Showing error 1502

User: Jiri Slaby
Error type: Reachable Error Location
Error type description: A specified error location is reachable in some program path
File location: loops/nec20_unsafe.i
Line in file: 3
Project: SV-COMP 2013
Project version: 2.6.28
Tools: Manual Work
Entered: 2013-01-17 16:57:54 UTC

Source: 

 1void __VERIFIER_assert(int cond) {
 2  if (!(cond)) {
 3    ERROR: goto ERROR;
 4  }
 5  return;
 6}
 7int b;
 8_Bool __VERIFIER_nondet_bool();
 9int main(){
10   _Bool k=__VERIFIER_nondet_bool();
11   int i,n,j;
12   int a[1025];
13
14   if (k){
15      n=0;
16   } else {
17      n=1023;
18   }
19
20   i=0;
21
22   while ( i <= n){
23      i++;
24      j= j +2;
25   }
26
27   a[i]=0;
28   a[j]=0;
29   __VERIFIER_assert(j<1025);
30   a[b]=0;
31   if (b >= 0 && b < 1023)
32      a[b]=1;
33   else
34      a[b%1023] =1;
35
36   return 1;
37
38}
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