// 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 #include unsigned klee_urange(unsigned start, unsigned end) { unsigned x; klee_make_symbolic(&x, sizeof x, "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]); for (i = 0; i < 3; i++) { // CHECK: MultipleFreeResolution.c:[[@LINE+3]]: memory error: out of bound pointer // CHECK: MultipleFreeResolution.c:[[@LINE+2]]: memory error: out of bound pointer // CHECK: MultipleFreeResolution.c:[[@LINE+1]]: memory error: out of bound pointer printf("*buf[%d] = %d\n", i, *buf[i]); } return 0; } // CHECK: KLEE: done: generated tests = 4