1extern void abort(void);
   2extern void __assert_fail(const char *, const char *, unsigned int, const char *) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__noreturn__));
   3void reach_error() { __assert_fail("0", "simple_3-1.c", 3, "reach_error"); }
   4extern unsigned short __VERIFIER_nondet_ushort(void);
   5
   6void __VERIFIER_assert(int cond) {
   7  if (!(cond)) {◐PART
   8    ERROR: {reach_error();abort();}
   9  }
  10  return;
  11}
  12
  13int main(void) {
  14  unsigned int x = 0;
  15  unsigned short N = __VERIFIER_nondet_ushort();
  16
  17  while (x < N) {●FULL
  18    x += 2;
  19  }
  20
  21  __VERIFIER_assert(x % 2);
  22}