void abort() { };

                                                                       
                                                  
                                                                             
                                                                   
                                                  
                                                                             
                                                                              
                                                                             

                                                                                                                                                               
                        
void assume_abort_if_not(int cond) {
  if(!cond) {abort();}
}
/*@ 
    requires ((1 <= \old(cond))) && (cond != 0);
    ensures ((1 <= \old(cond))) && (1);
@*/
void __VERIFIER_assert(int cond) {
  if (!(cond)) {
      ERROR: {/*@ assert(0); */;abort();}
  }
  return;
}
int __VERIFIER_nondet_int();
int main() {
    int i,j,k;
    i = 0;
    k = 9;
    j = -100;
/*@
loop invariant ((((i == 0) && (((long long) j + 100) <= 0)) || (k == 4)));
@*/
    while (i <= 100) {
 i = i + 1;
/*@
loop invariant (((i < 2) || (k == 4)));
@*/
 while (j < 20) {
     j = i + j;
 }
 k = 4;
/*@
loop invariant ((k == 4));
@*/
 while (k <= 3) {
     k = k + 1;
 }
    }
    __VERIFIER_assert(k == 4);
    return 0;
}