Input TRS:
    1: a(b(x)) -> b(b(a(x)))
Number of strict rules: 1
Direct Order(PosReal,>,Poly) ... failed.
Freezing ... failed.
Dependency Pairs:
   #1: #a(b(x)) -> #a(x)
Number of SCCs: 1, DPs: 1, edges: 1
	SCC { #1 }
Removing DPs: Order(PosReal,>,Sum)... succeeded.
     a(x1)	weight: 0
     b(x1)	weight: (/ 1 2) + x1
   #a(x1)	weight: x1
    Usable rules: { }
    Removed DPs: #1
Number of SCCs: 0, DPs: 0, edges: 0
YES