4.179 * [progress]: [Phase 1 of 3] Setting up. 0.002 * * * [progress]: [1/2] Preparing points 0.023 * * * [progress]: [2/2] Setting up program. 0.025 * [progress]: [Phase 2 of 3] Improving. 0.026 * [simplify]: Simplifying: (+ x (/ (- y x) 2.0)) 0.026 * * [simplify]: Extracting # 0 : cost 0 0.026 * * [simplify]: Extracting # 1 : cost 0 0.026 * * [simplify]: Extracting # 2 : cost 0 0.026 * * [simplify]: Extracting # 3 : cost 0 0.026 * * [simplify]: Extracting # 4 : cost 0 0.026 * * [simplify]: Extracting # 5 : cost 0 0.026 * * [simplify]: iteration 0 : 6 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 1 : 12 enodes (cost 7 ) 0.032 * * [simplify]: Extracting # 0 : cost 0 0.032 * * [simplify]: Extracting # 1 : cost 0 0.032 * * [simplify]: Extracting # 2 : cost 0 0.032 * * [simplify]: iteration 2 : 19 enodes (cost 7 ) 0.037 * * [simplify]: Extracting # 0 : cost 0 0.038 * * [simplify]: Extracting # 1 : cost 0 0.038 * * [simplify]: Extracting # 2 : cost 0 0.038 * * [simplify]: iteration 3 : 28 enodes (cost 7 ) 0.048 * * [simplify]: Extracting # 0 : cost 0 0.048 * * [simplify]: Extracting # 1 : cost 0 0.048 * * [simplify]: Extracting # 2 : cost 0 0.048 * * [simplify]: iteration 4 : 39 enodes (cost 7 ) 0.071 * * [simplify]: Extracting # 0 : cost 0 0.071 * * [simplify]: Extracting # 1 : cost 0 0.071 * * [simplify]: Extracting # 2 : cost 0 0.071 * * [simplify]: iteration 5 : 44 enodes (cost 7 ) 0.084 * * [simplify]: Extracting # 0 : cost 0 0.084 * * [simplify]: Extracting # 1 : cost 0 0.084 * * [simplify]: Extracting # 2 : cost 0 0.084 * * [simplify]: iteration 6 : 49 enodes (cost 7 ) 0.097 * * [simplify]: Extracting # 0 : cost 0 0.098 * * [simplify]: Extracting # 1 : cost 0 0.098 * * [simplify]: Extracting # 2 : cost 0 0.098 * * [simplify]: iteration 7 : 58 enodes (cost 7 ) 0.116 * * [simplify]: Extracting # 0 : cost 0 0.116 * * [simplify]: Extracting # 1 : cost 0 0.116 * * [simplify]: Extracting # 2 : cost 0 0.117 * * [simplify]: iteration 8 : 75 enodes (cost 7 ) 0.144 * * [simplify]: Extracting # 0 : cost 0 0.144 * * [simplify]: Extracting # 1 : cost 0 0.144 * * [simplify]: Extracting # 2 : cost 0 0.144 * * [simplify]: iteration 9 : 91 enodes (cost 7 ) 0.170 * * [simplify]: Extracting # 0 : cost 0 0.170 * * [simplify]: Extracting # 1 : cost 0 0.170 * * [simplify]: iteration 10 : 102 enodes (cost 7 ) 0.204 * * [simplify]: Extracting # 0 : cost 0 0.205 * * [simplify]: Extracting # 1 : cost 0 0.206 * * [simplify]: Extracting # 2 : cost 0 0.206 * * [simplify]: iteration 11 : 104 enodes (cost 7 ) 0.221 * * [simplify]: Extracting # 0 : cost 0 0.221 * * [simplify]: Extracting # 1 : cost 0 0.221 * * [simplify]: Extracting # 2 : cost 0 0.221 * * [simplify]: iteration 12 : 108 enodes (cost 7 ) 0.242 * * [simplify]: Extracting # 0 : cost 0 0.242 * * [simplify]: Extracting # 1 : cost 0 0.242 * * [simplify]: iteration 13 : 109 enodes (cost 7 ) 0.272 * * [simplify]: Extracting # 0 : cost 0 0.273 * * [simplify]: iteration done: 109 enodes (cost 7 ) 0.273 * [simplify]: Simplified to: (+ x (/ (- y x) 2.0)) 0.273 * * [progress]: iteration 1 / 4 0.273 * * * [progress]: picking best candidate 0.276 * * * * [pick]: Picked # 0.276 * * * [progress]: localizing error 0.287 * * * [progress]: generating rewritten candidates 0.287 * * * * [progress]: [ 1 / 1 ] rewriting at (2) 0.335 * * * [progress]: generating series expansions 0.335 * * * * [progress]: [ 1 / 1 ] generating series at (2) 0.335 * [backup-simplify]: Simplify (+ x (/ (- y x) 2.0)) into (+ (* 0.5 x) (* 0.5 y)) 0.335 * [approximate]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in (x y) around 0 0.335 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in y 0.335 * [taylor]: Taking taylor expansion of (* 0.5 x) in y 0.335 * [taylor]: Taking taylor expansion of 0.5 in y 0.335 * [backup-simplify]: Simplify 0.5 into 0.5 0.335 * [taylor]: Taking taylor expansion of x in y 0.335 * [backup-simplify]: Simplify x into x 0.335 * [taylor]: Taking taylor expansion of (* 0.5 y) in y 0.335 * [taylor]: Taking taylor expansion of 0.5 in y 0.335 * [backup-simplify]: Simplify 0.5 into 0.5 0.335 * [taylor]: Taking taylor expansion of y in y 0.335 * [backup-simplify]: Simplify 0 into 0 0.335 * [backup-simplify]: Simplify 1 into 1 0.335 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in x 0.335 * [taylor]: Taking taylor expansion of (* 0.5 x) in x 0.335 * [taylor]: Taking taylor expansion of 0.5 in x 0.335 * [backup-simplify]: Simplify 0.5 into 0.5 0.335 * [taylor]: Taking taylor expansion of x in x 0.336 * [backup-simplify]: Simplify 0 into 0 0.336 * [backup-simplify]: Simplify 1 into 1 0.336 * [taylor]: Taking taylor expansion of (* 0.5 y) in x 0.336 * [taylor]: Taking taylor expansion of 0.5 in x 0.336 * [backup-simplify]: Simplify 0.5 into 0.5 0.336 * [taylor]: Taking taylor expansion of y in x 0.336 * [backup-simplify]: Simplify y into y 0.336 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in x 0.336 * [taylor]: Taking taylor expansion of (* 0.5 x) in x 0.336 * [taylor]: Taking taylor expansion of 0.5 in x 0.336 * [backup-simplify]: Simplify 0.5 into 0.5 0.336 * [taylor]: Taking taylor expansion of x in x 0.336 * [backup-simplify]: Simplify 0 into 0 0.336 * [backup-simplify]: Simplify 1 into 1 0.336 * [taylor]: Taking taylor expansion of (* 0.5 y) in x 0.336 * [taylor]: Taking taylor expansion of 0.5 in x 0.336 * [backup-simplify]: Simplify 0.5 into 0.5 0.336 * [taylor]: Taking taylor expansion of y in x 0.336 * [backup-simplify]: Simplify y into y 0.336 * [backup-simplify]: Simplify (* 0.5 0) into 0 0.336 * [backup-simplify]: Simplify (* 0.5 y) into (* 0.5 y) 0.337 * [backup-simplify]: Simplify (+ 0 (* 0.5 y)) into (* 0.5 y) 0.337 * [taylor]: Taking taylor expansion of (* 0.5 y) in y 0.337 * [taylor]: Taking taylor expansion of 0.5 in y 0.337 * [backup-simplify]: Simplify 0.5 into 0.5 0.337 * [taylor]: Taking taylor expansion of y in y 0.337 * [backup-simplify]: Simplify 0 into 0 0.337 * [backup-simplify]: Simplify 1 into 1 0.337 * [backup-simplify]: Simplify (* 0.5 0) into 0 0.337 * [backup-simplify]: Simplify 0 into 0 0.338 * [backup-simplify]: Simplify (+ (* 0.5 1) (* 0 0)) into 0.5 0.338 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 y)) into 0 0.339 * [backup-simplify]: Simplify (+ 0.5 0) into 0.5 0.339 * [taylor]: Taking taylor expansion of 0.5 in y 0.339 * [backup-simplify]: Simplify 0.5 into 0.5 0.339 * [backup-simplify]: Simplify 0.5 into 0.5 0.340 * [backup-simplify]: Simplify (+ (* 0.5 1) (* 0 0)) into 0.5 0.340 * [backup-simplify]: Simplify 0.5 into 0.5 0.340 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 1) (* 0 0))) into 0 0.341 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 y))) into 0 0.341 * [backup-simplify]: Simplify (+ 0 0) into 0 0.341 * [taylor]: Taking taylor expansion of 0 in y 0.341 * [backup-simplify]: Simplify 0 into 0 0.341 * [backup-simplify]: Simplify 0 into 0 0.341 * [backup-simplify]: Simplify 0 into 0 0.342 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 1) (* 0 0))) into 0 0.342 * [backup-simplify]: Simplify 0 into 0 0.342 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0 0.343 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 y)))) into 0 0.343 * [backup-simplify]: Simplify (+ 0 0) into 0 0.343 * [taylor]: Taking taylor expansion of 0 in y 0.343 * [backup-simplify]: Simplify 0 into 0 0.343 * [backup-simplify]: Simplify 0 into 0 0.343 * [backup-simplify]: Simplify 0 into 0 0.343 * [backup-simplify]: Simplify 0 into 0 0.344 * [backup-simplify]: Simplify (+ (* 0.5 (* y 1)) (* 0.5 (* 1 x))) into (+ (* 0.5 x) (* 0.5 y)) 0.344 * [backup-simplify]: Simplify (+ (/ 1 x) (/ (- (/ 1 y) (/ 1 x)) 2.0)) into (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) 0.344 * [approximate]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in (x y) around 0 0.344 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in y 0.344 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y 0.344 * [taylor]: Taking taylor expansion of 0.5 in y 0.344 * [backup-simplify]: Simplify 0.5 into 0.5 0.344 * [taylor]: Taking taylor expansion of (/ 1 y) in y 0.344 * [taylor]: Taking taylor expansion of y in y 0.344 * [backup-simplify]: Simplify 0 into 0 0.344 * [backup-simplify]: Simplify 1 into 1 0.344 * [backup-simplify]: Simplify (/ 1 1) into 1 0.344 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y 0.344 * [taylor]: Taking taylor expansion of 0.5 in y 0.344 * [backup-simplify]: Simplify 0.5 into 0.5 0.344 * [taylor]: Taking taylor expansion of (/ 1 x) in y 0.344 * [taylor]: Taking taylor expansion of x in y 0.344 * [backup-simplify]: Simplify x into x 0.344 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x) 0.344 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in x 0.344 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x 0.344 * [taylor]: Taking taylor expansion of 0.5 in x 0.344 * [backup-simplify]: Simplify 0.5 into 0.5 0.344 * [taylor]: Taking taylor expansion of (/ 1 y) in x 0.344 * [taylor]: Taking taylor expansion of y in x 0.344 * [backup-simplify]: Simplify y into y 0.344 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y) 0.344 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x 0.345 * [taylor]: Taking taylor expansion of 0.5 in x 0.345 * [backup-simplify]: Simplify 0.5 into 0.5 0.345 * [taylor]: Taking taylor expansion of (/ 1 x) in x 0.345 * [taylor]: Taking taylor expansion of x in x 0.345 * [backup-simplify]: Simplify 0 into 0 0.345 * [backup-simplify]: Simplify 1 into 1 0.345 * [backup-simplify]: Simplify (/ 1 1) into 1 0.345 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in x 0.345 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x 0.345 * [taylor]: Taking taylor expansion of 0.5 in x 0.345 * [backup-simplify]: Simplify 0.5 into 0.5 0.345 * [taylor]: Taking taylor expansion of (/ 1 y) in x 0.345 * [taylor]: Taking taylor expansion of y in x 0.345 * [backup-simplify]: Simplify y into y 0.345 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y) 0.345 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x 0.345 * [taylor]: Taking taylor expansion of 0.5 in x 0.345 * [backup-simplify]: Simplify 0.5 into 0.5 0.345 * [taylor]: Taking taylor expansion of (/ 1 x) in x 0.345 * [taylor]: Taking taylor expansion of x in x 0.345 * [backup-simplify]: Simplify 0 into 0 0.345 * [backup-simplify]: Simplify 1 into 1 0.345 * [backup-simplify]: Simplify (/ 1 1) into 1 0.346 * [backup-simplify]: Simplify (* 0.5 1) into 0.5 0.346 * [backup-simplify]: Simplify (+ 0 0.5) into 0.5 0.346 * [taylor]: Taking taylor expansion of 0.5 in y 0.346 * [backup-simplify]: Simplify 0.5 into 0.5 0.346 * [backup-simplify]: Simplify (* 0.5 (/ 1 y)) into (/ 0.5 y) 0.347 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0 0.347 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0 0.347 * [backup-simplify]: Simplify (+ (/ 0.5 y) 0) into (* 0.5 (/ 1 y)) 0.347 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y 0.347 * [taylor]: Taking taylor expansion of 0.5 in y 0.347 * [backup-simplify]: Simplify 0.5 into 0.5 0.347 * [taylor]: Taking taylor expansion of (/ 1 y) in y 0.347 * [taylor]: Taking taylor expansion of y in y 0.347 * [backup-simplify]: Simplify 0 into 0 0.347 * [backup-simplify]: Simplify 1 into 1 0.347 * [backup-simplify]: Simplify (/ 1 1) into 1 0.348 * [backup-simplify]: Simplify (* 0.5 1) into 0.5 0.348 * [backup-simplify]: Simplify 0.5 into 0.5 0.348 * [backup-simplify]: Simplify 0.5 into 0.5 0.348 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0 0.348 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 (/ 1 y))) into 0 0.349 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0 0.349 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0 0.349 * [backup-simplify]: Simplify (+ 0 0) into 0 0.349 * [taylor]: Taking taylor expansion of 0 in y 0.349 * [backup-simplify]: Simplify 0 into 0 0.350 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0 0.350 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0 0.350 * [backup-simplify]: Simplify 0 into 0 0.350 * [backup-simplify]: Simplify 0 into 0 0.351 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0 0.351 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 (/ 1 y)))) into 0 0.352 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0 0.352 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0 0.352 * [backup-simplify]: Simplify (+ 0 0) into 0 0.353 * [taylor]: Taking taylor expansion of 0 in y 0.353 * [backup-simplify]: Simplify 0 into 0 0.353 * [backup-simplify]: Simplify 0 into 0 0.353 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0 0.354 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0 0.354 * [backup-simplify]: Simplify 0 into 0 0.354 * [backup-simplify]: Simplify 0 into 0 0.354 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0 0.355 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 y))))) into 0 0.355 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0 0.356 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0 0.356 * [backup-simplify]: Simplify (+ 0 0) into 0 0.356 * [taylor]: Taking taylor expansion of 0 in y 0.356 * [backup-simplify]: Simplify 0 into 0 0.356 * [backup-simplify]: Simplify 0 into 0 0.356 * [backup-simplify]: Simplify (+ (* 0.5 (* 1 (/ 1 (/ 1 x)))) (* 0.5 (* (/ 1 (/ 1 y)) 1))) into (+ (* 0.5 x) (* 0.5 y)) 0.357 * [backup-simplify]: Simplify (+ (/ 1 (- x)) (/ (- (/ 1 (- y)) (/ 1 (- x))) 2.0)) into (- (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))) 0.357 * [approximate]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))) in (x y) around 0 0.357 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))) in y 0.357 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in y 0.357 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y 0.357 * [taylor]: Taking taylor expansion of 0.5 in y 0.357 * [backup-simplify]: Simplify 0.5 into 0.5 0.357 * [taylor]: Taking taylor expansion of (/ 1 y) in y 0.357 * [taylor]: Taking taylor expansion of y in y 0.357 * [backup-simplify]: Simplify 0 into 0 0.357 * [backup-simplify]: Simplify 1 into 1 0.357 * [backup-simplify]: Simplify (/ 1 1) into 1 0.357 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y 0.357 * [taylor]: Taking taylor expansion of 0.5 in y 0.357 * [backup-simplify]: Simplify 0.5 into 0.5 0.357 * [taylor]: Taking taylor expansion of (/ 1 x) in y 0.357 * [taylor]: Taking taylor expansion of x in y 0.357 * [backup-simplify]: Simplify x into x 0.357 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x) 0.357 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))) in x 0.357 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in x 0.357 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x 0.357 * [taylor]: Taking taylor expansion of 0.5 in x 0.357 * [backup-simplify]: Simplify 0.5 into 0.5 0.357 * [taylor]: Taking taylor expansion of (/ 1 y) in x 0.357 * [taylor]: Taking taylor expansion of y in x 0.357 * [backup-simplify]: Simplify y into y 0.357 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y) 0.357 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x 0.357 * [taylor]: Taking taylor expansion of 0.5 in x 0.357 * [backup-simplify]: Simplify 0.5 into 0.5 0.357 * [taylor]: Taking taylor expansion of (/ 1 x) in x 0.357 * [taylor]: Taking taylor expansion of x in x 0.357 * [backup-simplify]: Simplify 0 into 0 0.357 * [backup-simplify]: Simplify 1 into 1 0.358 * [backup-simplify]: Simplify (/ 1 1) into 1 0.358 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))) in x 0.358 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in x 0.358 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x 0.358 * [taylor]: Taking taylor expansion of 0.5 in x 0.358 * [backup-simplify]: Simplify 0.5 into 0.5 0.358 * [taylor]: Taking taylor expansion of (/ 1 y) in x 0.358 * [taylor]: Taking taylor expansion of y in x 0.358 * [backup-simplify]: Simplify y into y 0.358 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y) 0.358 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x 0.358 * [taylor]: Taking taylor expansion of 0.5 in x 0.358 * [backup-simplify]: Simplify 0.5 into 0.5 0.358 * [taylor]: Taking taylor expansion of (/ 1 x) in x 0.358 * [taylor]: Taking taylor expansion of x in x 0.358 * [backup-simplify]: Simplify 0 into 0 0.358 * [backup-simplify]: Simplify 1 into 1 0.358 * [backup-simplify]: Simplify (/ 1 1) into 1 0.359 * [backup-simplify]: Simplify (* 0.5 1) into 0.5 0.359 * [backup-simplify]: Simplify (+ 0 0.5) into 0.5 0.359 * [backup-simplify]: Simplify (- 0.5) into (- 0.5) 0.359 * [taylor]: Taking taylor expansion of (- 0.5) in y 0.359 * [taylor]: Taking taylor expansion of 0.5 in y 0.359 * [backup-simplify]: Simplify 0.5 into 0.5 0.359 * [backup-simplify]: Simplify (* 0.5 (/ 1 y)) into (/ 0.5 y) 0.360 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0 0.360 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0 0.360 * [backup-simplify]: Simplify (+ (/ 0.5 y) 0) into (* 0.5 (/ 1 y)) 0.360 * [backup-simplify]: Simplify (- (* 0.5 (/ 1 y))) into (- (* 0.5 (/ 1 y))) 0.360 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 y))) in y 0.360 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y 0.360 * [taylor]: Taking taylor expansion of 0.5 in y 0.360 * [backup-simplify]: Simplify 0.5 into 0.5 0.360 * [taylor]: Taking taylor expansion of (/ 1 y) in y 0.360 * [taylor]: Taking taylor expansion of y in y 0.360 * [backup-simplify]: Simplify 0 into 0 0.360 * [backup-simplify]: Simplify 1 into 1 0.361 * [backup-simplify]: Simplify (/ 1 1) into 1 0.361 * [backup-simplify]: Simplify (* 0.5 1) into 0.5 0.361 * [backup-simplify]: Simplify (- 0.5) into (- 0.5) 0.361 * [backup-simplify]: Simplify (- 0.5) into (- 0.5) 0.362 * [backup-simplify]: Simplify (- 0.5) into (- 0.5) 0.362 * [backup-simplify]: Simplify (- 0.5) into (- 0.5) 0.362 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0 0.362 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 (/ 1 y))) into 0 0.363 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0 0.364 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0 0.364 * [backup-simplify]: Simplify (+ 0 0) into 0 0.364 * [backup-simplify]: Simplify (- 0) into 0 0.364 * [taylor]: Taking taylor expansion of 0 in y 0.364 * [backup-simplify]: Simplify 0 into 0 0.365 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0 0.366 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0 0.366 * [backup-simplify]: Simplify (- 0) into 0 0.366 * [backup-simplify]: Simplify 0 into 0 0.367 * [backup-simplify]: Simplify (- 0) into 0 0.367 * [backup-simplify]: Simplify 0 into 0 0.367 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0 0.368 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 (/ 1 y)))) into 0 0.369 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0 0.370 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0 0.370 * [backup-simplify]: Simplify (+ 0 0) into 0 0.370 * [backup-simplify]: Simplify (- 0) into 0 0.371 * [taylor]: Taking taylor expansion of 0 in y 0.371 * [backup-simplify]: Simplify 0 into 0 0.371 * [backup-simplify]: Simplify 0 into 0 0.371 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0 0.373 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0 0.373 * [backup-simplify]: Simplify (- 0) into 0 0.373 * [backup-simplify]: Simplify 0 into 0 0.374 * [backup-simplify]: Simplify (- 0) into 0 0.374 * [backup-simplify]: Simplify 0 into 0 0.374 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0 0.375 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 y))))) into 0 0.376 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0 0.377 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0 0.378 * [backup-simplify]: Simplify (+ 0 0) into 0 0.378 * [backup-simplify]: Simplify (- 0) into 0 0.379 * [taylor]: Taking taylor expansion of 0 in y 0.379 * [backup-simplify]: Simplify 0 into 0 0.379 * [backup-simplify]: Simplify 0 into 0 0.380 * [backup-simplify]: Simplify (+ (* (- 0.5) (* 1 (/ 1 (/ 1 (- x))))) (* (- 0.5) (* (/ 1 (/ 1 (- y))) 1))) into (+ (* 0.5 x) (* 0.5 y)) 0.380 * * * [progress]: simplifying candidates 0.380 * [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)) 0.381 * * [simplify]: Extracting # 0 : cost 0 0.381 * * [simplify]: Extracting # 1 : cost 0 0.381 * * [simplify]: Extracting # 2 : cost 0 0.381 * * [simplify]: Extracting # 3 : cost 0 0.382 * * [simplify]: Extracting # 4 : cost 0 0.382 * * [simplify]: Extracting # 5 : cost 0 0.382 * * [simplify]: Extracting # 6 : cost 0 0.382 * * [simplify]: iteration 0 : 35 enodes (cost 194 ) 0.394 * * [simplify]: Extracting # 0 : cost 0 0.395 * * [simplify]: Extracting # 1 : cost 0 0.395 * * [simplify]: Extracting # 2 : cost 0 0.395 * * [simplify]: Extracting # 3 : cost 0 0.395 * * [simplify]: Extracting # 4 : cost 0 0.395 * * [simplify]: iteration 1 : 98 enodes (cost 180 ) 0.422 * * [simplify]: Extracting # 0 : cost 0 0.422 * * [simplify]: Extracting # 1 : cost 0 0.422 * * [simplify]: Extracting # 2 : cost 0 0.423 * * [simplify]: Extracting # 3 : cost 0 0.423 * * [simplify]: Extracting # 4 : cost 0 0.424 * * [simplify]: iteration 2 : 263 enodes (cost 166 ) 0.538 * * [simplify]: Extracting # 0 : cost 0 0.539 * * [simplify]: Extracting # 1 : cost 0 0.540 * * [simplify]: Extracting # 2 : cost 0 0.541 * * [simplify]: Extracting # 3 : cost 0 0.542 * * [simplify]: iteration 3 : 750 enodes (cost 166 ) 1.541 * * [simplify]: Extracting # 0 : cost 0 1.546 * * [simplify]: Extracting # 1 : cost 0 1.552 * * [simplify]: Extracting # 2 : cost 0 1.556 * * [simplify]: Extracting # 3 : cost 0 1.562 * * [simplify]: Extracting # 4 : cost 0 1.569 * * [simplify]: iteration 4 : 3539 enodes (cost 165 ) 3.240 * * [simplify]: Extracting # 0 : cost 0 3.249 * * [simplify]: Extracting # 1 : cost 0 3.265 * * [simplify]: iteration done: 5000 enodes (cost 165 ) 3.266 * [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))) (fma (/ (- x y) 2.0) (/ (- y x) 2.0) (* x x)) (- 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)) 3.266 * * * [progress]: adding candidates to table 3.316 * * [progress]: iteration 2 / 4 3.316 * * * [progress]: picking best candidate 3.318 * * * * [pick]: Picked # 3.318 * * * [progress]: localizing error 3.326 * * * [progress]: generating rewritten candidates 3.326 * * * [progress]: generating series expansions 3.326 * * * [progress]: simplifying candidates 3.326 * [simplify]: Simplifying: 3.326 * * [simplify]: Extracting # 0 : cost 0 3.326 * * [simplify]: iteration 0 : 0 enodes (cost 0 ) 3.326 * * [simplify]: Extracting # 0 : cost 0 3.327 * * [simplify]: iteration done: 0 enodes (cost 0 ) 3.327 * [simplify]: Simplified to: 3.327 * * * [progress]: adding candidates to table 3.332 * [progress]: [Phase 3 of 3] Extracting. 3.334 * [simplify]: Simplifying: (* 0.5 (+ x y)) 3.334 * * [simplify]: Extracting # 0 : cost 0 3.334 * * [simplify]: Extracting # 1 : cost 0 3.334 * * [simplify]: Extracting # 2 : cost 0 3.334 * * [simplify]: Extracting # 3 : cost 0 3.335 * * [simplify]: Extracting # 4 : cost 0 3.335 * * [simplify]: iteration 0 : 5 enodes (cost 5 ) 3.335 * * [simplify]: Extracting # 0 : cost 0 3.335 * * [simplify]: iteration 1 : 7 enodes (cost 5 ) 3.336 * * [simplify]: Extracting # 0 : cost 0 3.336 * * [simplify]: iteration done: 7 enodes (cost 5 ) 3.336 * [simplify]: Simplified to: (* 0.5 (+ x y)) 4.062 * [regime-testing]: Baseline error score: 0 4.065 * [regime-testing]: Oracle error score: 0 4.065 * [regime-testing]: End program error score: 0 4.086 * [regime-testing]: Target error score: 0