mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2026-05-04 17:35:17 +00:00
Code Activity

#5336

Browse source
This commit is contained in:
Nikolaj Bjorner 2021-06-17 13:18:19 -07:00
parent f7d1cce69a
commit 4a0a678e3f
4 changed files with 41 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

20
src/sat/smt/q_ematch.cpp
View file

@ -192,20 +192,26 @@ namespace q {
}
struct ematch::remove_binding : public trail {
euf::solver& ctx;
clause& c;
binding* b;
remove_binding(clause& c, binding* b): c(c), b(b) {}
void undo() override {
remove_binding(euf::solver& ctx, clause& c, binding* b): ctx(ctx), c(c), b(b) {}
void undo() override {
SASSERT(binding::contains(c.m_bindings, b));
binding::remove_from(c.m_bindings, b);
binding::detach(b);
}
};
struct ematch::insert_binding : public trail {
euf::solver& ctx;
clause& c;
binding* b;
insert_binding(clause& c, binding* b): c(c), b(b) {}
void undo() override {
insert_binding(euf::solver& ctx, clause& c, binding* b): ctx(ctx), c(c), b(b) {}
void undo() override {
SASSERT(!c.m_bindings || c.m_bindings->invariant());
binding::push_to_front(c.m_bindings, b);
SASSERT(!c.m_bindings || c.m_bindings->invariant());
}
};
@ -230,7 +236,7 @@ namespace q {
for (unsigned i = 0; i < n; ++i)
b->m_nodes[i] = _binding[i];
binding::push_to_front(c.m_bindings, b);
ctx.push(remove_binding(c, b));
ctx.push(remove_binding(ctx, c, b));
}
void ematch::on_binding(quantifier* q, app* pat, euf::enode* const* _binding, unsigned max_generation, unsigned min_gen, unsigned max_gen) {
@ -503,8 +509,10 @@ namespace q {
while (b != c.m_bindings);
for (auto* b : to_remove) {
SASSERT(binding::contains(c.m_bindings, b));
binding::remove_from(c.m_bindings, b);
ctx.push(insert_binding(c, b));
binding::detach(b);
ctx.push(insert_binding(ctx, c, b));
}
to_remove.reset();
}