8.132 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.010 * * * [progress]: [2/2] Setting up program.
0.011 * [progress]: [Phase 2 of 3] Improving.
0.012 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (* x x) 1.0)
0.014 * * [simplify]: iteration  0 :  6  enodes  (cost  2 )
0.015 * * [simplify]: iteration  1 :  7  enodes  (cost  2 )
0.016 * * [simplify]: iteration  2 :  7  enodes  (cost  2 )
0.016 * [simplify]: Simplified to:
   (- (* x x) 1.0)
0.016 * * [progress]: iteration 1 / 4
0.016 * * * [progress]: picking best candidate
0.017 * * * * [pick]: Picked  #<alt (λ (x) (- (* x x) 1.0))>
0.017 * * * [progress]: localizing error
0.020 * * * [progress]: generating rewritten candidates
0.020 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.024 * * * [progress]: generating series expansions
0.024 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.024 * [approximate]: Taking taylor expansion of (- (pow x 2) 1.0) in (x) around 0
0.024 * [taylor]: Taking taylor expansion of (- (pow x 2) 1.0) in x
0.024 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.024 * [taylor]: Taking taylor expansion of x in x
0.024 * [taylor]: Taking taylor expansion of 1.0 in x
0.024 * [taylor]: Taking taylor expansion of (- (pow x 2) 1.0) in x
0.024 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.024 * [taylor]: Taking taylor expansion of x in x
0.024 * [taylor]: Taking taylor expansion of 1.0 in x
0.033 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) 1.0) in (x) around 0
0.033 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) 1.0) in x
0.033 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.033 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.033 * [taylor]: Taking taylor expansion of x in x
0.034 * [taylor]: Taking taylor expansion of 1.0 in x
0.034 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) 1.0) in x
0.034 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.034 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.034 * [taylor]: Taking taylor expansion of x in x
0.034 * [taylor]: Taking taylor expansion of 1.0 in x
0.051 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) 1.0) in (x) around 0
0.051 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) 1.0) in x
0.051 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.052 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.052 * [taylor]: Taking taylor expansion of x in x
0.052 * [taylor]: Taking taylor expansion of 1.0 in x
0.052 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) 1.0) in x
0.052 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.052 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.052 * [taylor]: Taking taylor expansion of x in x
0.053 * [taylor]: Taking taylor expansion of 1.0 in x
0.067 * * * [progress]: simplifying candidates
0.067 * [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)))
  (- 1.0)
  (- (* (* x x) (* x x)) (* 1.0 1.0))
  (+ (* x x) 1.0)
  (+ x (sqrt 1.0))
  (- x (sqrt 1.0))
  (- 1.0)
  (- (pow x 2) 1.0)
  (- (pow x 2) 1.0)
  (- (pow x 2) 1.0)
0.070 * * [simplify]: iteration  0 :  73  enodes  (cost  63 )
0.072 * * [simplify]: iteration  1 :  216  enodes  (cost  56 )
0.076 * * [simplify]: iteration  2 :  535  enodes  (cost  56 )
0.087 * * [simplify]: iteration  3 :  1794  enodes  (cost  56 )
0.127 * * [simplify]: iteration  4 :  5001  enodes  (cost  56 )
0.128 * [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))
  (+ (+ (pow x 4) (* (* x x) 1.0)) (* 1.0 1.0))
  (- 0 1.0)
  (+ (- (* 1.0 1.0)) (pow x 4))
  (+ (* x x) 1.0)
  (+ x (sqrt 1.0))
  (- x (sqrt 1.0))
  (- 0 1.0)
  (- (pow x 2) 1.0)
  (- (pow x 2) 1.0)
  (- (pow x 2) 1.0)
0.128 * * * [progress]: adding candidates to table
0.147 * * [progress]: iteration 2 / 4
0.147 * * * [progress]: picking best candidate
0.149 * * * * [pick]: Picked  #<alt (λ (x) (/ (+ (- (* 1.0 1.0)) (pow x 4)) (+ (* x x) 1.0)))>
0.149 * * * [progress]: localizing error
0.157 * * * [progress]: generating rewritten candidates
0.157 * * * * [progress]: [ 1 / 3 ] rewriting at (2)
0.168 * * * * [progress]: [ 2 / 3 ] rewriting at (2 2)
0.172 * * * * [progress]: [ 3 / 3 ] rewriting at (2 1)
0.179 * * * [progress]: generating series expansions
0.179 * * * * [progress]: [ 1 / 3 ] generating series at (2)
0.180 * [approximate]: Taking taylor expansion of (/ (- (pow x 4) 1.0) (+ (pow x 2) 1.0)) in (x) around 0
0.180 * [taylor]: Taking taylor expansion of (/ (- (pow x 4) 1.0) (+ (pow x 2) 1.0)) in x
0.180 * [taylor]: Taking taylor expansion of (- (pow x 4) 1.0) in x
0.180 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.180 * [taylor]: Taking taylor expansion of x in x
0.180 * [taylor]: Taking taylor expansion of 1.0 in x
0.180 * [taylor]: Taking taylor expansion of (+ (pow x 2) 1.0) in x
0.180 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.180 * [taylor]: Taking taylor expansion of x in x
0.180 * [taylor]: Taking taylor expansion of 1.0 in x
0.182 * [taylor]: Taking taylor expansion of (/ (- (pow x 4) 1.0) (+ (pow x 2) 1.0)) in x
0.182 * [taylor]: Taking taylor expansion of (- (pow x 4) 1.0) in x
0.182 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.182 * [taylor]: Taking taylor expansion of x in x
0.182 * [taylor]: Taking taylor expansion of 1.0 in x
0.182 * [taylor]: Taking taylor expansion of (+ (pow x 2) 1.0) in x
0.182 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.182 * [taylor]: Taking taylor expansion of x in x
0.182 * [taylor]: Taking taylor expansion of 1.0 in x
0.211 * [approximate]: Taking taylor expansion of (/ (- (/ 1 (pow x 4)) 1.0) (+ (/ 1 (pow x 2)) 1.0)) in (x) around 0
0.211 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow x 4)) 1.0) (+ (/ 1 (pow x 2)) 1.0)) in x
0.211 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) 1.0) in x
0.211 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.211 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.211 * [taylor]: Taking taylor expansion of x in x
0.212 * [taylor]: Taking taylor expansion of 1.0 in x
0.212 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) 1.0) in x
0.212 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.212 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.212 * [taylor]: Taking taylor expansion of x in x
0.213 * [taylor]: Taking taylor expansion of 1.0 in x
0.213 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow x 4)) 1.0) (+ (/ 1 (pow x 2)) 1.0)) in x
0.213 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) 1.0) in x
0.213 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.213 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.213 * [taylor]: Taking taylor expansion of x in x
0.214 * [taylor]: Taking taylor expansion of 1.0 in x
0.214 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) 1.0) in x
0.214 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.214 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.214 * [taylor]: Taking taylor expansion of x in x
0.215 * [taylor]: Taking taylor expansion of 1.0 in x
0.255 * [approximate]: Taking taylor expansion of (/ (- (/ 1 (pow x 4)) 1.0) (+ (/ 1 (pow x 2)) 1.0)) in (x) around 0
0.255 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow x 4)) 1.0) (+ (/ 1 (pow x 2)) 1.0)) in x
0.255 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) 1.0) in x
0.255 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.255 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.255 * [taylor]: Taking taylor expansion of x in x
0.256 * [taylor]: Taking taylor expansion of 1.0 in x
0.256 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) 1.0) in x
0.256 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.256 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.256 * [taylor]: Taking taylor expansion of x in x
0.257 * [taylor]: Taking taylor expansion of 1.0 in x
0.258 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow x 4)) 1.0) (+ (/ 1 (pow x 2)) 1.0)) in x
0.258 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) 1.0) in x
0.258 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.258 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.258 * [taylor]: Taking taylor expansion of x in x
0.259 * [taylor]: Taking taylor expansion of 1.0 in x
0.259 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) 1.0) in x
0.259 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.259 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.259 * [taylor]: Taking taylor expansion of x in x
0.259 * [taylor]: Taking taylor expansion of 1.0 in x
0.302 * * * * [progress]: [ 2 / 3 ] generating series at (2 2)
0.302 * [approximate]: Taking taylor expansion of (+ (pow x 2) 1.0) in (x) around 0
0.302 * [taylor]: Taking taylor expansion of (+ (pow x 2) 1.0) in x
0.302 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.302 * [taylor]: Taking taylor expansion of x in x
0.302 * [taylor]: Taking taylor expansion of 1.0 in x
0.302 * [taylor]: Taking taylor expansion of (+ (pow x 2) 1.0) in x
0.302 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.302 * [taylor]: Taking taylor expansion of x in x
0.303 * [taylor]: Taking taylor expansion of 1.0 in x
0.309 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) 1.0) in (x) around 0
0.309 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) 1.0) in x
0.309 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.309 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.309 * [taylor]: Taking taylor expansion of x in x
0.309 * [taylor]: Taking taylor expansion of 1.0 in x
0.309 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) 1.0) in x
0.309 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.309 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.309 * [taylor]: Taking taylor expansion of x in x
0.310 * [taylor]: Taking taylor expansion of 1.0 in x
0.321 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) 1.0) in (x) around 0
0.321 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) 1.0) in x
0.321 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.321 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.321 * [taylor]: Taking taylor expansion of x in x
0.322 * [taylor]: Taking taylor expansion of 1.0 in x
0.322 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) 1.0) in x
0.322 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.322 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.322 * [taylor]: Taking taylor expansion of x in x
0.322 * [taylor]: Taking taylor expansion of 1.0 in x
0.334 * * * * [progress]: [ 3 / 3 ] generating series at (2 1)
0.334 * [approximate]: Taking taylor expansion of (- (pow x 4) 1.0) in (x) around 0
0.334 * [taylor]: Taking taylor expansion of (- (pow x 4) 1.0) in x
0.334 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.334 * [taylor]: Taking taylor expansion of x in x
0.334 * [taylor]: Taking taylor expansion of 1.0 in x
0.334 * [taylor]: Taking taylor expansion of (- (pow x 4) 1.0) in x
0.334 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.334 * [taylor]: Taking taylor expansion of x in x
0.334 * [taylor]: Taking taylor expansion of 1.0 in x
0.351 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 4)) 1.0) in (x) around 0
0.351 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) 1.0) in x
0.351 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.351 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.351 * [taylor]: Taking taylor expansion of x in x
0.352 * [taylor]: Taking taylor expansion of 1.0 in x
0.352 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) 1.0) in x
0.352 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.352 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.352 * [taylor]: Taking taylor expansion of x in x
0.352 * [taylor]: Taking taylor expansion of 1.0 in x
0.377 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 4)) 1.0) in (x) around 0
0.377 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) 1.0) in x
0.377 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.377 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.377 * [taylor]: Taking taylor expansion of x in x
0.378 * [taylor]: Taking taylor expansion of 1.0 in x
0.378 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) 1.0) in x
0.378 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.378 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.378 * [taylor]: Taking taylor expansion of x in x
0.379 * [taylor]: Taking taylor expansion of 1.0 in x
0.403 * * * [progress]: simplifying candidates
0.404 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (log (+ (- (* 1.0 1.0)) (pow x 4))) (log (+ (* x x) 1.0)))
  (log (/ (+ (- (* 1.0 1.0)) (pow x 4)) (+ (* x x) 1.0)))
  (exp (/ (+ (- (* 1.0 1.0)) (pow x 4)) (+ (* x x) 1.0)))
  (/ (* (* (+ (- (* 1.0 1.0)) (pow x 4)) (+ (- (* 1.0 1.0)) (pow x 4))) (+ (- (* 1.0 1.0)) (pow x 4))) (* (* (+ (* x x) 1.0) (+ (* x x) 1.0)) (+ (* x x) 1.0)))
  (* (cbrt (/ (+ (- (* 1.0 1.0)) (pow x 4)) (+ (* x x) 1.0))) (cbrt (/ (+ (- (* 1.0 1.0)) (pow x 4)) (+ (* x x) 1.0))))
  (cbrt (/ (+ (- (* 1.0 1.0)) (pow x 4)) (+ (* x x) 1.0)))
  (* (* (/ (+ (- (* 1.0 1.0)) (pow x 4)) (+ (* x x) 1.0)) (/ (+ (- (* 1.0 1.0)) (pow x 4)) (+ (* x x) 1.0))) (/ (+ (- (* 1.0 1.0)) (pow x 4)) (+ (* x x) 1.0)))
  (sqrt (/ (+ (- (* 1.0 1.0)) (pow x 4)) (+ (* x x) 1.0)))
  (sqrt (/ (+ (- (* 1.0 1.0)) (pow x 4)) (+ (* x x) 1.0)))
  (- (+ (- (* 1.0 1.0)) (pow x 4)))
  (- (+ (* x x) 1.0))
  (/ 0 (+ (* x x) 1.0))
  (/ (- (* 1.0 1.0) (pow x 4)) (+ (* x x) 1.0))
  (/ (* (cbrt (+ (- (* 1.0 1.0)) (pow x 4))) (cbrt (+ (- (* 1.0 1.0)) (pow x 4)))) (* (cbrt (+ (* x x) 1.0)) (cbrt (+ (* x x) 1.0))))
  (/ (cbrt (+ (- (* 1.0 1.0)) (pow x 4))) (cbrt (+ (* x x) 1.0)))
  (/ (* (cbrt (+ (- (* 1.0 1.0)) (pow x 4))) (cbrt (+ (- (* 1.0 1.0)) (pow x 4)))) (sqrt (+ (* x x) 1.0)))
  (/ (cbrt (+ (- (* 1.0 1.0)) (pow x 4))) (sqrt (+ (* x x) 1.0)))
  (/ (* (cbrt (+ (- (* 1.0 1.0)) (pow x 4))) (cbrt (+ (- (* 1.0 1.0)) (pow x 4)))) 1)
  (/ (cbrt (+ (- (* 1.0 1.0)) (pow x 4))) (+ (* x x) 1.0))
  (/ (sqrt (+ (- (* 1.0 1.0)) (pow x 4))) (* (cbrt (+ (* x x) 1.0)) (cbrt (+ (* x x) 1.0))))
  (/ (sqrt (+ (- (* 1.0 1.0)) (pow x 4))) (cbrt (+ (* x x) 1.0)))
  (/ (sqrt (+ (- (* 1.0 1.0)) (pow x 4))) (sqrt (+ (* x x) 1.0)))
  (/ (sqrt (+ (- (* 1.0 1.0)) (pow x 4))) (sqrt (+ (* x x) 1.0)))
  (/ (sqrt (+ (- (* 1.0 1.0)) (pow x 4))) 1)
  (/ (sqrt (+ (- (* 1.0 1.0)) (pow x 4))) (+ (* x x) 1.0))
  (/ 1 (* (cbrt (+ (* x x) 1.0)) (cbrt (+ (* x x) 1.0))))
  (/ (+ (- (* 1.0 1.0)) (pow x 4)) (cbrt (+ (* x x) 1.0)))
  (/ 1 (sqrt (+ (* x x) 1.0)))
  (/ (+ (- (* 1.0 1.0)) (pow x 4)) (sqrt (+ (* x x) 1.0)))
  (/ 1 1)
  (/ (+ (- (* 1.0 1.0)) (pow x 4)) (+ (* x x) 1.0))
  (/ 1 (* (cbrt (+ (* x x) 1.0)) (cbrt (+ (* x x) 1.0))))
  (/ (+ (- (* 1.0 1.0)) (pow x 4)) (cbrt (+ (* x x) 1.0)))
  (/ 1 (sqrt (+ (* x x) 1.0)))
  (/ (+ (- (* 1.0 1.0)) (pow x 4)) (sqrt (+ (* x x) 1.0)))
  (/ 1 1)
  (/ (+ (- (* 1.0 1.0)) (pow x 4)) (+ (* x x) 1.0))
  (/ 1 (+ (* x x) 1.0))
  (/ (+ (* x x) 1.0) (+ (- (* 1.0 1.0)) (pow x 4)))
  (/ (+ (- (* 1.0 1.0)) (pow x 4)) (* (cbrt (+ (* x x) 1.0)) (cbrt (+ (* x x) 1.0))))
  (/ (+ (- (* 1.0 1.0)) (pow x 4)) (sqrt (+ (* x x) 1.0)))
  (/ (+ (- (* 1.0 1.0)) (pow x 4)) 1)
  (/ (+ (* x x) 1.0) (cbrt (+ (- (* 1.0 1.0)) (pow x 4))))
  (/ (+ (* x x) 1.0) (sqrt (+ (- (* 1.0 1.0)) (pow x 4))))
  (/ (+ (* x x) 1.0) (+ (- (* 1.0 1.0)) (pow x 4)))
  (/ (+ (* x x) 1.0) (+ (- (* 1.0 1.0)) (pow x 4)))
  (/ (+ (- (* 1.0 1.0)) (pow x 4)) (+ (pow (* x x) 3) (pow 1.0 3)))
  (/ (+ (- (* 1.0 1.0)) (pow x 4)) (- (* (* x x) (* x x)) (* 1.0 1.0)))
  (* (+ (* x x) 1.0) (+ (* (- (* 1.0 1.0)) (- (* 1.0 1.0))) (- (* (pow x 4) (pow x 4)) (* (- (* 1.0 1.0)) (pow x 4)))))
  (* (+ (* x x) 1.0) (- (- (* 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)))
  (- (* (* x x) (* x x)) (* 1.0 1.0))
  (- (* x x) 1.0)
  (* (/ 1 (exp (* 1.0 1.0))) (exp (pow x 4)))
  (* (exp (- (* 1.0 1.0))) (exp (pow x 4)))
  (log (+ (- (* 1.0 1.0)) (pow x 4)))
  (exp (+ (- (* 1.0 1.0)) (pow x 4)))
  (* (cbrt (+ (- (* 1.0 1.0)) (pow x 4))) (cbrt (+ (- (* 1.0 1.0)) (pow x 4))))
  (cbrt (+ (- (* 1.0 1.0)) (pow x 4)))
  (* (* (+ (- (* 1.0 1.0)) (pow x 4)) (+ (- (* 1.0 1.0)) (pow x 4))) (+ (- (* 1.0 1.0)) (pow x 4)))
  (sqrt (+ (- (* 1.0 1.0)) (pow x 4)))
  (sqrt (+ (- (* 1.0 1.0)) (pow x 4)))
  (+ (pow (- (* 1.0 1.0)) 3) (pow (pow x 4) 3))
  (+ (* (- (* 1.0 1.0)) (- (* 1.0 1.0))) (- (* (pow x 4) (pow x 4)) (* (- (* 1.0 1.0)) (pow x 4))))
  (- (* (- (* 1.0 1.0)) (- (* 1.0 1.0))) (* (pow x 4) (pow x 4)))
  (- (- (* 1.0 1.0)) (pow x 4))
  (+ (- (* 1.0 1.0)) (pow x 4))
  (- (* 1.0 1.0) (pow x 4))
  (- (* 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)
  (- (pow x 4) 1.0)
  (- (pow x 4) 1.0)
  (- (pow x 4) 1.0)
0.409 * * [simplify]: iteration  0 :  260  enodes  (cost  584 )
0.415 * * [simplify]: iteration  1 :  1199  enodes  (cost  523 )
0.439 * * [simplify]: iteration  2 :  5001  enodes  (cost  503 )
0.442 * [simplify]: Simplified to:
   (log (/ (+ (- (* 1.0 1.0)) (pow x 4)) (+ (* x x) 1.0)))
  (log (/ (+ (- (* 1.0 1.0)) (pow x 4)) (+ (* x x) 1.0)))
  (exp (/ (+ (- (* 1.0 1.0)) (pow x 4)) (+ (* x x) 1.0)))
  (pow (/ (+ (- (* 1.0 1.0)) (pow x 4)) (+ (* x x) 1.0)) 3)
  (* (cbrt (/ (+ (- (* 1.0 1.0)) (pow x 4)) (+ (* x x) 1.0))) (cbrt (/ (+ (- (* 1.0 1.0)) (pow x 4)) (+ (* x x) 1.0))))
  (cbrt (/ (+ (- (* 1.0 1.0)) (pow x 4)) (+ (* x x) 1.0)))
  (pow (/ (+ (- (* 1.0 1.0)) (pow x 4)) (+ (* x x) 1.0)) 3)
  (sqrt (/ (+ (- (* 1.0 1.0)) (pow x 4)) (+ (* x x) 1.0)))
  (sqrt (/ (+ (- (* 1.0 1.0)) (pow x 4)) (+ (* x x) 1.0)))
  (- (* 1.0 1.0) (pow x 4))
  (- (+ (* x x) 1.0))
  0
  (/ (- (* 1.0 1.0) (pow x 4)) (+ (* x x) 1.0))
  (/ (* (cbrt (+ (- (* 1.0 1.0)) (pow x 4))) (cbrt (+ (- (* 1.0 1.0)) (pow x 4)))) (* (cbrt (+ (* x x) 1.0)) (cbrt (+ (* x x) 1.0))))
  (/ (cbrt (+ (- (* 1.0 1.0)) (pow x 4))) (cbrt (+ (* x x) 1.0)))
  (/ (* (cbrt (+ (- (* 1.0 1.0)) (pow x 4))) (cbrt (+ (- (* 1.0 1.0)) (pow x 4)))) (sqrt (+ (* x x) 1.0)))
  (/ (cbrt (+ (- (* 1.0 1.0)) (pow x 4))) (sqrt (+ (* x x) 1.0)))
  (* (cbrt (+ (- (* 1.0 1.0)) (pow x 4))) (cbrt (+ (- (* 1.0 1.0)) (pow x 4))))
  (/ (cbrt (+ (- (* 1.0 1.0)) (pow x 4))) (+ (* x x) 1.0))
  (/ (sqrt (+ (- (* 1.0 1.0)) (pow x 4))) (* (cbrt (+ (* x x) 1.0)) (cbrt (+ (* x x) 1.0))))
  (/ (sqrt (+ (- (* 1.0 1.0)) (pow x 4))) (cbrt (+ (* x x) 1.0)))
  (/ (sqrt (+ (- (* 1.0 1.0)) (pow x 4))) (sqrt (+ (* x x) 1.0)))
  (/ (sqrt (+ (- (* 1.0 1.0)) (pow x 4))) (sqrt (+ (* x x) 1.0)))
  (sqrt (+ (- (* 1.0 1.0)) (pow x 4)))
  (/ (sqrt (+ (- (* 1.0 1.0)) (pow x 4))) (+ (* x x) 1.0))
  (/ 1 (* (cbrt (+ (* x x) 1.0)) (cbrt (+ (* x x) 1.0))))
  (/ (+ (- (* 1.0 1.0)) (pow x 4)) (cbrt (+ (* x x) 1.0)))
  (/ 1 (sqrt (+ (* x x) 1.0)))
  (/ (+ (- (* 1.0 1.0)) (pow x 4)) (sqrt (+ (* x x) 1.0)))
  1
  (/ (+ (- (* 1.0 1.0)) (pow x 4)) (+ (* x x) 1.0))
  (/ 1 (* (cbrt (+ (* x x) 1.0)) (cbrt (+ (* x x) 1.0))))
  (/ (+ (- (* 1.0 1.0)) (pow x 4)) (cbrt (+ (* x x) 1.0)))
  (/ 1 (sqrt (+ (* x x) 1.0)))
  (/ (+ (- (* 1.0 1.0)) (pow x 4)) (sqrt (+ (* x x) 1.0)))
  1
  (/ (+ (- (* 1.0 1.0)) (pow x 4)) (+ (* x x) 1.0))
  (/ 1 (+ (* x x) 1.0))
  (/ 1 (- (pow x 2) 1.0))
  (/ (+ (- (* 1.0 1.0)) (pow x 4)) (* (cbrt (+ (* x x) 1.0)) (cbrt (+ (* x x) 1.0))))
  (/ (+ (- (* 1.0 1.0)) (pow x 4)) (sqrt (+ (* x x) 1.0)))
  (- (pow x 4) (* 1.0 1.0))
  (/ (+ (* x x) 1.0) (cbrt (+ (- (* 1.0 1.0)) (pow x 4))))
  (/ (+ (* x x) 1.0) (sqrt (+ (- (* 1.0 1.0)) (pow x 4))))
  (/ 1 (- (pow x 2) 1.0))
  (/ 1 (- (pow x 2) 1.0))
  (/ (+ (- (* 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) (- (- (* 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))
  (- (* 1.0 1.0) (- (* (* x x) 1.0) (pow x 4)))
  (- (pow x 4) (* 1.0 1.0))
  (- (pow x 2) 1.0)
  (exp (- (pow x 4) (* 1.0 1.0)))
  (exp (- (pow x 4) (* 1.0 1.0)))
  (log (+ (- (* 1.0 1.0)) (pow x 4)))
  (exp (- (pow x 4) (* 1.0 1.0)))
  (* (cbrt (+ (- (* 1.0 1.0)) (pow x 4))) (cbrt (+ (- (* 1.0 1.0)) (pow x 4))))
  (cbrt (+ (- (* 1.0 1.0)) (pow x 4)))
  (pow (+ (- (* 1.0 1.0)) (pow x 4)) 3)
  (sqrt (+ (- (* 1.0 1.0)) (pow x 4)))
  (sqrt (+ (- (* 1.0 1.0)) (pow x 4)))
  (- (pow (pow x 4) 3) (pow (* 1.0 1.0) 3))
  (+ (+ (pow 1.0 4) (* (* 1.0 1.0) (pow x 4))) (pow x 8))
  (+ (- (pow x 8)) (* (pow 1.0 3) 1.0))
  (- (- (* 1.0 1.0)) (pow x 4))
  (- (pow x 4) (* 1.0 1.0))
  (- (* 1.0 1.0) (pow x 4))
  (- (* 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)
  (- (pow x 4) 1.0)
  (- (pow x 4) 1.0)
  (- (pow x 4) 1.0)
0.443 * * * [progress]: adding candidates to table
0.585 * [progress]: [Phase 3 of 3] Extracting.
0.585 * * [regime]: Finding splitpoints for: (#<alt (λ (x) (- (* x x) 1.0))> #<alt (λ (x) (/ (+ (- (* 1.0 1.0)) (pow x 4)) (+ (* x x) 1.0)))>)
0.586 * * * [regime-changes]: Trying 3 branch expressions: ((* x x) (- (* x x) 1.0) x)
0.586 * * * * [regimes]: Trying to branch on (* x x) from (#<alt (λ (x) (- (* x x) 1.0))> #<alt (λ (x) (/ (+ (- (* 1.0 1.0)) (pow x 4)) (+ (* x x) 1.0)))>)
0.594 * * * * [regimes]: Trying to branch on (- (* x x) 1.0) from (#<alt (λ (x) (- (* x x) 1.0))> #<alt (λ (x) (/ (+ (- (* 1.0 1.0)) (pow x 4)) (+ (* x x) 1.0)))>)
0.604 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x) (- (* x x) 1.0))> #<alt (λ (x) (/ (+ (- (* 1.0 1.0)) (pow x 4)) (+ (* x x) 1.0)))>)
0.613 * * * [regime]: Found split indices: #<option (#s(si 0 255))>
0.613 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (* x x) 1.0)
0.614 * * [simplify]: iteration  0 :  4  enodes  (cost  2 )
0.614 * [simplify]: Simplified to:
   (- (* x x) 1.0)
0.939 * [regime-testing]: Baseline error score: 0.0015877534339468799
0.940 * [regime-testing]: Oracle error score: 0.000976041370428504
0.940 * [regime-testing]: End program error score: 0.0015877534339468799