YES

# Parallel rule labeling (Zankl et al. 2015).

Consider the left-linear TRS R:

  +(0(),x) -> x
  +(s(x),y) -> s(+(x,y))

All parallel critical peaks (except C's) are decreasing wrt rule labeling:

  phi(+(0(),x) -> x) = 1
  phi(+(s(x),y) -> s(+(x,y))) = 1

  psi(+(0(),x) -> x) = 1
  psi(+(s(x),y) -> s(+(x,y))) = 1