20.212 * [progress]: [Phase 1 of 3] Setting up. 0.001 * * * [progress]: [1/2] Preparing points 0.034 * * * [progress]: [2/2] Setting up program. 0.037 * [progress]: [Phase 2 of 3] Improving. 0.038 * [simplify]: Simplifying: (- (/ (* x y) 2.0) (/ z 8.0)) 0.038 * * [simplify]: Extracting # 0 : cost 0 0.038 * * [simplify]: Extracting # 1 : cost 0 0.038 * * [simplify]: Extracting # 2 : cost 0 0.038 * * [simplify]: Extracting # 3 : cost 0 0.038 * * [simplify]: Extracting # 4 : cost 0 0.038 * * [simplify]: Extracting # 5 : cost 0 0.038 * * [simplify]: iteration 0 : 9 enodes (cost 9 ) 0.040 * * [simplify]: Extracting # 0 : cost 0 0.040 * * [simplify]: Extracting # 1 : cost 0 0.040 * * [simplify]: Extracting # 2 : cost 0 0.040 * * [simplify]: iteration 1 : 14 enodes (cost 9 ) 0.044 * * [simplify]: Extracting # 0 : cost 0 0.044 * * [simplify]: Extracting # 1 : cost 0 0.044 * * [simplify]: Extracting # 2 : cost 0 0.044 * * [simplify]: iteration 2 : 21 enodes (cost 9 ) 0.049 * * [simplify]: Extracting # 0 : cost 0 0.049 * * [simplify]: Extracting # 1 : cost 0 0.049 * * [simplify]: Extracting # 2 : cost 0 0.049 * * [simplify]: iteration 3 : 24 enodes (cost 9 ) 0.056 * * [simplify]: Extracting # 0 : cost 0 0.056 * * [simplify]: iteration 4 : 25 enodes (cost 9 ) 0.063 * * [simplify]: Extracting # 0 : cost 0 0.063 * * [simplify]: iteration done: 25 enodes (cost 9 ) 0.063 * [simplify]: Simplified to: (- (/ (* x y) 2.0) (/ z 8.0)) 0.063 * * [progress]: iteration 1 / 4 0.063 * * * [progress]: picking best candidate 0.066 * * * * [pick]: Picked # 0.066 * * * [progress]: localizing error 0.076 * * * [progress]: generating rewritten candidates 0.076 * * * * [progress]: [ 1 / 1 ] rewriting at (2 1) 0.090 * * * [progress]: generating series expansions 0.090 * * * * [progress]: [ 1 / 1 ] generating series at (2 1) 0.090 * [backup-simplify]: Simplify (/ (* x y) 2.0) into (* 0.5 (* x y)) 0.090 * [approximate]: Taking taylor expansion of (* 0.5 (* x y)) in (x y) around 0 0.090 * [taylor]: Taking taylor expansion of (* 0.5 (* x y)) in y 0.090 * [taylor]: Taking taylor expansion of 0.5 in y 0.090 * [backup-simplify]: Simplify 0.5 into 0.5 0.090 * [taylor]: Taking taylor expansion of (* x y) in y 0.090 * [taylor]: Taking taylor expansion of x in y 0.091 * [backup-simplify]: Simplify x into x 0.091 * [taylor]: Taking taylor expansion of y in y 0.091 * [backup-simplify]: Simplify 0 into 0 0.091 * [backup-simplify]: Simplify 1 into 1 0.091 * [taylor]: Taking taylor expansion of (* 0.5 (* x y)) in x 0.091 * [taylor]: Taking taylor expansion of 0.5 in x 0.091 * [backup-simplify]: Simplify 0.5 into 0.5 0.091 * [taylor]: Taking taylor expansion of (* x y) in x 0.091 * [taylor]: Taking taylor expansion of x in x 0.091 * [backup-simplify]: Simplify 0 into 0 0.091 * [backup-simplify]: Simplify 1 into 1 0.091 * [taylor]: Taking taylor expansion of y in x 0.091 * [backup-simplify]: Simplify y into y 0.091 * [taylor]: Taking taylor expansion of (* 0.5 (* x y)) in x 0.091 * [taylor]: Taking taylor expansion of 0.5 in x 0.091 * [backup-simplify]: Simplify 0.5 into 0.5 0.091 * [taylor]: Taking taylor expansion of (* x y) in x 0.091 * [taylor]: Taking taylor expansion of x in x 0.091 * [backup-simplify]: Simplify 0 into 0 0.091 * [backup-simplify]: Simplify 1 into 1 0.091 * [taylor]: Taking taylor expansion of y in x 0.091 * [backup-simplify]: Simplify y into y 0.091 * [backup-simplify]: Simplify (* 0 y) into 0 0.091 * [backup-simplify]: Simplify (* 0.5 0) into 0 0.091 * [taylor]: Taking taylor expansion of 0 in y 0.091 * [backup-simplify]: Simplify 0 into 0 0.091 * [backup-simplify]: Simplify 0 into 0 0.092 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y 0.092 * [backup-simplify]: Simplify (+ (* 0.5 y) (* 0 0)) into (* 0.5 y) 0.092 * [taylor]: Taking taylor expansion of (* 0.5 y) in y 0.092 * [taylor]: Taking taylor expansion of 0.5 in y 0.092 * [backup-simplify]: Simplify 0.5 into 0.5 0.092 * [taylor]: Taking taylor expansion of y in y 0.092 * [backup-simplify]: Simplify 0 into 0 0.092 * [backup-simplify]: Simplify 1 into 1 0.092 * [backup-simplify]: Simplify (* 0.5 0) into 0 0.092 * [backup-simplify]: Simplify 0 into 0 0.092 * [backup-simplify]: Simplify 0 into 0 0.093 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 y))) into 0 0.093 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 y) (* 0 0))) into 0 0.093 * [taylor]: Taking taylor expansion of 0 in y 0.093 * [backup-simplify]: Simplify 0 into 0 0.094 * [backup-simplify]: Simplify 0 into 0 0.094 * [backup-simplify]: Simplify (+ (* 0.5 1) (* 0 0)) into 0.5 0.094 * [backup-simplify]: Simplify 0.5 into 0.5 0.094 * [backup-simplify]: Simplify 0 into 0 0.095 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 y)))) into 0 0.096 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 y) (* 0 0)))) into 0 0.096 * [taylor]: Taking taylor expansion of 0 in y 0.096 * [backup-simplify]: Simplify 0 into 0 0.096 * [backup-simplify]: Simplify 0 into 0 0.096 * [backup-simplify]: Simplify 0 into 0 0.097 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 1) (* 0 0))) into 0 0.097 * [backup-simplify]: Simplify 0 into 0 0.097 * [backup-simplify]: Simplify 0 into 0 0.097 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 y))))) into 0 0.098 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 y) (* 0 0))))) into 0 0.098 * [taylor]: Taking taylor expansion of 0 in y 0.098 * [backup-simplify]: Simplify 0 into 0 0.098 * [backup-simplify]: Simplify 0 into 0 0.099 * [backup-simplify]: Simplify (* 0.5 (* y x)) into (* 0.5 (* x y)) 0.099 * [backup-simplify]: Simplify (/ (* (/ 1 x) (/ 1 y)) 2.0) into (/ 0.5 (* x y)) 0.099 * [approximate]: Taking taylor expansion of (/ 0.5 (* x y)) in (x y) around 0 0.099 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in y 0.099 * [taylor]: Taking taylor expansion of 0.5 in y 0.099 * [backup-simplify]: Simplify 0.5 into 0.5 0.099 * [taylor]: Taking taylor expansion of (* x y) in y 0.099 * [taylor]: Taking taylor expansion of x in y 0.099 * [backup-simplify]: Simplify x into x 0.099 * [taylor]: Taking taylor expansion of y in y 0.099 * [backup-simplify]: Simplify 0 into 0 0.099 * [backup-simplify]: Simplify 1 into 1 0.099 * [backup-simplify]: Simplify (* x 0) into 0 0.099 * [backup-simplify]: Simplify (+ (* x 1) (* 0 0)) into x 0.099 * [backup-simplify]: Simplify (/ 0.5 x) into (/ 0.5 x) 0.099 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in x 0.099 * [taylor]: Taking taylor expansion of 0.5 in x 0.099 * [backup-simplify]: Simplify 0.5 into 0.5 0.099 * [taylor]: Taking taylor expansion of (* x y) in x 0.099 * [taylor]: Taking taylor expansion of x in x 0.099 * [backup-simplify]: Simplify 0 into 0 0.099 * [backup-simplify]: Simplify 1 into 1 0.099 * [taylor]: Taking taylor expansion of y in x 0.099 * [backup-simplify]: Simplify y into y 0.099 * [backup-simplify]: Simplify (* 0 y) into 0 0.100 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y 0.100 * [backup-simplify]: Simplify (/ 0.5 y) into (/ 0.5 y) 0.100 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in x 0.100 * [taylor]: Taking taylor expansion of 0.5 in x 0.100 * [backup-simplify]: Simplify 0.5 into 0.5 0.100 * [taylor]: Taking taylor expansion of (* x y) in x 0.100 * [taylor]: Taking taylor expansion of x in x 0.100 * [backup-simplify]: Simplify 0 into 0 0.100 * [backup-simplify]: Simplify 1 into 1 0.100 * [taylor]: Taking taylor expansion of y in x 0.100 * [backup-simplify]: Simplify y into y 0.100 * [backup-simplify]: Simplify (* 0 y) into 0 0.100 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y 0.100 * [backup-simplify]: Simplify (/ 0.5 y) into (/ 0.5 y) 0.100 * [taylor]: Taking taylor expansion of (/ 0.5 y) in y 0.100 * [taylor]: Taking taylor expansion of 0.5 in y 0.100 * [backup-simplify]: Simplify 0.5 into 0.5 0.100 * [taylor]: Taking taylor expansion of y in y 0.100 * [backup-simplify]: Simplify 0 into 0 0.100 * [backup-simplify]: Simplify 1 into 1 0.101 * [backup-simplify]: Simplify (/ 0.5 1) into 0.5 0.101 * [backup-simplify]: Simplify 0.5 into 0.5 0.101 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 y))) into 0 0.101 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)))) into 0 0.101 * [taylor]: Taking taylor expansion of 0 in y 0.101 * [backup-simplify]: Simplify 0 into 0 0.102 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)))) into 0 0.102 * [backup-simplify]: Simplify 0 into 0 0.103 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 y)))) into 0 0.103 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0 0.103 * [taylor]: Taking taylor expansion of 0 in y 0.103 * [backup-simplify]: Simplify 0 into 0 0.103 * [backup-simplify]: Simplify 0 into 0 0.103 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)) (* 0 (/ 0 1)))) into 0 0.103 * [backup-simplify]: Simplify 0 into 0 0.104 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 y))))) into 0 0.104 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0 0.104 * [taylor]: Taking taylor expansion of 0 in y 0.104 * [backup-simplify]: Simplify 0 into 0 0.105 * [backup-simplify]: Simplify 0 into 0 0.105 * [backup-simplify]: Simplify 0 into 0 0.105 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0 0.105 * [backup-simplify]: Simplify 0 into 0 0.105 * [backup-simplify]: Simplify (* 0.5 (* (/ 1 (/ 1 y)) (/ 1 (/ 1 x)))) into (* 0.5 (* x y)) 0.105 * [backup-simplify]: Simplify (/ (* (/ 1 (- x)) (/ 1 (- y))) 2.0) into (/ 0.5 (* x y)) 0.105 * [approximate]: Taking taylor expansion of (/ 0.5 (* x y)) in (x y) around 0 0.105 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in y 0.105 * [taylor]: Taking taylor expansion of 0.5 in y 0.105 * [backup-simplify]: Simplify 0.5 into 0.5 0.105 * [taylor]: Taking taylor expansion of (* x y) in y 0.106 * [taylor]: Taking taylor expansion of x in y 0.106 * [backup-simplify]: Simplify x into x 0.106 * [taylor]: Taking taylor expansion of y in y 0.106 * [backup-simplify]: Simplify 0 into 0 0.106 * [backup-simplify]: Simplify 1 into 1 0.106 * [backup-simplify]: Simplify (* x 0) into 0 0.106 * [backup-simplify]: Simplify (+ (* x 1) (* 0 0)) into x 0.106 * [backup-simplify]: Simplify (/ 0.5 x) into (/ 0.5 x) 0.106 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in x 0.106 * [taylor]: Taking taylor expansion of 0.5 in x 0.106 * [backup-simplify]: Simplify 0.5 into 0.5 0.106 * [taylor]: Taking taylor expansion of (* x y) in x 0.106 * [taylor]: Taking taylor expansion of x in x 0.106 * [backup-simplify]: Simplify 0 into 0 0.106 * [backup-simplify]: Simplify 1 into 1 0.106 * [taylor]: Taking taylor expansion of y in x 0.106 * [backup-simplify]: Simplify y into y 0.106 * [backup-simplify]: Simplify (* 0 y) into 0 0.106 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y 0.106 * [backup-simplify]: Simplify (/ 0.5 y) into (/ 0.5 y) 0.106 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in x 0.106 * [taylor]: Taking taylor expansion of 0.5 in x 0.106 * [backup-simplify]: Simplify 0.5 into 0.5 0.106 * [taylor]: Taking taylor expansion of (* x y) in x 0.106 * [taylor]: Taking taylor expansion of x in x 0.106 * [backup-simplify]: Simplify 0 into 0 0.107 * [backup-simplify]: Simplify 1 into 1 0.107 * [taylor]: Taking taylor expansion of y in x 0.107 * [backup-simplify]: Simplify y into y 0.107 * [backup-simplify]: Simplify (* 0 y) into 0 0.107 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y 0.107 * [backup-simplify]: Simplify (/ 0.5 y) into (/ 0.5 y) 0.107 * [taylor]: Taking taylor expansion of (/ 0.5 y) in y 0.107 * [taylor]: Taking taylor expansion of 0.5 in y 0.107 * [backup-simplify]: Simplify 0.5 into 0.5 0.107 * [taylor]: Taking taylor expansion of y in y 0.107 * [backup-simplify]: Simplify 0 into 0 0.107 * [backup-simplify]: Simplify 1 into 1 0.107 * [backup-simplify]: Simplify (/ 0.5 1) into 0.5 0.107 * [backup-simplify]: Simplify 0.5 into 0.5 0.108 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 y))) into 0 0.108 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)))) into 0 0.108 * [taylor]: Taking taylor expansion of 0 in y 0.108 * [backup-simplify]: Simplify 0 into 0 0.109 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)))) into 0 0.109 * [backup-simplify]: Simplify 0 into 0 0.110 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 y)))) into 0 0.111 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0 0.111 * [taylor]: Taking taylor expansion of 0 in y 0.111 * [backup-simplify]: Simplify 0 into 0 0.111 * [backup-simplify]: Simplify 0 into 0 0.122 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)) (* 0 (/ 0 1)))) into 0 0.122 * [backup-simplify]: Simplify 0 into 0 0.124 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 y))))) into 0 0.124 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0 0.124 * [taylor]: Taking taylor expansion of 0 in y 0.124 * [backup-simplify]: Simplify 0 into 0 0.124 * [backup-simplify]: Simplify 0 into 0 0.124 * [backup-simplify]: Simplify 0 into 0 0.125 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0 0.125 * [backup-simplify]: Simplify 0 into 0 0.125 * [backup-simplify]: Simplify (* 0.5 (* (/ 1 (/ 1 (- y))) (/ 1 (/ 1 (- x))))) into (* 0.5 (* x y)) 0.125 * * * [progress]: simplifying candidates 0.126 * [simplify]: Simplifying: (- (+ (log x) (log y)) (log 2.0)) (- (log (* x y)) (log 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 y) (* x y)) (* x y)) (* (* 2.0 2.0) 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) (/ x (* (cbrt 2.0) (cbrt 2.0))) (/ y (cbrt 2.0)) (/ x (sqrt 2.0)) (/ y (sqrt 2.0)) (/ x 1) (/ y 2.0) (/ 1 2.0) (/ 2.0 (* x y)) (/ (* x y) (* (cbrt 2.0) (cbrt 2.0))) (/ (* x y) (sqrt 2.0)) (/ (* x y) 1) (/ 2.0 y) (* 0.5 (* x y)) (* 0.5 (* x y)) (* 0.5 (* x y)) 0.127 * * [simplify]: Extracting # 0 : cost 0 0.127 * * [simplify]: Extracting # 1 : cost 0 0.127 * * [simplify]: Extracting # 2 : cost 0 0.127 * * [simplify]: Extracting # 3 : cost 0 0.127 * * [simplify]: Extracting # 4 : cost 0 0.127 * * [simplify]: Extracting # 5 : cost 0 0.127 * * [simplify]: Extracting # 6 : cost 0 0.127 * * [simplify]: iteration 0 : 50 enodes (cost 186 ) 0.146 * * [simplify]: Extracting # 0 : cost 0 0.147 * * [simplify]: Extracting # 1 : cost 0 0.147 * * [simplify]: Extracting # 2 : cost 0 0.147 * * [simplify]: iteration 1 : 124 enodes (cost 179 ) 0.202 * * [simplify]: Extracting # 0 : cost 0 0.204 * * [simplify]: Extracting # 1 : cost 0 0.205 * * [simplify]: Extracting # 2 : cost 0 0.206 * * [simplify]: Extracting # 3 : cost 0 0.208 * * [simplify]: Extracting # 4 : cost 0 0.209 * * [simplify]: iteration 2 : 656 enodes (cost 155 ) 0.795 * * [simplify]: Extracting # 0 : cost 0 0.806 * * [simplify]: Extracting # 1 : cost 0 0.815 * * [simplify]: Extracting # 2 : cost 0 0.825 * * [simplify]: Extracting # 3 : cost 0 0.833 * * [simplify]: Extracting # 4 : cost 0 0.847 * * [simplify]: Extracting # 5 : cost 0 0.857 * * [simplify]: Extracting # 6 : cost 0 0.867 * * [simplify]: iteration done: 5000 enodes (cost 149 ) 0.867 * [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) (/ x (* (cbrt 2.0) (cbrt 2.0))) (/ y (cbrt 2.0)) (/ x (sqrt 2.0)) (/ y (sqrt 2.0)) x (/ y 2.0) (/ 1 2.0) (/ 2.0 (* x y)) (/ (* x y) (* (cbrt 2.0) (cbrt 2.0))) (/ (* x y) (sqrt 2.0)) (* x y) (/ 2.0 y) (* (* x y) 0.5) (* (* x y) 0.5) (* (* x y) 0.5) 0.868 * * * [progress]: adding candidates to table 0.933 * [progress]: [Phase 3 of 3] Extracting. 0.935 * [simplify]: Simplifying: (- (/ (* x y) 2.0) (/ z 8.0)) 0.935 * * [simplify]: Extracting # 0 : cost 0 0.935 * * [simplify]: Extracting # 1 : cost 0 0.935 * * [simplify]: Extracting # 2 : cost 0 0.935 * * [simplify]: Extracting # 3 : cost 0 0.935 * * [simplify]: Extracting # 4 : cost 0 0.935 * * [simplify]: Extracting # 5 : cost 0 0.935 * * [simplify]: iteration 0 : 9 enodes (cost 9 ) 0.936 * * [simplify]: Extracting # 0 : cost 0 0.936 * * [simplify]: iteration 1 : 10 enodes (cost 9 ) 0.936 * * [simplify]: Extracting # 0 : cost 0 0.936 * * [simplify]: iteration done: 10 enodes (cost 9 ) 0.936 * [simplify]: Simplified to: (- (/ (* x y) 2.0) (/ z 8.0)) 1.700 * [regime-testing]: Baseline error score: 0.014501812726590823 1.702 * [regime-testing]: Oracle error score: 0.014501812726590823 1.702 * [regime-testing]: End program error score: 0.014501812726590823