MAYBE 'Pop* with parameter subtitution (timeout of 60.0 seconds)' ----------------------------------------------------------- Answer: MAYBE Input Problem: innermost runtime-complexity with respect to Rules: { a(x1) -> b(c(x1)) , a(b(x1)) -> b(a(x1)) , d(c(x1)) -> d(a(x1)) , a(c(x1)) -> c(a(x1))} Proof Output: The input cannot be shown compatible