Pb with annot.c in
ID0000440: This issue was created automatically from Mantis Issue 440. Further discussion may take place here.
| Id | Project | Category | View | Due Date | Updated |
|---|---|---|---|---|---|
| ID0000440 | Frama-C | Plug-in > jessie | public | 2010-04-04 | 2014-02-12 |
| Reporter | gava | Assigned To | virgile | Resolution | fixed |
| Priority | normal | Severity | minor | Reproducibility | always |
| Platform | - | OS | - | OS Version | - |
| Product Version | Frama-C Beryllium-20090902 | Target Version | - | Fixed in Version | Frama-C Carbon-20101201-beta1 |
Description :
If you use
frama-c -jessie annot.c where annot.c (from /test/cil.) ==
int fact(int n) { int r = 1 ; while ( n > 0 ) { //@ assert n > 0 ; before: r = n-- ; //@ assert r == \at(rn,before) ; } return r ; }
Computation of VCs... File "why/annot.why", line 410, characters 74-82: Unbound label 'before'
(which is true when looking the file)
Additional Information :
The bug does not show up if the first assert is removed. So it seems the first assert "enclosed" the statement "before: r *= n-- ;"
Which means that the problem might come from the Frama-C parser itself, which might have built a wrong AST.
Virgile, any thoughts ?