1.030 * [progress]: [Phase 1 of 3] Setting up. 0.004 * * * [progress]: [1/2] Preparing points 0.105 * * * [progress]: [2/2] Setting up program. 0.122 * [progress]: [Phase 2 of 3] Improving. 0.122 * * * * [progress]: [ 1 / 1 ] simplifiying candidate # 0.125 * [simplify]: Simplifying: (* 0.5 (- (* x x) y)) 0.126 * * [simplify]: iteration 0: 6 enodes 0.134 * * [simplify]: iteration 1: 9 enodes 0.141 * * [simplify]: iteration 2: 16 enodes 0.154 * * [simplify]: iteration 3: 26 enodes 0.220 * * [simplify]: iteration 4: 31 enodes 0.254 * * [simplify]: iteration complete: 31 enodes 0.255 * * [simplify]: Extracting #0: cost 1 inf + 0 0.255 * * [simplify]: Extracting #1: cost 6 inf + 0 0.256 * * [simplify]: Extracting #2: cost 11 inf + 1 0.256 * * [simplify]: Extracting #3: cost 6 inf + 128 0.256 * * [simplify]: Extracting #4: cost 0 inf + 579 0.257 * [simplify]: Simplified to: (* (- (* x x) y) 0.5) 0.261 * * [progress]: iteration 1 / 4 0.261 * * * [progress]: picking best candidate 0.277 * * * * [pick]: Picked # 0.277 * * * [progress]: localizing error 0.310 * * * [progress]: generating rewritten candidates 0.310 * * * * [progress]: [ 1 / 1 ] rewriting at (2 2) 0.357 * * * [progress]: generating series expansions 0.357 * * * * [progress]: [ 1 / 1 ] generating series at (2 2) 0.385 * [backup-simplify]: Simplify (- (* x x) y) into (- (pow x 2) y) 0.385 * [approximate]: Taking taylor expansion of (- (pow x 2) y) in (x y) around 0 0.386 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in y 0.386 * [taylor]: Taking taylor expansion of (pow x 2) in y 0.386 * [taylor]: Taking taylor expansion of x in y 0.387 * [backup-simplify]: Simplify x into x 0.387 * [taylor]: Taking taylor expansion of y in y 0.387 * [backup-simplify]: Simplify 0 into 0 0.387 * [backup-simplify]: Simplify 1 into 1 0.387 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in x 0.387 * [taylor]: Taking taylor expansion of (pow x 2) in x 0.387 * [taylor]: Taking taylor expansion of x in x 0.387 * [backup-simplify]: Simplify 0 into 0 0.387 * [backup-simplify]: Simplify 1 into 1 0.387 * [taylor]: Taking taylor expansion of y in x 0.387 * [backup-simplify]: Simplify y into y 0.388 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in x 0.388 * [taylor]: Taking taylor expansion of (pow x 2) in x 0.388 * [taylor]: Taking taylor expansion of x in x 0.388 * [backup-simplify]: Simplify 0 into 0 0.388 * [backup-simplify]: Simplify 1 into 1 0.388 * [taylor]: Taking taylor expansion of y in x 0.388 * [backup-simplify]: Simplify y into y 0.389 * [backup-simplify]: Simplify (- y) into (- y) 0.389 * [backup-simplify]: Simplify (+ 0 (- y)) into (- y) 0.389 * [taylor]: Taking taylor expansion of (- y) in y 0.389 * [taylor]: Taking taylor expansion of y in y 0.389 * [backup-simplify]: Simplify 0 into 0 0.389 * [backup-simplify]: Simplify 1 into 1 0.389 * [backup-simplify]: Simplify (- 0) into 0 0.389 * [backup-simplify]: Simplify 0 into 0 0.390 * [backup-simplify]: Simplify (- 0) into 0 0.390 * [backup-simplify]: Simplify (+ 0 0) into 0 0.390 * [taylor]: Taking taylor expansion of 0 in y 0.390 * [backup-simplify]: Simplify 0 into 0 0.390 * [backup-simplify]: Simplify 0 into 0 0.391 * [backup-simplify]: Simplify (- 1) into -1 0.391 * [backup-simplify]: Simplify -1 into -1 0.391 * [backup-simplify]: Simplify (* 1 1) into 1 0.391 * [backup-simplify]: Simplify (- 0) into 0 0.392 * [backup-simplify]: Simplify (+ 1 0) into 1 0.392 * [taylor]: Taking taylor expansion of 1 in y 0.392 * [backup-simplify]: Simplify 1 into 1 0.392 * [backup-simplify]: Simplify 1 into 1 0.392 * [backup-simplify]: Simplify 0 into 0 0.392 * [backup-simplify]: Simplify (- 0) into 0 0.392 * [backup-simplify]: Simplify 0 into 0 0.392 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0 0.393 * [backup-simplify]: Simplify (- 0) into 0 0.393 * [backup-simplify]: Simplify (+ 0 0) into 0 0.393 * [taylor]: Taking taylor expansion of 0 in y 0.393 * [backup-simplify]: Simplify 0 into 0 0.393 * [backup-simplify]: Simplify 0 into 0 0.393 * [backup-simplify]: Simplify 0 into 0 0.393 * [backup-simplify]: Simplify 0 into 0 0.393 * [backup-simplify]: Simplify (- 0) into 0 0.393 * [backup-simplify]: Simplify 0 into 0 0.394 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 x) 2)) (* -1 (* y 1))) into (- (pow x 2) y) 0.394 * [backup-simplify]: Simplify (- (* (/ 1 x) (/ 1 x)) (/ 1 y)) into (- (/ 1 (pow x 2)) (/ 1 y)) 0.394 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in (x y) around 0 0.395 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in y 0.395 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y 0.395 * [taylor]: Taking taylor expansion of (pow x 2) in y 0.395 * [taylor]: Taking taylor expansion of x in y 0.395 * [backup-simplify]: Simplify x into x 0.395 * [backup-simplify]: Simplify (* x x) into (pow x 2) 0.396 * [backup-simplify]: Simplify (/ 1 (pow x 2)) into (/ 1 (pow x 2)) 0.396 * [taylor]: Taking taylor expansion of (/ 1 y) in y 0.396 * [taylor]: Taking taylor expansion of y in y 0.396 * [backup-simplify]: Simplify 0 into 0 0.396 * [backup-simplify]: Simplify 1 into 1 0.397 * [backup-simplify]: Simplify (/ 1 1) into 1 0.397 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x 0.397 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x 0.397 * [taylor]: Taking taylor expansion of (pow x 2) in x 0.397 * [taylor]: Taking taylor expansion of x in x 0.397 * [backup-simplify]: Simplify 0 into 0 0.397 * [backup-simplify]: Simplify 1 into 1 0.397 * [backup-simplify]: Simplify (* 1 1) into 1 0.397 * [backup-simplify]: Simplify (/ 1 1) into 1 0.397 * [taylor]: Taking taylor expansion of (/ 1 y) in x 0.397 * [taylor]: Taking taylor expansion of y in x 0.397 * [backup-simplify]: Simplify y into y 0.397 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y) 0.397 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x 0.397 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x 0.397 * [taylor]: Taking taylor expansion of (pow x 2) in x 0.397 * [taylor]: Taking taylor expansion of x in x 0.398 * [backup-simplify]: Simplify 0 into 0 0.398 * [backup-simplify]: Simplify 1 into 1 0.398 * [backup-simplify]: Simplify (* 1 1) into 1 0.398 * [backup-simplify]: Simplify (/ 1 1) into 1 0.398 * [taylor]: Taking taylor expansion of (/ 1 y) in x 0.398 * [taylor]: Taking taylor expansion of y in x 0.398 * [backup-simplify]: Simplify y into y 0.398 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y) 0.398 * [backup-simplify]: Simplify (+ 1 0) into 1 0.399 * [taylor]: Taking taylor expansion of 1 in y 0.399 * [backup-simplify]: Simplify 1 into 1 0.399 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0 0.400 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0 0.400 * [backup-simplify]: Simplify (+ 0 0) into 0 0.400 * [taylor]: Taking taylor expansion of 0 in y 0.400 * [backup-simplify]: Simplify 0 into 0 0.400 * [backup-simplify]: Simplify 1 into 1 0.400 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0 0.401 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0 0.401 * [backup-simplify]: Simplify (- (/ 1 y)) into (- (/ 1 y)) 0.401 * [backup-simplify]: Simplify (+ 0 (- (/ 1 y))) into (- (/ 1 y)) 0.401 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in y 0.401 * [taylor]: Taking taylor expansion of (/ 1 y) in y 0.401 * [taylor]: Taking taylor expansion of y in y 0.401 * [backup-simplify]: Simplify 0 into 0 0.401 * [backup-simplify]: Simplify 1 into 1 0.402 * [backup-simplify]: Simplify (/ 1 1) into 1 0.402 * [backup-simplify]: Simplify (- 1) into -1 0.402 * [backup-simplify]: Simplify -1 into -1 0.402 * [backup-simplify]: Simplify 0 into 0 0.402 * [backup-simplify]: Simplify 0 into 0 0.403 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0 0.403 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0 0.403 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0 0.404 * [backup-simplify]: Simplify (- 0) into 0 0.404 * [backup-simplify]: Simplify (+ 0 0) into 0 0.404 * [taylor]: Taking taylor expansion of 0 in y 0.404 * [backup-simplify]: Simplify 0 into 0 0.404 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0 0.405 * [backup-simplify]: Simplify (- 0) into 0 0.405 * [backup-simplify]: Simplify 0 into 0 0.405 * [backup-simplify]: Simplify 0 into 0 0.405 * [backup-simplify]: Simplify 0 into 0 0.406 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0 0.406 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0 0.407 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0 0.407 * [backup-simplify]: Simplify (- 0) into 0 0.407 * [backup-simplify]: Simplify (+ 0 0) into 0 0.407 * [taylor]: Taking taylor expansion of 0 in y 0.407 * [backup-simplify]: Simplify 0 into 0 0.407 * [backup-simplify]: Simplify 0 into 0 0.408 * [backup-simplify]: Simplify (+ (* -1 (* (/ 1 (/ 1 y)) 1)) (* 1 (pow (* 1 (/ 1 (/ 1 x))) 2))) into (- (pow x 2) y) 0.408 * [backup-simplify]: Simplify (- (* (/ 1 (- x)) (/ 1 (- x))) (/ 1 (- y))) into (+ (/ 1 (pow x 2)) (/ 1 y)) 0.408 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in (x y) around 0 0.408 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in y 0.408 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y 0.408 * [taylor]: Taking taylor expansion of (pow x 2) in y 0.408 * [taylor]: Taking taylor expansion of x in y 0.408 * [backup-simplify]: Simplify x into x 0.408 * [backup-simplify]: Simplify (* x x) into (pow x 2) 0.409 * [backup-simplify]: Simplify (/ 1 (pow x 2)) into (/ 1 (pow x 2)) 0.409 * [taylor]: Taking taylor expansion of (/ 1 y) in y 0.409 * [taylor]: Taking taylor expansion of y in y 0.409 * [backup-simplify]: Simplify 0 into 0 0.409 * [backup-simplify]: Simplify 1 into 1 0.409 * [backup-simplify]: Simplify (/ 1 1) into 1 0.409 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x 0.409 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x 0.409 * [taylor]: Taking taylor expansion of (pow x 2) in x 0.409 * [taylor]: Taking taylor expansion of x in x 0.409 * [backup-simplify]: Simplify 0 into 0 0.409 * [backup-simplify]: Simplify 1 into 1 0.409 * [backup-simplify]: Simplify (* 1 1) into 1 0.410 * [backup-simplify]: Simplify (/ 1 1) into 1 0.410 * [taylor]: Taking taylor expansion of (/ 1 y) in x 0.410 * [taylor]: Taking taylor expansion of y in x 0.410 * [backup-simplify]: Simplify y into y 0.410 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y) 0.410 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x 0.410 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x 0.410 * [taylor]: Taking taylor expansion of (pow x 2) in x 0.410 * [taylor]: Taking taylor expansion of x in x 0.410 * [backup-simplify]: Simplify 0 into 0 0.410 * [backup-simplify]: Simplify 1 into 1 0.410 * [backup-simplify]: Simplify (* 1 1) into 1 0.410 * [backup-simplify]: Simplify (/ 1 1) into 1 0.410 * [taylor]: Taking taylor expansion of (/ 1 y) in x 0.410 * [taylor]: Taking taylor expansion of y in x 0.410 * [backup-simplify]: Simplify y into y 0.410 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y) 0.411 * [backup-simplify]: Simplify (+ 1 0) into 1 0.411 * [taylor]: Taking taylor expansion of 1 in y 0.411 * [backup-simplify]: Simplify 1 into 1 0.411 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0 0.412 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0 0.412 * [backup-simplify]: Simplify (+ 0 0) into 0 0.412 * [taylor]: Taking taylor expansion of 0 in y 0.412 * [backup-simplify]: Simplify 0 into 0 0.412 * [backup-simplify]: Simplify 1 into 1 0.413 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0 0.413 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0 0.413 * [backup-simplify]: Simplify (+ 0 (/ 1 y)) into (/ 1 y) 0.413 * [taylor]: Taking taylor expansion of (/ 1 y) in y 0.413 * [taylor]: Taking taylor expansion of y in y 0.413 * [backup-simplify]: Simplify 0 into 0 0.413 * [backup-simplify]: Simplify 1 into 1 0.414 * [backup-simplify]: Simplify (/ 1 1) into 1 0.414 * [backup-simplify]: Simplify 1 into 1 0.414 * [backup-simplify]: Simplify 0 into 0 0.414 * [backup-simplify]: Simplify 0 into 0 0.414 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0 0.415 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0 0.415 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0 0.415 * [backup-simplify]: Simplify (+ 0 0) into 0 0.415 * [taylor]: Taking taylor expansion of 0 in y 0.415 * [backup-simplify]: Simplify 0 into 0 0.416 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0 0.416 * [backup-simplify]: Simplify 0 into 0 0.416 * [backup-simplify]: Simplify 0 into 0 0.416 * [backup-simplify]: Simplify 0 into 0 0.417 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0 0.418 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0 0.419 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0 0.419 * [backup-simplify]: Simplify (+ 0 0) into 0 0.419 * [taylor]: Taking taylor expansion of 0 in y 0.419 * [backup-simplify]: Simplify 0 into 0 0.419 * [backup-simplify]: Simplify 0 into 0 0.420 * [backup-simplify]: Simplify (+ (* 1 (* (/ 1 (/ 1 (- y))) 1)) (* 1 (pow (* 1 (/ 1 (/ 1 (- x)))) 2))) into (- (pow x 2) y) 0.421 * * * [progress]: simplifying candidates 0.421 * * * * [progress]: [ 1 / 17 ] simplifiying candidate #real (real->posit16 (- (* x x) y)))))> 0.421 * * * * [progress]: [ 2 / 17 ] simplifiying candidate # 0.421 * * * * [progress]: [ 3 / 17 ] simplifiying candidate # 0.421 * * * * [progress]: [ 4 / 17 ] simplifiying candidate # 0.421 * * * * [progress]: [ 5 / 17 ] simplifiying candidate # 0.421 * * * * [progress]: [ 6 / 17 ] simplifiying candidate # 0.421 * * * * [progress]: [ 7 / 17 ] simplifiying candidate # 0.421 * * * * [progress]: [ 8 / 17 ] simplifiying candidate # 0.421 * * * * [progress]: [ 9 / 17 ] simplifiying candidate # 0.421 * * * * [progress]: [ 10 / 17 ] simplifiying candidate # 0.421 * * * * [progress]: [ 11 / 17 ] simplifiying candidate # 0.422 * * * * [progress]: [ 12 / 17 ] simplifiying candidate # 0.422 * * * * [progress]: [ 13 / 17 ] simplifiying candidate # 0.422 * * * * [progress]: [ 14 / 17 ] simplifiying candidate # 0.422 * * * * [progress]: [ 15 / 17 ] simplifiying candidate # 0.422 * * * * [progress]: [ 16 / 17 ] simplifiying candidate # 0.422 * * * * [progress]: [ 17 / 17 ] simplifiying candidate # 0.422 * [simplify]: Simplifying: (real->posit16 (- (* x x) y)) (/ (exp (* x x)) (exp y)) (log (- (* x x) y)) (exp (- (* x x) y)) (* (cbrt (- (* x x) y)) (cbrt (- (* x x) y))) (cbrt (- (* x x) y)) (* (* (- (* x x) y) (- (* x x) y)) (- (* x x) y)) (sqrt (- (* x x) y)) (sqrt (- (* x x) y)) (- (pow (* x x) 3) (pow y 3)) (+ (* (* x x) (* x x)) (+ (* y y) (* (* x x) y))) (- y) (- (* (* x x) (* x x)) (* y y)) (+ (* x x) y) (+ x (sqrt y)) (- x (sqrt y)) (- y) (- (pow x 2) y) (- (pow x 2) y) (- (pow x 2) y) 0.423 * * [simplify]: iteration 0: 33 enodes 0.458 * * [simplify]: iteration 1: 80 enodes 0.576 * * [simplify]: iteration 2: 191 enodes 0.812 * * [simplify]: iteration 3: 552 enodes 1.688 * * [simplify]: iteration 4: 1646 enodes 4.127 * * [simplify]: iteration complete: 5014 enodes 4.127 * * [simplify]: Extracting #0: cost 15 inf + 0 4.127 * * [simplify]: Extracting #1: cost 181 inf + 0 4.130 * * [simplify]: Extracting #2: cost 1093 inf + 1099 4.143 * * [simplify]: Extracting #3: cost 982 inf + 43887 4.187 * * [simplify]: Extracting #4: cost 288 inf + 173768 4.241 * * [simplify]: Extracting #5: cost 132 inf + 236662 4.316 * * [simplify]: Extracting #6: cost 27 inf + 266344 4.407 * * [simplify]: Extracting #7: cost 0 inf + 275698 4.497 * [simplify]: Simplified to: (real->posit16 (- (* x x) y)) (exp (- (* x x) y)) (log (- (* x x) y)) (exp (- (* x x) y)) (* (cbrt (- (* x x) y)) (cbrt (- (* x x) y))) (cbrt (- (* x x) y)) (* (* (- (* x x) y) (- (* x x) y)) (- (* x x) y)) (sqrt (- (* x x) y)) (sqrt (- (* x x) y)) (- (* (* (* x x) (* x x)) (* x x)) (* (* y y) y)) (+ (* y y) (* (* x x) (+ y (* x x)))) (- y) (* (+ y (* x x)) (- (* x x) y)) (+ y (* x x)) (+ (sqrt y) x) (- x (sqrt y)) (- y) (- (* x x) y) (- (* x x) y) (- (* x x) y) 4.498 * * * [progress]: adding candidates to table 4.636 * [progress]: [Phase 3 of 3] Extracting. 4.644 * [simplify]: Simplifying: (* 0.5 (- (* x x) y)) 4.644 * * [simplify]: iteration 0: 6 enodes 4.645 * * [simplify]: iteration 1: 7 enodes 4.647 * * [simplify]: iteration complete: 7 enodes 4.647 * * [simplify]: Extracting #0: cost 1 inf + 0 4.647 * * [simplify]: Extracting #1: cost 3 inf + 0 4.647 * * [simplify]: Extracting #2: cost 4 inf + 1 4.647 * * [simplify]: Extracting #3: cost 4 inf + 2 4.647 * * [simplify]: Extracting #4: cost 0 inf + 249 4.647 * [simplify]: Simplified to: (* (- (* x x) y) 0.5) 6.592 * [regime-testing]: Baseline error score: 0.021200770408891255 6.614 * [regime-testing]: Oracle error score: 0.021200770408891255 6.614 * [regime-testing]: End program error score: 0.021200770408891255