* Step 1: Bounds WORST_CASE(?,O(n^1))
    + Considered Problem:
        - Strict TRS:
            +(f(x),f(y)) -> f(+(x,y))
        - Signature:
            {+/2} / {f/1}
        - Obligation:
            innermost runtime complexity wrt. defined symbols {+} and constructors {f}
    + Applied Processor:
        Bounds {initialAutomaton = minimal, enrichment = match}
    + Details:
        The problem is match-bounded by 1.
        The enriched problem is compatible with follwoing automaton.
          +_0(2,2) -> 1
          +_1(2,2) -> 3
          f_0(2) -> 2
          f_1(3) -> 1
          f_1(3) -> 3
* Step 2: EmptyProcessor WORST_CASE(?,O(1))
    + Considered Problem:
        - Weak TRS:
            +(f(x),f(y)) -> f(+(x,y))
        - Signature:
            {+/2} / {f/1}
        - Obligation:
            innermost runtime complexity wrt. defined symbols {+} and constructors {f}
    + Applied Processor:
        EmptyProcessor
    + Details:
        The problem is already closed. The intended complexity is O(1).

WORST_CASE(?,O(n^1))