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#5336

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This commit is contained in:
Nikolaj Bjorner 2021-06-16 21:24:50 -05:00
parent df9084ba23
commit 1dedfe3164
4 changed files with 18 additions and 7 deletions
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16
src/sat/smt/q_ematch.cpp
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@ -213,6 +213,14 @@ namespace q {
unsigned sz = sizeof(binding) + sizeof(euf::enode* const*)*n;
void* mem = ctx.get_region().allocate(sz);
return new (mem) binding(pat, max_generation, min_top, max_top);
}
euf::enode* const* ematch::alloc_binding(clause& c, euf::enode* const* _binding) {
unsigned sz = sizeof(euf::enode* const*) * c.num_decls();
euf::enode** binding = (euf::enode**)ctx.get_region().allocate(sz);
for (unsigned i = 0; i < c.num_decls(); ++i)
binding[i] = _binding[i];
return binding;
}
void ematch::add_binding(clause& c, app* pat, euf::enode* const* _binding, unsigned max_generation, unsigned min_top, unsigned max_top) {
@ -230,11 +238,11 @@ namespace q {
unsigned idx = m_q2clauses[q];
clause& c = *m_clauses[idx];
bool new_propagation = false;
if (!propagate(_binding, max_generation, c, new_propagation))
if (!propagate(false, _binding, max_generation, c, new_propagation))
add_binding(c, pat, _binding, max_generation, min_gen, max_gen);
}
bool ematch::propagate(euf::enode* const* binding, unsigned max_generation, clause& c, bool& propagated) {
bool ematch::propagate(bool is_owned, euf::enode* const* binding, unsigned max_generation, clause& c, bool& propagated) {
TRACE("q", c.display(ctx, tout) << "\n";);
unsigned idx = UINT_MAX;
lbool ev = m_eval(binding, c, idx);
@ -252,6 +260,8 @@ namespace q {
}
if (ev == l_undef && max_generation > m_generation_propagation_threshold)
return false;
if (!is_owned)
binding = alloc_binding(c, binding);
auto j_idx = mk_justification(idx, c, binding);
if (ev == l_false) {
++m_stats.m_num_conflicts;
@ -482,7 +492,7 @@ namespace q {
continue;
do {
if (propagate(b->m_nodes, b->m_max_generation, c, propagated))
if (propagate(true, b->m_nodes, b->m_max_generation, c, propagated))
to_remove.push_back(b);
else if (flush) {
instantiate(*b, c);