// verifast_options{disable_overflow_check target:ILP32}

extern void abort(void);//@ requires true; 
//@ ensures true;

extern void __assert_fail(const char *, const char *, unsigned int, const char *) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__noreturn__));
void reach_error() //@ requires false; 
//@ ensures true;
{ __assert_fail("0", "trex03-2.c", 3, "reach_error"); }

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

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


int main()//@ requires module(trex03_2__verifast_instrumented_modified, true); 
//@ ensures junk();

{
  unsigned int x1=__VERIFIER_nondet_uint(), x2=__VERIFIER_nondet_uint(), x3=__VERIFIER_nondet_uint();
  unsigned int d1=1, d2=1, d3=1;
  _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool();
  
  while(x1>0 && x2>0 && x3>0)//@ invariant true;

  {
    if (c1) x1=x1-d1;
    else if (c2) x2=x2-d2;
    else x3=x3-d3;
    c1=__VERIFIER_nondet_bool();
    c2=__VERIFIER_nondet_bool();
  }

  __VERIFIER_assert(x1==0 || x2==0 || x3==0);
  return 0;
}