88.841 * [progress]: [Phase 1 of 3] Setting up. 0.001 * * * [progress]: [1/2] Preparing points 0.016 * * * [progress]: [2/2] Setting up program. 0.018 * [progress]: [Phase 2 of 3] Improving. 0.018 * [simplify]: Simplifying: (+ x (/ (- y x) 2.0)) 0.018 * * [simplify]: Extracting # 0 : cost 0 0.018 * * [simplify]: Extracting # 1 : cost 0 0.018 * * [simplify]: Extracting # 2 : cost 0 0.018 * * [simplify]: Extracting # 3 : cost 0 0.018 * * [simplify]: Extracting # 4 : cost 0 0.018 * * [simplify]: Extracting # 5 : cost 0 0.018 * * [simplify]: iteration 0 : 6 enodes (cost 7 ) 0.019 * * [simplify]: Extracting # 0 : cost 0 0.019 * * [simplify]: Extracting # 1 : cost 0 0.019 * * [simplify]: Extracting # 2 : cost 0 0.019 * * [simplify]: iteration 1 : 12 enodes (cost 7 ) 0.021 * * [simplify]: Extracting # 0 : cost 0 0.021 * * [simplify]: Extracting # 1 : cost 0 0.021 * * [simplify]: Extracting # 2 : cost 0 0.021 * * [simplify]: iteration 2 : 19 enodes (cost 7 ) 0.024 * * [simplify]: Extracting # 0 : cost 0 0.024 * * [simplify]: Extracting # 1 : cost 0 0.024 * * [simplify]: Extracting # 2 : cost 0 0.024 * * [simplify]: iteration 3 : 28 enodes (cost 7 ) 0.028 * * [simplify]: Extracting # 0 : cost 0 0.028 * * [simplify]: Extracting # 1 : cost 0 0.028 * * [simplify]: Extracting # 2 : cost 0 0.028 * * [simplify]: iteration 4 : 39 enodes (cost 7 ) 0.038 * * [simplify]: Extracting # 0 : cost 0 0.038 * * [simplify]: Extracting # 1 : cost 0 0.038 * * [simplify]: Extracting # 2 : cost 0 0.038 * * [simplify]: iteration 5 : 96 enodes (cost 7 ) 0.057 * * [simplify]: Extracting # 0 : cost 0 0.057 * * [simplify]: Extracting # 1 : cost 0 0.058 * * [simplify]: Extracting # 2 : cost 0 0.058 * * [simplify]: iteration 6 : 220 enodes (cost 7 ) 0.131 * * [simplify]: Extracting # 0 : cost 0 0.131 * * [simplify]: Extracting # 1 : cost 0 0.132 * * [simplify]: Extracting # 2 : cost 0 0.133 * * [simplify]: iteration 7 : 607 enodes (cost 7 ) 0.562 * * [simplify]: Extracting # 0 : cost 0 0.563 * * [simplify]: Extracting # 1 : cost 0 0.568 * * [simplify]: Extracting # 2 : cost 0 0.570 * * [simplify]: iteration 8 : 2030 enodes (cost 7 ) 1.384 * * [simplify]: Extracting # 0 : cost 0 1.393 * * [simplify]: Extracting # 1 : cost 0 1.410 * * [simplify]: Extracting # 2 : cost 0 1.417 * * [simplify]: iteration done: 5001 enodes (cost 7 ) 1.418 * [simplify]: Simplified to: (+ x (/ (- y x) 2.0)) 1.418 * * [progress]: iteration 1 / 4 1.418 * * * [progress]: picking best candidate 1.420 * * * * [pick]: Picked # 1.420 * * * [progress]: localizing error 1.429 * * * [progress]: generating rewritten candidates 1.429 * * * * [progress]: [ 1 / 1 ] rewriting at (2) 1.465 * * * [progress]: generating series expansions 1.465 * * * * [progress]: [ 1 / 1 ] generating series at (2) 1.466 * [backup-simplify]: Simplify (+ x (/ (- y x) 2.0)) into (+ (* 0.5 x) (* 0.5 y)) 1.466 * [approximate]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in (x y) around 0 1.466 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in y 1.466 * [taylor]: Taking taylor expansion of (* 0.5 x) in y 1.466 * [taylor]: Taking taylor expansion of 0.5 in y 1.466 * [backup-simplify]: Simplify 0.5 into 0.5 1.466 * [taylor]: Taking taylor expansion of x in y 1.466 * [backup-simplify]: Simplify x into x 1.466 * [taylor]: Taking taylor expansion of (* 0.5 y) in y 1.466 * [taylor]: Taking taylor expansion of 0.5 in y 1.466 * [backup-simplify]: Simplify 0.5 into 0.5 1.466 * [taylor]: Taking taylor expansion of y in y 1.466 * [backup-simplify]: Simplify 0 into 0 1.466 * [backup-simplify]: Simplify 1 into 1 1.466 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in x 1.466 * [taylor]: Taking taylor expansion of (* 0.5 x) in x 1.466 * [taylor]: Taking taylor expansion of 0.5 in x 1.466 * [backup-simplify]: Simplify 0.5 into 0.5 1.466 * [taylor]: Taking taylor expansion of x in x 1.466 * [backup-simplify]: Simplify 0 into 0 1.466 * [backup-simplify]: Simplify 1 into 1 1.466 * [taylor]: Taking taylor expansion of (* 0.5 y) in x 1.466 * [taylor]: Taking taylor expansion of 0.5 in x 1.466 * [backup-simplify]: Simplify 0.5 into 0.5 1.466 * [taylor]: Taking taylor expansion of y in x 1.466 * [backup-simplify]: Simplify y into y 1.466 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in x 1.466 * [taylor]: Taking taylor expansion of (* 0.5 x) in x 1.466 * [taylor]: Taking taylor expansion of 0.5 in x 1.466 * [backup-simplify]: Simplify 0.5 into 0.5 1.466 * [taylor]: Taking taylor expansion of x in x 1.466 * [backup-simplify]: Simplify 0 into 0 1.466 * [backup-simplify]: Simplify 1 into 1 1.466 * [taylor]: Taking taylor expansion of (* 0.5 y) in x 1.466 * [taylor]: Taking taylor expansion of 0.5 in x 1.466 * [backup-simplify]: Simplify 0.5 into 0.5 1.466 * [taylor]: Taking taylor expansion of y in x 1.466 * [backup-simplify]: Simplify y into y 1.467 * [backup-simplify]: Simplify (* 0.5 0) into 0 1.467 * [backup-simplify]: Simplify (* 0.5 y) into (* 0.5 y) 1.467 * [backup-simplify]: Simplify (+ 0 (* 0.5 y)) into (* 0.5 y) 1.467 * [taylor]: Taking taylor expansion of (* 0.5 y) in y 1.467 * [taylor]: Taking taylor expansion of 0.5 in y 1.467 * [backup-simplify]: Simplify 0.5 into 0.5 1.467 * [taylor]: Taking taylor expansion of y in y 1.467 * [backup-simplify]: Simplify 0 into 0 1.467 * [backup-simplify]: Simplify 1 into 1 1.468 * [backup-simplify]: Simplify (* 0.5 0) into 0 1.468 * [backup-simplify]: Simplify 0 into 0 1.469 * [backup-simplify]: Simplify (+ (* 0.5 1) (* 0 0)) into 0.5 1.470 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 y)) into 0 1.470 * [backup-simplify]: Simplify (+ 0.5 0) into 0.5 1.470 * [taylor]: Taking taylor expansion of 0.5 in y 1.470 * [backup-simplify]: Simplify 0.5 into 0.5 1.470 * [backup-simplify]: Simplify 0.5 into 0.5 1.471 * [backup-simplify]: Simplify (+ (* 0.5 1) (* 0 0)) into 0.5 1.471 * [backup-simplify]: Simplify 0.5 into 0.5 1.472 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 1) (* 0 0))) into 0 1.473 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 y))) into 0 1.473 * [backup-simplify]: Simplify (+ 0 0) into 0 1.473 * [taylor]: Taking taylor expansion of 0 in y 1.473 * [backup-simplify]: Simplify 0 into 0 1.473 * [backup-simplify]: Simplify 0 into 0 1.473 * [backup-simplify]: Simplify 0 into 0 1.474 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 1) (* 0 0))) into 0 1.474 * [backup-simplify]: Simplify 0 into 0 1.475 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0 1.476 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 y)))) into 0 1.477 * [backup-simplify]: Simplify (+ 0 0) into 0 1.477 * [taylor]: Taking taylor expansion of 0 in y 1.477 * [backup-simplify]: Simplify 0 into 0 1.477 * [backup-simplify]: Simplify 0 into 0 1.477 * [backup-simplify]: Simplify 0 into 0 1.477 * [backup-simplify]: Simplify 0 into 0 1.477 * [backup-simplify]: Simplify (+ (* 0.5 (* y 1)) (* 0.5 (* 1 x))) into (+ (* 0.5 x) (* 0.5 y)) 1.477 * [backup-simplify]: Simplify (+ (/ 1 x) (/ (- (/ 1 y) (/ 1 x)) 2.0)) into (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) 1.477 * [approximate]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in (x y) around 0 1.477 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in y 1.477 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y 1.478 * [taylor]: Taking taylor expansion of 0.5 in y 1.478 * [backup-simplify]: Simplify 0.5 into 0.5 1.478 * [taylor]: Taking taylor expansion of (/ 1 y) in y 1.478 * [taylor]: Taking taylor expansion of y in y 1.478 * [backup-simplify]: Simplify 0 into 0 1.478 * [backup-simplify]: Simplify 1 into 1 1.478 * [backup-simplify]: Simplify (/ 1 1) into 1 1.478 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y 1.478 * [taylor]: Taking taylor expansion of 0.5 in y 1.478 * [backup-simplify]: Simplify 0.5 into 0.5 1.478 * [taylor]: Taking taylor expansion of (/ 1 x) in y 1.478 * [taylor]: Taking taylor expansion of x in y 1.478 * [backup-simplify]: Simplify x into x 1.478 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x) 1.478 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in x 1.478 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x 1.478 * [taylor]: Taking taylor expansion of 0.5 in x 1.478 * [backup-simplify]: Simplify 0.5 into 0.5 1.478 * [taylor]: Taking taylor expansion of (/ 1 y) in x 1.478 * [taylor]: Taking taylor expansion of y in x 1.478 * [backup-simplify]: Simplify y into y 1.479 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y) 1.479 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x 1.479 * [taylor]: Taking taylor expansion of 0.5 in x 1.479 * [backup-simplify]: Simplify 0.5 into 0.5 1.479 * [taylor]: Taking taylor expansion of (/ 1 x) in x 1.479 * [taylor]: Taking taylor expansion of x in x 1.479 * [backup-simplify]: Simplify 0 into 0 1.479 * [backup-simplify]: Simplify 1 into 1 1.479 * [backup-simplify]: Simplify (/ 1 1) into 1 1.479 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in x 1.479 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x 1.479 * [taylor]: Taking taylor expansion of 0.5 in x 1.479 * [backup-simplify]: Simplify 0.5 into 0.5 1.479 * [taylor]: Taking taylor expansion of (/ 1 y) in x 1.479 * [taylor]: Taking taylor expansion of y in x 1.479 * [backup-simplify]: Simplify y into y 1.479 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y) 1.479 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x 1.479 * [taylor]: Taking taylor expansion of 0.5 in x 1.479 * [backup-simplify]: Simplify 0.5 into 0.5 1.479 * [taylor]: Taking taylor expansion of (/ 1 x) in x 1.480 * [taylor]: Taking taylor expansion of x in x 1.480 * [backup-simplify]: Simplify 0 into 0 1.480 * [backup-simplify]: Simplify 1 into 1 1.480 * [backup-simplify]: Simplify (/ 1 1) into 1 1.480 * [backup-simplify]: Simplify (* 0.5 1) into 0.5 1.481 * [backup-simplify]: Simplify (+ 0 0.5) into 0.5 1.481 * [taylor]: Taking taylor expansion of 0.5 in y 1.481 * [backup-simplify]: Simplify 0.5 into 0.5 1.481 * [backup-simplify]: Simplify (* 0.5 (/ 1 y)) into (/ 0.5 y) 1.482 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0 1.482 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0 1.482 * [backup-simplify]: Simplify (+ (/ 0.5 y) 0) into (* 0.5 (/ 1 y)) 1.482 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y 1.482 * [taylor]: Taking taylor expansion of 0.5 in y 1.482 * [backup-simplify]: Simplify 0.5 into 0.5 1.482 * [taylor]: Taking taylor expansion of (/ 1 y) in y 1.482 * [taylor]: Taking taylor expansion of y in y 1.482 * [backup-simplify]: Simplify 0 into 0 1.483 * [backup-simplify]: Simplify 1 into 1 1.483 * [backup-simplify]: Simplify (/ 1 1) into 1 1.483 * [backup-simplify]: Simplify (* 0.5 1) into 0.5 1.483 * [backup-simplify]: Simplify 0.5 into 0.5 1.483 * [backup-simplify]: Simplify 0.5 into 0.5 1.483 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0 1.484 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 (/ 1 y))) into 0 1.485 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0 1.486 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0 1.486 * [backup-simplify]: Simplify (+ 0 0) into 0 1.486 * [taylor]: Taking taylor expansion of 0 in y 1.486 * [backup-simplify]: Simplify 0 into 0 1.486 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0 1.487 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0 1.487 * [backup-simplify]: Simplify 0 into 0 1.487 * [backup-simplify]: Simplify 0 into 0 1.487 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0 1.487 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 (/ 1 y)))) into 0 1.488 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0 1.489 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0 1.489 * [backup-simplify]: Simplify (+ 0 0) into 0 1.489 * [taylor]: Taking taylor expansion of 0 in y 1.489 * [backup-simplify]: Simplify 0 into 0 1.489 * [backup-simplify]: Simplify 0 into 0 1.489 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0 1.490 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0 1.490 * [backup-simplify]: Simplify 0 into 0 1.490 * [backup-simplify]: Simplify 0 into 0 1.490 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0 1.491 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 y))))) into 0 1.491 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0 1.492 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0 1.492 * [backup-simplify]: Simplify (+ 0 0) into 0 1.492 * [taylor]: Taking taylor expansion of 0 in y 1.492 * [backup-simplify]: Simplify 0 into 0 1.492 * [backup-simplify]: Simplify 0 into 0 1.493 * [backup-simplify]: Simplify (+ (* 0.5 (* 1 (/ 1 (/ 1 x)))) (* 0.5 (* (/ 1 (/ 1 y)) 1))) into (+ (* 0.5 x) (* 0.5 y)) 1.493 * [backup-simplify]: Simplify (+ (/ 1 (- x)) (/ (- (/ 1 (- y)) (/ 1 (- x))) 2.0)) into (- (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))) 1.493 * [approximate]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))) in (x y) around 0 1.493 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))) in y 1.493 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in y 1.493 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y 1.493 * [taylor]: Taking taylor expansion of 0.5 in y 1.493 * [backup-simplify]: Simplify 0.5 into 0.5 1.493 * [taylor]: Taking taylor expansion of (/ 1 y) in y 1.493 * [taylor]: Taking taylor expansion of y in y 1.493 * [backup-simplify]: Simplify 0 into 0 1.493 * [backup-simplify]: Simplify 1 into 1 1.493 * [backup-simplify]: Simplify (/ 1 1) into 1 1.493 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y 1.493 * [taylor]: Taking taylor expansion of 0.5 in y 1.493 * [backup-simplify]: Simplify 0.5 into 0.5 1.493 * [taylor]: Taking taylor expansion of (/ 1 x) in y 1.493 * [taylor]: Taking taylor expansion of x in y 1.493 * [backup-simplify]: Simplify x into x 1.493 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x) 1.493 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))) in x 1.493 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in x 1.494 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x 1.494 * [taylor]: Taking taylor expansion of 0.5 in x 1.494 * [backup-simplify]: Simplify 0.5 into 0.5 1.494 * [taylor]: Taking taylor expansion of (/ 1 y) in x 1.494 * [taylor]: Taking taylor expansion of y in x 1.494 * [backup-simplify]: Simplify y into y 1.494 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y) 1.494 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x 1.494 * [taylor]: Taking taylor expansion of 0.5 in x 1.494 * [backup-simplify]: Simplify 0.5 into 0.5 1.494 * [taylor]: Taking taylor expansion of (/ 1 x) in x 1.494 * [taylor]: Taking taylor expansion of x in x 1.494 * [backup-simplify]: Simplify 0 into 0 1.494 * [backup-simplify]: Simplify 1 into 1 1.494 * [backup-simplify]: Simplify (/ 1 1) into 1 1.494 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))) in x 1.494 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in x 1.494 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x 1.494 * [taylor]: Taking taylor expansion of 0.5 in x 1.494 * [backup-simplify]: Simplify 0.5 into 0.5 1.494 * [taylor]: Taking taylor expansion of (/ 1 y) in x 1.494 * [taylor]: Taking taylor expansion of y in x 1.494 * [backup-simplify]: Simplify y into y 1.494 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y) 1.494 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x 1.494 * [taylor]: Taking taylor expansion of 0.5 in x 1.494 * [backup-simplify]: Simplify 0.5 into 0.5 1.494 * [taylor]: Taking taylor expansion of (/ 1 x) in x 1.494 * [taylor]: Taking taylor expansion of x in x 1.494 * [backup-simplify]: Simplify 0 into 0 1.494 * [backup-simplify]: Simplify 1 into 1 1.495 * [backup-simplify]: Simplify (/ 1 1) into 1 1.495 * [backup-simplify]: Simplify (* 0.5 1) into 0.5 1.495 * [backup-simplify]: Simplify (+ 0 0.5) into 0.5 1.496 * [backup-simplify]: Simplify (- 0.5) into (- 0.5) 1.496 * [taylor]: Taking taylor expansion of (- 0.5) in y 1.496 * [taylor]: Taking taylor expansion of 0.5 in y 1.496 * [backup-simplify]: Simplify 0.5 into 0.5 1.496 * [backup-simplify]: Simplify (* 0.5 (/ 1 y)) into (/ 0.5 y) 1.496 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0 1.497 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0 1.497 * [backup-simplify]: Simplify (+ (/ 0.5 y) 0) into (* 0.5 (/ 1 y)) 1.497 * [backup-simplify]: Simplify (- (* 0.5 (/ 1 y))) into (- (* 0.5 (/ 1 y))) 1.497 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 y))) in y 1.497 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y 1.497 * [taylor]: Taking taylor expansion of 0.5 in y 1.497 * [backup-simplify]: Simplify 0.5 into 0.5 1.497 * [taylor]: Taking taylor expansion of (/ 1 y) in y 1.497 * [taylor]: Taking taylor expansion of y in y 1.497 * [backup-simplify]: Simplify 0 into 0 1.497 * [backup-simplify]: Simplify 1 into 1 1.497 * [backup-simplify]: Simplify (/ 1 1) into 1 1.498 * [backup-simplify]: Simplify (* 0.5 1) into 0.5 1.498 * [backup-simplify]: Simplify (- 0.5) into (- 0.5) 1.498 * [backup-simplify]: Simplify (- 0.5) into (- 0.5) 1.498 * [backup-simplify]: Simplify (- 0.5) into (- 0.5) 1.499 * [backup-simplify]: Simplify (- 0.5) into (- 0.5) 1.499 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0 1.499 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 (/ 1 y))) into 0 1.499 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0 1.500 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0 1.500 * [backup-simplify]: Simplify (+ 0 0) into 0 1.500 * [backup-simplify]: Simplify (- 0) into 0 1.501 * [taylor]: Taking taylor expansion of 0 in y 1.501 * [backup-simplify]: Simplify 0 into 0 1.501 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0 1.501 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0 1.502 * [backup-simplify]: Simplify (- 0) into 0 1.502 * [backup-simplify]: Simplify 0 into 0 1.502 * [backup-simplify]: Simplify (- 0) into 0 1.502 * [backup-simplify]: Simplify 0 into 0 1.502 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0 1.503 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 (/ 1 y)))) into 0 1.503 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0 1.504 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0 1.504 * [backup-simplify]: Simplify (+ 0 0) into 0 1.504 * [backup-simplify]: Simplify (- 0) into 0 1.504 * [taylor]: Taking taylor expansion of 0 in y 1.504 * [backup-simplify]: Simplify 0 into 0 1.504 * [backup-simplify]: Simplify 0 into 0 1.505 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0 1.505 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0 1.506 * [backup-simplify]: Simplify (- 0) into 0 1.506 * [backup-simplify]: Simplify 0 into 0 1.506 * [backup-simplify]: Simplify (- 0) into 0 1.506 * [backup-simplify]: Simplify 0 into 0 1.506 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0 1.510 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 y))))) into 0 1.511 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0 1.512 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0 1.512 * [backup-simplify]: Simplify (+ 0 0) into 0 1.512 * [backup-simplify]: Simplify (- 0) into 0 1.512 * [taylor]: Taking taylor expansion of 0 in y 1.512 * [backup-simplify]: Simplify 0 into 0 1.512 * [backup-simplify]: Simplify 0 into 0 1.513 * [backup-simplify]: Simplify (+ (* (- 0.5) (* 1 (/ 1 (/ 1 (- x))))) (* (- 0.5) (* (/ 1 (/ 1 (- y))) 1))) into (+ (* 0.5 x) (* 0.5 y)) 1.513 * * * [progress]: simplifying candidates 1.514 * [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)) 1.514 * * [simplify]: Extracting # 0 : cost 0 1.514 * * [simplify]: Extracting # 1 : cost 0 1.514 * * [simplify]: Extracting # 2 : cost 0 1.514 * * [simplify]: Extracting # 3 : cost 0 1.514 * * [simplify]: Extracting # 4 : cost 0 1.514 * * [simplify]: Extracting # 5 : cost 0 1.514 * * [simplify]: Extracting # 6 : cost 0 1.514 * * [simplify]: iteration 0 : 35 enodes (cost 194 ) 1.522 * * [simplify]: Extracting # 0 : cost 0 1.522 * * [simplify]: Extracting # 1 : cost 0 1.522 * * [simplify]: Extracting # 2 : cost 0 1.522 * * [simplify]: Extracting # 3 : cost 0 1.522 * * [simplify]: Extracting # 4 : cost 0 1.522 * * [simplify]: iteration 1 : 98 enodes (cost 180 ) 1.546 * * [simplify]: Extracting # 0 : cost 0 1.546 * * [simplify]: Extracting # 1 : cost 0 1.546 * * [simplify]: Extracting # 2 : cost 0 1.546 * * [simplify]: Extracting # 3 : cost 0 1.547 * * [simplify]: iteration 2 : 269 enodes (cost 166 ) 1.628 * * [simplify]: Extracting # 0 : cost 0 1.629 * * [simplify]: Extracting # 1 : cost 0 1.630 * * [simplify]: Extracting # 2 : cost 0 1.631 * * [simplify]: Extracting # 3 : cost 0 1.632 * * [simplify]: Extracting # 4 : cost 0 1.632 * * [simplify]: iteration 3 : 872 enodes (cost 166 ) 1.983 * * [simplify]: Extracting # 0 : cost 0 1.989 * * [simplify]: Extracting # 1 : cost 0 1.998 * * [simplify]: Extracting # 2 : cost 0 2.005 * * [simplify]: Extracting # 3 : cost 0 2.011 * * [simplify]: Extracting # 4 : cost 0 2.017 * * [simplify]: Extracting # 5 : cost 0 2.023 * * [simplify]: iteration done: 5000 enodes (cost 166 ) 2.023 * [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))) (pow (+ x (/ (- y x) 2.0)) 3) (sqrt (+ x (/ (- y x) 2.0))) (sqrt (+ x (/ (- y x) 2.0))) (+ (pow x 3) (pow (/ (- y x) 2.0) 3)) (fma x x (* (/ (- 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 (/ (- y x) 2.0)) (+ x (/ y 2.0)) (* 0.5 (+ x y)) (* 0.5 (+ x y)) (* 0.5 (+ x y)) 2.023 * * * [progress]: adding candidates to table 2.068 * * [progress]: iteration 2 / 4 2.068 * * * [progress]: picking best candidate 2.069 * * * * [pick]: Picked # 2.069 * * * [progress]: localizing error 2.073 * * * [progress]: generating rewritten candidates 2.073 * * * [progress]: generating series expansions 2.073 * * * [progress]: simplifying candidates 2.073 * [simplify]: Simplifying: 2.073 * * [simplify]: Extracting # 0 : cost 0 2.073 * * [simplify]: iteration 0 : 0 enodes (cost 0 ) 2.073 * * [simplify]: Extracting # 0 : cost 0 2.073 * * [simplify]: iteration done: 0 enodes (cost 0 ) 2.073 * [simplify]: Simplified to: 2.073 * * * [progress]: adding candidates to table 2.074 * [progress]: [Phase 3 of 3] Extracting. 2.075 * [simplify]: Simplifying: (* 0.5 (+ x y)) 2.075 * * [simplify]: Extracting # 0 : cost 0 2.075 * * [simplify]: Extracting # 1 : cost 0 2.075 * * [simplify]: Extracting # 2 : cost 0 2.076 * * [simplify]: Extracting # 3 : cost 0 2.076 * * [simplify]: Extracting # 4 : cost 0 2.076 * * [simplify]: iteration 0 : 5 enodes (cost 5 ) 2.076 * * [simplify]: Extracting # 0 : cost 0 2.076 * * [simplify]: iteration 1 : 7 enodes (cost 5 ) 2.077 * * [simplify]: Extracting # 0 : cost 0 2.077 * * [simplify]: iteration done: 7 enodes (cost 5 ) 2.077 * [simplify]: Simplified to: (* 0.5 (+ x y)) 2.731 * [regime-testing]: Baseline error score: 0 2.733 * [regime-testing]: Oracle error score: 0 2.733 * [regime-testing]: End program error score: 0 2.753 * [regime-testing]: Target error score: 0