Reference · 2.0 development

Solver settings

Generated from the SHOTpy build used for this documentation. Backend availability and defaults can depend on build configuration.

Dual strategy

These settings control the various functionality of the dual strategy in SHOT, i.e., the polyhedral outer approximation utilizing the ESH or ECP algorithms.

Name and description

Valid values

Default value

Dual.CutStrategy
Dual cut strategy
0: ESH 1: ECP 2: Only external (through callback)

{0,…,2}

0

Dual.TreeStrategy
The main strategy to use
0: Multi-tree 1: Single-tree

{0,1}

1

Convex Bounding

These settings control the convex bounding strategy that solves a MIP problem with all hyperplane cuts generated for convex constraints so far and ignoring those generated for nonconvex constraints. This will give a dual bound for the nonconvex problem.

Name and description

Valid values

Default value

Dual.ConvexBounding.IdleIterations
How often the convex bounding strategy should be executed. 0 = Every iteration with generated hyperplanes for nonconvexities, 1 = Every second iteration, etc.

{0,…,∞}

10

Dual.ConvexBounding.Use
Enable the convex bounding strategy for nonconvex problems

true/false

true

Extended supporting hyperplane method

These settings control various aspects of the ESH implementation, including the strategy to obtain the interior point.

Name and description

Valid values

Default value

Dual.ESH.InteriorPoint.CuttingPlane.ConstraintSelectionFactor
The fraction of violated constraints to generate cutting planes for

[0,1]

0.25

Dual.ESH.InteriorPoint.CuttingPlane.IterationLimit
Iteration limit for minimax cutting plane solver

{1,…,∞}

100

Dual.ESH.InteriorPoint.CuttingPlane.IterationLimitSubsolver
Iteration limit for minimization subsolver

{0,…,∞}

100

Dual.ESH.InteriorPoint.CuttingPlane.Reuse
Reuse valid cutting planes in main dual model

true/false

false

Dual.ESH.InteriorPoint.CuttingPlane.TerminationToleranceAbs
Absolute termination tolerance between LP and linesearch objective

[0,∞]

1

Dual.ESH.InteriorPoint.CuttingPlane.TerminationToleranceRel
Relative termination tolerance between LP and linesearch objective

[0,∞]

1

Dual.ESH.InteriorPoint.CuttingPlane.TimeLimit
Time limit for minimax solver

[0,∞]

10

Dual.ESH.InteriorPoint.MinimaxObjectiveLowerBound
Lower bound for minimax objective variable

[-∞,0]

-1000000000000

Dual.ESH.InteriorPoint.MinimaxObjectiveUpperBound
Upper bound for minimax objective variable

[-∞,∞]

0.1

Dual.ESH.InteriorPoint.Strategy
Strategy for finding ESH interior points
0: Use internal strategy 1: Only external (through callback)

{0,1}

0

Dual.ESH.InteriorPoint.UsePrimalSolution
Utilize primal solution as interior point
0: No 1: Add as new 2: Replace old 3: Use avarage

{0,…,3}

1

Dual.ESH.Rootsearch.ConstraintTolerance
Constraint tolerance for when not to add individual hyperplanes

[0,∞]

1e-08

Dual.ESH.Rootsearch.UniqueConstraints
Allow only one hyperplane per constraint per iteration

true/false

false

Dual.ESH.Rootsearch.UseMaxFunction
Perform rootsearch on max function, otherwise on individual constraints

true/false

false

Generated hyperplane cuts

These settings control how the cutting planes or supporting hyperplanes are generated.

Name and description

Valid values

Default value

Dual.HyperplaneCuts.ConstraintSelectionFactor
The fraction of violated constraints to generate supporting hyperplanes / cutting planes for

[0,1]

0.5

Dual.HyperplaneCuts.Delay
Add hyperplane cuts to model only after optimal MIP solution

true/false

true

Dual.HyperplaneCuts.MaxConstraintFactor
Rootsearch performed on constraints with values larger than this factor times the maximum value

[1e-06,1]

0.1

Dual.HyperplaneCuts.MaxPerIteration
Maximal number of hyperplanes to add per iteration

{0,…,∞}

200

Dual.HyperplaneCuts.NonfinitePointRetreatFactor
The smallest fraction of the distance to a point where the constraint is finite that the point a hyperplane is generated in is moved, when the constraint is not finite in it

[1e-12,0.5]

0.001

Dual.HyperplaneCuts.ObjectiveRootSearch
When to use the objective root search
0: Always 1: IfConvex 2: Never

{0,…,2}

1

Dual.HyperplaneCuts.UseIntegerCuts
Add integer cuts for infeasible integer-combinations for binary problems

true/false

false

MIP solver

These settings control the general functionality of the MIP solver in the dual strategy. Note that solver-specific settings for Cplex, Gurobi and Cbc are available under the “Subsolver” category.

Name and description

Valid values

Default value

Dual.MIP.CutOff.InitialValue
Initial cutoff value to use

[-∞,∞]

1.7976931348623157e+308

Dual.MIP.CutOff.Tolerance
An extra tolerance for the objective cutoff value (to prevent infeasible subproblems)

[-∞,∞]

1e-05

Dual.MIP.CutOff.UseInitialValue
Use the initial cutoff value

true/false

false

Dual.MIP.InfeasibilityRepair.CutResetLimit
Max number of times the cuts of nonconvex constraints are removed without primal objective value improvement when the infeasibility repair loops

{0,…,∞}

3

Dual.MIP.InfeasibilityRepair.IntegerCuts
Allow feasibility repair of integer cuts

true/false

false

Dual.MIP.InfeasibilityRepair.IterationLimit
Max number of infeasible problems repaired without primal objective value improvement

{0,…,∞}

100

Dual.MIP.InfeasibilityRepair.RelaxCutsViolatedByPrimal
Relax the cuts of nonconvex constraints that cut off a known primal solution

true/false

true

Dual.MIP.InfeasibilityRepair.TimeLimit
Time limit when reparing infeasible problem

[0,∞]

10

Dual.MIP.InfeasibilityRepair.Use
Enable the infeasibility repair strategy for nonconvex problems

true/false

true

Dual.MIP.NodeLimit
Node limit to use for MIP solver in single-tree strategy

[0,∞]

1.7976931348623157e+308

Dual.MIP.NumberOfThreads
Number of threads to use in MIP solver: 0: Automatic

{0,…,999}

0

Dual.MIP.OptimalityTolerance
The reduced-cost tolerance for optimality in the MIP solver

[1e-09,0.01]

1e-06

Dual.MIP.RandomSeed
Random seed for the pseudorandom choices in the MIP solver: 0: The default of the solver used

{0,…,∞}

0

Dual.MIP.SolutionLimit.ForceOptimal.Iteration
Iterations without dual bound updates for forcing optimal MIP solution

{0,…,∞}

10000

Dual.MIP.SolutionLimit.ForceOptimal.Time
Time (s) without dual bound updates for forcing optimal MIP solution

[0,∞]

1000

Dual.MIP.SolutionLimit.IncreaseIterations
Max number of iterations between MIP solution limit increases

{0,…,∞}

50

Dual.MIP.SolutionLimit.Initial
Initial MIP solution limit

{1,…,∞}

1

Dual.MIP.SolutionLimit.UpdateTolerance
The constraint tolerance for when to update MIP solution limit

[0,∞]

0.001

Dual.MIP.SolutionPool.Capacity
The maximum number of solutions in the solution pool

{0,…,∞}

100

Dual.MIP.Solver
Which MIP solver to use
0: Cplex 1: Gurobi 2: Cbc 3: Highs

{0,…,3}

3

Dual.MIP.UpdateObjectiveBounds
Update nonlinear objective variable bounds to primal/dual bounds

true/false

false

Dual reduction cut

These settings control the added dual reduction cuts from the primal solution that will try to force a better primal solution. This functionality is only used if SHOT cannot deduce that the problem is convex .

Name and description

Valid values

Default value

Dual.ReductionCut.MaxIterations
Max number of primal cut reduction without primal improvement

{0,…,∞}

20

Dual.ReductionCut.ReductionFactor
The factor used to reduce the cutoff value

[0,1]

0.001

Dual.ReductionCut.Strategy
The reduction cut strategy to use
0: Fraction 1: GoldenRatio

{0,1}

0

Dual.ReductionCut.Use
Enable the dual reduction cut strategy for nonconvex problems

true/false

true

Relaxation strategies

These settings contorl various aspects regarding integer-relaxation of the dual problem.

Name and description

Valid values

Default value

Dual.Relaxation.Frequency
The frequency to solve an LP problem: 0: Disable

{0,…,∞}

0

Dual.Relaxation.IterationLimit
The max number of relaxed LP problems to solve initially

{0,…,∞}

200

Dual.Relaxation.MaxLazyConstraints
Max number of lazy constraints to add in relaxed solutions in single-tree strategy

{0,…,∞}

0

Dual.Relaxation.TerminationTolerance
Stop solving relaxed problems when the maximum constraint deviation is at most this value

[-∞,∞]

0.5

Dual.Relaxation.TimeLimit
Time limit (s) when solving LP problems initially

[0,∞]

30

Dual.Relaxation.Use
Initially solve continuous dual relaxations

true/false

true

Optimization model

These settings control various aspects of SHOT’s representation for and handling of the provided optimization model.

Bound tightening

SHOT performs bound tightening to strengthen the internal representation of the problem. These settings control how and when bound tightening is performed.

Name and description

Valid values

Default value

Model.BoundTightening.FeasibilityBased.MaxIterations
Maximal number of bound tightening iterations

{0,…,∞}

5

Model.BoundTightening.FeasibilityBased.TimeLimit
Time limit for bound tightening

[0,∞]

2

Model.BoundTightening.FeasibilityBased.Use
Peform feasibility-based bound tightening

true/false

true

Model.BoundTightening.FeasibilityBased.UseNonlinear
Peform feasibility-based bound tightening on nonlinear expressions

true/false

true

Model.BoundTightening.InitialPOA.ConstraintTolerance
Constraint termination tolerance

[-∞,∞]

0.1

Model.BoundTightening.InitialPOA.CutStrategy
Dual cut strategy
0: ESH 1: ECP

{0,1}

1

Model.BoundTightening.InitialPOA.DirectionalSolves
Maximum number of additional solves minimizing or maximizing a variable in a convex constraint without cuts

{0,…,∞}

10

Model.BoundTightening.InitialPOA.IterationLimit
Iteration limit for POA

{0,…,∞}

50

Model.BoundTightening.InitialPOA.ObjectiveConstraintTolerance
Objective constraint termination tolerance

[-∞,∞]

0.001

Model.BoundTightening.InitialPOA.ObjectiveGapAbsolute
Absolute objective gap termination level

[-∞,∞]

0.1

Model.BoundTightening.InitialPOA.ObjectiveGapRelative
Relative objective gap termination level

[-∞,∞]

0.1

Model.BoundTightening.InitialPOA.StagnationConstraintTolerance
Tolerance factor for when no progress is made

[-∞,∞]

0.01

Model.BoundTightening.InitialPOA.StagnationIterationLimit
Limit for iterations without significant progress

{0,…,∞}

5

Model.BoundTightening.InitialPOA.TimeLimit
Time limit for all the problems solved for the initial POA

[-∞,∞]

5

Model.BoundTightening.InitialPOA.Use
Create an initial polyhedral outer approximation

true/false

false

Convexity

These settings control the convexity detection functionality

Name and description

Valid values

Default value

Model.Convexity.AssumeConvex
Assume that the problem is convex

true/false

false

Model.Convexity.Quadratics.EigenValueTolerance
Convexity tolerance for the eigenvalues of the Hessian matrix for quadratic terms

[0,∞]

1e-05

Automatic reformulations

These settings control the automatic reformulations performed in SHOT.

Name and description

Valid values

Default value

Model.Reformulation.AbsoluteValue.MaximumBigM
The largest big-M used to bound an absolute value from above with a binary variable; above it, the absolute value is only bounded from below

[0,∞]

100000000

Model.Reformulation.Bilinear.AddConvexEnvelope
Add convex envelopes (subject to original bounds) to bilinear terms

true/false

false

Model.Reformulation.Bilinear.IntegerFormulation
Reformulate integer bilinear terms
0: No 1: No if nonconvex quadratic terms allowed by MIP solver 2: Yes

{0,…,2}

1

Model.Reformulation.Bilinear.IntegerFormulation.MaxDomain
Do not reformulate integer variables in bilinear terms which can assume more than this number of discrete values

{2,…,∞}

100

Model.Reformulation.Constraint.PartitionNonlinearTerms
When to partition nonlinear sums in constraints
0: Always 1: If result is convex 2: Never

{0,…,2}

1

Model.Reformulation.Constraint.PartitionQuadraticTerms
When to partition quadratic sums in constraints
0: Always 1: If result is convex 2: Never

{0,…,2}

1

Model.Reformulation.Monomials.Extract
Extract monomial terms from nonlinear expressions

true/false

true

Model.Reformulation.Monomials.Formulation
How to reformulate binary monomials
0: None 1: Simple 2: Costa and Liberti

{0,…,2}

1

Model.Reformulation.ObjectiveFunction.EpigraphStrategy
How to choose between objective-function and epigraph-constraint form for the objective. ‘Unchanged’ performs no epigraph or anti-epigraph reformulation, keeping the objective function exactly as given; ‘Objective function’ always keeps (or folds back to) a direct objective function; ‘Epigraph constraint’ always introduces an epigraph auxiliary-variable constraint for nonlinear or quadratic objectives
0: Unchanged 1: Objective function 2: Epigraph constraint

{0,…,2}

0

Model.Reformulation.ObjectiveFunction.PartitionNonlinearTerms
When to partition nonlinear sums in objective function
0: Always 1: If result is convex 2: Never

{0,…,2}

1

Model.Reformulation.ObjectiveFunction.PartitionQuadraticTerms
When to partition quadratic sums in objective function
0: Always 1: If result is convex 2: Never

{0,…,2}

1

Model.Reformulation.Quadratics.Decomposition.Formulation
Placement of the original term cofficient when decomposing a quadratic term
0: Coefficient is included in reformulation 1: Coefficient remains

{0,1}

0

Model.Reformulation.Quadratics.Decomposition.LDLMaximumFill
Skip the LDL decomposition if L would have more than this times the nonzeros of the quadratic matrix, and over a million (0 = no limit)

[0,∞]

100

Model.Reformulation.Quadratics.Decomposition.Method
Whether to use the eigenvalue decomposition of convex quadratic functions
0: No decomposition 1: Eigenvalue decomposition 2: LDL decomposition

{0,…,2}

2

Model.Reformulation.Quadratics.Decomposition.Tolerance
Terms with corresponding eigenvalues or diagonal elements in D-matrix smaller than this value will be ignored

[0,∞]

1e-07

Model.Reformulation.Quadratics.ExtractStrategy
How to extract quadratic terms from nonlinear expressions
0: Do not extract 1: Extract to same objective or constraint 2: Extract to quadratic equality constraint if nonconvex 3: Extract to quadratic equality constraint even if convex

{0,…,3}

1

Model.Reformulation.Quadratics.Strategy
How to treat quadratic functions
0: All nonlinear 1: Use quadratic objective 2: Use convex quadratic objective and constraints 3: Use nonconvex quadratic objective and constraints

{0,…,3}

2

Model.Reformulation.Signomials.Extract
Extract signomial terms from nonlinear expressions

true/false

true

Variables

These settings control the maximum variable bounds allowed in SHOT. Projection will be performed onto these intervals. Note that the MIP solvers may have stricter requirements, in which case those may be used.

Name and description

Valid values

Default value

Model.Variables.Continuous.MaximumUpperBound
Maximum upper bound for continuous variables

[-∞,∞]

1e+50

Model.Variables.Continuous.MinimumLowerBound
Minimum lower bound for continuous variables

[-∞,∞]

-1e+50

Model.Variables.Integer.MaximumUpperBound
Maximum upper bound for integer variables

[-∞,∞]

2000000000

Model.Variables.Integer.MinimumLowerBound
Minimum lower bound for integer variables

[-∞,∞]

-2000000000

Model.Variables.NonlinearObjectiveVariable.Bound
Max absolute bound for the auxiliary nonlinear objective variable

[-∞,∞]

1000000000000

Solver output

These settings control how much and what output is shown to the user from the solver.

Name and description

Valid values

Default value

Output.OutputDirectory
Where to save the output files
0: Problem directory 1: Program directory

{0,1}

1

Output.SaveNumberOfSolutions
Save max this number of primal solutions to OSrL or GDX file

{0,…,∞}

1

Output.Console.DualSolver.Show
Show output from dual solver on console

true/false

false

Output.Console.Iteration.Detail
When should the fixed strategy be used
0: Full 1: On objective gap update 2: On objective gap update and all primal NLP calls

{0,…,2}

1

Output.Console.LogLevel
Log level for console output
0: Trace 1: Debug 2: Info 3: Warning 4: Error 5: Critical 6: Off

{0,…,6}

2

Output.Console.PrimalSolver.Show
Show output from primal solver on console

true/false

false

Output.Debug.Enable
Use debug functionality

true/false

false

Output.Debug.Path
The folder where to save the debug information

string

Output.File.LogLevel
Log level for file output
0: Trace 1: Debug 2: Info 3: Warning 4: Error 5: Critical 6: Off

{0,…,6}

2

Output.GAMS.AlternateSolutionsFile
Name of GAMS GDX file to write alternative solutions to

string

Primal heuristics

These settings control the primal heuristics used in SHOT.

Fixed-integer (NLP) strategy

The main primal strategy in SHOT is to solve integer-fixed NLP problems. These settings control, e.g., how often NLP problems are solved.

Name and description

Valid values

Default value

Primal.FixedInteger.CallStrategy
When should the fixed strategy be used
0: Use each iteration 1: Based on iteration or time 2: Based on iteration or time, and for all feasible MIP solutions

{0,…,2}

2

Primal.FixedInteger.CreateInfeasibilityCut
Create a cut from an infeasible solution point

true/false

false

Primal.FixedInteger.DualPointGap.Relative
If the objective gap between the MIP point and dual solution is less than this the fixed strategy is activated

[0,∞]

0.001

Primal.FixedInteger.Enumeration.MaxCombinations
Max number of combinations of the discrete variables for the exhaustive search to be performed

{1,…,∞}

50

Primal.FixedInteger.Enumeration.TimeLimit
Time limit (s) for all NLP problems in the exhaustive search

[0,∞]

20

Primal.FixedInteger.Enumeration.UseAsFallback
Solve NLP problems for all combinations of the discrete variables if the objective gap could not be closed

true/false

true

Primal.FixedInteger.Enumeration.UseInitially
Solve NLP problems for all combinations of the discrete variables before the dual strategy

true/false

false

Primal.FixedInteger.Frequency.Dynamic
Dynamically update the call frequency based on success

true/false

true

Primal.FixedInteger.Frequency.Iteration
Max number of iterations between calls

{0,…,∞}

10

Primal.FixedInteger.Frequency.Time
Max duration (s) between calls

[0,∞]

5

Primal.FixedInteger.IterationLimit
Max number of iterations per call

{0,…,∞}

10000000

Primal.FixedInteger.OnlyUniqueIntegerCombinations
Whether to resolve with the same integer combination, e.g. for nonconvex problems with different continuous variable starting points

true/false

true

Primal.FixedInteger.Solver
NLP solver to use
0: Ipopt 1: GAMS 2: SHOT 3: Uno

{0,…,3}

0

Primal.FixedInteger.Source
Source of fixed MIP solution point
0: All 1: First 2: All feasible 3: First and all feasible 4: With smallest constraint deviation

{0,…,4}

3

Primal.FixedInteger.SourceProblem
Which problem formulation to use for NLP problem
0: Original problem 1: Reformulated problem 2: Both

{0,…,2}

1

Primal.FixedInteger.TimeLimit
Time limit (s) per NLP problem

[0,∞]

10

Primal.FixedInteger.Use
Use the fixed integer primal strategy

true/false

true

Primal.FixedInteger.UseOnContinuousProblems
Also solve the NLP problem from the dual solutions of a nonconvex problem without discrete variables

true/false

true

Primal.FixedInteger.UseStartingPoint
Solve an NLP problem from a given starting point, e.g. the levels of the variables in GAMS or the initial values in AMPL, before the first dual problem. Off by default until benchmarked on all of MINLPLib

true/false

false

Primal.FixedInteger.Warmstart
Warm start the NLP solver

true/false

true

Primal.PolishSolution.NumberOfPoints
The number of solutions of the dual problem, from the last iterations, that a final NLP problem is solved from to try to improve the solution. More than one can find a better local solution of a nonconvex problem, and zero disables it

{0,…,∞}

1

Primal solution tolerances

These settings sets various tolerances for accepting primal solutions.

Name and description

Valid values

Default value

Primal.Tolerance.Integer
Integer tolerance for accepting primal solutions

[-∞,∞]

1e-05

Primal.Tolerance.LinearConstraint
Linear constraint tolerance for accepting primal solutions

[-∞,∞]

1e-06

Primal.Tolerance.NonlinearConstraint
Nonlinear constraint tolerance for accepting primal solutions

[-∞,∞]

1e-05

Primal.Tolerance.TrustLinearConstraintValues
Trust that subsolvers (NLP, MIP) give primal solutions that respect linear constraints

true/false

true

Strategy

Overall strategy parameters used in SHOT.

Name and description

Valid values

Default value

Strategy.UseRecommendedSettings
Modifies some settings to their recommended values based on the strategy

true/false

true

Subsolver functionality

These settings allow for more direct control of the different subsolvers utilized in SHOT.

Highs

Name and description

Valid values

Default value

Subsolver.Highs.DebugLevel
Debug level for HiGHS internal assertions
0: off 1: low 2: medium 3: high

{0,…,3}

0

Subsolver.Highs.MIPAllowRestart
Whether MIP restart is permitted

true/false

true

Subsolver.Highs.MIPDetectSymmetry
Whether MIP symmetry should be detected

true/false

true

Subsolver.Highs.MIPHeuristicEffort
Effort spent for MIP heuristics

[0,1]

0.05

Subsolver.Highs.MIPHeuristicRunShifting
Run Shifting heuristic

true/false

false

Subsolver.Highs.MIPHeuristicRunZiRound
Run Zi Round heuristic

true/false

false

Subsolver.Highs.Parallel
Use parallelization
0: off 1: choose 2: on

{0,…,2}

1

Subsolver.Highs.Presolve
Use presolve
0: off 1: choose 2: on

{0,…,2}

1

Subsolver.Highs.RunCrossover
Run crossover
0: off 1: choose 2: on

{0,…,2}

0

Ipopt

Name and description

Valid values

Default value

Subsolver.Ipopt.ConstraintViolationTolerance
Constraint violation tolerance in Ipopt

[-∞,∞]

1e-08

Subsolver.Ipopt.HessianApproximation
The Hessian of the Lagrangian used by Ipopt. Automatic uses a limited-memory approximation if the exact Hessian of a nonlinear expression with at least 64 variables is nearly dense, since it is then expensive
0: Exact 1: Limited memory 2: Automatic

{0,…,2}

2

Subsolver.Ipopt.LinearSolver
Ipopt linear subsolver
0: Default 1: MA27 2: MA57 3: MA86 4: MA97 5: MUMPS

{0,…,5}

0

Subsolver.Ipopt.MaxIterations
Maximum number of iterations

{0,…,∞}

1000

Subsolver.Ipopt.OptionsFile
An Ipopt options file with any Ipopt options, read instead of ipopt.opt in the working directory. Options set by SHOT, e.g. the linear solver, are not changed by it

string

Subsolver.Ipopt.RelativeConvergenceTolerance
Relative convergence tolerance

[-∞,∞]

1e-08

Root search solver

Settings for the Boost rootsearch functionality.

Name and description

Valid values

Default value

Subsolver.Rootsearch.ActiveConstraintTolerance
Epsilon constraint tolerance for root search

[0,∞]

0

Subsolver.Rootsearch.MaxIterations
Maximal root search iterations

{0,…,∞}

100

Subsolver.Rootsearch.Method
Root search method to use
0: TOMS748 1: Bisection

{0,1}

0

Subsolver.Rootsearch.TerminationTolerance
Epsilon lambda tolerance for root search

[0,∞]

1e-16

SHOT primal NLP solver

Name and description

Valid values

Default value

Subsolver.SHOT.ReuseHyperplanes.Fraction
The fraction of generated hyperplanes to reuse.

[0,1]

0.1

Subsolver.SHOT.ReuseHyperplanes.Use
Reuse valid generated hyperplanes in main dual model.

true/false

true

Subsolver.SHOT.UseFBBT
Do FBBT on NLP problem.

true/false

true

Termination

These settings control when SHOT will terminate the solution process.

Name and description

Valid values

Default value

Termination.ConstraintTolerance
Termination tolerance for nonlinear constraints

[0,∞]

1e-08

Termination.IterationLimit
Iteration limit for main strategy

{1,…,∞}

200000

Termination.ObjectiveConstraintTolerance
Termination tolerance for the nonlinear objective constraint

[0,∞]

1e-08

Termination.TimeLimit
Time limit (s) for solver

[0,∞]

1.7976931348623157e+308

Termination.DualStagnation.ConstraintTolerance
Min absolute difference between max nonlinear constraint errors in subsequent iterations for termination

[0,∞]

1e-06

Termination.DualStagnation.IterationLimit
Max number of iterations without significant dual objective value improvement

{0,…,∞}

1000

Termination.ObjectiveGap.Absolute
Absolute gap termination tolerance for objective function

[0,∞]

0.001

Termination.ObjectiveGap.Relative
Relative gap termination tolerance for objective function

[0,∞]

0.001

Termination.PrimalStagnation.IterationLimit
Max number of iterations without significant primal objective value improvement

{0,…,∞}

50