blob: 3216de95ba1684766dcb4569729859077b5a611f (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
// RUN: %llvmgcc %s -g -emit-llvm -O0 -c -o %t1.bc
// RUN: rm -rf %t.klee-out
// RUN: %klee --output-dir=%t.klee-out --emit-all-errors %t1.bc 2>&1 | FileCheck %s
// RUN: ls %t.klee-out/ | grep .ktest | wc -l | grep 4
// RUN: ls %t.klee-out/ | grep .err | wc -l | grep 3
#include <stdlib.h>
#include <stdio.h>
unsigned klee_urange(unsigned start, unsigned end) {
unsigned x;
klee_make_symbolic(&x, sizeof x);
if (x-start>=end-start) klee_silent_exit(0);
return x;
}
int *make_int(int i) {
int *x = malloc(sizeof(*x));
*x = i;
return x;
}
int main() {
int *buf[4];
int i,s;
for (i=0; i<3; i++)
buf[i] = make_int(i);
buf[3] = 0;
s = klee_urange(0,4);
free(buf[s]);
// CHECK: MultipleFreeResolution.c:40: memory error: out of bound pointer
// CHECK: MultipleFreeResolution.c:40: memory error: out of bound pointer
// CHECK: MultipleFreeResolution.c:40: memory error: out of bound pointer
// FIXME: Use FileCheck's relative line numbers
for (i=0; i<3; i++) {
printf("*buf[%d] = %d\n", i, *buf[i]);
}
return 0;
}
// CHECK: KLEE: done: generated tests = 4
|
