52.820 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.021 * * * [progress]: [2/2] Setting up program.
0.028 * [progress]: [Phase 2 of 3] Improving.
0.029 * [simplify]: Simplifying:
  (+ x (/ (- y x) 2.0))
0.029 * * [simplify]: iteration 0: 6 enodes
0.031 * * [simplify]: iteration 1: 12 enodes
0.036 * * [simplify]: iteration 2: 19 enodes
0.043 * * [simplify]: iteration 3: 28 enodes
0.054 * * [simplify]: iteration 4: 38 enodes
0.066 * * [simplify]: iteration 5: 54 enodes
0.092 * * [simplify]: iteration 6: 93 enodes
0.120 * * [simplify]: iteration 7: 141 enodes
0.153 * * [simplify]: iteration 8: 182 enodes
0.189 * * [simplify]: iteration 9: 240 enodes
0.238 * * [simplify]: iteration 10: 281 enodes
0.274 * * [simplify]: iteration 11: 327 enodes
0.321 * * [simplify]: iteration 12: 367 enodes
0.372 * * [simplify]: iteration 13: 427 enodes
0.411 * * [simplify]: iteration 14: 452 enodes
0.439 * * [simplify]: iteration 15: 488 enodes
0.480 * * [simplify]: iteration 16: 512 enodes
0.513 * * [simplify]: iteration 17: 551 enodes
0.547 * * [simplify]: iteration 18: 575 enodes
0.576 * * [simplify]: iteration 19: 610 enodes
0.616 * * [simplify]: iteration 20: 638 enodes
0.646 * * [simplify]: iteration 21: 669 enodes
0.686 * * [simplify]: iteration 22: 697 enodes
0.720 * * [simplify]: iteration 23: 736 enodes
0.759 * * [simplify]: iteration 24: 760 enodes
0.790 * * [simplify]: iteration 25: 799 enodes
0.825 * * [simplify]: iteration 26: 825 enodes
0.853 * * [simplify]: iteration 27: 860 enodes
0.893 * * [simplify]: iteration 28: 884 enodes
0.921 * * [simplify]: iteration 29: 919 enodes
0.956 * * [simplify]: iteration 30: 945 enodes
0.987 * * [simplify]: iteration 31: 980 enodes
1.029 * * [simplify]: iteration 32: 1008 enodes
1.056 * * [simplify]: iteration 33: 1039 enodes
1.096 * * [simplify]: iteration 34: 1063 enodes
1.133 * * [simplify]: iteration 35: 1106 enodes
1.174 * * [simplify]: iteration 36: 1130 enodes
1.208 * * [simplify]: iteration 37: 1165 enodes
1.243 * * [simplify]: iteration 38: 1189 enodes
1.270 * * [simplify]: iteration 39: 1228 enodes
1.312 * * [simplify]: iteration 40: 1256 enodes
1.340 * * [simplify]: iteration 41: 1287 enodes
1.375 * * [simplify]: iteration 42: 1311 enodes
1.408 * * [simplify]: iteration 43: 1354 enodes
1.444 * * [simplify]: iteration 44: 1378 enodes
1.478 * * [simplify]: iteration 45: 1417 enodes
1.517 * * [simplify]: iteration 46: 1445 enodes
1.547 * * [simplify]: iteration 47: 1476 enodes
1.588 * * [simplify]: iteration 48: 1502 enodes
1.624 * * [simplify]: iteration 49: 1545 enodes
1.658 * * [simplify]: iteration 50: 1569 enodes
1.691 * * [simplify]: iteration 51: 1608 enodes
1.731 * * [simplify]: iteration 52: 1636 enodes
1.758 * * [simplify]: iteration 53: 1667 enodes
1.793 * * [simplify]: iteration 54: 1693 enodes
1.832 * * [simplify]: iteration 55: 1736 enodes
1.872 * * [simplify]: iteration 56: 1760 enodes
1.900 * * [simplify]: iteration 57: 1795 enodes
1.940 * * [simplify]: iteration 58: 1821 enodes
1.976 * * [simplify]: iteration 59: 1860 enodes
2.016 * * [simplify]: iteration 60: 1888 enodes
2.042 * * [simplify]: iteration 61: 1919 enodes
2.072 * * [simplify]: iteration 62: 1947 enodes
2.105 * * [simplify]: iteration 63: 1986 enodes
2.143 * * [simplify]: iteration 64: 2010 enodes
2.174 * * [simplify]: iteration 65: 2049 enodes
2.212 * * [simplify]: iteration 66: 2075 enodes
2.243 * * [simplify]: iteration 67: 2110 enodes
2.282 * * [simplify]: iteration 68: 2138 enodes
2.312 * * [simplify]: iteration 69: 2169 enodes
2.350 * * [simplify]: iteration 70: 2197 enodes
2.388 * * [simplify]: iteration 71: 2236 enodes
2.425 * * [simplify]: iteration 72: 2260 enodes
2.458 * * [simplify]: iteration 73: 2299 enodes
2.500 * * [simplify]: iteration 74: 2327 enodes
2.530 * * [simplify]: iteration 75: 2358 enodes
2.565 * * [simplify]: iteration 76: 2386 enodes
2.598 * * [simplify]: iteration 77: 2425 enodes
2.637 * * [simplify]: iteration 78: 2449 enodes
2.671 * * [simplify]: iteration 79: 2488 enodes
2.707 * * [simplify]: iteration 80: 2514 enodes
2.736 * * [simplify]: iteration 81: 2549 enodes
2.777 * * [simplify]: iteration 82: 2575 enodes
2.808 * * [simplify]: iteration 83: 2610 enodes
2.846 * * [simplify]: iteration 84: 2638 enodes
2.877 * * [simplify]: iteration 85: 2669 enodes
2.914 * * [simplify]: iteration 86: 2697 enodes
2.948 * * [simplify]: iteration 87: 2736 enodes
2.985 * * [simplify]: iteration 88: 2760 enodes
3.018 * * [simplify]: iteration 89: 2799 enodes
3.060 * * [simplify]: iteration 90: 2825 enodes
3.093 * * [simplify]: iteration 91: 2860 enodes
3.134 * * [simplify]: iteration 92: 2888 enodes
3.163 * * [simplify]: iteration 93: 2919 enodes
3.211 * * [simplify]: iteration 94: 2945 enodes
3.247 * * [simplify]: iteration 95: 2988 enodes
3.291 * * [simplify]: iteration 96: 3012 enodes
3.324 * * [simplify]: iteration 97: 3047 enodes
3.365 * * [simplify]: iteration 98: 3073 enodes
3.398 * * [simplify]: iteration 99: 3112 enodes
3.437 * * [simplify]: iteration 100: 3138 enodes
3.467 * * [simplify]: iteration 101: 3173 enodes
3.543 * * [simplify]: iteration 102: 3201 enodes
3.572 * * [simplify]: iteration 103: 3232 enodes
3.610 * * [simplify]: iteration 104: 3260 enodes
3.644 * * [simplify]: iteration 105: 3299 enodes
3.686 * * [simplify]: iteration 106: 3323 enodes
3.720 * * [simplify]: iteration 107: 3362 enodes
3.757 * * [simplify]: iteration 108: 3388 enodes
3.790 * * [simplify]: iteration 109: 3423 enodes
3.827 * * [simplify]: iteration 110: 3451 enodes
3.853 * * [simplify]: iteration 111: 3482 enodes
3.890 * * [simplify]: iteration 112: 3508 enodes
3.929 * * [simplify]: iteration 113: 3551 enodes
3.965 * * [simplify]: iteration 114: 3575 enodes
3.997 * * [simplify]: iteration 115: 3610 enodes
4.034 * * [simplify]: iteration 116: 3634 enodes
4.072 * * [simplify]: iteration 117: 3673 enodes
4.102 * * [simplify]: iteration 118: 3699 enodes
4.130 * * [simplify]: iteration 119: 3734 enodes
4.163 * * [simplify]: iteration 120: 3758 enodes
4.198 * * [simplify]: iteration 121: 3793 enodes
4.236 * * [simplify]: iteration 122: 3819 enodes
4.266 * * [simplify]: iteration 123: 3854 enodes
4.302 * * [simplify]: iteration 124: 3880 enodes
4.334 * * [simplify]: iteration 125: 3915 enodes
4.372 * * [simplify]: iteration 126: 3943 enodes
4.403 * * [simplify]: iteration 127: 3974 enodes
4.443 * * [simplify]: iteration 128: 4000 enodes
4.480 * * [simplify]: iteration 129: 4043 enodes
4.518 * * [simplify]: iteration 130: 4067 enodes
4.550 * * [simplify]: iteration 131: 4106 enodes
4.584 * * [simplify]: iteration 132: 4134 enodes
4.613 * * [simplify]: iteration 133: 4165 enodes
4.651 * * [simplify]: iteration 134: 4193 enodes
4.682 * * [simplify]: iteration 135: 4232 enodes
4.718 * * [simplify]: iteration 136: 4256 enodes
4.754 * * [simplify]: iteration 137: 4291 enodes
4.791 * * [simplify]: iteration 138: 4315 enodes
4.826 * * [simplify]: iteration 139: 4354 enodes
4.865 * * [simplify]: iteration 140: 4380 enodes
4.894 * * [simplify]: iteration 141: 4415 enodes
4.932 * * [simplify]: iteration 142: 4443 enodes
4.963 * * [simplify]: iteration 143: 4474 enodes
5.004 * * [simplify]: iteration 144: 4502 enodes
5.040 * * [simplify]: iteration 145: 4541 enodes
5.080 * * [simplify]: iteration 146: 4565 enodes
5.115 * * [simplify]: iteration 147: 4600 enodes
5.158 * * [simplify]: iteration 148: 4626 enodes
5.192 * * [simplify]: iteration 149: 4665 enodes
5.232 * * [simplify]: iteration 150: 4691 enodes
5.265 * * [simplify]: iteration 151: 4726 enodes
5.312 * * [simplify]: iteration 152: 4754 enodes
5.343 * * [simplify]: iteration 153: 4785 enodes
5.380 * * [simplify]: iteration 154: 4809 enodes
5.422 * * [simplify]: iteration 155: 4852 enodes
5.465 * * [simplify]: iteration 156: 4876 enodes
5.497 * * [simplify]: iteration 157: 4915 enodes
5.536 * * [simplify]: iteration 158: 4941 enodes
5.568 * * [simplify]: iteration 159: 4976 enodes
5.609 * * [simplify]: iteration complete: 5000 enodes
5.609 * * [simplify]: Extracting #0: cost 1 inf + 0
5.609 * * [simplify]: Extracting #1: cost 14 inf + 0
5.609 * * [simplify]: Extracting #2: cost 17 inf + 42
5.609 * * [simplify]: Extracting #3: cost 14 inf + 294
5.610 * * [simplify]: Extracting #4: cost 0 inf + 1567
5.611 * * [simplify]: Extracting #5: cost 0 inf + 1527
5.613 * [simplify]: Simplified to:
  (- x (/ (- x y) 2.0))
5.614 * * [progress]: iteration 1 / 4
5.614 * * * [progress]: picking best candidate
5.620 * * * * [pick]: Picked  #<alt (λ (x y) (+ x (/ (- y x) 2.0)))>
5.620 * * * [progress]: localizing error
5.630 * * * [progress]: generating rewritten candidates
5.630 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
5.671 * * * [progress]: generating series expansions
5.671 * * * * [progress]: [ 1 / 1 ] generating series at (2)
5.671 * [backup-simplify]: Simplify (+ x (/ (- y x) 2.0)) into (+ (* 0.5 x) (* 0.5 y))
5.671 * [approximate]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in (x y) around 0
5.671 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in y
5.671 * [taylor]: Taking taylor expansion of (* 0.5 x) in y
5.672 * [taylor]: Taking taylor expansion of 0.5 in y
5.672 * [backup-simplify]: Simplify 0.5 into 0.5
5.672 * [taylor]: Taking taylor expansion of x in y
5.672 * [backup-simplify]: Simplify x into x
5.672 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
5.672 * [taylor]: Taking taylor expansion of 0.5 in y
5.672 * [backup-simplify]: Simplify 0.5 into 0.5
5.672 * [taylor]: Taking taylor expansion of y in y
5.672 * [backup-simplify]: Simplify 0 into 0
5.672 * [backup-simplify]: Simplify 1 into 1
5.672 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in x
5.672 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
5.672 * [taylor]: Taking taylor expansion of 0.5 in x
5.672 * [backup-simplify]: Simplify 0.5 into 0.5
5.672 * [taylor]: Taking taylor expansion of x in x
5.672 * [backup-simplify]: Simplify 0 into 0
5.672 * [backup-simplify]: Simplify 1 into 1
5.672 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
5.672 * [taylor]: Taking taylor expansion of 0.5 in x
5.672 * [backup-simplify]: Simplify 0.5 into 0.5
5.672 * [taylor]: Taking taylor expansion of y in x
5.672 * [backup-simplify]: Simplify y into y
5.672 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in x
5.672 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
5.672 * [taylor]: Taking taylor expansion of 0.5 in x
5.672 * [backup-simplify]: Simplify 0.5 into 0.5
5.672 * [taylor]: Taking taylor expansion of x in x
5.672 * [backup-simplify]: Simplify 0 into 0
5.672 * [backup-simplify]: Simplify 1 into 1
5.672 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
5.672 * [taylor]: Taking taylor expansion of 0.5 in x
5.672 * [backup-simplify]: Simplify 0.5 into 0.5
5.672 * [taylor]: Taking taylor expansion of y in x
5.672 * [backup-simplify]: Simplify y into y
5.673 * [backup-simplify]: Simplify (* 0.5 0) into 0
5.673 * [backup-simplify]: Simplify (* 0.5 y) into (* 0.5 y)
5.673 * [backup-simplify]: Simplify (+ 0 (* 0.5 y)) into (* 0.5 y)
5.673 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
5.673 * [taylor]: Taking taylor expansion of 0.5 in y
5.673 * [backup-simplify]: Simplify 0.5 into 0.5
5.673 * [taylor]: Taking taylor expansion of y in y
5.673 * [backup-simplify]: Simplify 0 into 0
5.674 * [backup-simplify]: Simplify 1 into 1
5.674 * [backup-simplify]: Simplify (* 0.5 0) into 0
5.674 * [backup-simplify]: Simplify 0 into 0
5.675 * [backup-simplify]: Simplify (+ (* 0.5 1) (* 0 0)) into 0.5
5.676 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 y)) into 0
5.676 * [backup-simplify]: Simplify (+ 0.5 0) into 0.5
5.676 * [taylor]: Taking taylor expansion of 0.5 in y
5.676 * [backup-simplify]: Simplify 0.5 into 0.5
5.676 * [backup-simplify]: Simplify 0.5 into 0.5
5.678 * [backup-simplify]: Simplify (+ (* 0.5 1) (* 0 0)) into 0.5
5.678 * [backup-simplify]: Simplify 0.5 into 0.5
5.679 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 1) (* 0 0))) into 0
5.680 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 y))) into 0
5.680 * [backup-simplify]: Simplify (+ 0 0) into 0
5.680 * [taylor]: Taking taylor expansion of 0 in y
5.680 * [backup-simplify]: Simplify 0 into 0
5.680 * [backup-simplify]: Simplify 0 into 0
5.680 * [backup-simplify]: Simplify 0 into 0
5.681 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 1) (* 0 0))) into 0
5.681 * [backup-simplify]: Simplify 0 into 0
5.683 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
5.684 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 y)))) into 0
5.685 * [backup-simplify]: Simplify (+ 0 0) into 0
5.685 * [taylor]: Taking taylor expansion of 0 in y
5.685 * [backup-simplify]: Simplify 0 into 0
5.685 * [backup-simplify]: Simplify 0 into 0
5.685 * [backup-simplify]: Simplify 0 into 0
5.685 * [backup-simplify]: Simplify 0 into 0
5.685 * [backup-simplify]: Simplify (+ (* 0.5 (* y 1)) (* 0.5 (* 1 x))) into (+ (* 0.5 x) (* 0.5 y))
5.685 * [backup-simplify]: Simplify (+ (/ 1 x) (/ (- (/ 1 y) (/ 1 x)) 2.0)) into (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))
5.685 * [approximate]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in (x y) around 0
5.686 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in y
5.686 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
5.686 * [taylor]: Taking taylor expansion of 0.5 in y
5.686 * [backup-simplify]: Simplify 0.5 into 0.5
5.686 * [taylor]: Taking taylor expansion of (/ 1 y) in y
5.686 * [taylor]: Taking taylor expansion of y in y
5.686 * [backup-simplify]: Simplify 0 into 0
5.686 * [backup-simplify]: Simplify 1 into 1
5.686 * [backup-simplify]: Simplify (/ 1 1) into 1
5.686 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y
5.686 * [taylor]: Taking taylor expansion of 0.5 in y
5.686 * [backup-simplify]: Simplify 0.5 into 0.5
5.686 * [taylor]: Taking taylor expansion of (/ 1 x) in y
5.686 * [taylor]: Taking taylor expansion of x in y
5.686 * [backup-simplify]: Simplify x into x
5.686 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
5.686 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in x
5.686 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
5.687 * [taylor]: Taking taylor expansion of 0.5 in x
5.687 * [backup-simplify]: Simplify 0.5 into 0.5
5.687 * [taylor]: Taking taylor expansion of (/ 1 y) in x
5.687 * [taylor]: Taking taylor expansion of y in x
5.687 * [backup-simplify]: Simplify y into y
5.687 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
5.687 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
5.687 * [taylor]: Taking taylor expansion of 0.5 in x
5.687 * [backup-simplify]: Simplify 0.5 into 0.5
5.687 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.687 * [taylor]: Taking taylor expansion of x in x
5.687 * [backup-simplify]: Simplify 0 into 0
5.687 * [backup-simplify]: Simplify 1 into 1
5.687 * [backup-simplify]: Simplify (/ 1 1) into 1
5.687 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in x
5.688 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
5.688 * [taylor]: Taking taylor expansion of 0.5 in x
5.688 * [backup-simplify]: Simplify 0.5 into 0.5
5.688 * [taylor]: Taking taylor expansion of (/ 1 y) in x
5.688 * [taylor]: Taking taylor expansion of y in x
5.688 * [backup-simplify]: Simplify y into y
5.688 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
5.688 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
5.688 * [taylor]: Taking taylor expansion of 0.5 in x
5.688 * [backup-simplify]: Simplify 0.5 into 0.5
5.688 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.688 * [taylor]: Taking taylor expansion of x in x
5.688 * [backup-simplify]: Simplify 0 into 0
5.688 * [backup-simplify]: Simplify 1 into 1
5.689 * [backup-simplify]: Simplify (/ 1 1) into 1
5.689 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
5.690 * [backup-simplify]: Simplify (+ 0 0.5) into 0.5
5.690 * [taylor]: Taking taylor expansion of 0.5 in y
5.690 * [backup-simplify]: Simplify 0.5 into 0.5
5.690 * [backup-simplify]: Simplify (* 0.5 (/ 1 y)) into (/ 0.5 y)
5.691 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
5.691 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0
5.692 * [backup-simplify]: Simplify (+ (/ 0.5 y) 0) into (* 0.5 (/ 1 y))
5.692 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
5.692 * [taylor]: Taking taylor expansion of 0.5 in y
5.692 * [backup-simplify]: Simplify 0.5 into 0.5
5.692 * [taylor]: Taking taylor expansion of (/ 1 y) in y
5.692 * [taylor]: Taking taylor expansion of y in y
5.692 * [backup-simplify]: Simplify 0 into 0
5.692 * [backup-simplify]: Simplify 1 into 1
5.692 * [backup-simplify]: Simplify (/ 1 1) into 1
5.693 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
5.693 * [backup-simplify]: Simplify 0.5 into 0.5
5.693 * [backup-simplify]: Simplify 0.5 into 0.5
5.693 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
5.693 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 (/ 1 y))) into 0
5.694 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
5.695 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0
5.696 * [backup-simplify]: Simplify (+ 0 0) into 0
5.696 * [taylor]: Taking taylor expansion of 0 in y
5.696 * [backup-simplify]: Simplify 0 into 0
5.697 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
5.698 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0
5.698 * [backup-simplify]: Simplify 0 into 0
5.698 * [backup-simplify]: Simplify 0 into 0
5.698 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
5.699 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 (/ 1 y)))) into 0
5.700 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
5.702 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
5.702 * [backup-simplify]: Simplify (+ 0 0) into 0
5.702 * [taylor]: Taking taylor expansion of 0 in y
5.702 * [backup-simplify]: Simplify 0 into 0
5.703 * [backup-simplify]: Simplify 0 into 0
5.703 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
5.704 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0
5.704 * [backup-simplify]: Simplify 0 into 0
5.704 * [backup-simplify]: Simplify 0 into 0
5.705 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
5.706 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 y))))) into 0
5.707 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
5.708 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
5.708 * [backup-simplify]: Simplify (+ 0 0) into 0
5.709 * [taylor]: Taking taylor expansion of 0 in y
5.709 * [backup-simplify]: Simplify 0 into 0
5.709 * [backup-simplify]: Simplify 0 into 0
5.709 * [backup-simplify]: Simplify (+ (* 0.5 (* 1 (/ 1 (/ 1 x)))) (* 0.5 (* (/ 1 (/ 1 y)) 1))) into (+ (* 0.5 x) (* 0.5 y))
5.709 * [backup-simplify]: Simplify (+ (/ 1 (- x)) (/ (- (/ 1 (- y)) (/ 1 (- x))) 2.0)) into (- (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))))
5.709 * [approximate]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))) in (x y) around 0
5.709 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))) in y
5.709 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in y
5.709 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
5.709 * [taylor]: Taking taylor expansion of 0.5 in y
5.709 * [backup-simplify]: Simplify 0.5 into 0.5
5.710 * [taylor]: Taking taylor expansion of (/ 1 y) in y
5.710 * [taylor]: Taking taylor expansion of y in y
5.710 * [backup-simplify]: Simplify 0 into 0
5.710 * [backup-simplify]: Simplify 1 into 1
5.710 * [backup-simplify]: Simplify (/ 1 1) into 1
5.710 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y
5.710 * [taylor]: Taking taylor expansion of 0.5 in y
5.710 * [backup-simplify]: Simplify 0.5 into 0.5
5.710 * [taylor]: Taking taylor expansion of (/ 1 x) in y
5.710 * [taylor]: Taking taylor expansion of x in y
5.710 * [backup-simplify]: Simplify x into x
5.710 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
5.710 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))) in x
5.710 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in x
5.710 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
5.710 * [taylor]: Taking taylor expansion of 0.5 in x
5.710 * [backup-simplify]: Simplify 0.5 into 0.5
5.710 * [taylor]: Taking taylor expansion of (/ 1 y) in x
5.710 * [taylor]: Taking taylor expansion of y in x
5.711 * [backup-simplify]: Simplify y into y
5.711 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
5.711 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
5.711 * [taylor]: Taking taylor expansion of 0.5 in x
5.711 * [backup-simplify]: Simplify 0.5 into 0.5
5.711 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.711 * [taylor]: Taking taylor expansion of x in x
5.711 * [backup-simplify]: Simplify 0 into 0
5.711 * [backup-simplify]: Simplify 1 into 1
5.711 * [backup-simplify]: Simplify (/ 1 1) into 1
5.711 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))) in x
5.711 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in x
5.711 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
5.711 * [taylor]: Taking taylor expansion of 0.5 in x
5.711 * [backup-simplify]: Simplify 0.5 into 0.5
5.711 * [taylor]: Taking taylor expansion of (/ 1 y) in x
5.711 * [taylor]: Taking taylor expansion of y in x
5.711 * [backup-simplify]: Simplify y into y
5.711 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
5.712 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
5.712 * [taylor]: Taking taylor expansion of 0.5 in x
5.712 * [backup-simplify]: Simplify 0.5 into 0.5
5.712 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.712 * [taylor]: Taking taylor expansion of x in x
5.712 * [backup-simplify]: Simplify 0 into 0
5.712 * [backup-simplify]: Simplify 1 into 1
5.712 * [backup-simplify]: Simplify (/ 1 1) into 1
5.713 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
5.713 * [backup-simplify]: Simplify (+ 0 0.5) into 0.5
5.714 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
5.714 * [taylor]: Taking taylor expansion of (- 0.5) in y
5.714 * [taylor]: Taking taylor expansion of 0.5 in y
5.714 * [backup-simplify]: Simplify 0.5 into 0.5
5.714 * [backup-simplify]: Simplify (* 0.5 (/ 1 y)) into (/ 0.5 y)
5.715 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
5.715 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0
5.715 * [backup-simplify]: Simplify (+ (/ 0.5 y) 0) into (* 0.5 (/ 1 y))
5.715 * [backup-simplify]: Simplify (- (* 0.5 (/ 1 y))) into (- (* 0.5 (/ 1 y)))
5.715 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 y))) in y
5.716 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
5.716 * [taylor]: Taking taylor expansion of 0.5 in y
5.716 * [backup-simplify]: Simplify 0.5 into 0.5
5.716 * [taylor]: Taking taylor expansion of (/ 1 y) in y
5.716 * [taylor]: Taking taylor expansion of y in y
5.716 * [backup-simplify]: Simplify 0 into 0
5.716 * [backup-simplify]: Simplify 1 into 1
5.716 * [backup-simplify]: Simplify (/ 1 1) into 1
5.716 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
5.722 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
5.723 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
5.723 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
5.724 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
5.724 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
5.725 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 (/ 1 y))) into 0
5.726 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
5.727 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0
5.727 * [backup-simplify]: Simplify (+ 0 0) into 0
5.727 * [backup-simplify]: Simplify (- 0) into 0
5.728 * [taylor]: Taking taylor expansion of 0 in y
5.728 * [backup-simplify]: Simplify 0 into 0
5.728 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
5.729 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0
5.729 * [backup-simplify]: Simplify (- 0) into 0
5.729 * [backup-simplify]: Simplify 0 into 0
5.730 * [backup-simplify]: Simplify (- 0) into 0
5.730 * [backup-simplify]: Simplify 0 into 0
5.730 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
5.731 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 (/ 1 y)))) into 0
5.732 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
5.733 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
5.733 * [backup-simplify]: Simplify (+ 0 0) into 0
5.733 * [backup-simplify]: Simplify (- 0) into 0
5.733 * [taylor]: Taking taylor expansion of 0 in y
5.734 * [backup-simplify]: Simplify 0 into 0
5.734 * [backup-simplify]: Simplify 0 into 0
5.734 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
5.735 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0
5.735 * [backup-simplify]: Simplify (- 0) into 0
5.735 * [backup-simplify]: Simplify 0 into 0
5.736 * [backup-simplify]: Simplify (- 0) into 0
5.736 * [backup-simplify]: Simplify 0 into 0
5.736 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
5.737 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 y))))) into 0
5.738 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
5.739 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
5.740 * [backup-simplify]: Simplify (+ 0 0) into 0
5.740 * [backup-simplify]: Simplify (- 0) into 0
5.740 * [taylor]: Taking taylor expansion of 0 in y
5.740 * [backup-simplify]: Simplify 0 into 0
5.740 * [backup-simplify]: Simplify 0 into 0
5.741 * [backup-simplify]: Simplify (+ (* (- 0.5) (* 1 (/ 1 (/ 1 (- x))))) (* (- 0.5) (* (/ 1 (/ 1 (- y))) 1))) into (+ (* 0.5 x) (* 0.5 y))
5.741 * * * [progress]: simplifying candidates
5.742 * [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))
5.742 * * [simplify]: iteration 0: 33 enodes
5.756 * * [simplify]: iteration 1: 92 enodes
5.800 * * [simplify]: iteration 2: 246 enodes
5.955 * * [simplify]: iteration 3: 716 enodes
7.080 * * [simplify]: iteration 4: 3784 enodes
9.325 * * [simplify]: iteration complete: 5000 enodes
9.325 * * [simplify]: Extracting #0: cost 13 inf + 0
9.326 * * [simplify]: Extracting #1: cost 196 inf + 0
9.353 * * [simplify]: Extracting #2: cost 915 inf + 196
9.378 * * [simplify]: Extracting #3: cost 1241 inf + 15859
9.443 * * [simplify]: Extracting #4: cost 611 inf + 174168
9.548 * * [simplify]: Extracting #5: cost 140 inf + 304327
9.720 * * [simplify]: Extracting #6: cost 66 inf + 328238
9.906 * * [simplify]: Extracting #7: cost 17 inf + 333264
10.027 * * [simplify]: Extracting #8: cost 0 inf + 338932
10.156 * [simplify]: Simplified to:
  (exp (+ (/ (- y x) 2.0) x))
  (log (+ (/ (- y x) 2.0) x))
  (exp (+ (/ (- y x) 2.0) x))
  (* (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))
  (+ (* (/ (- y x) 2.0) (* (/ (- y x) 2.0) (/ (- y x) 2.0))) (* (* x x) x))
  (- (* (/ (- 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)
  (+ x (/ y 2.0))
  (* 0.5 (+ y x))
  (* 0.5 (+ y x))
  (* 0.5 (+ y x))
10.156 * * * [progress]: adding candidates to table
10.255 * * [progress]: iteration 2 / 4
10.255 * * * [progress]: picking best candidate
10.259 * * * * [pick]: Picked  #<alt (λ (x y) (* 0.5 (+ y x)))>
10.259 * * * [progress]: localizing error
10.273 * * * [progress]: generating rewritten candidates
10.273 * * * [progress]: generating series expansions
10.273 * * * [progress]: simplifying candidates
10.273 * [simplify]: Simplifying:
  
10.273 * * [simplify]: iteration 0: 0 enodes
10.273 * * [simplify]: iteration complete: 0 enodes
10.273 * * [simplify]: Extracting #0: cost 0 inf + 0
10.273 * [simplify]: Simplified to:
  
10.273 * * * [progress]: adding candidates to table
10.274 * [progress]: [Phase 3 of 3] Extracting.
10.280 * [simplify]: Simplifying:
  (* 0.5 (+ y x))
10.280 * * [simplify]: iteration 0: 5 enodes
10.281 * * [simplify]: iteration 1: 7 enodes
10.281 * * [simplify]: iteration complete: 7 enodes
10.281 * * [simplify]: Extracting #0: cost 1 inf + 0
10.281 * * [simplify]: Extracting #1: cost 3 inf + 0
10.281 * * [simplify]: Extracting #2: cost 4 inf + 1
10.281 * * [simplify]: Extracting #3: cost 2 inf + 3
10.281 * * [simplify]: Extracting #4: cost 0 inf + 128
10.282 * [simplify]: Simplified to:
  (* (+ x y) 0.5)
11.598 * [regime-testing]: Baseline error score: 0
11.615 * [regime-testing]: Oracle error score: 0
11.615 * [regime-testing]: End program error score: 0
11.784 * [regime-testing]: Target error score: 0