#include <dimacs_cnf.h>

Inheritance diagram for dimacs_cnft:

Collaboration diagram for dimacs_cnft:

Public Member Functions
	dimacs_cnft (message_handlert &)

virtual	~dimacs_cnft ()

virtual void	write_dimacs_cnf (std::ostream &out) const

std::string	solver_text () const override

void	set_assignment (literalt a, bool value) override

bool	is_in_conflict (literalt l) const override
	Returns true if an assumption is in the final conflict. More...

Public Member Functions inherited from cnf_clause_listt
	cnf_clause_listt (message_handlert &message_handler)

virtual	~cnf_clause_listt ()

void	lcnf (const bvt &bv) override

tvt	l_get (literalt) const override

size_t	no_clauses () const override

clausest &	get_clauses ()

void	copy_to (cnft &cnf) const

size_t	hash () const

Public Member Functions inherited from cnft
	cnft (message_handlert &message_handler)

virtual	~cnft ()

virtual literalt	land (literalt a, literalt b) override

virtual literalt	lor (literalt a, literalt b) override

virtual literalt	land (const bvt &bv) override
	Tseitin encoding of conjunction between multiple literals. More...

virtual literalt	lor (const bvt &bv) override
	Tseitin encoding of disjunction between multiple literals. More...

virtual literalt	lxor (const bvt &bv) override
	Tseitin encoding of XOR between multiple literals. More...

virtual literalt	lxor (literalt a, literalt b) override

virtual literalt	lnand (literalt a, literalt b) override

virtual literalt	lnor (literalt a, literalt b) override

virtual literalt	lequal (literalt a, literalt b) override

virtual literalt	limplies (literalt a, literalt b) override

virtual literalt	lselect (literalt a, literalt b, literalt c) override

virtual literalt	new_variable () override
	Generate a new variable and return it as a literal. More...

bvt	new_variables (std::size_t width) override
	Generate a vector of new variables. More...

virtual size_t	no_variables () const override

virtual void	set_no_variables (size_t no)

Public Member Functions inherited from propt
	propt (message_handlert &message_handler)

virtual	~propt ()

virtual void	set_equal (literalt a, literalt b)
	asserts a==b in the propositional formula More...

virtual void	l_set_to (literalt a, bool value)

void	l_set_to_true (literalt a)

void	l_set_to_false (literalt a)

void	lcnf (literalt l0, literalt l1)

void	lcnf (literalt l0, literalt l1, literalt l2)

void	lcnf (literalt l0, literalt l1, literalt l2, literalt l3)

virtual bool	has_set_to () const

virtual bool	cnf_handled_well () const

virtual bool	has_assumptions () const

virtual void	set_variable_name (literalt, const irep_idt &)

resultt	prop_solve ()

resultt	prop_solve (const bvt &assumptions)

virtual bool	has_is_in_conflict () const

virtual void	set_frozen (literalt)

virtual void	set_time_limit_seconds (uint32_t)

std::size_t	get_number_of_solver_calls () const

Static Public Member Functions
static void	write_dimacs_clause (const bvt &, std::ostream &, bool break_lines)

Static Public Member Functions inherited from cnf_clause_listt
static size_t	hash_clause (const bvt &bv)

Protected Member Functions
void	write_problem_line (std::ostream &out) const

void	write_clauses (std::ostream &out) const

Protected Member Functions inherited from cnf_clause_listt
resultt	do_prop_solve (const bvt &) override

Protected Member Functions inherited from cnft
void	gate_and (literalt a, literalt b, literalt o)
	Tseitin encoding of conjunction of two literals. More...

void	gate_or (literalt a, literalt b, literalt o)
	Tseitin encoding of disjunction of two literals. More...

void	gate_xor (literalt a, literalt b, literalt o)
	Tseitin encoding of XOR of two literals. More...

void	gate_nand (literalt a, literalt b, literalt o)
	Tseitin encoding of NAND of two literals. More...

void	gate_nor (literalt a, literalt b, literalt o)
	Tseitin encoding of NOR of two literals. More...

void	gate_equal (literalt a, literalt b, literalt o)
	Tseitin encoding of equality between two literals. More...

void	gate_implies (literalt a, literalt b, literalt o)
	Tseitin encoding of implication between two literals. More...

bool	process_clause (const bvt &bv, bvt &dest) const
	filter 'true' from clause, eliminate duplicates, recognise trivially satisfied clauses More...

Protected Attributes
bool	break_lines

Protected Attributes inherited from cnf_clause_listt
clausest	clauses

Protected Attributes inherited from cnft
size_t	_no_variables

Protected Attributes inherited from propt
bvt	lcnf_bv

messaget	log

std::size_t	number_of_solver_calls = 0

Additional Inherited Members
Public Types inherited from cnf_clause_listt
typedef std::list< bvt >	clausest

Public Types inherited from propt
enum class	resultt { P_SATISFIABLE , P_UNSATISFIABLE , P_ERROR }

Static Protected Member Functions inherited from cnft
static bvt	eliminate_duplicates (const bvt &)
	eliminate duplicates from given vector of literals More...

static bool	is_all (const bvt &bv, literalt l)

Detailed Description

Definition at line 17 of file dimacs_cnf.h.

Constructor & Destructor Documentation

◆ dimacs_cnft()

dimacs_cnft::dimacs_cnft ( message_handlert & message_handler )

explicit

Definition at line 17 of file dimacs_cnf.cpp.

◆ ~dimacs_cnft()

virtual dimacs_cnft::~dimacs_cnft ( )

inlinevirtual

Definition at line 21 of file dimacs_cnf.h.

Member Function Documentation

◆ is_in_conflict()

bool dimacs_cnft::is_in_conflict ( literalt l ) const

overridevirtual

Returns true if an assumption is in the final conflict.

Note that only literals that are assumptions (see set_assumptions) may be queried.

Returns: true iff the given literal is part of the final conflict

Implements propt.

Definition at line 27 of file dimacs_cnf.cpp.

◆ set_assignment()

void dimacs_cnft::set_assignment	(	literalt	a,
		bool	value
	)

overridevirtual

Implements propt.

Definition at line 22 of file dimacs_cnf.cpp.

◆ solver_text()

std::string dimacs_cnft::solver_text ( ) const

inlineoverridevirtual

Reimplemented from cnf_clause_listt.

Reimplemented in satcheck_zcoret, and pbs_dimacs_cnft.

Definition at line 27 of file dimacs_cnf.h.

◆ write_clauses()

void dimacs_cnft::write_clauses ( std::ostream & out ) const

protected

Definition at line 79 of file dimacs_cnf.cpp.

◆ write_dimacs_clause()

void dimacs_cnft::write_dimacs_clause	(	const bvt &	clause,
		std::ostream &	out,
		bool	break_lines
	)

static

Definition at line 53 of file dimacs_cnf.cpp.

◆ write_dimacs_cnf()

void dimacs_cnft::write_dimacs_cnf ( std::ostream & out ) const

virtual

Definition at line 40 of file dimacs_cnf.cpp.

◆ write_problem_line()

void dimacs_cnft::write_problem_line ( std::ostream & out ) const

protected

Definition at line 46 of file dimacs_cnf.cpp.

Member Data Documentation

◆ break_lines

bool dimacs_cnft::break_lines

protected

Definition at line 42 of file dimacs_cnf.h.

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

/home/runner/work/cbmc/cbmc/src/solvers/sat/dimacs_cnf.h
/home/runner/work/cbmc/cbmc/src/solvers/sat/dimacs_cnf.cpp

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ dimacs_cnft()

◆ ~dimacs_cnft()

Member Function Documentation

◆ is_in_conflict()

◆ set_assignment()

◆ solver_text()

◆ write_clauses()

◆ write_dimacs_clause()

◆ write_dimacs_cnf()

◆ write_problem_line()

Member Data Documentation

◆ break_lines