16.257 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.017 * * * [progress]: [2/2] Setting up program.
0.019 * [progress]: [Phase 2 of 3] Improving.
0.019 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (* x x) (* y y))
0.021 * * [simplify]: iteration  0 :  11  enodes  (cost  3 )
0.022 * * [simplify]: iteration  1 :  18  enodes  (cost  3 )
0.023 * * [simplify]: iteration  2 :  35  enodes  (cost  3 )
0.025 * * [simplify]: iteration  3 :  67  enodes  (cost  3 )
0.027 * * [simplify]: iteration  4 :  163  enodes  (cost  3 )
0.029 * * [simplify]: iteration  5 :  294  enodes  (cost  3 )
0.033 * * [simplify]: iteration  6 :  541  enodes  (cost  3 )
0.042 * * [simplify]: iteration  7 :  2138  enodes  (cost  3 )
0.098 * * [simplify]: iteration  8 :  5001  enodes  (cost  3 )
0.098 * [simplify]: Simplified to:
   (- (* x x) (* y y))
0.098 * * [progress]: iteration 1 / 4
0.098 * * * [progress]: picking best candidate
0.099 * * * * [pick]: Picked  #<alt (λ (x y) (- (* x x) (* y y)))>
0.099 * * * [progress]: localizing error
0.103 * * * [progress]: generating rewritten candidates
0.103 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.107 * * * [progress]: generating series expansions
0.107 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.107 * [approximate]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in (x y) around 0
0.107 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in y
0.107 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.107 * [taylor]: Taking taylor expansion of x in y
0.107 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.107 * [taylor]: Taking taylor expansion of y in y
0.107 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
0.107 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.107 * [taylor]: Taking taylor expansion of x in x
0.107 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.107 * [taylor]: Taking taylor expansion of y in x
0.107 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
0.107 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.107 * [taylor]: Taking taylor expansion of x in x
0.107 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.107 * [taylor]: Taking taylor expansion of y in x
0.107 * [taylor]: Taking taylor expansion of (- (pow y 2)) in y
0.107 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.107 * [taylor]: Taking taylor expansion of y in y
0.108 * [taylor]: Taking taylor expansion of 0 in y
0.109 * [taylor]: Taking taylor expansion of 1 in y
0.111 * [taylor]: Taking taylor expansion of 0 in y
0.113 * [taylor]: Taking taylor expansion of 0 in y
0.113 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
0.113 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.113 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.113 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.113 * [taylor]: Taking taylor expansion of x in y
0.113 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.114 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.114 * [taylor]: Taking taylor expansion of y in y
0.114 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.114 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.114 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.114 * [taylor]: Taking taylor expansion of x in x
0.115 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.115 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.115 * [taylor]: Taking taylor expansion of y in x
0.115 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.115 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.115 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.115 * [taylor]: Taking taylor expansion of x in x
0.115 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.115 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.115 * [taylor]: Taking taylor expansion of y in x
0.116 * [taylor]: Taking taylor expansion of 1 in y
0.117 * [taylor]: Taking taylor expansion of 0 in y
0.118 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
0.118 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.118 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.118 * [taylor]: Taking taylor expansion of y in y
0.120 * [taylor]: Taking taylor expansion of 0 in y
0.123 * [taylor]: Taking taylor expansion of 0 in y
0.125 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
0.125 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.125 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.125 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.125 * [taylor]: Taking taylor expansion of x in y
0.125 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.125 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.125 * [taylor]: Taking taylor expansion of y in y
0.126 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.126 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.126 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.126 * [taylor]: Taking taylor expansion of x in x
0.126 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.126 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.126 * [taylor]: Taking taylor expansion of y in x
0.126 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.126 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.126 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.126 * [taylor]: Taking taylor expansion of x in x
0.127 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.127 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.127 * [taylor]: Taking taylor expansion of y in x
0.127 * [taylor]: Taking taylor expansion of 1 in y
0.128 * [taylor]: Taking taylor expansion of 0 in y
0.129 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
0.129 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.129 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.129 * [taylor]: Taking taylor expansion of y in y
0.132 * [taylor]: Taking taylor expansion of 0 in y
0.135 * [taylor]: Taking taylor expansion of 0 in y
0.136 * * * [progress]: simplifying candidates
0.137 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (fma x x (- (* y y)))
  (fma (- y) y (* y y))
  (expm1 (- (* x x) (* y y)))
  (log1p (- (* x x) (* y y)))
  (- (* y y))
  (/ (exp (* x x)) (exp (* y y)))
  (log (- (* x x) (* y y)))
  (exp (- (* x x) (* y y)))
  (* (cbrt (- (* x x) (* y y))) (cbrt (- (* x x) (* y y))))
  (cbrt (- (* x x) (* y y)))
  (* (* (- (* x x) (* y y)) (- (* x x) (* y y))) (- (* x x) (* y y)))
  (sqrt (- (* x x) (* y y)))
  (sqrt (- (* x x) (* y y)))
  (- (pow (* x x) 3) (pow (* y y) 3))
  (+ (* (* x x) (* x x)) (+ (* (* y y) (* y y)) (* (* x x) (* y y))))
  (- (* y y))
  (- (* (* x x) (* x x)) (* (* y y) (* y y)))
  (+ (* x x) (* y y))
  (+ x y)
  (- x y)
  (- (* y y))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
0.139 * * [simplify]: iteration  0 :  102  enodes  (cost  97 )
0.142 * * [simplify]: iteration  1 :  416  enodes  (cost  87 )
0.149 * * [simplify]: iteration  2 :  1403  enodes  (cost  84 )
0.175 * * [simplify]: iteration  3 :  5002  enodes  (cost  80 )
0.175 * [simplify]: Simplified to:
   (- (* x x) (* y y))
  0
  (expm1 (- (* x x) (* y y)))
  (log1p (- (* x x) (* y y)))
  (- (* y y))
  (exp (- (* x x) (* y y)))
  (log (- (* x x) (* y y)))
  (exp (- (* x x) (* y y)))
  (* (cbrt (- (* x x) (* y y))) (cbrt (- (* x x) (* y y))))
  (cbrt (- (* x x) (* y y)))
  (pow (- (* x x) (* y y)) 3)
  (sqrt (- (* x x) (* y y)))
  (sqrt (- (* x x) (* y y)))
  (fma (- (pow y 5)) y (pow x 6))
  (fma y (* y (fma x x (* y y))) (pow x 4))
  (- (* y y))
  (fma (- (pow y 3)) y (pow x 4))
  (fma x x (* y y))
  (+ x y)
  (- x y)
  (- (* y y))
  (- (* x x) (* y y))
  (- (* x x) (* y y))
  (- (* x x) (* y y))
0.176 * * * [progress]: adding candidates to table
0.210 * * [progress]: iteration 2 / 4
0.210 * * * [progress]: picking best candidate
0.212 * * * * [pick]: Picked  #<alt (λ (x y) (fma x x (- (* y y))))>
0.212 * * * [progress]: localizing error
0.216 * * * [progress]: generating rewritten candidates
0.216 * * * [progress]: generating series expansions
0.216 * * * [progress]: simplifying candidates
0.216 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.218 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.219 * [simplify]: Simplified to:
   
0.219 * * * [progress]: adding candidates to table
0.219 * [progress]: [Phase 3 of 3] Extracting.
0.220 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (fma x x (- (* y y)))
0.221 * * [simplify]: iteration  0 :  8  enodes  (cost  3 )
0.221 * * [simplify]: iteration  1 :  8  enodes  (cost  3 )
0.221 * [simplify]: Simplified to:
   (fma x x (- (* y y)))
0.749 * [regime-testing]: End program error score: 0.004198645143233049