compiler-rt/test/asan/TestCases/sleep_after_init.c

// RUN: %clang_asan -O2 %s -o %t
// RUN: %env_asan_opts=sleep_after_init=1 not %run %t 2>&1 | FileCheck %s

#include <stdlib.h>
int main() {
  // CHECK: Sleeping for 1 second
  char *x = (char*)malloc(10 * sizeof(char));
  free(x);
  return x[5];
}