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added option of splitting to predicate synthesis, added equivalence checker, fixed bug that caused some commands not to be abstracted
main
added option of splitting to predicate synthesis, added equivalence checker, fixed bug that caused some commands not to be abstracted
main
dehnert
9 years ago
15 changed files with 308 additions and 118 deletions
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17src/storm/abstraction/prism/AbstractCommand.cpp
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3src/storm/abstraction/prism/AbstractCommand.h
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79src/storm/abstraction/prism/AbstractProgram.cpp
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16src/storm/abstraction/prism/AbstractProgram.h
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8src/storm/abstraction/prism/PrismMenuGameAbstractor.cpp
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95src/storm/modelchecker/abstraction/GameBasedMdpModelChecker.cpp
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6src/storm/settings/modules/AbstractionSettings.cpp
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8src/storm/settings/modules/AbstractionSettings.h
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23src/storm/storage/expressions/EquivalenceChecker.cpp
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28src/storm/storage/expressions/EquivalenceChecker.h
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14src/storm/storage/expressions/Expression.h
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80src/storm/storage/expressions/PredicateSplitter.cpp
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31src/storm/storage/expressions/PredicateSplitter.h
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6src/storm/utility/graph.cpp
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12src/test/abstraction/PrismMenuGameTest.cpp
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#include "storm/storage/expressions/EquivalenceChecker.h"
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#include "storm/solver/SmtSolver.h"
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#include "storm/storage/expressions/Expression.h"
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namespace storm { |
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namespace expressions { |
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EquivalenceChecker::EquivalenceChecker(std::unique_ptr<storm::solver::SmtSolver>&& smtSolver, storm::expressions::Expression const& constraint) : smtSolver(std::move(smtSolver)) { |
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this->smtSolver->add(constraint); |
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} |
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bool EquivalenceChecker::areEquivalent(storm::expressions::Expression const& first, storm::expressions::Expression const& second) { |
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this->smtSolver->push(); |
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this->smtSolver->add((first && !second) || (!first && second)); |
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bool equivalent = smtSolver->check() == storm::solver::SmtSolver::CheckResult::Unsat; |
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this->smtSolver->pop(); |
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return equivalent; |
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} |
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} |
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} |
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#pragma once |
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#include <memory> |
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#include "storm/solver/SmtSolver.h" |
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namespace storm { |
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namespace expressions { |
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class Expression; |
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class EquivalenceChecker { |
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public: |
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/*! |
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* Creates an equivalence checker with the given solver and constraint. |
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* |
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* @param smtSolver The solver to use. |
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* @param constraint An additional constraint. Must be satisfiable. |
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*/ |
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EquivalenceChecker(std::unique_ptr<storm::solver::SmtSolver>&& smtSolver, storm::expressions::Expression const& constraint); |
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bool areEquivalent(storm::expressions::Expression const& first, storm::expressions::Expression const& second); |
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private: |
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std::unique_ptr<storm::solver::SmtSolver> smtSolver; |
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}; |
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} |
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} |
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#include "storm/storage/expressions/PredicateSplitter.h"
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#include "storm/storage/expressions/Expression.h"
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#include "storm/storage/expressions/Expressions.h"
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#include "storm/utility/macros.h"
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#include "storm/exceptions/InvalidArgumentException.h"
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namespace storm { |
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namespace expressions { |
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std::vector<storm::expressions::Expression> PredicateSplitter::split(storm::expressions::Expression const& expression) { |
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STORM_LOG_THROW(expression.hasBooleanType(), storm::exceptions::InvalidArgumentException, "Expected predicate of boolean type."); |
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// Gather all atoms.
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atomicExpressions.clear(); |
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expression.accept(*this, boost::none); |
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// Remove all boolean literals from the atoms.
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std::vector<storm::expressions::Expression> atomsToKeep; |
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for (auto const& atom : atomicExpressions) { |
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if (!atom.isTrue() && !atom.isFalse()) { |
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atomsToKeep.push_back(atom); |
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} |
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} |
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atomicExpressions = std::move(atomsToKeep); |
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return atomicExpressions; |
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} |
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boost::any PredicateSplitter::visit(IfThenElseExpression const& expression, boost::any const&) { |
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atomicExpressions.push_back(expression.shared_from_this()); |
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return boost::any(); |
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} |
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boost::any PredicateSplitter::visit(BinaryBooleanFunctionExpression const& expression, boost::any const& data) { |
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expression.getFirstOperand()->accept(*this, data); |
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expression.getSecondOperand()->accept(*this, data); |
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return boost::any(); |
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} |
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boost::any PredicateSplitter::visit(BinaryNumericalFunctionExpression const&, boost::any const&) { |
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return boost::any(); |
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} |
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boost::any PredicateSplitter::visit(BinaryRelationExpression const& expression, boost::any const&) { |
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atomicExpressions.push_back(expression.shared_from_this()); |
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return boost::any(); |
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} |
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boost::any PredicateSplitter::visit(VariableExpression const& expression, boost::any const&) { |
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if (expression.hasBooleanType()) { |
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atomicExpressions.push_back(expression.shared_from_this()); |
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} |
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return boost::any(); |
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} |
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boost::any PredicateSplitter::visit(UnaryBooleanFunctionExpression const& expression, boost::any const& data) { |
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expression.getOperand()->accept(*this, data); |
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return boost::any(); |
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} |
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boost::any PredicateSplitter::visit(UnaryNumericalFunctionExpression const&, boost::any const&) { |
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return boost::any(); |
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} |
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boost::any PredicateSplitter::visit(BooleanLiteralExpression const&, boost::any const&) { |
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return boost::any(); |
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} |
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boost::any PredicateSplitter::visit(IntegerLiteralExpression const&, boost::any const&) { |
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return boost::any(); |
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} |
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boost::any PredicateSplitter::visit(RationalLiteralExpression const&, boost::any const&) { |
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return boost::any(); |
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} |
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} |
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} |
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#pragma once |
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#include <vector> |
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#include "storm/storage/expressions/ExpressionVisitor.h" |
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namespace storm { |
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namespace expressions { |
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class Expression; |
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class PredicateSplitter : public ExpressionVisitor { |
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public: |
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std::vector<storm::expressions::Expression> split(storm::expressions::Expression const& expression); |
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virtual boost::any visit(IfThenElseExpression const& expression, boost::any const& data) override; |
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virtual boost::any visit(BinaryBooleanFunctionExpression const& expression, boost::any const& data) override; |
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virtual boost::any visit(BinaryNumericalFunctionExpression const& expression, boost::any const& data) override; |
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virtual boost::any visit(BinaryRelationExpression const& expression, boost::any const& data) override; |
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virtual boost::any visit(VariableExpression const& expression, boost::any const& data) override; |
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virtual boost::any visit(UnaryBooleanFunctionExpression const& expression, boost::any const& data) override; |
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virtual boost::any visit(UnaryNumericalFunctionExpression const& expression, boost::any const& data) override; |
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virtual boost::any visit(BooleanLiteralExpression const& expression, boost::any const& data) override; |
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virtual boost::any visit(IntegerLiteralExpression const& expression, boost::any const& data) override; |
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virtual boost::any visit(RationalLiteralExpression const& expression, boost::any const& data) override; |
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private: |
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std::vector<storm::expressions::Expression> atomicExpressions; |
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}; |
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} |
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} |
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