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add unconstrained elimination for sequences

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This commit is contained in:
Nikolaj Bjorner 2023-03-14 09:23:13 +01:00
parent a0f3727e90
commit d1c7ff1a36
12 changed files with 148 additions and 16 deletions
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5
src/ast/euf/euf_egraph.cpp
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@ -67,6 +67,8 @@ namespace euf {
}
enode_bool_pair egraph::insert_table(enode* p) {
TRACE("euf", tout << bpp(p) << "\n");
//SASSERT(!m_table.contains_ptr(p));
auto rc = m_table.insert(p);
p->m_cg = rc.first;
return rc;
@ -280,6 +282,7 @@ namespace euf {
if (!m.is_bool(n->get_sort()))
return;
if (enable_merge_tf != n->merge_tf()) {
TRACE("euf", tout << "set tf " << enable_merge_tf << " " << bpp(n) << "\n");
n->set_merge_tf(enable_merge_tf);
m_updates.push_back(update_record(n, update_record::toggle_merge_tf()));
}
@ -487,6 +490,7 @@ namespace euf {
}
void egraph::remove_parents(enode* r) {
TRACE("euf", tout << bpp(r) << "\n");
for (enode* p : enode_parents(r)) {
if (p->is_marked1())
continue;
@ -496,6 +500,7 @@ namespace euf {
SASSERT(m_table.contains_ptr(p));
p->mark1();
erase_from_table(p);
CTRACE("euf", m_table.contains_ptr(p), tout << bpp(p) << "\n"; display(tout));
SASSERT(!m_table.contains_ptr(p));
}
else if (p->is_equality())