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Simplify constraint evaluation

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This commit is contained in:
Jakob Rath 2022-11-23 12:19:03 +01:00
parent e4999b07aa
commit fdc186b204
10 changed files with 95 additions and 113 deletions
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8
src/math/polysat/ule_constraint.h
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@ -27,7 +27,9 @@ namespace polysat {
ule_constraint(constraint_manager& m, pdd const& l, pdd const& r);
static void simplify(bool& is_positive, pdd& lhs, pdd& rhs);
static bool is_always_false(bool is_positive, pdd const& lhs, pdd const& rhs);
static bool is_always_true(bool is_positive, pdd const& lhs, pdd const& rhs) { return eval(lhs, rhs) == to_lbool(is_positive); }
static bool is_always_false(bool is_positive, pdd const& lhs, pdd const& rhs) { return is_always_true(!is_positive, lhs, rhs); }
static lbool eval(pdd const& lhs, pdd const& rhs);
public:
~ule_constraint() override {}
@ -36,8 +38,8 @@ namespace polysat {
static std::ostream& display(std::ostream& out, lbool status, pdd const& lhs, pdd const& rhs);
std::ostream& display(std::ostream& out, lbool status) const override;
std::ostream& display(std::ostream& out) const override;
bool is_always_false(bool is_positive) const override;
bool is_currently_false(assignment const& a, bool is_positive) const override;
lbool eval() const override;
lbool eval(assignment const& a) const override;
void narrow(solver& s, bool is_positive, bool first) override;
inequality as_inequality(bool is_positive) const override;
unsigned hash() const override;