27.861 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.022 * * * [progress]: [2/2] Setting up program.
0.025 * [progress]: [Phase 2 of 3] Improving.
0.025 * [simplify]: Simplifying:
  (- (* x x) (* y y))
0.025 * * [simplify]: iteration 0: 5 enodes
0.026 * * [simplify]: iteration 1: 10 enodes
0.027 * * [simplify]: iteration 2: 17 enodes
0.030 * * [simplify]: iteration 3: 32 enodes
0.039 * * [simplify]: iteration 4: 58 enodes
0.060 * * [simplify]: iteration 5: 129 enodes
0.092 * * [simplify]: iteration 6: 281 enodes
0.194 * * [simplify]: iteration 7: 703 enodes
1.235 * * [simplify]: iteration 8: 3184 enodes
3.106 * * [simplify]: iteration complete: 5000 enodes
3.106 * * [simplify]: Extracting #0: cost 1 inf + 0
3.106 * * [simplify]: Extracting #1: cost 139 inf + 0
3.109 * * [simplify]: Extracting #2: cost 1135 inf + 3
3.114 * * [simplify]: Extracting #3: cost 1018 inf + 1047
3.119 * * [simplify]: Extracting #4: cost 149 inf + 6906
3.123 * * [simplify]: Extracting #5: cost 1 inf + 8257
3.128 * * [simplify]: Extracting #6: cost 0 inf + 8263
3.133 * [simplify]: Simplified to:
  (- (* x x) (* y y))
3.133 * * [progress]: iteration 1 / 4
3.133 * * * [progress]: picking best candidate
3.136 * * * * [pick]: Picked  #<alt (λ (x y) (- (* x x) (* y y)))>
3.136 * * * [progress]: localizing error
3.150 * * * [progress]: generating rewritten candidates
3.150 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
3.157 * * * [progress]: generating series expansions
3.157 * * * * [progress]: [ 1 / 1 ] generating series at (2)
3.158 * [backup-simplify]: Simplify (- (* x x) (* y y)) into (- (pow x 2) (pow y 2))
3.158 * [approximate]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in (x y) around 0
3.158 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in y
3.158 * [taylor]: Taking taylor expansion of (pow x 2) in y
3.158 * [taylor]: Taking taylor expansion of x in y
3.158 * [backup-simplify]: Simplify x into x
3.158 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.158 * [taylor]: Taking taylor expansion of y in y
3.158 * [backup-simplify]: Simplify 0 into 0
3.158 * [backup-simplify]: Simplify 1 into 1
3.158 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
3.158 * [taylor]: Taking taylor expansion of (pow x 2) in x
3.158 * [taylor]: Taking taylor expansion of x in x
3.158 * [backup-simplify]: Simplify 0 into 0
3.158 * [backup-simplify]: Simplify 1 into 1
3.158 * [taylor]: Taking taylor expansion of (pow y 2) in x
3.158 * [taylor]: Taking taylor expansion of y in x
3.158 * [backup-simplify]: Simplify y into y
3.158 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
3.158 * [taylor]: Taking taylor expansion of (pow x 2) in x
3.158 * [taylor]: Taking taylor expansion of x in x
3.158 * [backup-simplify]: Simplify 0 into 0
3.158 * [backup-simplify]: Simplify 1 into 1
3.158 * [taylor]: Taking taylor expansion of (pow y 2) in x
3.158 * [taylor]: Taking taylor expansion of y in x
3.158 * [backup-simplify]: Simplify y into y
3.158 * [backup-simplify]: Simplify (* y y) into (pow y 2)
3.158 * [backup-simplify]: Simplify (- (pow y 2)) into (- (pow y 2))
3.159 * [backup-simplify]: Simplify (+ 0 (- (pow y 2))) into (- (pow y 2))
3.159 * [taylor]: Taking taylor expansion of (- (pow y 2)) in y
3.159 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.159 * [taylor]: Taking taylor expansion of y in y
3.159 * [backup-simplify]: Simplify 0 into 0
3.159 * [backup-simplify]: Simplify 1 into 1
3.159 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
3.159 * [backup-simplify]: Simplify (- 0) into 0
3.160 * [backup-simplify]: Simplify (+ 0 0) into 0
3.160 * [taylor]: Taking taylor expansion of 0 in y
3.160 * [backup-simplify]: Simplify 0 into 0
3.160 * [backup-simplify]: Simplify 0 into 0
3.160 * [backup-simplify]: Simplify (* 1 1) into 1
3.161 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
3.161 * [backup-simplify]: Simplify (- 0) into 0
3.161 * [backup-simplify]: Simplify (+ 1 0) into 1
3.161 * [taylor]: Taking taylor expansion of 1 in y
3.161 * [backup-simplify]: Simplify 1 into 1
3.161 * [backup-simplify]: Simplify 1 into 1
3.161 * [backup-simplify]: Simplify 0 into 0
3.162 * [backup-simplify]: Simplify (* 1 1) into 1
3.162 * [backup-simplify]: Simplify (- 1) into -1
3.162 * [backup-simplify]: Simplify -1 into -1
3.162 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.163 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (+ (* 0 0) (* 0 y)))) into 0
3.163 * [backup-simplify]: Simplify (- 0) into 0
3.164 * [backup-simplify]: Simplify (+ 0 0) into 0
3.164 * [taylor]: Taking taylor expansion of 0 in y
3.164 * [backup-simplify]: Simplify 0 into 0
3.164 * [backup-simplify]: Simplify 0 into 0
3.164 * [backup-simplify]: Simplify 0 into 0
3.164 * [backup-simplify]: Simplify 0 into 0
3.164 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.164 * [backup-simplify]: Simplify (- 0) into 0
3.164 * [backup-simplify]: Simplify 0 into 0
3.165 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
3.166 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 y))))) into 0
3.166 * [backup-simplify]: Simplify (- 0) into 0
3.166 * [backup-simplify]: Simplify (+ 0 0) into 0
3.167 * [taylor]: Taking taylor expansion of 0 in y
3.167 * [backup-simplify]: Simplify 0 into 0
3.167 * [backup-simplify]: Simplify 0 into 0
3.167 * [backup-simplify]: Simplify 0 into 0
3.167 * [backup-simplify]: Simplify (+ (* -1 (pow (* y 1) 2)) (* 1 (pow (* 1 x) 2))) into (- (pow x 2) (pow y 2))
3.167 * [backup-simplify]: Simplify (- (* (/ 1 x) (/ 1 x)) (* (/ 1 y) (/ 1 y))) into (- (/ 1 (pow x 2)) (/ 1 (pow y 2)))
3.167 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
3.167 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
3.167 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
3.167 * [taylor]: Taking taylor expansion of (pow x 2) in y
3.167 * [taylor]: Taking taylor expansion of x in y
3.167 * [backup-simplify]: Simplify x into x
3.167 * [backup-simplify]: Simplify (* x x) into (pow x 2)
3.167 * [backup-simplify]: Simplify (/ 1 (pow x 2)) into (/ 1 (pow x 2))
3.167 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
3.167 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.167 * [taylor]: Taking taylor expansion of y in y
3.167 * [backup-simplify]: Simplify 0 into 0
3.167 * [backup-simplify]: Simplify 1 into 1
3.168 * [backup-simplify]: Simplify (* 1 1) into 1
3.168 * [backup-simplify]: Simplify (/ 1 1) into 1
3.168 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
3.168 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
3.168 * [taylor]: Taking taylor expansion of (pow x 2) in x
3.168 * [taylor]: Taking taylor expansion of x in x
3.168 * [backup-simplify]: Simplify 0 into 0
3.168 * [backup-simplify]: Simplify 1 into 1
3.168 * [backup-simplify]: Simplify (* 1 1) into 1
3.169 * [backup-simplify]: Simplify (/ 1 1) into 1
3.169 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
3.169 * [taylor]: Taking taylor expansion of (pow y 2) in x
3.169 * [taylor]: Taking taylor expansion of y in x
3.169 * [backup-simplify]: Simplify y into y
3.169 * [backup-simplify]: Simplify (* y y) into (pow y 2)
3.169 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
3.169 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
3.169 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
3.169 * [taylor]: Taking taylor expansion of (pow x 2) in x
3.169 * [taylor]: Taking taylor expansion of x in x
3.169 * [backup-simplify]: Simplify 0 into 0
3.169 * [backup-simplify]: Simplify 1 into 1
3.169 * [backup-simplify]: Simplify (* 1 1) into 1
3.170 * [backup-simplify]: Simplify (/ 1 1) into 1
3.170 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
3.170 * [taylor]: Taking taylor expansion of (pow y 2) in x
3.170 * [taylor]: Taking taylor expansion of y in x
3.170 * [backup-simplify]: Simplify y into y
3.170 * [backup-simplify]: Simplify (* y y) into (pow y 2)
3.170 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
3.170 * [backup-simplify]: Simplify (+ 1 0) into 1
3.170 * [taylor]: Taking taylor expansion of 1 in y
3.170 * [backup-simplify]: Simplify 1 into 1
3.171 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.171 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.172 * [backup-simplify]: Simplify (+ 0 0) into 0
3.172 * [taylor]: Taking taylor expansion of 0 in y
3.172 * [backup-simplify]: Simplify 0 into 0
3.172 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
3.173 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.173 * [backup-simplify]: Simplify (- (/ 1 (pow y 2))) into (- (/ 1 (pow y 2)))
3.173 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow y 2)))) into (- (/ 1 (pow y 2)))
3.173 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
3.173 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
3.173 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.173 * [taylor]: Taking taylor expansion of y in y
3.173 * [backup-simplify]: Simplify 0 into 0
3.173 * [backup-simplify]: Simplify 1 into 1
3.173 * [backup-simplify]: Simplify (* 1 1) into 1
3.174 * [backup-simplify]: Simplify (/ 1 1) into 1
3.174 * [backup-simplify]: Simplify (- 1) into -1
3.174 * [backup-simplify]: Simplify -1 into -1
3.174 * [backup-simplify]: Simplify 1 into 1
3.175 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
3.175 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.175 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
3.176 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))))) into 0
3.176 * [backup-simplify]: Simplify (- 0) into 0
3.176 * [backup-simplify]: Simplify (+ 0 0) into 0
3.176 * [taylor]: Taking taylor expansion of 0 in y
3.176 * [backup-simplify]: Simplify 0 into 0
3.177 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.177 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.177 * [backup-simplify]: Simplify (- 0) into 0
3.177 * [backup-simplify]: Simplify 0 into 0
3.178 * [backup-simplify]: Simplify 0 into 0
3.178 * [backup-simplify]: Simplify 0 into 0
3.178 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
3.179 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.179 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
3.180 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))) (* 0 (/ 0 (pow y 2))))) into 0
3.180 * [backup-simplify]: Simplify (- 0) into 0
3.180 * [backup-simplify]: Simplify (+ 0 0) into 0
3.180 * [taylor]: Taking taylor expansion of 0 in y
3.180 * [backup-simplify]: Simplify 0 into 0
3.181 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
3.181 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.182 * [backup-simplify]: Simplify (- 0) into 0
3.182 * [backup-simplify]: Simplify 0 into 0
3.182 * [backup-simplify]: Simplify 0 into 0
3.182 * [backup-simplify]: Simplify 0 into 0
3.182 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 x))) 2)) (* -1 (pow (* (/ 1 (/ 1 y)) 1) 2))) into (- (pow x 2) (pow y 2))
3.182 * [backup-simplify]: Simplify (- (* (/ 1 (- x)) (/ 1 (- x))) (* (/ 1 (- y)) (/ 1 (- y)))) into (- (/ 1 (pow x 2)) (/ 1 (pow y 2)))
3.182 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
3.182 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
3.182 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
3.182 * [taylor]: Taking taylor expansion of (pow x 2) in y
3.182 * [taylor]: Taking taylor expansion of x in y
3.182 * [backup-simplify]: Simplify x into x
3.182 * [backup-simplify]: Simplify (* x x) into (pow x 2)
3.182 * [backup-simplify]: Simplify (/ 1 (pow x 2)) into (/ 1 (pow x 2))
3.182 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
3.182 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.182 * [taylor]: Taking taylor expansion of y in y
3.183 * [backup-simplify]: Simplify 0 into 0
3.183 * [backup-simplify]: Simplify 1 into 1
3.183 * [backup-simplify]: Simplify (* 1 1) into 1
3.183 * [backup-simplify]: Simplify (/ 1 1) into 1
3.183 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
3.183 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
3.183 * [taylor]: Taking taylor expansion of (pow x 2) in x
3.183 * [taylor]: Taking taylor expansion of x in x
3.183 * [backup-simplify]: Simplify 0 into 0
3.183 * [backup-simplify]: Simplify 1 into 1
3.183 * [backup-simplify]: Simplify (* 1 1) into 1
3.184 * [backup-simplify]: Simplify (/ 1 1) into 1
3.184 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
3.184 * [taylor]: Taking taylor expansion of (pow y 2) in x
3.184 * [taylor]: Taking taylor expansion of y in x
3.184 * [backup-simplify]: Simplify y into y
3.184 * [backup-simplify]: Simplify (* y y) into (pow y 2)
3.184 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
3.184 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
3.184 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
3.184 * [taylor]: Taking taylor expansion of (pow x 2) in x
3.184 * [taylor]: Taking taylor expansion of x in x
3.184 * [backup-simplify]: Simplify 0 into 0
3.184 * [backup-simplify]: Simplify 1 into 1
3.184 * [backup-simplify]: Simplify (* 1 1) into 1
3.185 * [backup-simplify]: Simplify (/ 1 1) into 1
3.185 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
3.185 * [taylor]: Taking taylor expansion of (pow y 2) in x
3.185 * [taylor]: Taking taylor expansion of y in x
3.185 * [backup-simplify]: Simplify y into y
3.185 * [backup-simplify]: Simplify (* y y) into (pow y 2)
3.185 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
3.185 * [backup-simplify]: Simplify (+ 1 0) into 1
3.185 * [taylor]: Taking taylor expansion of 1 in y
3.185 * [backup-simplify]: Simplify 1 into 1
3.186 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.186 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.186 * [backup-simplify]: Simplify (+ 0 0) into 0
3.187 * [taylor]: Taking taylor expansion of 0 in y
3.187 * [backup-simplify]: Simplify 0 into 0
3.187 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
3.188 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.188 * [backup-simplify]: Simplify (- (/ 1 (pow y 2))) into (- (/ 1 (pow y 2)))
3.188 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow y 2)))) into (- (/ 1 (pow y 2)))
3.188 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
3.188 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
3.188 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.188 * [taylor]: Taking taylor expansion of y in y
3.188 * [backup-simplify]: Simplify 0 into 0
3.188 * [backup-simplify]: Simplify 1 into 1
3.188 * [backup-simplify]: Simplify (* 1 1) into 1
3.189 * [backup-simplify]: Simplify (/ 1 1) into 1
3.189 * [backup-simplify]: Simplify (- 1) into -1
3.189 * [backup-simplify]: Simplify -1 into -1
3.189 * [backup-simplify]: Simplify 1 into 1
3.190 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
3.190 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.190 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
3.191 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))))) into 0
3.191 * [backup-simplify]: Simplify (- 0) into 0
3.191 * [backup-simplify]: Simplify (+ 0 0) into 0
3.191 * [taylor]: Taking taylor expansion of 0 in y
3.191 * [backup-simplify]: Simplify 0 into 0
3.192 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.192 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.192 * [backup-simplify]: Simplify (- 0) into 0
3.192 * [backup-simplify]: Simplify 0 into 0
3.192 * [backup-simplify]: Simplify 0 into 0
3.192 * [backup-simplify]: Simplify 0 into 0
3.193 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
3.194 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.194 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
3.194 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))) (* 0 (/ 0 (pow y 2))))) into 0
3.195 * [backup-simplify]: Simplify (- 0) into 0
3.195 * [backup-simplify]: Simplify (+ 0 0) into 0
3.195 * [taylor]: Taking taylor expansion of 0 in y
3.195 * [backup-simplify]: Simplify 0 into 0
3.196 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
3.196 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.196 * [backup-simplify]: Simplify (- 0) into 0
3.196 * [backup-simplify]: Simplify 0 into 0
3.196 * [backup-simplify]: Simplify 0 into 0
3.196 * [backup-simplify]: Simplify 0 into 0
3.197 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 (- x)))) 2)) (* -1 (pow (* (/ 1 (/ 1 (- y))) 1) 2))) into (- (pow x 2) (pow y 2))
3.197 * * * [progress]: simplifying candidates
3.197 * [simplify]: Simplifying:
  (/ (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))
3.198 * * [simplify]: iteration 0: 33 enodes
3.204 * * [simplify]: iteration 1: 111 enodes
3.253 * * [simplify]: iteration 2: 589 enodes
3.543 * * [simplify]: iteration complete: 5000 enodes
3.543 * * [simplify]: Extracting #0: cost 14 inf + 0
3.545 * * [simplify]: Extracting #1: cost 378 inf + 0
3.552 * * [simplify]: Extracting #2: cost 1741 inf + 421
3.574 * * [simplify]: Extracting #3: cost 1092 inf + 8480
3.590 * * [simplify]: Extracting #4: cost 185 inf + 14419
3.605 * * [simplify]: Extracting #5: cost 22 inf + 15490
3.620 * * [simplify]: Extracting #6: cost 0 inf + 15618
3.635 * [simplify]: Simplified to:
  (pow (exp (+ x y)) (- x y))
  (log (* (+ x y) (- x y)))
  (pow (exp (+ x y)) (- x y))
  (* (cbrt (* (+ x y) (- x y))) (cbrt (* (+ x y) (- x y))))
  (cbrt (* (+ x y) (- x y)))
  (pow (* (+ x y) (- x y)) 3)
  (sqrt (* (+ x y) (- x y)))
  (sqrt (* (+ x y) (- x y)))
  (- (pow x 6) (pow y 6))
  (+ (* y (+ (* y (* x x)) (pow y 3))) (pow x 4))
  (* (- y) y)
  (- (pow x 4) (pow y 4))
  (+ (* x x) (* y y))
  (+ x y)
  (- x y)
  (* (- y) y)
  (* (+ x y) (- x y))
  (* (+ x y) (- x y))
  (* (+ x y) (- x y))
3.635 * * * [progress]: adding candidates to table
3.693 * * [progress]: iteration 2 / 4
3.693 * * * [progress]: picking best candidate
3.696 * * * * [pick]: Picked  #<alt (λ (x y) (* (+ x y) (- x y)))>
3.696 * * * [progress]: localizing error
3.703 * * * [progress]: generating rewritten candidates
3.703 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
3.743 * * * [progress]: generating series expansions
3.743 * * * * [progress]: [ 1 / 1 ] generating series at (2)
3.743 * [backup-simplify]: Simplify (* (+ x y) (- x y)) into (* (+ x y) (- x y))
3.743 * [approximate]: Taking taylor expansion of (* (+ x y) (- x y)) in (x y) around 0
3.743 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in y
3.743 * [taylor]: Taking taylor expansion of (+ x y) in y
3.743 * [taylor]: Taking taylor expansion of x in y
3.743 * [backup-simplify]: Simplify x into x
3.743 * [taylor]: Taking taylor expansion of y in y
3.743 * [backup-simplify]: Simplify 0 into 0
3.743 * [backup-simplify]: Simplify 1 into 1
3.743 * [taylor]: Taking taylor expansion of (- x y) in y
3.743 * [taylor]: Taking taylor expansion of x in y
3.743 * [backup-simplify]: Simplify x into x
3.743 * [taylor]: Taking taylor expansion of y in y
3.743 * [backup-simplify]: Simplify 0 into 0
3.743 * [backup-simplify]: Simplify 1 into 1
3.743 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
3.743 * [taylor]: Taking taylor expansion of (+ x y) in x
3.743 * [taylor]: Taking taylor expansion of x in x
3.743 * [backup-simplify]: Simplify 0 into 0
3.743 * [backup-simplify]: Simplify 1 into 1
3.743 * [taylor]: Taking taylor expansion of y in x
3.744 * [backup-simplify]: Simplify y into y
3.744 * [taylor]: Taking taylor expansion of (- x y) in x
3.744 * [taylor]: Taking taylor expansion of x in x
3.744 * [backup-simplify]: Simplify 0 into 0
3.744 * [backup-simplify]: Simplify 1 into 1
3.744 * [taylor]: Taking taylor expansion of y in x
3.744 * [backup-simplify]: Simplify y into y
3.744 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
3.744 * [taylor]: Taking taylor expansion of (+ x y) in x
3.744 * [taylor]: Taking taylor expansion of x in x
3.744 * [backup-simplify]: Simplify 0 into 0
3.744 * [backup-simplify]: Simplify 1 into 1
3.744 * [taylor]: Taking taylor expansion of y in x
3.744 * [backup-simplify]: Simplify y into y
3.744 * [taylor]: Taking taylor expansion of (- x y) in x
3.744 * [taylor]: Taking taylor expansion of x in x
3.744 * [backup-simplify]: Simplify 0 into 0
3.744 * [backup-simplify]: Simplify 1 into 1
3.744 * [taylor]: Taking taylor expansion of y in x
3.744 * [backup-simplify]: Simplify y into y
3.744 * [backup-simplify]: Simplify (+ 0 y) into y
3.744 * [backup-simplify]: Simplify (- y) into (- y)
3.744 * [backup-simplify]: Simplify (+ 0 (- y)) into (- y)
3.744 * [backup-simplify]: Simplify (* y (- y)) into (* -1 (pow y 2))
3.744 * [taylor]: Taking taylor expansion of (* -1 (pow y 2)) in y
3.744 * [taylor]: Taking taylor expansion of -1 in y
3.744 * [backup-simplify]: Simplify -1 into -1
3.744 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.744 * [taylor]: Taking taylor expansion of y in y
3.744 * [backup-simplify]: Simplify 0 into 0
3.744 * [backup-simplify]: Simplify 1 into 1
3.745 * [backup-simplify]: Simplify (- 0) into 0
3.745 * [backup-simplify]: Simplify (+ 1 0) into 1
3.746 * [backup-simplify]: Simplify (+ 1 0) into 1
3.746 * [backup-simplify]: Simplify (+ (* y 1) (* 1 (- y))) into 0
3.746 * [taylor]: Taking taylor expansion of 0 in y
3.746 * [backup-simplify]: Simplify 0 into 0
3.746 * [backup-simplify]: Simplify 0 into 0
3.746 * [backup-simplify]: Simplify (- 0) into 0
3.746 * [backup-simplify]: Simplify (+ 0 0) into 0
3.747 * [backup-simplify]: Simplify (+ 0 0) into 0
3.747 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 1 1) (* 0 (- y)))) into 1
3.747 * [taylor]: Taking taylor expansion of 1 in y
3.747 * [backup-simplify]: Simplify 1 into 1
3.747 * [backup-simplify]: Simplify 1 into 1
3.747 * [backup-simplify]: Simplify 0 into 0
3.747 * [backup-simplify]: Simplify (* 1 1) into 1
3.748 * [backup-simplify]: Simplify (* -1 1) into -1
3.748 * [backup-simplify]: Simplify -1 into -1
3.748 * [backup-simplify]: Simplify (- 0) into 0
3.748 * [backup-simplify]: Simplify (+ 0 0) into 0
3.749 * [backup-simplify]: Simplify (+ 0 0) into 0
3.749 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 1 0) (+ (* 0 1) (* 0 (- y))))) into 0
3.749 * [taylor]: Taking taylor expansion of 0 in y
3.749 * [backup-simplify]: Simplify 0 into 0
3.749 * [backup-simplify]: Simplify 0 into 0
3.749 * [backup-simplify]: Simplify 0 into 0
3.749 * [backup-simplify]: Simplify 0 into 0
3.754 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.754 * [backup-simplify]: Simplify (+ (* -1 0) (* 0 1)) into 0
3.754 * [backup-simplify]: Simplify 0 into 0
3.755 * [backup-simplify]: Simplify (- 0) into 0
3.755 * [backup-simplify]: Simplify (+ 0 0) into 0
3.756 * [backup-simplify]: Simplify (+ 0 0) into 0
3.756 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 1) (* 0 (- y)))))) into 0
3.757 * [taylor]: Taking taylor expansion of 0 in y
3.757 * [backup-simplify]: Simplify 0 into 0
3.757 * [backup-simplify]: Simplify 0 into 0
3.757 * [backup-simplify]: Simplify 0 into 0
3.757 * [backup-simplify]: Simplify (+ (* -1 (pow (* y 1) 2)) (* 1 (pow (* 1 x) 2))) into (- (pow x 2) (pow y 2))
3.757 * [backup-simplify]: Simplify (* (+ (/ 1 x) (/ 1 y)) (- (/ 1 x) (/ 1 y))) into (* (+ (/ 1 x) (/ 1 y)) (- (/ 1 x) (/ 1 y)))
3.757 * [approximate]: Taking taylor expansion of (* (+ (/ 1 x) (/ 1 y)) (- (/ 1 x) (/ 1 y))) in (x y) around 0
3.757 * [taylor]: Taking taylor expansion of (* (+ (/ 1 x) (/ 1 y)) (- (/ 1 x) (/ 1 y))) in y
3.757 * [taylor]: Taking taylor expansion of (+ (/ 1 x) (/ 1 y)) in y
3.757 * [taylor]: Taking taylor expansion of (/ 1 x) in y
3.757 * [taylor]: Taking taylor expansion of x in y
3.757 * [backup-simplify]: Simplify x into x
3.757 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
3.757 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.757 * [taylor]: Taking taylor expansion of y in y
3.757 * [backup-simplify]: Simplify 0 into 0
3.757 * [backup-simplify]: Simplify 1 into 1
3.758 * [backup-simplify]: Simplify (/ 1 1) into 1
3.758 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
3.758 * [taylor]: Taking taylor expansion of (/ 1 x) in y
3.758 * [taylor]: Taking taylor expansion of x in y
3.758 * [backup-simplify]: Simplify x into x
3.758 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
3.758 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.758 * [taylor]: Taking taylor expansion of y in y
3.758 * [backup-simplify]: Simplify 0 into 0
3.758 * [backup-simplify]: Simplify 1 into 1
3.758 * [backup-simplify]: Simplify (/ 1 1) into 1
3.758 * [taylor]: Taking taylor expansion of (* (+ (/ 1 x) (/ 1 y)) (- (/ 1 x) (/ 1 y))) in x
3.758 * [taylor]: Taking taylor expansion of (+ (/ 1 x) (/ 1 y)) in x
3.758 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.758 * [taylor]: Taking taylor expansion of x in x
3.758 * [backup-simplify]: Simplify 0 into 0
3.758 * [backup-simplify]: Simplify 1 into 1
3.759 * [backup-simplify]: Simplify (/ 1 1) into 1
3.759 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.759 * [taylor]: Taking taylor expansion of y in x
3.759 * [backup-simplify]: Simplify y into y
3.759 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
3.759 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
3.759 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.759 * [taylor]: Taking taylor expansion of x in x
3.759 * [backup-simplify]: Simplify 0 into 0
3.759 * [backup-simplify]: Simplify 1 into 1
3.759 * [backup-simplify]: Simplify (/ 1 1) into 1
3.759 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.759 * [taylor]: Taking taylor expansion of y in x
3.759 * [backup-simplify]: Simplify y into y
3.759 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
3.759 * [taylor]: Taking taylor expansion of (* (+ (/ 1 x) (/ 1 y)) (- (/ 1 x) (/ 1 y))) in x
3.759 * [taylor]: Taking taylor expansion of (+ (/ 1 x) (/ 1 y)) in x
3.759 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.759 * [taylor]: Taking taylor expansion of x in x
3.759 * [backup-simplify]: Simplify 0 into 0
3.759 * [backup-simplify]: Simplify 1 into 1
3.759 * [backup-simplify]: Simplify (/ 1 1) into 1
3.759 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.759 * [taylor]: Taking taylor expansion of y in x
3.759 * [backup-simplify]: Simplify y into y
3.760 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
3.760 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
3.760 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.760 * [taylor]: Taking taylor expansion of x in x
3.760 * [backup-simplify]: Simplify 0 into 0
3.760 * [backup-simplify]: Simplify 1 into 1
3.760 * [backup-simplify]: Simplify (/ 1 1) into 1
3.760 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.760 * [taylor]: Taking taylor expansion of y in x
3.760 * [backup-simplify]: Simplify y into y
3.760 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
3.760 * [backup-simplify]: Simplify (+ 1 0) into 1
3.761 * [backup-simplify]: Simplify (+ 1 0) into 1
3.761 * [backup-simplify]: Simplify (* 1 1) into 1
3.761 * [taylor]: Taking taylor expansion of 1 in y
3.761 * [backup-simplify]: Simplify 1 into 1
3.761 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.762 * [backup-simplify]: Simplify (- (/ 1 y)) into (- (/ 1 y))
3.762 * [backup-simplify]: Simplify (+ 0 (- (/ 1 y))) into (- (/ 1 y))
3.762 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.762 * [backup-simplify]: Simplify (+ 0 (/ 1 y)) into (/ 1 y)
3.762 * [backup-simplify]: Simplify (+ (* 1 (- (/ 1 y))) (* (/ 1 y) 1)) into 0
3.762 * [taylor]: Taking taylor expansion of 0 in y
3.762 * [backup-simplify]: Simplify 0 into 0
3.763 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.763 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
3.763 * [backup-simplify]: Simplify (- 0) into 0
3.764 * [backup-simplify]: Simplify (+ 0 0) into 0
3.764 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.764 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
3.765 * [backup-simplify]: Simplify (+ 0 0) into 0
3.765 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (/ 1 y) (- (/ 1 y))) (* 0 1))) into (- (/ 1 (pow y 2)))
3.765 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
3.765 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
3.765 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.765 * [taylor]: Taking taylor expansion of y in y
3.765 * [backup-simplify]: Simplify 0 into 0
3.765 * [backup-simplify]: Simplify 1 into 1
3.766 * [backup-simplify]: Simplify (* 1 1) into 1
3.766 * [backup-simplify]: Simplify (/ 1 1) into 1
3.766 * [backup-simplify]: Simplify (- 1) into -1
3.766 * [backup-simplify]: Simplify -1 into -1
3.766 * [backup-simplify]: Simplify 1 into 1
3.767 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.767 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
3.767 * [backup-simplify]: Simplify (- 0) into 0
3.767 * [backup-simplify]: Simplify (+ 0 0) into 0
3.768 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.768 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
3.768 * [backup-simplify]: Simplify (+ 0 0) into 0
3.769 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (/ 1 y) 0) (+ (* 0 (- (/ 1 y))) (* 0 1)))) into 0
3.769 * [taylor]: Taking taylor expansion of 0 in y
3.769 * [backup-simplify]: Simplify 0 into 0
3.770 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.770 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.770 * [backup-simplify]: Simplify (- 0) into 0
3.770 * [backup-simplify]: Simplify 0 into 0
3.770 * [backup-simplify]: Simplify 0 into 0
3.771 * [backup-simplify]: Simplify 0 into 0
3.771 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.771 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
3.772 * [backup-simplify]: Simplify (- 0) into 0
3.772 * [backup-simplify]: Simplify (+ 0 0) into 0
3.772 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.773 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
3.773 * [backup-simplify]: Simplify (+ 0 0) into 0
3.774 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (/ 1 y) 0) (+ (* 0 0) (+ (* 0 (- (/ 1 y))) (* 0 1))))) into 0
3.774 * [taylor]: Taking taylor expansion of 0 in y
3.774 * [backup-simplify]: Simplify 0 into 0
3.774 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
3.775 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.776 * [backup-simplify]: Simplify (- 0) into 0
3.776 * [backup-simplify]: Simplify 0 into 0
3.776 * [backup-simplify]: Simplify 0 into 0
3.776 * [backup-simplify]: Simplify 0 into 0
3.777 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 x))) 2)) (* -1 (pow (* (/ 1 (/ 1 y)) 1) 2))) into (- (pow x 2) (pow y 2))
3.777 * [backup-simplify]: Simplify (* (+ (/ 1 (- x)) (/ 1 (- y))) (- (/ 1 (- x)) (/ 1 (- y)))) into (* -1 (* (- (/ 1 y) (/ 1 x)) (+ (/ 1 x) (/ 1 y))))
3.777 * [approximate]: Taking taylor expansion of (* -1 (* (- (/ 1 y) (/ 1 x)) (+ (/ 1 x) (/ 1 y)))) in (x y) around 0
3.777 * [taylor]: Taking taylor expansion of (* -1 (* (- (/ 1 y) (/ 1 x)) (+ (/ 1 x) (/ 1 y)))) in y
3.777 * [taylor]: Taking taylor expansion of -1 in y
3.777 * [backup-simplify]: Simplify -1 into -1
3.777 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) (+ (/ 1 x) (/ 1 y))) in y
3.777 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
3.777 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.777 * [taylor]: Taking taylor expansion of y in y
3.777 * [backup-simplify]: Simplify 0 into 0
3.777 * [backup-simplify]: Simplify 1 into 1
3.778 * [backup-simplify]: Simplify (/ 1 1) into 1
3.778 * [taylor]: Taking taylor expansion of (/ 1 x) in y
3.778 * [taylor]: Taking taylor expansion of x in y
3.778 * [backup-simplify]: Simplify x into x
3.778 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
3.778 * [taylor]: Taking taylor expansion of (+ (/ 1 x) (/ 1 y)) in y
3.778 * [taylor]: Taking taylor expansion of (/ 1 x) in y
3.778 * [taylor]: Taking taylor expansion of x in y
3.778 * [backup-simplify]: Simplify x into x
3.778 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
3.778 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.778 * [taylor]: Taking taylor expansion of y in y
3.778 * [backup-simplify]: Simplify 0 into 0
3.778 * [backup-simplify]: Simplify 1 into 1
3.779 * [backup-simplify]: Simplify (/ 1 1) into 1
3.779 * [taylor]: Taking taylor expansion of (* -1 (* (- (/ 1 y) (/ 1 x)) (+ (/ 1 x) (/ 1 y)))) in x
3.779 * [taylor]: Taking taylor expansion of -1 in x
3.779 * [backup-simplify]: Simplify -1 into -1
3.779 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) (+ (/ 1 x) (/ 1 y))) in x
3.779 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
3.779 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.779 * [taylor]: Taking taylor expansion of y in x
3.779 * [backup-simplify]: Simplify y into y
3.779 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
3.779 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.779 * [taylor]: Taking taylor expansion of x in x
3.779 * [backup-simplify]: Simplify 0 into 0
3.779 * [backup-simplify]: Simplify 1 into 1
3.780 * [backup-simplify]: Simplify (/ 1 1) into 1
3.780 * [taylor]: Taking taylor expansion of (+ (/ 1 x) (/ 1 y)) in x
3.780 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.780 * [taylor]: Taking taylor expansion of x in x
3.780 * [backup-simplify]: Simplify 0 into 0
3.780 * [backup-simplify]: Simplify 1 into 1
3.780 * [backup-simplify]: Simplify (/ 1 1) into 1
3.780 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.780 * [taylor]: Taking taylor expansion of y in x
3.780 * [backup-simplify]: Simplify y into y
3.780 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
3.780 * [taylor]: Taking taylor expansion of (* -1 (* (- (/ 1 y) (/ 1 x)) (+ (/ 1 x) (/ 1 y)))) in x
3.780 * [taylor]: Taking taylor expansion of -1 in x
3.780 * [backup-simplify]: Simplify -1 into -1
3.780 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) (+ (/ 1 x) (/ 1 y))) in x
3.780 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
3.780 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.781 * [taylor]: Taking taylor expansion of y in x
3.781 * [backup-simplify]: Simplify y into y
3.781 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
3.781 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.781 * [taylor]: Taking taylor expansion of x in x
3.781 * [backup-simplify]: Simplify 0 into 0
3.781 * [backup-simplify]: Simplify 1 into 1
3.781 * [backup-simplify]: Simplify (/ 1 1) into 1
3.781 * [taylor]: Taking taylor expansion of (+ (/ 1 x) (/ 1 y)) in x
3.781 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.781 * [taylor]: Taking taylor expansion of x in x
3.781 * [backup-simplify]: Simplify 0 into 0
3.781 * [backup-simplify]: Simplify 1 into 1
3.782 * [backup-simplify]: Simplify (/ 1 1) into 1
3.782 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.782 * [taylor]: Taking taylor expansion of y in x
3.782 * [backup-simplify]: Simplify y into y
3.782 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
3.782 * [backup-simplify]: Simplify (- 1) into -1
3.783 * [backup-simplify]: Simplify (+ 0 -1) into -1
3.783 * [backup-simplify]: Simplify (+ 1 0) into 1
3.784 * [backup-simplify]: Simplify (* -1 1) into -1
3.784 * [backup-simplify]: Simplify (* -1 -1) into 1
3.784 * [taylor]: Taking taylor expansion of 1 in y
3.784 * [backup-simplify]: Simplify 1 into 1
3.785 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.785 * [backup-simplify]: Simplify (+ 0 (/ 1 y)) into (/ 1 y)
3.786 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.787 * [backup-simplify]: Simplify (- 0) into 0
3.787 * [backup-simplify]: Simplify (+ (/ 1 y) 0) into (/ 1 y)
3.787 * [backup-simplify]: Simplify (+ (* -1 (/ 1 y)) (* (/ 1 y) 1)) into 0
3.788 * [backup-simplify]: Simplify (+ (* -1 0) (* 0 -1)) into 0
3.788 * [taylor]: Taking taylor expansion of 0 in y
3.788 * [backup-simplify]: Simplify 0 into 0
3.789 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.789 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
3.790 * [backup-simplify]: Simplify (+ 0 0) into 0
3.790 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
3.791 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.791 * [backup-simplify]: Simplify (- 0) into 0
3.792 * [backup-simplify]: Simplify (+ 0 0) into 0
3.793 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* (/ 1 y) (/ 1 y)) (* 0 1))) into (/ 1 (pow y 2))
3.794 * [backup-simplify]: Simplify (+ (* -1 (/ 1 (pow y 2))) (+ (* 0 0) (* 0 -1))) into (- (/ 1 (pow y 2)))
3.794 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
3.794 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
3.794 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.794 * [taylor]: Taking taylor expansion of y in y
3.794 * [backup-simplify]: Simplify 0 into 0
3.794 * [backup-simplify]: Simplify 1 into 1
3.795 * [backup-simplify]: Simplify (* 1 1) into 1
3.795 * [backup-simplify]: Simplify (/ 1 1) into 1
3.796 * [backup-simplify]: Simplify (- 1) into -1
3.796 * [backup-simplify]: Simplify -1 into -1
3.796 * [backup-simplify]: Simplify 1 into 1
3.797 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.797 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
3.797 * [backup-simplify]: Simplify (+ 0 0) into 0
3.798 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
3.798 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.799 * [backup-simplify]: Simplify (- 0) into 0
3.799 * [backup-simplify]: Simplify (+ 0 0) into 0
3.800 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* (/ 1 y) 0) (+ (* 0 (/ 1 y)) (* 0 1)))) into 0
3.802 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 (/ 1 (pow y 2))) (+ (* 0 0) (* 0 -1)))) into 0
3.802 * [taylor]: Taking taylor expansion of 0 in y
3.802 * [backup-simplify]: Simplify 0 into 0
3.803 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.803 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.804 * [backup-simplify]: Simplify (- 0) into 0
3.804 * [backup-simplify]: Simplify 0 into 0
3.804 * [backup-simplify]: Simplify 0 into 0
3.804 * [backup-simplify]: Simplify 0 into 0
3.805 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.805 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
3.806 * [backup-simplify]: Simplify (+ 0 0) into 0
3.806 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
3.807 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.808 * [backup-simplify]: Simplify (- 0) into 0
3.808 * [backup-simplify]: Simplify (+ 0 0) into 0
3.810 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* (/ 1 y) 0) (+ (* 0 0) (+ (* 0 (/ 1 y)) (* 0 1))))) into 0
3.811 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 (/ 1 (pow y 2))) (+ (* 0 0) (* 0 -1))))) into 0
3.812 * [taylor]: Taking taylor expansion of 0 in y
3.812 * [backup-simplify]: Simplify 0 into 0
3.813 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
3.814 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.814 * [backup-simplify]: Simplify (- 0) into 0
3.814 * [backup-simplify]: Simplify 0 into 0
3.815 * [backup-simplify]: Simplify 0 into 0
3.815 * [backup-simplify]: Simplify 0 into 0
3.815 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 (- x)))) 2)) (* -1 (pow (* (/ 1 (/ 1 (- y))) 1) 2))) into (- (pow x 2) (pow y 2))
3.815 * * * [progress]: simplifying candidates
3.816 * [simplify]: Simplifying:
  (* (+ x y) (- x y))
  (+ (log (+ x y)) (log (- x y)))
  (log (* (+ x y) (- x y)))
  (exp (* (+ x y) (- x y)))
  (* (* (* (+ x y) (+ x y)) (+ x y)) (* (* (- x y) (- x y)) (- x y)))
  (* (cbrt (* (+ x y) (- x y))) (cbrt (* (+ x y) (- x y))))
  (cbrt (* (+ x y) (- x y)))
  (* (* (* (+ x y) (- x y)) (* (+ x y) (- x y))) (* (+ x y) (- x y)))
  (sqrt (* (+ x y) (- x y)))
  (sqrt (* (+ x y) (- x y)))
  (* (+ (pow x 3) (pow y 3)) (- (pow x 3) (pow y 3)))
  (* (+ (* x x) (- (* y y) (* x y))) (+ (* x x) (+ (* y y) (* x y))))
  (* (+ (pow x 3) (pow y 3)) (- (* x x) (* y y)))
  (* (+ (* x x) (- (* y y) (* x y))) (+ x y))
  (* (- (* x x) (* y y)) (- (pow x 3) (pow y 3)))
  (* (- x y) (+ (* x x) (+ (* y y) (* x y))))
  (* (- (* x x) (* y y)) (- (* x x) (* y y)))
  (* (- x y) (+ x y))
  (* (sqrt (+ x y)) (sqrt (- x y)))
  (* (sqrt (+ x y)) (sqrt (- x 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))
  (* (+ x y) (* (cbrt (- x y)) (cbrt (- x y))))
  (* (+ x y) (sqrt (- x y)))
  (* (+ x y) 1)
  (* (+ x y) (+ (sqrt x) (sqrt y)))
  (* (+ x y) 1)
  (* (cbrt (+ x y)) (- x y))
  (* (sqrt (+ x y)) (- x y))
  (* (+ x y) (- x y))
  (* (+ x y) (- x y))
  (* (+ x y) (- (pow x 3) (pow y 3)))
  (* (+ x y) (- (* x x) (* y y)))
  (* (+ (pow x 3) (pow y 3)) (- x y))
  (* (- (* x x) (* y y)) (- x y))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
3.818 * * [simplify]: iteration 0: 70 enodes
3.837 * * [simplify]: iteration 1: 213 enodes
3.999 * * [simplify]: iteration 2: 1544 enodes
4.712 * * [simplify]: iteration complete: 5002 enodes
4.713 * * [simplify]: Extracting #0: cost 27 inf + 0
4.715 * * [simplify]: Extracting #1: cost 1029 inf + 0
4.720 * * [simplify]: Extracting #2: cost 1939 inf + 604
4.729 * * [simplify]: Extracting #3: cost 1359 inf + 10661
4.746 * * [simplify]: Extracting #4: cost 117 inf + 22533
4.759 * * [simplify]: Extracting #5: cost 35 inf + 23072
4.772 * * [simplify]: Extracting #6: cost 24 inf + 23141
4.780 * * [simplify]: Extracting #7: cost 5 inf + 23215
4.789 * * [simplify]: Extracting #8: cost 0 inf + 23240
4.800 * [simplify]: Simplified to:
  (* (+ x y) (- x y))
  (log (* (+ x y) (- x y)))
  (log (* (+ x y) (- x y)))
  (pow (exp (+ x y)) (- x y))
  (pow (* (+ x y) (- x y)) 3)
  (* (cbrt (* (+ x y) (- x y))) (cbrt (* (+ x y) (- x y))))
  (cbrt (* (+ x y) (- x y)))
  (pow (* (+ x y) (- x y)) 3)
  (sqrt (* (+ x y) (- x y)))
  (sqrt (* (+ x y) (- x y)))
  (* (- (pow x 3) (pow y 3)) (+ (pow y 3) (pow x 3)))
  (* (+ (* y y) (* x (+ x y))) (+ (* x x) (* y (- y x))))
  (* (* (+ x y) (- x y)) (+ (pow y 3) (pow x 3)))
  (* (+ x y) (+ (* x x) (* y (- y x))))
  (* (* (+ x y) (- x y)) (- (pow x 3) (pow y 3)))
  (* (- x y) (+ (* y y) (* x (+ x y))))
  (* (- x y) (* (* (+ x y) (+ x y)) (- x y)))
  (* (+ x y) (- x y))
  (* (sqrt (- x y)) (sqrt (+ x y)))
  (* (sqrt (- x y)) (sqrt (+ x y)))
  (* x (+ x y))
  (* (- y) (+ x y))
  (* x (+ x y))
  (* (- y) (+ x y))
  (* x (+ x y))
  (* (- y) (+ x y))
  (* x (+ x y))
  (* (- y) (+ x y))
  (* (* (+ x y) (cbrt (- x y))) (cbrt (- x y)))
  (* (sqrt (- x y)) (+ x y))
  (+ x y)
  (* (+ x y) (+ (sqrt x) (sqrt y)))
  (+ x y)
  (* (- x y) (cbrt (+ x y)))
  (* (sqrt (+ x y)) (- x y))
  (* (+ x y) (- x y))
  (* (+ x y) (- x y))
  (* (+ x y) (- (pow x 3) (pow y 3)))
  (* (* (+ x y) (+ x y)) (- x y))
  (* (- x y) (+ (pow y 3) (pow x 3)))
  (* (* (+ x y) (- x y)) (- x y))
  (* (+ x y) (- x y))
  (* (+ x y) (- x y))
  (* (+ x y) (- x y))
4.801 * * * [progress]: adding candidates to table
4.926 * [progress]: [Phase 3 of 3] Extracting.
4.926 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (- (* x x) (* y y)))> #<alt (λ (x y) (* (+ x y) (- x y)))>)
4.926 * * * [regime-changes]: Trying 5 branch expressions: ((* y y) (* x x) (- (* x x) (* y y)) y x)
4.926 * * * * [regimes]: Trying to branch on (* y y) from (#<alt (λ (x y) (- (* x x) (* y y)))> #<alt (λ (x y) (* (+ x y) (- x y)))>)
4.953 * * * * [regimes]: Trying to branch on (* x x) from (#<alt (λ (x y) (- (* x x) (* y y)))> #<alt (λ (x y) (* (+ x y) (- x y)))>)
4.979 * * * * [regimes]: Trying to branch on (- (* x x) (* y y)) from (#<alt (λ (x y) (- (* x x) (* y y)))> #<alt (λ (x y) (* (+ x y) (- x y)))>)
5.011 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) (- (* x x) (* y y)))> #<alt (λ (x y) (* (+ x y) (- x y)))>)
5.062 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) (- (* x x) (* y y)))> #<alt (λ (x y) (* (+ x y) (- x y)))>)
5.116 * * * [regime]: Found split indices: #<option (#s(si 1 255))>
5.117 * [simplify]: Simplifying:
  (* (+ x y) (- x y))
5.117 * * [simplify]: iteration 0: 5 enodes
5.117 * * [simplify]: iteration 1: 7 enodes
5.118 * * [simplify]: iteration complete: 7 enodes
5.118 * * [simplify]: Extracting #0: cost 1 inf + 0
5.118 * * [simplify]: Extracting #1: cost 3 inf + 0
5.118 * * [simplify]: Extracting #2: cost 5 inf + 0
5.118 * * [simplify]: Extracting #3: cost 3 inf + 2
5.118 * * [simplify]: Extracting #4: cost 0 inf + 15
5.118 * [simplify]: Simplified to:
  (* (+ y x) (- x y))
6.912 * [regime-testing]: Baseline error score: 0.0007500937617202151
6.916 * [regime-testing]: Oracle error score: 0.00037504688086010754
6.924 * [regime-testing]: End program error score: 0.0007500937617202151