Detailed Description

methods to create, read and modify a global problem together with its callbacks

Functions
SCIP_RETCODE	SCIPcreateProb (SCIP scip, const char name, SCIP_DECL_PROBDELORIG((probdelorig)), SCIP_DECL_PROBTRANS((probtrans)), SCIP_DECL_PROBDELTRANS((probdeltrans)), SCIP_DECL_PROBINITSOL((probinitsol)), SCIP_DECL_PROBEXITSOL((probexitsol)), SCIP_DECL_PROBCOPY((probcopy)), SCIP_PROBDATA *probdata)

SCIP_RETCODE	SCIPcreateProbBasic (SCIP scip, const char name)

SCIP_RETCODE	SCIPsetProbDelorig (SCIP scip, SCIP_DECL_PROBDELORIG((probdelorig)))

SCIP_RETCODE	SCIPsetProbTrans (SCIP scip, SCIP_DECL_PROBTRANS((probtrans)))

SCIP_RETCODE	SCIPsetProbDeltrans (SCIP scip, SCIP_DECL_PROBDELTRANS((probdeltrans)))

SCIP_RETCODE	SCIPsetProbInitsol (SCIP scip, SCIP_DECL_PROBINITSOL((probinitsol)))

SCIP_RETCODE	SCIPsetProbExitsol (SCIP scip, SCIP_DECL_PROBEXITSOL((probexitsol)))

SCIP_RETCODE	SCIPsetProbCopy (SCIP scip, SCIP_DECL_PROBCOPY((probcopy)))

SCIP_RETCODE	SCIPreadProb (SCIP scip, const char filename, const char *extension)

SCIP_RETCODE	SCIPwriteOrigProblem (SCIP scip, const char filename, const char *extension, SCIP_Bool genericnames)

SCIP_RETCODE	SCIPwriteTransProblem (SCIP scip, const char filename, const char *extension, SCIP_Bool genericnames)

SCIP_RETCODE	SCIPfreeProb (SCIP *scip)

SCIP_RETCODE	SCIPpermuteProb (SCIP *scip, unsigned int randseed, SCIP_Bool permuteconss, SCIP_Bool permutebinvars, SCIP_Bool permuteintvars, SCIP_Bool permuteimplvars, SCIP_Bool permutecontvars)

SCIP_PROBDATA *	SCIPgetProbData (SCIP *scip)

SCIP_RETCODE	SCIPsetProbData (SCIP scip, SCIP_PROBDATA probdata)

const char *	SCIPgetProbName (SCIP *scip)

SCIP_RETCODE	SCIPsetProbName (SCIP scip, const char name)

SCIP_RETCODE	SCIPchgReoptObjective (SCIP scip, SCIP_OBJSENSE objsense, SCIP_VAR vars, SCIP_Real coefs, int nvars)

SCIP_OBJSENSE	SCIPgetObjsense (SCIP *scip)

SCIP_RETCODE	SCIPsetObjsense (SCIP *scip, SCIP_OBJSENSE objsense)

SCIP_RETCODE	SCIPaddObjoffset (SCIP *scip, SCIP_Real addval)

SCIP_RETCODE	SCIPaddOrigObjoffset (SCIP *scip, SCIP_Real addval)

SCIP_Real	SCIPgetOrigObjoffset (SCIP *scip)

SCIP_Real	SCIPgetOrigObjscale (SCIP *scip)

SCIP_Real	SCIPgetTransObjoffset (SCIP *scip)

SCIP_Real	SCIPgetTransObjscale (SCIP *scip)

SCIP_RETCODE	SCIPsetObjlimit (SCIP *scip, SCIP_Real objlimit)

SCIP_Real	SCIPgetObjlimit (SCIP *scip)

SCIP_RETCODE	SCIPsetObjIntegral (SCIP *scip)

SCIP_Bool	SCIPisObjIntegral (SCIP *scip)

SCIP_Real	SCIPgetObjNorm (SCIP *scip)

SCIP_RETCODE	SCIPaddVar (SCIP scip, SCIP_VAR var)

SCIP_RETCODE	SCIPaddPricedVar (SCIP scip, SCIP_VAR var, SCIP_Real score)

SCIP_RETCODE	SCIPdelVar (SCIP scip, SCIP_VAR var, SCIP_Bool *deleted)

SCIP_RETCODE	SCIPgetVarsData (SCIP scip, SCIP_VAR *vars, int nvars, int nbinvars, int nintvars, int nimplvars, int ncontvars)

SCIP_VAR **	SCIPgetVars (SCIP *scip)

int	SCIPgetNVars (SCIP *scip)

int	SCIPgetNBinVars (SCIP *scip)

int	SCIPgetNIntVars (SCIP *scip)

int	SCIPgetNImplVars (SCIP *scip)

int	SCIPgetNContVars (SCIP *scip)

int	SCIPgetNObjVars (SCIP *scip)

SCIP_VAR **	SCIPgetFixedVars (SCIP *scip)

int	SCIPgetNFixedVars (SCIP *scip)

SCIP_RETCODE	SCIPgetOrigVarsData (SCIP scip, SCIP_VAR *vars, int nvars, int nbinvars, int nintvars, int nimplvars, int ncontvars)

SCIP_VAR **	SCIPgetOrigVars (SCIP *scip)

int	SCIPgetNOrigVars (SCIP *scip)

int	SCIPgetNOrigBinVars (SCIP *scip)

int	SCIPgetNOrigIntVars (SCIP *scip)

int	SCIPgetNOrigImplVars (SCIP *scip)

int	SCIPgetNOrigContVars (SCIP *scip)

int	SCIPgetNTotalVars (SCIP *scip)

SCIP_RETCODE	SCIPgetSolVarsData (SCIP scip, SCIP_SOL sol, SCIP_VAR **vars, int nvars, int nbinvars, int nintvars, int nimplvars, int ncontvars)

SCIP_VAR *	SCIPfindVar (SCIP scip, const char name)

SCIP_Bool	SCIPallVarsInProb (SCIP *scip)

SCIP_RETCODE	SCIPaddCons (SCIP scip, SCIP_CONS cons)

SCIP_RETCODE	SCIPdelCons (SCIP scip, SCIP_CONS cons)

SCIP_CONS *	SCIPfindOrigCons (SCIP scip, const char name)

SCIP_CONS *	SCIPfindCons (SCIP scip, const char name)

int	SCIPgetNUpgrConss (SCIP *scip)

int	SCIPgetNConss (SCIP *scip)

SCIP_CONS **	SCIPgetConss (SCIP *scip)

int	SCIPgetNOrigConss (SCIP *scip)

SCIP_CONS **	SCIPgetOrigConss (SCIP *scip)

int	SCIPgetNCheckConss (SCIP *scip)

Function Documentation

◆ SCIPcreateProb()

SCIP_RETCODE SCIPcreateProb	(	SCIP *	scip,
		const char *	name,
		SCIP_DECL_PROBDELORIG((*probdelorig))	,
		SCIP_DECL_PROBTRANS((*probtrans))	,
		SCIP_DECL_PROBDELTRANS((*probdeltrans))	,
		SCIP_DECL_PROBINITSOL((*probinitsol))	,
		SCIP_DECL_PROBEXITSOL((*probexitsol))	,
		SCIP_DECL_PROBCOPY((*probcopy))	,
		SCIP_PROBDATA *	probdata
	)

creates empty problem and initializes all solving data structures (the objective sense is set to MINIMIZE) If the problem type requires the use of variable pricers, these pricers should be added to the problem with calls to SCIPactivatePricer(). These pricers are automatically deactivated, when the problem is freed.

Returns: SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see SCIP_RETCODE for a complete list of error codes.

Precondition

This method can be called if scip is in one of the following stages:

Postcondition

After calling this method, SCIP reaches the following stage:

SCIP_STAGE_PROBLEM

Parameters

scip	SCIP data structure
name	problem name
probdata	user problem data set by the reader

Definition at line 117 of file scip_prob.c.

References Scip::conflictstore, Scip::decompstore, FALSE, Scip::mem, Scip::messagehdlr, NULL, Scip::origprimal, Scip::origprob, SCIP_Mem::probmem, SCIP_Set::reopt_enable, SCIP_CALL, SCIP_DECOMPSTORE_CAPA, SCIP_OKAY, SCIP_STAGE_INIT, SCIP_STAGE_PROBLEM, SCIPblkmem(), SCIPcheckStage(), SCIPconflictstoreCreate(), SCIPdecompstoreCreate(), SCIPenableReoptimization(), SCIPfreeProb(), SCIPprimalCreate(), SCIPprobCreate(), SCIPstatCreate(), Scip::set, SCIP_Set::stage, Scip::stat, and TRUE.

Referenced by AMPLProblemHandler::AMPLProblemHandler(), applyRepair(), copyToSubscip(), createCoveringProblem(), createSubSCIP(), createSubscip(), execmain(), scipexamples::QueensSolver::QueensSolver(), readFZNFile(), readLPFile(), readMps(), readOPBFile(), readPIPFile(), SCIP_DECL_READERREAD(), SCIPcopyLargeNeighborhoodSearch(), SCIPcreateObjProb(), SCIPcreateProbBasic(), SCIPcreateProbColoring(), SCIPcreateSchedulingProblem(), solveClassification(), and solveMinIISC().

◆ SCIPcreateProbBasic()

SCIP_RETCODE SCIPcreateProbBasic	(	SCIP *	scip,
		const char *	name
	)

creates empty problem and initializes all solving data structures (the objective sense is set to MINIMIZE) all callback methods will be set to NULL and can be set afterwards, if needed, via SCIPsetProbDelorig(), SCIPsetProbTrans(), SCIPsetProbDeltrans(), SCIPsetProbInitsol(), SCIPsetProbExitsol(), and SCIPsetProbCopy() If the problem type requires the use of variable pricers, these pricers should be added to the problem with calls to SCIPactivatePricer(). These pricers are automatically deactivated, when the problem is freed.

Returns: SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see SCIP_RETCODE for a complete list of error codes.

Precondition

This method can be called if scip is in one of the following stages:

Postcondition

After calling this method, SCIP reaches the following stage:

SCIP_STAGE_PROBLEM

Parameters

scip	SCIP data structure
name	problem name

Definition at line 180 of file scip_prob.c.

References FALSE, NULL, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPcreateProb(), and TRUE.

Referenced by addScenarioVarsAndConsToProb(), createMIP(), infinityCountUpdate(), main(), readFile(), SCIP_DECL_PRICERREDCOST(), SCIP_DECL_READERREAD(), SCIP_DECL_SOLVECUMULATIVE(), SCIPbendersApplyDecomposition(), SCIPcreateProbCyc(), SCIPprobdataCreate(), SCIPverifyCircularPatternNLP(), setupAndSolveCumulativeSubscip(), setupProblem(), setupSubscipLpface(), solveClassification(), and solvePricingMINLP().

◆ SCIPsetProbDelorig()

SCIP_RETCODE SCIPsetProbDelorig	(	SCIP *	scip,
		SCIP_DECL_PROBDELORIG((*probdelorig))
	)

sets callback to free user data of original problem

Returns: SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see SCIP_RETCODE for a complete list of error codes.

Precondition

This method can be called if scip is in one of the following stages:

SCIP_STAGE_PROBLEM

Parameters

scip	SCIP data structure

Definition at line 200 of file scip_prob.c.

References FALSE, NULL, Scip::origprob, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPprobSetDelorig(), and TRUE.

Referenced by SCIPcreateProbCyc(), and SCIPprobdataCreate().

◆ SCIPsetProbTrans()

SCIP_RETCODE SCIPsetProbTrans	(	SCIP *	scip,
		SCIP_DECL_PROBTRANS((*probtrans))
	)

sets callback to create user data of transformed problem by transforming original user data

Returns: SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see SCIP_RETCODE for a complete list of error codes.

Precondition

This method can be called if scip is in one of the following stages:

SCIP_STAGE_PROBLEM

Parameters

scip	SCIP data structure

Definition at line 221 of file scip_prob.c.

References FALSE, NULL, Scip::origprob, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPprobSetTrans(), and TRUE.

Referenced by SCIPcreateProbCyc(), and SCIPprobdataCreate().

◆ SCIPsetProbDeltrans()

SCIP_RETCODE SCIPsetProbDeltrans	(	SCIP *	scip,
		SCIP_DECL_PROBDELTRANS((*probdeltrans))
	)

sets callback to free user data of transformed problem

Returns: SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see SCIP_RETCODE for a complete list of error codes.

Precondition

This method can be called if scip is in one of the following stages:

SCIP_STAGE_PROBLEM

Parameters

scip	SCIP data structure

Definition at line 242 of file scip_prob.c.

References FALSE, NULL, Scip::origprob, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPprobSetDeltrans(), and TRUE.

Referenced by SCIPcreateProbCyc(), and SCIPprobdataCreate().

◆ SCIPsetProbInitsol()

SCIP_RETCODE SCIPsetProbInitsol	(	SCIP *	scip,
		SCIP_DECL_PROBINITSOL((*probinitsol))
	)

sets solving process initialization callback of transformed data

Returns: SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see SCIP_RETCODE for a complete list of error codes.

Precondition

This method can be called if scip is in one of the following stages:

SCIP_STAGE_PROBLEM

Parameters

scip	SCIP data structure

Definition at line 263 of file scip_prob.c.

References FALSE, NULL, Scip::origprob, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPprobSetInitsol(), and TRUE.

Referenced by SCIPprobdataCreate().

◆ SCIPsetProbExitsol()

SCIP_RETCODE SCIPsetProbExitsol	(	SCIP *	scip,
		SCIP_DECL_PROBEXITSOL((*probexitsol))
	)

sets solving process deinitialization callback of transformed data

Returns: SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see SCIP_RETCODE for a complete list of error codes.

Precondition

This method can be called if scip is in one of the following stages:

SCIP_STAGE_PROBLEM

Parameters

scip	SCIP data structure

Definition at line 285 of file scip_prob.c.

References FALSE, NULL, Scip::origprob, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPprobSetExitsol(), and TRUE.

Referenced by SCIPprobdataCreate().

◆ SCIPsetProbCopy()

SCIP_RETCODE SCIPsetProbCopy	(	SCIP *	scip,
		SCIP_DECL_PROBCOPY((*probcopy))
	)

sets callback to copy user data to a subscip

Returns: SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see SCIP_RETCODE for a complete list of error codes.

Precondition

This method can be called if scip is in one of the following stages:

SCIP_STAGE_PROBLEM

Parameters

scip	SCIP data structure

Definition at line 306 of file scip_prob.c.

References FALSE, NULL, Scip::origprob, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPprobSetCopy(), and TRUE.

Referenced by SCIPcreateProbCyc().

◆ SCIPreadProb()

SCIP_RETCODE SCIPreadProb	(	SCIP *	scip,
		const char *	filename,
		const char *	extension
	)

reads problem from file and initializes all solving data structures

Returns: SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see SCIP_RETCODE for a complete list of error codes.

Precondition

This method can be called if scip is in one of the following stages:

Postcondition

After the method was called, SCIP is in one of the following stages:

SCIP_STAGE_INIT if reading failed (usually, when a SCIP_READERROR occurs)
SCIP_STAGE_PROBLEM if the problem file was successfully read

Parameters

scip	SCIP data structure
filename	problem file name
extension	extension of the desired file reader, or NULL if file extension should be used

Definition at line 339 of file scip_prob.c.

References SCIP_Cons::conshdlr, SCIP_Set::conshdlrs, SCIP_Prob::conss, SCIP_Set::disp_verblevel, FALSE, h, Scip::messagehdlr, SCIP_Prob::nbinvars, SCIP_Set::nconshdlrs, SCIP_Prob::nconss, SCIP_Prob::ncontvars, SCIP_Prob::nimplvars, SCIP_Prob::nintvars, SCIP_Set::nreaders, NULL, SCIP_Prob::nvars, Scip::origprob, SCIP_Set::random_permutationseed, SCIP_Set::random_permuteconss, SCIP_Set::random_permutevars, SCIP_Set::readers, SCIP_Bool, SCIP_CALL, SCIP_DIDNOTRUN, SCIP_NOFILE, SCIP_OKAY, SCIP_PLUGINNOTFOUND, SCIP_READERROR, SCIP_Real, SCIP_SUCCESS, SCIP_VERBLEVEL_FULL, SCIP_VERBLEVEL_NORMAL, SCIPallocClearBufferArray, SCIPcheckStage(), SCIPclockSetTime(), SCIPconshdlrGetName(), SCIPduplicateBufferArray, SCIPerrorMessage, SCIPfreeBufferArray, SCIPgetBoolParam(), SCIPgetReadingTime(), SCIPmessagePrintVerbInfo(), SCIPpermuteProb(), SCIPreaderGetName(), SCIPreaderRead(), SCIPsplitFilename(), Scip::set, SCIP_Stat::solvingtime, Scip::stat, SCIP_Set::time_reading, and TRUE.

Referenced by fromAmpl(), fromCommandLine(), SCIP_DECL_DIALOGEXEC(), SCIPreadSol(), and solveMinIISC().

◆ SCIPwriteOrigProblem()

SCIP_RETCODE SCIPwriteOrigProblem	(	SCIP *	scip,
		const char *	filename,
		const char *	extension,
		SCIP_Bool	genericnames
	)

writes original problem to file

Returns: SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see SCIP_RETCODE for a complete list of error codes.

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure
filename	output file (or NULL for standard output)
extension	extension of the desired file reader, or NULL if file extension should be used
genericnames	using generic variable and constraint names?

Definition at line 601 of file scip_prob.c.

References FALSE, NULL, Scip::origprob, SCIP_CALL, SCIP_FILECREATEERROR, SCIP_OKAY, SCIP_PLUGINNOTFOUND, SCIP_WRITEERROR, SCIPcheckStage(), TRUE, and writeProblem().

Referenced by createSubscip(), infinityCountUpdate(), SCIP_DECL_HEUREXEC(), setupAndSolveSubscipCrossover(), solveClassification(), solveSubscipLpface(), and writeProblem().

◆ SCIPwriteTransProblem()

SCIP_RETCODE SCIPwriteTransProblem	(	SCIP *	scip,
		const char *	filename,
		const char *	extension,
		SCIP_Bool	genericnames
	)

writes transformed problem which are valid in the current node to file

Returns: SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see SCIP_RETCODE for a complete list of error codes.

Precondition

This method can be called if scip is in one of the following stages:

Note: If you want the write all constraints (including the once which are redundant for example), you need to set the parameter <write/allconss> to TRUE

Parameters

scip	SCIP data structure
filename	output file (or NULL for standard output)
extension	extension of the desired file reader, or NULL if file extension should be used
genericnames	using generic variable and constraint names?

Definition at line 648 of file scip_prob.c.

References FALSE, NULL, SCIP_CALL, SCIP_FILECREATEERROR, SCIP_OKAY, SCIP_PLUGINNOTFOUND, SCIP_WRITEERROR, SCIPcheckStage(), Scip::transprob, TRUE, and writeProblem().

Referenced by ObjPricerVRP::pricing(), SCIP_DECL_HEUREXEC(), SCIPincludePresolMILP(), and writeProblem().

◆ SCIPfreeProb()

SCIP_RETCODE SCIPfreeProb ( SCIP * scip )

frees problem and solution process data

Returns: SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see SCIP_RETCODE for a complete list of error codes.

Precondition

This method can be called if scip is in one of the following stages:

Postcondition

After this method was called, SCIP is in the following stage:

SCIP_STAGE_INIT

Parameters

scip	SCIP data structure

Definition at line 694 of file scip_prob.c.

References SCIP_Set::benders, Scip::conflictstore, Scip::decompstore, Scip::eventqueue, FALSE, Scip::lp, Scip::mem, Scip::messagehdlr, SCIP_Set::misc_transsolsorig, SCIP_Set::nactivebenders, SCIP_Set::nactivepricers, SCIP_Set::nconcsolvers, SCIP_Set::nreaders, NULL, Scip::origprimal, Scip::origprob, SCIP_Set::pricers, SCIP_Mem::probmem, SCIP_Set::readers, Scip::reopt, SCIP_Bool, SCIP_CALL, SCIP_OKAY, SCIP_STAGE_INIT, SCIP_STAGE_PROBLEM, SCIPbendersDeactivate(), SCIPblkmem(), SCIPcheckStage(), SCIPconflictstoreFree(), SCIPdebugFreeDebugData, SCIPdecompstoreFree(), SCIPfreeConcurrent(), SCIPfreeTransform(), SCIPpricerDeactivate(), SCIPprimalFree(), SCIPprobFree(), SCIPreaderResetReadingTime(), SCIPreoptFree(), SCIPsetFreeConcsolvers(), SCIPstatFree(), SCIPsyncstoreExit(), SCIPsyncstoreIsInitialized(), Scip::set, SCIP_Set::stage, Scip::stat, Scip::syncstore, and TRUE.

Referenced by copyProb(), readFZNFile(), SCIP_DECL_DIALOGEXEC(), SCIPcreateProb(), and SCIPfree().

◆ SCIPpermuteProb()

SCIP_RETCODE SCIPpermuteProb	(	SCIP *	scip,
		unsigned int	randseed,
		SCIP_Bool	permuteconss,
		SCIP_Bool	permutebinvars,
		SCIP_Bool	permuteintvars,
		SCIP_Bool	permuteimplvars,
		SCIP_Bool	permutecontvars
	)

permutes parts of the problem data structure

Returns: SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see SCIP_RETCODE for a complete list of error codes.

Precondition

This method can be called if scip is in one of the following stages:

permutes parts of the problem data structure

Returns: SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see SCIP_RETCODE for a complete list of error codes.

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure
randseed	seed value for random generator
permuteconss	should the list of constraints in each constraint handler be permuted?
permutebinvars	should the list of binary variables be permuted?
permuteintvars	should the list of integer variables be permuted?
permuteimplvars	should the list of implicit integer variables be permuted?
permutecontvars	should the list of continuous integer variables be permuted?

Definition at line 781 of file scip_prob.c.

References SCIP_Prob::conss, SCIP_Set::disp_verblevel, FALSE, Scip::messagehdlr, SCIP_Prob::nconss, NULL, Scip::origprob, SCIP_Bool, SCIP_CALL, SCIP_OKAY, SCIP_VERBLEVEL_HIGH, SCIPcheckStage(), SCIPconshdlrGetConss(), SCIPconshdlrGetNActiveConss(), SCIPcreateRandom(), SCIPfreeRandom(), SCIPgetConshdlrs(), SCIPgetNConshdlrs(), SCIPgetNContVars(), SCIPgetVarsData(), SCIPisTransformed(), SCIPmessagePrintVerbInfo(), SCIPprobIsPermuted(), SCIPprobMarkPermuted(), SCIPrandomPermuteArray(), Scip::set, Scip::transprob, and TRUE.

Referenced by SCIPreadProb(), SCIPtransformProb(), and setupAndSolveSubscipCrossover().

◆ SCIPgetProbData()

SCIP_PROBDATA* SCIPgetProbData ( SCIP * scip )

gets user problem data

Returns: a SCIP_PROBDATA pointer, or NULL if no problem data was allocated

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure

Definition at line 964 of file scip_prob.c.

References FALSE, NULL, Scip::origprob, SCIP_CALL_ABORT, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_EXITSOLVE, SCIP_STAGE_FREETRANS, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_INITSOLVE, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIP_STAGE_TRANSFORMING, SCIPABORT, SCIPcheckStage(), SCIPerrorMessage, SCIPprobGetData(), Scip::set, SCIP_Set::stage, Scip::transprob, and TRUE.

Referenced by addBranchingDecisionConss(), COLORprobAddNewStableSet(), COLORprobAddVarForStableSet(), COLORprobGetConstraint(), COLORprobGetConstraints(), COLORprobGetDeletedNodes(), COLORprobGetGraph(), COLORprobGetNewNodeForOriginalNode(), COLORprobGetNNodes(), COLORprobGetNStableSets(), COLORprobGetOriginalGraph(), COLORprobGetOriginalNNodes(), COLORprobGetOriginalNodesForNewNodes(), COLORprobGetStableSet(), COLORprobGetStableSets(), COLORprobGetVarForStableSet(), COLORprobIsNodeInStableSet(), COLORprobPrintStableSet(), COLORprobPrintStableSets(), COLORprobStableSetIsNew(), consdataPrint(), enforceSol(), isSolFeasible(), preprocessGraph(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONSACTIVE(), SCIP_DECL_CONSDEACTIVE(), SCIP_DECL_CONSEXITSOL(), SCIP_DECL_CONSINITSOL(), SCIP_DECL_CONSLOCK(), SCIP_DECL_CONSPROP(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_PRICERREDCOST(), SCIP_DECL_TABLEOUTPUT(), SCIPcycGetBinvars(), SCIPcycGetCmatrix(), SCIPcycGetEdgeGraph(), SCIPcycGetEdgevars(), SCIPcycGetNBins(), SCIPcycGetNCluster(), SCIPcycGetScale(), SCIPcycPrintSolutionValues(), SCIPgetObjProbData(), SCIPprobdataSetupProblem(), SCIPvardataPrint(), and SCIPwriteSolutionNl().

◆ SCIPsetProbData()

SCIP_RETCODE SCIPsetProbData	(	SCIP *	scip,
		SCIP_PROBDATA *	probdata
	)

sets user problem data

Returns: SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see SCIP_RETCODE for a complete list of error codes.

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure
probdata	user problem data to use

Definition at line 1014 of file scip_prob.c.

References FALSE, Scip::origprob, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_EXITSOLVE, SCIP_STAGE_FREE, SCIP_STAGE_FREETRANS, SCIP_STAGE_INIT, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_INITSOLVE, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIP_STAGE_TRANSFORMING, SCIPcheckStage(), SCIPerrorMessage, SCIPprobSetData(), Scip::set, SCIP_Set::stage, Scip::transprob, and TRUE.

Referenced by probdataFree(), SCIPcreateProbCyc(), and SCIPprobdataCreate().

◆ SCIPgetProbName()

const char* SCIPgetProbName ( SCIP * scip )

returns name of the current problem instance

Returns: name of the current problem instance

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure

Definition at line 1067 of file scip_prob.c.

References FALSE, Scip::origprob, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPprobGetName(), and TRUE.

Referenced by addLocalBranchingConstraint(), addLocalbranchingConstraintAndObjcutoff(), addScenarioVarsAndConsToProb(), addTrustRegionConstraints(), applyRepair(), checkSubproblemConvexity(), computeAutomorphisms(), createBlockproblem(), createCoveringProblem(), createSubSCIP(), createSubscip(), detectMinors(), doCopy(), findBestObjectiveValue(), initData(), initProblem(), printLongStatistics(), propdataInit(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_READERREAD(), SCIPaddTrustregionNeighborhoodConstraint(), SCIPbendersApplyDecomposition(), SCIPcopyLargeNeighborhoodSearch(), SCIPincludePresolMILP(), SCIPvarUpdatePseudocost(), separateGLS(), setupSubscipLpface(), solveComponent(), solveSubNLP(), and subscipSetParams().

◆ SCIPsetProbName()

SCIP_RETCODE SCIPsetProbName	(	SCIP *	scip,
		const char *	name
	)

sets name of the current problem instance

Returns: SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see SCIP_RETCODE for a complete list of error codes.

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure
name	name to be set

Definition at line 1095 of file scip_prob.c.

References FALSE, Scip::origprob, SCIP_CALL, SCIPcheckStage(), SCIPprobSetName(), and TRUE.

Referenced by getStatistics().

◆ SCIPchgReoptObjective()

SCIP_RETCODE SCIPchgReoptObjective	(	SCIP *	scip,
		SCIP_OBJSENSE	objsense,
		SCIP_VAR **	vars,
		SCIP_Real *	coefs,
		int	nvars
	)

changes the objective function

Returns: SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see SCIP_RETCODE for a complete list of error codes.

Precondition

This method can be called if scip is in one of the following stages:

Note: This method should be only used to change the objective function during two reoptimization runs and is only recommended to an experienced user.; All variables not given in vars array are assumed to have an objective coefficient of zero.

changes the objective function of the original problem.

Returns: SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see SCIP_RETCODE for a complete list of error codes.

Precondition

This method can be called if scip is in one of the following stages:

Note: This method should be only used to change the objective function during two reoptimization runs and is only recommended to an experienced user.; All variables not given in vars array are assumed to have an objective coefficient of zero.

Parameters

scip	SCIP data structure
objsense	new objective function
vars	original problem variables
coefs	objective coefficients
nvars	variables in vars array

Definition at line 1119 of file scip_prob.c.

References FALSE, NULL, SCIP_Prob::nvars, SCIP_Prob::objisintegral, SCIP_Prob::objoffset, SCIP_Prob::objscale, SCIP_Prob::objsense, Scip::origprob, SCIP_CALL, SCIP_INVALIDDATA, SCIP_OKAY, SCIP_Real, SCIP_STAGE_TRANSFORMED, SCIPaddVarObj(), SCIPcheckStage(), SCIPchgVarObj(), SCIPdebugMsg, SCIPerrorMessage, SCIPisPositive(), SCIPisZero(), SCIPvarGetName(), SCIPvarGetObj(), SCIPvarGetStatus(), SCIPvarIsOriginal(), Scip::set, SCIP_Set::stage, Scip::transprob, TRUE, and SCIP_Prob::vars.

Referenced by readObjective().

◆ SCIPgetObjsense()

SCIP_OBJSENSE SCIPgetObjsense ( SCIP * scip )

returns objective sense of original problem

Returns: objective sense of original problem

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure

Definition at line 1225 of file scip_prob.c.

References FALSE, SCIP_Prob::objsense, Scip::origprob, SCIP_CALL_ABORT, SCIPcheckStage(), and TRUE.

Referenced by computeStandardIntegerOptCut(), computeStandardNLPOptimalityCut(), createSubproblem(), AMPLProblemHandler::EndInput(), generateAndApplyBendersIntegerCuts(), SCIP_DECL_DISPOUTPUT(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_EVENTINIT(), SCIP_DECL_READERREAD(), SCIPbendersComputeSubproblemLowerbound(), SCIPbendersExec(), SCIPbendersExecSubproblemSolve(), SCIPbendersSolveSubproblem(), SCIPbendersSolveSubproblemLP(), SCIPcopyOrigProb(), SCIPgetDualSolVal(), SCIPheurPassSolAddSol(), SCIPheurPassSolTrySol(), SCIPmakeSOS1sFeasible(), SCIPprintStage(), SCIPsolveIsStopped(), SCIPvalidateSolve(), SCIPvisualLowerbound(), SCIPvisualUpperbound(), and SCIPwriteSolutionNl().

◆ SCIPsetObjsense()

SCIP_RETCODE SCIPsetObjsense	(	SCIP *	scip,
		SCIP_OBJSENSE	objsense
	)

sets objective sense of problem

Returns: SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see SCIP_RETCODE for a complete list of error codes.

Precondition

This method can be called if scip is in one of the following stages:

SCIP_STAGE_PROBLEM

Parameters

scip	SCIP data structure
objsense	new objective sense

Definition at line 1242 of file scip_prob.c.

References FALSE, Scip::origprob, SCIP_CALL, SCIP_INVALIDDATA, SCIP_OBJSENSE_MAXIMIZE, SCIP_OBJSENSE_MINIMIZE, SCIP_OKAY, SCIPcheckStage(), SCIPerrorMessage, SCIPprobSetObjsense(), and TRUE.

Referenced by createMIP(), createProbQP(), createSubscip(), createVariables(), getObjective(), infinityCountUpdate(), main(), AMPLProblemHandler::OnObj(), scipexamples::QueensSolver::QueensSolver(), readCnf(), readFZNFile(), readMps(), readObjective(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_PRICERREDCOST(), SCIP_DECL_READERREAD(), SCIPcopyOrigProb(), SCIPprobdataCreate(), SCIPreadLp(), SCIPreadOpb(), SCIPreadPip(), SCIPtransformMinUC(), setupProblem(), solveClassification(), and solveMinIISC().

◆ SCIPaddObjoffset()

SCIP_RETCODE SCIPaddObjoffset	(	SCIP *	scip,
		SCIP_Real	addval
	)

adds offset of objective function

Returns: SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see SCIP_RETCODE for a complete list of error codes.

Precondition

This method can be called if scip is in one of the following stages:

SCIP_STAGE_PRESOLVING

Parameters

scip	SCIP data structure
addval	value to add to objective offset

Definition at line 1268 of file scip_prob.c.

References Scip::eventfilter, Scip::eventqueue, FALSE, Scip::lp, Scip::origprob, Scip::primal, Scip::reopt, SCIP_CALL, SCIP_OKAY, SCIPblkmem(), SCIPcheckStage(), SCIPprimalUpdateObjoffset(), SCIPprobAddObjoffset(), Scip::set, Scip::stat, Scip::transprob, Scip::tree, and TRUE.

◆ SCIPaddOrigObjoffset()

SCIP_RETCODE SCIPaddOrigObjoffset	(	SCIP *	scip,
		SCIP_Real	addval
	)

adds offset of objective function to original problem and to all existing solution in original space

Returns: SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see SCIP_RETCODE for a complete list of error codes.

Precondition

This method can be called if scip is in one of the following stages:

SCIP_STAGE_PROBLEM

Parameters

scip	SCIP data structure
addval	value to add to objective offset

Definition at line 1290 of file scip_prob.c.

References FALSE, SCIP_Prob::objoffset, Scip::origprimal, Scip::origprob, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPprimalAddOrigObjoffset(), Scip::set, and TRUE.

Referenced by createProbSimplified(), getObjectiveFactor(), readObjective(), readOPBFile(), readRhs(), SCIPcopyOrigProb(), and setObjective().

◆ SCIPgetOrigObjoffset()

SCIP_Real SCIPgetOrigObjoffset ( SCIP * scip )

returns the objective offset of the original problem

Returns: the objective offset of the original problem

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure

Definition at line 1319 of file scip_prob.c.

References FALSE, SCIP_Prob::objoffset, Scip::origprob, SCIP_CALL_ABORT, SCIPcheckStage(), and TRUE.

Referenced by applyBounding(), SCIPcopyOrigProb(), and SCIPmergeVariableStatistics().

◆ SCIPgetOrigObjscale()

SCIP_Real SCIPgetOrigObjscale ( SCIP * scip )

returns the objective scale of the original problem

Returns: the objective scale of the original problem

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure

Definition at line 1344 of file scip_prob.c.

References FALSE, SCIP_Prob::objscale, Scip::origprob, SCIP_CALL_ABORT, SCIPcheckStage(), and TRUE.

Referenced by SCIPmergeVariableStatistics().

◆ SCIPgetTransObjoffset()

SCIP_Real SCIPgetTransObjoffset ( SCIP * scip )

returns the objective offset of the transformed problem

Returns: the objective offset of the transformed problem

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure

Definition at line 1367 of file scip_prob.c.

References FALSE, SCIP_Prob::objoffset, SCIP_CALL_ABORT, SCIPcheckStage(), Scip::transprob, and TRUE.

Referenced by applyDomainChanges(), computeStandardNLPOptimalityCut(), getGenVBoundsBound(), SCIPgenVBoundAdd(), and writeBounds().

◆ SCIPgetTransObjscale()

SCIP_Real SCIPgetTransObjscale ( SCIP * scip )

returns the objective scale of the transformed problem

Returns: the objective scale of the transformed problem

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure

Definition at line 1390 of file scip_prob.c.

References FALSE, SCIP_Prob::objscale, SCIP_CALL_ABORT, SCIPcheckStage(), Scip::transprob, and TRUE.

Referenced by applyDomainChanges(), computeStandardNLPOptimalityCut(), getGenVBoundsBound(), SCIPgenVBoundAdd(), SCIPsolveIsStopped(), and writeBounds().

◆ SCIPsetObjlimit()

SCIP_RETCODE SCIPsetObjlimit	(	SCIP *	scip,
		SCIP_Real	objlimit
	)

sets limit on objective function, such that only solutions better than this limit are accepted

Note: SCIP will only look for solutions with a strictly better objective value, thus, e.g., prune all branch-and-bound nodes with dual bound equal or worse to the objective limit. However, SCIP will also collect solutions with objective value worse than the objective limit and use them to run improvement heuristics on them.; If SCIP can prove that there exists no solution with a strictly better objective value, the solving status will normally be infeasible (the objective limit is interpreted as part of the problem). The only exception is that by chance, SCIP found a solution with the same objective value and thus proved the optimality of this solution, resulting in solution status optimal.

Returns: SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see SCIP_RETCODE for a complete list of error codes.

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure
objlimit	new primal objective limit

Definition at line 1422 of file scip_prob.c.

References Scip::eventfilter, Scip::eventqueue, FALSE, Scip::lp, Scip::mem, Scip::origprob, Scip::primal, SCIP_Mem::probmem, Scip::reopt, SCIP_Set::reopt_enable, SCIP_CALL, SCIP_INVALIDCALL, SCIP_INVALIDDATA, SCIP_OKAY, SCIP_Real, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIPcheckStage(), SCIPerrorMessage, SCIPprimalUpdateObjlimit(), SCIPprobGetObjlim(), SCIPprobInternObjval(), SCIPprobSetObjlim(), SCIPtransformObj(), Scip::set, SCIP_Set::stage, Scip::stat, Scip::transprob, Scip::tree, and TRUE.

Referenced by addLocalbranchingConstraintAndObjcutoff(), applyDomainChanges(), applyRepair(), createCipFormulation(), doSolveSubMIP(), freeReoptSolve(), freeTransform(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_HEUREXEC(), SCIPapplyHeurSubNlp(), setupAndSolve(), setupAndSolveSubscip(), setupAndSolveSubscipCrossover(), setupAndSolveSubscipMutation(), setupAndSolveSubscipRapidlearning(), setupSubScip(), solveCoveringProblem(), solveSubproblem(), subscipSetParams(), wrapperDins(), wrapperRins(), and writeBounds().

◆ SCIPgetObjlimit()

SCIP_Real SCIPgetObjlimit ( SCIP * scip )

returns current limit on objective function

Returns: the current objective limit of the original problem

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure

Definition at line 1492 of file scip_prob.c.

References FALSE, Scip::origprob, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPprobGetObjlim(), Scip::set, and TRUE.

Referenced by SCIP_DECL_DIALOGEXEC().

◆ SCIPsetObjIntegral()

SCIP_RETCODE SCIPsetObjIntegral ( SCIP * scip )

informs SCIP, that the objective value is always integral in every feasible solution

Returns: SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see SCIP_RETCODE for a complete list of error codes.

Precondition

This method can be called if scip is in one of the following stages:

Note: This function should be used to inform SCIP that the objective function is integral, helping to improve the performance. This is useful when using column generation. If no column generation (pricing) is used, SCIP automatically detects whether the objective function is integral or can be scaled to be integral. However, in any case, the user has to make sure that no variable is added during the solving process that destroys this property.

Parameters

scip	SCIP data structure

Definition at line 1519 of file scip_prob.c.

References FALSE, Scip::origprob, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMING, SCIPcheckStage(), SCIPerrorMessage, SCIPprobSetObjIntegral(), Scip::set, SCIP_Set::stage, Scip::transprob, and TRUE.

Referenced by readCol(), SCIPprobdataCreate(), and setupProblem().

◆ SCIPisObjIntegral()

SCIP_Bool SCIPisObjIntegral ( SCIP * scip )

returns whether the objective value is known to be integral in every feasible solution

Returns: TRUE, if objective value is known to be always integral, otherwise FALSE

Precondition

This method can be called if scip is in one of the following stages:

Note: If no pricing is performed, SCIP automatically detects whether the objective function is integral or can be scaled to be integral, helping to improve performance. This function returns the result. Otherwise SCIPsetObjIntegral() can be used to inform SCIP. However, in any case, the user has to make sure that no variable is added during the solving process that destroys this property.

Parameters

scip	SCIP data structure

Definition at line 1562 of file scip_prob.c.

References FALSE, SCIP_Set::nactivepricers, SCIP_Prob::nvars, SCIP_Prob::objoffset, Scip::origprob, SCIP_CALL_ABORT, SCIP_Real, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMING, SCIP_VARTYPE_CONTINUOUS, SCIPABORT, SCIPcheckStage(), SCIPerrorMessage, SCIPisIntegral(), SCIPisZero(), SCIPprobIsObjIntegral(), SCIPvarGetObj(), SCIPvarGetType(), Scip::set, SCIP_Set::stage, Scip::transprob, TRUE, and SCIP_Prob::vars.

Referenced by addAuxiliaryVariablesToMaster(), addTrustRegionConstraints(), aggregation(), computeCut(), createSubscip(), SCIPapplyProximity(), SCIPperformGenericDivingAlgorithm(), separateCuts(), setupSubScip(), and updateObjUpperbound().

◆ SCIPgetObjNorm()

SCIP_Real SCIPgetObjNorm ( SCIP * scip )

returns the Euclidean norm of the objective function vector (available only for transformed problem)

Returns: the Euclidean norm of the transformed objective function vector

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure

Definition at line 1641 of file scip_prob.c.

References FALSE, Scip::lp, SCIP_Lp::objsqrnormunreliable, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPlpGetObjNorm(), SCIPlpRecalculateObjSqrNorm(), Scip::set, and TRUE.

Referenced by createNewSol(), SCIP_DECL_DIVESETGETSCORE(), and separateCuts().

◆ SCIPaddVar()

SCIP_RETCODE SCIPaddVar	(	SCIP *	scip,
		SCIP_VAR *	var
	)

adds variable to the problem

Returns: SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See SCIP_RETCODE for a complete list of error codes.

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure
var	variable to add

Definition at line 1668 of file scip_prob.c.

References Scip::branchcand, Scip::eventfilter, Scip::eventqueue, FALSE, Scip::lp, Scip::mem, NULL, Scip::origprob, SCIP_Mem::probmem, SCIP_CALL, SCIP_INVALIDCALL, SCIP_INVALIDDATA, SCIP_OKAY, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMING, SCIP_VARSTATUS_COLUMN, SCIP_VARSTATUS_LOOSE, SCIP_VARSTATUS_NEGATED, SCIP_VARSTATUS_ORIGINAL, SCIPaddVar(), SCIPcheckStage(), SCIPerrorMessage, SCIPprobAddVar(), SCIPvarGetNegationVar(), SCIPvarGetProbindex(), SCIPvarGetStatus(), Scip::set, SCIP_Set::stage, Scip::transprob, and TRUE.

Referenced by addAuxiliaryVariablesToMaster(), addConstraintToBendersSubproblem(), addExtendedAsymmetricFormulation(), addExtendedFlowFormulation(), addScenarioVarsToProb(), addSlackVars(), addVarCardinality(), aggregation(), appendVarCardinality(), applyFixings(), applyRepair(), consdataCreateBinvars(), createAndAddAndCons(), createAuxVar(), createBlockproblem(), createCipFormulation(), createConstraint(), createConstraints(), createCoveringProblem(), createDisaggrVars(), createInitialColumns(), createKKTComplementarityBinary(), createKKTComplementarityBounds(), createKKTComplementarityLinear(), createKKTDualCons(), createMasterproblem(), createMIP(), createMipCpFormulation(), createMipFormulation(), createObjRow(), createOriginalproblem(), createPatternVars(), createProbQP(), createRelaxation(), createSubproblem(), createSubproblems(), createSubSCIP(), createSubscip(), createVariable(), createVariables(), AMPLProblemHandler::EndInput(), execmain(), getBinaryProductExprDo(), getFixedVariable(), getScenarioDecompVar(), getVariable(), infinityCountUpdate(), initPricing(), main(), AMPLProblemHandler::OnBinaryLogical(), AMPLProblemHandler::OnHeader(), AMPLProblemHandler::OnObj(), AMPLProblemHandler::OnRelational(), presolveAddKKTLinearCons(), scipexamples::QueensSolver::QueensSolver(), readBounds(), readCnf(), readCols(), readLIBSVM(), readObjective(), readQMatrix(), readVariables(), reformulateFactorizedBinaryQuadratic(), SCIP_DECL_HEUREXEC(), SCIP_DECL_LINCONSUPGD(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_READERREAD(), SCIP_DECL_SOLVECUMULATIVE(), SCIPaddTrustregionNeighborhoodConstraint(), SCIPaddVar(), SCIPbendersMergeSubproblemIntoMaster(), SCIPcreateConsCardinality(), SCIPcreateConsIndicatorGeneric(), SCIPcreateConsIndicatorGenericLinConsPure(), SCIPcreateSchedulingProblem(), SCIPgetVarCopy(), SCIPtransformMinUC(), SCIPverifyCircularPatternNLP(), setObjective(), setupAndSolveCumulativeSubscip(), setupAndSolveFiniteSolSubscip(), setupProblem(), solveClassification(), solveMinIISC(), solvePricingMINLP(), and tightenCoefs().

◆ SCIPaddPricedVar()

SCIP_RETCODE SCIPaddPricedVar	(	SCIP *	scip,
		SCIP_VAR *	var,
		SCIP_Real	score
	)

adds variable to the problem and uses it as pricing candidate to enter the LP

Returns: SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See SCIP_RETCODE for a complete list of error codes.

Precondition: This method can only be called if scip is in stage SCIP_STAGE_SOLVING

Parameters

scip	SCIP data structure
var	variable to add
score	pricing score of variable (the larger, the better the variable)

Definition at line 1733 of file scip_prob.c.

References Scip::branchcand, Scip::eventfilter, Scip::eventqueue, FALSE, Scip::lp, Scip::mem, NULL, Scip::pricestore, SCIP_Mem::probmem, SCIP_CALL, SCIP_INVALIDDATA, SCIP_OKAY, SCIP_VARSTATUS_COLUMN, SCIP_VARSTATUS_LOOSE, SCIP_VARSTATUS_NEGATED, SCIP_VARSTATUS_ORIGINAL, SCIPaddPricedVar(), SCIPcheckStage(), SCIPerrorMessage, SCIPpricestoreAddVar(), SCIPprobAddVar(), SCIPtreeGetCurrentDepth(), SCIPvarGetNegationVar(), SCIPvarGetProbindex(), SCIPvarGetStatus(), Scip::set, Scip::transprob, Scip::tree, and TRUE.

Referenced by ObjPricerVRP::add_tour_variable(), addVariable(), SCIP_DECL_PRICERFARKAS(), SCIP_DECL_PRICERREDCOST(), and SCIPaddPricedVar().

◆ SCIPdelVar()

SCIP_RETCODE SCIPdelVar	(	SCIP *	scip,
		SCIP_VAR *	var,
		SCIP_Bool *	deleted
	)

removes variable from the problem

Returns: SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See SCIP_RETCODE for a complete list of error codes.

Precondition

This method can be called if scip is in one of the following stages:

removes variable from the problem

Returns: SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See SCIP_RETCODE for a complete list of error codes.

Precondition

This method can be called if scip is in one of the following stages:

Warning: The variable is not deleted from the constraints when in SCIP_STAGE_PROBLEM. In this stage, it is the user's responsibility to ensure the variable has been removed from all constraints or the constraints deleted.

Parameters

scip	SCIP data structure
var	variable to delete
deleted	pointer to store whether marking variable to be deleted was successful

Definition at line 1790 of file scip_prob.c.

References Scip::branchcand, Scip::cliquetable, Scip::eventqueue, FALSE, Scip::lp, Scip::mem, NULL, Scip::origprob, SCIP_Mem::probmem, SCIP_CALL, SCIP_INVALIDCALL, SCIP_INVALIDDATA, SCIP_OKAY, SCIP_STAGE_FREETRANS, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_TRANSFORMED, SCIP_STAGE_TRANSFORMING, SCIP_VARSTATUS_COLUMN, SCIP_VARSTATUS_LOOSE, SCIP_VARSTATUS_ORIGINAL, SCIPcheckStage(), SCIPerrorMessage, SCIPprobDelVar(), SCIPprobPerformVarDeletions(), SCIPvarGetStatus(), Scip::set, SCIP_Set::stage, Scip::stat, Scip::transprob, and TRUE.

Referenced by removeCoreVariablesAndConstraints(), and removeVariablesAndConstraintsFromMaster().

◆ SCIPgetVarsData()

SCIP_RETCODE SCIPgetVarsData	(	SCIP *	scip,
		SCIP_VAR ***	vars,
		int *	nvars,
		int *	nbinvars,
		int *	nintvars,
		int *	nimplvars,
		int *	ncontvars
	)

gets variables of the problem along with the numbers of different variable types; data may become invalid after calls to SCIPchgVarType(), SCIPfixVar(), SCIPaggregateVars(), and SCIPmultiaggregateVar()

Returns: SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See SCIP_RETCODE for a complete list of error codes.

Precondition

This method can be called if scip is in one of the following stages:

Note: Variables in the vars array are ordered: binaries first, then integers, implicit integers and continuous last.

Parameters

scip	SCIP data structure
vars	pointer to store variables array or NULL if not needed
nvars	pointer to store number of variables or NULL if not needed
nbinvars	pointer to store number of binary variables or NULL if not needed
nintvars	pointer to store number of integer variables or NULL if not needed
nimplvars	pointer to store number of implicit integral vars or NULL if not needed
ncontvars	pointer to store number of continuous variables or NULL if not needed

Definition at line 1866 of file scip_prob.c.

References FALSE, SCIP_Prob::nbinvars, SCIP_Prob::ncontvars, SCIP_Prob::nimplvars, SCIP_Prob::nintvars, NULL, SCIP_Prob::nvars, Scip::origprob, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_EXITSOLVE, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_INITSOLVE, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIPcheckStage(), SCIPerrorMessage, Scip::set, SCIP_Set::stage, Scip::transprob, TRUE, and SCIP_Prob::vars.

Referenced by addCut(), addLocalBranchingConstraint(), addLocalbranchingConstraintAndObjcutoff(), addObjcut(), addTrustRegionConstraints(), alnsFixMoreVariables(), applyBoundHeur(), applyRepair(), applyVbounds(), checkCands(), checkSubproblemConvexity(), checkSubproblemIndependence(), computeCoverUndercover(), computeCut(), computeFixingrate(), copyVars(), countNonlinearities(), createCGCutCMIR(), createCGCutDirect(), createCGCuts(), createCGCutStrongCG(), createCGMIPprimalsols(), createCoveringProblem(), createNewSol(), createNewSols(), createSolFromNLP(), createSolFromSubScipSol(), createSubproblems(), createSubSCIP(), DECL_CHANGESUBSCIP(), DECL_VARFIXINGS(), determineFixings(), determineMaxDistance(), determineVariableFixings(), executeLNSHeuristic(), fixMatchingSolutionValues(), fixNonNeighborhoodVariables(), fixVariables(), getObjectiveFactor(), LNSFixMoreVariables(), performInteriorSolCutStrengthening(), performRelaxSimpleRounding(), presolveTwoOpt(), restrictToBinaryBounds(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONSENFORELAX(), SCIP_DECL_CONSINITPRE(), SCIP_DECL_HEUREXEC(), SCIP_DECL_SEPAEXECLP(), SCIP_DECL_SEPAEXECSOL(), SCIPaddTrustregionNeighborhoodConstraint(), SCIPaggrRowSumRows(), SCIPapplyLockFixings(), SCIPapplyProximity(), SCIPapplyUndercover(), SCIPbendersApplyDecomposition(), SCIPbendersChgMastervarsToCont(), SCIPbendersSolSlackVarsActive(), SCIPcalcCliquePartition(), SCIPclearRelaxSolVals(), SCIPcopyImplicationsCliques(), SCIPpermuteProb(), SCIPsetRelaxSolValsSol(), SCIPtransformMinUC(), SCIPtranslateSubSol(), SCIPtranslateSubSols(), SCIPvariablegraphBreadthFirst(), SCIPwriteCliqueGraph(), selectInitialVariableDecomposition(), selectInitialVariableRandomly(), selectNextVariable(), separateGLS(), separateHeur(), separateOddCycles(), setAndUpdateCorePoint(), setupAggregationData(), setupAndSolveSubscip(), setupAndSolveSubscipLocalbranching(), setupAndSolveSubscipRapidlearning(), setupAndSolveSubscipTrustregion(), solCutIsViolated(), solveLp(), solveNLP(), solveSubproblem(), translateSubSol(), and writeBounds().

◆ SCIPgetVars()

SCIP_VAR** SCIPgetVars ( SCIP * scip )

gets array with active problem variables

Returns: array with active problem variables

Precondition

This method can be called if scip is in one of the following stages:

Warning: If your are using the methods which add or change bound of variables (e.g., SCIPchgVarType(), SCIPfixVar(), SCIPaggregateVars(), and SCIPmultiaggregateVar()), it can happen that the internal variable array (which is accessed via this method) gets resized and/or resorted. This can invalid the data pointer which is returned by this method.

Note: Variables in the array are ordered: binaries first, then integers, implicit integers and continuous last.

gets array with active problem variables

Returns: array with active problem variables

Precondition

This method can be called if scip is in one of the following stages:

Note: Variables in the array are ordered: binaries first, then integers, implicit integers and continuous last.

Warning: If your are using the methods which add or change bound of variables (e.g., SCIPchgVarType(), SCIPfixVar(), SCIPaggregateVars(), and SCIPmultiaggregateVar()), it can happen that the internal variable array (which is accessed via this method) gets resized and/or resorted. This can invalid the data pointer which is returned by this method.

Parameters

scip	SCIP data structure

Definition at line 1947 of file scip_prob.c.

References FALSE, NULL, Scip::origprob, SCIP_CALL_ABORT, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_EXITSOLVE, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_INITSOLVE, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIPABORT, SCIPcheckStage(), SCIPerrorMessage, Scip::set, SCIP_Set::stage, Scip::transprob, TRUE, and SCIP_Prob::vars.

Referenced by addCut(), addFixedVarsConss(), addLocalBranchingConstraint(), addLowerboundCons(), alnsUnfixVariables(), applyCompletesol(), applyHeur(), applyNlobbt(), applyProbing(), branchruledataEnsureArraySize(), buildConvexCombination(), buildMod2Matrix(), calcEfficacy(), calcEfficacyDenseStorageQuad(), checkGlobalProperties(), checkIISlocal(), checkSolution(), checkSymmetriesAreSymmetries(), checkSystemGF2(), componentSetupWorkingSol(), computeCut(), computeInitialKnapsackCover(), computeInteriorPoint(), computeNogoodCut(), computeStandardIntegerOptCut(), computeStandardLPFeasibilityCut(), computeStandardLPOptimalityCut(), computeSymmetryGroup(), constructSNFRelaxation(), createAuxiliaryNonlinearSubproblem(), createBlockproblem(), createMasterVarMapping(), createObjRow(), createSubproblem(), createSubSCIP(), createTcliqueGraph(), createVariableMappings(), cutsRoundMIR(), cutsRoundStrongCG(), cutsTransformKnapsackCover(), cutsTransformMIR(), cutsTransformStrongCG(), cutTightenCoefs(), cutTightenCoefsQuad(), decompHorizonInitialize(), detectHiddenProducts(), detectMinors(), dfs(), execRelpscost(), filterCands(), filterExistingLP(), findComponents(), fixAndPropagate(), generateCloseCutPoint(), generateZerohalfCut(), getDecompVarsConssData(), getFactorizedBinaryQuadraticExpr(), getMaxactImplicObjchg(), getRelDistance(), heurdataEnsureArraySize(), heurdataFreeArrays(), heurExec(), improvePoint(), initConcsolver(), initData(), initImplGraphSOS1(), initProblem(), level2dataGetResult(), level2dataStoreResult(), level2resultCreateFromData(), LNSUnfixVariables(), mod2MatrixAddTransRow(), performBoundSubstitution(), performDualfix(), preprocessCliques(), presolRoundVarsSOS1(), projectVbd(), propagateAllConss(), propdataInit(), readOPBFile(), removeDoubleAndSingletonsAndPerformDualpresolve(), removeZeros(), removeZerosQuad(), reuseSolution(), sampleRandomPoints(), SCIP_DECL_BRANCHEXITSOL(), SCIP_DECL_CONCSOLVERCOPYSOLVINGDATA(), SCIP_DECL_CONSINITSOL(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_EVENTEXITSOL(), SCIP_DECL_EVENTINIT(), SCIP_DECL_EVENTINITSOL(), SCIP_DECL_HEUREXEC(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_RELAXEXEC(), SCIP_DECL_SEPAEXECLP(), SCIPaggrRowAddObjectiveFunction(), SCIPaggrRowPrint(), SCIPassignDecompLinkConss(), SCIPbendersMergeSubproblemIntoMaster(), SCIPbendersSetupSubproblem(), SCIPcreateNlpiProblemFromNlRows(), SCIPcutGenerationHeuristicCMIR(), SCIPcutsTightenCoefficients(), SCIPgenerateAndApplyBendersOptCut(), SCIPgetVarStrongbranchWithPropagation(), SCIPmatrixCreate(), SCIPpropagateProbing(), SCIPselectVarStrongBranching(), SCIPseparateRelaxedKnapsack(), SCIPsnprintfProbingStats(), SCIPtransformDecompstore(), separateCuts(), setupAndSolve(), setupAndSolveSubscipMutation(), setupSubproblem(), setupSubScip(), tarjan(), tcliquegraphAddCliqueVars(), transformNonIntegralRow(), updateFirstRow(), updateFirstRowGlobal(), and updateSubproblemLowerbound().

◆ SCIPgetNVars()

int SCIPgetNVars ( SCIP * scip )

gets number of active problem variables

Returns: the number of active problem variables

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure

Definition at line 1992 of file scip_prob.c.

References FALSE, SCIP_Prob::nvars, Scip::origprob, SCIP_CALL_ABORT, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_EXITSOLVE, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_INITSOLVE, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIPABORT, SCIPcheckStage(), SCIPerrorMessage, Scip::set, SCIP_Set::stage, Scip::transprob, and TRUE.

Referenced by addFixedVarsConss(), addLowerboundCons(), addProductVars(), addScenarioVarsAndConsToProb(), addSymmetryInformation(), aggregateNextRow(), alnsUnfixVariables(), applyCompletesol(), applyHeur(), applyNlobbt(), applyProbing(), applyVbounds(), blockCreateSubscip(), branch(), branching(), branchingIntegralOrNonlinear(), branchruledataEnsureArraySize(), branchruledataEnsureNlcount(), buildConvexCombination(), buildMod2Matrix(), calcNlscore(), checkFixingrate(), checkIISlocal(), checkSolution(), checkSubproblemConvexity(), checkSymmetriesAreSymmetries(), checkSystemGF2(), collectBranchingCandidates(), collectBranchingCands(), componentSetupWorkingSol(), computeCut(), computeGradient(), computeInteriorPoint(), computeNogoodCut(), computeStandardIntegerOptCut(), computeStandardLPFeasibilityCut(), computeStandardLPOptimalityCut(), computeSymmetryGroup(), constructCompression(), copyProb(), copyVars(), correctConshdlrdata(), countSparseSol(), createAndSplitProblem(), createAuxiliaryNonlinearSubproblem(), createBlockproblem(), createMasterVarMapping(), createNLP(), createObjRow(), createReaderdata(), createSepaData(), createSubproblem(), createSubSCIP(), createTcliqueGraph(), createVariableMappings(), cutsRoundMIR(), cutsRoundStrongCG(), cutsTransformMIR(), cutsTransformStrongCG(), cutTightenCoefs(), cutTightenCoefsQuad(), DECL_NHINIT(), decompHorizonInitialize(), detectHiddenProducts(), detectMinors(), determineSymmetry(), dfs(), doCopy(), doSolveSubMIP(), estimateSymgraphSize(), execRelpscost(), fillDigraph(), fillVariableGraph(), filterExistingLP(), findComponents(), generateAndApplyBendersCuts(), generateCloseCutPoint(), generateClusterCuts(), generateZerohalfCut(), getDecompVarsConssData(), getFactorizedBinaryQuadraticExpr(), getMaxactImplicObjchg(), getMinsize(), getRelDistance(), getVarbufSize(), heurdataEnsureArraySize(), heurdataFreeArrays(), heurExec(), improvePoint(), initAlternativeLP(), initConcsolver(), initData(), initImplGraphSOS1(), initOrbits(), initProblem(), initPropdata(), insertZerolist(), LNSUnfixVariables(), mod2MatrixTransformContRows(), performDualfix(), performFixing(), preprocessCliques(), presolRoundVarsSOS1(), presolve(), presolveBinaryProducts(), printLongStatistics(), projectVbd(), propagateAllConss(), propdataInit(), readCoefficients(), readOPBFile(), reinitBandit(), removeConstraintsDueToNegCliques(), removeDoubleAndSingletonsAndPerformDualpresolve(), removeRedundantConssAndNonzeros(), reoptimize(), reuseSolution(), sampleRandomPoints(), SCIP_DECL_BENDERSCUTEXEC(), SCIP_DECL_BRANCHEXITSOL(), SCIP_DECL_CONCSOLVERCOPYSOLVINGDATA(), SCIP_DECL_CONSCHECK(), SCIP_DECL_CONSGETPERMSYMGRAPH(), SCIP_DECL_CONSGETSIGNEDPERMSYMGRAPH(), SCIP_DECL_CONSINIT(), SCIP_DECL_CONSINITPRE(), SCIP_DECL_CONSINITSOL(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_CONSPROP(), SCIP_DECL_CUTSELSELECT(), SCIP_DECL_DISPOUTPUT(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_EVENTEXITSOL(), SCIP_DECL_EVENTINIT(), SCIP_DECL_EVENTINITSOL(), SCIP_DECL_HEUREXEC(), SCIP_DECL_HEURINITSOL(), SCIP_DECL_NLHDLRDETECT(), SCIP_DECL_NLHDLRENFO(), SCIP_DECL_PARAMCHGD(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_PRICERREDCOST(), SCIP_DECL_RELAXEXEC(), SCIP_DECL_SEPAEXECLP(), SCIP_DECL_SEPAEXECSOL(), SCIPaddNlpiProblemRows(), SCIPaggrRowAddObjectiveFunction(), SCIPaggrRowCopy(), SCIPaggrRowCreate(), SCIPaggrRowFree(), SCIPassignDecompLinkConss(), SCIPbendersMergeSubproblemIntoMaster(), SCIPbendersSetupSubproblem(), SCIPcalcFlowCover(), SCIPcalcKnapsackCover(), SCIPcalcMIR(), SCIPcalcStrongCG(), SCIPcleanupConssLogicor(), SCIPconcsolverCreateInstance(), SCIPcopyConflicts(), SCIPcopyConss(), SCIPcopyOrigConss(), SCIPcreateNlpiProblemFromNlRows(), SCIPcutGenerationHeuristicCMIR(), SCIPcutsTightenCoefficients(), SCIPgenerateAndApplyBendersOptCut(), SCIPgetConsCopy(), SCIPgetVarCopy(), SCIPgetVarStrongbranchWithPropagation(), SCIPincludePresolMILP(), SCIPmatrixCreate(), SCIPparseExpr(), SCIPperformGenericDivingAlgorithm(), SCIPpropagateProbing(), SCIPselectVarStrongBranching(), SCIPseparateRelaxedKnapsack(), SCIPsnprintfProbingStats(), SCIPsyncstoreInit(), SCIPtransformDecompstore(), SCIPtransformProb(), SCIPvariableGraphCreate(), SCIPvariableGraphFree(), selectVarRecursive(), separateCuts(), separatePerspective(), separatePoint(), setSymmetryData(), setupAndSolve(), setupAndSolveSubscip(), setupAndSolveSubscipMutation(), setupAndSolveSubscipOneopt(), setUpEvents(), setupProbingSCIP(), setupSubproblem(), setupSubScip(), shortenConss(), solveIndependentCons(), solveSubNLP(), storeVarExprs(), subscipdataCopySubscip(), tarjan(), topologicalSort(), tryAdd2variableBuffer(), updateFirstRow(), updateFirstRowGlobal(), updateSubproblemLowerbound(), and wrapperDins().

◆ SCIPgetNBinVars()

int SCIPgetNBinVars ( SCIP * scip )

gets number of binary active problem variables

Returns: the number of binary active problem variables

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure

Definition at line 2037 of file scip_prob.c.

References FALSE, SCIP_Prob::nbinvars, Scip::origprob, SCIP_CALL_ABORT, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_EXITSOLVE, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_INITSOLVE, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIPABORT, SCIPcheckStage(), SCIPerrorMessage, Scip::set, SCIP_Set::stage, Scip::transprob, and TRUE.

Referenced by addLocalBranchingConstraint(), aggregateNextRow(), alnsUnfixVariables(), applyCliqueFixings(), applyProbing(), blockCreateSubscip(), branchingIntegralFirst(), branchingIntegralOrNonlinear(), checkConsQuadraticProblem(), checkFixingrate(), checkGlobalProperties(), computeSymmetryGroup(), constructCompression(), constructSNFRelaxation(), copyVars(), countSparseSol(), createSubSCIP(), createSubscip(), cutsTransformKnapsackCover(), DECL_CHANGESUBSCIP(), DECL_NHDEACTIVATE(), DECL_VARFIXINGS(), detectHiddenProducts(), determineSymmetry(), determineVariableFixingsDecomp(), dualPresolve(), extendToCover(), fixMatchingSolutionValues(), freePersistent(), getClosestVlb(), getClosestVub(), getReward(), heurExec(), initBranchruleData(), LNSUnfixVariables(), loadTcliquegraph(), mergeMultiples(), neighborhoodFixVariables(), preprocessCliques(), presolveBinaryProducts(), presolveImplint(), printLongStatistics(), propdataInit(), removeDoubleAndSingletonsAndPerformDualpresolve(), rollingHorizonRunAgain(), SCIP_DECL_BENDERSCUTEXEC(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_BRANCHINIT(), SCIP_DECL_CONSINITSOL(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_EVENTINITSOL(), SCIP_DECL_HEUREXEC(), SCIP_DECL_HEURINITSOL(), SCIP_DECL_NLHDLRDETECT(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_SEPAEXECSOL(), SCIPapplyProximity(), SCIPapplyRens(), SCIPperformGenericDivingAlgorithm(), SCIPsnprintfProbingStats(), SCIPsolve(), separateCuts(), separateOddCycles(), setupAndSolve(), tcliquegraphAddCliqueVars(), tcliquegraphAddNode(), tcliquegraphCreate(), testSymmetryComputationRequired(), upgradeConss(), and wrapperDins().

◆ SCIPgetNIntVars()

int SCIPgetNIntVars ( SCIP * scip )

gets number of integer active problem variables

Returns: the number of integer active problem variables

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure

Definition at line 2082 of file scip_prob.c.

References FALSE, SCIP_Prob::nintvars, Scip::origprob, SCIP_CALL_ABORT, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_EXITSOLVE, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_INITSOLVE, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIPABORT, SCIPcheckStage(), SCIPerrorMessage, Scip::set, SCIP_Set::stage, Scip::transprob, and TRUE.

Referenced by aggregateNextRow(), alnsUnfixVariables(), applyProbing(), blockCreateSubscip(), branchingIntegralFirst(), branchingIntegralOrNonlinear(), checkConsQuadraticProblem(), checkFixingrate(), checkGlobalProperties(), constructCompression(), copyVars(), createSubSCIP(), createSubscip(), DECL_NHDEACTIVATE(), DECL_VARFIXINGS(), determineSymmetry(), determineVariableFixingsDecomp(), extendToCover(), freePersistent(), getReward(), initBranchruleData(), LNSUnfixVariables(), mergeMultiples(), neighborhoodFixVariables(), presolveImplint(), prettifyConss(), printLongStatistics(), removeDoubleAndSingletonsAndPerformDualpresolve(), rollingHorizonRunAgain(), runBenders(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_BRANCHINIT(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_EVENTINITSOL(), SCIP_DECL_HEUREXEC(), SCIP_DECL_PRESOLEXEC(), SCIPapplyRens(), SCIPperformGenericDivingAlgorithm(), SCIPsnprintfProbingStats(), SCIPsolve(), separateCuts(), setupAndSolve(), testSymmetryComputationRequired(), and wrapperDins().

◆ SCIPgetNImplVars()

int SCIPgetNImplVars ( SCIP * scip )

gets number of implicit integer active problem variables

Returns: the number of implicit integer active problem variables

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure

Definition at line 2127 of file scip_prob.c.

References FALSE, SCIP_Prob::nimplvars, Scip::origprob, SCIP_CALL_ABORT, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_EXITSOLVE, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_INITSOLVE, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIPABORT, SCIPcheckStage(), SCIPerrorMessage, Scip::set, SCIP_Set::stage, Scip::transprob, and TRUE.

Referenced by aggregateNextRow(), applyProbing(), copyVars(), createSubscip(), decompHorizonInitialize(), determineSymmetry(), dualPresolve(), mergeMultiples(), prettifyConss(), printLongStatistics(), removeDoubleAndSingletonsAndPerformDualpresolve(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_PRESOLEXEC(), SCIPsnprintfProbingStats(), separateCuts(), setupAndSolve(), testSymmetryComputationRequired(), and upgradeConss().

◆ SCIPgetNContVars()

int SCIPgetNContVars ( SCIP * scip )

gets number of continuous active problem variables

Returns: the number of continuous active problem variables

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure

Definition at line 2172 of file scip_prob.c.

References FALSE, SCIP_Prob::ncontvars, Scip::origprob, SCIP_CALL_ABORT, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_EXITSOLVE, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_INITSOLVE, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIPABORT, SCIPcheckStage(), SCIPerrorMessage, Scip::set, SCIP_Set::stage, Scip::transprob, and TRUE.

Referenced by aggregateNextRow(), buildMod2Matrix(), copyVars(), createSubscip(), cutsRoundMIR(), cutsRoundStrongCG(), cutsTransformMIR(), cutsTransformStrongCG(), cutTightenCoefs(), cutTightenCoefsQuad(), decompHorizonInitialize(), determineSymmetry(), getMaxactImplicObjchg(), insertZerolist(), presolveImplint(), printLongStatistics(), removeConstraintsDueToNegCliques(), removeDoubleAndSingletonsAndPerformDualpresolve(), removeRedundantConssAndNonzeros(), SCIP_DECL_CONSINIT(), SCIP_DECL_CONSINITSOL(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_SEPAEXECLP(), SCIPcalcStrongCG(), SCIPcleanupConssLogicor(), SCIPcutGenerationHeuristicCMIR(), SCIPcutsTightenCoefficients(), SCIPpermuteProb(), SCIPseparateRelaxedKnapsack(), separateCuts(), setupAndSolve(), shortenConss(), tarjan(), testSymmetryComputationRequired(), and tightenVariables().

◆ SCIPgetNObjVars()

int SCIPgetNObjVars ( SCIP * scip )

gets number of active problem variables with a non-zero objective coefficient

Note: In case of the original problem the number of variables is counted. In case of the transformed problem the number of variables is just returned since it is stored internally

Returns: the number of active problem variables with a non-zero objective coefficient

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure

Definition at line 2220 of file scip_prob.c.

References FALSE, Scip::origprob, SCIP_CALL_ABORT, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_INITSOLVE, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIPABORT, SCIPcheckStage(), SCIPerrorMessage, SCIPprobGetNObjVars(), Scip::set, SCIP_Set::stage, Scip::transprob, and TRUE.

Referenced by checkConsQuadraticProblem(), checkDivingCandidates(), createSubscip(), DECL_CHANGESUBSCIP(), DECL_NHDEACTIVATE(), SCIP_DECL_HEUREXEC(), scoreBranchingCandidates(), setupAndSolveSubscip(), and setupSubproblem().

◆ SCIPgetFixedVars()

SCIP_VAR** SCIPgetFixedVars ( SCIP * scip )

gets array with fixed and aggregated problem variables; data may become invalid after calls to SCIPfixVar(), SCIPaggregateVars(), and SCIPmultiaggregateVar()

Returns: an array with fixed and aggregated problem variables; data may become invalid after calls to SCIPfixVar(), SCIPaggregateVars(), and SCIPmultiaggregateVar()

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure

Definition at line 2266 of file scip_prob.c.

References FALSE, SCIP_Prob::fixedvars, NULL, SCIP_CALL_ABORT, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_INITSOLVE, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIPABORT, SCIPcheckStage(), SCIPerrorMessage, Scip::set, SCIP_Set::stage, Scip::transprob, and TRUE.

Referenced by computeStandardLPOptimalityCut(), computeStandardNLPOptimalityCut(), copyVars(), correctConshdlrdata(), exitPresolve(), SCIP_DECL_DIALOGEXEC(), SCIPcreateFiniteSolCopy(), selectVarMultAggrBranching(), and updateConsanddataUses().

◆ SCIPgetNFixedVars()

int SCIPgetNFixedVars ( SCIP * scip )

gets number of fixed or aggregated problem variables

Returns: the number of fixed or aggregated problem variables

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure

Definition at line 2309 of file scip_prob.c.

References FALSE, SCIP_Prob::nfixedvars, SCIP_CALL_ABORT, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_INITSOLVE, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIPABORT, SCIPcheckStage(), SCIPerrorMessage, Scip::set, SCIP_Set::stage, Scip::transprob, and TRUE.

Referenced by computeStandardLPOptimalityCut(), computeStandardNLPOptimalityCut(), copyVars(), correctConshdlrdata(), exitPresolve(), generateAndApplyBendersCuts(), SCIP_DECL_CONSINITSOL(), SCIP_DECL_DIALOGEXEC(), SCIPapplyProximity(), SCIPcreateFiniteSolCopy(), SCIPgenerateAndApplyBendersOptCut(), selectVarMultAggrBranching(), setUpEvents(), and updateConsanddataUses().

◆ SCIPgetOrigVarsData()

SCIP_RETCODE SCIPgetOrigVarsData	(	SCIP *	scip,
		SCIP_VAR ***	vars,
		int *	nvars,
		int *	nbinvars,
		int *	nintvars,
		int *	nimplvars,
		int *	ncontvars
	)

gets variables of the original problem along with the numbers of different variable types; data may become invalid after a call to SCIPchgVarType()

Returns: SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See SCIP_RETCODE for a complete list of error codes.

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure
vars	pointer to store variables array or NULL if not needed
nvars	pointer to store number of variables or NULL if not needed
nbinvars	pointer to store number of binary variables or NULL if not needed
nintvars	pointer to store number of integer variables or NULL if not needed
nimplvars	pointer to store number of implicit integral vars or NULL if not needed
ncontvars	pointer to store number of continuous variables or NULL if not needed

Definition at line 2357 of file scip_prob.c.

References FALSE, SCIP_Prob::nbinvars, SCIP_Prob::ncontvars, SCIP_Prob::nimplvars, SCIP_Prob::nintvars, NULL, SCIP_Prob::nvars, Scip::origprob, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), TRUE, and SCIP_Prob::vars.

Referenced by copyVars(), createSolFromNLP(), createSolFromSubScipSol(), forbidFixation(), freeMemory(), freeSubSCIP(), runBenders(), SCIP_DECL_CONSLOCK(), SCIP_DECL_READERREAD(), SCIPapplyHeurDualval(), SCIPapplyHeurSubNlp(), and SCIPcreateFiniteSolCopy().

◆ SCIPgetOrigVars()

SCIP_VAR** SCIPgetOrigVars ( SCIP * scip )

gets array with original problem variables; data may become invalid after a call to SCIPchgVarType()

Returns: an array with original problem variables; data may become invalid after a call to SCIPchgVarType()

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure

Definition at line 2405 of file scip_prob.c.

References FALSE, Scip::origprob, SCIP_CALL_ABORT, SCIPcheckStage(), TRUE, and SCIP_Prob::vars.

Referenced by blockCreateSubscip(), createSolFromSubScipSol(), createSubSCIP(), getDecompVarsConssData(), initializeSol(), maximalslack(), reoptimize(), SCIP_DECL_CONSCHECK(), SCIP_DECL_CONSINIT(), SCIP_DECL_CONSINITSOL(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_HEUREXEC(), SCIPapplyHeurDualval(), SCIPassignDecompLinkConss(), solveClassification(), and solveMinIISC().

◆ SCIPgetNOrigVars()

int SCIPgetNOrigVars ( SCIP * scip )

gets number of original problem variables

Returns: the number of original problem variables

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure

Definition at line 2432 of file scip_prob.c.

References FALSE, SCIP_Prob::nvars, Scip::origprob, SCIP_CALL_ABORT, SCIPcheckStage(), and TRUE.

Referenced by blockCreateSubscip(), componentSetupWorkingSol(), constructCompression(), copyToSubscip(), createSolFromNLP(), createSolFromSubScipSol(), createSubSCIP(), getDecompVarsConssData(), getVarbufSize(), initializeSol(), maximalslack(), printLongStatistics(), reoptimize(), runBenders(), SCIP_DECL_CONSCHECK(), SCIP_DECL_CONSINIT(), SCIP_DECL_CONSINITSOL(), SCIP_DECL_CONSTRANS(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_EVENTINIT(), SCIP_DECL_HEUREXEC(), SCIPcreateConcurrent(), SCIPcreateConsIndicatorGeneric(), SCIPcreateConsIndicatorGenericLinConsPure(), SCIPfreeConcurrent(), SCIPgetConcurrentVaridx(), SCIPreoptFree(), setupAndSolveSubscip(), solveClassification(), solveCoveringProblem(), and solveMinIISC().

◆ SCIPgetNOrigBinVars()

int SCIPgetNOrigBinVars ( SCIP * scip )

gets number of binary variables in the original problem

Returns: the number of binary variables in the original problem

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure

Definition at line 2459 of file scip_prob.c.

References FALSE, SCIP_Prob::nbinvars, Scip::origprob, SCIP_CALL_ABORT, SCIPcheckStage(), and TRUE.

Referenced by blockCreateSubscip(), solveClassification(), and solveMinIISC().

◆ SCIPgetNOrigIntVars()

int SCIPgetNOrigIntVars ( SCIP * scip )

gets the number of integer variables in the original problem

Returns: the number of integer variables in the original problem

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure

Definition at line 2486 of file scip_prob.c.

References FALSE, SCIP_Prob::nintvars, Scip::origprob, SCIP_CALL_ABORT, SCIPcheckStage(), and TRUE.

Referenced by blockCreateSubscip(), solveClassification(), and solveMinIISC().

◆ SCIPgetNOrigImplVars()

int SCIPgetNOrigImplVars ( SCIP * scip )

gets number of implicit integer variables in the original problem

Returns: the number of implicit integer variables in the original problem

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure

Definition at line 2513 of file scip_prob.c.

References FALSE, SCIP_Prob::nimplvars, Scip::origprob, SCIP_CALL_ABORT, SCIPcheckStage(), and TRUE.

◆ SCIPgetNOrigContVars()

int SCIPgetNOrigContVars ( SCIP * scip )

gets number of continuous variables in the original problem

Returns: the number of continuous variables in the original problem

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure

Definition at line 2540 of file scip_prob.c.

References FALSE, SCIP_Prob::ncontvars, Scip::origprob, SCIP_CALL_ABORT, SCIPcheckStage(), and TRUE.

◆ SCIPgetNTotalVars()

int SCIPgetNTotalVars ( SCIP * scip )

gets number of all problem variables created during creation and solving of problem; this includes also variables that were deleted in the meantime

Returns: the number of all problem variables created during creation and solving of problem; this includes also variables that were deleted in the meantime

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure

Definition at line 2569 of file scip_prob.c.

References FALSE, NULL, SCIP_Stat::nvaridx, SCIP_CALL_ABORT, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_EXITSOLVE, SCIP_STAGE_FREETRANS, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_INITSOLVE, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIP_STAGE_TRANSFORMING, SCIPABORT, SCIPcheckStage(), SCIPerrorMessage, Scip::set, SCIP_Set::stage, Scip::stat, and TRUE.

Referenced by addVarCardinality(), appendVarCardinality(), getFactorizedBinaryQuadraticExpr(), initConflictgraph(), SCIP_DECL_CONSACTIVE(), SCIP_DECL_CONSPROP(), SCIPcreateConsCardinality(), SCIPisPackingPartitioningOrbitope(), SCIPwriteLp(), and SCIPwritePip().

◆ SCIPgetSolVarsData()

SCIP_RETCODE SCIPgetSolVarsData	(	SCIP *	scip,
		SCIP_SOL *	sol,
		SCIP_VAR ***	vars,
		int *	nvars,
		int *	nbinvars,
		int *	nintvars,
		int *	nimplvars,
		int *	ncontvars
	)

gets variables of the original or transformed problem along with the numbers of different variable types; the returned problem space (original or transformed) corresponds to the given solution; data may become invalid after calls to SCIPchgVarType(), SCIPfixVar(), SCIPaggregateVars(), and SCIPmultiaggregateVar()

Returns: SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See SCIP_RETCODE for a complete list of error codes.

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure
sol	primal solution that selects the problem space, NULL for current solution
vars	pointer to store variables array or NULL if not needed
nvars	pointer to store number of variables or NULL if not needed
nbinvars	pointer to store number of binary variables or NULL if not needed
nintvars	pointer to store number of integer variables or NULL if not needed
nimplvars	pointer to store number of implicit integral vars or NULL if not needed
ncontvars	pointer to store number of continuous variables or NULL if not needed

Definition at line 2620 of file scip_prob.c.

References FALSE, SCIP_Prob::nbinvars, SCIP_Prob::ncontvars, SCIP_Prob::nimplvars, SCIP_Prob::nintvars, NULL, SCIP_Prob::nvars, Scip::origprob, SCIP_CALL, SCIP_OKAY, SCIP_STAGE_PROBLEM, SCIPcheckStage(), SCIPsolIsOriginal(), Scip::set, SCIP_Set::stage, Scip::transprob, TRUE, and SCIP_Prob::vars.

Referenced by SCIP_DECL_CONSCHECK(), and SCIP_DECL_CONSGETDIVEBDCHGS().

◆ SCIPfindVar()

SCIP_VAR* SCIPfindVar	(	SCIP *	scip,
		const char *	name
	)

returns variable of given name in the problem, or NULL if not existing

Returns: variable of given name in the problem, or NULL if not existing

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure
name	name of variable to find

Definition at line 2685 of file scip_prob.c.

References FALSE, NULL, Scip::origprob, SCIP_CALL_ABORT, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_EXITSOLVE, SCIP_STAGE_FREETRANS, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_INITSOLVE, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIP_STAGE_TRANSFORMING, SCIPABORT, SCIPcheckStage(), SCIPerrorMessage, SCIPprobFindVar(), Scip::set, SCIP_Set::stage, Scip::transprob, and TRUE.

Referenced by addScenarioVarsAndConsToProb(), addVariableToStage(), assignAuxiliaryVariables(), constructCompression(), createVariableMappings(), findScenarioVar(), getScenarioDecompVar(), getVariable(), getVariableOrTerm(), initCurrent(), readBounds(), readCols(), readIndicators(), readQCMatrix(), readQMatrix(), readSol(), readSolFile(), readSOS(), readSos(), readXmlSolFile(), reoptimize(), SCIP_DECL_CONSPARSE(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_HEUREXEC(), and SCIPparseVarName().

◆ SCIPallVarsInProb()

SCIP_Bool SCIPallVarsInProb ( SCIP * scip )

returns TRUE iff all potential variables exist in the problem, and FALSE, if there may be additional variables, that will be added in pricing and improve the objective value

Returns: TRUE, if all potential variables exist in the problem; FALSE, otherwise

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure

Definition at line 2743 of file scip_prob.c.

References FALSE, SCIP_Set::nactivepricers, SCIP_CALL_ABORT, SCIPcheckStage(), Scip::set, and TRUE.

Referenced by createObjRow().

◆ SCIPaddCons()

SCIP_RETCODE SCIPaddCons	(	SCIP *	scip,
		SCIP_CONS *	cons
	)

adds constraint to the problem; if constraint is only valid locally, it is added to the local subproblem of the current node (and all of its subnodes); otherwise it is added to the global problem; if a local constraint is added at the root node, it is automatically upgraded into a global constraint

Returns: SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See SCIP_RETCODE for a complete list of error codes.

Precondition

This method can be called if scip is in one of the following stages:

adds constraint to the problem; if constraint is only valid locally, it is added to the local subproblem of the current node (and all of its subnodes); otherwise it is added to the global problem; if a local constraint is added at the root node, it is automatically upgraded into a global constraint

Returns: SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See SCIP_RETCODE for a complete list of error codes.

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure
cons	constraint to add

Definition at line 2770 of file scip_prob.c.

References FALSE, Scip::mem, NULL, Scip::origprob, SCIP_Mem::probmem, Scip::reopt, SCIP_Set::reopt_enable, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_EXITSOLVE, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_INITSOLVE, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIPcheckStage(), SCIPconsIsGlobal(), SCIPconsSetLocal(), SCIPerrorMessage, SCIPnodeAddCons(), SCIPprobAddCons(), SCIPreoptAddCons(), SCIPtreeGetCurrentDepth(), SCIPtreeGetCurrentNode(), SCIPtreeGetEffectiveRootDepth(), Scip::set, SCIP_Set::stage, Scip::stat, Scip::transprob, Scip::tree, and TRUE.

Referenced by addBranchingDecisionConss(), addCliques(), addConstraintToBendersSubproblem(), addExtendedAsymmetricFormulation(), addExtendedFlowFormulation(), addExtraCliques(), addFixedVarsConss(), addLocalBranchingConstraint(), addLocalbranchingConstraintAndObjcutoff(), addLowerboundCons(), addOrbitopesDynamic(), addOrbitopeSubgroup(), addScenarioConsToProb(), addSSTConssOrbitAndUpdateSST(), addStrongSBCsSubgroup(), addSymresackConss(), addTrustRegionConstraints(), addWeakSBCsSubgroup(), adjustOversizedJobBounds(), aggregation(), applyFixings(), applyRepair(), BENDERS_CUTORACLE(), cancelRow(), cliquePresolve(), COLORprobSetUpArrayOfCons(), componentPackingPartitioningOrbisackUpgrade(), consdataCollectLinkingCons(), consdataLinearize(), copyCuts(), copyToSubscip(), CREATE_CONSTRAINT(), createAndAddAndCons(), createAndAddLinearCons(), createAndAddTransferredCut(), createAndApplyStoredBendersCut(), createBlockproblem(), createBounddisjunctionCons(), createCapacityRestriction(), createCipFormulation(), createConflict(), createConflictCons(), createConsCumulative(), createConstraint(), createConstraints(), createCoveringProblem(), createCumulativeCons(), createIndicatorConstraint(), createIntervalRelaxation(), createKKTComplementarityBinary(), createKKTComplementarityBounds(), createKKTComplementarityLinear(), createLinearCons(), createMasterproblem(), createMIP(), createMipCpFormulation(), createMipFormulation(), createOriginalproblem(), createPrecedenceCons(), createProbOnlyEdge(), createProbQP(), createProbSimplified(), createProbSimplifiedTest(), createQuadraticCons(), createRow(), createRows(), createSetPackingCons(), createSubproblem(), createSubproblems(), createSubSCIP(), createSubscip(), createVarboundCons(), createVarUbs(), CUTOFF_CONSTRAINT(), deleteRedundantVars(), detectAndHandleSubgroups(), detectRedundantVars(), dualPresolve(), dualWeightsTightening(), AMPLProblemHandler::EndInput(), execmain(), extendToCover(), extensionOperatorSOS1(), extractGates(), findAggregation(), fixDeleteOrUpgradeCons(), forbidCover(), forbidFixation(), generateAndApplyBendersCuts(), generateAndApplyBendersIntegerCuts(), generateAndApplyBendersNogoodCut(), getBinaryProductExprDo(), getConstraint(), getFixedVariable(), handleDoublelLexMatrix(), handleOrbitope(), infinityCountUpdate(), initPricing(), main(), AMPLProblemHandler::OnBinaryLogical(), AMPLProblemHandler::OnLogicalCon(), AMPLProblemHandler::OnRelational(), performImplicationGraphAnalysis(), preprocessConstraintPairs(), presolRoundCardinality(), presolRoundConsSOS1(), presolveSingleLockedVars(), presolveUpgrade(), processNlRow(), processRealBoundChg(), propIndicator(), scipexamples::QueensSolver::QueensSolver(), readBounds(), readCnf(), readConstraints(), readIndicators(), readLIBSVM(), readObjective(), readOPBFile(), readQCMatrix(), readQMatrix(), readRows(), readSemicontinuous(), readSOS(), readSos(), readSOScons(), readVariables(), reformulateFactorizedBinaryQuadratic(), removeConstraintsDueToNegCliques(), SCIP_DECL_CONSCOPY(), SCIP_DECL_CONSINITLP(), SCIP_DECL_CONSINITPRE(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_READERREAD(), SCIP_DECL_SOLVECUMULATIVE(), SCIPaddConflict(), SCIPaddTrustregionNeighborhoodConstraint(), SCIPapplyProximity(), SCIPbendersMergeSubproblemIntoMaster(), SCIPcopyConflicts(), SCIPcopyConss(), SCIPcopyOrigConss(), SCIPcreateConsIndicatorGeneric(), SCIPcreateSchedulingProblem(), SCIPgenerateAndApplyBendersOptCut(), SCIPgetVarCopy(), SCIPincludePresolMILP(), SCIPprobdataCreate(), SCIPreoptApplyGlbConss(), SCIPtransformMinUC(), SCIPverifyCircularPatternNLP(), setObjective(), setupAndSolveCumulativeSubscip(), setupAndSolveFiniteSolSubscip(), setupAndSolveSubscip(), setupProblem(), setupSubproblem(), setupSubScip(), solvePricingMINLP(), tightenWeights(), tryUpgradingLogicor(), tryUpgradingSetppc(), tryUpgradingXor(), upgradeCons(), upgradeConss(), upgradeIndicatorSuperindicator(), and upgradeLinearSuperindicator().

◆ SCIPdelCons()

SCIP_RETCODE SCIPdelCons	(	SCIP *	scip,
		SCIP_CONS *	cons
	)

globally removes constraint from all subproblems; removes constraint from the constraint set change data of the node, where it was added, or from the problem, if it was a problem constraint

Returns: SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See SCIP_RETCODE for a complete list of error codes.

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure
cons	constraint to delete

Definition at line 2843 of file scip_prob.c.

References SCIP_Cons::addconssetchg, FALSE, Scip::mem, NULL, Scip::origprob, SCIP_Mem::probmem, Scip::reopt, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_EXITSOLVE, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_INITSOLVE, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVING, SCIPcheckStage(), SCIPconsDelete(), SCIPconsIsAdded(), SCIPerrorMessage, Scip::set, SCIP_Set::stage, Scip::stat, Scip::transprob, and TRUE.

Referenced by applyFixings(), cancelRow(), canonicalizeConstraints(), checkForOverlapping(), cliquePresolve(), computeEffectiveHorizon(), consdataLinearize(), correctConshdlrdata(), createSubSCIP(), createVarUbs(), deleteTrivilCons(), detectRedundantConstraints(), disableCons(), dualPresolve(), dualPresolving(), dualWeightsTightening(), executeStrongBranching(), extractGates(), findAggregation(), fixDeleteOrUpgradeCons(), liftCliqueVariables(), mergeMultiples(), prepareCons(), preprocessConstraintPairs(), presolRoundCardinality(), presolRoundConsSOS1(), presolRoundConssSOS1(), presolRoundIndicator(), presolRoundSOS2(), presolveAddKKTKnapsackConss(), presolveAddKKTLinearConss(), presolveAddKKTLogicorConss(), presolveAddKKTSetppcConss(), presolveAddKKTVarboundConss(), presolveMergeConss(), presolvePropagateCons(), presolveUpgrade(), propagateCons(), readQCMatrix(), removeConstraintsDueToNegCliques(), removeCoreVariablesAndConstraints(), removeDoubleAndSingletonsAndPerformDualpresolve(), removeRedundantCons(), removeRedundantConss(), removeRedundantNonZeros(), removeVariablesAndConstraintsFromMaster(), SCIP_DECL_CONSENABLE(), SCIP_DECL_CONSEXITPRE(), SCIP_DECL_CONSINITPRE(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_PRESOLEXEC(), SCIPcleanupConssLogicor(), SCIPincludePresolMILP(), SCIPmatrixCreate(), SCIPsetLinearConsIndicator(), SCIPtransformMinUC(), shortenConss(), solveAndEvalSubscip(), tightenCoefs(), tightenWeights(), tryUpgrading(), tryUpgradingLogicor(), tryUpgradingSetppc(), tryUpgradingXor(), updateConsanddataUses(), upgradeCons(), upgradeConss(), upgradeIndicatorSuperindicator(), and upgradeLinearSuperindicator().

◆ SCIPfindOrigCons()

SCIP_CONS* SCIPfindOrigCons	(	SCIP *	scip,
		const char *	name
	)

returns original constraint of given name in the problem, or NULL if not existing

Returns: original constraint of given name in the problem, or NULL if not existing

Precondition

This method can be called if scip is in one of the following stages:

returns original constraint of given name in the problem, or NULL if not existing

Returns: original constraint of given name in the problem, or NULL if not existing

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure
name	name of constraint to find

Definition at line 2898 of file scip_prob.c.

References FALSE, NULL, Scip::origprob, SCIP_CALL_ABORT, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_EXITSOLVE, SCIP_STAGE_FREETRANS, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIP_STAGE_TRANSFORMING, SCIPABORT, SCIPcheckStage(), SCIPerrorMessage, SCIPprobFindCons(), Scip::set, SCIP_Set::stage, and TRUE.

◆ SCIPfindCons()

SCIP_CONS* SCIPfindCons	(	SCIP *	scip,
		const char *	name
	)

returns constraint of given name in the problem, or NULL if not existing

Returns: constraint of given name in the problem, or NULL if not existing

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure
name	name of constraint to find

Definition at line 2947 of file scip_prob.c.

References FALSE, NULL, Scip::origprob, SCIP_CALL_ABORT, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_EXITSOLVE, SCIP_STAGE_FREETRANS, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIP_STAGE_TRANSFORMING, SCIPABORT, SCIPcheckStage(), SCIPerrorMessage, SCIPprobFindCons(), Scip::set, SCIP_Set::stage, Scip::transprob, and TRUE.

Referenced by addConstraintToStage(), addScenarioVarsAndConsToProb(), readCols(), readDecomposition(), readIndicators(), readQCMatrix(), readRanges(), readRhs(), readRows(), SCIP_DECL_CONSPARSE(), and writeOpbObjective().

◆ SCIPgetNUpgrConss()

int SCIPgetNUpgrConss ( SCIP * scip )

gets number of upgraded constraints

Returns: number of upgraded constraints

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure

Definition at line 3000 of file scip_prob.c.

References FALSE, SCIP_Stat::npresolupgdconss, SCIP_CALL_ABORT, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIPABORT, SCIPcheckStage(), SCIPerrorMessage, Scip::set, SCIP_Set::stage, Scip::stat, and TRUE.

◆ SCIPgetNConss()

int SCIPgetNConss ( SCIP * scip )

gets total number of globally valid constraints currently in the problem

Returns: total number of globally valid constraints currently in the problem

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure

Definition at line 3042 of file scip_prob.c.

References FALSE, SCIP_Prob::nconss, Scip::origprob, SCIP_CALL_ABORT, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_INITSOLVE, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIPABORT, SCIPcheckStage(), SCIPerrorMessage, Scip::set, SCIP_Set::stage, Scip::transprob, and TRUE.

Referenced by checkConsQuadraticProblem(), checkSymmetriesAreSymmetries(), computeSymmetryGroup(), copyProb(), copyVars(), createAltLP(), createSubSCIP(), detectAndHandleSubgroups(), doCopy(), estimateSymgraphSize(), fillVariableGraph(), findComponents(), getDecompVarsConssData(), getOriginalRows(), isFiniteNonnegativeIntegral(), presolve(), printLongStatistics(), readCoefficients(), readDecomposition(), SCIP_DECL_CONSINITSOL(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_CONSPROP(), SCIP_DECL_DISPOUTPUT(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_PARAMCHGD(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_RELAXEXEC(), SCIPapplyLockFixings(), SCIPapplyUndercover(), SCIPbendersApplyDecomposition(), SCIPbendersMergeSubproblemIntoMaster(), SCIPcopyConflicts(), SCIPcopyConss(), SCIPcopyOrigConss(), SCIPgetConsCopy(), SCIPgetVarCopy(), SCIPincludePresolMILP(), SCIPmatrixCreate(), SCIPtransformDecompstore(), SCIPtransformMinUC(), SCIPtransformProb(), SCIPvariableGraphCreate(), setupAndSolve(), setupAndSolveSubscip(), solveIndependentCons(), and wrapperDins().

◆ SCIPgetConss()

SCIP_CONS** SCIPgetConss ( SCIP * scip )

gets array of globally valid constraints currently in the problem

Returns: array of globally valid constraints currently in the problem

Precondition

This method can be called if scip is in one of the following stages:

Warning: If your are using the method SCIPaddCons(), it can happen that the internal constraint array (which is accessed via this method) gets resized. This can invalid the pointer which is returned by this method.

Parameters

scip	SCIP data structure

Definition at line 3088 of file scip_prob.c.

References SCIP_Prob::conss, FALSE, NULL, Scip::origprob, SCIP_CALL_ABORT, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_INITPRESOLVE, SCIP_STAGE_INITSOLVE, SCIP_STAGE_PRESOLVED, SCIP_STAGE_PRESOLVING, SCIP_STAGE_PROBLEM, SCIP_STAGE_SOLVED, SCIP_STAGE_SOLVING, SCIP_STAGE_TRANSFORMED, SCIPABORT, SCIPcheckStage(), SCIPerrorMessage, Scip::set, SCIP_Set::stage, Scip::transprob, and TRUE.

Referenced by checkSymmetriesAreSymmetries(), computeSymmetryGroup(), createAltLP(), estimateSymgraphSize(), fillVariableGraph(), findComponents(), getDecompVarsConssData(), getOriginalRows(), isFiniteNonnegativeIntegral(), readDecomposition(), SCIP_DECL_CONSINITSOL(), SCIP_DECL_HEUREXEC(), SCIP_DECL_PARAMCHGD(), SCIP_DECL_RELAXEXEC(), SCIPbendersApplyDecomposition(), SCIPbendersMergeSubproblemIntoMaster(), SCIPtransformDecompstore(), and SCIPtransformMinUC().

◆ SCIPgetNOrigConss()

int SCIPgetNOrigConss ( SCIP * scip )

gets total number of constraints in the original problem

Returns: total number of constraints in the original problem

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure

Definition at line 3134 of file scip_prob.c.

References FALSE, SCIP_Prob::nconss, Scip::origprob, SCIP_CALL_ABORT, SCIPcheckStage(), and TRUE.

Referenced by addSlackVarsToConstraints(), checkSubproblemConvexity(), computeAndConstraintInfos(), createSubSCIP(), getDecompVarsConssData(), printLongStatistics(), runBenders(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_HEUREXIT(), SCIP_DECL_READERREAD(), SCIPapplyHeurDualval(), and SCIPcopyOrigConss().

◆ SCIPgetOrigConss()

SCIP_CONS** SCIPgetOrigConss ( SCIP * scip )

gets array of constraints in the original problem

Returns: array of constraints in the original problem

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure

Definition at line 3161 of file scip_prob.c.

References SCIP_Prob::conss, FALSE, Scip::origprob, SCIP_CALL_ABORT, SCIPcheckStage(), and TRUE.

Referenced by addSlackVarsToConstraints(), checkSubproblemConvexity(), computeAndConstraintInfos(), createSubSCIP(), getDecompVarsConssData(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_HEUREXIT(), SCIPapplyHeurDualval(), and SCIPcopyOrigConss().

◆ SCIPgetNCheckConss()

int SCIPgetNCheckConss ( SCIP * scip )

computes the number of check constraint in the current node (loop over all constraint handler and cumulates the number of check constraints)

Returns: returns the number of check constraints

Precondition

This method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure

Definition at line 3184 of file scip_prob.c.

References FALSE, NULL, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPconshdlrGetNCheckConss(), SCIPgetConshdlrs(), SCIPgetNConshdlrs(), and TRUE.

Referenced by SCIPapplyLockFixings(), and solveIndependentCons().

SCIP

Detailed Description

Functions

Function Documentation

◆ SCIPcreateProb()

◆ SCIPcreateProbBasic()

◆ SCIPsetProbDelorig()

◆ SCIPsetProbTrans()

◆ SCIPsetProbDeltrans()

◆ SCIPsetProbInitsol()

◆ SCIPsetProbExitsol()

◆ SCIPsetProbCopy()

◆ SCIPreadProb()

◆ SCIPwriteOrigProblem()

◆ SCIPwriteTransProblem()

◆ SCIPfreeProb()

◆ SCIPpermuteProb()

◆ SCIPgetProbData()

◆ SCIPsetProbData()

◆ SCIPgetProbName()

◆ SCIPsetProbName()

◆ SCIPchgReoptObjective()

◆ SCIPgetObjsense()

◆ SCIPsetObjsense()

◆ SCIPaddObjoffset()

◆ SCIPaddOrigObjoffset()

◆ SCIPgetOrigObjoffset()

◆ SCIPgetOrigObjscale()

◆ SCIPgetTransObjoffset()

◆ SCIPgetTransObjscale()

◆ SCIPsetObjlimit()

◆ SCIPgetObjlimit()

◆ SCIPsetObjIntegral()

◆ SCIPisObjIntegral()

◆ SCIPgetObjNorm()

◆ SCIPaddVar()

◆ SCIPaddPricedVar()

◆ SCIPdelVar()

◆ SCIPgetVarsData()

◆ SCIPgetVars()

◆ SCIPgetNVars()

◆ SCIPgetNBinVars()

◆ SCIPgetNIntVars()

◆ SCIPgetNImplVars()

◆ SCIPgetNContVars()

◆ SCIPgetNObjVars()

◆ SCIPgetFixedVars()

◆ SCIPgetNFixedVars()

◆ SCIPgetOrigVarsData()

◆ SCIPgetOrigVars()

◆ SCIPgetNOrigVars()

◆ SCIPgetNOrigBinVars()

◆ SCIPgetNOrigIntVars()

◆ SCIPgetNOrigImplVars()

◆ SCIPgetNOrigContVars()

◆ SCIPgetNTotalVars()

◆ SCIPgetSolVarsData()

◆ SCIPfindVar()

◆ SCIPallVarsInProb()

◆ SCIPaddCons()

◆ SCIPdelCons()

◆ SCIPfindOrigCons()

◆ SCIPfindCons()

◆ SCIPgetNUpgrConss()

◆ SCIPgetNConss()

◆ SCIPgetConss()

◆ SCIPgetNOrigConss()

◆ SCIPgetOrigConss()

◆ SCIPgetNCheckConss()