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build_lemma returns clause_builder; adjust reason in revert_bool_decision

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This commit is contained in:
Jakob Rath 2021-09-07 15:02:29 +02:00
parent 733c21bb20
commit 24f96acf4f
8 changed files with 83 additions and 75 deletions
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13
src/math/polysat/clause_builder.h
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@ -27,16 +27,17 @@ namespace polysat {
class clause_builder {
solver& m_solver;
sat::literal_vector m_literals;
scoped_ptr_vector<constraint> m_new_constraints;
p_dependency_ref m_dep;
unsigned m_level = 0;
public:
clause_builder(solver& s);
bool empty() const { return m_literals.empty() && m_new_constraints.empty() && m_dep == nullptr && m_level == 0; }
bool empty() const { return m_literals.empty() && m_dep == nullptr && m_level == 0; }
void reset();
unsigned level() const { return m_level; }
/// Build the clause. This will reset the clause builder so it can be reused.
clause_ref build();
@ -45,9 +46,15 @@ namespace polysat {
/// Add a literal to the clause.
/// Intended to be used for literals representing a constraint that already exists.
void push_literal(sat::literal lit);
void push(signed_constraint c);
/// Add a constraint to the clause that does not yet exist in the solver so far.
void push_new_constraint(signed_constraint c);
// void push_new_constraint(signed_constraint c);
using const_iterator = decltype(m_literals)::const_iterator;
const_iterator begin() const { return m_literals.begin(); }
const_iterator end() const { return m_literals.end(); }
};
}