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Code Activity

Polysat: expand conflict explanation rules (#5366)

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* update example to match slides

* Add normalized view of inequalities

* workaround

* Add a conflict explanation rule

* unit clauses should be asserted at the base level

* Add src constraint to interval

* support non-strict case in first rule

* print conflict constraints only once

* update second rule

* update third rule as well
This commit is contained in:
Jakob Rath 2021-06-23 19:12:39 +02:00 • committed by GitHub
parent dec37aee34
commit 20a5baeb70
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10 changed files with 249 additions and 159 deletions
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4
src/math/polysat/explain.h
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@ -33,8 +33,10 @@ namespace polysat {
clause_ref by_ugt_y();
clause_ref by_ugt_z();
clause_ref y_ule_ax_and_x_ule_z();
p_dependency_ref null_dep() const { return m_solver.mk_dep_ref(null_dependency); }
void push_omega_mul(clause_builder& clause, unsigned level, unsigned p, pdd const& x, pdd const& y);
bool push_omega_mul(clause_builder& clause, unsigned level, unsigned p, pdd const& x, pdd const& y);
public:
conflict_explainer(solver& s, constraints_and_clauses const& conflict);