68.777 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.005 * * * * [points]: Sampling 256 additional inputs, on iter 0 have 0 / 256
0.007 * * * * [points]: Computing exacts on every 16 of 256 points to ramp up precision
0.007 * * * * [points]: Setting MPFR precision to 64
0.007 * * * * [points]: Setting MPFR precision to 320
0.007 * * * * [points]: Computing exacts on every 8 of 256 points to ramp up precision
0.008 * * * * [points]: Setting MPFR precision to 64
0.008 * * * * [points]: Setting MPFR precision to 320
0.008 * * * * [points]: Computing exacts on every 4 of 256 points to ramp up precision
0.008 * * * * [points]: Setting MPFR precision to 64
0.009 * * * * [points]: Setting MPFR precision to 320
0.010 * * * * [points]: Computing exacts on every 2 of 256 points to ramp up precision
0.010 * * * * [points]: Setting MPFR precision to 64
0.011 * * * * [points]: Setting MPFR precision to 320
0.012 * * * * [points]: Computing exacts for 256 points
0.012 * * * * [points]: Setting MPFR precision to 64
0.016 * * * * [points]: Setting MPFR precision to 320
0.020 * * * * [points]: Filtering points with unrepresentable outputs
0.020 * * * * [points]: Sampled 256 points with exact outputs
0.026 * * * [progress]: [2/2] Setting up program.
0.028 * [progress]: [Phase 2 of 3] Improving.
0.029 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ x (/ (- y x) 2.0))
0.042 * * [simplify]: iteration  0 :  356  enodes  (cost  7 )
0.042 * * [simplify]: iteration  1 :  356  enodes  (cost  7 )
0.043 * [simplify]: Simplified to:
   (+ x (/ (- y x) 2.0))
0.043 * * [progress]: iteration 1 / 4
0.043 * * * [progress]: picking best candidate
0.046 * * * * [pick]: Picked  #<alt (λ (x y) (+ x (/ (- y x) 2.0)))>
0.046 * * * [progress]: localizing error
0.051 * * * [progress]: generating rewritten candidates
0.051 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.059 * * * [progress]: generating series expansions
0.059 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.059 * [approximate]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in (x y) around 0
0.060 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in y
0.060 * [taylor]: Taking taylor expansion of (* 0.5 x) in y
0.060 * [taylor]: Taking taylor expansion of 0.5 in y
0.060 * [taylor]: Taking taylor expansion of x in y
0.060 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
0.060 * [taylor]: Taking taylor expansion of 0.5 in y
0.060 * [taylor]: Taking taylor expansion of y in y
0.060 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in x
0.060 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
0.060 * [taylor]: Taking taylor expansion of 0.5 in x
0.060 * [taylor]: Taking taylor expansion of x in x
0.060 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
0.060 * [taylor]: Taking taylor expansion of 0.5 in x
0.060 * [taylor]: Taking taylor expansion of y in x
0.060 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* 0.5 y)) in x
0.060 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
0.060 * [taylor]: Taking taylor expansion of 0.5 in x
0.060 * [taylor]: Taking taylor expansion of x in x
0.060 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
0.060 * [taylor]: Taking taylor expansion of 0.5 in x
0.060 * [taylor]: Taking taylor expansion of y in x
0.060 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
0.060 * [taylor]: Taking taylor expansion of 0.5 in y
0.060 * [taylor]: Taking taylor expansion of y in y
0.060 * [taylor]: Taking taylor expansion of 0.5 in y
0.060 * [taylor]: Taking taylor expansion of 0 in y
0.060 * [taylor]: Taking taylor expansion of 0 in y
0.061 * [approximate]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in (x y) around 0
0.061 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in y
0.061 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.061 * [taylor]: Taking taylor expansion of 0.5 in y
0.061 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.061 * [taylor]: Taking taylor expansion of y in y
0.061 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y
0.061 * [taylor]: Taking taylor expansion of 0.5 in y
0.061 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.061 * [taylor]: Taking taylor expansion of x in y
0.061 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in x
0.061 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
0.061 * [taylor]: Taking taylor expansion of 0.5 in x
0.061 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.061 * [taylor]: Taking taylor expansion of y in x
0.061 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.061 * [taylor]: Taking taylor expansion of 0.5 in x
0.061 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.061 * [taylor]: Taking taylor expansion of x in x
0.061 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in x
0.061 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
0.061 * [taylor]: Taking taylor expansion of 0.5 in x
0.061 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.061 * [taylor]: Taking taylor expansion of y in x
0.061 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.061 * [taylor]: Taking taylor expansion of 0.5 in x
0.061 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.061 * [taylor]: Taking taylor expansion of x in x
0.061 * [taylor]: Taking taylor expansion of 0.5 in y
0.061 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.061 * [taylor]: Taking taylor expansion of 0.5 in y
0.061 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.061 * [taylor]: Taking taylor expansion of y in y
0.061 * [taylor]: Taking taylor expansion of 0 in y
0.062 * [taylor]: Taking taylor expansion of 0 in y
0.062 * [taylor]: Taking taylor expansion of 0 in y
0.062 * [approximate]: Taking taylor expansion of (neg (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))) in (x y) around 0
0.062 * [taylor]: Taking taylor expansion of (neg (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))) in y
0.062 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in y
0.062 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.062 * [taylor]: Taking taylor expansion of 0.5 in y
0.062 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.062 * [taylor]: Taking taylor expansion of y in y
0.062 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y
0.063 * [taylor]: Taking taylor expansion of 0.5 in y
0.063 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.063 * [taylor]: Taking taylor expansion of x in y
0.063 * [taylor]: Taking taylor expansion of (neg (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))) in x
0.063 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in x
0.063 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
0.063 * [taylor]: Taking taylor expansion of 0.5 in x
0.063 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.063 * [taylor]: Taking taylor expansion of y in x
0.063 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.063 * [taylor]: Taking taylor expansion of 0.5 in x
0.063 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.063 * [taylor]: Taking taylor expansion of x in x
0.063 * [taylor]: Taking taylor expansion of (neg (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x)))) in x
0.063 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 0.5 (/ 1 x))) in x
0.063 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
0.063 * [taylor]: Taking taylor expansion of 0.5 in x
0.063 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.063 * [taylor]: Taking taylor expansion of y in x
0.063 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.063 * [taylor]: Taking taylor expansion of 0.5 in x
0.063 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.063 * [taylor]: Taking taylor expansion of x in x
0.063 * [taylor]: Taking taylor expansion of (neg 0.5) in y
0.063 * [taylor]: Taking taylor expansion of 0.5 in y
0.063 * [taylor]: Taking taylor expansion of (neg (* 0.5 (/ 1 y))) in y
0.063 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.063 * [taylor]: Taking taylor expansion of 0.5 in y
0.063 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.063 * [taylor]: Taking taylor expansion of y in y
0.064 * [taylor]: Taking taylor expansion of 0 in y
0.064 * [taylor]: Taking taylor expansion of 0 in y
0.064 * [taylor]: Taking taylor expansion of 0 in y
0.064 * * * [progress]: simplifying candidates
0.065 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* (exp x) (exp (/ (- y x) 2.0)))
  (log (+ x (/ (- y x) 2.0)))
  (exp (+ x (/ (- y x) 2.0)))
  (* (cbrt (+ x (/ (- y x) 2.0))) (cbrt (+ x (/ (- y x) 2.0))))
  (cbrt (+ x (/ (- y x) 2.0)))
  (* (* (+ x (/ (- y x) 2.0)) (+ x (/ (- y x) 2.0))) (+ x (/ (- y x) 2.0)))
  (sqrt (+ x (/ (- y x) 2.0)))
  (sqrt (+ x (/ (- y x) 2.0)))
  (+ (pow x 3) (pow (/ (- y x) 2.0) 3))
  (+ (* x x) (- (* (/ (- y x) 2.0) (/ (- y x) 2.0)) (* x (/ (- y x) 2.0))))
  (- (* x x) (* (/ (- y x) 2.0) (/ (- y x) 2.0)))
  (- x (/ (- y x) 2.0))
  (+ x (/ (- y x) 2.0))
  (+ x (/ y 2.0))
  (+ (* 0.5 x) (* 0.5 y))
  (+ (* 0.5 x) (* 0.5 y))
  (+ (* 0.5 x) (* 0.5 y))
0.102 * * [simplify]: iteration  0 :  5329  enodes  (cost  151 )
0.103 * [simplify]: Simplified to:
   (exp (+ x (/ (- y x) 2.0)))
  (log (+ x (/ (- y x) 2.0)))
  (exp (+ x (/ (- y x) 2.0)))
  (* (cbrt (+ x (/ (- y x) 2.0))) (cbrt (+ x (/ (- y x) 2.0))))
  (cbrt (+ x (/ (- y x) 2.0)))
  (pow (+ x (/ (- y x) 2.0)) 3)
  (sqrt (+ x (/ (- y x) 2.0)))
  (sqrt (+ x (/ (- y x) 2.0)))
  (+ (pow x 3) (pow (/ (- y x) 2.0) 3))
  (+ (* x x) (* (/ (- y x) 2.0) (- (/ (- y x) 2.0) x)))
  (+ (* x x) (* (- y x) (/ (/ (- x y) 2.0) 2.0)))
  (+ x (/ (- x y) 2.0))
  (+ x (/ (- y x) 2.0))
  (+ x (/ y 2.0))
  (* 0.5 (+ x y))
  (* 0.5 (+ x y))
  (* 0.5 (+ x y))
0.103 * * * [progress]: adding candidates to table
0.126 * * [progress]: iteration 2 / 4
0.126 * * * [progress]: picking best candidate
0.129 * * * * [pick]: Picked  #<alt (λ (x y) (* 0.5 (+ x y)))>
0.129 * * * [progress]: localizing error
0.133 * * * [progress]: generating rewritten candidates
0.133 * * * [progress]: generating series expansions
0.133 * * * [progress]: simplifying candidates
0.133 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.135 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.135 * [simplify]: Simplified to:
   
0.135 * * * [progress]: adding candidates to table
0.135 * [progress]: [Phase 3 of 3] Extracting.
0.138 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* 0.5 (+ x y))
0.138 * * [simplify]: iteration  0 :  7  enodes  (cost  5 )
0.139 * * [simplify]: iteration  1 :  7  enodes  (cost  5 )
0.139 * [simplify]: Simplified to:
   (* 0.5 (+ x y))
0.139 * * * * [points]: Sampling 8000 additional inputs, on iter 0 have 0 / 8000
0.205 * * * * [points]: Computing exacts on every 500 of 8000 points to ramp up precision
0.205 * * * * [points]: Setting MPFR precision to 64
0.206 * * * * [points]: Setting MPFR precision to 320
0.206 * * * * [points]: Computing exacts on every 250 of 8000 points to ramp up precision
0.206 * * * * [points]: Setting MPFR precision to 64
0.206 * * * * [points]: Setting MPFR precision to 320
0.207 * * * * [points]: Computing exacts on every 125 of 8000 points to ramp up precision
0.207 * * * * [points]: Setting MPFR precision to 64
0.208 * * * * [points]: Setting MPFR precision to 320
0.209 * * * * [points]: Computing exacts on every 62 of 8000 points to ramp up precision
0.209 * * * * [points]: Setting MPFR precision to 64
0.210 * * * * [points]: Setting MPFR precision to 320
0.212 * * * * [points]: Computing exacts on every 31 of 8000 points to ramp up precision
0.212 * * * * [points]: Setting MPFR precision to 64
0.216 * * * * [points]: Setting MPFR precision to 320
0.219 * * * * [points]: Computing exacts on every 15 of 8000 points to ramp up precision
0.220 * * * * [points]: Setting MPFR precision to 64
0.227 * * * * [points]: Setting MPFR precision to 320
0.234 * * * * [points]: Computing exacts on every 7 of 8000 points to ramp up precision
0.234 * * * * [points]: Setting MPFR precision to 64
0.251 * * * * [points]: Setting MPFR precision to 320
0.266 * * * * [points]: Computing exacts on every 3 of 8000 points to ramp up precision
0.266 * * * * [points]: Setting MPFR precision to 64
0.294 * * * * [points]: Setting MPFR precision to 320
0.323 * * * * [points]: Computing exacts for 8000 points
0.323 * * * * [points]: Setting MPFR precision to 64
0.438 * * * * [points]: Setting MPFR precision to 320
0.591 * * * * [points]: Filtering points with unrepresentable outputs
0.604 * * * * [points]: Sampled 8000 points with exact outputs
1.003 * [regime-testing]: End program error score: 0
1.082 * [regime-testing]: Target error score: 0