unrolling loop statements with labels into there annotations are not handled correctly (in conjunction with -ulevel)
ID0001135: This issue was created automatically from Mantis Issue 1135. Further discussion may take place here.
| Id | Project | Category | View | Due Date | Updated |
|---|---|---|---|---|---|
| ID0001135 | Frama-C | Kernel | public | 2012-03-27 | 2014-02-12 |
| Reporter | patrick | Assigned To | patrick | Resolution | fixed |
| Priority | normal | Severity | major | Reproducibility | have not tried |
| Platform | - | OS | - | OS Version | - |
| Product Version | Frama-C GIT, precise the release id | Target Version | - | Fixed in Version | Frama-C Oxygen-20120901 |
Description :
Fresh labels and correct gotos are introduced when unrolling loop statements, but labels into code annotations are not handled correctly.
Into the given example, the assertion is not unrolled correctly.
Additional Information :
cat file.c int X ; void main (int c) { for (int i = 0 ; i < 10 ;) { if (c) goto there ; X++; there: i++; //@ assert c==0 ==> \at(X,there)==i+1; } }
frama-c file.c -ulevel 1 -print int X; void main(int c) { int i; i = 0; if (! (i < 10)) { goto unrolling_2_loop; } if (c) { goto there_unrolling_4_loop; } X ++; there_unrolling_4_loop: /* internal / i ++; /@ assert c ? 0 ? \at(X,there) ? i+1; / ; unrolling_3_loop: / internal / ; while (i < 10) { if (c) { goto there; } X ++; there: i ++; /@ assert c ? 0 ? \at(X,there) ? i+1; / ; } unrolling_2_loop: / internal */ ; return; }