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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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6
src/ast/simplifiers/elim_unconstrained.cpp
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@ -73,7 +73,7 @@ void elim_unconstrained::eliminate() {
node& n = get_node(v);
if (n.m_refcount == 0)
continue;
if (n.m_refcount > 1)
if (n.m_refcount > 1)
return;
if (n.m_parents.empty()) {
@ -90,10 +90,10 @@ void elim_unconstrained::eliminate() {
unsigned sz = m_args.size();
for (expr* arg : *to_app(t))
m_args.push_back(reconstruct_term(get_node(arg)));
bool inverted = m_inverter(t->get_decl(), to_app(t)->get_num_args(), m_args.data() + sz, r);
bool inverted = m_inverter(t->get_decl(), t->get_num_args(), m_args.data() + sz, r);
proof_ref pr(m);
if (inverted && m_enable_proofs) {
expr * s = m.mk_app(t->get_decl(), to_app(t)->get_num_args(), m_args.data() + sz);
expr * s = m.mk_app(t->get_decl(), t->get_num_args(), m_args.data() + sz);
expr * eq = m.mk_eq(s, r);
proof * pr1 = m.mk_def_intro(eq);
proof * pr = m.mk_apply_def(s, r, pr1);