint data into data belonging to the transformed problem

Definition at line 2291 of file cons_bounddisjunction.c.

References consdataCreate(), CONSHDLR_NAME, NULL, SCIP_CALL, SCIP_DECL_CONSENFOLP(), SCIP_OKAY, SCIP_STAGE_TRANSFORMING, SCIPconsGetData(), SCIPconsGetName(), SCIPconshdlrGetName(), SCIPconsIsChecked(), SCIPconsIsDynamic(), SCIPconsIsEnforced(), SCIPconsIsInitial(), SCIPconsIsLocal(), SCIPconsIsModifiable(), SCIPconsIsPropagated(), SCIPconsIsRemovable(), SCIPconsIsSeparated(), SCIPconsIsStickingAtNode(), SCIPcreateCons(), and SCIPgetStage().

Referenced by SCIP_DECL_CONSDELETE().

SCIP_DECL_CONSENFOLP()

static SCIP_DECL_CONSENFOLP ( consEnfolpBounddisjunction  )

static

constraint enforcing method of constraint handler for LP solutions

Definition at line 2324 of file cons_bounddisjunction.c.

References enforceConstraint(), NULL, SCIP_CALL, SCIP_DECL_CONSENFORELAX(), and SCIP_OKAY.

Referenced by SCIP_DECL_CONSTRANS().

SCIP_DECL_CONSENFORELAX()

static SCIP_DECL_CONSENFORELAX ( consEnforelaxBounddisjunction  )

static

constraint enforcing method of constraint handler for relaxation solutions

Definition at line 2334 of file cons_bounddisjunction.c.

References enforceConstraint(), SCIP_CALL, SCIP_DECL_CONSENFOPS(), and SCIP_OKAY.

Referenced by SCIP_DECL_CONSENFOLP().

SCIP_DECL_CONSENFOPS()

static SCIP_DECL_CONSENFOPS ( consEnfopsBounddisjunction  )

static

constraint enforcing method of constraint handler for pseudo solutions

Definition at line 2344 of file cons_bounddisjunction.c.

References CONSHDLR_NAME, createNAryBranch(), enforceCurrentSol(), FALSE, NULL, SCIP_Bool, SCIP_BRANCHED, SCIP_CALL, SCIP_CUTOFF, SCIP_DECL_CONSCHECK(), SCIP_FEASIBLE, SCIP_INFEASIBLE, SCIP_OKAY, SCIP_REDUCEDDOM, SCIPconsGetData(), SCIPconshdlrGetData(), SCIPconshdlrGetName(), and SCIPdebugMsg.

Referenced by SCIP_DECL_CONSENFORELAX().

SCIP_DECL_CONSCHECK()

static SCIP_DECL_CONSCHECK ( consCheckBounddisjunction  )

static

feasibility check method of constraint handler for integral solutions

Definition at line 2408 of file cons_bounddisjunction.c.

References CONSHDLR_NAME, isConsViolated(), NULL, SCIP_CALL, SCIP_DECL_CONSPROP(), SCIP_FEASIBLE, SCIP_INFEASIBLE, SCIP_OKAY, SCIPconsGetData(), SCIPconshdlrGetName(), SCIPgetSolVal(), SCIPinfoMessage(), SCIPprintCons(), and SCIPvarGetName().

Referenced by SCIP_DECL_CONSENFOPS().

SCIP_DECL_CONSPROP()

static SCIP_DECL_CONSPROP ( consPropBounddisjunction  )

static

domain propagation method of constraint handler

Definition at line 2458 of file cons_bounddisjunction.c.

References CONSHDLR_NAME, FALSE, NULL, processWatchedVars(), SCIP_Bool, SCIP_CALL, SCIP_CUTOFF, SCIP_DECL_CONSPRESOL(), SCIP_DIDNOTFIND, SCIP_OKAY, SCIP_REDUCEDDOM, SCIPconshdlrGetData(), and SCIPconshdlrGetName().

Referenced by SCIP_DECL_CONSCHECK().

SCIP_DECL_CONSPRESOL()

static SCIP_DECL_CONSPRESOL ( consPresolBounddisjunction  )

static

presolving method of constraint handler

Definition at line 2502 of file cons_bounddisjunction.c.

References applyGlobalBounds(), CONSHDLR_NAME, isLiteralSatisfied(), isLiteralViolated(), NULL, removeFixedVariables(), SCIP_Bool, SCIP_BOUNDTYPE_LOWER, SCIP_CALL, SCIP_CUTOFF, SCIP_DECL_CONSRESPROP(), SCIP_DIDNOTFIND, SCIP_OKAY, SCIP_Real, SCIP_SUCCESS, SCIP_VARSTATUS_MULTAGGR, SCIPaddCons(), SCIPconsGetData(), SCIPconsGetName(), SCIPconshdlrGetData(), SCIPconshdlrGetName(), SCIPconsIsChecked(), SCIPconsIsDynamic(), SCIPconsIsEnforced(), SCIPconsIsInitial(), SCIPconsIsLocal(), SCIPconsIsModifiable(), SCIPconsIsPropagated(), SCIPconsIsRemovable(), SCIPconsIsSeparated(), SCIPconsIsStickingAtNode(), SCIPcreateConsLinear(), SCIPdebugMsg, SCIPdelCons(), SCIPenableConsPropagation(), SCIPinfinity(), SCIPisStopped(), SCIPreleaseCons(), SCIPtightenVarLb(), SCIPtightenVarUb(), SCIPvarGetStatus(), SCIPvarIsActive(), TRUE, and upgradeCons().

Referenced by SCIP_DECL_CONSPROP().

SCIP_DECL_CONSRESPROP()

static SCIP_DECL_CONSRESPROP ( consRespropBounddisjunction  )

static

propagation conflict resolving method of constraint handler

Definition at line 2650 of file cons_bounddisjunction.c.

References CONSHDLR_NAME, NULL, SCIP_BOUNDTYPE_LOWER, SCIP_BOUNDTYPE_UPPER, SCIP_CALL, SCIP_DECL_CONSLOCK(), SCIP_OKAY, SCIP_Real, SCIP_SUCCESS, SCIP_VARSTATUS_MULTAGGR, SCIPaddConflictBd(), SCIPboundtypeOpposite(), SCIPconsGetData(), SCIPconshdlrGetName(), SCIPdebugMsg, SCIPgetVarLbAtIndex(), SCIPgetVarUbAtIndex(), SCIPisFeasGE(), SCIPisFeasLE(), SCIPisGT(), SCIPisLT(), SCIPvarGetStatus(), and TRUE.

Referenced by SCIP_DECL_CONSPRESOL().

SCIP_DECL_CONSLOCK()

static SCIP_DECL_CONSLOCK ( consLockBounddisjunction  )

static

variable rounding lock method of constraint handler

Definition at line 2718 of file cons_bounddisjunction.c.

References NULL, SCIP_BOUNDTYPE_LOWER, SCIP_CALL, SCIP_DECL_CONSACTIVE(), SCIP_OKAY, SCIPaddVarLocksType(), and SCIPconsGetData().

Referenced by SCIP_DECL_CONSRESPROP().

SCIP_DECL_CONSACTIVE()

static SCIP_DECL_CONSACTIVE ( consActiveBounddisjunction  )

static

constraint activation notification method of constraint handler

Definition at line 2745 of file cons_bounddisjunction.c.

References catchEvents(), consdataPrint(), CONSHDLR_NAME, NULL, SCIP_CALL, SCIP_DECL_CONSDEACTIVE(), SCIP_OKAY, SCIPconsGetData(), SCIPconsGetName(), SCIPconshdlrGetData(), SCIPconshdlrGetName(), SCIPconsIsTransformed(), SCIPdebug, SCIPdebugMsg, and TRUE.

Referenced by SCIP_DECL_CONSLOCK().

SCIP_DECL_CONSDEACTIVE()

static SCIP_DECL_CONSDEACTIVE ( consDeactiveBounddisjunction  )

static

constraint deactivation notification method of constraint handler

Definition at line 2782 of file cons_bounddisjunction.c.

References consdataPrint(), CONSHDLR_NAME, dropEvents(), NULL, SCIP_CALL, SCIP_DECL_CONSPRINT(), SCIP_OKAY, SCIPconsGetData(), SCIPconsGetName(), SCIPconshdlrGetData(), SCIPconshdlrGetName(), SCIPconsIsTransformed(), SCIPdebug, SCIPdebugMsg, and TRUE.

Referenced by SCIP_DECL_CONSACTIVE().

SCIP_DECL_CONSPRINT()

static SCIP_DECL_CONSPRINT ( consPrintBounddisjunction  )

static

constraint display method of constraint handler

Definition at line 2821 of file cons_bounddisjunction.c.

References consdataPrint(), FALSE, NULL, SCIP_DECL_CONSCOPY(), SCIP_OKAY, and SCIPconsGetData().

Referenced by SCIP_DECL_CONSDEACTIVE().

SCIP_DECL_CONSCOPY()

static SCIP_DECL_CONSCOPY ( consCopyBounddisjunction  )

static

constraint copying method of constraint handler

Definition at line 2834 of file cons_bounddisjunction.c.

References NULL, SCIP_CALL, SCIP_DECL_CONSPARSE(), SCIP_OKAY, SCIP_Real, SCIPallocBufferArray, SCIPconsGetName(), SCIPcreateConsBounddisjunction(), SCIPfreeBufferArray, SCIPgetBoundsBounddisjunction(), SCIPgetBoundtypesBounddisjunction(), SCIPgetNVarsBounddisjunction(), SCIPgetVarCopy(), SCIPgetVarsBounddisjunction(), and TRUE.

Referenced by SCIP_DECL_CONSPRINT().

SCIP_DECL_CONSPARSE()

static SCIP_DECL_CONSPARSE ( consParseBounddisjunction  )

static

constraint parsing method of constraint handler

Definition at line 2876 of file cons_bounddisjunction.c.

References FALSE, NULL, SCIP_BOUNDTYPE_LOWER, SCIP_BOUNDTYPE_UPPER, SCIP_CALL, SCIP_DECL_CONSGETVARS(), SCIP_OKAY, SCIP_Real, SCIP_VERBLEVEL_MINIMAL, SCIPallocBufferArray, SCIPcreateConsBounddisjunction(), SCIPdebugMsg, SCIPfreeBufferArray, SCIPparseVarName(), SCIPreallocBufferArray, SCIPstrToRealValue(), SCIPvarGetName(), SCIPverbMessage(), and TRUE.

Referenced by SCIP_DECL_CONSCOPY().

SCIP_DECL_CONSGETVARS()

static SCIP_DECL_CONSGETVARS ( consGetVarsBounddisjunction  )

static

constraint method of constraint handler which returns the variables (if possible)

Definition at line 3009 of file cons_bounddisjunction.c.

References BMScopyMemoryArray, FALSE, NULL, SCIP_DECL_CONSGETNVARS(), SCIP_OKAY, SCIPconsGetData(), and TRUE.

Referenced by SCIP_DECL_CONSPARSE().

SCIP_DECL_CONSGETNVARS()

static SCIP_DECL_CONSGETNVARS ( consGetNVarsBounddisjunction  )

static

constraint method of constraint handler which returns the number of variables (if possible)

Definition at line 3033 of file cons_bounddisjunction.c.

References NULL, SCIP_DECL_EVENTEXEC(), SCIP_OKAY, SCIPconsGetData(), and TRUE.

Referenced by SCIP_DECL_CONSGETVARS().

SCIP_DECL_EVENTEXEC()

static SCIP_DECL_EVENTEXEC ( eventExecBounddisjunction  )

static

Definition at line 3056 of file cons_bounddisjunction.c.

References EVENTHDLR_NAME, NULL, SCIP_CALL, SCIP_DECL_CONFLICTEXEC(), SCIP_EVENTTYPE_BOUNDRELAXED, SCIP_EVENTTYPE_BOUNDTIGHTENED, SCIP_OKAY, SCIP_Real, SCIPconsGetData(), SCIPconsIsActive(), SCIPconsIsUpdatedeactivate(), SCIPenableCons(), SCIPenableConsPropagation(), SCIPeventGetType(), and SCIPeventhdlrGetName().

Referenced by SCIP_DECL_CONSGETNVARS().

SCIP_DECL_CONFLICTEXEC()

static SCIP_DECL_CONFLICTEXEC ( conflictExecBounddisjunction  )

static

conflict processing method of conflict handler (called when conflict was found)

Definition at line 3095 of file cons_bounddisjunction.c.

References bound, CONFLICTHDLR_NAME, FALSE, isOverlapping(), NULL, SCIP_BOUNDTYPE_LOWER, SCIP_BOUNDTYPE_UPPER, SCIP_CALL, SCIP_CONSADDED, SCIP_DECL_CONFLICTFREE(), SCIP_DIDNOTFIND, SCIP_DIDNOTRUN, SCIP_MAXSTRLEN, SCIP_OKAY, SCIP_Real, SCIPaddConflict(), SCIPallocBufferArray, SCIPbdchginfoGetBoundtype(), SCIPbdchginfoGetNewbound(), SCIPbdchginfoGetVar(), SCIPboundtypeOpposite(), SCIPconflicthdlrGetData(), SCIPconflicthdlrGetName(), SCIPcreateConsBounddisjunction(), SCIPdebugMsg, SCIPfreeBufferArray, SCIPgetNConflictConssApplied(), SCIPgetNRuns(), SCIPisFeasEQ(), SCIPisGE(), SCIPisGT(), SCIPisLE(), SCIPisLT(), SCIPsnprintf(), SCIPvarGetLbGlobal(), SCIPvarGetName(), SCIPvarGetUbGlobal(), SCIPvarIsIntegral(), and TRUE.

Referenced by SCIP_DECL_EVENTEXEC().

SCIP_DECL_CONFLICTFREE()

static SCIP_DECL_CONFLICTFREE ( conflictFreeBounddisjunction  )

static

free method of conflict handler

Definition at line 3237 of file cons_bounddisjunction.c.

References NULL, SCIP_OKAY, SCIPconflicthdlrGetData(), SCIPfreeBlockMemory, and SCIPincludeConshdlrBounddisjunction().

Referenced by SCIP_DECL_CONFLICTEXEC().