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find_upper_bound

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This commit is contained in:
Jakob Rath 2021-09-08 18:40:29 +02:00
parent 64ce6cb5c1
commit 18411afda2
3 changed files with 29 additions and 12 deletions
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5
src/math/polysat/saturation.h
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@ -36,6 +36,8 @@ namespace polysat {
};
class inf_saturate : public inference_engine {
bool find_upper_bound(pvar x, signed_constraint& c, rational& bound);
bool push_omega_mul(conflict_core& core, clause_builder& reason, unsigned level, pdd const& x, pdd const& y);
signed_constraint ineq(unsigned level, bool strict, pdd const& lhs, pdd const& rhs);
void push_c(conflict_core& core, signed_constraint const& c, clause_builder& reason);
@ -59,6 +61,9 @@ namespace polysat {
// c := v ~ rhs
bool is_g_v(pvar v, inequality const& c);
// c := x ~ Y
bool is_x_l_Y(pvar x, inequality const& c, pdd& y);
// c := X*y ~ X*Z
bool is_Xy_l_XZ(pvar y, inequality const& c, pdd& x, pdd& z);
bool verify_Xy_l_XZ(pvar y, inequality const& c, pdd const& x, pdd const& z);