13.142 * [progress]: [Phase 1 of 3] Setting up.
0.002 * * * [progress]: [1/2] Preparing points
0.029 * * * [progress]: [2/2] Setting up program.
0.032 * [progress]: [Phase 2 of 3] Improving.
0.032 * * * * [progress]: [ 1 / 1 ] simplifiying candidate #<alt (λ (x y) (+ x (/ (- y x) 2.0)))>
0.032 * [simplify]: Simplifying:
  (+ x (/ (- y x) 2.0))
0.032 * * [simplify]: iteration 0: 6 enodes
0.034 * * [simplify]: iteration 1: 12 enodes
0.036 * * [simplify]: iteration 2: 19 enodes
0.041 * * [simplify]: iteration 3: 28 enodes
0.046 * * [simplify]: iteration 4: 38 enodes
0.054 * * [simplify]: iteration 5: 54 enodes
0.063 * * [simplify]: iteration 6: 93 enodes
0.077 * * [simplify]: iteration 7: 143 enodes
0.093 * * [simplify]: iteration 8: 183 enodes
0.115 * * [simplify]: iteration 9: 235 enodes
0.135 * * [simplify]: iteration 10: 275 enodes
0.151 * * [simplify]: iteration 11: 327 enodes
0.173 * * [simplify]: iteration 12: 375 enodes
0.213 * * [simplify]: iteration 13: 459 enodes
0.254 * * [simplify]: iteration 14: 503 enodes
0.294 * * [simplify]: iteration 15: 570 enodes
0.323 * * [simplify]: iteration 16: 596 enodes
0.350 * * [simplify]: iteration 17: 633 enodes
0.376 * * [simplify]: iteration 18: 670 enodes
0.410 * * [simplify]: iteration 19: 718 enodes
0.440 * * [simplify]: iteration 20: 757 enodes
0.473 * * [simplify]: iteration 21: 804 enodes
0.507 * * [simplify]: iteration 22: 836 enodes
0.554 * * [simplify]: iteration 23: 881 enodes
0.580 * * [simplify]: iteration 24: 914 enodes
0.612 * * [simplify]: iteration 25: 961 enodes
0.651 * * [simplify]: iteration 26: 999 enodes
0.691 * * [simplify]: iteration 27: 1041 enodes
0.721 * * [simplify]: iteration 28: 1074 enodes
0.756 * * [simplify]: iteration 29: 1127 enodes
0.788 * * [simplify]: iteration 30: 1159 enodes
0.825 * * [simplify]: iteration 31: 1201 enodes
0.857 * * [simplify]: iteration 32: 1238 enodes
0.903 * * [simplify]: iteration 33: 1285 enodes
0.948 * * [simplify]: iteration 34: 1317 enodes
1.004 * * [simplify]: iteration 35: 1364 enodes
1.050 * * [simplify]: iteration 36: 1397 enodes
1.095 * * [simplify]: iteration 37: 1444 enodes
1.124 * * [simplify]: iteration 38: 1482 enodes
1.161 * * [simplify]: iteration 39: 1524 enodes
1.191 * * [simplify]: iteration 40: 1557 enodes
1.229 * * [simplify]: iteration 41: 1610 enodes
1.257 * * [simplify]: iteration 42: 1642 enodes
1.291 * * [simplify]: iteration 43: 1684 enodes
1.320 * * [simplify]: iteration 44: 1721 enodes
1.357 * * [simplify]: iteration 45: 1768 enodes
1.384 * * [simplify]: iteration 46: 1800 enodes
1.418 * * [simplify]: iteration 47: 1847 enodes
1.445 * * [simplify]: iteration 48: 1880 enodes
1.481 * * [simplify]: iteration 49: 1927 enodes
1.509 * * [simplify]: iteration 50: 1965 enodes
1.528 * * [simplify]: iteration complete: 2000 enodes
1.528 * * [simplify]: Extracting #0: cost 1 inf + 0
1.529 * * [simplify]: Extracting #1: cost 18 inf + 0
1.529 * * [simplify]: Extracting #2: cost 26 inf + 1
1.529 * * [simplify]: Extracting #3: cost 18 inf + 1232
1.530 * * [simplify]: Extracting #4: cost 1 inf + 2549
1.531 * * [simplify]: Extracting #5: cost 0 inf + 2631
1.532 * [simplify]: Simplified to:
  (+ (/ (- y x) 2.0) x)
1.533 * * [progress]: iteration 1 / 4
1.533 * * * [progress]: picking best candidate
1.535 * * * * [pick]: Picked  #<alt (λ (x y) (+ x (/ (- y x) 2.0)))>
1.535 * * * [progress]: localizing error
1.544 * * * [progress]: generating rewritten candidates
1.544 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
1.556 * * * [progress]: generating series expansions
1.556 * * * * [progress]: [ 1 / 1 ] generating series at (2)
1.556 * [backup-simplify]: Simplify (+ x (/ (- y x) 2.0)) into (+ (* 0.5 x) (* 0.5 y))
1.557 * [approximate]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in (x y) around 0
1.557 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in y
1.557 * [taylor]: Taking taylor expansion of (* 0.5 x) in y
1.557 * [taylor]: Taking taylor expansion of 0.5 in y
1.557 * [backup-simplify]: Simplify 0.5 into 0.5
1.557 * [taylor]: Taking taylor expansion of x in y
1.557 * [backup-simplify]: Simplify x into x
1.557 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
1.557 * [taylor]: Taking taylor expansion of 0.5 in y
1.557 * [backup-simplify]: Simplify 0.5 into 0.5
1.557 * [taylor]: Taking taylor expansion of y in y
1.557 * [backup-simplify]: Simplify 0 into 0
1.557 * [backup-simplify]: Simplify 1 into 1
1.557 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in x
1.557 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
1.557 * [taylor]: Taking taylor expansion of 0.5 in x
1.557 * [backup-simplify]: Simplify 0.5 into 0.5
1.557 * [taylor]: Taking taylor expansion of x in x
1.557 * [backup-simplify]: Simplify 0 into 0
1.557 * [backup-simplify]: Simplify 1 into 1
1.557 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
1.557 * [taylor]: Taking taylor expansion of 0.5 in x
1.557 * [backup-simplify]: Simplify 0.5 into 0.5
1.557 * [taylor]: Taking taylor expansion of y in x
1.557 * [backup-simplify]: Simplify y into y
1.557 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in x
1.557 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
1.557 * [taylor]: Taking taylor expansion of 0.5 in x
1.557 * [backup-simplify]: Simplify 0.5 into 0.5
1.557 * [taylor]: Taking taylor expansion of x in x
1.557 * [backup-simplify]: Simplify 0 into 0
1.557 * [backup-simplify]: Simplify 1 into 1
1.557 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
1.557 * [taylor]: Taking taylor expansion of 0.5 in x
1.557 * [backup-simplify]: Simplify 0.5 into 0.5
1.557 * [taylor]: Taking taylor expansion of y in x
1.557 * [backup-simplify]: Simplify y into y
1.558 * [backup-simplify]: Simplify (* 0.5 0) into 0
1.558 * [backup-simplify]: Simplify (* 0.5 y) into (* 0.5 y)
1.558 * [backup-simplify]: Simplify (+ 0 (* 0.5 y)) into (* 0.5 y)
1.558 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
1.558 * [taylor]: Taking taylor expansion of 0.5 in y
1.558 * [backup-simplify]: Simplify 0.5 into 0.5
1.558 * [taylor]: Taking taylor expansion of y in y
1.558 * [backup-simplify]: Simplify 0 into 0
1.558 * [backup-simplify]: Simplify 1 into 1
1.558 * [backup-simplify]: Simplify (* 0.5 0) into 0
1.558 * [backup-simplify]: Simplify 0 into 0
1.559 * [backup-simplify]: Simplify (+ (* 0.5 1) (* 0 0)) into 0.5
1.560 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 y)) into 0
1.560 * [backup-simplify]: Simplify (+ 0.5 0) into 0.5
1.560 * [taylor]: Taking taylor expansion of 0.5 in y
1.560 * [backup-simplify]: Simplify 0.5 into 0.5
1.560 * [backup-simplify]: Simplify 0.5 into 0.5
1.561 * [backup-simplify]: Simplify (+ (* 0.5 1) (* 0 0)) into 0.5
1.561 * [backup-simplify]: Simplify 0.5 into 0.5
1.561 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 1) (* 0 0))) into 0
1.562 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 y))) into 0
1.562 * [backup-simplify]: Simplify (+ 0 0) into 0
1.562 * [taylor]: Taking taylor expansion of 0 in y
1.562 * [backup-simplify]: Simplify 0 into 0
1.562 * [backup-simplify]: Simplify 0 into 0
1.562 * [backup-simplify]: Simplify 0 into 0
1.563 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 1) (* 0 0))) into 0
1.563 * [backup-simplify]: Simplify 0 into 0
1.563 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
1.564 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 y)))) into 0
1.564 * [backup-simplify]: Simplify (+ 0 0) into 0
1.564 * [taylor]: Taking taylor expansion of 0 in y
1.564 * [backup-simplify]: Simplify 0 into 0
1.565 * [backup-simplify]: Simplify 0 into 0
1.565 * [backup-simplify]: Simplify 0 into 0
1.565 * [backup-simplify]: Simplify 0 into 0
1.565 * [backup-simplify]: Simplify (+ (* 0.5 (* y 1)) (* 0.5 (* 1 x))) into (+ (* 0.5 x) (* 0.5 y))
1.565 * [backup-simplify]: Simplify (+ (/ 1 x) (/ (- (/ 1 y) (/ 1 x)) 2.0)) into (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y)))
1.565 * [approximate]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y))) in (x y) around 0
1.565 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y))) in y
1.565 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y
1.565 * [taylor]: Taking taylor expansion of 0.5 in y
1.565 * [backup-simplify]: Simplify 0.5 into 0.5
1.565 * [taylor]: Taking taylor expansion of (/ 1 x) in y
1.565 * [taylor]: Taking taylor expansion of x in y
1.565 * [backup-simplify]: Simplify x into x
1.565 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
1.565 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
1.565 * [taylor]: Taking taylor expansion of 0.5 in y
1.565 * [backup-simplify]: Simplify 0.5 into 0.5
1.565 * [taylor]: Taking taylor expansion of (/ 1 y) in y
1.565 * [taylor]: Taking taylor expansion of y in y
1.565 * [backup-simplify]: Simplify 0 into 0
1.565 * [backup-simplify]: Simplify 1 into 1
1.565 * [backup-simplify]: Simplify (/ 1 1) into 1
1.565 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y))) in x
1.565 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
1.565 * [taylor]: Taking taylor expansion of 0.5 in x
1.565 * [backup-simplify]: Simplify 0.5 into 0.5
1.565 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.565 * [taylor]: Taking taylor expansion of x in x
1.565 * [backup-simplify]: Simplify 0 into 0
1.565 * [backup-simplify]: Simplify 1 into 1
1.566 * [backup-simplify]: Simplify (/ 1 1) into 1
1.566 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
1.566 * [taylor]: Taking taylor expansion of 0.5 in x
1.566 * [backup-simplify]: Simplify 0.5 into 0.5
1.566 * [taylor]: Taking taylor expansion of (/ 1 y) in x
1.566 * [taylor]: Taking taylor expansion of y in x
1.566 * [backup-simplify]: Simplify y into y
1.566 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
1.566 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y))) in x
1.566 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
1.566 * [taylor]: Taking taylor expansion of 0.5 in x
1.566 * [backup-simplify]: Simplify 0.5 into 0.5
1.566 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.566 * [taylor]: Taking taylor expansion of x in x
1.566 * [backup-simplify]: Simplify 0 into 0
1.566 * [backup-simplify]: Simplify 1 into 1
1.566 * [backup-simplify]: Simplify (/ 1 1) into 1
1.566 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
1.566 * [taylor]: Taking taylor expansion of 0.5 in x
1.566 * [backup-simplify]: Simplify 0.5 into 0.5
1.566 * [taylor]: Taking taylor expansion of (/ 1 y) in x
1.566 * [taylor]: Taking taylor expansion of y in x
1.566 * [backup-simplify]: Simplify y into y
1.566 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
1.567 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
1.567 * [backup-simplify]: Simplify (+ 0.5 0) into 0.5
1.567 * [taylor]: Taking taylor expansion of 0.5 in y
1.567 * [backup-simplify]: Simplify 0.5 into 0.5
1.567 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
1.568 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0
1.568 * [backup-simplify]: Simplify (* 0.5 (/ 1 y)) into (/ 0.5 y)
1.568 * [backup-simplify]: Simplify (+ 0 (/ 0.5 y)) into (* 0.5 (/ 1 y))
1.568 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
1.568 * [taylor]: Taking taylor expansion of 0.5 in y
1.568 * [backup-simplify]: Simplify 0.5 into 0.5
1.568 * [taylor]: Taking taylor expansion of (/ 1 y) in y
1.568 * [taylor]: Taking taylor expansion of y in y
1.568 * [backup-simplify]: Simplify 0 into 0
1.568 * [backup-simplify]: Simplify 1 into 1
1.568 * [backup-simplify]: Simplify (/ 1 1) into 1
1.569 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
1.569 * [backup-simplify]: Simplify 0.5 into 0.5
1.569 * [backup-simplify]: Simplify 0.5 into 0.5
1.569 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
1.570 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0
1.570 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
1.570 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 (/ 1 y))) into 0
1.570 * [backup-simplify]: Simplify (+ 0 0) into 0
1.570 * [taylor]: Taking taylor expansion of 0 in y
1.570 * [backup-simplify]: Simplify 0 into 0
1.571 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
1.571 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0
1.571 * [backup-simplify]: Simplify 0 into 0
1.571 * [backup-simplify]: Simplify 0 into 0
1.572 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
1.573 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
1.573 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
1.573 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 (/ 1 y)))) into 0
1.573 * [backup-simplify]: Simplify (+ 0 0) into 0
1.573 * [taylor]: Taking taylor expansion of 0 in y
1.573 * [backup-simplify]: Simplify 0 into 0
1.574 * [backup-simplify]: Simplify 0 into 0
1.574 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
1.575 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0
1.575 * [backup-simplify]: Simplify 0 into 0
1.575 * [backup-simplify]: Simplify 0 into 0
1.575 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
1.576 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
1.576 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
1.577 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 y))))) into 0
1.577 * [backup-simplify]: Simplify (+ 0 0) into 0
1.577 * [taylor]: Taking taylor expansion of 0 in y
1.577 * [backup-simplify]: Simplify 0 into 0
1.577 * [backup-simplify]: Simplify 0 into 0
1.577 * [backup-simplify]: Simplify (+ (* 0.5 (* 1 (/ 1 (/ 1 x)))) (* 0.5 (* (/ 1 (/ 1 y)) 1))) into (+ (* 0.5 x) (* 0.5 y))
1.577 * [backup-simplify]: Simplify (+ (/ 1 (- x)) (/ (- (/ 1 (- y)) (/ 1 (- x))) 2.0)) into (- (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y))))
1.577 * [approximate]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y)))) in (x y) around 0
1.577 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y)))) in y
1.577 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y))) in y
1.577 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y
1.577 * [taylor]: Taking taylor expansion of 0.5 in y
1.578 * [backup-simplify]: Simplify 0.5 into 0.5
1.578 * [taylor]: Taking taylor expansion of (/ 1 x) in y
1.578 * [taylor]: Taking taylor expansion of x in y
1.578 * [backup-simplify]: Simplify x into x
1.578 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
1.578 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
1.578 * [taylor]: Taking taylor expansion of 0.5 in y
1.578 * [backup-simplify]: Simplify 0.5 into 0.5
1.578 * [taylor]: Taking taylor expansion of (/ 1 y) in y
1.578 * [taylor]: Taking taylor expansion of y in y
1.578 * [backup-simplify]: Simplify 0 into 0
1.578 * [backup-simplify]: Simplify 1 into 1
1.578 * [backup-simplify]: Simplify (/ 1 1) into 1
1.578 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y)))) in x
1.578 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y))) in x
1.578 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
1.578 * [taylor]: Taking taylor expansion of 0.5 in x
1.578 * [backup-simplify]: Simplify 0.5 into 0.5
1.578 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.578 * [taylor]: Taking taylor expansion of x in x
1.578 * [backup-simplify]: Simplify 0 into 0
1.578 * [backup-simplify]: Simplify 1 into 1
1.578 * [backup-simplify]: Simplify (/ 1 1) into 1
1.578 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
1.578 * [taylor]: Taking taylor expansion of 0.5 in x
1.578 * [backup-simplify]: Simplify 0.5 into 0.5
1.578 * [taylor]: Taking taylor expansion of (/ 1 y) in x
1.578 * [taylor]: Taking taylor expansion of y in x
1.578 * [backup-simplify]: Simplify y into y
1.578 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
1.578 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y)))) in x
1.578 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) (* 0.5 (/ 1 y))) in x
1.578 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
1.579 * [taylor]: Taking taylor expansion of 0.5 in x
1.579 * [backup-simplify]: Simplify 0.5 into 0.5
1.579 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.579 * [taylor]: Taking taylor expansion of x in x
1.579 * [backup-simplify]: Simplify 0 into 0
1.579 * [backup-simplify]: Simplify 1 into 1
1.579 * [backup-simplify]: Simplify (/ 1 1) into 1
1.579 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
1.579 * [taylor]: Taking taylor expansion of 0.5 in x
1.579 * [backup-simplify]: Simplify 0.5 into 0.5
1.579 * [taylor]: Taking taylor expansion of (/ 1 y) in x
1.579 * [taylor]: Taking taylor expansion of y in x
1.579 * [backup-simplify]: Simplify y into y
1.579 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
1.579 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
1.580 * [backup-simplify]: Simplify (+ 0.5 0) into 0.5
1.580 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
1.580 * [taylor]: Taking taylor expansion of (- 0.5) in y
1.580 * [taylor]: Taking taylor expansion of 0.5 in y
1.580 * [backup-simplify]: Simplify 0.5 into 0.5
1.583 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
1.584 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0
1.584 * [backup-simplify]: Simplify (* 0.5 (/ 1 y)) into (/ 0.5 y)
1.584 * [backup-simplify]: Simplify (+ 0 (/ 0.5 y)) into (* 0.5 (/ 1 y))
1.584 * [backup-simplify]: Simplify (- (* 0.5 (/ 1 y))) into (- (* 0.5 (/ 1 y)))
1.584 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 y))) in y
1.584 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
1.584 * [taylor]: Taking taylor expansion of 0.5 in y
1.584 * [backup-simplify]: Simplify 0.5 into 0.5
1.584 * [taylor]: Taking taylor expansion of (/ 1 y) in y
1.584 * [taylor]: Taking taylor expansion of y in y
1.584 * [backup-simplify]: Simplify 0 into 0
1.584 * [backup-simplify]: Simplify 1 into 1
1.584 * [backup-simplify]: Simplify (/ 1 1) into 1
1.585 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
1.585 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
1.585 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
1.585 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
1.586 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
1.586 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
1.587 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0
1.587 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
1.587 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 (/ 1 y))) into 0
1.587 * [backup-simplify]: Simplify (+ 0 0) into 0
1.588 * [backup-simplify]: Simplify (- 0) into 0
1.588 * [taylor]: Taking taylor expansion of 0 in y
1.588 * [backup-simplify]: Simplify 0 into 0
1.588 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
1.589 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0
1.589 * [backup-simplify]: Simplify (- 0) into 0
1.589 * [backup-simplify]: Simplify 0 into 0
1.589 * [backup-simplify]: Simplify (- 0) into 0
1.589 * [backup-simplify]: Simplify 0 into 0
1.590 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
1.590 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
1.590 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
1.591 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 (/ 1 y)))) into 0
1.591 * [backup-simplify]: Simplify (+ 0 0) into 0
1.592 * [backup-simplify]: Simplify (- 0) into 0
1.592 * [taylor]: Taking taylor expansion of 0 in y
1.592 * [backup-simplify]: Simplify 0 into 0
1.592 * [backup-simplify]: Simplify 0 into 0
1.592 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
1.593 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0
1.593 * [backup-simplify]: Simplify (- 0) into 0
1.593 * [backup-simplify]: Simplify 0 into 0
1.594 * [backup-simplify]: Simplify (- 0) into 0
1.594 * [backup-simplify]: Simplify 0 into 0
1.594 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
1.595 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
1.595 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
1.596 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 y))))) into 0
1.596 * [backup-simplify]: Simplify (+ 0 0) into 0
1.596 * [backup-simplify]: Simplify (- 0) into 0
1.596 * [taylor]: Taking taylor expansion of 0 in y
1.596 * [backup-simplify]: Simplify 0 into 0
1.596 * [backup-simplify]: Simplify 0 into 0
1.597 * [backup-simplify]: Simplify (+ (* (- 0.5) (* 1 (/ 1 (/ 1 (- x))))) (* (- 0.5) (* (/ 1 (/ 1 (- y))) 1))) into (+ (* 0.5 x) (* 0.5 y))
1.597 * * * [progress]: simplifying candidates
1.597 * * * * [progress]: [ 1 / 22 ] simplifiying candidate #<alt (λ (x y) (log1p (expm1 (+ x (/ (- y x) 2.0)))))>
1.597 * * * * [progress]: [ 2 / 22 ] simplifiying candidate #<alt (λ (x y) (expm1 (log1p (+ x (/ (- y x) 2.0)))))>
1.597 * * * * [progress]: [ 3 / 22 ] simplifiying candidate #<alt (λ (x y) (fma (* (cbrt x) (cbrt x)) (cbrt x) (/ (- y x) 2.0)))>
1.597 * * * * [progress]: [ 4 / 22 ] simplifiying candidate #<alt (λ (x y) (fma (sqrt x) (sqrt x) (/ (- y x) 2.0)))>
1.597 * * * * [progress]: [ 5 / 22 ] simplifiying candidate #<alt (λ (x y) (fma 1 x (/ (- y x) 2.0)))>
1.597 * * * * [progress]: [ 6 / 22 ] simplifiying candidate #<alt (λ (x y) (log (* (exp x) (exp (/ (- y x) 2.0)))))>
1.597 * * * * [progress]: [ 7 / 22 ] simplifiying candidate #<alt (λ (x y) (pow (+ x (/ (- y x) 2.0)) 1))>
1.597 * * * * [progress]: [ 8 / 22 ] simplifiying candidate #<alt (λ (x y) (exp (log (+ x (/ (- y x) 2.0)))))>
1.597 * * * * [progress]: [ 9 / 22 ] simplifiying candidate #<alt (λ (x y) (log (exp (+ x (/ (- y x) 2.0)))))>
1.597 * * * * [progress]: [ 10 / 22 ] simplifiying candidate #<alt (λ (x y) (* (* (cbrt (+ x (/ (- y x) 2.0))) (cbrt (+ x (/ (- y x) 2.0)))) (cbrt (+ x (/ (- y x) 2.0)))))>
1.597 * * * * [progress]: [ 11 / 22 ] simplifiying candidate #<alt (λ (x y) (cbrt (* (* (+ x (/ (- y x) 2.0)) (+ x (/ (- y x) 2.0))) (+ x (/ (- y x) 2.0)))))>
1.597 * * * * [progress]: [ 12 / 22 ] simplifiying candidate #<alt (λ (x y) (* (sqrt (+ x (/ (- y x) 2.0))) (sqrt (+ x (/ (- y x) 2.0)))))>
1.597 * * * * [progress]: [ 13 / 22 ] simplifiying candidate #<alt (λ (x y) (/ (+ (pow x 3) (pow (/ (- y x) 2.0) 3)) (+ (* x x) (- (* (/ (- y x) 2.0) (/ (- y x) 2.0)) (* x (/ (- y x) 2.0))))))>
1.597 * * * * [progress]: [ 14 / 22 ] simplifiying candidate #<alt (λ (x y) (* 1 (+ x (/ (- y x) 2.0))))>
1.598 * * * * [progress]: [ 15 / 22 ] simplifiying candidate #<alt (λ (x y) (/ (- (* x x) (* (/ (- y x) 2.0) (/ (- y x) 2.0))) (- x (/ (- y x) 2.0))))>
1.598 * * * * [progress]: [ 16 / 22 ] simplifiying candidate #<alt (λ (x y) (* 1 (+ x (/ (- y x) 2.0))))>
1.598 * * * * [progress]: [ 17 / 22 ] simplifiying candidate #<alt (λ (x y) (- (+ x (/ y 2.0)) (/ x 2.0)))>
1.598 * * * * [progress]: [ 18 / 22 ] simplifiying candidate #<alt (λ (x y) (posit16->real (real->posit16 (+ x (/ (- y x) 2.0)))))>
1.598 * * * * [progress]: [ 19 / 22 ] simplifiying candidate #<alt (λ (x y) (+ (/ (- y x) 2.0) x))>
1.598 * * * * [progress]: [ 20 / 22 ] simplifiying candidate #<alt (λ (x y) (+ (* 0.5 x) (* 0.5 y)))>
1.598 * * * * [progress]: [ 21 / 22 ] simplifiying candidate #<alt (λ (x y) (+ (* 0.5 x) (* 0.5 y)))>
1.598 * * * * [progress]: [ 22 / 22 ] simplifiying candidate #<alt (λ (x y) (+ (* 0.5 x) (* 0.5 y)))>
1.598 * [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))
  (real->posit16 (+ x (/ (- y x) 2.0)))
  (+ (* 0.5 x) (* 0.5 y))
  (+ (* 0.5 x) (* 0.5 y))
  (+ (* 0.5 x) (* 0.5 y))
1.598 * * [simplify]: iteration 0: 36 enodes
1.606 * * [simplify]: iteration 1: 99 enodes
1.628 * * [simplify]: iteration 2: 270 enodes
1.709 * * [simplify]: iteration 3: 809 enodes
1.962 * * [simplify]: iteration complete: 2001 enodes
1.962 * * [simplify]: Extracting #0: cost 16 inf + 0
1.962 * * [simplify]: Extracting #1: cost 105 inf + 0
1.963 * * [simplify]: Extracting #2: cost 380 inf + 364
1.969 * * [simplify]: Extracting #3: cost 451 inf + 24094
1.994 * * [simplify]: Extracting #4: cost 197 inf + 99204
2.033 * * [simplify]: Extracting #5: cost 36 inf + 136587
2.072 * * [simplify]: Extracting #6: cost 8 inf + 141204
2.121 * * [simplify]: Extracting #7: cost 0 inf + 143638
2.156 * [simplify]: Simplified to:
  (expm1 (+ x (/ (- y x) 2.0)))
  (log1p (+ x (/ (- y x) 2.0)))
  (exp (+ x (/ (- 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)))
  (fma (/ (- y x) 2.0) (* (/ (- y x) 2.0) (/ (- y x) 2.0)) (* (* x x) x))
  (fma x x (* (- (/ (- 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))
  (+ (/ y 2.0) x)
  (real->posit16 (+ x (/ (- y x) 2.0)))
  (* 0.5 (+ y x))
  (* 0.5 (+ y x))
  (* 0.5 (+ y x))
2.156 * * * [progress]: adding candidates to table
2.236 * * [progress]: iteration 2 / 4
2.236 * * * [progress]: picking best candidate
2.239 * * * * [pick]: Picked  #<alt (λ (x y) (* 0.5 (+ y x)))>
2.239 * * * [progress]: localizing error
2.251 * * * [progress]: generating rewritten candidates
2.251 * * * [progress]: generating series expansions
2.251 * * * [progress]: simplifying candidates
2.251 * [simplify]: Simplifying:
  
2.251 * * [simplify]: iteration 0: 0 enodes
2.251 * * [simplify]: iteration complete: 0 enodes
2.251 * * [simplify]: Extracting #0: cost 0 inf + 0
2.251 * [simplify]: Simplified to:
  
2.251 * * * [progress]: adding candidates to table
2.252 * [progress]: [Phase 3 of 3] Extracting.
2.255 * [simplify]: Simplifying:
  (* 0.5 (+ y x))
2.255 * * [simplify]: iteration 0: 5 enodes
2.256 * * [simplify]: iteration 1: 7 enodes
2.256 * * [simplify]: iteration complete: 7 enodes
2.256 * * [simplify]: Extracting #0: cost 1 inf + 0
2.256 * * [simplify]: Extracting #1: cost 3 inf + 0
2.256 * * [simplify]: Extracting #2: cost 4 inf + 1
2.256 * * [simplify]: Extracting #3: cost 0 inf + 128
2.256 * [simplify]: Simplified to:
  (* (+ y x) 0.5)
3.048 * [regime-testing]: Baseline error score: 0
3.054 * [regime-testing]: Oracle error score: 0
3.054 * [regime-testing]: End program error score: 0
3.130 * [regime-testing]: Target error score: 0