For function f(int a) ; ensures a==\old(a) may be invalid
ID0000168: This issue was created automatically from Mantis Issue 168. Further discussion may take place here.
| Id | Project | Category | View | Due Date | Updated |
|---|---|---|---|---|---|
| ID0000168 | Frama-C | Plug-in > Eva | public | 2009-06-29 | 2009-09-24 |
| Reporter | patrick | Assigned To | pascal | Resolution | no change required |
| Priority | normal | Severity | major | Reproducibility | always |
| Platform | - | OS | - | OS Version | - |
| Product Version | Frama-C GIT, precise the release id | Target Version | - | Fixed in Version | Frama-C Beryllium-20090901 |
Description :
The command "toplevel.opt -val old.c" gives the following line: old.c:8: Warning: Function f, behavior default: postcondition got status valid
This is wrong: the postcondition is invalid.
Additional Information :
Revision 5634
Contents of the file old.c int *p, q ; /@ ensures *q == a ; */ void f (int a) { *q = a ; *p = 3 ; } int main (int x, int y) { q = &y ; p = &x ; f (x) ; return x ; }