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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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12
src/math/polysat/umul_ovfl_constraint.h
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@ -25,21 +25,21 @@ namespace polysat {
umul_ovfl_constraint(constraint_manager& m, pdd const& p, pdd const& q);
void simplify();
bool is_always_false(bool is_positive, pdd const& p, pdd const& q) const;
bool is_always_true(bool is_positive, pdd const& p, pdd const& q) const;
static bool is_always_true(bool is_positive, pdd const& p, pdd const& q) { return eval(p, q) == to_lbool(is_positive); }
static bool is_always_false(bool is_positive, pdd const& p, pdd const& q) { return is_always_true(!is_positive, p, q); }
static lbool eval(pdd const& p, pdd const& q);
bool narrow_bound(solver& s, bool is_positive, pdd const& p0, pdd const& q0, pdd const& p, pdd const& q);
bool try_viable(solver& s, bool is_positive, pdd const& p0, pdd const& q0, pdd const& p, pdd const& q);
lbool eval(pdd const& p, pdd const& q) const;
public:
~umul_ovfl_constraint() override {}
pdd const& p() const { return m_p; }
pdd const& q() const { return m_q; }
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;
lbool eval() const override;
lbool eval(assignment const& a) const override;
void narrow(solver& s, bool is_positive, bool first) override;
bool is_currently_false(assignment const& a, bool is_positive) const override;
inequality as_inequality(bool is_positive) const override { throw default_exception("is not an inequality"); }
unsigned hash() const override;