38.062 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.031 * * * [progress]: [2/2] Setting up program.
0.034 * [progress]: [Phase 2 of 3] Improving.
0.034 * [simplify]: Simplifying:
  (/ a (- (acos a)))
0.034 * * [simplify]: Extracting # 0 : cost  0
0.034 * * [simplify]: Extracting # 1 : cost  0
0.034 * * [simplify]: Extracting # 2 : cost  0
0.034 * * [simplify]: Extracting # 3 : cost  0
0.034 * * [simplify]: Extracting # 4 : cost  0
0.035 * * [simplify]: iteration  0 :  4  enodes  (cost  5 )
0.035 * * [simplify]: Extracting # 0 : cost  0
0.035 * * [simplify]: iteration done:  4  enodes  (cost  5 )
0.035 * [simplify]: Simplified to:
  (/ a (- (acos a)))
0.036 * * [progress]: iteration 1 / 4
0.036 * * * [progress]: picking best candidate
0.038 * * * * [pick]: Picked  #<alt (λ (a) (/ a (- (acos a))))>
0.038 * * * [progress]: localizing error
0.053 * * * [progress]: generating rewritten candidates
0.053 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.065 * * * [progress]: generating series expansions
0.065 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.065 * [backup-simplify]: Simplify (/ a (- (acos a))) into (* -1 (/ a (acos a)))
0.065 * [approximate]: Taking taylor expansion of (* -1 (/ a (acos a))) in (a) around 0
0.065 * [taylor]: Taking taylor expansion of (* -1 (/ a (acos a))) in a
0.065 * [taylor]: Taking taylor expansion of -1 in a
0.066 * [backup-simplify]: Simplify -1 into -1
0.066 * [taylor]: Taking taylor expansion of (/ a (acos a)) in a
0.066 * [taylor]: Taking taylor expansion of a in a
0.066 * [backup-simplify]: Simplify 0 into 0
0.066 * [backup-simplify]: Simplify 1 into 1
0.066 * [taylor]: Taking taylor expansion of (acos a) in a
0.066 * [backup-simplify]: Simplify (acos a) into (acos a)
0.066 * [backup-simplify]: Simplify (/ 1 (acos a)) into (/ 1 (acos a))
0.066 * [taylor]: Taking taylor expansion of (* -1 (/ a (acos a))) in a
0.066 * [taylor]: Taking taylor expansion of -1 in a
0.066 * [backup-simplify]: Simplify -1 into -1
0.066 * [taylor]: Taking taylor expansion of (/ a (acos a)) in a
0.066 * [taylor]: Taking taylor expansion of a in a
0.066 * [backup-simplify]: Simplify 0 into 0
0.066 * [backup-simplify]: Simplify 1 into 1
0.066 * [taylor]: Taking taylor expansion of (acos a) in a
0.066 * [backup-simplify]: Simplify (acos a) into (acos a)
0.066 * [backup-simplify]: Simplify (/ 1 (acos a)) into (/ 1 (acos a))
0.066 * [backup-simplify]: Simplify (* -1 (/ 1 (acos a))) into (/ -1 (acos a))
0.066 * [backup-simplify]: Simplify (/ -1 (acos a)) into (/ -1 (acos a))
0.067 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))))) into 0
0.067 * [backup-simplify]: Simplify (+ (* -1 0) (* 0 (/ 1 (acos a)))) into 0
0.067 * [backup-simplify]: Simplify 0 into 0
0.068 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
0.069 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (* 0 (/ 1 (acos a))))) into 0
0.069 * [backup-simplify]: Simplify 0 into 0
0.069 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
0.070 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (acos a)))))) into 0
0.070 * [backup-simplify]: Simplify 0 into 0
0.070 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
0.071 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (acos a))))))) into 0
0.072 * [backup-simplify]: Simplify 0 into 0
0.072 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
0.073 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (acos a)))))))) into 0
0.073 * [backup-simplify]: Simplify 0 into 0
0.073 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
0.075 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (acos a))))))))) into 0
0.075 * [backup-simplify]: Simplify 0 into 0
0.075 * [backup-simplify]: Simplify (* (/ -1 (acos a)) a) into (* -1 (/ a (acos a)))
0.075 * [backup-simplify]: Simplify (/ (/ 1 a) (- (acos (/ 1 a)))) into (/ -1 (* (acos (/ 1 a)) a))
0.075 * [approximate]: Taking taylor expansion of (/ -1 (* (acos (/ 1 a)) a)) in (a) around 0
0.075 * [taylor]: Taking taylor expansion of (/ -1 (* (acos (/ 1 a)) a)) in a
0.075 * [taylor]: Taking taylor expansion of -1 in a
0.075 * [backup-simplify]: Simplify -1 into -1
0.075 * [taylor]: Taking taylor expansion of (* (acos (/ 1 a)) a) in a
0.075 * [taylor]: Taking taylor expansion of (acos (/ 1 a)) in a
0.075 * [backup-simplify]: Simplify (acos (/ 1 a)) into (acos (/ 1 a))
0.075 * [taylor]: Taking taylor expansion of a in a
0.075 * [backup-simplify]: Simplify 0 into 0
0.075 * [backup-simplify]: Simplify 1 into 1
0.075 * [backup-simplify]: Simplify (* (acos (/ 1 a)) 0) into 0
0.076 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 1) (* 0 0)) into (acos (/ 1 a))
0.076 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
0.076 * [taylor]: Taking taylor expansion of (/ -1 (* (acos (/ 1 a)) a)) in a
0.076 * [taylor]: Taking taylor expansion of -1 in a
0.076 * [backup-simplify]: Simplify -1 into -1
0.076 * [taylor]: Taking taylor expansion of (* (acos (/ 1 a)) a) in a
0.076 * [taylor]: Taking taylor expansion of (acos (/ 1 a)) in a
0.076 * [backup-simplify]: Simplify (acos (/ 1 a)) into (acos (/ 1 a))
0.076 * [taylor]: Taking taylor expansion of a in a
0.076 * [backup-simplify]: Simplify 0 into 0
0.076 * [backup-simplify]: Simplify 1 into 1
0.076 * [backup-simplify]: Simplify (* (acos (/ 1 a)) 0) into 0
0.077 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 1) (* 0 0)) into (acos (/ 1 a))
0.077 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
0.077 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
0.078 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 1) (* 0 0))) into 0
0.078 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))))) into 0
0.078 * [backup-simplify]: Simplify 0 into 0
0.079 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
0.080 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
0.080 * [backup-simplify]: Simplify 0 into 0
0.081 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))) into 0
0.081 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
0.081 * [backup-simplify]: Simplify 0 into 0
0.082 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))))) into 0
0.083 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
0.083 * [backup-simplify]: Simplify 0 into 0
0.084 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))))) into 0
0.085 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
0.085 * [backup-simplify]: Simplify 0 into 0
0.086 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))))))) into 0
0.087 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
0.087 * [backup-simplify]: Simplify 0 into 0
0.087 * [backup-simplify]: Simplify (* (/ -1 (acos (/ 1 (/ 1 a)))) (/ 1 (/ 1 a))) into (* -1 (/ a (acos a)))
0.087 * [backup-simplify]: Simplify (/ (/ 1 (- a)) (- (acos (/ 1 (- a))))) into (/ 1 (* a (acos (/ -1 a))))
0.087 * [approximate]: Taking taylor expansion of (/ 1 (* a (acos (/ -1 a)))) in (a) around 0
0.087 * [taylor]: Taking taylor expansion of (/ 1 (* a (acos (/ -1 a)))) in a
0.087 * [taylor]: Taking taylor expansion of (* a (acos (/ -1 a))) in a
0.087 * [taylor]: Taking taylor expansion of a in a
0.088 * [backup-simplify]: Simplify 0 into 0
0.088 * [backup-simplify]: Simplify 1 into 1
0.088 * [taylor]: Taking taylor expansion of (acos (/ -1 a)) in a
0.088 * [backup-simplify]: Simplify (acos (/ -1 a)) into (acos (/ -1 a))
0.088 * [backup-simplify]: Simplify (* 0 (acos (/ -1 a))) into 0
0.088 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 (acos (/ -1 a)))) into (acos (/ -1 a))
0.088 * [backup-simplify]: Simplify (/ 1 (acos (/ -1 a))) into (/ 1 (acos (/ -1 a)))
0.088 * [taylor]: Taking taylor expansion of (/ 1 (* a (acos (/ -1 a)))) in a
0.089 * [taylor]: Taking taylor expansion of (* a (acos (/ -1 a))) in a
0.089 * [taylor]: Taking taylor expansion of a in a
0.089 * [backup-simplify]: Simplify 0 into 0
0.089 * [backup-simplify]: Simplify 1 into 1
0.089 * [taylor]: Taking taylor expansion of (acos (/ -1 a)) in a
0.089 * [backup-simplify]: Simplify (acos (/ -1 a)) into (acos (/ -1 a))
0.089 * [backup-simplify]: Simplify (* 0 (acos (/ -1 a))) into 0
0.089 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 (acos (/ -1 a)))) into (acos (/ -1 a))
0.089 * [backup-simplify]: Simplify (/ 1 (acos (/ -1 a))) into (/ 1 (acos (/ -1 a)))
0.090 * [backup-simplify]: Simplify (/ 1 (acos (/ -1 a))) into (/ 1 (acos (/ -1 a)))
0.090 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (acos (/ -1 a))))) into 0
0.091 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))))) into 0
0.091 * [backup-simplify]: Simplify 0 into 0
0.092 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))) into 0
0.092 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
0.092 * [backup-simplify]: Simplify 0 into 0
0.094 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a))))))) into 0
0.094 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
0.094 * [backup-simplify]: Simplify 0 into 0
0.096 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))))) into 0
0.096 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
0.096 * [backup-simplify]: Simplify 0 into 0
0.098 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a))))))))) into 0
0.099 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
0.099 * [backup-simplify]: Simplify 0 into 0
0.101 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))))))) into 0
0.102 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
0.102 * [backup-simplify]: Simplify 0 into 0
0.102 * [backup-simplify]: Simplify (* (/ 1 (acos (/ -1 (/ 1 (- a))))) (/ 1 (/ 1 (- a)))) into (* -1 (/ a (acos a)))
0.102 * * * [progress]: simplifying candidates
0.104 * [simplify]: Simplifying:
  (expm1 (/ a (- (acos a))))
  (log1p (/ a (- (acos a))))
  (- (log a) (log (- (acos a))))
  (log (/ a (- (acos a))))
  (exp (/ a (- (acos a))))
  (/ (* (* a a) a) (* (* (- (acos a)) (- (acos a))) (- (acos a))))
  (* (cbrt (/ a (- (acos a)))) (cbrt (/ a (- (acos a)))))
  (cbrt (/ a (- (acos a))))
  (* (* (/ a (- (acos a))) (/ a (- (acos a)))) (/ a (- (acos a))))
  (sqrt (/ a (- (acos a))))
  (sqrt (/ a (- (acos a))))
  (- a)
  (- (- (acos a)))
  (/ (* (cbrt a) (cbrt a)) (* (cbrt (- (acos a))) (cbrt (- (acos a)))))
  (/ (cbrt a) (cbrt (- (acos a))))
  (/ (* (cbrt a) (cbrt a)) (sqrt (- (acos a))))
  (/ (cbrt a) (sqrt (- (acos a))))
  (/ (* (cbrt a) (cbrt a)) 1)
  (/ (cbrt a) (- (acos a)))
  (/ (* (cbrt a) (cbrt a)) -1)
  (/ (cbrt a) (acos a))
  (/ (* (cbrt a) (cbrt a)) (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (/ (cbrt a) (cbrt (acos a)))
  (/ (* (cbrt a) (cbrt a)) (- (sqrt (acos a))))
  (/ (cbrt a) (sqrt (acos a)))
  (/ (* (cbrt a) (cbrt a)) (- 1))
  (/ (cbrt a) (acos a))
  (/ (* (cbrt a) (cbrt a)) (* (cbrt (acos a)) (cbrt (acos a))))
  (/ (cbrt a) (- (cbrt (acos a))))
  (/ (* (cbrt a) (cbrt a)) (sqrt (acos a)))
  (/ (cbrt a) (- (sqrt (acos a))))
  (/ (* (cbrt a) (cbrt a)) 1)
  (/ (cbrt a) (- (acos a)))
  (/ (sqrt a) (* (cbrt (- (acos a))) (cbrt (- (acos a)))))
  (/ (sqrt a) (cbrt (- (acos a))))
  (/ (sqrt a) (sqrt (- (acos a))))
  (/ (sqrt a) (sqrt (- (acos a))))
  (/ (sqrt a) 1)
  (/ (sqrt a) (- (acos a)))
  (/ (sqrt a) -1)
  (/ (sqrt a) (acos a))
  (/ (sqrt a) (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (/ (sqrt a) (cbrt (acos a)))
  (/ (sqrt a) (- (sqrt (acos a))))
  (/ (sqrt a) (sqrt (acos a)))
  (/ (sqrt a) (- 1))
  (/ (sqrt a) (acos a))
  (/ (sqrt a) (* (cbrt (acos a)) (cbrt (acos a))))
  (/ (sqrt a) (- (cbrt (acos a))))
  (/ (sqrt a) (sqrt (acos a)))
  (/ (sqrt a) (- (sqrt (acos a))))
  (/ (sqrt a) 1)
  (/ (sqrt a) (- (acos a)))
  (/ 1 (* (cbrt (- (acos a))) (cbrt (- (acos a)))))
  (/ a (cbrt (- (acos a))))
  (/ 1 (sqrt (- (acos a))))
  (/ a (sqrt (- (acos a))))
  (/ 1 1)
  (/ a (- (acos a)))
  (/ 1 -1)
  (/ a (acos a))
  (/ 1 (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (/ a (cbrt (acos a)))
  (/ 1 (- (sqrt (acos a))))
  (/ a (sqrt (acos a)))
  (/ 1 (- 1))
  (/ a (acos a))
  (/ 1 (* (cbrt (acos a)) (cbrt (acos a))))
  (/ a (- (cbrt (acos a))))
  (/ 1 (sqrt (acos a)))
  (/ a (- (sqrt (acos a))))
  (/ 1 1)
  (/ a (- (acos a)))
  (/ 1 (- (acos a)))
  (/ (- (acos a)) a)
  (/ a (* (cbrt (- (acos a))) (cbrt (- (acos a)))))
  (/ a (sqrt (- (acos a))))
  (/ a 1)
  (/ a -1)
  (/ a (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (/ a (- (sqrt (acos a))))
  (/ a (- 1))
  (/ a (* (cbrt (acos a)) (cbrt (acos a))))
  (/ a (sqrt (acos a)))
  (/ a 1)
  (/ (- (acos a)) (cbrt a))
  (/ (- (acos a)) (sqrt a))
  (/ (- (acos a)) a)
  (* -1 (/ a (acos a)))
  (* -1 (/ a (acos a)))
  (* -1 (/ a (acos a)))
0.106 * * [simplify]: Extracting # 0 : cost  0
0.106 * * [simplify]: Extracting # 1 : cost  0
0.106 * * [simplify]: Extracting # 2 : cost  0
0.106 * * [simplify]: Extracting # 3 : cost  0
0.106 * * [simplify]: Extracting # 4 : cost  0
0.107 * * [simplify]: iteration  0 :  96  enodes  (cost  613 )
0.140 * * [simplify]: Extracting # 0 : cost  0
0.140 * * [simplify]: Extracting # 1 : cost  0
0.140 * * [simplify]: Extracting # 2 : cost  0
0.140 * * [simplify]: Extracting # 3 : cost  0
0.141 * * [simplify]: iteration  1 :  166  enodes  (cost  581 )
0.194 * * [simplify]: Extracting # 0 : cost  0
0.194 * * [simplify]: Extracting # 1 : cost  0
0.195 * * [simplify]: Extracting # 2 : cost  0
0.195 * * [simplify]: Extracting # 3 : cost  0
0.196 * * [simplify]: Extracting # 4 : cost  0
0.196 * * [simplify]: iteration  2 :  333  enodes  (cost  563 )
0.305 * * [simplify]: Extracting # 0 : cost  0
0.306 * * [simplify]: Extracting # 1 : cost  0
0.307 * * [simplify]: Extracting # 2 : cost  0
0.308 * * [simplify]: Extracting # 3 : cost  0
0.309 * * [simplify]: Extracting # 4 : cost  0
0.310 * * [simplify]: iteration  3 :  587  enodes  (cost  563 )
0.604 * * [simplify]: Extracting # 0 : cost  0
0.606 * * [simplify]: Extracting # 1 : cost  0
0.608 * * [simplify]: Extracting # 2 : cost  0
0.609 * * [simplify]: Extracting # 3 : cost  0
0.611 * * [simplify]: Extracting # 4 : cost  0
0.613 * * [simplify]: iteration  4 :  1105  enodes  (cost  563 )
1.786 * * [simplify]: Extracting # 0 : cost  0
1.790 * * [simplify]: Extracting # 1 : cost  0
1.792 * * [simplify]: Extracting # 2 : cost  0
1.795 * * [simplify]: Extracting # 3 : cost  0
1.797 * * [simplify]: Extracting # 4 : cost  0
1.799 * * [simplify]: iteration  5 :  2150  enodes  (cost  558 )
4.304 * * [simplify]: Extracting # 0 : cost  0
4.309 * * [simplify]: Extracting # 1 : cost  0
4.314 * * [simplify]: Extracting # 2 : cost  0
4.319 * * [simplify]: Extracting # 3 : cost  0
4.323 * * [simplify]: Extracting # 4 : cost  0
4.329 * * [simplify]: iteration done:  5001  enodes  (cost  558 )
4.329 * [simplify]: Simplified to:
  (expm1 (/ a (- (acos a))))
  (log1p (/ a (- (acos a))))
  (log (/ a (- (acos a))))
  (log (/ a (- (acos a))))
  (exp (/ a (- (acos a))))
  (pow (/ a (- (acos a))) 3)
  (* (cbrt (/ a (- (acos a)))) (cbrt (/ a (- (acos a)))))
  (cbrt (/ a (- (acos a))))
  (pow (/ a (- (acos a))) 3)
  (sqrt (/ a (- (acos a))))
  (sqrt (/ a (- (acos a))))
  (- a)
  (acos a)
  (/ (* (cbrt a) (cbrt a)) (* (cbrt (- (acos a))) (cbrt (- (acos a)))))
  (/ (cbrt a) (cbrt (- (acos a))))
  (/ (* (cbrt a) (cbrt a)) (sqrt (- (acos a))))
  (/ (cbrt a) (sqrt (- (acos a))))
  (* (cbrt a) (cbrt a))
  (/ (cbrt a) (- (acos a)))
  (/ (* (cbrt a) (cbrt a)) -1)
  (/ (cbrt a) (acos a))
  (/ (* (cbrt a) (cbrt a)) (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (/ (cbrt a) (cbrt (acos a)))
  (/ (* (cbrt a) (cbrt a)) (- (sqrt (acos a))))
  (/ (cbrt a) (sqrt (acos a)))
  (/ (* (cbrt a) (cbrt a)) -1)
  (/ (cbrt a) (acos a))
  (/ (* (cbrt a) (cbrt a)) (* (cbrt (acos a)) (cbrt (acos a))))
  (/ (cbrt a) (- (cbrt (acos a))))
  (/ (* (cbrt a) (cbrt a)) (sqrt (acos a)))
  (/ (cbrt a) (- (sqrt (acos a))))
  (* (cbrt a) (cbrt a))
  (/ (cbrt a) (- (acos a)))
  (/ (sqrt a) (* (cbrt (- (acos a))) (cbrt (- (acos a)))))
  (/ (sqrt a) (cbrt (- (acos a))))
  (/ (sqrt a) (sqrt (- (acos a))))
  (/ (sqrt a) (sqrt (- (acos a))))
  (sqrt a)
  (/ (sqrt a) (- (acos a)))
  (/ (sqrt a) -1)
  (/ (sqrt a) (acos a))
  (/ (sqrt a) (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (/ (sqrt a) (cbrt (acos a)))
  (/ (sqrt a) (- (sqrt (acos a))))
  (/ (sqrt a) (sqrt (acos a)))
  (/ (sqrt a) -1)
  (/ (sqrt a) (acos a))
  (/ (sqrt a) (* (cbrt (acos a)) (cbrt (acos a))))
  (/ (sqrt a) (- (cbrt (acos a))))
  (/ (sqrt a) (sqrt (acos a)))
  (/ (sqrt a) (- (sqrt (acos a))))
  (sqrt a)
  (/ (sqrt a) (- (acos a)))
  (/ 1 (* (cbrt (- (acos a))) (cbrt (- (acos a)))))
  (/ a (cbrt (- (acos a))))
  (/ 1 (sqrt (- (acos a))))
  (/ a (sqrt (- (acos a))))
  1
  (/ a (- (acos a)))
  -1
  (/ a (acos a))
  (/ (/ -1 (cbrt (acos a))) (cbrt (acos a)))
  (/ a (cbrt (acos a)))
  (/ -1 (sqrt (acos a)))
  (/ a (sqrt (acos a)))
  -1
  (/ a (acos a))
  (/ 1 (* (cbrt (acos a)) (cbrt (acos a))))
  (/ a (- (cbrt (acos a))))
  (/ 1 (sqrt (acos a)))
  (/ a (- (sqrt (acos a))))
  1
  (/ a (- (acos a)))
  (/ -1 (acos a))
  (- (/ (acos a) a))
  (/ a (* (cbrt (- (acos a))) (cbrt (- (acos a)))))
  (/ a (sqrt (- (acos a))))
  a
  (- a)
  (/ a (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (/ a (- (sqrt (acos a))))
  (- a)
  (/ a (* (cbrt (acos a)) (cbrt (acos a))))
  (/ a (sqrt (acos a)))
  a
  (/ (- (acos a)) (cbrt a))
  (/ (- (acos a)) (sqrt a))
  (- (/ (acos a) a))
  (/ a (- (acos a)))
  (/ a (- (acos a)))
  (/ a (- (acos a)))
4.330 * * * [progress]: adding candidates to table
4.436 * * [progress]: iteration 2 / 4
4.436 * * * [progress]: picking best candidate
4.450 * * * * [pick]: Picked  #<alt (λ (a) (* a (/ -1 (acos a))))>
4.450 * * * [progress]: localizing error
4.456 * * * [progress]: generating rewritten candidates
4.456 * * * * [progress]: [ 1 / 2 ] rewriting at (2)
4.474 * * * * [progress]: [ 2 / 2 ] rewriting at (2 2)
4.481 * * * [progress]: generating series expansions
4.481 * * * * [progress]: [ 1 / 2 ] generating series at (2)
4.482 * [backup-simplify]: Simplify (* a (/ -1 (acos a))) into (* -1 (/ a (acos a)))
4.482 * [approximate]: Taking taylor expansion of (* -1 (/ a (acos a))) in (a) around 0
4.482 * [taylor]: Taking taylor expansion of (* -1 (/ a (acos a))) in a
4.482 * [taylor]: Taking taylor expansion of -1 in a
4.482 * [backup-simplify]: Simplify -1 into -1
4.482 * [taylor]: Taking taylor expansion of (/ a (acos a)) in a
4.482 * [taylor]: Taking taylor expansion of a in a
4.482 * [backup-simplify]: Simplify 0 into 0
4.482 * [backup-simplify]: Simplify 1 into 1
4.482 * [taylor]: Taking taylor expansion of (acos a) in a
4.482 * [backup-simplify]: Simplify (acos a) into (acos a)
4.482 * [backup-simplify]: Simplify (/ 1 (acos a)) into (/ 1 (acos a))
4.482 * [taylor]: Taking taylor expansion of (* -1 (/ a (acos a))) in a
4.482 * [taylor]: Taking taylor expansion of -1 in a
4.482 * [backup-simplify]: Simplify -1 into -1
4.482 * [taylor]: Taking taylor expansion of (/ a (acos a)) in a
4.482 * [taylor]: Taking taylor expansion of a in a
4.482 * [backup-simplify]: Simplify 0 into 0
4.482 * [backup-simplify]: Simplify 1 into 1
4.482 * [taylor]: Taking taylor expansion of (acos a) in a
4.482 * [backup-simplify]: Simplify (acos a) into (acos a)
4.482 * [backup-simplify]: Simplify (/ 1 (acos a)) into (/ 1 (acos a))
4.482 * [backup-simplify]: Simplify (* -1 (/ 1 (acos a))) into (/ -1 (acos a))
4.482 * [backup-simplify]: Simplify (/ -1 (acos a)) into (/ -1 (acos a))
4.482 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))))) into 0
4.483 * [backup-simplify]: Simplify (+ (* -1 0) (* 0 (/ 1 (acos a)))) into 0
4.483 * [backup-simplify]: Simplify 0 into 0
4.483 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
4.484 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (* 0 (/ 1 (acos a))))) into 0
4.484 * [backup-simplify]: Simplify 0 into 0
4.484 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
4.485 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (acos a)))))) into 0
4.485 * [backup-simplify]: Simplify 0 into 0
4.485 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
4.486 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (acos a))))))) into 0
4.486 * [backup-simplify]: Simplify 0 into 0
4.487 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
4.488 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (acos a)))))))) into 0
4.488 * [backup-simplify]: Simplify 0 into 0
4.488 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
4.490 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (acos a))))))))) into 0
4.490 * [backup-simplify]: Simplify 0 into 0
4.490 * [backup-simplify]: Simplify (* (/ -1 (acos a)) a) into (* -1 (/ a (acos a)))
4.490 * [backup-simplify]: Simplify (* (/ 1 a) (/ -1 (acos (/ 1 a)))) into (/ -1 (* (acos (/ 1 a)) a))
4.490 * [approximate]: Taking taylor expansion of (/ -1 (* (acos (/ 1 a)) a)) in (a) around 0
4.490 * [taylor]: Taking taylor expansion of (/ -1 (* (acos (/ 1 a)) a)) in a
4.490 * [taylor]: Taking taylor expansion of -1 in a
4.490 * [backup-simplify]: Simplify -1 into -1
4.490 * [taylor]: Taking taylor expansion of (* (acos (/ 1 a)) a) in a
4.490 * [taylor]: Taking taylor expansion of (acos (/ 1 a)) in a
4.490 * [backup-simplify]: Simplify (acos (/ 1 a)) into (acos (/ 1 a))
4.490 * [taylor]: Taking taylor expansion of a in a
4.490 * [backup-simplify]: Simplify 0 into 0
4.490 * [backup-simplify]: Simplify 1 into 1
4.490 * [backup-simplify]: Simplify (* (acos (/ 1 a)) 0) into 0
4.491 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 1) (* 0 0)) into (acos (/ 1 a))
4.491 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
4.491 * [taylor]: Taking taylor expansion of (/ -1 (* (acos (/ 1 a)) a)) in a
4.491 * [taylor]: Taking taylor expansion of -1 in a
4.491 * [backup-simplify]: Simplify -1 into -1
4.491 * [taylor]: Taking taylor expansion of (* (acos (/ 1 a)) a) in a
4.491 * [taylor]: Taking taylor expansion of (acos (/ 1 a)) in a
4.491 * [backup-simplify]: Simplify (acos (/ 1 a)) into (acos (/ 1 a))
4.491 * [taylor]: Taking taylor expansion of a in a
4.491 * [backup-simplify]: Simplify 0 into 0
4.491 * [backup-simplify]: Simplify 1 into 1
4.491 * [backup-simplify]: Simplify (* (acos (/ 1 a)) 0) into 0
4.492 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 1) (* 0 0)) into (acos (/ 1 a))
4.492 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
4.492 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
4.492 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 1) (* 0 0))) into 0
4.492 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))))) into 0
4.493 * [backup-simplify]: Simplify 0 into 0
4.493 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
4.493 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
4.493 * [backup-simplify]: Simplify 0 into 0
4.494 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))) into 0
4.494 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
4.494 * [backup-simplify]: Simplify 0 into 0
4.495 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))))) into 0
4.495 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
4.495 * [backup-simplify]: Simplify 0 into 0
4.496 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))))) into 0
4.497 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
4.497 * [backup-simplify]: Simplify 0 into 0
4.498 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))))))) into 0
4.498 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
4.498 * [backup-simplify]: Simplify 0 into 0
4.498 * [backup-simplify]: Simplify (* (/ -1 (acos (/ 1 (/ 1 a)))) (/ 1 (/ 1 a))) into (* -1 (/ a (acos a)))
4.498 * [backup-simplify]: Simplify (* (/ 1 (- a)) (/ -1 (acos (/ 1 (- a))))) into (/ 1 (* a (acos (/ -1 a))))
4.498 * [approximate]: Taking taylor expansion of (/ 1 (* a (acos (/ -1 a)))) in (a) around 0
4.498 * [taylor]: Taking taylor expansion of (/ 1 (* a (acos (/ -1 a)))) in a
4.499 * [taylor]: Taking taylor expansion of (* a (acos (/ -1 a))) in a
4.499 * [taylor]: Taking taylor expansion of a in a
4.499 * [backup-simplify]: Simplify 0 into 0
4.499 * [backup-simplify]: Simplify 1 into 1
4.499 * [taylor]: Taking taylor expansion of (acos (/ -1 a)) in a
4.499 * [backup-simplify]: Simplify (acos (/ -1 a)) into (acos (/ -1 a))
4.499 * [backup-simplify]: Simplify (* 0 (acos (/ -1 a))) into 0
4.499 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 (acos (/ -1 a)))) into (acos (/ -1 a))
4.499 * [backup-simplify]: Simplify (/ 1 (acos (/ -1 a))) into (/ 1 (acos (/ -1 a)))
4.499 * [taylor]: Taking taylor expansion of (/ 1 (* a (acos (/ -1 a)))) in a
4.499 * [taylor]: Taking taylor expansion of (* a (acos (/ -1 a))) in a
4.499 * [taylor]: Taking taylor expansion of a in a
4.499 * [backup-simplify]: Simplify 0 into 0
4.499 * [backup-simplify]: Simplify 1 into 1
4.499 * [taylor]: Taking taylor expansion of (acos (/ -1 a)) in a
4.499 * [backup-simplify]: Simplify (acos (/ -1 a)) into (acos (/ -1 a))
4.499 * [backup-simplify]: Simplify (* 0 (acos (/ -1 a))) into 0
4.500 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 (acos (/ -1 a)))) into (acos (/ -1 a))
4.500 * [backup-simplify]: Simplify (/ 1 (acos (/ -1 a))) into (/ 1 (acos (/ -1 a)))
4.500 * [backup-simplify]: Simplify (/ 1 (acos (/ -1 a))) into (/ 1 (acos (/ -1 a)))
4.501 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (acos (/ -1 a))))) into 0
4.501 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))))) into 0
4.501 * [backup-simplify]: Simplify 0 into 0
4.502 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))) into 0
4.502 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
4.502 * [backup-simplify]: Simplify 0 into 0
4.503 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a))))))) into 0
4.503 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
4.503 * [backup-simplify]: Simplify 0 into 0
4.504 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))))) into 0
4.505 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
4.505 * [backup-simplify]: Simplify 0 into 0
4.506 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a))))))))) into 0
4.507 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
4.507 * [backup-simplify]: Simplify 0 into 0
4.508 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))))))) into 0
4.509 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
4.509 * [backup-simplify]: Simplify 0 into 0
4.509 * [backup-simplify]: Simplify (* (/ 1 (acos (/ -1 (/ 1 (- a))))) (/ 1 (/ 1 (- a)))) into (* -1 (/ a (acos a)))
4.509 * * * * [progress]: [ 2 / 2 ] generating series at (2 2)
4.509 * [backup-simplify]: Simplify (/ -1 (acos a)) into (/ -1 (acos a))
4.509 * [approximate]: Taking taylor expansion of (/ -1 (acos a)) in (a) around 0
4.509 * [taylor]: Taking taylor expansion of (/ -1 (acos a)) in a
4.509 * [taylor]: Taking taylor expansion of -1 in a
4.509 * [backup-simplify]: Simplify -1 into -1
4.509 * [taylor]: Taking taylor expansion of (acos a) in a
4.509 * [backup-simplify]: Simplify (acos a) into (acos a)
4.509 * [backup-simplify]: Simplify (/ -1 (acos a)) into (/ -1 (acos a))
4.509 * [taylor]: Taking taylor expansion of (/ -1 (acos a)) in a
4.509 * [taylor]: Taking taylor expansion of -1 in a
4.509 * [backup-simplify]: Simplify -1 into -1
4.509 * [taylor]: Taking taylor expansion of (acos a) in a
4.509 * [backup-simplify]: Simplify (acos a) into (acos a)
4.509 * [backup-simplify]: Simplify (/ -1 (acos a)) into (/ -1 (acos a))
4.509 * [backup-simplify]: Simplify (/ -1 (acos a)) into (/ -1 (acos a))
4.509 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ -1 (acos a)) (/ 0 (acos a))))) into 0
4.510 * [backup-simplify]: Simplify 0 into 0
4.510 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ -1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
4.510 * [backup-simplify]: Simplify 0 into 0
4.510 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ -1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
4.510 * [backup-simplify]: Simplify 0 into 0
4.510 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ -1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
4.510 * [backup-simplify]: Simplify 0 into 0
4.510 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ -1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
4.511 * [backup-simplify]: Simplify 0 into 0
4.511 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ -1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
4.511 * [backup-simplify]: Simplify 0 into 0
4.511 * [backup-simplify]: Simplify (/ -1 (acos a)) into (/ -1 (acos a))
4.511 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
4.511 * [approximate]: Taking taylor expansion of (/ -1 (acos (/ 1 a))) in (a) around 0
4.511 * [taylor]: Taking taylor expansion of (/ -1 (acos (/ 1 a))) in a
4.511 * [taylor]: Taking taylor expansion of -1 in a
4.511 * [backup-simplify]: Simplify -1 into -1
4.511 * [taylor]: Taking taylor expansion of (acos (/ 1 a)) in a
4.511 * [backup-simplify]: Simplify (acos (/ 1 a)) into (acos (/ 1 a))
4.511 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
4.511 * [taylor]: Taking taylor expansion of (/ -1 (acos (/ 1 a))) in a
4.511 * [taylor]: Taking taylor expansion of -1 in a
4.511 * [backup-simplify]: Simplify -1 into -1
4.511 * [taylor]: Taking taylor expansion of (acos (/ 1 a)) in a
4.511 * [backup-simplify]: Simplify (acos (/ 1 a)) into (acos (/ 1 a))
4.511 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
4.511 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
4.512 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))))) into 0
4.512 * [backup-simplify]: Simplify 0 into 0
4.512 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
4.512 * [backup-simplify]: Simplify 0 into 0
4.512 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
4.512 * [backup-simplify]: Simplify 0 into 0
4.512 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
4.513 * [backup-simplify]: Simplify 0 into 0
4.513 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
4.513 * [backup-simplify]: Simplify 0 into 0
4.513 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
4.513 * [backup-simplify]: Simplify 0 into 0
4.513 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 (/ 1 a)))) into (/ -1 (acos a))
4.513 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 (- a)))) into (/ -1 (acos (/ -1 a)))
4.513 * [approximate]: Taking taylor expansion of (/ -1 (acos (/ -1 a))) in (a) around 0
4.514 * [taylor]: Taking taylor expansion of (/ -1 (acos (/ -1 a))) in a
4.514 * [taylor]: Taking taylor expansion of -1 in a
4.514 * [backup-simplify]: Simplify -1 into -1
4.514 * [taylor]: Taking taylor expansion of (acos (/ -1 a)) in a
4.514 * [backup-simplify]: Simplify (acos (/ -1 a)) into (acos (/ -1 a))
4.514 * [backup-simplify]: Simplify (/ -1 (acos (/ -1 a))) into (/ -1 (acos (/ -1 a)))
4.514 * [taylor]: Taking taylor expansion of (/ -1 (acos (/ -1 a))) in a
4.514 * [taylor]: Taking taylor expansion of -1 in a
4.514 * [backup-simplify]: Simplify -1 into -1
4.514 * [taylor]: Taking taylor expansion of (acos (/ -1 a)) in a
4.514 * [backup-simplify]: Simplify (acos (/ -1 a)) into (acos (/ -1 a))
4.514 * [backup-simplify]: Simplify (/ -1 (acos (/ -1 a))) into (/ -1 (acos (/ -1 a)))
4.514 * [backup-simplify]: Simplify (/ -1 (acos (/ -1 a))) into (/ -1 (acos (/ -1 a)))
4.514 * [backup-simplify]: Simplify (- (/ 0 (acos (/ -1 a))) (+ (* (/ -1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))))) into 0
4.514 * [backup-simplify]: Simplify 0 into 0
4.514 * [backup-simplify]: Simplify (- (/ 0 (acos (/ -1 a))) (+ (* (/ -1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
4.514 * [backup-simplify]: Simplify 0 into 0
4.515 * [backup-simplify]: Simplify (- (/ 0 (acos (/ -1 a))) (+ (* (/ -1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
4.515 * [backup-simplify]: Simplify 0 into 0
4.515 * [backup-simplify]: Simplify (- (/ 0 (acos (/ -1 a))) (+ (* (/ -1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
4.515 * [backup-simplify]: Simplify 0 into 0
4.515 * [backup-simplify]: Simplify (- (/ 0 (acos (/ -1 a))) (+ (* (/ -1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
4.515 * [backup-simplify]: Simplify 0 into 0
4.516 * [backup-simplify]: Simplify (- (/ 0 (acos (/ -1 a))) (+ (* (/ -1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
4.516 * [backup-simplify]: Simplify 0 into 0
4.516 * [backup-simplify]: Simplify (/ -1 (acos (/ -1 (/ 1 (- a))))) into (/ -1 (acos a))
4.516 * * * [progress]: simplifying candidates
4.517 * [simplify]: Simplifying:
  (expm1 (* a (/ -1 (acos a))))
  (log1p (* a (/ -1 (acos a))))
  (* a (/ -1 (acos a)))
  (+ (log a) (- (log -1) (log (acos a))))
  (+ (log a) (log (/ -1 (acos a))))
  (log (* a (/ -1 (acos a))))
  (exp (* a (/ -1 (acos a))))
  (* (* (* a a) a) (/ (* (* -1 -1) -1) (* (* (acos a) (acos a)) (acos a))))
  (* (* (* a a) a) (* (* (/ -1 (acos a)) (/ -1 (acos a))) (/ -1 (acos a))))
  (* (cbrt (* a (/ -1 (acos a)))) (cbrt (* a (/ -1 (acos a)))))
  (cbrt (* a (/ -1 (acos a))))
  (* (* (* a (/ -1 (acos a))) (* a (/ -1 (acos a)))) (* a (/ -1 (acos a))))
  (sqrt (* a (/ -1 (acos a))))
  (sqrt (* a (/ -1 (acos a))))
  (* (sqrt a) (sqrt (/ -1 (acos a))))
  (* (sqrt a) (sqrt (/ -1 (acos a))))
  (* (sqrt a) (/ (sqrt -1) (sqrt (acos a))))
  (* (sqrt a) (/ (sqrt -1) (sqrt (acos a))))
  (* a (* (cbrt (/ -1 (acos a))) (cbrt (/ -1 (acos a)))))
  (* a (sqrt (/ -1 (acos a))))
  (* a (/ (* (cbrt -1) (cbrt -1)) (* (cbrt (acos a)) (cbrt (acos a)))))
  (* a (/ (* (cbrt -1) (cbrt -1)) (sqrt (acos a))))
  (* a (/ (* (cbrt -1) (cbrt -1)) 1))
  (* a (/ (sqrt -1) (* (cbrt (acos a)) (cbrt (acos a)))))
  (* a (/ (sqrt -1) (sqrt (acos a))))
  (* a (/ (sqrt -1) 1))
  (* a (/ 1 (* (cbrt (acos a)) (cbrt (acos a)))))
  (* a (/ 1 (sqrt (acos a))))
  (* a (/ 1 1))
  (* a 1)
  (* a -1)
  (* (cbrt a) (/ -1 (acos a)))
  (* (sqrt a) (/ -1 (acos a)))
  (* a (/ -1 (acos a)))
  (* a -1)
  (expm1 (/ -1 (acos a)))
  (log1p (/ -1 (acos a)))
  (- (log -1) (log (acos a)))
  (log (/ -1 (acos a)))
  (exp (/ -1 (acos a)))
  (/ (* (* -1 -1) -1) (* (* (acos a) (acos a)) (acos a)))
  (* (cbrt (/ -1 (acos a))) (cbrt (/ -1 (acos a))))
  (cbrt (/ -1 (acos a)))
  (* (* (/ -1 (acos a)) (/ -1 (acos a))) (/ -1 (acos a)))
  (sqrt (/ -1 (acos a)))
  (sqrt (/ -1 (acos a)))
  (- -1)
  (- (acos a))
  (/ (* (cbrt -1) (cbrt -1)) (* (cbrt (acos a)) (cbrt (acos a))))
  (/ (cbrt -1) (cbrt (acos a)))
  (/ (* (cbrt -1) (cbrt -1)) (sqrt (acos a)))
  (/ (cbrt -1) (sqrt (acos a)))
  (/ (* (cbrt -1) (cbrt -1)) 1)
  (/ (cbrt -1) (acos a))
  (/ (sqrt -1) (* (cbrt (acos a)) (cbrt (acos a))))
  (/ (sqrt -1) (cbrt (acos a)))
  (/ (sqrt -1) (sqrt (acos a)))
  (/ (sqrt -1) (sqrt (acos a)))
  (/ (sqrt -1) 1)
  (/ (sqrt -1) (acos a))
  (/ 1 (* (cbrt (acos a)) (cbrt (acos a))))
  (/ -1 (cbrt (acos a)))
  (/ 1 (sqrt (acos a)))
  (/ -1 (sqrt (acos a)))
  (/ 1 1)
  (/ -1 (acos a))
  (/ 1 (acos a))
  (/ (acos a) -1)
  (/ -1 (* (cbrt (acos a)) (cbrt (acos a))))
  (/ -1 (sqrt (acos a)))
  (/ -1 1)
  (/ (acos a) (cbrt -1))
  (/ (acos a) (sqrt -1))
  (/ (acos a) -1)
  (* -1 (/ a (acos a)))
  (* -1 (/ a (acos a)))
  (* -1 (/ a (acos a)))
  (/ -1 (acos a))
  (/ -1 (acos a))
  (/ -1 (acos a))
4.518 * * [simplify]: Extracting # 0 : cost  0
4.518 * * [simplify]: Extracting # 1 : cost  0
4.518 * * [simplify]: Extracting # 2 : cost  0
4.518 * * [simplify]: Extracting # 3 : cost  0
4.518 * * [simplify]: Extracting # 4 : cost  0
4.518 * * [simplify]: Extracting # 5 : cost  0
4.519 * * [simplify]: iteration  0 :  90  enodes  (cost  582 )
4.542 * * [simplify]: Extracting # 0 : cost  0
4.543 * * [simplify]: Extracting # 1 : cost  0
4.543 * * [simplify]: Extracting # 2 : cost  0
4.543 * * [simplify]: iteration  1 :  184  enodes  (cost  532 )
4.600 * * [simplify]: Extracting # 0 : cost  0
4.601 * * [simplify]: Extracting # 1 : cost  0
4.601 * * [simplify]: Extracting # 2 : cost  0
4.602 * * [simplify]: Extracting # 3 : cost  0
4.602 * * [simplify]: Extracting # 4 : cost  0
4.603 * * [simplify]: Extracting # 5 : cost  0
4.603 * * [simplify]: iteration  2 :  512  enodes  (cost  482 )
5.052 * * [simplify]: Extracting # 0 : cost  0
5.054 * * [simplify]: Extracting # 1 : cost  0
5.056 * * [simplify]: Extracting # 2 : cost  0
5.057 * * [simplify]: Extracting # 3 : cost  0
5.058 * * [simplify]: Extracting # 4 : cost  0
5.059 * * [simplify]: iteration  3 :  1392  enodes  (cost  480 )
8.446 * * [simplify]: Extracting # 0 : cost  0
8.451 * * [simplify]: Extracting # 1 : cost  0
8.454 * * [simplify]: Extracting # 2 : cost  0
8.456 * * [simplify]: Extracting # 3 : cost  0
8.459 * * [simplify]: Extracting # 4 : cost  0
8.461 * * [simplify]: iteration  4 :  3526  enodes  (cost  480 )
10.111 * * [simplify]: Extracting # 0 : cost  0
10.116 * * [simplify]: Extracting # 1 : cost  0
10.120 * * [simplify]: Extracting # 2 : cost  0
10.125 * * [simplify]: iteration done:  5000  enodes  (cost  480 )
10.125 * [simplify]: Simplified to:
  (expm1 (- (/ a (acos a))))
  (log1p (- (/ a (acos a))))
  (/ (- a) (acos a))
  (log (- (/ a (acos a))))
  (log (- (/ a (acos a))))
  (log (- (/ a (acos a))))
  (exp (- (/ a (acos a))))
  (pow (- (/ a (acos a))) 3)
  (pow (- (/ a (acos a))) 3)
  (* (cbrt (- (/ a (acos a)))) (cbrt (- (/ a (acos a)))))
  (cbrt (- (/ a (acos a))))
  (pow (- (/ a (acos a))) 3)
  (sqrt (- (/ a (acos a))))
  (sqrt (- (/ a (acos a))))
  (* (sqrt a) (sqrt (/ -1 (acos a))))
  (* (sqrt a) (sqrt (/ -1 (acos a))))
  (* (sqrt a) (/ (sqrt -1) (sqrt (acos a))))
  (* (sqrt a) (/ (sqrt -1) (sqrt (acos a))))
  (* a (* (cbrt (/ -1 (acos a))) (cbrt (/ -1 (acos a)))))
  (* a (sqrt (/ -1 (acos a))))
  (* a (/ (* (cbrt -1) (cbrt -1)) (* (cbrt (acos a)) (cbrt (acos a)))))
  (* a (/ (* (cbrt -1) (cbrt -1)) (sqrt (acos a))))
  (* a (* (cbrt -1) (cbrt -1)))
  (* a (/ (sqrt -1) (* (cbrt (acos a)) (cbrt (acos a)))))
  (* a (/ (sqrt -1) (sqrt (acos a))))
  (* (sqrt -1) a)
  (/ a (* (cbrt (acos a)) (cbrt (acos a))))
  (/ a (sqrt (acos a)))
  a
  a
  (- a)
  (/ (- (cbrt a)) (acos a))
  (/ (- (sqrt a)) (acos a))
  (/ (- a) (acos a))
  (- a)
  (expm1 (/ -1 (acos a)))
  (log1p (/ -1 (acos a)))
  (log (/ -1 (acos a)))
  (log (/ -1 (acos a)))
  (exp (/ -1 (acos a)))
  (pow (/ -1 (acos a)) 3)
  (* (cbrt (/ -1 (acos a))) (cbrt (/ -1 (acos a))))
  (cbrt (/ -1 (acos a)))
  (pow (/ -1 (acos a)) 3)
  (sqrt (/ -1 (acos a)))
  (sqrt (/ -1 (acos a)))
  1
  (- (acos a))
  (/ (* (cbrt -1) (cbrt -1)) (* (cbrt (acos a)) (cbrt (acos a))))
  (/ (cbrt -1) (cbrt (acos a)))
  (/ (* (cbrt -1) (cbrt -1)) (sqrt (acos a)))
  (/ (cbrt -1) (sqrt (acos a)))
  (* (cbrt -1) (cbrt -1))
  (/ (cbrt -1) (acos a))
  (/ (sqrt -1) (* (cbrt (acos a)) (cbrt (acos a))))
  (/ (sqrt -1) (cbrt (acos a)))
  (/ (sqrt -1) (sqrt (acos a)))
  (/ (sqrt -1) (sqrt (acos a)))
  (sqrt -1)
  (/ (sqrt -1) (acos a))
  (/ 1 (* (cbrt (acos a)) (cbrt (acos a))))
  (/ -1 (cbrt (acos a)))
  (/ 1 (sqrt (acos a)))
  (/ -1 (sqrt (acos a)))
  1
  (/ -1 (acos a))
  (/ 1 (acos a))
  (/ (acos a) -1)
  (/ -1 (* (cbrt (acos a)) (cbrt (acos a))))
  (/ -1 (sqrt (acos a)))
  -1
  (/ (acos a) (cbrt -1))
  (/ (acos a) (sqrt -1))
  (/ (acos a) -1)
  (/ (- a) (acos a))
  (/ (- a) (acos a))
  (/ (- a) (acos a))
  (/ -1 (acos a))
  (/ -1 (acos a))
  (/ -1 (acos a))
10.126 * * * [progress]: adding candidates to table
10.257 * * [progress]: iteration 3 / 4
10.257 * * * [progress]: picking best candidate
10.266 * * * * [pick]: Picked  #<alt (λ (a) (/ 1 (- (/ (acos a) a))))>
10.266 * * * [progress]: localizing error
10.273 * * * [progress]: generating rewritten candidates
10.273 * * * * [progress]: [ 1 / 2 ] rewriting at (2)
10.294 * * * * [progress]: [ 2 / 2 ] rewriting at (2 2 1)
10.310 * * * [progress]: generating series expansions
10.310 * * * * [progress]: [ 1 / 2 ] generating series at (2)
10.310 * [backup-simplify]: Simplify (/ 1 (- (/ (acos a) a))) into (* -1 (/ a (acos a)))
10.310 * [approximate]: Taking taylor expansion of (* -1 (/ a (acos a))) in (a) around 0
10.310 * [taylor]: Taking taylor expansion of (* -1 (/ a (acos a))) in a
10.310 * [taylor]: Taking taylor expansion of -1 in a
10.310 * [backup-simplify]: Simplify -1 into -1
10.310 * [taylor]: Taking taylor expansion of (/ a (acos a)) in a
10.310 * [taylor]: Taking taylor expansion of a in a
10.310 * [backup-simplify]: Simplify 0 into 0
10.310 * [backup-simplify]: Simplify 1 into 1
10.310 * [taylor]: Taking taylor expansion of (acos a) in a
10.310 * [backup-simplify]: Simplify (acos a) into (acos a)
10.310 * [backup-simplify]: Simplify (/ 1 (acos a)) into (/ 1 (acos a))
10.310 * [taylor]: Taking taylor expansion of (* -1 (/ a (acos a))) in a
10.310 * [taylor]: Taking taylor expansion of -1 in a
10.310 * [backup-simplify]: Simplify -1 into -1
10.310 * [taylor]: Taking taylor expansion of (/ a (acos a)) in a
10.310 * [taylor]: Taking taylor expansion of a in a
10.310 * [backup-simplify]: Simplify 0 into 0
10.310 * [backup-simplify]: Simplify 1 into 1
10.310 * [taylor]: Taking taylor expansion of (acos a) in a
10.310 * [backup-simplify]: Simplify (acos a) into (acos a)
10.311 * [backup-simplify]: Simplify (/ 1 (acos a)) into (/ 1 (acos a))
10.311 * [backup-simplify]: Simplify (* -1 (/ 1 (acos a))) into (/ -1 (acos a))
10.311 * [backup-simplify]: Simplify (/ -1 (acos a)) into (/ -1 (acos a))
10.311 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))))) into 0
10.311 * [backup-simplify]: Simplify (+ (* -1 0) (* 0 (/ 1 (acos a)))) into 0
10.312 * [backup-simplify]: Simplify 0 into 0
10.312 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
10.312 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (* 0 (/ 1 (acos a))))) into 0
10.312 * [backup-simplify]: Simplify 0 into 0
10.313 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
10.313 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (acos a)))))) into 0
10.313 * [backup-simplify]: Simplify 0 into 0
10.314 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
10.315 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (acos a))))))) into 0
10.315 * [backup-simplify]: Simplify 0 into 0
10.315 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
10.316 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (acos a)))))))) into 0
10.316 * [backup-simplify]: Simplify 0 into 0
10.317 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
10.318 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (acos a))))))))) into 0
10.318 * [backup-simplify]: Simplify 0 into 0
10.318 * [backup-simplify]: Simplify (* (/ -1 (acos a)) a) into (* -1 (/ a (acos a)))
10.319 * [backup-simplify]: Simplify (/ 1 (- (/ (acos (/ 1 a)) (/ 1 a)))) into (/ -1 (* (acos (/ 1 a)) a))
10.319 * [approximate]: Taking taylor expansion of (/ -1 (* (acos (/ 1 a)) a)) in (a) around 0
10.319 * [taylor]: Taking taylor expansion of (/ -1 (* (acos (/ 1 a)) a)) in a
10.319 * [taylor]: Taking taylor expansion of -1 in a
10.319 * [backup-simplify]: Simplify -1 into -1
10.319 * [taylor]: Taking taylor expansion of (* (acos (/ 1 a)) a) in a
10.319 * [taylor]: Taking taylor expansion of (acos (/ 1 a)) in a
10.319 * [backup-simplify]: Simplify (acos (/ 1 a)) into (acos (/ 1 a))
10.319 * [taylor]: Taking taylor expansion of a in a
10.319 * [backup-simplify]: Simplify 0 into 0
10.319 * [backup-simplify]: Simplify 1 into 1
10.319 * [backup-simplify]: Simplify (* (acos (/ 1 a)) 0) into 0
10.319 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 1) (* 0 0)) into (acos (/ 1 a))
10.319 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
10.319 * [taylor]: Taking taylor expansion of (/ -1 (* (acos (/ 1 a)) a)) in a
10.319 * [taylor]: Taking taylor expansion of -1 in a
10.319 * [backup-simplify]: Simplify -1 into -1
10.319 * [taylor]: Taking taylor expansion of (* (acos (/ 1 a)) a) in a
10.319 * [taylor]: Taking taylor expansion of (acos (/ 1 a)) in a
10.319 * [backup-simplify]: Simplify (acos (/ 1 a)) into (acos (/ 1 a))
10.319 * [taylor]: Taking taylor expansion of a in a
10.319 * [backup-simplify]: Simplify 0 into 0
10.320 * [backup-simplify]: Simplify 1 into 1
10.320 * [backup-simplify]: Simplify (* (acos (/ 1 a)) 0) into 0
10.320 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 1) (* 0 0)) into (acos (/ 1 a))
10.320 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
10.320 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
10.321 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 1) (* 0 0))) into 0
10.321 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))))) into 0
10.321 * [backup-simplify]: Simplify 0 into 0
10.321 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
10.322 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
10.322 * [backup-simplify]: Simplify 0 into 0
10.322 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))) into 0
10.323 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
10.323 * [backup-simplify]: Simplify 0 into 0
10.323 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))))) into 0
10.324 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
10.324 * [backup-simplify]: Simplify 0 into 0
10.325 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))))) into 0
10.325 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
10.325 * [backup-simplify]: Simplify 0 into 0
10.326 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))))))) into 0
10.327 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
10.327 * [backup-simplify]: Simplify 0 into 0
10.327 * [backup-simplify]: Simplify (* (/ -1 (acos (/ 1 (/ 1 a)))) (/ 1 (/ 1 a))) into (* -1 (/ a (acos a)))
10.327 * [backup-simplify]: Simplify (/ 1 (- (/ (acos (/ 1 (- a))) (/ 1 (- a))))) into (/ 1 (* a (acos (/ -1 a))))
10.327 * [approximate]: Taking taylor expansion of (/ 1 (* a (acos (/ -1 a)))) in (a) around 0
10.327 * [taylor]: Taking taylor expansion of (/ 1 (* a (acos (/ -1 a)))) in a
10.327 * [taylor]: Taking taylor expansion of (* a (acos (/ -1 a))) in a
10.327 * [taylor]: Taking taylor expansion of a in a
10.327 * [backup-simplify]: Simplify 0 into 0
10.327 * [backup-simplify]: Simplify 1 into 1
10.327 * [taylor]: Taking taylor expansion of (acos (/ -1 a)) in a
10.327 * [backup-simplify]: Simplify (acos (/ -1 a)) into (acos (/ -1 a))
10.327 * [backup-simplify]: Simplify (* 0 (acos (/ -1 a))) into 0
10.328 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 (acos (/ -1 a)))) into (acos (/ -1 a))
10.328 * [backup-simplify]: Simplify (/ 1 (acos (/ -1 a))) into (/ 1 (acos (/ -1 a)))
10.328 * [taylor]: Taking taylor expansion of (/ 1 (* a (acos (/ -1 a)))) in a
10.328 * [taylor]: Taking taylor expansion of (* a (acos (/ -1 a))) in a
10.328 * [taylor]: Taking taylor expansion of a in a
10.328 * [backup-simplify]: Simplify 0 into 0
10.328 * [backup-simplify]: Simplify 1 into 1
10.328 * [taylor]: Taking taylor expansion of (acos (/ -1 a)) in a
10.328 * [backup-simplify]: Simplify (acos (/ -1 a)) into (acos (/ -1 a))
10.328 * [backup-simplify]: Simplify (* 0 (acos (/ -1 a))) into 0
10.329 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 (acos (/ -1 a)))) into (acos (/ -1 a))
10.329 * [backup-simplify]: Simplify (/ 1 (acos (/ -1 a))) into (/ 1 (acos (/ -1 a)))
10.329 * [backup-simplify]: Simplify (/ 1 (acos (/ -1 a))) into (/ 1 (acos (/ -1 a)))
10.329 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (acos (/ -1 a))))) into 0
10.330 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))))) into 0
10.330 * [backup-simplify]: Simplify 0 into 0
10.330 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))) into 0
10.331 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
10.331 * [backup-simplify]: Simplify 0 into 0
10.332 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a))))))) into 0
10.332 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
10.332 * [backup-simplify]: Simplify 0 into 0
10.333 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))))) into 0
10.333 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
10.334 * [backup-simplify]: Simplify 0 into 0
10.335 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a))))))))) into 0
10.335 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
10.335 * [backup-simplify]: Simplify 0 into 0
10.337 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))))))) into 0
10.337 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
10.338 * [backup-simplify]: Simplify 0 into 0
10.338 * [backup-simplify]: Simplify (* (/ 1 (acos (/ -1 (/ 1 (- a))))) (/ 1 (/ 1 (- a)))) into (* -1 (/ a (acos a)))
10.338 * * * * [progress]: [ 2 / 2 ] generating series at (2 2 1)
10.338 * [backup-simplify]: Simplify (/ (acos a) a) into (/ (acos a) a)
10.338 * [approximate]: Taking taylor expansion of (/ (acos a) a) in (a) around 0
10.338 * [taylor]: Taking taylor expansion of (/ (acos a) a) in a
10.338 * [taylor]: Taking taylor expansion of (acos a) in a
10.338 * [backup-simplify]: Simplify (acos a) into (acos a)
10.338 * [taylor]: Taking taylor expansion of a in a
10.338 * [backup-simplify]: Simplify 0 into 0
10.338 * [backup-simplify]: Simplify 1 into 1
10.338 * [backup-simplify]: Simplify (/ (acos a) 1) into (acos a)
10.338 * [taylor]: Taking taylor expansion of (/ (acos a) a) in a
10.338 * [taylor]: Taking taylor expansion of (acos a) in a
10.338 * [backup-simplify]: Simplify (acos a) into (acos a)
10.338 * [taylor]: Taking taylor expansion of a in a
10.338 * [backup-simplify]: Simplify 0 into 0
10.338 * [backup-simplify]: Simplify 1 into 1
10.338 * [backup-simplify]: Simplify (/ (acos a) 1) into (acos a)
10.338 * [backup-simplify]: Simplify (acos a) into (acos a)
10.339 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* (acos a) (/ 0 1)))) into 0
10.339 * [backup-simplify]: Simplify 0 into 0
10.340 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* (acos a) (/ 0 1)) (* 0 (/ 0 1)))) into 0
10.340 * [backup-simplify]: Simplify 0 into 0
10.341 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* (acos a) (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
10.341 * [backup-simplify]: Simplify 0 into 0
10.343 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* (acos a) (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
10.343 * [backup-simplify]: Simplify 0 into 0
10.344 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* (acos a) (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
10.345 * [backup-simplify]: Simplify 0 into 0
10.347 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* (acos a) (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
10.347 * [backup-simplify]: Simplify 0 into 0
10.347 * [backup-simplify]: Simplify (* (acos a) (/ 1 a)) into (/ (acos a) a)
10.347 * [backup-simplify]: Simplify (/ (acos (/ 1 a)) (/ 1 a)) into (* (acos (/ 1 a)) a)
10.347 * [approximate]: Taking taylor expansion of (* (acos (/ 1 a)) a) in (a) around 0
10.347 * [taylor]: Taking taylor expansion of (* (acos (/ 1 a)) a) in a
10.347 * [taylor]: Taking taylor expansion of (acos (/ 1 a)) in a
10.347 * [backup-simplify]: Simplify (acos (/ 1 a)) into (acos (/ 1 a))
10.347 * [taylor]: Taking taylor expansion of a in a
10.347 * [backup-simplify]: Simplify 0 into 0
10.347 * [backup-simplify]: Simplify 1 into 1
10.347 * [taylor]: Taking taylor expansion of (* (acos (/ 1 a)) a) in a
10.347 * [taylor]: Taking taylor expansion of (acos (/ 1 a)) in a
10.347 * [backup-simplify]: Simplify (acos (/ 1 a)) into (acos (/ 1 a))
10.347 * [taylor]: Taking taylor expansion of a in a
10.347 * [backup-simplify]: Simplify 0 into 0
10.347 * [backup-simplify]: Simplify 1 into 1
10.347 * [backup-simplify]: Simplify (* (acos (/ 1 a)) 0) into 0
10.347 * [backup-simplify]: Simplify 0 into 0
10.348 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 1) (* 0 0)) into (acos (/ 1 a))
10.348 * [backup-simplify]: Simplify (acos (/ 1 a)) into (acos (/ 1 a))
10.348 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 1) (* 0 0))) into 0
10.348 * [backup-simplify]: Simplify 0 into 0
10.349 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
10.349 * [backup-simplify]: Simplify 0 into 0
10.350 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))) into 0
10.350 * [backup-simplify]: Simplify 0 into 0
10.351 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))))) into 0
10.351 * [backup-simplify]: Simplify 0 into 0
10.353 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))))) into 0
10.353 * [backup-simplify]: Simplify 0 into 0
10.354 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))))))) into 0
10.354 * [backup-simplify]: Simplify 0 into 0
10.354 * [backup-simplify]: Simplify (* (acos (/ 1 (/ 1 a))) (/ 1 a)) into (/ (acos a) a)
10.354 * [backup-simplify]: Simplify (/ (acos (/ 1 (- a))) (/ 1 (- a))) into (* -1 (* a (acos (/ -1 a))))
10.354 * [approximate]: Taking taylor expansion of (* -1 (* a (acos (/ -1 a)))) in (a) around 0
10.354 * [taylor]: Taking taylor expansion of (* -1 (* a (acos (/ -1 a)))) in a
10.354 * [taylor]: Taking taylor expansion of -1 in a
10.354 * [backup-simplify]: Simplify -1 into -1
10.354 * [taylor]: Taking taylor expansion of (* a (acos (/ -1 a))) in a
10.354 * [taylor]: Taking taylor expansion of a in a
10.354 * [backup-simplify]: Simplify 0 into 0
10.354 * [backup-simplify]: Simplify 1 into 1
10.354 * [taylor]: Taking taylor expansion of (acos (/ -1 a)) in a
10.354 * [backup-simplify]: Simplify (acos (/ -1 a)) into (acos (/ -1 a))
10.354 * [taylor]: Taking taylor expansion of (* -1 (* a (acos (/ -1 a)))) in a
10.354 * [taylor]: Taking taylor expansion of -1 in a
10.354 * [backup-simplify]: Simplify -1 into -1
10.354 * [taylor]: Taking taylor expansion of (* a (acos (/ -1 a))) in a
10.354 * [taylor]: Taking taylor expansion of a in a
10.354 * [backup-simplify]: Simplify 0 into 0
10.354 * [backup-simplify]: Simplify 1 into 1
10.354 * [taylor]: Taking taylor expansion of (acos (/ -1 a)) in a
10.354 * [backup-simplify]: Simplify (acos (/ -1 a)) into (acos (/ -1 a))
10.354 * [backup-simplify]: Simplify (* 0 (acos (/ -1 a))) into 0
10.355 * [backup-simplify]: Simplify (* -1 0) into 0
10.355 * [backup-simplify]: Simplify 0 into 0
10.355 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 (acos (/ -1 a)))) into (acos (/ -1 a))
10.355 * [backup-simplify]: Simplify (+ (* -1 (acos (/ -1 a))) (* 0 0)) into (- (acos (/ -1 a)))
10.356 * [backup-simplify]: Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
10.356 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (acos (/ -1 a))))) into 0
10.357 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 (acos (/ -1 a))) (* 0 0))) into 0
10.357 * [backup-simplify]: Simplify 0 into 0
10.357 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))) into 0
10.358 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 (acos (/ -1 a))) (* 0 0)))) into 0
10.358 * [backup-simplify]: Simplify 0 into 0
10.359 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a))))))) into 0
10.360 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (acos (/ -1 a))) (* 0 0))))) into 0
10.360 * [backup-simplify]: Simplify 0 into 0
10.361 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))))) into 0
10.363 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (acos (/ -1 a))) (* 0 0)))))) into 0
10.363 * [backup-simplify]: Simplify 0 into 0
10.364 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a))))))))) into 0
10.366 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (acos (/ -1 a))) (* 0 0))))))) into 0
10.366 * [backup-simplify]: Simplify 0 into 0
10.367 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))))))) into 0
10.369 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (acos (/ -1 a))) (* 0 0)))))))) into 0
10.369 * [backup-simplify]: Simplify 0 into 0
10.369 * [backup-simplify]: Simplify (* (- (acos (/ -1 (/ 1 (- a))))) (/ 1 (- a))) into (/ (acos a) a)
10.369 * * * [progress]: simplifying candidates
10.372 * [simplify]: Simplifying:
  (expm1 (/ 1 (- (/ (acos a) a))))
  (log1p (/ 1 (- (/ (acos a) a))))
  (- 1)
  (- (log (- (/ (acos a) a))))
  (- 0 (log (- (/ (acos a) a))))
  (- (log 1) (log (- (/ (acos a) a))))
  (log (/ 1 (- (/ (acos a) a))))
  (exp (/ 1 (- (/ (acos a) a))))
  (/ (* (* 1 1) 1) (* (* (- (/ (acos a) a)) (- (/ (acos a) a))) (- (/ (acos a) a))))
  (* (cbrt (/ 1 (- (/ (acos a) a)))) (cbrt (/ 1 (- (/ (acos a) a)))))
  (cbrt (/ 1 (- (/ (acos a) a))))
  (* (* (/ 1 (- (/ (acos a) a))) (/ 1 (- (/ (acos a) a)))) (/ 1 (- (/ (acos a) a))))
  (sqrt (/ 1 (- (/ (acos a) a))))
  (sqrt (/ 1 (- (/ (acos a) a))))
  (- 1)
  (- (- (/ (acos a) a)))
  (/ (* (cbrt 1) (cbrt 1)) (* (cbrt (- (/ (acos a) a))) (cbrt (- (/ (acos a) a)))))
  (/ (cbrt 1) (cbrt (- (/ (acos a) a))))
  (/ (* (cbrt 1) (cbrt 1)) (sqrt (- (/ (acos a) a))))
  (/ (cbrt 1) (sqrt (- (/ (acos a) a))))
  (/ (* (cbrt 1) (cbrt 1)) 1)
  (/ (cbrt 1) (- (/ (acos a) a)))
  (/ (* (cbrt 1) (cbrt 1)) -1)
  (/ (cbrt 1) (/ (acos a) a))
  (/ (* (cbrt 1) (cbrt 1)) (- (* (cbrt (/ (acos a) a)) (cbrt (/ (acos a) a)))))
  (/ (cbrt 1) (cbrt (/ (acos a) a)))
  (/ (* (cbrt 1) (cbrt 1)) (- (sqrt (/ (acos a) a))))
  (/ (cbrt 1) (sqrt (/ (acos a) a)))
  (/ (* (cbrt 1) (cbrt 1)) (- (/ (* (cbrt (acos a)) (cbrt (acos a))) (* (cbrt a) (cbrt a)))))
  (/ (cbrt 1) (/ (cbrt (acos a)) (cbrt a)))
  (/ (* (cbrt 1) (cbrt 1)) (- (/ (* (cbrt (acos a)) (cbrt (acos a))) (sqrt a))))
  (/ (cbrt 1) (/ (cbrt (acos a)) (sqrt a)))
  (/ (* (cbrt 1) (cbrt 1)) (- (/ (* (cbrt (acos a)) (cbrt (acos a))) 1)))
  (/ (cbrt 1) (/ (cbrt (acos a)) a))
  (/ (* (cbrt 1) (cbrt 1)) (- (/ (sqrt (acos a)) (* (cbrt a) (cbrt a)))))
  (/ (cbrt 1) (/ (sqrt (acos a)) (cbrt a)))
  (/ (* (cbrt 1) (cbrt 1)) (- (/ (sqrt (acos a)) (sqrt a))))
  (/ (cbrt 1) (/ (sqrt (acos a)) (sqrt a)))
  (/ (* (cbrt 1) (cbrt 1)) (- (/ (sqrt (acos a)) 1)))
  (/ (cbrt 1) (/ (sqrt (acos a)) a))
  (/ (* (cbrt 1) (cbrt 1)) (- (/ 1 (* (cbrt a) (cbrt a)))))
  (/ (cbrt 1) (/ (acos a) (cbrt a)))
  (/ (* (cbrt 1) (cbrt 1)) (- (/ 1 (sqrt a))))
  (/ (cbrt 1) (/ (acos a) (sqrt a)))
  (/ (* (cbrt 1) (cbrt 1)) (- (/ 1 1)))
  (/ (cbrt 1) (/ (acos a) a))
  (/ (* (cbrt 1) (cbrt 1)) (- 1))
  (/ (cbrt 1) (/ (acos a) a))
  (/ (* (cbrt 1) (cbrt 1)) (- (acos a)))
  (/ (cbrt 1) (/ 1 a))
  (/ (* (cbrt 1) (cbrt 1)) (* (cbrt (/ (acos a) a)) (cbrt (/ (acos a) a))))
  (/ (cbrt 1) (- (cbrt (/ (acos a) a))))
  (/ (* (cbrt 1) (cbrt 1)) (sqrt (/ (acos a) a)))
  (/ (cbrt 1) (- (sqrt (/ (acos a) a))))
  (/ (* (cbrt 1) (cbrt 1)) (/ (* (cbrt (acos a)) (cbrt (acos a))) (* (cbrt a) (cbrt a))))
  (/ (cbrt 1) (- (/ (cbrt (acos a)) (cbrt a))))
  (/ (* (cbrt 1) (cbrt 1)) (/ (* (cbrt (acos a)) (cbrt (acos a))) (sqrt a)))
  (/ (cbrt 1) (- (/ (cbrt (acos a)) (sqrt a))))
  (/ (* (cbrt 1) (cbrt 1)) (/ (* (cbrt (acos a)) (cbrt (acos a))) 1))
  (/ (cbrt 1) (- (/ (cbrt (acos a)) a)))
  (/ (* (cbrt 1) (cbrt 1)) (/ (sqrt (acos a)) (* (cbrt a) (cbrt a))))
  (/ (cbrt 1) (- (/ (sqrt (acos a)) (cbrt a))))
  (/ (* (cbrt 1) (cbrt 1)) (/ (sqrt (acos a)) (sqrt a)))
  (/ (cbrt 1) (- (/ (sqrt (acos a)) (sqrt a))))
  (/ (* (cbrt 1) (cbrt 1)) (/ (sqrt (acos a)) 1))
  (/ (cbrt 1) (- (/ (sqrt (acos a)) a)))
  (/ (* (cbrt 1) (cbrt 1)) (/ 1 (* (cbrt a) (cbrt a))))
  (/ (cbrt 1) (- (/ (acos a) (cbrt a))))
  (/ (* (cbrt 1) (cbrt 1)) (/ 1 (sqrt a)))
  (/ (cbrt 1) (- (/ (acos a) (sqrt a))))
  (/ (* (cbrt 1) (cbrt 1)) (/ 1 1))
  (/ (cbrt 1) (- (/ (acos a) a)))
  (/ (* (cbrt 1) (cbrt 1)) 1)
  (/ (cbrt 1) (- (/ (acos a) a)))
  (/ (* (cbrt 1) (cbrt 1)) (acos a))
  (/ (cbrt 1) (- (/ 1 a)))
  (/ (sqrt 1) (* (cbrt (- (/ (acos a) a))) (cbrt (- (/ (acos a) a)))))
  (/ (sqrt 1) (cbrt (- (/ (acos a) a))))
  (/ (sqrt 1) (sqrt (- (/ (acos a) a))))
  (/ (sqrt 1) (sqrt (- (/ (acos a) a))))
  (/ (sqrt 1) 1)
  (/ (sqrt 1) (- (/ (acos a) a)))
  (/ (sqrt 1) -1)
  (/ (sqrt 1) (/ (acos a) a))
  (/ (sqrt 1) (- (* (cbrt (/ (acos a) a)) (cbrt (/ (acos a) a)))))
  (/ (sqrt 1) (cbrt (/ (acos a) a)))
  (/ (sqrt 1) (- (sqrt (/ (acos a) a))))
  (/ (sqrt 1) (sqrt (/ (acos a) a)))
  (/ (sqrt 1) (- (/ (* (cbrt (acos a)) (cbrt (acos a))) (* (cbrt a) (cbrt a)))))
  (/ (sqrt 1) (/ (cbrt (acos a)) (cbrt a)))
  (/ (sqrt 1) (- (/ (* (cbrt (acos a)) (cbrt (acos a))) (sqrt a))))
  (/ (sqrt 1) (/ (cbrt (acos a)) (sqrt a)))
  (/ (sqrt 1) (- (/ (* (cbrt (acos a)) (cbrt (acos a))) 1)))
  (/ (sqrt 1) (/ (cbrt (acos a)) a))
  (/ (sqrt 1) (- (/ (sqrt (acos a)) (* (cbrt a) (cbrt a)))))
  (/ (sqrt 1) (/ (sqrt (acos a)) (cbrt a)))
  (/ (sqrt 1) (- (/ (sqrt (acos a)) (sqrt a))))
  (/ (sqrt 1) (/ (sqrt (acos a)) (sqrt a)))
  (/ (sqrt 1) (- (/ (sqrt (acos a)) 1)))
  (/ (sqrt 1) (/ (sqrt (acos a)) a))
  (/ (sqrt 1) (- (/ 1 (* (cbrt a) (cbrt a)))))
  (/ (sqrt 1) (/ (acos a) (cbrt a)))
  (/ (sqrt 1) (- (/ 1 (sqrt a))))
  (/ (sqrt 1) (/ (acos a) (sqrt a)))
  (/ (sqrt 1) (- (/ 1 1)))
  (/ (sqrt 1) (/ (acos a) a))
  (/ (sqrt 1) (- 1))
  (/ (sqrt 1) (/ (acos a) a))
  (/ (sqrt 1) (- (acos a)))
  (/ (sqrt 1) (/ 1 a))
  (/ (sqrt 1) (* (cbrt (/ (acos a) a)) (cbrt (/ (acos a) a))))
  (/ (sqrt 1) (- (cbrt (/ (acos a) a))))
  (/ (sqrt 1) (sqrt (/ (acos a) a)))
  (/ (sqrt 1) (- (sqrt (/ (acos a) a))))
  (/ (sqrt 1) (/ (* (cbrt (acos a)) (cbrt (acos a))) (* (cbrt a) (cbrt a))))
  (/ (sqrt 1) (- (/ (cbrt (acos a)) (cbrt a))))
  (/ (sqrt 1) (/ (* (cbrt (acos a)) (cbrt (acos a))) (sqrt a)))
  (/ (sqrt 1) (- (/ (cbrt (acos a)) (sqrt a))))
  (/ (sqrt 1) (/ (* (cbrt (acos a)) (cbrt (acos a))) 1))
  (/ (sqrt 1) (- (/ (cbrt (acos a)) a)))
  (/ (sqrt 1) (/ (sqrt (acos a)) (* (cbrt a) (cbrt a))))
  (/ (sqrt 1) (- (/ (sqrt (acos a)) (cbrt a))))
  (/ (sqrt 1) (/ (sqrt (acos a)) (sqrt a)))
  (/ (sqrt 1) (- (/ (sqrt (acos a)) (sqrt a))))
  (/ (sqrt 1) (/ (sqrt (acos a)) 1))
  (/ (sqrt 1) (- (/ (sqrt (acos a)) a)))
  (/ (sqrt 1) (/ 1 (* (cbrt a) (cbrt a))))
  (/ (sqrt 1) (- (/ (acos a) (cbrt a))))
  (/ (sqrt 1) (/ 1 (sqrt a)))
  (/ (sqrt 1) (- (/ (acos a) (sqrt a))))
  (/ (sqrt 1) (/ 1 1))
  (/ (sqrt 1) (- (/ (acos a) a)))
  (/ (sqrt 1) 1)
  (/ (sqrt 1) (- (/ (acos a) a)))
  (/ (sqrt 1) (acos a))
  (/ (sqrt 1) (- (/ 1 a)))
  (/ 1 (* (cbrt (- (/ (acos a) a))) (cbrt (- (/ (acos a) a)))))
  (/ 1 (cbrt (- (/ (acos a) a))))
  (/ 1 (sqrt (- (/ (acos a) a))))
  (/ 1 (sqrt (- (/ (acos a) a))))
  (/ 1 1)
  (/ 1 (- (/ (acos a) a)))
  (/ 1 -1)
  (/ 1 (/ (acos a) a))
  (/ 1 (- (* (cbrt (/ (acos a) a)) (cbrt (/ (acos a) a)))))
  (/ 1 (cbrt (/ (acos a) a)))
  (/ 1 (- (sqrt (/ (acos a) a))))
  (/ 1 (sqrt (/ (acos a) a)))
  (/ 1 (- (/ (* (cbrt (acos a)) (cbrt (acos a))) (* (cbrt a) (cbrt a)))))
  (/ 1 (/ (cbrt (acos a)) (cbrt a)))
  (/ 1 (- (/ (* (cbrt (acos a)) (cbrt (acos a))) (sqrt a))))
  (/ 1 (/ (cbrt (acos a)) (sqrt a)))
  (/ 1 (- (/ (* (cbrt (acos a)) (cbrt (acos a))) 1)))
  (/ 1 (/ (cbrt (acos a)) a))
  (/ 1 (- (/ (sqrt (acos a)) (* (cbrt a) (cbrt a)))))
  (/ 1 (/ (sqrt (acos a)) (cbrt a)))
  (/ 1 (- (/ (sqrt (acos a)) (sqrt a))))
  (/ 1 (/ (sqrt (acos a)) (sqrt a)))
  (/ 1 (- (/ (sqrt (acos a)) 1)))
  (/ 1 (/ (sqrt (acos a)) a))
  (/ 1 (- (/ 1 (* (cbrt a) (cbrt a)))))
  (/ 1 (/ (acos a) (cbrt a)))
  (/ 1 (- (/ 1 (sqrt a))))
  (/ 1 (/ (acos a) (sqrt a)))
  (/ 1 (- (/ 1 1)))
  (/ 1 (/ (acos a) a))
  (/ 1 (- 1))
  (/ 1 (/ (acos a) a))
  (/ 1 (- (acos a)))
  (/ 1 (/ 1 a))
  (/ 1 (* (cbrt (/ (acos a) a)) (cbrt (/ (acos a) a))))
  (/ 1 (- (cbrt (/ (acos a) a))))
  (/ 1 (sqrt (/ (acos a) a)))
  (/ 1 (- (sqrt (/ (acos a) a))))
  (/ 1 (/ (* (cbrt (acos a)) (cbrt (acos a))) (* (cbrt a) (cbrt a))))
  (/ 1 (- (/ (cbrt (acos a)) (cbrt a))))
  (/ 1 (/ (* (cbrt (acos a)) (cbrt (acos a))) (sqrt a)))
  (/ 1 (- (/ (cbrt (acos a)) (sqrt a))))
  (/ 1 (/ (* (cbrt (acos a)) (cbrt (acos a))) 1))
  (/ 1 (- (/ (cbrt (acos a)) a)))
  (/ 1 (/ (sqrt (acos a)) (* (cbrt a) (cbrt a))))
  (/ 1 (- (/ (sqrt (acos a)) (cbrt a))))
  (/ 1 (/ (sqrt (acos a)) (sqrt a)))
  (/ 1 (- (/ (sqrt (acos a)) (sqrt a))))
  (/ 1 (/ (sqrt (acos a)) 1))
  (/ 1 (- (/ (sqrt (acos a)) a)))
  (/ 1 (/ 1 (* (cbrt a) (cbrt a))))
  (/ 1 (- (/ (acos a) (cbrt a))))
  (/ 1 (/ 1 (sqrt a)))
  (/ 1 (- (/ (acos a) (sqrt a))))
  (/ 1 (/ 1 1))
  (/ 1 (- (/ (acos a) a)))
  (/ 1 1)
  (/ 1 (- (/ (acos a) a)))
  (/ 1 (acos a))
  (/ 1 (- (/ 1 a)))
  (/ 1 (- (/ (acos a) a)))
  (/ (- (/ (acos a) a)) 1)
  (/ 1 (* (cbrt (- (/ (acos a) a))) (cbrt (- (/ (acos a) a)))))
  (/ 1 (sqrt (- (/ (acos a) a))))
  (/ 1 1)
  (/ 1 -1)
  (/ 1 (- (* (cbrt (/ (acos a) a)) (cbrt (/ (acos a) a)))))
  (/ 1 (- (sqrt (/ (acos a) a))))
  (/ 1 (- (/ (* (cbrt (acos a)) (cbrt (acos a))) (* (cbrt a) (cbrt a)))))
  (/ 1 (- (/ (* (cbrt (acos a)) (cbrt (acos a))) (sqrt a))))
  (/ 1 (- (/ (* (cbrt (acos a)) (cbrt (acos a))) 1)))
  (/ 1 (- (/ (sqrt (acos a)) (* (cbrt a) (cbrt a)))))
  (/ 1 (- (/ (sqrt (acos a)) (sqrt a))))
  (/ 1 (- (/ (sqrt (acos a)) 1)))
  (/ 1 (- (/ 1 (* (cbrt a) (cbrt a)))))
  (/ 1 (- (/ 1 (sqrt a))))
  (/ 1 (- (/ 1 1)))
  (/ 1 (- 1))
  (/ 1 (- (acos a)))
  (/ 1 (* (cbrt (/ (acos a) a)) (cbrt (/ (acos a) a))))
  (/ 1 (sqrt (/ (acos a) a)))
  (/ 1 (/ (* (cbrt (acos a)) (cbrt (acos a))) (* (cbrt a) (cbrt a))))
  (/ 1 (/ (* (cbrt (acos a)) (cbrt (acos a))) (sqrt a)))
  (/ 1 (/ (* (cbrt (acos a)) (cbrt (acos a))) 1))
  (/ 1 (/ (sqrt (acos a)) (* (cbrt a) (cbrt a))))
  (/ 1 (/ (sqrt (acos a)) (sqrt a)))
  (/ 1 (/ (sqrt (acos a)) 1))
  (/ 1 (/ 1 (* (cbrt a) (cbrt a))))
  (/ 1 (/ 1 (sqrt a)))
  (/ 1 (/ 1 1))
  (/ 1 1)
  (/ 1 (acos a))
  (/ (- (/ (acos a) a)) (cbrt 1))
  (/ (- (/ (acos a) a)) (sqrt 1))
  (/ (- (/ (acos a) a)) 1)
  (/ 1 (- (acos a)))
  (expm1 (/ (acos a) a))
  (log1p (/ (acos a) a))
  (- (log (acos a)) (log a))
  (log (/ (acos a) a))
  (exp (/ (acos a) a))
  (/ (* (* (acos a) (acos a)) (acos a)) (* (* a a) a))
  (* (cbrt (/ (acos a) a)) (cbrt (/ (acos a) a)))
  (cbrt (/ (acos a) a))
  (* (* (/ (acos a) a) (/ (acos a) a)) (/ (acos a) a))
  (sqrt (/ (acos a) a))
  (sqrt (/ (acos a) a))
  (- (acos a))
  (- a)
  (/ (/ PI 2) a)
  (/ (asin a) a)
  (/ (* (cbrt (acos a)) (cbrt (acos a))) (* (cbrt a) (cbrt a)))
  (/ (cbrt (acos a)) (cbrt a))
  (/ (* (cbrt (acos a)) (cbrt (acos a))) (sqrt a))
  (/ (cbrt (acos a)) (sqrt a))
  (/ (* (cbrt (acos a)) (cbrt (acos a))) 1)
  (/ (cbrt (acos a)) a)
  (/ (sqrt (acos a)) (* (cbrt a) (cbrt a)))
  (/ (sqrt (acos a)) (cbrt a))
  (/ (sqrt (acos a)) (sqrt a))
  (/ (sqrt (acos a)) (sqrt a))
  (/ (sqrt (acos a)) 1)
  (/ (sqrt (acos a)) a)
  (/ 1 (* (cbrt a) (cbrt a)))
  (/ (acos a) (cbrt a))
  (/ 1 (sqrt a))
  (/ (acos a) (sqrt a))
  (/ 1 1)
  (/ (acos a) a)
  (/ 1 a)
  (/ a (acos a))
  (/ (acos a) (* (cbrt a) (cbrt a)))
  (/ (acos a) (sqrt a))
  (/ (acos a) 1)
  (/ a (cbrt (acos a)))
  (/ a (sqrt (acos a)))
  (/ a (acos a))
  (* -1 (/ a (acos a)))
  (* -1 (/ a (acos a)))
  (* -1 (/ a (acos a)))
  (/ (acos a) a)
  (/ (acos a) a)
  (/ (acos a) a)
10.376 * * [simplify]: Extracting # 0 : cost  0
10.376 * * [simplify]: Extracting # 1 : cost  0
10.377 * * [simplify]: Extracting # 2 : cost  0
10.377 * * [simplify]: Extracting # 3 : cost  0
10.377 * * [simplify]: Extracting # 4 : cost  0
10.378 * * [simplify]: Extracting # 5 : cost  0
10.378 * * [simplify]: Extracting # 6 : cost  0
10.379 * * [simplify]: iteration  0 :  265  enodes  (cost  2409 )
10.537 * * [simplify]: Extracting # 0 : cost  0
10.538 * * [simplify]: Extracting # 1 : cost  0
10.539 * * [simplify]: Extracting # 2 : cost  0
10.540 * * [simplify]: iteration  1 :  472  enodes  (cost  2004 )
10.682 * * [simplify]: Extracting # 0 : cost  0
10.684 * * [simplify]: Extracting # 1 : cost  0
10.685 * * [simplify]: Extracting # 2 : cost  0
10.693 * * [simplify]: Extracting # 3 : cost  0
10.694 * * [simplify]: iteration  2 :  774  enodes  (cost  1861 )
11.071 * * [simplify]: Extracting # 0 : cost  0
11.074 * * [simplify]: Extracting # 1 : cost  0
11.076 * * [simplify]: Extracting # 2 : cost  0
11.078 * * [simplify]: Extracting # 3 : cost  0
11.080 * * [simplify]: Extracting # 4 : cost  0
11.082 * * [simplify]: iteration  3 :  1510  enodes  (cost  1711 )
12.416 * * [simplify]: Extracting # 0 : cost  0
12.419 * * [simplify]: Extracting # 1 : cost  0
12.421 * * [simplify]: Extracting # 2 : cost  0
12.423 * * [simplify]: Extracting # 3 : cost  0
12.425 * * [simplify]: Extracting # 4 : cost  0
12.427 * * [simplify]: iteration  4 :  2755  enodes  (cost  1711 )
16.001 * * [simplify]: Extracting # 0 : cost  0
16.008 * * [simplify]: Extracting # 1 : cost  0
16.013 * * [simplify]: Extracting # 2 : cost  0
16.017 * * [simplify]: Extracting # 3 : cost  0
16.022 * * [simplify]: Extracting # 4 : cost  0
16.027 * * [simplify]: iteration done:  5000  enodes  (cost  1711 )
16.028 * [simplify]: Simplified to:
  (expm1 (/ a (- (acos a))))
  (log1p (/ a (- (acos a))))
  -1
  (log (/ a (- (acos a))))
  (log (/ a (- (acos a))))
  (log (/ a (- (acos a))))
  (log (/ a (- (acos a))))
  (exp (/ a (- (acos a))))
  (pow (/ a (- (acos a))) 3)
  (* (cbrt (/ a (- (acos a)))) (cbrt (/ a (- (acos a)))))
  (cbrt (/ a (- (acos a))))
  (pow (/ a (- (acos a))) 3)
  (sqrt (/ a (- (acos a))))
  (sqrt (/ a (- (acos a))))
  -1
  (/ (acos a) a)
  (/ 1 (* (cbrt (- (/ (acos a) a))) (cbrt (- (/ (acos a) a)))))
  (/ 1 (cbrt (- (/ (acos a) a))))
  (/ 1 (sqrt (- (/ (acos a) a))))
  (/ 1 (sqrt (- (/ (acos a) a))))
  1
  (- (/ a (acos a)))
  -1
  (/ a (acos a))
  (/ 1 (- (* (cbrt (/ (acos a) a)) (cbrt (/ (acos a) a)))))
  (/ 1 (cbrt (/ (acos a) a)))
  (/ 1 (- (sqrt (/ (acos a) a))))
  (/ 1 (sqrt (/ (acos a) a)))
  (/ (* (cbrt a) (cbrt a)) (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (/ (cbrt a) (cbrt (acos a)))
  (/ (sqrt a) (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (/ (sqrt a) (cbrt (acos a)))
  (/ (/ 1 (cbrt (acos a))) (- (cbrt (acos a))))
  (/ a (cbrt (acos a)))
  (/ (* (cbrt a) (cbrt a)) (- (sqrt (acos a))))
  (/ (cbrt a) (sqrt (acos a)))
  (/ (sqrt a) (- (sqrt (acos a))))
  (/ (sqrt a) (sqrt (acos a)))
  (/ 1 (- (sqrt (acos a))))
  (/ a (sqrt (acos a)))
  (- (* (cbrt a) (cbrt a)))
  (/ (cbrt a) (acos a))
  (- (sqrt a))
  (/ (sqrt a) (acos a))
  -1
  (/ a (acos a))
  -1
  (/ a (acos a))
  (/ 1 (- (acos a)))
  a
  (/ 1 (* (cbrt (/ (acos a) a)) (cbrt (/ (acos a) a))))
  (/ 1 (- (cbrt (/ (acos a) a))))
  (/ 1 (sqrt (/ (acos a) a)))
  (/ 1 (- (sqrt (/ (acos a) a))))
  (/ (* (cbrt a) (cbrt a)) (* (cbrt (acos a)) (cbrt (acos a))))
  (/ (cbrt a) (- (cbrt (acos a))))
  (/ (sqrt a) (* (cbrt (acos a)) (cbrt (acos a))))
  (/ (sqrt a) (- (cbrt (acos a))))
  (/ (/ 1 (cbrt (acos a))) (cbrt (acos a)))
  (/ a (- (cbrt (acos a))))
  (/ (* (cbrt a) (cbrt a)) (sqrt (acos a)))
  (/ (cbrt a) (- (sqrt (acos a))))
  (/ (sqrt a) (sqrt (acos a)))
  (/ (sqrt a) (- (sqrt (acos a))))
  (/ 1 (sqrt (acos a)))
  (/ a (- (sqrt (acos a))))
  (* (cbrt a) (cbrt a))
  (/ (cbrt a) (- (acos a)))
  (sqrt a)
  (/ (sqrt a) (- (acos a)))
  1
  (- (/ a (acos a)))
  1
  (- (/ a (acos a)))
  (/ 1 (acos a))
  (- a)
  (/ 1 (* (cbrt (- (/ (acos a) a))) (cbrt (- (/ (acos a) a)))))
  (/ 1 (cbrt (- (/ (acos a) a))))
  (/ 1 (sqrt (- (/ (acos a) a))))
  (/ 1 (sqrt (- (/ (acos a) a))))
  1
  (- (/ a (acos a)))
  -1
  (/ a (acos a))
  (/ 1 (- (* (cbrt (/ (acos a) a)) (cbrt (/ (acos a) a)))))
  (/ 1 (cbrt (/ (acos a) a)))
  (/ 1 (- (sqrt (/ (acos a) a))))
  (/ 1 (sqrt (/ (acos a) a)))
  (/ (* (cbrt a) (cbrt a)) (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (/ (cbrt a) (cbrt (acos a)))
  (/ (sqrt a) (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (/ (sqrt a) (cbrt (acos a)))
  (/ (/ 1 (cbrt (acos a))) (- (cbrt (acos a))))
  (/ a (cbrt (acos a)))
  (/ (* (cbrt a) (cbrt a)) (- (sqrt (acos a))))
  (/ (cbrt a) (sqrt (acos a)))
  (/ (sqrt a) (- (sqrt (acos a))))
  (/ (sqrt a) (sqrt (acos a)))
  (/ 1 (- (sqrt (acos a))))
  (/ a (sqrt (acos a)))
  (- (* (cbrt a) (cbrt a)))
  (/ (cbrt a) (acos a))
  (- (sqrt a))
  (/ (sqrt a) (acos a))
  -1
  (/ a (acos a))
  -1
  (/ a (acos a))
  (/ 1 (- (acos a)))
  a
  (/ 1 (* (cbrt (/ (acos a) a)) (cbrt (/ (acos a) a))))
  (/ 1 (- (cbrt (/ (acos a) a))))
  (/ 1 (sqrt (/ (acos a) a)))
  (/ 1 (- (sqrt (/ (acos a) a))))
  (/ (* (cbrt a) (cbrt a)) (* (cbrt (acos a)) (cbrt (acos a))))
  (/ (cbrt a) (- (cbrt (acos a))))
  (/ (sqrt a) (* (cbrt (acos a)) (cbrt (acos a))))
  (/ (sqrt a) (- (cbrt (acos a))))
  (/ (/ 1 (cbrt (acos a))) (cbrt (acos a)))
  (/ a (- (cbrt (acos a))))
  (/ (* (cbrt a) (cbrt a)) (sqrt (acos a)))
  (/ (cbrt a) (- (sqrt (acos a))))
  (/ (sqrt a) (sqrt (acos a)))
  (/ (sqrt a) (- (sqrt (acos a))))
  (/ 1 (sqrt (acos a)))
  (/ a (- (sqrt (acos a))))
  (* (cbrt a) (cbrt a))
  (/ (cbrt a) (- (acos a)))
  (sqrt a)
  (/ (sqrt a) (- (acos a)))
  1
  (- (/ a (acos a)))
  1
  (- (/ a (acos a)))
  (/ 1 (acos a))
  (- a)
  (/ 1 (* (cbrt (- (/ (acos a) a))) (cbrt (- (/ (acos a) a)))))
  (/ 1 (cbrt (- (/ (acos a) a))))
  (/ 1 (sqrt (- (/ (acos a) a))))
  (/ 1 (sqrt (- (/ (acos a) a))))
  1
  (- (/ a (acos a)))
  -1
  (/ a (acos a))
  (/ 1 (- (* (cbrt (/ (acos a) a)) (cbrt (/ (acos a) a)))))
  (/ 1 (cbrt (/ (acos a) a)))
  (/ 1 (- (sqrt (/ (acos a) a))))
  (/ 1 (sqrt (/ (acos a) a)))
  (/ (* (cbrt a) (cbrt a)) (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (/ (cbrt a) (cbrt (acos a)))
  (/ (sqrt a) (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (/ (sqrt a) (cbrt (acos a)))
  (/ (/ 1 (cbrt (acos a))) (- (cbrt (acos a))))
  (/ a (cbrt (acos a)))
  (/ (* (cbrt a) (cbrt a)) (- (sqrt (acos a))))
  (/ (cbrt a) (sqrt (acos a)))
  (/ (sqrt a) (- (sqrt (acos a))))
  (/ (sqrt a) (sqrt (acos a)))
  (/ 1 (- (sqrt (acos a))))
  (/ a (sqrt (acos a)))
  (- (* (cbrt a) (cbrt a)))
  (/ (cbrt a) (acos a))
  (- (sqrt a))
  (/ (sqrt a) (acos a))
  -1
  (/ a (acos a))
  -1
  (/ a (acos a))
  (/ 1 (- (acos a)))
  a
  (/ 1 (* (cbrt (/ (acos a) a)) (cbrt (/ (acos a) a))))
  (/ 1 (- (cbrt (/ (acos a) a))))
  (/ 1 (sqrt (/ (acos a) a)))
  (/ 1 (- (sqrt (/ (acos a) a))))
  (/ (* (cbrt a) (cbrt a)) (* (cbrt (acos a)) (cbrt (acos a))))
  (/ (cbrt a) (- (cbrt (acos a))))
  (/ (sqrt a) (* (cbrt (acos a)) (cbrt (acos a))))
  (/ (sqrt a) (- (cbrt (acos a))))
  (/ (/ 1 (cbrt (acos a))) (cbrt (acos a)))
  (/ a (- (cbrt (acos a))))
  (/ (* (cbrt a) (cbrt a)) (sqrt (acos a)))
  (/ (cbrt a) (- (sqrt (acos a))))
  (/ (sqrt a) (sqrt (acos a)))
  (/ (sqrt a) (- (sqrt (acos a))))
  (/ 1 (sqrt (acos a)))
  (/ a (- (sqrt (acos a))))
  (* (cbrt a) (cbrt a))
  (/ (cbrt a) (- (acos a)))
  (sqrt a)
  (/ (sqrt a) (- (acos a)))
  1
  (- (/ a (acos a)))
  1
  (- (/ a (acos a)))
  (/ 1 (acos a))
  (- a)
  (- (/ a (acos a)))
  (- (/ (acos a) a))
  (/ 1 (* (cbrt (- (/ (acos a) a))) (cbrt (- (/ (acos a) a)))))
  (/ 1 (sqrt (- (/ (acos a) a))))
  1
  -1
  (/ 1 (- (* (cbrt (/ (acos a) a)) (cbrt (/ (acos a) a)))))
  (/ 1 (- (sqrt (/ (acos a) a))))
  (/ (* (cbrt a) (cbrt a)) (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (/ (sqrt a) (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (/ (/ 1 (cbrt (acos a))) (- (cbrt (acos a))))
  (/ (* (cbrt a) (cbrt a)) (- (sqrt (acos a))))
  (/ (sqrt a) (- (sqrt (acos a))))
  (/ 1 (- (sqrt (acos a))))
  (- (* (cbrt a) (cbrt a)))
  (- (sqrt a))
  -1
  -1
  (/ 1 (- (acos a)))
  (/ 1 (* (cbrt (/ (acos a) a)) (cbrt (/ (acos a) a))))
  (/ 1 (sqrt (/ (acos a) a)))
  (/ (* (cbrt a) (cbrt a)) (* (cbrt (acos a)) (cbrt (acos a))))
  (/ (sqrt a) (* (cbrt (acos a)) (cbrt (acos a))))
  (/ (/ 1 (cbrt (acos a))) (cbrt (acos a)))
  (/ (* (cbrt a) (cbrt a)) (sqrt (acos a)))
  (/ (sqrt a) (sqrt (acos a)))
  (/ 1 (sqrt (acos a)))
  (* (cbrt a) (cbrt a))
  (sqrt a)
  1
  1
  (/ 1 (acos a))
  (- (/ (acos a) a))
  (- (/ (acos a) a))
  (- (/ (acos a) a))
  (/ 1 (- (acos a)))
  (expm1 (/ (acos a) a))
  (log1p (/ (acos a) a))
  (log (/ (acos a) a))
  (log (/ (acos a) a))
  (exp (/ (acos a) a))
  (pow (/ (acos a) a) 3)
  (* (cbrt (/ (acos a) a)) (cbrt (/ (acos a) a)))
  (cbrt (/ (acos a) a))
  (pow (/ (acos a) a) 3)
  (sqrt (/ (acos a) a))
  (sqrt (/ (acos a) a))
  (- (acos a))
  (- a)
  (/ (/ PI 2) a)
  (/ (asin a) a)
  (/ (* (cbrt (acos a)) (/ (cbrt (acos a)) (cbrt a))) (cbrt a))
  (/ (cbrt (acos a)) (cbrt a))
  (/ (cbrt (acos a)) (/ (sqrt a) (cbrt (acos a))))
  (/ (cbrt (acos a)) (sqrt a))
  (* (cbrt (acos a)) (cbrt (acos a)))
  (/ (cbrt (acos a)) a)
  (/ (/ (sqrt (acos a)) (cbrt a)) (cbrt a))
  (/ (sqrt (acos a)) (cbrt a))
  (/ (sqrt (acos a)) (sqrt a))
  (/ (sqrt (acos a)) (sqrt a))
  (sqrt (acos a))
  (/ (sqrt (acos a)) a)
  (/ (/ 1 (cbrt a)) (cbrt a))
  (/ (acos a) (cbrt a))
  (/ 1 (sqrt a))
  (/ (acos a) (sqrt a))
  1
  (/ (acos a) a)
  (/ 1 a)
  (/ a (acos a))
  (/ (acos a) (* (cbrt a) (cbrt a)))
  (/ (acos a) (sqrt a))
  (acos a)
  (/ a (cbrt (acos a)))
  (/ a (sqrt (acos a)))
  (/ a (acos a))
  (- (/ a (acos a)))
  (- (/ a (acos a)))
  (- (/ a (acos a)))
  (/ (acos a) a)
  (/ (acos a) a)
  (/ (acos a) a)
16.030 * * * [progress]: adding candidates to table
16.328 * * [progress]: iteration 4 / 4
16.328 * * * [progress]: picking best candidate
16.339 * * * * [pick]: Picked  #<alt (λ (a) (/ (/ 1 (- (acos a))) (/ 1 a)))>
16.339 * * * [progress]: localizing error
16.350 * * * [progress]: generating rewritten candidates
16.350 * * * * [progress]: [ 1 / 2 ] rewriting at (2)
16.397 * * * * [progress]: [ 2 / 2 ] rewriting at (2 1)
16.462 * * * [progress]: generating series expansions
16.462 * * * * [progress]: [ 1 / 2 ] generating series at (2)
16.462 * [backup-simplify]: Simplify (/ (/ 1 (- (acos a))) (/ 1 a)) into (* -1 (/ a (acos a)))
16.462 * [approximate]: Taking taylor expansion of (* -1 (/ a (acos a))) in (a) around 0
16.462 * [taylor]: Taking taylor expansion of (* -1 (/ a (acos a))) in a
16.462 * [taylor]: Taking taylor expansion of -1 in a
16.462 * [backup-simplify]: Simplify -1 into -1
16.462 * [taylor]: Taking taylor expansion of (/ a (acos a)) in a
16.462 * [taylor]: Taking taylor expansion of a in a
16.462 * [backup-simplify]: Simplify 0 into 0
16.462 * [backup-simplify]: Simplify 1 into 1
16.462 * [taylor]: Taking taylor expansion of (acos a) in a
16.463 * [backup-simplify]: Simplify (acos a) into (acos a)
16.463 * [backup-simplify]: Simplify (/ 1 (acos a)) into (/ 1 (acos a))
16.463 * [taylor]: Taking taylor expansion of (* -1 (/ a (acos a))) in a
16.463 * [taylor]: Taking taylor expansion of -1 in a
16.463 * [backup-simplify]: Simplify -1 into -1
16.463 * [taylor]: Taking taylor expansion of (/ a (acos a)) in a
16.463 * [taylor]: Taking taylor expansion of a in a
16.463 * [backup-simplify]: Simplify 0 into 0
16.463 * [backup-simplify]: Simplify 1 into 1
16.463 * [taylor]: Taking taylor expansion of (acos a) in a
16.463 * [backup-simplify]: Simplify (acos a) into (acos a)
16.463 * [backup-simplify]: Simplify (/ 1 (acos a)) into (/ 1 (acos a))
16.463 * [backup-simplify]: Simplify (* -1 (/ 1 (acos a))) into (/ -1 (acos a))
16.463 * [backup-simplify]: Simplify (/ -1 (acos a)) into (/ -1 (acos a))
16.463 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))))) into 0
16.464 * [backup-simplify]: Simplify (+ (* -1 0) (* 0 (/ 1 (acos a)))) into 0
16.464 * [backup-simplify]: Simplify 0 into 0
16.464 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
16.465 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (* 0 (/ 1 (acos a))))) into 0
16.465 * [backup-simplify]: Simplify 0 into 0
16.466 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
16.467 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (acos a)))))) into 0
16.467 * [backup-simplify]: Simplify 0 into 0
16.467 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
16.469 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (acos a))))))) into 0
16.469 * [backup-simplify]: Simplify 0 into 0
16.469 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
16.471 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (acos a)))))))) into 0
16.471 * [backup-simplify]: Simplify 0 into 0
16.472 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
16.474 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (acos a))))))))) into 0
16.474 * [backup-simplify]: Simplify 0 into 0
16.474 * [backup-simplify]: Simplify (* (/ -1 (acos a)) a) into (* -1 (/ a (acos a)))
16.475 * [backup-simplify]: Simplify (/ (/ 1 (- (acos (/ 1 a)))) (/ 1 (/ 1 a))) into (/ -1 (* (acos (/ 1 a)) a))
16.475 * [approximate]: Taking taylor expansion of (/ -1 (* (acos (/ 1 a)) a)) in (a) around 0
16.475 * [taylor]: Taking taylor expansion of (/ -1 (* (acos (/ 1 a)) a)) in a
16.475 * [taylor]: Taking taylor expansion of -1 in a
16.475 * [backup-simplify]: Simplify -1 into -1
16.475 * [taylor]: Taking taylor expansion of (* (acos (/ 1 a)) a) in a
16.475 * [taylor]: Taking taylor expansion of (acos (/ 1 a)) in a
16.475 * [backup-simplify]: Simplify (acos (/ 1 a)) into (acos (/ 1 a))
16.475 * [taylor]: Taking taylor expansion of a in a
16.475 * [backup-simplify]: Simplify 0 into 0
16.475 * [backup-simplify]: Simplify 1 into 1
16.475 * [backup-simplify]: Simplify (* (acos (/ 1 a)) 0) into 0
16.476 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 1) (* 0 0)) into (acos (/ 1 a))
16.476 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
16.476 * [taylor]: Taking taylor expansion of (/ -1 (* (acos (/ 1 a)) a)) in a
16.476 * [taylor]: Taking taylor expansion of -1 in a
16.476 * [backup-simplify]: Simplify -1 into -1
16.476 * [taylor]: Taking taylor expansion of (* (acos (/ 1 a)) a) in a
16.476 * [taylor]: Taking taylor expansion of (acos (/ 1 a)) in a
16.476 * [backup-simplify]: Simplify (acos (/ 1 a)) into (acos (/ 1 a))
16.476 * [taylor]: Taking taylor expansion of a in a
16.476 * [backup-simplify]: Simplify 0 into 0
16.476 * [backup-simplify]: Simplify 1 into 1
16.476 * [backup-simplify]: Simplify (* (acos (/ 1 a)) 0) into 0
16.477 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 1) (* 0 0)) into (acos (/ 1 a))
16.477 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
16.477 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
16.478 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 1) (* 0 0))) into 0
16.478 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))))) into 0
16.478 * [backup-simplify]: Simplify 0 into 0
16.479 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
16.479 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
16.479 * [backup-simplify]: Simplify 0 into 0
16.480 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))) into 0
16.481 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
16.481 * [backup-simplify]: Simplify 0 into 0
16.482 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))))) into 0
16.482 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
16.482 * [backup-simplify]: Simplify 0 into 0
16.484 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))))) into 0
16.484 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
16.484 * [backup-simplify]: Simplify 0 into 0
16.486 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))))))) into 0
16.486 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
16.486 * [backup-simplify]: Simplify 0 into 0
16.487 * [backup-simplify]: Simplify (* (/ -1 (acos (/ 1 (/ 1 a)))) (/ 1 (/ 1 a))) into (* -1 (/ a (acos a)))
16.487 * [backup-simplify]: Simplify (/ (/ 1 (- (acos (/ 1 (- a))))) (/ 1 (/ 1 (- a)))) into (/ 1 (* a (acos (/ -1 a))))
16.487 * [approximate]: Taking taylor expansion of (/ 1 (* a (acos (/ -1 a)))) in (a) around 0
16.487 * [taylor]: Taking taylor expansion of (/ 1 (* a (acos (/ -1 a)))) in a
16.487 * [taylor]: Taking taylor expansion of (* a (acos (/ -1 a))) in a
16.487 * [taylor]: Taking taylor expansion of a in a
16.487 * [backup-simplify]: Simplify 0 into 0
16.487 * [backup-simplify]: Simplify 1 into 1
16.487 * [taylor]: Taking taylor expansion of (acos (/ -1 a)) in a
16.487 * [backup-simplify]: Simplify (acos (/ -1 a)) into (acos (/ -1 a))
16.487 * [backup-simplify]: Simplify (* 0 (acos (/ -1 a))) into 0
16.488 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 (acos (/ -1 a)))) into (acos (/ -1 a))
16.488 * [backup-simplify]: Simplify (/ 1 (acos (/ -1 a))) into (/ 1 (acos (/ -1 a)))
16.488 * [taylor]: Taking taylor expansion of (/ 1 (* a (acos (/ -1 a)))) in a
16.488 * [taylor]: Taking taylor expansion of (* a (acos (/ -1 a))) in a
16.488 * [taylor]: Taking taylor expansion of a in a
16.488 * [backup-simplify]: Simplify 0 into 0
16.488 * [backup-simplify]: Simplify 1 into 1
16.488 * [taylor]: Taking taylor expansion of (acos (/ -1 a)) in a
16.488 * [backup-simplify]: Simplify (acos (/ -1 a)) into (acos (/ -1 a))
16.488 * [backup-simplify]: Simplify (* 0 (acos (/ -1 a))) into 0
16.498 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 (acos (/ -1 a)))) into (acos (/ -1 a))
16.498 * [backup-simplify]: Simplify (/ 1 (acos (/ -1 a))) into (/ 1 (acos (/ -1 a)))
16.498 * [backup-simplify]: Simplify (/ 1 (acos (/ -1 a))) into (/ 1 (acos (/ -1 a)))
16.499 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (acos (/ -1 a))))) into 0
16.500 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))))) into 0
16.500 * [backup-simplify]: Simplify 0 into 0
16.501 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))) into 0
16.501 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
16.501 * [backup-simplify]: Simplify 0 into 0
16.503 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a))))))) into 0
16.503 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
16.503 * [backup-simplify]: Simplify 0 into 0
16.505 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))))) into 0
16.505 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
16.505 * [backup-simplify]: Simplify 0 into 0
16.507 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a))))))))) into 0
16.508 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
16.508 * [backup-simplify]: Simplify 0 into 0
16.510 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))))))) into 0
16.511 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
16.511 * [backup-simplify]: Simplify 0 into 0
16.511 * [backup-simplify]: Simplify (* (/ 1 (acos (/ -1 (/ 1 (- a))))) (/ 1 (/ 1 (- a)))) into (* -1 (/ a (acos a)))
16.511 * * * * [progress]: [ 2 / 2 ] generating series at (2 1)
16.512 * [backup-simplify]: Simplify (/ 1 (- (acos a))) into (/ -1 (acos a))
16.512 * [approximate]: Taking taylor expansion of (/ -1 (acos a)) in (a) around 0
16.512 * [taylor]: Taking taylor expansion of (/ -1 (acos a)) in a
16.512 * [taylor]: Taking taylor expansion of -1 in a
16.512 * [backup-simplify]: Simplify -1 into -1
16.512 * [taylor]: Taking taylor expansion of (acos a) in a
16.512 * [backup-simplify]: Simplify (acos a) into (acos a)
16.512 * [backup-simplify]: Simplify (/ -1 (acos a)) into (/ -1 (acos a))
16.512 * [taylor]: Taking taylor expansion of (/ -1 (acos a)) in a
16.512 * [taylor]: Taking taylor expansion of -1 in a
16.512 * [backup-simplify]: Simplify -1 into -1
16.512 * [taylor]: Taking taylor expansion of (acos a) in a
16.512 * [backup-simplify]: Simplify (acos a) into (acos a)
16.512 * [backup-simplify]: Simplify (/ -1 (acos a)) into (/ -1 (acos a))
16.512 * [backup-simplify]: Simplify (/ -1 (acos a)) into (/ -1 (acos a))
16.512 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ -1 (acos a)) (/ 0 (acos a))))) into 0
16.512 * [backup-simplify]: Simplify 0 into 0
16.513 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ -1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
16.513 * [backup-simplify]: Simplify 0 into 0
16.513 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ -1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
16.513 * [backup-simplify]: Simplify 0 into 0
16.513 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ -1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
16.514 * [backup-simplify]: Simplify 0 into 0
16.514 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ -1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
16.514 * [backup-simplify]: Simplify 0 into 0
16.514 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ -1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
16.514 * [backup-simplify]: Simplify 0 into 0
16.515 * [backup-simplify]: Simplify (/ -1 (acos a)) into (/ -1 (acos a))
16.515 * [backup-simplify]: Simplify (/ 1 (- (acos (/ 1 a)))) into (/ -1 (acos (/ 1 a)))
16.515 * [approximate]: Taking taylor expansion of (/ -1 (acos (/ 1 a))) in (a) around 0
16.515 * [taylor]: Taking taylor expansion of (/ -1 (acos (/ 1 a))) in a
16.515 * [taylor]: Taking taylor expansion of -1 in a
16.515 * [backup-simplify]: Simplify -1 into -1
16.515 * [taylor]: Taking taylor expansion of (acos (/ 1 a)) in a
16.515 * [backup-simplify]: Simplify (acos (/ 1 a)) into (acos (/ 1 a))
16.515 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
16.515 * [taylor]: Taking taylor expansion of (/ -1 (acos (/ 1 a))) in a
16.515 * [taylor]: Taking taylor expansion of -1 in a
16.515 * [backup-simplify]: Simplify -1 into -1
16.515 * [taylor]: Taking taylor expansion of (acos (/ 1 a)) in a
16.515 * [backup-simplify]: Simplify (acos (/ 1 a)) into (acos (/ 1 a))
16.515 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
16.515 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
16.515 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))))) into 0
16.515 * [backup-simplify]: Simplify 0 into 0
16.516 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
16.516 * [backup-simplify]: Simplify 0 into 0
16.516 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
16.516 * [backup-simplify]: Simplify 0 into 0
16.516 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
16.516 * [backup-simplify]: Simplify 0 into 0
16.517 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
16.517 * [backup-simplify]: Simplify 0 into 0
16.517 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
16.517 * [backup-simplify]: Simplify 0 into 0
16.517 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 (/ 1 a)))) into (/ -1 (acos a))
16.517 * [backup-simplify]: Simplify (/ 1 (- (acos (/ 1 (- a))))) into (/ -1 (acos (/ -1 a)))
16.517 * [approximate]: Taking taylor expansion of (/ -1 (acos (/ -1 a))) in (a) around 0
16.517 * [taylor]: Taking taylor expansion of (/ -1 (acos (/ -1 a))) in a
16.517 * [taylor]: Taking taylor expansion of -1 in a
16.517 * [backup-simplify]: Simplify -1 into -1
16.517 * [taylor]: Taking taylor expansion of (acos (/ -1 a)) in a
16.517 * [backup-simplify]: Simplify (acos (/ -1 a)) into (acos (/ -1 a))
16.517 * [backup-simplify]: Simplify (/ -1 (acos (/ -1 a))) into (/ -1 (acos (/ -1 a)))
16.517 * [taylor]: Taking taylor expansion of (/ -1 (acos (/ -1 a))) in a
16.517 * [taylor]: Taking taylor expansion of -1 in a
16.517 * [backup-simplify]: Simplify -1 into -1
16.517 * [taylor]: Taking taylor expansion of (acos (/ -1 a)) in a
16.517 * [backup-simplify]: Simplify (acos (/ -1 a)) into (acos (/ -1 a))
16.518 * [backup-simplify]: Simplify (/ -1 (acos (/ -1 a))) into (/ -1 (acos (/ -1 a)))
16.518 * [backup-simplify]: Simplify (/ -1 (acos (/ -1 a))) into (/ -1 (acos (/ -1 a)))
16.518 * [backup-simplify]: Simplify (- (/ 0 (acos (/ -1 a))) (+ (* (/ -1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))))) into 0
16.518 * [backup-simplify]: Simplify 0 into 0
16.518 * [backup-simplify]: Simplify (- (/ 0 (acos (/ -1 a))) (+ (* (/ -1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
16.518 * [backup-simplify]: Simplify 0 into 0
16.518 * [backup-simplify]: Simplify (- (/ 0 (acos (/ -1 a))) (+ (* (/ -1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
16.518 * [backup-simplify]: Simplify 0 into 0
16.519 * [backup-simplify]: Simplify (- (/ 0 (acos (/ -1 a))) (+ (* (/ -1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
16.519 * [backup-simplify]: Simplify 0 into 0
16.519 * [backup-simplify]: Simplify (- (/ 0 (acos (/ -1 a))) (+ (* (/ -1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
16.519 * [backup-simplify]: Simplify 0 into 0
16.519 * [backup-simplify]: Simplify (- (/ 0 (acos (/ -1 a))) (+ (* (/ -1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
16.519 * [backup-simplify]: Simplify 0 into 0
16.520 * [backup-simplify]: Simplify (/ -1 (acos (/ -1 (/ 1 (- a))))) into (/ -1 (acos a))
16.520 * * * [progress]: simplifying candidates
16.535 * [simplify]: Simplifying:
  (expm1 (/ (/ 1 (- (acos a))) (/ 1 a)))
  (log1p (/ (/ 1 (- (acos a))) (/ 1 a)))
  (- (- (log (- (acos a)))) (- (log a)))
  (- (- (log (- (acos a)))) (- 0 (log a)))
  (- (- (log (- (acos a)))) (- (log 1) (log a)))
  (- (- (log (- (acos a)))) (log (/ 1 a)))
  (- (- 0 (log (- (acos a)))) (- (log a)))
  (- (- 0 (log (- (acos a)))) (- 0 (log a)))
  (- (- 0 (log (- (acos a)))) (- (log 1) (log a)))
  (- (- 0 (log (- (acos a)))) (log (/ 1 a)))
  (- (- (log 1) (log (- (acos a)))) (- (log a)))
  (- (- (log 1) (log (- (acos a)))) (- 0 (log a)))
  (- (- (log 1) (log (- (acos a)))) (- (log 1) (log a)))
  (- (- (log 1) (log (- (acos a)))) (log (/ 1 a)))
  (- (log (/ 1 (- (acos a)))) (- (log a)))
  (- (log (/ 1 (- (acos a)))) (- 0 (log a)))
  (- (log (/ 1 (- (acos a)))) (- (log 1) (log a)))
  (- (log (/ 1 (- (acos a)))) (log (/ 1 a)))
  (log (/ (/ 1 (- (acos a))) (/ 1 a)))
  (exp (/ (/ 1 (- (acos a))) (/ 1 a)))
  (/ (/ (* (* 1 1) 1) (* (* (- (acos a)) (- (acos a))) (- (acos a)))) (/ (* (* 1 1) 1) (* (* a a) a)))
  (/ (/ (* (* 1 1) 1) (* (* (- (acos a)) (- (acos a))) (- (acos a)))) (* (* (/ 1 a) (/ 1 a)) (/ 1 a)))
  (/ (* (* (/ 1 (- (acos a))) (/ 1 (- (acos a)))) (/ 1 (- (acos a)))) (/ (* (* 1 1) 1) (* (* a a) a)))
  (/ (* (* (/ 1 (- (acos a))) (/ 1 (- (acos a)))) (/ 1 (- (acos a)))) (* (* (/ 1 a) (/ 1 a)) (/ 1 a)))
  (* (cbrt (/ (/ 1 (- (acos a))) (/ 1 a))) (cbrt (/ (/ 1 (- (acos a))) (/ 1 a))))
  (cbrt (/ (/ 1 (- (acos a))) (/ 1 a)))
  (* (* (/ (/ 1 (- (acos a))) (/ 1 a)) (/ (/ 1 (- (acos a))) (/ 1 a))) (/ (/ 1 (- (acos a))) (/ 1 a)))
  (sqrt (/ (/ 1 (- (acos a))) (/ 1 a)))
  (sqrt (/ (/ 1 (- (acos a))) (/ 1 a)))
  (- (/ 1 (- (acos a))))
  (- (/ 1 a))
  (/ (* (cbrt (/ 1 (- (acos a)))) (cbrt (/ 1 (- (acos a))))) (* (cbrt (/ 1 a)) (cbrt (/ 1 a))))
  (/ (cbrt (/ 1 (- (acos a)))) (cbrt (/ 1 a)))
  (/ (* (cbrt (/ 1 (- (acos a)))) (cbrt (/ 1 (- (acos a))))) (sqrt (/ 1 a)))
  (/ (cbrt (/ 1 (- (acos a)))) (sqrt (/ 1 a)))
  (/ (* (cbrt (/ 1 (- (acos a)))) (cbrt (/ 1 (- (acos a))))) (/ (* (cbrt 1) (cbrt 1)) (* (cbrt a) (cbrt a))))
  (/ (cbrt (/ 1 (- (acos a)))) (/ (cbrt 1) (cbrt a)))
  (/ (* (cbrt (/ 1 (- (acos a)))) (cbrt (/ 1 (- (acos a))))) (/ (* (cbrt 1) (cbrt 1)) (sqrt a)))
  (/ (cbrt (/ 1 (- (acos a)))) (/ (cbrt 1) (sqrt a)))
  (/ (* (cbrt (/ 1 (- (acos a)))) (cbrt (/ 1 (- (acos a))))) (/ (* (cbrt 1) (cbrt 1)) 1))
  (/ (cbrt (/ 1 (- (acos a)))) (/ (cbrt 1) a))
  (/ (* (cbrt (/ 1 (- (acos a)))) (cbrt (/ 1 (- (acos a))))) (/ (sqrt 1) (* (cbrt a) (cbrt a))))
  (/ (cbrt (/ 1 (- (acos a)))) (/ (sqrt 1) (cbrt a)))
  (/ (* (cbrt (/ 1 (- (acos a)))) (cbrt (/ 1 (- (acos a))))) (/ (sqrt 1) (sqrt a)))
  (/ (cbrt (/ 1 (- (acos a)))) (/ (sqrt 1) (sqrt a)))
  (/ (* (cbrt (/ 1 (- (acos a)))) (cbrt (/ 1 (- (acos a))))) (/ (sqrt 1) 1))
  (/ (cbrt (/ 1 (- (acos a)))) (/ (sqrt 1) a))
  (/ (* (cbrt (/ 1 (- (acos a)))) (cbrt (/ 1 (- (acos a))))) (/ 1 (* (cbrt a) (cbrt a))))
  (/ (cbrt (/ 1 (- (acos a)))) (/ 1 (cbrt a)))
  (/ (* (cbrt (/ 1 (- (acos a)))) (cbrt (/ 1 (- (acos a))))) (/ 1 (sqrt a)))
  (/ (cbrt (/ 1 (- (acos a)))) (/ 1 (sqrt a)))
  (/ (* (cbrt (/ 1 (- (acos a)))) (cbrt (/ 1 (- (acos a))))) (/ 1 1))
  (/ (cbrt (/ 1 (- (acos a)))) (/ 1 a))
  (/ (* (cbrt (/ 1 (- (acos a)))) (cbrt (/ 1 (- (acos a))))) 1)
  (/ (cbrt (/ 1 (- (acos a)))) (/ 1 a))
  (/ (* (cbrt (/ 1 (- (acos a)))) (cbrt (/ 1 (- (acos a))))) 1)
  (/ (cbrt (/ 1 (- (acos a)))) (/ 1 a))
  (/ (sqrt (/ 1 (- (acos a)))) (* (cbrt (/ 1 a)) (cbrt (/ 1 a))))
  (/ (sqrt (/ 1 (- (acos a)))) (cbrt (/ 1 a)))
  (/ (sqrt (/ 1 (- (acos a)))) (sqrt (/ 1 a)))
  (/ (sqrt (/ 1 (- (acos a)))) (sqrt (/ 1 a)))
  (/ (sqrt (/ 1 (- (acos a)))) (/ (* (cbrt 1) (cbrt 1)) (* (cbrt a) (cbrt a))))
  (/ (sqrt (/ 1 (- (acos a)))) (/ (cbrt 1) (cbrt a)))
  (/ (sqrt (/ 1 (- (acos a)))) (/ (* (cbrt 1) (cbrt 1)) (sqrt a)))
  (/ (sqrt (/ 1 (- (acos a)))) (/ (cbrt 1) (sqrt a)))
  (/ (sqrt (/ 1 (- (acos a)))) (/ (* (cbrt 1) (cbrt 1)) 1))
  (/ (sqrt (/ 1 (- (acos a)))) (/ (cbrt 1) a))
  (/ (sqrt (/ 1 (- (acos a)))) (/ (sqrt 1) (* (cbrt a) (cbrt a))))
  (/ (sqrt (/ 1 (- (acos a)))) (/ (sqrt 1) (cbrt a)))
  (/ (sqrt (/ 1 (- (acos a)))) (/ (sqrt 1) (sqrt a)))
  (/ (sqrt (/ 1 (- (acos a)))) (/ (sqrt 1) (sqrt a)))
  (/ (sqrt (/ 1 (- (acos a)))) (/ (sqrt 1) 1))
  (/ (sqrt (/ 1 (- (acos a)))) (/ (sqrt 1) a))
  (/ (sqrt (/ 1 (- (acos a)))) (/ 1 (* (cbrt a) (cbrt a))))
  (/ (sqrt (/ 1 (- (acos a)))) (/ 1 (cbrt a)))
  (/ (sqrt (/ 1 (- (acos a)))) (/ 1 (sqrt a)))
  (/ (sqrt (/ 1 (- (acos a)))) (/ 1 (sqrt a)))
  (/ (sqrt (/ 1 (- (acos a)))) (/ 1 1))
  (/ (sqrt (/ 1 (- (acos a)))) (/ 1 a))
  (/ (sqrt (/ 1 (- (acos a)))) 1)
  (/ (sqrt (/ 1 (- (acos a)))) (/ 1 a))
  (/ (sqrt (/ 1 (- (acos a)))) 1)
  (/ (sqrt (/ 1 (- (acos a)))) (/ 1 a))
  (/ (/ (* (cbrt 1) (cbrt 1)) (* (cbrt (- (acos a))) (cbrt (- (acos a))))) (* (cbrt (/ 1 a)) (cbrt (/ 1 a))))
  (/ (/ (cbrt 1) (cbrt (- (acos a)))) (cbrt (/ 1 a)))
  (/ (/ (* (cbrt 1) (cbrt 1)) (* (cbrt (- (acos a))) (cbrt (- (acos a))))) (sqrt (/ 1 a)))
  (/ (/ (cbrt 1) (cbrt (- (acos a)))) (sqrt (/ 1 a)))
  (/ (/ (* (cbrt 1) (cbrt 1)) (* (cbrt (- (acos a))) (cbrt (- (acos a))))) (/ (* (cbrt 1) (cbrt 1)) (* (cbrt a) (cbrt a))))
  (/ (/ (cbrt 1) (cbrt (- (acos a)))) (/ (cbrt 1) (cbrt a)))
  (/ (/ (* (cbrt 1) (cbrt 1)) (* (cbrt (- (acos a))) (cbrt (- (acos a))))) (/ (* (cbrt 1) (cbrt 1)) (sqrt a)))
  (/ (/ (cbrt 1) (cbrt (- (acos a)))) (/ (cbrt 1) (sqrt a)))
  (/ (/ (* (cbrt 1) (cbrt 1)) (* (cbrt (- (acos a))) (cbrt (- (acos a))))) (/ (* (cbrt 1) (cbrt 1)) 1))
  (/ (/ (cbrt 1) (cbrt (- (acos a)))) (/ (cbrt 1) a))
  (/ (/ (* (cbrt 1) (cbrt 1)) (* (cbrt (- (acos a))) (cbrt (- (acos a))))) (/ (sqrt 1) (* (cbrt a) (cbrt a))))
  (/ (/ (cbrt 1) (cbrt (- (acos a)))) (/ (sqrt 1) (cbrt a)))
  (/ (/ (* (cbrt 1) (cbrt 1)) (* (cbrt (- (acos a))) (cbrt (- (acos a))))) (/ (sqrt 1) (sqrt a)))
  (/ (/ (cbrt 1) (cbrt (- (acos a)))) (/ (sqrt 1) (sqrt a)))
  (/ (/ (* (cbrt 1) (cbrt 1)) (* (cbrt (- (acos a))) (cbrt (- (acos a))))) (/ (sqrt 1) 1))
  (/ (/ (cbrt 1) (cbrt (- (acos a)))) (/ (sqrt 1) a))
  (/ (/ (* (cbrt 1) (cbrt 1)) (* (cbrt (- (acos a))) (cbrt (- (acos a))))) (/ 1 (* (cbrt a) (cbrt a))))
  (/ (/ (cbrt 1) (cbrt (- (acos a)))) (/ 1 (cbrt a)))
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  (/ (- (acos a)) (cbrt 1))
  (/ (- (acos a)) (sqrt 1))
  (/ (- (acos a)) 1)
  (* -1 (/ a (acos a)))
  (* -1 (/ a (acos a)))
  (* -1 (/ a (acos a)))
  (/ -1 (acos a))
  (/ -1 (acos a))
  (/ -1 (acos a))
16.566 * * [simplify]: Extracting # 0 : cost  0
16.568 * * [simplify]: Extracting # 1 : cost  0
16.571 * * [simplify]: Extracting # 2 : cost  0
16.574 * * [simplify]: Extracting # 3 : cost  0
16.577 * * [simplify]: Extracting # 4 : cost  0
16.579 * * [simplify]: Extracting # 5 : cost  0
16.582 * * [simplify]: Extracting # 6 : cost  0
16.590 * * [simplify]: Extracting # 7 : cost  0
16.592 * * [simplify]: iteration  0 :  811  enodes  (cost  12543 )
17.795 * * [simplify]: Extracting # 0 : cost  0
17.803 * * [simplify]: Extracting # 1 : cost  0
17.804 * * [simplify]: Extracting # 2 : cost  0
17.806 * * [simplify]: Extracting # 3 : cost  0
17.809 * * [simplify]: iteration  1 :  2350  enodes  (cost  8820 )
18.198 * * [simplify]: Extracting # 0 : cost  0
18.208 * * [simplify]: Extracting # 1 : cost  0
18.211 * * [simplify]: Extracting # 2 : cost  0
18.214 * * [simplify]: Extracting # 3 : cost  0
18.216 * * [simplify]: iteration  2 :  3262  enodes  (cost  7448 )
19.101 * * [simplify]: Extracting # 0 : cost  0
19.108 * * [simplify]: Extracting # 1 : cost  0
19.114 * * [simplify]: Extracting # 2 : cost  0
19.120 * * [simplify]: Extracting # 3 : cost  0
19.125 * * [simplify]: Extracting # 4 : cost  0
19.131 * * [simplify]: Extracting # 5 : cost  0
19.136 * * [simplify]: Extracting # 6 : cost  0
19.142 * * [simplify]: iteration done:  5000  enodes  (cost  7226 )
19.149 * [simplify]: Simplified to:
  (expm1 (/ a (- (acos a))))
  (log1p (/ a (- (acos a))))
  (log (/ a (- (acos a))))
  (log (/ a (- (acos a))))
  (log (/ a (- (acos a))))
  (log (/ a (- (acos a))))
  (log (/ a (- (acos a))))
  (log (/ a (- (acos a))))
  (log (/ a (- (acos a))))
  (log (/ a (- (acos a))))
  (log (/ a (- (acos a))))
  (log (/ a (- (acos a))))
  (log (/ a (- (acos a))))
  (log (/ a (- (acos a))))
  (log (/ a (- (acos a))))
  (log (/ a (- (acos a))))
  (log (/ a (- (acos a))))
  (log (/ a (- (acos a))))
  (log (/ a (- (acos a))))
  (exp (/ a (- (acos a))))
  (pow (/ a (- (acos a))) 3)
  (pow (/ a (- (acos a))) 3)
  (pow (/ a (- (acos a))) 3)
  (pow (/ a (- (acos a))) 3)
  (* (cbrt (/ a (- (acos a)))) (cbrt (/ a (- (acos a)))))
  (cbrt (/ a (- (acos a))))
  (pow (/ a (- (acos a))) 3)
  (sqrt (/ a (- (acos a))))
  (sqrt (/ a (- (acos a))))
  (/ -1 (- (acos a)))
  (/ -1 a)
  (/ (* (cbrt (/ 1 (- (acos a)))) (cbrt (/ 1 (- (acos a))))) (* (cbrt (/ 1 a)) (cbrt (/ 1 a))))
  (/ (cbrt (/ 1 (- (acos a)))) (cbrt (/ 1 a)))
  (/ (* (cbrt (/ 1 (- (acos a)))) (cbrt (/ 1 (- (acos a))))) (sqrt (/ 1 a)))
  (/ (cbrt (/ 1 (- (acos a)))) (sqrt (/ 1 a)))
  (* (* (cbrt (/ 1 (- (acos a)))) (cbrt (/ 1 (- (acos a))))) (* (cbrt a) (cbrt a)))
  (* (cbrt a) (cbrt (/ 1 (- (acos a)))))
  (* (* (cbrt (/ 1 (- (acos a)))) (cbrt (/ 1 (- (acos a))))) (sqrt a))
  (* (cbrt (/ 1 (- (acos a)))) (sqrt a))
  (* (cbrt (/ 1 (- (acos a)))) (cbrt (/ 1 (- (acos a)))))
  (* (cbrt (/ 1 (- (acos a)))) a)
  (* (* (cbrt (/ 1 (- (acos a)))) (cbrt (/ 1 (- (acos a))))) (* (cbrt a) (cbrt a)))
  (* (cbrt a) (cbrt (/ 1 (- (acos a)))))
  (* (* (cbrt (/ 1 (- (acos a)))) (cbrt (/ 1 (- (acos a))))) (sqrt a))
  (* (cbrt (/ 1 (- (acos a)))) (sqrt a))
  (* (cbrt (/ 1 (- (acos a)))) (cbrt (/ 1 (- (acos a)))))
  (* (cbrt (/ 1 (- (acos a)))) a)
  (* (* (cbrt (/ 1 (- (acos a)))) (cbrt (/ 1 (- (acos a))))) (* (cbrt a) (cbrt a)))
  (* (cbrt a) (cbrt (/ 1 (- (acos a)))))
  (* (* (cbrt (/ 1 (- (acos a)))) (cbrt (/ 1 (- (acos a))))) (sqrt a))
  (* (cbrt (/ 1 (- (acos a)))) (sqrt a))
  (* (cbrt (/ 1 (- (acos a)))) (cbrt (/ 1 (- (acos a)))))
  (* (cbrt (/ 1 (- (acos a)))) a)
  (* (cbrt (/ 1 (- (acos a)))) (cbrt (/ 1 (- (acos a)))))
  (* (cbrt (/ 1 (- (acos a)))) a)
  (* (cbrt (/ 1 (- (acos a)))) (cbrt (/ 1 (- (acos a)))))
  (* (cbrt (/ 1 (- (acos a)))) a)
  (/ (sqrt (/ 1 (- (acos a)))) (* (cbrt (/ 1 a)) (cbrt (/ 1 a))))
  (/ (sqrt (/ 1 (- (acos a)))) (cbrt (/ 1 a)))
  (/ (sqrt (/ 1 (- (acos a)))) (sqrt (/ 1 a)))
  (/ (sqrt (/ 1 (- (acos a)))) (sqrt (/ 1 a)))
  (* (sqrt (/ 1 (- (acos a)))) (* (cbrt a) (cbrt a)))
  (* (sqrt (/ 1 (- (acos a)))) (cbrt a))
  (* (sqrt (/ 1 (- (acos a)))) (sqrt a))
  (* (sqrt (/ 1 (- (acos a)))) (sqrt a))
  (sqrt (/ 1 (- (acos a))))
  (* (sqrt (/ 1 (- (acos a)))) a)
  (* (sqrt (/ 1 (- (acos a)))) (* (cbrt a) (cbrt a)))
  (* (sqrt (/ 1 (- (acos a)))) (cbrt a))
  (* (sqrt (/ 1 (- (acos a)))) (sqrt a))
  (* (sqrt (/ 1 (- (acos a)))) (sqrt a))
  (sqrt (/ 1 (- (acos a))))
  (* (sqrt (/ 1 (- (acos a)))) a)
  (* (sqrt (/ 1 (- (acos a)))) (* (cbrt a) (cbrt a)))
  (* (sqrt (/ 1 (- (acos a)))) (cbrt a))
  (* (sqrt (/ 1 (- (acos a)))) (sqrt a))
  (* (sqrt (/ 1 (- (acos a)))) (sqrt a))
  (sqrt (/ 1 (- (acos a))))
  (* (sqrt (/ 1 (- (acos a)))) a)
  (sqrt (/ 1 (- (acos a))))
  (* (sqrt (/ 1 (- (acos a)))) a)
  (sqrt (/ 1 (- (acos a))))
  (* (sqrt (/ 1 (- (acos a)))) a)
  (/ (/ 1 (* (cbrt (- (acos a))) (cbrt (- (acos a))))) (* (cbrt (/ 1 a)) (cbrt (/ 1 a))))
  (/ (/ 1 (cbrt (- (acos a)))) (cbrt (/ 1 a)))
  (/ (/ 1 (* (cbrt (- (acos a))) (cbrt (- (acos a))))) (sqrt (/ 1 a)))
  (/ (/ 1 (cbrt (- (acos a)))) (sqrt (/ 1 a)))
  (/ (* (cbrt a) (cbrt a)) (* (cbrt (- (acos a))) (cbrt (- (acos a)))))
  (/ (cbrt a) (cbrt (- (acos a))))
  (/ (/ (sqrt a) (cbrt (- (acos a)))) (cbrt (- (acos a))))
  (/ (sqrt a) (cbrt (- (acos a))))
  (/ 1 (* (cbrt (- (acos a))) (cbrt (- (acos a)))))
  (/ a (cbrt (- (acos a))))
  (/ (* (cbrt a) (cbrt a)) (* (cbrt (- (acos a))) (cbrt (- (acos a)))))
  (/ (cbrt a) (cbrt (- (acos a))))
  (/ (/ (sqrt a) (cbrt (- (acos a)))) (cbrt (- (acos a))))
  (/ (sqrt a) (cbrt (- (acos a))))
  (/ 1 (* (cbrt (- (acos a))) (cbrt (- (acos a)))))
  (/ a (cbrt (- (acos a))))
  (/ (* (cbrt a) (cbrt a)) (* (cbrt (- (acos a))) (cbrt (- (acos a)))))
  (/ (cbrt a) (cbrt (- (acos a))))
  (/ (/ (sqrt a) (cbrt (- (acos a)))) (cbrt (- (acos a))))
  (/ (sqrt a) (cbrt (- (acos a))))
  (/ 1 (* (cbrt (- (acos a))) (cbrt (- (acos a)))))
  (/ a (cbrt (- (acos a))))
  (/ 1 (* (cbrt (- (acos a))) (cbrt (- (acos a)))))
  (/ a (cbrt (- (acos a))))
  (/ 1 (* (cbrt (- (acos a))) (cbrt (- (acos a)))))
  (/ a (cbrt (- (acos a))))
  (/ (/ 1 (sqrt (- (acos a)))) (* (cbrt (/ 1 a)) (cbrt (/ 1 a))))
  (/ (/ 1 (sqrt (- (acos a)))) (cbrt (/ 1 a)))
  (/ (/ 1 (sqrt (- (acos a)))) (sqrt (/ 1 a)))
  (/ (/ 1 (sqrt (- (acos a)))) (sqrt (/ 1 a)))
  (/ (* (cbrt a) (cbrt a)) (sqrt (- (acos a))))
  (/ (cbrt a) (sqrt (- (acos a))))
  (/ (sqrt a) (sqrt (- (acos a))))
  (/ (sqrt a) (sqrt (- (acos a))))
  (/ 1 (sqrt (- (acos a))))
  (/ a (sqrt (- (acos a))))
  (/ (* (cbrt a) (cbrt a)) (sqrt (- (acos a))))
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  (/ (sqrt a) (sqrt (- (acos a))))
  (/ (sqrt a) (sqrt (- (acos a))))
  (/ 1 (sqrt (- (acos a))))
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  (/ (* (cbrt a) (cbrt a)) (sqrt (- (acos a))))
  (/ (cbrt a) (sqrt (- (acos a))))
  (/ (sqrt a) (sqrt (- (acos a))))
  (/ (sqrt a) (sqrt (- (acos a))))
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  (/ a (sqrt (- (acos a))))
  (/ 1 (* (cbrt (/ 1 a)) (cbrt (/ 1 a))))
  (/ (/ 1 (- (acos a))) (cbrt (/ 1 a)))
  (/ 1 (sqrt (/ 1 a)))
  (/ (/ 1 (- (acos a))) (sqrt (/ 1 a)))
  (* (cbrt a) (cbrt a))
  (/ (cbrt a) (- (acos a)))
  (sqrt a)
  (/ (sqrt a) (- (acos a)))
  1
  (/ a (- (acos a)))
  (* (cbrt a) (cbrt a))
  (/ (cbrt a) (- (acos a)))
  (sqrt a)
  (/ (sqrt a) (- (acos a)))
  1
  (/ a (- (acos a)))
  (* (cbrt a) (cbrt a))
  (/ (cbrt a) (- (acos a)))
  (sqrt a)
  (/ (sqrt a) (- (acos a)))
  1
  (/ a (- (acos a)))
  1
  (/ a (- (acos a)))
  1
  (/ a (- (acos a)))
  (/ -1 (* (cbrt (/ 1 a)) (cbrt (/ 1 a))))
  (/ (/ 1 (acos a)) (cbrt (/ 1 a)))
  (/ -1 (sqrt (/ 1 a)))
  (/ (/ 1 (acos a)) (sqrt (/ 1 a)))
  (- (* (cbrt a) (cbrt a)))
  (/ (cbrt a) (acos a))
  (- (sqrt a))
  (/ (sqrt a) (acos a))
  -1
  (/ a (acos a))
  (- (* (cbrt a) (cbrt a)))
  (/ (cbrt a) (acos a))
  (- (sqrt a))
  (/ (sqrt a) (acos a))
  -1
  (/ a (acos a))
  (- (* (cbrt a) (cbrt a)))
  (/ (cbrt a) (acos a))
  (- (sqrt a))
  (/ (sqrt a) (acos a))
  -1
  (/ a (acos a))
  -1
  (/ a (acos a))
  -1
  (/ a (acos a))
  (/ (/ 1 (- (* (cbrt (acos a)) (cbrt (acos a))))) (* (cbrt (/ 1 a)) (cbrt (/ 1 a))))
  (/ (/ 1 (cbrt (acos a))) (cbrt (/ 1 a)))
  (/ (/ 1 (- (* (cbrt (acos a)) (cbrt (acos a))))) (sqrt (/ 1 a)))
  (/ (/ 1 (cbrt (acos a))) (sqrt (/ 1 a)))
  (/ (* (cbrt a) (cbrt a)) (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (/ (cbrt a) (cbrt (acos a)))
  (/ (sqrt a) (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (/ (sqrt a) (cbrt (acos a)))
  (/ 1 (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (/ a (cbrt (acos a)))
  (/ (* (cbrt a) (cbrt a)) (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (/ (cbrt a) (cbrt (acos a)))
  (/ (sqrt a) (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (/ (sqrt a) (cbrt (acos a)))
  (/ 1 (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (/ a (cbrt (acos a)))
  (/ (* (cbrt a) (cbrt a)) (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (/ (cbrt a) (cbrt (acos a)))
  (/ (sqrt a) (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (/ (sqrt a) (cbrt (acos a)))
  (/ 1 (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (/ a (cbrt (acos a)))
  (/ 1 (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (/ a (cbrt (acos a)))
  (/ 1 (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (/ a (cbrt (acos a)))
  (/ (/ (/ 1 (- (sqrt (acos a)))) (cbrt (/ 1 a))) (cbrt (/ 1 a)))
  (/ (/ 1 (sqrt (acos a))) (cbrt (/ 1 a)))
  (/ (/ 1 (- (sqrt (acos a)))) (sqrt (/ 1 a)))
  (/ (/ 1 (sqrt (acos a))) (sqrt (/ 1 a)))
  (/ (* (cbrt a) (cbrt a)) (- (sqrt (acos a))))
  (/ (cbrt a) (sqrt (acos a)))
  (/ (sqrt a) (- (sqrt (acos a))))
  (/ (sqrt a) (sqrt (acos a)))
  (/ 1 (- (sqrt (acos a))))
  (/ a (sqrt (acos a)))
  (/ (* (cbrt a) (cbrt a)) (- (sqrt (acos a))))
  (/ (cbrt a) (sqrt (acos a)))
  (/ (sqrt a) (- (sqrt (acos a))))
  (/ (sqrt a) (sqrt (acos a)))
  (/ 1 (- (sqrt (acos a))))
  (/ a (sqrt (acos a)))
  (/ (* (cbrt a) (cbrt a)) (- (sqrt (acos a))))
  (/ (cbrt a) (sqrt (acos a)))
  (/ (sqrt a) (- (sqrt (acos a))))
  (/ (sqrt a) (sqrt (acos a)))
  (/ 1 (- (sqrt (acos a))))
  (/ a (sqrt (acos a)))
  (/ 1 (- (sqrt (acos a))))
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  (/ 1 (- (sqrt (acos a))))
  (/ a (sqrt (acos a)))
  (/ -1 (* (cbrt (/ 1 a)) (cbrt (/ 1 a))))
  (/ (/ 1 (acos a)) (cbrt (/ 1 a)))
  (/ -1 (sqrt (/ 1 a)))
  (/ (/ 1 (acos a)) (sqrt (/ 1 a)))
  (- (* (cbrt a) (cbrt a)))
  (/ (cbrt a) (acos a))
  (- (sqrt a))
  (/ (sqrt a) (acos a))
  -1
  (/ a (acos a))
  (- (* (cbrt a) (cbrt a)))
  (/ (cbrt a) (acos a))
  (- (sqrt a))
  (/ (sqrt a) (acos a))
  -1
  (/ a (acos a))
  (- (* (cbrt a) (cbrt a)))
  (/ (cbrt a) (acos a))
  (- (sqrt a))
  (/ (sqrt a) (acos a))
  -1
  (/ a (acos a))
  -1
  (/ a (acos a))
  -1
  (/ a (acos a))
  (/ (/ 1 (* (cbrt (acos a)) (cbrt (acos a)))) (* (cbrt (/ 1 a)) (cbrt (/ 1 a))))
  (/ (/ 1 (- (cbrt (acos a)))) (cbrt (/ 1 a)))
  (/ (/ 1 (* (cbrt (acos a)) (cbrt (acos a)))) (sqrt (/ 1 a)))
  (/ (/ 1 (- (cbrt (acos a)))) (sqrt (/ 1 a)))
  (/ (* (cbrt a) (cbrt a)) (* (cbrt (acos a)) (cbrt (acos a))))
  (/ (cbrt a) (- (cbrt (acos a))))
  (/ (/ (sqrt a) (cbrt (acos a))) (cbrt (acos a)))
  (/ (sqrt a) (- (cbrt (acos a))))
  (/ 1 (* (cbrt (acos a)) (cbrt (acos a))))
  (/ a (- (cbrt (acos a))))
  (/ (* (cbrt a) (cbrt a)) (* (cbrt (acos a)) (cbrt (acos a))))
  (/ (cbrt a) (- (cbrt (acos a))))
  (/ (/ (sqrt a) (cbrt (acos a))) (cbrt (acos a)))
  (/ (sqrt a) (- (cbrt (acos a))))
  (/ 1 (* (cbrt (acos a)) (cbrt (acos a))))
  (/ a (- (cbrt (acos a))))
  (/ (* (cbrt a) (cbrt a)) (* (cbrt (acos a)) (cbrt (acos a))))
  (/ (cbrt a) (- (cbrt (acos a))))
  (/ (/ (sqrt a) (cbrt (acos a))) (cbrt (acos a)))
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  (/ 1 (* (cbrt (acos a)) (cbrt (acos a))))
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  (/ (/ 1 (sqrt (acos a))) (* (cbrt (/ 1 a)) (cbrt (/ 1 a))))
  (/ (/ 1 (- (sqrt (acos a)))) (cbrt (/ 1 a)))
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  (/ (* (cbrt a) (cbrt a)) (sqrt (acos a)))
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  (/ (* (cbrt a) (cbrt a)) (sqrt (acos a)))
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  (/ (sqrt a) (sqrt (acos a)))
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  (/ 1 (sqrt (acos a)))
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  (/ (* (cbrt a) (cbrt a)) (sqrt (acos a)))
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  (/ 1 (* (cbrt (/ 1 a)) (cbrt (/ 1 a))))
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  (/ 1 (sqrt (/ 1 a)))
  (/ (/ 1 (- (acos a))) (sqrt (/ 1 a)))
  (* (cbrt a) (cbrt a))
  (/ (cbrt a) (- (acos a)))
  (sqrt a)
  (/ (sqrt a) (- (acos a)))
  1
  (/ a (- (acos a)))
  (* (cbrt a) (cbrt a))
  (/ (cbrt a) (- (acos a)))
  (sqrt a)
  (/ (sqrt a) (- (acos a)))
  1
  (/ a (- (acos a)))
  (* (cbrt a) (cbrt a))
  (/ (cbrt a) (- (acos a)))
  (sqrt a)
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  1
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  1
  (/ a (- (acos a)))
  1
  (/ a (- (acos a)))
  (/ (/ 1 (* (cbrt (- (acos a))) (cbrt (- (acos a))))) (* (cbrt (/ 1 a)) (cbrt (/ 1 a))))
  (/ (/ 1 (cbrt (- (acos a)))) (cbrt (/ 1 a)))
  (/ (/ 1 (* (cbrt (- (acos a))) (cbrt (- (acos a))))) (sqrt (/ 1 a)))
  (/ (/ 1 (cbrt (- (acos a)))) (sqrt (/ 1 a)))
  (/ (* (cbrt a) (cbrt a)) (* (cbrt (- (acos a))) (cbrt (- (acos a)))))
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  (/ 1 (* (cbrt (/ 1 a)) (cbrt (/ 1 a))))
  (/ (/ 1 (- (acos a))) (cbrt (/ 1 a)))
  (/ 1 (sqrt (/ 1 a)))
  (/ (/ 1 (- (acos a))) (sqrt (/ 1 a)))
  (* (cbrt a) (cbrt a))
  (/ (cbrt a) (- (acos a)))
  (sqrt a)
  (/ (sqrt a) (- (acos a)))
  1
  (/ a (- (acos a)))
  (* (cbrt a) (cbrt a))
  (/ (cbrt a) (- (acos a)))
  (sqrt a)
  (/ (sqrt a) (- (acos a)))
  1
  (/ a (- (acos a)))
  (* (cbrt a) (cbrt a))
  (/ (cbrt a) (- (acos a)))
  (sqrt a)
  (/ (sqrt a) (- (acos a)))
  1
  (/ a (- (acos a)))
  1
  (/ a (- (acos a)))
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  (/ (sqrt a) (- (acos a)))
  (/ 1 (- (acos a)))
  (/ (* (cbrt a) (cbrt a)) (- (acos a)))
  (/ (sqrt a) (- (acos a)))
  (/ 1 (- (acos a)))
  (/ (* (cbrt a) (cbrt a)) (- (acos a)))
  (/ (sqrt a) (- (acos a)))
  (/ 1 (- (acos a)))
  (/ 1 (- (acos a)))
  (/ 1 (- (acos a)))
  (/ (/ 1 a) (cbrt (/ 1 (- (acos a)))))
  (/ (/ 1 a) (sqrt (/ 1 (- (acos a)))))
  (/ (cbrt (- (acos a))) a)
  (/ (sqrt (- (acos a))) a)
  (/ (- (acos a)) a)
  (/ (acos a) a)
  (/ (cbrt (acos a)) a)
  (/ (sqrt (acos a)) a)
  (/ (acos a) a)
  (/ (- (cbrt (acos a))) a)
  (- (/ (sqrt (acos a)) a))
  (/ (- (acos a)) a)
  (/ (cbrt (- (acos a))) a)
  (/ (sqrt (- (acos a))) a)
  (/ (- (acos a)) a)
  (/ (acos a) a)
  (/ (cbrt (acos a)) a)
  (/ (sqrt (acos a)) a)
  (/ (acos a) a)
  (/ (- (cbrt (acos a))) a)
  (- (/ (sqrt (acos a)) a))
  (/ (- (acos a)) a)
  (/ (cbrt (- (acos a))) a)
  (/ (sqrt (- (acos a))) a)
  (/ (- (acos a)) a)
  (/ (acos a) a)
  (/ (cbrt (acos a)) a)
  (/ (sqrt (acos a)) a)
  (/ (acos a) a)
  (/ (- (cbrt (acos a))) a)
  (- (/ (sqrt (acos a)) a))
  (/ (- (acos a)) a)
  (/ (- (acos a)) a)
  (/ (- (acos a)) a)
  (/ 1 (- (acos a)))
  (/ (- (acos a)) a)
  (expm1 (/ 1 (- (acos a))))
  (log1p (/ 1 (- (acos a))))
  -1
  (- (log (- (acos a))))
  (- (log (- (acos a))))
  (- (log (- (acos a))))
  (- (log (- (acos a))))
  (exp (/ 1 (- (acos a))))
  (/ 1 (pow (- (acos a)) 3))
  (* (cbrt (/ 1 (- (acos a)))) (cbrt (/ 1 (- (acos a)))))
  (cbrt (/ 1 (- (acos a))))
  (/ 1 (pow (- (acos a)) 3))
  (sqrt (/ 1 (- (acos a))))
  (sqrt (/ 1 (- (acos a))))
  -1
  (acos a)
  (/ 1 (* (cbrt (- (acos a))) (cbrt (- (acos a)))))
  (/ 1 (cbrt (- (acos a))))
  (/ 1 (sqrt (- (acos a))))
  (/ 1 (sqrt (- (acos a))))
  1
  (/ 1 (- (acos a)))
  -1
  (/ 1 (acos a))
  (/ 1 (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (/ 1 (cbrt (acos a)))
  (/ 1 (- (sqrt (acos a))))
  (/ 1 (sqrt (acos a)))
  -1
  (/ 1 (acos a))
  (/ 1 (* (cbrt (acos a)) (cbrt (acos a))))
  (/ 1 (- (cbrt (acos a))))
  (/ 1 (sqrt (acos a)))
  (/ 1 (- (sqrt (acos a))))
  1
  (/ 1 (- (acos a)))
  (/ 1 (* (cbrt (- (acos a))) (cbrt (- (acos a)))))
  (/ 1 (cbrt (- (acos a))))
  (/ 1 (sqrt (- (acos a))))
  (/ 1 (sqrt (- (acos a))))
  1
  (/ 1 (- (acos a)))
  -1
  (/ 1 (acos a))
  (/ 1 (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (/ 1 (cbrt (acos a)))
  (/ 1 (- (sqrt (acos a))))
  (/ 1 (sqrt (acos a)))
  -1
  (/ 1 (acos a))
  (/ 1 (* (cbrt (acos a)) (cbrt (acos a))))
  (/ 1 (- (cbrt (acos a))))
  (/ 1 (sqrt (acos a)))
  (/ 1 (- (sqrt (acos a))))
  1
  (/ 1 (- (acos a)))
  (/ 1 (* (cbrt (- (acos a))) (cbrt (- (acos a)))))
  (/ 1 (cbrt (- (acos a))))
  (/ 1 (sqrt (- (acos a))))
  (/ 1 (sqrt (- (acos a))))
  1
  (/ 1 (- (acos a)))
  -1
  (/ 1 (acos a))
  (/ 1 (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (/ 1 (cbrt (acos a)))
  (/ 1 (- (sqrt (acos a))))
  (/ 1 (sqrt (acos a)))
  -1
  (/ 1 (acos a))
  (/ 1 (* (cbrt (acos a)) (cbrt (acos a))))
  (/ 1 (- (cbrt (acos a))))
  (/ 1 (sqrt (acos a)))
  (/ 1 (- (sqrt (acos a))))
  1
  (/ 1 (- (acos a)))
  (/ 1 (- (acos a)))
  (- (acos a))
  (/ 1 (* (cbrt (- (acos a))) (cbrt (- (acos a)))))
  (/ 1 (sqrt (- (acos a))))
  1
  -1
  (/ 1 (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (/ 1 (- (sqrt (acos a))))
  -1
  (/ 1 (* (cbrt (acos a)) (cbrt (acos a))))
  (/ 1 (sqrt (acos a)))
  1
  (- (acos a))
  (- (acos a))
  (- (acos a))
  (- (/ a (acos a)))
  (- (/ a (acos a)))
  (- (/ a (acos a)))
  (/ -1 (acos a))
  (/ -1 (acos a))
  (/ -1 (acos a))
19.155 * * * [progress]: adding candidates to table
19.606 * [progress]: [Phase 3 of 3] Extracting.
19.606 * * [regime]: Finding splitpoints for: (#<alt (λ (a) (/ (/ 1 (- (acos a))) (/ 1 a)))> #<alt (λ (a) (/ (/ 1 (- (* (cbrt (/ (acos a) a)) (cbrt (/ (acos a) a))))) (cbrt (/ (acos a) a))))> #<alt (λ (a) (* a (cbrt (pow (/ -1 (acos a)) 3))))> #<alt (λ (a) (/ 1 (- (/ (acos a) a))))> #<alt (λ (a) (/ (cbrt (/ 1 (pow (- (acos a)) 3))) (/ 1 a)))> #<alt (λ (a) (/ (/ 1 (- (sqrt (/ (acos a) a)))) (sqrt (/ (acos a) a))))> #<alt (λ (a) (/ a (- (acos a))))>)
19.607 * * * [regime-changes]: Trying 2 branch expressions: ((/ a (- (acos a))) a)
19.607 * * * * [regimes]: Trying to branch on (/ a (- (acos a))) from (#<alt (λ (a) (/ (/ 1 (- (acos a))) (/ 1 a)))> #<alt (λ (a) (/ (/ 1 (- (* (cbrt (/ (acos a) a)) (cbrt (/ (acos a) a))))) (cbrt (/ (acos a) a))))> #<alt (λ (a) (* a (cbrt (pow (/ -1 (acos a)) 3))))> #<alt (λ (a) (/ 1 (- (/ (acos a) a))))> #<alt (λ (a) (/ (cbrt (/ 1 (pow (- (acos a)) 3))) (/ 1 a)))> #<alt (λ (a) (/ (/ 1 (- (sqrt (/ (acos a) a)))) (sqrt (/ (acos a) a))))> #<alt (λ (a) (/ a (- (acos a))))>)
19.647 * * * * [regimes]: Trying to branch on a from (#<alt (λ (a) (/ (/ 1 (- (acos a))) (/ 1 a)))> #<alt (λ (a) (/ (/ 1 (- (* (cbrt (/ (acos a) a)) (cbrt (/ (acos a) a))))) (cbrt (/ (acos a) a))))> #<alt (λ (a) (* a (cbrt (pow (/ -1 (acos a)) 3))))> #<alt (λ (a) (/ 1 (- (/ (acos a) a))))> #<alt (λ (a) (/ (cbrt (/ 1 (pow (- (acos a)) 3))) (/ 1 a)))> #<alt (λ (a) (/ (/ 1 (- (sqrt (/ (acos a) a)))) (sqrt (/ (acos a) a))))> #<alt (λ (a) (/ a (- (acos a))))>)
19.673 * * * [regime]: Found split indices: #<option (#s(si 6 255))>
19.673 * [simplify]: Simplifying:
  (/ a (- (acos a)))
19.673 * * [simplify]: Extracting # 0 : cost  0
19.673 * * [simplify]: Extracting # 1 : cost  0
19.673 * * [simplify]: Extracting # 2 : cost  0
19.673 * * [simplify]: Extracting # 3 : cost  0
19.673 * * [simplify]: Extracting # 4 : cost  0
19.673 * * [simplify]: iteration  0 :  4  enodes  (cost  5 )
19.673 * * [simplify]: Extracting # 0 : cost  0
19.674 * * [simplify]: iteration done:  4  enodes  (cost  5 )
19.674 * [simplify]: Simplified to:
  (/ a (- (acos a)))
21.270 * [regime-testing]: Baseline error score: 0.2474059257407176
21.274 * [regime-testing]: Oracle error score: 0.012376547068383549
21.282 * [regime-testing]: End program error score: 0.2474059257407176