MAYBE
* Step 1: Failure MAYBE
  + Considered Problem:
      - Strict TRS:
          2nd(mark(X)) -> mark(2nd(X))
          2nd(ok(X)) -> ok(2nd(X))
          active(2nd(X)) -> 2nd(active(X))
          active(2nd(cons(X,cons(Y,Z)))) -> mark(Y)
          active(cons(X1,X2)) -> cons(active(X1),X2)
          active(from(X)) -> from(active(X))
          active(from(X)) -> mark(cons(X,from(s(X))))
          active(s(X)) -> s(active(X))
          cons(mark(X1),X2) -> mark(cons(X1,X2))
          cons(ok(X1),ok(X2)) -> ok(cons(X1,X2))
          from(mark(X)) -> mark(from(X))
          from(ok(X)) -> ok(from(X))
          proper(2nd(X)) -> 2nd(proper(X))
          proper(cons(X1,X2)) -> cons(proper(X1),proper(X2))
          proper(from(X)) -> from(proper(X))
          proper(s(X)) -> s(proper(X))
          s(mark(X)) -> mark(s(X))
          s(ok(X)) -> ok(s(X))
          top(mark(X)) -> top(proper(X))
          top(ok(X)) -> top(active(X))
      - Signature:
          {2nd/1,active/1,cons/2,from/1,proper/1,s/1,top/1} / {mark/1,ok/1}
      - Obligation:
          innermost runtime complexity wrt. defined symbols {2nd,active,cons,from,proper,s,top} and constructors {mark
          ,ok}
  + Applied Processor:
      MI {miKind = Automaton Nothing, miDimension = 3, miUArgs = NoUArgs, miURules = NoURules, miSelector = Nothing}
  + Details:
      Incompatible
MAYBE