MAYBE 'Pop* with parameter subtitution (timeout of 60.0 seconds)' ----------------------------------------------------------- Answer: MAYBE Input Problem: innermost runtime-complexity with respect to Rules: { isLeaf(leaf()) -> true() , isLeaf(cons(u, v)) -> false() , left(cons(u, v)) -> u , right(cons(u, v)) -> v , concat(leaf(), y) -> y , concat(cons(u, v), y) -> cons(u, concat(v, y)) , less_leaves(u, v) -> if1(isLeaf(u), isLeaf(v), u, v) , if1(b, true(), u, v) -> false() , if1(b, false(), u, v) -> if2(b, u, v) , if2(true(), u, v) -> true() , if2(false(), u, v) -> less_leaves(concat(left(u), right(u)), concat(left(v), right(v)))} Proof Output: The input cannot be shown compatible