Hi all,
I am trying to generate function coverage tests. From the tutorial and
mail-archive I could not understand how I can define pointer as symbolic and
also the data it point to.
In the follow example, if I make a pointer symbolic, most of the tests KLEE
generate are invalid ( 6 of 7 ) . The only valid test is with NULL values.
I would appreciate any help.
Best Regards,
Igor
#include "klee/klee.h"
#include <stdlib.h>
int get_sign(int *a) {
if ( a == NULL)
return 2;
int x = *a;
if (x == 0)
return 0;
if (x < 0)
return -1;
else
return 1;
}
int main() {
int *a = (int*)malloc(sizeof(int));
klee_make_symbolic(&a, sizeof(a), "a");
return get_sign(a);
}
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