57.187 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.014 * * * [progress]: [2/2] Setting up program.
0.016 * [progress]: [Phase 2 of 3] Improving.
0.017 * [simplify]: Simplifying:
  (+ x (/ (- y x) 2.0))
0.017 * * [simplify]: iteration 0: 6 enodes
0.018 * * [simplify]: iteration 1: 12 enodes
0.019 * * [simplify]: iteration 2: 19 enodes
0.023 * * [simplify]: iteration 3: 28 enodes
0.027 * * [simplify]: iteration 4: 38 enodes
0.032 * * [simplify]: iteration 5: 54 enodes
0.044 * * [simplify]: iteration 6: 93 enodes
0.057 * * [simplify]: iteration 7: 143 enodes
0.074 * * [simplify]: iteration 8: 183 enodes
0.093 * * [simplify]: iteration 9: 235 enodes
0.120 * * [simplify]: iteration 10: 275 enodes
0.143 * * [simplify]: iteration 11: 327 enodes
0.181 * * [simplify]: iteration 12: 375 enodes
0.233 * * [simplify]: iteration 13: 459 enodes
0.274 * * [simplify]: iteration 14: 503 enodes
0.334 * * [simplify]: iteration 15: 570 enodes
0.378 * * [simplify]: iteration 16: 596 enodes
0.416 * * [simplify]: iteration 17: 633 enodes
0.455 * * [simplify]: iteration 18: 670 enodes
0.507 * * [simplify]: iteration 19: 718 enodes
0.543 * * [simplify]: iteration 20: 757 enodes
0.601 * * [simplify]: iteration 21: 804 enodes
0.638 * * [simplify]: iteration 22: 836 enodes
0.679 * * [simplify]: iteration 23: 881 enodes
0.712 * * [simplify]: iteration 24: 914 enodes
0.761 * * [simplify]: iteration 25: 961 enodes
0.789 * * [simplify]: iteration 26: 999 enodes
0.821 * * [simplify]: iteration 27: 1041 enodes
0.855 * * [simplify]: iteration 28: 1074 enodes
0.903 * * [simplify]: iteration 29: 1127 enodes
0.930 * * [simplify]: iteration 30: 1159 enodes
0.978 * * [simplify]: iteration 31: 1201 enodes
1.019 * * [simplify]: iteration 32: 1238 enodes
1.068 * * [simplify]: iteration 33: 1285 enodes
1.110 * * [simplify]: iteration 34: 1317 enodes
1.161 * * [simplify]: iteration 35: 1364 enodes
1.193 * * [simplify]: iteration 36: 1397 enodes
1.225 * * [simplify]: iteration 37: 1444 enodes
1.254 * * [simplify]: iteration 38: 1482 enodes
1.296 * * [simplify]: iteration 39: 1524 enodes
1.341 * * [simplify]: iteration 40: 1557 enodes
1.395 * * [simplify]: iteration 41: 1610 enodes
1.429 * * [simplify]: iteration 42: 1642 enodes
1.479 * * [simplify]: iteration 43: 1684 enodes
1.524 * * [simplify]: iteration 44: 1721 enodes
1.571 * * [simplify]: iteration 45: 1768 enodes
1.614 * * [simplify]: iteration 46: 1800 enodes
1.662 * * [simplify]: iteration 47: 1847 enodes
1.705 * * [simplify]: iteration 48: 1880 enodes
1.752 * * [simplify]: iteration 49: 1927 enodes
1.792 * * [simplify]: iteration 50: 1965 enodes
1.838 * * [simplify]: iteration 51: 2007 enodes
1.872 * * [simplify]: iteration 52: 2040 enodes
1.908 * * [simplify]: iteration 53: 2093 enodes
1.937 * * [simplify]: iteration 54: 2125 enodes
1.978 * * [simplify]: iteration 55: 2167 enodes
2.006 * * [simplify]: iteration 56: 2204 enodes
2.047 * * [simplify]: iteration 57: 2251 enodes
2.081 * * [simplify]: iteration 58: 2283 enodes
2.128 * * [simplify]: iteration 59: 2330 enodes
2.160 * * [simplify]: iteration 60: 2363 enodes
2.195 * * [simplify]: iteration 61: 2410 enodes
2.230 * * [simplify]: iteration 62: 2452 enodes
2.268 * * [simplify]: iteration 63: 2494 enodes
2.299 * * [simplify]: iteration 64: 2527 enodes
2.350 * * [simplify]: iteration 65: 2580 enodes
2.392 * * [simplify]: iteration 66: 2612 enodes
2.430 * * [simplify]: iteration 67: 2654 enodes
2.463 * * [simplify]: iteration 68: 2691 enodes
2.501 * * [simplify]: iteration 69: 2738 enodes
2.532 * * [simplify]: iteration 70: 2770 enodes
2.564 * * [simplify]: iteration 71: 2819 enodes
2.601 * * [simplify]: iteration 72: 2852 enodes
2.649 * * [simplify]: iteration 73: 2899 enodes
2.679 * * [simplify]: iteration 74: 2937 enodes
2.718 * * [simplify]: iteration 75: 2979 enodes
2.752 * * [simplify]: iteration 76: 3012 enodes
2.789 * * [simplify]: iteration 77: 3065 enodes
2.816 * * [simplify]: iteration 78: 3097 enodes
2.861 * * [simplify]: iteration 79: 3139 enodes
2.890 * * [simplify]: iteration 80: 3178 enodes
2.923 * * [simplify]: iteration 81: 3225 enodes
2.950 * * [simplify]: iteration 82: 3257 enodes
2.988 * * [simplify]: iteration 83: 3304 enodes
3.015 * * [simplify]: iteration 84: 3337 enodes
3.062 * * [simplify]: iteration 85: 3384 enodes
3.092 * * [simplify]: iteration 86: 3426 enodes
3.127 * * [simplify]: iteration 87: 3468 enodes
3.164 * * [simplify]: iteration 88: 3501 enodes
3.220 * * [simplify]: iteration 89: 3554 enodes
3.268 * * [simplify]: iteration 90: 3586 enodes
3.308 * * [simplify]: iteration 91: 3628 enodes
3.350 * * [simplify]: iteration 92: 3665 enodes
3.389 * * [simplify]: iteration 93: 3712 enodes
3.418 * * [simplify]: iteration 94: 3744 enodes
3.449 * * [simplify]: iteration 95: 3789 enodes
3.479 * * [simplify]: iteration 96: 3822 enodes
3.511 * * [simplify]: iteration 97: 3869 enodes
3.540 * * [simplify]: iteration 98: 3911 enodes
3.573 * * [simplify]: iteration 99: 3953 enodes
3.602 * * [simplify]: iteration 100: 3986 enodes
3.638 * * [simplify]: iteration 101: 4039 enodes
3.665 * * [simplify]: iteration 102: 4071 enodes
3.700 * * [simplify]: iteration 103: 4113 enodes
3.743 * * [simplify]: iteration 104: 4150 enodes
3.781 * * [simplify]: iteration 105: 4197 enodes
3.819 * * [simplify]: iteration 106: 4229 enodes
3.870 * * [simplify]: iteration 107: 4278 enodes
3.912 * * [simplify]: iteration 108: 4311 enodes
3.954 * * [simplify]: iteration 109: 4358 enodes
3.989 * * [simplify]: iteration 110: 4396 enodes
4.034 * * [simplify]: iteration 111: 4438 enodes
4.076 * * [simplify]: iteration 112: 4471 enodes
4.120 * * [simplify]: iteration 113: 4524 enodes
4.163 * * [simplify]: iteration 114: 4556 enodes
4.214 * * [simplify]: iteration 115: 4598 enodes
4.259 * * [simplify]: iteration 116: 4637 enodes
4.306 * * [simplify]: iteration 117: 4684 enodes
4.349 * * [simplify]: iteration 118: 4716 enodes
4.399 * * [simplify]: iteration 119: 4765 enodes
4.433 * * [simplify]: iteration 120: 4798 enodes
4.471 * * [simplify]: iteration 121: 4845 enodes
4.516 * * [simplify]: iteration 122: 4883 enodes
4.563 * * [simplify]: iteration 123: 4925 enodes
4.609 * * [simplify]: iteration 124: 4958 enodes
4.640 * * [simplify]: iteration complete: 5000 enodes
4.640 * * [simplify]: Extracting #0: cost 1 inf + 0
4.640 * * [simplify]: Extracting #1: cost 18 inf + 0
4.640 * * [simplify]: Extracting #2: cost 26 inf + 1
4.641 * * [simplify]: Extracting #3: cost 24 inf + 536
4.642 * * [simplify]: Extracting #4: cost 3 inf + 2222
4.644 * * [simplify]: Extracting #5: cost 0 inf + 2631
4.645 * [simplify]: Simplified to:
  (+ (/ (- y x) 2.0) x)
4.646 * * [progress]: iteration 1 / 4
4.646 * * * [progress]: picking best candidate
4.649 * * * * [pick]: Picked  #<alt (λ (x y) (+ x (/ (- y x) 2.0)))>
4.649 * * * [progress]: localizing error
4.657 * * * [progress]: generating rewritten candidates
4.657 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
4.689 * * * [progress]: generating series expansions
4.689 * * * * [progress]: [ 1 / 1 ] generating series at (2)
4.689 * [backup-simplify]: Simplify (+ x (/ (- y x) 2.0)) into (+ (* 0.5 x) (* 0.5 y))
4.689 * [approximate]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in (x y) around 0
4.689 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in y
4.689 * [taylor]: Taking taylor expansion of (* 0.5 x) in y
4.689 * [taylor]: Taking taylor expansion of 0.5 in y
4.689 * [backup-simplify]: Simplify 0.5 into 0.5
4.689 * [taylor]: Taking taylor expansion of x in y
4.689 * [backup-simplify]: Simplify x into x
4.689 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
4.690 * [taylor]: Taking taylor expansion of 0.5 in y
4.690 * [backup-simplify]: Simplify 0.5 into 0.5
4.690 * [taylor]: Taking taylor expansion of y in y
4.690 * [backup-simplify]: Simplify 0 into 0
4.690 * [backup-simplify]: Simplify 1 into 1
4.690 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in x
4.690 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
4.690 * [taylor]: Taking taylor expansion of 0.5 in x
4.690 * [backup-simplify]: Simplify 0.5 into 0.5
4.690 * [taylor]: Taking taylor expansion of x in x
4.690 * [backup-simplify]: Simplify 0 into 0
4.690 * [backup-simplify]: Simplify 1 into 1
4.690 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
4.690 * [taylor]: Taking taylor expansion of 0.5 in x
4.690 * [backup-simplify]: Simplify 0.5 into 0.5
4.690 * [taylor]: Taking taylor expansion of y in x
4.690 * [backup-simplify]: Simplify y into y
4.690 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in x
4.690 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
4.690 * [taylor]: Taking taylor expansion of 0.5 in x
4.690 * [backup-simplify]: Simplify 0.5 into 0.5
4.690 * [taylor]: Taking taylor expansion of x in x
4.690 * [backup-simplify]: Simplify 0 into 0
4.690 * [backup-simplify]: Simplify 1 into 1
4.690 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
4.690 * [taylor]: Taking taylor expansion of 0.5 in x
4.690 * [backup-simplify]: Simplify 0.5 into 0.5
4.690 * [taylor]: Taking taylor expansion of y in x
4.690 * [backup-simplify]: Simplify y into y
4.691 * [backup-simplify]: Simplify (* 0.5 0) into 0
4.691 * [backup-simplify]: Simplify (* 0.5 y) into (* 0.5 y)
4.691 * [backup-simplify]: Simplify (+ 0 (* 0.5 y)) into (* 0.5 y)
4.691 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
4.691 * [taylor]: Taking taylor expansion of 0.5 in y
4.691 * [backup-simplify]: Simplify 0.5 into 0.5
4.691 * [taylor]: Taking taylor expansion of y in y
4.691 * [backup-simplify]: Simplify 0 into 0
4.691 * [backup-simplify]: Simplify 1 into 1
4.692 * [backup-simplify]: Simplify (* 0.5 0) into 0
4.692 * [backup-simplify]: Simplify 0 into 0
4.693 * [backup-simplify]: Simplify (+ (* 0.5 1) (* 0 0)) into 0.5
4.693 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 y)) into 0
4.694 * [backup-simplify]: Simplify (+ 0.5 0) into 0.5
4.694 * [taylor]: Taking taylor expansion of 0.5 in y
4.694 * [backup-simplify]: Simplify 0.5 into 0.5
4.694 * [backup-simplify]: Simplify 0.5 into 0.5
4.695 * [backup-simplify]: Simplify (+ (* 0.5 1) (* 0 0)) into 0.5
4.695 * [backup-simplify]: Simplify 0.5 into 0.5
4.696 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 1) (* 0 0))) into 0
4.696 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 y))) into 0
4.697 * [backup-simplify]: Simplify (+ 0 0) into 0
4.697 * [taylor]: Taking taylor expansion of 0 in y
4.697 * [backup-simplify]: Simplify 0 into 0
4.697 * [backup-simplify]: Simplify 0 into 0
4.697 * [backup-simplify]: Simplify 0 into 0
4.697 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 1) (* 0 0))) into 0
4.697 * [backup-simplify]: Simplify 0 into 0
4.699 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
4.700 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 y)))) into 0
4.700 * [backup-simplify]: Simplify (+ 0 0) into 0
4.700 * [taylor]: Taking taylor expansion of 0 in y
4.700 * [backup-simplify]: Simplify 0 into 0
4.700 * [backup-simplify]: Simplify 0 into 0
4.700 * [backup-simplify]: Simplify 0 into 0
4.700 * [backup-simplify]: Simplify 0 into 0
4.700 * [backup-simplify]: Simplify (+ (* 0.5 (* y 1)) (* 0.5 (* 1 x))) into (+ (* 0.5 x) (* 0.5 y))
4.701 * [backup-simplify]: Simplify (+ (/ 1 x) (/ (- (/ 1 y) (/ 1 x)) 2.0)) into (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y)))
4.701 * [approximate]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y))) in (x y) around 0
4.701 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y))) in y
4.701 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y
4.701 * [taylor]: Taking taylor expansion of 0.5 in y
4.701 * [backup-simplify]: Simplify 0.5 into 0.5
4.701 * [taylor]: Taking taylor expansion of (/ 1 x) in y
4.701 * [taylor]: Taking taylor expansion of x in y
4.701 * [backup-simplify]: Simplify x into x
4.701 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
4.701 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
4.701 * [taylor]: Taking taylor expansion of 0.5 in y
4.701 * [backup-simplify]: Simplify 0.5 into 0.5
4.701 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.701 * [taylor]: Taking taylor expansion of y in y
4.701 * [backup-simplify]: Simplify 0 into 0
4.701 * [backup-simplify]: Simplify 1 into 1
4.701 * [backup-simplify]: Simplify (/ 1 1) into 1
4.701 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y))) in x
4.701 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
4.701 * [taylor]: Taking taylor expansion of 0.5 in x
4.702 * [backup-simplify]: Simplify 0.5 into 0.5
4.702 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.702 * [taylor]: Taking taylor expansion of x in x
4.702 * [backup-simplify]: Simplify 0 into 0
4.702 * [backup-simplify]: Simplify 1 into 1
4.702 * [backup-simplify]: Simplify (/ 1 1) into 1
4.702 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
4.702 * [taylor]: Taking taylor expansion of 0.5 in x
4.702 * [backup-simplify]: Simplify 0.5 into 0.5
4.702 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.702 * [taylor]: Taking taylor expansion of y in x
4.702 * [backup-simplify]: Simplify y into y
4.702 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.702 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y))) in x
4.702 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
4.702 * [taylor]: Taking taylor expansion of 0.5 in x
4.702 * [backup-simplify]: Simplify 0.5 into 0.5
4.702 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.702 * [taylor]: Taking taylor expansion of x in x
4.702 * [backup-simplify]: Simplify 0 into 0
4.702 * [backup-simplify]: Simplify 1 into 1
4.703 * [backup-simplify]: Simplify (/ 1 1) into 1
4.703 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
4.703 * [taylor]: Taking taylor expansion of 0.5 in x
4.703 * [backup-simplify]: Simplify 0.5 into 0.5
4.703 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.703 * [taylor]: Taking taylor expansion of y in x
4.703 * [backup-simplify]: Simplify y into y
4.703 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.703 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
4.704 * [backup-simplify]: Simplify (+ 0.5 0) into 0.5
4.704 * [taylor]: Taking taylor expansion of 0.5 in y
4.704 * [backup-simplify]: Simplify 0.5 into 0.5
4.705 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.705 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0
4.705 * [backup-simplify]: Simplify (* 0.5 (/ 1 y)) into (/ 0.5 y)
4.705 * [backup-simplify]: Simplify (+ 0 (/ 0.5 y)) into (* 0.5 (/ 1 y))
4.705 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
4.705 * [taylor]: Taking taylor expansion of 0.5 in y
4.705 * [backup-simplify]: Simplify 0.5 into 0.5
4.705 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.705 * [taylor]: Taking taylor expansion of y in y
4.705 * [backup-simplify]: Simplify 0 into 0
4.705 * [backup-simplify]: Simplify 1 into 1
4.706 * [backup-simplify]: Simplify (/ 1 1) into 1
4.706 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
4.706 * [backup-simplify]: Simplify 0.5 into 0.5
4.706 * [backup-simplify]: Simplify 0.5 into 0.5
4.707 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.708 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0
4.708 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
4.709 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 (/ 1 y))) into 0
4.709 * [backup-simplify]: Simplify (+ 0 0) into 0
4.709 * [taylor]: Taking taylor expansion of 0 in y
4.709 * [backup-simplify]: Simplify 0 into 0
4.710 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.711 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0
4.711 * [backup-simplify]: Simplify 0 into 0
4.711 * [backup-simplify]: Simplify 0 into 0
4.711 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.712 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
4.713 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.713 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 (/ 1 y)))) into 0
4.714 * [backup-simplify]: Simplify (+ 0 0) into 0
4.714 * [taylor]: Taking taylor expansion of 0 in y
4.714 * [backup-simplify]: Simplify 0 into 0
4.714 * [backup-simplify]: Simplify 0 into 0
4.715 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.716 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0
4.716 * [backup-simplify]: Simplify 0 into 0
4.716 * [backup-simplify]: Simplify 0 into 0
4.716 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.718 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
4.718 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.719 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 y))))) into 0
4.719 * [backup-simplify]: Simplify (+ 0 0) into 0
4.719 * [taylor]: Taking taylor expansion of 0 in y
4.719 * [backup-simplify]: Simplify 0 into 0
4.719 * [backup-simplify]: Simplify 0 into 0
4.719 * [backup-simplify]: Simplify (+ (* 0.5 (* 1 (/ 1 (/ 1 x)))) (* 0.5 (* (/ 1 (/ 1 y)) 1))) into (+ (* 0.5 x) (* 0.5 y))
4.720 * [backup-simplify]: Simplify (+ (/ 1 (- x)) (/ (- (/ 1 (- y)) (/ 1 (- x))) 2.0)) into (- (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y))))
4.720 * [approximate]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y)))) in (x y) around 0
4.720 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y)))) in y
4.720 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y))) in y
4.720 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y
4.720 * [taylor]: Taking taylor expansion of 0.5 in y
4.720 * [backup-simplify]: Simplify 0.5 into 0.5
4.720 * [taylor]: Taking taylor expansion of (/ 1 x) in y
4.720 * [taylor]: Taking taylor expansion of x in y
4.720 * [backup-simplify]: Simplify x into x
4.720 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
4.720 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
4.720 * [taylor]: Taking taylor expansion of 0.5 in y
4.720 * [backup-simplify]: Simplify 0.5 into 0.5
4.720 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.720 * [taylor]: Taking taylor expansion of y in y
4.720 * [backup-simplify]: Simplify 0 into 0
4.720 * [backup-simplify]: Simplify 1 into 1
4.721 * [backup-simplify]: Simplify (/ 1 1) into 1
4.721 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y)))) in x
4.721 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y))) in x
4.721 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
4.721 * [taylor]: Taking taylor expansion of 0.5 in x
4.721 * [backup-simplify]: Simplify 0.5 into 0.5
4.721 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.721 * [taylor]: Taking taylor expansion of x in x
4.721 * [backup-simplify]: Simplify 0 into 0
4.721 * [backup-simplify]: Simplify 1 into 1
4.721 * [backup-simplify]: Simplify (/ 1 1) into 1
4.721 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
4.721 * [taylor]: Taking taylor expansion of 0.5 in x
4.721 * [backup-simplify]: Simplify 0.5 into 0.5
4.721 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.721 * [taylor]: Taking taylor expansion of y in x
4.721 * [backup-simplify]: Simplify y into y
4.721 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.721 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y)))) in x
4.721 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y))) in x
4.721 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
4.721 * [taylor]: Taking taylor expansion of 0.5 in x
4.721 * [backup-simplify]: Simplify 0.5 into 0.5
4.722 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.722 * [taylor]: Taking taylor expansion of x in x
4.722 * [backup-simplify]: Simplify 0 into 0
4.722 * [backup-simplify]: Simplify 1 into 1
4.722 * [backup-simplify]: Simplify (/ 1 1) into 1
4.722 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
4.722 * [taylor]: Taking taylor expansion of 0.5 in x
4.722 * [backup-simplify]: Simplify 0.5 into 0.5
4.722 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.722 * [taylor]: Taking taylor expansion of y in x
4.722 * [backup-simplify]: Simplify y into y
4.722 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.723 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
4.723 * [backup-simplify]: Simplify (+ 0.5 0) into 0.5
4.723 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
4.723 * [taylor]: Taking taylor expansion of (- 0.5) in y
4.723 * [taylor]: Taking taylor expansion of 0.5 in y
4.723 * [backup-simplify]: Simplify 0.5 into 0.5
4.724 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.725 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0
4.725 * [backup-simplify]: Simplify (* 0.5 (/ 1 y)) into (/ 0.5 y)
4.725 * [backup-simplify]: Simplify (+ 0 (/ 0.5 y)) into (* 0.5 (/ 1 y))
4.725 * [backup-simplify]: Simplify (- (* 0.5 (/ 1 y))) into (- (* 0.5 (/ 1 y)))
4.725 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 y))) in y
4.725 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
4.725 * [taylor]: Taking taylor expansion of 0.5 in y
4.725 * [backup-simplify]: Simplify 0.5 into 0.5
4.725 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.725 * [taylor]: Taking taylor expansion of y in y
4.725 * [backup-simplify]: Simplify 0 into 0
4.725 * [backup-simplify]: Simplify 1 into 1
4.726 * [backup-simplify]: Simplify (/ 1 1) into 1
4.726 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
4.726 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
4.727 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
4.727 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
4.727 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
4.728 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.729 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0
4.729 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
4.730 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 (/ 1 y))) into 0
4.730 * [backup-simplify]: Simplify (+ 0 0) into 0
4.730 * [backup-simplify]: Simplify (- 0) into 0
4.730 * [taylor]: Taking taylor expansion of 0 in y
4.730 * [backup-simplify]: Simplify 0 into 0
4.731 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.732 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0
4.732 * [backup-simplify]: Simplify (- 0) into 0
4.732 * [backup-simplify]: Simplify 0 into 0
4.733 * [backup-simplify]: Simplify (- 0) into 0
4.733 * [backup-simplify]: Simplify 0 into 0
4.733 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.734 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
4.734 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.735 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 (/ 1 y)))) into 0
4.736 * [backup-simplify]: Simplify (+ 0 0) into 0
4.736 * [backup-simplify]: Simplify (- 0) into 0
4.736 * [taylor]: Taking taylor expansion of 0 in y
4.736 * [backup-simplify]: Simplify 0 into 0
4.736 * [backup-simplify]: Simplify 0 into 0
4.737 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.738 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0
4.738 * [backup-simplify]: Simplify (- 0) into 0
4.738 * [backup-simplify]: Simplify 0 into 0
4.738 * [backup-simplify]: Simplify (- 0) into 0
4.738 * [backup-simplify]: Simplify 0 into 0
4.739 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.740 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
4.741 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.742 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 y))))) into 0
4.742 * [backup-simplify]: Simplify (+ 0 0) into 0
4.742 * [backup-simplify]: Simplify (- 0) into 0
4.742 * [taylor]: Taking taylor expansion of 0 in y
4.742 * [backup-simplify]: Simplify 0 into 0
4.742 * [backup-simplify]: Simplify 0 into 0
4.743 * [backup-simplify]: Simplify (+ (* (- 0.5) (* 1 (/ 1 (/ 1 (- x))))) (* (- 0.5) (* (/ 1 (/ 1 (- y))) 1))) into (+ (* 0.5 x) (* 0.5 y))
4.743 * * * [progress]: simplifying candidates
4.744 * [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))
4.744 * * [simplify]: iteration 0: 33 enodes
4.756 * * [simplify]: iteration 1: 92 enodes
4.789 * * [simplify]: iteration 2: 246 enodes
4.889 * * [simplify]: iteration 3: 736 enodes
5.442 * * [simplify]: iteration 4: 3909 enodes
6.587 * * [simplify]: iteration complete: 5000 enodes
6.588 * * [simplify]: Extracting #0: cost 13 inf + 0
6.589 * * [simplify]: Extracting #1: cost 204 inf + 0
6.592 * * [simplify]: Extracting #2: cost 951 inf + 3
6.601 * * [simplify]: Extracting #3: cost 1256 inf + 15143
6.646 * * [simplify]: Extracting #4: cost 656 inf + 161032
6.738 * * [simplify]: Extracting #5: cost 142 inf + 302080
6.842 * * [simplify]: Extracting #6: cost 40 inf + 331843
6.948 * * [simplify]: Extracting #7: cost 11 inf + 337779
7.053 * * [simplify]: Extracting #8: cost 0 inf + 340562
7.137 * [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))
7.137 * * * [progress]: adding candidates to table
7.183 * * [progress]: iteration 2 / 4
7.183 * * * [progress]: picking best candidate
7.186 * * * * [pick]: Picked  #<alt (λ (x y) (* 0.5 (+ x y)))>
7.186 * * * [progress]: localizing error
7.191 * * * [progress]: generating rewritten candidates
7.191 * * * [progress]: generating series expansions
7.191 * * * [progress]: simplifying candidates
7.191 * [simplify]: Simplifying:
  
7.191 * * [simplify]: iteration 0: 0 enodes
7.191 * * [simplify]: iteration complete: 0 enodes
7.191 * * [simplify]: Extracting #0: cost 0 inf + 0
7.191 * [simplify]: Simplified to:
  
7.191 * * * [progress]: adding candidates to table
7.192 * [progress]: [Phase 3 of 3] Extracting.
7.195 * [simplify]: Simplifying:
  (* 0.5 (+ x y))
7.195 * * [simplify]: iteration 0: 5 enodes
7.195 * * [simplify]: iteration 1: 7 enodes
7.195 * * [simplify]: iteration complete: 7 enodes
7.195 * * [simplify]: Extracting #0: cost 1 inf + 0
7.195 * * [simplify]: Extracting #1: cost 3 inf + 0
7.195 * * [simplify]: Extracting #2: cost 4 inf + 1
7.195 * * [simplify]: Extracting #3: cost 0 inf + 128
7.195 * [simplify]: Simplified to:
  (* (+ x y) 0.5)
7.948 * [regime-testing]: Baseline error score: 0
7.959 * [regime-testing]: Oracle error score: 0
7.959 * [regime-testing]: End program error score: 0
8.041 * [regime-testing]: Target error score: 0