24.252 * [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: 11 enodes
0.028 * * [simplify]: iteration 2: 18 enodes
0.030 * * [simplify]: iteration 3: 35 enodes
0.042 * * [simplify]: iteration 4: 67 enodes
0.082 * * [simplify]: iteration 5: 160 enodes
0.123 * * [simplify]: iteration 6: 366 enodes
0.286 * * [simplify]: iteration 7: 901 enodes
1.581 * * [simplify]: iteration 8: 3866 enodes
3.039 * * [simplify]: iteration complete: 5000 enodes
3.039 * * [simplify]: Extracting #0: cost 1 inf + 0
3.041 * * [simplify]: Extracting #1: cost 251 inf + 0
3.055 * * [simplify]: Extracting #2: cost 671 inf + 8504
3.090 * * [simplify]: Extracting #3: cost 153 inf + 97580
3.147 * * [simplify]: Extracting #4: cost 0 inf + 129595
3.192 * [simplify]: Simplified to:
  (- (* x x) (* y y))
3.192 * * [progress]: iteration 1 / 4
3.192 * * * [progress]: picking best candidate
3.197 * * * * [pick]: Picked  #<alt (λ (x y) (- (* x x) (* y y)))>
3.198 * * * [progress]: localizing error
3.210 * * * [progress]: generating rewritten candidates
3.210 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
3.223 * * * [progress]: generating series expansions
3.223 * * * * [progress]: [ 1 / 1 ] generating series at (2)
3.223 * [backup-simplify]: Simplify (- (* x x) (* y y)) into (- (pow x 2) (pow y 2))
3.223 * [approximate]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in (x y) around 0
3.223 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in y
3.223 * [taylor]: Taking taylor expansion of (pow x 2) in y
3.223 * [taylor]: Taking taylor expansion of x in y
3.223 * [backup-simplify]: Simplify x into x
3.223 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.223 * [taylor]: Taking taylor expansion of y in y
3.223 * [backup-simplify]: Simplify 0 into 0
3.223 * [backup-simplify]: Simplify 1 into 1
3.223 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
3.223 * [taylor]: Taking taylor expansion of (pow x 2) in x
3.223 * [taylor]: Taking taylor expansion of x in x
3.223 * [backup-simplify]: Simplify 0 into 0
3.223 * [backup-simplify]: Simplify 1 into 1
3.223 * [taylor]: Taking taylor expansion of (pow y 2) in x
3.223 * [taylor]: Taking taylor expansion of y in x
3.223 * [backup-simplify]: Simplify y into y
3.223 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
3.224 * [taylor]: Taking taylor expansion of (pow x 2) in x
3.224 * [taylor]: Taking taylor expansion of x in x
3.224 * [backup-simplify]: Simplify 0 into 0
3.224 * [backup-simplify]: Simplify 1 into 1
3.224 * [taylor]: Taking taylor expansion of (pow y 2) in x
3.224 * [taylor]: Taking taylor expansion of y in x
3.224 * [backup-simplify]: Simplify y into y
3.224 * [backup-simplify]: Simplify (* y y) into (pow y 2)
3.224 * [backup-simplify]: Simplify (- (pow y 2)) into (- (pow y 2))
3.224 * [backup-simplify]: Simplify (+ 0 (- (pow y 2))) into (- (pow y 2))
3.224 * [taylor]: Taking taylor expansion of (- (pow y 2)) in y
3.224 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.224 * [taylor]: Taking taylor expansion of y in y
3.224 * [backup-simplify]: Simplify 0 into 0
3.224 * [backup-simplify]: Simplify 1 into 1
3.224 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
3.225 * [backup-simplify]: Simplify (- 0) into 0
3.225 * [backup-simplify]: Simplify (+ 0 0) into 0
3.225 * [taylor]: Taking taylor expansion of 0 in y
3.225 * [backup-simplify]: Simplify 0 into 0
3.225 * [backup-simplify]: Simplify 0 into 0
3.226 * [backup-simplify]: Simplify (* 1 1) into 1
3.226 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
3.227 * [backup-simplify]: Simplify (- 0) into 0
3.227 * [backup-simplify]: Simplify (+ 1 0) into 1
3.227 * [taylor]: Taking taylor expansion of 1 in y
3.227 * [backup-simplify]: Simplify 1 into 1
3.227 * [backup-simplify]: Simplify 1 into 1
3.227 * [backup-simplify]: Simplify 0 into 0
3.228 * [backup-simplify]: Simplify (* 1 1) into 1
3.228 * [backup-simplify]: Simplify (- 1) into -1
3.228 * [backup-simplify]: Simplify -1 into -1
3.229 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.229 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (+ (* 0 0) (* 0 y)))) into 0
3.230 * [backup-simplify]: Simplify (- 0) into 0
3.230 * [backup-simplify]: Simplify (+ 0 0) into 0
3.230 * [taylor]: Taking taylor expansion of 0 in y
3.230 * [backup-simplify]: Simplify 0 into 0
3.230 * [backup-simplify]: Simplify 0 into 0
3.230 * [backup-simplify]: Simplify 0 into 0
3.230 * [backup-simplify]: Simplify 0 into 0
3.231 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.231 * [backup-simplify]: Simplify (- 0) into 0
3.231 * [backup-simplify]: Simplify 0 into 0
3.232 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
3.233 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 y))))) into 0
3.234 * [backup-simplify]: Simplify (- 0) into 0
3.234 * [backup-simplify]: Simplify (+ 0 0) into 0
3.234 * [taylor]: Taking taylor expansion of 0 in y
3.234 * [backup-simplify]: Simplify 0 into 0
3.234 * [backup-simplify]: Simplify 0 into 0
3.234 * [backup-simplify]: Simplify 0 into 0
3.235 * [backup-simplify]: Simplify (+ (* -1 (pow (* y 1) 2)) (* 1 (pow (* 1 x) 2))) into (- (pow x 2) (pow y 2))
3.235 * [backup-simplify]: Simplify (- (* (/ 1 x) (/ 1 x)) (* (/ 1 y) (/ 1 y))) into (- (/ 1 (pow x 2)) (/ 1 (pow y 2)))
3.235 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
3.235 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
3.235 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
3.235 * [taylor]: Taking taylor expansion of (pow x 2) in y
3.235 * [taylor]: Taking taylor expansion of x in y
3.235 * [backup-simplify]: Simplify x into x
3.235 * [backup-simplify]: Simplify (* x x) into (pow x 2)
3.235 * [backup-simplify]: Simplify (/ 1 (pow x 2)) into (/ 1 (pow x 2))
3.235 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
3.235 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.235 * [taylor]: Taking taylor expansion of y in y
3.235 * [backup-simplify]: Simplify 0 into 0
3.235 * [backup-simplify]: Simplify 1 into 1
3.239 * [backup-simplify]: Simplify (* 1 1) into 1
3.240 * [backup-simplify]: Simplify (/ 1 1) into 1
3.240 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
3.240 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
3.240 * [taylor]: Taking taylor expansion of (pow x 2) in x
3.240 * [taylor]: Taking taylor expansion of x in x
3.240 * [backup-simplify]: Simplify 0 into 0
3.240 * [backup-simplify]: Simplify 1 into 1
3.240 * [backup-simplify]: Simplify (* 1 1) into 1
3.241 * [backup-simplify]: Simplify (/ 1 1) into 1
3.241 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
3.241 * [taylor]: Taking taylor expansion of (pow y 2) in x
3.241 * [taylor]: Taking taylor expansion of y in x
3.241 * [backup-simplify]: Simplify y into y
3.241 * [backup-simplify]: Simplify (* y y) into (pow y 2)
3.241 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
3.241 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
3.241 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
3.241 * [taylor]: Taking taylor expansion of (pow x 2) in x
3.241 * [taylor]: Taking taylor expansion of x in x
3.241 * [backup-simplify]: Simplify 0 into 0
3.241 * [backup-simplify]: Simplify 1 into 1
3.241 * [backup-simplify]: Simplify (* 1 1) into 1
3.242 * [backup-simplify]: Simplify (/ 1 1) into 1
3.242 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
3.242 * [taylor]: Taking taylor expansion of (pow y 2) in x
3.242 * [taylor]: Taking taylor expansion of y in x
3.242 * [backup-simplify]: Simplify y into y
3.242 * [backup-simplify]: Simplify (* y y) into (pow y 2)
3.242 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
3.242 * [backup-simplify]: Simplify (+ 1 0) into 1
3.242 * [taylor]: Taking taylor expansion of 1 in y
3.242 * [backup-simplify]: Simplify 1 into 1
3.243 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.244 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.244 * [backup-simplify]: Simplify (+ 0 0) into 0
3.244 * [taylor]: Taking taylor expansion of 0 in y
3.244 * [backup-simplify]: Simplify 0 into 0
3.245 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
3.246 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.246 * [backup-simplify]: Simplify (- (/ 1 (pow y 2))) into (- (/ 1 (pow y 2)))
3.246 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow y 2)))) into (- (/ 1 (pow y 2)))
3.246 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
3.246 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
3.246 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.246 * [taylor]: Taking taylor expansion of y in y
3.246 * [backup-simplify]: Simplify 0 into 0
3.246 * [backup-simplify]: Simplify 1 into 1
3.247 * [backup-simplify]: Simplify (* 1 1) into 1
3.247 * [backup-simplify]: Simplify (/ 1 1) into 1
3.248 * [backup-simplify]: Simplify (- 1) into -1
3.248 * [backup-simplify]: Simplify -1 into -1
3.248 * [backup-simplify]: Simplify 1 into 1
3.249 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
3.250 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.250 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
3.250 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))))) into 0
3.250 * [backup-simplify]: Simplify (- 0) into 0
3.251 * [backup-simplify]: Simplify (+ 0 0) into 0
3.251 * [taylor]: Taking taylor expansion of 0 in y
3.251 * [backup-simplify]: Simplify 0 into 0
3.251 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.252 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.252 * [backup-simplify]: Simplify (- 0) into 0
3.252 * [backup-simplify]: Simplify 0 into 0
3.252 * [backup-simplify]: Simplify 0 into 0
3.252 * [backup-simplify]: Simplify 0 into 0
3.253 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
3.253 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.254 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
3.254 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))) (* 0 (/ 0 (pow y 2))))) into 0
3.254 * [backup-simplify]: Simplify (- 0) into 0
3.254 * [backup-simplify]: Simplify (+ 0 0) into 0
3.254 * [taylor]: Taking taylor expansion of 0 in y
3.254 * [backup-simplify]: Simplify 0 into 0
3.255 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
3.255 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.256 * [backup-simplify]: Simplify (- 0) into 0
3.256 * [backup-simplify]: Simplify 0 into 0
3.256 * [backup-simplify]: Simplify 0 into 0
3.256 * [backup-simplify]: Simplify 0 into 0
3.256 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 x))) 2)) (* -1 (pow (* (/ 1 (/ 1 y)) 1) 2))) into (- (pow x 2) (pow y 2))
3.256 * [backup-simplify]: Simplify (- (* (/ 1 (- x)) (/ 1 (- x))) (* (/ 1 (- y)) (/ 1 (- y)))) into (- (/ 1 (pow x 2)) (/ 1 (pow y 2)))
3.256 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
3.256 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
3.256 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
3.256 * [taylor]: Taking taylor expansion of (pow x 2) in y
3.256 * [taylor]: Taking taylor expansion of x in y
3.256 * [backup-simplify]: Simplify x into x
3.256 * [backup-simplify]: Simplify (* x x) into (pow x 2)
3.256 * [backup-simplify]: Simplify (/ 1 (pow x 2)) into (/ 1 (pow x 2))
3.256 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
3.256 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.256 * [taylor]: Taking taylor expansion of y in y
3.256 * [backup-simplify]: Simplify 0 into 0
3.256 * [backup-simplify]: Simplify 1 into 1
3.257 * [backup-simplify]: Simplify (* 1 1) into 1
3.257 * [backup-simplify]: Simplify (/ 1 1) into 1
3.257 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
3.257 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
3.257 * [taylor]: Taking taylor expansion of (pow x 2) in x
3.257 * [taylor]: Taking taylor expansion of x in x
3.257 * [backup-simplify]: Simplify 0 into 0
3.257 * [backup-simplify]: Simplify 1 into 1
3.257 * [backup-simplify]: Simplify (* 1 1) into 1
3.258 * [backup-simplify]: Simplify (/ 1 1) into 1
3.258 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
3.258 * [taylor]: Taking taylor expansion of (pow y 2) in x
3.258 * [taylor]: Taking taylor expansion of y in x
3.258 * [backup-simplify]: Simplify y into y
3.258 * [backup-simplify]: Simplify (* y y) into (pow y 2)
3.258 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
3.258 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
3.258 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
3.258 * [taylor]: Taking taylor expansion of (pow x 2) in x
3.258 * [taylor]: Taking taylor expansion of x in x
3.258 * [backup-simplify]: Simplify 0 into 0
3.258 * [backup-simplify]: Simplify 1 into 1
3.258 * [backup-simplify]: Simplify (* 1 1) into 1
3.258 * [backup-simplify]: Simplify (/ 1 1) into 1
3.258 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
3.258 * [taylor]: Taking taylor expansion of (pow y 2) in x
3.258 * [taylor]: Taking taylor expansion of y in x
3.258 * [backup-simplify]: Simplify y into y
3.258 * [backup-simplify]: Simplify (* y y) into (pow y 2)
3.259 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
3.259 * [backup-simplify]: Simplify (+ 1 0) into 1
3.259 * [taylor]: Taking taylor expansion of 1 in y
3.259 * [backup-simplify]: Simplify 1 into 1
3.259 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.260 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.260 * [backup-simplify]: Simplify (+ 0 0) into 0
3.260 * [taylor]: Taking taylor expansion of 0 in y
3.260 * [backup-simplify]: Simplify 0 into 0
3.261 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
3.261 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.261 * [backup-simplify]: Simplify (- (/ 1 (pow y 2))) into (- (/ 1 (pow y 2)))
3.261 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow y 2)))) into (- (/ 1 (pow y 2)))
3.261 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
3.261 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
3.261 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.261 * [taylor]: Taking taylor expansion of y in y
3.261 * [backup-simplify]: Simplify 0 into 0
3.261 * [backup-simplify]: Simplify 1 into 1
3.262 * [backup-simplify]: Simplify (* 1 1) into 1
3.262 * [backup-simplify]: Simplify (/ 1 1) into 1
3.262 * [backup-simplify]: Simplify (- 1) into -1
3.262 * [backup-simplify]: Simplify -1 into -1
3.262 * [backup-simplify]: Simplify 1 into 1
3.263 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
3.263 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.263 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
3.264 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))))) into 0
3.264 * [backup-simplify]: Simplify (- 0) into 0
3.264 * [backup-simplify]: Simplify (+ 0 0) into 0
3.264 * [taylor]: Taking taylor expansion of 0 in y
3.264 * [backup-simplify]: Simplify 0 into 0
3.264 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.265 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.265 * [backup-simplify]: Simplify (- 0) into 0
3.265 * [backup-simplify]: Simplify 0 into 0
3.265 * [backup-simplify]: Simplify 0 into 0
3.265 * [backup-simplify]: Simplify 0 into 0
3.266 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
3.266 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.267 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
3.267 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))) (* 0 (/ 0 (pow y 2))))) into 0
3.267 * [backup-simplify]: Simplify (- 0) into 0
3.267 * [backup-simplify]: Simplify (+ 0 0) into 0
3.267 * [taylor]: Taking taylor expansion of 0 in y
3.267 * [backup-simplify]: Simplify 0 into 0
3.268 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
3.268 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.269 * [backup-simplify]: Simplify (- 0) into 0
3.269 * [backup-simplify]: Simplify 0 into 0
3.269 * [backup-simplify]: Simplify 0 into 0
3.269 * [backup-simplify]: Simplify 0 into 0
3.269 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 (- x)))) 2)) (* -1 (pow (* (/ 1 (/ 1 (- y))) 1) 2))) into (- (pow x 2) (pow y 2))
3.269 * * * [progress]: simplifying candidates
3.269 * [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))
3.270 * * [simplify]: iteration 0: 38 enodes
3.278 * * [simplify]: iteration 1: 118 enodes
3.352 * * [simplify]: iteration 2: 646 enodes
3.867 * * [simplify]: iteration complete: 5000 enodes
3.867 * * [simplify]: Extracting #0: cost 17 inf + 0
3.869 * * [simplify]: Extracting #1: cost 513 inf + 0
3.877 * * [simplify]: Extracting #2: cost 1932 inf + 5720
3.911 * * [simplify]: Extracting #3: cost 812 inf + 136094
3.976 * * [simplify]: Extracting #4: cost 122 inf + 247843
4.048 * * [simplify]: Extracting #5: cost 25 inf + 271779
4.103 * * [simplify]: Extracting #6: cost 0 inf + 281168
4.159 * [simplify]: Simplified to:
  (* (+ x y) (- x y))
  (* y (+ (- y) y))
  (expm1 (* (+ x y) (- x y)))
  (log1p (* (+ x y) (- x y)))
  (- (* y y))
  (exp (* (+ x y) (- x y)))
  (log (* (+ x y) (- x y)))
  (exp (* (+ 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)))
  (- (* (* (* x x) (* x x)) (* x x)) (* (* (* y y) (* y y)) (* y y)))
  (fma (* x x) (* x x) (* (* y y) (+ (* x x) (* y y))))
  (- (* y y))
  (* (+ (* x x) (* y y)) (- (* x x) (* y y)))
  (fma x x (* y y))
  (+ x y)
  (- x y)
  (- (* y y))
  (* (+ x y) (- x y))
  (* (+ x y) (- x y))
  (* (+ x y) (- x y))
4.160 * * * [progress]: adding candidates to table
4.273 * * [progress]: iteration 2 / 4
4.273 * * * [progress]: picking best candidate
4.279 * * * * [pick]: Picked  #<alt (λ (x y) (* (+ x y) (- x y)))>
4.279 * * * [progress]: localizing error
4.294 * * * [progress]: generating rewritten candidates
4.294 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
4.325 * * * [progress]: generating series expansions
4.325 * * * * [progress]: [ 1 / 1 ] generating series at (2)
4.325 * [backup-simplify]: Simplify (* (+ x y) (- x y)) into (* (+ x y) (- x y))
4.325 * [approximate]: Taking taylor expansion of (* (+ x y) (- x y)) in (x y) around 0
4.325 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in y
4.325 * [taylor]: Taking taylor expansion of (+ x y) in y
4.325 * [taylor]: Taking taylor expansion of x in y
4.325 * [backup-simplify]: Simplify x into x
4.325 * [taylor]: Taking taylor expansion of y in y
4.325 * [backup-simplify]: Simplify 0 into 0
4.325 * [backup-simplify]: Simplify 1 into 1
4.325 * [taylor]: Taking taylor expansion of (- x y) in y
4.325 * [taylor]: Taking taylor expansion of x in y
4.325 * [backup-simplify]: Simplify x into x
4.325 * [taylor]: Taking taylor expansion of y in y
4.325 * [backup-simplify]: Simplify 0 into 0
4.325 * [backup-simplify]: Simplify 1 into 1
4.325 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
4.325 * [taylor]: Taking taylor expansion of (+ x y) in x
4.325 * [taylor]: Taking taylor expansion of x in x
4.325 * [backup-simplify]: Simplify 0 into 0
4.326 * [backup-simplify]: Simplify 1 into 1
4.326 * [taylor]: Taking taylor expansion of y in x
4.326 * [backup-simplify]: Simplify y into y
4.326 * [taylor]: Taking taylor expansion of (- x y) in x
4.326 * [taylor]: Taking taylor expansion of x in x
4.326 * [backup-simplify]: Simplify 0 into 0
4.326 * [backup-simplify]: Simplify 1 into 1
4.326 * [taylor]: Taking taylor expansion of y in x
4.326 * [backup-simplify]: Simplify y into y
4.326 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
4.326 * [taylor]: Taking taylor expansion of (+ x y) in x
4.326 * [taylor]: Taking taylor expansion of x in x
4.326 * [backup-simplify]: Simplify 0 into 0
4.326 * [backup-simplify]: Simplify 1 into 1
4.326 * [taylor]: Taking taylor expansion of y in x
4.326 * [backup-simplify]: Simplify y into y
4.326 * [taylor]: Taking taylor expansion of (- x y) in x
4.326 * [taylor]: Taking taylor expansion of x in x
4.326 * [backup-simplify]: Simplify 0 into 0
4.326 * [backup-simplify]: Simplify 1 into 1
4.326 * [taylor]: Taking taylor expansion of y in x
4.326 * [backup-simplify]: Simplify y into y
4.326 * [backup-simplify]: Simplify (+ 0 y) into y
4.326 * [backup-simplify]: Simplify (- y) into (- y)
4.326 * [backup-simplify]: Simplify (+ 0 (- y)) into (- y)
4.326 * [backup-simplify]: Simplify (* y (- y)) into (* -1 (pow y 2))
4.326 * [taylor]: Taking taylor expansion of (* -1 (pow y 2)) in y
4.326 * [taylor]: Taking taylor expansion of -1 in y
4.326 * [backup-simplify]: Simplify -1 into -1
4.326 * [taylor]: Taking taylor expansion of (pow y 2) in y
4.326 * [taylor]: Taking taylor expansion of y in y
4.326 * [backup-simplify]: Simplify 0 into 0
4.326 * [backup-simplify]: Simplify 1 into 1
4.327 * [backup-simplify]: Simplify (- 0) into 0
4.327 * [backup-simplify]: Simplify (+ 1 0) into 1
4.327 * [backup-simplify]: Simplify (+ 1 0) into 1
4.327 * [backup-simplify]: Simplify (+ (* y 1) (* 1 (- y))) into 0
4.327 * [taylor]: Taking taylor expansion of 0 in y
4.327 * [backup-simplify]: Simplify 0 into 0
4.327 * [backup-simplify]: Simplify 0 into 0
4.328 * [backup-simplify]: Simplify (- 0) into 0
4.328 * [backup-simplify]: Simplify (+ 0 0) into 0
4.328 * [backup-simplify]: Simplify (+ 0 0) into 0
4.328 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 1 1) (* 0 (- y)))) into 1
4.328 * [taylor]: Taking taylor expansion of 1 in y
4.328 * [backup-simplify]: Simplify 1 into 1
4.328 * [backup-simplify]: Simplify 1 into 1
4.328 * [backup-simplify]: Simplify 0 into 0
4.329 * [backup-simplify]: Simplify (* 1 1) into 1
4.329 * [backup-simplify]: Simplify (* -1 1) into -1
4.329 * [backup-simplify]: Simplify -1 into -1
4.329 * [backup-simplify]: Simplify (- 0) into 0
4.329 * [backup-simplify]: Simplify (+ 0 0) into 0
4.330 * [backup-simplify]: Simplify (+ 0 0) into 0
4.330 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 1 0) (+ (* 0 1) (* 0 (- y))))) into 0
4.330 * [taylor]: Taking taylor expansion of 0 in y
4.330 * [backup-simplify]: Simplify 0 into 0
4.330 * [backup-simplify]: Simplify 0 into 0
4.330 * [backup-simplify]: Simplify 0 into 0
4.330 * [backup-simplify]: Simplify 0 into 0
4.331 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
4.331 * [backup-simplify]: Simplify (+ (* -1 0) (* 0 1)) into 0
4.331 * [backup-simplify]: Simplify 0 into 0
4.332 * [backup-simplify]: Simplify (- 0) into 0
4.332 * [backup-simplify]: Simplify (+ 0 0) into 0
4.333 * [backup-simplify]: Simplify (+ 0 0) into 0
4.334 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 1) (* 0 (- y)))))) into 0
4.334 * [taylor]: Taking taylor expansion of 0 in y
4.334 * [backup-simplify]: Simplify 0 into 0
4.334 * [backup-simplify]: Simplify 0 into 0
4.334 * [backup-simplify]: Simplify 0 into 0
4.334 * [backup-simplify]: Simplify (+ (* -1 (pow (* y 1) 2)) (* 1 (pow (* 1 x) 2))) into (- (pow x 2) (pow y 2))
4.335 * [backup-simplify]: Simplify (* (+ (/ 1 x) (/ 1 y)) (- (/ 1 x) (/ 1 y))) into (* (+ (/ 1 x) (/ 1 y)) (- (/ 1 x) (/ 1 y)))
4.335 * [approximate]: Taking taylor expansion of (* (+ (/ 1 x) (/ 1 y)) (- (/ 1 x) (/ 1 y))) in (x y) around 0
4.335 * [taylor]: Taking taylor expansion of (* (+ (/ 1 x) (/ 1 y)) (- (/ 1 x) (/ 1 y))) in y
4.335 * [taylor]: Taking taylor expansion of (+ (/ 1 x) (/ 1 y)) in y
4.335 * [taylor]: Taking taylor expansion of (/ 1 x) in y
4.335 * [taylor]: Taking taylor expansion of x in y
4.335 * [backup-simplify]: Simplify x into x
4.335 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
4.335 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.335 * [taylor]: Taking taylor expansion of y in y
4.335 * [backup-simplify]: Simplify 0 into 0
4.335 * [backup-simplify]: Simplify 1 into 1
4.335 * [backup-simplify]: Simplify (/ 1 1) into 1
4.335 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
4.335 * [taylor]: Taking taylor expansion of (/ 1 x) in y
4.335 * [taylor]: Taking taylor expansion of x in y
4.335 * [backup-simplify]: Simplify x into x
4.336 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
4.336 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.336 * [taylor]: Taking taylor expansion of y in y
4.336 * [backup-simplify]: Simplify 0 into 0
4.336 * [backup-simplify]: Simplify 1 into 1
4.336 * [backup-simplify]: Simplify (/ 1 1) into 1
4.336 * [taylor]: Taking taylor expansion of (* (+ (/ 1 x) (/ 1 y)) (- (/ 1 x) (/ 1 y))) in x
4.336 * [taylor]: Taking taylor expansion of (+ (/ 1 x) (/ 1 y)) in x
4.336 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.336 * [taylor]: Taking taylor expansion of x in x
4.336 * [backup-simplify]: Simplify 0 into 0
4.336 * [backup-simplify]: Simplify 1 into 1
4.336 * [backup-simplify]: Simplify (/ 1 1) into 1
4.336 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.337 * [taylor]: Taking taylor expansion of y in x
4.337 * [backup-simplify]: Simplify y into y
4.337 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.337 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
4.337 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.337 * [taylor]: Taking taylor expansion of x in x
4.337 * [backup-simplify]: Simplify 0 into 0
4.337 * [backup-simplify]: Simplify 1 into 1
4.337 * [backup-simplify]: Simplify (/ 1 1) into 1
4.337 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.337 * [taylor]: Taking taylor expansion of y in x
4.337 * [backup-simplify]: Simplify y into y
4.337 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.337 * [taylor]: Taking taylor expansion of (* (+ (/ 1 x) (/ 1 y)) (- (/ 1 x) (/ 1 y))) in x
4.337 * [taylor]: Taking taylor expansion of (+ (/ 1 x) (/ 1 y)) in x
4.337 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.337 * [taylor]: Taking taylor expansion of x in x
4.337 * [backup-simplify]: Simplify 0 into 0
4.337 * [backup-simplify]: Simplify 1 into 1
4.338 * [backup-simplify]: Simplify (/ 1 1) into 1
4.338 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.338 * [taylor]: Taking taylor expansion of y in x
4.338 * [backup-simplify]: Simplify y into y
4.338 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.338 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
4.338 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.338 * [taylor]: Taking taylor expansion of x in x
4.338 * [backup-simplify]: Simplify 0 into 0
4.338 * [backup-simplify]: Simplify 1 into 1
4.338 * [backup-simplify]: Simplify (/ 1 1) into 1
4.338 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.338 * [taylor]: Taking taylor expansion of y in x
4.338 * [backup-simplify]: Simplify y into y
4.338 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.339 * [backup-simplify]: Simplify (+ 1 0) into 1
4.339 * [backup-simplify]: Simplify (+ 1 0) into 1
4.340 * [backup-simplify]: Simplify (* 1 1) into 1
4.340 * [taylor]: Taking taylor expansion of 1 in y
4.340 * [backup-simplify]: Simplify 1 into 1
4.340 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.341 * [backup-simplify]: Simplify (- (/ 1 y)) into (- (/ 1 y))
4.341 * [backup-simplify]: Simplify (+ 0 (- (/ 1 y))) into (- (/ 1 y))
4.341 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.342 * [backup-simplify]: Simplify (+ 0 (/ 1 y)) into (/ 1 y)
4.342 * [backup-simplify]: Simplify (+ (* 1 (- (/ 1 y))) (* (/ 1 y) 1)) into 0
4.342 * [taylor]: Taking taylor expansion of 0 in y
4.342 * [backup-simplify]: Simplify 0 into 0
4.343 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.343 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
4.343 * [backup-simplify]: Simplify (- 0) into 0
4.343 * [backup-simplify]: Simplify (+ 0 0) into 0
4.344 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.344 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
4.345 * [backup-simplify]: Simplify (+ 0 0) into 0
4.346 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (/ 1 y) (- (/ 1 y))) (* 0 1))) into (- (/ 1 (pow y 2)))
4.346 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
4.346 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
4.346 * [taylor]: Taking taylor expansion of (pow y 2) in y
4.346 * [taylor]: Taking taylor expansion of y in y
4.346 * [backup-simplify]: Simplify 0 into 0
4.346 * [backup-simplify]: Simplify 1 into 1
4.346 * [backup-simplify]: Simplify (* 1 1) into 1
4.347 * [backup-simplify]: Simplify (/ 1 1) into 1
4.347 * [backup-simplify]: Simplify (- 1) into -1
4.347 * [backup-simplify]: Simplify -1 into -1
4.347 * [backup-simplify]: Simplify 1 into 1
4.348 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.348 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.348 * [backup-simplify]: Simplify (- 0) into 0
4.348 * [backup-simplify]: Simplify (+ 0 0) into 0
4.349 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.349 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.349 * [backup-simplify]: Simplify (+ 0 0) into 0
4.350 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (/ 1 y) 0) (+ (* 0 (- (/ 1 y))) (* 0 1)))) into 0
4.350 * [taylor]: Taking taylor expansion of 0 in y
4.350 * [backup-simplify]: Simplify 0 into 0
4.350 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
4.351 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.351 * [backup-simplify]: Simplify (- 0) into 0
4.351 * [backup-simplify]: Simplify 0 into 0
4.351 * [backup-simplify]: Simplify 0 into 0
4.351 * [backup-simplify]: Simplify 0 into 0
4.351 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.352 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.352 * [backup-simplify]: Simplify (- 0) into 0
4.352 * [backup-simplify]: Simplify (+ 0 0) into 0
4.353 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.353 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.353 * [backup-simplify]: Simplify (+ 0 0) into 0
4.354 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (/ 1 y) 0) (+ (* 0 0) (+ (* 0 (- (/ 1 y))) (* 0 1))))) into 0
4.354 * [taylor]: Taking taylor expansion of 0 in y
4.354 * [backup-simplify]: Simplify 0 into 0
4.354 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
4.355 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.355 * [backup-simplify]: Simplify (- 0) into 0
4.355 * [backup-simplify]: Simplify 0 into 0
4.355 * [backup-simplify]: Simplify 0 into 0
4.355 * [backup-simplify]: Simplify 0 into 0
4.355 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 x))) 2)) (* -1 (pow (* (/ 1 (/ 1 y)) 1) 2))) into (- (pow x 2) (pow y 2))
4.356 * [backup-simplify]: Simplify (* (+ (/ 1 (- x)) (/ 1 (- y))) (- (/ 1 (- x)) (/ 1 (- y)))) into (* -1 (* (- (/ 1 y) (/ 1 x)) (+ (/ 1 x) (/ 1 y))))
4.356 * [approximate]: Taking taylor expansion of (* -1 (* (- (/ 1 y) (/ 1 x)) (+ (/ 1 x) (/ 1 y)))) in (x y) around 0
4.356 * [taylor]: Taking taylor expansion of (* -1 (* (- (/ 1 y) (/ 1 x)) (+ (/ 1 x) (/ 1 y)))) in y
4.356 * [taylor]: Taking taylor expansion of -1 in y
4.356 * [backup-simplify]: Simplify -1 into -1
4.356 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) (+ (/ 1 x) (/ 1 y))) in y
4.356 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
4.356 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.356 * [taylor]: Taking taylor expansion of y in y
4.356 * [backup-simplify]: Simplify 0 into 0
4.356 * [backup-simplify]: Simplify 1 into 1
4.356 * [backup-simplify]: Simplify (/ 1 1) into 1
4.356 * [taylor]: Taking taylor expansion of (/ 1 x) in y
4.356 * [taylor]: Taking taylor expansion of x in y
4.356 * [backup-simplify]: Simplify x into x
4.356 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
4.356 * [taylor]: Taking taylor expansion of (+ (/ 1 x) (/ 1 y)) in y
4.356 * [taylor]: Taking taylor expansion of (/ 1 x) in y
4.356 * [taylor]: Taking taylor expansion of x in y
4.356 * [backup-simplify]: Simplify x into x
4.356 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
4.356 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.356 * [taylor]: Taking taylor expansion of y in y
4.356 * [backup-simplify]: Simplify 0 into 0
4.356 * [backup-simplify]: Simplify 1 into 1
4.357 * [backup-simplify]: Simplify (/ 1 1) into 1
4.357 * [taylor]: Taking taylor expansion of (* -1 (* (- (/ 1 y) (/ 1 x)) (+ (/ 1 x) (/ 1 y)))) in x
4.357 * [taylor]: Taking taylor expansion of -1 in x
4.357 * [backup-simplify]: Simplify -1 into -1
4.357 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) (+ (/ 1 x) (/ 1 y))) in x
4.357 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
4.357 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.357 * [taylor]: Taking taylor expansion of y in x
4.357 * [backup-simplify]: Simplify y into y
4.357 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.357 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.357 * [taylor]: Taking taylor expansion of x in x
4.357 * [backup-simplify]: Simplify 0 into 0
4.357 * [backup-simplify]: Simplify 1 into 1
4.357 * [backup-simplify]: Simplify (/ 1 1) into 1
4.357 * [taylor]: Taking taylor expansion of (+ (/ 1 x) (/ 1 y)) in x
4.357 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.357 * [taylor]: Taking taylor expansion of x in x
4.357 * [backup-simplify]: Simplify 0 into 0
4.357 * [backup-simplify]: Simplify 1 into 1
4.357 * [backup-simplify]: Simplify (/ 1 1) into 1
4.357 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.357 * [taylor]: Taking taylor expansion of y in x
4.357 * [backup-simplify]: Simplify y into y
4.357 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.357 * [taylor]: Taking taylor expansion of (* -1 (* (- (/ 1 y) (/ 1 x)) (+ (/ 1 x) (/ 1 y)))) in x
4.358 * [taylor]: Taking taylor expansion of -1 in x
4.358 * [backup-simplify]: Simplify -1 into -1
4.358 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 x)) (+ (/ 1 x) (/ 1 y))) in x
4.358 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
4.358 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.358 * [taylor]: Taking taylor expansion of y in x
4.358 * [backup-simplify]: Simplify y into y
4.358 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.358 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.358 * [taylor]: Taking taylor expansion of x in x
4.358 * [backup-simplify]: Simplify 0 into 0
4.358 * [backup-simplify]: Simplify 1 into 1
4.358 * [backup-simplify]: Simplify (/ 1 1) into 1
4.358 * [taylor]: Taking taylor expansion of (+ (/ 1 x) (/ 1 y)) in x
4.358 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.358 * [taylor]: Taking taylor expansion of x in x
4.358 * [backup-simplify]: Simplify 0 into 0
4.358 * [backup-simplify]: Simplify 1 into 1
4.358 * [backup-simplify]: Simplify (/ 1 1) into 1
4.358 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.358 * [taylor]: Taking taylor expansion of y in x
4.358 * [backup-simplify]: Simplify y into y
4.358 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.359 * [backup-simplify]: Simplify (- 1) into -1
4.359 * [backup-simplify]: Simplify (+ 0 -1) into -1
4.359 * [backup-simplify]: Simplify (+ 1 0) into 1
4.359 * [backup-simplify]: Simplify (* -1 1) into -1
4.360 * [backup-simplify]: Simplify (* -1 -1) into 1
4.360 * [taylor]: Taking taylor expansion of 1 in y
4.360 * [backup-simplify]: Simplify 1 into 1
4.360 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.361 * [backup-simplify]: Simplify (+ 0 (/ 1 y)) into (/ 1 y)
4.361 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.361 * [backup-simplify]: Simplify (- 0) into 0
4.361 * [backup-simplify]: Simplify (+ (/ 1 y) 0) into (/ 1 y)
4.361 * [backup-simplify]: Simplify (+ (* -1 (/ 1 y)) (* (/ 1 y) 1)) into 0
4.362 * [backup-simplify]: Simplify (+ (* -1 0) (* 0 -1)) into 0
4.362 * [taylor]: Taking taylor expansion of 0 in y
4.362 * [backup-simplify]: Simplify 0 into 0
4.362 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.362 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
4.363 * [backup-simplify]: Simplify (+ 0 0) into 0
4.363 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
4.363 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.363 * [backup-simplify]: Simplify (- 0) into 0
4.364 * [backup-simplify]: Simplify (+ 0 0) into 0
4.364 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* (/ 1 y) (/ 1 y)) (* 0 1))) into (/ 1 (pow y 2))
4.365 * [backup-simplify]: Simplify (+ (* -1 (/ 1 (pow y 2))) (+ (* 0 0) (* 0 -1))) into (- (/ 1 (pow y 2)))
4.365 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
4.365 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
4.365 * [taylor]: Taking taylor expansion of (pow y 2) in y
4.365 * [taylor]: Taking taylor expansion of y in y
4.365 * [backup-simplify]: Simplify 0 into 0
4.365 * [backup-simplify]: Simplify 1 into 1
4.365 * [backup-simplify]: Simplify (* 1 1) into 1
4.366 * [backup-simplify]: Simplify (/ 1 1) into 1
4.366 * [backup-simplify]: Simplify (- 1) into -1
4.366 * [backup-simplify]: Simplify -1 into -1
4.366 * [backup-simplify]: Simplify 1 into 1
4.366 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.367 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.367 * [backup-simplify]: Simplify (+ 0 0) into 0
4.367 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.367 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.368 * [backup-simplify]: Simplify (- 0) into 0
4.368 * [backup-simplify]: Simplify (+ 0 0) into 0
4.368 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* (/ 1 y) 0) (+ (* 0 (/ 1 y)) (* 0 1)))) into 0
4.369 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 (/ 1 (pow y 2))) (+ (* 0 0) (* 0 -1)))) into 0
4.369 * [taylor]: Taking taylor expansion of 0 in y
4.369 * [backup-simplify]: Simplify 0 into 0
4.370 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
4.370 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.370 * [backup-simplify]: Simplify (- 0) into 0
4.370 * [backup-simplify]: Simplify 0 into 0
4.370 * [backup-simplify]: Simplify 0 into 0
4.370 * [backup-simplify]: Simplify 0 into 0
4.371 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.371 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.371 * [backup-simplify]: Simplify (+ 0 0) into 0
4.372 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.372 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.372 * [backup-simplify]: Simplify (- 0) into 0
4.373 * [backup-simplify]: Simplify (+ 0 0) into 0
4.373 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* (/ 1 y) 0) (+ (* 0 0) (+ (* 0 (/ 1 y)) (* 0 1))))) into 0
4.374 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 (/ 1 (pow y 2))) (+ (* 0 0) (* 0 -1))))) into 0
4.374 * [taylor]: Taking taylor expansion of 0 in y
4.374 * [backup-simplify]: Simplify 0 into 0
4.375 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
4.377 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.378 * [backup-simplify]: Simplify (- 0) into 0
4.378 * [backup-simplify]: Simplify 0 into 0
4.378 * [backup-simplify]: Simplify 0 into 0
4.378 * [backup-simplify]: Simplify 0 into 0
4.378 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 (- x)))) 2)) (* -1 (pow (* (/ 1 (/ 1 (- y))) 1) 2))) into (- (pow x 2) (pow y 2))
4.378 * * * [progress]: simplifying candidates
4.379 * [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))
4.380 * * [simplify]: iteration 0: 120 enodes
4.412 * * [simplify]: iteration 1: 401 enodes
4.680 * * [simplify]: iteration 2: 2818 enodes
6.327 * * [simplify]: iteration complete: 5000 enodes
6.327 * * [simplify]: Extracting #0: cost 32 inf + 0
6.329 * * [simplify]: Extracting #1: cost 990 inf + 0
6.340 * * [simplify]: Extracting #2: cost 1496 inf + 3645
6.356 * * [simplify]: Extracting #3: cost 656 inf + 91481
6.419 * * [simplify]: Extracting #4: cost 132 inf + 177426
6.471 * * [simplify]: Extracting #5: cost 53 inf + 198020
6.550 * * [simplify]: Extracting #6: cost 13 inf + 203053
6.612 * * [simplify]: Extracting #7: cost 0 inf + 206335
6.661 * [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)))
  (exp (* (- x y) (+ y x)))
  (* (* (- x y) (+ y x)) (* (* (- x y) (+ y x)) (* (- x y) (+ y x))))
  (* (cbrt (* (- x y) (+ y x))) (cbrt (* (- x y) (+ y x))))
  (cbrt (* (- x y) (+ y x)))
  (* (* (- x y) (+ y x)) (* (* (- x y) (+ y x)) (* (- x y) (+ y x))))
  (sqrt (* (- x y) (+ y x)))
  (sqrt (* (- x y) (+ y x)))
  (fma (* y (* y y)) (- (* (* x x) x) (* y (* y y))) (* (* (* x x) x) (- (* (* x x) x) (* y (* y y)))))
  (* (fma x x (* y (+ y x))) (fma x x (* y (- y x))))
  (* (+ x y) (* (- x y) (fma (* x x) x (* y (* y y)))))
  (* (fma x x (* y (- y x))) (+ x y))
  (* (- (* (* x x) x) (* y (* y y))) (* (+ x y) (- x y)))
  (* (fma x x (* y (+ y x))) (- x y))
  (* (* (+ x y) (- x y)) (* (+ x y) (- x y)))
  (* (- x y) (+ y x))
  (* (sqrt (+ y x)) (sqrt (- x y)))
  (* (sqrt (+ y x)) (sqrt (- x y)))
  (* (- (* (cbrt x) (* (cbrt x) (cbrt x))) y) (+ x y))
  (* (fma -1 y y) (+ x y))
  (* (- (* (cbrt x) (* (cbrt x) (cbrt x))) y) (+ x y))
  (* (fma -1 y y) (+ x y))
  (* (- (* (cbrt x) (* (cbrt x) (cbrt x))) 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) (* (cbrt x) (cbrt x))) y) (+ x y))
  (* (fma -1 y y) (+ x y))
  (* (- (* (cbrt x) (* (cbrt x) (cbrt x))) y) (+ x y))
  (* (fma -1 y y) (+ x y))
  (* (- (* (cbrt x) (* (cbrt x) (cbrt x))) 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))
  (* (- (* (* x x) x) (* y (* y y))) (+ y x))
  (* (* (+ y x) (+ x y)) (- x y))
  (* (- x y) (fma (* x x) x (* y (* y y))))
  (* (- x y) (* (+ x y) (- x y)))
  (* (+ x y) (- x y))
  (* (+ x y) (- x y))
  (* (+ x y) (- x y))
6.664 * * * [progress]: adding candidates to table
6.845 * [progress]: [Phase 3 of 3] Extracting.
6.845 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (* (+ x y) (- x y)))> #<alt (λ (x y) (- (* x x) (* y y)))>)
6.845 * * * [regime-changes]: Trying 5 branch expressions: ((* y y) (* x x) (- (* x x) (* y y)) y x)
6.845 * * * * [regimes]: Trying to branch on (* y y) from (#<alt (λ (x y) (* (+ x y) (- x y)))> #<alt (λ (x y) (- (* x x) (* y y)))>)
6.882 * * * * [regimes]: Trying to branch on (* x x) from (#<alt (λ (x y) (* (+ x y) (- x y)))> #<alt (λ (x y) (- (* x x) (* y y)))>)
6.920 * * * * [regimes]: Trying to branch on (- (* x x) (* y y)) from (#<alt (λ (x y) (* (+ x y) (- x y)))> #<alt (λ (x y) (- (* x x) (* y y)))>)
6.960 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) (* (+ x y) (- x y)))> #<alt (λ (x y) (- (* x x) (* y y)))>)
6.988 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) (* (+ x y) (- x y)))> #<alt (λ (x y) (- (* x x) (* y y)))>)
7.021 * * * [regime]: Found split indices: #<option (#s(si 0 255))>
7.021 * [simplify]: Simplifying:
  (* (+ x y) (- x y))
7.021 * * [simplify]: iteration 0: 5 enodes
7.022 * * [simplify]: iteration 1: 7 enodes
7.022 * * [simplify]: iteration complete: 7 enodes
7.022 * * [simplify]: Extracting #0: cost 1 inf + 0
7.022 * * [simplify]: Extracting #1: cost 3 inf + 0
7.022 * * [simplify]: Extracting #2: cost 5 inf + 0
7.022 * * [simplify]: Extracting #3: cost 3 inf + 2
7.022 * * [simplify]: Extracting #4: cost 0 inf + 208
7.022 * [simplify]: Simplified to:
  (* (+ y x) (- x y))
8.520 * [regime-testing]: Baseline error score: 0.0012501562695336917
8.535 * [regime-testing]: Oracle error score: 0.0005000625078134767
8.554 * [regime-testing]: End program error score: 0.0012501562695336917