(ite (<= (+ x 2) 0) x 0) | (v0 x)
(+ (ite (<= (+ x 2) 0) x 0) x) | (+ (v0 x) x)
(+ (+ (ite (<= (+ x 2) 0) x 0) x) x) | (+ (+ (v0 x) x) x)
