28.508 * [progress]: [Phase 1 of 3] Setting up.
0.002 * * * [progress]: [1/2] Preparing points
0.044 * * * [progress]: [2/2] Setting up program.
0.050 * [progress]: [Phase 2 of 3] Improving.
0.051 * [simplify]: Simplifying:
  (- (* x x) (* y y))
0.051 * * [simplify]: iteration 0: 5 enodes
0.054 * * [simplify]: iteration 1: 11 enodes
0.059 * * [simplify]: iteration 2: 18 enodes
0.066 * * [simplify]: iteration 3: 35 enodes
0.084 * * [simplify]: iteration 4: 66 enodes
0.118 * * [simplify]: iteration 5: 159 enodes
0.245 * * [simplify]: iteration 6: 283 enodes
0.871 * * [simplify]: iteration 7: 511 enodes
2.500 * * [simplify]: iteration 8: 1410 enodes
22.396 * * [simplify]: iteration 9: 4751 enodes
28.548 * * [simplify]: iteration complete: 5000 enodes
28.548 * * [simplify]: Extracting #0: cost 1 inf + 0
28.550 * * [simplify]: Extracting #1: cost 251 inf + 0
28.558 * * [simplify]: Extracting #2: cost 704 inf + 1021
28.581 * * [simplify]: Extracting #3: cost 448 inf + 41004
28.661 * * [simplify]: Extracting #4: cost 54 inf + 129000
28.755 * * [simplify]: Extracting #5: cost 0 inf + 142253
28.951 * [simplify]: Simplified to:
  (- (* x x) (* y y))
28.953 * * [progress]: iteration 1 / 4
28.953 * * * [progress]: picking best candidate
28.959 * * * * [pick]: Picked  #<alt (λ (x y) (- (* x x) (* y y)))>
28.960 * * * [progress]: localizing error
28.977 * * * [progress]: generating rewritten candidates
28.977 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
28.998 * * * [progress]: generating series expansions
28.998 * * * * [progress]: [ 1 / 1 ] generating series at (2)
28.998 * [backup-simplify]: Simplify (- (* x x) (* y y)) into (- (pow x 2) (pow y 2))
28.998 * [approximate]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in (x y) around 0
28.998 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in y
28.998 * [taylor]: Taking taylor expansion of (pow x 2) in y
28.998 * [taylor]: Taking taylor expansion of x in y
28.998 * [backup-simplify]: Simplify x into x
28.998 * [taylor]: Taking taylor expansion of (pow y 2) in y
28.998 * [taylor]: Taking taylor expansion of y in y
28.998 * [backup-simplify]: Simplify 0 into 0
28.998 * [backup-simplify]: Simplify 1 into 1
28.998 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
28.998 * [taylor]: Taking taylor expansion of (pow x 2) in x
28.999 * [taylor]: Taking taylor expansion of x in x
28.999 * [backup-simplify]: Simplify 0 into 0
28.999 * [backup-simplify]: Simplify 1 into 1
28.999 * [taylor]: Taking taylor expansion of (pow y 2) in x
28.999 * [taylor]: Taking taylor expansion of y in x
28.999 * [backup-simplify]: Simplify y into y
28.999 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
28.999 * [taylor]: Taking taylor expansion of (pow x 2) in x
28.999 * [taylor]: Taking taylor expansion of x in x
28.999 * [backup-simplify]: Simplify 0 into 0
28.999 * [backup-simplify]: Simplify 1 into 1
28.999 * [taylor]: Taking taylor expansion of (pow y 2) in x
28.999 * [taylor]: Taking taylor expansion of y in x
28.999 * [backup-simplify]: Simplify y into y
28.999 * [backup-simplify]: Simplify (* y y) into (pow y 2)
28.999 * [backup-simplify]: Simplify (- (pow y 2)) into (- (pow y 2))
28.999 * [backup-simplify]: Simplify (+ 0 (- (pow y 2))) into (- (pow y 2))
29.000 * [taylor]: Taking taylor expansion of (- (pow y 2)) in y
29.000 * [taylor]: Taking taylor expansion of (pow y 2) in y
29.000 * [taylor]: Taking taylor expansion of y in y
29.000 * [backup-simplify]: Simplify 0 into 0
29.000 * [backup-simplify]: Simplify 1 into 1
29.000 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
29.001 * [backup-simplify]: Simplify (- 0) into 0
29.001 * [backup-simplify]: Simplify (+ 0 0) into 0
29.001 * [taylor]: Taking taylor expansion of 0 in y
29.001 * [backup-simplify]: Simplify 0 into 0
29.001 * [backup-simplify]: Simplify 0 into 0
29.002 * [backup-simplify]: Simplify (* 1 1) into 1
29.002 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
29.003 * [backup-simplify]: Simplify (- 0) into 0
29.003 * [backup-simplify]: Simplify (+ 1 0) into 1
29.003 * [taylor]: Taking taylor expansion of 1 in y
29.003 * [backup-simplify]: Simplify 1 into 1
29.003 * [backup-simplify]: Simplify 1 into 1
29.003 * [backup-simplify]: Simplify 0 into 0
29.004 * [backup-simplify]: Simplify (* 1 1) into 1
29.004 * [backup-simplify]: Simplify (- 1) into -1
29.004 * [backup-simplify]: Simplify -1 into -1
29.005 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
29.006 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (+ (* 0 0) (* 0 y)))) into 0
29.006 * [backup-simplify]: Simplify (- 0) into 0
29.007 * [backup-simplify]: Simplify (+ 0 0) into 0
29.007 * [taylor]: Taking taylor expansion of 0 in y
29.007 * [backup-simplify]: Simplify 0 into 0
29.007 * [backup-simplify]: Simplify 0 into 0
29.007 * [backup-simplify]: Simplify 0 into 0
29.007 * [backup-simplify]: Simplify 0 into 0
29.008 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
29.008 * [backup-simplify]: Simplify (- 0) into 0
29.008 * [backup-simplify]: Simplify 0 into 0
29.009 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
29.010 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 y))))) into 0
29.011 * [backup-simplify]: Simplify (- 0) into 0
29.011 * [backup-simplify]: Simplify (+ 0 0) into 0
29.011 * [taylor]: Taking taylor expansion of 0 in y
29.011 * [backup-simplify]: Simplify 0 into 0
29.011 * [backup-simplify]: Simplify 0 into 0
29.011 * [backup-simplify]: Simplify 0 into 0
29.012 * [backup-simplify]: Simplify (+ (* -1 (pow (* y 1) 2)) (* 1 (pow (* 1 x) 2))) into (- (pow x 2) (pow y 2))
29.012 * [backup-simplify]: Simplify (- (* (/ 1 x) (/ 1 x)) (* (/ 1 y) (/ 1 y))) into (- (/ 1 (pow x 2)) (/ 1 (pow y 2)))
29.012 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
29.012 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
29.012 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
29.012 * [taylor]: Taking taylor expansion of (pow x 2) in y
29.012 * [taylor]: Taking taylor expansion of x in y
29.012 * [backup-simplify]: Simplify x into x
29.013 * [backup-simplify]: Simplify (* x x) into (pow x 2)
29.013 * [backup-simplify]: Simplify (/ 1 (pow x 2)) into (/ 1 (pow x 2))
29.013 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
29.013 * [taylor]: Taking taylor expansion of (pow y 2) in y
29.013 * [taylor]: Taking taylor expansion of y in y
29.013 * [backup-simplify]: Simplify 0 into 0
29.013 * [backup-simplify]: Simplify 1 into 1
29.013 * [backup-simplify]: Simplify (* 1 1) into 1
29.014 * [backup-simplify]: Simplify (/ 1 1) into 1
29.014 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
29.014 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
29.014 * [taylor]: Taking taylor expansion of (pow x 2) in x
29.014 * [taylor]: Taking taylor expansion of x in x
29.014 * [backup-simplify]: Simplify 0 into 0
29.014 * [backup-simplify]: Simplify 1 into 1
29.014 * [backup-simplify]: Simplify (* 1 1) into 1
29.015 * [backup-simplify]: Simplify (/ 1 1) into 1
29.015 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
29.015 * [taylor]: Taking taylor expansion of (pow y 2) in x
29.015 * [taylor]: Taking taylor expansion of y in x
29.015 * [backup-simplify]: Simplify y into y
29.015 * [backup-simplify]: Simplify (* y y) into (pow y 2)
29.015 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
29.015 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
29.015 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
29.015 * [taylor]: Taking taylor expansion of (pow x 2) in x
29.015 * [taylor]: Taking taylor expansion of x in x
29.015 * [backup-simplify]: Simplify 0 into 0
29.015 * [backup-simplify]: Simplify 1 into 1
29.015 * [backup-simplify]: Simplify (* 1 1) into 1
29.016 * [backup-simplify]: Simplify (/ 1 1) into 1
29.016 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
29.016 * [taylor]: Taking taylor expansion of (pow y 2) in x
29.016 * [taylor]: Taking taylor expansion of y in x
29.016 * [backup-simplify]: Simplify y into y
29.016 * [backup-simplify]: Simplify (* y y) into (pow y 2)
29.016 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
29.016 * [backup-simplify]: Simplify (+ 1 0) into 1
29.016 * [taylor]: Taking taylor expansion of 1 in y
29.016 * [backup-simplify]: Simplify 1 into 1
29.017 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
29.017 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
29.018 * [backup-simplify]: Simplify (+ 0 0) into 0
29.018 * [taylor]: Taking taylor expansion of 0 in y
29.018 * [backup-simplify]: Simplify 0 into 0
29.019 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
29.020 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
29.020 * [backup-simplify]: Simplify (- (/ 1 (pow y 2))) into (- (/ 1 (pow y 2)))
29.020 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow y 2)))) into (- (/ 1 (pow y 2)))
29.020 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
29.020 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
29.020 * [taylor]: Taking taylor expansion of (pow y 2) in y
29.020 * [taylor]: Taking taylor expansion of y in y
29.020 * [backup-simplify]: Simplify 0 into 0
29.020 * [backup-simplify]: Simplify 1 into 1
29.021 * [backup-simplify]: Simplify (* 1 1) into 1
29.021 * [backup-simplify]: Simplify (/ 1 1) into 1
29.022 * [backup-simplify]: Simplify (- 1) into -1
29.022 * [backup-simplify]: Simplify -1 into -1
29.022 * [backup-simplify]: Simplify 1 into 1
29.023 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
29.024 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
29.024 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
29.025 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))))) into 0
29.026 * [backup-simplify]: Simplify (- 0) into 0
29.026 * [backup-simplify]: Simplify (+ 0 0) into 0
29.026 * [taylor]: Taking taylor expansion of 0 in y
29.026 * [backup-simplify]: Simplify 0 into 0
29.027 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
29.027 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
29.028 * [backup-simplify]: Simplify (- 0) into 0
29.028 * [backup-simplify]: Simplify 0 into 0
29.028 * [backup-simplify]: Simplify 0 into 0
29.028 * [backup-simplify]: Simplify 0 into 0
29.029 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
29.030 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
29.031 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
29.031 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))) (* 0 (/ 0 (pow y 2))))) into 0
29.032 * [backup-simplify]: Simplify (- 0) into 0
29.032 * [backup-simplify]: Simplify (+ 0 0) into 0
29.032 * [taylor]: Taking taylor expansion of 0 in y
29.032 * [backup-simplify]: Simplify 0 into 0
29.033 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
29.034 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
29.035 * [backup-simplify]: Simplify (- 0) into 0
29.035 * [backup-simplify]: Simplify 0 into 0
29.035 * [backup-simplify]: Simplify 0 into 0
29.035 * [backup-simplify]: Simplify 0 into 0
29.036 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 x))) 2)) (* -1 (pow (* (/ 1 (/ 1 y)) 1) 2))) into (- (pow x 2) (pow y 2))
29.036 * [backup-simplify]: Simplify (- (* (/ 1 (- x)) (/ 1 (- x))) (* (/ 1 (- y)) (/ 1 (- y)))) into (- (/ 1 (pow x 2)) (/ 1 (pow y 2)))
29.036 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
29.036 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
29.036 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
29.036 * [taylor]: Taking taylor expansion of (pow x 2) in y
29.036 * [taylor]: Taking taylor expansion of x in y
29.036 * [backup-simplify]: Simplify x into x
29.036 * [backup-simplify]: Simplify (* x x) into (pow x 2)
29.037 * [backup-simplify]: Simplify (/ 1 (pow x 2)) into (/ 1 (pow x 2))
29.037 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
29.037 * [taylor]: Taking taylor expansion of (pow y 2) in y
29.037 * [taylor]: Taking taylor expansion of y in y
29.037 * [backup-simplify]: Simplify 0 into 0
29.037 * [backup-simplify]: Simplify 1 into 1
29.037 * [backup-simplify]: Simplify (* 1 1) into 1
29.038 * [backup-simplify]: Simplify (/ 1 1) into 1
29.038 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
29.038 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
29.038 * [taylor]: Taking taylor expansion of (pow x 2) in x
29.038 * [taylor]: Taking taylor expansion of x in x
29.038 * [backup-simplify]: Simplify 0 into 0
29.038 * [backup-simplify]: Simplify 1 into 1
29.038 * [backup-simplify]: Simplify (* 1 1) into 1
29.039 * [backup-simplify]: Simplify (/ 1 1) into 1
29.039 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
29.039 * [taylor]: Taking taylor expansion of (pow y 2) in x
29.039 * [taylor]: Taking taylor expansion of y in x
29.039 * [backup-simplify]: Simplify y into y
29.039 * [backup-simplify]: Simplify (* y y) into (pow y 2)
29.039 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
29.039 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
29.039 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
29.039 * [taylor]: Taking taylor expansion of (pow x 2) in x
29.039 * [taylor]: Taking taylor expansion of x in x
29.039 * [backup-simplify]: Simplify 0 into 0
29.040 * [backup-simplify]: Simplify 1 into 1
29.040 * [backup-simplify]: Simplify (* 1 1) into 1
29.040 * [backup-simplify]: Simplify (/ 1 1) into 1
29.040 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
29.040 * [taylor]: Taking taylor expansion of (pow y 2) in x
29.040 * [taylor]: Taking taylor expansion of y in x
29.040 * [backup-simplify]: Simplify y into y
29.041 * [backup-simplify]: Simplify (* y y) into (pow y 2)
29.041 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
29.041 * [backup-simplify]: Simplify (+ 1 0) into 1
29.041 * [taylor]: Taking taylor expansion of 1 in y
29.041 * [backup-simplify]: Simplify 1 into 1
29.047 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
29.049 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
29.050 * [backup-simplify]: Simplify (+ 0 0) into 0
29.050 * [taylor]: Taking taylor expansion of 0 in y
29.050 * [backup-simplify]: Simplify 0 into 0
29.051 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
29.052 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
29.052 * [backup-simplify]: Simplify (- (/ 1 (pow y 2))) into (- (/ 1 (pow y 2)))
29.052 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow y 2)))) into (- (/ 1 (pow y 2)))
29.052 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
29.053 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
29.053 * [taylor]: Taking taylor expansion of (pow y 2) in y
29.053 * [taylor]: Taking taylor expansion of y in y
29.053 * [backup-simplify]: Simplify 0 into 0
29.053 * [backup-simplify]: Simplify 1 into 1
29.054 * [backup-simplify]: Simplify (* 1 1) into 1
29.054 * [backup-simplify]: Simplify (/ 1 1) into 1
29.054 * [backup-simplify]: Simplify (- 1) into -1
29.054 * [backup-simplify]: Simplify -1 into -1
29.054 * [backup-simplify]: Simplify 1 into 1
29.056 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
29.057 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
29.057 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
29.057 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))))) into 0
29.058 * [backup-simplify]: Simplify (- 0) into 0
29.059 * [backup-simplify]: Simplify (+ 0 0) into 0
29.059 * [taylor]: Taking taylor expansion of 0 in y
29.059 * [backup-simplify]: Simplify 0 into 0
29.059 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
29.060 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
29.061 * [backup-simplify]: Simplify (- 0) into 0
29.061 * [backup-simplify]: Simplify 0 into 0
29.061 * [backup-simplify]: Simplify 0 into 0
29.061 * [backup-simplify]: Simplify 0 into 0
29.062 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
29.063 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
29.063 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
29.064 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))) (* 0 (/ 0 (pow y 2))))) into 0
29.064 * [backup-simplify]: Simplify (- 0) into 0
29.065 * [backup-simplify]: Simplify (+ 0 0) into 0
29.065 * [taylor]: Taking taylor expansion of 0 in y
29.065 * [backup-simplify]: Simplify 0 into 0
29.066 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
29.067 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
29.067 * [backup-simplify]: Simplify (- 0) into 0
29.067 * [backup-simplify]: Simplify 0 into 0
29.068 * [backup-simplify]: Simplify 0 into 0
29.068 * [backup-simplify]: Simplify 0 into 0
29.068 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 (- x)))) 2)) (* -1 (pow (* (/ 1 (/ 1 (- y))) 1) 2))) into (- (pow x 2) (pow y 2))
29.068 * * * [progress]: simplifying candidates
29.069 * [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))
29.070 * * [simplify]: iteration 0: 38 enodes
29.091 * * [simplify]: iteration 1: 101 enodes
29.160 * * [simplify]: iteration 2: 298 enodes
29.479 * * [simplify]: iteration 3: 1335 enodes
31.339 * * [simplify]: iteration complete: 5004 enodes
31.339 * * [simplify]: Extracting #0: cost 17 inf + 0
31.340 * * [simplify]: Extracting #1: cost 344 inf + 1
31.353 * * [simplify]: Extracting #2: cost 1280 inf + 11734
31.407 * * [simplify]: Extracting #3: cost 855 inf + 140389
31.668 * * [simplify]: Extracting #4: cost 122 inf + 319029
31.855 * * [simplify]: Extracting #5: cost 26 inf + 341771
31.993 * * [simplify]: Extracting #6: cost 3 inf + 348673
32.127 * * [simplify]: Extracting #7: cost 0 inf + 350561
32.258 * [simplify]: Simplified to:
  (* (- x y) (+ x y))
  0
  (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 (* y y) (* x x) (fma (* x x) (* x x) (* (* y y) (* y y))))
  (- (* y y))
  (- (* (* x x) (* x x)) (* (* y y) (* 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))
32.259 * * * [progress]: adding candidates to table
32.440 * * [progress]: iteration 2 / 4
32.462 * * * [progress]: picking best candidate
32.475 * * * * [pick]: Picked  #<alt (λ (x y) (* (- x y) (+ x y)))>
32.487 * * * [progress]: localizing error
32.511 * * * [progress]: generating rewritten candidates
32.511 * * * [progress]: generating series expansions
32.512 * * * [progress]: simplifying candidates
32.512 * [simplify]: Simplifying:
  
32.512 * * [simplify]: iteration 0: 0 enodes
32.512 * * [simplify]: iteration complete: 0 enodes
32.512 * * [simplify]: Extracting #0: cost 0 inf + 0
32.512 * [simplify]: Simplified to:
  
32.512 * * * [progress]: adding candidates to table
32.513 * [progress]: [Phase 3 of 3] Extracting.
32.523 * [simplify]: Simplifying:
  (* (- x y) (+ x y))
32.523 * * [simplify]: iteration 0: 5 enodes
32.524 * * [simplify]: iteration 1: 7 enodes
32.524 * * [simplify]: iteration complete: 7 enodes
32.524 * * [simplify]: Extracting #0: cost 1 inf + 0
32.524 * * [simplify]: Extracting #1: cost 3 inf + 0
32.524 * * [simplify]: Extracting #2: cost 5 inf + 0
32.525 * * [simplify]: Extracting #3: cost 2 inf + 44
32.525 * * [simplify]: Extracting #4: cost 0 inf + 208
32.525 * [simplify]: Simplified to:
  (* (- x y) (+ x y))
37.032 * [regime-testing]: Baseline error score: 0.0005000625078134767
37.049 * [regime-testing]: Oracle error score: 0.0005000625078134767
37.049 * [regime-testing]: End program error score: 0.0005000625078134767