// 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 (1 <= cond);
//@ ensures (1 <= cond);
{  if (!(cond)) {
    ERROR: {reach_error();abort();}
  }
  return;
}

int main(void) 
//@ requires module(diamond_1_1__verifast_instrumented, true);
//@ ensures junk();
{
    //@ open_module(); 
  unsigned int x = 0;
  unsigned int y = __VERIFIER_nondet_uint();

while (x < 99)
//@ invariant ((((x == 0) || (((y % 2) == 0) && ((x % 2) == 0))) || ((((x + 4294967295) % 4294967296) <= 98) && ((x % 2) == 0))) || ((((x + 4294967295) % 4294967296) <= 98) && ((x % 2) == (y % 2))));
    {
    if (y % 2 == 0) {
      x += 2;
    } else {
      x++;
    }
  }

  __VERIFIER_assert((x % 2) == (y % 2));
 return 0; }