cprover
cnf_solvert Class Reference

#include <cnf.h>

+ Inheritance diagram for cnf_solvert:
+ Collaboration diagram for cnf_solvert:

Public Member Functions

 cnf_solvert (message_handlert &message_handler)
 
virtual size_t no_clauses () const override
 
- 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...
 
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 void lcnf (const bvt &bv)=0
 
virtual bool has_set_to () const
 
virtual bool cnf_handled_well () const
 
virtual void set_assumptions (const bvt &)
 
virtual bool has_set_assumptions () const
 
virtual void set_variable_name (literalt, const irep_idt &)
 
bvt new_variables (std::size_t width)
 generates a bitvector of given width with new variables More...
 
virtual const std::string solver_text ()=0
 
resultt prop_solve ()
 
virtual tvt l_get (literalt a) const =0
 
virtual void set_assignment (literalt a, bool value)=0
 
virtual bool is_in_conflict (literalt l) const =0
 Returns true if an assumption is in the final conflict. More...
 
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 Types

enum  statust { statust::INIT, statust::SAT, statust::UNSAT, statust::ERROR }
 

Protected Attributes

statust status
 
size_t clause_counter
 
- 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 propt
enum  resultt { resultt::P_SATISFIABLE, resultt::P_UNSATISFIABLE, resultt::P_ERROR }
 
- 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)
 filter 'true' from clause, eliminate duplicates, recognise trivially satisfied clauses More...
 
- Protected Member Functions inherited from propt
virtual resultt do_prop_solve ()=0
 
- 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 69 of file cnf.h.

Member Enumeration Documentation

◆ statust

enum cnf_solvert::statust
strongprotected
Enumerator
INIT 
SAT 
UNSAT 
ERROR 

Definition at line 83 of file cnf.h.

Constructor & Destructor Documentation

◆ cnf_solvert()

cnf_solvert::cnf_solvert ( message_handlert message_handler)
inlineexplicit

Definition at line 72 of file cnf.h.

Member Function Documentation

◆ no_clauses()

virtual size_t cnf_solvert::no_clauses ( ) const
inlineoverridevirtual

Implements cnft.

Definition at line 77 of file cnf.h.

Member Data Documentation

◆ clause_counter

size_t cnf_solvert::clause_counter
protected

Definition at line 85 of file cnf.h.

◆ status

statust cnf_solvert::status
protected

Definition at line 84 of file cnf.h.


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