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prepare for lambda unfolding in ho-matcher and selectively enable ho matching

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2026-05-22 13:24:19 -07:00
parent f40e4759e4
commit 19166bd0b5
7 changed files with 75 additions and 5 deletions
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4
src/ast/pattern/pattern_inference.cpp
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@ -546,13 +546,13 @@ void pattern_inference_cfg::reset_pre_patterns() {
bool pattern_inference_cfg::is_forbidden(app * n) const {
func_decl const * decl = n->get_decl();
func_decl * decl = n->get_decl();
if (is_ground(n))
return false;
// Remark: skolem constants should not be used in patterns, since they do not
// occur outside of the quantifier. That is, Z3 will never match this kind of
// pattern.
if (m_params.m_pi_avoid_skolems && decl->is_skolem()) {
if (m_params.m_pi_avoid_skolems && decl->is_skolem() && !m.is_lambda_def(decl)) {
CTRACE(pattern_inference_skolem, decl->is_skolem(), tout << "ignoring: " << mk_pp(n, m) << "\n";);
return true;
}