0.869 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.251 * * * [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))
0.260 * * [simplify]: iteration  0 :  9  enodes  (cost  3 )
0.261 * * [simplify]: iteration  1 :  16  enodes  (cost  3 )
0.262 * * [simplify]: iteration  2 :  26  enodes  (cost  3 )
0.264 * * [simplify]: iteration  3 :  33  enodes  (cost  3 )
0.265 * * [simplify]: iteration  4 :  33  enodes  (cost  3 )
0.265 * [simplify]: Simplified to:
   (* 0.5 (- (* x x) y))
0.267 * * [progress]: iteration 1 / 4
0.267 * * * [progress]: picking best candidate
0.269 * * * * [pick]: Picked  #<alt (λ (x y) (* 0.5 (- (* x x) y)))>
0.269 * * * [progress]: localizing error
0.275 * * * [progress]: generating rewritten candidates
0.275 * * * * [progress]: [ 1 / 1 ] rewriting at (2 2)
0.283 * * * [progress]: generating series expansions
0.283 * * * * [progress]: [ 1 / 1 ] generating series at (2 2)
0.288 * [approximate]: Taking taylor expansion of (- (pow x 2) y) in (x y) around 0
0.289 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in y
0.289 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.289 * [taylor]: Taking taylor expansion of x in y
0.290 * [taylor]: Taking taylor expansion of y in y
0.290 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in x
0.290 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.290 * [taylor]: Taking taylor expansion of x in x
0.290 * [taylor]: Taking taylor expansion of y in x
0.290 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in x
0.290 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.290 * [taylor]: Taking taylor expansion of x in x
0.290 * [taylor]: Taking taylor expansion of y in x
0.291 * [taylor]: Taking taylor expansion of (- y) in y
0.291 * [taylor]: Taking taylor expansion of y in y
0.292 * [taylor]: Taking taylor expansion of 0 in y
0.293 * [taylor]: Taking taylor expansion of 1 in y
0.295 * [taylor]: Taking taylor expansion of 0 in y
0.295 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in (x y) around 0
0.295 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in y
0.295 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.296 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.296 * [taylor]: Taking taylor expansion of x in y
0.296 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.296 * [taylor]: Taking taylor expansion of y in y
0.296 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.296 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.296 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.296 * [taylor]: Taking taylor expansion of x in x
0.297 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.297 * [taylor]: Taking taylor expansion of y in x
0.297 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.297 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.297 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.297 * [taylor]: Taking taylor expansion of x in x
0.297 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.297 * [taylor]: Taking taylor expansion of y in x
0.298 * [taylor]: Taking taylor expansion of 1 in y
0.299 * [taylor]: Taking taylor expansion of 0 in y
0.300 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in y
0.300 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.300 * [taylor]: Taking taylor expansion of y in y
0.302 * [taylor]: Taking taylor expansion of 0 in y
0.305 * [taylor]: Taking taylor expansion of 0 in y
0.306 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in (x y) around 0
0.306 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in y
0.306 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.306 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.306 * [taylor]: Taking taylor expansion of x in y
0.306 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.306 * [taylor]: Taking taylor expansion of y in y
0.306 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.306 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.306 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.306 * [taylor]: Taking taylor expansion of x in x
0.307 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.307 * [taylor]: Taking taylor expansion of y in x
0.307 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.307 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.307 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.307 * [taylor]: Taking taylor expansion of x in x
0.307 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.307 * [taylor]: Taking taylor expansion of y in x
0.308 * [taylor]: Taking taylor expansion of 1 in y
0.309 * [taylor]: Taking taylor expansion of 0 in y
0.310 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.310 * [taylor]: Taking taylor expansion of y in y
0.312 * [taylor]: Taking taylor expansion of 0 in y
0.314 * [taylor]: Taking taylor expansion of 0 in y
0.314 * * * [progress]: simplifying candidates
0.314 * [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)))
  (- y)
  (- (* (* x x) (* x x)) (* y y))
  (+ (* x x) y)
  (+ x (sqrt y))
  (- x (sqrt y))
  (- y)
  (- (pow x 2) y)
  (- (pow x 2) y)
  (- (pow x 2) y)
0.317 * * [simplify]: iteration  0 :  73  enodes  (cost  63 )
0.319 * * [simplify]: iteration  1 :  216  enodes  (cost  56 )
0.323 * * [simplify]: iteration  2 :  535  enodes  (cost  56 )
0.336 * * [simplify]: iteration  3 :  1794  enodes  (cost  56 )
0.379 * * [simplify]: iteration  4 :  5001  enodes  (cost  56 )
0.380 * [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 (- (pow x 2) y) 3)
  (sqrt (- (* x x) y))
  (sqrt (- (* x x) y))
  (- (pow (* x x) 3) (pow y 3))
  (+ (+ (pow x 4) (* (* x x) y)) (* y y))
  (- 0 y)
  (+ (- (* y y)) (pow x 4))
  (+ (* x x) y)
  (+ x (sqrt y))
  (- x (sqrt y))
  (- 0 y)
  (- (pow x 2) y)
  (- (pow x 2) y)
  (- (pow x 2) y)
0.380 * * * [progress]: adding candidates to table
0.423 * [progress]: [Phase 3 of 3] Extracting.
0.424 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* 0.5 (- (* x x) y))
0.425 * * [simplify]: iteration  0 :  7  enodes  (cost  3 )
0.425 * * [simplify]: iteration  1 :  7  enodes  (cost  3 )
0.425 * [simplify]: Simplified to:
   (* 0.5 (- (* x x) y))
0.814 * [regime-testing]: End program error score: 0.046505813226653335