25.155 * [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-regraph> :
   (- (* (* x x) 2.0) 1.0)
0.014 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
0.015 * * [simplify]: iteration  1 :  11  enodes  (cost  7 )
0.016 * * [simplify]: iteration  2 :  14  enodes  (cost  7 )
0.018 * * [simplify]: iteration  done :  14  enodes  (cost  7 )
0.018 * [simplify]: Simplified to:
   (- (* (* x x) 2.0) 1.0)
0.018 * * [progress]: iteration 1 / 4
0.018 * * * [progress]: picking best candidate
0.019 * * * * [pick]: Picked  #<alt (λ (x) (- (* (* x x) 2.0) 1.0))>
0.019 * * * [progress]: localizing error
0.023 * * * [progress]: generating rewritten candidates
0.023 * * * * [progress]: [ 1 / 2 ] rewriting at (2 1)
0.031 * * * * [progress]: [ 2 / 2 ] rewriting at (2)
0.039 * * * [progress]: generating series expansions
0.039 * * * * [progress]: [ 1 / 2 ] generating series at (2 1)
0.039 * [approximate]: Taking taylor expansion of (* 2.0 (pow x 2)) in (x) around 0
0.039 * [taylor]: Taking taylor expansion of (* 2.0 (pow x 2)) in x
0.039 * [taylor]: Taking taylor expansion of 2.0 in x
0.039 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.039 * [taylor]: Taking taylor expansion of x in x
0.039 * [taylor]: Taking taylor expansion of (* 2.0 (pow x 2)) in x
0.039 * [taylor]: Taking taylor expansion of 2.0 in x
0.039 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.039 * [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
0.051 * [taylor]: Taking taylor expansion of (/ 2.0 (pow x 2)) in x
0.051 * [taylor]: Taking taylor expansion of 2.0 in x
0.051 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.051 * [taylor]: Taking taylor expansion of x in x
0.058 * [approximate]: Taking taylor expansion of (/ 2.0 (pow x 2)) in (x) around 0
0.058 * [taylor]: Taking taylor expansion of (/ 2.0 (pow x 2)) in x
0.058 * [taylor]: Taking taylor expansion of 2.0 in x
0.058 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.058 * [taylor]: Taking taylor expansion of x in x
0.059 * [taylor]: Taking taylor expansion of (/ 2.0 (pow x 2)) in x
0.059 * [taylor]: Taking taylor expansion of 2.0 in x
0.059 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.059 * [taylor]: Taking taylor expansion of x in x
0.066 * * * * [progress]: [ 2 / 2 ] generating series at (2)
0.067 * [approximate]: Taking taylor expansion of (- (* 2.0 (pow x 2)) 1.0) in (x) around 0
0.067 * [taylor]: Taking taylor expansion of (- (* 2.0 (pow x 2)) 1.0) in x
0.067 * [taylor]: Taking taylor expansion of (* 2.0 (pow x 2)) in x
0.067 * [taylor]: Taking taylor expansion of 2.0 in x
0.067 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.067 * [taylor]: Taking taylor expansion of x in x
0.067 * [taylor]: Taking taylor expansion of 1.0 in x
0.067 * [taylor]: Taking taylor expansion of (- (* 2.0 (pow x 2)) 1.0) in x
0.067 * [taylor]: Taking taylor expansion of (* 2.0 (pow x 2)) in x
0.067 * [taylor]: Taking taylor expansion of 2.0 in x
0.067 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.067 * [taylor]: Taking taylor expansion of x in x
0.067 * [taylor]: Taking taylor expansion of 1.0 in x
0.079 * [approximate]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow x 2))) 1.0) in (x) around 0
0.079 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow x 2))) 1.0) in x
0.079 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow x 2))) in x
0.079 * [taylor]: Taking taylor expansion of 2.0 in x
0.079 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.079 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.079 * [taylor]: Taking taylor expansion of x in x
0.080 * [taylor]: Taking taylor expansion of 1.0 in x
0.080 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow x 2))) 1.0) in x
0.080 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow x 2))) in x
0.080 * [taylor]: Taking taylor expansion of 2.0 in x
0.080 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.080 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.080 * [taylor]: Taking taylor expansion of x in x
0.080 * [taylor]: Taking taylor expansion of 1.0 in x
0.099 * [approximate]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow x 2))) 1.0) in (x) around 0
0.099 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow x 2))) 1.0) in x
0.099 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow x 2))) in x
0.099 * [taylor]: Taking taylor expansion of 2.0 in x
0.099 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.099 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.099 * [taylor]: Taking taylor expansion of x in x
0.100 * [taylor]: Taking taylor expansion of 1.0 in x
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
0.100 * [taylor]: Taking taylor expansion of 1.0 in x
0.124 * * * [progress]: simplifying candidates
0.124 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (* (* 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)
  (/ (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)
0.126 * * [simplify]: iteration  0 :  60  enodes  (cost  335 )
0.137 * * [simplify]: iteration  1 :  142  enodes  (cost  317 )
0.186 * * [simplify]: iteration  2 :  489  enodes  (cost  275 )
0.671 * * [simplify]: iteration  3 :  1901  enodes  (cost  275 )
2.658 * * [simplify]: iteration  done :  5000  enodes  (cost  275 )
2.658 * [simplify]: Simplified to:
   (* (* 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))
  (* (sqrt 2.0) x)
  (* (sqrt 2.0) x)
  (* (* x x) (* (cbrt 2.0) (cbrt 2.0)))
  (* (* x x) (sqrt 2.0))
  (pow x 2)
  (* x 2.0)
  (exp (- (* 2.0 (pow x 2)) 1.0))
  (log (- (* (* x x) 2.0) 1.0))
  (exp (- (* 2.0 (pow x 2)) 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))
  (+ (* (* 2.0 2.0) (pow x 4)) (* 1.0 (+ (* (* x x) 2.0) 1.0)))
  (- 1.0)
  (- (* (* 2.0 2.0) (pow x 4)) (* 1.0 1.0))
  (+ (* (* 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)
2.659 * * * [progress]: adding candidates to table
2.709 * * [progress]: iteration 2 / 4
2.709 * * * [progress]: picking best candidate
2.710 * * * * [pick]: Picked  #<alt (λ (x) (cbrt (pow (- (* (* x x) 2.0) 1.0) 3)))>
2.710 * * * [progress]: localizing error
2.718 * * * [progress]: generating rewritten candidates
2.718 * * * * [progress]: [ 1 / 4 ] rewriting at (2)
2.735 * * * * [progress]: [ 2 / 4 ] rewriting at (2 1)
2.749 * * * * [progress]: [ 3 / 4 ] rewriting at (2 1 1 1)
2.757 * * * * [progress]: [ 4 / 4 ] rewriting at (2 1 1)
2.766 * * * [progress]: generating series expansions
2.766 * * * * [progress]: [ 1 / 4 ] generating series at (2)
2.767 * [approximate]: Taking taylor expansion of (- (* 2.0 (pow x 2)) 1.0) in (x) around 0
2.767 * [taylor]: Taking taylor expansion of (- (* 2.0 (pow x 2)) 1.0) in x
2.767 * [taylor]: Taking taylor expansion of (* 2.0 (pow x 2)) in x
2.767 * [taylor]: Taking taylor expansion of 2.0 in x
2.767 * [taylor]: Taking taylor expansion of (pow x 2) in x
2.767 * [taylor]: Taking taylor expansion of x in x
2.767 * [taylor]: Taking taylor expansion of 1.0 in x
2.767 * [taylor]: Taking taylor expansion of (- (* 2.0 (pow x 2)) 1.0) in x
2.767 * [taylor]: Taking taylor expansion of (* 2.0 (pow x 2)) in x
2.767 * [taylor]: Taking taylor expansion of 2.0 in x
2.767 * [taylor]: Taking taylor expansion of (pow x 2) in x
2.767 * [taylor]: Taking taylor expansion of x in x
2.767 * [taylor]: Taking taylor expansion of 1.0 in x
2.780 * [approximate]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow x 2))) 1.0) in (x) around 0
2.780 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow x 2))) 1.0) in x
2.780 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow x 2))) in x
2.780 * [taylor]: Taking taylor expansion of 2.0 in x
2.780 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
2.780 * [taylor]: Taking taylor expansion of (pow x 2) in x
2.780 * [taylor]: Taking taylor expansion of x in x
2.781 * [taylor]: Taking taylor expansion of 1.0 in x
2.781 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow x 2))) 1.0) in x
2.781 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow x 2))) in x
2.781 * [taylor]: Taking taylor expansion of 2.0 in x
2.781 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
2.781 * [taylor]: Taking taylor expansion of (pow x 2) in x
2.781 * [taylor]: Taking taylor expansion of x in x
2.781 * [taylor]: Taking taylor expansion of 1.0 in x
2.800 * [approximate]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow x 2))) 1.0) in (x) around 0
2.801 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow x 2))) 1.0) in x
2.801 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow x 2))) in x
2.801 * [taylor]: Taking taylor expansion of 2.0 in x
2.801 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
2.801 * [taylor]: Taking taylor expansion of (pow x 2) in x
2.801 * [taylor]: Taking taylor expansion of x in x
2.801 * [taylor]: Taking taylor expansion of 1.0 in x
2.801 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow x 2))) 1.0) in x
2.801 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow x 2))) in x
2.801 * [taylor]: Taking taylor expansion of 2.0 in x
2.801 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
2.801 * [taylor]: Taking taylor expansion of (pow x 2) in x
2.801 * [taylor]: Taking taylor expansion of x in x
2.802 * [taylor]: Taking taylor expansion of 1.0 in x
2.825 * * * * [progress]: [ 2 / 4 ] generating series at (2 1)
2.825 * [approximate]: Taking taylor expansion of (pow (- (* 2.0 (pow x 2)) 1.0) 3) in (x) around 0
2.825 * [taylor]: Taking taylor expansion of (pow (- (* 2.0 (pow x 2)) 1.0) 3) in x
2.825 * [taylor]: Taking taylor expansion of (- (* 2.0 (pow x 2)) 1.0) in x
2.825 * [taylor]: Taking taylor expansion of (* 2.0 (pow x 2)) in x
2.825 * [taylor]: Taking taylor expansion of 2.0 in x
2.825 * [taylor]: Taking taylor expansion of (pow x 2) in x
2.825 * [taylor]: Taking taylor expansion of x in x
2.825 * [taylor]: Taking taylor expansion of 1.0 in x
2.826 * [taylor]: Taking taylor expansion of (pow (- (* 2.0 (pow x 2)) 1.0) 3) in x
2.826 * [taylor]: Taking taylor expansion of (- (* 2.0 (pow x 2)) 1.0) in x
2.826 * [taylor]: Taking taylor expansion of (* 2.0 (pow x 2)) in x
2.826 * [taylor]: Taking taylor expansion of 2.0 in x
2.826 * [taylor]: Taking taylor expansion of (pow x 2) in x
2.826 * [taylor]: Taking taylor expansion of x in x
2.826 * [taylor]: Taking taylor expansion of 1.0 in x
2.847 * [approximate]: Taking taylor expansion of (pow (- (* 2.0 (/ 1 (pow x 2))) 1.0) 3) in (x) around 0
2.847 * [taylor]: Taking taylor expansion of (pow (- (* 2.0 (/ 1 (pow x 2))) 1.0) 3) in x
2.847 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow x 2))) 1.0) in x
2.847 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow x 2))) in x
2.847 * [taylor]: Taking taylor expansion of 2.0 in x
2.847 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
2.847 * [taylor]: Taking taylor expansion of (pow x 2) in x
2.847 * [taylor]: Taking taylor expansion of x in x
2.848 * [taylor]: Taking taylor expansion of 1.0 in x
2.848 * [taylor]: Taking taylor expansion of (pow (- (* 2.0 (/ 1 (pow x 2))) 1.0) 3) in x
2.848 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow x 2))) 1.0) in x
2.848 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow x 2))) in x
2.848 * [taylor]: Taking taylor expansion of 2.0 in x
2.848 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
2.848 * [taylor]: Taking taylor expansion of (pow x 2) in x
2.848 * [taylor]: Taking taylor expansion of x in x
2.849 * [taylor]: Taking taylor expansion of 1.0 in x
2.873 * [approximate]: Taking taylor expansion of (pow (- (* 2.0 (/ 1 (pow x 2))) 1.0) 3) in (x) around 0
2.873 * [taylor]: Taking taylor expansion of (pow (- (* 2.0 (/ 1 (pow x 2))) 1.0) 3) in x
2.873 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow x 2))) 1.0) in x
2.873 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow x 2))) in x
2.873 * [taylor]: Taking taylor expansion of 2.0 in x
2.873 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
2.873 * [taylor]: Taking taylor expansion of (pow x 2) in x
2.873 * [taylor]: Taking taylor expansion of x in x
2.874 * [taylor]: Taking taylor expansion of 1.0 in x
2.874 * [taylor]: Taking taylor expansion of (pow (- (* 2.0 (/ 1 (pow x 2))) 1.0) 3) in x
2.874 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow x 2))) 1.0) in x
2.874 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow x 2))) in x
2.874 * [taylor]: Taking taylor expansion of 2.0 in x
2.874 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
2.874 * [taylor]: Taking taylor expansion of (pow x 2) in x
2.874 * [taylor]: Taking taylor expansion of x in x
2.875 * [taylor]: Taking taylor expansion of 1.0 in x
2.905 * * * * [progress]: [ 3 / 4 ] generating series at (2 1 1 1)
2.905 * [approximate]: Taking taylor expansion of (* 2.0 (pow x 2)) in (x) around 0
2.905 * [taylor]: Taking taylor expansion of (* 2.0 (pow x 2)) in x
2.905 * [taylor]: Taking taylor expansion of 2.0 in x
2.905 * [taylor]: Taking taylor expansion of (pow x 2) in x
2.905 * [taylor]: Taking taylor expansion of x in x
2.905 * [taylor]: Taking taylor expansion of (* 2.0 (pow x 2)) in x
2.905 * [taylor]: Taking taylor expansion of 2.0 in x
2.905 * [taylor]: Taking taylor expansion of (pow x 2) in x
2.905 * [taylor]: Taking taylor expansion of x in x
2.913 * [approximate]: Taking taylor expansion of (/ 2.0 (pow x 2)) in (x) around 0
2.913 * [taylor]: Taking taylor expansion of (/ 2.0 (pow x 2)) in x
2.913 * [taylor]: Taking taylor expansion of 2.0 in x
2.913 * [taylor]: Taking taylor expansion of (pow x 2) in x
2.913 * [taylor]: Taking taylor expansion of x in x
2.913 * [taylor]: Taking taylor expansion of (/ 2.0 (pow x 2)) in x
2.913 * [taylor]: Taking taylor expansion of 2.0 in x
2.913 * [taylor]: Taking taylor expansion of (pow x 2) in x
2.914 * [taylor]: Taking taylor expansion of x in x
2.921 * [approximate]: Taking taylor expansion of (/ 2.0 (pow x 2)) in (x) around 0
2.921 * [taylor]: Taking taylor expansion of (/ 2.0 (pow x 2)) in x
2.921 * [taylor]: Taking taylor expansion of 2.0 in x
2.921 * [taylor]: Taking taylor expansion of (pow x 2) in x
2.921 * [taylor]: Taking taylor expansion of x in x
2.922 * [taylor]: Taking taylor expansion of (/ 2.0 (pow x 2)) in x
2.922 * [taylor]: Taking taylor expansion of 2.0 in x
2.922 * [taylor]: Taking taylor expansion of (pow x 2) in x
2.922 * [taylor]: Taking taylor expansion of x in x
2.929 * * * * [progress]: [ 4 / 4 ] generating series at (2 1 1)
2.929 * [approximate]: Taking taylor expansion of (- (* 2.0 (pow x 2)) 1.0) in (x) around 0
2.929 * [taylor]: Taking taylor expansion of (- (* 2.0 (pow x 2)) 1.0) in x
2.929 * [taylor]: Taking taylor expansion of (* 2.0 (pow x 2)) in x
2.929 * [taylor]: Taking taylor expansion of 2.0 in x
2.929 * [taylor]: Taking taylor expansion of (pow x 2) in x
2.929 * [taylor]: Taking taylor expansion of x in x
2.929 * [taylor]: Taking taylor expansion of 1.0 in x
2.929 * [taylor]: Taking taylor expansion of (- (* 2.0 (pow x 2)) 1.0) in x
2.929 * [taylor]: Taking taylor expansion of (* 2.0 (pow x 2)) in x
2.930 * [taylor]: Taking taylor expansion of 2.0 in x
2.930 * [taylor]: Taking taylor expansion of (pow x 2) in x
2.930 * [taylor]: Taking taylor expansion of x in x
2.930 * [taylor]: Taking taylor expansion of 1.0 in x
2.942 * [approximate]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow x 2))) 1.0) in (x) around 0
2.942 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow x 2))) 1.0) in x
2.942 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow x 2))) in x
2.942 * [taylor]: Taking taylor expansion of 2.0 in x
2.942 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
2.942 * [taylor]: Taking taylor expansion of (pow x 2) in x
2.942 * [taylor]: Taking taylor expansion of x in x
2.943 * [taylor]: Taking taylor expansion of 1.0 in x
2.943 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow x 2))) 1.0) in x
2.943 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow x 2))) in x
2.943 * [taylor]: Taking taylor expansion of 2.0 in x
2.943 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
2.943 * [taylor]: Taking taylor expansion of (pow x 2) in x
2.943 * [taylor]: Taking taylor expansion of x in x
2.943 * [taylor]: Taking taylor expansion of 1.0 in x
2.963 * [approximate]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow x 2))) 1.0) in (x) around 0
2.963 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow x 2))) 1.0) in x
2.963 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow x 2))) in x
2.963 * [taylor]: Taking taylor expansion of 2.0 in x
2.963 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
2.963 * [taylor]: Taking taylor expansion of (pow x 2) in x
2.963 * [taylor]: Taking taylor expansion of x in x
2.964 * [taylor]: Taking taylor expansion of 1.0 in x
2.964 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 (pow x 2))) 1.0) in x
2.964 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 (pow x 2))) in x
2.964 * [taylor]: Taking taylor expansion of 2.0 in x
2.964 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
2.964 * [taylor]: Taking taylor expansion of (pow x 2) in x
2.964 * [taylor]: Taking taylor expansion of x in x
2.964 * [taylor]: Taking taylor expansion of 1.0 in x
2.988 * * * [progress]: simplifying candidates
2.990 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (log (cbrt (pow (- (* (* x x) 2.0) 1.0) 3)))
  (exp (cbrt (pow (- (* (* x x) 2.0) 1.0) 3)))
  (cbrt (pow (* (cbrt (- (* (* x x) 2.0) 1.0)) (cbrt (- (* (* x x) 2.0) 1.0))) 3))
  (cbrt (pow (cbrt (- (* (* x x) 2.0) 1.0)) 3))
  (cbrt (pow (sqrt (- (* (* x x) 2.0) 1.0)) 3))
  (cbrt (pow (sqrt (- (* (* x x) 2.0) 1.0)) 3))
  (cbrt (pow 1 3))
  (cbrt (pow (- (* (* x x) 2.0) 1.0) 3))
  (cbrt (* (- (* (* x x) 2.0) 1.0) (- (* (* x x) 2.0) 1.0)))
  (cbrt (- (* (* x x) 2.0) 1.0))
  (cbrt (* (cbrt (pow (- (* (* x x) 2.0) 1.0) 3)) (cbrt (pow (- (* (* x x) 2.0) 1.0) 3))))
  (cbrt (cbrt (pow (- (* (* x x) 2.0) 1.0) 3)))
  (cbrt (pow (* (cbrt (- (* (* x x) 2.0) 1.0)) (cbrt (- (* (* x x) 2.0) 1.0))) 3))
  (cbrt (pow (cbrt (- (* (* x x) 2.0) 1.0)) 3))
  (cbrt (pow (sqrt (- (* (* x x) 2.0) 1.0)) 3))
  (cbrt (pow (sqrt (- (* (* x x) 2.0) 1.0)) 3))
  (cbrt (pow 1 3))
  (cbrt (pow (- (* (* x x) 2.0) 1.0) 3))
  (cbrt (- (* (* x x) 2.0) 1.0))
  (cbrt (* (- (* (* x x) 2.0) 1.0) (- (* (* x x) 2.0) 1.0)))
  (cbrt (sqrt (pow (- (* (* x x) 2.0) 1.0) 3)))
  (cbrt (sqrt (pow (- (* (* x x) 2.0) 1.0) 3)))
  (cbrt 1)
  (cbrt (pow (- (* (* x x) 2.0) 1.0) 3))
  (cbrt (pow (- (* (* x x) 2.0) 1.0) (/ 3 2)))
  (cbrt (pow (- (* (* x x) 2.0) 1.0) (/ 3 2)))
  (cbrt (pow (- (pow (* (* x x) 2.0) 3) (pow 1.0 3)) 3))
  (cbrt (pow (+ (* (* (* x x) 2.0) (* (* x x) 2.0)) (+ (* 1.0 1.0) (* (* (* x x) 2.0) 1.0))) 3))
  (cbrt (pow (- (* (* (* x x) 2.0) (* (* x x) 2.0)) (* 1.0 1.0)) 3))
  (cbrt (pow (+ (* (* x x) 2.0) 1.0) 3))
  (* (cbrt (cbrt (pow (- (* (* x x) 2.0) 1.0) 3))) (cbrt (cbrt (pow (- (* (* x x) 2.0) 1.0) 3))))
  (cbrt (cbrt (pow (- (* (* x x) 2.0) 1.0) 3)))
  (* (* (cbrt (pow (- (* (* x x) 2.0) 1.0) 3)) (cbrt (pow (- (* (* x x) 2.0) 1.0) 3))) (cbrt (pow (- (* (* x x) 2.0) 1.0) 3)))
  (sqrt (cbrt (pow (- (* (* x x) 2.0) 1.0) 3)))
  (sqrt (cbrt (pow (- (* (* x x) 2.0) 1.0) 3)))
  (* (log (- (* (* x x) 2.0) 1.0)) 3)
  (* (log (- (* (* x x) 2.0) 1.0)) 3)
  (* 1 3)
  (pow (- (* (* x x) 2.0) 1.0) (* (cbrt 3) (cbrt 3)))
  (pow (- (* (* x x) 2.0) 1.0) (sqrt 3))
  (pow (- (* (* x x) 2.0) 1.0) 1)
  (pow (* (cbrt (- (* (* x x) 2.0) 1.0)) (cbrt (- (* (* x x) 2.0) 1.0))) 3)
  (pow (cbrt (- (* (* x x) 2.0) 1.0)) 3)
  (pow (sqrt (- (* (* x x) 2.0) 1.0)) 3)
  (pow (sqrt (- (* (* x x) 2.0) 1.0)) 3)
  (pow 1 3)
  (pow (- (* (* x x) 2.0) 1.0) 3)
  (* (- (* (* x x) 2.0) 1.0) (- (* (* x x) 2.0) 1.0))
  (log (pow (- (* (* x x) 2.0) 1.0) 3))
  (exp (pow (- (* (* x x) 2.0) 1.0) 3))
  (* (cbrt (pow (- (* (* x x) 2.0) 1.0) 3)) (cbrt (pow (- (* (* x x) 2.0) 1.0) 3)))
  (cbrt (pow (- (* (* x x) 2.0) 1.0) 3))
  (* (* (pow (- (* (* x x) 2.0) 1.0) 3) (pow (- (* (* x x) 2.0) 1.0) 3)) (pow (- (* (* x x) 2.0) 1.0) 3))
  (pow (* (cbrt (- (* (* x x) 2.0) 1.0)) (cbrt (- (* (* x x) 2.0) 1.0))) 3)
  (pow (cbrt (- (* (* x x) 2.0) 1.0)) 3)
  (pow (sqrt (- (* (* x x) 2.0) 1.0)) 3)
  (pow (sqrt (- (* (* x x) 2.0) 1.0)) 3)
  (pow 1 3)
  (pow (- (* (* x x) 2.0) 1.0) 3)
  (pow (- (pow (* (* x x) 2.0) 3) (pow 1.0 3)) 3)
  (pow (+ (* (* (* x x) 2.0) (* (* x x) 2.0)) (+ (* 1.0 1.0) (* (* (* x x) 2.0) 1.0))) 3)
  (pow (- (* (* (* x x) 2.0) (* (* x x) 2.0)) (* 1.0 1.0)) 3)
  (pow (+ (* (* x x) 2.0) 1.0) 3)
  (* (- (* (* x x) 2.0) 1.0) (- (* (* x x) 2.0) 1.0))
  (sqrt (pow (- (* (* x x) 2.0) 1.0) 3))
  (sqrt (pow (- (* (* x x) 2.0) 1.0) 3))
  (pow (- (* (* x x) 2.0) 1.0) (/ 3 2))
  (pow (- (* (* x x) 2.0) 1.0) (/ 3 2))
  (* (* 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)
  (/ (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)) 1.0)
  (- (* 2.0 (pow x 2)) 1.0)
  (- (* 2.0 (pow x 2)) 1.0)
  (- (* 6.0 (pow x 2)) (+ (* 12.0 (pow x 4)) 1.0))
  (- (+ (* 6.0 (pow x 2)) (* 8.0 (pow x 6))) (* 12.0 (pow x 4)))
  (- (+ (* 6.0 (pow x 2)) (* 8.0 (pow x 6))) (* 12.0 (pow x 4)))
  (* 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)
2.993 * * [simplify]: iteration  0 :  119  enodes  (cost  1247 )
3.022 * * [simplify]: iteration  1 :  279  enodes  (cost  1021 )
3.117 * * [simplify]: iteration  2 :  925  enodes  (cost  929 )
3.614 * * [simplify]: iteration  done :  5000  enodes  (cost  929 )
3.615 * [simplify]: Simplified to:
   (log (- (* (* x x) 2.0) 1.0))
  (exp (- (* (* x x) 2.0) 1.0))
  (cbrt (pow (- (* (* x x) 2.0) 1.0) 2))
  (cbrt (- (* 2.0 (pow x 2)) 1.0))
  (sqrt (- (* (* x x) 2.0) 1.0))
  (sqrt (- (* (* x x) 2.0) 1.0))
  1
  (- (* (* x x) 2.0) 1.0)
  (cbrt (pow (- (* (* x x) 2.0) 1.0) 2))
  (cbrt (- (* 2.0 (pow x 2)) 1.0))
  (cbrt (pow (- (* (* x x) 2.0) 1.0) 2))
  (cbrt (- (* 2.0 (pow x 2)) 1.0))
  (cbrt (pow (- (* (* x x) 2.0) 1.0) 2))
  (cbrt (- (* 2.0 (pow x 2)) 1.0))
  (sqrt (- (* (* x x) 2.0) 1.0))
  (sqrt (- (* (* x x) 2.0) 1.0))
  1
  (- (* (* x x) 2.0) 1.0)
  (cbrt (- (* 2.0 (pow x 2)) 1.0))
  (cbrt (pow (- (* (* x x) 2.0) 1.0) 2))
  (cbrt (sqrt (pow (- (* (* x x) 2.0) 1.0) 3)))
  (cbrt (sqrt (pow (- (* (* x x) 2.0) 1.0) 3)))
  1
  (- (* (* x x) 2.0) 1.0)
  (cbrt (pow (- (* 2.0 (pow x 2)) 1.0) 3/2))
  (cbrt (pow (- (* 2.0 (pow x 2)) 1.0) 3/2))
  (- (pow (* 2.0 (pow x 2)) 3) (pow 1.0 3))
  (+ (* 1.0 (+ 1.0 (* (* x x) 2.0))) (* (pow x 4) (* 2.0 2.0)))
  (- (* (pow x 4) (* 2.0 2.0)) (* 1.0 1.0))
  (+ 1.0 (* (* x x) 2.0))
  (cbrt (pow (- (* (* x x) 2.0) 1.0) 2))
  (cbrt (- (* 2.0 (pow x 2)) 1.0))
  (pow (- (* (* x x) 2.0) 1.0) 3)
  (sqrt (- (* (* x x) 2.0) 1.0))
  (sqrt (- (* (* x x) 2.0) 1.0))
  (log (pow (- (* (* x x) 2.0) 1.0) 3))
  (log (pow (- (* (* x x) 2.0) 1.0) 3))
  3
  (pow (- (* (* x x) 2.0) 1.0) (* (cbrt 3) (cbrt 3)))
  (pow (- (* (* x x) 2.0) 1.0) (sqrt 3))
  (- (* (* x x) 2.0) 1.0)
  (pow (- (* (* x x) 2.0) 1.0) 2)
  (- (* (* x x) 2.0) 1.0)
  (pow (sqrt (- (* (* x x) 2.0) 1.0)) 3)
  (pow (sqrt (- (* (* x x) 2.0) 1.0)) 3)
  1
  (pow (- (* (* x x) 2.0) 1.0) 3)
  (pow (- (* (* x x) 2.0) 1.0) 2)
  (log (pow (- (* (* x x) 2.0) 1.0) 3))
  (exp (pow (- (* (* x x) 2.0) 1.0) 3))
  (pow (- (* (* x x) 2.0) 1.0) 2)
  (- (* (* x x) 2.0) 1.0)
  (pow (pow (- (* (* x x) 2.0) 1.0) 3) 3)
  (pow (- (* (* x x) 2.0) 1.0) 2)
  (- (* (* x x) 2.0) 1.0)
  (pow (sqrt (- (* (* x x) 2.0) 1.0)) 3)
  (pow (sqrt (- (* (* x x) 2.0) 1.0)) 3)
  1
  (pow (- (* (* x x) 2.0) 1.0) 3)
  (pow (- (pow (* (* x x) 2.0) 3) (pow 1.0 3)) 3)
  (pow (+ (* 1.0 (+ 1.0 (* (* x x) 2.0))) (* (pow x 4) (* 2.0 2.0))) 3)
  (pow (- (* (pow x 4) (* 2.0 2.0)) (* 1.0 1.0)) 3)
  (pow (+ (* (* x x) 2.0) 1.0) 3)
  (pow (- (* (* x x) 2.0) 1.0) 2)
  (sqrt (pow (- (* (* x x) 2.0) 1.0) 3))
  (sqrt (pow (- (* (* x x) 2.0) 1.0) 3))
  (pow (- (* 2.0 (pow x 2)) 1.0) 3/2)
  (pow (- (* 2.0 (pow x 2)) 1.0) 3/2)
  (* (* 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 (* 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)
  (exp (- (* (* x x) 2.0) 1.0))
  (log (- (* (* x x) 2.0) 1.0))
  (exp (- (* (* x x) 2.0) 1.0))
  (cbrt (pow (- (* (* x x) 2.0) 1.0) 2))
  (cbrt (- (* 2.0 (pow x 2)) 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 (* 2.0 (pow x 2)) 3) (pow 1.0 3))
  (+ (* 1.0 (+ 1.0 (* (* x x) 2.0))) (* (pow x 4) (* 2.0 2.0)))
  (- 1.0)
  (- (* (pow x 4) (* 2.0 2.0)) (* 1.0 1.0))
  (+ 1.0 (* (* x x) 2.0))
  (- 1.0)
  (- (* (* x x) 2.0) 1.0)
  (- (* (* x x) 2.0) 1.0)
  (- (* (* x x) 2.0) 1.0)
  (- (* 6.0 (pow x 2)) (+ (* 12.0 (pow x 4)) 1.0))
  (- (+ (* 6.0 (pow x 2)) (* 8.0 (pow x 6))) (* 12.0 (pow x 4)))
  (- (+ (* 6.0 (pow x 2)) (* 8.0 (pow x 6))) (* 12.0 (pow x 4)))
  (* (* 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)
3.616 * * * [progress]: adding candidates to table
3.765 * [progress]: [Phase 3 of 3] Extracting.
3.765 * * [regime]: Finding splitpoints for: (#<alt (λ (x) (- (* (* x x) 2.0) 1.0))> #<alt (λ (x) (cbrt (pow (- (* (* x x) 2.0) 1.0) 3)))>)
3.766 * * * [regime-changes]: Trying 4 branch expressions: ((* x x) (* (* x x) 2.0) (- (* (* x x) 2.0) 1.0) x)
3.766 * * * * [regimes]: Trying to branch on (* x x) from (#<alt (λ (x) (- (* (* x x) 2.0) 1.0))> #<alt (λ (x) (cbrt (pow (- (* (* x x) 2.0) 1.0) 3)))>)
3.775 * * * * [regimes]: Trying to branch on (* (* x x) 2.0) from (#<alt (λ (x) (- (* (* x x) 2.0) 1.0))> #<alt (λ (x) (cbrt (pow (- (* (* x x) 2.0) 1.0) 3)))>)
3.785 * * * * [regimes]: Trying to branch on (- (* (* x x) 2.0) 1.0) from (#<alt (λ (x) (- (* (* x x) 2.0) 1.0))> #<alt (λ (x) (cbrt (pow (- (* (* x x) 2.0) 1.0) 3)))>)
3.796 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x) (- (* (* x x) 2.0) 1.0))> #<alt (λ (x) (cbrt (pow (- (* (* x x) 2.0) 1.0) 3)))>)
3.806 * * * [regime]: Found split indices: #<option (#s(si 0 255))>
3.806 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (* (* x x) 2.0) 1.0)
3.806 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
3.806 * * [simplify]: iteration  1 :  7  enodes  (cost  7 )
3.807 * * [simplify]: iteration  done :  7  enodes  (cost  7 )
3.807 * [simplify]: Simplified to:
   (- (* (* x x) 2.0) 1.0)
4.159 * [regime-testing]: Baseline error score: 0.0013232857233055578
4.160 * [regime-testing]: Oracle error score: 0.0009482388424454502
4.161 * [regime-testing]: End program error score: 0.0013232857233055578