7.440 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.010 * * * [progress]: [2/2] Setting up program.
0.012 * [progress]: [Phase 2 of 3] Improving.
0.012 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (* (* x x) 2.0) 1.0)
0.013 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
0.014 * * [simplify]: iteration  1 :  12  enodes  (cost  7 )
0.015 * * [simplify]: iteration  2 :  17  enodes  (cost  7 )
0.017 * * [simplify]: iteration  3 :  18  enodes  (cost  7 )
0.019 * * [simplify]: iteration  done :  18  enodes  (cost  7 )
0.019 * [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
0.025 * * * [progress]: generating rewritten candidates
0.025 * * * * [progress]: [ 1 / 1 ] rewriting at (2 1)
0.033 * * * [progress]: generating series expansions
0.033 * * * * [progress]: [ 1 / 1 ] generating series at (2 1)
0.033 * [approximate]: Taking taylor expansion of (* 2.0 (pow x 2)) in (x) around 0
0.033 * [taylor]: Taking taylor expansion of (* 2.0 (pow x 2)) in x
0.033 * [taylor]: Taking taylor expansion of 2.0 in x
0.033 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.033 * [taylor]: Taking taylor expansion of x in x
0.033 * [taylor]: Taking taylor expansion of (* 2.0 (pow x 2)) in x
0.033 * [taylor]: Taking taylor expansion of 2.0 in x
0.033 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.033 * [taylor]: Taking taylor expansion of x in x
0.041 * [approximate]: Taking taylor expansion of (/ 2.0 (pow x 2)) in (x) around 0
0.042 * [taylor]: Taking taylor expansion of (/ 2.0 (pow x 2)) in x
0.042 * [taylor]: Taking taylor expansion of 2.0 in x
0.042 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.042 * [taylor]: Taking taylor expansion of x in x
0.042 * [taylor]: Taking taylor expansion of (/ 2.0 (pow x 2)) in x
0.042 * [taylor]: Taking taylor expansion of 2.0 in x
0.042 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.042 * [taylor]: Taking taylor expansion of x in x
0.050 * [approximate]: Taking taylor expansion of (/ 2.0 (pow x 2)) in (x) around 0
0.050 * [taylor]: Taking taylor expansion of (/ 2.0 (pow x 2)) in x
0.050 * [taylor]: Taking taylor expansion of 2.0 in x
0.050 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.050 * [taylor]: Taking taylor expansion of x in x
0.050 * [taylor]: Taking taylor expansion of (/ 2.0 (pow x 2)) in x
0.050 * [taylor]: Taking taylor expansion of 2.0 in x
0.050 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.050 * [taylor]: Taking taylor expansion of x in x
0.058 * * * [progress]: simplifying candidates
0.058 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (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)
  (* 2.0 (pow x 2))
  (* 2.0 (pow x 2))
  (* 2.0 (pow x 2))
0.059 * * [simplify]: iteration  0 :  39  enodes  (cost  177 )
0.066 * * [simplify]: iteration  1 :  98  enodes  (cost  172 )
0.092 * * [simplify]: iteration  2 :  406  enodes  (cost  142 )
0.266 * * [simplify]: iteration  3 :  2042  enodes  (cost  142 )
2.286 * * [simplify]: iteration  done :  5000  enodes  (cost  142 )
2.286 * [simplify]: Simplified to:
   (expm1 (* (* x x) 2.0))
  (log1p (* (* x x) 2.0))
  (* 2.0 (pow x 2))
  (* 2.0 (pow x 2))
  (log (* 2.0 (pow x 2)))
  (log (* 2.0 (pow x 2)))
  (log (* 2.0 (pow x 2)))
  (exp (* (* x x) 2.0))
  (pow (* 2.0 (pow x 2)) 3)
  (pow (* 2.0 (pow x 2)) 3)
  (* (cbrt (* (* x x) 2.0)) (cbrt (* (* x x) 2.0)))
  (cbrt (* (* x x) 2.0))
  (pow (* 2.0 (pow x 2)) 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))
  (* x x)
  (* x 2.0)
  (* 2.0 (pow x 2))
  (* 2.0 (pow x 2))
  (* 2.0 (pow x 2))
2.286 * * * [progress]: adding candidates to table
2.322 * [progress]: [Phase 3 of 3] Extracting.
2.323 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (* (* x x) 2.0) 1.0)
2.323 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
2.323 * * [simplify]: iteration  1 :  7  enodes  (cost  7 )
2.324 * * [simplify]: iteration  done :  7  enodes  (cost  7 )
2.324 * [simplify]: Simplified to:
   (- (* (* x x) 2.0) 1.0)
2.636 * [regime-testing]: End program error score: 0.0007500937617202151