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reducing dependencies on simplifier

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-08-22 15:09:34 -07:00
parent a206362cef
commit e2b46257d6
18 changed files with 289 additions and 215 deletions
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20
src/ast/macros/macro_finder.cpp
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@ -48,14 +48,12 @@ bool macro_finder::is_macro(expr * n, app_ref & head, expr_ref & def) {
bool macro_finder::is_arith_macro(expr * n, proof * pr, expr_ref_vector & new_exprs, proof_ref_vector & new_prs) {
if (!is_quantifier(n) || !to_quantifier(n)->is_forall())
return false;
arith_simplifier_plugin * as = get_arith_simp();
arith_util & autil = as->get_arith_util();
expr * body = to_quantifier(n)->get_expr();
unsigned num_decls = to_quantifier(n)->get_num_decls();
if (!autil.is_le(body) && !autil.is_ge(body) && !m_manager.is_eq(body))
if (!m_autil.is_le(body) && !m_autil.is_ge(body) && !m_manager.is_eq(body))
return false;
if (!as->is_add(to_app(body)->get_arg(0)))
if (!m_autil.is_add(to_app(body)->get_arg(0)))
return false;
app_ref head(m_manager);
expr_ref def(m_manager);
@ -66,10 +64,10 @@ bool macro_finder::is_arith_macro(expr * n, proof * pr, expr_ref_vector & new_ex
if (!inv || m_manager.is_eq(body))
new_body = m_manager.mk_app(to_app(body)->get_decl(), head, def);
else if (as->is_le(body))
new_body = autil.mk_ge(head, def);
else if (m_autil.is_le(body))
new_body = m_autil.mk_ge(head, def);
else
new_body = autil.mk_le(head, def);
new_body = m_autil.mk_le(head, def);
quantifier_ref new_q(m_manager);
new_q = m_manager.update_quantifier(to_quantifier(n), new_body);
@ -88,10 +86,9 @@ bool macro_finder::is_arith_macro(expr * n, proof * pr, expr_ref_vector & new_ex
func_decl * k = m_manager.mk_fresh_func_decl(f->get_name(), symbol::null, f->get_arity(), f->get_domain(), f->get_range());
app * k_app = m_manager.mk_app(k, head->get_num_args(), head->get_args());
expr_ref_buffer new_rhs_args(m_manager);
expr_ref new_rhs2(m_manager);
as->mk_add(def, k_app, new_rhs2);
expr_ref new_rhs2(m_autil.mk_add(def, k_app), m_manager);
expr * body1 = m_manager.mk_eq(head, new_rhs2);
expr * body2 = m_manager.mk_app(new_body->get_decl(), k_app, as->mk_numeral(rational(0)));
expr * body2 = m_manager.mk_app(new_body->get_decl(), k_app, m_autil.mk_int(0));
quantifier * q1 = m_manager.update_quantifier(new_q, body1);
expr * patterns[1] = { m_manager.mk_pattern(k_app) };
quantifier * q2 = m_manager.update_quantifier(new_q, 1, patterns, body2);
@ -158,7 +155,8 @@ static void pseudo_predicate_macro2macro(ast_manager & m, app * head, app * t, e
macro_finder::macro_finder(ast_manager & m, macro_manager & mm):
m_manager(m),
m_macro_manager(mm),
m_util(mm.get_util()) {
m_util(mm.get_util()),
m_autil(m) {
}
macro_finder::~macro_finder() {