MAYBE 'Pop* with parameter subtitution (timeout of 60.0 seconds)' ----------------------------------------------------------- Answer: MAYBE Input Problem: innermost runtime-complexity with respect to Rules: { din(der(plus(X, Y))) -> u21(din(der(X)), X, Y) , u21(dout(DX), X, Y) -> u22(din(der(Y)), X, Y, DX) , u22(dout(DY), X, Y, DX) -> dout(plus(DX, DY)) , din(der(times(X, Y))) -> u31(din(der(X)), X, Y) , u31(dout(DX), X, Y) -> u32(din(der(Y)), X, Y, DX) , u32(dout(DY), X, Y, DX) -> dout(plus(times(X, DY), times(Y, DX))) , din(der(der(X))) -> u41(din(der(X)), X) , u41(dout(DX), X) -> u42(din(der(DX)), X, DX) , u42(dout(DDX), X, DX) -> dout(DDX)} Proof Output: The input cannot be shown compatible