mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-04-30 04:15:51 +00:00
Code Activity

Cleaned up hacky rewriter cancelation fix in theory_fpa.

Browse source
This commit is contained in:
Christoph M. Wintersteiger 2016-11-17 16:36:39 +00:00
parent 1600823435
commit b138a0f6d3
1 changed files with 26 additions and 92 deletions
Download patch file Download diff file Expand all files Collapse all files

118
src/smt/theory_fpa.cpp
View file

@ -238,14 +238,7 @@ namespace smt {
if (m_fpa_util.is_fp(e)) {
expr * cargs[3] = { to_app(e)->get_arg(0), to_app(e)->get_arg(1), to_app(e)->get_arg(2) };
res = m_bv_util.mk_concat(3, cargs);
try {
m_th_rw((expr_ref&)res);
}
catch (rewriter_exception &) {
m_th_rw.reset();
throw;
}
m_th_rw((expr_ref&)res);
}
else {
sort * es = m.get_sort(e);
@ -302,15 +295,8 @@ namespace smt {
TRACE("t_fpa_detail", tout << "converting atom: " << mk_ismt2_pp(e, get_manager()) << std::endl;);
expr_ref res(m);
proof_ref pr(m);
try {
m_rw(e, res);
m_th_rw(res, res);
}
catch (rewriter_exception &) {
m_rw.reset();
m_th_rw.reset();
throw;
}
m_rw(e, res);
m_th_rw(res, res);
SASSERT(is_app(res));
SASSERT(m.is_bool(res));
return res;
@ -323,41 +309,28 @@ namespace smt {
expr_ref e_conv(m), res(m);
proof_ref pr(m);
try {
m_rw(e, e_conv);
}
catch (rewriter_exception &) {
m_rw.reset();
throw;
}
m_rw(e, e_conv);
TRACE("t_fpa_detail", tout << "term: " << mk_ismt2_pp(e, get_manager()) << std::endl;
tout << "converted term: " << mk_ismt2_pp(e_conv, get_manager()) << std::endl;);
try {
if (m_fpa_util.is_rm(e)) {
SASSERT(m_fpa_util.is_bv2rm(e_conv));
expr_ref bv_rm(m);
m_th_rw(to_app(e_conv)->get_arg(0), bv_rm);
res = m_fpa_util.mk_bv2rm(bv_rm);
}
else if (m_fpa_util.is_float(e)) {
SASSERT(m_fpa_util.is_fp(e_conv));
expr_ref sgn(m), sig(m), exp(m);
m_converter.split_fp(e_conv, sgn, exp, sig);
m_th_rw(sgn);
m_th_rw(exp);
m_th_rw(sig);
res = m_fpa_util.mk_fp(sgn, exp, sig);
}
else
UNREACHABLE();
if (m_fpa_util.is_rm(e)) {
SASSERT(m_fpa_util.is_bv2rm(e_conv));
expr_ref bv_rm(m);
m_th_rw(to_app(e_conv)->get_arg(0), bv_rm);
res = m_fpa_util.mk_bv2rm(bv_rm);
}
catch (rewriter_exception &)
{
m_th_rw.reset();
throw;
else if (m_fpa_util.is_float(e)) {
SASSERT(m_fpa_util.is_fp(e_conv));
expr_ref sgn(m), sig(m), exp(m);
m_converter.split_fp(e_conv, sgn, exp, sig);
m_th_rw(sgn);
m_th_rw(exp);
m_th_rw(sig);
res = m_fpa_util.mk_fp(sgn, exp, sig);
}
else
UNREACHABLE();
return res;
}
@ -366,15 +339,8 @@ namespace smt {
SASSERT(to_app(e)->get_family_id() == get_family_id());
/* This is for the conversion functions fp.to_* */
expr_ref res(get_manager());
try {
m_rw(e, res);
m_th_rw(res, res);
}
catch (rewriter_exception &) {
m_rw.reset();
m_th_rw.reset();
throw;
}
m_rw(e, res);
m_th_rw(res, res);
return res;
}
@ -432,13 +398,7 @@ namespace smt {
}
m_converter.m_extra_assertions.reset();
try {
m_th_rw(res);
}
catch (rewriter_exception &) {
m_th_rw.reset();
throw;
}
m_th_rw(res);
CTRACE("t_fpa", !m.is_true(res), tout << "side condition: " << mk_ismt2_pp(res, m) << std::endl;);
return res;
@ -481,15 +441,7 @@ namespace smt {
expr_ref bv_atom(convert_atom(atom));
expr_ref bv_atom_w_side_c(m), atom_eq(m);
bv_atom_w_side_c = m.mk_and(bv_atom, mk_side_conditions());
try {
m_th_rw(bv_atom_w_side_c);
}
catch (rewriter_exception &) {
m_th_rw.reset();
throw;
}
m_th_rw(bv_atom_w_side_c);
atom_eq = m.mk_eq(atom, bv_atom_w_side_c);
assert_cnstr(atom_eq);
return true;
@ -600,13 +552,7 @@ namespace smt {
else
c = m.mk_eq(xc, yc);
try {
m_th_rw(c);
}
catch (rewriter_exception &) {
m_th_rw.reset();
throw;
}
m_th_rw(c);
expr_ref xe_eq_ye(m), c_eq_iff(m);
xe_eq_ye = m.mk_eq(xe, ye);
@ -652,13 +598,7 @@ namespace smt {
c = m.mk_not(xc_eq_yc);
}
try {
m_th_rw(c);
}
catch (rewriter_exception &) {
m_th_rw.reset();
throw;
}
m_th_rw(c);
expr_ref xe_eq_ye(m), not_xe_eq_ye(m), c_eq_iff(m);
xe_eq_ye = m.mk_eq(xe, ye);
@ -697,13 +637,7 @@ namespace smt {
expr_ref cnstr(m);
cnstr = (is_true) ? m.mk_implies(e, converted) : m.mk_implies(converted, e);
try {
m_th_rw(cnstr);
}
catch (rewriter_exception &) {
m_th_rw.reset();
throw;
}
m_th_rw(cnstr);
assert_cnstr(cnstr);
}