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try adding unit propagation / distinguish these in saturation

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2022-12-04 14:22:34 -08:00
parent 066b7d2d71
commit 1d440ac871
3 changed files with 76 additions and 81 deletions
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8
src/math/polysat/saturation.h
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@ -30,8 +30,10 @@ namespace polysat {
bool is_non_overflow(pdd const& x, pdd const& y, signed_constraint& c);
signed_constraint ineq(bool strict, pdd const& lhs, pdd const& rhs);
bool propagate(conflict& core, inequality const& crit1, inequality const& crit2, signed_constraint c);
bool propagate(conflict& core, inequality const& crit1, inequality const& crit2, bool strict, pdd const& lhs, pdd const& rhs);
bool propagate(conflict& core, inequality const& crit1, signed_constraint c);
bool add_conflict(conflict& core, inequality const& crit1, signed_constraint c);
bool add_conflict(conflict& core, inequality const& crit1, inequality const& crit2, signed_constraint c);
bool try_ugt_x(pvar v, conflict& core, inequality const& c);
@ -103,7 +105,7 @@ namespace polysat {
bool is_forced_false(signed_constraint const& sc);
bool is_forced_odd(pdd const& p);
bool is_forced_true(signed_constraint const& sc);
public:
saturation(solver& s);