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fix bug in blocked clause elimination that was enabled for external variables, fix other bugs in maxres

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2014-08-10 21:23:05 -07:00
parent 317e76a11b
commit e832bdd257
9 changed files with 233 additions and 107 deletions
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4
src/sat/sat_solver.h
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@ -328,6 +328,7 @@ namespace sat {
unsigned get_max_lvl(literal consequent, justification js);
void process_antecedent(literal antecedent, unsigned & num_marks);
void process_antecedent_for_unsat_core(literal antecedent);
void process_consequent_for_unsat_core(literal consequent, justification const& js);
void fill_ext_antecedents(literal consequent, justification js);
unsigned skip_literals_above_conflict_level();
void forget_phase_of_vars(unsigned from_lvl);
@ -425,11 +426,12 @@ namespace sat {
void display(std::ostream & out) const;
void display_watches(std::ostream & out) const;
void display_dimacs(std::ostream & out) const;
void display_assignment(std::ostream & out) const;
void display_justification(std::ostream & out, justification const& j) const;
protected:
void display_binary(std::ostream & out) const;
void display_units(std::ostream & out) const;
void display_assignment(std::ostream & out) const;
unsigned num_clauses() const;
bool is_unit(clause const & c) const;
bool is_empty(clause const & c) const;