Input TRS:
    1: ++(nil(),y) -> y
    2: ++(x,nil()) -> x
    3: ++(.(x,y),z) -> .(x,++(y,z))
    4: ++(++(x,y),z) -> ++(x,++(y,z))
Number of Rules: 4
Direct QWPOS(mSum) ... orients all.
	I(.) = x1 + x2 + 1	sigma(.) = [1,2]
	I(nil) = 0
	I(++) = x1 + x2 + 1	sigma(++) = [1,2]
    PREC: nil = ++ > .
Number of Rules: 0