31.437 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.015 * * * [progress]: [2/2] Setting up program.
0.020 * [progress]: [Phase 2 of 3] Improving.
0.020 * [simplify]: Simplifying:
  (+ x (/ (- y x) 2.0))
0.020 * * [simplify]: iteration 0: 6 enodes
0.021 * * [simplify]: iteration 1: 12 enodes
0.024 * * [simplify]: iteration 2: 19 enodes
0.028 * * [simplify]: iteration 3: 28 enodes
0.033 * * [simplify]: iteration 4: 38 enodes
0.039 * * [simplify]: iteration 5: 54 enodes
0.050 * * [simplify]: iteration 6: 93 enodes
0.064 * * [simplify]: iteration 7: 143 enodes
0.083 * * [simplify]: iteration 8: 183 enodes
0.105 * * [simplify]: iteration 9: 235 enodes
0.129 * * [simplify]: iteration 10: 275 enodes
0.152 * * [simplify]: iteration 11: 327 enodes
0.183 * * [simplify]: iteration 12: 375 enodes
0.227 * * [simplify]: iteration 13: 459 enodes
0.268 * * [simplify]: iteration 14: 503 enodes
0.319 * * [simplify]: iteration 15: 570 enodes
0.351 * * [simplify]: iteration 16: 596 enodes
0.389 * * [simplify]: iteration 17: 633 enodes
0.421 * * [simplify]: iteration 18: 670 enodes
0.473 * * [simplify]: iteration 19: 718 enodes
0.516 * * [simplify]: iteration 20: 757 enodes
0.555 * * [simplify]: iteration 21: 804 enodes
0.595 * * [simplify]: iteration 22: 836 enodes
0.636 * * [simplify]: iteration 23: 881 enodes
0.668 * * [simplify]: iteration 24: 914 enodes
0.703 * * [simplify]: iteration 25: 961 enodes
0.744 * * [simplify]: iteration 26: 999 enodes
0.789 * * [simplify]: iteration 27: 1041 enodes
0.826 * * [simplify]: iteration 28: 1074 enodes
0.876 * * [simplify]: iteration 29: 1127 enodes
0.915 * * [simplify]: iteration 30: 1159 enodes
0.961 * * [simplify]: iteration 31: 1201 enodes
1.004 * * [simplify]: iteration 32: 1238 enodes
1.046 * * [simplify]: iteration 33: 1285 enodes
1.085 * * [simplify]: iteration 34: 1317 enodes
1.132 * * [simplify]: iteration 35: 1364 enodes
1.170 * * [simplify]: iteration 36: 1397 enodes
1.212 * * [simplify]: iteration 37: 1444 enodes
1.252 * * [simplify]: iteration 38: 1482 enodes
1.295 * * [simplify]: iteration 39: 1524 enodes
1.337 * * [simplify]: iteration 40: 1557 enodes
1.374 * * [simplify]: iteration 41: 1610 enodes
1.405 * * [simplify]: iteration 42: 1642 enodes
1.448 * * [simplify]: iteration 43: 1684 enodes
1.486 * * [simplify]: iteration 44: 1721 enodes
1.531 * * [simplify]: iteration 45: 1768 enodes
1.578 * * [simplify]: iteration 46: 1800 enodes
1.619 * * [simplify]: iteration 47: 1847 enodes
1.655 * * [simplify]: iteration 48: 1880 enodes
1.703 * * [simplify]: iteration 49: 1927 enodes
1.746 * * [simplify]: iteration 50: 1965 enodes
1.789 * * [simplify]: iteration 51: 2007 enodes
1.846 * * [simplify]: iteration 52: 2040 enodes
1.895 * * [simplify]: iteration 53: 2093 enodes
1.929 * * [simplify]: iteration 54: 2125 enodes
1.966 * * [simplify]: iteration 55: 2167 enodes
1.996 * * [simplify]: iteration 56: 2204 enodes
2.036 * * [simplify]: iteration 57: 2251 enodes
2.076 * * [simplify]: iteration 58: 2283 enodes
2.114 * * [simplify]: iteration 59: 2330 enodes
2.153 * * [simplify]: iteration 60: 2363 enodes
2.200 * * [simplify]: iteration 61: 2410 enodes
2.242 * * [simplify]: iteration 62: 2452 enodes
2.286 * * [simplify]: iteration 63: 2494 enodes
2.334 * * [simplify]: iteration 64: 2527 enodes
2.389 * * [simplify]: iteration 65: 2580 enodes
2.420 * * [simplify]: iteration 66: 2612 enodes
2.457 * * [simplify]: iteration 67: 2654 enodes
2.486 * * [simplify]: iteration 68: 2691 enodes
2.519 * * [simplify]: iteration 69: 2738 enodes
2.547 * * [simplify]: iteration 70: 2770 enodes
2.593 * * [simplify]: iteration 71: 2819 enodes
2.635 * * [simplify]: iteration 72: 2852 enodes
2.684 * * [simplify]: iteration 73: 2899 enodes
2.719 * * [simplify]: iteration 74: 2937 enodes
2.751 * * [simplify]: iteration 75: 2979 enodes
2.782 * * [simplify]: iteration 76: 3012 enodes
2.830 * * [simplify]: iteration 77: 3065 enodes
2.872 * * [simplify]: iteration 78: 3097 enodes
2.923 * * [simplify]: iteration 79: 3139 enodes
2.969 * * [simplify]: iteration 80: 3178 enodes
3.006 * * [simplify]: iteration 81: 3225 enodes
3.040 * * [simplify]: iteration 82: 3257 enodes
3.077 * * [simplify]: iteration 83: 3304 enodes
3.108 * * [simplify]: iteration 84: 3337 enodes
3.143 * * [simplify]: iteration 85: 3384 enodes
3.182 * * [simplify]: iteration 86: 3426 enodes
3.218 * * [simplify]: iteration 87: 3468 enodes
3.247 * * [simplify]: iteration 88: 3501 enodes
3.286 * * [simplify]: iteration 89: 3554 enodes
3.321 * * [simplify]: iteration 90: 3586 enodes
3.375 * * [simplify]: iteration 91: 3628 enodes
3.424 * * [simplify]: iteration 92: 3665 enodes
3.474 * * [simplify]: iteration 93: 3712 enodes
3.524 * * [simplify]: iteration 94: 3744 enodes
3.564 * * [simplify]: iteration 95: 3789 enodes
3.593 * * [simplify]: iteration 96: 3822 enodes
3.626 * * [simplify]: iteration 97: 3869 enodes
3.657 * * [simplify]: iteration 98: 3911 enodes
3.694 * * [simplify]: iteration 99: 3953 enodes
3.724 * * [simplify]: iteration 100: 3986 enodes
3.768 * * [simplify]: iteration 101: 4039 enodes
3.815 * * [simplify]: iteration 102: 4071 enodes
3.865 * * [simplify]: iteration 103: 4113 enodes
3.899 * * [simplify]: iteration 104: 4150 enodes
3.964 * * [simplify]: iteration 105: 4197 enodes
4.002 * * [simplify]: iteration 106: 4229 enodes
4.046 * * [simplify]: iteration 107: 4278 enodes
4.094 * * [simplify]: iteration 108: 4311 enodes
4.143 * * [simplify]: iteration 109: 4358 enodes
4.184 * * [simplify]: iteration 110: 4396 enodes
4.224 * * [simplify]: iteration 111: 4438 enodes
4.284 * * [simplify]: iteration 112: 4471 enodes
4.344 * * [simplify]: iteration 113: 4524 enodes
4.386 * * [simplify]: iteration 114: 4556 enodes
4.434 * * [simplify]: iteration 115: 4598 enodes
4.472 * * [simplify]: iteration 116: 4637 enodes
4.513 * * [simplify]: iteration 117: 4684 enodes
4.545 * * [simplify]: iteration 118: 4716 enodes
4.589 * * [simplify]: iteration 119: 4765 enodes
4.620 * * [simplify]: iteration 120: 4798 enodes
4.666 * * [simplify]: iteration 121: 4845 enodes
4.707 * * [simplify]: iteration 122: 4883 enodes
4.755 * * [simplify]: iteration 123: 4925 enodes
4.812 * * [simplify]: iteration 124: 4958 enodes
4.852 * * [simplify]: iteration complete: 5000 enodes
4.853 * * [simplify]: Extracting #0: cost 1 inf + 0
4.853 * * [simplify]: Extracting #1: cost 18 inf + 0
4.853 * * [simplify]: Extracting #2: cost 26 inf + 1
4.854 * * [simplify]: Extracting #3: cost 24 inf + 536
4.855 * * [simplify]: Extracting #4: cost 3 inf + 2222
4.857 * * [simplify]: Extracting #5: cost 0 inf + 2631
4.860 * [simplify]: Simplified to:
  (+ (/ (- y x) 2.0) x)
4.861 * * [progress]: iteration 1 / 4
4.861 * * * [progress]: picking best candidate
4.867 * * * * [pick]: Picked  #<alt (λ (x y) (+ x (/ (- y x) 2.0)))>
4.868 * * * [progress]: localizing error
4.882 * * * [progress]: generating rewritten candidates
4.882 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
4.911 * * * [progress]: generating series expansions
4.911 * * * * [progress]: [ 1 / 1 ] generating series at (2)
4.912 * [backup-simplify]: Simplify (+ x (/ (- y x) 2.0)) into (+ (* 0.5 x) (* 0.5 y))
4.912 * [approximate]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in (x y) around 0
4.912 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in y
4.912 * [taylor]: Taking taylor expansion of (* 0.5 x) in y
4.912 * [taylor]: Taking taylor expansion of 0.5 in y
4.912 * [backup-simplify]: Simplify 0.5 into 0.5
4.912 * [taylor]: Taking taylor expansion of x in y
4.912 * [backup-simplify]: Simplify x into x
4.912 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
4.912 * [taylor]: Taking taylor expansion of 0.5 in y
4.912 * [backup-simplify]: Simplify 0.5 into 0.5
4.912 * [taylor]: Taking taylor expansion of y in y
4.912 * [backup-simplify]: Simplify 0 into 0
4.912 * [backup-simplify]: Simplify 1 into 1
4.912 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in x
4.912 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
4.912 * [taylor]: Taking taylor expansion of 0.5 in x
4.912 * [backup-simplify]: Simplify 0.5 into 0.5
4.912 * [taylor]: Taking taylor expansion of x in x
4.912 * [backup-simplify]: Simplify 0 into 0
4.912 * [backup-simplify]: Simplify 1 into 1
4.912 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
4.912 * [taylor]: Taking taylor expansion of 0.5 in x
4.912 * [backup-simplify]: Simplify 0.5 into 0.5
4.912 * [taylor]: Taking taylor expansion of y in x
4.912 * [backup-simplify]: Simplify y into y
4.912 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in x
4.912 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
4.912 * [taylor]: Taking taylor expansion of 0.5 in x
4.912 * [backup-simplify]: Simplify 0.5 into 0.5
4.912 * [taylor]: Taking taylor expansion of x in x
4.912 * [backup-simplify]: Simplify 0 into 0
4.912 * [backup-simplify]: Simplify 1 into 1
4.912 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
4.912 * [taylor]: Taking taylor expansion of 0.5 in x
4.912 * [backup-simplify]: Simplify 0.5 into 0.5
4.912 * [taylor]: Taking taylor expansion of y in x
4.912 * [backup-simplify]: Simplify y into y
4.913 * [backup-simplify]: Simplify (* 0.5 0) into 0
4.913 * [backup-simplify]: Simplify (* 0.5 y) into (* 0.5 y)
4.913 * [backup-simplify]: Simplify (+ 0 (* 0.5 y)) into (* 0.5 y)
4.913 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
4.913 * [taylor]: Taking taylor expansion of 0.5 in y
4.913 * [backup-simplify]: Simplify 0.5 into 0.5
4.913 * [taylor]: Taking taylor expansion of y in y
4.913 * [backup-simplify]: Simplify 0 into 0
4.913 * [backup-simplify]: Simplify 1 into 1
4.913 * [backup-simplify]: Simplify (* 0.5 0) into 0
4.913 * [backup-simplify]: Simplify 0 into 0
4.914 * [backup-simplify]: Simplify (+ (* 0.5 1) (* 0 0)) into 0.5
4.915 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 y)) into 0
4.915 * [backup-simplify]: Simplify (+ 0.5 0) into 0.5
4.915 * [taylor]: Taking taylor expansion of 0.5 in y
4.915 * [backup-simplify]: Simplify 0.5 into 0.5
4.915 * [backup-simplify]: Simplify 0.5 into 0.5
4.916 * [backup-simplify]: Simplify (+ (* 0.5 1) (* 0 0)) into 0.5
4.916 * [backup-simplify]: Simplify 0.5 into 0.5
4.917 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 1) (* 0 0))) into 0
4.917 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 y))) into 0
4.918 * [backup-simplify]: Simplify (+ 0 0) into 0
4.918 * [taylor]: Taking taylor expansion of 0 in y
4.918 * [backup-simplify]: Simplify 0 into 0
4.918 * [backup-simplify]: Simplify 0 into 0
4.918 * [backup-simplify]: Simplify 0 into 0
4.918 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 1) (* 0 0))) into 0
4.918 * [backup-simplify]: Simplify 0 into 0
4.919 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
4.920 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 y)))) into 0
4.920 * [backup-simplify]: Simplify (+ 0 0) into 0
4.920 * [taylor]: Taking taylor expansion of 0 in y
4.920 * [backup-simplify]: Simplify 0 into 0
4.920 * [backup-simplify]: Simplify 0 into 0
4.920 * [backup-simplify]: Simplify 0 into 0
4.920 * [backup-simplify]: Simplify 0 into 0
4.920 * [backup-simplify]: Simplify (+ (* 0.5 (* y 1)) (* 0.5 (* 1 x))) into (+ (* 0.5 x) (* 0.5 y))
4.920 * [backup-simplify]: Simplify (+ (/ 1 x) (/ (- (/ 1 y) (/ 1 x)) 2.0)) into (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y)))
4.920 * [approximate]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y))) in (x y) around 0
4.920 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y))) in y
4.920 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y
4.920 * [taylor]: Taking taylor expansion of 0.5 in y
4.920 * [backup-simplify]: Simplify 0.5 into 0.5
4.920 * [taylor]: Taking taylor expansion of (/ 1 x) in y
4.920 * [taylor]: Taking taylor expansion of x in y
4.920 * [backup-simplify]: Simplify x into x
4.921 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
4.921 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
4.921 * [taylor]: Taking taylor expansion of 0.5 in y
4.921 * [backup-simplify]: Simplify 0.5 into 0.5
4.921 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.921 * [taylor]: Taking taylor expansion of y in y
4.921 * [backup-simplify]: Simplify 0 into 0
4.921 * [backup-simplify]: Simplify 1 into 1
4.921 * [backup-simplify]: Simplify (/ 1 1) into 1
4.921 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y))) in x
4.921 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
4.921 * [taylor]: Taking taylor expansion of 0.5 in x
4.921 * [backup-simplify]: Simplify 0.5 into 0.5
4.921 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.921 * [taylor]: Taking taylor expansion of x in x
4.921 * [backup-simplify]: Simplify 0 into 0
4.921 * [backup-simplify]: Simplify 1 into 1
4.921 * [backup-simplify]: Simplify (/ 1 1) into 1
4.921 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
4.921 * [taylor]: Taking taylor expansion of 0.5 in x
4.921 * [backup-simplify]: Simplify 0.5 into 0.5
4.921 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.921 * [taylor]: Taking taylor expansion of y in x
4.921 * [backup-simplify]: Simplify y into y
4.921 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.921 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y))) in x
4.922 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
4.922 * [taylor]: Taking taylor expansion of 0.5 in x
4.922 * [backup-simplify]: Simplify 0.5 into 0.5
4.922 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.922 * [taylor]: Taking taylor expansion of x in x
4.922 * [backup-simplify]: Simplify 0 into 0
4.922 * [backup-simplify]: Simplify 1 into 1
4.922 * [backup-simplify]: Simplify (/ 1 1) into 1
4.922 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
4.922 * [taylor]: Taking taylor expansion of 0.5 in x
4.922 * [backup-simplify]: Simplify 0.5 into 0.5
4.922 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.922 * [taylor]: Taking taylor expansion of y in x
4.922 * [backup-simplify]: Simplify y into y
4.922 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.922 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
4.923 * [backup-simplify]: Simplify (+ 0.5 0) into 0.5
4.923 * [taylor]: Taking taylor expansion of 0.5 in y
4.923 * [backup-simplify]: Simplify 0.5 into 0.5
4.923 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.924 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0
4.924 * [backup-simplify]: Simplify (* 0.5 (/ 1 y)) into (/ 0.5 y)
4.924 * [backup-simplify]: Simplify (+ 0 (/ 0.5 y)) into (* 0.5 (/ 1 y))
4.924 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
4.924 * [taylor]: Taking taylor expansion of 0.5 in y
4.924 * [backup-simplify]: Simplify 0.5 into 0.5
4.924 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.924 * [taylor]: Taking taylor expansion of y in y
4.924 * [backup-simplify]: Simplify 0 into 0
4.924 * [backup-simplify]: Simplify 1 into 1
4.924 * [backup-simplify]: Simplify (/ 1 1) into 1
4.924 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
4.924 * [backup-simplify]: Simplify 0.5 into 0.5
4.924 * [backup-simplify]: Simplify 0.5 into 0.5
4.925 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.926 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0
4.926 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
4.926 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 (/ 1 y))) into 0
4.926 * [backup-simplify]: Simplify (+ 0 0) into 0
4.926 * [taylor]: Taking taylor expansion of 0 in y
4.926 * [backup-simplify]: Simplify 0 into 0
4.927 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.927 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0
4.927 * [backup-simplify]: Simplify 0 into 0
4.927 * [backup-simplify]: Simplify 0 into 0
4.928 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.929 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
4.929 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.930 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 (/ 1 y)))) into 0
4.930 * [backup-simplify]: Simplify (+ 0 0) into 0
4.930 * [taylor]: Taking taylor expansion of 0 in y
4.930 * [backup-simplify]: Simplify 0 into 0
4.930 * [backup-simplify]: Simplify 0 into 0
4.930 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.931 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0
4.931 * [backup-simplify]: Simplify 0 into 0
4.931 * [backup-simplify]: Simplify 0 into 0
4.932 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.932 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
4.933 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.934 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 y))))) into 0
4.934 * [backup-simplify]: Simplify (+ 0 0) into 0
4.934 * [taylor]: Taking taylor expansion of 0 in y
4.934 * [backup-simplify]: Simplify 0 into 0
4.934 * [backup-simplify]: Simplify 0 into 0
4.935 * [backup-simplify]: Simplify (+ (* 0.5 (* 1 (/ 1 (/ 1 x)))) (* 0.5 (* (/ 1 (/ 1 y)) 1))) into (+ (* 0.5 x) (* 0.5 y))
4.935 * [backup-simplify]: Simplify (+ (/ 1 (- x)) (/ (- (/ 1 (- y)) (/ 1 (- x))) 2.0)) into (- (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y))))
4.935 * [approximate]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y)))) in (x y) around 0
4.935 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y)))) in y
4.935 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y))) in y
4.935 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y
4.935 * [taylor]: Taking taylor expansion of 0.5 in y
4.935 * [backup-simplify]: Simplify 0.5 into 0.5
4.935 * [taylor]: Taking taylor expansion of (/ 1 x) in y
4.935 * [taylor]: Taking taylor expansion of x in y
4.935 * [backup-simplify]: Simplify x into x
4.935 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
4.935 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
4.935 * [taylor]: Taking taylor expansion of 0.5 in y
4.935 * [backup-simplify]: Simplify 0.5 into 0.5
4.935 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.935 * [taylor]: Taking taylor expansion of y in y
4.935 * [backup-simplify]: Simplify 0 into 0
4.935 * [backup-simplify]: Simplify 1 into 1
4.936 * [backup-simplify]: Simplify (/ 1 1) into 1
4.936 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y)))) in x
4.936 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y))) in x
4.936 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
4.936 * [taylor]: Taking taylor expansion of 0.5 in x
4.936 * [backup-simplify]: Simplify 0.5 into 0.5
4.936 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.936 * [taylor]: Taking taylor expansion of x in x
4.936 * [backup-simplify]: Simplify 0 into 0
4.936 * [backup-simplify]: Simplify 1 into 1
4.936 * [backup-simplify]: Simplify (/ 1 1) into 1
4.936 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
4.936 * [taylor]: Taking taylor expansion of 0.5 in x
4.936 * [backup-simplify]: Simplify 0.5 into 0.5
4.936 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.936 * [taylor]: Taking taylor expansion of y in x
4.937 * [backup-simplify]: Simplify y into y
4.937 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.937 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y)))) in x
4.937 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y))) in x
4.937 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
4.937 * [taylor]: Taking taylor expansion of 0.5 in x
4.937 * [backup-simplify]: Simplify 0.5 into 0.5
4.937 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.937 * [taylor]: Taking taylor expansion of x in x
4.937 * [backup-simplify]: Simplify 0 into 0
4.937 * [backup-simplify]: Simplify 1 into 1
4.937 * [backup-simplify]: Simplify (/ 1 1) into 1
4.937 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
4.937 * [taylor]: Taking taylor expansion of 0.5 in x
4.937 * [backup-simplify]: Simplify 0.5 into 0.5
4.937 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.937 * [taylor]: Taking taylor expansion of y in x
4.937 * [backup-simplify]: Simplify y into y
4.937 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.938 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
4.938 * [backup-simplify]: Simplify (+ 0.5 0) into 0.5
4.939 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
4.939 * [taylor]: Taking taylor expansion of (- 0.5) in y
4.939 * [taylor]: Taking taylor expansion of 0.5 in y
4.939 * [backup-simplify]: Simplify 0.5 into 0.5
4.940 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.940 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0
4.940 * [backup-simplify]: Simplify (* 0.5 (/ 1 y)) into (/ 0.5 y)
4.941 * [backup-simplify]: Simplify (+ 0 (/ 0.5 y)) into (* 0.5 (/ 1 y))
4.941 * [backup-simplify]: Simplify (- (* 0.5 (/ 1 y))) into (- (* 0.5 (/ 1 y)))
4.941 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 y))) in y
4.941 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
4.941 * [taylor]: Taking taylor expansion of 0.5 in y
4.941 * [backup-simplify]: Simplify 0.5 into 0.5
4.941 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.941 * [taylor]: Taking taylor expansion of y in y
4.941 * [backup-simplify]: Simplify 0 into 0
4.941 * [backup-simplify]: Simplify 1 into 1
4.941 * [backup-simplify]: Simplify (/ 1 1) into 1
4.942 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
4.947 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
4.948 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
4.948 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
4.948 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
4.949 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.950 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0
4.951 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
4.951 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 (/ 1 y))) into 0
4.952 * [backup-simplify]: Simplify (+ 0 0) into 0
4.952 * [backup-simplify]: Simplify (- 0) into 0
4.952 * [taylor]: Taking taylor expansion of 0 in y
4.952 * [backup-simplify]: Simplify 0 into 0
4.953 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.954 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0
4.954 * [backup-simplify]: Simplify (- 0) into 0
4.954 * [backup-simplify]: Simplify 0 into 0
4.954 * [backup-simplify]: Simplify (- 0) into 0
4.955 * [backup-simplify]: Simplify 0 into 0
4.955 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.957 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
4.957 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.958 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 (/ 1 y)))) into 0
4.958 * [backup-simplify]: Simplify (+ 0 0) into 0
4.958 * [backup-simplify]: Simplify (- 0) into 0
4.958 * [taylor]: Taking taylor expansion of 0 in y
4.958 * [backup-simplify]: Simplify 0 into 0
4.958 * [backup-simplify]: Simplify 0 into 0
4.959 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.960 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0
4.961 * [backup-simplify]: Simplify (- 0) into 0
4.961 * [backup-simplify]: Simplify 0 into 0
4.961 * [backup-simplify]: Simplify (- 0) into 0
4.961 * [backup-simplify]: Simplify 0 into 0
4.962 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.964 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
4.964 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.965 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 y))))) into 0
4.965 * [backup-simplify]: Simplify (+ 0 0) into 0
4.966 * [backup-simplify]: Simplify (- 0) into 0
4.966 * [taylor]: Taking taylor expansion of 0 in y
4.966 * [backup-simplify]: Simplify 0 into 0
4.966 * [backup-simplify]: Simplify 0 into 0
4.967 * [backup-simplify]: Simplify (+ (* (- 0.5) (* 1 (/ 1 (/ 1 (- x))))) (* (- 0.5) (* (/ 1 (/ 1 (- y))) 1))) into (+ (* 0.5 x) (* 0.5 y))
4.967 * * * [progress]: simplifying candidates
4.967 * [simplify]: Simplifying:
  (* (exp x) (exp (/ (- y x) 2.0)))
  (log (+ x (/ (- y x) 2.0)))
  (exp (+ x (/ (- y x) 2.0)))
  (* (cbrt (+ x (/ (- y x) 2.0))) (cbrt (+ x (/ (- y x) 2.0))))
  (cbrt (+ x (/ (- y x) 2.0)))
  (* (* (+ x (/ (- y x) 2.0)) (+ x (/ (- y x) 2.0))) (+ x (/ (- y x) 2.0)))
  (sqrt (+ x (/ (- y x) 2.0)))
  (sqrt (+ x (/ (- y x) 2.0)))
  (+ (pow x 3) (pow (/ (- y x) 2.0) 3))
  (+ (* x x) (- (* (/ (- y x) 2.0) (/ (- y x) 2.0)) (* x (/ (- y x) 2.0))))
  (- (* x x) (* (/ (- y x) 2.0) (/ (- y x) 2.0)))
  (- x (/ (- y x) 2.0))
  (+ x (/ (- y x) 2.0))
  (+ x (/ y 2.0))
  (+ (* 0.5 x) (* 0.5 y))
  (+ (* 0.5 x) (* 0.5 y))
  (+ (* 0.5 x) (* 0.5 y))
4.968 * * [simplify]: iteration 0: 33 enodes
4.982 * * [simplify]: iteration 1: 92 enodes
5.005 * * [simplify]: iteration 2: 246 enodes
5.094 * * [simplify]: iteration 3: 736 enodes
5.776 * * [simplify]: iteration 4: 3909 enodes
7.441 * * [simplify]: iteration complete: 5000 enodes
7.441 * * [simplify]: Extracting #0: cost 13 inf + 0
7.442 * * [simplify]: Extracting #1: cost 204 inf + 0
7.444 * * [simplify]: Extracting #2: cost 951 inf + 3
7.456 * * [simplify]: Extracting #3: cost 1256 inf + 15143
7.498 * * [simplify]: Extracting #4: cost 656 inf + 161032
7.601 * * [simplify]: Extracting #5: cost 142 inf + 302080
7.736 * * [simplify]: Extracting #6: cost 40 inf + 331843
7.825 * * [simplify]: Extracting #7: cost 11 inf + 337779
7.915 * * [simplify]: Extracting #8: cost 0 inf + 340562
8.013 * [simplify]: Simplified to:
  (exp (+ x (/ (- y x) 2.0)))
  (log (+ (/ (- y x) 2.0) x))
  (exp (+ x (/ (- y x) 2.0)))
  (* (cbrt (+ (/ (- y x) 2.0) x)) (cbrt (+ (/ (- y x) 2.0) x)))
  (cbrt (+ (/ (- y x) 2.0) x))
  (* (+ (/ (- y x) 2.0) x) (* (+ (/ (- y x) 2.0) x) (+ (/ (- y x) 2.0) x)))
  (sqrt (+ (/ (- y x) 2.0) x))
  (sqrt (+ (/ (- y x) 2.0) x))
  (+ (* (* x x) x) (* (/ (- y x) 2.0) (* (/ (- y x) 2.0) (/ (- y x) 2.0))))
  (- (* (/ (- y x) 2.0) (/ (- y x) 2.0)) (* x (- (/ (- y x) 2.0) x)))
  (- (* x x) (* (/ (- y x) 2.0) (/ (- y x) 2.0)))
  (- x (/ (- y x) 2.0))
  (+ (/ (- y x) 2.0) x)
  (+ (/ y 2.0) x)
  (* 0.5 (+ x y))
  (* 0.5 (+ x y))
  (* 0.5 (+ x y))
8.014 * * * [progress]: adding candidates to table
8.085 * * [progress]: iteration 2 / 4
8.086 * * * [progress]: picking best candidate
8.089 * * * * [pick]: Picked  #<alt (λ (x y) (* 0.5 (+ x y)))>
8.089 * * * [progress]: localizing error
8.100 * * * [progress]: generating rewritten candidates
8.100 * * * [progress]: generating series expansions
8.100 * * * [progress]: simplifying candidates
8.100 * [simplify]: Simplifying:
  
8.100 * * [simplify]: iteration 0: 0 enodes
8.100 * * [simplify]: iteration complete: 0 enodes
8.100 * * [simplify]: Extracting #0: cost 0 inf + 0
8.100 * [simplify]: Simplified to:
  
8.100 * * * [progress]: adding candidates to table
8.101 * [progress]: [Phase 3 of 3] Extracting.
8.108 * [simplify]: Simplifying:
  (* 0.5 (+ x y))
8.108 * * [simplify]: iteration 0: 5 enodes
8.109 * * [simplify]: iteration 1: 7 enodes
8.109 * * [simplify]: iteration complete: 7 enodes
8.109 * * [simplify]: Extracting #0: cost 1 inf + 0
8.109 * * [simplify]: Extracting #1: cost 3 inf + 0
8.109 * * [simplify]: Extracting #2: cost 4 inf + 1
8.109 * * [simplify]: Extracting #3: cost 0 inf + 128
8.110 * [simplify]: Simplified to:
  (* (+ x y) 0.5)
9.089 * [regime-testing]: Baseline error score: 0
9.107 * [regime-testing]: Oracle error score: 0
9.107 * [regime-testing]: End program error score: 0
9.203 * [regime-testing]: Target error score: 0