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clause_builder::set_redundant

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This commit is contained in:
Jakob Rath 2022-11-30 14:50:53 +01:00
parent 9b10733ebd
commit 29180e7d0b
4 changed files with 15 additions and 6 deletions
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5
src/math/polysat/clause_builder.h
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@ -28,6 +28,7 @@ namespace polysat {
/// True iff clause contains a literal that is always true
/// (only this specific case of tautology is covered by this flag)
bool m_is_tautology = false;
bool m_redundant = clause::redundant_default;
public:
clause_builder(solver& s);
@ -36,9 +37,11 @@ namespace polysat {
clause_builder& operator=(clause_builder const& s) = delete;
clause_builder& operator=(clause_builder&& s) = default;
bool empty() const { return m_literals.empty() && !m_is_tautology; }
bool empty() const { return m_literals.empty() && !m_is_tautology && m_redundant == clause::redundant_default; }
void reset();
void set_redundant(bool r) { m_redundant = r; }
/// Build the clause. This will reset the clause builder so it can be reused.
/// Returns nullptr if the clause is a tautology and should not be added to the solver.
clause_ref build();