MAYBE
* Step 1: Failure MAYBE
  + Considered Problem:
      - Strict TRS:
          addchild(node(y,ys),node(n,xs)) -> node(y,cons(node(n,xs),ys))
          f(node(s(n),xs)) -> f(addchild(select(xs),node(n,xs)))
          select(cons(ap,xs)) -> ap
          select(cons(ap,xs)) -> select(xs)
      - Signature:
          {addchild/2,f/1,select/1} / {cons/2,node/2,s/1}
      - Obligation:
          innermost runtime complexity wrt. defined symbols {addchild,f,select} and constructors {cons,node,s}
  + Applied Processor:
      NaturalPI {shape = Mixed 3, restrict = NoRestrict, uargs = UArgs, urules = URules, selector = Nothing}
  + Details:
      Incompatible
MAYBE