Lanchid
12 years ago
3 changed files with 4 additions and 362 deletions
-
8CMakeLists.txt
-
284src/adapters/Ltl2dstarFormulaAdapter.h
-
74test/functional/ltl2dstarIntegration/Ltl2dstarFormulaAdapterTest.cpp
@ -1,284 +0,0 @@ |
|||
/* |
|||
* Ltl2dstarFormulaAdapter.h |
|||
* |
|||
* Created on: 29.05.2013 |
|||
* Author: Thomas Heinemann |
|||
*/ |
|||
|
|||
#ifndef STORM_ADAPTER_LTL2DSTARFORMULAADAPTER_H_ |
|||
#define STORM_ADAPTER_LTL2DSTARFORMULAADAPTER_H_ |
|||
|
|||
#include "formula/Ltl.h" |
|||
#include "models/AtomicPropositionsLabeling.h" |
|||
|
|||
#include "LTLFormula.hpp" //LTL2Dstar include file |
|||
|
|||
namespace storm { |
|||
namespace adapters { |
|||
|
|||
/*! |
|||
* @brief |
|||
* Conversion routines for creating an equivalent formula of the LTL2DStar classes out of storm formula classes. |
|||
* |
|||
* @note |
|||
* Storm allows bounded until and eventually operators, which are not available in LTL2Dstar |
|||
* These formulas are unfolded into an equivalent formula using nested next operators. |
|||
* |
|||
* This class uses the visitor pattern for traversing the LTL formula. |
|||
* Due to the limitations of templates in C++ the callback for the visit functions are of type void. As a workaround, |
|||
* intermediate result formulas are stored in the field intermediateResult. |
|||
* |
|||
*/ |
|||
template<class T> |
|||
class Ltl2dstarFormulaAdapter : |
|||
public storm::property::ltl::visitor::AbstractLtlFormulaVisitor<T>, |
|||
public storm::property::ltl::IAndVisitor<T>, |
|||
public storm::property::ltl::IApVisitor<T>, |
|||
public storm::property::ltl::IBoundedEventuallyVisitor<T>, |
|||
public storm::property::ltl::IBoundedUntilVisitor<T>, |
|||
public storm::property::ltl::IEventuallyVisitor<T>, |
|||
public storm::property::ltl::IGloballyVisitor<T>, |
|||
public storm::property::ltl::INextVisitor<T>, |
|||
public storm::property::ltl::INotVisitor<T>, |
|||
public storm::property::ltl::IOrVisitor<T>, |
|||
public storm::property::ltl::IUntilVisitor<T> { |
|||
public: |
|||
virtual ~Ltl2dstarFormulaAdapter() { |
|||
// TODO Auto-generated destructor stub |
|||
} |
|||
|
|||
/*! |
|||
* Visit method for an ltl And formula. |
|||
* Stores the converted formula (in LTL2Dstar classes) in the field intermediateResult |
|||
* |
|||
* @param formula Reference to the And formula that is to be visited. |
|||
*/ |
|||
virtual void visitAnd(const storm::property::ltl::And<T>& formula) { |
|||
this->visit(formula.getLeft()); |
|||
LTLNode_p left = intermediateResult; |
|||
this->visit(formula.getRight()); |
|||
LTLNode_p right = intermediateResult; |
|||
intermediateResult.reset(new LTLNode(LTLNode::T_AND, left, right)); |
|||
} |
|||
|
|||
/*! |
|||
* Visit method for an ltl Ap formula. |
|||
* Stores the converted formula (in LTL2Dstar classes) in the field intermediateResult |
|||
* |
|||
* @param formula Reference to the Ap formula that is to be visited. |
|||
*/ |
|||
virtual void visitAp(const storm::property::ltl::Ap<T>& formula) { |
|||
intermediateResult.reset(new LTLNode(apset->find(formula.getAp()))); |
|||
} |
|||
|
|||
/*! |
|||
* Visit method for an ltl Bounded Eventually formula. |
|||
* Stores the converted formula (in LTL2Dstar classes) in the field intermediateResult |
|||
* |
|||
* As Bounded Eventually is not supported in LTL2Dstar, the formula is unfolded into an equivalent |
|||
* formula using nested Next operators. |
|||
* |
|||
* @param formula Reference to the Bounded Eventually formula that is to be visited. |
|||
*/ |
|||
virtual void visitBoundedEventually(const storm::property::ltl::BoundedEventually<T>& formula) { |
|||
this->visit(formula.getChild()); |
|||
LTLNode_p child = intermediateResult; |
|||
|
|||
//As ltl2dstar does not support bounded eventually, we transform it to (phi || X (phi || X ( ... ) ) ) |
|||
for (uint_fast64_t i = 0; i < formula.getBound(); i++) { |
|||
LTLNode_p nextOp(new LTLNode(LTLNode::T_NEXTSTEP, intermediateResult)); |
|||
intermediateResult.reset(new LTLNode(LTLNode::T_OR, child, nextOp)); |
|||
} |
|||
//TODO: Check if this works, even though the object child is never cloned, but referenced several time in the tree... |
|||
} |
|||
|
|||
/*! |
|||
* Visit method for an ltl Bounded Until formula. |
|||
* Stores the converted formula (in LTL2Dstar classes) in the field intermediateResult |
|||
* |
|||
* As Bounded Eventually is not supported in LTL2Dstar, the formula is unfolded into an equivalent |
|||
* formula using nested Next operators. |
|||
* |
|||
* @param formula Reference to the Bounded Until formula that is to be visited. |
|||
*/ |
|||
virtual void visitBoundedUntil(const storm::property::ltl::BoundedUntil<T>& formula) { |
|||
this->visit(formula.getLeft()); |
|||
LTLNode_p left = intermediateResult; |
|||
this->visit(formula.getRight()); |
|||
LTLNode_p right = intermediateResult; |
|||
|
|||
//As ltl2dstar does not support bounded until, we transform it to (phi || psi && X (phi || X ( ... ) ) ) |
|||
for (uint_fast64_t i = 0; i < formula.getBound(); i++) { |
|||
LTLNode_p nextOp(new LTLNode(LTLNode::T_NEXTSTEP, intermediateResult)); |
|||
LTLNode_p andOp(new LTLNode(LTLNode::T_AND, left, nextOp)); |
|||
intermediateResult.reset(new LTLNode(LTLNode::T_OR, right, andOp)); |
|||
} |
|||
//TODO: Check if this works, even though the objects left and right are never cloned, |
|||
//but referenced several time in the tree... |
|||
} |
|||
|
|||
/*! |
|||
* Visit method for an ltl Eventually formula. |
|||
* Stores the converted formula (in LTL2Dstar classes) in the field intermediateResult |
|||
* |
|||
* In LTL2DStar, the type for this formula is called "Finally". |
|||
* |
|||
* @param formula Reference to the Eventually formula that is to be visited. |
|||
*/ |
|||
virtual void visitEventually(const storm::property::ltl::Eventually<T>& formula) { |
|||
this->visit(formula.getChild()); |
|||
LTLNode_p child = intermediateResult; |
|||
intermediateResult.reset(new LTLNode(LTLNode::T_FINALLY, child)); |
|||
} |
|||
|
|||
/*! |
|||
* Visit method for an ltl Globally formula. |
|||
* Stores the converted formula (in LTL2Dstar classes) in the field intermediateResult |
|||
* |
|||
* @param formula Reference to the Globally formula that is to be visited. |
|||
*/ |
|||
virtual void visitGlobally(const storm::property::ltl::Globally<T>& formula) { |
|||
this->visit(formula.getChild()); |
|||
LTLNode_p child = intermediateResult; |
|||
intermediateResult.reset(new LTLNode(LTLNode::T_GLOBALLY, child)); |
|||
} |
|||
|
|||
/*! |
|||
* Visit method for an ltl Next formula. |
|||
* Stores the converted formula (in LTL2Dstar classes) in the field intermediateResult |
|||
* |
|||
* @param formula Reference to the Next formula that is to be visited. |
|||
*/ |
|||
virtual void visitNext(const storm::property::ltl::Next<T>& formula) { |
|||
this->visit(formula.getChild()); |
|||
LTLNode_p child = intermediateResult; |
|||
intermediateResult.reset(new LTLNode(LTLNode::T_NEXTSTEP, child)); |
|||
} |
|||
|
|||
/*! |
|||
* Visit method for an ltl Not formula. |
|||
* Stores the converted formula (in LTL2Dstar classes) in the field intermediateResult |
|||
* |
|||
* @param formula Reference to the Not formula that is to be visited. |
|||
*/ |
|||
virtual void visitNot(const storm::property::ltl::Not<T>& formula) { |
|||
this->visit(formula.getChild()); |
|||
LTLNode_p child = intermediateResult; |
|||
intermediateResult.reset(new LTLNode(LTLNode::T_NOT, child)); |
|||
} |
|||
|
|||
/*! |
|||
* Visit method for an ltl Or formula. |
|||
* Stores the converted formula (in LTL2Dstar classes) in the field intermediateResult |
|||
* |
|||
* @param formula Reference to the Or formula that is to be visited. |
|||
*/ |
|||
virtual void visitOr(const storm::property::ltl::Or<T>& formula) { |
|||
this->visit(formula.getLeft()); |
|||
LTLNode_p left = intermediateResult; |
|||
this->visit(formula.getRight()); |
|||
LTLNode_p right = intermediateResult; |
|||
intermediateResult.reset(new LTLNode(LTLNode::T_OR, left, right)); |
|||
} |
|||
|
|||
/*! |
|||
* Visit method for an ltl Until formula. |
|||
* Stores the converted formula (in LTL2Dstar classes) in the field intermediateResult |
|||
* |
|||
* @param formula Reference to the Until formula that is to be visited. |
|||
*/ |
|||
virtual void visitUntil(const storm::property::ltl::Until<T>& formula) { |
|||
this->visit(formula.getLeft()); |
|||
LTLNode_p left = intermediateResult; |
|||
this->visit(formula.getRight()); |
|||
LTLNode_p right = intermediateResult; |
|||
intermediateResult.reset(new LTLNode(LTLNode::T_UNTIL, left, right)); |
|||
} |
|||
|
|||
/*! |
|||
* @brief |
|||
* Start the conversion of the formula tree |
|||
* |
|||
* As LTL2DStar uses the shared pointers of the boost library, the converted object is stored in these. |
|||
* |
|||
* @param formula The LTL formula to be converted |
|||
* @return A boost shared pointer to the converted formula. |
|||
*/ |
|||
LTLNode_p convertToLtlNode_p(storm::property::ltl::AbstractLtlFormula<T> const& formula) { |
|||
this->visit(formula); |
|||
return intermediateResult; |
|||
} |
|||
|
|||
/*! |
|||
* Returns an APSet object which contains all atomic propositions of the labeling parameter |
|||
* @param labeling The labeling of which the APs are extracted |
|||
* @return |
|||
*/ |
|||
static APSet_cp extractAPSetFromLabeling(storm::models::AtomicPropositionsLabeling const& labeling) { |
|||
//TODO: Make sure that the index of the AP is the same in the labeling and the APSet. |
|||
APSet* apset = new APSet(); |
|||
|
|||
//Insert each AP of the labeling into the APSet |
|||
for (auto it = labeling.getNameToLabelingMap().begin(); |
|||
it != labeling.getNameToLabelingMap().end(); |
|||
it++) { |
|||
apset->addAP(it->first); |
|||
} |
|||
|
|||
//Insert our object into the shared pointer |
|||
return APSet_cp(apset); |
|||
} |
|||
|
|||
/*! |
|||
* Convert an LTL formula using the storm data structures into an equivalent one for LTL2Dstar. |
|||
* |
|||
* @note |
|||
* Storm allows bounded until and eventually operators, which are not available in LTL2Dstar |
|||
* These formulas are unfolded into an equivalent formula using nested next operators. |
|||
* |
|||
* @param formula The formula object to convert |
|||
* @param labeling A labeling that contains (at least) each AP that is used in the formula |
|||
* @return |
|||
*/ |
|||
static LTLFormula convert(storm::property::ltl::AbstractLtlFormula<T> const& formula, |
|||
storm::models::AtomicPropositionsLabeling const& labeling) { |
|||
//First an APSet is extracted out of the labeling |
|||
APSet_cp apset = extractAPSetFromLabeling(labeling); |
|||
|
|||
//The visitor has to be an actual object, which is created here |
|||
Ltl2dstarFormulaAdapter adapter(apset); |
|||
|
|||
//The return value is the result of the visitor object |
|||
return LTLFormula(adapter.convertToLtlNode_p(formula), apset); |
|||
} |
|||
|
|||
protected: |
|||
/*! |
|||
* Constructor is protected, as the object should only be created in the static convert method. |
|||
* |
|||
* @param apset A set of atomic propositions (of LTL2Dstar) |
|||
*/ |
|||
Ltl2dstarFormulaAdapter(APSet_cp apset) : |
|||
apset(apset) { |
|||
//Intentionally left empty |
|||
} |
|||
|
|||
private: |
|||
/*! |
|||
* Used to store the intermediate results of the conversion routine |
|||
*/ |
|||
LTLNode_p intermediateResult; |
|||
|
|||
/*! |
|||
* Stores the apset information... |
|||
*/ |
|||
APSet_cp apset; |
|||
|
|||
|
|||
|
|||
}; |
|||
|
|||
} /* namespace adapters */ |
|||
} /* namespace storm */ |
|||
|
|||
#endif /* STORM_ADAPTER_LTL2DSTARFORMULAADAPTER_H_ */ |
@ -1,74 +0,0 @@ |
|||
/*
|
|||
* Ltl2dstarFormulaAdapterTest.cpp |
|||
* |
|||
* Created on: 01.06.2013 |
|||
* Author: thomas |
|||
*/ |
|||
|
|||
|
|||
|
|||
#include "gtest/gtest.h"
|
|||
|
|||
#include "src/formula/Ltl.h"
|
|||
#include "src/adapters/Ltl2dstarFormulaAdapter.h"
|
|||
#include "src/parser/LtlParser.h"
|
|||
|
|||
class Ltl2dstarFormulaAdapterTest : public testing::Test { |
|||
protected: |
|||
virtual void SetUp() { |
|||
labeling.addAtomicProposition("a"); |
|||
labeling.addAtomicProposition("b"); |
|||
} |
|||
|
|||
//virtual void TearDown()
|
|||
|
|||
storm::models::AtomicPropositionsLabeling labeling = storm::models::AtomicPropositionsLabeling(1,2); |
|||
}; |
|||
|
|||
TEST_F(Ltl2dstarFormulaAdapterTest, ConvertAndFormulaTest) { |
|||
storm::parser::LtlParser parser ("a & b"); |
|||
|
|||
LTLFormula ltlFormula = storm::adapters::Ltl2dstarFormulaAdapter<double>::convert(*parser.getFormula(), labeling); |
|||
|
|||
ASSERT_EQ(ltlFormula.toStringInfix(), "(a) && (b)"); |
|||
|
|||
delete parser.getFormula(); |
|||
} |
|||
|
|||
TEST_F(Ltl2dstarFormulaAdapterTest, ConvertUntilFormulaTest) { |
|||
storm::parser::LtlParser parser ("a U b"); |
|||
|
|||
LTLFormula ltlFormula = storm::adapters::Ltl2dstarFormulaAdapter<double>::convert(*parser.getFormula(), labeling); |
|||
|
|||
ASSERT_EQ(ltlFormula.toStringInfix(), "(a) U (b)"); |
|||
delete parser.getFormula(); |
|||
} |
|||
|
|||
TEST_F(Ltl2dstarFormulaAdapterTest, ConvertNextEventuallyFormulaTest) { |
|||
storm::parser::LtlParser parser ("(F a) & X b"); |
|||
|
|||
LTLFormula ltlFormula = storm::adapters::Ltl2dstarFormulaAdapter<double>::convert(*parser.getFormula(), labeling); |
|||
|
|||
ASSERT_EQ(ltlFormula.toStringInfix(), "(<> (a)) && (X (b))"); |
|||
delete parser.getFormula(); |
|||
} |
|||
|
|||
TEST_F(Ltl2dstarFormulaAdapterTest, ConvertBoundedEventuallyFormulaTest) { |
|||
storm::parser::LtlParser parser ("F <= 3 a"); |
|||
|
|||
LTLFormula ltlFormula = storm::adapters::Ltl2dstarFormulaAdapter<double>::convert(*parser.getFormula(), labeling); |
|||
|
|||
//Bounded eventually is "unrolled", as Ltl2dstar does not support bounded operators
|
|||
ASSERT_EQ(ltlFormula.toStringInfix(), "(a) || (X ((a) || (X ((a) || (X (a))))))"); |
|||
delete parser.getFormula(); |
|||
} |
|||
|
|||
TEST_F(Ltl2dstarFormulaAdapterTest, ConvertBoundedUntilFormulaTest) { |
|||
storm::parser::LtlParser parser ("a U<=3 b"); |
|||
|
|||
LTLFormula ltlFormula = storm::adapters::Ltl2dstarFormulaAdapter<double>::convert(*parser.getFormula(), labeling); |
|||
|
|||
//Bounded until is "unrolled", as Ltl2dstar does not support bounded operators
|
|||
ASSERT_EQ(ltlFormula.toStringInfix(), "(b) || ((a) && (X ((b) || ((a) && (X ((b) || ((a) && (X (b)))))))))"); |
|||
delete parser.getFormula(); |
|||
} |
Write
Preview
Loading…
Cancel
Save
Reference in new issue