31.168 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.011 * * * [progress]: [2/2] Setting up program.
0.013 * [progress]: [Phase 2 of 3] Improving.
0.013 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ (* x x) 1.0)
0.015 * * [simplify]: iteration  0 :  5  enodes  (cost  2 )
0.017 * * [simplify]: iteration  1 :  5  enodes  (cost  2 )
0.017 * [simplify]: Simplified to:
   (+ (* x x) 1.0)
0.017 * * [progress]: iteration 1 / 4
0.017 * * * [progress]: picking best candidate
0.018 * * * * [pick]: Picked  #<alt (λ (x) (+ (* x x) 1.0))>
0.018 * * * [progress]: localizing error
0.023 * * * [progress]: generating rewritten candidates
0.023 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.027 * * * [progress]: generating series expansions
0.027 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.028 * [approximate]: Taking taylor expansion of (+ (pow x 2) 1.0) in (x) around 0
0.028 * [taylor]: Taking taylor expansion of (+ (pow x 2) 1.0) in x
0.028 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.028 * [taylor]: Taking taylor expansion of x in x
0.028 * [taylor]: Taking taylor expansion of 1.0 in x
0.028 * [taylor]: Taking taylor expansion of (+ (pow x 2) 1.0) in x
0.028 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.028 * [taylor]: Taking taylor expansion of x in x
0.028 * [taylor]: Taking taylor expansion of 1.0 in x
0.034 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) 1.0) in (x) around 0
0.034 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) 1.0) in x
0.035 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.035 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.035 * [taylor]: Taking taylor expansion of x in x
0.035 * [taylor]: Taking taylor expansion of 1.0 in x
0.035 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) 1.0) in x
0.035 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.035 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.035 * [taylor]: Taking taylor expansion of x in x
0.036 * [taylor]: Taking taylor expansion of 1.0 in x
0.047 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) 1.0) in (x) around 0
0.048 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) 1.0) in x
0.048 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.048 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.048 * [taylor]: Taking taylor expansion of x in x
0.048 * [taylor]: Taking taylor expansion of 1.0 in x
0.048 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) 1.0) in x
0.048 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.048 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.048 * [taylor]: Taking taylor expansion of x in x
0.049 * [taylor]: Taking taylor expansion of 1.0 in x
0.060 * * * [progress]: simplifying candidates
0.061 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* (exp (* x x)) (exp 1.0))
  (log (+ (* x x) 1.0))
  (exp (+ (* x x) 1.0))
  (* (cbrt (+ (* x x) 1.0)) (cbrt (+ (* x x) 1.0)))
  (cbrt (+ (* x x) 1.0))
  (* (* (+ (* x x) 1.0) (+ (* x x) 1.0)) (+ (* x x) 1.0))
  (sqrt (+ (* x x) 1.0))
  (sqrt (+ (* x x) 1.0))
  (+ (pow (* x x) 3) (pow 1.0 3))
  (+ (* (* x x) (* x x)) (- (* 1.0 1.0) (* (* x x) 1.0)))
  (- (* (* x x) (* x x)) (* 1.0 1.0))
  (- (* x x) 1.0)
  (+ (pow x 2) 1.0)
  (+ (pow x 2) 1.0)
  (+ (pow x 2) 1.0)
0.064 * * [simplify]: iteration  0 :  81  enodes  (cost  57 )
0.067 * * [simplify]: iteration  1 :  284  enodes  (cost  50 )
0.071 * * [simplify]: iteration  2 :  688  enodes  (cost  50 )
0.086 * * [simplify]: iteration  3 :  2506  enodes  (cost  50 )
0.154 * * [simplify]: iteration  4 :  5001  enodes  (cost  50 )
0.155 * [simplify]: Simplified to:
   (exp (+ (* x x) 1.0))
  (log (+ (* x x) 1.0))
  (exp (+ (* x x) 1.0))
  (* (cbrt (+ (* x x) 1.0)) (cbrt (+ (* x x) 1.0)))
  (cbrt (+ (* x x) 1.0))
  (pow (+ (pow x 2) 1.0) 3)
  (sqrt (+ (* x x) 1.0))
  (sqrt (+ (* x x) 1.0))
  (+ (pow (* x x) 3) (pow 1.0 3))
  (- (* 1.0 1.0) (- (* (* x x) 1.0) (pow x 4)))
  (+ (neg (* 1.0 1.0)) (pow x 4))
  (- (* x x) 1.0)
  (+ (pow x 2) 1.0)
  (+ (pow x 2) 1.0)
  (+ (pow x 2) 1.0)
0.155 * * * [progress]: adding candidates to table
0.173 * * [progress]: iteration 2 / 4
0.173 * * * [progress]: picking best candidate
0.175 * * * * [pick]: Picked  #<alt (λ (x) (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- (* x x) 1.0)))>
0.175 * * * [progress]: localizing error
0.183 * * * [progress]: generating rewritten candidates
0.184 * * * * [progress]: [ 1 / 2 ] rewriting at (2)
0.197 * * * * [progress]: [ 2 / 2 ] rewriting at (2 2)
0.203 * * * [progress]: generating series expansions
0.203 * * * * [progress]: [ 1 / 2 ] generating series at (2)
0.204 * [approximate]: Taking taylor expansion of (/ (- (pow x 4) 1.0) (- (pow x 2) 1.0)) in (x) around 0
0.204 * [taylor]: Taking taylor expansion of (/ (- (pow x 4) 1.0) (- (pow x 2) 1.0)) in x
0.204 * [taylor]: Taking taylor expansion of (- (pow x 4) 1.0) in x
0.204 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.204 * [taylor]: Taking taylor expansion of x in x
0.204 * [taylor]: Taking taylor expansion of 1.0 in x
0.204 * [taylor]: Taking taylor expansion of (- (pow x 2) 1.0) in x
0.204 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.204 * [taylor]: Taking taylor expansion of x in x
0.204 * [taylor]: Taking taylor expansion of 1.0 in x
0.207 * [taylor]: Taking taylor expansion of (/ (- (pow x 4) 1.0) (- (pow x 2) 1.0)) in x
0.207 * [taylor]: Taking taylor expansion of (- (pow x 4) 1.0) in x
0.207 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.207 * [taylor]: Taking taylor expansion of x in x
0.207 * [taylor]: Taking taylor expansion of 1.0 in x
0.207 * [taylor]: Taking taylor expansion of (- (pow x 2) 1.0) in x
0.207 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.207 * [taylor]: Taking taylor expansion of x in x
0.207 * [taylor]: Taking taylor expansion of 1.0 in x
0.236 * [approximate]: Taking taylor expansion of (/ (- (/ 1 (pow x 4)) 1.0) (- (/ 1 (pow x 2)) 1.0)) in (x) around 0
0.237 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow x 4)) 1.0) (- (/ 1 (pow x 2)) 1.0)) in x
0.237 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) 1.0) in x
0.237 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.237 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.237 * [taylor]: Taking taylor expansion of x in x
0.237 * [taylor]: Taking taylor expansion of 1.0 in x
0.237 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) 1.0) in x
0.237 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.237 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.237 * [taylor]: Taking taylor expansion of x in x
0.238 * [taylor]: Taking taylor expansion of 1.0 in x
0.239 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow x 4)) 1.0) (- (/ 1 (pow x 2)) 1.0)) in x
0.239 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) 1.0) in x
0.239 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.239 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.239 * [taylor]: Taking taylor expansion of x in x
0.239 * [taylor]: Taking taylor expansion of 1.0 in x
0.240 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) 1.0) in x
0.240 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.240 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.240 * [taylor]: Taking taylor expansion of x in x
0.240 * [taylor]: Taking taylor expansion of 1.0 in x
0.286 * [approximate]: Taking taylor expansion of (/ (- (/ 1 (pow x 4)) 1.0) (- (/ 1 (pow x 2)) 1.0)) in (x) around 0
0.286 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow x 4)) 1.0) (- (/ 1 (pow x 2)) 1.0)) in x
0.286 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) 1.0) in x
0.287 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.287 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.287 * [taylor]: Taking taylor expansion of x in x
0.287 * [taylor]: Taking taylor expansion of 1.0 in x
0.287 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) 1.0) in x
0.287 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.287 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.287 * [taylor]: Taking taylor expansion of x in x
0.288 * [taylor]: Taking taylor expansion of 1.0 in x
0.289 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow x 4)) 1.0) (- (/ 1 (pow x 2)) 1.0)) in x
0.289 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) 1.0) in x
0.289 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.289 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.289 * [taylor]: Taking taylor expansion of x in x
0.289 * [taylor]: Taking taylor expansion of 1.0 in x
0.289 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) 1.0) in x
0.289 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.289 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.289 * [taylor]: Taking taylor expansion of x in x
0.290 * [taylor]: Taking taylor expansion of 1.0 in x
0.332 * * * * [progress]: [ 2 / 2 ] generating series at (2 2)
0.332 * [approximate]: Taking taylor expansion of (- (pow x 2) 1.0) in (x) around 0
0.333 * [taylor]: Taking taylor expansion of (- (pow x 2) 1.0) in x
0.333 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.333 * [taylor]: Taking taylor expansion of x in x
0.333 * [taylor]: Taking taylor expansion of 1.0 in x
0.333 * [taylor]: Taking taylor expansion of (- (pow x 2) 1.0) in x
0.333 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.333 * [taylor]: Taking taylor expansion of x in x
0.333 * [taylor]: Taking taylor expansion of 1.0 in x
0.341 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) 1.0) in (x) around 0
0.341 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) 1.0) in x
0.342 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.342 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.342 * [taylor]: Taking taylor expansion of x in x
0.342 * [taylor]: Taking taylor expansion of 1.0 in x
0.342 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) 1.0) in x
0.342 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.342 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.342 * [taylor]: Taking taylor expansion of x in x
0.343 * [taylor]: Taking taylor expansion of 1.0 in x
0.362 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) 1.0) in (x) around 0
0.362 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) 1.0) in x
0.362 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.362 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.362 * [taylor]: Taking taylor expansion of x in x
0.362 * [taylor]: Taking taylor expansion of 1.0 in x
0.362 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) 1.0) in x
0.362 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.362 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.362 * [taylor]: Taking taylor expansion of x in x
0.363 * [taylor]: Taking taylor expansion of 1.0 in x
0.377 * * * [progress]: simplifying candidates
0.378 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (log (+ (neg (* 1.0 1.0)) (pow x 4))) (log (- (* x x) 1.0)))
  (log (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- (* x x) 1.0)))
  (exp (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- (* x x) 1.0)))
  (/ (* (* (+ (neg (* 1.0 1.0)) (pow x 4)) (+ (neg (* 1.0 1.0)) (pow x 4))) (+ (neg (* 1.0 1.0)) (pow x 4))) (* (* (- (* x x) 1.0) (- (* x x) 1.0)) (- (* x x) 1.0)))
  (* (cbrt (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- (* x x) 1.0))) (cbrt (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- (* x x) 1.0))))
  (cbrt (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- (* x x) 1.0)))
  (* (* (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- (* x x) 1.0)) (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- (* x x) 1.0))) (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- (* x x) 1.0)))
  (sqrt (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- (* x x) 1.0)))
  (sqrt (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- (* x x) 1.0)))
  (neg (+ (neg (* 1.0 1.0)) (pow x 4)))
  (neg (- (* x x) 1.0))
  (/ 0 (- (* x x) 1.0))
  (/ (- (* 1.0 1.0) (pow x 4)) (- (* x x) 1.0))
  (/ (* (cbrt (+ (neg (* 1.0 1.0)) (pow x 4))) (cbrt (+ (neg (* 1.0 1.0)) (pow x 4)))) (* (cbrt (- (* x x) 1.0)) (cbrt (- (* x x) 1.0))))
  (/ (cbrt (+ (neg (* 1.0 1.0)) (pow x 4))) (cbrt (- (* x x) 1.0)))
  (/ (* (cbrt (+ (neg (* 1.0 1.0)) (pow x 4))) (cbrt (+ (neg (* 1.0 1.0)) (pow x 4)))) (sqrt (- (* x x) 1.0)))
  (/ (cbrt (+ (neg (* 1.0 1.0)) (pow x 4))) (sqrt (- (* x x) 1.0)))
  (/ (* (cbrt (+ (neg (* 1.0 1.0)) (pow x 4))) (cbrt (+ (neg (* 1.0 1.0)) (pow x 4)))) 1)
  (/ (cbrt (+ (neg (* 1.0 1.0)) (pow x 4))) (- (* x x) 1.0))
  (/ (* (cbrt (+ (neg (* 1.0 1.0)) (pow x 4))) (cbrt (+ (neg (* 1.0 1.0)) (pow x 4)))) (+ x (sqrt 1.0)))
  (/ (cbrt (+ (neg (* 1.0 1.0)) (pow x 4))) (- x (sqrt 1.0)))
  (/ (sqrt (+ (neg (* 1.0 1.0)) (pow x 4))) (* (cbrt (- (* x x) 1.0)) (cbrt (- (* x x) 1.0))))
  (/ (sqrt (+ (neg (* 1.0 1.0)) (pow x 4))) (cbrt (- (* x x) 1.0)))
  (/ (sqrt (+ (neg (* 1.0 1.0)) (pow x 4))) (sqrt (- (* x x) 1.0)))
  (/ (sqrt (+ (neg (* 1.0 1.0)) (pow x 4))) (sqrt (- (* x x) 1.0)))
  (/ (sqrt (+ (neg (* 1.0 1.0)) (pow x 4))) 1)
  (/ (sqrt (+ (neg (* 1.0 1.0)) (pow x 4))) (- (* x x) 1.0))
  (/ (sqrt (+ (neg (* 1.0 1.0)) (pow x 4))) (+ x (sqrt 1.0)))
  (/ (sqrt (+ (neg (* 1.0 1.0)) (pow x 4))) (- x (sqrt 1.0)))
  (/ 1 (* (cbrt (- (* x x) 1.0)) (cbrt (- (* x x) 1.0))))
  (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (cbrt (- (* x x) 1.0)))
  (/ 1 (sqrt (- (* x x) 1.0)))
  (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (sqrt (- (* x x) 1.0)))
  (/ 1 1)
  (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- (* x x) 1.0))
  (/ 1 (+ x (sqrt 1.0)))
  (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- x (sqrt 1.0)))
  (/ 1 (* (cbrt (- (* x x) 1.0)) (cbrt (- (* x x) 1.0))))
  (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (cbrt (- (* x x) 1.0)))
  (/ 1 (sqrt (- (* x x) 1.0)))
  (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (sqrt (- (* x x) 1.0)))
  (/ 1 1)
  (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- (* x x) 1.0))
  (/ 1 (+ x (sqrt 1.0)))
  (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- x (sqrt 1.0)))
  (/ 1 (- (* x x) 1.0))
  (/ (- (* x x) 1.0) (+ (neg (* 1.0 1.0)) (pow x 4)))
  (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (* (cbrt (- (* x x) 1.0)) (cbrt (- (* x x) 1.0))))
  (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (sqrt (- (* x x) 1.0)))
  (/ (+ (neg (* 1.0 1.0)) (pow x 4)) 1)
  (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (+ x (sqrt 1.0)))
  (/ (- (* x x) 1.0) (cbrt (+ (neg (* 1.0 1.0)) (pow x 4))))
  (/ (- (* x x) 1.0) (sqrt (+ (neg (* 1.0 1.0)) (pow x 4))))
  (/ (- (* x x) 1.0) (+ (neg (* 1.0 1.0)) (pow x 4)))
  (/ (- (* x x) 1.0) (+ (neg (* 1.0 1.0)) (pow x 4)))
  (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- (pow (* x x) 3) (pow 1.0 3)))
  (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- (* (* x x) (* x x)) (* 1.0 1.0)))
  (* (- (* x x) 1.0) (+ (* (neg (* 1.0 1.0)) (neg (* 1.0 1.0))) (- (* (pow x 4) (pow x 4)) (* (neg (* 1.0 1.0)) (pow x 4)))))
  (* (- (* x x) 1.0) (- (neg (* 1.0 1.0)) (pow x 4)))
  (/ (exp (* x x)) (exp 1.0))
  (log (- (* x x) 1.0))
  (exp (- (* x x) 1.0))
  (* (cbrt (- (* x x) 1.0)) (cbrt (- (* x x) 1.0)))
  (cbrt (- (* x x) 1.0))
  (* (* (- (* x x) 1.0) (- (* x x) 1.0)) (- (* x x) 1.0))
  (sqrt (- (* x x) 1.0))
  (sqrt (- (* x x) 1.0))
  (- (pow (* x x) 3) (pow 1.0 3))
  (+ (* (* x x) (* x x)) (+ (* 1.0 1.0) (* (* x x) 1.0)))
  (neg 1.0)
  (- (* (* x x) (* x x)) (* 1.0 1.0))
  (+ (* x x) 1.0)
  (+ x (sqrt 1.0))
  (- x (sqrt 1.0))
  (neg 1.0)
  (+ (* 1.0 (pow x 2)) 1.0)
  (+ (pow x 2) 1.0)
  (+ (pow x 2) 1.0)
  (- (pow x 2) 1.0)
  (- (pow x 2) 1.0)
  (- (pow x 2) 1.0)
0.383 * * [simplify]: iteration  0 :  236  enodes  (cost  556 )
0.389 * * [simplify]: iteration  1 :  1051  enodes  (cost  507 )
0.413 * * [simplify]: iteration  2 :  5001  enodes  (cost  499 )
0.416 * [simplify]: Simplified to:
   (log (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- (* x x) 1.0)))
  (log (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- (* x x) 1.0)))
  (exp (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- (* x x) 1.0)))
  (pow (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- (* x x) 1.0)) 3)
  (* (cbrt (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- (* x x) 1.0))) (cbrt (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- (* x x) 1.0))))
  (cbrt (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- (* x x) 1.0)))
  (pow (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- (* x x) 1.0)) 3)
  (sqrt (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- (* x x) 1.0)))
  (sqrt (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- (* x x) 1.0)))
  (- (* 1.0 1.0) (pow x 4))
  (neg (- (* x x) 1.0))
  0
  (/ (- (* 1.0 1.0) (pow x 4)) (- (* x x) 1.0))
  (/ (* (cbrt (+ (neg (* 1.0 1.0)) (pow x 4))) (cbrt (+ (neg (* 1.0 1.0)) (pow x 4)))) (* (cbrt (- (* x x) 1.0)) (cbrt (- (* x x) 1.0))))
  (/ (cbrt (+ (neg (* 1.0 1.0)) (pow x 4))) (cbrt (- (* x x) 1.0)))
  (/ (* (cbrt (+ (neg (* 1.0 1.0)) (pow x 4))) (cbrt (+ (neg (* 1.0 1.0)) (pow x 4)))) (sqrt (- (* x x) 1.0)))
  (/ (cbrt (+ (neg (* 1.0 1.0)) (pow x 4))) (sqrt (- (* x x) 1.0)))
  (* (cbrt (+ (neg (* 1.0 1.0)) (pow x 4))) (cbrt (+ (neg (* 1.0 1.0)) (pow x 4))))
  (/ (cbrt (+ (neg (* 1.0 1.0)) (pow x 4))) (- (* x x) 1.0))
  (/ (* (cbrt (+ (neg (* 1.0 1.0)) (pow x 4))) (cbrt (+ (neg (* 1.0 1.0)) (pow x 4)))) (+ x (sqrt 1.0)))
  (/ (cbrt (+ (neg (* 1.0 1.0)) (pow x 4))) (- x (sqrt 1.0)))
  (/ (sqrt (+ (neg (* 1.0 1.0)) (pow x 4))) (* (cbrt (- (* x x) 1.0)) (cbrt (- (* x x) 1.0))))
  (/ (sqrt (+ (neg (* 1.0 1.0)) (pow x 4))) (cbrt (- (* x x) 1.0)))
  (/ (sqrt (+ (neg (* 1.0 1.0)) (pow x 4))) (sqrt (- (* x x) 1.0)))
  (/ (sqrt (+ (neg (* 1.0 1.0)) (pow x 4))) (sqrt (- (* x x) 1.0)))
  (sqrt (+ (neg (* 1.0 1.0)) (pow x 4)))
  (/ (sqrt (+ (neg (* 1.0 1.0)) (pow x 4))) (- (* x x) 1.0))
  (/ (sqrt (+ (neg (* 1.0 1.0)) (pow x 4))) (+ x (sqrt 1.0)))
  (/ (sqrt (+ (neg (* 1.0 1.0)) (pow x 4))) (- x (sqrt 1.0)))
  (/ 1 (* (cbrt (- (* x x) 1.0)) (cbrt (- (* x x) 1.0))))
  (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (cbrt (- (* x x) 1.0)))
  (/ 1 (sqrt (- (* x x) 1.0)))
  (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (sqrt (- (* x x) 1.0)))
  1
  (/ (+ (pow x 2) 1.0) 1)
  (/ 1 (+ x (sqrt 1.0)))
  (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- x (sqrt 1.0)))
  (/ 1 (* (cbrt (- (* x x) 1.0)) (cbrt (- (* x x) 1.0))))
  (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (cbrt (- (* x x) 1.0)))
  (/ 1 (sqrt (- (* x x) 1.0)))
  (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (sqrt (- (* x x) 1.0)))
  1
  (/ (+ (pow x 2) 1.0) 1)
  (/ 1 (+ x (sqrt 1.0)))
  (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- x (sqrt 1.0)))
  (/ 1 (- (* x x) 1.0))
  (/ (- (* x x) 1.0) (+ (neg (* 1.0 1.0)) (pow x 4)))
  (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (* (cbrt (- (* x x) 1.0)) (cbrt (- (* x x) 1.0))))
  (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (sqrt (- (* x x) 1.0)))
  (+ (neg (* 1.0 1.0)) (pow x 4))
  (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (+ x (sqrt 1.0)))
  (/ (- (* x x) 1.0) (cbrt (+ (neg (* 1.0 1.0)) (pow x 4))))
  (/ (- (* x x) 1.0) (sqrt (+ (neg (* 1.0 1.0)) (pow x 4))))
  (/ (- (* x x) 1.0) (+ (neg (* 1.0 1.0)) (pow x 4)))
  (/ (- (* x x) 1.0) (+ (neg (* 1.0 1.0)) (pow x 4)))
  (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- (pow (* x x) 3) (pow 1.0 3)))
  1
  (* (+ (+ (* (* 1.0 1.0) (* 1.0 1.0)) (pow x 8)) (* (* 1.0 1.0) (pow x 4))) (- (pow x 2) 1.0))
  (* (- (* x x) 1.0) (- (neg (* 1.0 1.0)) (pow x 4)))
  (exp (- (* x x) 1.0))
  (log (- (pow x 2) 1.0))
  (exp (- (* x x) 1.0))
  (* (cbrt (- (* x x) 1.0)) (cbrt (- (* x x) 1.0)))
  (cbrt (- (* x x) 1.0))
  (pow (- (pow x 2) 1.0) 3)
  (sqrt (- (* x x) 1.0))
  (sqrt (- (* x x) 1.0))
  (- (pow (* x x) 3) (pow 1.0 3))
  (+ (+ (pow x 4) (* (* x x) 1.0)) (* 1.0 1.0))
  (neg 1.0)
  (+ (neg (* 1.0 1.0)) (pow x 4))
  (+ (pow x 2) 1.0)
  (+ x (sqrt 1.0))
  (- x (sqrt 1.0))
  (neg 1.0)
  (+ (* 1.0 (pow x 2)) 1.0)
  (+ (pow x 2) 1.0)
  (+ (pow x 2) 1.0)
  (- (pow x 2) 1.0)
  (- (pow x 2) 1.0)
  (- (pow x 2) 1.0)
0.417 * * * [progress]: adding candidates to table
0.517 * [progress]: [Phase 3 of 3] Extracting.
0.517 * * [regime]: Finding splitpoints for: (#<alt (λ (x) (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- (* x x) 1.0)))> #<alt (λ (x) (+ (* x x) 1.0))>)
0.517 * * * [regime-changes]: Trying 3 branch expressions: ((* x x) (+ (* x x) 1.0) x)
0.517 * * * * [regimes]: Trying to branch on (* x x) from (#<alt (λ (x) (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- (* x x) 1.0)))> #<alt (λ (x) (+ (* x x) 1.0))>)
0.529 * * * * [regimes]: Trying to branch on (+ (* x x) 1.0) from (#<alt (λ (x) (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- (* x x) 1.0)))> #<alt (λ (x) (+ (* x x) 1.0))>)
0.538 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x) (/ (+ (neg (* 1.0 1.0)) (pow x 4)) (- (* x x) 1.0)))> #<alt (λ (x) (+ (* x x) 1.0))>)
0.547 * * * [regime]: Found split indices: #<option (#s(si 1 255))>
0.548 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ (* x x) 1.0)
0.548 * * [simplify]: iteration  0 :  5  enodes  (cost  2 )
0.549 * * [simplify]: iteration  1 :  5  enodes  (cost  2 )
0.549 * [simplify]: Simplified to:
   (+ (* x x) 1.0)
0.884 * [regime-testing]: Baseline error score: 0.0008751093886735842
0.884 * [regime-testing]: Oracle error score: 0.00025003125390673836
0.888 * [regime-testing]: End program error score: 0.0008751093886735842