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introduce bounded globally mc for MDPs

tempestpy_adaptions
Stefan Pranger 2 weeks ago
parent
0d60b468e1
commit
6a79986980
2 changed files with 47 additions and 18 deletions
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  1. 30
      src/storm/modelchecker/prctl/SparseMdpPrctlModelChecker.cpp
  2. 1
      src/storm/modelchecker/prctl/SparseMdpPrctlModelChecker.h

30
src/storm/modelchecker/prctl/SparseMdpPrctlModelChecker.cpp
View File

@ -45,7 +45,7 @@ namespace storm {
template<typename SparseMdpModelType>
bool SparseMdpPrctlModelChecker<SparseMdpModelType>::canHandleStatic(CheckTask<storm::logic::Formula, ValueType> const& checkTask, bool* requiresSingleInitialState) {
storm::logic::Formula const& formula = checkTask.getFormula();
if (formula.isInFragment(storm::logic::prctlstar().setLongRunAverageRewardFormulasAllowed(true).setLongRunAverageProbabilitiesAllowed(true).setConditionalProbabilityFormulasAllowed(true).setOnlyEventuallyFormuluasInConditionalFormulasAllowed(true).setTotalRewardFormulasAllowed(true).setRewardBoundedUntilFormulasAllowed(true).setRewardBoundedCumulativeRewardFormulasAllowed(true).setMultiDimensionalBoundedUntilFormulasAllowed(true).setMultiDimensionalCumulativeRewardFormulasAllowed(true).setTimeOperatorsAllowed(true).setReachbilityTimeFormulasAllowed(true).setRewardAccumulationAllowed(true))) {
if (formula.isInFragment(storm::logic::prctlstar().setLongRunAverageRewardFormulasAllowed(true).setLongRunAverageProbabilitiesAllowed(true).setConditionalProbabilityFormulasAllowed(true).setOnlyEventuallyFormuluasInConditionalFormulasAllowed(true).setTotalRewardFormulasAllowed(true).setRewardBoundedUntilFormulasAllowed(true).setRewardBoundedCumulativeRewardFormulasAllowed(true).setMultiDimensionalBoundedUntilFormulasAllowed(true).setBoundedGloballyFormulasAllowed(true).setMultiDimensionalCumulativeRewardFormulasAllowed(true).setTimeOperatorsAllowed(true).setReachbilityTimeFormulasAllowed(true).setRewardAccumulationAllowed(true))) {
return true;
} else if (checkTask.isOnlyInitialStatesRelevantSet()) {
auto multiObjectiveFragment = storm::logic::multiObjective().setCumulativeRewardFormulasAllowed(true).setTimeBoundedCumulativeRewardFormulasAllowed(true).setStepBoundedCumulativeRewardFormulasAllowed(true).setRewardBoundedCumulativeRewardFormulasAllowed(true).setTimeBoundedUntilFormulasAllowed(true).setStepBoundedUntilFormulasAllowed(true).setRewardBoundedUntilFormulasAllowed(true).setMultiDimensionalBoundedUntilFormulasAllowed(true).setMultiDimensionalCumulativeRewardFormulasAllowed(true).setRewardAccumulationAllowed(true);
@ -69,6 +69,34 @@ namespace storm {
}
}
template<typename SparseMdpModelType>
std::unique_ptr<CheckResult> SparseMdpPrctlModelChecker<SparseMdpModelType>::computeBoundedGloballyProbabilities(Environment const& env, CheckTask<storm::logic::BoundedGloballyFormula, ValueType> const& checkTask) {
storm::logic::BoundedGloballyFormula const& pathFormula = checkTask.getFormula();
STORM_LOG_THROW(checkTask.isOptimizationDirectionSet(), storm::exceptions::InvalidPropertyException, "Formula needs to specify whether minimal or maximal values are to be computed on nondeterministic model.");
STORM_LOG_THROW(pathFormula.hasUpperBound(), storm::exceptions::InvalidPropertyException, "Formula needs to have (a single) upper step bound.");
STORM_LOG_THROW(pathFormula.hasIntegerLowerBound(), storm::exceptions::InvalidPropertyException, "Formula lower step bound must be discrete/integral.");
STORM_LOG_THROW(pathFormula.hasIntegerUpperBound(), storm::exceptions::InvalidPropertyException, "Formula needs to have discrete upper time bound.");
std::unique_ptr<CheckResult> subResultPointer = this->check(env, pathFormula.getSubformula());
ExplicitQualitativeCheckResult const& subResult = subResultPointer->asExplicitQualitativeCheckResult();
storm::modelchecker::helper::SparseNondeterministicStepBoundedHorizonHelper<ValueType> helper;
std::vector<ValueType> numericResult;
//This works only with empty vectors, no nullptr
storm::storage::BitVector resultMaybeStates;
std::vector<ValueType> choiceValues;
storm::storage::BitVector allStatesBv = storm::storage::BitVector(this->getModel().getTransitionMatrix().getRowGroupCount(), true);
numericResult = helper.compute(env, storm::solver::SolveGoal<ValueType>(this->getModel(), checkTask), this->getModel().getTransitionMatrix(), this->getModel().getBackwardTransitions(), allStatesBv, ~subResult.getTruthValuesVector(), pathFormula.getNonStrictLowerBound<uint64_t>(), pathFormula.getNonStrictUpperBound<uint64_t>(), resultMaybeStates, choiceValues, checkTask.getHint());
// flip directions TODO
std::unique_ptr<CheckResult> result(new ExplicitQuantitativeCheckResult<ValueType>(std::move(numericResult)));
if(checkTask.isShieldingTask()) {
auto shield = tempest::shields::createShield<ValueType>(std::make_shared<storm::models::sparse::Mdp<ValueType>>(this->getModel()), std::move(choiceValues), checkTask.getShieldingExpression(), checkTask.getOptimizationDirection(), std::move(resultMaybeStates), storm::storage::BitVector(resultMaybeStates.size(), true));
result->asExplicitQuantitativeCheckResult<ValueType>().setShield(std::move(shield));
}
return result;
}
template<typename SparseMdpModelType>
std::unique_ptr<CheckResult> SparseMdpPrctlModelChecker<SparseMdpModelType>::computeBoundedUntilProbabilities(Environment const& env, CheckTask<storm::logic::BoundedUntilFormula, ValueType> const& checkTask) {
storm::logic::BoundedUntilFormula const& pathFormula = checkTask.getFormula();

1
src/storm/modelchecker/prctl/SparseMdpPrctlModelChecker.h
View File

@ -27,6 +27,7 @@ namespace storm {
// The implemented methods of the AbstractModelChecker interface.
virtual bool canHandle(CheckTask<storm::logic::Formula, ValueType> const& checkTask) const override;
std::unique_ptr<CheckResult> computeBoundedGloballyProbabilities(Environment const& env, CheckTask<storm::logic::BoundedGloballyFormula, ValueType> const& checkTask);
virtual std::unique_ptr<CheckResult> computeBoundedUntilProbabilities(Environment const& env, CheckTask<storm::logic::BoundedUntilFormula, ValueType> const& checkTask) override;
virtual std::unique_ptr<CheckResult> computeNextProbabilities(Environment const& env, CheckTask<storm::logic::NextFormula, ValueType> const& checkTask) override;
virtual std::unique_ptr<CheckResult> computeUntilProbabilities(Environment const& env, CheckTask<storm::logic::UntilFormula, ValueType> const& checkTask) override;

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