61.992 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.040 * * * [progress]: [2/2] Setting up program.
0.046 * [progress]: [Phase 2 of 3] Improving.
0.046 * [simplify]: Simplifying:
  (/ a (- (acos a)))
0.046 * * [simplify]: iteration 0: 4 enodes
0.048 * * [simplify]: iteration complete: 4 enodes
0.048 * * [simplify]: Extracting #0: cost 1 inf + 0
0.048 * * [simplify]: Extracting #1: cost 3 inf + 0
0.048 * * [simplify]: Extracting #2: cost 3 inf + 1
0.048 * * [simplify]: Extracting #3: cost 1 inf + 223
0.048 * * [simplify]: Extracting #4: cost 0 inf + 394
0.048 * [simplify]: Simplified to:
  (/ a (- (acos a)))
0.049 * * [progress]: iteration 1 / 4
0.049 * * * [progress]: picking best candidate
0.055 * * * * [pick]: Picked  #<alt (λ (a) (/ a (- (acos a))))>
0.055 * * * [progress]: localizing error
0.068 * * * [progress]: generating rewritten candidates
0.068 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.099 * * * [progress]: generating series expansions
0.099 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.100 * [backup-simplify]: Simplify (/ a (- (acos a))) into (* -1 (/ a (acos a)))
0.100 * [approximate]: Taking taylor expansion of (* -1 (/ a (acos a))) in (a) around 0
0.100 * [taylor]: Taking taylor expansion of (* -1 (/ a (acos a))) in a
0.100 * [taylor]: Taking taylor expansion of -1 in a
0.100 * [backup-simplify]: Simplify -1 into -1
0.100 * [taylor]: Taking taylor expansion of (/ a (acos a)) in a
0.100 * [taylor]: Taking taylor expansion of a in a
0.100 * [backup-simplify]: Simplify 0 into 0
0.100 * [backup-simplify]: Simplify 1 into 1
0.100 * [taylor]: Taking taylor expansion of (acos a) in a
0.102 * [backup-simplify]: Simplify (acos a) into (acos a)
0.103 * [backup-simplify]: Simplify (/ 1 (acos a)) into (/ 1 (acos a))
0.103 * [taylor]: Taking taylor expansion of (* -1 (/ a (acos a))) in a
0.103 * [taylor]: Taking taylor expansion of -1 in a
0.103 * [backup-simplify]: Simplify -1 into -1
0.103 * [taylor]: Taking taylor expansion of (/ a (acos a)) in a
0.103 * [taylor]: Taking taylor expansion of a in a
0.103 * [backup-simplify]: Simplify 0 into 0
0.103 * [backup-simplify]: Simplify 1 into 1
0.103 * [taylor]: Taking taylor expansion of (acos a) in a
0.103 * [backup-simplify]: Simplify (acos a) into (acos a)
0.103 * [backup-simplify]: Simplify (/ 1 (acos a)) into (/ 1 (acos a))
0.103 * [backup-simplify]: Simplify (* -1 (/ 1 (acos a))) into (/ -1 (acos a))
0.103 * [backup-simplify]: Simplify (/ -1 (acos a)) into (/ -1 (acos a))
0.104 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))))) into 0
0.104 * [backup-simplify]: Simplify (+ (* -1 0) (* 0 (/ 1 (acos a)))) into 0
0.104 * [backup-simplify]: Simplify 0 into 0
0.105 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
0.106 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (* 0 (/ 1 (acos a))))) into 0
0.106 * [backup-simplify]: Simplify 0 into 0
0.106 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
0.107 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (acos a)))))) into 0
0.107 * [backup-simplify]: Simplify 0 into 0
0.108 * [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
0.109 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (acos a))))))) into 0
0.110 * [backup-simplify]: Simplify 0 into 0
0.110 * [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
0.112 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (acos a)))))))) into 0
0.112 * [backup-simplify]: Simplify 0 into 0
0.113 * [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
0.115 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (acos a))))))))) into 0
0.115 * [backup-simplify]: Simplify 0 into 0
0.115 * [backup-simplify]: Simplify (* (/ -1 (acos a)) a) into (* -1 (/ a (acos a)))
0.115 * [backup-simplify]: Simplify (/ (/ 1 a) (- (acos (/ 1 a)))) into (/ -1 (* (acos (/ 1 a)) a))
0.115 * [approximate]: Taking taylor expansion of (/ -1 (* (acos (/ 1 a)) a)) in (a) around 0
0.116 * [taylor]: Taking taylor expansion of (/ -1 (* (acos (/ 1 a)) a)) in a
0.116 * [taylor]: Taking taylor expansion of -1 in a
0.116 * [backup-simplify]: Simplify -1 into -1
0.116 * [taylor]: Taking taylor expansion of (* (acos (/ 1 a)) a) in a
0.116 * [taylor]: Taking taylor expansion of (acos (/ 1 a)) in a
0.116 * [backup-simplify]: Simplify (acos (/ 1 a)) into (acos (/ 1 a))
0.116 * [taylor]: Taking taylor expansion of a in a
0.116 * [backup-simplify]: Simplify 0 into 0
0.116 * [backup-simplify]: Simplify 1 into 1
0.116 * [backup-simplify]: Simplify (* (acos (/ 1 a)) 0) into 0
0.116 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 1) (* 0 0)) into (acos (/ 1 a))
0.117 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
0.117 * [taylor]: Taking taylor expansion of (/ -1 (* (acos (/ 1 a)) a)) in a
0.117 * [taylor]: Taking taylor expansion of -1 in a
0.117 * [backup-simplify]: Simplify -1 into -1
0.117 * [taylor]: Taking taylor expansion of (* (acos (/ 1 a)) a) in a
0.117 * [taylor]: Taking taylor expansion of (acos (/ 1 a)) in a
0.117 * [backup-simplify]: Simplify (acos (/ 1 a)) into (acos (/ 1 a))
0.117 * [taylor]: Taking taylor expansion of a in a
0.117 * [backup-simplify]: Simplify 0 into 0
0.117 * [backup-simplify]: Simplify 1 into 1
0.117 * [backup-simplify]: Simplify (* (acos (/ 1 a)) 0) into 0
0.117 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 1) (* 0 0)) into (acos (/ 1 a))
0.118 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
0.118 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
0.119 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 1) (* 0 0))) into 0
0.119 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))))) into 0
0.119 * [backup-simplify]: Simplify 0 into 0
0.120 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
0.120 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
0.120 * [backup-simplify]: Simplify 0 into 0
0.122 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))) into 0
0.122 * [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
0.122 * [backup-simplify]: Simplify 0 into 0
0.123 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))))) into 0
0.124 * [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
0.124 * [backup-simplify]: Simplify 0 into 0
0.126 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))))) into 0
0.126 * [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
0.126 * [backup-simplify]: Simplify 0 into 0
0.128 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))))))) into 0
0.130 * [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
0.130 * [backup-simplify]: Simplify 0 into 0
0.130 * [backup-simplify]: Simplify (* (/ -1 (acos (/ 1 (/ 1 a)))) (/ 1 (/ 1 a))) into (* -1 (/ a (acos a)))
0.130 * [backup-simplify]: Simplify (/ (/ 1 (- a)) (- (acos (/ 1 (- a))))) into (/ 1 (* a (acos (/ -1 a))))
0.130 * [approximate]: Taking taylor expansion of (/ 1 (* a (acos (/ -1 a)))) in (a) around 0
0.130 * [taylor]: Taking taylor expansion of (/ 1 (* a (acos (/ -1 a)))) in a
0.130 * [taylor]: Taking taylor expansion of (* a (acos (/ -1 a))) in a
0.130 * [taylor]: Taking taylor expansion of a in a
0.130 * [backup-simplify]: Simplify 0 into 0
0.130 * [backup-simplify]: Simplify 1 into 1
0.130 * [taylor]: Taking taylor expansion of (acos (/ -1 a)) in a
0.131 * [backup-simplify]: Simplify (acos (/ -1 a)) into (acos (/ -1 a))
0.131 * [backup-simplify]: Simplify (* 0 (acos (/ -1 a))) into 0
0.132 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 (acos (/ -1 a)))) into (acos (/ -1 a))
0.132 * [backup-simplify]: Simplify (/ 1 (acos (/ -1 a))) into (/ 1 (acos (/ -1 a)))
0.132 * [taylor]: Taking taylor expansion of (/ 1 (* a (acos (/ -1 a)))) in a
0.132 * [taylor]: Taking taylor expansion of (* a (acos (/ -1 a))) in a
0.132 * [taylor]: Taking taylor expansion of a in a
0.132 * [backup-simplify]: Simplify 0 into 0
0.132 * [backup-simplify]: Simplify 1 into 1
0.132 * [taylor]: Taking taylor expansion of (acos (/ -1 a)) in a
0.132 * [backup-simplify]: Simplify (acos (/ -1 a)) into (acos (/ -1 a))
0.132 * [backup-simplify]: Simplify (* 0 (acos (/ -1 a))) into 0
0.133 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 (acos (/ -1 a)))) into (acos (/ -1 a))
0.133 * [backup-simplify]: Simplify (/ 1 (acos (/ -1 a))) into (/ 1 (acos (/ -1 a)))
0.133 * [backup-simplify]: Simplify (/ 1 (acos (/ -1 a))) into (/ 1 (acos (/ -1 a)))
0.134 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (acos (/ -1 a))))) into 0
0.135 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))))) into 0
0.135 * [backup-simplify]: Simplify 0 into 0
0.136 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))) into 0
0.136 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
0.137 * [backup-simplify]: Simplify 0 into 0
0.139 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a))))))) into 0
0.139 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
0.139 * [backup-simplify]: Simplify 0 into 0
0.142 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))))) into 0
0.142 * [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
0.142 * [backup-simplify]: Simplify 0 into 0
0.145 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a))))))))) into 0
0.146 * [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
0.146 * [backup-simplify]: Simplify 0 into 0
0.148 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))))))) into 0
0.149 * [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
0.149 * [backup-simplify]: Simplify 0 into 0
0.149 * [backup-simplify]: Simplify (* (/ 1 (acos (/ -1 (/ 1 (- a))))) (/ 1 (/ 1 (- a)))) into (* -1 (/ a (acos a)))
0.149 * * * [progress]: simplifying candidates
0.151 * [simplify]: Simplifying:
  (- (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)))
0.154 * * [simplify]: iteration 0: 94 enodes
0.200 * * [simplify]: iteration 1: 171 enodes
0.299 * * [simplify]: iteration 2: 454 enodes
0.635 * * [simplify]: iteration 3: 1327 enodes
2.019 * * [simplify]: iteration complete: 5000 enodes
2.019 * * [simplify]: Extracting #0: cost 63 inf + 0
2.022 * * [simplify]: Extracting #1: cost 768 inf + 560
2.034 * * [simplify]: Extracting #2: cost 1539 inf + 25158
2.098 * * [simplify]: Extracting #3: cost 620 inf + 256552
2.198 * * [simplify]: Extracting #4: cost 36 inf + 378568
2.301 * * [simplify]: Extracting #5: cost 0 inf + 385054
2.412 * [simplify]: Simplified to:
  (log (/ a (- (acos a))))
  (log (/ a (- (acos a))))
  (exp (/ a (- (acos a))))
  (* (* (/ a (- (acos a))) (/ a (- (acos a)))) (/ 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 (- (acos a)))) (/ (cbrt 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 (acos a))) (/ (cbrt 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 -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
  (/ (- (acos a)) (cbrt a))
  (/ (- (acos a)) (sqrt a))
  (/ (- (acos a)) a)
  (- (/ a (acos a)))
  (- (/ a (acos a)))
  (- (/ a (acos a)))
2.418 * * * [progress]: adding candidates to table
2.725 * * [progress]: iteration 2 / 4
2.725 * * * [progress]: picking best candidate
2.791 * * * * [pick]: Picked  #<alt (λ (a) (/ 1 (/ (- (acos a)) a)))>
2.791 * * * [progress]: localizing error
2.815 * * * [progress]: generating rewritten candidates
2.815 * * * * [progress]: [ 1 / 2 ] rewriting at (2)
2.850 * * * * [progress]: [ 2 / 2 ] rewriting at (2 2)
2.895 * * * [progress]: generating series expansions
2.895 * * * * [progress]: [ 1 / 2 ] generating series at (2)
2.895 * [backup-simplify]: Simplify (/ 1 (/ (- (acos a)) a)) into (* -1 (/ a (acos a)))
2.895 * [approximate]: Taking taylor expansion of (* -1 (/ a (acos a))) in (a) around 0
2.895 * [taylor]: Taking taylor expansion of (* -1 (/ a (acos a))) in a
2.895 * [taylor]: Taking taylor expansion of -1 in a
2.895 * [backup-simplify]: Simplify -1 into -1
2.895 * [taylor]: Taking taylor expansion of (/ a (acos a)) in a
2.895 * [taylor]: Taking taylor expansion of a in a
2.895 * [backup-simplify]: Simplify 0 into 0
2.895 * [backup-simplify]: Simplify 1 into 1
2.895 * [taylor]: Taking taylor expansion of (acos a) in a
2.895 * [backup-simplify]: Simplify (acos a) into (acos a)
2.895 * [backup-simplify]: Simplify (/ 1 (acos a)) into (/ 1 (acos a))
2.896 * [taylor]: Taking taylor expansion of (* -1 (/ a (acos a))) in a
2.896 * [taylor]: Taking taylor expansion of -1 in a
2.896 * [backup-simplify]: Simplify -1 into -1
2.896 * [taylor]: Taking taylor expansion of (/ a (acos a)) in a
2.896 * [taylor]: Taking taylor expansion of a in a
2.896 * [backup-simplify]: Simplify 0 into 0
2.896 * [backup-simplify]: Simplify 1 into 1
2.896 * [taylor]: Taking taylor expansion of (acos a) in a
2.896 * [backup-simplify]: Simplify (acos a) into (acos a)
2.896 * [backup-simplify]: Simplify (/ 1 (acos a)) into (/ 1 (acos a))
2.896 * [backup-simplify]: Simplify (* -1 (/ 1 (acos a))) into (/ -1 (acos a))
2.896 * [backup-simplify]: Simplify (/ -1 (acos a)) into (/ -1 (acos a))
2.896 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))))) into 0
2.897 * [backup-simplify]: Simplify (+ (* -1 0) (* 0 (/ 1 (acos a)))) into 0
2.897 * [backup-simplify]: Simplify 0 into 0
2.898 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
2.899 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (* 0 (/ 1 (acos a))))) into 0
2.899 * [backup-simplify]: Simplify 0 into 0
2.899 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
2.901 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (acos a)))))) into 0
2.901 * [backup-simplify]: Simplify 0 into 0
2.901 * [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
2.903 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (acos a))))))) into 0
2.903 * [backup-simplify]: Simplify 0 into 0
2.904 * [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
2.906 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (acos a)))))))) into 0
2.906 * [backup-simplify]: Simplify 0 into 0
2.907 * [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
2.909 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (acos a))))))))) into 0
2.909 * [backup-simplify]: Simplify 0 into 0
2.909 * [backup-simplify]: Simplify (* (/ -1 (acos a)) a) into (* -1 (/ a (acos a)))
2.910 * [backup-simplify]: Simplify (/ 1 (/ (- (acos (/ 1 a))) (/ 1 a))) into (/ -1 (* (acos (/ 1 a)) a))
2.910 * [approximate]: Taking taylor expansion of (/ -1 (* (acos (/ 1 a)) a)) in (a) around 0
2.910 * [taylor]: Taking taylor expansion of (/ -1 (* (acos (/ 1 a)) a)) in a
2.910 * [taylor]: Taking taylor expansion of -1 in a
2.910 * [backup-simplify]: Simplify -1 into -1
2.910 * [taylor]: Taking taylor expansion of (* (acos (/ 1 a)) a) in a
2.910 * [taylor]: Taking taylor expansion of (acos (/ 1 a)) in a
2.910 * [backup-simplify]: Simplify (acos (/ 1 a)) into (acos (/ 1 a))
2.910 * [taylor]: Taking taylor expansion of a in a
2.910 * [backup-simplify]: Simplify 0 into 0
2.910 * [backup-simplify]: Simplify 1 into 1
2.910 * [backup-simplify]: Simplify (* (acos (/ 1 a)) 0) into 0
2.911 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 1) (* 0 0)) into (acos (/ 1 a))
2.911 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
2.911 * [taylor]: Taking taylor expansion of (/ -1 (* (acos (/ 1 a)) a)) in a
2.911 * [taylor]: Taking taylor expansion of -1 in a
2.911 * [backup-simplify]: Simplify -1 into -1
2.911 * [taylor]: Taking taylor expansion of (* (acos (/ 1 a)) a) in a
2.911 * [taylor]: Taking taylor expansion of (acos (/ 1 a)) in a
2.911 * [backup-simplify]: Simplify (acos (/ 1 a)) into (acos (/ 1 a))
2.911 * [taylor]: Taking taylor expansion of a in a
2.911 * [backup-simplify]: Simplify 0 into 0
2.911 * [backup-simplify]: Simplify 1 into 1
2.911 * [backup-simplify]: Simplify (* (acos (/ 1 a)) 0) into 0
2.913 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 1) (* 0 0)) into (acos (/ 1 a))
2.913 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
2.913 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
2.914 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 1) (* 0 0))) into 0
2.914 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))))) into 0
2.914 * [backup-simplify]: Simplify 0 into 0
2.915 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
2.916 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
2.916 * [backup-simplify]: Simplify 0 into 0
2.917 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))) into 0
2.918 * [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
2.918 * [backup-simplify]: Simplify 0 into 0
2.919 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))))) into 0
2.920 * [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
2.920 * [backup-simplify]: Simplify 0 into 0
2.921 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))))) into 0
2.922 * [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
2.922 * [backup-simplify]: Simplify 0 into 0
2.924 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))))))) into 0
2.924 * [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
2.925 * [backup-simplify]: Simplify 0 into 0
2.925 * [backup-simplify]: Simplify (* (/ -1 (acos (/ 1 (/ 1 a)))) (/ 1 (/ 1 a))) into (* -1 (/ a (acos a)))
2.925 * [backup-simplify]: Simplify (/ 1 (/ (- (acos (/ 1 (- a)))) (/ 1 (- a)))) into (/ 1 (* a (acos (/ -1 a))))
2.925 * [approximate]: Taking taylor expansion of (/ 1 (* a (acos (/ -1 a)))) in (a) around 0
2.925 * [taylor]: Taking taylor expansion of (/ 1 (* a (acos (/ -1 a)))) in a
2.925 * [taylor]: Taking taylor expansion of (* a (acos (/ -1 a))) in a
2.925 * [taylor]: Taking taylor expansion of a in a
2.925 * [backup-simplify]: Simplify 0 into 0
2.925 * [backup-simplify]: Simplify 1 into 1
2.925 * [taylor]: Taking taylor expansion of (acos (/ -1 a)) in a
2.925 * [backup-simplify]: Simplify (acos (/ -1 a)) into (acos (/ -1 a))
2.925 * [backup-simplify]: Simplify (* 0 (acos (/ -1 a))) into 0
2.926 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 (acos (/ -1 a)))) into (acos (/ -1 a))
2.926 * [backup-simplify]: Simplify (/ 1 (acos (/ -1 a))) into (/ 1 (acos (/ -1 a)))
2.926 * [taylor]: Taking taylor expansion of (/ 1 (* a (acos (/ -1 a)))) in a
2.926 * [taylor]: Taking taylor expansion of (* a (acos (/ -1 a))) in a
2.926 * [taylor]: Taking taylor expansion of a in a
2.926 * [backup-simplify]: Simplify 0 into 0
2.926 * [backup-simplify]: Simplify 1 into 1
2.927 * [taylor]: Taking taylor expansion of (acos (/ -1 a)) in a
2.927 * [backup-simplify]: Simplify (acos (/ -1 a)) into (acos (/ -1 a))
2.927 * [backup-simplify]: Simplify (* 0 (acos (/ -1 a))) into 0
2.927 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 (acos (/ -1 a)))) into (acos (/ -1 a))
2.927 * [backup-simplify]: Simplify (/ 1 (acos (/ -1 a))) into (/ 1 (acos (/ -1 a)))
2.928 * [backup-simplify]: Simplify (/ 1 (acos (/ -1 a))) into (/ 1 (acos (/ -1 a)))
2.929 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (acos (/ -1 a))))) into 0
2.929 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))))) into 0
2.929 * [backup-simplify]: Simplify 0 into 0
2.930 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))) into 0
2.931 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
2.931 * [backup-simplify]: Simplify 0 into 0
2.932 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a))))))) into 0
2.933 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
2.933 * [backup-simplify]: Simplify 0 into 0
2.935 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))))) into 0
2.935 * [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
2.936 * [backup-simplify]: Simplify 0 into 0
2.938 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a))))))))) into 0
2.939 * [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
2.939 * [backup-simplify]: Simplify 0 into 0
2.941 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))))))) into 0
2.942 * [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
2.942 * [backup-simplify]: Simplify 0 into 0
2.942 * [backup-simplify]: Simplify (* (/ 1 (acos (/ -1 (/ 1 (- a))))) (/ 1 (/ 1 (- a)))) into (* -1 (/ a (acos a)))
2.943 * * * * [progress]: [ 2 / 2 ] generating series at (2 2)
2.943 * [backup-simplify]: Simplify (/ (- (acos a)) a) into (* -1 (/ (acos a) a))
2.943 * [approximate]: Taking taylor expansion of (* -1 (/ (acos a) a)) in (a) around 0
2.943 * [taylor]: Taking taylor expansion of (* -1 (/ (acos a) a)) in a
2.943 * [taylor]: Taking taylor expansion of -1 in a
2.943 * [backup-simplify]: Simplify -1 into -1
2.943 * [taylor]: Taking taylor expansion of (/ (acos a) a) in a
2.943 * [taylor]: Taking taylor expansion of (acos a) in a
2.943 * [backup-simplify]: Simplify (acos a) into (acos a)
2.943 * [taylor]: Taking taylor expansion of a in a
2.943 * [backup-simplify]: Simplify 0 into 0
2.943 * [backup-simplify]: Simplify 1 into 1
2.943 * [backup-simplify]: Simplify (/ (acos a) 1) into (acos a)
2.943 * [taylor]: Taking taylor expansion of (* -1 (/ (acos a) a)) in a
2.943 * [taylor]: Taking taylor expansion of -1 in a
2.943 * [backup-simplify]: Simplify -1 into -1
2.943 * [taylor]: Taking taylor expansion of (/ (acos a) a) in a
2.943 * [taylor]: Taking taylor expansion of (acos a) in a
2.944 * [backup-simplify]: Simplify (acos a) into (acos a)
2.944 * [taylor]: Taking taylor expansion of a in a
2.944 * [backup-simplify]: Simplify 0 into 0
2.944 * [backup-simplify]: Simplify 1 into 1
2.944 * [backup-simplify]: Simplify (/ (acos a) 1) into (acos a)
2.944 * [backup-simplify]: Simplify (* -1 (acos a)) into (* -1 (acos a))
2.944 * [backup-simplify]: Simplify (* -1 (acos a)) into (* -1 (acos a))
2.946 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* (acos a) (/ 0 1)))) into 0
2.946 * [backup-simplify]: Simplify (+ (* -1 0) (* 0 (acos a))) into 0
2.946 * [backup-simplify]: Simplify 0 into 0
2.948 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* (acos a) (/ 0 1)) (* 0 (/ 0 1)))) into 0
2.949 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (* 0 (acos a)))) into 0
2.949 * [backup-simplify]: Simplify 0 into 0
2.951 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* (acos a) (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
2.953 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos a))))) into 0
2.953 * [backup-simplify]: Simplify 0 into 0
2.955 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* (acos a) (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
2.964 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos a)))))) into 0
2.964 * [backup-simplify]: Simplify 0 into 0
2.968 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* (acos a) (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
2.970 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos a))))))) into 0
2.970 * [backup-simplify]: Simplify 0 into 0
2.973 * [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
2.976 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos a)))))))) into 0
2.976 * [backup-simplify]: Simplify 0 into 0
2.976 * [backup-simplify]: Simplify (* (* -1 (acos a)) (/ 1 a)) into (* -1 (/ (acos a) a))
2.976 * [backup-simplify]: Simplify (/ (- (acos (/ 1 a))) (/ 1 a)) into (* -1 (* (acos (/ 1 a)) a))
2.976 * [approximate]: Taking taylor expansion of (* -1 (* (acos (/ 1 a)) a)) in (a) around 0
2.976 * [taylor]: Taking taylor expansion of (* -1 (* (acos (/ 1 a)) a)) in a
2.976 * [taylor]: Taking taylor expansion of -1 in a
2.976 * [backup-simplify]: Simplify -1 into -1
2.976 * [taylor]: Taking taylor expansion of (* (acos (/ 1 a)) a) in a
2.976 * [taylor]: Taking taylor expansion of (acos (/ 1 a)) in a
2.976 * [backup-simplify]: Simplify (acos (/ 1 a)) into (acos (/ 1 a))
2.976 * [taylor]: Taking taylor expansion of a in a
2.977 * [backup-simplify]: Simplify 0 into 0
2.977 * [backup-simplify]: Simplify 1 into 1
2.977 * [taylor]: Taking taylor expansion of (* -1 (* (acos (/ 1 a)) a)) in a
2.977 * [taylor]: Taking taylor expansion of -1 in a
2.977 * [backup-simplify]: Simplify -1 into -1
2.977 * [taylor]: Taking taylor expansion of (* (acos (/ 1 a)) a) in a
2.977 * [taylor]: Taking taylor expansion of (acos (/ 1 a)) in a
2.977 * [backup-simplify]: Simplify (acos (/ 1 a)) into (acos (/ 1 a))
2.977 * [taylor]: Taking taylor expansion of a in a
2.977 * [backup-simplify]: Simplify 0 into 0
2.977 * [backup-simplify]: Simplify 1 into 1
2.977 * [backup-simplify]: Simplify (* (acos (/ 1 a)) 0) into 0
2.978 * [backup-simplify]: Simplify (* -1 0) into 0
2.978 * [backup-simplify]: Simplify 0 into 0
2.978 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 1) (* 0 0)) into (acos (/ 1 a))
2.979 * [backup-simplify]: Simplify (+ (* -1 (acos (/ 1 a))) (* 0 0)) into (- (acos (/ 1 a)))
2.979 * [backup-simplify]: Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
2.980 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 1) (* 0 0))) into 0
2.980 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 (acos (/ 1 a))) (* 0 0))) into 0
2.980 * [backup-simplify]: Simplify 0 into 0
2.981 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
2.983 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 (acos (/ 1 a))) (* 0 0)))) into 0
2.983 * [backup-simplify]: Simplify 0 into 0
2.984 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))) into 0
2.985 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (acos (/ 1 a))) (* 0 0))))) into 0
2.986 * [backup-simplify]: Simplify 0 into 0
2.987 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))))) into 0
2.989 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (acos (/ 1 a))) (* 0 0)))))) into 0
2.989 * [backup-simplify]: Simplify 0 into 0
2.990 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))))) into 0
2.993 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (acos (/ 1 a))) (* 0 0))))))) into 0
2.993 * [backup-simplify]: Simplify 0 into 0
2.994 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))))))) into 0
2.997 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (acos (/ 1 a))) (* 0 0)))))))) into 0
2.997 * [backup-simplify]: Simplify 0 into 0
2.997 * [backup-simplify]: Simplify (* (- (acos (/ 1 (/ 1 a)))) (/ 1 a)) into (* -1 (/ (acos a) a))
2.997 * [backup-simplify]: Simplify (/ (- (acos (/ 1 (- a)))) (/ 1 (- a))) into (* a (acos (/ -1 a)))
2.997 * [approximate]: Taking taylor expansion of (* a (acos (/ -1 a))) in (a) around 0
2.997 * [taylor]: Taking taylor expansion of (* a (acos (/ -1 a))) in a
2.998 * [taylor]: Taking taylor expansion of a in a
2.998 * [backup-simplify]: Simplify 0 into 0
2.998 * [backup-simplify]: Simplify 1 into 1
2.998 * [taylor]: Taking taylor expansion of (acos (/ -1 a)) in a
2.998 * [backup-simplify]: Simplify (acos (/ -1 a)) into (acos (/ -1 a))
2.998 * [taylor]: Taking taylor expansion of (* a (acos (/ -1 a))) in a
2.998 * [taylor]: Taking taylor expansion of a in a
2.998 * [backup-simplify]: Simplify 0 into 0
2.998 * [backup-simplify]: Simplify 1 into 1
2.998 * [taylor]: Taking taylor expansion of (acos (/ -1 a)) in a
2.998 * [backup-simplify]: Simplify (acos (/ -1 a)) into (acos (/ -1 a))
2.998 * [backup-simplify]: Simplify (* 0 (acos (/ -1 a))) into 0
2.998 * [backup-simplify]: Simplify 0 into 0
2.999 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 (acos (/ -1 a)))) into (acos (/ -1 a))
2.999 * [backup-simplify]: Simplify (acos (/ -1 a)) into (acos (/ -1 a))
3.000 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (acos (/ -1 a))))) into 0
3.000 * [backup-simplify]: Simplify 0 into 0
3.001 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))) into 0
3.001 * [backup-simplify]: Simplify 0 into 0
3.003 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a))))))) into 0
3.003 * [backup-simplify]: Simplify 0 into 0
3.005 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))))) into 0
3.005 * [backup-simplify]: Simplify 0 into 0
3.007 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a))))))))) into 0
3.007 * [backup-simplify]: Simplify 0 into 0
3.010 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))))))) into 0
3.010 * [backup-simplify]: Simplify 0 into 0
3.011 * [backup-simplify]: Simplify (* (acos (/ -1 (/ 1 (- a)))) (/ 1 (- a))) into (* -1 (/ (acos a) a))
3.011 * * * [progress]: simplifying candidates
3.018 * [simplify]: Simplifying:
  (- 1)
  (- (- (log (- (acos a))) (log a)))
  (- (log (/ (- (acos a)) a)))
  (- 0 (- (log (- (acos a))) (log a)))
  (- 0 (log (/ (- (acos a)) a)))
  (- (log 1) (- (log (- (acos a))) (log a)))
  (- (log 1) (log (/ (- (acos a)) a)))
  (log (/ 1 (/ (- (acos a)) a)))
  (exp (/ 1 (/ (- (acos a)) a)))
  (/ (* (* 1 1) 1) (/ (* (* (- (acos a)) (- (acos a))) (- (acos a))) (* (* a 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)) (/ (* (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 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)) (/ (- (* (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)) (/ (* (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) (/ (* (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 (* (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) (/ (- (* (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) (/ (* (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 (/ (* (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 (* (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 (/ (- (* (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 (/ (* (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 (/ (* (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 (* (cbrt a) (cbrt a))))
  (/ 1 (/ -1 (sqrt a)))
  (/ 1 (/ -1 1))
  (/ 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 (/ (* (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)))
  (- (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)
  (/ 0 a)
  (/ (acos 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 (* (cbrt a) (cbrt a)))
  (/ (acos a) (cbrt a))
  (/ -1 (sqrt a))
  (/ (acos a) (sqrt a))
  (/ -1 1)
  (/ (acos 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)
  (/ (* (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) 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)))
  (/ 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)))
  (* -1 (/ a (acos a)))
  (* -1 (/ a (acos a)))
  (* -1 (/ a (acos a)))
  (* -1 (/ (acos a) a))
  (* -1 (/ (acos a) a))
  (* -1 (/ (acos a) a))
3.029 * * [simplify]: iteration 0: 288 enodes
3.317 * * [simplify]: iteration 1: 768 enodes
3.813 * * [simplify]: iteration 2: 1547 enodes
5.139 * * [simplify]: iteration 3: 3465 enodes
6.602 * * [simplify]: iteration complete: 5000 enodes
6.602 * * [simplify]: Extracting #0: cost 117 inf + 0
6.620 * * [simplify]: Extracting #1: cost 867 inf + 87
6.633 * * [simplify]: Extracting #2: cost 1109 inf + 45068
6.681 * * [simplify]: Extracting #3: cost 404 inf + 233769
6.760 * * [simplify]: Extracting #4: cost 64 inf + 332230
6.854 * * [simplify]: Extracting #5: cost 2 inf + 341321
6.950 * * [simplify]: Extracting #6: cost 0 inf + 342267
7.067 * [simplify]: Simplified to:
  -1
  (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))))
  (* (* (/ a (acos a)) (/ a (acos a))) (/ a (- (acos a))))
  (* (* (/ a (acos a)) (/ a (acos a))) (/ 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))))
  -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 (- (acos a)))) (/ (cbrt (- (acos a))) (cbrt a)))
  (/ (cbrt a) (cbrt (- (acos a))))
  (* (/ 1 (cbrt (- (acos a)))) (/ (sqrt a) (cbrt (- (acos a)))))
  (/ (sqrt a) (cbrt (- (acos a))))
  (/ (/ 1 (cbrt (- (acos a)))) (cbrt (- (acos a))))
  (/ a (cbrt (- (acos a))))
  (/ (* 1 (* (cbrt a) (cbrt a))) (sqrt (- (acos a))))
  (/ (cbrt a) (sqrt (- (acos a))))
  (/ (* 1 (sqrt a)) (sqrt (- (acos a))))
  (/ (* 1 (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)))
  (* (- (cbrt a)) (cbrt a))
  (/ (cbrt a) (acos a))
  (- (sqrt a))
  (/ (sqrt a) (acos a))
  -1
  (/ a (acos a))
  (/ (/ (cbrt a) (cbrt (acos a))) (- (/ (cbrt (acos a)) (cbrt 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) (/ 1 (- (sqrt (acos a)))))
  (* (/ 1 (sqrt (acos a))) (sqrt 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))
  (* (/ (cbrt a) (cbrt (acos a))) (/ (cbrt a) (cbrt (acos a))))
  (/ (cbrt a) (- (cbrt (acos a))))
  (* (/ (/ 1 (cbrt (acos a))) (cbrt (acos a))) (sqrt a))
  (/ (sqrt a) (- (cbrt (acos a))))
  (/ (/ 1 (cbrt (acos a))) (cbrt (acos a)))
  (/ a (- (cbrt (acos a))))
  (* (/ (cbrt a) (sqrt (acos a))) (cbrt a))
  (/ (cbrt a) (- (sqrt (acos a))))
  (* (/ 1 (sqrt (acos a))) (sqrt a))
  (* (sqrt a) (/ 1 (- (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 (- (acos a)))) (/ (cbrt (- (acos a))) (cbrt a)))
  (/ (cbrt a) (cbrt (- (acos a))))
  (* (/ 1 (cbrt (- (acos a)))) (/ (sqrt a) (cbrt (- (acos a)))))
  (/ (sqrt a) (cbrt (- (acos a))))
  (/ (/ 1 (cbrt (- (acos a)))) (cbrt (- (acos a))))
  (/ a (cbrt (- (acos a))))
  (/ (* 1 (* (cbrt a) (cbrt a))) (sqrt (- (acos a))))
  (/ (cbrt a) (sqrt (- (acos a))))
  (/ (* 1 (sqrt a)) (sqrt (- (acos a))))
  (/ (* 1 (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)))
  (* (- (cbrt a)) (cbrt a))
  (/ (cbrt a) (acos a))
  (- (sqrt a))
  (/ (sqrt a) (acos a))
  -1
  (/ a (acos a))
  (/ (/ (cbrt a) (cbrt (acos a))) (- (/ (cbrt (acos a)) (cbrt 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) (/ 1 (- (sqrt (acos a)))))
  (* (/ 1 (sqrt (acos a))) (sqrt 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))
  (* (/ (cbrt a) (cbrt (acos a))) (/ (cbrt a) (cbrt (acos a))))
  (/ (cbrt a) (- (cbrt (acos a))))
  (* (/ (/ 1 (cbrt (acos a))) (cbrt (acos a))) (sqrt a))
  (/ (sqrt a) (- (cbrt (acos a))))
  (/ (/ 1 (cbrt (acos a))) (cbrt (acos a)))
  (/ a (- (cbrt (acos a))))
  (* (/ (cbrt a) (sqrt (acos a))) (cbrt a))
  (/ (cbrt a) (- (sqrt (acos a))))
  (* (/ 1 (sqrt (acos a))) (sqrt a))
  (* (sqrt a) (/ 1 (- (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 (- (acos a)))) (/ (cbrt (- (acos a))) (cbrt a)))
  (/ (cbrt a) (cbrt (- (acos a))))
  (* (/ 1 (cbrt (- (acos a)))) (/ (sqrt a) (cbrt (- (acos a)))))
  (/ (sqrt a) (cbrt (- (acos a))))
  (/ (/ 1 (cbrt (- (acos a)))) (cbrt (- (acos a))))
  (/ a (cbrt (- (acos a))))
  (/ (* 1 (* (cbrt a) (cbrt a))) (sqrt (- (acos a))))
  (/ (cbrt a) (sqrt (- (acos a))))
  (/ (* 1 (sqrt a)) (sqrt (- (acos a))))
  (/ (* 1 (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)))
  (* (- (cbrt a)) (cbrt a))
  (/ (cbrt a) (acos a))
  (- (sqrt a))
  (/ (sqrt a) (acos a))
  -1
  (/ a (acos a))
  (/ (/ (cbrt a) (cbrt (acos a))) (- (/ (cbrt (acos a)) (cbrt 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) (/ 1 (- (sqrt (acos a)))))
  (* (/ 1 (sqrt (acos a))) (sqrt 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))
  (* (/ (cbrt a) (cbrt (acos a))) (/ (cbrt a) (cbrt (acos a))))
  (/ (cbrt a) (- (cbrt (acos a))))
  (* (/ (/ 1 (cbrt (acos a))) (cbrt (acos a))) (sqrt a))
  (/ (sqrt a) (- (cbrt (acos a))))
  (/ (/ 1 (cbrt (acos a))) (cbrt (acos a)))
  (/ a (- (cbrt (acos a))))
  (* (/ (cbrt a) (sqrt (acos a))) (cbrt a))
  (/ (cbrt a) (- (sqrt (acos a))))
  (* (/ 1 (sqrt (acos a))) (sqrt a))
  (* (sqrt a) (/ 1 (- (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)))
  (/ (/ (cbrt a) (cbrt (- (acos a)))) (/ (cbrt (- (acos a))) (cbrt a)))
  (* (/ 1 (cbrt (- (acos a)))) (/ (sqrt a) (cbrt (- (acos a)))))
  (/ (/ 1 (cbrt (- (acos a)))) (cbrt (- (acos a))))
  (/ (* 1 (* (cbrt a) (cbrt a))) (sqrt (- (acos a))))
  (/ (* 1 (sqrt a)) (sqrt (- (acos a))))
  (/ 1 (sqrt (- (acos a))))
  (* (cbrt a) (cbrt a))
  (sqrt a)
  1
  (* (- (cbrt a)) (cbrt a))
  (- (sqrt a))
  -1
  (/ (/ (cbrt a) (cbrt (acos a))) (- (/ (cbrt (acos a)) (cbrt 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) (/ 1 (- (sqrt (acos a)))))
  (/ 1 (- (sqrt (acos a))))
  (* (- (cbrt a)) (cbrt a))
  (- (sqrt a))
  -1
  (* (/ (cbrt a) (cbrt (acos a))) (/ (cbrt a) (cbrt (acos a))))
  (* (/ (/ 1 (cbrt (acos a))) (cbrt (acos a))) (sqrt a))
  (/ (/ 1 (cbrt (acos a))) (cbrt (acos a)))
  (* (/ (cbrt a) (sqrt (acos a))) (cbrt a))
  (* (/ 1 (sqrt (acos a))) (sqrt 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)))
  (log (/ (- (acos a)) a))
  (log (/ (- (acos a)) a))
  (exp (/ (- (acos a)) a))
  (- (* (* (/ (acos a) a) (/ (acos a) a)) (/ (acos 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)
  0
  (/ (acos a) a)
  (* (/ (cbrt (- (acos a))) (cbrt a)) (/ (cbrt (- (acos 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))))
  (/ (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 (* (cbrt a) (cbrt a)))
  (/ (acos a) (cbrt a))
  (/ -1 (sqrt a))
  (/ (acos a) (sqrt a))
  -1
  (/ (acos a) a)
  (* (- (/ (cbrt (acos a)) (cbrt a))) (/ (cbrt (acos 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)
  (* (/ (cbrt (acos a)) (cbrt a)) (/ (cbrt (acos 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) 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 (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 (acos a)))
  (/ (- (acos a)) a)
  (/ (- (acos a)) a)
  (/ (- (acos a)) a)
7.092 * * * [progress]: adding candidates to table
8.013 * * [progress]: iteration 3 / 4
8.013 * * * [progress]: picking best candidate
8.088 * * * * [pick]: Picked  #<alt (λ (a) (/ (/ 1 (- (acos a))) (/ 1 a)))>
8.088 * * * [progress]: localizing error
8.130 * * * [progress]: generating rewritten candidates
8.130 * * * * [progress]: [ 1 / 2 ] rewriting at (2)
8.193 * * * * [progress]: [ 2 / 2 ] rewriting at (2 1)
8.329 * * * [progress]: generating series expansions
8.329 * * * * [progress]: [ 1 / 2 ] generating series at (2)
8.329 * [backup-simplify]: Simplify (/ (/ 1 (- (acos a))) (/ 1 a)) into (* -1 (/ a (acos a)))
8.329 * [approximate]: Taking taylor expansion of (* -1 (/ a (acos a))) in (a) around 0
8.329 * [taylor]: Taking taylor expansion of (* -1 (/ a (acos a))) in a
8.329 * [taylor]: Taking taylor expansion of -1 in a
8.329 * [backup-simplify]: Simplify -1 into -1
8.329 * [taylor]: Taking taylor expansion of (/ a (acos a)) in a
8.329 * [taylor]: Taking taylor expansion of a in a
8.329 * [backup-simplify]: Simplify 0 into 0
8.329 * [backup-simplify]: Simplify 1 into 1
8.329 * [taylor]: Taking taylor expansion of (acos a) in a
8.329 * [backup-simplify]: Simplify (acos a) into (acos a)
8.330 * [backup-simplify]: Simplify (/ 1 (acos a)) into (/ 1 (acos a))
8.330 * [taylor]: Taking taylor expansion of (* -1 (/ a (acos a))) in a
8.330 * [taylor]: Taking taylor expansion of -1 in a
8.330 * [backup-simplify]: Simplify -1 into -1
8.330 * [taylor]: Taking taylor expansion of (/ a (acos a)) in a
8.330 * [taylor]: Taking taylor expansion of a in a
8.330 * [backup-simplify]: Simplify 0 into 0
8.330 * [backup-simplify]: Simplify 1 into 1
8.330 * [taylor]: Taking taylor expansion of (acos a) in a
8.330 * [backup-simplify]: Simplify (acos a) into (acos a)
8.330 * [backup-simplify]: Simplify (/ 1 (acos a)) into (/ 1 (acos a))
8.330 * [backup-simplify]: Simplify (* -1 (/ 1 (acos a))) into (/ -1 (acos a))
8.330 * [backup-simplify]: Simplify (/ -1 (acos a)) into (/ -1 (acos a))
8.331 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))))) into 0
8.332 * [backup-simplify]: Simplify (+ (* -1 0) (* 0 (/ 1 (acos a)))) into 0
8.332 * [backup-simplify]: Simplify 0 into 0
8.332 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
8.333 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (* 0 (/ 1 (acos a))))) into 0
8.333 * [backup-simplify]: Simplify 0 into 0
8.334 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
8.335 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (acos a)))))) into 0
8.335 * [backup-simplify]: Simplify 0 into 0
8.336 * [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
8.338 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (acos a))))))) into 0
8.338 * [backup-simplify]: Simplify 0 into 0
8.339 * [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
8.341 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (acos a)))))))) into 0
8.341 * [backup-simplify]: Simplify 0 into 0
8.342 * [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
8.344 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (acos a))))))))) into 0
8.345 * [backup-simplify]: Simplify 0 into 0
8.345 * [backup-simplify]: Simplify (* (/ -1 (acos a)) a) into (* -1 (/ a (acos a)))
8.345 * [backup-simplify]: Simplify (/ (/ 1 (- (acos (/ 1 a)))) (/ 1 (/ 1 a))) into (/ -1 (* (acos (/ 1 a)) a))
8.345 * [approximate]: Taking taylor expansion of (/ -1 (* (acos (/ 1 a)) a)) in (a) around 0
8.345 * [taylor]: Taking taylor expansion of (/ -1 (* (acos (/ 1 a)) a)) in a
8.345 * [taylor]: Taking taylor expansion of -1 in a
8.345 * [backup-simplify]: Simplify -1 into -1
8.345 * [taylor]: Taking taylor expansion of (* (acos (/ 1 a)) a) in a
8.345 * [taylor]: Taking taylor expansion of (acos (/ 1 a)) in a
8.345 * [backup-simplify]: Simplify (acos (/ 1 a)) into (acos (/ 1 a))
8.345 * [taylor]: Taking taylor expansion of a in a
8.345 * [backup-simplify]: Simplify 0 into 0
8.345 * [backup-simplify]: Simplify 1 into 1
8.346 * [backup-simplify]: Simplify (* (acos (/ 1 a)) 0) into 0
8.346 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 1) (* 0 0)) into (acos (/ 1 a))
8.346 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
8.347 * [taylor]: Taking taylor expansion of (/ -1 (* (acos (/ 1 a)) a)) in a
8.347 * [taylor]: Taking taylor expansion of -1 in a
8.347 * [backup-simplify]: Simplify -1 into -1
8.347 * [taylor]: Taking taylor expansion of (* (acos (/ 1 a)) a) in a
8.347 * [taylor]: Taking taylor expansion of (acos (/ 1 a)) in a
8.347 * [backup-simplify]: Simplify (acos (/ 1 a)) into (acos (/ 1 a))
8.347 * [taylor]: Taking taylor expansion of a in a
8.347 * [backup-simplify]: Simplify 0 into 0
8.347 * [backup-simplify]: Simplify 1 into 1
8.347 * [backup-simplify]: Simplify (* (acos (/ 1 a)) 0) into 0
8.347 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 1) (* 0 0)) into (acos (/ 1 a))
8.348 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
8.348 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
8.349 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 1) (* 0 0))) into 0
8.349 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))))) into 0
8.349 * [backup-simplify]: Simplify 0 into 0
8.350 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
8.350 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
8.350 * [backup-simplify]: Simplify 0 into 0
8.352 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))) into 0
8.352 * [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
8.352 * [backup-simplify]: Simplify 0 into 0
8.353 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))))) into 0
8.354 * [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
8.354 * [backup-simplify]: Simplify 0 into 0
8.356 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))))) into 0
8.357 * [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
8.357 * [backup-simplify]: Simplify 0 into 0
8.358 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))))))) into 0
8.359 * [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
8.359 * [backup-simplify]: Simplify 0 into 0
8.359 * [backup-simplify]: Simplify (* (/ -1 (acos (/ 1 (/ 1 a)))) (/ 1 (/ 1 a))) into (* -1 (/ a (acos a)))
8.360 * [backup-simplify]: Simplify (/ (/ 1 (- (acos (/ 1 (- a))))) (/ 1 (/ 1 (- a)))) into (/ 1 (* a (acos (/ -1 a))))
8.360 * [approximate]: Taking taylor expansion of (/ 1 (* a (acos (/ -1 a)))) in (a) around 0
8.360 * [taylor]: Taking taylor expansion of (/ 1 (* a (acos (/ -1 a)))) in a
8.360 * [taylor]: Taking taylor expansion of (* a (acos (/ -1 a))) in a
8.360 * [taylor]: Taking taylor expansion of a in a
8.360 * [backup-simplify]: Simplify 0 into 0
8.360 * [backup-simplify]: Simplify 1 into 1
8.360 * [taylor]: Taking taylor expansion of (acos (/ -1 a)) in a
8.360 * [backup-simplify]: Simplify (acos (/ -1 a)) into (acos (/ -1 a))
8.360 * [backup-simplify]: Simplify (* 0 (acos (/ -1 a))) into 0
8.361 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 (acos (/ -1 a)))) into (acos (/ -1 a))
8.361 * [backup-simplify]: Simplify (/ 1 (acos (/ -1 a))) into (/ 1 (acos (/ -1 a)))
8.361 * [taylor]: Taking taylor expansion of (/ 1 (* a (acos (/ -1 a)))) in a
8.361 * [taylor]: Taking taylor expansion of (* a (acos (/ -1 a))) in a
8.361 * [taylor]: Taking taylor expansion of a in a
8.361 * [backup-simplify]: Simplify 0 into 0
8.361 * [backup-simplify]: Simplify 1 into 1
8.361 * [taylor]: Taking taylor expansion of (acos (/ -1 a)) in a
8.361 * [backup-simplify]: Simplify (acos (/ -1 a)) into (acos (/ -1 a))
8.361 * [backup-simplify]: Simplify (* 0 (acos (/ -1 a))) into 0
8.362 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 (acos (/ -1 a)))) into (acos (/ -1 a))
8.362 * [backup-simplify]: Simplify (/ 1 (acos (/ -1 a))) into (/ 1 (acos (/ -1 a)))
8.362 * [backup-simplify]: Simplify (/ 1 (acos (/ -1 a))) into (/ 1 (acos (/ -1 a)))
8.363 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (acos (/ -1 a))))) into 0
8.364 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))))) into 0
8.364 * [backup-simplify]: Simplify 0 into 0
8.366 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))) into 0
8.366 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
8.366 * [backup-simplify]: Simplify 0 into 0
8.368 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a))))))) into 0
8.368 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
8.369 * [backup-simplify]: Simplify 0 into 0
8.371 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))))) into 0
8.371 * [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
8.371 * [backup-simplify]: Simplify 0 into 0
8.374 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a))))))))) into 0
8.375 * [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
8.375 * [backup-simplify]: Simplify 0 into 0
8.378 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))))))) into 0
8.378 * [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
8.378 * [backup-simplify]: Simplify 0 into 0
8.379 * [backup-simplify]: Simplify (* (/ 1 (acos (/ -1 (/ 1 (- a))))) (/ 1 (/ 1 (- a)))) into (* -1 (/ a (acos a)))
8.379 * * * * [progress]: [ 2 / 2 ] generating series at (2 1)
8.379 * [backup-simplify]: Simplify (/ 1 (- (acos a))) into (/ -1 (acos a))
8.379 * [approximate]: Taking taylor expansion of (/ -1 (acos a)) in (a) around 0
8.379 * [taylor]: Taking taylor expansion of (/ -1 (acos a)) in a
8.379 * [taylor]: Taking taylor expansion of -1 in a
8.379 * [backup-simplify]: Simplify -1 into -1
8.379 * [taylor]: Taking taylor expansion of (acos a) in a
8.379 * [backup-simplify]: Simplify (acos a) into (acos a)
8.379 * [backup-simplify]: Simplify (/ -1 (acos a)) into (/ -1 (acos a))
8.379 * [taylor]: Taking taylor expansion of (/ -1 (acos a)) in a
8.379 * [taylor]: Taking taylor expansion of -1 in a
8.379 * [backup-simplify]: Simplify -1 into -1
8.379 * [taylor]: Taking taylor expansion of (acos a) in a
8.380 * [backup-simplify]: Simplify (acos a) into (acos a)
8.380 * [backup-simplify]: Simplify (/ -1 (acos a)) into (/ -1 (acos a))
8.380 * [backup-simplify]: Simplify (/ -1 (acos a)) into (/ -1 (acos a))
8.380 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ -1 (acos a)) (/ 0 (acos a))))) into 0
8.380 * [backup-simplify]: Simplify 0 into 0
8.380 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ -1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
8.380 * [backup-simplify]: Simplify 0 into 0
8.392 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ -1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
8.392 * [backup-simplify]: Simplify 0 into 0
8.393 * [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
8.393 * [backup-simplify]: Simplify 0 into 0
8.393 * [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
8.393 * [backup-simplify]: Simplify 0 into 0
8.394 * [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
8.394 * [backup-simplify]: Simplify 0 into 0
8.394 * [backup-simplify]: Simplify (/ -1 (acos a)) into (/ -1 (acos a))
8.394 * [backup-simplify]: Simplify (/ 1 (- (acos (/ 1 a)))) into (/ -1 (acos (/ 1 a)))
8.394 * [approximate]: Taking taylor expansion of (/ -1 (acos (/ 1 a))) in (a) around 0
8.394 * [taylor]: Taking taylor expansion of (/ -1 (acos (/ 1 a))) in a
8.395 * [taylor]: Taking taylor expansion of -1 in a
8.395 * [backup-simplify]: Simplify -1 into -1
8.395 * [taylor]: Taking taylor expansion of (acos (/ 1 a)) in a
8.395 * [backup-simplify]: Simplify (acos (/ 1 a)) into (acos (/ 1 a))
8.395 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
8.395 * [taylor]: Taking taylor expansion of (/ -1 (acos (/ 1 a))) in a
8.395 * [taylor]: Taking taylor expansion of -1 in a
8.395 * [backup-simplify]: Simplify -1 into -1
8.395 * [taylor]: Taking taylor expansion of (acos (/ 1 a)) in a
8.395 * [backup-simplify]: Simplify (acos (/ 1 a)) into (acos (/ 1 a))
8.395 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
8.395 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
8.395 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))))) into 0
8.395 * [backup-simplify]: Simplify 0 into 0
8.396 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
8.396 * [backup-simplify]: Simplify 0 into 0
8.396 * [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
8.396 * [backup-simplify]: Simplify 0 into 0
8.396 * [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
8.396 * [backup-simplify]: Simplify 0 into 0
8.397 * [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
8.397 * [backup-simplify]: Simplify 0 into 0
8.397 * [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
8.397 * [backup-simplify]: Simplify 0 into 0
8.397 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 (/ 1 a)))) into (/ -1 (acos a))
8.398 * [backup-simplify]: Simplify (/ 1 (- (acos (/ 1 (- a))))) into (/ -1 (acos (/ -1 a)))
8.398 * [approximate]: Taking taylor expansion of (/ -1 (acos (/ -1 a))) in (a) around 0
8.398 * [taylor]: Taking taylor expansion of (/ -1 (acos (/ -1 a))) in a
8.398 * [taylor]: Taking taylor expansion of -1 in a
8.398 * [backup-simplify]: Simplify -1 into -1
8.398 * [taylor]: Taking taylor expansion of (acos (/ -1 a)) in a
8.398 * [backup-simplify]: Simplify (acos (/ -1 a)) into (acos (/ -1 a))
8.398 * [backup-simplify]: Simplify (/ -1 (acos (/ -1 a))) into (/ -1 (acos (/ -1 a)))
8.398 * [taylor]: Taking taylor expansion of (/ -1 (acos (/ -1 a))) in a
8.398 * [taylor]: Taking taylor expansion of -1 in a
8.398 * [backup-simplify]: Simplify -1 into -1
8.398 * [taylor]: Taking taylor expansion of (acos (/ -1 a)) in a
8.398 * [backup-simplify]: Simplify (acos (/ -1 a)) into (acos (/ -1 a))
8.398 * [backup-simplify]: Simplify (/ -1 (acos (/ -1 a))) into (/ -1 (acos (/ -1 a)))
8.398 * [backup-simplify]: Simplify (/ -1 (acos (/ -1 a))) into (/ -1 (acos (/ -1 a)))
8.399 * [backup-simplify]: Simplify (- (/ 0 (acos (/ -1 a))) (+ (* (/ -1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))))) into 0
8.399 * [backup-simplify]: Simplify 0 into 0
8.399 * [backup-simplify]: Simplify (- (/ 0 (acos (/ -1 a))) (+ (* (/ -1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
8.399 * [backup-simplify]: Simplify 0 into 0
8.399 * [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
8.399 * [backup-simplify]: Simplify 0 into 0
8.399 * [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
8.399 * [backup-simplify]: Simplify 0 into 0
8.400 * [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
8.400 * [backup-simplify]: Simplify 0 into 0
8.400 * [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
8.400 * [backup-simplify]: Simplify 0 into 0
8.400 * [backup-simplify]: Simplify (/ -1 (acos (/ -1 (/ 1 (- a))))) into (/ -1 (acos a))
8.400 * * * [progress]: simplifying candidates
8.417 * [simplify]: Simplifying:
  (- (- (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)))
  (/ (/ (* (cbrt 1) (cbrt 1)) (* (cbrt (- (acos a))) (cbrt (- (acos a))))) (/ 1 (sqrt a)))
  (/ (/ (cbrt 1) (cbrt (- (acos a)))) (/ 1 (sqrt a)))
  (/ (/ (* (cbrt 1) (cbrt 1)) (* (cbrt (- (acos a))) (cbrt (- (acos a))))) (/ 1 1))
  (/ (/ (cbrt 1) (cbrt (- (acos a)))) (/ 1 a))
  (/ (/ (* (cbrt 1) (cbrt 1)) (* (cbrt (- (acos a))) (cbrt (- (acos a))))) 1)
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8.455 * * [simplify]: iteration 0: 807 enodes
9.902 * * [simplify]: iteration 1: 2682 enodes
11.337 * * [simplify]: iteration 2: 4710 enodes
12.765 * * [simplify]: iteration complete: 5005 enodes
12.766 * * [simplify]: Extracting #0: cost 128 inf + 0
12.769 * * [simplify]: Extracting #1: cost 645 inf + 135
12.781 * * [simplify]: Extracting #2: cost 830 inf + 22783
12.823 * * [simplify]: Extracting #3: cost 293 inf + 158016
12.899 * * [simplify]: Extracting #4: cost 26 inf + 236785
12.961 * * [simplify]: Extracting #5: cost 0 inf + 244697
13.039 * [simplify]: Simplified to:
  (- (log (/ (- (acos a)) a)))
  (- (log (/ (- (acos a)) a)))
  (- (log (/ (- (acos a)) a)))
  (- (log (/ (- (acos a)) a)))
  (- (log (/ (- (acos a)) a)))
  (- (log (/ (- (acos a)) a)))
  (- (log (/ (- (acos a)) a)))
  (- (log (/ (- (acos a)) a)))
  (- (log (/ (- (acos a)) a)))
  (- (log (/ (- (acos a)) a)))
  (- (log (/ (- (acos a)) a)))
  (- (log (/ (- (acos a)) a)))
  (- (log (/ (- (acos a)) a)))
  (- (log (/ (- (acos a)) a)))
  (- (log (/ (- (acos a)) a)))
  (- (log (/ (- (acos a)) a)))
  (- (log (/ (- (acos a)) a)))
  (exp (/ 1 (/ (- (acos a)) a)))
  (* (/ (/ 1 (* (acos a) (acos a))) (- (acos a))) (* (* a a) a))
  (* (/ (/ 1 (* (acos a) (acos a))) (- (acos a))) (* (* a a) a))
  (* (/ (/ 1 (* (acos a) (acos a))) (- (acos a))) (* (* a a) a))
  (* (/ (/ 1 (* (acos a) (acos a))) (- (acos a))) (* (* a a) a))
  (* (cbrt (/ 1 (/ (- (acos a)) a))) (cbrt (/ 1 (/ (- (acos a)) a))))
  (cbrt (/ 1 (/ (- (acos a)) a)))
  (* (/ (/ 1 (* (acos a) (acos a))) (- (acos a))) (* (* a a) a))
  (sqrt (/ 1 (/ (- (acos a)) a)))
  (sqrt (/ 1 (/ (- (acos a)) a)))
  (/ -1 (- (acos a)))
  (/ -1 a)
  (* (/ (cbrt (/ 1 (- (acos a)))) (cbrt (/ 1 a))) (/ (cbrt (/ 1 (- (acos 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 a)) (* (cbrt (/ 1 (- (acos a)))) (cbrt a)))
  (* (cbrt (/ 1 (- (acos a)))) (cbrt 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 a)) (* (cbrt (/ 1 (- (acos a)))) (cbrt a)))
  (* (cbrt (/ 1 (- (acos a)))) (cbrt 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 a)) (* (cbrt (/ 1 (- (acos a)))) (cbrt a)))
  (* (cbrt (/ 1 (- (acos a)))) (cbrt 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 (/ 1 a))) (/ (/ 1 (cbrt (- (acos a)))) (cbrt (/ 1 a))))
  (/ (/ 1 (cbrt (- (acos a)))) (cbrt (/ 1 a)))
  (/ (/ 1 (sqrt (/ 1 a))) (* (cbrt (- (acos a))) (cbrt (- (acos a)))))
  (/ (/ 1 (cbrt (- (acos a)))) (sqrt (/ 1 a)))
  (/ (* (cbrt a) (cbrt a)) (* (cbrt (- (acos a))) (cbrt (- (acos a)))))
  (* (/ 1 (cbrt (- (acos a)))) (cbrt a))
  (/ (sqrt a) (* (cbrt (- (acos a))) (cbrt (- (acos a)))))
  (* (/ 1 (cbrt (- (acos a)))) (sqrt a))
  (/ (/ 1 (cbrt (- (acos a)))) (cbrt (- (acos a))))
  (* (/ 1 (cbrt (- (acos a)))) a)
  (/ (* (cbrt a) (cbrt a)) (* (cbrt (- (acos a))) (cbrt (- (acos a)))))
  (* (/ 1 (cbrt (- (acos a)))) (cbrt a))
  (/ (sqrt a) (* (cbrt (- (acos a))) (cbrt (- (acos a)))))
  (* (/ 1 (cbrt (- (acos a)))) (sqrt a))
  (/ (/ 1 (cbrt (- (acos a)))) (cbrt (- (acos a))))
  (* (/ 1 (cbrt (- (acos a)))) a)
  (/ (* (cbrt a) (cbrt a)) (* (cbrt (- (acos a))) (cbrt (- (acos a)))))
  (* (/ 1 (cbrt (- (acos a)))) (cbrt a))
  (/ (sqrt a) (* (cbrt (- (acos a))) (cbrt (- (acos a)))))
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  (/ (/ 1 (cbrt (- (acos a)))) (cbrt (- (acos a))))
  (* (/ 1 (cbrt (- (acos a)))) a)
  (/ (/ 1 (cbrt (- (acos a)))) (cbrt (- (acos a))))
  (* (/ 1 (cbrt (- (acos a)))) a)
  (/ (/ 1 (cbrt (- (acos a)))) (cbrt (- (acos a))))
  (* (/ 1 (cbrt (- (acos a)))) a)
  (/ (/ 1 (* (cbrt (/ 1 a)) (sqrt (- (acos a))))) (cbrt (/ 1 a)))
  (/ 1 (* (cbrt (/ 1 a)) (sqrt (- (acos a)))))
  (/ 1 (* (sqrt (/ 1 a)) (sqrt (- (acos a)))))
  (/ 1 (* (sqrt (/ 1 a)) (sqrt (- (acos a)))))
  (/ (* (cbrt a) (cbrt a)) (sqrt (- (acos a))))
  (* (cbrt a) (/ 1 (sqrt (- (acos a)))))
  (/ (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) (/ 1 (sqrt (- (acos a)))))
  (/ (sqrt a) (sqrt (- (acos a))))
  (/ (sqrt a) (sqrt (- (acos a))))
  (/ 1 (sqrt (- (acos a))))
  (* (/ 1 (sqrt (- (acos a)))) a)
  (/ (* (cbrt a) (cbrt a)) (sqrt (- (acos a))))
  (* (cbrt a) (/ 1 (sqrt (- (acos a)))))
  (/ (sqrt a) (sqrt (- (acos a))))
  (/ (sqrt a) (sqrt (- (acos a))))
  (/ 1 (sqrt (- (acos a))))
  (* (/ 1 (sqrt (- (acos a)))) a)
  (/ 1 (sqrt (- (acos a))))
  (* (/ 1 (sqrt (- (acos a)))) a)
  (/ 1 (sqrt (- (acos a))))
  (* (/ 1 (sqrt (- (acos a)))) a)
  (/ 1 (* (cbrt (/ 1 a)) (cbrt (/ 1 a))))
  (/ (/ 1 (- (acos a))) (cbrt (/ 1 a)))
  (/ 1 (sqrt (/ 1 a)))
  (/ (/ 1 (sqrt (/ 1 a))) (- (acos a)))
  (* (cbrt a) (cbrt a))
  (* (/ 1 (- (acos a))) (cbrt a))
  (sqrt a)
  (* (/ 1 (- (acos a))) (sqrt a))
  1
  (/ 1 (/ (- (acos a)) a))
  (* (cbrt a) (cbrt a))
  (* (/ 1 (- (acos a))) (cbrt a))
  (sqrt a)
  (* (/ 1 (- (acos a))) (sqrt a))
  1
  (/ 1 (/ (- (acos a)) a))
  (* (cbrt a) (cbrt a))
  (* (/ 1 (- (acos a))) (cbrt a))
  (sqrt a)
  (* (/ 1 (- (acos a))) (sqrt a))
  1
  (/ 1 (/ (- (acos a)) a))
  1
  (/ 1 (/ (- (acos a)) a))
  1
  (/ 1 (/ (- (acos a)) 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) (/ 1 (acos a)))
  (- (sqrt a))
  (/ (sqrt a) (acos a))
  -1
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  (- (* (cbrt a) (cbrt a)))
  (* (cbrt a) (/ 1 (acos a)))
  (- (sqrt a))
  (/ (sqrt a) (acos a))
  -1
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  (- (* (cbrt a) (cbrt a)))
  (* (cbrt a) (/ 1 (acos a)))
  (- (sqrt a))
  (/ (sqrt a) (acos a))
  -1
  (* (/ 1 (acos a)) a)
  -1
  (* (/ 1 (acos a)) a)
  -1
  (* (/ 1 (acos a)) a)
  (/ (/ (/ (/ 1 (cbrt (acos a))) (- (cbrt (acos a)))) (cbrt (/ 1 a))) (cbrt (/ 1 a)))
  (/ 1 (* (cbrt (/ 1 a)) (cbrt (acos a))))
  (/ 1 (* (sqrt (/ 1 a)) (- (* (cbrt (acos a)) (cbrt (acos a))))))
  (/ (/ 1 (cbrt (acos a))) (sqrt (/ 1 a)))
  (/ (* (cbrt a) (cbrt a)) (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (* (cbrt a) (/ 1 (cbrt (acos a))))
  (/ (sqrt a) (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (* (sqrt a) (/ 1 (cbrt (acos a))))
  (/ (/ 1 (cbrt (acos a))) (- (cbrt (acos a))))
  (/ (* 1 a) (cbrt (acos a)))
  (/ (* (cbrt a) (cbrt a)) (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (* (cbrt a) (/ 1 (cbrt (acos a))))
  (/ (sqrt a) (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (* (sqrt a) (/ 1 (cbrt (acos a))))
  (/ (/ 1 (cbrt (acos a))) (- (cbrt (acos a))))
  (/ (* 1 a) (cbrt (acos a)))
  (/ (* (cbrt a) (cbrt a)) (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (* (cbrt a) (/ 1 (cbrt (acos a))))
  (/ (sqrt a) (- (* (cbrt (acos a)) (cbrt (acos a)))))
  (* (sqrt a) (/ 1 (cbrt (acos a))))
  (/ (/ 1 (cbrt (acos a))) (- (cbrt (acos a))))
  (/ (* 1 a) (cbrt (acos a)))
  (/ (/ 1 (cbrt (acos a))) (- (cbrt (acos a))))
  (/ (* 1 a) (cbrt (acos a)))
  (/ (/ 1 (cbrt (acos a))) (- (cbrt (acos a))))
  (/ (* 1 a) (cbrt (acos a)))
  (/ (/ 1 (* (cbrt (/ 1 a)) (cbrt (/ 1 a)))) (- (sqrt (acos a))))
  (/ (/ 1 (sqrt (acos a))) (cbrt (/ 1 a)))
  (/ 1 (* (sqrt (/ 1 a)) (- (sqrt (acos a)))))
  (/ (/ 1 (sqrt (acos a))) (sqrt (/ 1 a)))
  (/ (* (cbrt a) (cbrt a)) (- (sqrt (acos a))))
  (/ (* 1 (cbrt a)) (sqrt (acos a)))
  (* (sqrt a) (/ 1 (- (sqrt (acos a)))))
  (/ (sqrt a) (sqrt (acos a)))
  (/ 1 (- (sqrt (acos a))))
  (/ (* 1 a) (sqrt (acos a)))
  (/ (* (cbrt a) (cbrt a)) (- (sqrt (acos a))))
  (/ (* 1 (cbrt a)) (sqrt (acos a)))
  (* (sqrt a) (/ 1 (- (sqrt (acos a)))))
  (/ (sqrt a) (sqrt (acos a)))
  (/ 1 (- (sqrt (acos a))))
  (/ (* 1 a) (sqrt (acos a)))
  (/ (* (cbrt a) (cbrt a)) (- (sqrt (acos a))))
  (/ (* 1 (cbrt a)) (sqrt (acos a)))
  (* (sqrt a) (/ 1 (- (sqrt (acos a)))))
  (/ (sqrt a) (sqrt (acos a)))
  (/ 1 (- (sqrt (acos a))))
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  (/ 1 (- (sqrt (acos a))))
  (/ (* 1 a) (sqrt (acos a)))
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  (/ (/ -1 (cbrt (/ 1 a))) (cbrt (/ 1 a)))
  (/ (/ 1 (acos a)) (cbrt (/ 1 a)))
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  (/ (/ 1 (acos a)) (sqrt (/ 1 a)))
  (- (* (cbrt a) (cbrt a)))
  (* (cbrt a) (/ 1 (acos a)))
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  (/ (sqrt a) (acos a))
  -1
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  (- (* (cbrt a) (cbrt a)))
  (* (cbrt a) (/ 1 (acos a)))
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  -1
  (* (/ 1 (acos a)) a)
  -1
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  -1
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  (/ 1 (* (* (cbrt (/ 1 a)) (cbrt (acos a))) (* (cbrt (/ 1 a)) (cbrt (acos a)))))
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  (/ (/ 1 (* (cbrt (acos a)) (cbrt (acos a)))) (sqrt (/ 1 a)))
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  (/ (* (cbrt a) (cbrt a)) (* (cbrt (acos a)) (cbrt (acos a))))
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  (/ 1 (* (cbrt (acos a)) (cbrt (acos a))))
  (/ (* 1 a) (- (cbrt (acos a))))
  (/ (* (cbrt a) (cbrt a)) (* (cbrt (acos a)) (cbrt (acos a))))
  (* (cbrt a) (/ 1 (- (cbrt (acos a)))))
  (/ (sqrt a) (* (cbrt (acos a)) (cbrt (acos a))))
  (* (sqrt a) (/ 1 (- (cbrt (acos a)))))
  (/ 1 (* (cbrt (acos a)) (cbrt (acos a))))
  (/ (* 1 a) (- (cbrt (acos a))))
  (/ (* (cbrt a) (cbrt a)) (* (cbrt (acos a)) (cbrt (acos a))))
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  (/ 1 (* (cbrt (acos a)) (cbrt (acos a))))
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  (/ 1 (* (cbrt (/ 1 a)) (cbrt (/ 1 a))))
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  (* (/ 1 (- (acos a))) (cbrt a))
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  1
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  (sqrt a)
  (* (/ 1 (- (acos a))) (sqrt a))
  1
  (/ 1 (/ (- (acos a)) a))
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  (* (/ 1 (- (acos a))) (cbrt a))
  (sqrt a)
  (* (/ 1 (- (acos a))) (sqrt a))
  1
  (/ 1 (/ (- (acos a)) a))
  1
  (/ 1 (/ (- (acos a)) a))
  1
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  (* (/ (/ 1 (cbrt (- (acos a)))) (cbrt (/ 1 a))) (/ (/ 1 (cbrt (- (acos a)))) (cbrt (/ 1 a))))
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  (/ (/ 1 (sqrt (/ 1 a))) (* (cbrt (- (acos a))) (cbrt (- (acos a)))))
  (/ (/ 1 (cbrt (- (acos a)))) (sqrt (/ 1 a)))
  (/ (* (cbrt a) (cbrt a)) (* (cbrt (- (acos a))) (cbrt (- (acos a)))))
  (* (/ 1 (cbrt (- (acos a)))) (cbrt a))
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  (* (/ 1 (cbrt (- (acos a)))) (sqrt a))
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  (* (/ 1 (cbrt (- (acos a)))) (sqrt a))
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  (/ (/ 1 (cbrt (- (acos a)))) (cbrt (- (acos a))))
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  (/ (/ 1 (* (cbrt (/ 1 a)) (sqrt (- (acos a))))) (cbrt (/ 1 a)))
  (/ 1 (* (cbrt (/ 1 a)) (sqrt (- (acos a)))))
  (/ 1 (* (sqrt (/ 1 a)) (sqrt (- (acos a)))))
  (/ 1 (* (sqrt (/ 1 a)) (sqrt (- (acos a)))))
  (/ (* (cbrt a) (cbrt a)) (sqrt (- (acos a))))
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  (/ (* (cbrt a) (cbrt a)) (sqrt (- (acos a))))
  (* (cbrt a) (/ 1 (sqrt (- (acos a)))))
  (/ (sqrt a) (sqrt (- (acos a))))
  (/ (sqrt a) (sqrt (- (acos a))))
  (/ 1 (sqrt (- (acos a))))
  (* (/ 1 (sqrt (- (acos a)))) a)
  (/ (* (cbrt a) (cbrt a)) (sqrt (- (acos a))))
  (* (cbrt a) (/ 1 (sqrt (- (acos a)))))
  (/ (sqrt a) (sqrt (- (acos a))))
  (/ (sqrt a) (sqrt (- (acos a))))
  (/ 1 (sqrt (- (acos a))))
  (* (/ 1 (sqrt (- (acos a)))) a)
  (/ 1 (sqrt (- (acos a))))
  (* (/ 1 (sqrt (- (acos a)))) a)
  (/ 1 (sqrt (- (acos a))))
  (* (/ 1 (sqrt (- (acos a)))) a)
  (/ 1 (* (cbrt (/ 1 a)) (cbrt (/ 1 a))))
  (/ (/ 1 (- (acos a))) (cbrt (/ 1 a)))
  (/ 1 (sqrt (/ 1 a)))
  (/ (/ 1 (sqrt (/ 1 a))) (- (acos a)))
  (* (cbrt a) (cbrt a))
  (* (/ 1 (- (acos a))) (cbrt a))
  (sqrt a)
  (* (/ 1 (- (acos a))) (sqrt a))
  1
  (/ 1 (/ (- (acos a)) a))
  (* (cbrt a) (cbrt a))
  (* (/ 1 (- (acos a))) (cbrt a))
  (sqrt a)
  (* (/ 1 (- (acos a))) (sqrt a))
  1
  (/ 1 (/ (- (acos a)) a))
  (* (cbrt a) (cbrt a))
  (* (/ 1 (- (acos a))) (cbrt a))
  (sqrt a)
  (* (/ 1 (- (acos a))) (sqrt a))
  1
  (/ 1 (/ (- (acos a)) a))
  1
  (/ 1 (/ (- (acos a)) a))
  1
  (/ 1 (/ (- (acos a)) a))
  (/ (/ -1 (cbrt (/ 1 a))) (cbrt (/ 1 a)))
  (/ (/ 1 (acos a)) (cbrt (/ 1 a)))
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  (* (/ 1 (- (acos a))) (sqrt a))
  1
  (/ 1 (/ (- (acos a)) a))
  1
  (/ 1 (/ (- (acos a)) a))
  1
  (/ 1 (/ (- (acos a)) a))
  (/ 1 (* (cbrt (/ 1 a)) (cbrt (/ 1 a))))
  (/ (/ 1 (- (acos a))) (cbrt (/ 1 a)))
  (/ 1 (sqrt (/ 1 a)))
  (/ (/ 1 (sqrt (/ 1 a))) (- (acos a)))
  (* (cbrt a) (cbrt a))
  (* (/ 1 (- (acos a))) (cbrt a))
  (sqrt a)
  (* (/ 1 (- (acos a))) (sqrt a))
  1
  (/ 1 (/ (- (acos a)) a))
  (* (cbrt a) (cbrt a))
  (* (/ 1 (- (acos a))) (cbrt a))
  (sqrt a)
  (* (/ 1 (- (acos a))) (sqrt a))
  1
  (/ 1 (/ (- (acos a)) a))
  (* (cbrt a) (cbrt a))
  (* (/ 1 (- (acos a))) (cbrt a))
  (sqrt a)
  (* (/ 1 (- (acos a))) (sqrt a))
  1
  (/ 1 (/ (- (acos a)) a))
  1
  (/ 1 (/ (- (acos a)) a))
  1
  (/ 1 (/ (- (acos a)) a))
  a
  (/ (- (acos a)) a)
  (/ (/ 1 (* (cbrt (/ 1 a)) (cbrt (/ 1 a)))) (- (acos a)))
  (/ (/ 1 (sqrt (/ 1 a))) (- (acos a)))
  (/ (* (cbrt a) (cbrt a)) (- (acos a)))
  (* (/ 1 (- (acos a))) (sqrt a))
  (/ 1 (- (acos a)))
  (/ (* (cbrt a) (cbrt a)) (- (acos a)))
  (* (/ 1 (- (acos a))) (sqrt a))
  (/ 1 (- (acos a)))
  (/ (* (cbrt a) (cbrt a)) (- (acos a)))
  (* (/ 1 (- (acos a))) (sqrt a))
  (/ 1 (- (acos a)))
  (/ 1 (- (acos a)))
  (/ 1 (- (acos a)))
  (/ 1 (* (cbrt (/ 1 (- (acos a)))) a))
  (/ 1 (* (sqrt (/ 1 (- (acos a)))) a))
  (* (/ 1 a) (cbrt (- (acos a))))
  (* (/ 1 a) (sqrt (- (acos a))))
  (/ (- (acos a)) a)
  (* (/ 1 a) (acos a))
  (* (/ 1 a) (cbrt (acos a)))
  (* (sqrt (acos a)) (/ 1 a))
  (* (/ 1 a) (acos a))
  (- (* (/ 1 a) (cbrt (acos a))))
  (* (/ 1 a) (- (sqrt (acos a))))
  (/ (- (acos a)) a)
  (* (/ 1 a) (cbrt (- (acos a))))
  (* (/ 1 a) (sqrt (- (acos a))))
  (/ (- (acos a)) a)
  (* (/ 1 a) (acos a))
  (* (/ 1 a) (cbrt (acos a)))
  (* (sqrt (acos a)) (/ 1 a))
  (* (/ 1 a) (acos a))
  (- (* (/ 1 a) (cbrt (acos a))))
  (* (/ 1 a) (- (sqrt (acos a))))
  (/ (- (acos a)) a)
  (* (/ 1 a) (cbrt (- (acos a))))
  (* (/ 1 a) (sqrt (- (acos a))))
  (/ (- (acos a)) a)
  (* (/ 1 a) (acos a))
  (* (/ 1 a) (cbrt (acos a)))
  (* (sqrt (acos a)) (/ 1 a))
  (* (/ 1 a) (acos a))
  (- (* (/ 1 a) (cbrt (acos a))))
  (* (/ 1 a) (- (sqrt (acos a))))
  (/ (- (acos a)) a)
  (/ (- (acos a)) a)
  (/ (- (acos a)) a)
  (/ 1 (- (acos a)))
  (/ (- (acos a)) a)
  -1
  (- (log (- (acos a))))
  (- (log (- (acos a))))
  (- (log (- (acos a))))
  (- (log (- (acos a))))
  (exp (/ 1 (- (acos a))))
  (/ (/ 1 (* (acos a) (acos a))) (- (acos a)))
  (* (cbrt (/ 1 (- (acos a)))) (cbrt (/ 1 (- (acos a)))))
  (cbrt (/ 1 (- (acos a))))
  (/ (/ 1 (* (acos a) (acos a))) (- (acos a)))
  (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))
13.126 * * * [progress]: adding candidates to table
14.452 * * [progress]: iteration 4 / 4
14.453 * * * [progress]: picking best candidate
14.506 * * * * [pick]: Picked  #<alt (λ (a) (/ 1 (* (- (acos a)) (/ 1 a))))>
14.506 * * * [progress]: localizing error
14.530 * * * [progress]: generating rewritten candidates
14.530 * * * * [progress]: [ 1 / 2 ] rewriting at (2 2)
14.573 * * * * [progress]: [ 2 / 2 ] rewriting at (2)
14.639 * * * [progress]: generating series expansions
14.639 * * * * [progress]: [ 1 / 2 ] generating series at (2 2)
14.640 * [backup-simplify]: Simplify (* (- (acos a)) (/ 1 a)) into (* -1 (/ (acos a) a))
14.640 * [approximate]: Taking taylor expansion of (* -1 (/ (acos a) a)) in (a) around 0
14.640 * [taylor]: Taking taylor expansion of (* -1 (/ (acos a) a)) in a
14.640 * [taylor]: Taking taylor expansion of -1 in a
14.640 * [backup-simplify]: Simplify -1 into -1
14.640 * [taylor]: Taking taylor expansion of (/ (acos a) a) in a
14.640 * [taylor]: Taking taylor expansion of (acos a) in a
14.640 * [backup-simplify]: Simplify (acos a) into (acos a)
14.640 * [taylor]: Taking taylor expansion of a in a
14.640 * [backup-simplify]: Simplify 0 into 0
14.640 * [backup-simplify]: Simplify 1 into 1
14.640 * [backup-simplify]: Simplify (/ (acos a) 1) into (acos a)
14.640 * [taylor]: Taking taylor expansion of (* -1 (/ (acos a) a)) in a
14.640 * [taylor]: Taking taylor expansion of -1 in a
14.640 * [backup-simplify]: Simplify -1 into -1
14.640 * [taylor]: Taking taylor expansion of (/ (acos a) a) in a
14.640 * [taylor]: Taking taylor expansion of (acos a) in a
14.640 * [backup-simplify]: Simplify (acos a) into (acos a)
14.640 * [taylor]: Taking taylor expansion of a in a
14.640 * [backup-simplify]: Simplify 0 into 0
14.640 * [backup-simplify]: Simplify 1 into 1
14.641 * [backup-simplify]: Simplify (/ (acos a) 1) into (acos a)
14.641 * [backup-simplify]: Simplify (* -1 (acos a)) into (* -1 (acos a))
14.641 * [backup-simplify]: Simplify (* -1 (acos a)) into (* -1 (acos a))
14.642 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* (acos a) (/ 0 1)))) into 0
14.643 * [backup-simplify]: Simplify (+ (* -1 0) (* 0 (acos a))) into 0
14.643 * [backup-simplify]: Simplify 0 into 0
14.644 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* (acos a) (/ 0 1)) (* 0 (/ 0 1)))) into 0
14.645 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (* 0 (acos a)))) into 0
14.645 * [backup-simplify]: Simplify 0 into 0
14.647 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* (acos a) (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
14.648 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos a))))) into 0
14.648 * [backup-simplify]: Simplify 0 into 0
14.651 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* (acos a) (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
14.653 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos a)))))) into 0
14.653 * [backup-simplify]: Simplify 0 into 0
14.656 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* (acos a) (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
14.658 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos a))))))) into 0
14.658 * [backup-simplify]: Simplify 0 into 0
14.661 * [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
14.663 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos a)))))))) into 0
14.663 * [backup-simplify]: Simplify 0 into 0
14.663 * [backup-simplify]: Simplify (* (* -1 (acos a)) (/ 1 a)) into (* -1 (/ (acos a) a))
14.664 * [backup-simplify]: Simplify (* (- (acos (/ 1 a))) (/ 1 (/ 1 a))) into (* -1 (* (acos (/ 1 a)) a))
14.664 * [approximate]: Taking taylor expansion of (* -1 (* (acos (/ 1 a)) a)) in (a) around 0
14.664 * [taylor]: Taking taylor expansion of (* -1 (* (acos (/ 1 a)) a)) in a
14.664 * [taylor]: Taking taylor expansion of -1 in a
14.664 * [backup-simplify]: Simplify -1 into -1
14.664 * [taylor]: Taking taylor expansion of (* (acos (/ 1 a)) a) in a
14.664 * [taylor]: Taking taylor expansion of (acos (/ 1 a)) in a
14.664 * [backup-simplify]: Simplify (acos (/ 1 a)) into (acos (/ 1 a))
14.664 * [taylor]: Taking taylor expansion of a in a
14.664 * [backup-simplify]: Simplify 0 into 0
14.664 * [backup-simplify]: Simplify 1 into 1
14.664 * [taylor]: Taking taylor expansion of (* -1 (* (acos (/ 1 a)) a)) in a
14.664 * [taylor]: Taking taylor expansion of -1 in a
14.664 * [backup-simplify]: Simplify -1 into -1
14.664 * [taylor]: Taking taylor expansion of (* (acos (/ 1 a)) a) in a
14.664 * [taylor]: Taking taylor expansion of (acos (/ 1 a)) in a
14.664 * [backup-simplify]: Simplify (acos (/ 1 a)) into (acos (/ 1 a))
14.664 * [taylor]: Taking taylor expansion of a in a
14.664 * [backup-simplify]: Simplify 0 into 0
14.664 * [backup-simplify]: Simplify 1 into 1
14.665 * [backup-simplify]: Simplify (* (acos (/ 1 a)) 0) into 0
14.665 * [backup-simplify]: Simplify (* -1 0) into 0
14.665 * [backup-simplify]: Simplify 0 into 0
14.666 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 1) (* 0 0)) into (acos (/ 1 a))
14.666 * [backup-simplify]: Simplify (+ (* -1 (acos (/ 1 a))) (* 0 0)) into (- (acos (/ 1 a)))
14.666 * [backup-simplify]: Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
14.667 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 1) (* 0 0))) into 0
14.668 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 (acos (/ 1 a))) (* 0 0))) into 0
14.668 * [backup-simplify]: Simplify 0 into 0
14.669 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
14.670 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 (acos (/ 1 a))) (* 0 0)))) into 0
14.670 * [backup-simplify]: Simplify 0 into 0
14.671 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))) into 0
14.673 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (acos (/ 1 a))) (* 0 0))))) into 0
14.673 * [backup-simplify]: Simplify 0 into 0
14.674 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))))) into 0
14.676 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (acos (/ 1 a))) (* 0 0)))))) into 0
14.676 * [backup-simplify]: Simplify 0 into 0
14.677 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))))) into 0
14.679 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (acos (/ 1 a))) (* 0 0))))))) into 0
14.679 * [backup-simplify]: Simplify 0 into 0
14.681 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))))))) into 0
14.683 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (acos (/ 1 a))) (* 0 0)))))))) into 0
14.683 * [backup-simplify]: Simplify 0 into 0
14.684 * [backup-simplify]: Simplify (* (- (acos (/ 1 (/ 1 a)))) (/ 1 a)) into (* -1 (/ (acos a) a))
14.684 * [backup-simplify]: Simplify (* (- (acos (/ 1 (- a)))) (/ 1 (/ 1 (- a)))) into (* a (acos (/ -1 a)))
14.684 * [approximate]: Taking taylor expansion of (* a (acos (/ -1 a))) in (a) around 0
14.684 * [taylor]: Taking taylor expansion of (* a (acos (/ -1 a))) in a
14.684 * [taylor]: Taking taylor expansion of a in a
14.684 * [backup-simplify]: Simplify 0 into 0
14.684 * [backup-simplify]: Simplify 1 into 1
14.684 * [taylor]: Taking taylor expansion of (acos (/ -1 a)) in a
14.684 * [backup-simplify]: Simplify (acos (/ -1 a)) into (acos (/ -1 a))
14.684 * [taylor]: Taking taylor expansion of (* a (acos (/ -1 a))) in a
14.684 * [taylor]: Taking taylor expansion of a in a
14.684 * [backup-simplify]: Simplify 0 into 0
14.684 * [backup-simplify]: Simplify 1 into 1
14.684 * [taylor]: Taking taylor expansion of (acos (/ -1 a)) in a
14.684 * [backup-simplify]: Simplify (acos (/ -1 a)) into (acos (/ -1 a))
14.685 * [backup-simplify]: Simplify (* 0 (acos (/ -1 a))) into 0
14.685 * [backup-simplify]: Simplify 0 into 0
14.685 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 (acos (/ -1 a)))) into (acos (/ -1 a))
14.685 * [backup-simplify]: Simplify (acos (/ -1 a)) into (acos (/ -1 a))
14.686 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (acos (/ -1 a))))) into 0
14.686 * [backup-simplify]: Simplify 0 into 0
14.687 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))) into 0
14.687 * [backup-simplify]: Simplify 0 into 0
14.689 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a))))))) into 0
14.689 * [backup-simplify]: Simplify 0 into 0
14.691 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))))) into 0
14.691 * [backup-simplify]: Simplify 0 into 0
14.693 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a))))))))) into 0
14.693 * [backup-simplify]: Simplify 0 into 0
14.696 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))))))) into 0
14.696 * [backup-simplify]: Simplify 0 into 0
14.697 * [backup-simplify]: Simplify (* (acos (/ -1 (/ 1 (- a)))) (/ 1 (- a))) into (* -1 (/ (acos a) a))
14.697 * * * * [progress]: [ 2 / 2 ] generating series at (2)
14.697 * [backup-simplify]: Simplify (/ 1 (* (- (acos a)) (/ 1 a))) into (* -1 (/ a (acos a)))
14.697 * [approximate]: Taking taylor expansion of (* -1 (/ a (acos a))) in (a) around 0
14.697 * [taylor]: Taking taylor expansion of (* -1 (/ a (acos a))) in a
14.697 * [taylor]: Taking taylor expansion of -1 in a
14.697 * [backup-simplify]: Simplify -1 into -1
14.697 * [taylor]: Taking taylor expansion of (/ a (acos a)) in a
14.697 * [taylor]: Taking taylor expansion of a in a
14.697 * [backup-simplify]: Simplify 0 into 0
14.697 * [backup-simplify]: Simplify 1 into 1
14.697 * [taylor]: Taking taylor expansion of (acos a) in a
14.697 * [backup-simplify]: Simplify (acos a) into (acos a)
14.697 * [backup-simplify]: Simplify (/ 1 (acos a)) into (/ 1 (acos a))
14.697 * [taylor]: Taking taylor expansion of (* -1 (/ a (acos a))) in a
14.697 * [taylor]: Taking taylor expansion of -1 in a
14.697 * [backup-simplify]: Simplify -1 into -1
14.697 * [taylor]: Taking taylor expansion of (/ a (acos a)) in a
14.697 * [taylor]: Taking taylor expansion of a in a
14.698 * [backup-simplify]: Simplify 0 into 0
14.698 * [backup-simplify]: Simplify 1 into 1
14.698 * [taylor]: Taking taylor expansion of (acos a) in a
14.698 * [backup-simplify]: Simplify (acos a) into (acos a)
14.698 * [backup-simplify]: Simplify (/ 1 (acos a)) into (/ 1 (acos a))
14.698 * [backup-simplify]: Simplify (* -1 (/ 1 (acos a))) into (/ -1 (acos a))
14.698 * [backup-simplify]: Simplify (/ -1 (acos a)) into (/ -1 (acos a))
14.698 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))))) into 0
14.699 * [backup-simplify]: Simplify (+ (* -1 0) (* 0 (/ 1 (acos a)))) into 0
14.699 * [backup-simplify]: Simplify 0 into 0
14.699 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
14.700 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (* 0 (/ 1 (acos a))))) into 0
14.700 * [backup-simplify]: Simplify 0 into 0
14.701 * [backup-simplify]: Simplify (- (/ 0 (acos a)) (+ (* (/ 1 (acos a)) (/ 0 (acos a))) (* 0 (/ 0 (acos a))) (* 0 (/ 0 (acos a))))) into 0
14.702 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (acos a)))))) into 0
14.702 * [backup-simplify]: Simplify 0 into 0
14.703 * [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
14.704 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (acos a))))))) into 0
14.704 * [backup-simplify]: Simplify 0 into 0
14.705 * [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
14.707 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (acos a)))))))) into 0
14.707 * [backup-simplify]: Simplify 0 into 0
14.708 * [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
14.710 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 (acos a))))))))) into 0
14.710 * [backup-simplify]: Simplify 0 into 0
14.710 * [backup-simplify]: Simplify (* (/ -1 (acos a)) a) into (* -1 (/ a (acos a)))
14.710 * [backup-simplify]: Simplify (/ 1 (* (- (acos (/ 1 a))) (/ 1 (/ 1 a)))) into (/ -1 (* (acos (/ 1 a)) a))
14.710 * [approximate]: Taking taylor expansion of (/ -1 (* (acos (/ 1 a)) a)) in (a) around 0
14.710 * [taylor]: Taking taylor expansion of (/ -1 (* (acos (/ 1 a)) a)) in a
14.710 * [taylor]: Taking taylor expansion of -1 in a
14.710 * [backup-simplify]: Simplify -1 into -1
14.710 * [taylor]: Taking taylor expansion of (* (acos (/ 1 a)) a) in a
14.710 * [taylor]: Taking taylor expansion of (acos (/ 1 a)) in a
14.711 * [backup-simplify]: Simplify (acos (/ 1 a)) into (acos (/ 1 a))
14.711 * [taylor]: Taking taylor expansion of a in a
14.711 * [backup-simplify]: Simplify 0 into 0
14.711 * [backup-simplify]: Simplify 1 into 1
14.711 * [backup-simplify]: Simplify (* (acos (/ 1 a)) 0) into 0
14.711 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 1) (* 0 0)) into (acos (/ 1 a))
14.711 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
14.711 * [taylor]: Taking taylor expansion of (/ -1 (* (acos (/ 1 a)) a)) in a
14.711 * [taylor]: Taking taylor expansion of -1 in a
14.711 * [backup-simplify]: Simplify -1 into -1
14.712 * [taylor]: Taking taylor expansion of (* (acos (/ 1 a)) a) in a
14.712 * [taylor]: Taking taylor expansion of (acos (/ 1 a)) in a
14.712 * [backup-simplify]: Simplify (acos (/ 1 a)) into (acos (/ 1 a))
14.712 * [taylor]: Taking taylor expansion of a in a
14.712 * [backup-simplify]: Simplify 0 into 0
14.712 * [backup-simplify]: Simplify 1 into 1
14.712 * [backup-simplify]: Simplify (* (acos (/ 1 a)) 0) into 0
14.712 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 1) (* 0 0)) into (acos (/ 1 a))
14.712 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
14.713 * [backup-simplify]: Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
14.713 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 1) (* 0 0))) into 0
14.714 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))))) into 0
14.714 * [backup-simplify]: Simplify 0 into 0
14.715 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
14.715 * [backup-simplify]: Simplify (- (/ 0 (acos (/ 1 a))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (acos (/ 1 a)))) (* 0 (/ 0 (acos (/ 1 a)))))) into 0
14.715 * [backup-simplify]: Simplify 0 into 0
14.716 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))) into 0
14.717 * [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
14.717 * [backup-simplify]: Simplify 0 into 0
14.718 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))))) into 0
14.719 * [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
14.719 * [backup-simplify]: Simplify 0 into 0
14.720 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))))) into 0
14.721 * [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
14.721 * [backup-simplify]: Simplify 0 into 0
14.723 * [backup-simplify]: Simplify (+ (* (acos (/ 1 a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))))))) into 0
14.724 * [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
14.724 * [backup-simplify]: Simplify 0 into 0
14.724 * [backup-simplify]: Simplify (* (/ -1 (acos (/ 1 (/ 1 a)))) (/ 1 (/ 1 a))) into (* -1 (/ a (acos a)))
14.724 * [backup-simplify]: Simplify (/ 1 (* (- (acos (/ 1 (- a)))) (/ 1 (/ 1 (- a))))) into (/ 1 (* a (acos (/ -1 a))))
14.725 * [approximate]: Taking taylor expansion of (/ 1 (* a (acos (/ -1 a)))) in (a) around 0
14.725 * [taylor]: Taking taylor expansion of (/ 1 (* a (acos (/ -1 a)))) in a
14.725 * [taylor]: Taking taylor expansion of (* a (acos (/ -1 a))) in a
14.725 * [taylor]: Taking taylor expansion of a in a
14.725 * [backup-simplify]: Simplify 0 into 0
14.725 * [backup-simplify]: Simplify 1 into 1
14.725 * [taylor]: Taking taylor expansion of (acos (/ -1 a)) in a
14.725 * [backup-simplify]: Simplify (acos (/ -1 a)) into (acos (/ -1 a))
14.725 * [backup-simplify]: Simplify (* 0 (acos (/ -1 a))) into 0
14.725 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 (acos (/ -1 a)))) into (acos (/ -1 a))
14.726 * [backup-simplify]: Simplify (/ 1 (acos (/ -1 a))) into (/ 1 (acos (/ -1 a)))
14.726 * [taylor]: Taking taylor expansion of (/ 1 (* a (acos (/ -1 a)))) in a
14.726 * [taylor]: Taking taylor expansion of (* a (acos (/ -1 a))) in a
14.726 * [taylor]: Taking taylor expansion of a in a
14.726 * [backup-simplify]: Simplify 0 into 0
14.726 * [backup-simplify]: Simplify 1 into 1
14.726 * [taylor]: Taking taylor expansion of (acos (/ -1 a)) in a
14.726 * [backup-simplify]: Simplify (acos (/ -1 a)) into (acos (/ -1 a))
14.726 * [backup-simplify]: Simplify (* 0 (acos (/ -1 a))) into 0
14.727 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 (acos (/ -1 a)))) into (acos (/ -1 a))
14.727 * [backup-simplify]: Simplify (/ 1 (acos (/ -1 a))) into (/ 1 (acos (/ -1 a)))
14.727 * [backup-simplify]: Simplify (/ 1 (acos (/ -1 a))) into (/ 1 (acos (/ -1 a)))
14.728 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 (acos (/ -1 a))))) into 0
14.728 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))))) into 0
14.728 * [backup-simplify]: Simplify 0 into 0
14.730 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))) into 0
14.730 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
14.730 * [backup-simplify]: Simplify 0 into 0
14.732 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a))))))) into 0
14.732 * [backup-simplify]: Simplify (- (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))) (* 0 (/ 0 (acos (/ -1 a)))))) into 0
14.732 * [backup-simplify]: Simplify 0 into 0
14.734 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))))) into 0
14.735 * [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
14.735 * [backup-simplify]: Simplify 0 into 0
14.737 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a))))))))) into 0
14.738 * [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
14.738 * [backup-simplify]: Simplify 0 into 0
14.740 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (acos (/ -1 a)))))))))) into 0
14.741 * [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
14.741 * [backup-simplify]: Simplify 0 into 0
14.742 * [backup-simplify]: Simplify (* (/ 1 (acos (/ -1 (/ 1 (- a))))) (/ 1 (/ 1 (- a)))) into (* -1 (/ a (acos a)))
14.742 * * * [progress]: simplifying candidates
14.744 * [simplify]: Simplifying:
  (* (- (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)))
  (log (* (- (acos a)) (/ 1 a)))
  (exp (* (- (acos a)) (/ 1 a)))
  (* (* (* (- (acos a)) (- (acos a))) (- (acos a))) (/ (* (* 1 1) 1) (* (* a a) a)))
  (* (* (* (- (acos a)) (- (acos a))) (- (acos a))) (* (* (/ 1 a) (/ 1 a)) (/ 1 a)))
  (* (cbrt (* (- (acos a)) (/ 1 a))) (cbrt (* (- (acos a)) (/ 1 a))))
  (cbrt (* (- (acos a)) (/ 1 a)))
  (* (* (* (- (acos a)) (/ 1 a)) (* (- (acos a)) (/ 1 a))) (* (- (acos a)) (/ 1 a)))
  (sqrt (* (- (acos a)) (/ 1 a)))
  (sqrt (* (- (acos a)) (/ 1 a)))
  (* (sqrt (- (acos a))) (sqrt (/ 1 a)))
  (* (sqrt (- (acos a))) (sqrt (/ 1 a)))
  (* (sqrt (- (acos a))) (/ (sqrt 1) (sqrt a)))
  (* (sqrt (- (acos a))) (/ (sqrt 1) (sqrt a)))
  (* (sqrt (- (acos a))) (/ 1 (sqrt a)))
  (* (sqrt (- (acos a))) (/ 1 (sqrt a)))
  (* (acos a) (/ 1 a))
  (* (- (acos a)) (* (cbrt (/ 1 a)) (cbrt (/ 1 a))))
  (* (- (acos a)) (sqrt (/ 1 a)))
  (* (- (acos a)) (/ (* (cbrt 1) (cbrt 1)) (* (cbrt a) (cbrt a))))
  (* (- (acos a)) (/ (* (cbrt 1) (cbrt 1)) (sqrt a)))
  (* (- (acos a)) (/ (* (cbrt 1) (cbrt 1)) 1))
  (* (- (acos a)) (/ (sqrt 1) (* (cbrt a) (cbrt a))))
  (* (- (acos a)) (/ (sqrt 1) (sqrt a)))
  (* (- (acos a)) (/ (sqrt 1) 1))
  (* (- (acos a)) (/ 1 (* (cbrt a) (cbrt a))))
  (* (- (acos a)) (/ 1 (sqrt a)))
  (* (- (acos a)) (/ 1 1))
  (* (- (acos a)) 1)
  (* (- (acos a)) 1)
  (* (cbrt (- (acos a))) (/ 1 a))
  (* (sqrt (- (acos a))) (/ 1 a))
  (* (- (acos a)) (/ 1 a))
  (* (acos a) (/ 1 a))
  (* (cbrt (acos a)) (/ 1 a))
  (* (sqrt (acos a)) (/ 1 a))
  (* (acos a) (/ 1 a))
  (* (- (cbrt (acos a))) (/ 1 a))
  (* (- (sqrt (acos a))) (/ 1 a))
  (* (- (acos a)) (/ 1 a))
  (* (- (acos a)) 1)
  (- 1)
  (- 1)
  (- (+ (log (- (acos a))) (- (log a))))
  (- (+ (log (- (acos a))) (- 0 (log a))))
  (- (+ (log (- (acos a))) (- (log 1) (log a))))
  (- (+ (log (- (acos a))) (log (/ 1 a))))
  (- (log (* (- (acos a)) (/ 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))))
  (- 0 (log (* (- (acos a)) (/ 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) (log (* (- (acos a)) (/ 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 1) 1) (* (* (* (- (acos a)) (/ 1 a)) (* (- (acos a)) (/ 1 a))) (* (- (acos 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) (cbrt 1)) (- (acos a)))
  (/ (cbrt 1) (/ 1 a))
  (/ (sqrt 1) (- (acos a)))
  (/ (sqrt 1) (/ 1 a))
  (/ 1 (- (acos a)))
  (/ 1 (/ 1 a))
  (/ 1 (* (- (acos a)) (/ 1 a)))
  (/ (* (- (acos a)) (/ 1 a)) 1)
  (/ 1 (- (acos a)))
  (/ (* (- (acos a)) (/ 1 a)) (cbrt 1))
  (/ (* (- (acos a)) (/ 1 a)) (sqrt 1))
  (/ (* (- (acos a)) (/ 1 a)) 1)
  (/ 1 (- (acos a)))
  (/ 1 (* (- (acos a)) 1))
  (* -1 (/ (acos a) a))
  (* -1 (/ (acos a) a))
  (* -1 (/ (acos a) a))
  (* -1 (/ a (acos a)))
  (* -1 (/ a (acos a)))
  (* -1 (/ a (acos a)))
14.747 * * [simplify]: iteration 0: 125 enodes
14.849 * * [simplify]: iteration 1: 346 enodes
15.060 * * [simplify]: iteration 2: 894 enodes
16.500 * * [simplify]: iteration 3: 2568 enodes
17.816 * * [simplify]: iteration complete: 5023 enodes
17.816 * * [simplify]: Extracting #0: cost 32 inf + 0
17.819 * * [simplify]: Extracting #1: cost 809 inf + 2
17.832 * * [simplify]: Extracting #2: cost 1231 inf + 20950
17.891 * * [simplify]: Extracting #3: cost 372 inf + 212477
17.999 * * [simplify]: Extracting #4: cost 10 inf + 298353
18.182 * * [simplify]: Extracting #5: cost 1 inf + 300716
18.322 * * [simplify]: Extracting #6: cost 0 inf + 301249
18.432 * [simplify]: Simplified to:
  (/ (- (acos a)) a)
  (log (/ (- (acos a)) a))
  (log (/ (- (acos a)) a))
  (log (/ (- (acos a)) a))
  (log (/ (- (acos a)) a))
  (log (/ (- (acos a)) a))
  (exp (/ (- (acos a)) a))
  (- (* (/ (acos a) a) (* (/ (acos a) a) (/ (acos a) a))))
  (- (* (/ (acos a) a) (* (/ (acos a) a) (/ (acos 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))
  (* (sqrt (/ 1 a)) (sqrt (- (acos a))))
  (* (sqrt (/ 1 a)) (sqrt (- (acos a))))
  (/ (sqrt (- (acos a))) (sqrt a))
  (/ (sqrt (- (acos a))) (sqrt a))
  (/ (sqrt (- (acos a))) (sqrt a))
  (/ (sqrt (- (acos a))) (sqrt a))
  (/ (acos a) a)
  (* (cbrt (/ 1 a)) (* (cbrt (/ 1 a)) (- (acos a))))
  (* (sqrt (/ 1 a)) (- (acos a)))
  (- (/ (acos a) (* (cbrt a) (cbrt a))))
  (- (/ (acos a) (sqrt a)))
  (- (acos a))
  (- (/ (acos a) (* (cbrt a) (cbrt a))))
  (- (/ (acos a) (sqrt a)))
  (- (acos a))
  (- (/ (acos a) (* (cbrt a) (cbrt a))))
  (- (/ (acos a) (sqrt a)))
  (- (acos a))
  (- (acos a))
  (- (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)
  (- (acos a))
  -1
  -1
  (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))))
  (* (/ a (- (acos a))) (* (/ a (- (acos a))) (/ a (- (acos a)))))
  (* (/ a (- (acos a))) (* (/ a (- (acos a))) (/ a (- (acos a)))))
  (* (/ a (- (acos a))) (* (/ a (- (acos a))) (/ 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))))
  -1
  (/ (acos a) a)
  (/ 1 (- (acos a)))
  a
  (/ 1 (- (acos a)))
  a
  (/ 1 (- (acos a)))
  a
  (/ a (- (acos a)))
  (/ (- (acos a)) a)
  (/ 1 (- (acos a)))
  (/ (- (acos a)) a)
  (/ (- (acos a)) a)
  (/ (- (acos a)) a)
  (/ 1 (- (acos a)))
  (/ 1 (- (acos a)))
  (/ (- (acos a)) a)
  (/ (- (acos a)) a)
  (/ (- (acos a)) a)
  (/ (- a) (acos a))
  (/ (- a) (acos a))
  (/ (- a) (acos a))
18.438 * * * [progress]: adding candidates to table
18.777 * [progress]: [Phase 3 of 3] Extracting.
18.777 * * [regime]: Finding splitpoints for: (#<alt (λ (a) (* (/ 1 (* (cbrt (/ (- (acos a)) a)) (cbrt (/ (- (acos a)) a)))) (/ 1 (cbrt (/ (- (acos a)) a)))))> #<alt (λ (a) (/ 1 (* (- (acos a)) (/ 1 a))))> #<alt (λ (a) (/ (cbrt (/ (/ 1 (* (acos a) (acos a))) (- (acos a)))) (/ 1 a)))> #<alt (λ (a) (/ a (- (acos a))))> #<alt (λ (a) (/ (/ 1 (- (acos a))) (/ 1 a)))> #<alt (λ (a) (* (* (/ (cbrt a) (sqrt (acos a))) (cbrt a)) (/ (cbrt a) (- (sqrt (acos a))))))> #<alt (λ (a) (/ 1 (* (sqrt (* (- (acos a)) (/ 1 a))) (sqrt (* (- (acos a)) (/ 1 a))))))>)
18.779 * * * [regime-changes]: Trying 2 branch expressions: ((/ a (- (acos a))) a)
18.779 * * * * [regimes]: Trying to branch on (/ a (- (acos a))) from (#<alt (λ (a) (* (/ 1 (* (cbrt (/ (- (acos a)) a)) (cbrt (/ (- (acos a)) a)))) (/ 1 (cbrt (/ (- (acos a)) a)))))> #<alt (λ (a) (/ 1 (* (- (acos a)) (/ 1 a))))> #<alt (λ (a) (/ (cbrt (/ (/ 1 (* (acos a) (acos a))) (- (acos a)))) (/ 1 a)))> #<alt (λ (a) (/ a (- (acos a))))> #<alt (λ (a) (/ (/ 1 (- (acos a))) (/ 1 a)))> #<alt (λ (a) (* (* (/ (cbrt a) (sqrt (acos a))) (cbrt a)) (/ (cbrt a) (- (sqrt (acos a))))))> #<alt (λ (a) (/ 1 (* (sqrt (* (- (acos a)) (/ 1 a))) (sqrt (* (- (acos a)) (/ 1 a))))))>)
18.867 * * * * [regimes]: Trying to branch on a from (#<alt (λ (a) (* (/ 1 (* (cbrt (/ (- (acos a)) a)) (cbrt (/ (- (acos a)) a)))) (/ 1 (cbrt (/ (- (acos a)) a)))))> #<alt (λ (a) (/ 1 (* (- (acos a)) (/ 1 a))))> #<alt (λ (a) (/ (cbrt (/ (/ 1 (* (acos a) (acos a))) (- (acos a)))) (/ 1 a)))> #<alt (λ (a) (/ a (- (acos a))))> #<alt (λ (a) (/ (/ 1 (- (acos a))) (/ 1 a)))> #<alt (λ (a) (* (* (/ (cbrt a) (sqrt (acos a))) (cbrt a)) (/ (cbrt a) (- (sqrt (acos a))))))> #<alt (λ (a) (/ 1 (* (sqrt (* (- (acos a)) (/ 1 a))) (sqrt (* (- (acos a)) (/ 1 a))))))>)
18.944 * * * [regime]: Found split indices: #<option (#s(si 3 255))>
18.944 * [simplify]: Simplifying:
  (/ a (- (acos a)))
18.945 * * [simplify]: iteration 0: 4 enodes
18.945 * * [simplify]: iteration complete: 4 enodes
18.945 * * [simplify]: Extracting #0: cost 1 inf + 0
18.945 * * [simplify]: Extracting #1: cost 3 inf + 0
18.945 * * [simplify]: Extracting #2: cost 3 inf + 1
18.945 * * [simplify]: Extracting #3: cost 1 inf + 223
18.945 * * [simplify]: Extracting #4: cost 0 inf + 394
18.945 * [simplify]: Simplified to:
  (/ a (- (acos a)))
21.808 * [regime-testing]: Baseline error score: 0.2501562695336917
21.825 * [regime-testing]: Oracle error score: 0.016127015876984622
21.859 * [regime-testing]: End program error score: 0.2501562695336917