let R be the TRS under consideration

0(q0(0(_1))) -> 0(0(q0(_1))) is in elim_R(R)
let l0 be the left-hand side of this rule
p0 = 0 is a position in l0
we have l0|p0 = q0(0(_1))
q0(h(_2)) -> q0(0(h(_2))) is in R
let r'0 be the right-hand side of this rule
theta0 = {_1/h(_2)} is a mgu of l0|p0 and r'0

==> 0(q0(h(_1))) -> 0(0(q0(h(_1)))) is in EU_R^1
let l be the left-hand side and r be the right-hand side of this rule
let p = 0
let theta = {}
let theta' = {}
we have r|p = 0(q0(h(_1))) and
theta'(theta(l)) = theta(r|p)
so, theta(l) = 0(q0(h(_1))) is non-terminating w.r.t. R

Termination disproved by the backward process
proof stopped at iteration i=1, depth k=3
45 rule(s) generated