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consolidate freeze functionality into dependent_expr_state

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rename size() to qtail() and introduce shortcuts
ensure tactic goals are not updated if they are in inconsistent state (because indices could be invalidated)
This commit is contained in:
Nikolaj Bjorner 2022-11-30 08:35:29 +07:00
parent 73a652cf4b
commit bec3acd146
21 changed files with 223 additions and 93 deletions
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8
src/ast/simplifiers/euf_completion.cpp
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@ -74,13 +74,13 @@ namespace euf {
void completion::add_egraph() {
m_nodes_to_canonize.reset();
unsigned sz = m_fmls.size();
unsigned sz = qtail();
auto add_children = [&](enode* n) {
for (auto* ch : enode_args(n))
m_nodes_to_canonize.push_back(ch);
};
for (unsigned i = m_fmls.qhead(); i < sz; ++i) {
for (unsigned i = qhead(); i < sz; ++i) {
expr* x, * y;
auto [f, d] = m_fmls[i]();
if (m.is_eq(f, x, y)) {
@ -113,8 +113,8 @@ namespace euf {
return;
}
unsigned sz = m_fmls.size();
for (unsigned i = m_fmls.qhead(); i < sz; ++i) {
unsigned sz = qtail();
for (unsigned i = qhead(); i < sz; ++i) {
auto [f, d] = m_fmls[i]();
expr_dependency_ref dep(d, m);