Input TRS:
    1: f(x) -> x
    2: g(x) -> x
   e1: f(x) ->= g(x)	[relative]
   e2: g(x) ->= f(x)	[relative]
Number of Rules: 2
Direct POLO(Sum) ... removes: 1 2
	I(f) = x1 + 1
	I(g) = x1 + 1
Number of Rules: 0