25.740 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.024 * * * [progress]: [2/2] Setting up program.
0.026 * [progress]: [Phase 2 of 3] Improving.
0.027 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (/ (* (- x y) (+ x y)) (+ (* x x) (* y y)))
0.027 * * [simplify]: iteration  0 :  9  enodes  (cost  15 )
0.029 * * [simplify]: iteration  1 :  22  enodes  (cost  15 )
0.032 * * [simplify]: iteration  2 :  47  enodes  (cost  15 )
0.038 * * [simplify]: iteration  3 :  86  enodes  (cost  15 )
0.053 * * [simplify]: iteration  4 :  166  enodes  (cost  15 )
0.089 * * [simplify]: iteration  5 :  291  enodes  (cost  15 )
0.168 * * [simplify]: iteration  6 :  520  enodes  (cost  15 )
0.380 * * [simplify]: iteration  7 :  879  enodes  (cost  15 )
1.824 * * [simplify]: iteration  8 :  2686  enodes  (cost  15 )
4.115 * * [simplify]: iteration  done :  5001  enodes  (cost  15 )
4.116 * [simplify]: Simplified to:
   (* (- x y) (/ (+ x y) (+ (* x x) (* y y))))
4.118 * * [progress]: iteration 1 / 4
4.118 * * * [progress]: picking best candidate
4.121 * * * * [pick]: Picked  #<alt (λ (x y) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))>
4.121 * * * [progress]: localizing error
4.129 * * * [progress]: generating rewritten candidates
4.129 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
4.142 * * * [progress]: generating series expansions
4.142 * * * * [progress]: [ 1 / 1 ] generating series at (2)
4.143 * [approximate]: Taking taylor expansion of (/ (* (+ x y) (- x y)) (+ (pow x 2) (pow y 2))) in (x y) around 0
4.143 * [taylor]: Taking taylor expansion of (/ (* (+ x y) (- x y)) (+ (pow x 2) (pow y 2))) in y
4.143 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in y
4.143 * [taylor]: Taking taylor expansion of (+ x y) in y
4.143 * [taylor]: Taking taylor expansion of x in y
4.143 * [taylor]: Taking taylor expansion of y in y
4.143 * [taylor]: Taking taylor expansion of (- x y) in y
4.143 * [taylor]: Taking taylor expansion of x in y
4.143 * [taylor]: Taking taylor expansion of y in y
4.143 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in y
4.143 * [taylor]: Taking taylor expansion of (pow x 2) in y
4.143 * [taylor]: Taking taylor expansion of x in y
4.143 * [taylor]: Taking taylor expansion of (pow y 2) in y
4.143 * [taylor]: Taking taylor expansion of y in y
4.144 * [taylor]: Taking taylor expansion of (/ (* (+ x y) (- x y)) (+ (pow x 2) (pow y 2))) in x
4.144 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
4.144 * [taylor]: Taking taylor expansion of (+ x y) in x
4.144 * [taylor]: Taking taylor expansion of x in x
4.144 * [taylor]: Taking taylor expansion of y in x
4.144 * [taylor]: Taking taylor expansion of (- x y) in x
4.144 * [taylor]: Taking taylor expansion of x in x
4.144 * [taylor]: Taking taylor expansion of y in x
4.144 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in x
4.144 * [taylor]: Taking taylor expansion of (pow x 2) in x
4.144 * [taylor]: Taking taylor expansion of x in x
4.144 * [taylor]: Taking taylor expansion of (pow y 2) in x
4.144 * [taylor]: Taking taylor expansion of y in x
4.144 * [taylor]: Taking taylor expansion of (/ (* (+ x y) (- x y)) (+ (pow x 2) (pow y 2))) in x
4.144 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
4.144 * [taylor]: Taking taylor expansion of (+ x y) in x
4.144 * [taylor]: Taking taylor expansion of x in x
4.144 * [taylor]: Taking taylor expansion of y in x
4.144 * [taylor]: Taking taylor expansion of (- x y) in x
4.144 * [taylor]: Taking taylor expansion of x in x
4.144 * [taylor]: Taking taylor expansion of y in x
4.144 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in x
4.144 * [taylor]: Taking taylor expansion of (pow x 2) in x
4.144 * [taylor]: Taking taylor expansion of x in x
4.144 * [taylor]: Taking taylor expansion of (pow y 2) in x
4.145 * [taylor]: Taking taylor expansion of y in x
4.145 * [taylor]: Taking taylor expansion of -1 in y
4.146 * [taylor]: Taking taylor expansion of 0 in y
4.148 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
4.149 * [taylor]: Taking taylor expansion of 2 in y
4.149 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
4.149 * [taylor]: Taking taylor expansion of (pow y 2) in y
4.149 * [taylor]: Taking taylor expansion of y in y
4.154 * [taylor]: Taking taylor expansion of 0 in y
4.155 * [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
4.155 * [taylor]: Taking taylor expansion of (/ (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in y
4.155 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in y
4.155 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
4.155 * [taylor]: Taking taylor expansion of (/ 1 x) in y
4.155 * [taylor]: Taking taylor expansion of x in y
4.155 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.155 * [taylor]: Taking taylor expansion of y in y
4.155 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
4.155 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.155 * [taylor]: Taking taylor expansion of y in y
4.156 * [taylor]: Taking taylor expansion of (/ 1 x) in y
4.156 * [taylor]: Taking taylor expansion of x in y
4.156 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
4.156 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
4.156 * [taylor]: Taking taylor expansion of (pow x 2) in y
4.156 * [taylor]: Taking taylor expansion of x in y
4.156 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
4.156 * [taylor]: Taking taylor expansion of (pow y 2) in y
4.156 * [taylor]: Taking taylor expansion of y in y
4.158 * [taylor]: Taking taylor expansion of (/ (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
4.158 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in x
4.158 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
4.158 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.158 * [taylor]: Taking taylor expansion of x in x
4.158 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.158 * [taylor]: Taking taylor expansion of y in x
4.158 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
4.158 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.158 * [taylor]: Taking taylor expansion of y in x
4.158 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.158 * [taylor]: Taking taylor expansion of x in x
4.158 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
4.158 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
4.159 * [taylor]: Taking taylor expansion of (pow x 2) in x
4.159 * [taylor]: Taking taylor expansion of x in x
4.159 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
4.159 * [taylor]: Taking taylor expansion of (pow y 2) in x
4.159 * [taylor]: Taking taylor expansion of y in x
4.165 * [taylor]: Taking taylor expansion of (/ (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
4.165 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in x
4.165 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
4.165 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.165 * [taylor]: Taking taylor expansion of x in x
4.166 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.166 * [taylor]: Taking taylor expansion of y in x
4.166 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
4.166 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.166 * [taylor]: Taking taylor expansion of y in x
4.166 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.166 * [taylor]: Taking taylor expansion of x in x
4.166 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
4.166 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
4.166 * [taylor]: Taking taylor expansion of (pow x 2) in x
4.166 * [taylor]: Taking taylor expansion of x in x
4.167 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
4.167 * [taylor]: Taking taylor expansion of (pow y 2) in x
4.167 * [taylor]: Taking taylor expansion of y in x
4.168 * [taylor]: Taking taylor expansion of 1 in y
4.171 * [taylor]: Taking taylor expansion of 0 in y
4.175 * [taylor]: Taking taylor expansion of (- (* 2 (/ 1 (pow y 2)))) in y
4.175 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
4.175 * [taylor]: Taking taylor expansion of 2 in y
4.175 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
4.175 * [taylor]: Taking taylor expansion of (pow y 2) in y
4.175 * [taylor]: Taking taylor expansion of y in y
4.183 * [taylor]: Taking taylor expansion of 0 in y
4.183 * [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
4.183 * [taylor]: Taking taylor expansion of (* -1 (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))))) in y
4.183 * [taylor]: Taking taylor expansion of -1 in y
4.183 * [taylor]: Taking taylor expansion of (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in y
4.183 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in y
4.183 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
4.184 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.184 * [taylor]: Taking taylor expansion of y in y
4.184 * [taylor]: Taking taylor expansion of (/ 1 x) in y
4.184 * [taylor]: Taking taylor expansion of x in y
4.184 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
4.184 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.184 * [taylor]: Taking taylor expansion of y in y
4.184 * [taylor]: Taking taylor expansion of (/ 1 x) in y
4.184 * [taylor]: Taking taylor expansion of x in y
4.184 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
4.184 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
4.184 * [taylor]: Taking taylor expansion of (pow x 2) in y
4.184 * [taylor]: Taking taylor expansion of x in y
4.184 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
4.184 * [taylor]: Taking taylor expansion of (pow y 2) in y
4.184 * [taylor]: Taking taylor expansion of y in y
4.186 * [taylor]: Taking taylor expansion of (* -1 (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))))) in x
4.186 * [taylor]: Taking taylor expansion of -1 in x
4.186 * [taylor]: Taking taylor expansion of (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
4.186 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in x
4.186 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
4.186 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.186 * [taylor]: Taking taylor expansion of y in x
4.186 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.186 * [taylor]: Taking taylor expansion of x in x
4.187 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
4.187 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.187 * [taylor]: Taking taylor expansion of y in x
4.187 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.187 * [taylor]: Taking taylor expansion of x in x
4.187 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
4.187 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
4.187 * [taylor]: Taking taylor expansion of (pow x 2) in x
4.187 * [taylor]: Taking taylor expansion of x in x
4.187 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
4.188 * [taylor]: Taking taylor expansion of (pow y 2) in x
4.188 * [taylor]: Taking taylor expansion of y in x
4.189 * [taylor]: Taking taylor expansion of (* -1 (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))))) in x
4.189 * [taylor]: Taking taylor expansion of -1 in x
4.189 * [taylor]: Taking taylor expansion of (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
4.189 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in x
4.189 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
4.189 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.189 * [taylor]: Taking taylor expansion of y in x
4.189 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.189 * [taylor]: Taking taylor expansion of x in x
4.190 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
4.190 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.190 * [taylor]: Taking taylor expansion of y in x
4.190 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.190 * [taylor]: Taking taylor expansion of x in x
4.190 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
4.190 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
4.190 * [taylor]: Taking taylor expansion of (pow x 2) in x
4.190 * [taylor]: Taking taylor expansion of x in x
4.190 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
4.190 * [taylor]: Taking taylor expansion of (pow y 2) in x
4.190 * [taylor]: Taking taylor expansion of y in x
4.192 * [taylor]: Taking taylor expansion of 1 in y
4.195 * [taylor]: Taking taylor expansion of 0 in y
4.200 * [taylor]: Taking taylor expansion of (- (* 2 (/ 1 (pow y 2)))) in y
4.200 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
4.200 * [taylor]: Taking taylor expansion of 2 in y
4.200 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
4.200 * [taylor]: Taking taylor expansion of (pow y 2) in y
4.200 * [taylor]: Taking taylor expansion of y in y
4.209 * [taylor]: Taking taylor expansion of 0 in y
4.209 * * * [progress]: simplifying candidates
4.210 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (+ (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))))
  (- (* (- x y) (+ x y)))
  (- (+ (* 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))
  -1
  1
  1
4.212 * * [simplify]: iteration  0 :  79  enodes  (cost  660 )
4.227 * * [simplify]: iteration  1 :  270  enodes  (cost  641 )
4.332 * * [simplify]: iteration  2 :  1133  enodes  (cost  539 )
4.925 * * [simplify]: iteration  done :  5001  enodes  (cost  539 )
4.925 * [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))))
  (- (* (- x y) (+ x y)))
  (- (+ (* 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) (+ (* 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 x) (* y y))
  (/ (+ (* x x) (* y y)) (+ x y))
  (/ (- (* x x) (* y y)) (+ (pow x 6) (pow y 6)))
  (/ (- x y) (/ (- (* x (pow x 3)) (* (pow y 3) y)) (+ x y)))
  (* (* (+ (* x x) (* y (- y x))) (+ (* x x) (* y (+ x y)))) (+ (* x x) (* y y)))
  (* (+ (* x x) (* y y)) (* (+ (* x x) (* y (+ x y))) (- x y)))
  (* (* (+ (* x x) (* y y)) (+ x y)) (+ (* x x) (* y (- y x))))
  (- (* x (pow x 3)) (* (pow y 3) y))
  (* (+ (* x x) (* y (- y x))) (+ (* x x) (* y y)))
  (* (+ (* x x) (* y y)) (- x y))
  (* (+ (* x x) (* y y)) (+ (* x x) (* y (+ x y))))
  (* (+ (* x x) (* y y)) (+ x y))
  -1
  1
  1
4.926 * * * [progress]: adding candidates to table
5.003 * * [progress]: iteration 2 / 4
5.003 * * * [progress]: picking best candidate
5.006 * * * * [pick]: Picked  #<alt (λ (x y) -1)>
5.006 * * * [progress]: localizing error
5.006 * * * [progress]: generating rewritten candidates
5.006 * * * [progress]: generating series expansions
5.006 * * * [progress]: simplifying candidates
5.007 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   
5.007 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
5.007 * * [simplify]: iteration  done :  0  enodes  (cost  0 )
5.007 * [simplify]: Simplified to:
   
5.008 * * * [progress]: adding candidates to table
5.008 * * [progress]: iteration 3 / 4
5.008 * * * [progress]: picking best candidate
5.010 * * * * [pick]: Picked  #<alt (λ (x y) (/ (- x y) (/ (+ (* x x) (* y y)) (+ x y))))>
5.010 * * * [progress]: localizing error
5.018 * * * [progress]: generating rewritten candidates
5.018 * * * * [progress]: [ 1 / 2 ] rewriting at (2 2)
5.030 * * * * [progress]: [ 2 / 2 ] rewriting at (2)
5.059 * * * [progress]: generating series expansions
5.059 * * * * [progress]: [ 1 / 2 ] generating series at (2 2)
5.060 * [approximate]: Taking taylor expansion of (/ (+ (pow x 2) (pow y 2)) (+ x y)) in (x y) around 0
5.060 * [taylor]: Taking taylor expansion of (/ (+ (pow x 2) (pow y 2)) (+ x y)) in y
5.060 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in y
5.060 * [taylor]: Taking taylor expansion of (pow x 2) in y
5.060 * [taylor]: Taking taylor expansion of x in y
5.060 * [taylor]: Taking taylor expansion of (pow y 2) in y
5.060 * [taylor]: Taking taylor expansion of y in y
5.060 * [taylor]: Taking taylor expansion of (+ x y) in y
5.060 * [taylor]: Taking taylor expansion of x in y
5.060 * [taylor]: Taking taylor expansion of y in y
5.060 * [taylor]: Taking taylor expansion of (/ (+ (pow x 2) (pow y 2)) (+ x y)) in x
5.060 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in x
5.060 * [taylor]: Taking taylor expansion of (pow x 2) in x
5.060 * [taylor]: Taking taylor expansion of x in x
5.060 * [taylor]: Taking taylor expansion of (pow y 2) in x
5.060 * [taylor]: Taking taylor expansion of y in x
5.060 * [taylor]: Taking taylor expansion of (+ x y) in x
5.060 * [taylor]: Taking taylor expansion of x in x
5.060 * [taylor]: Taking taylor expansion of y in x
5.061 * [taylor]: Taking taylor expansion of (/ (+ (pow x 2) (pow y 2)) (+ x y)) in x
5.061 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in x
5.061 * [taylor]: Taking taylor expansion of (pow x 2) in x
5.061 * [taylor]: Taking taylor expansion of x in x
5.061 * [taylor]: Taking taylor expansion of (pow y 2) in x
5.061 * [taylor]: Taking taylor expansion of y in x
5.061 * [taylor]: Taking taylor expansion of (+ x y) in x
5.061 * [taylor]: Taking taylor expansion of x in x
5.061 * [taylor]: Taking taylor expansion of y in x
5.061 * [taylor]: Taking taylor expansion of y in y
5.062 * [taylor]: Taking taylor expansion of (- 1) in y
5.062 * [taylor]: Taking taylor expansion of 1 in y
5.063 * [taylor]: Taking taylor expansion of (* 2 (/ 1 y)) in y
5.063 * [taylor]: Taking taylor expansion of 2 in y
5.063 * [taylor]: Taking taylor expansion of (/ 1 y) in y
5.063 * [taylor]: Taking taylor expansion of y in y
5.066 * [taylor]: Taking taylor expansion of (- (* 2 (/ 1 (pow y 2)))) in y
5.067 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
5.067 * [taylor]: Taking taylor expansion of 2 in y
5.067 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
5.067 * [taylor]: Taking taylor expansion of (pow y 2) in y
5.067 * [taylor]: Taking taylor expansion of y in y
5.071 * [approximate]: Taking taylor expansion of (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x))) in (x y) around 0
5.071 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x))) in y
5.071 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
5.071 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
5.071 * [taylor]: Taking taylor expansion of (pow x 2) in y
5.071 * [taylor]: Taking taylor expansion of x in y
5.072 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
5.072 * [taylor]: Taking taylor expansion of (pow y 2) in y
5.072 * [taylor]: Taking taylor expansion of y in y
5.072 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
5.073 * [taylor]: Taking taylor expansion of (/ 1 y) in y
5.073 * [taylor]: Taking taylor expansion of y in y
5.073 * [taylor]: Taking taylor expansion of (/ 1 x) in y
5.073 * [taylor]: Taking taylor expansion of x in y
5.074 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x))) in x
5.074 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
5.074 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
5.074 * [taylor]: Taking taylor expansion of (pow x 2) in x
5.074 * [taylor]: Taking taylor expansion of x in x
5.074 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
5.074 * [taylor]: Taking taylor expansion of (pow y 2) in x
5.074 * [taylor]: Taking taylor expansion of y in x
5.074 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
5.074 * [taylor]: Taking taylor expansion of (/ 1 y) in x
5.074 * [taylor]: Taking taylor expansion of y in x
5.074 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.074 * [taylor]: Taking taylor expansion of x in x
5.075 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x))) in x
5.075 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
5.075 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
5.075 * [taylor]: Taking taylor expansion of (pow x 2) in x
5.076 * [taylor]: Taking taylor expansion of x in x
5.076 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
5.076 * [taylor]: Taking taylor expansion of (pow y 2) in x
5.076 * [taylor]: Taking taylor expansion of y in x
5.076 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
5.076 * [taylor]: Taking taylor expansion of (/ 1 y) in x
5.076 * [taylor]: Taking taylor expansion of y in x
5.076 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.076 * [taylor]: Taking taylor expansion of x in x
5.077 * [taylor]: Taking taylor expansion of 1 in y
5.079 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in y
5.079 * [taylor]: Taking taylor expansion of (/ 1 y) in y
5.079 * [taylor]: Taking taylor expansion of y in y
5.082 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
5.082 * [taylor]: Taking taylor expansion of 2 in y
5.082 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
5.082 * [taylor]: Taking taylor expansion of (pow y 2) in y
5.082 * [taylor]: Taking taylor expansion of y in y
5.088 * [taylor]: Taking taylor expansion of (- (* 2 (/ 1 (pow y 3)))) in y
5.088 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 3))) in y
5.088 * [taylor]: Taking taylor expansion of 2 in y
5.088 * [taylor]: Taking taylor expansion of (/ 1 (pow y 3)) in y
5.088 * [taylor]: Taking taylor expansion of (pow y 3) in y
5.088 * [taylor]: Taking taylor expansion of y in y
5.094 * [approximate]: Taking taylor expansion of (* -1 (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x)))) in (x y) around 0
5.094 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x)))) in y
5.094 * [taylor]: Taking taylor expansion of -1 in y
5.094 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x))) in y
5.095 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
5.095 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
5.095 * [taylor]: Taking taylor expansion of (pow x 2) in y
5.095 * [taylor]: Taking taylor expansion of x in y
5.095 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
5.095 * [taylor]: Taking taylor expansion of (pow y 2) in y
5.095 * [taylor]: Taking taylor expansion of y in y
5.095 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
5.095 * [taylor]: Taking taylor expansion of (/ 1 y) in y
5.095 * [taylor]: Taking taylor expansion of y in y
5.096 * [taylor]: Taking taylor expansion of (/ 1 x) in y
5.096 * [taylor]: Taking taylor expansion of x in y
5.096 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x)))) in x
5.096 * [taylor]: Taking taylor expansion of -1 in x
5.096 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x))) in x
5.096 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
5.096 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
5.096 * [taylor]: Taking taylor expansion of (pow x 2) in x
5.096 * [taylor]: Taking taylor expansion of x in x
5.097 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
5.097 * [taylor]: Taking taylor expansion of (pow y 2) in x
5.097 * [taylor]: Taking taylor expansion of y in x
5.097 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
5.097 * [taylor]: Taking taylor expansion of (/ 1 y) in x
5.097 * [taylor]: Taking taylor expansion of y in x
5.097 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.097 * [taylor]: Taking taylor expansion of x in x
5.098 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x)))) in x
5.098 * [taylor]: Taking taylor expansion of -1 in x
5.098 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x))) in x
5.098 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
5.098 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
5.098 * [taylor]: Taking taylor expansion of (pow x 2) in x
5.098 * [taylor]: Taking taylor expansion of x in x
5.099 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
5.099 * [taylor]: Taking taylor expansion of (pow y 2) in x
5.099 * [taylor]: Taking taylor expansion of y in x
5.099 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
5.099 * [taylor]: Taking taylor expansion of (/ 1 y) in x
5.099 * [taylor]: Taking taylor expansion of y in x
5.099 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.099 * [taylor]: Taking taylor expansion of x in x
5.100 * [taylor]: Taking taylor expansion of -1 in y
5.103 * [taylor]: Taking taylor expansion of (/ 1 y) in y
5.103 * [taylor]: Taking taylor expansion of y in y
5.106 * [taylor]: Taking taylor expansion of (- (* 2 (/ 1 (pow y 2)))) in y
5.106 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
5.106 * [taylor]: Taking taylor expansion of 2 in y
5.106 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
5.106 * [taylor]: Taking taylor expansion of (pow y 2) in y
5.106 * [taylor]: Taking taylor expansion of y in y
5.113 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 3))) in y
5.113 * [taylor]: Taking taylor expansion of 2 in y
5.113 * [taylor]: Taking taylor expansion of (/ 1 (pow y 3)) in y
5.113 * [taylor]: Taking taylor expansion of (pow y 3) in y
5.113 * [taylor]: Taking taylor expansion of y in y
5.119 * * * * [progress]: [ 2 / 2 ] generating series at (2)
5.119 * [approximate]: Taking taylor expansion of (/ (* (+ x y) (- x y)) (+ (pow x 2) (pow y 2))) in (x y) around 0
5.119 * [taylor]: Taking taylor expansion of (/ (* (+ x y) (- x y)) (+ (pow x 2) (pow y 2))) in y
5.119 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in y
5.119 * [taylor]: Taking taylor expansion of (+ x y) in y
5.119 * [taylor]: Taking taylor expansion of x in y
5.119 * [taylor]: Taking taylor expansion of y in y
5.119 * [taylor]: Taking taylor expansion of (- x y) in y
5.119 * [taylor]: Taking taylor expansion of x in y
5.119 * [taylor]: Taking taylor expansion of y in y
5.119 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in y
5.119 * [taylor]: Taking taylor expansion of (pow x 2) in y
5.119 * [taylor]: Taking taylor expansion of x in y
5.120 * [taylor]: Taking taylor expansion of (pow y 2) in y
5.120 * [taylor]: Taking taylor expansion of y in y
5.120 * [taylor]: Taking taylor expansion of (/ (* (+ x y) (- x y)) (+ (pow x 2) (pow y 2))) in x
5.120 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
5.120 * [taylor]: Taking taylor expansion of (+ x y) in x
5.120 * [taylor]: Taking taylor expansion of x in x
5.120 * [taylor]: Taking taylor expansion of y in x
5.120 * [taylor]: Taking taylor expansion of (- x y) in x
5.120 * [taylor]: Taking taylor expansion of x in x
5.120 * [taylor]: Taking taylor expansion of y in x
5.120 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in x
5.120 * [taylor]: Taking taylor expansion of (pow x 2) in x
5.120 * [taylor]: Taking taylor expansion of x in x
5.120 * [taylor]: Taking taylor expansion of (pow y 2) in x
5.120 * [taylor]: Taking taylor expansion of y in x
5.121 * [taylor]: Taking taylor expansion of (/ (* (+ x y) (- x y)) (+ (pow x 2) (pow y 2))) in x
5.121 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
5.121 * [taylor]: Taking taylor expansion of (+ x y) in x
5.121 * [taylor]: Taking taylor expansion of x in x
5.121 * [taylor]: Taking taylor expansion of y in x
5.121 * [taylor]: Taking taylor expansion of (- x y) in x
5.121 * [taylor]: Taking taylor expansion of x in x
5.121 * [taylor]: Taking taylor expansion of y in x
5.121 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in x
5.121 * [taylor]: Taking taylor expansion of (pow x 2) in x
5.121 * [taylor]: Taking taylor expansion of x in x
5.121 * [taylor]: Taking taylor expansion of (pow y 2) in x
5.121 * [taylor]: Taking taylor expansion of y in x
5.121 * [taylor]: Taking taylor expansion of -1 in y
5.122 * [taylor]: Taking taylor expansion of 0 in y
5.124 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
5.124 * [taylor]: Taking taylor expansion of 2 in y
5.124 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
5.124 * [taylor]: Taking taylor expansion of (pow y 2) in y
5.124 * [taylor]: Taking taylor expansion of y in y
5.134 * [taylor]: Taking taylor expansion of 0 in y
5.134 * [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
5.134 * [taylor]: Taking taylor expansion of (/ (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in y
5.134 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in y
5.134 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
5.134 * [taylor]: Taking taylor expansion of (/ 1 x) in y
5.134 * [taylor]: Taking taylor expansion of x in y
5.134 * [taylor]: Taking taylor expansion of (/ 1 y) in y
5.134 * [taylor]: Taking taylor expansion of y in y
5.134 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
5.135 * [taylor]: Taking taylor expansion of (/ 1 y) in y
5.135 * [taylor]: Taking taylor expansion of y in y
5.135 * [taylor]: Taking taylor expansion of (/ 1 x) in y
5.135 * [taylor]: Taking taylor expansion of x in y
5.135 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
5.135 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
5.135 * [taylor]: Taking taylor expansion of (pow x 2) in y
5.135 * [taylor]: Taking taylor expansion of x in y
5.135 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
5.135 * [taylor]: Taking taylor expansion of (pow y 2) in y
5.135 * [taylor]: Taking taylor expansion of y in y
5.137 * [taylor]: Taking taylor expansion of (/ (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
5.137 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in x
5.137 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
5.137 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.137 * [taylor]: Taking taylor expansion of x in x
5.137 * [taylor]: Taking taylor expansion of (/ 1 y) in x
5.137 * [taylor]: Taking taylor expansion of y in x
5.137 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
5.137 * [taylor]: Taking taylor expansion of (/ 1 y) in x
5.137 * [taylor]: Taking taylor expansion of y in x
5.137 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.137 * [taylor]: Taking taylor expansion of x in x
5.138 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
5.138 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
5.138 * [taylor]: Taking taylor expansion of (pow x 2) in x
5.138 * [taylor]: Taking taylor expansion of x in x
5.138 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
5.138 * [taylor]: Taking taylor expansion of (pow y 2) in x
5.138 * [taylor]: Taking taylor expansion of y in x
5.140 * [taylor]: Taking taylor expansion of (/ (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
5.140 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in x
5.140 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
5.140 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.140 * [taylor]: Taking taylor expansion of x in x
5.140 * [taylor]: Taking taylor expansion of (/ 1 y) in x
5.140 * [taylor]: Taking taylor expansion of y in x
5.140 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
5.140 * [taylor]: Taking taylor expansion of (/ 1 y) in x
5.140 * [taylor]: Taking taylor expansion of y in x
5.140 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.140 * [taylor]: Taking taylor expansion of x in x
5.140 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
5.140 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
5.140 * [taylor]: Taking taylor expansion of (pow x 2) in x
5.140 * [taylor]: Taking taylor expansion of x in x
5.141 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
5.141 * [taylor]: Taking taylor expansion of (pow y 2) in x
5.141 * [taylor]: Taking taylor expansion of y in x
5.142 * [taylor]: Taking taylor expansion of 1 in y
5.145 * [taylor]: Taking taylor expansion of 0 in y
5.149 * [taylor]: Taking taylor expansion of (- (* 2 (/ 1 (pow y 2)))) in y
5.149 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
5.149 * [taylor]: Taking taylor expansion of 2 in y
5.149 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
5.149 * [taylor]: Taking taylor expansion of (pow y 2) in y
5.149 * [taylor]: Taking taylor expansion of y in y
5.157 * [taylor]: Taking taylor expansion of 0 in y
5.157 * [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
5.157 * [taylor]: Taking taylor expansion of (* -1 (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))))) in y
5.157 * [taylor]: Taking taylor expansion of -1 in y
5.157 * [taylor]: Taking taylor expansion of (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in y
5.157 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in y
5.157 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
5.157 * [taylor]: Taking taylor expansion of (/ 1 y) in y
5.157 * [taylor]: Taking taylor expansion of y in y
5.158 * [taylor]: Taking taylor expansion of (/ 1 x) in y
5.158 * [taylor]: Taking taylor expansion of x in y
5.158 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
5.158 * [taylor]: Taking taylor expansion of (/ 1 y) in y
5.158 * [taylor]: Taking taylor expansion of y in y
5.158 * [taylor]: Taking taylor expansion of (/ 1 x) in y
5.158 * [taylor]: Taking taylor expansion of x in y
5.158 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
5.158 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
5.158 * [taylor]: Taking taylor expansion of (pow x 2) in y
5.158 * [taylor]: Taking taylor expansion of x in y
5.158 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
5.158 * [taylor]: Taking taylor expansion of (pow y 2) in y
5.158 * [taylor]: Taking taylor expansion of y in y
5.160 * [taylor]: Taking taylor expansion of (* -1 (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))))) in x
5.160 * [taylor]: Taking taylor expansion of -1 in x
5.160 * [taylor]: Taking taylor expansion of (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
5.160 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in x
5.160 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
5.160 * [taylor]: Taking taylor expansion of (/ 1 y) in x
5.160 * [taylor]: Taking taylor expansion of y in x
5.160 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.160 * [taylor]: Taking taylor expansion of x in x
5.161 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
5.161 * [taylor]: Taking taylor expansion of (/ 1 y) in x
5.161 * [taylor]: Taking taylor expansion of y in x
5.161 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.161 * [taylor]: Taking taylor expansion of x in x
5.161 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
5.161 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
5.161 * [taylor]: Taking taylor expansion of (pow x 2) in x
5.161 * [taylor]: Taking taylor expansion of x in x
5.162 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
5.162 * [taylor]: Taking taylor expansion of (pow y 2) in x
5.162 * [taylor]: Taking taylor expansion of y in x
5.164 * [taylor]: Taking taylor expansion of (* -1 (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))))) in x
5.164 * [taylor]: Taking taylor expansion of -1 in x
5.164 * [taylor]: Taking taylor expansion of (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
5.164 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in x
5.164 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
5.164 * [taylor]: Taking taylor expansion of (/ 1 y) in x
5.164 * [taylor]: Taking taylor expansion of y in x
5.164 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.164 * [taylor]: Taking taylor expansion of x in x
5.164 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
5.164 * [taylor]: Taking taylor expansion of (/ 1 y) in x
5.164 * [taylor]: Taking taylor expansion of y in x
5.164 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.164 * [taylor]: Taking taylor expansion of x in x
5.165 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
5.165 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
5.165 * [taylor]: Taking taylor expansion of (pow x 2) in x
5.165 * [taylor]: Taking taylor expansion of x in x
5.165 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
5.165 * [taylor]: Taking taylor expansion of (pow y 2) in x
5.165 * [taylor]: Taking taylor expansion of y in x
5.167 * [taylor]: Taking taylor expansion of 1 in y
5.170 * [taylor]: Taking taylor expansion of 0 in y
5.175 * [taylor]: Taking taylor expansion of (- (* 2 (/ 1 (pow y 2)))) in y
5.175 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
5.175 * [taylor]: Taking taylor expansion of 2 in y
5.175 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
5.175 * [taylor]: Taking taylor expansion of (pow y 2) in y
5.175 * [taylor]: Taking taylor expansion of y in y
5.184 * [taylor]: Taking taylor expansion of 0 in y
5.184 * * * [progress]: simplifying candidates
5.187 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (log (+ (* x x) (* y y))) (log (+ x y)))
  (log (/ (+ (* x x) (* y y)) (+ x y)))
  (exp (/ (+ (* x x) (* y y)) (+ x y)))
  (/ (* (* (+ (* x x) (* y y)) (+ (* x x) (* y y))) (+ (* x x) (* y y))) (* (* (+ x y) (+ x y)) (+ x y)))
  (* (cbrt (/ (+ (* x x) (* y y)) (+ x y))) (cbrt (/ (+ (* x x) (* y y)) (+ x y))))
  (cbrt (/ (+ (* x x) (* y y)) (+ x y)))
  (* (* (/ (+ (* x x) (* y y)) (+ x y)) (/ (+ (* x x) (* y y)) (+ x y))) (/ (+ (* x x) (* y y)) (+ x y)))
  (sqrt (/ (+ (* x x) (* y y)) (+ x y)))
  (sqrt (/ (+ (* x x) (* y y)) (+ x y)))
  (- (+ (* x x) (* y y)))
  (- (+ x y))
  (/ (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))) (* (cbrt (+ x y)) (cbrt (+ x y))))
  (/ (cbrt (+ (* x x) (* y y))) (cbrt (+ x y)))
  (/ (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))) (sqrt (+ x y)))
  (/ (cbrt (+ (* x x) (* y y))) (sqrt (+ x y)))
  (/ (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))) 1)
  (/ (cbrt (+ (* x x) (* y y))) (+ x y))
  (/ (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))) 1)
  (/ (cbrt (+ (* x x) (* y y))) (+ x y))
  (/ (sqrt (+ (* x x) (* y y))) (* (cbrt (+ x y)) (cbrt (+ x y))))
  (/ (sqrt (+ (* x x) (* y y))) (cbrt (+ x y)))
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  (/ (* (cbrt (- x y)) (cbrt (- x y))) (/ (sqrt (+ (* x x) (* y y))) (sqrt (+ x y))))
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  (/ 1 1)
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  (/ 1 (+ (* x x) (* y y)))
  (/ (- x y) (/ 1 (+ x y)))
  (/ 1 (/ (+ (* x x) (* y y)) (+ (pow x 3) (pow y 3))))
  (/ (- x y) (+ (* x x) (- (* y y) (* x y))))
  (/ 1 (/ (+ (* x x) (* y y)) (- (* x x) (* y y))))
  (/ (- x y) (- x y))
  (/ 1 (/ (+ (* x x) (* y y)) (+ x y)))
  (/ (/ (+ (* x x) (* y y)) (+ x y)) (- x y))
  (/ (- x y) (* (cbrt (/ (+ (* x x) (* y y)) (+ x y))) (cbrt (/ (+ (* x x) (* y y)) (+ x y)))))
  (/ (- x y) (sqrt (/ (+ (* x x) (* y y)) (+ x y))))
  (/ (- x y) (/ (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))) (* (cbrt (+ x y)) (cbrt (+ x y)))))
  (/ (- x y) (/ (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))) (sqrt (+ x y))))
  (/ (- x y) (/ (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))) 1))
  (/ (- x y) (/ (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))) 1))
  (/ (- x y) (/ (sqrt (+ (* x x) (* y y))) (* (cbrt (+ x y)) (cbrt (+ x y)))))
  (/ (- x y) (/ (sqrt (+ (* x x) (* y y))) (sqrt (+ x y))))
  (/ (- x y) (/ (sqrt (+ (* x x) (* y y))) 1))
  (/ (- x y) (/ (sqrt (+ (* x x) (* y y))) 1))
  (/ (- x y) (/ 1 (* (cbrt (+ x y)) (cbrt (+ x y)))))
  (/ (- x y) (/ 1 (sqrt (+ x y))))
  (/ (- x y) (/ 1 1))
  (/ (- x y) (/ 1 1))
  (/ (- x y) 1)
  (/ (- x y) (+ (* x x) (* y y)))
  (/ (- x y) (/ (+ (* x x) (* y y)) (+ (pow x 3) (pow y 3))))
  (/ (- x y) (/ (+ (* x x) (* y y)) (- (* x x) (* y y))))
  (/ (/ (+ (* x x) (* y y)) (+ x y)) (cbrt (- x y)))
  (/ (/ (+ (* x x) (* y y)) (+ x y)) (sqrt (- x y)))
  (/ (/ (+ (* x x) (* y y)) (+ x y)) (- x y))
  (/ (/ (+ (* x x) (* y y)) (+ x y)) (- (sqrt x) (sqrt y)))
  (/ (/ (+ (* x x) (* y y)) (+ x 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 y)) (+ x y))
  (- y x)
  (- x y)
  (- x y)
  -1
  1
  1
5.196 * * [simplify]: iteration  0 :  233  enodes  (cost  4522 )
5.255 * * [simplify]: iteration  1 :  674  enodes  (cost  4326 )
5.520 * * [simplify]: iteration  2 :  2294  enodes  (cost  4170 )
6.109 * * [simplify]: iteration  done :  5000  enodes  (cost  4166 )
6.110 * [simplify]: Simplified to:
   (log (/ (+ (* x x) (* y y)) (+ x y)))
  (log (/ (+ (* x x) (* y y)) (+ x y)))
  (exp (/ (+ (* x x) (* y y)) (+ x y)))
  (pow (/ (+ (* x x) (* y y)) (+ x y)) 3)
  (* (cbrt (/ (+ (* x x) (* y y)) (+ x y))) (cbrt (/ (+ (* x x) (* y y)) (+ x y))))
  (cbrt (/ (+ (* x x) (* y y)) (+ x y)))
  (pow (/ (+ (* x x) (* y y)) (+ x y)) 3)
  (sqrt (/ (+ (* x x) (* y y)) (+ x y)))
  (sqrt (/ (+ (* x x) (* y y)) (+ x y)))
  (- (+ (* x x) (* y y)))
  (- (+ x y))
  (/ (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))) (* (cbrt (+ x y)) (cbrt (+ x y))))
  (/ (cbrt (+ (* x x) (* y y))) (cbrt (+ x y)))
  (/ (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))) (sqrt (+ x y)))
  (/ (cbrt (+ (* x x) (* y y))) (sqrt (+ x y)))
  (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y))))
  (/ (cbrt (+ (* x x) (* y y))) (+ x y))
  (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y))))
  (/ (cbrt (+ (* x x) (* y y))) (+ x y))
  (/ (sqrt (+ (* x x) (* y y))) (* (cbrt (+ x y)) (cbrt (+ x y))))
  (/ (sqrt (+ (* x x) (* y y))) (cbrt (+ x y)))
  (/ (sqrt (+ (* x x) (* y y))) (sqrt (+ x y)))
  (/ (sqrt (+ (* x x) (* y y))) (sqrt (+ x y)))
  (sqrt (+ (* x x) (* y y)))
  (/ (sqrt (+ (* x x) (* y y))) (+ x y))
  (sqrt (+ (* x x) (* y y)))
  (/ (sqrt (+ (* x x) (* y y))) (+ x y))
  (/ (/ 1 (cbrt (+ x y))) (cbrt (+ x y)))
  (/ (+ (* x x) (* y y)) (cbrt (+ x y)))
  (/ 1 (sqrt (+ x y)))
  (/ (+ (* y y) (* x x)) (sqrt (+ x y)))
  1
  (/ (+ (* x x) (* y y)) (+ x y))
  1
  (/ (+ (* x x) (* y y)) (+ x y))
  (/ 1 (+ x y))
  (/ (+ x y) (+ (* x x) (* y y)))
  (/ (+ (* x x) (* y y)) (* (cbrt (+ x y)) (cbrt (+ x y))))
  (/ (+ (* y y) (* x x)) (sqrt (+ x y)))
  (+ (* y y) (* x x))
  (+ (* y y) (* x x))
  (/ (+ x y) (cbrt (+ (* x x) (* y y))))
  (/ (+ x y) (sqrt (+ (* x x) (* y y))))
  (/ (+ x y) (+ (* x x) (* y y)))
  (/ (+ (* x x) (* y y)) (+ (pow x 3) (pow y 3)))
  (/ (+ (* x x) (* y y)) (- (* x x) (* y y)))
  (* (+ x y) (+ (* (* y y) (- (* y y) (* x x))) (pow x 4)))
  (* (+ x y) (- (* x x) (* y y)))
  (log (/ (- x y) (/ (+ (* x x) (* y y)) (+ x y))))
  (log (/ (- x y) (/ (+ (* x x) (* y y)) (+ x y))))
  (log (/ (- x y) (/ (+ (* x x) (* y y)) (+ x y))))
  (exp (/ (- x y) (/ (+ (* x x) (* y y)) (+ x y))))
  (pow (/ (- x y) (/ (+ (* x x) (* y y)) (+ x y))) 3)
  (pow (/ (- x y) (/ (+ (* x x) (* y y)) (+ x y))) 3)
  (* (cbrt (/ (- x y) (/ (+ (* x x) (* y y)) (+ x y)))) (cbrt (/ (- x y) (/ (+ (* x x) (* y y)) (+ x y)))))
  (cbrt (/ (- x y) (/ (+ (* x x) (* y y)) (+ x y))))
  (pow (/ (- x y) (/ (+ (* x x) (* y y)) (+ x y))) 3)
  (sqrt (/ (- x y) (/ (+ (* x x) (* y y)) (+ x y))))
  (sqrt (/ (- x y) (/ (+ (* x x) (* y y)) (+ x y))))
  (- (- x y))
  (- (/ (+ (* x x) (* y y)) (+ x y)))
  (/ x (/ (+ (* x x) (* y y)) (+ x y)))
  (/ y (/ (+ (* x x) (* y y)) (+ x y)))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (* (cbrt (/ (+ (* x x) (* y y)) (+ x y))) (cbrt (/ (+ (* x x) (* y y)) (+ x y)))))
  (/ (cbrt (- x y)) (cbrt (/ (+ (* x x) (* y y)) (+ x y))))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (sqrt (/ (+ (* x x) (* y y)) (+ x y))))
  (/ (cbrt (- x y)) (sqrt (/ (+ (* x x) (* y y)) (+ x y))))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (/ (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))) (* (cbrt (+ x y)) (cbrt (+ x y)))))
  (/ (cbrt (- x y)) (/ (cbrt (+ (* x x) (* y y))) (cbrt (+ x y))))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (/ (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))) (sqrt (+ x y))))
  (/ (cbrt (- x y)) (/ (cbrt (+ (* x x) (* y y))) (sqrt (+ x y))))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (/ (cbrt (- x y)) (/ (cbrt (+ (* x x) (* y y))) (+ x y)))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (/ (cbrt (- x y)) (/ (cbrt (+ (* x x) (* y y))) (+ x y)))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (/ (sqrt (+ (* x x) (* y y))) (* (cbrt (+ x y)) (cbrt (+ x y)))))
  (/ (cbrt (- x y)) (/ (sqrt (+ (* x x) (* y y))) (cbrt (+ x y))))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (/ (sqrt (+ (* x x) (* y y))) (sqrt (+ x y))))
  (/ (cbrt (- x y)) (/ (sqrt (+ (* x x) (* y y))) (sqrt (+ x y))))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (sqrt (+ (* x x) (* y y))))
  (/ (cbrt (- x y)) (/ (sqrt (+ (* x x) (* y y))) (+ x y)))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (sqrt (+ (* x x) (* y y))))
  (/ (cbrt (- x y)) (/ (sqrt (+ (* x x) (* y y))) (+ x y)))
  (* (* (cbrt (- x y)) (cbrt (- x y))) (* (cbrt (+ x y)) (cbrt (+ x y))))
  (/ (cbrt (- x y)) (/ (+ (* x x) (* y y)) (cbrt (+ x y))))
  (* (* (cbrt (- x y)) (cbrt (- x y))) (sqrt (+ x y)))
  (/ (cbrt (- x y)) (/ (+ (* x x) (* y y)) (sqrt (+ x y))))
  (* (cbrt (- x y)) (cbrt (- x y)))
  (/ (cbrt (- x y)) (/ (+ (* x x) (* y y)) (+ x y)))
  (* (cbrt (- x y)) (cbrt (- x y)))
  (/ (cbrt (- x y)) (/ (+ (* x x) (* y y)) (+ x y)))
  (* (cbrt (- x y)) (cbrt (- x y)))
  (/ (cbrt (- x y)) (/ (+ (* x x) (* y y)) (+ x y)))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (+ (* x x) (* y y)))
  (* (+ x y) (cbrt (- x y)))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (/ (+ (* x x) (* y y)) (+ (pow x 3) (pow y 3))))
  (/ (cbrt (- x y)) (+ (* x x) (* y (- y x))))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (/ (+ (* x x) (* y y)) (- (* x x) (* y y))))
  (/ (cbrt (- x y)) (- x y))
  (/ (sqrt (- x y)) (* (cbrt (/ (+ (* x x) (* y y)) (+ x y))) (cbrt (/ (+ (* x x) (* y y)) (+ x y)))))
  (/ (sqrt (- x y)) (cbrt (/ (+ (* x x) (* y y)) (+ x y))))
  (/ (sqrt (- x y)) (sqrt (/ (+ (* x x) (* y y)) (+ x y))))
  (/ (sqrt (- x y)) (sqrt (/ (+ (* x x) (* y y)) (+ x y))))
  (/ (sqrt (- x y)) (/ (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))) (* (cbrt (+ x y)) (cbrt (+ x y)))))
  (/ (sqrt (- x y)) (/ (cbrt (+ (* x x) (* y y))) (cbrt (+ x y))))
  (/ (sqrt (- x y)) (/ (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))) (sqrt (+ x y))))
  (/ (sqrt (- x y)) (/ (cbrt (+ (* x x) (* y y))) (sqrt (+ x y))))
  (/ (sqrt (- x y)) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (/ (sqrt (- x y)) (/ (cbrt (+ (* x x) (* y y))) (+ x y)))
  (/ (sqrt (- x y)) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (/ (sqrt (- x y)) (/ (cbrt (+ (* x x) (* y y))) (+ x y)))
  (/ (sqrt (- x y)) (/ (sqrt (+ (* x x) (* y y))) (* (cbrt (+ x y)) (cbrt (+ x y)))))
  (/ (sqrt (- x y)) (/ (sqrt (+ (* x x) (* y y))) (cbrt (+ x y))))
  (/ (sqrt (- x y)) (/ (sqrt (+ (* x x) (* y y))) (sqrt (+ x y))))
  (/ (sqrt (- x y)) (/ (sqrt (+ (* x x) (* y y))) (sqrt (+ x y))))
  (/ (sqrt (- x y)) (sqrt (+ (* x x) (* y y))))
  (/ (sqrt (- x y)) (/ (sqrt (+ (* x x) (* y y))) (+ x y)))
  (/ (sqrt (- x y)) (sqrt (+ (* x x) (* y y))))
  (/ (sqrt (- x y)) (/ (sqrt (+ (* x x) (* y y))) (+ x y)))
  (* (sqrt (- x y)) (* (cbrt (+ x y)) (cbrt (+ x y))))
  (/ (sqrt (- x y)) (/ (+ (* x x) (* y y)) (cbrt (+ x y))))
  (* (sqrt (- x y)) (sqrt (+ x y)))
  (/ (sqrt (- x y)) (/ (+ (* x x) (* y y)) (sqrt (+ x y))))
  (sqrt (- x y))
  (/ (sqrt (- x y)) (/ (+ (* x x) (* y y)) (+ x y)))
  (sqrt (- x y))
  (/ (sqrt (- x y)) (/ (+ (* x x) (* y y)) (+ x y)))
  (sqrt (- x y))
  (/ (sqrt (- x y)) (/ (+ (* x x) (* y y)) (+ x y)))
  (/ (sqrt (- x y)) (+ (* x x) (* y y)))
  (* (sqrt (- x y)) (+ x y))
  (/ (sqrt (- x y)) (/ (+ (* x x) (* y y)) (+ (pow x 3) (pow y 3))))
  (/ (sqrt (- x y)) (+ (* x x) (* y (- y x))))
  (/ (sqrt (- x y)) (/ (+ (* x x) (* y y)) (- (* x x) (* y y))))
  (/ (sqrt (- x y)) (- x y))
  (/ 1 (* (cbrt (/ (+ (* x x) (* y y)) (+ x y))) (cbrt (/ (+ (* x x) (* y y)) (+ x y)))))
  (/ (- x y) (cbrt (/ (+ (* x x) (* y y)) (+ x y))))
  (/ 1 (sqrt (/ (+ (* x x) (* y y)) (+ x y))))
  (/ (- x y) (sqrt (/ (+ (* x x) (* y y)) (+ x y))))
  (/ (* (cbrt (+ x y)) (cbrt (+ x y))) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (/ (- x y) (/ (cbrt (+ (* x x) (* y y))) (cbrt (+ x y))))
  (/ (sqrt (+ x y)) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (/ (- x y) (/ (cbrt (+ (* x x) (* y y))) (sqrt (+ x y))))
  (/ 1 (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (/ (- x y) (/ (cbrt (+ (* x x) (* y y))) (+ x y)))
  (/ 1 (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (/ (- x y) (/ (cbrt (+ (* x x) (* y y))) (+ x y)))
  (/ (* (cbrt (+ x y)) (cbrt (+ x y))) (sqrt (+ (* x x) (* y y))))
  (/ (- x y) (/ (sqrt (+ (* x x) (* y y))) (cbrt (+ x y))))
  (/ (sqrt (+ x y)) (sqrt (+ (* x x) (* y y))))
  (/ (- x y) (/ (sqrt (+ (* x x) (* y y))) (sqrt (+ x y))))
  (/ 1 (sqrt (+ (* x x) (* y y))))
  (/ (- x y) (/ (sqrt (+ (* x x) (* y y))) (+ x y)))
  (/ 1 (sqrt (+ (* x x) (* y y))))
  (/ (- x y) (/ (sqrt (+ (* x x) (* y y))) (+ x y)))
  (* (cbrt (+ x y)) (cbrt (+ x y)))
  (/ (- x y) (/ (+ (* x x) (* y y)) (cbrt (+ x y))))
  (sqrt (+ x y))
  (/ (- x y) (/ (+ (* x x) (* y y)) (sqrt (+ x y))))
  1
  (/ (- x y) (/ (+ (* y y) (* x x)) (+ x y)))
  1
  (/ (- x y) (/ (+ (* y y) (* x x)) (+ x y)))
  1
  (/ (- x y) (/ (+ (* y y) (* x x)) (+ x y)))
  (/ 1 (+ (* x x) (* y y)))
  (- (* x x) (* y y))
  (/ 1 (/ (+ (* x x) (* y y)) (+ (pow x 3) (pow y 3))))
  (/ (- x y) (+ (* x x) (* y (- y x))))
  (/ (- x y) (/ (+ (* y y) (* x x)) (+ x y)))
  1
  (/ (+ (sqrt x) (sqrt y)) (* (cbrt (/ (+ (* x x) (* y y)) (+ x y))) (cbrt (/ (+ (* x x) (* y y)) (+ x y)))))
  (/ (- (sqrt x) (sqrt y)) (cbrt (/ (+ (* x x) (* y y)) (+ x y))))
  (/ (+ (sqrt x) (sqrt y)) (sqrt (/ (+ (* x x) (* y y)) (+ x y))))
  (/ (- (sqrt x) (sqrt y)) (sqrt (/ (+ (* x x) (* y y)) (+ x y))))
  (/ (+ (sqrt x) (sqrt y)) (/ (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))) (* (cbrt (+ x y)) (cbrt (+ x y)))))
  (/ (- (sqrt x) (sqrt y)) (/ (cbrt (+ (* x x) (* y y))) (cbrt (+ x y))))
  (/ (+ (sqrt x) (sqrt y)) (/ (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))) (sqrt (+ x y))))
  (/ (- (sqrt x) (sqrt y)) (/ (cbrt (+ (* x x) (* y y))) (sqrt (+ x y))))
  (/ (+ (sqrt x) (sqrt y)) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (/ (- (sqrt x) (sqrt y)) (/ (cbrt (+ (* x x) (* y y))) (+ x y)))
  (/ (+ (sqrt x) (sqrt y)) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (/ (- (sqrt x) (sqrt y)) (/ (cbrt (+ (* x x) (* y y))) (+ x y)))
  (/ (+ (sqrt x) (sqrt y)) (/ (sqrt (+ (* x x) (* y y))) (* (cbrt (+ x y)) (cbrt (+ x y)))))
  (/ (- (sqrt x) (sqrt y)) (/ (sqrt (+ (* x x) (* y y))) (cbrt (+ x y))))
  (/ (+ (sqrt x) (sqrt y)) (/ (sqrt (+ (* x x) (* y y))) (sqrt (+ x y))))
  (/ (- (sqrt x) (sqrt y)) (/ (sqrt (+ (* x x) (* y y))) (sqrt (+ x y))))
  (/ (+ (sqrt x) (sqrt y)) (sqrt (+ (* x x) (* y y))))
  (/ (- (sqrt x) (sqrt y)) (/ (sqrt (+ (* x x) (* y y))) (+ x y)))
  (/ (+ (sqrt x) (sqrt y)) (sqrt (+ (* x x) (* y y))))
  (/ (- (sqrt x) (sqrt y)) (/ (sqrt (+ (* x x) (* y y))) (+ x y)))
  (* (+ (sqrt x) (sqrt y)) (* (cbrt (+ x y)) (cbrt (+ x y))))
  (/ (- (sqrt x) (sqrt y)) (/ (+ (* x x) (* y y)) (cbrt (+ x y))))
  (* (+ (sqrt x) (sqrt y)) (sqrt (+ x y)))
  (/ (- (sqrt x) (sqrt y)) (/ (+ (* x x) (* y y)) (sqrt (+ x y))))
  (+ (sqrt x) (sqrt y))
  (/ (- (sqrt x) (sqrt y)) (/ (+ (* x x) (* y y)) (+ x y)))
  (+ (sqrt x) (sqrt y))
  (/ (- (sqrt x) (sqrt y)) (/ (+ (* x x) (* y y)) (+ x y)))
  (+ (sqrt x) (sqrt y))
  (/ (- (sqrt x) (sqrt y)) (/ (+ (* x x) (* y y)) (+ x y)))
  (/ (+ (sqrt x) (sqrt y)) (+ (* x x) (* y y)))
  (* (+ x y) (- (sqrt x) (sqrt y)))
  (/ (+ (sqrt x) (sqrt y)) (/ (+ (* x x) (* y y)) (+ (pow x 3) (pow y 3))))
  (/ (- (sqrt x) (sqrt y)) (+ (* x x) (* y (- y x))))
  (/ (+ (sqrt x) (sqrt y)) (/ (+ (* x x) (* y y)) (- (* x x) (* y y))))
  (/ (- (sqrt x) (sqrt y)) (- x y))
  (/ 1 (* (cbrt (/ (+ (* x x) (* y y)) (+ x y))) (cbrt (/ (+ (* x x) (* y y)) (+ x y)))))
  (/ (- x y) (cbrt (/ (+ (* x x) (* y y)) (+ x y))))
  (/ 1 (sqrt (/ (+ (* x x) (* y y)) (+ x y))))
  (/ (- x y) (sqrt (/ (+ (* x x) (* y y)) (+ x y))))
  (/ (* (cbrt (+ x y)) (cbrt (+ x y))) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (/ (- x y) (/ (cbrt (+ (* x x) (* y y))) (cbrt (+ x y))))
  (/ (sqrt (+ x y)) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (/ (- x y) (/ (cbrt (+ (* x x) (* y y))) (sqrt (+ x y))))
  (/ 1 (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (/ (- x y) (/ (cbrt (+ (* x x) (* y y))) (+ x y)))
  (/ 1 (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (/ (- x y) (/ (cbrt (+ (* x x) (* y y))) (+ x y)))
  (/ (* (cbrt (+ x y)) (cbrt (+ x y))) (sqrt (+ (* x x) (* y y))))
  (/ (- x y) (/ (sqrt (+ (* x x) (* y y))) (cbrt (+ x y))))
  (/ (sqrt (+ x y)) (sqrt (+ (* x x) (* y y))))
  (/ (- x y) (/ (sqrt (+ (* x x) (* y y))) (sqrt (+ x y))))
  (/ 1 (sqrt (+ (* x x) (* y y))))
  (/ (- x y) (/ (sqrt (+ (* x x) (* y y))) (+ x y)))
  (/ 1 (sqrt (+ (* x x) (* y y))))
  (/ (- x y) (/ (sqrt (+ (* x x) (* y y))) (+ x y)))
  (* (cbrt (+ x y)) (cbrt (+ x y)))
  (/ (- x y) (/ (+ (* x x) (* y y)) (cbrt (+ x y))))
  (sqrt (+ x y))
  (/ (- x y) (/ (+ (* x x) (* y y)) (sqrt (+ x y))))
  1
  (/ (- x y) (/ (+ (* y y) (* x x)) (+ x y)))
  1
  (/ (- x y) (/ (+ (* y y) (* x x)) (+ x y)))
  1
  (/ (- x y) (/ (+ (* y y) (* x x)) (+ x y)))
  (/ 1 (+ (* x x) (* y y)))
  (- (* x x) (* y y))
  (/ 1 (/ (+ (* x x) (* y y)) (+ (pow x 3) (pow y 3))))
  (/ (- x y) (+ (* x x) (* y (- y x))))
  (/ (- x y) (/ (+ (* y y) (* x x)) (+ x y)))
  1
  (/ 1 (/ (+ (* x x) (* y y)) (+ x y)))
  (/ (+ (* x x) (* y y)) (- (* x x) (* y y)))
  (/ (- x y) (* (cbrt (/ (+ (* x x) (* y y)) (+ x y))) (cbrt (/ (+ (* x x) (* y y)) (+ x y)))))
  (/ (- x y) (sqrt (/ (+ (* x x) (* y y)) (+ x y))))
  (/ (- x y) (/ (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))) (* (cbrt (+ x y)) (cbrt (+ x y)))))
  (/ (- x y) (/ (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))) (sqrt (+ x y))))
  (/ (- x y) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (/ (- x y) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (/ (- x y) (/ (sqrt (+ (* x x) (* y y))) (* (cbrt (+ x y)) (cbrt (+ x y)))))
  (/ (- x y) (/ (sqrt (+ (* x x) (* y y))) (sqrt (+ x y))))
  (/ (- x y) (sqrt (+ (* x x) (* y y))))
  (/ (- x y) (sqrt (+ (* x x) (* y y))))
  (* (- x y) (* (cbrt (+ x y)) (cbrt (+ x y))))
  (* (- x y) (sqrt (+ x y)))
  (- x y)
  (- x y)
  (- x y)
  (/ (- x y) (+ (* x x) (* y y)))
  (/ (- x y) (/ (+ (* x x) (* y y)) (+ (pow x 3) (pow y 3))))
  (* (/ (- x y) (/ (+ (* x x) (* y y)) (+ x y))) (- x y))
  (/ (/ (+ (* x x) (* y y)) (+ x y)) (cbrt (- x y)))
  (/ (/ (+ (* x x) (* y y)) (+ x y)) (sqrt (- x y)))
  (/ (+ (* x x) (* y y)) (- (* x x) (* y y)))
  (/ (/ (+ (* x x) (* y y)) (+ x y)) (- (sqrt x) (sqrt y)))
  (/ (+ (* x x) (* y y)) (- (* x x) (* y y)))
  (/ (- x y) (+ (* x x) (* y y)))
  (* (+ (* y (+ x y)) (* x x)) (/ (+ (* x x) (* y y)) (+ x y)))
  (* (/ (+ (* x x) (* y y)) (+ x y)) (+ x y))
  (- y x)
  (- x y)
  (- x y)
  -1
  1
  1
6.112 * * * [progress]: adding candidates to table
6.417 * * [progress]: iteration 4 / 4
6.417 * * * [progress]: picking best candidate
6.418 * * * * [pick]: Picked  #<alt (λ (x y) 1)>
6.418 * * * [progress]: localizing error
6.418 * * * [progress]: generating rewritten candidates
6.418 * * * [progress]: generating series expansions
6.418 * * * [progress]: simplifying candidates
6.419 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   
6.419 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
6.419 * * [simplify]: iteration  done :  0  enodes  (cost  0 )
6.419 * [simplify]: Simplified to:
   
6.419 * * * [progress]: adding candidates to table
6.420 * [progress]: [Phase 3 of 3] Extracting.
6.420 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) -1)> #<alt (λ (x y) 1)> #<alt (λ (x y) (/ (- x y) (/ (+ (* x x) (* y y)) (+ x y))))> #<alt (λ (x y) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))>)
6.420 * * * [regime-changes]: Trying 3 branch expressions: ((/ (* (- x y) (+ x y)) (+ (* x x) (* y y))) y x)
6.420 * * * * [regimes]: Trying to branch on (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))) from (#<alt (λ (x y) -1)> #<alt (λ (x y) 1)> #<alt (λ (x y) (/ (- x y) (/ (+ (* x x) (* y y)) (+ x y))))> #<alt (λ (x y) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))>)
6.434 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) -1)> #<alt (λ (x y) 1)> #<alt (λ (x y) (/ (- x y) (/ (+ (* x x) (* y y)) (+ x y))))> #<alt (λ (x y) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))>)
6.464 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) -1)> #<alt (λ (x y) 1)> #<alt (λ (x y) (/ (- x y) (/ (+ (* x x) (* y y)) (+ x y))))> #<alt (λ (x y) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))>)
6.482 * * * [regime]: Found split indices: #<option (#s(si 0 48) #s(si 3 128) #s(si 1 204) #s(si 3 255))>
6.483 * [binary-search]: Improving bounds with binary search for y and (#<alt (λ (x y) -1)> #<alt (λ (x y) 1)> #<alt (λ (x y) (/ (- x y) (/ (+ (* x x) (* y y)) (+ x y))))> #<alt (λ (x y) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))>)
6.541 * [regimes]: Found splitpoints: (#s(sp 0 y -6.914902721332837e+144) #s(sp 3 y -3.5965424677863614e-162) #s(sp 1 y 5.563172435273904e-165) #s(sp 3 y +nan.0)) , with alts (#<alt (λ (x y) -1)> #<alt (λ (x y) 1)> #<alt (λ (x y) (/ (- x y) (/ (+ (* x x) (* y y)) (+ x y))))> #<alt (λ (x y) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))>)
6.541 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (if (<= y -6.914902721332837e+144) -1 (if (<= y -3.5965424677863614e-162) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))) (if (<= y 5.563172435273904e-165) 1 (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))))
6.542 * * [simplify]: iteration  0 :  20  enodes  (cost  44 )
6.543 * * [simplify]: iteration  1 :  28  enodes  (cost  30 )
6.543 * * [simplify]: iteration  done :  28  enodes  (cost  30 )
6.543 * [simplify]: Simplified to:
   (if (<= y -6.914902721332837e+144) -1 (if (or (<= y -3.5965424677863614e-162) (not (<= y 5.563172435273904e-165))) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))) 1))
7.150 * [regime-testing]: Baseline error score: 21.247162061530716
7.151 * [regime-testing]: Oracle error score: 0.4581040795126649
7.152 * [regime-testing]: End program error score: 4.962861728028266
7.184 * [regime-testing]: Target error score: 0.04854403832026478