0.818 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.250 * * * [progress]: [2/2] Setting up program.
0.254 * [progress]: [Phase 2 of 3] Improving.
0.256 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* 0.5 (- (* x x) y))
0.711 * * [simplify]: iteration  0 :  228  enodes  (cost  7 )
0.711 * * [simplify]: iteration  1 :  228  enodes  (cost  7 )
0.712 * [simplify]: Simplified to:
   (* 0.5 (- (* x x) y))
0.716 * * [progress]: iteration 1 / 4
0.716 * * * [progress]: picking best candidate
0.719 * * * * [pick]: Picked  #<alt (λ (x y) (* 0.5 (- (* x x) y)))>
0.719 * * * [progress]: localizing error
0.740 * * * [progress]: generating rewritten candidates
0.740 * * * * [progress]: [ 1 / 1 ] rewriting at (2 2)
0.748 * * * [progress]: generating series expansions
0.748 * * * * [progress]: [ 1 / 1 ] generating series at (2 2)
0.753 * [approximate]: Taking taylor expansion of (- (pow x 2) y) in (x y) around 0
0.753 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in y
0.753 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.753 * [taylor]: Taking taylor expansion of x in y
0.754 * [taylor]: Taking taylor expansion of y in y
0.754 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in x
0.754 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.754 * [taylor]: Taking taylor expansion of x in x
0.754 * [taylor]: Taking taylor expansion of y in x
0.754 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in x
0.754 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.754 * [taylor]: Taking taylor expansion of x in x
0.754 * [taylor]: Taking taylor expansion of y in x
0.755 * [taylor]: Taking taylor expansion of (neg y) in y
0.755 * [taylor]: Taking taylor expansion of y in y
0.755 * [taylor]: Taking taylor expansion of 0 in y
0.755 * [taylor]: Taking taylor expansion of 1 in y
0.755 * [taylor]: Taking taylor expansion of 0 in y
0.756 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in (x y) around 0
0.756 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in y
0.756 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.756 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.756 * [taylor]: Taking taylor expansion of x in y
0.756 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.756 * [taylor]: Taking taylor expansion of y in y
0.756 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.756 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.756 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.756 * [taylor]: Taking taylor expansion of x in x
0.756 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.756 * [taylor]: Taking taylor expansion of y in x
0.756 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.756 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.756 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.756 * [taylor]: Taking taylor expansion of x in x
0.757 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.757 * [taylor]: Taking taylor expansion of y in x
0.757 * [taylor]: Taking taylor expansion of 1 in y
0.757 * [taylor]: Taking taylor expansion of 0 in y
0.757 * [taylor]: Taking taylor expansion of (neg (/ 1 y)) in y
0.757 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.757 * [taylor]: Taking taylor expansion of y in y
0.758 * [taylor]: Taking taylor expansion of 0 in y
0.758 * [taylor]: Taking taylor expansion of 0 in y
0.758 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in (x y) around 0
0.758 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in y
0.758 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.758 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.759 * [taylor]: Taking taylor expansion of x in y
0.759 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.759 * [taylor]: Taking taylor expansion of y in y
0.759 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.759 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.759 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.759 * [taylor]: Taking taylor expansion of x in x
0.759 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.759 * [taylor]: Taking taylor expansion of y in x
0.759 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.759 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.759 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.759 * [taylor]: Taking taylor expansion of x in x
0.759 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.759 * [taylor]: Taking taylor expansion of y in x
0.759 * [taylor]: Taking taylor expansion of 1 in y
0.759 * [taylor]: Taking taylor expansion of 0 in y
0.759 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.759 * [taylor]: Taking taylor expansion of y in y
0.759 * [taylor]: Taking taylor expansion of 0 in y
0.760 * [taylor]: Taking taylor expansion of 0 in y
0.760 * * * [progress]: simplifying candidates
0.760 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (/ (exp (* x x)) (exp y))
  (log (- (* x x) y))
  (exp (- (* x x) y))
  (* (cbrt (- (* x x) y)) (cbrt (- (* x x) y)))
  (cbrt (- (* x x) y))
  (* (* (- (* x x) y) (- (* x x) y)) (- (* x x) y))
  (sqrt (- (* x x) y))
  (sqrt (- (* x x) y))
  (- (pow (* x x) 3) (pow y 3))
  (+ (* (* x x) (* x x)) (+ (* y y) (* (* x x) y)))
  (neg y)
  (- (* (* x x) (* x x)) (* y y))
  (+ (* x x) y)
  (+ x (sqrt y))
  (- x (sqrt y))
  (- (pow x 2) y)
  (- (pow x 2) y)
  (- (pow x 2) y)
0.806 * * [simplify]: iteration  0 :  4808  enodes  (cost  111 )
0.806 * * [simplify]: iteration  1 :  4808  enodes  (cost  111 )
0.807 * [simplify]: Simplified to:
   (exp (- (* x x) y))
  (log (- (* x x) y))
  (exp (- (* x x) y))
  (* (cbrt (- (* x x) y)) (cbrt (- (* x x) y)))
  (cbrt (- (* x x) y))
  (pow (- (* x x) y) 3)
  (sqrt (- (* x x) y))
  (sqrt (- (* x x) y))
  (- (pow x 6) (pow y 3))
  (+ (pow x 4) (* y (+ (* x x) y)))
  (neg y)
  (- (pow x 4) (* y y))
  (+ (* x x) y)
  (+ x (sqrt y))
  (- x (sqrt y))
  (- (* x x) y)
  (- (* x x) y)
  (- (* x x) y)
0.807 * * * [progress]: adding candidates to table
0.826 * [progress]: [Phase 3 of 3] Extracting.
0.829 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* 0.5 (- (* x x) y))
0.830 * * [simplify]: iteration  0 :  17  enodes  (cost  7 )
0.830 * * [simplify]: iteration  1 :  17  enodes  (cost  7 )
0.830 * [simplify]: Simplified to:
   (* 0.5 (- (* x x) y))
1.331 * [regime-testing]: End program error score: 0.029628703587948495