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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 2021-06-30 21:12:00 -07:00
parent 6eae7d71db
commit 7d5a1acb61
4 changed files with 45 additions and 12 deletions
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16
src/math/dd/dd_fdd.cpp
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@ -121,7 +121,7 @@ namespace dd {
}
bool fdd::sup(bdd const& x, bool_vector& lo) {
bool fdd::sup(bdd const& x, bool_vector& lo) const {
SASSERT(lo.size() == num_bits());
//
// Assumption: common case is that high-order bits are before lower-order bits also
@ -194,7 +194,7 @@ namespace dd {
for (unsigned i = idx; i-- > 0; ) {
SASSERT(!b.is_true());
if (b.is_false()) {
for (unsigned j = 0; j < i; ++j)
for (unsigned j = 0; j <= i; ++j)
lo[j] = false;
break;
}
@ -206,20 +206,16 @@ namespace dd {
}
// subtract one from resulting vector:
for (unsigned i = 0; i < lo.size(); ++i) {
if (lo[i]) {
lo[i] = false;
for (auto& b : lo) {
b = !b;
if (!b)
break;
}
else
lo[i] = true;
}
return true;
}
bool fdd::inf(bdd const& b, bool_vector& hi) {
bool fdd::inf(bdd const& b, bool_vector& hi) const {
SASSERT(hi.size() == num_bits());
return false;
}