cprover
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#include <dimacs_cnf.h>
Public Member Functions | |
dimacs_cnft () | |
virtual | ~dimacs_cnft () |
virtual void | write_dimacs_cnf (std::ostream &out) |
const std::string | solver_text () 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... | |
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cnf_clause_listt () | |
virtual | ~cnf_clause_listt () |
virtual void | lcnf (const bvt &bv) |
virtual tvt | l_get (literalt) const |
virtual resultt | prop_solve () |
virtual size_t | no_clauses () const |
clausest & | get_clauses () |
void | copy_to (cnft &cnf) const |
size_t | hash () const |
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cnft () | |
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) |
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... | |
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propt () | |
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 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 bool | has_is_in_conflict () const |
virtual void | set_frozen (literalt) |
virtual void | set_time_limit_seconds (uint32_t) |
Protected Member Functions | |
void | write_problem_line (std::ostream &out) |
void | write_clauses (std::ostream &out) |
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bool | process_clause (const bvt &bv, bvt &dest) |
filter 'true' from clause, eliminate duplicates, recognise trivially satisfied clauses More... | |
Protected Attributes | |
bool | break_lines |
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clausest | clauses |
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size_t | _no_variables |
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bvt | lcnf_bv |
Additional Inherited Members | |
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typedef std::list< bvt > | clausest |
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enum | resultt { resultt::P_SATISFIABLE, resultt::P_UNSATISFIABLE, resultt::P_ERROR } |
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static size_t | hash_clause (const bvt &bv) |
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static bvt | eliminate_duplicates (const bvt &) |
eliminate duplicates from given vector of literals More... | |
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static bool | is_all (const bvt &bv, literalt l) |
Definition at line 17 of file dimacs_cnf.h.
dimacs_cnft::dimacs_cnft | ( | ) |
Definition at line 18 of file dimacs_cnf.cpp.
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inlinevirtual |
Definition at line 21 of file dimacs_cnf.h.
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overridevirtual |
Returns true if an assumption is in the final conflict.
Note that only literals that are assumptions (see set_assumptions) may be queried.
Implements propt.
Definition at line 27 of file dimacs_cnf.cpp.
References UNREACHABLE.
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overridevirtual |
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inlineoverridevirtual |
Reimplemented from cnf_clause_listt.
Reimplemented in pbs_dimacs_cnft, and satcheck_zcoret.
Definition at line 27 of file dimacs_cnf.h.
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protected |
Definition at line 76 of file dimacs_cnf.cpp.
References break_lines, cnf_clause_listt::clauses, CNF_DUMP_BLOCK_SIZE, and write_dimacs_clause().
Referenced by write_dimacs_cnf(), and qdimacs_cnft::write_qdimacs_cnf().
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virtual |
Definition at line 37 of file dimacs_cnf.cpp.
References write_clauses(), and write_problem_line().
Referenced by satcheck_zcoret::prop_solve(), and pbs_dimacs_cnft::prop_solve().
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protected |
Definition at line 43 of file dimacs_cnf.cpp.
References cnf_clause_listt::clauses, and cnft::no_variables().
Referenced by write_dimacs_cnf(), and qdimacs_cnft::write_qdimacs_cnf().
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protected |
Definition at line 39 of file dimacs_cnf.h.
Referenced by qbf_skizzo_coret::prop_solve(), qbf_qube_coret::prop_solve(), qbf_qube_coret::qbf_qube_coret(), qbf_qubet::qbf_qubet(), qbf_skizzo_coret::qbf_skizzo_coret(), qbf_skizzot::qbf_skizzot(), and write_clauses().