Input TRS:
    1: f(x,empty()) -> x
    2: f(empty(),cons(a,k)) -> f(cons(a,k),k)
    3: f(cons(a,k),y) -> f(y,k)
Number of strict rules: 3
Direct Order(PosReal,>,Poly) ... removes: 1 3 2
     f(x1,x2)	weight: (/ 1 4) + x1 + 2 * x2
  cons(x1,x2)	weight: (/ 1 4) + 2 * x1 + 2 * x2
 empty()	weight: 0
Number of strict rules: 0
YES