* Step 1: Sum WORST_CASE(Omega(n^1),?)
    + Considered Problem:
        - Strict TRS:
            a__2ndsneg(X1,X2) -> 2ndsneg(X1,X2)
            a__2ndsneg(0(),Z) -> rnil()
            a__2ndsneg(s(N),cons(X,cons(Y,Z))) -> rcons(negrecip(mark(Y)),a__2ndspos(mark(N),mark(Z)))
            a__2ndspos(X1,X2) -> 2ndspos(X1,X2)
            a__2ndspos(0(),Z) -> rnil()
            a__2ndspos(s(N),cons(X,cons(Y,Z))) -> rcons(posrecip(mark(Y)),a__2ndsneg(mark(N),mark(Z)))
            a__from(X) -> cons(mark(X),from(s(X)))
            a__from(X) -> from(X)
            a__pi(X) -> a__2ndspos(mark(X),a__from(0()))
            a__pi(X) -> pi(X)
            a__plus(X1,X2) -> plus(X1,X2)
            a__plus(0(),Y) -> mark(Y)
            a__plus(s(X),Y) -> s(a__plus(mark(X),mark(Y)))
            a__square(X) -> a__times(mark(X),mark(X))
            a__square(X) -> square(X)
            a__times(X1,X2) -> times(X1,X2)
            a__times(0(),Y) -> 0()
            a__times(s(X),Y) -> a__plus(mark(Y),a__times(mark(X),mark(Y)))
            mark(0()) -> 0()
            mark(2ndsneg(X1,X2)) -> a__2ndsneg(mark(X1),mark(X2))
            mark(2ndspos(X1,X2)) -> a__2ndspos(mark(X1),mark(X2))
            mark(cons(X1,X2)) -> cons(mark(X1),X2)
            mark(from(X)) -> a__from(mark(X))
            mark(negrecip(X)) -> negrecip(mark(X))
            mark(nil()) -> nil()
            mark(pi(X)) -> a__pi(mark(X))
            mark(plus(X1,X2)) -> a__plus(mark(X1),mark(X2))
            mark(posrecip(X)) -> posrecip(mark(X))
            mark(rcons(X1,X2)) -> rcons(mark(X1),mark(X2))
            mark(rnil()) -> rnil()
            mark(s(X)) -> s(mark(X))
            mark(square(X)) -> a__square(mark(X))
            mark(times(X1,X2)) -> a__times(mark(X1),mark(X2))
        - Signature:
            {a__2ndsneg/2,a__2ndspos/2,a__from/1,a__pi/1,a__plus/2,a__square/1,a__times/2,mark/1} / {0/0,2ndsneg/2
            ,2ndspos/2,cons/2,from/1,negrecip/1,nil/0,pi/1,plus/2,posrecip/1,rcons/2,rnil/0,s/1,square/1,times/2}
        - Obligation:
            innermost runtime complexity wrt. defined symbols {a__2ndsneg,a__2ndspos,a__from,a__pi,a__plus,a__square
            ,a__times,mark} and constructors {0,2ndsneg,2ndspos,cons,from,negrecip,nil,pi,plus,posrecip,rcons,rnil,s
            ,square,times}
    + Applied Processor:
        Sum {left = someStrategy, right = someStrategy}
    + Details:
        ()
* Step 2: DecreasingLoops WORST_CASE(Omega(n^1),?)
    + Considered Problem:
        - Strict TRS:
            a__2ndsneg(X1,X2) -> 2ndsneg(X1,X2)
            a__2ndsneg(0(),Z) -> rnil()
            a__2ndsneg(s(N),cons(X,cons(Y,Z))) -> rcons(negrecip(mark(Y)),a__2ndspos(mark(N),mark(Z)))
            a__2ndspos(X1,X2) -> 2ndspos(X1,X2)
            a__2ndspos(0(),Z) -> rnil()
            a__2ndspos(s(N),cons(X,cons(Y,Z))) -> rcons(posrecip(mark(Y)),a__2ndsneg(mark(N),mark(Z)))
            a__from(X) -> cons(mark(X),from(s(X)))
            a__from(X) -> from(X)
            a__pi(X) -> a__2ndspos(mark(X),a__from(0()))
            a__pi(X) -> pi(X)
            a__plus(X1,X2) -> plus(X1,X2)
            a__plus(0(),Y) -> mark(Y)
            a__plus(s(X),Y) -> s(a__plus(mark(X),mark(Y)))
            a__square(X) -> a__times(mark(X),mark(X))
            a__square(X) -> square(X)
            a__times(X1,X2) -> times(X1,X2)
            a__times(0(),Y) -> 0()
            a__times(s(X),Y) -> a__plus(mark(Y),a__times(mark(X),mark(Y)))
            mark(0()) -> 0()
            mark(2ndsneg(X1,X2)) -> a__2ndsneg(mark(X1),mark(X2))
            mark(2ndspos(X1,X2)) -> a__2ndspos(mark(X1),mark(X2))
            mark(cons(X1,X2)) -> cons(mark(X1),X2)
            mark(from(X)) -> a__from(mark(X))
            mark(negrecip(X)) -> negrecip(mark(X))
            mark(nil()) -> nil()
            mark(pi(X)) -> a__pi(mark(X))
            mark(plus(X1,X2)) -> a__plus(mark(X1),mark(X2))
            mark(posrecip(X)) -> posrecip(mark(X))
            mark(rcons(X1,X2)) -> rcons(mark(X1),mark(X2))
            mark(rnil()) -> rnil()
            mark(s(X)) -> s(mark(X))
            mark(square(X)) -> a__square(mark(X))
            mark(times(X1,X2)) -> a__times(mark(X1),mark(X2))
        - Signature:
            {a__2ndsneg/2,a__2ndspos/2,a__from/1,a__pi/1,a__plus/2,a__square/1,a__times/2,mark/1} / {0/0,2ndsneg/2
            ,2ndspos/2,cons/2,from/1,negrecip/1,nil/0,pi/1,plus/2,posrecip/1,rcons/2,rnil/0,s/1,square/1,times/2}
        - Obligation:
            innermost runtime complexity wrt. defined symbols {a__2ndsneg,a__2ndspos,a__from,a__pi,a__plus,a__square
            ,a__times,mark} and constructors {0,2ndsneg,2ndspos,cons,from,negrecip,nil,pi,plus,posrecip,rcons,rnil,s
            ,square,times}
    + Applied Processor:
        DecreasingLoops {bound = AnyLoop, narrow = 10}
    + Details:
        The system has following decreasing Loops:
          mark(x){x -> 2ndsneg(x,y)} =
            mark(2ndsneg(x,y)) ->^+ a__2ndsneg(mark(x),mark(y))
              = C[mark(x) = mark(x){}]

WORST_CASE(Omega(n^1),?)