* Step 1: Sum WORST_CASE(Omega(n^1),?)
    + Considered Problem:
        - Strict TRS:
            conv(x) -> conviter(x,cons(0(),nil()))
            conviter(x,l) -> if(zero(x),x,l)
            half(0()) -> 0()
            half(s(0())) -> 0()
            half(s(s(x))) -> s(half(x))
            if(false(),x,l) -> conviter(half(x),cons(lastbit(x),l))
            if(true(),x,l) -> l
            lastbit(0()) -> 0()
            lastbit(s(0())) -> s(0())
            lastbit(s(s(x))) -> lastbit(x)
            zero(0()) -> true()
            zero(s(x)) -> false()
        - Signature:
            {conv/1,conviter/2,half/1,if/3,lastbit/1,zero/1} / {0/0,cons/2,false/0,nil/0,s/1,true/0}
        - Obligation:
            innermost runtime complexity wrt. defined symbols {conv,conviter,half,if,lastbit,zero} and constructors {0
            ,cons,false,nil,s,true}
    + Applied Processor:
        Sum {left = someStrategy, right = someStrategy}
    + Details:
        ()
* Step 2: DecreasingLoops WORST_CASE(Omega(n^1),?)
    + Considered Problem:
        - Strict TRS:
            conv(x) -> conviter(x,cons(0(),nil()))
            conviter(x,l) -> if(zero(x),x,l)
            half(0()) -> 0()
            half(s(0())) -> 0()
            half(s(s(x))) -> s(half(x))
            if(false(),x,l) -> conviter(half(x),cons(lastbit(x),l))
            if(true(),x,l) -> l
            lastbit(0()) -> 0()
            lastbit(s(0())) -> s(0())
            lastbit(s(s(x))) -> lastbit(x)
            zero(0()) -> true()
            zero(s(x)) -> false()
        - Signature:
            {conv/1,conviter/2,half/1,if/3,lastbit/1,zero/1} / {0/0,cons/2,false/0,nil/0,s/1,true/0}
        - Obligation:
            innermost runtime complexity wrt. defined symbols {conv,conviter,half,if,lastbit,zero} and constructors {0
            ,cons,false,nil,s,true}
    + Applied Processor:
        DecreasingLoops {bound = AnyLoop, narrow = 10}
    + Details:
        The system has following decreasing Loops:
          half(x){x -> s(s(x))} =
            half(s(s(x))) ->^+ s(half(x))
              = C[half(x) = half(x){}]

WORST_CASE(Omega(n^1),?)