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Added has_fp_to_real probe to detect when QF_FP need QF_NRA.

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This commit is contained in:
Christoph M. Wintersteiger 2015-05-29 14:49:53 +01:00
parent d35ebd6e57
commit ba88648468
1 changed files with 37 additions and 1 deletions
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38
src/tactic/fpa/qffp_tactic.cpp
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@ -28,6 +28,42 @@ Notes:
#include"qffp_tactic.h"
struct has_fp_to_real_predicate {
struct found {};
ast_manager & m;
bv_util bu;
fpa_util fu;
arith_util au;
has_fp_to_real_predicate(ast_manager & _m) : m(_m), bu(m), fu(m), au(m) {}
void operator()(var *) { throw found(); }
void operator()(quantifier *) { throw found(); }
void operator()(app * n) {
sort * s = get_sort(n);
if (au.is_real(s) && n->get_family_id() == fu.get_family_id() &&
is_app(n) && to_app(n)->get_kind() == OP_FPA_TO_REAL)
throw found();
}
};
class has_fp_to_real_probe : public probe {
public:
virtual result operator()(goal const & g) {
return !test<has_fp_to_real_predicate>(g);
}
virtual ~has_fp_to_real_probe() {}
};
probe * mk_has_fp_to_real_probe() {
return alloc(has_fp_to_real_probe);
}
tactic * mk_qffp_tactic(ast_manager & m, params_ref const & p) {
params_ref simp_p = p;
simp_p.set_bool("arith_lhs", true);
@ -45,7 +81,7 @@ tactic * mk_qffp_tactic(ast_manager & m, params_ref const & p) {
using_params(mk_simplify_tactic(m, p), simp_p),
cond(mk_is_propositional_probe(),
mk_sat_tactic(m, p),
cond(mk_is_qfnra_probe(),
cond(mk_has_fp_to_real_probe(),
mk_qfnra_tactic(m, p),
mk_smt_tactic(p))
),