MAYBE
* Step 1: Failure MAYBE
  + Considered Problem:
      - Strict TRS:
          +(x,0()) -> x
          +(x,s(y)) -> s(+(x,y))
          fib(0()) -> 0()
          fib(s(0())) -> s(0())
          fib(s(s(x))) -> +(fib(s(x)),fib(x))
      - Signature:
          {+/2,fib/1} / {0/0,s/1}
      - Obligation:
          innermost runtime complexity wrt. defined symbols {+,fib} and constructors {0,s}
  + Applied Processor:
      Ara {heuristics_ = NoHeuristics, minDegree = 1, maxDegree = 3, araTimeout = 60, araFindStrictRules = Nothing, araSmtSolver = MiniSMT}
  + Details:
      The input can not be schown compatible.
MAYBE