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fix unsoundness in quantifier propagation #6116 and add initial lemma logging

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This commit is contained in:
Nikolaj Bjorner 2022-08-23 19:09:50 -07:00
parent 912b284602
commit ce1f3987d9
15 changed files with 78 additions and 13 deletions
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8
src/sat/smt/q_eval.cpp
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@ -47,21 +47,21 @@ namespace q {
unsigned lim = m_indirect_nodes.size();
lit l = c[i];
lbool cmp = compare(n, binding, l.lhs, l.rhs, evidence);
TRACE("q", tout << l.lhs << " ~~ " << l.rhs << " is " << cmp << "\n";);
switch (cmp) {
case l_false:
case l_false:
m_indirect_nodes.shrink(lim);
if (!l.sign)
break;
c.m_watch = i;
return l_true;
case l_true:
case l_true:
m_indirect_nodes.shrink(lim);
if (l.sign)
break;
break;
c.m_watch = i;
return l_true;
case l_undef:
TRACE("q", tout << l.lhs << " ~~ " << l.rhs << " is undef\n";);
if (idx != UINT_MAX) {
idx = UINT_MAX;
return l_undef;