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