0.879 * [progress]: [Phase 1 of 3] Setting up.
0.002 * * * [progress]: [1/2] Preparing points
0.277 * * * [progress]: [2/2] Setting up program.
0.280 * [progress]: [Phase 2 of 3] Improving.
0.283 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* 0.5 (- (* x x) y))
0.288 * * [simplify]: iteration  0 :  9  enodes  (cost  3 )
0.290 * * [simplify]: iteration  1 :  16  enodes  (cost  3 )
0.291 * * [simplify]: iteration  2 :  26  enodes  (cost  3 )
0.292 * * [simplify]: iteration  3 :  33  enodes  (cost  3 )
0.294 * * [simplify]: iteration  4 :  33  enodes  (cost  3 )
0.294 * [simplify]: Simplified to:
   (* 0.5 (- (* x x) y))
0.296 * * [progress]: iteration 1 / 4
0.296 * * * [progress]: picking best candidate
0.298 * * * * [pick]: Picked  #<alt (λ (x y) (* 0.5 (- (* x x) y)))>
0.298 * * * [progress]: localizing error
0.305 * * * [progress]: generating rewritten candidates
0.305 * * * * [progress]: [ 1 / 1 ] rewriting at (2 2)
0.313 * * * [progress]: generating series expansions
0.313 * * * * [progress]: [ 1 / 1 ] generating series at (2 2)
0.317 * [approximate]: Taking taylor expansion of (- (pow x 2) y) in (x y) around 0
0.318 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in y
0.318 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.318 * [taylor]: Taking taylor expansion of x in y
0.319 * [taylor]: Taking taylor expansion of y in y
0.319 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in x
0.319 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.319 * [taylor]: Taking taylor expansion of x in x
0.319 * [taylor]: Taking taylor expansion of y in x
0.319 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in x
0.319 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.319 * [taylor]: Taking taylor expansion of x in x
0.319 * [taylor]: Taking taylor expansion of y in x
0.320 * [taylor]: Taking taylor expansion of (neg y) in y
0.320 * [taylor]: Taking taylor expansion of y in y
0.321 * [taylor]: Taking taylor expansion of 0 in y
0.322 * [taylor]: Taking taylor expansion of 1 in y
0.323 * [taylor]: Taking taylor expansion of 0 in y
0.324 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in (x y) around 0
0.324 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in y
0.324 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.324 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.324 * [taylor]: Taking taylor expansion of x in y
0.325 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.325 * [taylor]: Taking taylor expansion of y in y
0.325 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.325 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.325 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.325 * [taylor]: Taking taylor expansion of x in x
0.325 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.325 * [taylor]: Taking taylor expansion of y in x
0.325 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.325 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.325 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.325 * [taylor]: Taking taylor expansion of x in x
0.326 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.326 * [taylor]: Taking taylor expansion of y in x
0.326 * [taylor]: Taking taylor expansion of 1 in y
0.328 * [taylor]: Taking taylor expansion of 0 in y
0.329 * [taylor]: Taking taylor expansion of (neg (/ 1 y)) in y
0.329 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.329 * [taylor]: Taking taylor expansion of y in y
0.331 * [taylor]: Taking taylor expansion of 0 in y
0.333 * [taylor]: Taking taylor expansion of 0 in y
0.334 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in (x y) around 0
0.334 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in y
0.334 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.334 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.334 * [taylor]: Taking taylor expansion of x in y
0.334 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.334 * [taylor]: Taking taylor expansion of y in y
0.334 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.334 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.334 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.334 * [taylor]: Taking taylor expansion of x in x
0.335 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.335 * [taylor]: Taking taylor expansion of y in x
0.335 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.335 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.335 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.335 * [taylor]: Taking taylor expansion of x in x
0.336 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.336 * [taylor]: Taking taylor expansion of y in x
0.336 * [taylor]: Taking taylor expansion of 1 in y
0.337 * [taylor]: Taking taylor expansion of 0 in y
0.338 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.338 * [taylor]: Taking taylor expansion of y in y
0.340 * [taylor]: Taking taylor expansion of 0 in y
0.341 * [taylor]: Taking taylor expansion of 0 in y
0.342 * * * [progress]: simplifying candidates
0.342 * [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))
  (neg y)
  (- (pow x 2) y)
  (- (pow x 2) y)
  (- (pow x 2) y)
0.345 * * [simplify]: iteration  0 :  73  enodes  (cost  63 )
0.347 * * [simplify]: iteration  1 :  216  enodes  (cost  56 )
0.351 * * [simplify]: iteration  2 :  535  enodes  (cost  56 )
0.361 * * [simplify]: iteration  3 :  1794  enodes  (cost  56 )
0.407 * * [simplify]: iteration  4 :  5001  enodes  (cost  56 )
0.408 * [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)
  (+ (neg (* 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)
0.409 * * * [progress]: adding candidates to table
0.449 * [progress]: [Phase 3 of 3] Extracting.
0.451 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* 0.5 (- (* x x) y))
0.451 * * [simplify]: iteration  0 :  7  enodes  (cost  3 )
0.452 * * [simplify]: iteration  1 :  7  enodes  (cost  3 )
0.452 * [simplify]: Simplified to:
   (* 0.5 (- (* x x) y))
0.915 * [regime-testing]: End program error score: 0.02105167113673944