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Refactor mk_th_lemma

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This commit is contained in:
Arie Gurfinkel 2018-06-20 21:15:13 -04:00
parent 915983821b
commit fcfa6baeca
1 changed files with 19 additions and 14 deletions
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33
src/muz/spacer/spacer_proof_utils.cpp
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@ -71,6 +71,21 @@ void theory_axiom_reducer::reset() {
m_pinned.reset(); m_pinned.reset();
} }
static proof* mk_th_lemma(ast_manager &m, ptr_buffer<proof> const &parents,
unsigned num_params, parameter const *params) {
buffer<parameter> v;
for (unsigned i = 1; i < num_params; ++i)
v.push_back(params[i]);
SASSERT(params[0].is_symbol());
family_id tid = m.mk_family_id(params[0].get_symbol());
SASSERT(tid != null_family_id);
return m.mk_th_lemma(tid, m.mk_false(),
parents.size(), parents.c_ptr(),
num_params-1, v.c_ptr());
}
// -- rewrite theory axioms into theory lemmas // -- rewrite theory axioms into theory lemmas
proof_ref theory_axiom_reducer::reduce(proof* pr) { proof_ref theory_axiom_reducer::reduce(proof* pr) {
proof_post_order pit(pr, m); proof_post_order pit(pr, m);
@ -108,20 +123,10 @@ proof_ref theory_axiom_reducer::reduce(proof* pr) {
hyps.push_back(hyp); hyps.push_back(hyp);
} }
// (b) create farkas lemma. Rebuild parameters since // (b) Create a theory lemma
// mk_th_lemma() adds tid as first parameter proof *th_lemma;
unsigned num_params = p->get_decl()->get_num_parameters(); func_decl *d = p->get_decl();
parameter const* params = p->get_decl()->get_parameters(); th_lemma = mk_th_lemma(m, hyps, d->get_num_parameters(), d->get_parameters());
vector<parameter> parameters;
for (unsigned i = 1; i < num_params; ++i) parameters.push_back(params[i]);
SASSERT(params[0].is_symbol());
family_id tid = m.mk_family_id(params[0].get_symbol());
SASSERT(tid != null_family_id);
proof* th_lemma = m.mk_th_lemma(tid, m.mk_false(),
hyps.size(), hyps.c_ptr(),
num_params-1, parameters.c_ptr());
m_pinned.push_back(th_lemma); m_pinned.push_back(th_lemma);
SASSERT(is_arith_lemma(m, th_lemma)); SASSERT(is_arith_lemma(m, th_lemma));