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77 lines
3.6 KiB
77 lines
3.6 KiB
#pragma once
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#include <vector>
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#include <cstdint>
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namespace storm {
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namespace storage {
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class BitVector;
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template <typename ValueType>
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class SparseMatrix;
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template <typename ValueType>
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class MaximalEndComponentDecomposition;
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}
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namespace modelchecker {
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namespace helper {
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template<typename ValueType>
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class SparseMdpEndComponentInformation {
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public:
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SparseMdpEndComponentInformation(storm::storage::MaximalEndComponentDecomposition<ValueType> const& endComponentDecomposition, storm::storage::BitVector const& maybeStates);
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bool isMaybeStateInEc(uint64_t maybeState) const;
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bool isStateInEc(uint64_t state) const;
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/*!
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* Retrieves for each maybe state the number of maybe states not contained in ECs with an index smaller
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* than the requested one.
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*/
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std::vector<uint64_t> const& getNumberOfMaybeStatesNotInEcBeforeIndices() const;
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/*!
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* Retrieves the total number of maybe states on in ECs.
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*/
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uint64_t getNumberOfMaybeStatesNotInEc() const;
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/*!
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* Retrieves the EC of the state (result may be NOT_IN_EC).
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*/
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uint64_t getEc(uint64_t state) const;
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/*!
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* Retrieves the row group of the state after end component elimination.
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*/
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uint64_t getRowGroupAfterElimination(uint64_t state) const;
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bool getEliminatedEndComponents() const;
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uint64_t getNotInEcMarker() const;
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static SparseMdpEndComponentInformation<ValueType> eliminateEndComponents(storm::storage::MaximalEndComponentDecomposition<ValueType> const& endComponentDecomposition, storm::storage::SparseMatrix<ValueType> const& transitionMatrix, storm::storage::BitVector const& maybeStates, storm::storage::BitVector const* sumColumns, storm::storage::BitVector const* selectedChoices, std::vector<ValueType> const* summand, storm::storage::SparseMatrix<ValueType>& submatrix, std::vector<ValueType>* columnSumVector, std::vector<ValueType>* summandResultVector);
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static SparseMdpEndComponentInformation<ValueType> eliminateEndComponents(storm::storage::MaximalEndComponentDecomposition<ValueType> const& endComponentDecomposition, storm::storage::SparseMatrix<ValueType> const& transitionMatrix, std::vector<ValueType>& rhsVector, storm::storage::BitVector const& maybeStates, storm::storage::SparseMatrix<ValueType>& submatrix, std::vector<ValueType>& subvector);
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void setValues(std::vector<ValueType>& result, storm::storage::BitVector const& maybeStates, std::vector<ValueType> const& fromResult);
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private:
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// A constant that marks that a state is not contained in any EC.
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uint64_t NOT_IN_EC;
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// A flag storing whether end components have been eliminated.
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bool eliminatedEndComponents;
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// Data about end components.
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std::vector<uint64_t> maybeStatesBefore;
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std::vector<uint64_t> maybeStatesNotInEcBefore;
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uint64_t numberOfMaybeStatesInEc;
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uint64_t numberOfMaybeStatesNotInEc;
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uint64_t numberOfEc;
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std::vector<uint64_t> maybeStateToEc;
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};
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}
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}
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}
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