The Runtime Complexity (innermost) of the given CpxTRS could be proven to be BOUNDS(n^1, INF).

(0) Obligation:

Runtime Complexity TRS:
The TRS R consists of the following rules:

revconsapp(C(x1, x2), r) → revconsapp(x2, C(x1, r))
deeprevapp(C(x1, x2), rest) → deeprevapp(x2, C(x1, rest))
deeprevapp(V(n), rest) → revconsapp(rest, V(n))
deeprevapp(N, rest) → rest
revconsapp(V(n), r) → r
revconsapp(N, r) → r
deeprev(C(x1, x2)) → deeprevapp(C(x1, x2), N)
deeprev(V(n)) → V(n)
deeprev(N) → N
second(V(n)) → N
second(C(x1, x2)) → x2
isVal(C(x1, x2)) → False
isVal(V(n)) → True
isVal(N) → False
isNotEmptyT(C(x1, x2)) → True
isNotEmptyT(V(n)) → False
isNotEmptyT(N) → False
isEmptyT(C(x1, x2)) → False
isEmptyT(V(n)) → False
isEmptyT(N) → True
first(V(n)) → N
first(C(x1, x2)) → x1
goal(x) → deeprev(x)

Rewrite Strategy: INNERMOST

(1) DecreasingLoopProof (EQUIVALENT transformation)

The following loop(s) give(s) rise to the lower bound Ω(n¹):
The rewrite sequence
revconsapp(C(x1, x2), r) →⁺ revconsapp(x2, C(x1, r))
gives rise to a decreasing loop by considering the right hand sides subterm at position [].
The pumping substitution is [x2 / C(x1, x2)].
The result substitution is [r / C(x1, r)].

(2) BOUNDS(n^1, INF)