#include <qbf_bdd_core.h>

Inheritance diagram for qbf_bdd_coret:

Collaboration diagram for qbf_bdd_coret:

Public Member Functions
	qbf_bdd_coret ()
	~qbf_bdd_coret () override
literalt	new_variable () override
	Generate a new variable and return it as a literal.
void	lcnf (const bvt &bv) override
literalt	lor (literalt a, literalt b) override
literalt	lor (const bvt &bv) override
	Tseitin encoding of disjunction between multiple literals.
std::string	solver_text () const override
resultt	prop_solve () override
tvt	l_get (literalt a) const override
bool	is_in_core (literalt l) const override
modeltypet	m_get (literalt a) const override
Public Member Functions inherited from qbf_bdd_certificatet
	qbf_bdd_certificatet (void)
	~qbf_bdd_certificatet (void) override
const exprt	f_get (literalt l) override
Public Member Functions inherited from qdimacs_coret
	qdimacs_coret (message_handlert &message_handler)
void	simplify_extractbits (exprt &expr) const
Public Member Functions inherited from qdimacs_cnft
	qdimacs_cnft (message_handlert &message_handler)
virtual void	write_qdimacs_cnf (std::ostream &out)
std::string	solver_text () const override
virtual void	add_quantifier (const quantifiert &quantifier)
void	add_quantifier (const quantifiert::typet type, const literalt l)
void	add_existential_quantifier (const literalt l)
void	add_universal_quantifier (const literalt l)
bool	is_quantified (const literalt l) const
bool	find_quantifier (const literalt l, quantifiert &q) const
virtual void	set_quantifier (const quantifiert::typet type, const literalt l)
void	copy_to (qdimacs_cnft &cnf) const
bool	operator== (const qdimacs_cnft &other) const
size_t	hash () const
Public Member Functions inherited from dimacs_cnft
	dimacs_cnft (message_handlert &)
virtual	~dimacs_cnft ()
virtual void	write_dimacs_cnf (std::ostream &out) const
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.
Public Member Functions inherited from cnf_clause_listt
	cnf_clause_listt (message_handlert &message_handler)
virtual	~cnf_clause_listt ()
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	land (const bvt &bv) override
	Tseitin encoding of conjunction between multiple literals.
virtual literalt	lxor (const bvt &bv) override
	Tseitin encoding of XOR between multiple literals.
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
bvt	new_variables (std::size_t width) override
	Generate a vector of new variables.
virtual size_t	no_variables () const override
virtual void	set_no_variables (size_t no)
void	gate_and (literalt a, literalt b, literalt o)
	Tseitin encoding of conjunction of two literals.
void	gate_or (literalt a, literalt b, literalt o)
	Tseitin encoding of disjunction of two literals.
void	gate_xor (literalt a, literalt b, literalt o)
	Tseitin encoding of XOR of two literals.
void	gate_nand (literalt a, literalt b, literalt o)
	Tseitin encoding of NAND of two literals.
void	gate_nor (literalt a, literalt b, literalt o)
	Tseitin encoding of NOR of two literals.
void	gate_equal (literalt a, literalt b, literalt o)
	Tseitin encoding of equality between two literals.
void	gate_implies (literalt a, literalt b, literalt o)
	Tseitin encoding of implication between two literals.
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
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

Protected Member Functions
void	compress_certificate (void)
Protected Member Functions inherited from qdimacs_cnft
void	write_prefix (std::ostream &out) const
Protected Member Functions inherited from dimacs_cnft
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
bool	process_clause (const bvt &bv, bvt &dest) const
	filter 'true' from clause, eliminate duplicates, recognise trivially satisfied clauses

Private Types
typedef std::vector< BDD * >	bdd_variable_mapt

Private Attributes
bdd_variable_mapt	bdd_variable_map
BDD *	matrix

Additional Inherited Members
Public Types inherited from qdimacs_coret
enum	modeltypet { M_TRUE , M_FALSE , M_DONTCARE , M_COMPLEX }
typedef std::pair< exprt, unsigned >	symbol_mapt
typedef std::map< unsigned, symbol_mapt >	variable_mapt
Public Types inherited from qdimacs_cnft
typedef std::vector< quantifiert >	quantifierst
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 Public Member Functions inherited from dimacs_cnft
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)
Public Attributes inherited from qdimacs_coret
variable_mapt	variable_map
Public Attributes inherited from qdimacs_cnft
quantifierst	quantifiers
Protected Types inherited from qbf_bdd_certificatet
typedef std::vector< BDD * >	model_bddst
typedef std::unordered_map< unsigned, exprt >	function_cachet
Static Protected Member Functions inherited from cnft
static bvt	eliminate_duplicates (const bvt &)
	eliminate duplicates from given vector of literals
static bool	is_all (const bvt &bv, literalt l)
Protected Attributes inherited from qbf_bdd_certificatet
Cudd *	bdd_manager
model_bddst	model_bdds
function_cachet	function_cache
Protected Attributes inherited from dimacs_cnft
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

Detailed Description

Definition at line 43 of file qbf_bdd_core.h.

Member Typedef Documentation

◆ bdd_variable_mapt

typedef std::vector<BDD*> qbf_bdd_coret::bdd_variable_mapt

private

Definition at line 46 of file qbf_bdd_core.h.

Constructor & Destructor Documentation

◆ qbf_bdd_coret()

qbf_bdd_coret::qbf_bdd_coret ( )

Definition at line 59 of file qbf_bdd_core.cpp.

◆ ~qbf_bdd_coret()

qbf_bdd_coret::~qbf_bdd_coret ( )

override

Definition at line 65 of file qbf_bdd_core.cpp.

Member Function Documentation

◆ compress_certificate()

void qbf_bdd_coret::compress_certificate ( void )

protected

Definition at line 240 of file qbf_bdd_core.cpp.

◆ is_in_core()

bool qbf_bdd_coret::is_in_core ( literalt l ) const

overridevirtual

Implements qdimacs_coret.

Definition at line 152 of file qbf_bdd_core.cpp.

◆ l_get()

tvt qbf_bdd_coret::l_get ( literalt a ) const

overridevirtual

Reimplemented from qbf_bdd_certificatet.

Definition at line 81 of file qbf_bdd_core.cpp.

◆ lcnf()

void qbf_bdd_coret::lcnf ( const bvt & bv )

overridevirtual

Reimplemented from cnf_clause_listt.

Definition at line 174 of file qbf_bdd_core.cpp.

◆ lor() [1/2]

literalt qbf_bdd_coret::lor ( const bvt & bv )

overridevirtual

Tseitin encoding of disjunction between multiple literals.

parameters: Any number of inputs to the OR gate

Returns: Output signal of the OR gate as literal

Reimplemented from cnft.

Definition at line 213 of file qbf_bdd_core.cpp.

◆ lor() [2/2]

literalt qbf_bdd_coret::lor	(	literalt	a,
		literalt	b )

overridevirtual

parameters: Two inputs to the OR gate

Returns: Output signal of the OR gate as literal

Reimplemented from cnft.

Definition at line 196 of file qbf_bdd_core.cpp.

◆ m_get()

qdimacs_coret::modeltypet qbf_bdd_coret::m_get ( literalt a ) const

overridevirtual

Implements qdimacs_coret.

Definition at line 157 of file qbf_bdd_core.cpp.

◆ new_variable()

literalt qbf_bdd_coret::new_variable ( void )

overridevirtual

Generate a new variable and return it as a literal.

Returns: New variable as literal

Reimplemented from qbf_bdd_certificatet.

Definition at line 162 of file qbf_bdd_core.cpp.

◆ prop_solve()

propt::resultt qbf_bdd_coret::prop_solve ( )

override

Definition at line 91 of file qbf_bdd_core.cpp.

◆ solver_text()

std::string qbf_bdd_coret::solver_text ( ) const

overridevirtual

Reimplemented from dimacs_cnft.

Definition at line 86 of file qbf_bdd_core.cpp.

Member Data Documentation

◆ bdd_variable_map

bdd_variable_mapt qbf_bdd_coret::bdd_variable_map

private

Definition at line 47 of file qbf_bdd_core.h.

◆ matrix

BDD* qbf_bdd_coret::matrix

private

Definition at line 49 of file qbf_bdd_core.h.

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

solvers/qbf/qbf_bdd_core.h
solvers/qbf/qbf_bdd_core.cpp

Public Member Functions

Protected Member Functions

Private Types

Private Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ bdd_variable_mapt

Constructor & Destructor Documentation

◆ qbf_bdd_coret()

◆ ~qbf_bdd_coret()

Member Function Documentation

◆ compress_certificate()

◆ is_in_core()

◆ l_get()

◆ lcnf()

◆ lor() [1/2]

◆ lor() [2/2]

◆ m_get()

◆ new_variable()

◆ prop_solve()

◆ solver_text()

Member Data Documentation

◆ bdd_variable_map

◆ matrix