9.314 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.019 * * * [progress]: [2/2] Setting up program.
0.020 * [progress]: [Phase 2 of 3] Improving.
0.020 * [simplify]: Simplifying:
  (- (* x x) (* y y))
0.020 * * [simplify]: Extracting # 0 : cost  0
0.020 * * [simplify]: Extracting # 1 : cost  0
0.020 * * [simplify]: Extracting # 2 : cost  0
0.020 * * [simplify]: Extracting # 3 : cost  0
0.020 * * [simplify]: Extracting # 4 : cost  0
0.020 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
0.022 * * [simplify]: Extracting # 0 : cost  0
0.022 * * [simplify]: Extracting # 1 : cost  0
0.022 * * [simplify]: Extracting # 2 : cost  0
0.022 * * [simplify]: iteration  1 :  11  enodes  (cost  7 )
0.023 * * [simplify]: Extracting # 0 : cost  0
0.023 * * [simplify]: Extracting # 1 : cost  0
0.024 * * [simplify]: Extracting # 2 : cost  0
0.024 * * [simplify]: iteration  2 :  18  enodes  (cost  7 )
0.027 * * [simplify]: Extracting # 0 : cost  0
0.027 * * [simplify]: Extracting # 1 : cost  0
0.027 * * [simplify]: Extracting # 2 : cost  0
0.027 * * [simplify]: iteration  3 :  35  enodes  (cost  7 )
0.034 * * [simplify]: Extracting # 0 : cost  0
0.034 * * [simplify]: Extracting # 1 : cost  0
0.034 * * [simplify]: Extracting # 2 : cost  0
0.034 * * [simplify]: iteration  4 :  67  enodes  (cost  7 )
0.055 * * [simplify]: Extracting # 0 : cost  0
0.055 * * [simplify]: Extracting # 1 : cost  0
0.055 * * [simplify]: Extracting # 2 : cost  0
0.055 * * [simplify]: iteration  5 :  160  enodes  (cost  7 )
0.102 * * [simplify]: Extracting # 0 : cost  0
0.102 * * [simplify]: Extracting # 1 : cost  0
0.102 * * [simplify]: Extracting # 2 : cost  0
0.103 * * [simplify]: iteration  6 :  271  enodes  (cost  7 )
0.209 * * [simplify]: Extracting # 0 : cost  0
0.209 * * [simplify]: Extracting # 1 : cost  0
0.210 * * [simplify]: Extracting # 2 : cost  0
0.210 * * [simplify]: Extracting # 3 : cost  0
0.210 * * [simplify]: iteration  7 :  514  enodes  (cost  7 )
0.977 * * [simplify]: Extracting # 0 : cost  0
0.979 * * [simplify]: Extracting # 1 : cost  0
0.981 * * [simplify]: Extracting # 2 : cost  0
0.982 * * [simplify]: Extracting # 3 : cost  0
0.984 * * [simplify]: Extracting # 4 : cost  0
0.985 * * [simplify]: iteration  8 :  1901  enodes  (cost  7 )
8.244 * * [simplify]: Extracting # 0 : cost  0
8.260 * * [simplify]: Extracting # 1 : cost  0
8.263 * * [simplify]: Extracting # 2 : cost  0
8.266 * * [simplify]: Extracting # 3 : cost  0
8.269 * * [simplify]: Extracting # 4 : cost  0
8.273 * * [simplify]: iteration done:  5001  enodes  (cost  7 )
8.273 * [simplify]: Simplified to:
  (- (* x x) (* y y))
8.273 * * [progress]: iteration 1 / 4
8.273 * * * [progress]: picking best candidate
8.274 * * * * [pick]: Picked  #<alt (λ (x y) (- (* x x) (* y y)))>
8.274 * * * [progress]: localizing error
8.279 * * * [progress]: generating rewritten candidates
8.279 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
8.287 * * * [progress]: generating series expansions
8.287 * * * * [progress]: [ 1 / 1 ] generating series at (2)
8.288 * [backup-simplify]: Simplify (- (* x x) (* y y)) into (- (pow x 2) (pow y 2))
8.288 * [approximate]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in (x y) around 0
8.288 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in y
8.288 * [taylor]: Taking taylor expansion of (pow x 2) in y
8.288 * [taylor]: Taking taylor expansion of x in y
8.288 * [backup-simplify]: Simplify x into x
8.288 * [taylor]: Taking taylor expansion of (pow y 2) in y
8.288 * [taylor]: Taking taylor expansion of y in y
8.288 * [backup-simplify]: Simplify 0 into 0
8.288 * [backup-simplify]: Simplify 1 into 1
8.288 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
8.288 * [taylor]: Taking taylor expansion of (pow x 2) in x
8.288 * [taylor]: Taking taylor expansion of x in x
8.288 * [backup-simplify]: Simplify 0 into 0
8.288 * [backup-simplify]: Simplify 1 into 1
8.288 * [taylor]: Taking taylor expansion of (pow y 2) in x
8.288 * [taylor]: Taking taylor expansion of y in x
8.288 * [backup-simplify]: Simplify y into y
8.288 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
8.288 * [taylor]: Taking taylor expansion of (pow x 2) in x
8.288 * [taylor]: Taking taylor expansion of x in x
8.288 * [backup-simplify]: Simplify 0 into 0
8.288 * [backup-simplify]: Simplify 1 into 1
8.288 * [taylor]: Taking taylor expansion of (pow y 2) in x
8.288 * [taylor]: Taking taylor expansion of y in x
8.288 * [backup-simplify]: Simplify y into y
8.288 * [backup-simplify]: Simplify (* y y) into (pow y 2)
8.288 * [backup-simplify]: Simplify (- (pow y 2)) into (- (pow y 2))
8.288 * [backup-simplify]: Simplify (+ 0 (- (pow y 2))) into (- (pow y 2))
8.288 * [taylor]: Taking taylor expansion of (- (pow y 2)) in y
8.288 * [taylor]: Taking taylor expansion of (pow y 2) in y
8.288 * [taylor]: Taking taylor expansion of y in y
8.288 * [backup-simplify]: Simplify 0 into 0
8.288 * [backup-simplify]: Simplify 1 into 1
8.289 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
8.289 * [backup-simplify]: Simplify (- 0) into 0
8.289 * [backup-simplify]: Simplify (+ 0 0) into 0
8.289 * [taylor]: Taking taylor expansion of 0 in y
8.289 * [backup-simplify]: Simplify 0 into 0
8.289 * [backup-simplify]: Simplify 0 into 0
8.290 * [backup-simplify]: Simplify (* 1 1) into 1
8.290 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
8.290 * [backup-simplify]: Simplify (- 0) into 0
8.290 * [backup-simplify]: Simplify (+ 1 0) into 1
8.290 * [taylor]: Taking taylor expansion of 1 in y
8.290 * [backup-simplify]: Simplify 1 into 1
8.290 * [backup-simplify]: Simplify 1 into 1
8.290 * [backup-simplify]: Simplify 0 into 0
8.291 * [backup-simplify]: Simplify (* 1 1) into 1
8.291 * [backup-simplify]: Simplify (- 1) into -1
8.291 * [backup-simplify]: Simplify -1 into -1
8.291 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
8.292 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (+ (* 0 0) (* 0 y)))) into 0
8.292 * [backup-simplify]: Simplify (- 0) into 0
8.292 * [backup-simplify]: Simplify (+ 0 0) into 0
8.292 * [taylor]: Taking taylor expansion of 0 in y
8.292 * [backup-simplify]: Simplify 0 into 0
8.292 * [backup-simplify]: Simplify 0 into 0
8.292 * [backup-simplify]: Simplify 0 into 0
8.292 * [backup-simplify]: Simplify 0 into 0
8.293 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
8.293 * [backup-simplify]: Simplify (- 0) into 0
8.293 * [backup-simplify]: Simplify 0 into 0
8.293 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
8.294 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 y))))) into 0
8.294 * [backup-simplify]: Simplify (- 0) into 0
8.294 * [backup-simplify]: Simplify (+ 0 0) into 0
8.294 * [taylor]: Taking taylor expansion of 0 in y
8.294 * [backup-simplify]: Simplify 0 into 0
8.294 * [backup-simplify]: Simplify 0 into 0
8.294 * [backup-simplify]: Simplify 0 into 0
8.295 * [backup-simplify]: Simplify (+ (* -1 (pow (* y 1) 2)) (* 1 (pow (* 1 x) 2))) into (- (pow x 2) (pow y 2))
8.295 * [backup-simplify]: Simplify (- (* (/ 1 x) (/ 1 x)) (* (/ 1 y) (/ 1 y))) into (- (/ 1 (pow x 2)) (/ 1 (pow y 2)))
8.295 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
8.295 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
8.295 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
8.295 * [taylor]: Taking taylor expansion of (pow x 2) in y
8.295 * [taylor]: Taking taylor expansion of x in y
8.295 * [backup-simplify]: Simplify x into x
8.295 * [backup-simplify]: Simplify (* x x) into (pow x 2)
8.295 * [backup-simplify]: Simplify (/ 1 (pow x 2)) into (/ 1 (pow x 2))
8.295 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
8.295 * [taylor]: Taking taylor expansion of (pow y 2) in y
8.295 * [taylor]: Taking taylor expansion of y in y
8.295 * [backup-simplify]: Simplify 0 into 0
8.295 * [backup-simplify]: Simplify 1 into 1
8.295 * [backup-simplify]: Simplify (* 1 1) into 1
8.296 * [backup-simplify]: Simplify (/ 1 1) into 1
8.296 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
8.296 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
8.296 * [taylor]: Taking taylor expansion of (pow x 2) in x
8.296 * [taylor]: Taking taylor expansion of x in x
8.296 * [backup-simplify]: Simplify 0 into 0
8.296 * [backup-simplify]: Simplify 1 into 1
8.296 * [backup-simplify]: Simplify (* 1 1) into 1
8.296 * [backup-simplify]: Simplify (/ 1 1) into 1
8.296 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
8.296 * [taylor]: Taking taylor expansion of (pow y 2) in x
8.296 * [taylor]: Taking taylor expansion of y in x
8.297 * [backup-simplify]: Simplify y into y
8.297 * [backup-simplify]: Simplify (* y y) into (pow y 2)
8.297 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
8.297 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
8.297 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
8.297 * [taylor]: Taking taylor expansion of (pow x 2) in x
8.297 * [taylor]: Taking taylor expansion of x in x
8.297 * [backup-simplify]: Simplify 0 into 0
8.297 * [backup-simplify]: Simplify 1 into 1
8.297 * [backup-simplify]: Simplify (* 1 1) into 1
8.297 * [backup-simplify]: Simplify (/ 1 1) into 1
8.297 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
8.297 * [taylor]: Taking taylor expansion of (pow y 2) in x
8.297 * [taylor]: Taking taylor expansion of y in x
8.297 * [backup-simplify]: Simplify y into y
8.297 * [backup-simplify]: Simplify (* y y) into (pow y 2)
8.297 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
8.298 * [backup-simplify]: Simplify (+ 1 0) into 1
8.298 * [taylor]: Taking taylor expansion of 1 in y
8.298 * [backup-simplify]: Simplify 1 into 1
8.298 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
8.299 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
8.299 * [backup-simplify]: Simplify (+ 0 0) into 0
8.299 * [taylor]: Taking taylor expansion of 0 in y
8.299 * [backup-simplify]: Simplify 0 into 0
8.299 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
8.300 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
8.300 * [backup-simplify]: Simplify (- (/ 1 (pow y 2))) into (- (/ 1 (pow y 2)))
8.301 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow y 2)))) into (- (/ 1 (pow y 2)))
8.301 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
8.301 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
8.301 * [taylor]: Taking taylor expansion of (pow y 2) in y
8.301 * [taylor]: Taking taylor expansion of y in y
8.301 * [backup-simplify]: Simplify 0 into 0
8.301 * [backup-simplify]: Simplify 1 into 1
8.301 * [backup-simplify]: Simplify (* 1 1) into 1
8.301 * [backup-simplify]: Simplify (/ 1 1) into 1
8.301 * [backup-simplify]: Simplify (- 1) into -1
8.301 * [backup-simplify]: Simplify -1 into -1
8.301 * [backup-simplify]: Simplify 1 into 1
8.302 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
8.303 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
8.303 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
8.303 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))))) into 0
8.303 * [backup-simplify]: Simplify (- 0) into 0
8.303 * [backup-simplify]: Simplify (+ 0 0) into 0
8.303 * [taylor]: Taking taylor expansion of 0 in y
8.303 * [backup-simplify]: Simplify 0 into 0
8.304 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
8.304 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
8.304 * [backup-simplify]: Simplify (- 0) into 0
8.304 * [backup-simplify]: Simplify 0 into 0
8.304 * [backup-simplify]: Simplify 0 into 0
8.304 * [backup-simplify]: Simplify 0 into 0
8.305 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
8.306 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
8.306 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
8.306 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))) (* 0 (/ 0 (pow y 2))))) into 0
8.306 * [backup-simplify]: Simplify (- 0) into 0
8.307 * [backup-simplify]: Simplify (+ 0 0) into 0
8.307 * [taylor]: Taking taylor expansion of 0 in y
8.307 * [backup-simplify]: Simplify 0 into 0
8.307 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
8.308 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
8.308 * [backup-simplify]: Simplify (- 0) into 0
8.308 * [backup-simplify]: Simplify 0 into 0
8.308 * [backup-simplify]: Simplify 0 into 0
8.308 * [backup-simplify]: Simplify 0 into 0
8.308 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 x))) 2)) (* -1 (pow (* (/ 1 (/ 1 y)) 1) 2))) into (- (pow x 2) (pow y 2))
8.308 * [backup-simplify]: Simplify (- (* (/ 1 (- x)) (/ 1 (- x))) (* (/ 1 (- y)) (/ 1 (- y)))) into (- (/ 1 (pow x 2)) (/ 1 (pow y 2)))
8.308 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
8.308 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
8.308 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
8.309 * [taylor]: Taking taylor expansion of (pow x 2) in y
8.309 * [taylor]: Taking taylor expansion of x in y
8.309 * [backup-simplify]: Simplify x into x
8.309 * [backup-simplify]: Simplify (* x x) into (pow x 2)
8.309 * [backup-simplify]: Simplify (/ 1 (pow x 2)) into (/ 1 (pow x 2))
8.309 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
8.309 * [taylor]: Taking taylor expansion of (pow y 2) in y
8.309 * [taylor]: Taking taylor expansion of y in y
8.309 * [backup-simplify]: Simplify 0 into 0
8.309 * [backup-simplify]: Simplify 1 into 1
8.309 * [backup-simplify]: Simplify (* 1 1) into 1
8.309 * [backup-simplify]: Simplify (/ 1 1) into 1
8.309 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
8.309 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
8.309 * [taylor]: Taking taylor expansion of (pow x 2) in x
8.309 * [taylor]: Taking taylor expansion of x in x
8.309 * [backup-simplify]: Simplify 0 into 0
8.309 * [backup-simplify]: Simplify 1 into 1
8.310 * [backup-simplify]: Simplify (* 1 1) into 1
8.310 * [backup-simplify]: Simplify (/ 1 1) into 1
8.310 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
8.310 * [taylor]: Taking taylor expansion of (pow y 2) in x
8.310 * [taylor]: Taking taylor expansion of y in x
8.310 * [backup-simplify]: Simplify y into y
8.310 * [backup-simplify]: Simplify (* y y) into (pow y 2)
8.310 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
8.310 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
8.310 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
8.310 * [taylor]: Taking taylor expansion of (pow x 2) in x
8.310 * [taylor]: Taking taylor expansion of x in x
8.310 * [backup-simplify]: Simplify 0 into 0
8.310 * [backup-simplify]: Simplify 1 into 1
8.310 * [backup-simplify]: Simplify (* 1 1) into 1
8.311 * [backup-simplify]: Simplify (/ 1 1) into 1
8.311 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
8.311 * [taylor]: Taking taylor expansion of (pow y 2) in x
8.311 * [taylor]: Taking taylor expansion of y in x
8.311 * [backup-simplify]: Simplify y into y
8.311 * [backup-simplify]: Simplify (* y y) into (pow y 2)
8.311 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
8.311 * [backup-simplify]: Simplify (+ 1 0) into 1
8.311 * [taylor]: Taking taylor expansion of 1 in y
8.311 * [backup-simplify]: Simplify 1 into 1
8.311 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
8.312 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
8.312 * [backup-simplify]: Simplify (+ 0 0) into 0
8.312 * [taylor]: Taking taylor expansion of 0 in y
8.312 * [backup-simplify]: Simplify 0 into 0
8.313 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
8.313 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
8.313 * [backup-simplify]: Simplify (- (/ 1 (pow y 2))) into (- (/ 1 (pow y 2)))
8.313 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow y 2)))) into (- (/ 1 (pow y 2)))
8.313 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
8.313 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
8.313 * [taylor]: Taking taylor expansion of (pow y 2) in y
8.313 * [taylor]: Taking taylor expansion of y in y
8.313 * [backup-simplify]: Simplify 0 into 0
8.313 * [backup-simplify]: Simplify 1 into 1
8.314 * [backup-simplify]: Simplify (* 1 1) into 1
8.314 * [backup-simplify]: Simplify (/ 1 1) into 1
8.316 * [backup-simplify]: Simplify (- 1) into -1
8.317 * [backup-simplify]: Simplify -1 into -1
8.317 * [backup-simplify]: Simplify 1 into 1
8.318 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
8.318 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
8.318 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
8.318 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))))) into 0
8.319 * [backup-simplify]: Simplify (- 0) into 0
8.319 * [backup-simplify]: Simplify (+ 0 0) into 0
8.319 * [taylor]: Taking taylor expansion of 0 in y
8.319 * [backup-simplify]: Simplify 0 into 0
8.319 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
8.320 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
8.320 * [backup-simplify]: Simplify (- 0) into 0
8.320 * [backup-simplify]: Simplify 0 into 0
8.320 * [backup-simplify]: Simplify 0 into 0
8.320 * [backup-simplify]: Simplify 0 into 0
8.320 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
8.321 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
8.321 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
8.322 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))) (* 0 (/ 0 (pow y 2))))) into 0
8.322 * [backup-simplify]: Simplify (- 0) into 0
8.322 * [backup-simplify]: Simplify (+ 0 0) into 0
8.322 * [taylor]: Taking taylor expansion of 0 in y
8.322 * [backup-simplify]: Simplify 0 into 0
8.322 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
8.323 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
8.323 * [backup-simplify]: Simplify (- 0) into 0
8.323 * [backup-simplify]: Simplify 0 into 0
8.323 * [backup-simplify]: Simplify 0 into 0
8.323 * [backup-simplify]: Simplify 0 into 0
8.324 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 (- x)))) 2)) (* -1 (pow (* (/ 1 (/ 1 (- y))) 1) 2))) into (- (pow x 2) (pow y 2))
8.324 * * * [progress]: simplifying candidates
8.324 * [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))
8.324 * * [simplify]: Extracting # 0 : cost  0
8.324 * * [simplify]: Extracting # 1 : cost  0
8.324 * * [simplify]: Extracting # 2 : cost  0
8.325 * * [simplify]: Extracting # 3 : cost  0
8.325 * * [simplify]: Extracting # 4 : cost  0
8.325 * * [simplify]: Extracting # 5 : cost  0
8.325 * * [simplify]: iteration  0 :  38  enodes  (cost  214 )
8.333 * * [simplify]: Extracting # 0 : cost  0
8.333 * * [simplify]: Extracting # 1 : cost  0
8.333 * * [simplify]: Extracting # 2 : cost  0
8.333 * * [simplify]: Extracting # 3 : cost  0
8.333 * * [simplify]: Extracting # 4 : cost  0
8.333 * * [simplify]: iteration  1 :  100  enodes  (cost  205 )
8.368 * * [simplify]: Extracting # 0 : cost  0
8.368 * * [simplify]: Extracting # 1 : cost  0
8.369 * * [simplify]: Extracting # 2 : cost  0
8.369 * * [simplify]: Extracting # 3 : cost  0
8.369 * * [simplify]: Extracting # 4 : cost  0
8.369 * * [simplify]: iteration  2 :  291  enodes  (cost  175 )
8.468 * * [simplify]: Extracting # 0 : cost  0
8.469 * * [simplify]: Extracting # 1 : cost  0
8.470 * * [simplify]: Extracting # 2 : cost  0
8.471 * * [simplify]: Extracting # 3 : cost  0
8.471 * * [simplify]: Extracting # 4 : cost  0
8.472 * * [simplify]: iteration  3 :  922  enodes  (cost  175 )
9.265 * * [simplify]: Extracting # 0 : cost  0
9.270 * * [simplify]: Extracting # 1 : cost  0
9.273 * * [simplify]: Extracting # 2 : cost  0
9.277 * * [simplify]: Extracting # 3 : cost  0
9.280 * * [simplify]: Extracting # 4 : cost  0
9.284 * * [simplify]: iteration  4 :  4017  enodes  (cost  170 )
10.224 * * [simplify]: Extracting # 0 : cost  0
10.229 * * [simplify]: Extracting # 1 : cost  0
10.233 * * [simplify]: iteration done:  5000  enodes  (cost  170 )
10.234 * [simplify]: Simplified to:
  (fma x x (- (* y y)))
  0
  (expm1 (- (* x x) (* y y)))
  (log1p (- (* x x) (* y y)))
  (- (* y y))
  (exp (- (* x x) (* 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)))
  (pow (fma x x (- (* y y))) 3)
  (sqrt (- (* x x) (* y y)))
  (sqrt (- (* x x) (* y y)))
  (- (pow x 6) (pow y 6))
  (fma (* y y) (fma x x (pow y 2)) (pow x 4))
  (- (* y y))
  (- (pow x 4) (pow y 4))
  (fma x x (pow y 2))
  (+ x y)
  (- x y)
  (- (* y y))
  (fma x x (- (* y y)))
  (fma x x (- (* y y)))
  (fma x x (- (* y y)))
10.234 * * * [progress]: adding candidates to table
10.273 * * [progress]: iteration 2 / 4
10.273 * * * [progress]: picking best candidate
10.274 * * * * [pick]: Picked  #<alt (λ (x y) (+ (fma x x (- (* y y))) 0))>
10.274 * * * [progress]: localizing error
10.280 * * * [progress]: generating rewritten candidates
10.280 * * * [progress]: generating series expansions
10.280 * * * [progress]: simplifying candidates
10.280 * [simplify]: Simplifying:
  
10.280 * * [simplify]: Extracting # 0 : cost  0
10.280 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
10.280 * * [simplify]: Extracting # 0 : cost  0
10.280 * * [simplify]: iteration done:  0  enodes  (cost  0 )
10.280 * [simplify]: Simplified to:
  
10.280 * * * [progress]: adding candidates to table
10.280 * [progress]: [Phase 3 of 3] Extracting.
10.282 * [simplify]: Simplifying:
  (+ (fma x x (- (* y y))) 0)
10.282 * * [simplify]: Extracting # 0 : cost  0
10.282 * * [simplify]: Extracting # 1 : cost  0
10.282 * * [simplify]: Extracting # 2 : cost  0
10.282 * * [simplify]: Extracting # 3 : cost  0
10.282 * * [simplify]: Extracting # 4 : cost  0
10.282 * * [simplify]: Extracting # 5 : cost  0
10.282 * * [simplify]: Extracting # 6 : cost  0
10.282 * * [simplify]: iteration  0 :  7  enodes  (cost  9 )
10.283 * * [simplify]: Extracting # 0 : cost  0
10.283 * * [simplify]: Extracting # 1 : cost  0
10.283 * * [simplify]: Extracting # 2 : cost  0
10.283 * * [simplify]: iteration  1 :  11  enodes  (cost  7 )
10.283 * * [simplify]: Extracting # 0 : cost  0
10.283 * * [simplify]: iteration done:  11  enodes  (cost  7 )
10.283 * [simplify]: Simplified to:
  (fma x x (- (* y y)))
10.897 * [regime-testing]: End program error score: 0.0039157304781706915