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fix #7098

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This commit is contained in:
Nikolaj Bjorner 2024-01-30 20:38:01 -08:00
parent 99ebbd6341
commit 50deece29e
2 changed files with 21 additions and 12 deletions
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2
src/smt/smt_context_pp.cpp
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@ -132,7 +132,7 @@ namespace smt {
void context::display_literal_info(std::ostream & out, literal l) const {
smt::display_compact(out, l, m_bool_var2expr.data());
display_literal_smt2(out, l);
display_literal_smt2(out << " " << l << ": ", l);
out << "relevant: " << is_relevant(bool_var2expr(l.var())) << ", val: " << get_assignment(l) << "\n";
}

31
src/smt/theory_pb.cpp
View file

@ -1807,7 +1807,7 @@ namespace smt {
bool theory_pb::resolve_conflict(card& c, literal_vector const& confl) {
TRACE("pb", display(tout, c, true); );
TRACE("pb", display(tout << "resolve conflict\n", c, true); );
bool_var v;
m_conflict_lvl = 0;
@ -1839,8 +1839,19 @@ namespace smt {
literal conseq = ~confl[2];
int bound = 1;
auto clear_marks = [&]() {
while (m_num_marks > 0 && idx > 0) {
v = lits[idx].var();
if (ctx.is_marked(v)) {
ctx.unset_mark(v);
}
--idx;
}
};
while (m_num_marks > 0) {
TRACE("pb", tout << "conseq: " << conseq << "\n");
v = conseq.var();
int offset = get_abs_coeff(v);
@ -1850,13 +1861,7 @@ namespace smt {
}
SASSERT(validate_lemma());
if (offset > 1000) {
while (m_num_marks > 0 && idx > 0) {
v = lits[idx].var();
if (ctx.is_marked(v)) {
ctx.unset_mark(v);
}
--idx;
}
clear_marks();
return false;
}
@ -1884,8 +1889,11 @@ namespace smt {
clause& cls = *js.get_clause();
justification* cjs = cls.get_justification();
unsigned num_lits = cls.get_num_literals();
if (cjs && typeid(smt::unit_resolution_justification) == typeid(*cjs))
;
CTRACE("pb", cjs, tout << (typeid(smt::unit_resolution_justification) == typeid(*cjs)) << "\n");
if (cjs && typeid(smt::unit_resolution_justification) == typeid(*cjs)) {
clear_marks();
return false;
}
else if (cjs && !is_proof_justification(*cjs)) {
TRACE("pb", tout << "not processing justification over: " << conseq << " " << typeid(*cjs).name() << "\n";);
break;
@ -1954,7 +1962,8 @@ namespace smt {
while (true) {
conseq = lits[idx];
v = conseq.var();
if (ctx.is_marked(v)) break;
if (ctx.is_marked(v))
break;
SASSERT(idx > 0);
--idx;
}