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theory_fpa refactoring

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This commit is contained in:
Christoph M. Wintersteiger 2016-05-31 16:22:24 +01:00
parent 03f6b465b9
commit 302c491535
2 changed files with 36 additions and 41 deletions
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76
src/smt/theory_fpa.cpp
View file

@ -35,6 +35,7 @@ namespace smt {
virtual void undo(theory_fpa & th) {
expr * val = m_map.find(key);
m_map.remove(key);
m.dec_ref(key);
m.dec_ref(val);
key = 0;
}
@ -125,18 +126,17 @@ namespace smt {
if (m_is_initialized) {
ast_manager & m = get_manager();
dec_ref_map_values(m, m_conversions);
dec_ref_map_values(m, m_wraps);
dec_ref_collection_values(m, m_is_added_to_model);
}
else {
SASSERT(m_trail_stack.get_num_scopes() == 0);
SASSERT(m_conversions.empty());
SASSERT(m_wraps.empty());
SASSERT(m_is_added_to_model.empty());
}
dec_ref_map_key_values(m, m_conversions);
dec_ref_collection_values(m, m_is_added_to_model);
m_is_initialized = false;
m_converter.reset();
m_rw.reset();
m_th_rw.reset();
}
SASSERT(m_trail_stack.get_num_scopes() == 0);
SASSERT(m_conversions.empty());
SASSERT(m_is_added_to_model.empty());
}
void theory_fpa::init(context * ctx) {
@ -261,28 +261,21 @@ namespace smt {
m_th_rw((expr_ref&)res);
}
else {
sort * e_srt = m.get_sort(e);
func_decl * w;
sort * es = m.get_sort(e);
if (!m_wraps.find(e_srt, w)) {
SASSERT(!m_wraps.contains(e_srt));
sort * bv_srt;
if (m_converter.is_rm(e_srt))
bv_srt = m_bv_util.mk_sort(3);
else {
SASSERT(m_converter.is_float(e_srt));
unsigned ebits = m_fpa_util.get_ebits(e_srt);
unsigned sbits = m_fpa_util.get_sbits(e_srt);
bv_srt = m_bv_util.mk_sort(ebits + sbits);
}
w = m.mk_func_decl(get_family_id(), OP_FPA_INTERNAL_BVWRAP, 0, 0, 1, &e_srt, bv_srt);
m_wraps.insert(e_srt, w);
m.inc_ref(w);
sort_ref bv_srt(m);
if (m_converter.is_rm(es))
bv_srt = m_bv_util.mk_sort(3);
else {
SASSERT(m_converter.is_float(es));
unsigned ebits = m_fpa_util.get_ebits(es);
unsigned sbits = m_fpa_util.get_sbits(es);
bv_srt = m_bv_util.mk_sort(ebits + sbits);
}
res = m.mk_app(w, e);
func_decl_ref wrap_fd(m);
wrap_fd = m.mk_func_decl(get_family_id(), OP_FPA_INTERNAL_BVWRAP, 0, 0, 1, &es, bv_srt);
res = m.mk_app(wrap_fd, e);
}
return res;
@ -398,6 +391,7 @@ namespace smt {
mk_ismt2_pp(res, m) << std::endl;);
m_conversions.insert(e, res);
m.inc_ref(e);
m.inc_ref(res);
m_trail_stack.push(fpa2bv_conversion_trail_elem(m, m_conversions, e));
}
@ -422,7 +416,6 @@ namespace smt {
res = m.mk_and(res, t);
}
m_converter.m_extra_assertions.reset();
m_th_rw(res);
CTRACE("t_fpa", !m.is_true(res), tout << "side condition: " << mk_ismt2_pp(res, m) << std::endl;);
@ -678,19 +671,23 @@ namespace smt {
mpf_rounding_mode rm;
scoped_mpf val(mpfm);
if (m_fpa_util.is_rm_numeral(n, rm)) {
c = m.mk_eq(wrapped, m_bv_util.mk_numeral(rm, 3));
expr_ref rm_num(m);
rm_num = m_bv_util.mk_numeral(rm, 3);
c = m.mk_eq(wrapped, rm_num);
assert_cnstr(c);
}
else if (m_fpa_util.is_numeral(n, val)) {
expr_ref bv_val_e(m);
expr_ref bv_val_e(m), cc_args(m);
bv_val_e = convert(n);
SASSERT(is_app(bv_val_e));
SASSERT(to_app(bv_val_e)->get_num_args() == 3);
app_ref bv_val_a(to_app(bv_val_e.get()), m);
app_ref bv_val_a(m);
bv_val_a = to_app(bv_val_e.get());
expr * args[] = { bv_val_a->get_arg(0), bv_val_a->get_arg(1), bv_val_a->get_arg(2) };
c = m.mk_eq(wrapped, m_bv_util.mk_concat(3, args));
c = m.mk_and(c, mk_side_conditions());
cc_args = m_bv_util.mk_concat(3, args);
c = m.mk_eq(wrapped, cc_args);
assert_cnstr(c);
assert_cnstr(mk_side_conditions());
}
else {
expr_ref wu(m);
@ -714,11 +711,10 @@ namespace smt {
m_converter.reset();
m_rw.reset();
m_th_rw.reset();
m_trail_stack.pop_scope(m_trail_stack.get_num_scopes());
if (m_factory) dealloc(m_factory); m_factory = 0;
m_trail_stack.pop_scope(m_trail_stack.get_num_scopes());
ast_manager & m = get_manager();
dec_ref_map_values(m, m_conversions);
dec_ref_map_values(m, m_wraps);
dec_ref_map_key_values(m, m_conversions);
dec_ref_collection_values(m, m_is_added_to_model);
theory::reset_eh();
}

1
src/smt/theory_fpa.h
View file

@ -144,7 +144,6 @@ namespace smt {
fpa_util & m_fpa_util;
bv_util & m_bv_util;
arith_util & m_arith_util;
obj_map<sort, func_decl*> m_wraps;
obj_map<expr, expr*> m_conversions;
bool m_is_initialized;
obj_hashtable<func_decl> m_is_added_to_model;