Input TRS:
    1: s(a(x)) -> s(b(x))
    2: b(b(x)) -> a(x)
    3: f(s(x),y) ->= f(x,s(y))
    4: s(a(x)) ->= a(s(x))
    5: s(b(x)) ->= b(s(x))
    6: a(s(x)) ->= s(a(x))
    7: b(s(x)) ->= s(b(x))
Number of strict rules: 2
Direct Order(PosReal,>,Poly) ... removes: 1 3 2
     a(x1)	weight: (/ 3 8) + x1
     s(x1)	weight: (/ 305 8) + x1
     b(x1)	weight: (/ 1 4) + x1
     f(x1,x2)	weight: x2 + 2 * x1
Number of strict rules: 0
YES