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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/tactic/user_propagator_base.h
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@ -28,6 +28,7 @@ namespace user_propagator {
typedef std::function<void(void*, callback*, expr*)> created_eh_t;
typedef std::function<void(void*, callback*, expr*, unsigned, bool)> decide_eh_t;
typedef std::function<void(void*, expr*, unsigned, unsigned const*, unsigned, expr* const*)> on_clause_eh_t;
typedef std::function<bool(void*, callback*, expr*, expr*)> binding_eh_t;
class plugin : public decl_plugin {
public:
@ -92,6 +93,10 @@ namespace user_propagator {
throw default_exception("user-propagators are only supported on the SMT solver");
}
virtual void user_propagate_register_on_binding(binding_eh_t& r) {
throw default_exception("user-propagators are only supported on the SMT solver");
}
virtual void user_propagate_clear() {
}