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#5753

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get_antecedent has to be well-founded. It got broken when using eval during propagation and egraph explain during conflict resolution.
This commit is contained in:
Nikolaj Bjorner 2022-01-15 09:35:25 -08:00
parent d09abdf58e
commit 74824ac901
10 changed files with 53 additions and 4547 deletions
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14
src/sat/smt/q_mam.cpp
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@ -553,8 +553,8 @@ namespace q {
void unmark(unsigned head) {
for (unsigned i = m_candidates.size(); i-- > head; ) {
enode* app = m_candidates[i];
if (app->is_marked1())
app->unmark1();
if (app->is_marked2())
app->unmark2();
}
}
@ -946,9 +946,9 @@ namespace q {
void linearise_core() {
m_aux.reset();
app * first_app = nullptr;
unsigned first_app_reg;
unsigned first_app_sz;
unsigned first_app_num_unbound_vars;
unsigned first_app_reg = 0;
unsigned first_app_sz = 0;
unsigned first_app_num_unbound_vars = 0;
// generate first the non-BIND operations
for (unsigned reg : m_todo) {
expr * p = m_registers[reg];
@ -2022,9 +2022,9 @@ namespace q {
code_tree::scoped_unmark _unmark(t);
while ((app = t->next_candidate()) && !ctx.resource_limits_exceeded()) {
TRACE("trigger_bug", tout << "candidate\n" << ctx.bpp(app) << "\n";);
if (!app->is_marked1() && app->is_cgr()) {
if (!app->is_marked2() && app->is_cgr()) {
execute_core(t, app);
app->mark1();
app->mark2();
}
}
}