SparseMdpParameterLiftingModelChecker.h

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#pragma once
 
#include <memory>
#include <optional>
#include <vector>
 
#include "storm-pars/modelchecker/instantiation/SparseMdpInstantiationModelChecker.h"
#include "storm-pars/modelchecker/region/SparseParameterLiftingModelChecker.h"
#include "storm-pars/transformer/ParameterLifter.h"
 
#include "storm/solver/GameSolver.h"
#include "storm/storage/BitVector.h"
#include "storm/storage/Scheduler.h"
#include "storm/storage/SparseMatrix.h"
#include "storm/storage/sparse/StateType.h"
 
namespace storm::modelchecker {
 
template<typename SparseModelType, typename ConstantType>
class SparseMdpParameterLiftingModelChecker : public SparseParameterLiftingModelChecker<SparseModelType, ConstantType> {
   public:
    using ParametricType = typename SparseModelType::ValueType;
    using CoefficientType = typename RegionModelChecker<ParametricType>::CoefficientType;
    using VariableType = typename RegionModelChecker<ParametricType>::VariableType;
    using Valuation = typename RegionModelChecker<ParametricType>::Valuation;
    using ExtendedConstantType = typename SparseParameterLiftingModelChecker<SparseModelType, ConstantType>::ExtendedConstantType;
 
    SparseMdpParameterLiftingModelChecker();
    SparseMdpParameterLiftingModelChecker(std::unique_ptr<storm::solver::GameSolverFactory<ConstantType>>&& solverFactory);
    virtual ~SparseMdpParameterLiftingModelChecker() = default;
 
    virtual bool canHandle(std::shared_ptr<storm::models::ModelBase> parametricModel,
                           CheckTask<storm::logic::Formula, ParametricType> const& checkTask) const override;
    virtual void specify(
        Environment const& env, std::shared_ptr<storm::models::ModelBase> parametricModel, CheckTask<storm::logic::Formula, ParametricType> const& checkTask,
        std::optional<RegionSplitEstimateKind> generateRegionSplitEstimates = std::nullopt,
        std::shared_ptr<MonotonicityBackend<ParametricType>> monotonicityBackend = {}, bool allowModelSimplifications = true,
        storm::pars::analysis::GraphPreservationStatus graphPreservationStatus = storm::pars::analysis::GraphPreservationStatus::GraphPreserving) override;
 
    std::optional<storm::storage::Scheduler<ConstantType>> getCurrentMinScheduler();
    std::optional<storm::storage::Scheduler<ConstantType>> getCurrentMaxScheduler();
    std::optional<storm::storage::Scheduler<ConstantType>> getCurrentPlayer1Scheduler();

    virtual bool isMonotonicitySupported(MonotonicityBackend<ParametricType> const& backend,
                                         CheckTask<storm::logic::Formula, ParametricType> const& checkTask) const override;
 
   protected:
    virtual void specifyBoundedUntilFormula(const CheckTask<storm::logic::BoundedUntilFormula, ConstantType>& checkTask) override;
    virtual void specifyUntilFormula(Environment const& env, CheckTask<storm::logic::UntilFormula, ConstantType> const& checkTask) override;
    virtual void specifyReachabilityRewardFormula(Environment const& env, CheckTask<storm::logic::EventuallyFormula, ConstantType> const& checkTask) override;
    virtual void specifyCumulativeRewardFormula(const CheckTask<storm::logic::CumulativeRewardFormula, ConstantType>& checkTask) override;
 
    virtual storm::modelchecker::SparseInstantiationModelChecker<SparseModelType, ConstantType>& getInstantiationChecker(Environment const& env,
                                                                                                                         bool quantitative) override;
 
    virtual std::vector<ExtendedConstantType> computeQuantitativeValues(Environment const& env, AnnotatedRegion<ParametricType>& region,
                                                                        storm::solver::OptimizationDirection const& dirForParameters) override;
 
    virtual void reset() override;
 
   private:
    void computePlayer1Matrix(std::optional<storm::storage::BitVector> const& selectedRows = std::nullopt);
 
    storm::storage::BitVector maybeStates;
    std::vector<ExtendedConstantType> resultsForNonMaybeStates;
    std::optional<uint64_t> stepBound;
 
    std::unique_ptr<storm::modelchecker::SparseMdpInstantiationModelChecker<SparseModelType, ConstantType>> instantiationChecker;
 
    std::unique_ptr<CheckTask<storm::logic::Formula, ParametricType>> currentCheckTaskNoBound;
    std::shared_ptr<storm::logic::Formula const> currentFormulaNoBound;
 
    storm::storage::SparseMatrix<storm::storage::sparse::state_type> player1Matrix;
    std::unique_ptr<storm::transformer::ParameterLifter<ParametricType, ConstantType>> parameterLifter;
    std::unique_ptr<storm::solver::GameSolverFactory<ConstantType>> solverFactory;
 
    // Results from the most recent solver call.
    std::optional<std::vector<uint64_t>> minSchedChoices, maxSchedChoices;
    std::optional<std::vector<uint64_t>> player1SchedChoices;
    std::vector<ConstantType> x;
    std::optional<ConstantType> lowerResultBound, upperResultBound;
    bool applyPreviousResultAsHint;
};
}  // namespace storm::modelchecker