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fix seg-fault from #1244

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-09-05 07:35:37 -07:00
parent 799fb4a0d1
commit a4cf2726fd
3 changed files with 9 additions and 8 deletions
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12
src/smt/smt_conflict_resolution.cpp
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@ -348,10 +348,8 @@ namespace smt {
literal_vector & antecedents = m_tmp_literal_vector;
antecedents.reset();
justification2literals_core(js, antecedents);
literal_vector::iterator it = antecedents.begin();
literal_vector::iterator end = antecedents.end();
for(; it != end; ++it)
process_antecedent(*it, num_marks);
for (literal l : antecedents)
process_antecedent(l, num_marks);
}
/**
@ -517,11 +515,13 @@ namespace smt {
}
TRACE("conflict", tout << "processing consequent: "; m_ctx.display_literal_verbose(tout, consequent); tout << "\n";
tout << "num_marks: " << num_marks << ", js kind: " << js.get_kind() << "\n";);
tout << "num_marks: " << num_marks << ", js kind: " << js.get_kind() << " level: " << m_ctx.get_assign_level(consequent) << "\n";
);
SASSERT(js != null_b_justification);
switch (js.get_kind()) {
case b_justification::CLAUSE: {
clause * cls = js.get_clause();
TRACE("conflict", m_ctx.display_clause_detail(tout, cls););
if (cls->is_lemma())
cls->inc_clause_activity();
unsigned num_lits = cls->get_num_literals();
@ -566,7 +566,7 @@ namespace smt {
if (m_ctx.is_marked(l.var()))
break;
CTRACE("conflict", m_ctx.get_assign_level(l) != m_conflict_lvl && m_ctx.get_assign_level(l) != m_ctx.get_base_level(),
tout << "assign_level(l): " << m_ctx.get_assign_level(l) << ", conflict_lvl: " << m_conflict_lvl << ", l: "; m_ctx.display_literal(tout, l);
tout << "assign_level(l): " << m_ctx.get_assign_level(l) << ", conflict_lvl: " << m_conflict_lvl << ", l: "; m_ctx.display_literal_verbose(tout, l);
tout << "\n";);
SASSERT(m_ctx.get_assign_level(l) == m_conflict_lvl ||
// it may also be an (out-of-order) asserted literal