0.849 * [progress]: [Phase 1 of 3] Setting up.
0.002 * * * [progress]: [1/2] Preparing points
0.257 * * * [progress]: [2/2] Setting up program.
0.260 * [progress]: [Phase 2 of 3] Improving.
0.262 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* 0.5 (- (* x x) y))
0.268 * * [simplify]: iteration  0 :  9  enodes  (cost  3 )
0.269 * * [simplify]: iteration  1 :  16  enodes  (cost  3 )
0.271 * * [simplify]: iteration  2 :  26  enodes  (cost  3 )
0.272 * * [simplify]: iteration  3 :  33  enodes  (cost  3 )
0.273 * * [simplify]: iteration  4 :  33  enodes  (cost  3 )
0.274 * [simplify]: Simplified to:
   (* 0.5 (- (* x x) y))
0.276 * * [progress]: iteration 1 / 4
0.276 * * * [progress]: picking best candidate
0.277 * * * * [pick]: Picked  #<alt (λ (x y) (* 0.5 (- (* x x) y)))>
0.277 * * * [progress]: localizing error
0.284 * * * [progress]: generating rewritten candidates
0.284 * * * * [progress]: [ 1 / 1 ] rewriting at (2 2)
0.292 * * * [progress]: generating series expansions
0.292 * * * * [progress]: [ 1 / 1 ] generating series at (2 2)
0.297 * [approximate]: Taking taylor expansion of (- (pow x 2) y) in (x y) around 0
0.297 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in y
0.297 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.297 * [taylor]: Taking taylor expansion of x in y
0.298 * [taylor]: Taking taylor expansion of y in y
0.298 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in x
0.298 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.298 * [taylor]: Taking taylor expansion of x in x
0.298 * [taylor]: Taking taylor expansion of y in x
0.298 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in x
0.298 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.298 * [taylor]: Taking taylor expansion of x in x
0.298 * [taylor]: Taking taylor expansion of y in x
0.299 * [taylor]: Taking taylor expansion of (- y) in y
0.299 * [taylor]: Taking taylor expansion of y in y
0.300 * [taylor]: Taking taylor expansion of 0 in y
0.301 * [taylor]: Taking taylor expansion of 1 in y
0.303 * [taylor]: Taking taylor expansion of 0 in y
0.303 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in (x y) around 0
0.303 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in y
0.303 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.303 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.303 * [taylor]: Taking taylor expansion of x in y
0.304 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.304 * [taylor]: Taking taylor expansion of y in y
0.304 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.304 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.304 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.304 * [taylor]: Taking taylor expansion of x in x
0.305 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.305 * [taylor]: Taking taylor expansion of y in x
0.305 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.305 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.305 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.305 * [taylor]: Taking taylor expansion of x in x
0.305 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.305 * [taylor]: Taking taylor expansion of y in x
0.306 * [taylor]: Taking taylor expansion of 1 in y
0.307 * [taylor]: Taking taylor expansion of 0 in y
0.308 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in y
0.308 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.308 * [taylor]: Taking taylor expansion of y in y
0.310 * [taylor]: Taking taylor expansion of 0 in y
0.313 * [taylor]: Taking taylor expansion of 0 in y
0.313 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in (x y) around 0
0.313 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in y
0.313 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.314 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.314 * [taylor]: Taking taylor expansion of x in y
0.314 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.314 * [taylor]: Taking taylor expansion of y in y
0.314 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.314 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.314 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.314 * [taylor]: Taking taylor expansion of x in x
0.315 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.315 * [taylor]: Taking taylor expansion of y in x
0.315 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.315 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.315 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.315 * [taylor]: Taking taylor expansion of x in x
0.315 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.315 * [taylor]: Taking taylor expansion of y in x
0.316 * [taylor]: Taking taylor expansion of 1 in y
0.317 * [taylor]: Taking taylor expansion of 0 in y
0.318 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.318 * [taylor]: Taking taylor expansion of y in y
0.320 * [taylor]: Taking taylor expansion of 0 in y
0.321 * [taylor]: Taking taylor expansion of 0 in y
0.322 * * * [progress]: simplifying candidates
0.322 * [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)
0.325 * * [simplify]: iteration  0 :  73  enodes  (cost  63 )
0.327 * * [simplify]: iteration  1 :  216  enodes  (cost  56 )
0.331 * * [simplify]: iteration  2 :  535  enodes  (cost  56 )
0.342 * * [simplify]: iteration  3 :  1794  enodes  (cost  56 )
0.380 * * [simplify]: iteration  4 :  5001  enodes  (cost  56 )
0.381 * [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)
0.381 * * * [progress]: adding candidates to table
0.422 * * [progress]: iteration 2 / 4
0.422 * * * [progress]: picking best candidate
0.424 * * * * [pick]: Picked  #<alt (λ (x y) (* 0.5 (* (sqrt (- (* x x) y)) (sqrt (- (* x x) y)))))>
0.424 * * * [progress]: localizing error
0.431 * * * [progress]: generating rewritten candidates
0.431 * * * * [progress]: [ 1 / 4 ] rewriting at (2 2)
0.443 * * * * [progress]: [ 2 / 4 ] rewriting at (2 2 2 1)
0.448 * * * * [progress]: [ 3 / 4 ] rewriting at (2 2 1 1)
0.452 * * * * [progress]: [ 4 / 4 ] rewriting at (2 2 2)
0.460 * * * [progress]: generating series expansions
0.460 * * * * [progress]: [ 1 / 4 ] generating series at (2 2)
0.460 * [approximate]: Taking taylor expansion of (- (pow x 2) y) in (x y) around 0
0.460 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in y
0.460 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.460 * [taylor]: Taking taylor expansion of x in y
0.460 * [taylor]: Taking taylor expansion of y in y
0.460 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in x
0.460 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.460 * [taylor]: Taking taylor expansion of x in x
0.460 * [taylor]: Taking taylor expansion of y in x
0.460 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in x
0.460 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.460 * [taylor]: Taking taylor expansion of x in x
0.460 * [taylor]: Taking taylor expansion of y in x
0.461 * [taylor]: Taking taylor expansion of (- y) in y
0.461 * [taylor]: Taking taylor expansion of y in y
0.461 * [taylor]: Taking taylor expansion of 0 in y
0.462 * [taylor]: Taking taylor expansion of 1 in y
0.463 * [taylor]: Taking taylor expansion of 0 in y
0.464 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in (x y) around 0
0.464 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in y
0.464 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.464 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.464 * [taylor]: Taking taylor expansion of x in y
0.464 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.464 * [taylor]: Taking taylor expansion of y in y
0.465 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.465 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.465 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.465 * [taylor]: Taking taylor expansion of x in x
0.465 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.465 * [taylor]: Taking taylor expansion of y in x
0.465 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.465 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.465 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.465 * [taylor]: Taking taylor expansion of x in x
0.466 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.466 * [taylor]: Taking taylor expansion of y in x
0.466 * [taylor]: Taking taylor expansion of 1 in y
0.467 * [taylor]: Taking taylor expansion of 0 in y
0.468 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in y
0.468 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.468 * [taylor]: Taking taylor expansion of y in y
0.470 * [taylor]: Taking taylor expansion of 0 in y
0.473 * [taylor]: Taking taylor expansion of 0 in y
0.473 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in (x y) around 0
0.473 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in y
0.473 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.473 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.473 * [taylor]: Taking taylor expansion of x in y
0.473 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.473 * [taylor]: Taking taylor expansion of y in y
0.474 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.474 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.474 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.474 * [taylor]: Taking taylor expansion of x in x
0.474 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.474 * [taylor]: Taking taylor expansion of y in x
0.474 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.474 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.474 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.474 * [taylor]: Taking taylor expansion of x in x
0.475 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.475 * [taylor]: Taking taylor expansion of y in x
0.475 * [taylor]: Taking taylor expansion of 1 in y
0.476 * [taylor]: Taking taylor expansion of 0 in y
0.477 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.477 * [taylor]: Taking taylor expansion of y in y
0.479 * [taylor]: Taking taylor expansion of 0 in y
0.481 * [taylor]: Taking taylor expansion of 0 in y
0.481 * * * * [progress]: [ 2 / 4 ] generating series at (2 2 2 1)
0.481 * [approximate]: Taking taylor expansion of (- (pow x 2) y) in (x y) around 0
0.481 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in y
0.481 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.481 * [taylor]: Taking taylor expansion of x in y
0.481 * [taylor]: Taking taylor expansion of y in y
0.481 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in x
0.481 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.481 * [taylor]: Taking taylor expansion of x in x
0.481 * [taylor]: Taking taylor expansion of y in x
0.481 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in x
0.481 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.481 * [taylor]: Taking taylor expansion of x in x
0.481 * [taylor]: Taking taylor expansion of y in x
0.481 * [taylor]: Taking taylor expansion of (- y) in y
0.481 * [taylor]: Taking taylor expansion of y in y
0.482 * [taylor]: Taking taylor expansion of 0 in y
0.483 * [taylor]: Taking taylor expansion of 1 in y
0.484 * [taylor]: Taking taylor expansion of 0 in y
0.485 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in (x y) around 0
0.485 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in y
0.485 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.485 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.485 * [taylor]: Taking taylor expansion of x in y
0.485 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.485 * [taylor]: Taking taylor expansion of y in y
0.485 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.485 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.485 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.485 * [taylor]: Taking taylor expansion of x in x
0.486 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.486 * [taylor]: Taking taylor expansion of y in x
0.486 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.486 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.486 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.486 * [taylor]: Taking taylor expansion of x in x
0.486 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.486 * [taylor]: Taking taylor expansion of y in x
0.487 * [taylor]: Taking taylor expansion of 1 in y
0.488 * [taylor]: Taking taylor expansion of 0 in y
0.489 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in y
0.489 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.489 * [taylor]: Taking taylor expansion of y in y
0.491 * [taylor]: Taking taylor expansion of 0 in y
0.497 * [taylor]: Taking taylor expansion of 0 in y
0.498 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in (x y) around 0
0.498 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in y
0.498 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.498 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.498 * [taylor]: Taking taylor expansion of x in y
0.498 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.498 * [taylor]: Taking taylor expansion of y in y
0.498 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.498 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.498 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.498 * [taylor]: Taking taylor expansion of x in x
0.499 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.499 * [taylor]: Taking taylor expansion of y in x
0.499 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.499 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.499 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.499 * [taylor]: Taking taylor expansion of x in x
0.499 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.499 * [taylor]: Taking taylor expansion of y in x
0.500 * [taylor]: Taking taylor expansion of 1 in y
0.501 * [taylor]: Taking taylor expansion of 0 in y
0.502 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.502 * [taylor]: Taking taylor expansion of y in y
0.504 * [taylor]: Taking taylor expansion of 0 in y
0.506 * [taylor]: Taking taylor expansion of 0 in y
0.506 * * * * [progress]: [ 3 / 4 ] generating series at (2 2 1 1)
0.506 * [approximate]: Taking taylor expansion of (- (pow x 2) y) in (x y) around 0
0.506 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in y
0.506 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.506 * [taylor]: Taking taylor expansion of x in y
0.506 * [taylor]: Taking taylor expansion of y in y
0.506 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in x
0.506 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.506 * [taylor]: Taking taylor expansion of x in x
0.506 * [taylor]: Taking taylor expansion of y in x
0.506 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in x
0.506 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.506 * [taylor]: Taking taylor expansion of x in x
0.506 * [taylor]: Taking taylor expansion of y in x
0.506 * [taylor]: Taking taylor expansion of (- y) in y
0.506 * [taylor]: Taking taylor expansion of y in y
0.507 * [taylor]: Taking taylor expansion of 0 in y
0.508 * [taylor]: Taking taylor expansion of 1 in y
0.509 * [taylor]: Taking taylor expansion of 0 in y
0.510 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in (x y) around 0
0.510 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in y
0.510 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.510 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.510 * [taylor]: Taking taylor expansion of x in y
0.510 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.510 * [taylor]: Taking taylor expansion of y in y
0.510 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.510 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.510 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.510 * [taylor]: Taking taylor expansion of x in x
0.511 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.511 * [taylor]: Taking taylor expansion of y in x
0.511 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.511 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.511 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.511 * [taylor]: Taking taylor expansion of x in x
0.511 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.511 * [taylor]: Taking taylor expansion of y in x
0.512 * [taylor]: Taking taylor expansion of 1 in y
0.513 * [taylor]: Taking taylor expansion of 0 in y
0.514 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in y
0.514 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.514 * [taylor]: Taking taylor expansion of y in y
0.516 * [taylor]: Taking taylor expansion of 0 in y
0.518 * [taylor]: Taking taylor expansion of 0 in y
0.518 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in (x y) around 0
0.518 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in y
0.518 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.519 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.519 * [taylor]: Taking taylor expansion of x in y
0.519 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.519 * [taylor]: Taking taylor expansion of y in y
0.519 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.519 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.519 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.519 * [taylor]: Taking taylor expansion of x in x
0.519 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.519 * [taylor]: Taking taylor expansion of y in x
0.520 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.520 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.520 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.520 * [taylor]: Taking taylor expansion of x in x
0.520 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.520 * [taylor]: Taking taylor expansion of y in x
0.520 * [taylor]: Taking taylor expansion of 1 in y
0.521 * [taylor]: Taking taylor expansion of 0 in y
0.523 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.523 * [taylor]: Taking taylor expansion of y in y
0.524 * [taylor]: Taking taylor expansion of 0 in y
0.526 * [taylor]: Taking taylor expansion of 0 in y
0.527 * * * * [progress]: [ 4 / 4 ] generating series at (2 2 2)
0.527 * [approximate]: Taking taylor expansion of (sqrt (- (pow x 2) y)) in (x y) around 0
0.527 * [taylor]: Taking taylor expansion of (sqrt (- (pow x 2) y)) in y
0.527 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in y
0.527 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.527 * [taylor]: Taking taylor expansion of x in y
0.527 * [taylor]: Taking taylor expansion of y in y
0.528 * [taylor]: Taking taylor expansion of (sqrt (- (pow x 2) y)) in x
0.528 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in x
0.528 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.528 * [taylor]: Taking taylor expansion of x in x
0.528 * [taylor]: Taking taylor expansion of y in x
0.529 * [taylor]: Taking taylor expansion of (sqrt (- (pow x 2) y)) in x
0.529 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in x
0.529 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.529 * [taylor]: Taking taylor expansion of x in x
0.529 * [taylor]: Taking taylor expansion of y in x
0.529 * [taylor]: Taking taylor expansion of (sqrt (- y)) in y
0.529 * [taylor]: Taking taylor expansion of (- y) in y
0.529 * [taylor]: Taking taylor expansion of y in y
0.531 * [taylor]: Taking taylor expansion of 0 in y
0.533 * [taylor]: Taking taylor expansion of (/ 1/2 (sqrt (- y))) in y
0.533 * [taylor]: Taking taylor expansion of 1/2 in y
0.533 * [taylor]: Taking taylor expansion of (sqrt (- y)) in y
0.533 * [taylor]: Taking taylor expansion of (- y) in y
0.533 * [taylor]: Taking taylor expansion of y in y
0.542 * [approximate]: Taking taylor expansion of (sqrt (- (/ 1 (pow x 2)) (/ 1 y))) in (x y) around 0
0.542 * [taylor]: Taking taylor expansion of (sqrt (- (/ 1 (pow x 2)) (/ 1 y))) in y
0.542 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in y
0.542 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.542 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.542 * [taylor]: Taking taylor expansion of x in y
0.542 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.542 * [taylor]: Taking taylor expansion of y in y
0.544 * [taylor]: Taking taylor expansion of (sqrt (- (/ 1 (pow x 2)) (/ 1 y))) in x
0.544 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.544 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.544 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.544 * [taylor]: Taking taylor expansion of x in x
0.544 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.544 * [taylor]: Taking taylor expansion of y in x
0.546 * [taylor]: Taking taylor expansion of (sqrt (- (/ 1 (pow x 2)) (/ 1 y))) in x
0.546 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.546 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.546 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.546 * [taylor]: Taking taylor expansion of x in x
0.547 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.547 * [taylor]: Taking taylor expansion of y in x
0.549 * [taylor]: Taking taylor expansion of 1 in y
0.549 * [taylor]: Taking taylor expansion of 0 in y
0.551 * [taylor]: Taking taylor expansion of (/ -1/2 y) in y
0.551 * [taylor]: Taking taylor expansion of -1/2 in y
0.551 * [taylor]: Taking taylor expansion of y in y
0.553 * [taylor]: Taking taylor expansion of 0 in y
0.556 * [taylor]: Taking taylor expansion of (/ -1/8 (pow y 2)) in y
0.556 * [taylor]: Taking taylor expansion of -1/8 in y
0.556 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.556 * [taylor]: Taking taylor expansion of y in y
0.558 * [approximate]: Taking taylor expansion of (sqrt (+ (/ 1 (pow x 2)) (/ 1 y))) in (x y) around 0
0.558 * [taylor]: Taking taylor expansion of (sqrt (+ (/ 1 (pow x 2)) (/ 1 y))) in y
0.558 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in y
0.558 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.558 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.558 * [taylor]: Taking taylor expansion of x in y
0.558 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.558 * [taylor]: Taking taylor expansion of y in y
0.560 * [taylor]: Taking taylor expansion of (sqrt (+ (/ 1 (pow x 2)) (/ 1 y))) in x
0.560 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.560 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.560 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.560 * [taylor]: Taking taylor expansion of x in x
0.560 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.560 * [taylor]: Taking taylor expansion of y in x
0.562 * [taylor]: Taking taylor expansion of (sqrt (+ (/ 1 (pow x 2)) (/ 1 y))) in x
0.562 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.562 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.562 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.562 * [taylor]: Taking taylor expansion of x in x
0.563 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.563 * [taylor]: Taking taylor expansion of y in x
0.565 * [taylor]: Taking taylor expansion of 1 in y
0.565 * [taylor]: Taking taylor expansion of 0 in y
0.566 * [taylor]: Taking taylor expansion of (/ 1/2 y) in y
0.566 * [taylor]: Taking taylor expansion of 1/2 in y
0.566 * [taylor]: Taking taylor expansion of y in y
0.568 * [taylor]: Taking taylor expansion of 0 in y
0.571 * [taylor]: Taking taylor expansion of (/ -1/8 (pow y 2)) in y
0.571 * [taylor]: Taking taylor expansion of -1/8 in y
0.572 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.572 * [taylor]: Taking taylor expansion of y in y
0.573 * * * [progress]: simplifying candidates
0.574 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ 1/2 1/2)
  (+ 1/2 (/ 1 2))
  (+ 1 1)
  (+ (/ 1 2) 1/2)
  (+ (/ 1 2) (/ 1 2))
  (* (- (* x x) y) (- (* x x) y))
  (* (sqrt (- (* x x) y)) (sqrt (- (* x x) y)))
  (* (- (* x x) y) (- (* x x) y))
  (+ 1 1)
  (+ (log (sqrt (- (* x x) y))) (log (sqrt (- (* x x) y))))
  (log (* (sqrt (- (* x x) y)) (sqrt (- (* x x) y))))
  (exp (* (sqrt (- (* x x) y)) (sqrt (- (* x x) y))))
  (* (* (* (sqrt (- (* x x) y)) (sqrt (- (* x x) y))) (sqrt (- (* x x) y))) (* (* (sqrt (- (* x x) y)) (sqrt (- (* x x) y))) (sqrt (- (* x x) y))))
  (* (cbrt (* (sqrt (- (* x x) y)) (sqrt (- (* x x) y)))) (cbrt (* (sqrt (- (* x x) y)) (sqrt (- (* x x) y)))))
  (cbrt (* (sqrt (- (* x x) y)) (sqrt (- (* x x) y))))
  (* (* (* (sqrt (- (* x x) y)) (sqrt (- (* x x) y))) (* (sqrt (- (* x x) y)) (sqrt (- (* x x) y)))) (* (sqrt (- (* x x) y)) (sqrt (- (* x x) y))))
  (* (- (* x x) y) (- (* x x) y))
  (sqrt (* (sqrt (- (* x x) y)) (sqrt (- (* x x) y))))
  (sqrt (* (sqrt (- (* x x) y)) (sqrt (- (* x x) y))))
  (* (sqrt (- (pow (* x x) 3) (pow y 3))) (sqrt (- (pow (* x x) 3) (pow y 3))))
  (* (sqrt (+ (* (* x x) (* x x)) (+ (* y y) (* (* x x) y)))) (sqrt (+ (* (* x x) (* x x)) (+ (* y y) (* (* x x) y)))))
  (* (sqrt (- (pow (* x x) 3) (pow y 3))) (sqrt (- (* (* x x) (* x x)) (* y y))))
  (* (sqrt (+ (* (* x x) (* x x)) (+ (* y y) (* (* x x) y)))) (sqrt (+ (* x x) y)))
  (* (sqrt (- (* (* x x) (* x x)) (* y y))) (sqrt (- (pow (* x x) 3) (pow y 3))))
  (* (sqrt (+ (* x x) y)) (sqrt (+ (* (* x x) (* x x)) (+ (* y y) (* (* x x) y)))))
  (* (sqrt (- (* (* x x) (* x x)) (* y y))) (sqrt (- (* (* x x) (* x x)) (* y y))))
  (* (sqrt (+ (* x x) y)) (sqrt (+ (* x x) y)))
  (* (* (cbrt (sqrt (- (* x x) y))) (cbrt (sqrt (- (* x x) y)))) (* (cbrt (sqrt (- (* x x) y))) (cbrt (sqrt (- (* x x) y)))))
  (* (cbrt (sqrt (- (* x x) y))) (cbrt (sqrt (- (* x x) y))))
  (* (sqrt (* (cbrt (- (* x x) y)) (cbrt (- (* x x) y)))) (sqrt (* (cbrt (- (* x x) y)) (cbrt (- (* x x) y)))))
  (* (sqrt (cbrt (- (* x x) y))) (sqrt (cbrt (- (* x x) y))))
  (* (sqrt (sqrt (- (* x x) y))) (sqrt (sqrt (- (* x x) y))))
  (* (sqrt (sqrt (- (* x x) y))) (sqrt (sqrt (- (* x x) y))))
  (* (sqrt (sqrt (- (* x x) y))) (sqrt (sqrt (- (* x x) y))))
  (* (sqrt (sqrt (- (* x x) y))) (sqrt (sqrt (- (* x x) y))))
  (* (sqrt 1) (sqrt 1))
  (* (sqrt (- (* x x) y)) (sqrt (- (* x x) y)))
  (* (sqrt (+ x (sqrt y))) (sqrt (+ x (sqrt y))))
  (* (sqrt (- x (sqrt y))) (sqrt (- x (sqrt y))))
  (* (sqrt (sqrt (- (* x x) y))) (sqrt (sqrt (- (* x x) y))))
  (* (sqrt (sqrt (- (* x x) y))) (sqrt (sqrt (- (* x x) y))))
  (* (sqrt (sqrt (- (* x x) y))) (sqrt (sqrt (- (* x x) y))))
  (* (sqrt (sqrt (- (* x x) y))) (sqrt (sqrt (- (* x x) y))))
  (* 1 1)
  (* (sqrt (- (* x x) y)) (sqrt (- (* x x) y)))
  (* (sqrt (sqrt (- (* x x) y))) (sqrt (sqrt (- (* x x) y))))
  (* (sqrt (sqrt (- (* x x) y))) (sqrt (sqrt (- (* x x) y))))
  (* (sqrt (sqrt (- (* x x) y))) (sqrt (sqrt (- (* x x) y))))
  (* (sqrt (sqrt (- (* x x) y))) (sqrt (sqrt (- (* x x) y))))
  (* (sqrt (sqrt (- (* x x) y))) (sqrt (sqrt (- (* x x) y))))
  (* (sqrt (sqrt (- (* x x) y))) (sqrt (sqrt (- (* x x) y))))
  (* (sqrt (sqrt (- (* x x) y))) (sqrt (sqrt (- (* x x) y))))
  (* (sqrt (sqrt (- (* x x) y))) (sqrt (sqrt (- (* x x) y))))
  (* 2 1/2)
  (* 2 1)
  (* 2 (/ 1 2))
  (* (sqrt (- (* x x) y)) (* (cbrt (sqrt (- (* x x) y))) (cbrt (sqrt (- (* x x) y)))))
  (* (sqrt (- (* x x) y)) (sqrt (* (cbrt (- (* x x) y)) (cbrt (- (* x x) y)))))
  (* (sqrt (- (* x x) y)) (sqrt (sqrt (- (* x x) y))))
  (* (sqrt (- (* x x) y)) (sqrt 1))
  (* (sqrt (- (* x x) y)) (sqrt (+ x (sqrt y))))
  (* (sqrt (- (* x x) y)) (sqrt (sqrt (- (* x x) y))))
  (* (sqrt (- (* x x) y)) 1)
  (* (cbrt (sqrt (- (* x x) y))) (sqrt (- (* x x) y)))
  (* (sqrt (cbrt (- (* x x) y))) (sqrt (- (* x x) y)))
  (* (sqrt (sqrt (- (* x x) y))) (sqrt (- (* x x) y)))
  (* (sqrt (- (* x x) y)) (sqrt (- (* x x) y)))
  (* (sqrt (- x (sqrt y))) (sqrt (- (* x x) y)))
  (* (sqrt (sqrt (- (* x x) y))) (sqrt (- (* x x) y)))
  (* (sqrt (- (* x x) y)) (sqrt (- (* x x) y)))
  (* (sqrt (- (* x x) y)) (sqrt (- (pow (* x x) 3) (pow y 3))))
  (* (sqrt (- (* x x) y)) (sqrt (- (* (* x x) (* x x)) (* y y))))
  (* (sqrt (- (pow (* x x) 3) (pow y 3))) (sqrt (- (* x x) y)))
  (* (sqrt (- (* (* x x) (* x x)) (* y y))) (sqrt (- (* x x) y)))
  (/ (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)
  (/ (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)
  (log (sqrt (- (* x x) y)))
  (exp (sqrt (- (* x x) y)))
  (* (cbrt (sqrt (- (* x x) y))) (cbrt (sqrt (- (* x x) y))))
  (cbrt (sqrt (- (* x x) y)))
  (* (* (sqrt (- (* x x) y)) (sqrt (- (* x x) y))) (sqrt (- (* x x) y)))
  (sqrt (* (cbrt (- (* x x) y)) (cbrt (- (* x x) y))))
  (sqrt (cbrt (- (* x x) y)))
  (sqrt (sqrt (- (* x x) y)))
  (sqrt (sqrt (- (* x x) y)))
  (sqrt 1)
  (sqrt (- (* x x) y))
  (sqrt (+ x (sqrt y)))
  (sqrt (- x (sqrt y)))
  (sqrt (- (pow (* x x) 3) (pow y 3)))
  (sqrt (+ (* (* x x) (* x x)) (+ (* y y) (* (* x x) y))))
  (sqrt (- (* (* x x) (* x x)) (* y y)))
  (sqrt (+ (* x x) y))
  (/ 1 2)
  (sqrt (sqrt (- (* x x) y)))
  (sqrt (sqrt (- (* x x) y)))
  (- (pow x 2) y)
  (- (pow x 2) y)
  (- (pow x 2) y)
  (- (pow x 2) y)
  (- (pow x 2) y)
  (- (pow x 2) y)
  (- (pow x 2) y)
  (- (pow x 2) y)
  (- (pow x 2) y)
  (- (+ (* +nan.0 (pow x 2)) (- (+ (* +nan.0 (pow y 2)) (- (* +nan.0 y))))))
  (- x (* 1/2 (/ y x)))
  (- (* 1/2 (/ y x)) x)
0.580 * * [simplify]: iteration  0 :  213  enodes  (cost  585 )
0.585 * * [simplify]: iteration  1 :  789  enodes  (cost  527 )
0.604 * * [simplify]: iteration  2 :  4489  enodes  (cost  512 )
0.755 * * [simplify]: iteration  3 :  5001  enodes  (cost  499 )
0.762 * [simplify]: Simplified to:
   1
  1
  2
  1
  1
  (pow (sqrt (- (* x x) y)) 4)
  (- (* x x) y)
  (pow (sqrt (- (* x x) y)) 4)
  2
  (log (- (* x x) y))
  (log (- (* x x) y))
  (exp (- (* x x) y))
  (pow (- (* x x) y) 3)
  (pow (sqrt (cbrt (- (* x x) y))) 4)
  (cbrt (- (* x x) y))
  (pow (- (* x x) y) 3)
  (pow (sqrt (- (* x x) y)) 4)
  (sqrt (- (* x x) y))
  (sqrt (- (* x x) y))
  (- (pow (* x x) 3) (pow y 3))
  (+ (+ (pow x 4) (pow y 2)) (* (* x x) y))
  (* (sqrt (- (pow (* x x) 3) (pow y 3))) (sqrt (- (* (* x x) (* x x)) (* y y))))
  (* (sqrt (+ (* (* x x) (* x x)) (+ (* y y) (* (* x x) y)))) (sqrt (+ (* x x) y)))
  (* (sqrt (- (pow (* x x) 3) (pow y 3))) (sqrt (- (* (* x x) (* x x)) (* y y))))
  (* (sqrt (+ (* (* x x) (* x x)) (+ (* y y) (* (* x x) y)))) (sqrt (+ (* x x) y)))
  (- (pow x 4) (pow y 2))
  (+ (* x x) y)
  (pow (cbrt (sqrt (- (* x x) y))) 4)
  (* (cbrt (sqrt (- (* x x) y))) (cbrt (sqrt (- (* x x) y))))
  (pow (sqrt (cbrt (- (* x x) y))) 4)
  (cbrt (- (* x x) y))
  (sqrt (- (* x x) y))
  (sqrt (- (* x x) y))
  (sqrt (- (* x x) y))
  (sqrt (- (* x x) y))
  1
  (- (* x x) y)
  (+ x (sqrt y))
  (- x (sqrt y))
  (sqrt (- (* x x) y))
  (sqrt (- (* x x) y))
  (sqrt (- (* x x) y))
  (sqrt (- (* x x) y))
  1
  (- (* x x) y)
  (sqrt (- (* x x) y))
  (sqrt (- (* x x) y))
  (sqrt (- (* x x) y))
  (sqrt (- (* x x) y))
  (sqrt (- (* x x) y))
  (sqrt (- (* x x) y))
  (sqrt (- (* x x) y))
  (sqrt (- (* x x) y))
  1
  2
  1
  (pow (cbrt (sqrt (- (* x x) y))) 5)
  (* (fabs (cbrt (- (* x x) y))) (sqrt (- (* x x) y)))
  (pow (sqrt (sqrt (- (* x x) y))) 3)
  (sqrt (- (* x x) y))
  (* (sqrt (- (* x x) y)) (sqrt (+ x (sqrt y))))
  (pow (sqrt (sqrt (- (* x x) y))) 3)
  (sqrt (- (* x x) y))
  (pow (cbrt (sqrt (- (* x x) y))) 4)
  (* (sqrt (cbrt (- (* x x) y))) (sqrt (- (* x x) y)))
  (pow (sqrt (sqrt (- (* x x) y))) 3)
  (- (* x x) y)
  (* (sqrt (- x (sqrt y))) (sqrt (- (* x x) y)))
  (pow (sqrt (sqrt (- (* x x) y))) 3)
  (- (* x x) y)
  (* (sqrt (- (* x x) y)) (sqrt (- (pow (* x x) 3) (pow y 3))))
  (* (sqrt (- (* x x) y)) (sqrt (- (* (* x x) (* x x)) (* y y))))
  (* (sqrt (- (* x x) y)) (sqrt (- (pow (* x x) 3) (pow y 3))))
  (* (sqrt (- (* x x) y)) (sqrt (- (* (* x x) (* x x)) (* y y))))
  (exp (- (* x x) y))
  (log (- (* x x) y))
  (exp (- (* x x) y))
  (pow (sqrt (cbrt (- (* x x) y))) 4)
  (cbrt (- (* x x) y))
  (pow (- (* x x) y) 3)
  (sqrt (- (* x x) y))
  (sqrt (- (* x x) y))
  (- (pow (* x x) 3) (pow y 3))
  (+ (+ (pow x 4) (pow y 2)) (* (* x x) y))
  (- y)
  (- (pow x 4) (pow y 2))
  (+ (* x x) y)
  (+ x (sqrt y))
  (- x (sqrt y))
  (- y)
  (exp (- (* x x) y))
  (log (- (* x x) y))
  (exp (- (* x x) y))
  (pow (sqrt (cbrt (- (* x x) y))) 4)
  (cbrt (- (* x x) y))
  (pow (- (* x x) y) 3)
  (sqrt (- (* x x) y))
  (sqrt (- (* x x) y))
  (- (pow (* x x) 3) (pow y 3))
  (+ (+ (pow x 4) (pow y 2)) (* (* x x) y))
  (- y)
  (- (pow x 4) (pow y 2))
  (+ (* x x) y)
  (+ x (sqrt y))
  (- x (sqrt y))
  (- y)
  (log (sqrt (- (* x x) y)))
  (exp (sqrt (- (* x x) y)))
  (* (cbrt (sqrt (- (* x x) y))) (cbrt (sqrt (- (* x x) y))))
  (cbrt (sqrt (- (* x x) y)))
  (pow (sqrt (- (* x x) y)) 3)
  (fabs (cbrt (- (* x x) y)))
  (sqrt (cbrt (- (* x x) y)))
  (sqrt (sqrt (- (* x x) y)))
  (sqrt (sqrt (- (* x x) y)))
  1
  (sqrt (- (* x x) y))
  (sqrt (+ x (sqrt y)))
  (sqrt (- x (sqrt y)))
  (sqrt (- (pow (* x x) 3) (pow y 3)))
  (sqrt (+ (* (* x x) (* x x)) (+ (* y y) (* (* x x) y))))
  (sqrt (- (* (* x x) (* x x)) (* y y)))
  (sqrt (+ (* x x) y))
  1/2
  (sqrt (sqrt (- (* x x) y)))
  (sqrt (sqrt (- (* x x) y)))
  (- (* x x) y)
  (- (* x x) y)
  (- (* x x) y)
  (- (* x x) y)
  (- (* x x) y)
  (- (* x x) y)
  (- (* x x) y)
  (- (* x x) y)
  (- (* x x) y)
  (* +nan.0 (+ (- (pow x 2)) (- (pow y 2) y)))
  (- x (* 1/2 (/ y x)))
  (- (* 1/2 (/ y x)) x)
0.763 * * * [progress]: adding candidates to table
0.933 * [progress]: [Phase 3 of 3] Extracting.
0.934 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (* 0.5 (* (sqrt (- (* x x) y)) (sqrt (- (* x x) y)))))> #<alt (λ (x y) (* 0.5 (- (* x x) y)))>)
0.934 * * * [regime-changes]: Trying 5 branch expressions: ((* x x) (- (* x x) y) (* 0.5 (- (* x x) y)) y x)
0.935 * * * * [regimes]: Trying to branch on (* x x) from (#<alt (λ (x y) (* 0.5 (* (sqrt (- (* x x) y)) (sqrt (- (* x x) y)))))> #<alt (λ (x y) (* 0.5 (- (* x x) y)))>)
0.946 * * * * [regimes]: Trying to branch on (- (* x x) y) from (#<alt (λ (x y) (* 0.5 (* (sqrt (- (* x x) y)) (sqrt (- (* x x) y)))))> #<alt (λ (x y) (* 0.5 (- (* x x) y)))>)
0.960 * * * * [regimes]: Trying to branch on (* 0.5 (- (* x x) y)) from (#<alt (λ (x y) (* 0.5 (* (sqrt (- (* x x) y)) (sqrt (- (* x x) y)))))> #<alt (λ (x y) (* 0.5 (- (* x x) y)))>)
0.971 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) (* 0.5 (* (sqrt (- (* x x) y)) (sqrt (- (* x x) y)))))> #<alt (λ (x y) (* 0.5 (- (* x x) y)))>)
0.982 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) (* 0.5 (* (sqrt (- (* x x) y)) (sqrt (- (* x x) y)))))> #<alt (λ (x y) (* 0.5 (- (* x x) y)))>)
0.995 * * * [regime]: Found split indices: #<option (#s(si 1 255))>
0.995 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* 0.5 (- (* x x) y))
0.996 * * [simplify]: iteration  0 :  7  enodes  (cost  3 )
0.996 * * [simplify]: iteration  1 :  7  enodes  (cost  3 )
0.996 * [simplify]: Simplified to:
   (* 0.5 (- (* x x) y))
1.461 * [regime-testing]: Baseline error score: 0.021667949505549115
1.461 * [regime-testing]: Oracle error score: 0.019917730728201945
1.463 * [regime-testing]: End program error score: 0.021667949505549115