39.502 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.036 * * * [progress]: [2/2] Setting up program.
0.040 * [progress]: [Phase 2 of 3] Improving.
0.040 * [simplify]: Simplifying:
  (- (* x x) (* y y))
0.041 * * [simplify]: iteration 0: 5 enodes
0.042 * * [simplify]: iteration 1: 11 enodes
0.043 * * [simplify]: iteration 2: 18 enodes
0.046 * * [simplify]: iteration 3: 35 enodes
0.055 * * [simplify]: iteration 4: 67 enodes
0.076 * * [simplify]: iteration 5: 160 enodes
0.132 * * [simplify]: iteration 6: 366 enodes
0.306 * * [simplify]: iteration 7: 901 enodes
1.738 * * [simplify]: iteration 8: 3866 enodes
3.115 * * [simplify]: iteration complete: 5000 enodes
3.115 * * [simplify]: Extracting #0: cost 1 inf + 0
3.116 * * [simplify]: Extracting #1: cost 251 inf + 0
3.121 * * [simplify]: Extracting #2: cost 671 inf + 485
3.126 * * [simplify]: Extracting #3: cost 153 inf + 5304
3.132 * * [simplify]: Extracting #4: cost 0 inf + 6977
3.136 * [simplify]: Simplified to:
  (- (* x x) (* y y))
3.136 * * [progress]: iteration 1 / 4
3.136 * * * [progress]: picking best candidate
3.139 * * * * [pick]: Picked  #<alt (λ (x y) (- (* x x) (* y y)))>
3.139 * * * [progress]: localizing error
3.147 * * * [progress]: generating rewritten candidates
3.147 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
3.154 * * * [progress]: generating series expansions
3.154 * * * * [progress]: [ 1 / 1 ] generating series at (2)
3.154 * [backup-simplify]: Simplify (- (* x x) (* y y)) into (- (pow x 2) (pow y 2))
3.155 * [approximate]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in (x y) around 0
3.155 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in y
3.155 * [taylor]: Taking taylor expansion of (pow x 2) in y
3.155 * [taylor]: Taking taylor expansion of x in y
3.155 * [backup-simplify]: Simplify x into x
3.155 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.155 * [taylor]: Taking taylor expansion of y in y
3.155 * [backup-simplify]: Simplify 0 into 0
3.155 * [backup-simplify]: Simplify 1 into 1
3.155 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
3.155 * [taylor]: Taking taylor expansion of (pow x 2) in x
3.155 * [taylor]: Taking taylor expansion of x in x
3.155 * [backup-simplify]: Simplify 0 into 0
3.155 * [backup-simplify]: Simplify 1 into 1
3.155 * [taylor]: Taking taylor expansion of (pow y 2) in x
3.155 * [taylor]: Taking taylor expansion of y in x
3.155 * [backup-simplify]: Simplify y into y
3.155 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
3.155 * [taylor]: Taking taylor expansion of (pow x 2) in x
3.155 * [taylor]: Taking taylor expansion of x in x
3.155 * [backup-simplify]: Simplify 0 into 0
3.155 * [backup-simplify]: Simplify 1 into 1
3.155 * [taylor]: Taking taylor expansion of (pow y 2) in x
3.155 * [taylor]: Taking taylor expansion of y in x
3.155 * [backup-simplify]: Simplify y into y
3.155 * [backup-simplify]: Simplify (* y y) into (pow y 2)
3.155 * [backup-simplify]: Simplify (- (pow y 2)) into (- (pow y 2))
3.155 * [backup-simplify]: Simplify (+ 0 (- (pow y 2))) into (- (pow y 2))
3.155 * [taylor]: Taking taylor expansion of (- (pow y 2)) in y
3.155 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.155 * [taylor]: Taking taylor expansion of y in y
3.155 * [backup-simplify]: Simplify 0 into 0
3.155 * [backup-simplify]: Simplify 1 into 1
3.155 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
3.156 * [backup-simplify]: Simplify (- 0) into 0
3.156 * [backup-simplify]: Simplify (+ 0 0) into 0
3.156 * [taylor]: Taking taylor expansion of 0 in y
3.156 * [backup-simplify]: Simplify 0 into 0
3.156 * [backup-simplify]: Simplify 0 into 0
3.156 * [backup-simplify]: Simplify (* 1 1) into 1
3.157 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
3.157 * [backup-simplify]: Simplify (- 0) into 0
3.157 * [backup-simplify]: Simplify (+ 1 0) into 1
3.157 * [taylor]: Taking taylor expansion of 1 in y
3.157 * [backup-simplify]: Simplify 1 into 1
3.157 * [backup-simplify]: Simplify 1 into 1
3.157 * [backup-simplify]: Simplify 0 into 0
3.157 * [backup-simplify]: Simplify (* 1 1) into 1
3.158 * [backup-simplify]: Simplify (- 1) into -1
3.158 * [backup-simplify]: Simplify -1 into -1
3.158 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.159 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (+ (* 0 0) (* 0 y)))) into 0
3.159 * [backup-simplify]: Simplify (- 0) into 0
3.159 * [backup-simplify]: Simplify (+ 0 0) into 0
3.159 * [taylor]: Taking taylor expansion of 0 in y
3.159 * [backup-simplify]: Simplify 0 into 0
3.159 * [backup-simplify]: Simplify 0 into 0
3.159 * [backup-simplify]: Simplify 0 into 0
3.159 * [backup-simplify]: Simplify 0 into 0
3.160 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.160 * [backup-simplify]: Simplify (- 0) into 0
3.160 * [backup-simplify]: Simplify 0 into 0
3.161 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
3.162 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 y))))) into 0
3.162 * [backup-simplify]: Simplify (- 0) into 0
3.162 * [backup-simplify]: Simplify (+ 0 0) into 0
3.162 * [taylor]: Taking taylor expansion of 0 in y
3.162 * [backup-simplify]: Simplify 0 into 0
3.162 * [backup-simplify]: Simplify 0 into 0
3.162 * [backup-simplify]: Simplify 0 into 0
3.163 * [backup-simplify]: Simplify (+ (* -1 (pow (* y 1) 2)) (* 1 (pow (* 1 x) 2))) into (- (pow x 2) (pow y 2))
3.163 * [backup-simplify]: Simplify (- (* (/ 1 x) (/ 1 x)) (* (/ 1 y) (/ 1 y))) into (- (/ 1 (pow x 2)) (/ 1 (pow y 2)))
3.163 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
3.163 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
3.163 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
3.163 * [taylor]: Taking taylor expansion of (pow x 2) in y
3.163 * [taylor]: Taking taylor expansion of x in y
3.163 * [backup-simplify]: Simplify x into x
3.163 * [backup-simplify]: Simplify (* x x) into (pow x 2)
3.163 * [backup-simplify]: Simplify (/ 1 (pow x 2)) into (/ 1 (pow x 2))
3.163 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
3.168 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.168 * [taylor]: Taking taylor expansion of y in y
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 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
3.169 * [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 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
3.170 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
3.170 * [taylor]: Taking taylor expansion of (pow x 2) in x
3.170 * [taylor]: Taking taylor expansion of x in x
3.170 * [backup-simplify]: Simplify 0 into 0
3.170 * [backup-simplify]: Simplify 1 into 1
3.170 * [backup-simplify]: Simplify (* 1 1) into 1
3.171 * [backup-simplify]: Simplify (/ 1 1) into 1
3.171 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
3.171 * [taylor]: Taking taylor expansion of (pow y 2) in x
3.171 * [taylor]: Taking taylor expansion of y in x
3.171 * [backup-simplify]: Simplify y into y
3.171 * [backup-simplify]: Simplify (* y y) into (pow y 2)
3.171 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
3.171 * [backup-simplify]: Simplify (+ 1 0) into 1
3.171 * [taylor]: Taking taylor expansion of 1 in y
3.171 * [backup-simplify]: Simplify 1 into 1
3.172 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.173 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.173 * [backup-simplify]: Simplify (+ 0 0) into 0
3.173 * [taylor]: Taking taylor expansion of 0 in y
3.173 * [backup-simplify]: Simplify 0 into 0
3.174 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
3.174 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.174 * [backup-simplify]: Simplify (- (/ 1 (pow y 2))) into (- (/ 1 (pow y 2)))
3.175 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow y 2)))) into (- (/ 1 (pow y 2)))
3.175 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
3.175 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
3.175 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.175 * [taylor]: Taking taylor expansion of y in y
3.175 * [backup-simplify]: Simplify 0 into 0
3.175 * [backup-simplify]: Simplify 1 into 1
3.175 * [backup-simplify]: Simplify (* 1 1) into 1
3.175 * [backup-simplify]: Simplify (/ 1 1) into 1
3.176 * [backup-simplify]: Simplify (- 1) into -1
3.176 * [backup-simplify]: Simplify -1 into -1
3.176 * [backup-simplify]: Simplify 1 into 1
3.176 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
3.177 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.177 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
3.177 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))))) into 0
3.178 * [backup-simplify]: Simplify (- 0) into 0
3.178 * [backup-simplify]: Simplify (+ 0 0) into 0
3.178 * [taylor]: Taking taylor expansion of 0 in y
3.178 * [backup-simplify]: Simplify 0 into 0
3.179 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.179 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.179 * [backup-simplify]: Simplify (- 0) into 0
3.179 * [backup-simplify]: Simplify 0 into 0
3.180 * [backup-simplify]: Simplify 0 into 0
3.180 * [backup-simplify]: Simplify 0 into 0
3.180 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
3.181 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.181 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
3.182 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))) (* 0 (/ 0 (pow y 2))))) into 0
3.182 * [backup-simplify]: Simplify (- 0) into 0
3.182 * [backup-simplify]: Simplify (+ 0 0) into 0
3.182 * [taylor]: Taking taylor expansion of 0 in y
3.182 * [backup-simplify]: Simplify 0 into 0
3.183 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
3.184 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.184 * [backup-simplify]: Simplify (- 0) into 0
3.184 * [backup-simplify]: Simplify 0 into 0
3.184 * [backup-simplify]: Simplify 0 into 0
3.184 * [backup-simplify]: Simplify 0 into 0
3.185 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 x))) 2)) (* -1 (pow (* (/ 1 (/ 1 y)) 1) 2))) into (- (pow x 2) (pow y 2))
3.185 * [backup-simplify]: Simplify (- (* (/ 1 (- x)) (/ 1 (- x))) (* (/ 1 (- y)) (/ 1 (- y)))) into (- (/ 1 (pow x 2)) (/ 1 (pow y 2)))
3.185 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
3.185 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
3.185 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
3.185 * [taylor]: Taking taylor expansion of (pow x 2) in y
3.185 * [taylor]: Taking taylor expansion of x in y
3.185 * [backup-simplify]: Simplify x into x
3.185 * [backup-simplify]: Simplify (* x x) into (pow x 2)
3.185 * [backup-simplify]: Simplify (/ 1 (pow x 2)) into (/ 1 (pow x 2))
3.185 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
3.185 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.185 * [taylor]: Taking taylor expansion of y in y
3.185 * [backup-simplify]: Simplify 0 into 0
3.185 * [backup-simplify]: Simplify 1 into 1
3.186 * [backup-simplify]: Simplify (* 1 1) into 1
3.186 * [backup-simplify]: Simplify (/ 1 1) into 1
3.186 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
3.186 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
3.186 * [taylor]: Taking taylor expansion of (pow x 2) in x
3.186 * [taylor]: Taking taylor expansion of x in x
3.186 * [backup-simplify]: Simplify 0 into 0
3.186 * [backup-simplify]: Simplify 1 into 1
3.186 * [backup-simplify]: Simplify (* 1 1) into 1
3.187 * [backup-simplify]: Simplify (/ 1 1) into 1
3.187 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
3.187 * [taylor]: Taking taylor expansion of (pow y 2) in x
3.187 * [taylor]: Taking taylor expansion of y in x
3.187 * [backup-simplify]: Simplify y into y
3.187 * [backup-simplify]: Simplify (* y y) into (pow y 2)
3.187 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
3.187 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
3.187 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
3.187 * [taylor]: Taking taylor expansion of (pow x 2) in x
3.187 * [taylor]: Taking taylor expansion of x in x
3.187 * [backup-simplify]: Simplify 0 into 0
3.187 * [backup-simplify]: Simplify 1 into 1
3.187 * [backup-simplify]: Simplify (* 1 1) into 1
3.188 * [backup-simplify]: Simplify (/ 1 1) into 1
3.188 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
3.188 * [taylor]: Taking taylor expansion of (pow y 2) in x
3.188 * [taylor]: Taking taylor expansion of y in x
3.188 * [backup-simplify]: Simplify y into y
3.188 * [backup-simplify]: Simplify (* y y) into (pow y 2)
3.188 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
3.188 * [backup-simplify]: Simplify (+ 1 0) into 1
3.188 * [taylor]: Taking taylor expansion of 1 in y
3.188 * [backup-simplify]: Simplify 1 into 1
3.189 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.189 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.190 * [backup-simplify]: Simplify (+ 0 0) into 0
3.190 * [taylor]: Taking taylor expansion of 0 in y
3.190 * [backup-simplify]: Simplify 0 into 0
3.190 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
3.191 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.191 * [backup-simplify]: Simplify (- (/ 1 (pow y 2))) into (- (/ 1 (pow y 2)))
3.191 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow y 2)))) into (- (/ 1 (pow y 2)))
3.191 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
3.191 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
3.191 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.191 * [taylor]: Taking taylor expansion of y in y
3.191 * [backup-simplify]: Simplify 0 into 0
3.191 * [backup-simplify]: Simplify 1 into 1
3.191 * [backup-simplify]: Simplify (* 1 1) into 1
3.191 * [backup-simplify]: Simplify (/ 1 1) into 1
3.192 * [backup-simplify]: Simplify (- 1) into -1
3.192 * [backup-simplify]: Simplify -1 into -1
3.192 * [backup-simplify]: Simplify 1 into 1
3.192 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
3.193 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.193 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
3.193 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))))) into 0
3.193 * [backup-simplify]: Simplify (- 0) into 0
3.194 * [backup-simplify]: Simplify (+ 0 0) into 0
3.194 * [taylor]: Taking taylor expansion of 0 in y
3.194 * [backup-simplify]: Simplify 0 into 0
3.194 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.194 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.195 * [backup-simplify]: Simplify (- 0) into 0
3.195 * [backup-simplify]: Simplify 0 into 0
3.195 * [backup-simplify]: Simplify 0 into 0
3.195 * [backup-simplify]: Simplify 0 into 0
3.195 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
3.196 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.196 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
3.196 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))) (* 0 (/ 0 (pow y 2))))) into 0
3.197 * [backup-simplify]: Simplify (- 0) into 0
3.197 * [backup-simplify]: Simplify (+ 0 0) into 0
3.197 * [taylor]: Taking taylor expansion of 0 in y
3.197 * [backup-simplify]: Simplify 0 into 0
3.197 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
3.198 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.198 * [backup-simplify]: Simplify (- 0) into 0
3.198 * [backup-simplify]: Simplify 0 into 0
3.198 * [backup-simplify]: Simplify 0 into 0
3.198 * [backup-simplify]: Simplify 0 into 0
3.198 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 (- x)))) 2)) (* -1 (pow (* (/ 1 (/ 1 (- y))) 1) 2))) into (- (pow x 2) (pow y 2))
3.199 * * * [progress]: simplifying candidates
3.199 * [simplify]: Simplifying:
  (fma x x (- (* y y)))
  (fma (- y) y (* y y))
  (expm1 (- (* x x) (* y y)))
  (log1p (- (* x x) (* y y)))
  (- (* y y))
  (/ (exp (* x x)) (exp (* y y)))
  (log (- (* x x) (* y y)))
  (exp (- (* x x) (* y y)))
  (* (cbrt (- (* x x) (* y y))) (cbrt (- (* x x) (* y y))))
  (cbrt (- (* x x) (* y y)))
  (* (* (- (* x x) (* y y)) (- (* x x) (* y y))) (- (* x x) (* y y)))
  (sqrt (- (* x x) (* y y)))
  (sqrt (- (* x x) (* y y)))
  (- (pow (* x x) 3) (pow (* y y) 3))
  (+ (* (* x x) (* x x)) (+ (* (* y y) (* y y)) (* (* x x) (* y y))))
  (- (* y y))
  (- (* (* x x) (* x x)) (* (* y y) (* y y)))
  (+ (* x x) (* y y))
  (+ x y)
  (- x y)
  (- (* y y))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
3.199 * * [simplify]: iteration 0: 38 enodes
3.207 * * [simplify]: iteration 1: 118 enodes
3.268 * * [simplify]: iteration 2: 646 enodes
3.687 * * [simplify]: iteration complete: 5000 enodes
3.687 * * [simplify]: Extracting #0: cost 17 inf + 0
3.688 * * [simplify]: Extracting #1: cost 513 inf + 0
3.694 * * [simplify]: Extracting #2: cost 1932 inf + 317
3.701 * * [simplify]: Extracting #3: cost 812 inf + 7627
3.716 * * [simplify]: Extracting #4: cost 122 inf + 13392
3.724 * * [simplify]: Extracting #5: cost 25 inf + 14080
3.732 * * [simplify]: Extracting #6: cost 0 inf + 14295
3.740 * [simplify]: Simplified to:
  (* (+ x y) (- x y))
  (* y (+ (- y) y))
  (expm1 (* (+ x y) (- x y)))
  (log1p (* (+ x y) (- x y)))
  (- (* y y))
  (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))
  (fma y (fma (* x x) y (pow y 3)) (pow x 4))
  (- (* y y))
  (- (pow x 4) (pow y 4))
  (fma x x (* y y))
  (+ x y)
  (- x y)
  (- (* y y))
  (* (+ x y) (- x y))
  (* (+ x y) (- x y))
  (* (+ x y) (- x y))
3.740 * * * [progress]: adding candidates to table
3.822 * * [progress]: iteration 2 / 4
3.822 * * * [progress]: picking best candidate
3.826 * * * * [pick]: Picked  #<alt (λ (x y) (* (+ x y) (- x y)))>
3.826 * * * [progress]: localizing error
3.835 * * * [progress]: generating rewritten candidates
3.835 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
3.874 * * * [progress]: generating series expansions
3.874 * * * * [progress]: [ 1 / 1 ] generating series at (2)
3.874 * [backup-simplify]: Simplify (* (+ x y) (- x y)) into (* (+ x y) (- x y))
3.874 * [approximate]: Taking taylor expansion of (* (+ x y) (- x y)) in (x y) around 0
3.874 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in y
3.874 * [taylor]: Taking taylor expansion of (+ x y) in y
3.874 * [taylor]: Taking taylor expansion of x in y
3.874 * [backup-simplify]: Simplify x into x
3.874 * [taylor]: Taking taylor expansion of y in y
3.874 * [backup-simplify]: Simplify 0 into 0
3.874 * [backup-simplify]: Simplify 1 into 1
3.874 * [taylor]: Taking taylor expansion of (- x y) in y
3.874 * [taylor]: Taking taylor expansion of x in y
3.874 * [backup-simplify]: Simplify x into x
3.874 * [taylor]: Taking taylor expansion of y in y
3.874 * [backup-simplify]: Simplify 0 into 0
3.874 * [backup-simplify]: Simplify 1 into 1
3.875 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
3.875 * [taylor]: Taking taylor expansion of (+ x y) in x
3.875 * [taylor]: Taking taylor expansion of x in x
3.875 * [backup-simplify]: Simplify 0 into 0
3.875 * [backup-simplify]: Simplify 1 into 1
3.875 * [taylor]: Taking taylor expansion of y in x
3.875 * [backup-simplify]: Simplify y into y
3.875 * [taylor]: Taking taylor expansion of (- x y) in x
3.875 * [taylor]: Taking taylor expansion of x in x
3.875 * [backup-simplify]: Simplify 0 into 0
3.875 * [backup-simplify]: Simplify 1 into 1
3.875 * [taylor]: Taking taylor expansion of y in x
3.875 * [backup-simplify]: Simplify y into y
3.875 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
3.875 * [taylor]: Taking taylor expansion of (+ x y) in x
3.875 * [taylor]: Taking taylor expansion of x in x
3.875 * [backup-simplify]: Simplify 0 into 0
3.875 * [backup-simplify]: Simplify 1 into 1
3.875 * [taylor]: Taking taylor expansion of y in x
3.875 * [backup-simplify]: Simplify y into y
3.875 * [taylor]: Taking taylor expansion of (- x y) in x
3.875 * [taylor]: Taking taylor expansion of x in x
3.875 * [backup-simplify]: Simplify 0 into 0
3.875 * [backup-simplify]: Simplify 1 into 1
3.875 * [taylor]: Taking taylor expansion of y in x
3.875 * [backup-simplify]: Simplify y into y
3.875 * [backup-simplify]: Simplify (+ 0 y) into y
3.875 * [backup-simplify]: Simplify (- y) into (- y)
3.875 * [backup-simplify]: Simplify (+ 0 (- y)) into (- y)
3.875 * [backup-simplify]: Simplify (* y (- y)) into (* -1 (pow y 2))
3.875 * [taylor]: Taking taylor expansion of (* -1 (pow y 2)) in y
3.875 * [taylor]: Taking taylor expansion of -1 in y
3.875 * [backup-simplify]: Simplify -1 into -1
3.875 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.875 * [taylor]: Taking taylor expansion of y in y
3.875 * [backup-simplify]: Simplify 0 into 0
3.875 * [backup-simplify]: Simplify 1 into 1
3.876 * [backup-simplify]: Simplify (- 0) into 0
3.876 * [backup-simplify]: Simplify (+ 1 0) into 1
3.876 * [backup-simplify]: Simplify (+ 1 0) into 1
3.876 * [backup-simplify]: Simplify (+ (* y 1) (* 1 (- y))) into 0
3.876 * [taylor]: Taking taylor expansion of 0 in y
3.876 * [backup-simplify]: Simplify 0 into 0
3.876 * [backup-simplify]: Simplify 0 into 0
3.877 * [backup-simplify]: Simplify (- 0) into 0
3.877 * [backup-simplify]: Simplify (+ 0 0) into 0
3.877 * [backup-simplify]: Simplify (+ 0 0) into 0
3.877 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 1 1) (* 0 (- y)))) into 1
3.877 * [taylor]: Taking taylor expansion of 1 in y
3.877 * [backup-simplify]: Simplify 1 into 1
3.877 * [backup-simplify]: Simplify 1 into 1
3.877 * [backup-simplify]: Simplify 0 into 0
3.878 * [backup-simplify]: Simplify (* 1 1) into 1
3.878 * [backup-simplify]: Simplify (* -1 1) into -1
3.878 * [backup-simplify]: Simplify -1 into -1
3.878 * [backup-simplify]: Simplify (- 0) into 0
3.878 * [backup-simplify]: Simplify (+ 0 0) into 0
3.879 * [backup-simplify]: Simplify (+ 0 0) into 0
3.879 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 1 0) (+ (* 0 1) (* 0 (- y))))) into 0
3.879 * [taylor]: Taking taylor expansion of 0 in y
3.879 * [backup-simplify]: Simplify 0 into 0
3.879 * [backup-simplify]: Simplify 0 into 0
3.879 * [backup-simplify]: Simplify 0 into 0
3.879 * [backup-simplify]: Simplify 0 into 0
3.880 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.880 * [backup-simplify]: Simplify (+ (* -1 0) (* 0 1)) into 0
3.880 * [backup-simplify]: Simplify 0 into 0
3.880 * [backup-simplify]: Simplify (- 0) into 0
3.881 * [backup-simplify]: Simplify (+ 0 0) into 0
3.881 * [backup-simplify]: Simplify (+ 0 0) into 0
3.882 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 1) (* 0 (- y)))))) into 0
3.882 * [taylor]: Taking taylor expansion of 0 in y
3.882 * [backup-simplify]: Simplify 0 into 0
3.882 * [backup-simplify]: Simplify 0 into 0
3.882 * [backup-simplify]: Simplify 0 into 0
3.882 * [backup-simplify]: Simplify (+ (* -1 (pow (* y 1) 2)) (* 1 (pow (* 1 x) 2))) into (- (pow x 2) (pow y 2))
3.882 * [backup-simplify]: Simplify (* (+ (/ 1 x) (/ 1 y)) (- (/ 1 x) (/ 1 y))) into (* (+ (/ 1 x) (/ 1 y)) (- (/ 1 x) (/ 1 y)))
3.882 * [approximate]: Taking taylor expansion of (* (+ (/ 1 x) (/ 1 y)) (- (/ 1 x) (/ 1 y))) in (x y) around 0
3.882 * [taylor]: Taking taylor expansion of (* (+ (/ 1 x) (/ 1 y)) (- (/ 1 x) (/ 1 y))) in y
3.882 * [taylor]: Taking taylor expansion of (+ (/ 1 x) (/ 1 y)) in y
3.882 * [taylor]: Taking taylor expansion of (/ 1 x) in y
3.882 * [taylor]: Taking taylor expansion of x in y
3.882 * [backup-simplify]: Simplify x into x
3.882 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
3.882 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.882 * [taylor]: Taking taylor expansion of y in y
3.882 * [backup-simplify]: Simplify 0 into 0
3.882 * [backup-simplify]: Simplify 1 into 1
3.882 * [backup-simplify]: Simplify (/ 1 1) into 1
3.882 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
3.882 * [taylor]: Taking taylor expansion of (/ 1 x) in y
3.882 * [taylor]: Taking taylor expansion of x in y
3.883 * [backup-simplify]: Simplify x into x
3.883 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
3.883 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.883 * [taylor]: Taking taylor expansion of y in y
3.883 * [backup-simplify]: Simplify 0 into 0
3.883 * [backup-simplify]: Simplify 1 into 1
3.883 * [backup-simplify]: Simplify (/ 1 1) into 1
3.883 * [taylor]: Taking taylor expansion of (* (+ (/ 1 x) (/ 1 y)) (- (/ 1 x) (/ 1 y))) in x
3.883 * [taylor]: Taking taylor expansion of (+ (/ 1 x) (/ 1 y)) in x
3.883 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.883 * [taylor]: Taking taylor expansion of x in x
3.883 * [backup-simplify]: Simplify 0 into 0
3.883 * [backup-simplify]: Simplify 1 into 1
3.883 * [backup-simplify]: Simplify (/ 1 1) into 1
3.883 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.883 * [taylor]: Taking taylor expansion of y in x
3.883 * [backup-simplify]: Simplify y into y
3.883 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
3.883 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
3.883 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.883 * [taylor]: Taking taylor expansion of x in x
3.883 * [backup-simplify]: Simplify 0 into 0
3.883 * [backup-simplify]: Simplify 1 into 1
3.884 * [backup-simplify]: Simplify (/ 1 1) into 1
3.884 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.884 * [taylor]: Taking taylor expansion of y in x
3.884 * [backup-simplify]: Simplify y into y
3.884 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
3.884 * [taylor]: Taking taylor expansion of (* (+ (/ 1 x) (/ 1 y)) (- (/ 1 x) (/ 1 y))) in x
3.884 * [taylor]: Taking taylor expansion of (+ (/ 1 x) (/ 1 y)) in x
3.884 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.884 * [taylor]: Taking taylor expansion of x in x
3.884 * [backup-simplify]: Simplify 0 into 0
3.884 * [backup-simplify]: Simplify 1 into 1
3.884 * [backup-simplify]: Simplify (/ 1 1) into 1
3.884 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.884 * [taylor]: Taking taylor expansion of y in x
3.884 * [backup-simplify]: Simplify y into y
3.884 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
3.884 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
3.884 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.884 * [taylor]: Taking taylor expansion of x in x
3.884 * [backup-simplify]: Simplify 0 into 0
3.884 * [backup-simplify]: Simplify 1 into 1
3.885 * [backup-simplify]: Simplify (/ 1 1) into 1
3.885 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.885 * [taylor]: Taking taylor expansion of y in x
3.885 * [backup-simplify]: Simplify y into y
3.885 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
3.885 * [backup-simplify]: Simplify (+ 1 0) into 1
3.885 * [backup-simplify]: Simplify (+ 1 0) into 1
3.886 * [backup-simplify]: Simplify (* 1 1) into 1
3.886 * [taylor]: Taking taylor expansion of 1 in y
3.886 * [backup-simplify]: Simplify 1 into 1
3.886 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.887 * [backup-simplify]: Simplify (- (/ 1 y)) into (- (/ 1 y))
3.887 * [backup-simplify]: Simplify (+ 0 (- (/ 1 y))) into (- (/ 1 y))
3.887 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.887 * [backup-simplify]: Simplify (+ 0 (/ 1 y)) into (/ 1 y)
3.887 * [backup-simplify]: Simplify (+ (* 1 (- (/ 1 y))) (* (/ 1 y) 1)) into 0
3.887 * [taylor]: Taking taylor expansion of 0 in y
3.887 * [backup-simplify]: Simplify 0 into 0
3.888 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.888 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
3.889 * [backup-simplify]: Simplify (- 0) into 0
3.889 * [backup-simplify]: Simplify (+ 0 0) into 0
3.890 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.890 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
3.890 * [backup-simplify]: Simplify (+ 0 0) into 0
3.891 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (/ 1 y) (- (/ 1 y))) (* 0 1))) into (- (/ 1 (pow y 2)))
3.891 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
3.891 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
3.891 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.891 * [taylor]: Taking taylor expansion of y in y
3.891 * [backup-simplify]: Simplify 0 into 0
3.891 * [backup-simplify]: Simplify 1 into 1
3.891 * [backup-simplify]: Simplify (* 1 1) into 1
3.892 * [backup-simplify]: Simplify (/ 1 1) into 1
3.892 * [backup-simplify]: Simplify (- 1) into -1
3.892 * [backup-simplify]: Simplify -1 into -1
3.892 * [backup-simplify]: Simplify 1 into 1
3.893 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.893 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
3.893 * [backup-simplify]: Simplify (- 0) into 0
3.893 * [backup-simplify]: Simplify (+ 0 0) into 0
3.894 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.895 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
3.895 * [backup-simplify]: Simplify (+ 0 0) into 0
3.896 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (/ 1 y) 0) (+ (* 0 (- (/ 1 y))) (* 0 1)))) into 0
3.896 * [taylor]: Taking taylor expansion of 0 in y
3.896 * [backup-simplify]: Simplify 0 into 0
3.896 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.897 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.897 * [backup-simplify]: Simplify (- 0) into 0
3.897 * [backup-simplify]: Simplify 0 into 0
3.897 * [backup-simplify]: Simplify 0 into 0
3.897 * [backup-simplify]: Simplify 0 into 0
3.898 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.898 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
3.898 * [backup-simplify]: Simplify (- 0) into 0
3.898 * [backup-simplify]: Simplify (+ 0 0) into 0
3.899 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.899 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
3.899 * [backup-simplify]: Simplify (+ 0 0) into 0
3.900 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (/ 1 y) 0) (+ (* 0 0) (+ (* 0 (- (/ 1 y))) (* 0 1))))) into 0
3.900 * [taylor]: Taking taylor expansion of 0 in y
3.900 * [backup-simplify]: Simplify 0 into 0
3.900 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
3.901 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.901 * [backup-simplify]: Simplify (- 0) into 0
3.901 * [backup-simplify]: Simplify 0 into 0
3.901 * [backup-simplify]: Simplify 0 into 0
3.901 * [backup-simplify]: Simplify 0 into 0
3.901 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 x))) 2)) (* -1 (pow (* (/ 1 (/ 1 y)) 1) 2))) into (- (pow x 2) (pow y 2))
3.902 * [backup-simplify]: Simplify (* (+ (/ 1 (- x)) (/ 1 (- y))) (- (/ 1 (- x)) (/ 1 (- y)))) into (* -1 (* (- (/ 1 y) (/ 1 x)) (+ (/ 1 x) (/ 1 y))))
3.902 * [approximate]: Taking taylor expansion of (* -1 (* (- (/ 1 y) (/ 1 x)) (+ (/ 1 x) (/ 1 y)))) in (x y) around 0
3.902 * [taylor]: Taking taylor expansion of (* -1 (* (- (/ 1 y) (/ 1 x)) (+ (/ 1 x) (/ 1 y)))) in y
3.902 * [taylor]: Taking taylor expansion of -1 in y
3.902 * [backup-simplify]: Simplify -1 into -1
3.902 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) (+ (/ 1 x) (/ 1 y))) in y
3.902 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
3.902 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.902 * [taylor]: Taking taylor expansion of y in y
3.902 * [backup-simplify]: Simplify 0 into 0
3.902 * [backup-simplify]: Simplify 1 into 1
3.902 * [backup-simplify]: Simplify (/ 1 1) into 1
3.902 * [taylor]: Taking taylor expansion of (/ 1 x) in y
3.902 * [taylor]: Taking taylor expansion of x in y
3.902 * [backup-simplify]: Simplify x into x
3.902 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
3.902 * [taylor]: Taking taylor expansion of (+ (/ 1 x) (/ 1 y)) in y
3.902 * [taylor]: Taking taylor expansion of (/ 1 x) in y
3.902 * [taylor]: Taking taylor expansion of x in y
3.902 * [backup-simplify]: Simplify x into x
3.902 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
3.902 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.903 * [taylor]: Taking taylor expansion of y in y
3.903 * [backup-simplify]: Simplify 0 into 0
3.903 * [backup-simplify]: Simplify 1 into 1
3.903 * [backup-simplify]: Simplify (/ 1 1) into 1
3.903 * [taylor]: Taking taylor expansion of (* -1 (* (- (/ 1 y) (/ 1 x)) (+ (/ 1 x) (/ 1 y)))) in x
3.903 * [taylor]: Taking taylor expansion of -1 in x
3.903 * [backup-simplify]: Simplify -1 into -1
3.903 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) (+ (/ 1 x) (/ 1 y))) in x
3.903 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
3.903 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.903 * [taylor]: Taking taylor expansion of y in x
3.903 * [backup-simplify]: Simplify y into y
3.903 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
3.903 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.903 * [taylor]: Taking taylor expansion of x in x
3.903 * [backup-simplify]: Simplify 0 into 0
3.903 * [backup-simplify]: Simplify 1 into 1
3.904 * [backup-simplify]: Simplify (/ 1 1) into 1
3.904 * [taylor]: Taking taylor expansion of (+ (/ 1 x) (/ 1 y)) in x
3.904 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.904 * [taylor]: Taking taylor expansion of x in x
3.904 * [backup-simplify]: Simplify 0 into 0
3.904 * [backup-simplify]: Simplify 1 into 1
3.904 * [backup-simplify]: Simplify (/ 1 1) into 1
3.904 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.904 * [taylor]: Taking taylor expansion of y in x
3.904 * [backup-simplify]: Simplify y into y
3.904 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
3.904 * [taylor]: Taking taylor expansion of (* -1 (* (- (/ 1 y) (/ 1 x)) (+ (/ 1 x) (/ 1 y)))) in x
3.904 * [taylor]: Taking taylor expansion of -1 in x
3.904 * [backup-simplify]: Simplify -1 into -1
3.904 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) (+ (/ 1 x) (/ 1 y))) in x
3.904 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
3.904 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.904 * [taylor]: Taking taylor expansion of y in x
3.904 * [backup-simplify]: Simplify y into y
3.904 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
3.904 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.904 * [taylor]: Taking taylor expansion of x in x
3.904 * [backup-simplify]: Simplify 0 into 0
3.904 * [backup-simplify]: Simplify 1 into 1
3.905 * [backup-simplify]: Simplify (/ 1 1) into 1
3.905 * [taylor]: Taking taylor expansion of (+ (/ 1 x) (/ 1 y)) in x
3.905 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.905 * [taylor]: Taking taylor expansion of x in x
3.905 * [backup-simplify]: Simplify 0 into 0
3.905 * [backup-simplify]: Simplify 1 into 1
3.905 * [backup-simplify]: Simplify (/ 1 1) into 1
3.905 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.905 * [taylor]: Taking taylor expansion of y in x
3.905 * [backup-simplify]: Simplify y into y
3.905 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
3.906 * [backup-simplify]: Simplify (- 1) into -1
3.906 * [backup-simplify]: Simplify (+ 0 -1) into -1
3.906 * [backup-simplify]: Simplify (+ 1 0) into 1
3.907 * [backup-simplify]: Simplify (* -1 1) into -1
3.907 * [backup-simplify]: Simplify (* -1 -1) into 1
3.907 * [taylor]: Taking taylor expansion of 1 in y
3.907 * [backup-simplify]: Simplify 1 into 1
3.908 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.908 * [backup-simplify]: Simplify (+ 0 (/ 1 y)) into (/ 1 y)
3.908 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.908 * [backup-simplify]: Simplify (- 0) into 0
3.909 * [backup-simplify]: Simplify (+ (/ 1 y) 0) into (/ 1 y)
3.909 * [backup-simplify]: Simplify (+ (* -1 (/ 1 y)) (* (/ 1 y) 1)) into 0
3.909 * [backup-simplify]: Simplify (+ (* -1 0) (* 0 -1)) into 0
3.909 * [taylor]: Taking taylor expansion of 0 in y
3.909 * [backup-simplify]: Simplify 0 into 0
3.910 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.910 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
3.910 * [backup-simplify]: Simplify (+ 0 0) into 0
3.910 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
3.910 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.911 * [backup-simplify]: Simplify (- 0) into 0
3.911 * [backup-simplify]: Simplify (+ 0 0) into 0
3.912 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* (/ 1 y) (/ 1 y)) (* 0 1))) into (/ 1 (pow y 2))
3.912 * [backup-simplify]: Simplify (+ (* -1 (/ 1 (pow y 2))) (+ (* 0 0) (* 0 -1))) into (- (/ 1 (pow y 2)))
3.912 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
3.912 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
3.912 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.912 * [taylor]: Taking taylor expansion of y in y
3.912 * [backup-simplify]: Simplify 0 into 0
3.912 * [backup-simplify]: Simplify 1 into 1
3.912 * [backup-simplify]: Simplify (* 1 1) into 1
3.913 * [backup-simplify]: Simplify (/ 1 1) into 1
3.913 * [backup-simplify]: Simplify (- 1) into -1
3.913 * [backup-simplify]: Simplify -1 into -1
3.913 * [backup-simplify]: Simplify 1 into 1
3.913 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.913 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
3.914 * [backup-simplify]: Simplify (+ 0 0) into 0
3.914 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
3.914 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.915 * [backup-simplify]: Simplify (- 0) into 0
3.915 * [backup-simplify]: Simplify (+ 0 0) into 0
3.916 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* (/ 1 y) 0) (+ (* 0 (/ 1 y)) (* 0 1)))) into 0
3.917 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 (/ 1 (pow y 2))) (+ (* 0 0) (* 0 -1)))) into 0
3.917 * [taylor]: Taking taylor expansion of 0 in y
3.917 * [backup-simplify]: Simplify 0 into 0
3.917 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.918 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.918 * [backup-simplify]: Simplify (- 0) into 0
3.918 * [backup-simplify]: Simplify 0 into 0
3.918 * [backup-simplify]: Simplify 0 into 0
3.918 * [backup-simplify]: Simplify 0 into 0
3.919 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.919 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
3.919 * [backup-simplify]: Simplify (+ 0 0) into 0
3.919 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
3.920 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.920 * [backup-simplify]: Simplify (- 0) into 0
3.921 * [backup-simplify]: Simplify (+ 0 0) into 0
3.922 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* (/ 1 y) 0) (+ (* 0 0) (+ (* 0 (/ 1 y)) (* 0 1))))) into 0
3.923 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 (/ 1 (pow y 2))) (+ (* 0 0) (* 0 -1))))) into 0
3.923 * [taylor]: Taking taylor expansion of 0 in y
3.923 * [backup-simplify]: Simplify 0 into 0
3.924 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
3.924 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.924 * [backup-simplify]: Simplify (- 0) into 0
3.924 * [backup-simplify]: Simplify 0 into 0
3.925 * [backup-simplify]: Simplify 0 into 0
3.925 * [backup-simplify]: Simplify 0 into 0
3.925 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 (- x)))) 2)) (* -1 (pow (* (/ 1 (/ 1 (- y))) 1) 2))) into (- (pow x 2) (pow y 2))
3.925 * * * [progress]: simplifying candidates
3.926 * [simplify]: Simplifying:
  (expm1 (* (+ x y) (- x y)))
  (log1p (* (+ x y) (- x y)))
  (* (+ 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) (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (cbrt y) (* (cbrt y) (cbrt y))))))
  (* (+ x y) (fma (- (cbrt y)) (* (cbrt y) (cbrt y)) (* (cbrt y) (* (cbrt y) (cbrt y)))))
  (* (+ x y) (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (sqrt y) (sqrt y)))))
  (* (+ x y) (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))))
  (* (+ x y) (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* y 1))))
  (* (+ x y) (fma (- y) 1 (* y 1)))
  (* (+ x y) (fma (sqrt x) (sqrt x) (- (* (cbrt y) (* (cbrt y) (cbrt y))))))
  (* (+ x y) (fma (- (cbrt y)) (* (cbrt y) (cbrt y)) (* (cbrt y) (* (cbrt y) (cbrt y)))))
  (* (+ x y) (fma (sqrt x) (sqrt x) (- (* (sqrt y) (sqrt y)))))
  (* (+ x y) (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))))
  (* (+ x y) (fma (sqrt x) (sqrt x) (- (* y 1))))
  (* (+ x y) (fma (- y) 1 (* y 1)))
  (* (+ x y) (fma 1 x (- (* (cbrt y) (* (cbrt y) (cbrt y))))))
  (* (+ x y) (fma (- (cbrt y)) (* (cbrt y) (cbrt y)) (* (cbrt y) (* (cbrt y) (cbrt y)))))
  (* (+ x y) (fma 1 x (- (* (sqrt y) (sqrt y)))))
  (* (+ x y) (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))))
  (* (+ x y) (fma 1 x (- (* y 1))))
  (* (+ x y) (fma (- y) 1 (* y 1)))
  (* (+ x y) x)
  (* (+ x y) (- y))
  (* (+ x y) x)
  (* (+ x y) (- y))
  (* (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (cbrt y) (* (cbrt y) (cbrt y))))) (+ x y))
  (* (fma (- (cbrt y)) (* (cbrt y) (cbrt y)) (* (cbrt y) (* (cbrt y) (cbrt y)))) (+ x y))
  (* (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (sqrt y) (sqrt y)))) (+ x y))
  (* (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))) (+ x y))
  (* (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* y 1))) (+ x y))
  (* (fma (- y) 1 (* y 1)) (+ x y))
  (* (fma (sqrt x) (sqrt x) (- (* (cbrt y) (* (cbrt y) (cbrt y))))) (+ x y))
  (* (fma (- (cbrt y)) (* (cbrt y) (cbrt y)) (* (cbrt y) (* (cbrt y) (cbrt y)))) (+ x y))
  (* (fma (sqrt x) (sqrt x) (- (* (sqrt y) (sqrt y)))) (+ x y))
  (* (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))) (+ x y))
  (* (fma (sqrt x) (sqrt x) (- (* y 1))) (+ x y))
  (* (fma (- y) 1 (* y 1)) (+ x y))
  (* (fma 1 x (- (* (cbrt y) (* (cbrt y) (cbrt y))))) (+ x y))
  (* (fma (- (cbrt y)) (* (cbrt y) (cbrt y)) (* (cbrt y) (* (cbrt y) (cbrt y)))) (+ x y))
  (* (fma 1 x (- (* (sqrt y) (sqrt y)))) (+ x y))
  (* (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))) (+ x y))
  (* (fma 1 x (- (* y 1))) (+ x y))
  (* (fma (- y) 1 (* y 1)) (+ x 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))
3.927 * * [simplify]: iteration 0: 120 enodes
3.955 * * [simplify]: iteration 1: 401 enodes
4.215 * * [simplify]: iteration 2: 2818 enodes
5.776 * * [simplify]: iteration complete: 5000 enodes
5.776 * * [simplify]: Extracting #0: cost 32 inf + 0
5.779 * * [simplify]: Extracting #1: cost 990 inf + 0
5.787 * * [simplify]: Extracting #2: cost 1496 inf + 185
5.794 * * [simplify]: Extracting #3: cost 656 inf + 4963
5.801 * * [simplify]: Extracting #4: cost 132 inf + 9258
5.812 * * [simplify]: Extracting #5: cost 53 inf + 9912
5.817 * * [simplify]: Extracting #6: cost 13 inf + 9989
5.822 * * [simplify]: Extracting #7: cost 0 inf + 10056
5.828 * [simplify]: Simplified to:
  (expm1 (* (- x y) (+ y x)))
  (log1p (* (- x y) (+ y x)))
  (* (- x y) (+ y x))
  (log (* (- x y) (+ y x)))
  (log (* (- x y) (+ y x)))
  (pow (exp (- x y)) (+ x y))
  (pow (* (- x y) (+ y x)) 3)
  (* (cbrt (* (- x y) (+ y x))) (cbrt (* (- x y) (+ y x))))
  (cbrt (* (- x y) (+ y x)))
  (pow (* (- x y) (+ y x)) 3)
  (sqrt (* (- x y) (+ y x)))
  (sqrt (* (- x y) (+ y x)))
  (* (+ (pow y 3) (pow x 3)) (- (pow x 3) (pow y 3)))
  (* (fma x x (* y (+ y x))) (fma x x (* y (- y x))))
  (* (fma x x (* y (- y))) (+ (pow y 3) (pow x 3)))
  (* (fma x x (* y (- y x))) (+ x y))
  (* (- (pow x 3) (pow y 3)) (fma x x (* y (- y))))
  (* (fma x x (* y (+ y x))) (- x y))
  (* (fma x x (* y (- y))) (fma x x (* y (- y))))
  (* (- x y) (+ y x))
  (* (sqrt (+ y x)) (sqrt (- x y)))
  (* (sqrt (+ y x)) (sqrt (- x y)))
  (* (- (pow (cbrt x) 3) y) (+ x y))
  (* (fma -1 y y) (+ x y))
  (* (- (pow (cbrt x) 3) y) (+ x y))
  (* (fma -1 y y) (+ x y))
  (* (- (pow (cbrt x) 3) y) (+ x y))
  (* (fma -1 y y) (+ x y))
  (* (- x y) (+ y x))
  (* (fma -1 y y) (+ x y))
  (* (- x y) (+ y x))
  (* (fma -1 y y) (+ x y))
  (* (- x y) (+ y x))
  (* (fma -1 y y) (+ x y))
  (* (- x y) (+ y x))
  (* (fma -1 y y) (+ x y))
  (* (- x y) (+ y x))
  (* (fma -1 y y) (+ x y))
  (* (- x y) (+ y x))
  (* (fma -1 y y) (+ x y))
  (* x (+ y x))
  (- (* (+ y x) y))
  (* x (+ y x))
  (- (* (+ y x) y))
  (* (- (pow (cbrt x) 3) y) (+ x y))
  (* (fma -1 y y) (+ x y))
  (* (- (pow (cbrt x) 3) y) (+ x y))
  (* (fma -1 y y) (+ x y))
  (* (- (pow (cbrt x) 3) y) (+ x y))
  (* (fma -1 y y) (+ x y))
  (* (- x y) (+ y x))
  (* (fma -1 y y) (+ x y))
  (* (- x y) (+ y x))
  (* (fma -1 y y) (+ x y))
  (* (- x y) (+ y x))
  (* (fma -1 y y) (+ x y))
  (* (- x y) (+ y x))
  (* (fma -1 y y) (+ x y))
  (* (- x y) (+ y x))
  (* (fma -1 y y) (+ x y))
  (* (- x y) (+ y x))
  (* (fma -1 y y) (+ x y))
  (* x (+ y x))
  (- (* (+ y x) y))
  (* x (+ y x))
  (- (* (+ y x) y))
  (* (* (cbrt (- x y)) (cbrt (- x y))) (+ y x))
  (* (sqrt (- x y)) (+ y x))
  (+ y x)
  (* (+ (sqrt y) (sqrt x)) (+ y x))
  (+ y x)
  (* (cbrt (+ y x)) (- x y))
  (* (sqrt (+ y x)) (- x y))
  (* (- x y) (+ y x))
  (* (- x y) (+ y x))
  (* (- (pow x 3) (pow y 3)) (+ y x))
  (* (+ y x) (fma x x (* y (- y))))
  (* (- x y) (+ (pow y 3) (pow x 3)))
  (* (- x y) (fma x x (* y (- y))))
  (fma x x (* y (- y)))
  (fma x x (* y (- y)))
  (fma x x (* y (- y)))
5.828 * * * [progress]: adding candidates to table
5.962 * [progress]: [Phase 3 of 3] Extracting.
5.963 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (- (* x x) (* y y)))> #<alt (λ (x y) (* (+ x y) (- x y)))>)
5.963 * * * [regime-changes]: Trying 5 branch expressions: ((* y y) (* x x) (- (* x x) (* y y)) y x)
5.963 * * * * [regimes]: Trying to branch on (* y y) from (#<alt (λ (x y) (- (* x x) (* y y)))> #<alt (λ (x y) (* (+ x y) (- x y)))>)
5.998 * * * * [regimes]: Trying to branch on (* x x) from (#<alt (λ (x y) (- (* x x) (* y y)))> #<alt (λ (x y) (* (+ x y) (- x y)))>)
6.028 * * * * [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)))>)
6.055 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) (- (* x x) (* y y)))> #<alt (λ (x y) (* (+ x y) (- x y)))>)
6.088 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) (- (* x x) (* y y)))> #<alt (λ (x y) (* (+ x y) (- x y)))>)
6.124 * * * [regime]: Found split indices: #<option (#s(si 1 255))>
6.124 * [simplify]: Simplifying:
  (* (+ x y) (- x y))
6.124 * * [simplify]: iteration 0: 5 enodes
6.124 * * [simplify]: iteration 1: 7 enodes
6.125 * * [simplify]: iteration complete: 7 enodes
6.125 * * [simplify]: Extracting #0: cost 1 inf + 0
6.125 * * [simplify]: Extracting #1: cost 3 inf + 0
6.125 * * [simplify]: Extracting #2: cost 5 inf + 0
6.125 * * [simplify]: Extracting #3: cost 3 inf + 2
6.125 * * [simplify]: Extracting #4: cost 0 inf + 15
6.125 * [simplify]: Simplified to:
  (* (+ y x) (- x y))
7.456 * [regime-testing]: Baseline error score: 0.0010001250156269534
7.468 * [regime-testing]: Oracle error score: 0.0005000625078134767
7.500 * [regime-testing]: End program error score: 0.0010001250156269534