8.982 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.011 * * * [progress]: [2/2] Setting up program.
0.012 * [progress]: [Phase 2 of 3] Improving.
0.012 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (* (* x x) 2.0) 1.0)
0.014 * * [simplify]: iteration  0 :  12  enodes  (cost  3 )
0.016 * * [simplify]: iteration  1 :  18  enodes  (cost  3 )
0.017 * * [simplify]: iteration  2 :  19  enodes  (cost  3 )
0.018 * * [simplify]: iteration  3 :  19  enodes  (cost  3 )
0.018 * [simplify]: Simplified to:
   (- (* (* x x) 2.0) 1.0)
0.019 * * [progress]: iteration 1 / 4
0.019 * * * [progress]: picking best candidate
0.020 * * * * [pick]: Picked  #<alt (λ (x) (- (* (* x x) 2.0) 1.0))>
0.020 * * * [progress]: localizing error
0.024 * * * [progress]: generating rewritten candidates
0.024 * * * * [progress]: [ 1 / 2 ] rewriting at (2 1)
0.031 * * * * [progress]: [ 2 / 2 ] rewriting at (2)
0.040 * * * [progress]: generating series expansions
0.040 * * * * [progress]: [ 1 / 2 ] generating series at (2 1)
0.040 * [approximate]: Taking taylor expansion of (* 2.0 (pow x 2)) in (x) around 0
0.040 * [taylor]: Taking taylor expansion of (* 2.0 (pow x 2)) in x
0.040 * [taylor]: Taking taylor expansion of 2.0 in x
0.040 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.040 * [taylor]: Taking taylor expansion of x in x
0.040 * [taylor]: Taking taylor expansion of (* 2.0 (pow x 2)) in x
0.040 * [taylor]: Taking taylor expansion of 2.0 in x
0.040 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.040 * [taylor]: Taking taylor expansion of x in x
0.048 * [approximate]: Taking taylor expansion of (/ 2.0 (pow x 2)) in (x) around 0
0.048 * [taylor]: Taking taylor expansion of (/ 2.0 (pow x 2)) in x
0.048 * [taylor]: Taking taylor expansion of 2.0 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 (/ 2.0 (pow x 2)) in x
0.049 * [taylor]: Taking taylor expansion of 2.0 in x
0.049 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.049 * [taylor]: Taking taylor expansion of x in x
0.056 * [approximate]: Taking taylor expansion of (/ 2.0 (pow x 2)) in (x) around 0
0.056 * [taylor]: Taking taylor expansion of (/ 2.0 (pow x 2)) in x
0.056 * [taylor]: Taking taylor expansion of 2.0 in x
0.056 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.056 * [taylor]: Taking taylor expansion of x in x
0.056 * [taylor]: Taking taylor expansion of (/ 2.0 (pow x 2)) in x
0.056 * [taylor]: Taking taylor expansion of 2.0 in x
0.057 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.057 * [taylor]: Taking taylor expansion of x in x
0.064 * * * * [progress]: [ 2 / 2 ] generating series at (2)
0.064 * [approximate]: Taking taylor expansion of (- (* 2.0 (pow x 2)) 1.0) in (x) around 0
0.064 * [taylor]: Taking taylor expansion of (- (* 2.0 (pow x 2)) 1.0) in x
0.064 * [taylor]: Taking taylor expansion of (* 2.0 (pow x 2)) in x
0.064 * [taylor]: Taking taylor expansion of 2.0 in x
0.064 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.064 * [taylor]: Taking taylor expansion of x in x
0.064 * [taylor]: Taking taylor expansion of 1.0 in x
0.064 * [taylor]: Taking taylor expansion of (- (* 2.0 (pow x 2)) 1.0) in x
0.064 * [taylor]: Taking taylor expansion of (* 2.0 (pow x 2)) in x
0.064 * [taylor]: Taking taylor expansion of 2.0 in x
0.064 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.064 * [taylor]: Taking taylor expansion of x in x
0.064 * [taylor]: Taking taylor expansion of 1.0 in x
0.077 * [approximate]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow x 2))) 1.0) in (x) around 0
0.077 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow x 2))) 1.0) in x
0.077 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow x 2))) in x
0.077 * [taylor]: Taking taylor expansion of 2.0 in x
0.077 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.077 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.077 * [taylor]: Taking taylor expansion of x in x
0.077 * [taylor]: Taking taylor expansion of 1.0 in x
0.077 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow x 2))) 1.0) in x
0.077 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow x 2))) in x
0.077 * [taylor]: Taking taylor expansion of 2.0 in x
0.078 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.078 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.078 * [taylor]: Taking taylor expansion of x in x
0.078 * [taylor]: Taking taylor expansion of 1.0 in x
0.100 * [approximate]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow x 2))) 1.0) in (x) around 0
0.100 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow x 2))) 1.0) in x
0.100 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow x 2))) in x
0.100 * [taylor]: Taking taylor expansion of 2.0 in x
0.100 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.100 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.100 * [taylor]: Taking taylor expansion of x in x
0.101 * [taylor]: Taking taylor expansion of 1.0 in x
0.101 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow x 2))) 1.0) in x
0.101 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow x 2))) in x
0.101 * [taylor]: Taking taylor expansion of 2.0 in x
0.101 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.101 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.101 * [taylor]: Taking taylor expansion of x in x
0.101 * [taylor]: Taking taylor expansion of 1.0 in x
0.120 * * * [progress]: simplifying candidates
0.121 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (expm1 (* (* x x) 2.0))
  (log1p (* (* x x) 2.0))
  (* (* x x) 2.0)
  (* (* x x) 2.0)
  (+ (+ (log x) (log x)) (log 2.0))
  (+ (log (* x x)) (log 2.0))
  (log (* (* x x) 2.0))
  (exp (* (* x x) 2.0))
  (* (* (* (* x x) x) (* (* x x) x)) (* (* 2.0 2.0) 2.0))
  (* (* (* (* x x) (* x x)) (* x x)) (* (* 2.0 2.0) 2.0))
  (* (cbrt (* (* x x) 2.0)) (cbrt (* (* x x) 2.0)))
  (cbrt (* (* x x) 2.0))
  (* (* (* (* x x) 2.0) (* (* x x) 2.0)) (* (* x x) 2.0))
  (sqrt (* (* x x) 2.0))
  (sqrt (* (* x x) 2.0))
  (* x (sqrt 2.0))
  (* x (sqrt 2.0))
  (* (* x x) (* (cbrt 2.0) (cbrt 2.0)))
  (* (* x x) (sqrt 2.0))
  (* (* x x) 1)
  (* x 2.0)
  (fma (* x x) 2.0 (- (* (cbrt 1.0) (* (cbrt 1.0) (cbrt 1.0)))))
  (fma (- (cbrt 1.0)) (* (cbrt 1.0) (cbrt 1.0)) (* (cbrt 1.0) (* (cbrt 1.0) (cbrt 1.0))))
  (fma (* x x) 2.0 (- (* (sqrt 1.0) (sqrt 1.0))))
  (fma (- (sqrt 1.0)) (sqrt 1.0) (* (sqrt 1.0) (sqrt 1.0)))
  (fma (* x x) 2.0 (- (* 1.0 1)))
  (fma (- 1.0) 1 (* 1.0 1))
  (expm1 (- (* (* x x) 2.0) 1.0))
  (log1p (- (* (* x x) 2.0) 1.0))
  (- 1.0)
  (/ (exp (* (* x x) 2.0)) (exp 1.0))
  (log (- (* (* x x) 2.0) 1.0))
  (exp (- (* (* x x) 2.0) 1.0))
  (* (cbrt (- (* (* x x) 2.0) 1.0)) (cbrt (- (* (* x x) 2.0) 1.0)))
  (cbrt (- (* (* x x) 2.0) 1.0))
  (* (* (- (* (* x x) 2.0) 1.0) (- (* (* x x) 2.0) 1.0)) (- (* (* x x) 2.0) 1.0))
  (sqrt (- (* (* x x) 2.0) 1.0))
  (sqrt (- (* (* x x) 2.0) 1.0))
  (- (pow (* (* x x) 2.0) 3) (pow 1.0 3))
  (+ (* (* (* x x) 2.0) (* (* x x) 2.0)) (+ (* 1.0 1.0) (* (* (* x x) 2.0) 1.0)))
  (- 1.0)
  (- (* (* (* x x) 2.0) (* (* x x) 2.0)) (* 1.0 1.0))
  (+ (* (* x x) 2.0) 1.0)
  (- 1.0)
  (* 2.0 (pow x 2))
  (* 2.0 (pow x 2))
  (* 2.0 (pow x 2))
  (- (* 2.0 (pow x 2)) 1.0)
  (- (* 2.0 (pow x 2)) 1.0)
  (- (* 2.0 (pow x 2)) 1.0)
0.124 * * [simplify]: iteration  0 :  192  enodes  (cost  194 )
0.129 * * [simplify]: iteration  1 :  774  enodes  (cost  160 )
0.149 * * [simplify]: iteration  2 :  3831  enodes  (cost  154 )
0.239 * * [simplify]: iteration  3 :  5001  enodes  (cost  154 )
0.240 * [simplify]: Simplified to:
   (expm1 (* (* x x) 2.0))
  (log1p (* (* x x) 2.0))
  (* (* x x) 2.0)
  (* (* x x) 2.0)
  (log (* (* x x) 2.0))
  (log (* (* x x) 2.0))
  (log (* (* x x) 2.0))
  (exp (* (* x x) 2.0))
  (pow (* (* x x) 2.0) 3)
  (pow (* (* x x) 2.0) 3)
  (* (cbrt (* (* x x) 2.0)) (cbrt (* (* x x) 2.0)))
  (cbrt (* (* x x) 2.0))
  (pow (* (* x x) 2.0) 3)
  (sqrt (* (* x x) 2.0))
  (sqrt (* (* x x) 2.0))
  (* x (sqrt 2.0))
  (* x (sqrt 2.0))
  (* (* x x) (* (cbrt 2.0) (cbrt 2.0)))
  (* (* x x) (sqrt 2.0))
  (pow x 2)
  (* x 2.0)
  (- (* (* x x) 2.0) 1.0)
  (- 1.0 1.0)
  (- (* (* x x) 2.0) 1.0)
  (- 1.0 1.0)
  (- (* (* x x) 2.0) 1.0)
  (- 1.0 1.0)
  (expm1 (- (* (* x x) 2.0) 1.0))
  (log1p (- (* (* x x) 2.0) 1.0))
  (- 1.0)
  (exp (- (* (* x x) 2.0) 1.0))
  (log (- (* (* x x) 2.0) 1.0))
  (exp (- (* (* x x) 2.0) 1.0))
  (* (cbrt (- (* (* x x) 2.0) 1.0)) (cbrt (- (* (* x x) 2.0) 1.0)))
  (cbrt (- (* (* x x) 2.0) 1.0))
  (pow (- (* (* x x) 2.0) 1.0) 3)
  (sqrt (- (* (* x x) 2.0) 1.0))
  (sqrt (- (* (* x x) 2.0) 1.0))
  (- (pow (* (* x x) 2.0) 3) (pow 1.0 3))
  (fma (* 2.0 2.0) (pow x 4) (* 1.0 (fma (* x x) 2.0 1.0)))
  (- 1.0)
  (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))
  (fma (* x x) 2.0 1.0)
  (- 1.0)
  (* (* x x) 2.0)
  (* (* x x) 2.0)
  (* (* x x) 2.0)
  (- (* (* x x) 2.0) 1.0)
  (- (* (* x x) 2.0) 1.0)
  (- (* (* x x) 2.0) 1.0)
0.240 * * * [progress]: adding candidates to table
0.299 * * [progress]: iteration 2 / 4
0.299 * * * [progress]: picking best candidate
0.303 * * * * [pick]: Picked  #<alt (λ (x) (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* x x) 2.0 1.0)))>
0.303 * * * [progress]: localizing error
0.315 * * * [progress]: generating rewritten candidates
0.315 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.317 * * * [progress]: generating series expansions
0.318 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.319 * [approximate]: Taking taylor expansion of (/ (fma 4.0 (pow x 4) (- 1.0)) (fma (pow x 2) 2.0 1.0)) in (x) around 0
0.319 * [taylor]: Taking taylor expansion of (/ (fma 4.0 (pow x 4) (- 1.0)) (fma (pow x 2) 2.0 1.0)) in x
0.319 * [taylor]: Taking taylor expansion of (fma 4.0 (pow x 4) (- 1.0)) in x
0.319 * [taylor]: Rewrote expression to (+ (* 4.0 (pow x 4)) (- 1.0))
0.319 * [taylor]: Taking taylor expansion of (* 4.0 (pow x 4)) in x
0.319 * [taylor]: Taking taylor expansion of 4.0 in x
0.319 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.319 * [taylor]: Taking taylor expansion of x in x
0.319 * [taylor]: Taking taylor expansion of (- 1.0) in x
0.319 * [taylor]: Taking taylor expansion of 1.0 in x
0.319 * [taylor]: Taking taylor expansion of (fma (pow x 2) 2.0 1.0) in x
0.319 * [taylor]: Rewrote expression to (+ (* (pow x 2) 2.0) 1.0)
0.319 * [taylor]: Taking taylor expansion of (* (pow x 2) 2.0) in x
0.319 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.319 * [taylor]: Taking taylor expansion of x in x
0.319 * [taylor]: Taking taylor expansion of 2.0 in x
0.319 * [taylor]: Taking taylor expansion of 1.0 in x
0.321 * [taylor]: Taking taylor expansion of (/ (fma 4.0 (pow x 4) (- 1.0)) (fma (pow x 2) 2.0 1.0)) in x
0.321 * [taylor]: Taking taylor expansion of (fma 4.0 (pow x 4) (- 1.0)) in x
0.321 * [taylor]: Rewrote expression to (+ (* 4.0 (pow x 4)) (- 1.0))
0.321 * [taylor]: Taking taylor expansion of (* 4.0 (pow x 4)) in x
0.321 * [taylor]: Taking taylor expansion of 4.0 in x
0.321 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.321 * [taylor]: Taking taylor expansion of x in x
0.321 * [taylor]: Taking taylor expansion of (- 1.0) in x
0.321 * [taylor]: Taking taylor expansion of 1.0 in x
0.321 * [taylor]: Taking taylor expansion of (fma (pow x 2) 2.0 1.0) in x
0.321 * [taylor]: Rewrote expression to (+ (* (pow x 2) 2.0) 1.0)
0.321 * [taylor]: Taking taylor expansion of (* (pow x 2) 2.0) in x
0.321 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.321 * [taylor]: Taking taylor expansion of x in x
0.321 * [taylor]: Taking taylor expansion of 2.0 in x
0.321 * [taylor]: Taking taylor expansion of 1.0 in x
0.354 * [approximate]: Taking taylor expansion of (/ (fma 4.0 (pow (/ 1 x) 4) (- 1.0)) (fma (/ 1 (pow x 2)) 2.0 1.0)) in (x) around 0
0.354 * [taylor]: Taking taylor expansion of (/ (fma 4.0 (pow (/ 1 x) 4) (- 1.0)) (fma (/ 1 (pow x 2)) 2.0 1.0)) in x
0.354 * [taylor]: Taking taylor expansion of (fma 4.0 (pow (/ 1 x) 4) (- 1.0)) in x
0.354 * [taylor]: Rewrote expression to (+ (* 4.0 (pow (/ 1 x) 4)) (- 1.0))
0.354 * [taylor]: Taking taylor expansion of (* 4.0 (pow (/ 1 x) 4)) in x
0.354 * [taylor]: Taking taylor expansion of 4.0 in x
0.354 * [taylor]: Taking taylor expansion of (pow (/ 1 x) 4) in x
0.354 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.354 * [taylor]: Taking taylor expansion of x in x
0.355 * [taylor]: Taking taylor expansion of (- 1.0) in x
0.355 * [taylor]: Taking taylor expansion of 1.0 in x
0.355 * [taylor]: Taking taylor expansion of (fma (/ 1 (pow x 2)) 2.0 1.0) in x
0.355 * [taylor]: Rewrote expression to (+ (* (/ 1 (pow x 2)) 2.0) 1.0)
0.355 * [taylor]: Taking taylor expansion of (* (/ 1 (pow x 2)) 2.0) in x
0.355 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.355 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.355 * [taylor]: Taking taylor expansion of x in x
0.355 * [taylor]: Taking taylor expansion of 2.0 in x
0.355 * [taylor]: Taking taylor expansion of 1.0 in x
0.357 * [taylor]: Taking taylor expansion of (/ (fma 4.0 (pow (/ 1 x) 4) (- 1.0)) (fma (/ 1 (pow x 2)) 2.0 1.0)) in x
0.357 * [taylor]: Taking taylor expansion of (fma 4.0 (pow (/ 1 x) 4) (- 1.0)) in x
0.357 * [taylor]: Rewrote expression to (+ (* 4.0 (pow (/ 1 x) 4)) (- 1.0))
0.357 * [taylor]: Taking taylor expansion of (* 4.0 (pow (/ 1 x) 4)) in x
0.357 * [taylor]: Taking taylor expansion of 4.0 in x
0.357 * [taylor]: Taking taylor expansion of (pow (/ 1 x) 4) in x
0.357 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.357 * [taylor]: Taking taylor expansion of x in x
0.358 * [taylor]: Taking taylor expansion of (- 1.0) in x
0.358 * [taylor]: Taking taylor expansion of 1.0 in x
0.358 * [taylor]: Taking taylor expansion of (fma (/ 1 (pow x 2)) 2.0 1.0) in x
0.358 * [taylor]: Rewrote expression to (+ (* (/ 1 (pow x 2)) 2.0) 1.0)
0.358 * [taylor]: Taking taylor expansion of (* (/ 1 (pow x 2)) 2.0) in x
0.358 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.358 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.358 * [taylor]: Taking taylor expansion of x in x
0.358 * [taylor]: Taking taylor expansion of 2.0 in x
0.358 * [taylor]: Taking taylor expansion of 1.0 in x
0.415 * [approximate]: Taking taylor expansion of (/ (fma 4.0 (pow (/ -1 x) 4) (- 1.0)) (fma (/ 1 (pow x 2)) 2.0 1.0)) in (x) around 0
0.415 * [taylor]: Taking taylor expansion of (/ (fma 4.0 (pow (/ -1 x) 4) (- 1.0)) (fma (/ 1 (pow x 2)) 2.0 1.0)) in x
0.415 * [taylor]: Taking taylor expansion of (fma 4.0 (pow (/ -1 x) 4) (- 1.0)) in x
0.415 * [taylor]: Rewrote expression to (+ (* 4.0 (pow (/ -1 x) 4)) (- 1.0))
0.415 * [taylor]: Taking taylor expansion of (* 4.0 (pow (/ -1 x) 4)) in x
0.415 * [taylor]: Taking taylor expansion of 4.0 in x
0.415 * [taylor]: Taking taylor expansion of (pow (/ -1 x) 4) in x
0.415 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.415 * [taylor]: Taking taylor expansion of -1 in x
0.415 * [taylor]: Taking taylor expansion of x in x
0.416 * [taylor]: Taking taylor expansion of (- 1.0) in x
0.416 * [taylor]: Taking taylor expansion of 1.0 in x
0.416 * [taylor]: Taking taylor expansion of (fma (/ 1 (pow x 2)) 2.0 1.0) in x
0.416 * [taylor]: Rewrote expression to (+ (* (/ 1 (pow x 2)) 2.0) 1.0)
0.416 * [taylor]: Taking taylor expansion of (* (/ 1 (pow x 2)) 2.0) in x
0.416 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.416 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.416 * [taylor]: Taking taylor expansion of x in x
0.417 * [taylor]: Taking taylor expansion of 2.0 in x
0.417 * [taylor]: Taking taylor expansion of 1.0 in x
0.418 * [taylor]: Taking taylor expansion of (/ (fma 4.0 (pow (/ -1 x) 4) (- 1.0)) (fma (/ 1 (pow x 2)) 2.0 1.0)) in x
0.418 * [taylor]: Taking taylor expansion of (fma 4.0 (pow (/ -1 x) 4) (- 1.0)) in x
0.419 * [taylor]: Rewrote expression to (+ (* 4.0 (pow (/ -1 x) 4)) (- 1.0))
0.419 * [taylor]: Taking taylor expansion of (* 4.0 (pow (/ -1 x) 4)) in x
0.419 * [taylor]: Taking taylor expansion of 4.0 in x
0.419 * [taylor]: Taking taylor expansion of (pow (/ -1 x) 4) in x
0.419 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.419 * [taylor]: Taking taylor expansion of -1 in x
0.419 * [taylor]: Taking taylor expansion of x in x
0.419 * [taylor]: Taking taylor expansion of (- 1.0) in x
0.419 * [taylor]: Taking taylor expansion of 1.0 in x
0.419 * [taylor]: Taking taylor expansion of (fma (/ 1 (pow x 2)) 2.0 1.0) in x
0.419 * [taylor]: Rewrote expression to (+ (* (/ 1 (pow x 2)) 2.0) 1.0)
0.419 * [taylor]: Taking taylor expansion of (* (/ 1 (pow x 2)) 2.0) in x
0.419 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.419 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.419 * [taylor]: Taking taylor expansion of x in x
0.420 * [taylor]: Taking taylor expansion of 2.0 in x
0.420 * [taylor]: Taking taylor expansion of 1.0 in x
0.476 * * * [progress]: simplifying candidates
0.476 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (expm1 (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* x x) 2.0 1.0)))
  (log1p (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* x x) 2.0 1.0)))
  (- (log (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))) (log (fma (* x x) 2.0 1.0)))
  (log (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* x x) 2.0 1.0)))
  (exp (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* x x) 2.0 1.0)))
  (/ (* (* (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))) (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))) (* (* (fma (* x x) 2.0 1.0) (fma (* x x) 2.0 1.0)) (fma (* x x) 2.0 1.0)))
  (* (cbrt (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* x x) 2.0 1.0))) (cbrt (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* x x) 2.0 1.0))))
  (cbrt (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* x x) 2.0 1.0)))
  (* (* (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* x x) 2.0 1.0)) (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* x x) 2.0 1.0))) (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* x x) 2.0 1.0)))
  (sqrt (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* x x) 2.0 1.0)))
  (sqrt (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* x x) 2.0 1.0)))
  (- (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))))
  (- (fma (* x x) 2.0 1.0))
  (/ (* (cbrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))) (cbrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))))) (* (cbrt (fma (* x x) 2.0 1.0)) (cbrt (fma (* x x) 2.0 1.0))))
  (/ (cbrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))) (cbrt (fma (* x x) 2.0 1.0)))
  (/ (* (cbrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))) (cbrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))))) (sqrt (fma (* x x) 2.0 1.0)))
  (/ (cbrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))) (sqrt (fma (* x x) 2.0 1.0)))
  (/ (* (cbrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))) (cbrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))))) 1)
  (/ (cbrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))) (fma (* x x) 2.0 1.0))
  (/ (sqrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))) (* (cbrt (fma (* x x) 2.0 1.0)) (cbrt (fma (* x x) 2.0 1.0))))
  (/ (sqrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))) (cbrt (fma (* x x) 2.0 1.0)))
  (/ (sqrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))) (sqrt (fma (* x x) 2.0 1.0)))
  (/ (sqrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))) (sqrt (fma (* x x) 2.0 1.0)))
  (/ (sqrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))) 1)
  (/ (sqrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))) (fma (* x x) 2.0 1.0))
  (/ 1 (* (cbrt (fma (* x x) 2.0 1.0)) (cbrt (fma (* x x) 2.0 1.0))))
  (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (cbrt (fma (* x x) 2.0 1.0)))
  (/ 1 (sqrt (fma (* x x) 2.0 1.0)))
  (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (sqrt (fma (* x x) 2.0 1.0)))
  (/ 1 1)
  (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* x x) 2.0 1.0))
  (/ 1 (fma (* x x) 2.0 1.0))
  (/ (fma (* x x) 2.0 1.0) (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))))
  (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (* (cbrt (fma (* x x) 2.0 1.0)) (cbrt (fma (* x x) 2.0 1.0))))
  (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (sqrt (fma (* x x) 2.0 1.0)))
  (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) 1)
  (/ (fma (* x x) 2.0 1.0) (cbrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))))
  (/ (fma (* x x) 2.0 1.0) (sqrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))))
  (/ (fma (* x x) 2.0 1.0) (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))))
  (- (* 2.0 (pow x 2)) 1.0)
  (- (* 2.0 (pow x 2)) 1.0)
  (- (* 2.0 (pow x 2)) 1.0)
0.481 * * [simplify]: iteration  0 :  112  enodes  (cost  402 )
0.483 * * [simplify]: iteration  1 :  342  enodes  (cost  368 )
0.492 * * [simplify]: iteration  2 :  1670  enodes  (cost  368 )
0.536 * * [simplify]: iteration  3 :  5001  enodes  (cost  367 )
0.539 * [simplify]: Simplified to:
   (expm1 (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* x x) 2.0 1.0)))
  (log1p (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* x x) 2.0 1.0)))
  (log (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* x x) 2.0 1.0)))
  (log (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* x x) 2.0 1.0)))
  (exp (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* x x) 2.0 1.0)))
  (pow (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* x x) 2.0 1.0)) 3)
  (* (cbrt (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* x x) 2.0 1.0))) (cbrt (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* x x) 2.0 1.0))))
  (cbrt (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* x x) 2.0 1.0)))
  (pow (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* x x) 2.0 1.0)) 3)
  (sqrt (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* x x) 2.0 1.0)))
  (sqrt (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* x x) 2.0 1.0)))
  (fma (- (* 2.0 2.0)) (pow x 4) (* 1.0 1.0))
  (- (fma (* x x) 2.0 1.0))
  (/ (* (cbrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))) (cbrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))))) (* (cbrt (fma (* x x) 2.0 1.0)) (cbrt (fma (* x x) 2.0 1.0))))
  (/ (cbrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))) (cbrt (fma (* x x) 2.0 1.0)))
  (/ (* (cbrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))) (cbrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))))) (sqrt (fma (* x x) 2.0 1.0)))
  (/ (cbrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))) (sqrt (fma (* x x) 2.0 1.0)))
  (* (cbrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))) (cbrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))))
  (/ (cbrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))) (fma (* x x) 2.0 1.0))
  (/ (sqrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))) (* (cbrt (fma (* x x) 2.0 1.0)) (cbrt (fma (* x x) 2.0 1.0))))
  (/ (sqrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))) (cbrt (fma (* x x) 2.0 1.0)))
  (/ (sqrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))) (sqrt (fma (* x x) 2.0 1.0)))
  (/ (sqrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))) (sqrt (fma (* x x) 2.0 1.0)))
  (sqrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))))
  (/ (sqrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))) (fma (* x x) 2.0 1.0))
  (/ 1 (* (cbrt (fma (* x x) 2.0 1.0)) (cbrt (fma (* x x) 2.0 1.0))))
  (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (cbrt (fma (* x x) 2.0 1.0)))
  (/ 1 (sqrt (fma (* x x) 2.0 1.0)))
  (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (sqrt (fma (* x x) 2.0 1.0)))
  1
  (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* x x) 2.0 1.0))
  (/ 1 (fma (* x x) 2.0 1.0))
  (/ (fma (* x x) 2.0 1.0) (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))))
  (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (* (cbrt (fma (* x x) 2.0 1.0)) (cbrt (fma (* x x) 2.0 1.0))))
  (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (sqrt (fma (* x x) 2.0 1.0)))
  (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))
  (/ (fma (* x x) 2.0 1.0) (cbrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))))
  (/ (fma (* x x) 2.0 1.0) (sqrt (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0)))))
  (/ (fma (* x x) 2.0 1.0) (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))))
  (- (* 2.0 (pow x 2)) 1.0)
  (- (* 2.0 (pow x 2)) 1.0)
  (- (* 2.0 (pow x 2)) 1.0)
0.539 * * * [progress]: adding candidates to table
0.622 * [progress]: [Phase 3 of 3] Extracting.
0.622 * * [regime]: Finding splitpoints for: (#<alt (λ (x) (- (* (* x x) 2.0) 1.0))> #<alt (λ (x) (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* x x) 2.0 1.0)))>)
0.622 * * * [regime-changes]: Trying 4 branch expressions: ((* x x) (* (* x x) 2.0) (- (* (* x x) 2.0) 1.0) x)
0.622 * * * * [regimes]: Trying to branch on (* x x) from (#<alt (λ (x) (- (* (* x x) 2.0) 1.0))> #<alt (λ (x) (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* x x) 2.0 1.0)))>)
0.634 * * * * [regimes]: Trying to branch on (* (* x x) 2.0) from (#<alt (λ (x) (- (* (* x x) 2.0) 1.0))> #<alt (λ (x) (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* x x) 2.0 1.0)))>)
0.644 * * * * [regimes]: Trying to branch on (- (* (* x x) 2.0) 1.0) from (#<alt (λ (x) (- (* (* x x) 2.0) 1.0))> #<alt (λ (x) (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* x x) 2.0 1.0)))>)
0.653 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x) (- (* (* x x) 2.0) 1.0))> #<alt (λ (x) (/ (fma (* 2.0 2.0) (pow x 4) (- (* 1.0 1.0))) (fma (* x x) 2.0 1.0)))>)
0.663 * * * [regime]: Found split indices: #<option (#s(si 0 255))>
0.663 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (* (* x x) 2.0) 1.0)
0.664 * * [simplify]: iteration  0 :  7  enodes  (cost  3 )
0.664 * * [simplify]: iteration  1 :  7  enodes  (cost  3 )
0.664 * [simplify]: Simplified to:
   (- (* (* x x) 2.0) 1.0)
1.016 * [regime-testing]: Baseline error score: 0.001557623655286573
1.017 * [regime-testing]: Oracle error score: 0.0008751093886735842
1.017 * [regime-testing]: End program error score: 0.001557623655286573