Unprovable inequality involving (unsigned) -1
ID0002127: This issue was created automatically from Mantis Issue 2127. Further discussion may take place here.
| Id | Project | Category | View | Due Date | Updated |
|---|---|---|---|---|---|
| ID0002127 | Frama-C | Plug-in > wp | public | 2015-06-04 | 2016-01-26 |
| Reporter | loic | Assigned To | correnson | Resolution | fixed |
| Priority | normal | Severity | minor | Reproducibility | always |
| Platform | Linux | OS | Ubuntu | OS Version | 12.04.5 LTS |
| Product Version | - | Target Version | - | Fixed in Version | Frama-C Magnesium |
Description :
Nitrogen-20111001 alt-ergo 0.94
The following assertion cannot be proven.
void arithmetic_testcase(unsigned i) { /*@ assert i <= (unsigned) -10 ==> i + 9 <= (unsigned) -1; */ }
Steps To Reproduce :
frama-c -wp -wp-ret for the code above (also as attachment).