MAYBE 'Pop* (timeout of 60.0 seconds)' -------------------------------- Answer: MAYBE Input Problem: innermost runtime-complexity with respect to Rules: { app(x, y) -> helpa(0(), plus(length(x), length(y)), x, y) , plus(x, 0()) -> x , plus(x, s(y)) -> s(plus(x, y)) , length(nil()) -> 0() , length(cons(x, y)) -> s(length(y)) , helpa(c, l, ys, zs) -> if(ge(c, l), c, l, ys, zs) , ge(x, 0()) -> true() , ge(0(), s(x)) -> false() , ge(s(x), s(y)) -> ge(x, y) , if(true(), c, l, ys, zs) -> nil() , if(false(), c, l, ys, zs) -> helpb(c, l, greater(ys, zs), smaller(ys, zs)) , greater(ys, zs) -> helpc(ge(length(ys), length(zs)), ys, zs) , smaller(ys, zs) -> helpc(ge(length(ys), length(zs)), zs, ys) , helpc(true(), ys, zs) -> ys , helpc(false(), ys, zs) -> zs , helpb(c, l, cons(y, ys), zs) -> cons(y, helpa(s(c), l, ys, zs))} Proof Output: The input cannot be shown compatible