extern void abort(void);
extern void __assert_fail(const char *, const char *, unsigned int, const char *) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__noreturn__));
void reach_error() { __assert_fail("0", "while_infinite_loop_3.c", 3, "reach_error"); }

void __VERIFIER_assert(int cond) {
  if (!(cond)) {
    ERROR: {reach_error();abort();}
  }
  return;
}

int x=0;

void eval(void) 
{
  while (1) {
      x=0;
      break;
  }
  return;
}


int main() {

  while(1)
  {
    eval();
    __VERIFIER_assert(x==0);    
  }

  __VERIFIER_assert(x!=0);

  return 0;
}