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remove last references to unit clauses

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2021-09-20 17:36:07 -07:00
parent cd76fd9edd
commit ce12c51083
5 changed files with 2 additions and 26 deletions
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15
src/math/polysat/solver.cpp
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@ -121,18 +121,9 @@ namespace polysat {
set_conflict(c /*, dep */);
return;
}
#if 0
clause_ref unit = clause::from_unit(c);
m_constraints.store(unit.get(), *this);
c->set_unit_clause(unit.get());
(void) dep; // dependencies go into justification
assign_bool(m_level, lit, c->unit_clause(), nullptr);
#else
// just add them as axioms, tracked by dependencies
m_bvars.assign(lit, m_level, nullptr, nullptr, dep);
m_trail.push_back(trail_instr_t::assign_bool_i);
m_search.push_boolean(lit);
#endif
#if ENABLE_LINEAR_SOLVER
m_linear_solver.new_constraint(*c.get());
@ -743,14 +734,8 @@ namespace polysat {
LOG(" Literal " << lit << " is: " << lit2cnstr(lit));
SASSERT(m_bvars.value(lit) != l_true);
}
if (lemma.empty())
std::cout << lemma << "\n";
SASSERT(!lemma.empty());
m_constraints.store(&lemma, *this);
if (lemma.size() == 1) {
signed_constraint c = lit2cnstr(lemma[0]);
c->set_unit_clause(&lemma);
}
propagate();
}