22.999 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.014 * * * [progress]: [2/2] Setting up program.
0.016 * [progress]: [Phase 2 of 3] Improving.
0.016 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (/ (- x y) (* (* x 2.0) y))
0.018 * * [simplify]: iteration  0 :  18  enodes  (cost  4 )
0.020 * * [simplify]: iteration  1 :  48  enodes  (cost  4 )
0.021 * * [simplify]: iteration  2 :  106  enodes  (cost  4 )
0.023 * * [simplify]: iteration  3 :  174  enodes  (cost  4 )
0.026 * * [simplify]: iteration  4 :  198  enodes  (cost  4 )
0.028 * * [simplify]: iteration  5 :  203  enodes  (cost  4 )
0.030 * * [simplify]: iteration  6 :  203  enodes  (cost  4 )
0.030 * [simplify]: Simplified to:
   (/ (- x y) (* (* x 2.0) y))
0.031 * * [progress]: iteration 1 / 4
0.031 * * * [progress]: picking best candidate
0.032 * * * * [pick]: Picked  #<alt (λ (x y) (/ (- x y) (* (* x 2.0) y)))>
0.032 * * * [progress]: localizing error
0.037 * * * [progress]: generating rewritten candidates
0.037 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.047 * * * [progress]: generating series expansions
0.047 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.047 * [approximate]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in (x y) around 0
0.047 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in y
0.047 * [taylor]: Taking taylor expansion of 0.5 in y
0.047 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in y
0.047 * [taylor]: Taking taylor expansion of (- x y) in y
0.047 * [taylor]: Taking taylor expansion of x in y
0.047 * [taylor]: Taking taylor expansion of y in y
0.047 * [taylor]: Taking taylor expansion of (* x y) in y
0.047 * [taylor]: Taking taylor expansion of x in y
0.047 * [taylor]: Taking taylor expansion of y in y
0.048 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in x
0.048 * [taylor]: Taking taylor expansion of 0.5 in x
0.048 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in x
0.048 * [taylor]: Taking taylor expansion of (- x y) in x
0.048 * [taylor]: Taking taylor expansion of x in x
0.048 * [taylor]: Taking taylor expansion of y in x
0.048 * [taylor]: Taking taylor expansion of (* x y) in x
0.048 * [taylor]: Taking taylor expansion of x in x
0.048 * [taylor]: Taking taylor expansion of y in x
0.048 * [taylor]: Taking taylor expansion of (* 0.5 (/ (- x y) (* x y))) in x
0.048 * [taylor]: Taking taylor expansion of 0.5 in x
0.048 * [taylor]: Taking taylor expansion of (/ (- x y) (* x y)) in x
0.048 * [taylor]: Taking taylor expansion of (- x y) in x
0.048 * [taylor]: Taking taylor expansion of x in x
0.049 * [taylor]: Taking taylor expansion of y in x
0.049 * [taylor]: Taking taylor expansion of (* x y) in x
0.049 * [taylor]: Taking taylor expansion of x in x
0.049 * [taylor]: Taking taylor expansion of y in x
0.049 * [taylor]: Taking taylor expansion of -0.5 in y
0.051 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.051 * [taylor]: Taking taylor expansion of 0.5 in y
0.051 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.051 * [taylor]: Taking taylor expansion of y in y
0.053 * [taylor]: Taking taylor expansion of 0 in y
0.056 * [taylor]: Taking taylor expansion of 0 in y
0.060 * [taylor]: Taking taylor expansion of 0 in y
0.060 * [approximate]: Taking taylor expansion of (* 0.5 (* (- (/ 1 x) (/ 1 y)) (* x y))) in (x y) around 0
0.060 * [taylor]: Taking taylor expansion of (* 0.5 (* (- (/ 1 x) (/ 1 y)) (* x y))) in y
0.060 * [taylor]: Taking taylor expansion of 0.5 in y
0.060 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (* x y)) in y
0.060 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
0.060 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.060 * [taylor]: Taking taylor expansion of x in y
0.060 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.060 * [taylor]: Taking taylor expansion of y in y
0.060 * [taylor]: Taking taylor expansion of (* x y) in y
0.060 * [taylor]: Taking taylor expansion of x in y
0.060 * [taylor]: Taking taylor expansion of y in y
0.060 * [taylor]: Taking taylor expansion of (* 0.5 (* (- (/ 1 x) (/ 1 y)) (* x y))) in x
0.060 * [taylor]: Taking taylor expansion of 0.5 in x
0.060 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (* x y)) in x
0.060 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.060 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.060 * [taylor]: Taking taylor expansion of x 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 (* x y) in x
0.061 * [taylor]: Taking taylor expansion of x in x
0.061 * [taylor]: Taking taylor expansion of y in x
0.061 * [taylor]: Taking taylor expansion of (* 0.5 (* (- (/ 1 x) (/ 1 y)) (* x y))) in x
0.061 * [taylor]: Taking taylor expansion of 0.5 in x
0.061 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (* x y)) in x
0.061 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) 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 (/ 1 y) in x
0.061 * [taylor]: Taking taylor expansion of y in x
0.061 * [taylor]: Taking taylor expansion of (* x y) in x
0.061 * [taylor]: Taking taylor expansion of x in x
0.061 * [taylor]: Taking taylor expansion of y in x
0.062 * [taylor]: Taking taylor expansion of 0 in y
0.063 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
0.063 * [taylor]: Taking taylor expansion of 0.5 in y
0.063 * [taylor]: Taking taylor expansion of y in y
0.066 * [taylor]: Taking taylor expansion of (- 0.5) in y
0.066 * [taylor]: Taking taylor expansion of 0.5 in y
0.070 * [taylor]: Taking taylor expansion of 0 in y
0.075 * [taylor]: Taking taylor expansion of 0 in y
0.080 * [taylor]: Taking taylor expansion of 0 in y
0.080 * [approximate]: Taking taylor expansion of (* 0.5 (* x (* y (- (/ 1 y) (/ 1 x))))) in (x y) around 0
0.080 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* y (- (/ 1 y) (/ 1 x))))) in y
0.080 * [taylor]: Taking taylor expansion of 0.5 in y
0.080 * [taylor]: Taking taylor expansion of (* x (* y (- (/ 1 y) (/ 1 x)))) in y
0.081 * [taylor]: Taking taylor expansion of x in y
0.081 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in y
0.081 * [taylor]: Taking taylor expansion of y in y
0.081 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
0.081 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.081 * [taylor]: Taking taylor expansion of y in y
0.081 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.081 * [taylor]: Taking taylor expansion of x in y
0.081 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* y (- (/ 1 y) (/ 1 x))))) in x
0.081 * [taylor]: Taking taylor expansion of 0.5 in x
0.081 * [taylor]: Taking taylor expansion of (* x (* y (- (/ 1 y) (/ 1 x)))) in x
0.081 * [taylor]: Taking taylor expansion of x in x
0.081 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in x
0.081 * [taylor]: Taking taylor expansion of y in x
0.081 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.081 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.081 * [taylor]: Taking taylor expansion of y in x
0.081 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.081 * [taylor]: Taking taylor expansion of x in x
0.081 * [taylor]: Taking taylor expansion of (* 0.5 (* x (* y (- (/ 1 y) (/ 1 x))))) in x
0.081 * [taylor]: Taking taylor expansion of 0.5 in x
0.081 * [taylor]: Taking taylor expansion of (* x (* y (- (/ 1 y) (/ 1 x)))) in x
0.081 * [taylor]: Taking taylor expansion of x in x
0.081 * [taylor]: Taking taylor expansion of (* y (- (/ 1 y) (/ 1 x))) in x
0.081 * [taylor]: Taking taylor expansion of y in x
0.081 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.081 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.081 * [taylor]: Taking taylor expansion of y in x
0.082 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.082 * [taylor]: Taking taylor expansion of x in x
0.083 * [taylor]: Taking taylor expansion of 0 in y
0.084 * [taylor]: Taking taylor expansion of (- (* 0.5 y)) in y
0.084 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
0.084 * [taylor]: Taking taylor expansion of 0.5 in y
0.084 * [taylor]: Taking taylor expansion of y in y
0.086 * [taylor]: Taking taylor expansion of 0.5 in y
0.090 * [taylor]: Taking taylor expansion of 0 in y
0.095 * [taylor]: Taking taylor expansion of 0 in y
0.103 * [taylor]: Taking taylor expansion of 0 in y
0.103 * * * [progress]: simplifying candidates
0.104 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (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))
  (/ x (* (* x 2.0) y))
  (/ 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)
  (/ (+ (sqrt x) (sqrt y)) (* x 2.0))
  (/ (- (sqrt x) (sqrt 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) (- (sqrt x) (sqrt 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)))
0.114 * * [simplify]: iteration  0 :  242  enodes  (cost  218 )
0.121 * * [simplify]: iteration  1 :  990  enodes  (cost  181 )
0.151 * * [simplify]: iteration  2 :  5002  enodes  (cost  180 )
0.153 * [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))
  (/ 1 (* 2.0 y))
  (/ 1 (* x 2.0))
  (/ (* (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)
  (/ (+ (sqrt x) (sqrt y)) (* x 2.0))
  (/ (- (sqrt x) (sqrt 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) (- (sqrt x) (sqrt y)))
  (/ (* (* x 2.0) y) (- x y))
  (* (* x 2.0) (* y (fma x x (fma y y (* x y)))))
  (* (* (* x 2.0) y) (+ x y))
  (* 0.5 (- (/ 1 y) (/ 1 x)))
  (* 0.5 (- (/ 1 y) (/ 1 x)))
  (* 0.5 (- (/ 1 y) (/ 1 x)))
0.154 * * * [progress]: adding candidates to table
0.205 * * [progress]: iteration 2 / 4
0.205 * * * [progress]: picking best candidate
0.206 * * * * [pick]: Picked  #<alt (λ (x y) (- (/ 1 (* 2.0 y)) (/ 1 (* x 2.0))))>
0.206 * * * [progress]: localizing error
0.216 * * * [progress]: generating rewritten candidates
0.216 * * * [progress]: generating series expansions
0.216 * * * [progress]: simplifying candidates
0.216 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.218 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.218 * [simplify]: Simplified to:
   
0.218 * * * [progress]: adding candidates to table
0.218 * [progress]: [Phase 3 of 3] Extracting.
0.220 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (/ 1 (* 2.0 y)) (/ 1 (* x 2.0)))
0.220 * * [simplify]: iteration  0 :  13  enodes  (cost  5 )
0.221 * * [simplify]: iteration  1 :  13  enodes  (cost  5 )
0.221 * [simplify]: Simplified to:
   (- (/ 1 (* 2.0 y)) (/ 1 (* x 2.0)))
0.608 * [regime-testing]: End program error score: 0.016637478644704794
0.624 * [regime-testing]: Target error score: 0.014001750218777347