Input TRS:
    1: f(s(x),y,y) -> f(y,x,s(x))
Number of strict rules: 1
Direct Order(PosReal,>,Poly) ... removes: 1
     s(x1)	weight: (/ 1 4) + x1
     f(x1,x2,x3)	weight: 2 * x1 + x2 + x3
Number of strict rules: 0
YES