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move closure conversion to solver internalization

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- only the internalizer performs closure conversion
- theory_array treats propagation of lambdas similar to stores
- ho_matcher treats top-level flex patterns as first-order
- pattern-inference fix to handle quantifiers (lambdas) in patterns that are computed
This commit is contained in:
Nikolaj Bjorner 2026-05-30 18:41:37 -07:00
parent 2cc4422018
commit dbe986fdf7
10 changed files with 97 additions and 87 deletions
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17
src/smt/smt_internalizer.cpp
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@ -598,19 +598,7 @@ namespace smt {
if (e_internalized(q))
return;
app_ref lam_name(m.mk_fresh_const("lambda", q->get_sort()), m);
app_ref eq(m), lam_app(m);
expr_ref_vector vars(m);
vars.push_back(lam_name);
unsigned sz = q->get_num_decls();
for (unsigned i = 0; i < sz; ++i)
vars.push_back(m.mk_var(sz - i - 1, q->get_decl_sort(i)));
array_util autil(m);
lam_app = autil.mk_select(vars.size(), vars.data());
eq = m.mk_eq(lam_app, q->get_expr());
quantifier_ref fa(m);
expr * patterns[1] = { m.mk_pattern(lam_app) };
fa = m.mk_forall(sz, q->get_decl_sorts(), q->get_decl_names(), eq, 0, m.lambda_def_qid(), symbol::null, 1, patterns);
internalize_quantifier(fa, true);
m.add_lambda_def(lam_name->get_decl(), q);
if (!e_internalized(lam_name))
internalize_uninterpreted(lam_name);
enode* lam_node = get_enode(lam_name);
@ -619,9 +607,6 @@ namespace smt {
m_app2enode.setx(q->get_id(), lam_node, nullptr);
m_l_internalized_stack.push_back(q);
m_trail_stack.push_ptr(&m_mk_lambda_trail);
bool_var bv = get_bool_var(fa);
assign(literal(bv, false), nullptr);
mark_as_relevant(bv);
}
bool context::has_lambda() {