77.531 * [progress]: [Phase 1 of 3] Setting up. 0.001 * * * [progress]: [1/2] Preparing points 0.022 * * * [progress]: [2/2] Setting up program. 0.024 * [progress]: [Phase 2 of 3] Improving. 0.025 * [simplify]: Simplifying: (+ x (/ (- y x) 2.0)) 0.025 * * [simplify]: Extracting # 0 : cost 0 0.025 * * [simplify]: Extracting # 1 : cost 0 0.025 * * [simplify]: Extracting # 2 : cost 0 0.025 * * [simplify]: Extracting # 3 : cost 0 0.025 * * [simplify]: Extracting # 4 : cost 0 0.025 * * [simplify]: Extracting # 5 : cost 0 0.025 * * [simplify]: iteration 0 : 6 enodes (cost 7 ) 0.026 * * [simplify]: Extracting # 0 : cost 0 0.027 * * [simplify]: Extracting # 1 : cost 0 0.027 * * [simplify]: Extracting # 2 : cost 0 0.027 * * [simplify]: iteration 1 : 12 enodes (cost 7 ) 0.029 * * [simplify]: Extracting # 0 : cost 0 0.029 * * [simplify]: Extracting # 1 : cost 0 0.029 * * [simplify]: Extracting # 2 : cost 0 0.030 * * [simplify]: iteration 2 : 19 enodes (cost 7 ) 0.034 * * [simplify]: Extracting # 0 : cost 0 0.034 * * [simplify]: Extracting # 1 : cost 0 0.034 * * [simplify]: Extracting # 2 : cost 0 0.034 * * [simplify]: iteration 3 : 28 enodes (cost 7 ) 0.041 * * [simplify]: Extracting # 0 : cost 0 0.041 * * [simplify]: Extracting # 1 : cost 0 0.041 * * [simplify]: Extracting # 2 : cost 0 0.041 * * [simplify]: iteration 4 : 39 enodes (cost 7 ) 0.050 * * [simplify]: Extracting # 0 : cost 0 0.050 * * [simplify]: Extracting # 1 : cost 0 0.050 * * [simplify]: Extracting # 2 : cost 0 0.051 * * [simplify]: iteration 5 : 96 enodes (cost 7 ) 0.072 * * [simplify]: Extracting # 0 : cost 0 0.072 * * [simplify]: Extracting # 1 : cost 0 0.073 * * [simplify]: Extracting # 2 : cost 0 0.073 * * [simplify]: iteration 6 : 220 enodes (cost 7 ) 0.131 * * [simplify]: Extracting # 0 : cost 0 0.132 * * [simplify]: Extracting # 1 : cost 0 0.133 * * [simplify]: Extracting # 2 : cost 0 0.134 * * [simplify]: iteration 7 : 607 enodes (cost 7 ) 0.536 * * [simplify]: Extracting # 0 : cost 0 0.538 * * [simplify]: Extracting # 1 : cost 0 0.542 * * [simplify]: Extracting # 2 : cost 0 0.545 * * [simplify]: iteration 8 : 2030 enodes (cost 7 ) 1.192 * * [simplify]: Extracting # 0 : cost 0 1.198 * * [simplify]: Extracting # 1 : cost 0 1.205 * * [simplify]: Extracting # 2 : cost 0 1.211 * * [simplify]: iteration done: 5001 enodes (cost 7 ) 1.212 * [simplify]: Simplified to: (+ x (/ (- y x) 2.0)) 1.212 * * [progress]: iteration 1 / 4 1.212 * * * [progress]: picking best candidate 1.214 * * * * [pick]: Picked # 1.214 * * * [progress]: localizing error 1.222 * * * [progress]: generating rewritten candidates 1.222 * * * * [progress]: [ 1 / 1 ] rewriting at (2) 1.262 * * * [progress]: generating series expansions 1.263 * * * * [progress]: [ 1 / 1 ] generating series at (2) 1.263 * [backup-simplify]: Simplify (+ x (/ (- y x) 2.0)) into (+ (* 0.5 x) (* 0.5 y)) 1.263 * [approximate]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in (x y) around 0 1.263 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in y 1.263 * [taylor]: Taking taylor expansion of (* 0.5 x) in y 1.263 * [taylor]: Taking taylor expansion of 0.5 in y 1.263 * [backup-simplify]: Simplify 0.5 into 0.5 1.263 * [taylor]: Taking taylor expansion of x in y 1.263 * [backup-simplify]: Simplify x into x 1.263 * [taylor]: Taking taylor expansion of (* 0.5 y) in y 1.263 * [taylor]: Taking taylor expansion of 0.5 in y 1.263 * [backup-simplify]: Simplify 0.5 into 0.5 1.263 * [taylor]: Taking taylor expansion of y in y 1.263 * [backup-simplify]: Simplify 0 into 0 1.263 * [backup-simplify]: Simplify 1 into 1 1.263 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in x 1.263 * [taylor]: Taking taylor expansion of (* 0.5 x) in x 1.263 * [taylor]: Taking taylor expansion of 0.5 in x 1.263 * [backup-simplify]: Simplify 0.5 into 0.5 1.263 * [taylor]: Taking taylor expansion of x in x 1.263 * [backup-simplify]: Simplify 0 into 0 1.263 * [backup-simplify]: Simplify 1 into 1 1.263 * [taylor]: Taking taylor expansion of (* 0.5 y) in x 1.263 * [taylor]: Taking taylor expansion of 0.5 in x 1.263 * [backup-simplify]: Simplify 0.5 into 0.5 1.263 * [taylor]: Taking taylor expansion of y in x 1.263 * [backup-simplify]: Simplify y into y 1.263 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in x 1.263 * [taylor]: Taking taylor expansion of (* 0.5 x) in x 1.263 * [taylor]: Taking taylor expansion of 0.5 in x 1.263 * [backup-simplify]: Simplify 0.5 into 0.5 1.263 * [taylor]: Taking taylor expansion of x in x 1.263 * [backup-simplify]: Simplify 0 into 0 1.263 * [backup-simplify]: Simplify 1 into 1 1.263 * [taylor]: Taking taylor expansion of (* 0.5 y) in x 1.264 * [taylor]: Taking taylor expansion of 0.5 in x 1.264 * [backup-simplify]: Simplify 0.5 into 0.5 1.264 * [taylor]: Taking taylor expansion of y in x 1.264 * [backup-simplify]: Simplify y into y 1.264 * [backup-simplify]: Simplify (* 0.5 0) into 0 1.264 * [backup-simplify]: Simplify (* 0.5 y) into (* 0.5 y) 1.264 * [backup-simplify]: Simplify (+ 0 (* 0.5 y)) into (* 0.5 y) 1.264 * [taylor]: Taking taylor expansion of (* 0.5 y) in y 1.264 * [taylor]: Taking taylor expansion of 0.5 in y 1.264 * [backup-simplify]: Simplify 0.5 into 0.5 1.264 * [taylor]: Taking taylor expansion of y in y 1.264 * [backup-simplify]: Simplify 0 into 0 1.265 * [backup-simplify]: Simplify 1 into 1 1.265 * [backup-simplify]: Simplify (* 0.5 0) into 0 1.265 * [backup-simplify]: Simplify 0 into 0 1.266 * [backup-simplify]: Simplify (+ (* 0.5 1) (* 0 0)) into 0.5 1.266 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 y)) into 0 1.267 * [backup-simplify]: Simplify (+ 0.5 0) into 0.5 1.267 * [taylor]: Taking taylor expansion of 0.5 in y 1.267 * [backup-simplify]: Simplify 0.5 into 0.5 1.267 * [backup-simplify]: Simplify 0.5 into 0.5 1.268 * [backup-simplify]: Simplify (+ (* 0.5 1) (* 0 0)) into 0.5 1.268 * [backup-simplify]: Simplify 0.5 into 0.5 1.269 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 1) (* 0 0))) into 0 1.269 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 y))) into 0 1.270 * [backup-simplify]: Simplify (+ 0 0) into 0 1.270 * [taylor]: Taking taylor expansion of 0 in y 1.270 * [backup-simplify]: Simplify 0 into 0 1.270 * [backup-simplify]: Simplify 0 into 0 1.270 * [backup-simplify]: Simplify 0 into 0 1.271 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 1) (* 0 0))) into 0 1.271 * [backup-simplify]: Simplify 0 into 0 1.271 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0 1.272 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 y)))) into 0 1.273 * [backup-simplify]: Simplify (+ 0 0) into 0 1.273 * [taylor]: Taking taylor expansion of 0 in y 1.273 * [backup-simplify]: Simplify 0 into 0 1.273 * [backup-simplify]: Simplify 0 into 0 1.273 * [backup-simplify]: Simplify 0 into 0 1.273 * [backup-simplify]: Simplify 0 into 0 1.273 * [backup-simplify]: Simplify (+ (* 0.5 (* y 1)) (* 0.5 (* 1 x))) into (+ (* 0.5 x) (* 0.5 y)) 1.273 * [backup-simplify]: Simplify (+ (/ 1 x) (/ (- (/ 1 y) (/ 1 x)) 2.0)) into (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) 1.273 * [approximate]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in (x y) around 0 1.273 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in y 1.273 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y 1.273 * [taylor]: Taking taylor expansion of 0.5 in y 1.273 * [backup-simplify]: Simplify 0.5 into 0.5 1.273 * [taylor]: Taking taylor expansion of (/ 1 y) in y 1.273 * [taylor]: Taking taylor expansion of y in y 1.273 * [backup-simplify]: Simplify 0 into 0 1.273 * [backup-simplify]: Simplify 1 into 1 1.274 * [backup-simplify]: Simplify (/ 1 1) into 1 1.274 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y 1.274 * [taylor]: Taking taylor expansion of 0.5 in y 1.274 * [backup-simplify]: Simplify 0.5 into 0.5 1.274 * [taylor]: Taking taylor expansion of (/ 1 x) in y 1.274 * [taylor]: Taking taylor expansion of x in y 1.274 * [backup-simplify]: Simplify x into x 1.274 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x) 1.274 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in x 1.274 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x 1.274 * [taylor]: Taking taylor expansion of 0.5 in x 1.274 * [backup-simplify]: Simplify 0.5 into 0.5 1.274 * [taylor]: Taking taylor expansion of (/ 1 y) in x 1.274 * [taylor]: Taking taylor expansion of y in x 1.274 * [backup-simplify]: Simplify y into y 1.274 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y) 1.274 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x 1.274 * [taylor]: Taking taylor expansion of 0.5 in x 1.274 * [backup-simplify]: Simplify 0.5 into 0.5 1.274 * [taylor]: Taking taylor expansion of (/ 1 x) in x 1.274 * [taylor]: Taking taylor expansion of x in x 1.274 * [backup-simplify]: Simplify 0 into 0 1.274 * [backup-simplify]: Simplify 1 into 1 1.274 * [backup-simplify]: Simplify (/ 1 1) into 1 1.275 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in x 1.275 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x 1.275 * [taylor]: Taking taylor expansion of 0.5 in x 1.275 * [backup-simplify]: Simplify 0.5 into 0.5 1.275 * [taylor]: Taking taylor expansion of (/ 1 y) in x 1.275 * [taylor]: Taking taylor expansion of y in x 1.275 * [backup-simplify]: Simplify y into y 1.275 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y) 1.275 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x 1.275 * [taylor]: Taking taylor expansion of 0.5 in x 1.275 * [backup-simplify]: Simplify 0.5 into 0.5 1.275 * [taylor]: Taking taylor expansion of (/ 1 x) in x 1.275 * [taylor]: Taking taylor expansion of x in x 1.275 * [backup-simplify]: Simplify 0 into 0 1.275 * [backup-simplify]: Simplify 1 into 1 1.275 * [backup-simplify]: Simplify (/ 1 1) into 1 1.276 * [backup-simplify]: Simplify (* 0.5 1) into 0.5 1.276 * [backup-simplify]: Simplify (+ 0 0.5) into 0.5 1.276 * [taylor]: Taking taylor expansion of 0.5 in y 1.276 * [backup-simplify]: Simplify 0.5 into 0.5 1.276 * [backup-simplify]: Simplify (* 0.5 (/ 1 y)) into (/ 0.5 y) 1.277 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0 1.277 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0 1.277 * [backup-simplify]: Simplify (+ (/ 0.5 y) 0) into (* 0.5 (/ 1 y)) 1.277 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y 1.277 * [taylor]: Taking taylor expansion of 0.5 in y 1.277 * [backup-simplify]: Simplify 0.5 into 0.5 1.277 * [taylor]: Taking taylor expansion of (/ 1 y) in y 1.277 * [taylor]: Taking taylor expansion of y in y 1.277 * [backup-simplify]: Simplify 0 into 0 1.277 * [backup-simplify]: Simplify 1 into 1 1.278 * [backup-simplify]: Simplify (/ 1 1) into 1 1.278 * [backup-simplify]: Simplify (* 0.5 1) into 0.5 1.278 * [backup-simplify]: Simplify 0.5 into 0.5 1.278 * [backup-simplify]: Simplify 0.5 into 0.5 1.278 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0 1.279 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 (/ 1 y))) into 0 1.279 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0 1.280 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0 1.280 * [backup-simplify]: Simplify (+ 0 0) into 0 1.280 * [taylor]: Taking taylor expansion of 0 in y 1.280 * [backup-simplify]: Simplify 0 into 0 1.281 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0 1.281 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0 1.281 * [backup-simplify]: Simplify 0 into 0 1.281 * [backup-simplify]: Simplify 0 into 0 1.282 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0 1.282 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 (/ 1 y)))) into 0 1.283 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0 1.284 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0 1.284 * [backup-simplify]: Simplify (+ 0 0) into 0 1.284 * [taylor]: Taking taylor expansion of 0 in y 1.284 * [backup-simplify]: Simplify 0 into 0 1.284 * [backup-simplify]: Simplify 0 into 0 1.285 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0 1.286 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0 1.286 * [backup-simplify]: Simplify 0 into 0 1.286 * [backup-simplify]: Simplify 0 into 0 1.286 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0 1.287 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 y))))) into 0 1.288 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0 1.288 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0 1.289 * [backup-simplify]: Simplify (+ 0 0) into 0 1.289 * [taylor]: Taking taylor expansion of 0 in y 1.289 * [backup-simplify]: Simplify 0 into 0 1.289 * [backup-simplify]: Simplify 0 into 0 1.289 * [backup-simplify]: Simplify (+ (* 0.5 (* 1 (/ 1 (/ 1 x)))) (* 0.5 (* (/ 1 (/ 1 y)) 1))) into (+ (* 0.5 x) (* 0.5 y)) 1.289 * [backup-simplify]: Simplify (+ (/ 1 (- x)) (/ (- (/ 1 (- y)) (/ 1 (- x))) 2.0)) into (- (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))) 1.289 * [approximate]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))) in (x y) around 0 1.289 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))) in y 1.289 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in y 1.289 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y 1.289 * [taylor]: Taking taylor expansion of 0.5 in y 1.290 * [backup-simplify]: Simplify 0.5 into 0.5 1.290 * [taylor]: Taking taylor expansion of (/ 1 y) in y 1.290 * [taylor]: Taking taylor expansion of y in y 1.290 * [backup-simplify]: Simplify 0 into 0 1.290 * [backup-simplify]: Simplify 1 into 1 1.290 * [backup-simplify]: Simplify (/ 1 1) into 1 1.290 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y 1.290 * [taylor]: Taking taylor expansion of 0.5 in y 1.290 * [backup-simplify]: Simplify 0.5 into 0.5 1.290 * [taylor]: Taking taylor expansion of (/ 1 x) in y 1.290 * [taylor]: Taking taylor expansion of x in y 1.290 * [backup-simplify]: Simplify x into x 1.290 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x) 1.290 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))) in x 1.290 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in x 1.290 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x 1.290 * [taylor]: Taking taylor expansion of 0.5 in x 1.290 * [backup-simplify]: Simplify 0.5 into 0.5 1.290 * [taylor]: Taking taylor expansion of (/ 1 y) in x 1.290 * [taylor]: Taking taylor expansion of y in x 1.290 * [backup-simplify]: Simplify y into y 1.290 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y) 1.290 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x 1.290 * [taylor]: Taking taylor expansion of 0.5 in x 1.290 * [backup-simplify]: Simplify 0.5 into 0.5 1.290 * [taylor]: Taking taylor expansion of (/ 1 x) in x 1.291 * [taylor]: Taking taylor expansion of x in x 1.291 * [backup-simplify]: Simplify 0 into 0 1.291 * [backup-simplify]: Simplify 1 into 1 1.291 * [backup-simplify]: Simplify (/ 1 1) into 1 1.291 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))) in x 1.291 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in x 1.291 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x 1.291 * [taylor]: Taking taylor expansion of 0.5 in x 1.291 * [backup-simplify]: Simplify 0.5 into 0.5 1.291 * [taylor]: Taking taylor expansion of (/ 1 y) in x 1.291 * [taylor]: Taking taylor expansion of y in x 1.291 * [backup-simplify]: Simplify y into y 1.291 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y) 1.291 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x 1.291 * [taylor]: Taking taylor expansion of 0.5 in x 1.291 * [backup-simplify]: Simplify 0.5 into 0.5 1.291 * [taylor]: Taking taylor expansion of (/ 1 x) in x 1.291 * [taylor]: Taking taylor expansion of x in x 1.291 * [backup-simplify]: Simplify 0 into 0 1.291 * [backup-simplify]: Simplify 1 into 1 1.292 * [backup-simplify]: Simplify (/ 1 1) into 1 1.292 * [backup-simplify]: Simplify (* 0.5 1) into 0.5 1.292 * [backup-simplify]: Simplify (+ 0 0.5) into 0.5 1.293 * [backup-simplify]: Simplify (- 0.5) into (- 0.5) 1.293 * [taylor]: Taking taylor expansion of (- 0.5) in y 1.293 * [taylor]: Taking taylor expansion of 0.5 in y 1.293 * [backup-simplify]: Simplify 0.5 into 0.5 1.293 * [backup-simplify]: Simplify (* 0.5 (/ 1 y)) into (/ 0.5 y) 1.293 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0 1.294 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0 1.294 * [backup-simplify]: Simplify (+ (/ 0.5 y) 0) into (* 0.5 (/ 1 y)) 1.294 * [backup-simplify]: Simplify (- (* 0.5 (/ 1 y))) into (- (* 0.5 (/ 1 y))) 1.294 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 y))) in y 1.294 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y 1.294 * [taylor]: Taking taylor expansion of 0.5 in y 1.294 * [backup-simplify]: Simplify 0.5 into 0.5 1.294 * [taylor]: Taking taylor expansion of (/ 1 y) in y 1.294 * [taylor]: Taking taylor expansion of y in y 1.294 * [backup-simplify]: Simplify 0 into 0 1.294 * [backup-simplify]: Simplify 1 into 1 1.295 * [backup-simplify]: Simplify (/ 1 1) into 1 1.295 * [backup-simplify]: Simplify (* 0.5 1) into 0.5 1.295 * [backup-simplify]: Simplify (- 0.5) into (- 0.5) 1.295 * [backup-simplify]: Simplify (- 0.5) into (- 0.5) 1.296 * [backup-simplify]: Simplify (- 0.5) into (- 0.5) 1.296 * [backup-simplify]: Simplify (- 0.5) into (- 0.5) 1.296 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0 1.297 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 (/ 1 y))) into 0 1.297 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0 1.298 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0 1.298 * [backup-simplify]: Simplify (+ 0 0) into 0 1.299 * [backup-simplify]: Simplify (- 0) into 0 1.299 * [taylor]: Taking taylor expansion of 0 in y 1.299 * [backup-simplify]: Simplify 0 into 0 1.299 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0 1.300 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0 1.300 * [backup-simplify]: Simplify (- 0) into 0 1.300 * [backup-simplify]: Simplify 0 into 0 1.300 * [backup-simplify]: Simplify (- 0) into 0 1.300 * [backup-simplify]: Simplify 0 into 0 1.301 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0 1.301 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 (/ 1 y)))) into 0 1.302 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0 1.303 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0 1.303 * [backup-simplify]: Simplify (+ 0 0) into 0 1.303 * [backup-simplify]: Simplify (- 0) into 0 1.303 * [taylor]: Taking taylor expansion of 0 in y 1.303 * [backup-simplify]: Simplify 0 into 0 1.303 * [backup-simplify]: Simplify 0 into 0 1.304 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0 1.305 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0 1.305 * [backup-simplify]: Simplify (- 0) into 0 1.305 * [backup-simplify]: Simplify 0 into 0 1.306 * [backup-simplify]: Simplify (- 0) into 0 1.306 * [backup-simplify]: Simplify 0 into 0 1.306 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0 1.307 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 y))))) into 0 1.307 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0 1.308 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0 1.309 * [backup-simplify]: Simplify (+ 0 0) into 0 1.309 * [backup-simplify]: Simplify (- 0) into 0 1.309 * [taylor]: Taking taylor expansion of 0 in y 1.309 * [backup-simplify]: Simplify 0 into 0 1.309 * [backup-simplify]: Simplify 0 into 0 1.310 * [backup-simplify]: Simplify (+ (* (- 0.5) (* 1 (/ 1 (/ 1 (- x))))) (* (- 0.5) (* (/ 1 (/ 1 (- y))) 1))) into (+ (* 0.5 x) (* 0.5 y)) 1.310 * * * [progress]: simplifying candidates 1.310 * [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)) 1.311 * * [simplify]: Extracting # 0 : cost 0 1.311 * * [simplify]: Extracting # 1 : cost 0 1.311 * * [simplify]: Extracting # 2 : cost 0 1.311 * * [simplify]: Extracting # 3 : cost 0 1.311 * * [simplify]: Extracting # 4 : cost 0 1.311 * * [simplify]: Extracting # 5 : cost 0 1.311 * * [simplify]: Extracting # 6 : cost 0 1.311 * * [simplify]: iteration 0 : 35 enodes (cost 194 ) 1.321 * * [simplify]: Extracting # 0 : cost 0 1.321 * * [simplify]: Extracting # 1 : cost 0 1.322 * * [simplify]: Extracting # 2 : cost 0 1.322 * * [simplify]: Extracting # 3 : cost 0 1.322 * * [simplify]: Extracting # 4 : cost 0 1.322 * * [simplify]: iteration 1 : 98 enodes (cost 180 ) 1.358 * * [simplify]: Extracting # 0 : cost 0 1.358 * * [simplify]: Extracting # 1 : cost 0 1.359 * * [simplify]: Extracting # 2 : cost 0 1.359 * * [simplify]: Extracting # 3 : cost 0 1.359 * * [simplify]: iteration 2 : 269 enodes (cost 166 ) 1.471 * * [simplify]: Extracting # 0 : cost 0 1.472 * * [simplify]: Extracting # 1 : cost 0 1.473 * * [simplify]: Extracting # 2 : cost 0 1.474 * * [simplify]: Extracting # 3 : cost 0 1.475 * * [simplify]: Extracting # 4 : cost 0 1.476 * * [simplify]: iteration 3 : 872 enodes (cost 166 ) 1.872 * * [simplify]: Extracting # 0 : cost 0 1.878 * * [simplify]: Extracting # 1 : cost 0 1.884 * * [simplify]: Extracting # 2 : cost 0 1.895 * * [simplify]: Extracting # 3 : cost 0 1.901 * * [simplify]: Extracting # 4 : cost 0 1.908 * * [simplify]: Extracting # 5 : cost 0 1.916 * * [simplify]: iteration done: 5000 enodes (cost 166 ) 1.916 * [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)) 1.916 * * * [progress]: adding candidates to table 1.965 * * [progress]: iteration 2 / 4 1.966 * * * [progress]: picking best candidate 1.967 * * * * [pick]: Picked # 1.967 * * * [progress]: localizing error 1.973 * * * [progress]: generating rewritten candidates 1.973 * * * [progress]: generating series expansions 1.973 * * * [progress]: simplifying candidates 1.973 * [simplify]: Simplifying: 1.973 * * [simplify]: Extracting # 0 : cost 0 1.973 * * [simplify]: iteration 0 : 0 enodes (cost 0 ) 1.973 * * [simplify]: Extracting # 0 : cost 0 1.973 * * [simplify]: iteration done: 0 enodes (cost 0 ) 1.974 * [simplify]: Simplified to: 1.974 * * * [progress]: adding candidates to table 1.974 * [progress]: [Phase 3 of 3] Extracting. 1.975 * [simplify]: Simplifying: (* 0.5 (+ x y)) 1.975 * * [simplify]: Extracting # 0 : cost 0 1.975 * * [simplify]: Extracting # 1 : cost 0 1.975 * * [simplify]: Extracting # 2 : cost 0 1.976 * * [simplify]: Extracting # 3 : cost 0 1.976 * * [simplify]: Extracting # 4 : cost 0 1.976 * * [simplify]: iteration 0 : 5 enodes (cost 5 ) 1.976 * * [simplify]: Extracting # 0 : cost 0 1.976 * * [simplify]: iteration 1 : 7 enodes (cost 5 ) 1.976 * * [simplify]: Extracting # 0 : cost 0 1.976 * * [simplify]: iteration done: 7 enodes (cost 5 ) 1.976 * [simplify]: Simplified to: (* 0.5 (+ x y)) 2.645 * [regime-testing]: Baseline error score: 0 2.647 * [regime-testing]: Oracle error score: 0 2.647 * [regime-testing]: End program error score: 0 2.668 * [regime-testing]: Target error score: 0