Detailed Description

methods to create and change primal solutions of SCIP

Functions
SCIP_SOLORIGIN	SCIPsolGetOrigin (SCIP_SOL *sol)

SCIP_Bool	SCIPsolIsOriginal (SCIP_SOL *sol)

SCIP_Bool	SCIPsolIsPartial (SCIP_SOL *sol)

SCIP_Real	SCIPsolGetOrigObj (SCIP_SOL *sol)

SCIP_Real	SCIPsolGetTime (SCIP_SOL *sol)

int	SCIPsolGetRunnum (SCIP_SOL *sol)

SCIP_Longint	SCIPsolGetNodenum (SCIP_SOL *sol)

int	SCIPsolGetDepth (SCIP_SOL *sol)

SCIP_SOLTYPE	SCIPsolGetType (SCIP_SOL *sol)

SCIP_HEUR *	SCIPsolGetHeur (SCIP_SOL *sol)

SCIP_RELAX *	SCIPsolGetRelax (SCIP_SOL *sol)

void	SCIPsolSetHeur (SCIP_SOL sol, SCIP_HEUR heur)

void	SCIPsolSetRelax (SCIP_SOL sol, SCIP_RELAX relax)

void	SCIPsolSetLPRelaxation (SCIP_SOL *sol)

void	SCIPsolSetStrongbranching (SCIP_SOL *sol)

void	SCIPsolSetPseudo (SCIP_SOL *sol)

int	SCIPsolGetIndex (SCIP_SOL *sol)

SCIP_Real	SCIPsolGetAbsBoundViolation (SCIP_SOL *sol)

SCIP_Real	SCIPsolGetRelBoundViolation (SCIP_SOL *sol)

SCIP_Real	SCIPsolGetAbsIntegralityViolation (SCIP_SOL *sol)

SCIP_Real	SCIPsolGetAbsLPRowViolation (SCIP_SOL *sol)

SCIP_Real	SCIPsolGetRelLPRowViolation (SCIP_SOL *sol)

SCIP_Real	SCIPsolGetAbsConsViolation (SCIP_SOL *sol)

SCIP_Real	SCIPsolGetRelConsViolation (SCIP_SOL *sol)

SCIP_RETCODE	SCIPcreateSol (SCIP scip, SCIP_SOL sol, SCIP_HEUR heur)

SCIP_RETCODE	SCIPcreateLPSol (SCIP scip, SCIP_SOL sol, SCIP_HEUR heur)

SCIP_RETCODE	SCIPcreateNLPSol (SCIP scip, SCIP_SOL sol, SCIP_HEUR heur)

SCIP_RETCODE	SCIPcreateRelaxSol (SCIP scip, SCIP_SOL sol, SCIP_HEUR heur)

SCIP_RETCODE	SCIPcreatePseudoSol (SCIP scip, SCIP_SOL sol, SCIP_HEUR heur)

SCIP_RETCODE	SCIPcreateCurrentSol (SCIP scip, SCIP_SOL sol, SCIP_HEUR heur)

SCIP_RETCODE	SCIPcreatePartialSol (SCIP scip, SCIP_SOL sol, SCIP_HEUR heur)

SCIP_RETCODE	SCIPcreateUnknownSol (SCIP scip, SCIP_SOL sol, SCIP_HEUR heur)

SCIP_RETCODE	SCIPcreateOrigSol (SCIP scip, SCIP_SOL sol, SCIP_HEUR heur)

SCIP_RETCODE	SCIPcreateSolCopy (SCIP scip, SCIP_SOL sol, SCIP_SOL sourcesol)

SCIP_RETCODE	SCIPcreateSolCopyOrig (SCIP scip, SCIP_SOL sol, SCIP_SOL sourcesol)

SCIP_RETCODE	SCIPcreateFiniteSolCopy (SCIP scip, SCIP_SOL sol, SCIP_SOL sourcesol, SCIP_Bool *success)

SCIP_RETCODE	SCIPfreeSol (SCIP scip, SCIP_SOL *sol)

SCIP_RETCODE	SCIPlinkLPSol (SCIP scip, SCIP_SOL sol)

SCIP_RETCODE	SCIPlinkNLPSol (SCIP scip, SCIP_SOL sol)

SCIP_RETCODE	SCIPlinkRelaxSol (SCIP scip, SCIP_SOL sol)

SCIP_RETCODE	SCIPlinkPseudoSol (SCIP scip, SCIP_SOL sol)

SCIP_RETCODE	SCIPlinkCurrentSol (SCIP scip, SCIP_SOL sol)

SCIP_RETCODE	SCIPclearSol (SCIP scip, SCIP_SOL sol)

SCIP_RETCODE	SCIPunlinkSol (SCIP scip, SCIP_SOL sol)

SCIP_RETCODE	SCIPsetSolVal (SCIP scip, SCIP_SOL sol, SCIP_VAR *var, SCIP_Real val)

SCIP_RETCODE	SCIPsetSolVals (SCIP scip, SCIP_SOL sol, int nvars, SCIP_VAR *vars, SCIP_Real vals)

SCIP_RETCODE	SCIPincSolVal (SCIP scip, SCIP_SOL sol, SCIP_VAR *var, SCIP_Real incval)

SCIP_Real	SCIPgetSolVal (SCIP scip, SCIP_SOL sol, SCIP_VAR *var)

SCIP_RETCODE	SCIPgetSolVals (SCIP scip, SCIP_SOL sol, int nvars, SCIP_VAR *vars, SCIP_Real vals)

SCIP_Real	SCIPgetSolOrigObj (SCIP scip, SCIP_SOL sol)

SCIP_Real	SCIPgetSolTransObj (SCIP scip, SCIP_SOL sol)

SCIP_RETCODE	SCIPrecomputeSolObj (SCIP scip, SCIP_SOL sol)

SCIP_Real	SCIPtransformObj (SCIP *scip, SCIP_Real obj)

SCIP_Real	SCIPretransformObj (SCIP *scip, SCIP_Real obj)

SCIP_Real	SCIPgetSolTime (SCIP scip, SCIP_SOL sol)

int	SCIPgetSolRunnum (SCIP scip, SCIP_SOL sol)

SCIP_Longint	SCIPgetSolNodenum (SCIP scip, SCIP_SOL sol)

SCIP_HEUR *	SCIPgetSolHeur (SCIP scip, SCIP_SOL sol)

SCIP_Bool	SCIPareSolsEqual (SCIP scip, SCIP_SOL sol1, SCIP_SOL *sol2)

SCIP_RETCODE	SCIPadjustImplicitSolVals (SCIP scip, SCIP_SOL sol, SCIP_Bool uselprows)

SCIP_RETCODE	SCIPprintSol (SCIP scip, SCIP_SOL sol, FILE *file, SCIP_Bool printzeros)

SCIP_RETCODE	SCIPprintTransSol (SCIP scip, SCIP_SOL sol, FILE *file, SCIP_Bool printzeros)

SCIP_RETCODE	SCIPprintMIPStart (SCIP scip, SCIP_SOL sol, FILE *file)

SCIP_RETCODE	SCIPgetDualSolVal (SCIP scip, SCIP_CONS cons, SCIP_Real dualsolval, SCIP_Bool boundconstraint)

SCIP_Bool	SCIPisDualSolAvailable (SCIP *scip, SCIP_Bool printreason)

SCIP_RETCODE	SCIPprintDualSol (SCIP scip, FILE file, SCIP_Bool printzeros)

SCIP_RETCODE	SCIPprintRay (SCIP scip, SCIP_SOL sol, FILE *file, SCIP_Bool printzeros)

int	SCIPgetNSols (SCIP *scip)

SCIP_SOL **	SCIPgetSols (SCIP *scip)

SCIP_SOL *	SCIPgetBestSol (SCIP *scip)

SCIP_RETCODE	SCIPprintBestSol (SCIP scip, FILE file, SCIP_Bool printzeros)

SCIP_RETCODE	SCIPprintBestTransSol (SCIP scip, FILE file, SCIP_Bool printzeros)

SCIP_RETCODE	SCIProundSol (SCIP scip, SCIP_SOL sol, SCIP_Bool *success)

SCIP_RETCODE	SCIPretransformSol (SCIP scip, SCIP_SOL sol)

SCIP_RETCODE	SCIPreadSol (SCIP scip, const char filename)

SCIP_RETCODE	SCIPreadSolFile (SCIP scip, const char filename, SCIP_SOL sol, SCIP_Bool xml, SCIP_Bool partial, SCIP_Bool *error)

SCIP_RETCODE	SCIPaddSol (SCIP scip, SCIP_SOL sol, SCIP_Bool *stored)

SCIP_RETCODE	SCIPaddSolFree (SCIP scip, SCIP_SOL sol, SCIP_Bool stored)

SCIP_RETCODE	SCIPaddCurrentSol (SCIP scip, SCIP_HEUR heur, SCIP_Bool *stored)

SCIP_RETCODE	SCIPtrySol (SCIP scip, SCIP_SOL sol, SCIP_Bool printreason, SCIP_Bool completely, SCIP_Bool checkbounds, SCIP_Bool checkintegrality, SCIP_Bool checklprows, SCIP_Bool *stored)

SCIP_RETCODE	SCIPtrySolFree (SCIP scip, SCIP_SOL sol, SCIP_Bool printreason, SCIP_Bool completely, SCIP_Bool checkbounds, SCIP_Bool checkintegrality, SCIP_Bool checklprows, SCIP_Bool stored)

SCIP_RETCODE	SCIPtryCurrentSol (SCIP scip, SCIP_HEUR heur, SCIP_Bool printreason, SCIP_Bool completely, SCIP_Bool checkintegrality, SCIP_Bool checklprows, SCIP_Bool *stored)

SCIP_SOL **	SCIPgetPartialSols (SCIP *scip)

int	SCIPgetNPartialSols (SCIP *scip)

SCIP_RETCODE	SCIPcheckSol (SCIP scip, SCIP_SOL sol, SCIP_Bool printreason, SCIP_Bool completely, SCIP_Bool checkbounds, SCIP_Bool checkintegrality, SCIP_Bool checklprows, SCIP_Bool *feasible)

SCIP_RETCODE	SCIPcheckSolOrig (SCIP scip, SCIP_SOL sol, SCIP_Bool *feasible, SCIP_Bool printreason, SCIP_Bool completely)

void	SCIPupdateSolIntegralityViolation (SCIP scip, SCIP_SOL sol, SCIP_Real absviol)

void	SCIPupdateSolBoundViolation (SCIP scip, SCIP_SOL sol, SCIP_Real absviol, SCIP_Real relviol)

void	SCIPupdateSolLPRowViolation (SCIP scip, SCIP_SOL sol, SCIP_Real absviol, SCIP_Real relviol)

void	SCIPupdateSolConsViolation (SCIP scip, SCIP_SOL sol, SCIP_Real absviol, SCIP_Real relviol)

void	SCIPupdateSolLPConsViolation (SCIP scip, SCIP_SOL sol, SCIP_Real absviol, SCIP_Real relviol)

void	SCIPactivateSolViolationUpdates (SCIP *scip)

void	SCIPdeactivateSolViolationUpdates (SCIP *scip)

SCIP_Bool	SCIPhasPrimalRay (SCIP *scip)

SCIP_Real	SCIPgetPrimalRayVal (SCIP scip, SCIP_VAR var)

SCIP_RETCODE	SCIPupdatePrimalRay (SCIP scip, SCIP_SOL primalray)

Function Documentation

◆ SCIPsolGetOrigin()

SCIP_SOLORIGIN SCIPsolGetOrigin ( SCIP_SOL * sol )

gets origin of solution

Parameters

sol	primal CIP solution

Definition at line 2711 of file sol.c.

References NULL, and SCIP_Sol::solorigin.

Referenced by DECL_VARFIXINGS(), SCIP_DECL_CONSCHECK(), SCIPprimalAddOrigObjoffset(), SCIPprimalRetransformSolutions(), SCIPretransformSol(), and tightenVariables().

◆ SCIPsolIsOriginal()

SCIP_Bool SCIPsolIsOriginal ( SCIP_SOL * sol )

returns whether the given solution is defined on original variables

Parameters

sol	primal CIP solution

Definition at line 2721 of file sol.c.

References NULL, SCIP_SOLORIGIN_ORIGINAL, SCIP_SOLORIGIN_PARTIAL, and SCIP_Sol::solorigin.

Referenced by executeDivingHeuristic(), freeTransform(), origsolOfInterest(), primalAddSol(), primalExistsSol(), primalSearchSolPos(), SCIP_DECL_CONSCHECK(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_DISPOUTPUT(), SCIP_DECL_DIVESETAVAILABLE(), SCIP_DECL_DIVESETGETSCORE(), SCIP_DECL_HEUREXEC(), SCIPaddSol(), SCIPaddSolFree(), SCIPapplyProximity(), SCIPcheckSol(), SCIPgetSolOrigObj(), SCIPgetSolVarsData(), SCIPincSolVal(), SCIPprimalAddOrigSol(), SCIPprimalAddOrigSolFree(), SCIPprimalTransformSol(), SCIPprimalUpdateObjoffset(), SCIPprimalUpdateVarObj(), SCIPprintBestTransSol(), SCIPprintMIPStart(), SCIPprintSol(), SCIPprintTransSol(), SCIProundSol(), SCIPsetSolVal(), SCIPsetSolVals(), SCIPsolCheck(), SCIPsolGetObj(), SCIPsolGetOrigObj(), SCIPsolGetRayVal(), SCIPsolGetVal(), SCIPsolIncVal(), SCIPsolPrint(), SCIPsolPrintRay(), SCIPsolRecomputeObj(), SCIPsolRound(), SCIPsolsAreEqual(), SCIPsolSetVal(), SCIPsolTransform(), SCIPsolUnlink(), SCIPsolUpdateVarObj(), SCIPsolUpdateVarsum(), SCIPsolve(), SCIPtrySol(), SCIPtrySolFree(), separateSolution(), and transformSols().

◆ SCIPsolIsPartial()

SCIP_Bool SCIPsolIsPartial ( SCIP_SOL * sol )

returns whether the given solution is partial

returns whether the given solution is defined on original variables and containes unknown solution values

Parameters

sol	primal CIP solution

Definition at line 2731 of file sol.c.

References NULL, SCIP_SOLORIGIN_PARTIAL, and SCIP_Sol::solorigin.

Referenced by readSol(), readSolFile(), readXmlSolFile(), SCIP_DECL_HEUREXEC(), SCIPcheckSol(), SCIPcheckSolOrig(), SCIPprimalAddOrigSol(), SCIPprimalAddOrigSolFree(), SCIPprimalAddSol(), SCIPprintMIPStart(), SCIPprintSol(), SCIPsolPrint(), SCIPsolSetVal(), SCIPtrySol(), and SCIPtrySolFree().

◆ SCIPsolGetOrigObj()

SCIP_Real SCIPsolGetOrigObj ( SCIP_SOL * sol )

gets objective value of primal CIP solution which lives in the original problem space

Parameters

sol	primal CIP solution

Definition at line 2741 of file sol.c.

References NULL, SCIP_Sol::obj, and SCIPsolIsOriginal().

Referenced by primalAddOrigSol(), primalExistsOrigSol(), primalSearchOrigSolPos(), SCIPgetSolOrigObj(), SCIPprimalAddOrigObjoffset(), SCIPprimalTransformSol(), SCIPprintMIPStart(), SCIPprintSol(), solveAndEvalSubscip(), and storeSolution().

◆ SCIPsolGetTime()

SCIP_Real SCIPsolGetTime ( SCIP_SOL * sol )

gets clock time, when this solution was found

Parameters

sol	primal CIP solution

Definition at line 2764 of file sol.c.

References NULL, and SCIP_Sol::time.

Referenced by primalAddSol(), SCIPgetSolTime(), and SCIPprintSolutionStatistics().

◆ SCIPsolGetRunnum()

int SCIPsolGetRunnum ( SCIP_SOL * sol )

gets branch and bound run number, where this solution was found

Parameters

sol	primal CIP solution

Definition at line 2774 of file sol.c.

References NULL, and SCIP_Sol::runnum.

Referenced by primalAddSol(), SCIPgetSolRunnum(), and SCIPprintSolutionStatistics().

◆ SCIPsolGetNodenum()

SCIP_Longint SCIPsolGetNodenum ( SCIP_SOL * sol )

gets node number of the specific branch and bound run, where this solution was found

gets node number, where this solution was found

Parameters

sol	primal CIP solution

Definition at line 2784 of file sol.c.

References SCIP_Sol::nodenum, and NULL.

Referenced by determineVariableFixings(), primalAddSol(), SCIP_DECL_HEUREXEC(), SCIPapplyProximity(), SCIPgetSolNodenum(), SCIPprintSolutionStatistics(), SCIPsolve(), setupAndSolve(), and solHasNewSource().

◆ SCIPsolGetDepth()

int SCIPsolGetDepth ( SCIP_SOL * sol )

gets node's depth, where this solution was found

Parameters

sol	primal CIP solution

Definition at line 2794 of file sol.c.

References SCIP_Sol::depth, and NULL.

Referenced by primalAddSol(), and SCIPprintSolutionStatistics().

◆ SCIPsolGetType()

SCIP_SOLTYPE SCIPsolGetType ( SCIP_SOL * sol )

gets information if solution was found by the LP, a primal heuristic, or a custom relaxator

Parameters

sol	primal CIP solution

Definition at line 2866 of file sol.c.

References NULL, and SCIP_Sol::type.

Referenced by SCIP_DECL_DISPOUTPUT().

◆ SCIPsolGetHeur()

SCIP_HEUR * SCIPsolGetHeur ( SCIP_SOL * sol )

gets heuristic that found this solution, or NULL if solution has type different than SCIP_SOLTYPE_HEUR

gets heuristic, that found this solution or NULL if solution has type different than SCIP_SOLTYPE_HEUR

Parameters

sol	primal CIP solution

Definition at line 2804 of file sol.c.

References SCIP_Sol::creator, SCIP_Sol::heur, NULL, SCIP_SOLTYPE_HEUR, and SCIP_Sol::type.

Referenced by checkSolution(), determineVariableFixings(), notifyNlhdlrNewsol(), presolve(), presolveRound(), primalAddSol(), proposeFeasibleSolution(), SCIP_DECL_CONCSOLVERCOPYSOLVINGDATA(), SCIP_DECL_CONSCHECK(), SCIP_DECL_DISPOUTPUT(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_HEUREXEC(), SCIPapplyProximity(), SCIPgetSolHeur(), SCIPprimalTransformSol(), SCIPprintSolutionStatistics(), SCIPreoptAddSol(), SCIPsolCopy(), SCIPsolve(), SCIPupdateStartpointHeurSubNlp(), SCIPvisualFoundSolution(), solHasNewSource(), soltreeAddSol(), solveComponent(), and solveSubNLP().

◆ SCIPsolGetRelax()

SCIP_RELAX * SCIPsolGetRelax ( SCIP_SOL * sol )

gets relaxation handler that found this solution, or NULL if solution has different type than SCIP_SOLTYPE_RELAX

Parameters

sol	primal CIP solution

Definition at line 2876 of file sol.c.

References SCIP_Sol::creator, NULL, SCIP_Sol::relax, SCIP_SOLTYPE_RELAX, and SCIP_Sol::type.

Referenced by SCIP_DECL_DISPOUTPUT(), and SCIPsolCopy().

◆ SCIPsolSetHeur()

void SCIPsolSetHeur	(	SCIP_SOL *	sol,
		SCIP_HEUR *	heur
	)

informs the solution that it now belongs to the given primal heuristic. For convenience and backwards compatibility, the method accepts NULL as input for heur, in which case the solution type is set to SCIP_SOLTYPE_LPRELAX.

Note: Relaxation handlers should use SCIPsolSetRelax() instead.

Parameters

sol	primal CIP solution
heur	primal heuristic that found the solution, or NULL for LP solutions

Definition at line 2849 of file sol.c.

References SCIP_Sol::creator, SCIP_Sol::heur, NULL, SCIP_SOLTYPE_HEUR, SCIPsolSetLPRelaxation(), and SCIP_Sol::type.

Referenced by createSolFromNLP(), createSolFromSubScipSol(), primalLinkCurrentSol(), SCIP_DECL_HEUREXEC(), SCIPheurPassSolAddSol(), SCIPheurPassSolTrySol(), SCIPheurSyncPassSol(), SCIPsolCopy(), SCIPsolCreate(), SCIPsolCreateOriginal(), SCIPsolCreatePartial(), SCIPsolCreateUnknown(), SCIPupdateStartpointHeurSubNlp(), and solveComponent().

◆ SCIPsolSetRelax()

void SCIPsolSetRelax	(	SCIP_SOL *	sol,
		SCIP_RELAX *	relax
	)

informs the solution that it now belongs to the given relaxation handler

Parameters

sol	primal CIP solution
relax	relaxator that found the solution

Definition at line 2886 of file sol.c.

References SCIP_Sol::creator, NULL, SCIP_Sol::relax, SCIP_SOLTYPE_RELAX, and SCIP_Sol::type.

Referenced by SCIPsolCopy(), and SCIPsolCreateRelaxSol().

◆ SCIPsolSetLPRelaxation()

void SCIPsolSetLPRelaxation ( SCIP_SOL * sol )

informs the solution that it is an LP relaxation solution

Parameters

sol	primal CIP solution

Definition at line 2899 of file sol.c.

References NULL, SCIP_SOLTYPE_LPRELAX, and SCIP_Sol::type.

Referenced by SCIPsolSetHeur().

◆ SCIPsolSetStrongbranching()

void SCIPsolSetStrongbranching ( SCIP_SOL * sol )

informs the solution that it is a solution found during strong branching

Parameters

sol	primal CIP solution

Definition at line 2909 of file sol.c.

References NULL, SCIP_SOLTYPE_STRONGBRANCH, and SCIP_Sol::type.

Referenced by SCIPtryStrongbranchLPSol().

◆ SCIPsolSetPseudo()

void SCIPsolSetPseudo ( SCIP_SOL * sol )

informs the solution that it originates from a pseudo solution

Parameters

sol	primal CIP solution

Definition at line 2919 of file sol.c.

References NULL, SCIP_SOLTYPE_PSEUDO, and SCIP_Sol::type.

Referenced by SCIPsolCreatePseudoSol().

◆ SCIPsolGetIndex()

int SCIPsolGetIndex ( SCIP_SOL * sol )

returns unique index of given solution

Parameters

sol	primal CIP solution

Definition at line 2835 of file sol.c.

References SCIP_Sol::index, and NULL.

Referenced by constructValidSolution(), execRelpscost(), SCIP_DECL_CONSCHECK(), SCIP_DECL_HEUREXEC(), SCIP_DECL_NLHDLRESTIMATE(), SCIP_DECL_NLHDLRSOLLINEARIZE(), SCIPapplyProximity(), SCIPIsConcurrentSolNew(), SCIPtranslateSubSols(), selectInitialVariableDecomposition(), setupAndSolveSubscipCrossover(), solveComponent(), and solveSubscipLpface().

◆ SCIPsolGetAbsBoundViolation()

SCIP_Real SCIPsolGetAbsBoundViolation ( SCIP_SOL * sol )

get maximum absolute bound violation of solution

Parameters

sol	primal CIP solution

Definition at line 2613 of file sol.c.

References SCIP_Viol::absviolbounds, NULL, and SCIP_Sol::viol.

Referenced by SCIP_DECL_DIALOGEXEC().

◆ SCIPsolGetRelBoundViolation()

SCIP_Real SCIPsolGetRelBoundViolation ( SCIP_SOL * sol )

get maximum relative bound violation of solution

Parameters

sol	primal CIP solution

Definition at line 2623 of file sol.c.

References NULL, SCIP_Viol::relviolbounds, and SCIP_Sol::viol.

Referenced by SCIP_DECL_DIALOGEXEC().

◆ SCIPsolGetAbsIntegralityViolation()

SCIP_Real SCIPsolGetAbsIntegralityViolation ( SCIP_SOL * sol )

get maximum absolute integrality violation of solution

Parameters

sol	primal CIP solution

Definition at line 2633 of file sol.c.

References SCIP_Viol::absviolintegrality, NULL, and SCIP_Sol::viol.

Referenced by SCIP_DECL_DIALOGEXEC().

◆ SCIPsolGetAbsLPRowViolation()

SCIP_Real SCIPsolGetAbsLPRowViolation ( SCIP_SOL * sol )

get maximum absolute LP row violation of solution

Parameters

sol	primal CIP solution

Definition at line 2643 of file sol.c.

References SCIP_Viol::absviollprows, NULL, and SCIP_Sol::viol.

Referenced by SCIP_DECL_DIALOGEXEC().

◆ SCIPsolGetRelLPRowViolation()

SCIP_Real SCIPsolGetRelLPRowViolation ( SCIP_SOL * sol )

get maximum relative LP row violation of solution

Parameters

sol	primal CIP solution

Definition at line 2653 of file sol.c.

References NULL, SCIP_Viol::relviollprows, and SCIP_Sol::viol.

Referenced by SCIP_DECL_DIALOGEXEC().

◆ SCIPsolGetAbsConsViolation()

SCIP_Real SCIPsolGetAbsConsViolation ( SCIP_SOL * sol )

get maximum absolute constraint violation of solution

Parameters

sol	primal CIP solution

Definition at line 2663 of file sol.c.

References SCIP_Viol::absviolcons, NULL, and SCIP_Sol::viol.

Referenced by SCIP_DECL_DIALOGEXEC().

◆ SCIPsolGetRelConsViolation()

SCIP_Real SCIPsolGetRelConsViolation ( SCIP_SOL * sol )

get maximum relative constraint violation of solution

Parameters

sol	primal CIP solution

Definition at line 2673 of file sol.c.

References NULL, SCIP_Viol::relviolcons, and SCIP_Sol::viol.

Referenced by SCIP_DECL_DIALOGEXEC().

◆ SCIPcreateSol()

SCIP_RETCODE SCIPcreateSol	(	SCIP *	scip,
		SCIP_SOL **	sol,
		SCIP_HEUR *	heur
	)

creates a primal solution, initialized to zero

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	pointer to store the solution
heur	heuristic that found the solution (or NULL if it's from the tree)

Definition at line 184 of file scip_sol.c.

References FALSE, NULL, SCIP_CALL, SCIP_INVALIDDATA, SCIP_OKAY, 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, SCIPcheckStage(), SCIPerrorMessage, SCIPsolCreate(), SCIPsolCreateOriginal(), and TRUE.

Referenced by applyBoundHeur(), applyRepair(), applyVbounds(), checkSystemGF2(), computeInteriorPoint(), computeOffValues(), createCGMIPprimalsols(), createNewSol(), createSolFromNLP(), createSolFromSubScipSol(), createSwitchSolution(), DECL_VARFIXINGS(), estimateConvexSecant(), estimateGradient(), estimateVertexPolyhedral(), generateCloseCutPoint(), generateIntercut(), heurExec(), initConcsolver(), initProblem(), AMPLProblemHandler::OnInitialValue(), presolve(), readSol(), reoptimize(), sampleRandomPoints(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONCSOLVERCOPYSOLVINGDATA(), SCIP_DECL_HEUREXEC(), SCIP_DECL_HEURINIT(), SCIP_DECL_NLHDLRENFO(), SCIP_DECL_NLHDLRINITSEPA(), SCIPaddNlRowGradientBenderscutOpt(), SCIPcomputeLPRelIntPoint(), SCIPcycAddIncompleteSol(), SCIPtranslateSubSol(), SCIPtranslateSubSols(), separateAlternativeProofs(), separateCuts(), setAndUpdateCorePoint(), setupAndSolve(), solveNLP(), startProbing(), tryOneOpt(), and trySolCandidate().

◆ SCIPcreateLPSol()

SCIP_RETCODE SCIPcreateLPSol	(	SCIP *	scip,
		SCIP_SOL **	sol,
		SCIP_HEUR *	heur
	)

creates a primal solution, initialized to the current LP 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:

SCIP_STAGE_SOLVING

Parameters

scip	SCIP data structure
sol	pointer to store the solution
heur	heuristic that found the solution (or NULL if it's from the tree)

Definition at line 226 of file scip_sol.c.

References FALSE, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIPcheckStage(), SCIPerrorMessage, SCIPsolCreateLPSol(), SCIPtreeHasCurrentNodeLP(), and TRUE.

Referenced by constructValidSolution(), copyCurrentSolution(), performInteriorSolCutStrengthening(), proposeFeasibleSolution(), SCIP_DECL_CONSENFOLP(), SCIPtryStrongbranchLPSol(), and setAndUpdateCorePoint().

◆ SCIPcreateNLPSol()

SCIP_RETCODE SCIPcreateNLPSol	(	SCIP *	scip,
		SCIP_SOL **	sol,
		SCIP_HEUR *	heur
	)

creates a primal solution, initialized to the current NLP 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:

SCIP_STAGE_SOLVING

Parameters

scip	SCIP data structure
sol	pointer to store the solution
heur	heuristic that found the solution (or NULL if it's from the tree)

Definition at line 254 of file scip_sol.c.

References FALSE, NULL, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIPcheckStage(), SCIPerrorMessage, SCIPisNLPConstructed(), SCIPnlpHasSolution(), SCIPsolCreateNLPSol(), and TRUE.

Referenced by resolveNLPWithTighterFeastol(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_SEPAEXECLP(), SCIPaddNlRowGradientBenderscutOpt(), SCIPbendersSolSlackVarsActive(), and SCIPbendersSolveSubproblemLP().

◆ SCIPcreateRelaxSol()

SCIP_RETCODE SCIPcreateRelaxSol	(	SCIP *	scip,
		SCIP_SOL **	sol,
		SCIP_HEUR *	heur
	)

creates a primal solution, initialized to the current relaxation 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:

SCIP_STAGE_SOLVING

Parameters

scip	SCIP data structure
sol	pointer to store the solution
heur	heuristic that found the solution (or NULL if it's from the tree)

Definition at line 289 of file scip_sol.c.

References FALSE, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIPcheckStage(), SCIPerrorMessage, SCIPrelaxationIsSolValid(), SCIPsolCreateRelaxSol(), and TRUE.

Referenced by constructValidSolution().

◆ SCIPcreatePseudoSol()

SCIP_RETCODE SCIPcreatePseudoSol	(	SCIP *	scip,
		SCIP_SOL **	sol,
		SCIP_HEUR *	heur
	)

creates a primal solution, initialized to the current pseudo 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:

SCIP_STAGE_SOLVING

Parameters

scip	SCIP data structure
sol	pointer to store the solution
heur	heuristic that found the solution (or NULL if it's from the tree)

Definition at line 316 of file scip_sol.c.

References FALSE, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPsolCreatePseudoSol(), and TRUE.

Referenced by constructValidSolution(), and SCIP_DECL_CONSENFOPS().

◆ SCIPcreateCurrentSol()

SCIP_RETCODE SCIPcreateCurrentSol	(	SCIP *	scip,
		SCIP_SOL **	sol,
		SCIP_HEUR *	heur
	)

creates a primal solution, initialized to the current LP or pseudo solution, depending on whether the LP was solved at the current node

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_SOLVING

Parameters

scip	SCIP data structure
sol	pointer to store the solution
heur	heuristic that found the solution (or NULL if it's from the tree)

Definition at line 339 of file scip_sol.c.

References FALSE, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPsolCreateCurrentSol(), and TRUE.

Referenced by SCIP_DECL_CONSENFOLP(), SCIP_DECL_CONSENFOPS(), SCIP_DECL_SEPAEXECLP(), SCIPbendersSolSlackVarsActive(), SCIPcreateSolCopy(), and SCIPcreateSolCopyOrig().

◆ SCIPcreatePartialSol()

SCIP_RETCODE SCIPcreatePartialSol	(	SCIP *	scip,
		SCIP_SOL **	sol,
		SCIP_HEUR *	heur
	)

creates a partial primal solution, initialized to unknown values

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
sol	pointer to store the solution
heur	heuristic that found the solution (or NULL if it's from the tree)

Definition at line 361 of file scip_sol.c.

References FALSE, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPsolCreatePartial(), and TRUE.

Referenced by readMst().

◆ SCIPcreateUnknownSol()

SCIP_RETCODE SCIPcreateUnknownSol	(	SCIP *	scip,
		SCIP_SOL **	sol,
		SCIP_HEUR *	heur
	)

creates a primal solution, initialized to unknown values

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	pointer to store the solution
heur	heuristic that found the solution (or NULL if it's from the tree)

Definition at line 389 of file scip_sol.c.

References FALSE, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPsolCreateUnknown(), and TRUE.

◆ SCIPcreateOrigSol()

SCIP_RETCODE SCIPcreateOrigSol	(	SCIP *	scip,
		SCIP_SOL **	sol,
		SCIP_HEUR *	heur
	)

creates a primal solution living in the original problem space, initialized to zero; a solution in original space allows to set original variables to values that would be invalid in the transformed problem due to preprocessing fixings or aggregations

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:

creates a primal solution living in the original problem space, initialized to zero; a solution in original space allows to set original variables to values that would be invalid in the transformed problem due to preprocessing fixings or aggregations

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	pointer to store the solution
heur	heuristic that found the solution (or NULL if it's from the tree)

Definition at line 421 of file scip_sol.c.

References FALSE, NULL, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, 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, SCIPcheckStage(), SCIPerrorMessage, SCIPsolCreateOriginal(), and TRUE.

Referenced by applyOptcumulative(), componentSetupWorkingSol(), createSolFromSubScipSol(), executeHeuristic(), fixDiscreteVars(), reuseSolution(), SCIP_DECL_CONCSOLVERSYNCREAD(), SCIP_DECL_HEUREXEC(), SCIPcreateFiniteSolCopy(), setupAndSolveSubscipOneopt(), and solveAndEvalSubscip().

◆ SCIPcreateSolCopy()

SCIP_RETCODE SCIPcreateSolCopy	(	SCIP *	scip,
		SCIP_SOL **	sol,
		SCIP_SOL *	sourcesol
	)

creates a copy of a primal solution; note that a copy of a linked solution is also linked and needs to be unlinked if it should stay unaffected from changes in the LP or pseudo 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:

creates a copy of a primal solution; note that a copy of a linked solution is also linked and needs to be unlinked if it should stay unaffected from changes in the LP or pseudo 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:

Parameters

scip	SCIP data structure
sol	pointer to store the solution
sourcesol	primal CIP solution to copy

Definition at line 474 of file scip_sol.c.

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

Referenced by constructValidSolution(), enforceCardinality(), fromCommandLine(), proposeFeasibleSolution(), sampleRandomPoints(), SCIP_DECL_CONSCHECK(), SCIP_DECL_HEUREXEC(), SCIP_DECL_SEPAEXECLP(), SCIPheurPassSolAddSol(), SCIPheurPassSolTrySol(), SCIPsetBasePointClosecuts(), SCIPupdateStartpointHeurSubNlp(), and setAndUpdateCorePoint().

◆ SCIPcreateSolCopyOrig()

SCIP_RETCODE SCIPcreateSolCopyOrig	(	SCIP *	scip,
		SCIP_SOL **	sol,
		SCIP_SOL *	sourcesol
	)

creates a copy of a solution in the original primal solution 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:

Parameters

scip	SCIP data structure
sol	pointer to store the solution
sourcesol	primal CIP solution to copy

Definition at line 514 of file scip_sol.c.

References FALSE, NULL, SCIP_CALL, SCIP_OKAY, SCIP_STAGE_EXITPRESOLVE, 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, SCIPcheckStage(), SCIPcreateCurrentSol(), SCIPsolCopy(), and TRUE.

◆ SCIPcreateFiniteSolCopy()

SCIP_RETCODE SCIPcreateFiniteSolCopy	(	SCIP *	scip,
		SCIP_SOL **	sol,
		SCIP_SOL *	sourcesol,
		SCIP_Bool *	success
	)

creates a copy of a primal solution, thereby replacing infinite fixings of variables by finite values; the copy is always defined in the original variable space; success indicates whether the objective value of the solution was changed by removing infinite values

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	pointer to store the solution
sourcesol	primal CIP solution to copy
success	does the finite solution have the same objective value?

Definition at line 705 of file scip_sol.c.

References FALSE, NULL, REALABS, SCIP_CALL, SCIP_OKAY, SCIP_Real, SCIP_VARSTATUS_FIXED, SCIPallocBufferArray, SCIPcheckStage(), SCIPcreate(), SCIPcreateOrigSol(), SCIPdebugMsg, SCIPepsilon(), SCIPfree(), SCIPfreeBufferArray, SCIPgetFixedVars(), SCIPgetNFixedVars(), SCIPgetOrigVarsData(), SCIPgetSolOrigObj(), SCIPgetSolVals(), SCIPisEQ(), SCIPisInfinity(), SCIPprintSol(), SCIPsetSolVal(), SCIPvarGetLbGlobal(), SCIPvarGetLbOriginal(), SCIPvarGetName(), SCIPvarGetStatus(), SCIPvarGetUbGlobal(), SCIPvarGetUbOriginal(), setupAndSolveFiniteSolSubscip(), and TRUE.

Referenced by freeTransform(), and SCIP_DECL_DIALOGEXEC().

◆ SCIPfreeSol()

SCIP_RETCODE SCIPfreeSol	(	SCIP *	scip,
		SCIP_SOL **	sol
	)

frees primal CIP 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:

Parameters

scip	SCIP data structure
sol	pointer to the solution

Definition at line 841 of file scip_sol.c.

References FALSE, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, 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, SCIPcheckStage(), SCIPerrorMessage, SCIPsolFree(), and TRUE.

Referenced by applyBoundHeur(), applyHeur(), applyOptcumulative(), applyRepair(), applyVbounds(), checkSystemGF2(), AMPLProblemHandler::cleanup(), computeOffValues(), constructValidSolution(), createNewSol(), createSolFromSubScipSol(), DECL_VARFIXINGS(), enforceCardinality(), freeComponent(), freeMemory(), freeProblem(), fromCommandLine(), generateIntercut(), heurExec(), performInteriorSolCutStrengthening(), proposeFeasibleSolution(), readMst(), readSol(), resolveNLPWithTighterFeastol(), sampleRandomPoints(), SCIP_DECL_CONSCHECK(), SCIP_DECL_CONSENFOLP(), SCIP_DECL_CONSENFOPS(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_HEUREXIT(), SCIP_DECL_HEUREXITSOL(), SCIP_DECL_NLHDLRENFO(), SCIP_DECL_NLHDLREXIT(), SCIP_DECL_NLHDLRINITSEPA(), SCIP_DECL_SEPAEXECLP(), SCIP_DECL_SEPAEXITSOL(), SCIPaddNlRowGradientBenderscutOpt(), SCIPapplyHeurDualval(), SCIPapplyUndercover(), SCIPbendersExit(), SCIPbendersSolSlackVarsActive(), SCIPbendersSolveSubproblemLP(), SCIPheurPassSolAddSol(), SCIPheurPassSolTrySol(), SCIPheurSyncPassSol(), SCIPsetBasePointClosecuts(), SCIPtranslateSubSols(), SCIPtryStrongbranchLPSol(), SCIPupdateStartpointHeurSubNlp(), selectVarStart(), separateAlternativeProofs(), separateCuts(), setAndUpdateCorePoint(), setupAndSolve(), solveAndEvalSubscip(), solveComponent(), solveNLP(), solveSubproblem(), storeSolution(), and transferSolution().

◆ SCIPlinkLPSol()

SCIP_RETCODE SCIPlinkLPSol	(	SCIP *	scip,
		SCIP_SOL *	sol
	)

links a primal solution to the current LP 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:

SCIP_STAGE_SOLVING

Parameters

scip	SCIP data structure
sol	primal solution

Definition at line 882 of file scip_sol.c.

References FALSE, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIPcheckStage(), SCIPerrorMessage, SCIPlpIsSolved(), SCIPsolLinkLPSol(), and TRUE.

Referenced by applyBoundHeur(), applyVbounds(), getSolFromFacet(), performLPRandRounding(), performLPSimpleRounding(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_HEUREXEC(), SCIPperformGenericDivingAlgorithm(), solveLp(), tryOneOpt(), and trySolCandidate().

◆ SCIPlinkNLPSol()

SCIP_RETCODE SCIPlinkNLPSol	(	SCIP *	scip,
		SCIP_SOL *	sol
	)

links a primal solution to the current NLP 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:

SCIP_STAGE_SOLVING

Parameters

scip	SCIP data structure
sol	primal solution

Definition at line 908 of file scip_sol.c.

References FALSE, NULL, SCIP_CALL, SCIP_INVALIDCALL, SCIP_NLPSOLSTAT_FEASIBLE, SCIP_OKAY, SCIPcheckStage(), SCIPerrorMessage, SCIPnlpGetSolstat(), SCIPsolLinkNLPSol(), and TRUE.

Referenced by SCIP_DECL_HEUREXEC().

◆ SCIPlinkRelaxSol()

SCIP_RETCODE SCIPlinkRelaxSol	(	SCIP *	scip,
		SCIP_SOL *	sol
	)

links a primal solution to the current relaxation 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:

SCIP_STAGE_SOLVING

Parameters

scip	SCIP data structure
sol	primal solution

Definition at line 940 of file scip_sol.c.

References FALSE, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIPcheckStage(), SCIPerrorMessage, SCIPrelaxationIsSolValid(), SCIPsolLinkRelaxSol(), and TRUE.

Referenced by performRelaxSimpleRounding().

◆ SCIPlinkPseudoSol()

SCIP_RETCODE SCIPlinkPseudoSol	(	SCIP *	scip,
		SCIP_SOL *	sol
	)

links a primal solution to the current pseudo 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:

Parameters

scip	SCIP data structure
sol	primal solution

Definition at line 967 of file scip_sol.c.

References FALSE, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPsolLinkPseudoSol(), and TRUE.

◆ SCIPlinkCurrentSol()

SCIP_RETCODE SCIPlinkCurrentSol	(	SCIP *	scip,
		SCIP_SOL *	sol
	)

links a primal solution to the current LP or pseudo 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:

SCIP_STAGE_SOLVING

Parameters

scip	SCIP data structure
sol	primal solution

Definition at line 987 of file scip_sol.c.

References FALSE, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPsolLinkCurrentSol(), and TRUE.

◆ SCIPclearSol()

SCIP_RETCODE SCIPclearSol	(	SCIP *	scip,
		SCIP_SOL *	sol
	)

clears a primal 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:

Parameters

scip	SCIP data structure
sol	primal solution

Definition at line 1018 of file scip_sol.c.

References FALSE, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPsolClear(), and TRUE.

Referenced by sampleRandomPoints(), and SCIPtranslateSubSols().

◆ SCIPunlinkSol()

SCIP_RETCODE SCIPunlinkSol	(	SCIP *	scip,
		SCIP_SOL *	sol
	)

stores solution values of variables in solution's own array

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

Definition at line 1046 of file scip_sol.c.

References FALSE, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPsolUnlink(), and TRUE.

Referenced by constructValidSolution(), copyCurrentSolution(), performInteriorSolCutStrengthening(), proposeFeasibleSolution(), SCIP_DECL_HEUREXEC(), SCIPheurPassSolAddSol(), SCIPheurPassSolTrySol(), SCIPperformGenericDivingAlgorithm(), SCIPretransformSol(), SCIPupdateStartpointHeurSubNlp(), and setAndUpdateCorePoint().

◆ SCIPsetSolVal()

SCIP_RETCODE SCIPsetSolVal	(	SCIP *	scip,
		SCIP_SOL *	sol,
		SCIP_VAR *	var,
		SCIP_Real	val
	)

sets value of variable in primal CIP 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:

Parameters

scip	SCIP data structure
sol	primal solution
var	variable to add to solution
val	solution value of variable

Definition at line 1077 of file scip_sol.c.

References FALSE, SCIP_Var::scip, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIPcheckStage(), SCIPerrorMessage, SCIPsolIsOriginal(), SCIPsolSetVal(), SCIPvarGetName(), SCIPvarIsTransformed(), and TRUE.

Referenced by applyOptcumulative(), applyRepair(), assignVars(), buildConvexCombination(), checkCands(), checkSystemGF2(), componentSetupWorkingSol(), computeInteriorPoint(), constructSolution(), constructValidSolution(), createCGMIPprimalsols(), createNewSol(), createSolFromNLP(), createSolFromSubScipSol(), DECL_VARFIXINGS(), AMPLProblemHandler::EndInput(), enfopsCons(), estimateConvexSecant(), estimateGradient(), fixDiscreteVars(), generateCloseCutPoint(), getNLPFracVars(), getSolFromFacet(), heurExec(), improvePoint(), initializeSol(), initProblem(), makeSOS1conflictgraphFeasible(), makeSOS1constraintsFeasible(), notifyNlhdlrNewsol(), AMPLProblemHandler::OnInitialValue(), optimize(), performInteriorSolCutStrengthening(), performRandRounding(), performSimpleRounding(), polishPrimalSolution(), readSolFile(), readXmlSolFile(), reoptimize(), reuseSolution(), sampleRandomPoints(), SCIP_DECL_HEUREXEC(), SCIP_DECL_NLHDLRENFO(), SCIP_DECL_NLHDLRINITSEPA(), SCIP_DECL_VERTEXPOLYFUN(), SCIPaddNlRowGradientBenderscutOpt(), SCIPapplyHeurDualval(), SCIPcomputeLPRelIntPoint(), SCIPcreateFiniteSolCopy(), SCIPmakeIndicatorFeasible(), separateCuts(), setAndUpdateCorePoint(), setupAndSolve(), setupAndSolveSubscipOneopt(), setVarToNearestBound(), solveAndEvalSubscip(), solveComponent(), solveLagromoryLP(), solveLPWithHardCuts(), solveNLP(), startProbing(), updateSlacks(), and updateVariableRounding().

◆ SCIPsetSolVals()

SCIP_RETCODE SCIPsetSolVals	(	SCIP *	scip,
		SCIP_SOL *	sol,
		int	nvars,
		SCIP_VAR **	vars,
		SCIP_Real *	vals
	)

sets values of multiple variables in primal CIP 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:

Parameters

scip	SCIP data structure
sol	primal solution
nvars	number of variables to set solution value for
vars	array with variables to add to solution
vals	array with solution values of variables

Definition at line 1119 of file scip_sol.c.

References FALSE, NULL, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIPcheckStage(), SCIPerrorMessage, SCIPsolIsOriginal(), SCIPsolSetVal(), SCIPvarGetName(), SCIPvarIsTransformed(), and TRUE.

Referenced by computeOffValues(), createNewSol(), initConcsolver(), reuseSolution(), SCIP_DECL_CONCSOLVERCOPYSOLVINGDATA(), SCIP_DECL_CONCSOLVERSYNCREAD(), SCIPtranslateSubSol(), and SCIPtranslateSubSols().

◆ SCIPincSolVal()

SCIP_RETCODE SCIPincSolVal	(	SCIP *	scip,
		SCIP_SOL *	sol,
		SCIP_VAR *	var,
		SCIP_Real	incval
	)

increases value of variable in primal CIP 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:

Parameters

scip	SCIP data structure
sol	primal solution
var	variable to increase solution value for
incval	increment for solution value of variable

Definition at line 1174 of file scip_sol.c.

References FALSE, SCIP_Var::scip, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIPcheckStage(), SCIPerrorMessage, SCIPsolIncVal(), SCIPsolIsOriginal(), SCIPvarGetName(), SCIPvarIsTransformed(), and TRUE.

Referenced by proposeFeasibleSolution().

◆ SCIPgetSolVal()

SCIP_Real SCIPgetSolVal	(	SCIP *	scip,
		SCIP_SOL *	sol,
		SCIP_VAR *	var
	)

returns value of variable in primal CIP solution, or in current LP/pseudo solution

Returns: value of variable in primal CIP solution, or in current LP/pseudo solution

Precondition

In case the solution pointer sol is NULL, that means it is asked for the LP or pseudo solution, this method can only be called if scip is in the solving stage SCIP_STAGE_SOLVING. In any other case, this method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure
sol	primal solution, or NULL for current LP/pseudo solution
var	variable to get value for

Definition at line 1217 of file scip_sol.c.

References FALSE, NULL, SCIP_Var::scip, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPsolGetVal(), SCIPtreeHasCurrentNodeLP(), SCIPvarGetSol(), and TRUE.

Referenced by addBilinearTermToCut(), addBinaryConstraint(), addBranchingComplementaritiesSOS1(), addColToCut(), addCut(), addFacetToCut(), addLinearTermToCut(), addLocalBranchingConstraint(), addLocalbranchingConstraintAndObjcutoff(), addLowerBound(), addRltTerm(), addUpperBound(), analyzeViolation(), applyDomainReductions(), applyRepair(), branchBalancedCardinality(), branchingIntegralFirst(), branchOnVar(), branchUnbalancedCardinality(), buildConvexCombination(), buildMod2Matrix(), calcEfficacy(), calcEfficacyDenseStorageQuad(), calculateShift(), checkAndConss(), checkCands(), checkCons(), checkCumulativeCondition(), checkOrigPbCons(), checkSetupTolerances(), checkSymresackSolution(), checkSystemGF2(), chooseGuidedVar(), collectBranchingCands(), collectEstLst(), collectSolActivities(), collectSolution(), computeConvexEnvelopeFacet(), computeCut(), computeInitialKnapsackCover(), computeIntegerVariableBounds(), computeIntegerVariableBoundsDins(), computeNogoodCut(), computeStandardIntegerOptCut(), consdataCheckSuperindicator(), consdataGetActivity(), consPrintConsSol(), constructSNFRelaxation(), constructValidSolution(), copyValues(), createCGCutCMIR(), createCGCutDirect(), createCGCutStrongCG(), createNAryBranch(), createNewSol(), createProjRow(), createSelectedSortedEventpointsSol(), createSolFromSubScipSol(), createSortedEventpointsSol(), createSubproblem(), createSubscip(), CUTOFF_CONSTRAINT(), cutsTransformMIR(), DECL_CHANGESUBSCIP(), DECL_VARFIXINGS(), determineBestBounds(), determineBound(), determineBoundForSNF(), determineFixings(), determineVariableFixings(), scipexamples::QueensSolver::disp(), doPricing(), doSeachEcAggr(), enforceCardinality(), enforceConflictgraph(), enforceConssSOS1(), enforceConstraints(), enforceCuts(), enforceExpr(), enforceExprNlhdlr(), enforceIndicators(), enforceSol(), enforceSOS2(), estimateBivariateQuotient(), estimateConvexSecant(), estimateGradient(), estimateGradientInner(), estimateSpecialPower(), estimateUnivariateQuotient(), estimateVertexPolyhedral(), evalExprInAux(), executeHeuristic(), extendToCover(), extractVariablesMINLP(), findSubtour(), fixDiscreteVars(), fixMatchingSolutionValues(), fixVariables(), generateCloseCutPoint(), generateClusterCuts(), generateCut(), generateZerohalfCut(), getBestEstimators(), getBoundConsFromVertices(), getBranchingPrioritiesSOS1(), getBranchingVerticesSOS1(), getClosestVlb(), getClosestVub(), getDiveBdChgsSOS1conflictgraph(), getDiveBdChgsSOS1constraints(), getExprAbsAuxViolation(), getExprAbsOrigViolation(), getFixingValue(), getFixVal(), getNLPFracVars(), getPotential(), getPotentialContributed(), getRelDistance(), getSolutionValues(), getVectorOfWeights(), getViolSplitWeight(), handle1Cycle(), handleCycle(), heurExec(), improvePoint(), intercutsComputeCommonQuantities(), isConsViolated(), isPossibleToComputeCut(), isQuadConsViolated(), isSolFeasible(), isViolatedAndNotFixed(), isViolatedSOS1(), LOPseparate(), main(), makeSOS1conflictgraphFeasible(), makeSOS1constraintsFeasible(), markRowsXj(), maximalslack(), nodeGetSolvalBinaryBigMSOS1(), nodeGetSolvalVarboundLbSOS1(), nodeGetSolvalVarboundUbSOS1(), notifyNlhdlrNewsol(), optimize(), overEstimatePower(), performInteriorSolCutStrengthening(), performRandRounding(), polishPrimalSolution(), proposeFeasibleSolution(), registerBranchingCandidates(), reoptimize(), reuseSolution(), rowprepCleanupImproveCoefrange(), runBenders(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONSCHECK(), SCIP_DECL_CONSENFOLP(), SCIP_DECL_CONSENFOPS(), SCIP_DECL_CONSENFORELAX(), SCIP_DECL_CONSEXIT(), SCIP_DECL_CONSGETDIVEBDCHGS(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_DIVESETGETSCORE(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_EXPREVAL(), SCIP_DECL_EXPRFWDIFF(), SCIP_DECL_HEUREXEC(), SCIP_DECL_NLHDLRENFO(), SCIP_DECL_NLHDLRESTIMATE(), SCIP_DECL_NLHDLREVALAUX(), SCIP_DECL_NLHDLRSOLLINEARIZE(), SCIP_DECL_READERWRITE(), SCIP_DECL_RELAXEXEC(), SCIP_DECL_SEPAEXECLP(), SCIPaddTrustregionNeighborhoodConstraint(), SCIPapplyHeurDualval(), SCIPapplyHeurSubNlp(), SCIPapplyProximity(), SCIPbendersGetAuxiliaryVarVal(), SCIPbendersSetupSubproblem(), SCIPbendersSolSlackVarsActive(), SCIPcheckSolutionOrbisack(), SCIPcutGenerationHeuristicCMIR(), SCIPcycAddIncompleteSol(), SCIPcycPrintSolutionValues(), SCIPevalBilinAuxExprNonlinear(), SCIPevalExprQuadratic(), SCIPevalExprQuadraticAuxNonlinear(), SCIPgenerateAndApplyBendersOptCut(), SCIPgetRowprepViolation(), SCIPisViolatedIndicator(), SCIPmakeIndicatorFeasible(), SCIPperformGenericDivingAlgorithm(), SCIPprintRowprepSol(), SCIPprintSolReaderFzn(), SCIPprocessRowprepNonlinear(), SCIPseparateRelaxedKnapsack(), SCIPverifyCircularPatternNLP(), SCIPwriteCliqueGraph(), SCIPwriteSolutionNl(), scoreBranchingCandidates(), selectEssentialRounding(), selectNextDiving(), selectRounding(), selectShifting(), selectVarStart(), sepaImplBoundCutsSOS1(), separateCons(), separateCoversOrbisack(), separateCuts(), separateGLS(), separateHeur(), separateIndicators(), separateMcCormickImplicit(), separateOddCycles(), separatePerspective(), separatePoint(), sepaSubtour(), setAltLPObj(), setupAggregationData(), setupAndSolve(), setupAndSolveCumulativeSubscip(), setupAndSolveFiniteSolSubscip(), setupAndSolveSubscipOneopt(), setVarToNearestBound(), solCutIsViolated(), solveAndEvalSubscip(), solveComponent(), solveCoveringProblem(), solveLp(), solveNLP(), solveSubNLP(), sparsifyIntercut(), startProbing(), storeAggrFromMIP(), TCLIQUE_NEWSOL(), tightenVariables(), transformNonIntegralRow(), translateSubSol(), tryFixVar(), underEstimatePower(), updateBestCandidate(), updateSlacks(), updateVarVals(), updateWeightsTCliquegraph(), visualizeSolutionAscii(), visualizeSolutionGnuplot(), and visualizeSolutionMatplotlib().

◆ SCIPgetSolVals()

SCIP_RETCODE SCIPgetSolVals	(	SCIP *	scip,
		SCIP_SOL *	sol,
		int	nvars,
		SCIP_VAR **	vars,
		SCIP_Real *	vals
	)

gets values of multiple variables in primal CIP 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:

Parameters

scip	SCIP data structure
sol	primal solution, or NULL for current LP/pseudo solution
nvars	number of variables to get solution value for
vars	array with variables to get value for
vals	array to store solution values of variables

Definition at line 1254 of file scip_sol.c.

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

Referenced by alnsFixMoreVariables(), createNewSol(), initConcsolver(), LNSFixMoreVariables(), reoptimize(), reuseSolution(), SCIP_DECL_CONCSOLVERCOPYSOLVINGDATA(), SCIP_DECL_CONCSOLVERSYNCWRITE(), SCIP_DECL_CONSENFOLP(), SCIP_DECL_CONSENFORELAX(), SCIP_DECL_CONSSEPALP(), SCIP_DECL_CONSSEPASOL(), SCIP_DECL_HEUREXEC(), SCIP_DECL_SEPAEXECSOL(), SCIPcreateFiniteSolCopy(), SCIPseparateKnapsackCuts(), SCIPsetNLPInitialGuessSol(), SCIPsetRelaxSolValsSol(), and separateCuts().

◆ SCIPgetSolOrigObj()

SCIP_Real SCIPgetSolOrigObj	(	SCIP *	scip,
		SCIP_SOL *	sol
	)

returns objective value of primal CIP solution w.r.t. original problem, or current LP/pseudo objective value

Returns: objective value of primal CIP solution w.r.t. original problem, or current LP/pseudo objective value

Precondition

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

Parameters

scip	SCIP data structure
sol	primal solution, or NULL for current LP/pseudo objective value

Definition at line 1300 of file scip_sol.c.

References FALSE, NULL, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPlpGetObjval(), SCIPlpGetPseudoObjval(), SCIPprobExternObjval(), SCIPsolGetObj(), SCIPsolGetOrigObj(), SCIPsolIsOriginal(), SCIPtreeHasCurrentNodeLP(), and TRUE.

Referenced by applyBoundHeur(), applyOptcumulative(), applyRepair(), applyVbounds(), computeStandardIntegerOptCut(), createNewSol(), createSwitchSolution(), displayRelevantStats(), doPricing(), extractVariablesMINLP(), generateAndApplyBendersIntegerCuts(), presolve(), presolveRound(), reoptimize(), reuseSolution(), runBenders(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONCSOLVERSYNCWRITE(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_HEUREXEC(), SCIPapplyHeurDualval(), SCIPbendersComputeSubproblemLowerbound(), SCIPbendersExec(), SCIPbendersExecSubproblemSolve(), SCIPbendersSolveSubproblem(), SCIPbendersSolveSubproblemLP(), SCIPcreateFiniteSolCopy(), SCIPheurPassSolAddSol(), SCIPheurPassSolTrySol(), SCIPmakeSOS1sFeasible(), SCIPperformGenericDivingAlgorithm(), SCIPtransformProb(), SCIPtranslateSubSols(), SCIPvisualFoundSolution(), setupAndSolveSubscipRapidlearning(), solveAndEvalSubscip(), solveComponent(), solveCoveringProblem(), visualizeSolutionAscii(), visualizeSolutionGnuplot(), and visualizeSolutionMatplotlib().

◆ SCIPgetSolTransObj()

SCIP_Real SCIPgetSolTransObj	(	SCIP *	scip,
		SCIP_SOL *	sol
	)

returns transformed objective value of primal CIP solution, or transformed current LP/pseudo objective value

Returns: transformed objective value of primal CIP solution, or transformed current LP/pseudo objective value

Precondition

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

Parameters

scip	SCIP data structure
sol	primal solution, or NULL for current LP/pseudo objective value

Definition at line 1347 of file scip_sol.c.

References FALSE, NULL, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPlpGetObjval(), SCIPlpGetPseudoObjval(), SCIPsolGetObj(), SCIPtreeHasCurrentNodeLP(), and TRUE.

Referenced by addTrustRegionConstraints(), applyHeur(), isDisplaySol(), proposeFeasibleSolution(), sampleRandomPoints(), SCIP_DECL_HEUREXEC(), SCIP_DECL_SEPAEXECSOL(), SCIPapplyProximity(), SCIPheurSyncPassSol(), SCIPtranslateSubSols(), SCIPupdateStartpointHeurSubNlp(), SCIPvisualFoundSolution(), separateCuts(), solveComponent(), transferSolution(), tryOneOpt(), trySolCandidate(), and updateSubproblemLowerbound().

◆ SCIPrecomputeSolObj()

SCIP_RETCODE SCIPrecomputeSolObj	(	SCIP *	scip,
		SCIP_SOL *	sol
	)

recomputes the objective value of an original solution, e.g., when transferring solutions from the solution pool (objective coefficients might have changed in the meantime)

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:

Definition at line 1378 of file scip_sol.c.

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

Referenced by SCIP_DECL_HEUREXEC().

◆ SCIPtransformObj()

SCIP_Real SCIPtransformObj	(	SCIP *	scip,
		SCIP_Real	obj
	)

maps original space objective value into transformed objective value

Returns: transformed objective value

Precondition

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

Parameters

scip	SCIP data structure
obj	original space objective value to transform

Definition at line 1407 of file scip_sol.c.

References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPprobInternObjval(), and TRUE.

Referenced by SCIP_DECL_DIALOGEXEC(), and SCIPsetObjlimit().

◆ SCIPretransformObj()

SCIP_Real SCIPretransformObj	(	SCIP *	scip,
		SCIP_Real	obj
	)

maps transformed objective value into original space

Returns: objective value into original space

Precondition

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

Parameters

scip	SCIP data structure
obj	transformed objective value to retransform in original space

Definition at line 1432 of file scip_sol.c.

References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPprobExternObjval(), and TRUE.

Referenced by calcGap(), SCIP_DECL_DISPOUTPUT(), SCIP_DECL_HEUREXEC(), SCIPbendersComputeSubproblemLowerbound(), SCIPbendersSolveSubproblemLP(), SCIPperformGenericDivingAlgorithm(), SCIPprintRootStatistics(), SCIPprintSolutionStatistics(), SCIPvisualCutoffNode(), SCIPvisualLowerbound(), SCIPvisualNewChild(), SCIPvisualSolvedNode(), SCIPvisualUpdateChild(), SCIPvisualUpperbound(), setupAndSolveSubscipRapidlearning(), setupSubScip(), solveComponent(), and writeExpandedSolutions().

◆ SCIPgetSolTime()

SCIP_Real SCIPgetSolTime	(	SCIP *	scip,
		SCIP_SOL *	sol
	)

gets clock time, when this solution was found

Returns: clock time, when this solution was found

Precondition

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

Parameters

scip	SCIP data structure
sol	primal solution

Definition at line 1459 of file scip_sol.c.

References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPsolGetTime(), and TRUE.

◆ SCIPgetSolRunnum()

int SCIPgetSolRunnum	(	SCIP *	scip,
		SCIP_SOL *	sol
	)

gets branch and bound run number, where this solution was found

Returns: branch and bound run number, where this solution was found

Precondition

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

Parameters

scip	SCIP data structure
sol	primal solution

Definition at line 1486 of file scip_sol.c.

References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPsolGetRunnum(), and TRUE.

◆ SCIPgetSolNodenum()

SCIP_Longint SCIPgetSolNodenum	(	SCIP *	scip,
		SCIP_SOL *	sol
	)

gets node number of the specific branch and bound run, where this solution was found

Returns: node number of the specific branch and bound run, where this solution was found

Precondition

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

Parameters

scip	SCIP data structure
sol	primal solution

Definition at line 1513 of file scip_sol.c.

References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPsolGetNodenum(), and TRUE.

Referenced by SCIP_DECL_HEUREXEC().

◆ SCIPgetSolHeur()

SCIP_HEUR * SCIPgetSolHeur	(	SCIP *	scip,
		SCIP_SOL *	sol
	)

gets heuristic, that found this solution (or NULL if it's from the tree)

Returns: heuristic, that found this solution (or NULL if it's from the tree)

Precondition

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

Parameters

scip	SCIP data structure
sol	primal solution

Definition at line 1540 of file scip_sol.c.

References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPsolGetHeur(), and TRUE.

Referenced by determineVariableFixings(), SCIP_DECL_DISPOUTPUT(), SCIP_DECL_EVENTEXEC(), and SCIPupdateStartpointHeurSubNlp().

◆ SCIPareSolsEqual()

SCIP_Bool SCIPareSolsEqual	(	SCIP *	scip,
		SCIP_SOL *	sol1,
		SCIP_SOL *	sol2
	)

returns whether two given solutions are exactly equal

Returns: returns whether two given solutions are exactly equal

Precondition

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

Parameters

scip	SCIP data structure
sol1	first primal CIP solution
sol2	second primal CIP solution

Definition at line 1568 of file scip_sol.c.

References FALSE, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPsolsAreEqual(), and TRUE.

◆ SCIPadjustImplicitSolVals()

SCIP_RETCODE SCIPadjustImplicitSolVals	(	SCIP *	scip,
		SCIP_SOL *	sol,
		SCIP_Bool	uselprows
	)

adjusts solution values of implicit integer variables in handed solution. Solution objective value is not deteriorated by this method.

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_SOLVING

Parameters

scip	SCIP data structure
sol	primal CIP solution
uselprows	should LP row information be considered for none-objective variables

Definition at line 1588 of file scip_sol.c.

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

Referenced by performSimpleRounding().

◆ SCIPprintSol()

SCIP_RETCODE SCIPprintSol	(	SCIP *	scip,
		SCIP_SOL *	sol,
		FILE *	file,
		SCIP_Bool	printzeros
	)

outputs non-zero variables of solution in original problem space to the given file stream

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

In case the solution pointer sol is NULL (askinking for the current LP/pseudo solution), this method can be called if scip is in one of the following stages:

In case the solution pointer sol is not NULL, this method can be called if scip is in one of the following stages:

outputs non-zero variables of solution in original problem space to the given file stream

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

In case the solution pointer sol is NULL (asking for the current LP/pseudo solution), this method can be called if scip is in one of the following stages:

In case the solution pointer sol is not NULL, this method can be called if scip is in one of the following stages:

Parameters

scip	SCIP data structure
sol	primal solution, or NULL for current LP/pseudo solution
file	output file (or NULL for standard output)
printzeros	should variables set to zero be printed?

Definition at line 1631 of file scip_sol.c.

References FALSE, NULL, SCIP_Bool, SCIP_CALL, SCIP_OKAY, SCIP_Real, SCIPcheckStage(), SCIPisTransformed(), SCIPmessageFPrintInfo(), SCIPmessagehdlrIsQuiet(), SCIPmessagehdlrSetQuiet(), SCIPprintReal(), SCIPprobExternObjval(), SCIPsolCreateCurrentSol(), SCIPsolFree(), SCIPsolGetObj(), SCIPsolGetOrigObj(), SCIPsolIsOriginal(), SCIPsolIsPartial(), SCIPsolPrint(), and TRUE.

Referenced by checkSystemGF2(), createCGCutDirect(), doPricing(), enforceConstraint(), enforceSol(), fromCommandLine(), performRandRounding(), performSimpleRounding(), resolveNLPWithTighterFeastol(), runBrachistochrone(), runPacking(), runSpring(), SCIP_DECL_CONSENFOLP(), SCIP_DECL_CONSSEPALP(), SCIP_DECL_CONSSEPASOL(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_HEUREXEC(), SCIPbendersExec(), SCIPbendersSolveSubproblemLP(), SCIPcreateFiniteSolCopy(), SCIPprintBestSol(), SCIPwriteSolutionNl(), searchEcAggrWithMIP(), separateCuts(), solveCoveringProblem(), and trySolCandidate().

◆ SCIPprintTransSol()

SCIP_RETCODE SCIPprintTransSol	(	SCIP *	scip,
		SCIP_SOL *	sol,
		FILE *	file,
		SCIP_Bool	printzeros
	)

outputs non-zero variables of solution in transformed problem space to file stream

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, or NULL for current LP/pseudo solution
file	output file (or NULL for standard output)
printzeros	should variables set to zero be printed?

Definition at line 1713 of file scip_sol.c.

References FALSE, NULL, SCIP_Bool, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIPcheckStage(), SCIPerrorMessage, SCIPmessageFPrintInfo(), SCIPprintReal(), SCIPsolCreateCurrentSol(), SCIPsolFree(), SCIPsolGetObj(), SCIPsolIsOriginal(), SCIPsolPrint(), and TRUE.

Referenced by SCIP_DECL_NLHDLRENFO(), and SCIPprintBestTransSol().

◆ SCIPprintMIPStart()

SCIP_RETCODE SCIPprintMIPStart	(	SCIP *	scip,
		SCIP_SOL *	sol,
		FILE *	file
	)

outputs discrete variables of solution in original problem space to the given file stream

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
file	output file (or NULL for standard output)

Definition at line 1770 of file scip_sol.c.

References FALSE, NULL, SCIP_Bool, SCIP_CALL, SCIP_OKAY, SCIP_Real, SCIPcheckStage(), SCIPmessageFPrintInfo(), SCIPmessagehdlrIsQuiet(), SCIPmessagehdlrSetQuiet(), SCIPprintReal(), SCIPprobExternObjval(), SCIPsolGetObj(), SCIPsolGetOrigObj(), SCIPsolIsOriginal(), SCIPsolIsPartial(), SCIPsolPrint(), and TRUE.

Referenced by SCIP_DECL_DIALOGEXEC().

◆ SCIPgetDualSolVal()

SCIP_RETCODE SCIPgetDualSolVal	(	SCIP *	scip,
		SCIP_CONS *	cons,
		SCIP_Real *	dualsolval,
		SCIP_Bool *	boundconstraint
	)

returns dual solution value of a constraint

Parameters

scip	SCIP data structure
cons	constraint for which the dual solution should be returned
dualsolval	pointer to store the dual solution value
boundconstraint	pointer to store whether the constraint is a bound constraint (or NULL)

Definition at line 1812 of file scip_sol.c.

References NULL, SCIP_Bool, SCIP_CALL, SCIP_INVALID, SCIP_OBJSENSE_MAXIMIZE, SCIP_OKAY, SCIP_Real, SCIPconsGetHdlr(), SCIPconsGetNVars(), SCIPconsGetTransformed(), SCIPconshdlrGetName(), SCIPconsIsTransformed(), SCIPgetDualsolLinear(), SCIPgetLhsLinear(), SCIPgetObjsense(), SCIPgetRhsLinear(), SCIPgetValsLinear(), SCIPgetVarRedcost(), SCIPgetVarsLinear(), SCIPsetIsEQ(), and SCIPvarGetLPSol().

Referenced by printDualSol().

◆ SCIPisDualSolAvailable()

SCIP_Bool SCIPisDualSolAvailable	(	SCIP *	scip,
		SCIP_Bool	printreason
	)

check whether the dual solution is available

Note: This is used when calling SCIPprintDualSol()

Returns: is dual solution available?

Precondition

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

SCIP_STAGE_SOLVED

Parameters

scip	SCIP data structure
printreason	print warning message if dualsol is not available?

Definition at line 1938 of file scip_sol.c.

References FALSE, NULL, SCIP_CALL_ABORT, SCIP_STAGE_SOLVED, SCIPcheckStage(), SCIPconsGetHdlr(), SCIPconshdlrGetName(), SCIPgetStage(), SCIPmessageFPrintInfo(), SCIPwarningMessage(), and TRUE.

Referenced by SCIPprintDualSol().

◆ SCIPprintDualSol()

SCIP_RETCODE SCIPprintDualSol	(	SCIP *	scip,
		FILE *	file,
		SCIP_Bool	printzeros
	)

outputs dual solution from LP solver to file stream

Note: This only works if no presolving has been performed, which can be checked by calling method SCIPhasPerformedPresolve().

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_SOLVED

outputs dual solution from LP solver to file stream

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 in all stages but only prints dual information when called in SCIP_STAGE_SOLVED

Parameters

scip	SCIP data structure
file	output file (or NULL for standard output)
printzeros	should variables set to zero be printed?

Definition at line 2001 of file scip_sol.c.

References printDualSol(), SCIP_CALL, SCIP_OKAY, SCIPisDualSolAvailable(), and TRUE.

Referenced by SCIP_DECL_DIALOGEXEC().

◆ SCIPprintRay()

SCIP_RETCODE SCIPprintRay	(	SCIP *	scip,
		SCIP_SOL *	sol,
		FILE *	file,
		SCIP_Bool	printzeros
	)

outputs non-zero variables of solution representing a ray in original problem space to file stream

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 representing ray
file	output file (or NULL for standard output)
printzeros	should variables set to zero be printed?

Definition at line 2034 of file scip_sol.c.

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

Referenced by setupAndSolve(), and updatePrimalRay().

◆ SCIPgetNSols()

int SCIPgetNSols ( SCIP * scip )

gets number of feasible primal solutions stored in the solution storage in case the problem is transformed; in case the problem stage is SCIP_STAGE_PROBLEM, the number of solution in the original solution candidate storage is returned

Returns: number of feasible primal solutions stored in the solution storage in case the problem is transformed; or number of solution in the original solution candidate storage if the problem stage is SCIP_STAGE_PROBLEM

Precondition

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

Parameters

scip	SCIP data structure

Definition at line 2070 of file scip_sol.c.

References FALSE, SCIP_CALL_ABORT, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_EXITSOLVE, 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, SCIPABORT, SCIPcheckStage(), SCIPerrorMessage, and TRUE.

Referenced by applyHeur(), applyRepair(), checkEstimateCriterion(), checkLogCriterion(), checkRankOneTransition(), createCGCuts(), createNLP(), createSubproblem(), DECL_VARFIXINGS(), determineSolvingPhase(), determineVariableFixings(), doPricing(), doSolveSubMIP(), executeDivingHeuristic(), extractVariablesMINLP(), initConcsolver(), initializeCandsLists(), presolve(), presolveRound(), reoptimize(), reuseSolution(), runBrachistochrone(), runPacking(), runSpring(), SCIP_DECL_CONCSOLVERCOPYSOLVINGDATA(), SCIP_DECL_CONCSOLVERSYNCWRITE(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_DIVESETAVAILABLE(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_SEPAEXECLP(), SCIPapplyHeurSubNlp(), SCIPapplyProximity(), SCIPapplyRedSize(), SCIPtranslateSubSols(), SCIPvalidateSolve(), SCIPverifyCircularPatternNLP(), searchEcAggrWithMIP(), selectSolsRandomized(), setupAndSolve(), setupAndSolveSubscip(), setupAndSolveSubscipCrossover(), setupAndSolveSubscipRapidlearning(), solveAndEvalSubscip(), solveCoveringProblem(), solveSubNLP(), solveSubproblem(), solveSubscipLpface(), storeAggrFromMIP(), transformSols(), and wrapperDins().

◆ SCIPgetSols()

SCIP_SOL ** SCIPgetSols ( SCIP * scip )

gets array of feasible primal solutions stored in the solution storage in case the problem is transformed; in case if the problem stage is in SCIP_STAGE_PROBLEM, it returns the number array of solution candidate stored

Returns: array of feasible primal solutions

Precondition

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

Parameters

scip	SCIP data structure

Definition at line 2119 of file scip_sol.c.

References FALSE, NULL, SCIP_CALL_ABORT, 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, and TRUE.

Referenced by createCGCuts(), DECL_VARFIXINGS(), determineVariableFixings(), doPricing(), doSolveSubMIP(), fixVariables(), reuseSolution(), SCIP_DECL_CONCSOLVERCOPYSOLVINGDATA(), SCIP_DECL_CONCSOLVERSYNCWRITE(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_HEUREXEC(), SCIPapplyRedSize(), SCIPtranslateSubSols(), selectSolsRandomized(), setupAndSolve(), setupAndSolveSubscip(), setupAndSolveSubscipCrossover(), setupAndSolveSubscipRapidlearning(), solveSubNLP(), solveSubproblem(), and transformSols().

◆ SCIPgetBestSol()

SCIP_SOL * SCIPgetBestSol ( SCIP * scip )

gets best feasible primal solution found so far if the problem is transformed; in case the problem is in SCIP_STAGE_PROBLEM it returns the best solution candidate, or NULL if no solution has been found or the candidate store is empty;

Returns: best feasible primal solution so far

Precondition

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

Parameters

scip	SCIP data structure

Definition at line 2169 of file scip_sol.c.

References FALSE, NULL, SCIP_CALL_ABORT, 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, and TRUE.

Referenced by addLocalBranchingConstraint(), addLocalbranchingConstraintAndObjcutoff(), addTrustRegionConstraints(), applyHeur(), applyRepair(), calculateShift(), computeIntegerVariableBounds(), computeIntegerVariableBoundsDins(), computeStandardIntegerOptCut(), createSubscip(), createSwitchSolution(), DECL_CHANGESUBSCIP(), DECL_NHREFSOL(), DECL_VARFIXINGS(), decompHorizonBlockUsedRecently(), decompHorizonGetFirstPosBestPotential(), decompHorizonNext(), determineFixings(), determineVariableFixings(), determineVariableFixingsDecomp(), scipexamples::QueensSolver::disp(), displayRelevantStats(), execRelpscost(), executeDivingHeuristic(), extractVariablesMINLP(), fixAndPropagate(), fromCommandLine(), getFixingValue(), initConcsolver(), main(), maximalslack(), performInteriorSolCutStrengthening(), presolve(), presolveRound(), reoptimize(), runBenders(), runBrachistochrone(), runPacking(), runSpring(), SCIP_DECL_CONSEXIT(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_DISPINITSOL(), SCIP_DECL_DISPOUTPUT(), SCIP_DECL_DIVESETAVAILABLE(), SCIP_DECL_DIVESETGETSCORE(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_READERWRITE(), SCIP_DECL_RELAXEXEC(), SCIP_DECL_SEPAEXECLP(), SCIPaddCurrentSol(), SCIPaddSol(), SCIPaddSolFree(), SCIPaddTrustregionNeighborhoodConstraint(), SCIPapplyHeurDualval(), SCIPapplyProximity(), SCIPbendersExecSubproblemSolve(), SCIPbendersSolSlackVarsActive(), SCIPbendersSolveSubproblem(), SCIPprintBestSol(), SCIPprintBestTransSol(), SCIPtransformProb(), SCIPtryCurrentSol(), SCIPtrySol(), SCIPtrySolFree(), SCIPvalidateSolve(), SCIPverifyCircularPatternNLP(), SCIPwriteSolutionNl(), scoring(), searchEcAggrWithMIP(), selectInitialVariableDecomposition(), selectInitialVariableRandomly(), setAndUpdateCorePoint(), setupAndSolve(), setupAndSolveCumulativeSubscip(), setupAndSolveFiniteSolSubscip(), setupAndSolveSubscipCrossover(), solveAndEvalSubscip(), solveComponent(), solveCoveringProblem(), solveSubscipLpface(), storeAggrFromMIP(), and transferSolution().

◆ SCIPprintBestSol()

SCIP_RETCODE SCIPprintBestSol	(	SCIP *	scip,
		FILE *	file,
		SCIP_Bool	printzeros
	)

outputs best feasible primal solution found so far to file stream

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:

outputs best feasible primal solution found so far to file stream

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
file	output file (or NULL for standard output)
printzeros	should variables set to zero be printed?

Definition at line 2235 of file scip_sol.c.

References FALSE, NULL, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPgetBestSol(), SCIPmessageFPrintInfo(), SCIPprintSol(), and TRUE.

Referenced by execmain(), fromCommandLine(), SCIP_DECL_DIALOGEXEC(), and solveSubscip().

◆ SCIPprintBestTransSol()

SCIP_RETCODE SCIPprintBestTransSol	(	SCIP *	scip,
		FILE *	file,
		SCIP_Bool	printzeros
	)

outputs best feasible primal solution found so far in transformed variables to file stream

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:

outputs best feasible primal solution found so far in transformed variables to file stream

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
file	output file (or NULL for standard output)
printzeros	should variables set to zero be printed?

Definition at line 2275 of file scip_sol.c.

References FALSE, NULL, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIPcheckStage(), SCIPerrorMessage, SCIPgetBestSol(), SCIPmessageFPrintInfo(), SCIPprintTransSol(), SCIPsolIsOriginal(), and TRUE.

Referenced by SCIP_DECL_DIALOGEXEC().

◆ SCIProundSol()

SCIP_RETCODE SCIProundSol	(	SCIP *	scip,
		SCIP_SOL *	sol,
		SCIP_Bool *	success
	)

try to round given 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:

SCIP_STAGE_SOLVING

Parameters

scip	SCIP data structure
sol	primal solution
success	pointer to store whether rounding was successful

Definition at line 2311 of file scip_sol.c.

References FALSE, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIPcheckStage(), SCIPerrorMessage, SCIPsolIsOriginal(), SCIPsolRound(), and TRUE.

Referenced by applyBoundHeur(), applyVbounds(), SCIP_DECL_HEUREXEC(), SCIPperformGenericDivingAlgorithm(), SCIPtryStrongbranchLPSol(), and solveNLP().

◆ SCIPretransformSol()

SCIP_RETCODE SCIPretransformSol	(	SCIP *	scip,
		SCIP_SOL *	sol
	)

retransforms solution to original problem 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:

retransforms solution to original problem 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:

Parameters

scip	SCIP data structure
sol	primal CIP solution

Definition at line 2347 of file scip_sol.c.

References FALSE, SCIP_Bool, SCIP_CALL, SCIP_ERROR, SCIP_INVALIDCALL, SCIP_OKAY, SCIP_SOLORIGIN_LPSOL, SCIP_SOLORIGIN_NLPSOL, SCIP_SOLORIGIN_ORIGINAL, SCIP_SOLORIGIN_PARTIAL, SCIP_SOLORIGIN_PSEUDOSOL, SCIP_SOLORIGIN_RELAXSOL, SCIP_SOLORIGIN_UNKNOWN, SCIP_SOLORIGIN_ZERO, SCIPcheckStage(), SCIPerrorMessage, SCIPsolGetOrigin(), SCIPsolRetransform(), SCIPunlinkSol(), and TRUE.

Referenced by fromCommandLine().

◆ SCIPreadSol()

SCIP_RETCODE SCIPreadSol	(	SCIP *	scip,
		const char *	filename
	)

reads a given solution 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	name of the input file

Definition at line 2405 of file scip_sol.c.

References FALSE, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPreadProb(), and TRUE.

◆ SCIPreadSolFile()

SCIP_RETCODE SCIPreadSolFile	(	SCIP *	scip,
		const char *	filename,
		SCIP_SOL *	sol,
		SCIP_Bool	xml,
		SCIP_Bool *	partial,
		SCIP_Bool *	error
	)

reads a given solution file and store the solution values in the given solution pointer

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	name of the input file
sol	solution pointer
xml	true, iff the given solution in written in XML
partial	pointer to store if the solution is partial
error	pointer store if an error occured

Definition at line 2751 of file scip_sol.c.

References FALSE, readSolFile(), readXmlSolFile(), SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), and TRUE.

Referenced by readMst(), readSol(), and SCIP_DECL_HEUREXEC().

◆ SCIPaddSol()

SCIP_RETCODE SCIPaddSol	(	SCIP *	scip,
		SCIP_SOL *	sol,
		SCIP_Bool *	stored
	)

adds feasible primal solution to solution storage by copying it

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: Do not call during propagation, use heur_trysol instead.

Parameters

scip	SCIP data structure
sol	primal CIP solution
stored	stores whether given solution was good enough to keep

Definition at line 2791 of file scip_sol.c.

References FALSE, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, 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, SCIPcheckStage(), SCIPerrorMessage, SCIPgetBestSol(), SCIPprimalAddOrigSol(), SCIPprimalAddSol(), SCIPsolIsOriginal(), SCIPstoreSolutionGap(), and TRUE.

Referenced by solveComponent().

◆ SCIPaddSolFree()

SCIP_RETCODE SCIPaddSolFree	(	SCIP *	scip,
		SCIP_SOL **	sol,
		SCIP_Bool *	stored
	)

adds primal solution to solution storage, frees the solution afterwards

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: Do not call during propagation, use heur_trysol instead.

Parameters

scip	SCIP data structure
sol	pointer to primal CIP solution; is cleared in function call
stored	stores whether given solution was good enough to keep

Definition at line 2855 of file scip_sol.c.

References FALSE, NULL, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, 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, SCIPcheckStage(), SCIPerrorMessage, SCIPgetBestSol(), SCIPprimalAddOrigSolFree(), SCIPprimalAddSolFree(), SCIPsolIsOriginal(), SCIPstoreSolutionGap(), and TRUE.

Referenced by applyRepair(), AMPLProblemHandler::EndInput(), initConcsolver(), readMst(), readSol(), reuseSolution(), SCIP_DECL_CONCSOLVERCOPYSOLVINGDATA(), SCIP_DECL_HEUREXEC(), and SCIPtranslateSubSols().

◆ SCIPaddCurrentSol()

SCIP_RETCODE SCIPaddCurrentSol	(	SCIP *	scip,
		SCIP_HEUR *	heur,
		SCIP_Bool *	stored
	)

adds current LP/pseudo solution to solution storage

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
heur	heuristic that found the solution
stored	stores whether given solution was good enough to keep

Definition at line 2914 of file scip_sol.c.

References FALSE, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPgetBestSol(), SCIPprimalAddCurrentSol(), SCIPstoreSolutionGap(), and TRUE.

◆ SCIPtrySol()

SCIP_RETCODE SCIPtrySol	(	SCIP *	scip,
		SCIP_SOL *	sol,
		SCIP_Bool	printreason,
		SCIP_Bool	completely,
		SCIP_Bool	checkbounds,
		SCIP_Bool	checkintegrality,
		SCIP_Bool	checklprows,
		SCIP_Bool *	stored
	)

checks solution for feasibility; if possible, adds it to storage by copying

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: Do not call during propagation, use heur_trysol instead.

Parameters

scip	SCIP data structure
sol	primal CIP solution
printreason	Should all reasons of violation be printed?
completely	Should all violations be checked if printreason is true?
checkbounds	Should the bounds of the variables be checked?
checkintegrality	Has integrality to be checked?
checklprows	Do constraints represented by rows in the current LP have to be checked?
stored	stores whether given solution was feasible and good enough to keep

Definition at line 2954 of file scip_sol.c.

References FALSE, NULL, SCIP_Bool, SCIP_CALL, SCIP_INVALIDDATA, SCIP_OKAY, SCIPABORT, SCIPcheckStage(), SCIPerrorMessage, SCIPgetBestSol(), SCIPprimalAddSol(), SCIPprimalTrySol(), SCIPsolCheckOrig(), SCIPsolIsOriginal(), SCIPsolIsPartial(), SCIPstoreSolutionGap(), and TRUE.

Referenced by applyBoundHeur(), applyVbounds(), createNewSol(), enforceCardinality(), performRandRounding(), performSimpleRounding(), SCIP_DECL_HEUREXEC(), SCIPperformGenericDivingAlgorithm(), solveLp(), and solveSubproblem().

◆ SCIPtrySolFree()

SCIP_RETCODE SCIPtrySolFree	(	SCIP *	scip,
		SCIP_SOL **	sol,
		SCIP_Bool	printreason,
		SCIP_Bool	completely,
		SCIP_Bool	checkbounds,
		SCIP_Bool	checkintegrality,
		SCIP_Bool	checklprows,
		SCIP_Bool *	stored
	)

checks primal solution; if feasible, adds it to storage; solution is freed afterwards

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: Do not call during propagation, use heur_trysol instead.

Parameters

scip	SCIP data structure
sol	pointer to primal CIP solution; is cleared in function call
printreason	Should all reasons of violations be printed
completely	Should all violations be checked if printreason is true?
checkbounds	Should the bounds of the variables be checked?
checkintegrality	Has integrality to be checked?
checklprows	Do constraints represented by rows in the current LP have to be checked?
stored	stores whether solution was feasible and good enough to keep

Definition at line 3050 of file scip_sol.c.

References FALSE, NULL, SCIP_Bool, SCIP_CALL, SCIP_INVALIDDATA, SCIP_OKAY, SCIPABORT, SCIPcheckStage(), SCIPerrorMessage, SCIPgetBestSol(), SCIPprimalAddSolFree(), SCIPprimalTrySolFree(), SCIPsolCheckOrig(), SCIPsolFree(), SCIPsolIsOriginal(), SCIPsolIsPartial(), SCIPstoreSolutionGap(), and TRUE.

Referenced by applyOptcumulative(), createCGMIPprimalsols(), createNewSol(), createSwitchSolution(), executeHeuristic(), heurExec(), presolve(), processNLPSol(), readSol(), reoptimize(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_HEUREXEC(), SCIPcycAddIncompleteSol(), SCIPtryStrongbranchLPSol(), setupAndSolve(), setupAndSolveSubscip(), setupAndSolveSubscipOneopt(), setupAndSolveSubscipRapidlearning(), solveSubNLP(), storeSolution(), transferSolution(), tryOneOpt(), and trySolCandidate().

◆ SCIPtryCurrentSol()

SCIP_RETCODE SCIPtryCurrentSol	(	SCIP *	scip,
		SCIP_HEUR *	heur,
		SCIP_Bool	printreason,
		SCIP_Bool	completely,
		SCIP_Bool	checkintegrality,
		SCIP_Bool	checklprows,
		SCIP_Bool *	stored
	)

checks current LP/pseudo solution for feasibility; if possible, adds it to storage

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
heur	heuristic that found the solution
printreason	Should all reasons of violations be printed?
completely	Should all violations be checked if printreason is true?
checkintegrality	Has integrality to be checked?
checklprows	Do constraints represented by rows in the current LP have to be checked?
stored	stores whether given solution was feasible and good enough to keep

Definition at line 3146 of file scip_sol.c.

References FALSE, SCIP_Bool, SCIP_CALL, SCIP_OKAY, SCIPABORT, SCIPcheckStage(), SCIPerrorMessage, SCIPgetBestSol(), SCIPprimalTryCurrentSol(), SCIPsolCheckOrig(), SCIPstoreSolutionGap(), and TRUE.

Referenced by SCIP_DECL_HEUREXEC().

◆ SCIPgetPartialSols()

SCIP_SOL ** SCIPgetPartialSols ( SCIP * scip )

returns all partial solutions

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

Definition at line 3202 of file scip_sol.c.

References FALSE, NULL, SCIP_CALL_ABORT, SCIPcheckStage(), and TRUE.

Referenced by SCIP_DECL_HEUREXEC().

◆ SCIPgetNPartialSols()

int SCIPgetNPartialSols ( SCIP * scip )

returns number of partial solutions

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

Definition at line 3224 of file scip_sol.c.

References FALSE, NULL, SCIP_CALL_ABORT, SCIPcheckStage(), and TRUE.

Referenced by SCIP_DECL_HEUREXEC().

◆ SCIPcheckSol()

SCIP_RETCODE SCIPcheckSol	(	SCIP *	scip,
		SCIP_SOL *	sol,
		SCIP_Bool	printreason,
		SCIP_Bool	completely,
		SCIP_Bool	checkbounds,
		SCIP_Bool	checkintegrality,
		SCIP_Bool	checklprows,
		SCIP_Bool *	feasible
	)

checks solution for feasibility without adding it to the solution store

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 CIP solution
printreason	Should all reasons of violations be printed?
completely	Should all violations be checked if printreason is true?
checkbounds	Should the bounds of the variables be checked?
checkintegrality	Has integrality to be checked?
checklprows	Do constraints represented by rows in the current LP have to be checked?
feasible	stores whether given solution is feasible

Definition at line 3251 of file scip_sol.c.

References FALSE, SCIP_CALL, SCIP_INVALIDDATA, SCIP_OKAY, SCIPcheckStage(), SCIPerrorMessage, SCIPsolCheck(), SCIPsolCheckOrig(), SCIPsolIsOriginal(), SCIPsolIsPartial(), and TRUE.

Referenced by applyVbounds(), checkSystemGF2(), constructValidSolution(), processNLPSol(), SCIP_DECL_HEUREXEC(), SCIPtranslateSubSols(), solveAndEvalSubscip(), solveComponent(), solveSubNLP(), and transferSolution().

◆ SCIPcheckSolOrig()

SCIP_RETCODE SCIPcheckSolOrig	(	SCIP *	scip,
		SCIP_SOL *	sol,
		SCIP_Bool *	feasible,
		SCIP_Bool	printreason,
		SCIP_Bool	completely
	)

checks solution for feasibility in original problem without adding it to the solution store; this method is used to double check a solution in order to validate the presolving process

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 CIP solution
feasible	stores whether given solution is feasible
printreason	should the reason for the violation be printed?
completely	Should all violations be checked if printreason is true?

Definition at line 3309 of file scip_sol.c.

References FALSE, NULL, SCIP_CALL, SCIP_INVALIDDATA, SCIP_OKAY, SCIPcheckStage(), SCIPerrorMessage, SCIPsolCheckOrig(), SCIPsolIsPartial(), and TRUE.

Referenced by checkSolutionOrig(), displayRelevantStats(), doPricing(), SCIP_DECL_DIALOGEXEC(), SCIPsolveCIP(), SCIPvalidateSolve(), solveAndEvalSubscip(), and solveComponent().

◆ SCIPupdateSolIntegralityViolation()

void SCIPupdateSolIntegralityViolation	(	SCIP *	scip,
		SCIP_SOL *	sol,
		SCIP_Real	absviol
	)

update integrality violation of a solution

Parameters

scip	SCIP data structure
sol	primal CIP solution
absviol	absolute violation

Definition at line 94 of file scip_sol.c.

References SCIPprimalUpdateViolations(), and SCIPsolUpdateIntegralityViolation().

Referenced by SCIP_DECL_CONSCHECK().

◆ SCIPupdateSolBoundViolation()

void SCIPupdateSolBoundViolation	(	SCIP *	scip,
		SCIP_SOL *	sol,
		SCIP_Real	absviol,
		SCIP_Real	relviol
	)

update bound violation of a solution

Parameters

scip	SCIP data structure
sol	primal CIP solution
absviol	absolute violation
relviol	relative violation

Definition at line 105 of file scip_sol.c.

References SCIPprimalUpdateViolations(), and SCIPsolUpdateBoundViolation().

◆ SCIPupdateSolLPRowViolation()

void SCIPupdateSolLPRowViolation	(	SCIP *	scip,
		SCIP_SOL *	sol,
		SCIP_Real	absviol,
		SCIP_Real	relviol
	)

update LP row violation of a solution

Parameters

scip	SCIP data structure
sol	primal CIP solution
absviol	absolute violation
relviol	relative violation

Definition at line 117 of file scip_sol.c.

References SCIPprimalUpdateViolations(), and SCIPsolUpdateLPRowViolation().

◆ SCIPupdateSolConsViolation()

void SCIPupdateSolConsViolation	(	SCIP *	scip,
		SCIP_SOL *	sol,
		SCIP_Real	absviol,
		SCIP_Real	relviol
	)

update constraint violation of a solution

Parameters

scip	SCIP data structure
sol	primal CIP solution
absviol	absolute violation
relviol	relative violation

Definition at line 129 of file scip_sol.c.

References SCIPprimalUpdateViolations(), and SCIPsolUpdateConsViolation().

Referenced by checkAllConss(), checkCons(), checkCumulativeCondition(), checkOrigPbCons(), isConsViolated(), and SCIP_DECL_CONSCHECK().

◆ SCIPupdateSolLPConsViolation()

void SCIPupdateSolLPConsViolation	(	SCIP *	scip,
		SCIP_SOL *	sol,
		SCIP_Real	absviol,
		SCIP_Real	relviol
	)

update LP row and constraint violations of a solution

Parameters

scip	SCIP data structure
sol	primal CIP solution
absviol	absolute violation
relviol	relative violation

Definition at line 141 of file scip_sol.c.

References SCIPprimalUpdateViolations(), and SCIPsolUpdateLPConsViolation().

Referenced by checkCons(), and isConsViolated().

◆ SCIPactivateSolViolationUpdates()

void SCIPactivateSolViolationUpdates ( SCIP * scip )

allow violation updates

Parameters

scip	SCIP data structure

Definition at line 153 of file scip_sol.c.

References SCIPprimalSetUpdateViolations(), and TRUE.

Referenced by checkCons().

◆ SCIPdeactivateSolViolationUpdates()

void SCIPdeactivateSolViolationUpdates ( SCIP * scip )

disallow violation updates

Parameters

scip	SCIP data structure

Definition at line 161 of file scip_sol.c.

References FALSE, and SCIPprimalSetUpdateViolations().

Referenced by checkCons().

◆ SCIPhasPrimalRay()

SCIP_Bool SCIPhasPrimalRay ( SCIP * scip )

return whether a primal ray is stored that proves unboundedness of the LP relaxation

Returns: return whether a primal ray is stored that proves unboundedness of the LP relaxation

Precondition

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

Parameters

scip	SCIP data structure

Definition at line 3348 of file scip_sol.c.

References FALSE, NULL, SCIP_CALL_ABORT, SCIPcheckStage(), and TRUE.

Referenced by setupAndSolve().

◆ SCIPgetPrimalRayVal()

SCIP_Real SCIPgetPrimalRayVal	(	SCIP *	scip,
		SCIP_VAR *	var
	)

gets value of given variable in primal ray causing unboundedness of the LP relaxation; should only be called if such a ray is stored (check with SCIPhasPrimalRay())

Returns: value of given variable in primal ray causing unboundedness of the LP relaxation

Precondition

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

Parameters

scip	SCIP data structure
var	variable to get value for

Definition at line 3366 of file scip_sol.c.

References FALSE, NULL, SCIP_Var::scip, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPsolGetRayVal(), and TRUE.

Referenced by setupAndSolve().

◆ SCIPupdatePrimalRay()

SCIP_RETCODE SCIPupdatePrimalRay	(	SCIP *	scip,
		SCIP_SOL *	primalray
	)

updates the primal ray thats proves unboundedness

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:

See SCIP_STAGE for a complete list of all possible solving stages.

Parameters

scip	SCIP data structure
primalray	the new primal ray

Definition at line 3393 of file scip_sol.c.

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

Referenced by setupAndSolve().

SCIP

Detailed Description

Functions

Function Documentation

◆ SCIPsolGetOrigin()

◆ SCIPsolIsOriginal()

◆ SCIPsolIsPartial()

◆ SCIPsolGetOrigObj()

◆ SCIPsolGetTime()

◆ SCIPsolGetRunnum()

◆ SCIPsolGetNodenum()

◆ SCIPsolGetDepth()

◆ SCIPsolGetType()

◆ SCIPsolGetHeur()

◆ SCIPsolGetRelax()

◆ SCIPsolSetHeur()

◆ SCIPsolSetRelax()

◆ SCIPsolSetLPRelaxation()

◆ SCIPsolSetStrongbranching()

◆ SCIPsolSetPseudo()

◆ SCIPsolGetIndex()

◆ SCIPsolGetAbsBoundViolation()

◆ SCIPsolGetRelBoundViolation()

◆ SCIPsolGetAbsIntegralityViolation()

◆ SCIPsolGetAbsLPRowViolation()

◆ SCIPsolGetRelLPRowViolation()

◆ SCIPsolGetAbsConsViolation()

◆ SCIPsolGetRelConsViolation()

◆ SCIPcreateSol()

◆ SCIPcreateLPSol()

◆ SCIPcreateNLPSol()

◆ SCIPcreateRelaxSol()

◆ SCIPcreatePseudoSol()

◆ SCIPcreateCurrentSol()

◆ SCIPcreatePartialSol()

◆ SCIPcreateUnknownSol()

◆ SCIPcreateOrigSol()

◆ SCIPcreateSolCopy()

◆ SCIPcreateSolCopyOrig()

◆ SCIPcreateFiniteSolCopy()

◆ SCIPfreeSol()

◆ SCIPlinkLPSol()

◆ SCIPlinkNLPSol()

◆ SCIPlinkRelaxSol()

◆ SCIPlinkPseudoSol()

◆ SCIPlinkCurrentSol()

◆ SCIPclearSol()

◆ SCIPunlinkSol()

◆ SCIPsetSolVal()

◆ SCIPsetSolVals()

◆ SCIPincSolVal()

◆ SCIPgetSolVal()

◆ SCIPgetSolVals()

◆ SCIPgetSolOrigObj()

◆ SCIPgetSolTransObj()

◆ SCIPrecomputeSolObj()

◆ SCIPtransformObj()

◆ SCIPretransformObj()

◆ SCIPgetSolTime()

◆ SCIPgetSolRunnum()

◆ SCIPgetSolNodenum()

◆ SCIPgetSolHeur()

◆ SCIPareSolsEqual()

◆ SCIPadjustImplicitSolVals()

◆ SCIPprintSol()

◆ SCIPprintTransSol()

◆ SCIPprintMIPStart()

◆ SCIPgetDualSolVal()

◆ SCIPisDualSolAvailable()

◆ SCIPprintDualSol()

◆ SCIPprintRay()

◆ SCIPgetNSols()

◆ SCIPgetSols()

◆ SCIPgetBestSol()

◆ SCIPprintBestSol()

◆ SCIPprintBestTransSol()

◆ SCIProundSol()

◆ SCIPretransformSol()

◆ SCIPreadSol()

◆ SCIPreadSolFile()