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test sup

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2021-07-01 10:33:25 -07:00
parent 5edc939b85
commit 05bcf0bed7
2 changed files with 45 additions and 12 deletions
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17
src/math/dd/dd_fdd.cpp
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@ -215,10 +215,9 @@ namespace dd {
}
SASSERT(!lo[idx]);
trail.reverse();
lo[idx] = true;
unsigned v = m_pos2var[idx];
b = trail[idx].cofactor(m->mk_var(v));
b = trail[lo.size() - idx - 1].cofactor(m->mk_var(v));
for (unsigned i = idx; i-- > 0; ) {
SASSERT(!b.is_true());
if (b.is_false()) {
@ -235,7 +234,7 @@ namespace dd {
dec(lo);
return true;
return true;
}
bool fdd::inf(bdd const& x, bool_vector& hi) const {
@ -279,12 +278,10 @@ namespace dd {
}
SASSERT(hi[idx]);
trail.reverse();
hi[idx] = false;
unsigned v = m_pos2var[idx];
b = trail[idx].cofactor(m->mk_nvar(v));
b = trail[hi.size() - idx - 1].cofactor(m->mk_nvar(v));
// Check logic, TBD
for (unsigned i = idx; i-- > 0; ) {
SASSERT(!b.is_true());
if (b.is_false()) {
@ -292,11 +289,11 @@ namespace dd {
hi[j] = true;
break;
}
hi[i] = b.lo().is_true();
if (hi[i])
b = b.hi();
else
hi[i] = !b.hi().is_true();
if (!hi[i])
b = b.lo();
else
b = b.hi();
}
inc(hi);