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qbf_bdd_coret Class Reference

#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
clausestget_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)
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
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.
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_maptvariable_mapt
Public Types inherited from qdimacs_cnft
typedef std::vector< quantifiertquantifierst
Public Types inherited from cnf_clause_listt
typedef std::list< bvtclausest
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, exprtfunction_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: