7.732 * [progress]: [Phase 1 of 3] Setting up. 0.001 * * * [progress]: [1/2] Preparing points 0.015 * * * [progress]: [2/2] Setting up program. 0.017 * [progress]: [Phase 2 of 3] Improving. 0.017 * [simplify]: Simplifying: (/ x (* y 2.0)) 0.017 * * [simplify]: Extracting # 0 : cost 0 0.017 * * [simplify]: Extracting # 1 : cost 0 0.017 * * [simplify]: Extracting # 2 : cost 0 0.017 * * [simplify]: Extracting # 3 : cost 0 0.017 * * [simplify]: Extracting # 4 : cost 0 0.017 * * [simplify]: iteration 0 : 5 enodes (cost 5 ) 0.018 * * [simplify]: Extracting # 0 : cost 0 0.018 * * [simplify]: Extracting # 1 : cost 0 0.018 * * [simplify]: Extracting # 2 : cost 0 0.018 * * [simplify]: iteration 1 : 8 enodes (cost 5 ) 0.020 * * [simplify]: Extracting # 0 : cost 0 0.021 * * [simplify]: Extracting # 1 : cost 0 0.021 * * [simplify]: Extracting # 2 : cost 0 0.021 * * [simplify]: iteration 2 : 10 enodes (cost 5 ) 0.023 * * [simplify]: Extracting # 0 : cost 0 0.023 * * [simplify]: iteration done: 10 enodes (cost 5 ) 0.024 * [simplify]: Simplified to: (/ x (* y 2.0)) 0.024 * * [progress]: iteration 1 / 4 0.024 * * * [progress]: picking best candidate 0.026 * * * * [pick]: Picked # 0.026 * * * [progress]: localizing error 0.035 * * * [progress]: generating rewritten candidates 0.035 * * * * [progress]: [ 1 / 1 ] rewriting at (2) 0.053 * * * [progress]: generating series expansions 0.053 * * * * [progress]: [ 1 / 1 ] generating series at (2) 0.053 * [backup-simplify]: Simplify (/ x (* y 2.0)) into (* 0.5 (/ x y)) 0.053 * [approximate]: Taking taylor expansion of (* 0.5 (/ x y)) in (x y) around 0 0.053 * [taylor]: Taking taylor expansion of (* 0.5 (/ x y)) in y 0.053 * [taylor]: Taking taylor expansion of 0.5 in y 0.053 * [backup-simplify]: Simplify 0.5 into 0.5 0.053 * [taylor]: Taking taylor expansion of (/ x y) in y 0.053 * [taylor]: Taking taylor expansion of x in y 0.053 * [backup-simplify]: Simplify x into x 0.053 * [taylor]: Taking taylor expansion of y in y 0.053 * [backup-simplify]: Simplify 0 into 0 0.053 * [backup-simplify]: Simplify 1 into 1 0.053 * [backup-simplify]: Simplify (/ x 1) into x 0.053 * [taylor]: Taking taylor expansion of (* 0.5 (/ x y)) in x 0.053 * [taylor]: Taking taylor expansion of 0.5 in x 0.054 * [backup-simplify]: Simplify 0.5 into 0.5 0.054 * [taylor]: Taking taylor expansion of (/ x y) in x 0.054 * [taylor]: Taking taylor expansion of x in x 0.054 * [backup-simplify]: Simplify 0 into 0 0.054 * [backup-simplify]: Simplify 1 into 1 0.054 * [taylor]: Taking taylor expansion of y in x 0.054 * [backup-simplify]: Simplify y into y 0.054 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y) 0.054 * [taylor]: Taking taylor expansion of (* 0.5 (/ x y)) in x 0.054 * [taylor]: Taking taylor expansion of 0.5 in x 0.054 * [backup-simplify]: Simplify 0.5 into 0.5 0.054 * [taylor]: Taking taylor expansion of (/ x y) in x 0.054 * [taylor]: Taking taylor expansion of x in x 0.054 * [backup-simplify]: Simplify 0 into 0 0.054 * [backup-simplify]: Simplify 1 into 1 0.054 * [taylor]: Taking taylor expansion of y in x 0.054 * [backup-simplify]: Simplify y into y 0.054 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y) 0.054 * [backup-simplify]: Simplify (* 0.5 (/ 1 y)) into (/ 0.5 y) 0.054 * [taylor]: Taking taylor expansion of (/ 0.5 y) in y 0.054 * [taylor]: Taking taylor expansion of 0.5 in y 0.054 * [backup-simplify]: Simplify 0.5 into 0.5 0.054 * [taylor]: Taking taylor expansion of y in y 0.054 * [backup-simplify]: Simplify 0 into 0 0.054 * [backup-simplify]: Simplify 1 into 1 0.055 * [backup-simplify]: Simplify (/ 0.5 1) into 0.5 0.055 * [backup-simplify]: Simplify 0.5 into 0.5 0.056 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 1 y) (/ 0 y)))) into 0 0.056 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 (/ 1 y))) into 0 0.056 * [taylor]: Taking taylor expansion of 0 in y 0.056 * [backup-simplify]: Simplify 0 into 0 0.057 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)))) into 0 0.057 * [backup-simplify]: Simplify 0 into 0 0.058 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0 0.059 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 (/ 1 y)))) into 0 0.059 * [taylor]: Taking taylor expansion of 0 in y 0.059 * [backup-simplify]: Simplify 0 into 0 0.059 * [backup-simplify]: Simplify 0 into 0 0.060 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)) (* 0 (/ 0 1)))) into 0 0.060 * [backup-simplify]: Simplify 0 into 0 0.060 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0 0.061 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ 1 y))))) into 0 0.061 * [taylor]: Taking taylor expansion of 0 in y 0.062 * [backup-simplify]: Simplify 0 into 0 0.062 * [backup-simplify]: Simplify 0 into 0 0.062 * [backup-simplify]: Simplify 0 into 0 0.063 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0 0.063 * [backup-simplify]: Simplify 0 into 0 0.063 * [backup-simplify]: Simplify (* 0.5 (* (/ 1 y) x)) into (* 0.5 (/ x y)) 0.063 * [backup-simplify]: Simplify (/ (/ 1 x) (* (/ 1 y) 2.0)) into (* 0.5 (/ y x)) 0.063 * [approximate]: Taking taylor expansion of (* 0.5 (/ y x)) in (x y) around 0 0.063 * [taylor]: Taking taylor expansion of (* 0.5 (/ y x)) in y 0.063 * [taylor]: Taking taylor expansion of 0.5 in y 0.063 * [backup-simplify]: Simplify 0.5 into 0.5 0.063 * [taylor]: Taking taylor expansion of (/ y x) in y 0.063 * [taylor]: Taking taylor expansion of y in y 0.063 * [backup-simplify]: Simplify 0 into 0 0.063 * [backup-simplify]: Simplify 1 into 1 0.063 * [taylor]: Taking taylor expansion of x in y 0.063 * [backup-simplify]: Simplify x into x 0.063 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x) 0.063 * [taylor]: Taking taylor expansion of (* 0.5 (/ y x)) in x 0.064 * [taylor]: Taking taylor expansion of 0.5 in x 0.064 * [backup-simplify]: Simplify 0.5 into 0.5 0.064 * [taylor]: Taking taylor expansion of (/ y x) in x 0.064 * [taylor]: Taking taylor expansion of y in x 0.064 * [backup-simplify]: Simplify y into y 0.064 * [taylor]: Taking taylor expansion of x in x 0.064 * [backup-simplify]: Simplify 0 into 0 0.064 * [backup-simplify]: Simplify 1 into 1 0.064 * [backup-simplify]: Simplify (/ y 1) into y 0.064 * [taylor]: Taking taylor expansion of (* 0.5 (/ y x)) in x 0.064 * [taylor]: Taking taylor expansion of 0.5 in x 0.064 * [backup-simplify]: Simplify 0.5 into 0.5 0.064 * [taylor]: Taking taylor expansion of (/ y x) in x 0.064 * [taylor]: Taking taylor expansion of y in x 0.064 * [backup-simplify]: Simplify y into y 0.064 * [taylor]: Taking taylor expansion of x in x 0.064 * [backup-simplify]: Simplify 0 into 0 0.064 * [backup-simplify]: Simplify 1 into 1 0.064 * [backup-simplify]: Simplify (/ y 1) into y 0.064 * [backup-simplify]: Simplify (* 0.5 y) into (* 0.5 y) 0.064 * [taylor]: Taking taylor expansion of (* 0.5 y) in y 0.064 * [taylor]: Taking taylor expansion of 0.5 in y 0.064 * [backup-simplify]: Simplify 0.5 into 0.5 0.064 * [taylor]: Taking taylor expansion of y in y 0.064 * [backup-simplify]: Simplify 0 into 0 0.064 * [backup-simplify]: Simplify 1 into 1 0.066 * [backup-simplify]: Simplify (+ (* 0.5 1) (* 0 0)) into 0.5 0.066 * [backup-simplify]: Simplify 0.5 into 0.5 0.067 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* y (/ 0 1)))) into 0 0.068 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 y)) into 0 0.068 * [taylor]: Taking taylor expansion of 0 in y 0.068 * [backup-simplify]: Simplify 0 into 0 0.068 * [backup-simplify]: Simplify 0 into 0 0.069 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 1) (* 0 0))) into 0 0.069 * [backup-simplify]: Simplify 0 into 0 0.070 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* y (/ 0 1)) (* 0 (/ 0 1)))) into 0 0.071 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 y))) into 0 0.071 * [taylor]: Taking taylor expansion of 0 in y 0.071 * [backup-simplify]: Simplify 0 into 0 0.071 * [backup-simplify]: Simplify 0 into 0 0.071 * [backup-simplify]: Simplify 0 into 0 0.073 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0 0.073 * [backup-simplify]: Simplify 0 into 0 0.075 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* y (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0 0.075 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 y)))) into 0 0.075 * [taylor]: Taking taylor expansion of 0 in y 0.075 * [backup-simplify]: Simplify 0 into 0 0.075 * [backup-simplify]: Simplify 0 into 0 0.075 * [backup-simplify]: Simplify (* 0.5 (* (/ 1 y) (/ 1 (/ 1 x)))) into (* 0.5 (/ x y)) 0.076 * [backup-simplify]: Simplify (/ (/ 1 (- x)) (* (/ 1 (- y)) 2.0)) into (* 0.5 (/ y x)) 0.076 * [approximate]: Taking taylor expansion of (* 0.5 (/ y x)) in (x y) around 0 0.076 * [taylor]: Taking taylor expansion of (* 0.5 (/ y x)) in y 0.076 * [taylor]: Taking taylor expansion of 0.5 in y 0.076 * [backup-simplify]: Simplify 0.5 into 0.5 0.076 * [taylor]: Taking taylor expansion of (/ y x) in y 0.076 * [taylor]: Taking taylor expansion of y in y 0.076 * [backup-simplify]: Simplify 0 into 0 0.076 * [backup-simplify]: Simplify 1 into 1 0.076 * [taylor]: Taking taylor expansion of x in y 0.076 * [backup-simplify]: Simplify x into x 0.076 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x) 0.076 * [taylor]: Taking taylor expansion of (* 0.5 (/ y x)) in x 0.076 * [taylor]: Taking taylor expansion of 0.5 in x 0.076 * [backup-simplify]: Simplify 0.5 into 0.5 0.076 * [taylor]: Taking taylor expansion of (/ y x) in x 0.076 * [taylor]: Taking taylor expansion of y in x 0.076 * [backup-simplify]: Simplify y into y 0.076 * [taylor]: Taking taylor expansion of x in x 0.076 * [backup-simplify]: Simplify 0 into 0 0.076 * [backup-simplify]: Simplify 1 into 1 0.076 * [backup-simplify]: Simplify (/ y 1) into y 0.076 * [taylor]: Taking taylor expansion of (* 0.5 (/ y x)) in x 0.076 * [taylor]: Taking taylor expansion of 0.5 in x 0.076 * [backup-simplify]: Simplify 0.5 into 0.5 0.076 * [taylor]: Taking taylor expansion of (/ y x) in x 0.076 * [taylor]: Taking taylor expansion of y in x 0.076 * [backup-simplify]: Simplify y into y 0.076 * [taylor]: Taking taylor expansion of x in x 0.076 * [backup-simplify]: Simplify 0 into 0 0.076 * [backup-simplify]: Simplify 1 into 1 0.076 * [backup-simplify]: Simplify (/ y 1) into y 0.076 * [backup-simplify]: Simplify (* 0.5 y) into (* 0.5 y) 0.076 * [taylor]: Taking taylor expansion of (* 0.5 y) in y 0.076 * [taylor]: Taking taylor expansion of 0.5 in y 0.076 * [backup-simplify]: Simplify 0.5 into 0.5 0.076 * [taylor]: Taking taylor expansion of y in y 0.076 * [backup-simplify]: Simplify 0 into 0 0.076 * [backup-simplify]: Simplify 1 into 1 0.077 * [backup-simplify]: Simplify (+ (* 0.5 1) (* 0 0)) into 0.5 0.077 * [backup-simplify]: Simplify 0.5 into 0.5 0.078 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* y (/ 0 1)))) into 0 0.078 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 y)) into 0 0.078 * [taylor]: Taking taylor expansion of 0 in y 0.078 * [backup-simplify]: Simplify 0 into 0 0.078 * [backup-simplify]: Simplify 0 into 0 0.079 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 1) (* 0 0))) into 0 0.079 * [backup-simplify]: Simplify 0 into 0 0.079 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* y (/ 0 1)) (* 0 (/ 0 1)))) into 0 0.080 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 y))) into 0 0.080 * [taylor]: Taking taylor expansion of 0 in y 0.080 * [backup-simplify]: Simplify 0 into 0 0.080 * [backup-simplify]: Simplify 0 into 0 0.080 * [backup-simplify]: Simplify 0 into 0 0.081 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0 0.081 * [backup-simplify]: Simplify 0 into 0 0.082 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* y (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0 0.082 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 y)))) into 0 0.082 * [taylor]: Taking taylor expansion of 0 in y 0.082 * [backup-simplify]: Simplify 0 into 0 0.082 * [backup-simplify]: Simplify 0 into 0 0.083 * [backup-simplify]: Simplify (* 0.5 (* (/ 1 (- y)) (/ 1 (/ 1 (- x))))) into (* 0.5 (/ x y)) 0.083 * * * [progress]: simplifying candidates 0.083 * [simplify]: Simplifying: (- (log x) (+ (log y) (log 2.0))) (- (log x) (log (* y 2.0))) (log (/ x (* y 2.0))) (exp (/ x (* y 2.0))) (/ (* (* x x) x) (* (* (* y y) y) (* (* 2.0 2.0) 2.0))) (/ (* (* x x) x) (* (* (* y 2.0) (* y 2.0)) (* y 2.0))) (* (cbrt (/ x (* y 2.0))) (cbrt (/ x (* y 2.0)))) (cbrt (/ x (* y 2.0))) (* (* (/ x (* y 2.0)) (/ x (* y 2.0))) (/ x (* y 2.0))) (sqrt (/ x (* y 2.0))) (sqrt (/ x (* y 2.0))) (- x) (- (* y 2.0)) (/ (* (cbrt x) (cbrt x)) y) (/ (cbrt x) 2.0) (/ (sqrt x) y) (/ (sqrt x) 2.0) (/ 1 y) (/ x 2.0) (/ 1 (* y 2.0)) (/ (* y 2.0) x) (/ x y) (/ (* y 2.0) (cbrt x)) (/ (* y 2.0) (sqrt x)) (/ (* y 2.0) x) (* 0.5 (/ x y)) (* 0.5 (/ x y)) (* 0.5 (/ x y)) 0.083 * * [simplify]: Extracting # 0 : cost 0 0.084 * * [simplify]: Extracting # 1 : cost 0 0.084 * * [simplify]: Extracting # 2 : cost 0 0.084 * * [simplify]: Extracting # 3 : cost 0 0.084 * * [simplify]: Extracting # 4 : cost 0 0.084 * * [simplify]: Extracting # 5 : cost 0 0.084 * * [simplify]: Extracting # 6 : cost 0 0.084 * * [simplify]: Extracting # 7 : cost 0 0.084 * * [simplify]: iteration 0 : 49 enodes (cost 185 ) 0.093 * * [simplify]: Extracting # 0 : cost 0 0.093 * * [simplify]: Extracting # 1 : cost 0 0.093 * * [simplify]: Extracting # 2 : cost 0 0.094 * * [simplify]: iteration 1 : 109 enodes (cost 182 ) 0.132 * * [simplify]: Extracting # 0 : cost 0 0.133 * * [simplify]: Extracting # 1 : cost 0 0.134 * * [simplify]: Extracting # 2 : cost 0 0.135 * * [simplify]: Extracting # 3 : cost 0 0.136 * * [simplify]: Extracting # 4 : cost 0 0.136 * * [simplify]: Extracting # 5 : cost 0 0.137 * * [simplify]: iteration 2 : 364 enodes (cost 152 ) 0.482 * * [simplify]: Extracting # 0 : cost 0 0.486 * * [simplify]: Extracting # 1 : cost 0 0.489 * * [simplify]: Extracting # 2 : cost 0 0.492 * * [simplify]: Extracting # 3 : cost 0 0.494 * * [simplify]: Extracting # 4 : cost 0 0.497 * * [simplify]: iteration 3 : 1717 enodes (cost 152 ) 3.375 * * [simplify]: Extracting # 0 : cost 0 3.405 * * [simplify]: Extracting # 1 : cost 0 3.409 * * [simplify]: Extracting # 2 : cost 0 3.413 * * [simplify]: Extracting # 3 : cost 0 3.419 * * [simplify]: Extracting # 4 : cost 0 3.425 * * [simplify]: Extracting # 5 : cost 0 3.429 * * [simplify]: iteration done: 5000 enodes (cost 152 ) 3.429 * [simplify]: Simplified to: (log (/ x (* y 2.0))) (log (/ x (* y 2.0))) (log (/ x (* y 2.0))) (exp (/ x (* y 2.0))) (pow (/ x (* y 2.0)) 3) (pow (/ x (* y 2.0)) 3) (* (cbrt (/ x (* y 2.0))) (cbrt (/ x (* y 2.0)))) (cbrt (/ x (* y 2.0))) (pow (/ x (* y 2.0)) 3) (sqrt (/ x (* y 2.0))) (sqrt (/ x (* y 2.0))) (- x) (- (* y 2.0)) (/ (* (cbrt x) (cbrt x)) y) (/ (cbrt x) 2.0) (/ (sqrt x) y) (/ (sqrt x) 2.0) (/ 1 y) (/ x 2.0) (/ 1 (* y 2.0)) (/ (* y 2.0) x) (/ x y) (/ (* y 2.0) (cbrt x)) (/ (* y 2.0) (sqrt x)) (/ (* y 2.0) x) (* 0.5 (/ x y)) (* 0.5 (/ x y)) (* 0.5 (/ x y)) 3.429 * * * [progress]: adding candidates to table 3.466 * * [progress]: iteration 2 / 4 3.466 * * * [progress]: picking best candidate 3.467 * * * * [pick]: Picked # 3.467 * * * [progress]: localizing error 3.471 * * * [progress]: generating rewritten candidates 3.471 * * * [progress]: generating series expansions 3.471 * * * [progress]: simplifying candidates 3.472 * [simplify]: Simplifying: 3.472 * * [simplify]: Extracting # 0 : cost 0 3.472 * * [simplify]: iteration 0 : 0 enodes (cost 0 ) 3.472 * * [simplify]: Extracting # 0 : cost 0 3.472 * * [simplify]: iteration done: 0 enodes (cost 0 ) 3.472 * [simplify]: Simplified to: 3.472 * * * [progress]: adding candidates to table 3.472 * [progress]: [Phase 3 of 3] Extracting. 3.473 * [simplify]: Simplifying: (* 0.5 (/ x y)) 3.474 * * [simplify]: Extracting # 0 : cost 0 3.474 * * [simplify]: Extracting # 1 : cost 0 3.474 * * [simplify]: Extracting # 2 : cost 0 3.474 * * [simplify]: Extracting # 3 : cost 0 3.474 * * [simplify]: Extracting # 4 : cost 0 3.474 * * [simplify]: iteration 0 : 5 enodes (cost 5 ) 3.474 * * [simplify]: Extracting # 0 : cost 0 3.474 * * [simplify]: iteration 1 : 6 enodes (cost 5 ) 3.474 * * [simplify]: Extracting # 0 : cost 0 3.474 * * [simplify]: iteration done: 6 enodes (cost 5 ) 3.474 * [simplify]: Simplified to: (* 0.5 (/ x y)) 4.173 * [regime-testing]: Baseline error score: 0.043005375671958994 4.177 * [regime-testing]: Oracle error score: 0.043005375671958994 4.177 * [regime-testing]: End program error score: 0.043005375671958994