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Bugfixes for model verification of unspecified values of fp.min/fp.max

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This commit is contained in:
Christoph M. Wintersteiger 2015-11-02 19:25:44 +00:00
parent 14d2356a32
commit 92152b16ca
6 changed files with 131 additions and 113 deletions
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4
src/ast/rewriter/fpa_rewriter.cpp
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@ -439,7 +439,7 @@ br_status fpa_rewriter::mk_min(expr * arg1, expr * arg2, expr_ref & result) {
if (m_util.is_numeral(arg1, v1) && m_util.is_numeral(arg2, v2)) {
if (m_fm.is_zero(v1) && m_fm.is_zero(v2) && m_fm.sgn(v1) != m_fm.sgn(v2)) {
result = m().mk_app(get_fid(), OP_FPA_INTERNAL_MIN_UNSPECIFIED, arg1, arg2);
return BR_DONE;
return BR_REWRITE1;
}
else {
scoped_mpf r(m_fm);
@ -474,7 +474,7 @@ br_status fpa_rewriter::mk_max(expr * arg1, expr * arg2, expr_ref & result) {
if (m_util.is_numeral(arg1, v1) && m_util.is_numeral(arg2, v2)) {
if (m_fm.is_zero(v1) && m_fm.is_zero(v2) && m_fm.sgn(v1) != m_fm.sgn(v2)) {
result = m().mk_app(get_fid(), OP_FPA_INTERNAL_MAX_UNSPECIFIED, arg1, arg2);
return BR_DONE;
return BR_REWRITE1;
}
else {
scoped_mpf r(m_fm);