58.527 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.036 * * * [progress]: [2/2] Setting up program.
0.042 * [progress]: [Phase 2 of 3] Improving.
0.043 * [simplify]: Simplifying:
  (- (* x x) (* y y))
0.043 * * [simplify]: iteration 0: 5 enodes
0.044 * * [simplify]: iteration 1: 10 enodes
0.048 * * [simplify]: iteration 2: 17 enodes
0.053 * * [simplify]: iteration 3: 32 enodes
0.064 * * [simplify]: iteration 4: 57 enodes
0.090 * * [simplify]: iteration 5: 128 enodes
0.130 * * [simplify]: iteration 6: 201 enodes
0.236 * * [simplify]: iteration 7: 367 enodes
0.629 * * [simplify]: iteration 8: 1179 enodes
2.827 * * [simplify]: iteration 9: 4084 enodes
4.722 * * [simplify]: iteration complete: 5002 enodes
4.722 * * [simplify]: Extracting #0: cost 1 inf + 0
4.723 * * [simplify]: Extracting #1: cost 166 inf + 0
4.728 * * [simplify]: Extracting #2: cost 895 inf + 2
4.740 * * [simplify]: Extracting #3: cost 702 inf + 29891
4.785 * * [simplify]: Extracting #4: cost 180 inf + 115226
4.843 * * [simplify]: Extracting #5: cost 4 inf + 156981
4.901 * * [simplify]: Extracting #6: cost 0 inf + 157867
4.960 * [simplify]: Simplified to:
  (* (- x y) (+ y x))
4.961 * * [progress]: iteration 1 / 4
4.961 * * * [progress]: picking best candidate
4.965 * * * * [pick]: Picked  #<alt (λ (x y) (- (* x x) (* y y)))>
4.966 * * * [progress]: localizing error
4.975 * * * [progress]: generating rewritten candidates
4.975 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
4.989 * * * [progress]: generating series expansions
4.989 * * * * [progress]: [ 1 / 1 ] generating series at (2)
4.989 * [backup-simplify]: Simplify (- (* x x) (* y y)) into (- (pow x 2) (pow y 2))
4.989 * [approximate]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in (x y) around 0
4.989 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in y
4.989 * [taylor]: Taking taylor expansion of (pow x 2) in y
4.989 * [taylor]: Taking taylor expansion of x in y
4.990 * [backup-simplify]: Simplify x into x
4.990 * [taylor]: Taking taylor expansion of (pow y 2) in y
4.990 * [taylor]: Taking taylor expansion of y in y
4.990 * [backup-simplify]: Simplify 0 into 0
4.990 * [backup-simplify]: Simplify 1 into 1
4.990 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
4.990 * [taylor]: Taking taylor expansion of (pow x 2) in x
4.990 * [taylor]: Taking taylor expansion of x in x
4.990 * [backup-simplify]: Simplify 0 into 0
4.990 * [backup-simplify]: Simplify 1 into 1
4.990 * [taylor]: Taking taylor expansion of (pow y 2) in x
4.990 * [taylor]: Taking taylor expansion of y in x
4.990 * [backup-simplify]: Simplify y into y
4.990 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
4.990 * [taylor]: Taking taylor expansion of (pow x 2) in x
4.990 * [taylor]: Taking taylor expansion of x in x
4.990 * [backup-simplify]: Simplify 0 into 0
4.990 * [backup-simplify]: Simplify 1 into 1
4.990 * [taylor]: Taking taylor expansion of (pow y 2) in x
4.990 * [taylor]: Taking taylor expansion of y in x
4.990 * [backup-simplify]: Simplify y into y
4.990 * [backup-simplify]: Simplify (* y y) into (pow y 2)
4.990 * [backup-simplify]: Simplify (- (pow y 2)) into (- (pow y 2))
4.990 * [backup-simplify]: Simplify (+ 0 (- (pow y 2))) into (- (pow y 2))
4.990 * [taylor]: Taking taylor expansion of (- (pow y 2)) in y
4.991 * [taylor]: Taking taylor expansion of (pow y 2) in y
4.991 * [taylor]: Taking taylor expansion of y in y
4.991 * [backup-simplify]: Simplify 0 into 0
4.991 * [backup-simplify]: Simplify 1 into 1
4.991 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
4.991 * [backup-simplify]: Simplify (- 0) into 0
4.992 * [backup-simplify]: Simplify (+ 0 0) into 0
4.992 * [taylor]: Taking taylor expansion of 0 in y
4.992 * [backup-simplify]: Simplify 0 into 0
4.992 * [backup-simplify]: Simplify 0 into 0
4.992 * [backup-simplify]: Simplify (* 1 1) into 1
4.993 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
4.993 * [backup-simplify]: Simplify (- 0) into 0
4.994 * [backup-simplify]: Simplify (+ 1 0) into 1
4.994 * [taylor]: Taking taylor expansion of 1 in y
4.994 * [backup-simplify]: Simplify 1 into 1
4.994 * [backup-simplify]: Simplify 1 into 1
4.994 * [backup-simplify]: Simplify 0 into 0
4.994 * [backup-simplify]: Simplify (* 1 1) into 1
4.995 * [backup-simplify]: Simplify (- 1) into -1
4.995 * [backup-simplify]: Simplify -1 into -1
4.995 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
4.996 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (+ (* 0 0) (* 0 y)))) into 0
4.996 * [backup-simplify]: Simplify (- 0) into 0
4.997 * [backup-simplify]: Simplify (+ 0 0) into 0
4.997 * [taylor]: Taking taylor expansion of 0 in y
4.997 * [backup-simplify]: Simplify 0 into 0
4.997 * [backup-simplify]: Simplify 0 into 0
4.997 * [backup-simplify]: Simplify 0 into 0
4.997 * [backup-simplify]: Simplify 0 into 0
4.997 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
4.998 * [backup-simplify]: Simplify (- 0) into 0
4.998 * [backup-simplify]: Simplify 0 into 0
4.999 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
5.000 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 y))))) into 0
5.001 * [backup-simplify]: Simplify (- 0) into 0
5.001 * [backup-simplify]: Simplify (+ 0 0) into 0
5.001 * [taylor]: Taking taylor expansion of 0 in y
5.001 * [backup-simplify]: Simplify 0 into 0
5.001 * [backup-simplify]: Simplify 0 into 0
5.001 * [backup-simplify]: Simplify 0 into 0
5.002 * [backup-simplify]: Simplify (+ (* -1 (pow (* y 1) 2)) (* 1 (pow (* 1 x) 2))) into (- (pow x 2) (pow y 2))
5.002 * [backup-simplify]: Simplify (- (* (/ 1 x) (/ 1 x)) (* (/ 1 y) (/ 1 y))) into (- (/ 1 (pow x 2)) (/ 1 (pow y 2)))
5.002 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
5.002 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
5.002 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
5.002 * [taylor]: Taking taylor expansion of (pow x 2) in y
5.002 * [taylor]: Taking taylor expansion of x in y
5.002 * [backup-simplify]: Simplify x into x
5.002 * [backup-simplify]: Simplify (* x x) into (pow x 2)
5.002 * [backup-simplify]: Simplify (/ 1 (pow x 2)) into (/ 1 (pow x 2))
5.002 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
5.002 * [taylor]: Taking taylor expansion of (pow y 2) in y
5.002 * [taylor]: Taking taylor expansion of y in y
5.002 * [backup-simplify]: Simplify 0 into 0
5.002 * [backup-simplify]: Simplify 1 into 1
5.003 * [backup-simplify]: Simplify (* 1 1) into 1
5.003 * [backup-simplify]: Simplify (/ 1 1) into 1
5.003 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
5.003 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
5.003 * [taylor]: Taking taylor expansion of (pow x 2) in x
5.003 * [taylor]: Taking taylor expansion of x in x
5.003 * [backup-simplify]: Simplify 0 into 0
5.003 * [backup-simplify]: Simplify 1 into 1
5.004 * [backup-simplify]: Simplify (* 1 1) into 1
5.004 * [backup-simplify]: Simplify (/ 1 1) into 1
5.004 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
5.004 * [taylor]: Taking taylor expansion of (pow y 2) in x
5.004 * [taylor]: Taking taylor expansion of y in x
5.004 * [backup-simplify]: Simplify y into y
5.004 * [backup-simplify]: Simplify (* y y) into (pow y 2)
5.005 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
5.005 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
5.005 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
5.005 * [taylor]: Taking taylor expansion of (pow x 2) in x
5.005 * [taylor]: Taking taylor expansion of x in x
5.005 * [backup-simplify]: Simplify 0 into 0
5.005 * [backup-simplify]: Simplify 1 into 1
5.005 * [backup-simplify]: Simplify (* 1 1) into 1
5.006 * [backup-simplify]: Simplify (/ 1 1) into 1
5.006 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
5.006 * [taylor]: Taking taylor expansion of (pow y 2) in x
5.006 * [taylor]: Taking taylor expansion of y in x
5.006 * [backup-simplify]: Simplify y into y
5.006 * [backup-simplify]: Simplify (* y y) into (pow y 2)
5.006 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
5.007 * [backup-simplify]: Simplify (+ 1 0) into 1
5.007 * [taylor]: Taking taylor expansion of 1 in y
5.007 * [backup-simplify]: Simplify 1 into 1
5.007 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
5.008 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
5.008 * [backup-simplify]: Simplify (+ 0 0) into 0
5.008 * [taylor]: Taking taylor expansion of 0 in y
5.008 * [backup-simplify]: Simplify 0 into 0
5.009 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
5.010 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
5.011 * [backup-simplify]: Simplify (- (/ 1 (pow y 2))) into (- (/ 1 (pow y 2)))
5.011 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow y 2)))) into (- (/ 1 (pow y 2)))
5.011 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
5.011 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
5.011 * [taylor]: Taking taylor expansion of (pow y 2) in y
5.011 * [taylor]: Taking taylor expansion of y in y
5.011 * [backup-simplify]: Simplify 0 into 0
5.011 * [backup-simplify]: Simplify 1 into 1
5.012 * [backup-simplify]: Simplify (* 1 1) into 1
5.012 * [backup-simplify]: Simplify (/ 1 1) into 1
5.013 * [backup-simplify]: Simplify (- 1) into -1
5.013 * [backup-simplify]: Simplify -1 into -1
5.013 * [backup-simplify]: Simplify 1 into 1
5.014 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
5.015 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
5.015 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
5.015 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))))) into 0
5.016 * [backup-simplify]: Simplify (- 0) into 0
5.016 * [backup-simplify]: Simplify (+ 0 0) into 0
5.016 * [taylor]: Taking taylor expansion of 0 in y
5.016 * [backup-simplify]: Simplify 0 into 0
5.017 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
5.017 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
5.018 * [backup-simplify]: Simplify (- 0) into 0
5.018 * [backup-simplify]: Simplify 0 into 0
5.018 * [backup-simplify]: Simplify 0 into 0
5.018 * [backup-simplify]: Simplify 0 into 0
5.019 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
5.020 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
5.021 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
5.021 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))) (* 0 (/ 0 (pow y 2))))) into 0
5.021 * [backup-simplify]: Simplify (- 0) into 0
5.022 * [backup-simplify]: Simplify (+ 0 0) into 0
5.022 * [taylor]: Taking taylor expansion of 0 in y
5.022 * [backup-simplify]: Simplify 0 into 0
5.023 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
5.024 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
5.024 * [backup-simplify]: Simplify (- 0) into 0
5.024 * [backup-simplify]: Simplify 0 into 0
5.024 * [backup-simplify]: Simplify 0 into 0
5.024 * [backup-simplify]: Simplify 0 into 0
5.025 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 x))) 2)) (* -1 (pow (* (/ 1 (/ 1 y)) 1) 2))) into (- (pow x 2) (pow y 2))
5.025 * [backup-simplify]: Simplify (- (* (/ 1 (- x)) (/ 1 (- x))) (* (/ 1 (- y)) (/ 1 (- y)))) into (- (/ 1 (pow x 2)) (/ 1 (pow y 2)))
5.025 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
5.025 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
5.025 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
5.025 * [taylor]: Taking taylor expansion of (pow x 2) in y
5.025 * [taylor]: Taking taylor expansion of x in y
5.025 * [backup-simplify]: Simplify x into x
5.025 * [backup-simplify]: Simplify (* x x) into (pow x 2)
5.026 * [backup-simplify]: Simplify (/ 1 (pow x 2)) into (/ 1 (pow x 2))
5.026 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
5.026 * [taylor]: Taking taylor expansion of (pow y 2) in y
5.026 * [taylor]: Taking taylor expansion of y in y
5.026 * [backup-simplify]: Simplify 0 into 0
5.026 * [backup-simplify]: Simplify 1 into 1
5.026 * [backup-simplify]: Simplify (* 1 1) into 1
5.027 * [backup-simplify]: Simplify (/ 1 1) into 1
5.027 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
5.027 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
5.027 * [taylor]: Taking taylor expansion of (pow x 2) in x
5.027 * [taylor]: Taking taylor expansion of x in x
5.027 * [backup-simplify]: Simplify 0 into 0
5.027 * [backup-simplify]: Simplify 1 into 1
5.027 * [backup-simplify]: Simplify (* 1 1) into 1
5.028 * [backup-simplify]: Simplify (/ 1 1) into 1
5.028 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
5.028 * [taylor]: Taking taylor expansion of (pow y 2) in x
5.028 * [taylor]: Taking taylor expansion of y in x
5.028 * [backup-simplify]: Simplify y into y
5.028 * [backup-simplify]: Simplify (* y y) into (pow y 2)
5.028 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
5.028 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
5.028 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
5.028 * [taylor]: Taking taylor expansion of (pow x 2) in x
5.028 * [taylor]: Taking taylor expansion of x in x
5.028 * [backup-simplify]: Simplify 0 into 0
5.028 * [backup-simplify]: Simplify 1 into 1
5.029 * [backup-simplify]: Simplify (* 1 1) into 1
5.029 * [backup-simplify]: Simplify (/ 1 1) into 1
5.029 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
5.029 * [taylor]: Taking taylor expansion of (pow y 2) in x
5.029 * [taylor]: Taking taylor expansion of y in x
5.029 * [backup-simplify]: Simplify y into y
5.029 * [backup-simplify]: Simplify (* y y) into (pow y 2)
5.029 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
5.030 * [backup-simplify]: Simplify (+ 1 0) into 1
5.030 * [taylor]: Taking taylor expansion of 1 in y
5.030 * [backup-simplify]: Simplify 1 into 1
5.031 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
5.032 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
5.032 * [backup-simplify]: Simplify (+ 0 0) into 0
5.032 * [taylor]: Taking taylor expansion of 0 in y
5.032 * [backup-simplify]: Simplify 0 into 0
5.033 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
5.034 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
5.034 * [backup-simplify]: Simplify (- (/ 1 (pow y 2))) into (- (/ 1 (pow y 2)))
5.034 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow y 2)))) into (- (/ 1 (pow y 2)))
5.034 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
5.034 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
5.034 * [taylor]: Taking taylor expansion of (pow y 2) in y
5.034 * [taylor]: Taking taylor expansion of y in y
5.034 * [backup-simplify]: Simplify 0 into 0
5.034 * [backup-simplify]: Simplify 1 into 1
5.035 * [backup-simplify]: Simplify (* 1 1) into 1
5.035 * [backup-simplify]: Simplify (/ 1 1) into 1
5.036 * [backup-simplify]: Simplify (- 1) into -1
5.036 * [backup-simplify]: Simplify -1 into -1
5.036 * [backup-simplify]: Simplify 1 into 1
5.037 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
5.038 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
5.038 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
5.038 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))))) into 0
5.039 * [backup-simplify]: Simplify (- 0) into 0
5.039 * [backup-simplify]: Simplify (+ 0 0) into 0
5.039 * [taylor]: Taking taylor expansion of 0 in y
5.039 * [backup-simplify]: Simplify 0 into 0
5.040 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
5.040 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
5.041 * [backup-simplify]: Simplify (- 0) into 0
5.041 * [backup-simplify]: Simplify 0 into 0
5.041 * [backup-simplify]: Simplify 0 into 0
5.041 * [backup-simplify]: Simplify 0 into 0
5.042 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
5.043 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
5.044 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
5.044 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))) (* 0 (/ 0 (pow y 2))))) into 0
5.045 * [backup-simplify]: Simplify (- 0) into 0
5.045 * [backup-simplify]: Simplify (+ 0 0) into 0
5.045 * [taylor]: Taking taylor expansion of 0 in y
5.045 * [backup-simplify]: Simplify 0 into 0
5.046 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
5.047 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
5.047 * [backup-simplify]: Simplify (- 0) into 0
5.048 * [backup-simplify]: Simplify 0 into 0
5.048 * [backup-simplify]: Simplify 0 into 0
5.048 * [backup-simplify]: Simplify 0 into 0
5.048 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 (- x)))) 2)) (* -1 (pow (* (/ 1 (/ 1 (- y))) 1) 2))) into (- (pow x 2) (pow y 2))
5.048 * * * [progress]: simplifying candidates
5.049 * [simplify]: Simplifying:
  (/ (exp (* x x)) (exp (* y y)))
  (log (- (* x x) (* y y)))
  (exp (- (* x x) (* y y)))
  (* (cbrt (- (* x x) (* y y))) (cbrt (- (* x x) (* y y))))
  (cbrt (- (* x x) (* y y)))
  (* (* (- (* x x) (* y y)) (- (* x x) (* y y))) (- (* x x) (* y y)))
  (sqrt (- (* x x) (* y y)))
  (sqrt (- (* x x) (* y y)))
  (- (pow (* x x) 3) (pow (* y y) 3))
  (+ (* (* x x) (* x x)) (+ (* (* y y) (* y y)) (* (* x x) (* y y))))
  (- (* y y))
  (- (* (* x x) (* x x)) (* (* y y) (* y y)))
  (+ (* x x) (* y y))
  (+ x y)
  (- x y)
  (- (* y y))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
5.049 * * [simplify]: iteration 0: 33 enodes
5.063 * * [simplify]: iteration 1: 96 enodes
5.098 * * [simplify]: iteration 2: 288 enodes
5.257 * * [simplify]: iteration 3: 1264 enodes
5.733 * * [simplify]: iteration complete: 5000 enodes
5.733 * * [simplify]: Extracting #0: cost 14 inf + 0
5.734 * * [simplify]: Extracting #1: cost 315 inf + 0
5.740 * * [simplify]: Extracting #2: cost 1410 inf + 935
5.754 * * [simplify]: Extracting #3: cost 1591 inf + 55438
5.823 * * [simplify]: Extracting #4: cost 448 inf + 300547
5.910 * * [simplify]: Extracting #5: cost 90 inf + 396428
6.026 * * [simplify]: Extracting #6: cost 14 inf + 414697
6.134 * * [simplify]: Extracting #7: cost 0 inf + 419118
6.213 * [simplify]: Simplified to:
  (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)) (* (* y y) y)) (+ (* x (* x x)) (* (* y y) y)))
  (+ (* (* x x) (* x x)) (* (* y y) (+ (* y y) (* x x))))
  (- (* y y))
  (- (* (* x x) (* x x)) (* (* y y) (* y y)))
  (+ (* y y) (* x x))
  (+ y x)
  (- x y)
  (- (* y y))
  (* (+ x y) (- x y))
  (* (+ x y) (- x y))
  (* (+ x y) (- x y))
6.214 * * * [progress]: adding candidates to table
6.282 * * [progress]: iteration 2 / 4
6.282 * * * [progress]: picking best candidate
6.286 * * * * [pick]: Picked  #<alt (λ (x y) (* (+ x y) (- x y)))>
6.286 * * * [progress]: localizing error
6.293 * * * [progress]: generating rewritten candidates
6.293 * * * [progress]: generating series expansions
6.293 * * * [progress]: simplifying candidates
6.293 * [simplify]: Simplifying:
  
6.293 * * [simplify]: iteration 0: 0 enodes
6.293 * * [simplify]: iteration complete: 0 enodes
6.293 * * [simplify]: Extracting #0: cost 0 inf + 0
6.293 * [simplify]: Simplified to:
  
6.293 * * * [progress]: adding candidates to table
6.294 * [progress]: [Phase 3 of 3] Extracting.
6.297 * [simplify]: Simplifying:
  (* (+ x y) (- x y))
6.297 * * [simplify]: iteration 0: 5 enodes
6.298 * * [simplify]: iteration 1: 7 enodes
6.298 * * [simplify]: iteration complete: 7 enodes
6.298 * * [simplify]: Extracting #0: cost 1 inf + 0
6.298 * * [simplify]: Extracting #1: cost 3 inf + 0
6.298 * * [simplify]: Extracting #2: cost 5 inf + 0
6.298 * * [simplify]: Extracting #3: cost 3 inf + 2
6.298 * * [simplify]: Extracting #4: cost 0 inf + 208
6.298 * [simplify]: Simplified to:
  (* (+ y x) (- x y))
7.443 * [regime-testing]: Baseline error score: 0.0012501562695336917
7.451 * [regime-testing]: Oracle error score: 0.0012501562695336917
7.451 * [regime-testing]: End program error score: 0.0012501562695336917