YES

TRS:

  a__from(X) -> cons(mark(X),from(s(X)))
  a__length(nil()) -> 0()
  a__length(cons(X,Y)) -> s(a__length1(Y))
  a__length1(X) -> a__length(X)
  mark(from(X)) -> a__from(mark(X))
  mark(length(X)) -> a__length(X)
  mark(length1(X)) -> a__length1(X)
  mark(cons(X1,X2)) -> cons(mark(X1),X2)
  mark(s(X)) -> s(mark(X))
  mark(nil()) -> nil()
  mark(0()) -> 0()
  a__from(X) -> from(X)
  a__length(X) -> length(X)
  a__length1(X) -> length1(X)

max/plus interpretations on N:

  a__from_A(x1) = max{4, 9 + x1}
  a__from#_A(x1) = max{14, 6 + x1}
  cons_A(x1,x2) = max{8, 4 + x1, 2}
  cons#_A(x1,x2) = max{5, 7, 14}
  mark_A(x1) = max{2, 3 + x1}
  mark#_A(x1) = max{4, 6 + x1}
  from_A(x1) = max{0, 9 + x1}
  from#_A(x1) = max{10, 3}
  s_A(x1) = max{7, x1}
  s#_A(x1) = max{2, 3}
  a__length_A(x1) = max{7, 6}
  a__length#_A(x1) = max{1, 1}
  nil_A = 3
  nil#_A = 6
  0_A = 7
  0#_A = 5
  a__length1_A(x1) = max{5, 7}
  a__length1#_A(x1) = max{3, 3}
  length_A(x1) = max{2, 7}
  length#_A(x1) = max{0, 0}
  length1_A(x1) = max{1, 7}
  length1#_A(x1) = max{3, 3}

precedence:

  a__from > from > mark > cons = nil > s = 0 > a__length = a__length1 > length = length1