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Simplify equations into canonical form

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Also simplify constraints that are always false due to parity
This commit is contained in:
Jakob Rath 2022-09-28 13:17:14 +02:00
parent 480ba01cb0
commit 6715058876
4 changed files with 105 additions and 69 deletions
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5
src/math/polysat/constraint.h
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@ -106,8 +106,8 @@ namespace polysat {
signed_constraint lshr(pdd const& p, pdd const& q, pdd const& r);
signed_constraint band(pdd const& p, pdd const& q, pdd const& r);
constraint *const* begin() const { return m_constraints.data(); }
constraint *const* end() const { return m_constraints.data() + m_constraints.size(); }
constraint* const* begin() const { return m_constraints.data(); }
constraint* const* end() const { return m_constraints.data() + m_constraints.size(); }
using clause_iterator = decltype(m_clauses)::const_iterator;
clause_iterator clauses_begin() const { return m_clauses.begin(); }
@ -167,7 +167,6 @@ namespace polysat {
bool operator!=(constraint const& other) const { return !operator==(other); }
virtual bool is_eq() const { return false; }
virtual bool is_diseq() const { return false; }
bool is_ule() const { return m_kind == ckind_t::ule_t; }
bool is_umul_ovfl() const { return m_kind == ckind_t::umul_ovfl_t; }
bool is_smul_fl() const { return m_kind == ckind_t::smul_fl_t; }