* Step 1: Sum WORST_CASE(Omega(n^1),?)
    + Considered Problem:
        - Strict TRS:
            del(x,cons(y,z)) -> if2(eq(x,y),x,y,z)
            del(x,nil()) -> nil()
            eq(0(),0()) -> true()
            eq(0(),s(y)) -> false()
            eq(s(x),0()) -> false()
            eq(s(x),s(y)) -> eq(x,y)
            if1(false(),x,y,xs) -> min(y,xs)
            if1(true(),x,y,xs) -> min(x,xs)
            if2(false(),x,y,xs) -> cons(y,del(x,xs))
            if2(true(),x,y,xs) -> xs
            le(0(),y) -> true()
            le(s(x),0()) -> false()
            le(s(x),s(y)) -> le(x,y)
            min(x,cons(y,z)) -> if1(le(x,y),x,y,z)
            min(x,nil()) -> x
            minsort(cons(x,y)) -> cons(min(x,y),minsort(del(min(x,y),cons(x,y))))
            minsort(nil()) -> nil()
        - Signature:
            {del/2,eq/2,if1/4,if2/4,le/2,min/2,minsort/1} / {0/0,cons/2,false/0,nil/0,s/1,true/0}
        - Obligation:
            innermost runtime complexity wrt. defined symbols {del,eq,if1,if2,le,min,minsort} 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:
            del(x,cons(y,z)) -> if2(eq(x,y),x,y,z)
            del(x,nil()) -> nil()
            eq(0(),0()) -> true()
            eq(0(),s(y)) -> false()
            eq(s(x),0()) -> false()
            eq(s(x),s(y)) -> eq(x,y)
            if1(false(),x,y,xs) -> min(y,xs)
            if1(true(),x,y,xs) -> min(x,xs)
            if2(false(),x,y,xs) -> cons(y,del(x,xs))
            if2(true(),x,y,xs) -> xs
            le(0(),y) -> true()
            le(s(x),0()) -> false()
            le(s(x),s(y)) -> le(x,y)
            min(x,cons(y,z)) -> if1(le(x,y),x,y,z)
            min(x,nil()) -> x
            minsort(cons(x,y)) -> cons(min(x,y),minsort(del(min(x,y),cons(x,y))))
            minsort(nil()) -> nil()
        - Signature:
            {del/2,eq/2,if1/4,if2/4,le/2,min/2,minsort/1} / {0/0,cons/2,false/0,nil/0,s/1,true/0}
        - Obligation:
            innermost runtime complexity wrt. defined symbols {del,eq,if1,if2,le,min,minsort} and constructors {0,cons
            ,false,nil,s,true}
    + Applied Processor:
        DecreasingLoops {bound = AnyLoop, narrow = 10}
    + Details:
        The system has following decreasing Loops:
          eq(x,y){x -> s(x),y -> s(y)} =
            eq(s(x),s(y)) ->^+ eq(x,y)
              = C[eq(x,y) = eq(x,y){}]

WORST_CASE(Omega(n^1),?)