MAYBE
* Step 1: Failure MAYBE
  + Considered Problem:
      - Strict TRS:
          activate(X) -> X
          activate(n__adx(X)) -> adx(activate(X))
          activate(n__incr(X)) -> incr(activate(X))
          activate(n__zeros()) -> zeros()
          adx(X) -> n__adx(X)
          adx(cons(X,L)) -> incr(cons(X,n__adx(activate(L))))
          adx(nil()) -> nil()
          head(cons(X,L)) -> X
          incr(X) -> n__incr(X)
          incr(cons(X,L)) -> cons(s(X),n__incr(activate(L)))
          incr(nil()) -> nil()
          nats() -> adx(zeros())
          tail(cons(X,L)) -> activate(L)
          zeros() -> cons(0(),n__zeros())
          zeros() -> n__zeros()
      - Signature:
          {activate/1,adx/1,head/1,incr/1,nats/0,tail/1,zeros/0} / {0/0,cons/2,n__adx/1,n__incr/1,n__zeros/0,nil/0
          ,s/1}
      - Obligation:
          innermost runtime complexity wrt. defined symbols {activate,adx,head,incr,nats,tail
          ,zeros} and constructors {0,cons,n__adx,n__incr,n__zeros,nil,s}
  + Applied Processor:
      NaturalPI {shape = Mixed 3, restrict = NoRestrict, uargs = UArgs, urules = URules, selector = Nothing}
  + Details:
      Incompatible
MAYBE