WORST_CASE(?,O(n^1))
* Step 1: Ara WORST_CASE(?,O(n^1))
    + Considered Problem:
        - Strict TRS:
            comp_f_g#1(comp_f_g(x4,x5),comp_f_g(x2,x3),x1) -> comp_f_g#1(x4,x5,comp_f_g#1(x2,x3,x1))
            comp_f_g#1(comp_f_g(x7,x9),cons_x(x2),x4) -> comp_f_g#1(x7,x9,Cons(x2,x4))
            comp_f_g#1(cons_x(x2),comp_f_g(x5,x7),x3) -> Cons(x2,comp_f_g#1(x5,x7,x3))
            comp_f_g#1(cons_x(x5),cons_x(x2),x4) -> Cons(x5,Cons(x2,x4))
            main(Leaf(x4)) -> Cons(x4,Nil())
            main(Node(x9,x5)) -> comp_f_g#1(walk#1(x9),walk#1(x5),Nil())
            walk#1(Leaf(x2)) -> cons_x(x2)
            walk#1(Node(x5,x3)) -> comp_f_g(walk#1(x5),walk#1(x3))
        - Signature:
            {comp_f_g#1/3,main/1,walk#1/1} / {Cons/2,Leaf/1,Nil/0,Node/2,comp_f_g/2,cons_x/1}
        - Obligation:
            innermost runtime complexity wrt. defined symbols {comp_f_g#1,main,walk#1} and constructors {Cons,Leaf,Nil
            ,Node,comp_f_g,cons_x}
    + Applied Processor:
        Ara {minDegree = 1, maxDegree = 2, araTimeout = 3, araRuleShifting = Nothing}
    + Details:
        Signatures used:
        ----------------
          F (TrsFun "Cons") :: ["A"(0) x "A"(0)] -(0)-> "A"(15)
          F (TrsFun "Cons") :: ["A"(0) x "A"(0)] -(0)-> "A"(12)
          F (TrsFun "Cons") :: ["A"(0) x "A"(0)] -(0)-> "A"(8)
          F (TrsFun "Cons") :: ["A"(0) x "A"(0)] -(0)-> "A"(11)
          F (TrsFun "Leaf") :: ["A"(13)] -(13)-> "A"(13)
          F (TrsFun "Nil") :: [] -(0)-> "A"(15)
          F (TrsFun "Node") :: ["A"(13) x "A"(13)] -(13)-> "A"(13)
          F (TrsFun "comp_f_g") :: ["A"(12) x "A"(12)] -(12)-> "A"(12)
          F (TrsFun "comp_f_g#1") :: ["A"(12) x "A"(12) x "A"(1)] -(1)-> "A"(8)
          F (TrsFun "cons_x") :: ["A"(0)] -(12)-> "A"(12)
          F (TrsFun "main") :: ["A"(13)] -(5)-> "A"(5)
          F (TrsFun "walk#1") :: ["A"(13)] -(0)-> "A"(12)
        
        
        Cost-free Signatures used:
        --------------------------
        
        
        
        Base Constructor Signatures used:
        ---------------------------------
          "F (TrsFun \"Cons\")_A" :: ["A"(0) x "A"(0)] -(0)-> "A"(1)
          "F (TrsFun \"Leaf\")_A" :: ["A"(1)] -(1)-> "A"(1)
          "F (TrsFun \"Nil\")_A" :: [] -(0)-> "A"(1)
          "F (TrsFun \"Node\")_A" :: ["A"(1) x "A"(1)] -(1)-> "A"(1)
          "F (TrsFun \"comp_f_g\")_A" :: ["A"(0) x "A"(0)] -(1)-> "A"(1)
          "F (TrsFun \"cons_x\")_A" :: ["A"(0)] -(1)-> "A"(1)
        

WORST_CASE(?,O(n^1))