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79 lines
3.1 KiB
79 lines
3.1 KiB
#ifndef EXPLICITDFTMODELBUILDER_H
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#define EXPLICITDFTMODELBUILDER_H
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#include <src/models/sparse/StateLabeling.h>
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#include <src/models/sparse/StandardRewardModel.h>
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#include <src/models/sparse/Model.h>
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#include <src/storage/SparseMatrix.h>
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#include <src/storage/BitVectorHashMap.h>
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#include <src/storage/dft/DFT.h>
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#include <src/storage/dft/SymmetricUnits.h>
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#include <boost/container/flat_set.hpp>
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#include <boost/optional/optional.hpp>
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#include <stack>
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#include <unordered_set>
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namespace storm {
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namespace builder {
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template<typename ValueType>
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class ExplicitDFTModelBuilder {
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using DFTElementPointer = std::shared_ptr<storm::storage::DFTElement<ValueType>>;
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using DFTElementCPointer = std::shared_ptr<storm::storage::DFTElement<ValueType> const>;
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using DFTGatePointer = std::shared_ptr<storm::storage::DFTGate<ValueType>>;
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using DFTStatePointer = std::shared_ptr<storm::storage::DFTState<ValueType>>;
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using DFTRestrictionPointer = std::shared_ptr<storm::storage::DFTRestriction<ValueType>>;
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// A structure holding the individual components of a model.
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struct ModelComponents {
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ModelComponents();
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// The transition matrix.
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storm::storage::SparseMatrix<ValueType> transitionMatrix;
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// The state labeling.
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storm::models::sparse::StateLabeling stateLabeling;
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// The Markovian states.
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storm::storage::BitVector markovianStates;
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// The exit rates.
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std::vector<ValueType> exitRates;
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// A vector that stores a labeling for each choice.
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boost::optional<std::vector<boost::container::flat_set<uint_fast64_t>>> choiceLabeling;
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};
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const size_t INITIAL_BUCKETSIZE = 20000;
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const uint_fast64_t OFFSET_PSEUDO_STATE = UINT_FAST64_MAX / 2;
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storm::storage::DFT<ValueType> const& mDft;
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std::shared_ptr<storm::storage::DFTStateGenerationInfo> mStateGenerationInfo;
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storm::storage::BitVectorHashMap<uint_fast64_t> mStates;
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std::vector<uint_fast64_t> mPseudoStatesMapping;
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size_t newIndex = 0;
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bool mergeFailedStates = true;
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size_t failedIndex = 0;
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size_t initialStateIndex = 0;
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public:
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struct LabelOptions {
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bool buildFailLabel = true;
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bool buildFailSafeLabel = false;
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std::set<std::string> beLabels = {};
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};
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ExplicitDFTModelBuilder(storm::storage::DFT<ValueType> const& dft, storm::storage::DFTIndependentSymmetries const& symmetries);
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std::shared_ptr<storm::models::sparse::Model<ValueType>> buildModel(LabelOptions const& labelOpts);
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private:
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bool exploreStates(std::queue<DFTStatePointer>& stateQueue, storm::storage::SparseMatrixBuilder<ValueType>& transitionMatrixBuilder, std::vector<uint_fast64_t>& markovianStates, std::vector<ValueType>& exitRates);
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};
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}
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}
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#endif /* EXPLICITDFTMODELBUILDER_H */
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