7.341 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.023 * * * [progress]: [2/2] Setting up program.
0.026 * [progress]: [Phase 2 of 3] Improving.
0.026 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (/ (* (- x y) (+ x y)) (+ (* x x) (* y y)))
0.029 * * [simplify]: iteration  0 :  22  enodes  (cost  7 )
0.031 * * [simplify]: iteration  1 :  48  enodes  (cost  7 )
0.033 * * [simplify]: iteration  2 :  104  enodes  (cost  7 )
0.036 * * [simplify]: iteration  3 :  196  enodes  (cost  7 )
0.040 * * [simplify]: iteration  4 :  359  enodes  (cost  7 )
0.046 * * [simplify]: iteration  5 :  686  enodes  (cost  7 )
0.056 * * [simplify]: iteration  6 :  1343  enodes  (cost  7 )
0.094 * * [simplify]: iteration  7 :  5001  enodes  (cost  7 )
0.095 * [simplify]: Simplified to:
   (/ (* (- x y) (+ x y)) (+ (* x x) (* y y)))
0.095 * * [progress]: iteration 1 / 4
0.095 * * * [progress]: picking best candidate
0.097 * * * * [pick]: Picked  #<alt (λ (x y) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))>
0.098 * * * [progress]: localizing error
0.107 * * * [progress]: generating rewritten candidates
0.107 * * * * [progress]: [ 1 / 2 ] rewriting at (2)
0.119 * * * * [progress]: [ 2 / 2 ] rewriting at (2 2)
0.128 * * * [progress]: generating series expansions
0.128 * * * * [progress]: [ 1 / 2 ] generating series at (2)
0.128 * [approximate]: Taking taylor expansion of (/ (* (+ x y) (- x y)) (+ (pow x 2) (pow y 2))) in (x y) around 0
0.128 * [taylor]: Taking taylor expansion of (/ (* (+ x y) (- x y)) (+ (pow x 2) (pow y 2))) in y
0.128 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in y
0.128 * [taylor]: Taking taylor expansion of (+ x y) in y
0.128 * [taylor]: Taking taylor expansion of x in y
0.128 * [taylor]: Taking taylor expansion of y in y
0.128 * [taylor]: Taking taylor expansion of (- x y) in y
0.128 * [taylor]: Taking taylor expansion of x in y
0.128 * [taylor]: Taking taylor expansion of y in y
0.128 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in y
0.128 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.128 * [taylor]: Taking taylor expansion of x in y
0.128 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.128 * [taylor]: Taking taylor expansion of y in y
0.129 * [taylor]: Taking taylor expansion of (/ (* (+ x y) (- x y)) (+ (pow x 2) (pow y 2))) in x
0.129 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
0.129 * [taylor]: Taking taylor expansion of (+ x y) in x
0.129 * [taylor]: Taking taylor expansion of x in x
0.129 * [taylor]: Taking taylor expansion of y in x
0.129 * [taylor]: Taking taylor expansion of (- x y) in x
0.129 * [taylor]: Taking taylor expansion of x in x
0.129 * [taylor]: Taking taylor expansion of y in x
0.129 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in x
0.129 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.129 * [taylor]: Taking taylor expansion of x in x
0.129 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.129 * [taylor]: Taking taylor expansion of y in x
0.129 * [taylor]: Taking taylor expansion of (/ (* (+ x y) (- x y)) (+ (pow x 2) (pow y 2))) in x
0.129 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
0.129 * [taylor]: Taking taylor expansion of (+ x y) in x
0.129 * [taylor]: Taking taylor expansion of x in x
0.129 * [taylor]: Taking taylor expansion of y in x
0.129 * [taylor]: Taking taylor expansion of (- x y) in x
0.129 * [taylor]: Taking taylor expansion of x in x
0.129 * [taylor]: Taking taylor expansion of y in x
0.129 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in x
0.129 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.129 * [taylor]: Taking taylor expansion of x in x
0.129 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.129 * [taylor]: Taking taylor expansion of y in x
0.129 * [taylor]: Taking taylor expansion of -1 in y
0.130 * [taylor]: Taking taylor expansion of 0 in y
0.130 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
0.130 * [taylor]: Taking taylor expansion of 2 in y
0.130 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.130 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.130 * [taylor]: Taking taylor expansion of y in y
0.131 * [taylor]: Taking taylor expansion of 0 in y
0.131 * [approximate]: Taking taylor expansion of (/ (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in (x y) around 0
0.131 * [taylor]: Taking taylor expansion of (/ (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in y
0.131 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in y
0.131 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
0.131 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.131 * [taylor]: Taking taylor expansion of x in y
0.131 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.131 * [taylor]: Taking taylor expansion of y in y
0.131 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
0.131 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.131 * [taylor]: Taking taylor expansion of y in y
0.131 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.131 * [taylor]: Taking taylor expansion of x in y
0.131 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.131 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.131 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.131 * [taylor]: Taking taylor expansion of x in y
0.131 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.131 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.131 * [taylor]: Taking taylor expansion of y in y
0.132 * [taylor]: Taking taylor expansion of (/ (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
0.132 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in x
0.132 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.132 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.132 * [taylor]: Taking taylor expansion of x in x
0.132 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.132 * [taylor]: Taking taylor expansion of y in x
0.132 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.132 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.132 * [taylor]: Taking taylor expansion of y in x
0.132 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.132 * [taylor]: Taking taylor expansion of x in x
0.132 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.132 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.132 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.132 * [taylor]: Taking taylor expansion of x in x
0.132 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.132 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.132 * [taylor]: Taking taylor expansion of y in x
0.132 * [taylor]: Taking taylor expansion of (/ (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
0.132 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in x
0.132 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.132 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.132 * [taylor]: Taking taylor expansion of x in x
0.132 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.132 * [taylor]: Taking taylor expansion of y in x
0.132 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.132 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.132 * [taylor]: Taking taylor expansion of y in x
0.132 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.132 * [taylor]: Taking taylor expansion of x in x
0.132 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.132 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.132 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.132 * [taylor]: Taking taylor expansion of x in x
0.132 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.132 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.132 * [taylor]: Taking taylor expansion of y in x
0.133 * [taylor]: Taking taylor expansion of 1 in y
0.133 * [taylor]: Taking taylor expansion of 0 in y
0.133 * [taylor]: Taking taylor expansion of (neg (* 2 (/ 1 (pow y 2)))) in y
0.133 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
0.133 * [taylor]: Taking taylor expansion of 2 in y
0.133 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.134 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.134 * [taylor]: Taking taylor expansion of y in y
0.135 * [taylor]: Taking taylor expansion of 0 in y
0.135 * [approximate]: Taking taylor expansion of (* -1 (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))))) in (x y) around 0
0.135 * [taylor]: Taking taylor expansion of (* -1 (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))))) in y
0.135 * [taylor]: Taking taylor expansion of -1 in y
0.135 * [taylor]: Taking taylor expansion of (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in y
0.135 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in y
0.135 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
0.135 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.135 * [taylor]: Taking taylor expansion of y in y
0.135 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.135 * [taylor]: Taking taylor expansion of x in y
0.135 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
0.135 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.135 * [taylor]: Taking taylor expansion of y in y
0.135 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.135 * [taylor]: Taking taylor expansion of x in y
0.135 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.135 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.135 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.135 * [taylor]: Taking taylor expansion of x in y
0.136 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.136 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.136 * [taylor]: Taking taylor expansion of y in y
0.136 * [taylor]: Taking taylor expansion of (* -1 (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))))) in x
0.136 * [taylor]: Taking taylor expansion of -1 in x
0.136 * [taylor]: Taking taylor expansion of (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
0.136 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in x
0.136 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.136 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.136 * [taylor]: Taking taylor expansion of y in x
0.136 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.136 * [taylor]: Taking taylor expansion of x in x
0.136 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.136 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.136 * [taylor]: Taking taylor expansion of y in x
0.136 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.136 * [taylor]: Taking taylor expansion of x in x
0.136 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.136 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.136 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.136 * [taylor]: Taking taylor expansion of x in x
0.136 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.136 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.136 * [taylor]: Taking taylor expansion of y in x
0.136 * [taylor]: Taking taylor expansion of (* -1 (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))))) in x
0.136 * [taylor]: Taking taylor expansion of -1 in x
0.136 * [taylor]: Taking taylor expansion of (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
0.136 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in x
0.136 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.136 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.136 * [taylor]: Taking taylor expansion of y in x
0.136 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.136 * [taylor]: Taking taylor expansion of x in x
0.136 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.136 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.136 * [taylor]: Taking taylor expansion of y in x
0.137 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.137 * [taylor]: Taking taylor expansion of x in x
0.137 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.137 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.137 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.137 * [taylor]: Taking taylor expansion of x in x
0.137 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.137 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.137 * [taylor]: Taking taylor expansion of y in x
0.137 * [taylor]: Taking taylor expansion of 1 in y
0.137 * [taylor]: Taking taylor expansion of 0 in y
0.138 * [taylor]: Taking taylor expansion of (neg (* 2 (/ 1 (pow y 2)))) in y
0.138 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
0.138 * [taylor]: Taking taylor expansion of 2 in y
0.138 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.138 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.138 * [taylor]: Taking taylor expansion of y in y
0.139 * [taylor]: Taking taylor expansion of 0 in y
0.139 * * * * [progress]: [ 2 / 2 ] generating series at (2 2)
0.139 * [approximate]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in (x y) around 0
0.139 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in y
0.139 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.139 * [taylor]: Taking taylor expansion of x in y
0.139 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.139 * [taylor]: Taking taylor expansion of y in y
0.139 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in x
0.139 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.139 * [taylor]: Taking taylor expansion of x in x
0.139 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.139 * [taylor]: Taking taylor expansion of y in x
0.139 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in x
0.139 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.139 * [taylor]: Taking taylor expansion of x in x
0.139 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.139 * [taylor]: Taking taylor expansion of y in x
0.139 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.139 * [taylor]: Taking taylor expansion of y in y
0.140 * [taylor]: Taking taylor expansion of 0 in y
0.140 * [taylor]: Taking taylor expansion of 1 in y
0.140 * [taylor]: Taking taylor expansion of 0 in y
0.140 * [taylor]: Taking taylor expansion of 0 in y
0.140 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
0.140 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.140 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.140 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.140 * [taylor]: Taking taylor expansion of x in y
0.140 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.140 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.140 * [taylor]: Taking taylor expansion of y in y
0.140 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.140 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.140 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.141 * [taylor]: Taking taylor expansion of x in x
0.141 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.141 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.141 * [taylor]: Taking taylor expansion of y in x
0.141 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.141 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.141 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.141 * [taylor]: Taking taylor expansion of x in x
0.141 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.141 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.141 * [taylor]: Taking taylor expansion of y in x
0.141 * [taylor]: Taking taylor expansion of 1 in y
0.141 * [taylor]: Taking taylor expansion of 0 in y
0.141 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.141 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.141 * [taylor]: Taking taylor expansion of y in y
0.141 * [taylor]: Taking taylor expansion of 0 in y
0.142 * [taylor]: Taking taylor expansion of 0 in y
0.142 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
0.142 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.142 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.142 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.142 * [taylor]: Taking taylor expansion of x in y
0.142 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.142 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.143 * [taylor]: Taking taylor expansion of y in y
0.143 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.143 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.143 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.143 * [taylor]: Taking taylor expansion of x in x
0.143 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.143 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.143 * [taylor]: Taking taylor expansion of y in x
0.143 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.143 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.143 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.143 * [taylor]: Taking taylor expansion of x in x
0.143 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.143 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.143 * [taylor]: Taking taylor expansion of y in x
0.143 * [taylor]: Taking taylor expansion of 1 in y
0.143 * [taylor]: Taking taylor expansion of 0 in y
0.143 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.143 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.143 * [taylor]: Taking taylor expansion of y in y
0.144 * [taylor]: Taking taylor expansion of 0 in y
0.144 * [taylor]: Taking taylor expansion of 0 in y
0.145 * * * [progress]: simplifying candidates
0.145 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (+ (log (- x y)) (log (+ x y))) (log (+ (* x x) (* y y))))
  (- (log (* (- x y) (+ x y))) (log (+ (* x x) (* y y))))
  (log (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (exp (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (/ (* (* (* (- x y) (- x y)) (- x y)) (* (* (+ x y) (+ x y)) (+ x y))) (* (* (+ (* x x) (* y y)) (+ (* x x) (* y y))) (+ (* x x) (* y y))))
  (/ (* (* (* (- x y) (+ x y)) (* (- x y) (+ x y))) (* (- x y) (+ x y))) (* (* (+ (* x x) (* y y)) (+ (* x x) (* y y))) (+ (* x x) (* y y))))
  (* (cbrt (/ (* (- x y) (+ x y)) (+ (* x x) (* y y)))) (cbrt (/ (* (- x y) (+ x y)) (+ (* x x) (* y y)))))
  (cbrt (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (* (* (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y)))) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (sqrt (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (sqrt (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (neg (* (- x y) (+ x y)))
  (neg (+ (* x x) (* y y)))
  (/ (- x y) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (/ (+ x y) (cbrt (+ (* x x) (* y y))))
  (/ (- x y) (sqrt (+ (* x x) (* y y))))
  (/ (+ x y) (sqrt (+ (* x x) (* y y))))
  (/ (- x y) 1)
  (/ (+ x y) (+ (* x x) (* y y)))
  (/ 1 (+ (* x x) (* y y)))
  (/ (+ (* x x) (* y y)) (* (- x y) (+ x y)))
  (/ (* (- x y) (+ x y)) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (/ (* (- x y) (+ x y)) (sqrt (+ (* x x) (* y y))))
  (/ (* (- x y) (+ x y)) 1)
  (/ (+ (* x x) (* y y)) (+ x y))
  (/ (* (- x y) (+ x y)) (+ (pow (* x x) 3) (pow (* y y) 3)))
  (/ (* (- x y) (+ x y)) (- (* (* x x) (* x x)) (* (* y y) (* y y))))
  (* (+ (* x x) (* y y)) (* (+ (* x x) (+ (* y y) (* x y))) (+ (* x x) (- (* y y) (* x y)))))
  (* (+ (* x x) (* y y)) (* (+ (* x x) (+ (* y y) (* x y))) (- x y)))
  (* (+ (* x x) (* y y)) (* (+ x y) (+ (* x x) (- (* y y) (* x y)))))
  (* (+ (* x x) (* y y)) (* (+ x y) (- x y)))
  (* (+ (* x x) (* y y)) (+ (* x x) (- (* y y) (* x y))))
  (* (+ (* x x) (* y y)) (- x y))
  (* (+ (* x x) (* y y)) (+ (* x x) (+ (* y y) (* x y))))
  (* (+ (* x x) (* y y)) (+ x 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))))
  (- (* (* x x) (* x x)) (* (* y y) (* y y)))
  (- (* x x) (* y y))
  -1
  1
  1
  (+ (pow x 2) (pow y 2))
  (+ (pow x 2) (pow y 2))
  (+ (pow x 2) (pow y 2))
0.151 * * [simplify]: iteration  0 :  308  enodes  (cost  388 )
0.159 * * [simplify]: iteration  1 :  1848  enodes  (cost  330 )
0.191 * * [simplify]: iteration  2 :  5001  enodes  (cost  322 )
0.194 * [simplify]: Simplified to:
   (log (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (log (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (log (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (exp (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (pow (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))) 3)
  (pow (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))) 3)
  (* (cbrt (/ (* (- x y) (+ x y)) (+ (* x x) (* y y)))) (cbrt (/ (* (- x y) (+ x y)) (+ (* x x) (* y y)))))
  (cbrt (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (pow (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))) 3)
  (sqrt (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (sqrt (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (- (pow y 2) (pow x 2))
  (neg (+ (* x x) (* y y)))
  (/ (- x y) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (/ (+ x y) (cbrt (+ (* x x) (* y y))))
  (/ (- x y) (sqrt (+ (* x x) (* y y))))
  (/ (+ x y) (sqrt (+ (* x x) (* y y))))
  (- x y)
  (/ (+ x y) (+ (pow x 2) (pow y 2)))
  (/ 1 (+ (* x x) (* y y)))
  (/ (+ (* x x) (* y y)) (* (- x y) (+ x y)))
  (/ (* (- x y) (+ x y)) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (/ (* (- x y) (+ x y)) (sqrt (+ (* x x) (* y y))))
  (* (- x y) (+ x y))
  (/ (+ (pow x 2) (pow y 2)) (+ x y))
  (/ (* (- x y) (+ x y)) (+ (pow (* x x) 3) (pow (* y y) 3)))
  (/ 1 (+ (* x x) (* y y)))
  (* (* (+ (* y (- y x)) (pow x 2)) (+ (* y (+ y x)) (pow x 2))) (+ (* x x) (* y y)))
  (* (* (- x y) (+ (* y (+ y x)) (pow x 2))) (+ (* x x) (* y y)))
  (* (* (+ (* y (- y x)) (pow x 2)) (+ x y)) (+ (* x x) (* y y)))
  (+ (* (neg (pow y 3)) y) (pow x 4))
  (* (+ (* y (- y x)) (pow x 2)) (+ (* x x) (* y y)))
  (* (+ (* x x) (* y y)) (- x y))
  (* (+ (* y (+ y x)) (pow x 2)) (+ (* x x) (* y y)))
  (* (+ (* x x) (* y y)) (+ x y))
  (exp (+ (* x x) (* y y)))
  (log (+ (pow x 2) (pow y 2)))
  (exp (+ (* x x) (* y y)))
  (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y))))
  (cbrt (+ (* x x) (* y y)))
  (pow (+ (pow x 2) (pow y 2)) 3)
  (sqrt (+ (* x x) (* y y)))
  (sqrt (+ (* x x) (* y y)))
  (+ (pow (* x x) 3) (pow (* y y) 3))
  (- (pow y 4) (- (* (* x x) (* y y)) (pow x 4)))
  (+ (* (neg (pow y 3)) y) (pow x 4))
  (* (- x y) (+ x y))
  -1
  1
  1
  (+ (pow x 2) (pow y 2))
  (+ (pow x 2) (pow y 2))
  (+ (pow x 2) (pow y 2))
0.194 * * * [progress]: adding candidates to table
0.253 * * [progress]: iteration 2 / 4
0.253 * * * [progress]: picking best candidate
0.257 * * * * [pick]: Picked  #<alt (λ (x y) -1)>
0.257 * * * [progress]: localizing error
0.258 * * * [progress]: generating rewritten candidates
0.258 * * * [progress]: generating series expansions
0.258 * * * [progress]: simplifying candidates
0.258 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.260 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.260 * [simplify]: Simplified to:
   
0.260 * * * [progress]: adding candidates to table
0.261 * * [progress]: iteration 3 / 4
0.261 * * * [progress]: picking best candidate
0.263 * * * * [pick]: Picked  #<alt (λ (x y) 1)>
0.263 * * * [progress]: localizing error
0.263 * * * [progress]: generating rewritten candidates
0.263 * * * [progress]: generating series expansions
0.263 * * * [progress]: simplifying candidates
0.263 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.266 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.266 * [simplify]: Simplified to:
   
0.266 * * * [progress]: adding candidates to table
0.266 * [progress]: [Phase 3 of 3] Extracting.
0.266 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))> #<alt (λ (x y) -1)> #<alt (λ (x y) 1)>)
0.266 * * * [regime-changes]: Trying 3 branch expressions: ((/ (* (- x y) (+ x y)) (+ (* x x) (* y y))) y x)
0.267 * * * * [regimes]: Trying to branch on (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))) from (#<alt (λ (x y) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))> #<alt (λ (x y) -1)> #<alt (λ (x y) 1)>)
0.304 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))> #<alt (λ (x y) -1)> #<alt (λ (x y) 1)>)
0.372 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))> #<alt (λ (x y) -1)> #<alt (λ (x y) 1)>)
0.414 * * * [regime]: Found split indices: #<option (#s(si 1 40) #s(si 0 125) #s(si 1 134) #s(si 2 143) #s(si 1 151) #s(si 2 199) #s(si 1 208) #s(si 0 255))>
0.414 * [binary-search]: Improving bounds with binary search for y and (#<alt (λ (x y) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))> #<alt (λ (x y) -1)> #<alt (λ (x y) 1)>)
0.519 * [regimes]: Found splitpoints: (#s(sp 1 y -3.779239936099888e+140) #s(sp 0 y -1.6533473137290275e-160) #s(sp 1 y -4.748252844232197e-194) #s(sp 2 y -4.817886064006631e-217) #s(sp 1 y -4.167743124689291e-249) #s(sp 2 y 2.9821042112063788e-204) #s(sp 1 y 7.855831520293517e-170) #s(sp 0 y +nan.0)) , with alts (#<alt (λ (x y) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))> #<alt (λ (x y) -1)> #<alt (λ (x y) 1)>)
0.519 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (if (<= y -3.779239936099888e+140) -1 (if (<= y -1.6533473137290275e-160) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))) (if (<= y -4.748252844232197e-194) -1 (if (<= y -4.817886064006631e-217) 1 (if (<= y -4.167743124689291e-249) -1 (if (<= y 2.9821042112063788e-204) 1 (if (<= y 7.855831520293517e-170) -1 (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))))))))
0.520 * * [simplify]: iteration  0 :  37  enodes  (cost  14 )
0.521 * * [simplify]: iteration  1 :  37  enodes  (cost  14 )
0.521 * [simplify]: Simplified to:
   (if (<= y -3.779239936099888e+140) -1 (if (<= y -1.6533473137290275e-160) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))) (if (<= y -4.748252844232197e-194) -1 (if (<= y -4.817886064006631e-217) 1 (if (<= y -4.167743124689291e-249) -1 (if (<= y 2.9821042112063788e-204) 1 (if (<= y 7.855831520293517e-170) -1 (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))))))))
1.547 * [regime-testing]: End program error score: 6.8542925732736135
1.641 * [regime-testing]: Target error score: 0.06532677522460738