34.318 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.019 * * * [progress]: [2/2] Setting up program.
0.020 * [progress]: [Phase 2 of 3] Improving.
0.020 * [simplify]: Simplifying:
  (/ (+ x y) (* (* x 2.0) y))
0.020 * * [simplify]: Extracting # 0 : cost  0
0.020 * * [simplify]: Extracting # 1 : cost  0
0.020 * * [simplify]: Extracting # 2 : cost  0
0.020 * * [simplify]: Extracting # 3 : cost  0
0.021 * * [simplify]: Extracting # 4 : cost  0
0.021 * * [simplify]: iteration  0 :  7  enodes  (cost  9 )
0.022 * * [simplify]: Extracting # 0 : cost  0
0.022 * * [simplify]: Extracting # 1 : cost  0
0.022 * * [simplify]: Extracting # 2 : cost  0
0.022 * * [simplify]: iteration  1 :  14  enodes  (cost  9 )
0.024 * * [simplify]: Extracting # 0 : cost  0
0.024 * * [simplify]: Extracting # 1 : cost  0
0.024 * * [simplify]: Extracting # 2 : cost  0
0.024 * * [simplify]: iteration  2 :  28  enodes  (cost  9 )
0.030 * * [simplify]: Extracting # 0 : cost  0
0.030 * * [simplify]: Extracting # 1 : cost  0
0.030 * * [simplify]: Extracting # 2 : cost  0
0.030 * * [simplify]: iteration  3 :  43  enodes  (cost  9 )
0.036 * * [simplify]: Extracting # 0 : cost  0
0.036 * * [simplify]: iteration  4 :  47  enodes  (cost  9 )
0.041 * * [simplify]: Extracting # 0 : cost  0
0.041 * * [simplify]: iteration done:  47  enodes  (cost  9 )
0.041 * [simplify]: Simplified to:
  (/ (+ x y) (* (* x 2.0) y))
0.042 * * [progress]: iteration 1 / 4
0.042 * * * [progress]: picking best candidate
0.049 * * * * [pick]: Picked  #<alt (λ (x y) (/ (+ x y) (* (* x 2.0) y)))>
0.049 * * * [progress]: localizing error
0.056 * * * [progress]: generating rewritten candidates
0.056 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.103 * * * [progress]: generating series expansions
0.103 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.104 * [backup-simplify]: Simplify (/ (+ x y) (* (* x 2.0) y)) into (* 0.5 (/ (+ x y) (* x y)))
0.104 * [approximate]: Taking taylor expansion of (* 0.5 (/ (+ x y) (* x y))) in (x y) around 0
0.104 * [taylor]: Taking taylor expansion of (* 0.5 (/ (+ x y) (* x y))) in y
0.104 * [taylor]: Taking taylor expansion of 0.5 in y
0.104 * [backup-simplify]: Simplify 0.5 into 0.5
0.104 * [taylor]: Taking taylor expansion of (/ (+ x y) (* x y)) in y
0.104 * [taylor]: Taking taylor expansion of (+ x y) in y
0.104 * [taylor]: Taking taylor expansion of x in y
0.104 * [backup-simplify]: Simplify x into x
0.104 * [taylor]: Taking taylor expansion of y in y
0.104 * [backup-simplify]: Simplify 0 into 0
0.104 * [backup-simplify]: Simplify 1 into 1
0.104 * [taylor]: Taking taylor expansion of (* x y) in y
0.104 * [taylor]: Taking taylor expansion of x in y
0.104 * [backup-simplify]: Simplify x into x
0.104 * [taylor]: Taking taylor expansion of y in y
0.104 * [backup-simplify]: Simplify 0 into 0
0.104 * [backup-simplify]: Simplify 1 into 1
0.104 * [backup-simplify]: Simplify (+ x 0) into x
0.104 * [backup-simplify]: Simplify (* x 0) into 0
0.105 * [backup-simplify]: Simplify (+ (* x 1) (* 0 0)) into x
0.105 * [backup-simplify]: Simplify (/ x x) into 1
0.105 * [taylor]: Taking taylor expansion of (* 0.5 (/ (+ x y) (* x y))) in x
0.105 * [taylor]: Taking taylor expansion of 0.5 in x
0.105 * [backup-simplify]: Simplify 0.5 into 0.5
0.105 * [taylor]: Taking taylor expansion of (/ (+ x y) (* x y)) in x
0.105 * [taylor]: Taking taylor expansion of (+ x y) in x
0.105 * [taylor]: Taking taylor expansion of x in x
0.105 * [backup-simplify]: Simplify 0 into 0
0.105 * [backup-simplify]: Simplify 1 into 1
0.105 * [taylor]: Taking taylor expansion of y in x
0.105 * [backup-simplify]: Simplify y into y
0.105 * [taylor]: Taking taylor expansion of (* x y) in x
0.105 * [taylor]: Taking taylor expansion of x in x
0.105 * [backup-simplify]: Simplify 0 into 0
0.105 * [backup-simplify]: Simplify 1 into 1
0.105 * [taylor]: Taking taylor expansion of y in x
0.105 * [backup-simplify]: Simplify y into y
0.105 * [backup-simplify]: Simplify (+ 0 y) into y
0.105 * [backup-simplify]: Simplify (* 0 y) into 0
0.106 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
0.106 * [backup-simplify]: Simplify (/ y y) into 1
0.106 * [taylor]: Taking taylor expansion of (* 0.5 (/ (+ x y) (* 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) (* x y)) in x
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 * [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 y
0.106 * [backup-simplify]: Simplify (* 0 y) into 0
0.107 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
0.107 * [backup-simplify]: Simplify (/ y y) into 1
0.107 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
0.107 * [taylor]: Taking taylor expansion of 0.5 in y
0.107 * [backup-simplify]: Simplify 0.5 into 0.5
0.108 * [backup-simplify]: Simplify (+ 1 0) into 1
0.108 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 y))) into 0
0.109 * [backup-simplify]: Simplify (- (/ 1 y) (+ (* 1 (/ 0 y)))) into (/ 1 y)
0.109 * [backup-simplify]: Simplify (+ (* 0.5 (/ 1 y)) (* 0 1)) into (* 0.5 (/ 1 y))
0.109 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.109 * [taylor]: Taking taylor expansion of 0.5 in y
0.109 * [backup-simplify]: Simplify 0.5 into 0.5
0.109 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.109 * [taylor]: Taking taylor expansion of y in y
0.109 * [backup-simplify]: Simplify 0 into 0
0.109 * [backup-simplify]: Simplify 1 into 1
0.110 * [backup-simplify]: Simplify (/ 1 1) into 1
0.110 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
0.110 * [backup-simplify]: Simplify 0.5 into 0.5
0.110 * [backup-simplify]: Simplify 0.5 into 0.5
0.110 * [backup-simplify]: Simplify (+ 0 0) into 0
0.111 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 y)))) into 0
0.111 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* 1 (/ 0 y)) (* (/ 1 y) (/ 0 y)))) into 0
0.112 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 (/ 1 y)) (* 0 1))) into 0
0.112 * [taylor]: Taking taylor expansion of 0 in y
0.112 * [backup-simplify]: Simplify 0 into 0
0.113 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
0.113 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0
0.113 * [backup-simplify]: Simplify 0 into 0
0.114 * [backup-simplify]: Simplify 0 into 0
0.114 * [backup-simplify]: Simplify (+ 0 0) into 0
0.115 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 y))))) into 0
0.115 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* 1 (/ 0 y)) (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.116 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 (/ 1 y)) (* 0 1)))) into 0
0.116 * [taylor]: Taking taylor expansion of 0 in y
0.116 * [backup-simplify]: Simplify 0 into 0
0.116 * [backup-simplify]: Simplify 0 into 0
0.117 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.118 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0
0.118 * [backup-simplify]: Simplify 0 into 0
0.118 * [backup-simplify]: Simplify 0 into 0
0.118 * [backup-simplify]: Simplify (+ 0 0) into 0
0.120 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 y)))))) into 0
0.120 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* 1 (/ 0 y)) (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.122 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (/ 1 y)) (* 0 1))))) into 0
0.122 * [taylor]: Taking taylor expansion of 0 in y
0.122 * [backup-simplify]: Simplify 0 into 0
0.122 * [backup-simplify]: Simplify 0 into 0
0.122 * [backup-simplify]: Simplify (+ (* 0.5 (* 1 (/ 1 x))) (* 0.5 (* (/ 1 y) 1))) into (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))
0.123 * [backup-simplify]: Simplify (/ (+ (/ 1 x) (/ 1 y)) (* (* (/ 1 x) 2.0) (/ 1 y))) into (* 0.5 (* (+ (/ 1 y) (/ 1 x)) (* y x)))
0.123 * [approximate]: Taking taylor expansion of (* 0.5 (* (+ (/ 1 y) (/ 1 x)) (* y x))) in (x y) around 0
0.123 * [taylor]: Taking taylor expansion of (* 0.5 (* (+ (/ 1 y) (/ 1 x)) (* y x))) in y
0.123 * [taylor]: Taking taylor expansion of 0.5 in y
0.123 * [backup-simplify]: Simplify 0.5 into 0.5
0.123 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (* y x)) in y
0.123 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
0.123 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.123 * [taylor]: Taking taylor expansion of y in y
0.123 * [backup-simplify]: Simplify 0 into 0
0.123 * [backup-simplify]: Simplify 1 into 1
0.123 * [backup-simplify]: Simplify (/ 1 1) into 1
0.123 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.123 * [taylor]: Taking taylor expansion of x in y
0.123 * [backup-simplify]: Simplify x into x
0.123 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
0.123 * [taylor]: Taking taylor expansion of (* y x) in y
0.123 * [taylor]: Taking taylor expansion of y in y
0.123 * [backup-simplify]: Simplify 0 into 0
0.123 * [backup-simplify]: Simplify 1 into 1
0.123 * [taylor]: Taking taylor expansion of x in y
0.123 * [backup-simplify]: Simplify x into x
0.123 * [taylor]: Taking taylor expansion of (* 0.5 (* (+ (/ 1 y) (/ 1 x)) (* y x))) in x
0.123 * [taylor]: Taking taylor expansion of 0.5 in x
0.123 * [backup-simplify]: Simplify 0.5 into 0.5
0.123 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (* y x)) in x
0.123 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.123 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.123 * [taylor]: Taking taylor expansion of y in x
0.123 * [backup-simplify]: Simplify y into y
0.123 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
0.123 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.123 * [taylor]: Taking taylor expansion of x in x
0.123 * [backup-simplify]: Simplify 0 into 0
0.123 * [backup-simplify]: Simplify 1 into 1
0.124 * [backup-simplify]: Simplify (/ 1 1) into 1
0.124 * [taylor]: Taking taylor expansion of (* y x) in x
0.124 * [taylor]: Taking taylor expansion of y in x
0.124 * [backup-simplify]: Simplify y into y
0.124 * [taylor]: Taking taylor expansion of x in x
0.124 * [backup-simplify]: Simplify 0 into 0
0.124 * [backup-simplify]: Simplify 1 into 1
0.124 * [taylor]: Taking taylor expansion of (* 0.5 (* (+ (/ 1 y) (/ 1 x)) (* y x))) in x
0.124 * [taylor]: Taking taylor expansion of 0.5 in x
0.124 * [backup-simplify]: Simplify 0.5 into 0.5
0.124 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (* y x)) in x
0.124 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.124 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.124 * [taylor]: Taking taylor expansion of y in x
0.124 * [backup-simplify]: Simplify y into y
0.124 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
0.124 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.124 * [taylor]: Taking taylor expansion of x in x
0.124 * [backup-simplify]: Simplify 0 into 0
0.124 * [backup-simplify]: Simplify 1 into 1
0.124 * [backup-simplify]: Simplify (/ 1 1) into 1
0.124 * [taylor]: Taking taylor expansion of (* y x) in x
0.124 * [taylor]: Taking taylor expansion of y in x
0.124 * [backup-simplify]: Simplify y into y
0.124 * [taylor]: Taking taylor expansion of x in x
0.124 * [backup-simplify]: Simplify 0 into 0
0.124 * [backup-simplify]: Simplify 1 into 1
0.125 * [backup-simplify]: Simplify (+ 0 1) into 1
0.125 * [backup-simplify]: Simplify (* y 0) into 0
0.125 * [backup-simplify]: Simplify (* 1 0) into 0
0.125 * [backup-simplify]: Simplify (* 0.5 0) into 0
0.126 * [taylor]: Taking taylor expansion of 0 in y
0.126 * [backup-simplify]: Simplify 0 into 0
0.126 * [backup-simplify]: Simplify (+ (* y 1) (* 0 0)) into y
0.126 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
0.126 * [backup-simplify]: Simplify (+ (/ 1 y) 0) into (/ 1 y)
0.126 * [backup-simplify]: Simplify (+ (* 1 y) (* (/ 1 y) 0)) into y
0.127 * [backup-simplify]: Simplify (+ (* 0.5 y) (* 0 0)) into (* 0.5 y)
0.127 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
0.127 * [taylor]: Taking taylor expansion of 0.5 in y
0.127 * [backup-simplify]: Simplify 0.5 into 0.5
0.127 * [taylor]: Taking taylor expansion of y in y
0.127 * [backup-simplify]: Simplify 0 into 0
0.127 * [backup-simplify]: Simplify 1 into 1
0.127 * [backup-simplify]: Simplify 0 into 0
0.127 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 1) (* 0 0))) into 0
0.127 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
0.128 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.128 * [backup-simplify]: Simplify (+ 0 0) into 0
0.129 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (/ 1 y) y) (* 0 0))) into 1
0.129 * [backup-simplify]: Simplify (+ (* 0.5 1) (+ (* 0 y) (* 0 0))) into 0.5
0.129 * [taylor]: Taking taylor expansion of 0.5 in y
0.129 * [backup-simplify]: Simplify 0.5 into 0.5
0.129 * [backup-simplify]: Simplify (* 0.5 0) into 0
0.129 * [backup-simplify]: Simplify 0 into 0
0.129 * [backup-simplify]: Simplify 0 into 0
0.130 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
0.130 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.130 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.131 * [backup-simplify]: Simplify (+ 0 0) into 0
0.131 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (/ 1 y) 0) (+ (* 0 y) (* 0 0)))) into 0
0.132 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 1) (+ (* 0 y) (* 0 0)))) into 0
0.132 * [taylor]: Taking taylor expansion of 0 in y
0.132 * [backup-simplify]: Simplify 0 into 0
0.132 * [backup-simplify]: Simplify 0.5 into 0.5
0.133 * [backup-simplify]: Simplify (+ (* 0.5 1) (* 0 0)) into 0.5
0.133 * [backup-simplify]: Simplify 0.5 into 0.5
0.133 * [backup-simplify]: Simplify 0 into 0
0.134 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))) into 0
0.134 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.134 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.134 * [backup-simplify]: Simplify (+ 0 0) into 0
0.135 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (/ 1 y) 0) (+ (* 0 0) (+ (* 0 y) (* 0 0))))) into 0
0.137 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 1) (+ (* 0 y) (* 0 0))))) into 0
0.137 * [taylor]: Taking taylor expansion of 0 in y
0.137 * [backup-simplify]: Simplify 0 into 0
0.137 * [backup-simplify]: Simplify 0 into 0
0.137 * [backup-simplify]: Simplify 0 into 0
0.138 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 1) (* 0 0))) into 0
0.138 * [backup-simplify]: Simplify 0 into 0
0.138 * [backup-simplify]: Simplify 0 into 0
0.139 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))))) into 0
0.139 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.140 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.140 * [backup-simplify]: Simplify (+ 0 0) into 0
0.141 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (/ 1 y) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 y) (* 0 0)))))) into 0
0.143 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (+ (* 0 y) (* 0 0)))))) into 0
0.143 * [taylor]: Taking taylor expansion of 0 in y
0.143 * [backup-simplify]: Simplify 0 into 0
0.143 * [backup-simplify]: Simplify 0 into 0
0.143 * [backup-simplify]: Simplify (+ (* 0.5 (* (/ 1 y) 1)) (* 0.5 (* 1 (/ 1 x)))) into (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))
0.143 * [backup-simplify]: Simplify (/ (+ (/ 1 (- x)) (/ 1 (- y))) (* (* (/ 1 (- x)) 2.0) (/ 1 (- y)))) into (* -0.5 (* (+ (/ 1 y) (/ 1 x)) (* y x)))
0.143 * [approximate]: Taking taylor expansion of (* -0.5 (* (+ (/ 1 y) (/ 1 x)) (* y x))) in (x y) around 0
0.143 * [taylor]: Taking taylor expansion of (* -0.5 (* (+ (/ 1 y) (/ 1 x)) (* y x))) in y
0.143 * [taylor]: Taking taylor expansion of -0.5 in y
0.143 * [backup-simplify]: Simplify -0.5 into -0.5
0.143 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (* y x)) in y
0.143 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
0.144 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.144 * [taylor]: Taking taylor expansion of y in y
0.144 * [backup-simplify]: Simplify 0 into 0
0.144 * [backup-simplify]: Simplify 1 into 1
0.149 * [backup-simplify]: Simplify (/ 1 1) into 1
0.149 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.149 * [taylor]: Taking taylor expansion of x in y
0.149 * [backup-simplify]: Simplify x into x
0.149 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
0.149 * [taylor]: Taking taylor expansion of (* y x) in y
0.149 * [taylor]: Taking taylor expansion of y in y
0.149 * [backup-simplify]: Simplify 0 into 0
0.149 * [backup-simplify]: Simplify 1 into 1
0.149 * [taylor]: Taking taylor expansion of x in y
0.149 * [backup-simplify]: Simplify x into x
0.149 * [taylor]: Taking taylor expansion of (* -0.5 (* (+ (/ 1 y) (/ 1 x)) (* y x))) in x
0.149 * [taylor]: Taking taylor expansion of -0.5 in x
0.149 * [backup-simplify]: Simplify -0.5 into -0.5
0.149 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (* y x)) in x
0.149 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.149 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.149 * [taylor]: Taking taylor expansion of y in x
0.149 * [backup-simplify]: Simplify y into y
0.149 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
0.149 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.149 * [taylor]: Taking taylor expansion of x in x
0.149 * [backup-simplify]: Simplify 0 into 0
0.149 * [backup-simplify]: Simplify 1 into 1
0.150 * [backup-simplify]: Simplify (/ 1 1) into 1
0.150 * [taylor]: Taking taylor expansion of (* y x) in x
0.150 * [taylor]: Taking taylor expansion of y in x
0.150 * [backup-simplify]: Simplify y into y
0.150 * [taylor]: Taking taylor expansion of x in x
0.150 * [backup-simplify]: Simplify 0 into 0
0.150 * [backup-simplify]: Simplify 1 into 1
0.150 * [taylor]: Taking taylor expansion of (* -0.5 (* (+ (/ 1 y) (/ 1 x)) (* y x))) in x
0.150 * [taylor]: Taking taylor expansion of -0.5 in x
0.150 * [backup-simplify]: Simplify -0.5 into -0.5
0.150 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (* y x)) in x
0.150 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.150 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.150 * [taylor]: Taking taylor expansion of y in x
0.150 * [backup-simplify]: Simplify y into y
0.150 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
0.150 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.150 * [taylor]: Taking taylor expansion of x in x
0.150 * [backup-simplify]: Simplify 0 into 0
0.150 * [backup-simplify]: Simplify 1 into 1
0.150 * [backup-simplify]: Simplify (/ 1 1) into 1
0.150 * [taylor]: Taking taylor expansion of (* y x) in x
0.151 * [taylor]: Taking taylor expansion of y in x
0.151 * [backup-simplify]: Simplify y into y
0.151 * [taylor]: Taking taylor expansion of x in x
0.151 * [backup-simplify]: Simplify 0 into 0
0.151 * [backup-simplify]: Simplify 1 into 1
0.151 * [backup-simplify]: Simplify (+ 0 1) into 1
0.151 * [backup-simplify]: Simplify (* y 0) into 0
0.151 * [backup-simplify]: Simplify (* 1 0) into 0
0.152 * [backup-simplify]: Simplify (* -0.5 0) into 0
0.152 * [taylor]: Taking taylor expansion of 0 in y
0.152 * [backup-simplify]: Simplify 0 into 0
0.152 * [backup-simplify]: Simplify (+ (* y 1) (* 0 0)) into y
0.152 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
0.152 * [backup-simplify]: Simplify (+ (/ 1 y) 0) into (/ 1 y)
0.153 * [backup-simplify]: Simplify (+ (* 1 y) (* (/ 1 y) 0)) into y
0.153 * [backup-simplify]: Simplify (+ (* -0.5 y) (* 0 0)) into (- (* 0.5 y))
0.153 * [taylor]: Taking taylor expansion of (- (* 0.5 y)) in y
0.153 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
0.153 * [taylor]: Taking taylor expansion of 0.5 in y
0.153 * [backup-simplify]: Simplify 0.5 into 0.5
0.153 * [taylor]: Taking taylor expansion of y in y
0.153 * [backup-simplify]: Simplify 0 into 0
0.153 * [backup-simplify]: Simplify 1 into 1
0.153 * [backup-simplify]: Simplify 0 into 0
0.153 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 1) (* 0 0))) into 0
0.153 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
0.154 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.154 * [backup-simplify]: Simplify (+ 0 0) into 0
0.155 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (/ 1 y) y) (* 0 0))) into 1
0.155 * [backup-simplify]: Simplify (+ (* -0.5 1) (+ (* 0 y) (* 0 0))) into (- 0.5)
0.155 * [taylor]: Taking taylor expansion of (- 0.5) in y
0.155 * [taylor]: Taking taylor expansion of 0.5 in y
0.155 * [backup-simplify]: Simplify 0.5 into 0.5
0.156 * [backup-simplify]: Simplify (* 0.5 0) into 0
0.156 * [backup-simplify]: Simplify (- 0) into 0
0.156 * [backup-simplify]: Simplify 0 into 0
0.156 * [backup-simplify]: Simplify 0 into 0
0.156 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
0.156 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.157 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.157 * [backup-simplify]: Simplify (+ 0 0) into 0
0.158 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (/ 1 y) 0) (+ (* 0 y) (* 0 0)))) into 0
0.159 * [backup-simplify]: Simplify (+ (* -0.5 0) (+ (* 0 1) (+ (* 0 y) (* 0 0)))) into 0
0.159 * [taylor]: Taking taylor expansion of 0 in y
0.159 * [backup-simplify]: Simplify 0 into 0
0.159 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
0.159 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
0.160 * [backup-simplify]: Simplify (+ (* 0.5 1) (* 0 0)) into 0.5
0.160 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
0.160 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
0.160 * [backup-simplify]: Simplify 0 into 0
0.161 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))) into 0
0.161 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.162 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.162 * [backup-simplify]: Simplify (+ 0 0) into 0
0.163 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (/ 1 y) 0) (+ (* 0 0) (+ (* 0 y) (* 0 0))))) into 0
0.164 * [backup-simplify]: Simplify (+ (* -0.5 0) (+ (* 0 0) (+ (* 0 1) (+ (* 0 y) (* 0 0))))) into 0
0.164 * [taylor]: Taking taylor expansion of 0 in y
0.164 * [backup-simplify]: Simplify 0 into 0
0.164 * [backup-simplify]: Simplify 0 into 0
0.165 * [backup-simplify]: Simplify (- 0) into 0
0.165 * [backup-simplify]: Simplify 0 into 0
0.166 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 1) (* 0 0))) into 0
0.166 * [backup-simplify]: Simplify (- 0) into 0
0.166 * [backup-simplify]: Simplify 0 into 0
0.166 * [backup-simplify]: Simplify 0 into 0
0.167 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))))) into 0
0.167 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.168 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.168 * [backup-simplify]: Simplify (+ 0 0) into 0
0.170 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (/ 1 y) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 y) (* 0 0)))))) into 0
0.171 * [backup-simplify]: Simplify (+ (* -0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (+ (* 0 y) (* 0 0)))))) into 0
0.171 * [taylor]: Taking taylor expansion of 0 in y
0.171 * [backup-simplify]: Simplify 0 into 0
0.171 * [backup-simplify]: Simplify 0 into 0
0.172 * [backup-simplify]: Simplify (+ (* (- 0.5) (* (/ 1 (- y)) 1)) (* (- 0.5) (* 1 (/ 1 (- x))))) into (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))
0.172 * * * [progress]: simplifying candidates
0.173 * [simplify]: Simplifying:
  (expm1 (/ (+ x y) (* (* x 2.0) y)))
  (log1p (/ (+ x y) (* (* x 2.0) y)))
  (- (log (+ x y)) (+ (+ (log x) (log 2.0)) (log y)))
  (- (log (+ x y)) (+ (log (* x 2.0)) (log y)))
  (- (log (+ x y)) (log (* (* x 2.0) y)))
  (log (/ (+ x y) (* (* x 2.0) y)))
  (exp (/ (+ x y) (* (* x 2.0) y)))
  (/ (* (* (+ x y) (+ x y)) (+ x y)) (* (* (* (* x x) x) (* (* 2.0 2.0) 2.0)) (* (* y y) y)))
  (/ (* (* (+ x y) (+ x y)) (+ x y)) (* (* (* (* x 2.0) (* x 2.0)) (* x 2.0)) (* (* y y) y)))
  (/ (* (* (+ x y) (+ x y)) (+ x y)) (* (* (* (* x 2.0) y) (* (* x 2.0) y)) (* (* x 2.0) y)))
  (* (cbrt (/ (+ x y) (* (* x 2.0) y))) (cbrt (/ (+ x y) (* (* x 2.0) y))))
  (cbrt (/ (+ x y) (* (* x 2.0) y)))
  (* (* (/ (+ x y) (* (* x 2.0) y)) (/ (+ x y) (* (* x 2.0) y))) (/ (+ x y) (* (* x 2.0) y)))
  (sqrt (/ (+ x y) (* (* x 2.0) y)))
  (sqrt (/ (+ x y) (* (* x 2.0) y)))
  (- (+ x y))
  (- (* (* x 2.0) y))
  (/ (* (cbrt (+ x y)) (cbrt (+ x y))) (* x 2.0))
  (/ (cbrt (+ x y)) y)
  (/ (sqrt (+ x y)) (* x 2.0))
  (/ (sqrt (+ x y)) y)
  (/ 1 (* x 2.0))
  (/ (+ x y) y)
  (/ 1 (* x 2.0))
  (/ (+ x y) y)
  (/ 1 (* (* x 2.0) y))
  (/ (* (* x 2.0) y) (+ x y))
  (/ (+ x y) (* x 2.0))
  (/ (* (* x 2.0) y) (cbrt (+ x y)))
  (/ (* (* x 2.0) y) (sqrt (+ x y)))
  (/ (* (* x 2.0) y) (+ x y))
  (/ (* (* x 2.0) y) (+ x y))
  (* (* (* x 2.0) y) (+ (* x x) (- (* y y) (* x y))))
  (* (* (* x 2.0) y) (- x y))
  (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))
  (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))
  (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))
0.174 * * [simplify]: Extracting # 0 : cost  0
0.174 * * [simplify]: Extracting # 1 : cost  0
0.174 * * [simplify]: Extracting # 2 : cost  0
0.174 * * [simplify]: Extracting # 3 : cost  0
0.174 * * [simplify]: Extracting # 4 : cost  0
0.175 * * [simplify]: Extracting # 5 : cost  0
0.175 * * [simplify]: Extracting # 6 : cost  0
0.175 * * [simplify]: Extracting # 7 : cost  0
0.175 * * [simplify]: iteration  0 :  75  enodes  (cost  426 )
0.196 * * [simplify]: Extracting # 0 : cost  0
0.197 * * [simplify]: Extracting # 1 : cost  0
0.197 * * [simplify]: Extracting # 2 : cost  0
0.198 * * [simplify]: Extracting # 3 : cost  0
0.198 * * [simplify]: iteration  1 :  222  enodes  (cost  411 )
0.268 * * [simplify]: Extracting # 0 : cost  0
0.270 * * [simplify]: Extracting # 1 : cost  0
0.271 * * [simplify]: Extracting # 2 : cost  0
0.272 * * [simplify]: Extracting # 3 : cost  0
0.273 * * [simplify]: Extracting # 4 : cost  0
0.274 * * [simplify]: Extracting # 5 : cost  0
0.275 * * [simplify]: iteration  2 :  970  enodes  (cost  333 )
0.796 * * [simplify]: Extracting # 0 : cost  0
0.804 * * [simplify]: Extracting # 1 : cost  0
0.816 * * [simplify]: Extracting # 2 : cost  0
0.827 * * [simplify]: Extracting # 3 : cost  0
0.837 * * [simplify]: Extracting # 4 : cost  0
0.847 * * [simplify]: Extracting # 5 : cost  0
0.855 * * [simplify]: iteration done:  5001  enodes  (cost  333 )
0.856 * [simplify]: Simplified to:
  (expm1 (/ (+ x y) (* (* x 2.0) y)))
  (log1p (/ (+ x y) (* (* x 2.0) y)))
  (log (/ (+ x y) (* (* x 2.0) y)))
  (log (/ (+ x y) (* (* x 2.0) y)))
  (log (/ (+ x y) (* (* x 2.0) y)))
  (log (/ (+ x y) (* (* x 2.0) y)))
  (exp (/ (+ x y) (* (* x 2.0) y)))
  (pow (/ (+ x y) (* (* x 2.0) y)) 3)
  (pow (/ (+ x y) (* (* x 2.0) y)) 3)
  (pow (/ (+ x y) (* (* x 2.0) y)) 3)
  (* (cbrt (/ (+ x y) (* (* x 2.0) y))) (cbrt (/ (+ x y) (* (* x 2.0) y))))
  (cbrt (/ (+ x y) (* (* x 2.0) y)))
  (pow (/ (+ x y) (* (* x 2.0) y)) 3)
  (sqrt (/ (+ x y) (* (* x 2.0) y)))
  (sqrt (/ (+ x y) (* (* x 2.0) y)))
  (- (+ x y))
  (- (* (* x 2.0) y))
  (/ (* (cbrt (+ x y)) (cbrt (+ x y))) (* x 2.0))
  (/ (cbrt (+ x y)) y)
  (/ (sqrt (+ x y)) (* x 2.0))
  (/ (sqrt (+ x y)) y)
  (/ 1 (* x 2.0))
  (/ (+ x y) y)
  (/ 1 (* x 2.0))
  (/ (+ x y) y)
  (/ 1 (* (* x 2.0) y))
  (/ (* (* x 2.0) y) (+ x y))
  (/ (+ x y) (* x 2.0))
  (/ (* (* x 2.0) y) (cbrt (+ x y)))
  (/ (* (* x 2.0) y) (sqrt (+ x y)))
  (/ (* (* x 2.0) y) (+ x y))
  (/ (* (* x 2.0) y) (+ x y))
  (* (fma x x (* y (- y x))) (* (* x 2.0) y))
  (* (* (* x 2.0) y) (- x y))
  (+ (/ 0.5 y) (/ 0.5 x))
  (+ (/ 0.5 y) (/ 0.5 x))
  (+ (/ 0.5 y) (/ 0.5 x))
0.856 * * * [progress]: adding candidates to table
0.938 * * [progress]: iteration 2 / 4
0.938 * * * [progress]: picking best candidate
0.940 * * * * [pick]: Picked  #<alt (λ (x y) (+ (/ 0.5 y) (/ 0.5 x)))>
0.940 * * * [progress]: localizing error
0.952 * * * [progress]: generating rewritten candidates
0.952 * * * [progress]: generating series expansions
0.952 * * * [progress]: simplifying candidates
0.952 * [simplify]: Simplifying:
  
0.952 * * [simplify]: Extracting # 0 : cost  0
0.952 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.952 * * [simplify]: Extracting # 0 : cost  0
0.952 * * [simplify]: iteration done:  0  enodes  (cost  0 )
0.952 * [simplify]: Simplified to:
  
0.953 * * * [progress]: adding candidates to table
0.953 * [progress]: [Phase 3 of 3] Extracting.
0.955 * [simplify]: Simplifying:
  (+ (/ 0.5 y) (/ 0.5 x))
0.955 * * [simplify]: Extracting # 0 : cost  0
0.955 * * [simplify]: Extracting # 1 : cost  0
0.955 * * [simplify]: Extracting # 2 : cost  0
0.955 * * [simplify]: Extracting # 3 : cost  0
0.955 * * [simplify]: Extracting # 4 : cost  0
0.955 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
0.956 * * [simplify]: Extracting # 0 : cost  0
0.956 * * [simplify]: iteration  1 :  7  enodes  (cost  7 )
0.956 * * [simplify]: Extracting # 0 : cost  0
0.956 * * [simplify]: iteration done:  7  enodes  (cost  7 )
0.956 * [simplify]: Simplified to:
  (+ (/ 0.5 y) (/ 0.5 x))
1.724 * [regime-testing]: Baseline error score: 0.012324660895202046
1.731 * [regime-testing]: Oracle error score: 0.012324660895202046
1.731 * [regime-testing]: End program error score: 0.012324660895202046
1.760 * [regime-testing]: Target error score: 0.012324660895202046