// verifast_options{disable_overflow_check target:ILP32}


extern void __assert_fail (const char *__assertion, const char *__file,
      unsigned int __line, const char *__function)
     __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__noreturn__));
extern void __assert_perror_fail (int __errnum, const char *__file,
      unsigned int __line, const char *__function)
     __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__noreturn__));
extern void __assert (const char *__assertion, const char *__file, int __line)
     __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__noreturn__));

void reach_error(void) //@ requires false; 
//@ ensures true;
{((void) sizeof ((0) ? 1 : 0), __extension__ ({ if (0) ; else __assert_fail ("0", "benchmark37_conjunctive.c", 2, __extension__ __PRETTY_FUNCTION__); }));}
extern int __VERIFIER_nondet_int(void);//@ requires true; 
//@ ensures true;

extern _Bool __VERIFIER_nondet_bool(void);//@ requires true; 
//@ ensures true;

void __VERIFIER_assert(int cond) //@ requires (cond != 0); 
//@ ensures (cond != 0);
{
  if (!cond) {
    reach_error();
  }
}
int main() //@ requires module(benchmark37_conjunctive__verifast_instrumented_modified, true); 
//@ ensures junk();
{
  int x = __VERIFIER_nondet_int();
  int y = __VERIFIER_nondet_int();
  if (!(x == y && x >= 0)) return 0;
  while (x > 0)//@ invariant ((0 <= y) && (x <= y));
 {
    x--;
    y--;
  }
  __VERIFIER_assert(y>=0);
  return 0;
}