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Fix http://z3.codeplex.com/workitem/19

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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
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Leonardo de Moura 2013-01-24 12:51:03 -08:00
parent afaef63bfa
commit 7eaa5562d8
2 changed files with 5 additions and 0 deletions
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2
RELEASE_NOTES
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@ -55,6 +55,8 @@ Version 4.3.2
- Fixed bug reported at http://stackoverflow.com/questions/14307692/unknown-when-using-defs - Fixed bug reported at http://stackoverflow.com/questions/14307692/unknown-when-using-defs
- Relax check_logic procedure. Now, it accepts coercions (to_real) automatically introduced by Z3. (Thanks to Paul Jackson). This is a fix for http://z3.codeplex.com/workitem/19.
Version 4.3.1 Version 4.3.1
============= =============

3
src/cmd_context/check_logic.cpp
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@ -228,6 +228,9 @@ struct check_logic::imp {
bool is_int(expr * t) { bool is_int(expr * t) {
if (m_a_util.is_uminus(t)) if (m_a_util.is_uminus(t))
t = to_app(t)->get_arg(0); t = to_app(t)->get_arg(0);
// Take care of coercions automatically added by Z3
if (m_a_util.is_to_real(t))
t = to_app(t)->get_arg(0);
return m_a_util.is_numeral(t); return m_a_util.is_numeral(t);
} }