10.489 * [progress]: [Phase 1 of 3] Setting up. 0.001 * * * [progress]: [1/2] Preparing points 0.011 * * * [progress]: [2/2] Setting up program. 0.013 * [progress]: [Phase 2 of 3] Improving. 0.013 * [simplify]: Simplifying using # : (* x (- 1.0 (* x 0.5))) 0.015 * * [simplify]: iteration 0 : 10 enodes (cost 3 ) 0.016 * * [simplify]: iteration 1 : 23 enodes (cost 3 ) 0.018 * * [simplify]: iteration 2 : 38 enodes (cost 3 ) 0.019 * * [simplify]: iteration 3 : 47 enodes (cost 3 ) 0.021 * * [simplify]: iteration 4 : 47 enodes (cost 3 ) 0.021 * [simplify]: Simplified to: (* x (- 1.0 (* x 0.5))) 0.021 * * [progress]: iteration 1 / 4 0.021 * * * [progress]: picking best candidate 0.022 * * * * [pick]: Picked # 0.022 * * * [progress]: localizing error 0.027 * * * [progress]: generating rewritten candidates 0.027 * * * * [progress]: [ 1 / 1 ] rewriting at (2) 0.032 * * * [progress]: generating series expansions 0.033 * * * * [progress]: [ 1 / 1 ] generating series at (2) 0.033 * [approximate]: Taking taylor expansion of (* x (- 1.0 (* 0.5 x))) in (x) around 0 0.033 * [taylor]: Taking taylor expansion of (* x (- 1.0 (* 0.5 x))) in x 0.033 * [taylor]: Taking taylor expansion of x in x 0.033 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 x)) in x 0.033 * [taylor]: Taking taylor expansion of 1.0 in x 0.033 * [taylor]: Taking taylor expansion of (* 0.5 x) in x 0.033 * [taylor]: Taking taylor expansion of 0.5 in x 0.033 * [taylor]: Taking taylor expansion of x in x 0.033 * [taylor]: Taking taylor expansion of (* x (- 1.0 (* 0.5 x))) in x 0.033 * [taylor]: Taking taylor expansion of x in x 0.033 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 x)) in x 0.033 * [taylor]: Taking taylor expansion of 1.0 in x 0.033 * [taylor]: Taking taylor expansion of (* 0.5 x) in x 0.033 * [taylor]: Taking taylor expansion of 0.5 in x 0.033 * [taylor]: Taking taylor expansion of x in x 0.053 * [approximate]: Taking taylor expansion of (/ (- 1.0 (* 0.5 (/ 1 x))) x) in (x) around 0 0.053 * [taylor]: Taking taylor expansion of (/ (- 1.0 (* 0.5 (/ 1 x))) x) in x 0.053 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 (/ 1 x))) in x 0.053 * [taylor]: Taking taylor expansion of 1.0 in x 0.054 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x 0.054 * [taylor]: Taking taylor expansion of 0.5 in x 0.054 * [taylor]: Taking taylor expansion of (/ 1 x) in x 0.054 * [taylor]: Taking taylor expansion of x in x 0.054 * [taylor]: Taking taylor expansion of x in x 0.055 * [taylor]: Taking taylor expansion of (/ (- 1.0 (* 0.5 (/ 1 x))) x) in x 0.055 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 (/ 1 x))) in x 0.055 * [taylor]: Taking taylor expansion of 1.0 in x 0.055 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x 0.055 * [taylor]: Taking taylor expansion of 0.5 in x 0.055 * [taylor]: Taking taylor expansion of (/ 1 x) in x 0.056 * [taylor]: Taking taylor expansion of x in x 0.056 * [taylor]: Taking taylor expansion of x in x 0.077 * [approximate]: Taking taylor expansion of (* -1 (/ (+ (* 0.5 (/ 1 x)) 1.0) x)) in (x) around 0 0.077 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (* 0.5 (/ 1 x)) 1.0) x)) in x 0.077 * [taylor]: Taking taylor expansion of -1 in x 0.077 * [taylor]: Taking taylor expansion of (/ (+ (* 0.5 (/ 1 x)) 1.0) x) in x 0.077 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) 1.0) in x 0.077 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x 0.077 * [taylor]: Taking taylor expansion of 0.5 in x 0.077 * [taylor]: Taking taylor expansion of (/ 1 x) in x 0.077 * [taylor]: Taking taylor expansion of x in x 0.078 * [taylor]: Taking taylor expansion of 1.0 in x 0.078 * [taylor]: Taking taylor expansion of x in x 0.078 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (* 0.5 (/ 1 x)) 1.0) x)) in x 0.078 * [taylor]: Taking taylor expansion of -1 in x 0.078 * [taylor]: Taking taylor expansion of (/ (+ (* 0.5 (/ 1 x)) 1.0) x) in x 0.079 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) 1.0) in x 0.079 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x 0.079 * [taylor]: Taking taylor expansion of 0.5 in x 0.079 * [taylor]: Taking taylor expansion of (/ 1 x) in x 0.079 * [taylor]: Taking taylor expansion of x in x 0.079 * [taylor]: Taking taylor expansion of 1.0 in x 0.079 * [taylor]: Taking taylor expansion of x in x 0.101 * * * [progress]: simplifying candidates 0.102 * [simplify]: Simplifying using # : (* x (- 1.0 (* x 0.5))) (+ (log x) (log (- 1.0 (* x 0.5)))) (log (* x (- 1.0 (* x 0.5)))) (exp (* x (- 1.0 (* x 0.5)))) (* (* (* x x) x) (* (* (- 1.0 (* x 0.5)) (- 1.0 (* x 0.5))) (- 1.0 (* x 0.5)))) (* (cbrt (* x (- 1.0 (* x 0.5)))) (cbrt (* x (- 1.0 (* x 0.5))))) (cbrt (* x (- 1.0 (* x 0.5)))) (* (* (* x (- 1.0 (* x 0.5))) (* x (- 1.0 (* x 0.5)))) (* x (- 1.0 (* x 0.5)))) (sqrt (* x (- 1.0 (* x 0.5)))) (sqrt (* x (- 1.0 (* x 0.5)))) (* (sqrt x) (sqrt (- 1.0 (* x 0.5)))) (* (sqrt x) (sqrt (- 1.0 (* x 0.5)))) (* x 1.0) (* x (- (* x 0.5))) (* x 1.0) (* x (- (* x 0.5))) (* 1.0 x) (* (- (* x 0.5)) x) (* 1.0 x) (* (- (* x 0.5)) x) (* x (* (cbrt (- 1.0 (* x 0.5))) (cbrt (- 1.0 (* x 0.5))))) (* x (sqrt (- 1.0 (* x 0.5)))) (* x 1) (* (cbrt x) (- 1.0 (* x 0.5))) (* (sqrt x) (- 1.0 (* x 0.5))) (* x (- 1.0 (* x 0.5))) (* x (- (pow 1.0 3) (pow (* x 0.5) 3))) (* x (- (* 1.0 1.0) (* (* x 0.5) (* x 0.5)))) (- (* 1.0 x) (* 0.5 (pow x 2))) (- (* 1.0 x) (* 0.5 (pow x 2))) (- (* 1.0 x) (* 0.5 (pow x 2))) 0.105 * * [simplify]: iteration 0 : 122 enodes (cost 130 ) 0.108 * * [simplify]: iteration 1 : 534 enodes (cost 113 ) 0.121 * * [simplify]: iteration 2 : 2890 enodes (cost 113 ) 0.188 * * [simplify]: iteration 3 : 5002 enodes (cost 113 ) 0.189 * [simplify]: Simplified to: (* x (- 1.0 (* x 0.5))) (log (* x (- 1.0 (* x 0.5)))) (log (* x (- 1.0 (* x 0.5)))) (exp (* x (- 1.0 (* x 0.5)))) (pow (* x (- 1.0 (* x 0.5))) 3) (* (cbrt (* x (- 1.0 (* x 0.5)))) (cbrt (* x (- 1.0 (* x 0.5))))) (cbrt (* x (- 1.0 (* x 0.5)))) (pow (* x (- 1.0 (* x 0.5))) 3) (sqrt (* x (- 1.0 (* x 0.5)))) (sqrt (* x (- 1.0 (* x 0.5)))) (* (sqrt (- 1.0 (* x 0.5))) (pow x 1/2)) (* (sqrt (- 1.0 (* x 0.5))) (pow x 1/2)) (* x 1.0) (* x (- (* x 0.5))) (* x 1.0) (* x (- (* x 0.5))) (* x 1.0) (* x (- (* x 0.5))) (* x 1.0) (* x (- (* x 0.5))) (* x (* (cbrt (- 1.0 (* x 0.5))) (cbrt (- 1.0 (* x 0.5))))) (* x (sqrt (- 1.0 (* x 0.5)))) x (* (cbrt x) (- 1.0 (* x 0.5))) (* (sqrt x) (- 1.0 (* x 0.5))) (* x (- 1.0 (* x 0.5))) (* x (- (pow 1.0 3) (pow (* x 0.5) 3))) (* x (- (* 1.0 1.0) (* (* x 0.5) (* x 0.5)))) (* x (- 1.0 (* x 0.5))) (* x (- 1.0 (* x 0.5))) (* x (- 1.0 (* x 0.5))) 0.189 * * * [progress]: adding candidates to table 0.217 * * [progress]: iteration 2 / 4 0.217 * * * [progress]: picking best candidate 0.218 * * * * [pick]: Picked # 0.218 * * * [progress]: localizing error 0.224 * * * [progress]: generating rewritten candidates 0.224 * * * [progress]: generating series expansions 0.224 * * * [progress]: simplifying candidates 0.225 * [simplify]: Simplifying using # : 0.229 * * [simplify]: iteration 0 : 0 enodes (cost 0 ) 0.229 * [simplify]: Simplified to: 0.229 * * * [progress]: adding candidates to table 0.230 * [progress]: [Phase 3 of 3] Extracting. 0.231 * [simplify]: Simplifying using # : (+ (* x 1.0) (* x (- (* x 0.5)))) 0.232 * * [simplify]: iteration 0 : 18 enodes (cost 5 ) 0.232 * * [simplify]: iteration 1 : 23 enodes (cost 5 ) 0.232 * * [simplify]: iteration 2 : 24 enodes (cost 5 ) 0.233 * * [simplify]: iteration 3 : 24 enodes (cost 5 ) 0.233 * [simplify]: Simplified to: (+ (* x 1.0) (* x (- (* x 0.5)))) 0.552 * [regime-testing]: End program error score: 0.01148979754914471