// verifast_options{disable_overflow_check target:ILP32}
extern void abort(void);
//@ requires true;
//@ ensures true;
void reach_error()
//@ requires false;
//@ ensures true;
{}extern unsigned int __VERIFIER_nondet_uint(void);
//@ requires true;
//@ ensures true;

void __VERIFIER_assert(int cond) 
//@ requires (cond != 0);
//@ ensures (cond != 0);
{  if (!(cond)) {
    ERROR: {reach_error();abort();}
  }
  return;
}

int main(void) 
//@ requires module(multivar_1_1__verifast_instrumented, true);
//@ ensures junk();
{
    //@ open_module(); 
  unsigned int x = __VERIFIER_nondet_uint();
  unsigned int y = x;

while (x < 1024)
//@ invariant (y == x);
    {
    x++;
    y++;
  }

  __VERIFIER_assert(x == y);
 return 0; }