Input TRS: 1: rev(nil()) -> nil() 2: rev(rev(x)) -> x 3: rev(++(x,y)) -> ++(rev(y),rev(x)) 4: ++(nil(),y) -> y 5: ++(x,nil()) -> x 6: ++(.(x,y),z) -> .(x,++(y,z)) 7: ++(x,++(y,z)) -> ++(++(x,y),z) 8: make(x) -> .(x,nil()) Number of Rules: 8 Direct QWPOS(Pol) ... orients all. I(.) = 3 * x1 + x2 + 1 sigma(.) = [1,2] I(nil) = 1 I(++) = x1 + x2 sigma(++) = [2,1] I(make) = 3 * x1 + 3 sigma(make) = [1] I(rev) = 2 * x1 sigma(rev) = [1] PREC: rev > ++ = make > . = nil Number of Rules: 0