4.883 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.012 * * * [progress]: [2/2] Setting up program.
0.015 * [progress]: [Phase 2 of 3] Improving.
0.015 * [simplify]: Simplifying:
  (+ x (/ (- y x) 2.0))
0.015 * * [simplify]: iteration 0: 6 enodes
0.016 * * [simplify]: iteration 1: 12 enodes
0.018 * * [simplify]: iteration 2: 19 enodes
0.020 * * [simplify]: iteration 3: 28 enodes
0.024 * * [simplify]: iteration 4: 38 enodes
0.034 * * [simplify]: iteration 5: 54 enodes
0.048 * * [simplify]: iteration 6: 93 enodes
0.069 * * [simplify]: iteration 7: 143 enodes
0.099 * * [simplify]: iteration 8: 183 enodes
0.112 * * [simplify]: iteration 9: 235 enodes
0.131 * * [simplify]: iteration 10: 275 enodes
0.159 * * [simplify]: iteration 11: 327 enodes
0.182 * * [simplify]: iteration 12: 375 enodes
0.221 * * [simplify]: iteration 13: 459 enodes
0.256 * * [simplify]: iteration 14: 503 enodes
0.319 * * [simplify]: iteration 15: 570 enodes
0.376 * * [simplify]: iteration 16: 596 enodes
0.405 * * [simplify]: iteration 17: 633 enodes
0.433 * * [simplify]: iteration 18: 670 enodes
0.476 * * [simplify]: iteration 19: 718 enodes
0.522 * * [simplify]: iteration 20: 757 enodes
0.585 * * [simplify]: iteration 21: 804 enodes
0.635 * * [simplify]: iteration 22: 836 enodes
0.678 * * [simplify]: iteration 23: 881 enodes
0.725 * * [simplify]: iteration 24: 914 enodes
0.758 * * [simplify]: iteration 25: 961 enodes
0.790 * * [simplify]: iteration 26: 999 enodes
0.831 * * [simplify]: iteration 27: 1041 enodes
0.860 * * [simplify]: iteration 28: 1074 enodes
0.897 * * [simplify]: iteration 29: 1127 enodes
0.930 * * [simplify]: iteration 30: 1159 enodes
0.968 * * [simplify]: iteration 31: 1201 enodes
1.002 * * [simplify]: iteration 32: 1238 enodes
1.034 * * [simplify]: iteration 33: 1285 enodes
1.062 * * [simplify]: iteration 34: 1317 enodes
1.098 * * [simplify]: iteration 35: 1364 enodes
1.127 * * [simplify]: iteration 36: 1397 enodes
1.165 * * [simplify]: iteration 37: 1444 enodes
1.209 * * [simplify]: iteration 38: 1482 enodes
1.240 * * [simplify]: iteration 39: 1524 enodes
1.271 * * [simplify]: iteration 40: 1557 enodes
1.309 * * [simplify]: iteration 41: 1610 enodes
1.338 * * [simplify]: iteration 42: 1642 enodes
1.371 * * [simplify]: iteration 43: 1684 enodes
1.401 * * [simplify]: iteration 44: 1721 enodes
1.433 * * [simplify]: iteration 45: 1768 enodes
1.465 * * [simplify]: iteration 46: 1800 enodes
1.499 * * [simplify]: iteration 47: 1847 enodes
1.526 * * [simplify]: iteration 48: 1880 enodes
1.576 * * [simplify]: iteration 49: 1927 enodes
1.611 * * [simplify]: iteration 50: 1965 enodes
1.643 * * [simplify]: iteration 51: 2007 enodes
1.672 * * [simplify]: iteration 52: 2040 enodes
1.709 * * [simplify]: iteration 53: 2093 enodes
1.736 * * [simplify]: iteration 54: 2125 enodes
1.770 * * [simplify]: iteration 55: 2167 enodes
1.799 * * [simplify]: iteration 56: 2204 enodes
1.831 * * [simplify]: iteration 57: 2251 enodes
1.872 * * [simplify]: iteration 58: 2283 enodes
1.919 * * [simplify]: iteration 59: 2330 enodes
1.948 * * [simplify]: iteration 60: 2363 enodes
1.980 * * [simplify]: iteration 61: 2410 enodes
2.011 * * [simplify]: iteration 62: 2452 enodes
2.042 * * [simplify]: iteration 63: 2494 enodes
2.073 * * [simplify]: iteration 64: 2527 enodes
2.109 * * [simplify]: iteration 65: 2580 enodes
2.137 * * [simplify]: iteration 66: 2612 enodes
2.173 * * [simplify]: iteration 67: 2654 enodes
2.212 * * [simplify]: iteration 68: 2691 enodes
2.259 * * [simplify]: iteration 69: 2738 enodes
2.287 * * [simplify]: iteration 70: 2770 enodes
2.321 * * [simplify]: iteration 71: 2819 enodes
2.349 * * [simplify]: iteration 72: 2852 enodes
2.391 * * [simplify]: iteration 73: 2899 enodes
2.427 * * [simplify]: iteration 74: 2937 enodes
2.459 * * [simplify]: iteration 75: 2979 enodes
2.498 * * [simplify]: iteration 76: 3012 enodes
2.537 * * [simplify]: iteration 77: 3065 enodes
2.574 * * [simplify]: iteration 78: 3097 enodes
2.608 * * [simplify]: iteration 79: 3139 enodes
2.653 * * [simplify]: iteration 80: 3178 enodes
2.684 * * [simplify]: iteration 81: 3225 enodes
2.719 * * [simplify]: iteration 82: 3257 enodes
2.764 * * [simplify]: iteration 83: 3304 enodes
2.799 * * [simplify]: iteration 84: 3337 enodes
2.834 * * [simplify]: iteration 85: 3384 enodes
2.873 * * [simplify]: iteration 86: 3426 enodes
2.920 * * [simplify]: iteration 87: 3468 enodes
2.954 * * [simplify]: iteration 88: 3501 enodes
3.020 * * [simplify]: iteration 89: 3554 enodes
3.056 * * [simplify]: iteration 90: 3586 enodes
3.096 * * [simplify]: iteration 91: 3628 enodes
3.129 * * [simplify]: iteration 92: 3665 enodes
3.164 * * [simplify]: iteration 93: 3712 enodes
3.218 * * [simplify]: iteration 94: 3744 enodes
3.256 * * [simplify]: iteration 95: 3789 enodes
3.289 * * [simplify]: iteration 96: 3822 enodes
3.333 * * [simplify]: iteration 97: 3869 enodes
3.384 * * [simplify]: iteration 98: 3911 enodes
3.439 * * [simplify]: iteration 99: 3953 enodes
3.484 * * [simplify]: iteration 100: 3986 enodes
3.522 * * [simplify]: iteration 101: 4039 enodes
3.551 * * [simplify]: iteration 102: 4071 enodes
3.584 * * [simplify]: iteration 103: 4113 enodes
3.613 * * [simplify]: iteration 104: 4150 enodes
3.644 * * [simplify]: iteration 105: 4197 enodes
3.674 * * [simplify]: iteration 106: 4229 enodes
3.706 * * [simplify]: iteration 107: 4278 enodes
3.735 * * [simplify]: iteration 108: 4311 enodes
3.767 * * [simplify]: iteration 109: 4358 enodes
3.796 * * [simplify]: iteration 110: 4396 enodes
3.828 * * [simplify]: iteration 111: 4438 enodes
3.857 * * [simplify]: iteration 112: 4471 enodes
3.893 * * [simplify]: iteration 113: 4524 enodes
3.920 * * [simplify]: iteration 114: 4556 enodes
3.954 * * [simplify]: iteration 115: 4598 enodes
3.983 * * [simplify]: iteration 116: 4637 enodes
4.015 * * [simplify]: iteration 117: 4684 enodes
4.043 * * [simplify]: iteration 118: 4716 enodes
4.078 * * [simplify]: iteration 119: 4765 enodes
4.117 * * [simplify]: iteration 120: 4798 enodes
4.168 * * [simplify]: iteration 121: 4845 enodes
4.201 * * [simplify]: iteration 122: 4883 enodes
4.233 * * [simplify]: iteration 123: 4925 enodes
4.263 * * [simplify]: iteration 124: 4958 enodes
4.281 * * [simplify]: iteration complete: 5000 enodes
4.281 * * [simplify]: Extracting #0: cost 1 inf + 0
4.281 * * [simplify]: Extracting #1: cost 18 inf + 0
4.282 * * [simplify]: Extracting #2: cost 26 inf + 1
4.282 * * [simplify]: Extracting #3: cost 24 inf + 536
4.282 * * [simplify]: Extracting #4: cost 3 inf + 2222
4.284 * * [simplify]: Extracting #5: cost 0 inf + 2631
4.285 * [simplify]: Simplified to:
  (+ (/ (- y x) 2.0) x)
4.285 * * [progress]: iteration 1 / 4
4.285 * * * [progress]: picking best candidate
4.288 * * * * [pick]: Picked  #<alt (λ (x y) (+ x (/ (- y x) 2.0)))>
4.289 * * * [progress]: localizing error
4.296 * * * [progress]: generating rewritten candidates
4.296 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
4.313 * * * [progress]: generating series expansions
4.313 * * * * [progress]: [ 1 / 1 ] generating series at (2)
4.313 * [backup-simplify]: Simplify (+ x (/ (- y x) 2.0)) into (+ (* 0.5 x) (* 0.5 y))
4.313 * [approximate]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in (x y) around 0
4.313 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in y
4.313 * [taylor]: Taking taylor expansion of (* 0.5 x) in y
4.313 * [taylor]: Taking taylor expansion of 0.5 in y
4.313 * [backup-simplify]: Simplify 0.5 into 0.5
4.313 * [taylor]: Taking taylor expansion of x in y
4.313 * [backup-simplify]: Simplify x into x
4.313 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
4.313 * [taylor]: Taking taylor expansion of 0.5 in y
4.313 * [backup-simplify]: Simplify 0.5 into 0.5
4.313 * [taylor]: Taking taylor expansion of y in y
4.313 * [backup-simplify]: Simplify 0 into 0
4.313 * [backup-simplify]: Simplify 1 into 1
4.313 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in x
4.313 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
4.313 * [taylor]: Taking taylor expansion of 0.5 in x
4.313 * [backup-simplify]: Simplify 0.5 into 0.5
4.313 * [taylor]: Taking taylor expansion of x in x
4.313 * [backup-simplify]: Simplify 0 into 0
4.313 * [backup-simplify]: Simplify 1 into 1
4.313 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
4.313 * [taylor]: Taking taylor expansion of 0.5 in x
4.313 * [backup-simplify]: Simplify 0.5 into 0.5
4.313 * [taylor]: Taking taylor expansion of y in x
4.313 * [backup-simplify]: Simplify y into y
4.313 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in x
4.313 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
4.313 * [taylor]: Taking taylor expansion of 0.5 in x
4.314 * [backup-simplify]: Simplify 0.5 into 0.5
4.314 * [taylor]: Taking taylor expansion of x in x
4.314 * [backup-simplify]: Simplify 0 into 0
4.314 * [backup-simplify]: Simplify 1 into 1
4.314 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
4.314 * [taylor]: Taking taylor expansion of 0.5 in x
4.314 * [backup-simplify]: Simplify 0.5 into 0.5
4.314 * [taylor]: Taking taylor expansion of y in x
4.314 * [backup-simplify]: Simplify y into y
4.314 * [backup-simplify]: Simplify (* 0.5 0) into 0
4.314 * [backup-simplify]: Simplify (* 0.5 y) into (* 0.5 y)
4.314 * [backup-simplify]: Simplify (+ 0 (* 0.5 y)) into (* 0.5 y)
4.314 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
4.314 * [taylor]: Taking taylor expansion of 0.5 in y
4.314 * [backup-simplify]: Simplify 0.5 into 0.5
4.314 * [taylor]: Taking taylor expansion of y in y
4.314 * [backup-simplify]: Simplify 0 into 0
4.314 * [backup-simplify]: Simplify 1 into 1
4.315 * [backup-simplify]: Simplify (* 0.5 0) into 0
4.315 * [backup-simplify]: Simplify 0 into 0
4.316 * [backup-simplify]: Simplify (+ (* 0.5 1) (* 0 0)) into 0.5
4.316 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 y)) into 0
4.316 * [backup-simplify]: Simplify (+ 0.5 0) into 0.5
4.316 * [taylor]: Taking taylor expansion of 0.5 in y
4.316 * [backup-simplify]: Simplify 0.5 into 0.5
4.316 * [backup-simplify]: Simplify 0.5 into 0.5
4.317 * [backup-simplify]: Simplify (+ (* 0.5 1) (* 0 0)) into 0.5
4.317 * [backup-simplify]: Simplify 0.5 into 0.5
4.318 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 1) (* 0 0))) into 0
4.318 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 y))) into 0
4.319 * [backup-simplify]: Simplify (+ 0 0) into 0
4.319 * [taylor]: Taking taylor expansion of 0 in y
4.319 * [backup-simplify]: Simplify 0 into 0
4.319 * [backup-simplify]: Simplify 0 into 0
4.319 * [backup-simplify]: Simplify 0 into 0
4.319 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 1) (* 0 0))) into 0
4.319 * [backup-simplify]: Simplify 0 into 0
4.320 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
4.321 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 y)))) into 0
4.321 * [backup-simplify]: Simplify (+ 0 0) into 0
4.321 * [taylor]: Taking taylor expansion of 0 in y
4.321 * [backup-simplify]: Simplify 0 into 0
4.321 * [backup-simplify]: Simplify 0 into 0
4.321 * [backup-simplify]: Simplify 0 into 0
4.322 * [backup-simplify]: Simplify 0 into 0
4.322 * [backup-simplify]: Simplify (+ (* 0.5 (* y 1)) (* 0.5 (* 1 x))) into (+ (* 0.5 x) (* 0.5 y))
4.322 * [backup-simplify]: Simplify (+ (/ 1 x) (/ (- (/ 1 y) (/ 1 x)) 2.0)) into (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y)))
4.322 * [approximate]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y))) in (x y) around 0
4.322 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y))) in y
4.322 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y
4.322 * [taylor]: Taking taylor expansion of 0.5 in y
4.322 * [backup-simplify]: Simplify 0.5 into 0.5
4.322 * [taylor]: Taking taylor expansion of (/ 1 x) in y
4.322 * [taylor]: Taking taylor expansion of x in y
4.322 * [backup-simplify]: Simplify x into x
4.322 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
4.322 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
4.322 * [taylor]: Taking taylor expansion of 0.5 in y
4.322 * [backup-simplify]: Simplify 0.5 into 0.5
4.322 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.322 * [taylor]: Taking taylor expansion of y in y
4.322 * [backup-simplify]: Simplify 0 into 0
4.322 * [backup-simplify]: Simplify 1 into 1
4.322 * [backup-simplify]: Simplify (/ 1 1) into 1
4.322 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y))) in x
4.322 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
4.322 * [taylor]: Taking taylor expansion of 0.5 in x
4.322 * [backup-simplify]: Simplify 0.5 into 0.5
4.322 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.322 * [taylor]: Taking taylor expansion of x in x
4.322 * [backup-simplify]: Simplify 0 into 0
4.322 * [backup-simplify]: Simplify 1 into 1
4.323 * [backup-simplify]: Simplify (/ 1 1) into 1
4.323 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
4.323 * [taylor]: Taking taylor expansion of 0.5 in x
4.323 * [backup-simplify]: Simplify 0.5 into 0.5
4.323 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.323 * [taylor]: Taking taylor expansion of y in x
4.323 * [backup-simplify]: Simplify y into y
4.323 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.323 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y))) in x
4.323 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
4.323 * [taylor]: Taking taylor expansion of 0.5 in x
4.323 * [backup-simplify]: Simplify 0.5 into 0.5
4.323 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.323 * [taylor]: Taking taylor expansion of x in x
4.323 * [backup-simplify]: Simplify 0 into 0
4.323 * [backup-simplify]: Simplify 1 into 1
4.323 * [backup-simplify]: Simplify (/ 1 1) into 1
4.323 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
4.323 * [taylor]: Taking taylor expansion of 0.5 in x
4.323 * [backup-simplify]: Simplify 0.5 into 0.5
4.323 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.323 * [taylor]: Taking taylor expansion of y in x
4.323 * [backup-simplify]: Simplify y into y
4.323 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.324 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
4.324 * [backup-simplify]: Simplify (+ 0.5 0) into 0.5
4.324 * [taylor]: Taking taylor expansion of 0.5 in y
4.324 * [backup-simplify]: Simplify 0.5 into 0.5
4.325 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.325 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0
4.325 * [backup-simplify]: Simplify (* 0.5 (/ 1 y)) into (/ 0.5 y)
4.325 * [backup-simplify]: Simplify (+ 0 (/ 0.5 y)) into (* 0.5 (/ 1 y))
4.325 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
4.325 * [taylor]: Taking taylor expansion of 0.5 in y
4.325 * [backup-simplify]: Simplify 0.5 into 0.5
4.325 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.325 * [taylor]: Taking taylor expansion of y in y
4.325 * [backup-simplify]: Simplify 0 into 0
4.325 * [backup-simplify]: Simplify 1 into 1
4.326 * [backup-simplify]: Simplify (/ 1 1) into 1
4.326 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
4.326 * [backup-simplify]: Simplify 0.5 into 0.5
4.326 * [backup-simplify]: Simplify 0.5 into 0.5
4.326 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.327 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0
4.327 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
4.328 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 (/ 1 y))) into 0
4.328 * [backup-simplify]: Simplify (+ 0 0) into 0
4.328 * [taylor]: Taking taylor expansion of 0 in y
4.328 * [backup-simplify]: Simplify 0 into 0
4.328 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.329 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0
4.329 * [backup-simplify]: Simplify 0 into 0
4.329 * [backup-simplify]: Simplify 0 into 0
4.329 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.333 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
4.333 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.334 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 (/ 1 y)))) into 0
4.334 * [backup-simplify]: Simplify (+ 0 0) into 0
4.334 * [taylor]: Taking taylor expansion of 0 in y
4.334 * [backup-simplify]: Simplify 0 into 0
4.334 * [backup-simplify]: Simplify 0 into 0
4.335 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.335 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0
4.335 * [backup-simplify]: Simplify 0 into 0
4.335 * [backup-simplify]: Simplify 0 into 0
4.336 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.337 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
4.337 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.338 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 y))))) into 0
4.338 * [backup-simplify]: Simplify (+ 0 0) into 0
4.338 * [taylor]: Taking taylor expansion of 0 in y
4.338 * [backup-simplify]: Simplify 0 into 0
4.338 * [backup-simplify]: Simplify 0 into 0
4.338 * [backup-simplify]: Simplify (+ (* 0.5 (* 1 (/ 1 (/ 1 x)))) (* 0.5 (* (/ 1 (/ 1 y)) 1))) into (+ (* 0.5 x) (* 0.5 y))
4.338 * [backup-simplify]: Simplify (+ (/ 1 (- x)) (/ (- (/ 1 (- y)) (/ 1 (- x))) 2.0)) into (- (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y))))
4.338 * [approximate]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y)))) in (x y) around 0
4.338 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y)))) in y
4.338 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y))) in y
4.338 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y
4.338 * [taylor]: Taking taylor expansion of 0.5 in y
4.338 * [backup-simplify]: Simplify 0.5 into 0.5
4.338 * [taylor]: Taking taylor expansion of (/ 1 x) in y
4.338 * [taylor]: Taking taylor expansion of x in y
4.338 * [backup-simplify]: Simplify x into x
4.338 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
4.338 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
4.338 * [taylor]: Taking taylor expansion of 0.5 in y
4.338 * [backup-simplify]: Simplify 0.5 into 0.5
4.338 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.338 * [taylor]: Taking taylor expansion of y in y
4.338 * [backup-simplify]: Simplify 0 into 0
4.338 * [backup-simplify]: Simplify 1 into 1
4.339 * [backup-simplify]: Simplify (/ 1 1) into 1
4.339 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y)))) in x
4.339 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y))) in x
4.339 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
4.339 * [taylor]: Taking taylor expansion of 0.5 in x
4.339 * [backup-simplify]: Simplify 0.5 into 0.5
4.339 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.339 * [taylor]: Taking taylor expansion of x in x
4.339 * [backup-simplify]: Simplify 0 into 0
4.339 * [backup-simplify]: Simplify 1 into 1
4.339 * [backup-simplify]: Simplify (/ 1 1) into 1
4.339 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
4.339 * [taylor]: Taking taylor expansion of 0.5 in x
4.339 * [backup-simplify]: Simplify 0.5 into 0.5
4.339 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.339 * [taylor]: Taking taylor expansion of y in x
4.339 * [backup-simplify]: Simplify y into y
4.339 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.339 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y)))) in x
4.339 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y))) in x
4.339 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
4.339 * [taylor]: Taking taylor expansion of 0.5 in x
4.339 * [backup-simplify]: Simplify 0.5 into 0.5
4.339 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.339 * [taylor]: Taking taylor expansion of x in x
4.339 * [backup-simplify]: Simplify 0 into 0
4.339 * [backup-simplify]: Simplify 1 into 1
4.340 * [backup-simplify]: Simplify (/ 1 1) into 1
4.340 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
4.340 * [taylor]: Taking taylor expansion of 0.5 in x
4.340 * [backup-simplify]: Simplify 0.5 into 0.5
4.340 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.340 * [taylor]: Taking taylor expansion of y in x
4.340 * [backup-simplify]: Simplify y into y
4.340 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.340 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
4.341 * [backup-simplify]: Simplify (+ 0.5 0) into 0.5
4.341 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
4.341 * [taylor]: Taking taylor expansion of (- 0.5) in y
4.341 * [taylor]: Taking taylor expansion of 0.5 in y
4.341 * [backup-simplify]: Simplify 0.5 into 0.5
4.341 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.342 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0
4.342 * [backup-simplify]: Simplify (* 0.5 (/ 1 y)) into (/ 0.5 y)
4.342 * [backup-simplify]: Simplify (+ 0 (/ 0.5 y)) into (* 0.5 (/ 1 y))
4.342 * [backup-simplify]: Simplify (- (* 0.5 (/ 1 y))) into (- (* 0.5 (/ 1 y)))
4.342 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 y))) in y
4.342 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
4.342 * [taylor]: Taking taylor expansion of 0.5 in y
4.342 * [backup-simplify]: Simplify 0.5 into 0.5
4.342 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.342 * [taylor]: Taking taylor expansion of y in y
4.342 * [backup-simplify]: Simplify 0 into 0
4.342 * [backup-simplify]: Simplify 1 into 1
4.342 * [backup-simplify]: Simplify (/ 1 1) into 1
4.343 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
4.343 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
4.343 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
4.343 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
4.344 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
4.344 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.345 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0
4.345 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
4.346 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 (/ 1 y))) into 0
4.346 * [backup-simplify]: Simplify (+ 0 0) into 0
4.347 * [backup-simplify]: Simplify (- 0) into 0
4.347 * [taylor]: Taking taylor expansion of 0 in y
4.347 * [backup-simplify]: Simplify 0 into 0
4.347 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.348 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0
4.348 * [backup-simplify]: Simplify (- 0) into 0
4.348 * [backup-simplify]: Simplify 0 into 0
4.349 * [backup-simplify]: Simplify (- 0) into 0
4.349 * [backup-simplify]: Simplify 0 into 0
4.349 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.350 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
4.350 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.351 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 (/ 1 y)))) into 0
4.351 * [backup-simplify]: Simplify (+ 0 0) into 0
4.351 * [backup-simplify]: Simplify (- 0) into 0
4.351 * [taylor]: Taking taylor expansion of 0 in y
4.352 * [backup-simplify]: Simplify 0 into 0
4.352 * [backup-simplify]: Simplify 0 into 0
4.352 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.353 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0
4.353 * [backup-simplify]: Simplify (- 0) into 0
4.353 * [backup-simplify]: Simplify 0 into 0
4.353 * [backup-simplify]: Simplify (- 0) into 0
4.353 * [backup-simplify]: Simplify 0 into 0
4.354 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.354 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
4.355 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.355 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 y))))) into 0
4.356 * [backup-simplify]: Simplify (+ 0 0) into 0
4.356 * [backup-simplify]: Simplify (- 0) into 0
4.356 * [taylor]: Taking taylor expansion of 0 in y
4.356 * [backup-simplify]: Simplify 0 into 0
4.356 * [backup-simplify]: Simplify 0 into 0
4.356 * [backup-simplify]: Simplify (+ (* (- 0.5) (* 1 (/ 1 (/ 1 (- x))))) (* (- 0.5) (* (/ 1 (/ 1 (- y))) 1))) into (+ (* 0.5 x) (* 0.5 y))
4.357 * * * [progress]: simplifying candidates
4.357 * [simplify]: Simplifying:
  (expm1 (+ x (/ (- y x) 2.0)))
  (log1p (+ x (/ (- y x) 2.0)))
  (* (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))
4.357 * * [simplify]: iteration 0: 35 enodes
4.364 * * [simplify]: iteration 1: 98 enodes
4.388 * * [simplify]: iteration 2: 269 enodes
4.470 * * [simplify]: iteration 3: 813 enodes
5.457 * * [simplify]: iteration 4: 4105 enodes
6.515 * * [simplify]: iteration complete: 5000 enodes
6.515 * * [simplify]: Extracting #0: cost 15 inf + 0
6.516 * * [simplify]: Extracting #1: cost 214 inf + 0
6.520 * * [simplify]: Extracting #2: cost 912 inf + 716
6.530 * * [simplify]: Extracting #3: cost 1041 inf + 16464
6.580 * * [simplify]: Extracting #4: cost 394 inf + 146074
6.674 * * [simplify]: Extracting #5: cost 16 inf + 240812
6.776 * * [simplify]: Extracting #6: cost 0 inf + 243010
6.879 * * [simplify]: Extracting #7: cost 0 inf + 242850
6.981 * [simplify]: Simplified to:
  (expm1 (+ (/ (- y x) 2.0) x))
  (log1p (+ (/ (- y x) 2.0) x))
  (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))
  (fma (* x x) x (* (* (/ (- y x) 2.0) (/ (- y x) 2.0)) (/ (- y x) 2.0)))
  (fma (- (/ (- y x) 2.0) x) (/ (- y x) 2.0) (* x x))
  (* (+ (/ (- y x) 2.0) x) (- x (/ (- y x) 2.0)))
  (- x (/ (- y x) 2.0))
  (+ (/ (- y x) 2.0) x)
  (+ (/ y 2.0) x)
  (* 0.5 (+ y x))
  (* 0.5 (+ y x))
  (* 0.5 (+ y x))
6.982 * * * [progress]: adding candidates to table
7.079 * * [progress]: iteration 2 / 4
7.079 * * * [progress]: picking best candidate
7.083 * * * * [pick]: Picked  #<alt (λ (x y) (* 0.5 (+ y x)))>
7.083 * * * [progress]: localizing error
7.091 * * * [progress]: generating rewritten candidates
7.091 * * * [progress]: generating series expansions
7.091 * * * [progress]: simplifying candidates
7.091 * [simplify]: Simplifying:
  
7.091 * * [simplify]: iteration 0: 0 enodes
7.091 * * [simplify]: iteration complete: 0 enodes
7.091 * * [simplify]: Extracting #0: cost 0 inf + 0
7.091 * [simplify]: Simplified to:
  
7.091 * * * [progress]: adding candidates to table
7.092 * [progress]: [Phase 3 of 3] Extracting.
7.096 * [simplify]: Simplifying:
  (* 0.5 (+ y x))
7.096 * * [simplify]: iteration 0: 5 enodes
7.097 * * [simplify]: iteration 1: 7 enodes
7.097 * * [simplify]: iteration complete: 7 enodes
7.097 * * [simplify]: Extracting #0: cost 1 inf + 0
7.097 * * [simplify]: Extracting #1: cost 3 inf + 0
7.097 * * [simplify]: Extracting #2: cost 4 inf + 1
7.097 * * [simplify]: Extracting #3: cost 0 inf + 128
7.097 * [simplify]: Simplified to:
  (* (+ y x) 0.5)
7.870 * [regime-testing]: Baseline error score: 0
7.884 * [regime-testing]: Oracle error score: 0
7.885 * [regime-testing]: End program error score: 0
8.021 * [regime-testing]: Target error score: 0