8.700 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.027 * * * [progress]: [2/2] Setting up program.
0.030 * [progress]: [Phase 2 of 3] Improving.
0.030 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ (+ (/ x 2.0) (* y x)) z)
0.033 * * [simplify]: iteration  0 :  13  enodes  (cost  4 )
0.034 * * [simplify]: iteration  1 :  20  enodes  (cost  4 )
0.036 * * [simplify]: iteration  2 :  22  enodes  (cost  4 )
0.037 * * [simplify]: iteration  3 :  22  enodes  (cost  4 )
0.037 * [simplify]: Simplified to:
   (+ (+ (/ x 2.0) (* y x)) z)
0.038 * * [progress]: iteration 1 / 4
0.038 * * * [progress]: picking best candidate
0.039 * * * * [pick]: Picked  #<alt (λ (x y z) (+ (+ (/ x 2.0) (* y x)) z))>
0.039 * * * [progress]: localizing error
0.046 * * * [progress]: generating rewritten candidates
0.046 * * * * [progress]: [ 1 / 1 ] rewriting at (2 1)
0.054 * * * [progress]: generating series expansions
0.054 * * * * [progress]: [ 1 / 1 ] generating series at (2 1)
0.054 * [approximate]: Taking taylor expansion of (+ (* 0.5 x) (* x y)) in (x y) around 0
0.054 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* x y)) in y
0.054 * [taylor]: Taking taylor expansion of (* 0.5 x) in y
0.054 * [taylor]: Taking taylor expansion of 0.5 in y
0.054 * [taylor]: Taking taylor expansion of x in y
0.054 * [taylor]: Taking taylor expansion of (* x y) in y
0.054 * [taylor]: Taking taylor expansion of x in y
0.054 * [taylor]: Taking taylor expansion of y in y
0.054 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* x y)) in x
0.054 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
0.054 * [taylor]: Taking taylor expansion of 0.5 in x
0.054 * [taylor]: Taking taylor expansion of x in x
0.054 * [taylor]: Taking taylor expansion of (* x y) in x
0.054 * [taylor]: Taking taylor expansion of x in x
0.054 * [taylor]: Taking taylor expansion of y in x
0.054 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* x y)) in x
0.054 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
0.054 * [taylor]: Taking taylor expansion of 0.5 in x
0.054 * [taylor]: Taking taylor expansion of x in x
0.055 * [taylor]: Taking taylor expansion of (* x y) in x
0.055 * [taylor]: Taking taylor expansion of x in x
0.055 * [taylor]: Taking taylor expansion of y in x
0.055 * [taylor]: Taking taylor expansion of 0 in y
0.057 * [taylor]: Taking taylor expansion of (+ y 0.5) in y
0.057 * [taylor]: Taking taylor expansion of y in y
0.057 * [taylor]: Taking taylor expansion of 0.5 in y
0.058 * [taylor]: Taking taylor expansion of 0 in y
0.060 * [taylor]: Taking taylor expansion of 0 in y
0.063 * [taylor]: Taking taylor expansion of 0 in y
0.063 * [approximate]: Taking taylor expansion of (+ (/ 1 (* x y)) (* 0.5 (/ 1 x))) in (x y) around 0
0.063 * [taylor]: Taking taylor expansion of (+ (/ 1 (* x y)) (* 0.5 (/ 1 x))) in y
0.063 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
0.063 * [taylor]: Taking taylor expansion of (* x y) in y
0.063 * [taylor]: Taking taylor expansion of x in y
0.063 * [taylor]: Taking taylor expansion of y in y
0.064 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y
0.064 * [taylor]: Taking taylor expansion of 0.5 in y
0.064 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.064 * [taylor]: Taking taylor expansion of x in y
0.064 * [taylor]: Taking taylor expansion of (+ (/ 1 (* x y)) (* 0.5 (/ 1 x))) in x
0.064 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.064 * [taylor]: Taking taylor expansion of (* x y) in x
0.064 * [taylor]: Taking taylor expansion of x in x
0.064 * [taylor]: Taking taylor expansion of y in x
0.064 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.064 * [taylor]: Taking taylor expansion of 0.5 in x
0.064 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.064 * [taylor]: Taking taylor expansion of x in x
0.064 * [taylor]: Taking taylor expansion of (+ (/ 1 (* x y)) (* 0.5 (/ 1 x))) in x
0.064 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.064 * [taylor]: Taking taylor expansion of (* x y) in x
0.064 * [taylor]: Taking taylor expansion of x in x
0.064 * [taylor]: Taking taylor expansion of y in x
0.065 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.065 * [taylor]: Taking taylor expansion of 0.5 in x
0.065 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.065 * [taylor]: Taking taylor expansion of x in x
0.066 * [taylor]: Taking taylor expansion of (+ (/ 1 y) 0.5) in y
0.066 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.066 * [taylor]: Taking taylor expansion of y in y
0.066 * [taylor]: Taking taylor expansion of 0.5 in y
0.068 * [taylor]: Taking taylor expansion of 0 in y
0.072 * [taylor]: Taking taylor expansion of 0 in y
0.075 * [taylor]: Taking taylor expansion of 0 in y
0.079 * [taylor]: Taking taylor expansion of 0 in y
0.079 * [approximate]: Taking taylor expansion of (- (/ 1 (* x y)) (* 0.5 (/ 1 x))) in (x y) around 0
0.079 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (* 0.5 (/ 1 x))) in y
0.079 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
0.079 * [taylor]: Taking taylor expansion of (* x y) in y
0.079 * [taylor]: Taking taylor expansion of x in y
0.079 * [taylor]: Taking taylor expansion of y in y
0.079 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y
0.079 * [taylor]: Taking taylor expansion of 0.5 in y
0.079 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.079 * [taylor]: Taking taylor expansion of x in y
0.080 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (* 0.5 (/ 1 x))) in x
0.080 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.080 * [taylor]: Taking taylor expansion of (* x y) in x
0.080 * [taylor]: Taking taylor expansion of x in x
0.080 * [taylor]: Taking taylor expansion of y in x
0.080 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.080 * [taylor]: Taking taylor expansion of 0.5 in x
0.080 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.080 * [taylor]: Taking taylor expansion of x in x
0.080 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (* 0.5 (/ 1 x))) in x
0.080 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.080 * [taylor]: Taking taylor expansion of (* x y) in x
0.080 * [taylor]: Taking taylor expansion of x in x
0.080 * [taylor]: Taking taylor expansion of y in x
0.081 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.081 * [taylor]: Taking taylor expansion of 0.5 in x
0.081 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.081 * [taylor]: Taking taylor expansion of x in x
0.082 * [taylor]: Taking taylor expansion of (- (/ 1 y) 0.5) in y
0.082 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.082 * [taylor]: Taking taylor expansion of y in y
0.082 * [taylor]: Taking taylor expansion of 0.5 in y
0.084 * [taylor]: Taking taylor expansion of 0 in y
0.088 * [taylor]: Taking taylor expansion of 0 in y
0.092 * [taylor]: Taking taylor expansion of 0 in y
0.096 * [taylor]: Taking taylor expansion of 0 in y
0.096 * * * [progress]: simplifying candidates
0.097 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* (exp (/ x 2.0)) (exp (* y x)))
  (log (+ (/ x 2.0) (* y x)))
  (exp (+ (/ x 2.0) (* y x)))
  (* (cbrt (+ (/ x 2.0) (* y x))) (cbrt (+ (/ x 2.0) (* y x))))
  (cbrt (+ (/ x 2.0) (* y x)))
  (* (* (+ (/ x 2.0) (* y x)) (+ (/ x 2.0) (* y x))) (+ (/ x 2.0) (* y x)))
  (sqrt (+ (/ x 2.0) (* y x)))
  (sqrt (+ (/ x 2.0) (* y x)))
  (+ (pow (/ x 2.0) 3) (pow (* y x) 3))
  (+ (* (/ x 2.0) (/ x 2.0)) (- (* (* y x) (* y x)) (* (/ x 2.0) (* y x))))
  (- (* (/ x 2.0) (/ x 2.0)) (* (* y x) (* y x)))
  (- (/ x 2.0) (* y x))
  (+ (* 0.5 x) (* x y))
  (+ (* 0.5 x) (* x y))
  (+ (* 0.5 x) (* x y))
0.100 * * [simplify]: iteration  0 :  93  enodes  (cost  77 )
0.103 * * [simplify]: iteration  1 :  295  enodes  (cost  67 )
0.108 * * [simplify]: iteration  2 :  803  enodes  (cost  67 )
0.124 * * [simplify]: iteration  3 :  2115  enodes  (cost  65 )
0.168 * * [simplify]: iteration  4 :  5001  enodes  (cost  65 )
0.168 * [simplify]: Simplified to:
   (exp (+ (/ x 2.0) (* y x)))
  (log (+ (/ x 2.0) (* y x)))
  (exp (+ (/ x 2.0) (* y x)))
  (* (cbrt (+ (/ x 2.0) (* y x))) (cbrt (+ (/ x 2.0) (* y x))))
  (cbrt (+ (/ x 2.0) (* y x)))
  (pow (+ (/ x 2.0) (* y x)) 3)
  (sqrt (+ (/ x 2.0) (* y x)))
  (sqrt (+ (/ x 2.0) (* y x)))
  (+ (pow (/ x 2.0) 3) (pow (* y x) 3))
  (* x (+ (/ (/ x 2.0) 2.0) (* y (- (* y x) (/ x 2.0)))))
  (* x (- (/ (/ x 2.0) 2.0) (* (* y x) y)))
  (- (/ x 2.0) (* y x))
  (* x (+ y 0.5))
  (* x (+ y 0.5))
  (* x (+ y 0.5))
0.169 * * * [progress]: adding candidates to table
0.199 * * [progress]: iteration 2 / 4
0.199 * * * [progress]: picking best candidate
0.200 * * * * [pick]: Picked  #<alt (λ (x y z) (+ (* x (+ y 0.5)) z))>
0.200 * * * [progress]: localizing error
0.205 * * * [progress]: generating rewritten candidates
0.205 * * * * [progress]: [ 1 / 1 ] rewriting at (2 1)
0.215 * * * [progress]: generating series expansions
0.215 * * * * [progress]: [ 1 / 1 ] generating series at (2 1)
0.215 * [approximate]: Taking taylor expansion of (* x (+ y 0.5)) in (x y) around 0
0.215 * [taylor]: Taking taylor expansion of (* x (+ y 0.5)) in y
0.215 * [taylor]: Taking taylor expansion of x in y
0.215 * [taylor]: Taking taylor expansion of (+ y 0.5) in y
0.215 * [taylor]: Taking taylor expansion of y in y
0.215 * [taylor]: Taking taylor expansion of 0.5 in y
0.215 * [taylor]: Taking taylor expansion of (* x (+ y 0.5)) in x
0.215 * [taylor]: Taking taylor expansion of x in x
0.215 * [taylor]: Taking taylor expansion of (+ y 0.5) in x
0.215 * [taylor]: Taking taylor expansion of y in x
0.215 * [taylor]: Taking taylor expansion of 0.5 in x
0.215 * [taylor]: Taking taylor expansion of (* x (+ y 0.5)) in x
0.215 * [taylor]: Taking taylor expansion of x in x
0.215 * [taylor]: Taking taylor expansion of (+ y 0.5) in x
0.215 * [taylor]: Taking taylor expansion of y in x
0.215 * [taylor]: Taking taylor expansion of 0.5 in x
0.216 * [taylor]: Taking taylor expansion of 0 in y
0.216 * [taylor]: Taking taylor expansion of (+ y 0.5) in y
0.216 * [taylor]: Taking taylor expansion of y in y
0.216 * [taylor]: Taking taylor expansion of 0.5 in y
0.218 * [taylor]: Taking taylor expansion of 0 in y
0.219 * [taylor]: Taking taylor expansion of 0 in y
0.221 * [taylor]: Taking taylor expansion of 0 in y
0.221 * [approximate]: Taking taylor expansion of (/ (+ (/ 1 y) 0.5) x) in (x y) around 0
0.221 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 y) 0.5) x) in y
0.221 * [taylor]: Taking taylor expansion of (+ (/ 1 y) 0.5) in y
0.221 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.221 * [taylor]: Taking taylor expansion of y in y
0.221 * [taylor]: Taking taylor expansion of 0.5 in y
0.222 * [taylor]: Taking taylor expansion of x in y
0.222 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 y) 0.5) x) in x
0.222 * [taylor]: Taking taylor expansion of (+ (/ 1 y) 0.5) in x
0.222 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.222 * [taylor]: Taking taylor expansion of y in x
0.222 * [taylor]: Taking taylor expansion of 0.5 in x
0.222 * [taylor]: Taking taylor expansion of x in x
0.222 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 y) 0.5) x) in x
0.222 * [taylor]: Taking taylor expansion of (+ (/ 1 y) 0.5) in x
0.222 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.222 * [taylor]: Taking taylor expansion of y in x
0.222 * [taylor]: Taking taylor expansion of 0.5 in x
0.222 * [taylor]: Taking taylor expansion of x in x
0.222 * [taylor]: Taking taylor expansion of (+ (/ 1 y) 0.5) in y
0.222 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.222 * [taylor]: Taking taylor expansion of y in y
0.223 * [taylor]: Taking taylor expansion of 0.5 in y
0.224 * [taylor]: Taking taylor expansion of 0 in y
0.226 * [taylor]: Taking taylor expansion of 0 in y
0.228 * [taylor]: Taking taylor expansion of 0 in y
0.231 * [taylor]: Taking taylor expansion of 0 in y
0.231 * [approximate]: Taking taylor expansion of (* -1 (/ (- 0.5 (/ 1 y)) x)) in (x y) around 0
0.231 * [taylor]: Taking taylor expansion of (* -1 (/ (- 0.5 (/ 1 y)) x)) in y
0.231 * [taylor]: Taking taylor expansion of -1 in y
0.231 * [taylor]: Taking taylor expansion of (/ (- 0.5 (/ 1 y)) x) in y
0.231 * [taylor]: Taking taylor expansion of (- 0.5 (/ 1 y)) in y
0.231 * [taylor]: Taking taylor expansion of 0.5 in y
0.231 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.231 * [taylor]: Taking taylor expansion of y in y
0.231 * [taylor]: Taking taylor expansion of x in y
0.232 * [taylor]: Taking taylor expansion of (* -1 (/ (- 0.5 (/ 1 y)) x)) in x
0.232 * [taylor]: Taking taylor expansion of -1 in x
0.232 * [taylor]: Taking taylor expansion of (/ (- 0.5 (/ 1 y)) x) in x
0.232 * [taylor]: Taking taylor expansion of (- 0.5 (/ 1 y)) in x
0.232 * [taylor]: Taking taylor expansion of 0.5 in x
0.232 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.232 * [taylor]: Taking taylor expansion of y in x
0.232 * [taylor]: Taking taylor expansion of x in x
0.232 * [taylor]: Taking taylor expansion of (* -1 (/ (- 0.5 (/ 1 y)) x)) in x
0.232 * [taylor]: Taking taylor expansion of -1 in x
0.232 * [taylor]: Taking taylor expansion of (/ (- 0.5 (/ 1 y)) x) in x
0.232 * [taylor]: Taking taylor expansion of (- 0.5 (/ 1 y)) in x
0.232 * [taylor]: Taking taylor expansion of 0.5 in x
0.232 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.232 * [taylor]: Taking taylor expansion of y in x
0.232 * [taylor]: Taking taylor expansion of x in x
0.233 * [taylor]: Taking taylor expansion of (* -1 (- 0.5 (/ 1 y))) in y
0.233 * [taylor]: Taking taylor expansion of -1 in y
0.233 * [taylor]: Taking taylor expansion of (- 0.5 (/ 1 y)) in y
0.233 * [taylor]: Taking taylor expansion of 0.5 in y
0.233 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.233 * [taylor]: Taking taylor expansion of y in y
0.235 * [taylor]: Taking taylor expansion of 0 in y
0.243 * [taylor]: Taking taylor expansion of 0 in y
0.247 * [taylor]: Taking taylor expansion of 0 in y
0.252 * [taylor]: Taking taylor expansion of 0 in y
0.252 * * * [progress]: simplifying candidates
0.253 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* x (+ y 0.5))
  (+ (log x) (log (+ y 0.5)))
  (log (* x (+ y 0.5)))
  (exp (* x (+ y 0.5)))
  (* (* (* x x) x) (* (* (+ y 0.5) (+ y 0.5)) (+ y 0.5)))
  (* (cbrt (* x (+ y 0.5))) (cbrt (* x (+ y 0.5))))
  (cbrt (* x (+ y 0.5)))
  (* (* (* x (+ y 0.5)) (* x (+ y 0.5))) (* x (+ y 0.5)))
  (sqrt (* x (+ y 0.5)))
  (sqrt (* x (+ y 0.5)))
  (* (sqrt x) (sqrt (+ y 0.5)))
  (* (sqrt x) (sqrt (+ y 0.5)))
  (* x y)
  (* x 0.5)
  (* y x)
  (* 0.5 x)
  (* x (* (cbrt (+ y 0.5)) (cbrt (+ y 0.5))))
  (* x (sqrt (+ y 0.5)))
  (* x 1)
  (* x 1)
  (* (cbrt x) (+ y 0.5))
  (* (sqrt x) (+ y 0.5))
  (* x (+ y 0.5))
  (* x (+ (pow y 3) (pow 0.5 3)))
  (* x (- (* y y) (* 0.5 0.5)))
  (+ (* 0.5 x) (* x y))
  (+ (* 0.5 x) (* x y))
  (+ (* 0.5 x) (* x y))
0.256 * * [simplify]: iteration  0 :  126  enodes  (cost  86 )
0.259 * * [simplify]: iteration  1 :  534  enodes  (cost  76 )
0.269 * * [simplify]: iteration  2 :  2147  enodes  (cost  76 )
0.300 * * [simplify]: iteration  3 :  5001  enodes  (cost  76 )
0.301 * [simplify]: Simplified to:
   (* x (+ y 0.5))
  (log (* x (+ y 0.5)))
  (log (* x (+ y 0.5)))
  (exp (* x (+ y 0.5)))
  (pow (* x (+ y 0.5)) 3)
  (* (cbrt (* x (+ y 0.5))) (cbrt (* x (+ y 0.5))))
  (cbrt (* x (+ y 0.5)))
  (pow (* x (+ y 0.5)) 3)
  (sqrt (* x (+ y 0.5)))
  (sqrt (* x (+ y 0.5)))
  (* (sqrt x) (sqrt (+ y 0.5)))
  (* (sqrt x) (sqrt (+ y 0.5)))
  (* x y)
  (* x 0.5)
  (* x y)
  (* x 0.5)
  (* x (* (cbrt (+ y 0.5)) (cbrt (+ y 0.5))))
  (* x (sqrt (+ y 0.5)))
  x
  x
  (* (cbrt x) (+ y 0.5))
  (* (sqrt x) (+ y 0.5))
  (* x (+ y 0.5))
  (* x (+ (pow y 3) (pow 0.5 3)))
  (* x (- (* y y) (* 0.5 0.5)))
  (* x (+ y 0.5))
  (* x (+ y 0.5))
  (* x (+ y 0.5))
0.301 * * * [progress]: adding candidates to table
0.340 * [progress]: [Phase 3 of 3] Extracting.
0.342 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ (* x (+ y 0.5)) z)
0.342 * * [simplify]: iteration  0 :  10  enodes  (cost  3 )
0.342 * * [simplify]: iteration  1 :  10  enodes  (cost  3 )
0.342 * [simplify]: Simplified to:
   (+ (* x (+ y 0.5)) z)
1.049 * [regime-testing]: End program error score: 0.009876234529316165