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log E-matching based quantifier instantiations as hints

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This commit is contained in:
Nikolaj Bjorner 2022-08-31 18:59:02 -07:00
parent 6077c4154a
commit 3011b34b3b
6 changed files with 45 additions and 2 deletions
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24
src/sat/smt/q_solver.cpp
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@ -363,4 +363,28 @@ namespace q {
ctx.on_instantiation(n, lits, j ? j->m_clause.num_decls() : 0, j ? j->m_binding : nullptr);
}
}
q_proof_hint* q_proof_hint::mk(euf::solver& s, unsigned n, euf::enode* const* bindings) {
auto* mem = s.get_region().allocate(q_proof_hint::get_obj_size(n));
q_proof_hint* ph = new (mem) q_proof_hint();
ph->m_num_bindings = n;
for (unsigned i = 0; i < n; ++i)
ph->m_bindings[i] = bindings[i];
return ph;
}
expr* q_proof_hint::get_hint(euf::solver& s) const {
ast_manager& m = s.get_manager();
expr_ref_vector args(m);
sort_ref_vector sorts(m);
for (unsigned i = 0; i < m_num_bindings; ++i) {
args.push_back(m_bindings[i]->get_expr());
sorts.push_back(args.back()->get_sort());
}
sort* range = m.mk_proof_sort();
func_decl* d = m.mk_func_decl(symbol("inst"), args.size(), sorts.data(), range);
expr* r = m.mk_app(d, args);
return r;
}
}