The base class for every SMT-based method. More...

#include <SMTMethod.h>

Inheritance diagram for gsjj::passive::SMT::SMTMethod:

Collaboration diagram for gsjj::passive::SMT::SMTMethod:

Public Member Functions
	SMTMethod ()=delete

virtual	~SMTMethod ()

bool	solve () override
	Solves the SAT/SMT problem induced by the method. More...

std::unique_ptr< DFA< char > >	constructDFA () override
	Constructs the DFA induced by the variables according to the method. More...

virtual void	setStopTrigger (const std::chrono::seconds &timeLimit, std::atomic_bool &stopTrigger, const bool *stopPointer) override
	Sets the stop trigger for this method. More...

Public Member Functions inherited from gsjj::passive::Method
	Method ()=delete

virtual	~Method ()

bool	hasSolution () const
	If solve() has been called and if there exists a solution, return True. More...

unsigned int	numberOfStates () const
	Gives the number of states of the prospected DFA (the n) More...

double	timeToSolve () const
	Gives the CPU time taken to solve the problem. More...

Protected Member Functions
virtual void	createVariables ()=0
	Creates all needed variables for the method. More...

virtual CVC4::Expr	createConstraints ()=0
	Creates an unique expression describing the constraints of this method. More...

virtual std::unique_ptr< DFA< char > >	toDFA ()=0
	Effectively creates the DFA from the values of the variables in the SMT solver (see SMTMethod::m_SMTEngine) More...

	SMTMethod (const std::set< std::string > &SpSet, const std::set< std::string > &SmSet, const std::set< std::string > &SSet, const std::set< std::string > &prefixesSet, const std::set< char > &alphabetSet, unsigned int n)

Protected Member Functions inherited from gsjj::passive::Method
	Method (const std::set< std::string > &SpSet, const std::set< std::string > &SmSet, const std::set< std::string > &SSet, const std::set< std::string > &prefixesSet, const std::set< char > &alphabetSet, unsigned int n)
	Creates the method. More...

Protected Attributes
CVC4::ExprManager	m_exprManager
	This must be used to create new variables, constants and expressions. More...

CVC4::SmtEngine	m_SMTEngine
	This computes acceptable values for the variables and allows to retrieve them. More...

Protected Attributes inherited from gsjj::passive::Method
const std::set< std::string >	m_Sp
	The set of words to accept . More...

const std::set< std::string >	m_Sm
	The set of words to reject . More...

const unsigned int	m_numberStates
	The number of states in the DFA to construct. More...

const std::set< std::string >	m_S
	In the code, $S = S_+ \cup S_-$ . More...

const std::set< std::string >	m_prefixes
	$Pref(S_+ \cup S_-)$ More...

const std::set< char >	m_alphabet
	$\Sigma$ More...

bool	m_triedSolve

bool	m_hasSolution

double	m_cpuTimeStart

double	m_cpuTimeEnd

Detailed Description

The base class for every SMT-based method.

Definition at line 20 of file SMTMethod.h.

Constructor & Destructor Documentation

◆ SMTMethod() [1/2]

gsjj::passive::SMT::SMTMethod::SMTMethod ( )

delete

◆ ~SMTMethod()

gsjj::passive::SMT::SMTMethod::~SMTMethod ( )

virtual

Definition at line 17 of file SMTMethod.cpp.

◆ SMTMethod() [2/2]

gsjj::passive::SMT::SMTMethod::SMTMethod	(	const std::set< std::string > &	SpSet,
		const std::set< std::string > &	SmSet,
		const std::set< std::string > &	SSet,
		const std::set< std::string > &	prefixesSet,
		const std::set< char > &	alphabetSet,
		unsigned int	n
	)

protected

Definition at line 8 of file SMTMethod.cpp.

Member Function Documentation

◆ constructDFA()

std::unique_ptr< DFA< char > > gsjj::passive::SMT::SMTMethod::constructDFA ( )

overridevirtual

Constructs the DFA induced by the variables according to the method.

If the SAT/SMT problem has not yet been solved, the function automatically solves it. If the SAT/SMT problem is unsolvable, returns a null pointer.

Returns: An unique_ptr to the constructed DFA or an empty pointer if the problem is not solvable

Implements gsjj::passive::Method.

Definition at line 33 of file SMTMethod.cpp.

◆ createConstraints()

virtual CVC4::Expr gsjj::passive::SMT::SMTMethod::createConstraints ( )

protectedpure virtual

Creates an unique expression describing the constraints of this method.

Returns: The expression

Implemented in gsjj::passive::SMT::BiermannMethod, and gsjj::passive::SMT::NeiderJansenMethod.

◆ createVariables()

virtual void gsjj::passive::SMT::SMTMethod::createVariables ( )

protectedpure virtual

Creates all needed variables for the method.

Implemented in gsjj::passive::SMT::BiermannMethod, and gsjj::passive::SMT::NeiderJansenMethod.

◆ setStopTrigger()

void gsjj::passive::SMT::SMTMethod::setStopTrigger	(	const std::chrono::seconds &	timeLimit,
		std::atomic_bool &	stopTrigger,
		const bool *	stopPointer
	)

overridevirtual

Sets the stop trigger for this method.

Since we use three different solvers and each has its own way to stop (CVC4 uses a function to set a time limit, Maple is in C++ so we can use an atomic variable and Limboole is in C and we must use a pointer), we must provide each possibility

Parameters

timeLimit	The time in seconds the method can take. It's used by SMT methods.
stopTrigger	The atomic_bool variable. Once set to true, the method will stop. It's used by CNF methods.
stopPointer	The pointer variable. Once the value is set to true, the method will stop. It's used by NonCNF methods.

Implements gsjj::passive::Method.

Definition at line 43 of file SMTMethod.cpp.

◆ solve()

bool gsjj::passive::SMT::SMTMethod::solve ( )

overridevirtual

Solves the SAT/SMT problem induced by the method.

Il also creates every variable and clause needed

Returns: True iff the problem is solvable

Implements gsjj::passive::Method.

Definition at line 21 of file SMTMethod.cpp.

◆ toDFA()

virtual std::unique_ptr<DFA<char> > gsjj::passive::SMT::SMTMethod::toDFA ( )

protectedpure virtual

Effectively creates the DFA from the values of the variables in the SMT solver (see SMTMethod::m_SMTEngine)

Returns: An unique_ptr to the constructed DFA

Implemented in gsjj::passive::SMT::BiermannMethod, and gsjj::passive::SMT::NeiderJansenMethod.

Member Data Documentation

◆ m_exprManager

CVC4::ExprManager gsjj::passive::SMT::SMTMethod::m_exprManager

protected

This must be used to create new variables, constants and expressions.

Definition at line 35 of file SMTMethod.h.

◆ m_SMTEngine

CVC4::SmtEngine gsjj::passive::SMT::SMTMethod::m_SMTEngine

protected

This computes acceptable values for the variables and allows to retrieve them.

Definition at line 39 of file SMTMethod.h.

The documentation for this class was generated from the following files:

include/gsjj/passive/SMT/SMTMethod.h
src/passive/SMT/SMTMethod.cpp

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ SMTMethod() [1/2]

◆ ~SMTMethod()

◆ SMTMethod() [2/2]

Member Function Documentation

◆ constructDFA()

◆ createConstraints()

◆ createVariables()

◆ setStopTrigger()

◆ solve()

◆ toDFA()

Member Data Documentation

◆ m_exprManager

◆ m_SMTEngine