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Weaken evaluation for new constraints in viable lemma

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Jakob Rath 2022-12-22 16:24:27 +01:00
parent be20c0d54e
commit 21ea05b31c
3 changed files with 27 additions and 17 deletions
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17
src/math/polysat/clause_builder.h
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@ -51,19 +51,20 @@ namespace polysat {
void insert(signed_constraint c);
void insert(inequality const& i) { insert(i.as_signed_constraint()); }
/// Insert constraints into the clause.
/// If they are not yet on the search stack, add them as evaluated to the given status.
/// \pre Constraint must evaluate to true or false according to the given status in the current assignment.
void insert_eval(sat::literal lit, bool status);
void insert_eval(signed_constraint c, bool status);
/// Insert constraints into the clause.
/// If they are not yet on the search stack, add them as evaluated to \b false.
/// \pre Constraint must be \b false in the current assignment.
void insert_eval(sat::literal lit) { insert_eval(lit, false); }
void insert_eval(signed_constraint c) { insert_eval(c, false); }
void insert_eval(sat::literal lit);
void insert_eval(signed_constraint c);
void insert_eval(inequality const& i) { insert_eval(i.as_signed_constraint()); }
/// Insert constraints into the clause.
/// If possible, evaluate them as in insert_eval.
/// Evaluation might not be possible if not all variables in the constraint are assigned.
/// \pre Constraint must be \b non-true in the current assignment.
void insert_try_eval(sat::literal lit);
void insert_try_eval(signed_constraint lit);
using const_iterator = decltype(m_literals)::const_iterator;
const_iterator begin() const { return m_literals.begin(); }
const_iterator end() const { return m_literals.end(); }