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add an option to register callback on quantifier instantiation

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Suppose a user propagator encodes axioms using quantifiers and uses E-matching for instantiation. If it wants to implement a custom priority scheme or drop some instances based on internal checks it can register a callback with quantifier instantiation
This commit is contained in:
Nikolaj Bjorner 2025-08-06 21:11:38 -07:00
parent d4a4dd6cc7
commit b33f444545
24 changed files with 126 additions and 3 deletions
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5
src/smt/qi_queue.h
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@ -28,6 +28,7 @@ Revision History:
#include "params/qi_params.h"
#include "ast/cost_evaluator.h"
#include "util/statistics.h"
#include "tactic/user_propagator_base.h"
namespace smt {
class context;
@ -52,6 +53,7 @@ namespace smt {
cached_var_subst m_subst;
svector<float> m_vals;
double m_eager_cost_threshold = 0;
std::function<bool(quantifier*,expr*)> m_on_binding;
struct entry {
fingerprint * m_qb;
float m_cost;
@ -95,6 +97,9 @@ namespace smt {
void reset();
void display_delayed_instances_stats(std::ostream & out) const;
void collect_statistics(::statistics & st) const;
void register_on_binding(std::function<bool(quantifier* q, expr* e)> & on_binding) {
m_on_binding = on_binding;
}
};
};