WORST_CASE(?,O(n^1))
* Step 1: NaturalPI WORST_CASE(?,O(n^1))
    + Considered Problem:
        - Strict TRS:
            f(s(x),y,y) -> f(y,x,s(x))
            g(x,y) -> x
            g(x,y) -> y
        - Signature:
            {f/3,g/2} / {s/1}
        - Obligation:
            innermost runtime complexity wrt. defined symbols {f,g} and constructors {s}
    + Applied Processor:
        NaturalPI {shape = StronglyLinear, restrict = NoRestrict, uargs = UArgs, urules = URules, selector = Nothing}
    + Details:
        We apply a polynomial interpretation of kind constructor-based(stronglyLinear):
        The following argument positions are considered usable:
          none
        
        Following symbols are considered usable:
          {f,g}
        TcT has computed the following interpretation:
          p(f) = x1 + x2     
          p(g) = 15 + x1 + x2
          p(s) = 1 + x1      
        
        Following rules are strictly oriented:
        f(s(x),y,y) = 1 + x + y  
                    > x + y      
                    = f(y,x,s(x))
        
             g(x,y) = 15 + x + y 
                    > x          
                    = x          
        
             g(x,y) = 15 + x + y 
                    > y          
                    = y          
        
        
        Following rules are (at-least) weakly oriented:
        

WORST_CASE(?,O(n^1))