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Polysat: constraint refactor cont'd, deduplicate constraints (#5520)

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* Assign boolean variables only to long-lived constraints, and deduplicate constraints when they are created

* scoped_signed_constraint

* update other classes

* fix

* Don't use scoped_ptr<constraint> with dedup()
This commit is contained in:
Jakob Rath 2021-08-30 19:00:27 +02:00 • committed by GitHub
parent ebaea2159e
commit 0c1e44da77
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16 changed files with 365 additions and 298 deletions
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5
src/math/polysat/clause_builder.h
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@ -23,10 +23,11 @@ Notes:
namespace polysat {
// TODO: this is now incorporated in conflict_core
class clause_builder {
solver& m_solver;
sat::literal_vector m_literals;
constraint_ref_vector m_new_constraints;
scoped_ptr_vector<constraint> m_new_constraints;
p_dependency_ref m_dep;
unsigned m_level = 0;
@ -46,7 +47,7 @@ namespace polysat {
void push_literal(sat::literal lit);
/// Add a constraint to the clause that does not yet exist in the solver so far.
void push_new_constraint(constraint_literal_ref c);
void push_new_constraint(scoped_signed_constraint c);
};
}