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Fix for FP UFs and conversion functions.

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This commit is contained in:
Christoph M. Wintersteiger 2015-10-08 16:04:17 +01:00
parent 883514c195
commit a951ff0769
2 changed files with 40 additions and 34 deletions
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48
src/ast/fpa/fpa2bv_rewriter.h
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@ -79,34 +79,14 @@ struct fpa2bv_rewriter_cfg : public default_rewriter_cfg {
br_status reduce_app(func_decl * f, unsigned num, expr * const * args, expr_ref & result, proof_ref & result_pr) {
TRACE("fpa2bv_rw", tout << "APP: " << f->get_name() << std::endl; );
if (f->get_family_id() == null_family_id) {
if (num == 0) {
if (m_conv.is_float(f->get_range())) {
m_conv.mk_const(f, result);
return BR_DONE;
}
else if (m_conv.is_rm(f->get_range())) {
m_conv.mk_rm_const(f, result);
return BR_DONE;
}
else
return BR_FAILED;
}
else {
bool is_float_uf = m_conv.is_float(f->get_range()) || m_conv.is_rm(f->get_range());
if (num == 0 && f->get_family_id() == null_family_id && m_conv.is_float(f->get_range())) {
m_conv.mk_const(f, result);
return BR_DONE;
}
for (unsigned i = 0; i < f->get_arity(); i++) {
sort * di = f->get_domain()[i];
is_float_uf |= m_conv.is_float(di) || m_conv.is_rm(di);
}
if (is_float_uf) {
m_conv.mk_uninterpreted_function(f, num, args, result);
return BR_DONE;
}
else
return BR_FAILED;
}
if (num == 0 && f->get_family_id() == null_family_id && m_conv.is_rm(f->get_range())) {
m_conv.mk_rm_const(f, result);
return BR_DONE;
}
if (m().is_eq(f)) {
@ -199,6 +179,20 @@ struct fpa2bv_rewriter_cfg : public default_rewriter_cfg {
NOT_IMPLEMENTED_YET();
}
}
else {
SASSERT(!m_conv.is_float_family(f));
bool is_float_uf = m_conv.is_float(f->get_range()) || m_conv.is_rm(f->get_range());
for (unsigned i = 0; i < f->get_arity(); i++) {
sort * di = f->get_domain()[i];
is_float_uf |= m_conv.is_float(di) || m_conv.is_rm(di);
}
if (is_float_uf) {
m_conv.mk_uninterpreted_function(f, num, args, result);
return BR_DONE;
}
}
return BR_FAILED;
}

16
src/smt/theory_fpa.cpp
View file

@ -332,7 +332,20 @@ namespace smt {
m_rw(e, e_conv);
if (is_app(e_conv) && to_app(e_conv)->get_family_id() != get_family_id()) {
m_th_rw(e_conv, res);
if (!m_fpa_util.is_float(e_conv))
m_th_rw(e_conv, res);
else {
expr_ref bv(m);
bv = wrap(e_conv);
unsigned bv_sz = m_bv_util.get_bv_size(bv);
unsigned ebits = m_fpa_util.get_ebits(m.get_sort(e_conv));
unsigned sbits = m_fpa_util.get_sbits(m.get_sort(e_conv));
SASSERT(bv_sz == ebits + sbits);
m_converter.mk_fp(m_bv_util.mk_extract(bv_sz - 1, bv_sz - 1, bv),
m_bv_util.mk_extract(bv_sz - 2, sbits - 1, bv),
m_bv_util.mk_extract(sbits - 2, 0, bv),
res);
}
}
else if (m_fpa_util.is_rm(e)) {
SASSERT(is_sort_of(m.get_sort(e_conv), m_bv_util.get_family_id(), BV_SORT));
@ -644,7 +657,6 @@ namespace smt {
xc = convert(xe);
yc = convert(ye);
TRACE("t_fpa_detail", tout << "xc = " << mk_ismt2_pp(xc, m) << std::endl <<
"yc = " << mk_ismt2_pp(yc, m) << std::endl;);