Incorrect results with low slevel
ID0000844: This issue was created automatically from Mantis Issue 844. Further discussion may take place here.
| Id | Project | Category | View | Due Date | Updated |
|---|---|---|---|---|---|
| ID0000844 | Frama-C | Plug-in > Eva | public | 2011-05-28 | 2011-10-10 |
| Reporter | yakobowski | Assigned To | pascal | Resolution | fixed |
| Priority | normal | Severity | major | Reproducibility | always |
| Platform | - | OS | - | OS Version | - |
| Product Version | Frama-C Carbon-20110201 | Target Version | - | Fixed in Version | Frama-C Nitrogen-20111001 |
Description :
The following program is correct and always terminates. However, with no slevel, the value analysis incorrectly states that main and memset do not terminate.
(Analyzed with -value -slevel 0)
void* memset (void* dest, int val, unsigned int len) { unsigned char ptr = (unsigned char)dest; while (len-- > 0) { *ptr++ = val; } return dest; }
extern int k;
void main () { int v; int x = k ? 2 : 3; memset(&v,42,x); }