0.840 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.263 * * * [progress]: [2/2] Setting up program.
0.266 * [progress]: [Phase 2 of 3] Improving.
0.268 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* 0.5 (- (* x x) y))
0.274 * * [simplify]: iteration  0 :  9  enodes  (cost  3 )
0.275 * * [simplify]: iteration  1 :  16  enodes  (cost  3 )
0.277 * * [simplify]: iteration  2 :  26  enodes  (cost  3 )
0.278 * * [simplify]: iteration  3 :  33  enodes  (cost  3 )
0.280 * * [simplify]: iteration  4 :  33  enodes  (cost  3 )
0.280 * [simplify]: Simplified to:
   (* 0.5 (- (* x x) y))
0.282 * * [progress]: iteration 1 / 4
0.282 * * * [progress]: picking best candidate
0.283 * * * * [pick]: Picked  #<alt (λ (x y) (* 0.5 (- (* x x) y)))>
0.283 * * * [progress]: localizing error
0.290 * * * [progress]: generating rewritten candidates
0.290 * * * * [progress]: [ 1 / 1 ] rewriting at (2 2)
0.298 * * * [progress]: generating series expansions
0.299 * * * * [progress]: [ 1 / 1 ] generating series at (2 2)
0.303 * [approximate]: Taking taylor expansion of (- (pow x 2) y) in (x y) around 0
0.304 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in y
0.304 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.304 * [taylor]: Taking taylor expansion of x in y
0.304 * [taylor]: Taking taylor expansion of y in y
0.305 * [taylor]: Taking taylor expansion of (- (pow x 2) y) 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 y in x
0.305 * [taylor]: Taking taylor expansion of (- (pow x 2) y) 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 y in x
0.305 * [taylor]: Taking taylor expansion of (- y) in y
0.305 * [taylor]: Taking taylor expansion of y in y
0.307 * [taylor]: Taking taylor expansion of 0 in y
0.308 * [taylor]: Taking taylor expansion of 1 in y
0.309 * [taylor]: Taking taylor expansion of 0 in y
0.310 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in (x y) around 0
0.310 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in y
0.310 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.310 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.310 * [taylor]: Taking taylor expansion of x in y
0.310 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.310 * [taylor]: Taking taylor expansion of y in y
0.311 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.311 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.311 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.311 * [taylor]: Taking taylor expansion of x in x
0.311 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.311 * [taylor]: Taking taylor expansion of y in x
0.311 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.311 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.311 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.311 * [taylor]: Taking taylor expansion of x in x
0.312 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.312 * [taylor]: Taking taylor expansion of y in x
0.312 * [taylor]: Taking taylor expansion of 1 in y
0.314 * [taylor]: Taking taylor expansion of 0 in y
0.315 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in y
0.315 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.315 * [taylor]: Taking taylor expansion of y in y
0.317 * [taylor]: Taking taylor expansion of 0 in y
0.319 * [taylor]: Taking taylor expansion of 0 in y
0.320 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in (x y) around 0
0.320 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in y
0.320 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.320 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.320 * [taylor]: Taking taylor expansion of x in y
0.320 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.320 * [taylor]: Taking taylor expansion of y in y
0.321 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.321 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.321 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.321 * [taylor]: Taking taylor expansion of x in x
0.321 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.321 * [taylor]: Taking taylor expansion of y in x
0.321 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.321 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.321 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.321 * [taylor]: Taking taylor expansion of x in x
0.322 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.322 * [taylor]: Taking taylor expansion of y in x
0.322 * [taylor]: Taking taylor expansion of 1 in y
0.324 * [taylor]: Taking taylor expansion of 0 in y
0.325 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.325 * [taylor]: Taking taylor expansion of y in y
0.326 * [taylor]: Taking taylor expansion of 0 in y
0.328 * [taylor]: Taking taylor expansion of 0 in y
0.329 * * * [progress]: simplifying candidates
0.329 * [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)
0.332 * * [simplify]: iteration  0 :  73  enodes  (cost  63 )
0.334 * * [simplify]: iteration  1 :  216  enodes  (cost  56 )
0.338 * * [simplify]: iteration  2 :  535  enodes  (cost  56 )
0.349 * * [simplify]: iteration  3 :  1794  enodes  (cost  56 )
0.391 * * [simplify]: iteration  4 :  5001  enodes  (cost  56 )
0.392 * [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)
0.392 * * * [progress]: adding candidates to table
0.435 * * [progress]: iteration 2 / 4
0.435 * * * [progress]: picking best candidate
0.437 * * * * [pick]: Picked  #<alt (λ (x y) (* 0.5 (/ (+ (- (* y y)) (pow x 4)) (+ (* x x) y))))>
0.437 * * * [progress]: localizing error
0.449 * * * [progress]: generating rewritten candidates
0.449 * * * * [progress]: [ 1 / 3 ] rewriting at (2 2)
0.460 * * * * [progress]: [ 2 / 3 ] rewriting at (2 2 1)
0.466 * * * * [progress]: [ 3 / 3 ] rewriting at (2 2 2)
0.471 * * * [progress]: generating series expansions
0.471 * * * * [progress]: [ 1 / 3 ] generating series at (2 2)
0.472 * [approximate]: Taking taylor expansion of (/ (- (pow x 4) (pow y 2)) (+ (pow x 2) y)) in (y x) around 0
0.472 * [taylor]: Taking taylor expansion of (/ (- (pow x 4) (pow y 2)) (+ (pow x 2) y)) in x
0.472 * [taylor]: Taking taylor expansion of (- (pow x 4) (pow y 2)) in x
0.472 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.472 * [taylor]: Taking taylor expansion of x in x
0.472 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.472 * [taylor]: Taking taylor expansion of y in x
0.472 * [taylor]: Taking taylor expansion of (+ (pow x 2) y) in x
0.472 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.472 * [taylor]: Taking taylor expansion of x in x
0.472 * [taylor]: Taking taylor expansion of y in x
0.472 * [taylor]: Taking taylor expansion of (/ (- (pow x 4) (pow y 2)) (+ (pow x 2) y)) in y
0.472 * [taylor]: Taking taylor expansion of (- (pow x 4) (pow y 2)) in y
0.472 * [taylor]: Taking taylor expansion of (pow x 4) in y
0.472 * [taylor]: Taking taylor expansion of x in y
0.472 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.472 * [taylor]: Taking taylor expansion of y in y
0.472 * [taylor]: Taking taylor expansion of (+ (pow x 2) y) 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 y in y
0.473 * [taylor]: Taking taylor expansion of (/ (- (pow x 4) (pow y 2)) (+ (pow x 2) y)) in y
0.473 * [taylor]: Taking taylor expansion of (- (pow x 4) (pow y 2)) in y
0.473 * [taylor]: Taking taylor expansion of (pow x 4) in y
0.473 * [taylor]: Taking taylor expansion of x in y
0.473 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.473 * [taylor]: Taking taylor expansion of y in y
0.473 * [taylor]: Taking taylor expansion of (+ (pow x 2) y) 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 y in y
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) in x
0.475 * [taylor]: Taking taylor expansion of 1 in x
0.477 * [taylor]: Taking taylor expansion of 0 in x
0.481 * [taylor]: Taking taylor expansion of 0 in x
0.486 * [taylor]: Taking taylor expansion of 0 in x
0.486 * [approximate]: Taking taylor expansion of (/ (- (/ 1 (pow x 4)) (/ 1 (pow y 2))) (+ (/ 1 (pow x 2)) (/ 1 y))) in (y x) around 0
0.486 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow x 4)) (/ 1 (pow y 2))) (+ (/ 1 (pow x 2)) (/ 1 y))) in x
0.486 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 2))) in x
0.486 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.486 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.486 * [taylor]: Taking taylor expansion of x in x
0.487 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.487 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.487 * [taylor]: Taking taylor expansion of y in x
0.487 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.487 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.487 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.487 * [taylor]: Taking taylor expansion of x in x
0.488 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.488 * [taylor]: Taking taylor expansion of y in x
0.489 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow x 4)) (/ 1 (pow y 2))) (+ (/ 1 (pow x 2)) (/ 1 y))) in y
0.489 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 2))) in y
0.489 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in y
0.489 * [taylor]: Taking taylor expansion of (pow x 4) in y
0.489 * [taylor]: Taking taylor expansion of x in y
0.489 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.489 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.489 * [taylor]: Taking taylor expansion of y in y
0.489 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in y
0.489 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.489 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.489 * [taylor]: Taking taylor expansion of x in y
0.490 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.490 * [taylor]: Taking taylor expansion of y in y
0.491 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow x 4)) (/ 1 (pow y 2))) (+ (/ 1 (pow x 2)) (/ 1 y))) in y
0.491 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 2))) in y
0.491 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in y
0.491 * [taylor]: Taking taylor expansion of (pow x 4) in y
0.491 * [taylor]: Taking taylor expansion of x in y
0.491 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.491 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.491 * [taylor]: Taking taylor expansion of y in y
0.492 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in y
0.492 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.492 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.492 * [taylor]: Taking taylor expansion of x in y
0.492 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.492 * [taylor]: Taking taylor expansion of y in y
0.497 * [taylor]: Taking taylor expansion of -1 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
0.502 * [taylor]: Taking taylor expansion of 0 in x
0.507 * [taylor]: Taking taylor expansion of 0 in x
0.513 * [taylor]: Taking taylor expansion of 0 in x
0.521 * [taylor]: Taking taylor expansion of 0 in x
0.521 * [approximate]: Taking taylor expansion of (/ (- (/ 1 (pow x 4)) (/ 1 (pow y 2))) (- (/ 1 (pow x 2)) (/ 1 y))) in (y x) around 0
0.521 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow x 4)) (/ 1 (pow y 2))) (- (/ 1 (pow x 2)) (/ 1 y))) in x
0.521 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 2))) in x
0.521 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.521 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.521 * [taylor]: Taking taylor expansion of x in x
0.522 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.522 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.522 * [taylor]: Taking taylor expansion of y in x
0.522 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.522 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.522 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.522 * [taylor]: Taking taylor expansion of x in x
0.523 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.523 * [taylor]: Taking taylor expansion of y in x
0.524 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow x 4)) (/ 1 (pow y 2))) (- (/ 1 (pow x 2)) (/ 1 y))) in y
0.524 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 2))) in y
0.524 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in y
0.524 * [taylor]: Taking taylor expansion of (pow x 4) in y
0.524 * [taylor]: Taking taylor expansion of x in y
0.524 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.524 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.524 * [taylor]: Taking taylor expansion of y in y
0.524 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in y
0.524 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.524 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.524 * [taylor]: Taking taylor expansion of x in y
0.525 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.525 * [taylor]: Taking taylor expansion of y in y
0.526 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow x 4)) (/ 1 (pow y 2))) (- (/ 1 (pow x 2)) (/ 1 y))) in y
0.526 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 2))) in y
0.526 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in y
0.526 * [taylor]: Taking taylor expansion of (pow x 4) in y
0.526 * [taylor]: Taking taylor expansion of x in y
0.526 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.526 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.526 * [taylor]: Taking taylor expansion of y in y
0.527 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in y
0.527 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) 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 (/ 1 y) in y
0.527 * [taylor]: Taking taylor expansion of y in y
0.528 * [taylor]: Taking taylor expansion of 1 in x
0.531 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.531 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.531 * [taylor]: Taking taylor expansion of x in x
0.534 * [taylor]: Taking taylor expansion of 0 in x
0.539 * [taylor]: Taking taylor expansion of 0 in x
0.546 * [taylor]: Taking taylor expansion of 0 in x
0.554 * [taylor]: Taking taylor expansion of 0 in x
0.554 * * * * [progress]: [ 2 / 3 ] generating series at (2 2 1)
0.554 * [approximate]: Taking taylor expansion of (- (pow x 4) (pow y 2)) in (y x) around 0
0.554 * [taylor]: Taking taylor expansion of (- (pow x 4) (pow y 2)) in x
0.554 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.554 * [taylor]: Taking taylor expansion of x in x
0.554 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.554 * [taylor]: Taking taylor expansion of y in x
0.554 * [taylor]: Taking taylor expansion of (- (pow x 4) (pow y 2)) in y
0.554 * [taylor]: Taking taylor expansion of (pow x 4) in y
0.554 * [taylor]: Taking taylor expansion of x in y
0.554 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.554 * [taylor]: Taking taylor expansion of y in y
0.554 * [taylor]: Taking taylor expansion of (- (pow x 4) (pow y 2)) in y
0.554 * [taylor]: Taking taylor expansion of (pow x 4) in y
0.554 * [taylor]: Taking taylor expansion of x in y
0.554 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.554 * [taylor]: Taking taylor expansion of y in y
0.554 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.555 * [taylor]: Taking taylor expansion of x in x
0.555 * [taylor]: Taking taylor expansion of 0 in x
0.556 * [taylor]: Taking taylor expansion of -1 in x
0.558 * [taylor]: Taking taylor expansion of 0 in x
0.561 * [taylor]: Taking taylor expansion of 0 in x
0.561 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 2))) in (y x) around 0
0.561 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 2))) in x
0.561 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.561 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.561 * [taylor]: Taking taylor expansion of x in x
0.562 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.562 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.562 * [taylor]: Taking taylor expansion of y in x
0.562 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 2))) in y
0.562 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in y
0.562 * [taylor]: Taking taylor expansion of (pow x 4) in y
0.562 * [taylor]: Taking taylor expansion of x in y
0.562 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.562 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.562 * [taylor]: Taking taylor expansion of y in y
0.563 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 2))) in y
0.563 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in y
0.563 * [taylor]: Taking taylor expansion of (pow x 4) in y
0.563 * [taylor]: Taking taylor expansion of x in y
0.563 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.563 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.563 * [taylor]: Taking taylor expansion of y in y
0.564 * [taylor]: Taking taylor expansion of -1 in x
0.565 * [taylor]: Taking taylor expansion of 0 in x
0.566 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.566 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.566 * [taylor]: Taking taylor expansion of x in x
0.569 * [taylor]: Taking taylor expansion of 0 in x
0.572 * [taylor]: Taking taylor expansion of 0 in x
0.577 * [taylor]: Taking taylor expansion of 0 in x
0.584 * [taylor]: Taking taylor expansion of 0 in x
0.587 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 2))) in (y x) around 0
0.587 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 2))) in x
0.587 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.587 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.587 * [taylor]: Taking taylor expansion of x in x
0.588 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.588 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.588 * [taylor]: Taking taylor expansion of y in x
0.588 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 2))) in y
0.588 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in y
0.588 * [taylor]: Taking taylor expansion of (pow x 4) in y
0.588 * [taylor]: Taking taylor expansion of x in y
0.588 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.588 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.588 * [taylor]: Taking taylor expansion of y in y
0.589 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 2))) in y
0.589 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in y
0.589 * [taylor]: Taking taylor expansion of (pow x 4) in y
0.589 * [taylor]: Taking taylor expansion of x in y
0.589 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.589 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.589 * [taylor]: Taking taylor expansion of y in y
0.590 * [taylor]: Taking taylor expansion of -1 in x
0.591 * [taylor]: Taking taylor expansion of 0 in x
0.593 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.593 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.593 * [taylor]: Taking taylor expansion of x in x
0.595 * [taylor]: Taking taylor expansion of 0 in x
0.599 * [taylor]: Taking taylor expansion of 0 in x
0.603 * [taylor]: Taking taylor expansion of 0 in x
0.608 * [taylor]: Taking taylor expansion of 0 in x
0.611 * * * * [progress]: [ 3 / 3 ] generating series at (2 2 2)
0.611 * [approximate]: Taking taylor expansion of (+ (pow x 2) y) in (x y) around 0
0.611 * [taylor]: Taking taylor expansion of (+ (pow x 2) y) in y
0.611 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.611 * [taylor]: Taking taylor expansion of x in y
0.611 * [taylor]: Taking taylor expansion of y in y
0.611 * [taylor]: Taking taylor expansion of (+ (pow x 2) y) in x
0.611 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.611 * [taylor]: Taking taylor expansion of x in x
0.611 * [taylor]: Taking taylor expansion of y in x
0.611 * [taylor]: Taking taylor expansion of (+ (pow x 2) y) in x
0.611 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.611 * [taylor]: Taking taylor expansion of x in x
0.611 * [taylor]: Taking taylor expansion of y in x
0.611 * [taylor]: Taking taylor expansion of y in y
0.611 * [taylor]: Taking taylor expansion of 0 in y
0.612 * [taylor]: Taking taylor expansion of 1 in y
0.613 * [taylor]: Taking taylor expansion of 0 in y
0.613 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in (x y) around 0
0.613 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in y
0.613 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.613 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.613 * [taylor]: Taking taylor expansion of x in y
0.613 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.613 * [taylor]: Taking taylor expansion of y in y
0.613 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.613 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.613 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.613 * [taylor]: Taking taylor expansion of x in x
0.614 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.614 * [taylor]: Taking taylor expansion of y in x
0.614 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.614 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.614 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.614 * [taylor]: Taking taylor expansion of x in x
0.614 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.615 * [taylor]: Taking taylor expansion of y in x
0.615 * [taylor]: Taking taylor expansion of 1 in y
0.616 * [taylor]: Taking taylor expansion of 0 in y
0.617 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.617 * [taylor]: Taking taylor expansion of y in y
0.618 * [taylor]: Taking taylor expansion of 0 in y
0.620 * [taylor]: Taking taylor expansion of 0 in y
0.621 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in (x y) around 0
0.621 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in y
0.621 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.621 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.621 * [taylor]: Taking taylor expansion of x in y
0.621 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.621 * [taylor]: Taking taylor expansion of y in y
0.621 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.621 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.621 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.621 * [taylor]: Taking taylor expansion of x in x
0.622 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.622 * [taylor]: Taking taylor expansion of y in x
0.622 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.622 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.622 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.622 * [taylor]: Taking taylor expansion of x in x
0.622 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.622 * [taylor]: Taking taylor expansion of y in x
0.623 * [taylor]: Taking taylor expansion of 1 in y
0.624 * [taylor]: Taking taylor expansion of 0 in y
0.625 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in y
0.625 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.625 * [taylor]: Taking taylor expansion of y in y
0.627 * [taylor]: Taking taylor expansion of 0 in y
0.629 * [taylor]: Taking taylor expansion of 0 in y
0.629 * * * [progress]: simplifying candidates
0.630 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (log (+ (- (* y y)) (pow x 4))) (log (+ (* x x) y)))
  (log (/ (+ (- (* y y)) (pow x 4)) (+ (* x x) y)))
  (exp (/ (+ (- (* y y)) (pow x 4)) (+ (* x x) y)))
  (/ (* (* (+ (- (* y y)) (pow x 4)) (+ (- (* y y)) (pow x 4))) (+ (- (* y y)) (pow x 4))) (* (* (+ (* x x) y) (+ (* x x) y)) (+ (* x x) y)))
  (* (cbrt (/ (+ (- (* y y)) (pow x 4)) (+ (* x x) y))) (cbrt (/ (+ (- (* y y)) (pow x 4)) (+ (* x x) y))))
  (cbrt (/ (+ (- (* y y)) (pow x 4)) (+ (* x x) y)))
  (* (* (/ (+ (- (* y y)) (pow x 4)) (+ (* x x) y)) (/ (+ (- (* y y)) (pow x 4)) (+ (* x x) y))) (/ (+ (- (* y y)) (pow x 4)) (+ (* x x) y)))
  (sqrt (/ (+ (- (* y y)) (pow x 4)) (+ (* x x) y)))
  (sqrt (/ (+ (- (* y y)) (pow x 4)) (+ (* x x) y)))
  (- (+ (- (* y y)) (pow x 4)))
  (- (+ (* x x) y))
  (/ 0 (+ (* x x) y))
  (/ (- (* y y) (pow x 4)) (+ (* x x) y))
  (/ (* (cbrt (+ (- (* y y)) (pow x 4))) (cbrt (+ (- (* y y)) (pow x 4)))) (* (cbrt (+ (* x x) y)) (cbrt (+ (* x x) y))))
  (/ (cbrt (+ (- (* y y)) (pow x 4))) (cbrt (+ (* x x) y)))
  (/ (* (cbrt (+ (- (* y y)) (pow x 4))) (cbrt (+ (- (* y y)) (pow x 4)))) (sqrt (+ (* x x) y)))
  (/ (cbrt (+ (- (* y y)) (pow x 4))) (sqrt (+ (* x x) y)))
  (/ (* (cbrt (+ (- (* y y)) (pow x 4))) (cbrt (+ (- (* y y)) (pow x 4)))) 1)
  (/ (cbrt (+ (- (* y y)) (pow x 4))) (+ (* x x) y))
  (/ (sqrt (+ (- (* y y)) (pow x 4))) (* (cbrt (+ (* x x) y)) (cbrt (+ (* x x) y))))
  (/ (sqrt (+ (- (* y y)) (pow x 4))) (cbrt (+ (* x x) y)))
  (/ (sqrt (+ (- (* y y)) (pow x 4))) (sqrt (+ (* x x) y)))
  (/ (sqrt (+ (- (* y y)) (pow x 4))) (sqrt (+ (* x x) y)))
  (/ (sqrt (+ (- (* y y)) (pow x 4))) 1)
  (/ (sqrt (+ (- (* y y)) (pow x 4))) (+ (* x x) y))
  (/ 1 (* (cbrt (+ (* x x) y)) (cbrt (+ (* x x) y))))
  (/ (+ (- (* y y)) (pow x 4)) (cbrt (+ (* x x) y)))
  (/ 1 (sqrt (+ (* x x) y)))
  (/ (+ (- (* y y)) (pow x 4)) (sqrt (+ (* x x) y)))
  (/ 1 1)
  (/ (+ (- (* y y)) (pow x 4)) (+ (* x x) y))
  (/ 1 (* (cbrt (+ (* x x) y)) (cbrt (+ (* x x) y))))
  (/ (+ (- (* y y)) (pow x 4)) (cbrt (+ (* x x) y)))
  (/ 1 (sqrt (+ (* x x) y)))
  (/ (+ (- (* y y)) (pow x 4)) (sqrt (+ (* x x) y)))
  (/ 1 1)
  (/ (+ (- (* y y)) (pow x 4)) (+ (* x x) y))
  (/ 1 (+ (* x x) y))
  (/ (+ (* x x) y) (+ (- (* y y)) (pow x 4)))
  (/ (+ (- (* y y)) (pow x 4)) (* (cbrt (+ (* x x) y)) (cbrt (+ (* x x) y))))
  (/ (+ (- (* y y)) (pow x 4)) (sqrt (+ (* x x) y)))
  (/ (+ (- (* y y)) (pow x 4)) 1)
  (/ (+ (* x x) y) (cbrt (+ (- (* y y)) (pow x 4))))
  (/ (+ (* x x) y) (sqrt (+ (- (* y y)) (pow x 4))))
  (/ (+ (* x x) y) (+ (- (* y y)) (pow x 4)))
  (/ (+ (* x x) y) (+ (- (* y y)) (pow x 4)))
  (/ (+ (- (* y y)) (pow x 4)) (+ (pow (* x x) 3) (pow y 3)))
  (/ (+ (- (* y y)) (pow x 4)) (- (* (* x x) (* x x)) (* y y)))
  (* (+ (* x x) y) (+ (* (- (* y y)) (- (* y y))) (- (* (pow x 4) (pow x 4)) (* (- (* y y)) (pow x 4)))))
  (* (+ (* x x) y) (- (- (* y y)) (pow x 4)))
  (* (/ 1 (exp (* y y))) (exp (pow x 4)))
  (* (exp (- (* y y))) (exp (pow x 4)))
  (log (+ (- (* y y)) (pow x 4)))
  (exp (+ (- (* y y)) (pow x 4)))
  (* (cbrt (+ (- (* y y)) (pow x 4))) (cbrt (+ (- (* y y)) (pow x 4))))
  (cbrt (+ (- (* y y)) (pow x 4)))
  (* (* (+ (- (* y y)) (pow x 4)) (+ (- (* y y)) (pow x 4))) (+ (- (* y y)) (pow x 4)))
  (sqrt (+ (- (* y y)) (pow x 4)))
  (sqrt (+ (- (* y y)) (pow x 4)))
  (+ (pow (- (* y y)) 3) (pow (pow x 4) 3))
  (+ (* (- (* y y)) (- (* y y))) (- (* (pow x 4) (pow x 4)) (* (- (* y y)) (pow x 4))))
  (- (* (- (* y y)) (- (* y y))) (* (pow x 4) (pow x 4)))
  (- (- (* y y)) (pow x 4))
  (+ (- (* y y)) (pow x 4))
  (- (* y y) (pow x 4))
  (* (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)))
  (- (* (* x x) (* x x)) (* y y))
  (- (* x x) y)
  (- (pow x 2) y)
  (- (pow x 2) y)
  (- (pow x 2) y)
  (* -1 (pow y 2))
  (- (pow x 4) (pow y 2))
  (- (pow x 4) (pow y 2))
  (+ (pow x 2) y)
  (+ (pow x 2) y)
  (+ (pow x 2) y)
0.635 * * [simplify]: iteration  0 :  263  enodes  (cost  582 )
0.641 * * [simplify]: iteration  1 :  1316  enodes  (cost  506 )
0.669 * * [simplify]: iteration  2 :  5002  enodes  (cost  488 )
0.672 * [simplify]: Simplified to:
   (log (/ (+ (- (* y y)) (pow x 4)) (+ (* x x) y)))
  (log (/ (+ (- (* y y)) (pow x 4)) (+ (* x x) y)))
  (exp (/ (+ (- (* y y)) (pow x 4)) (+ (* x x) y)))
  (pow (/ (- (pow x 4) (pow y 2)) (+ (pow x 2) y)) 3)
  (* (cbrt (/ (+ (- (* y y)) (pow x 4)) (+ (* x x) y))) (cbrt (/ (+ (- (* y y)) (pow x 4)) (+ (* x x) y))))
  (cbrt (/ (+ (- (* y y)) (pow x 4)) (+ (* x x) y)))
  (pow (/ (- (pow x 4) (pow y 2)) (+ (pow x 2) y)) 3)
  (sqrt (/ (+ (- (* y y)) (pow x 4)) (+ (* x x) y)))
  (sqrt (/ (+ (- (* y y)) (pow x 4)) (+ (* x x) y)))
  (- (pow y 2) (pow x 4))
  (- (+ (* x x) y))
  0
  (/ (- (* y y) (pow x 4)) (+ (* x x) y))
  (/ (* (cbrt (+ (- (* y y)) (pow x 4))) (cbrt (+ (- (* y y)) (pow x 4)))) (* (cbrt (+ (* x x) y)) (cbrt (+ (* x x) y))))
  (/ (cbrt (+ (- (* y y)) (pow x 4))) (cbrt (+ (* x x) y)))
  (/ (* (cbrt (+ (- (* y y)) (pow x 4))) (cbrt (+ (- (* y y)) (pow x 4)))) (sqrt (+ (* x x) y)))
  (/ (cbrt (+ (- (* y y)) (pow x 4))) (sqrt (+ (* x x) y)))
  (* (cbrt (+ (- (* y y)) (pow x 4))) (cbrt (+ (- (* y y)) (pow x 4))))
  (/ (cbrt (+ (- (* y y)) (pow x 4))) (+ (* x x) y))
  (/ (sqrt (+ (- (* y y)) (pow x 4))) (* (cbrt (+ (* x x) y)) (cbrt (+ (* x x) y))))
  (/ (sqrt (+ (- (* y y)) (pow x 4))) (cbrt (+ (* x x) y)))
  (/ (sqrt (+ (- (* y y)) (pow x 4))) (sqrt (+ (* x x) y)))
  (/ (sqrt (+ (- (* y y)) (pow x 4))) (sqrt (+ (* x x) y)))
  (sqrt (+ (- (* y y)) (pow x 4)))
  (/ (sqrt (+ (- (* y y)) (pow x 4))) (+ (* x x) y))
  (/ 1 (* (cbrt (+ (* x x) y)) (cbrt (+ (* x x) y))))
  (/ (- (pow x 4) (pow y 2)) (cbrt (+ (* x x) y)))
  (/ 1 (sqrt (+ (* x x) y)))
  (/ (- (pow x 4) (pow y 2)) (sqrt (+ (* x x) y)))
  1
  (/ (- (pow x 4) (pow y 2)) (+ (pow x 2) y))
  (/ 1 (* (cbrt (+ (* x x) y)) (cbrt (+ (* x x) y))))
  (/ (- (pow x 4) (pow y 2)) (cbrt (+ (* x x) y)))
  (/ 1 (sqrt (+ (* x x) y)))
  (/ (- (pow x 4) (pow y 2)) (sqrt (+ (* x x) y)))
  1
  (/ (- (pow x 4) (pow y 2)) (+ (pow x 2) y))
  (/ 1 (+ (* x x) y))
  (/ 1 (- (pow x 2) y))
  (/ (/ (- (pow x 4) (pow y 2)) (cbrt (+ (* x x) y))) (cbrt (+ (* x x) y)))
  (/ (- (pow x 4) (pow y 2)) (sqrt (+ (* x x) y)))
  (- (pow x 4) (pow y 2))
  (/ (+ (* x x) y) (cbrt (+ (- (* y y)) (pow x 4))))
  (/ (+ (* x x) y) (sqrt (+ (- (* y y)) (pow x 4))))
  (/ 1 (- (pow x 2) y))
  (/ 1 (- (pow x 2) y))
  (/ (- (pow x 4) (pow y 2)) (+ (pow (* x x) 3) (pow y 3)))
  1
  (* (+ (pow x 8) (+ (* (pow y 2) (pow x 4)) (pow y 4))) (+ (pow x 2) y))
  (* (+ (* x x) y) (- (- (* y y)) (pow x 4)))
  (exp (- (pow x 4) (pow y 2)))
  (exp (- (pow x 4) (pow y 2)))
  (log (- (pow x 4) (pow y 2)))
  (exp (- (pow x 4) (pow y 2)))
  (* (cbrt (+ (- (* y y)) (pow x 4))) (cbrt (+ (- (* y y)) (pow x 4))))
  (cbrt (+ (- (* y y)) (pow x 4)))
  (pow (- (pow x 4) (pow y 2)) 3)
  (sqrt (+ (- (* y y)) (pow x 4)))
  (sqrt (+ (- (* y y)) (pow x 4)))
  (- (pow (pow x 4) 3) (pow (pow y 2) 3))
  (+ (pow x 8) (+ (* (pow y 2) (pow x 4)) (pow y 4)))
  (+ (- (pow x 8)) (pow y 4))
  (- (- (* y y)) (pow x 4))
  (- (pow x 4) (pow y 2))
  (- (pow y 2) (pow x 4))
  (exp (+ (* x x) y))
  (log (+ (pow x 2) 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) (pow y 2)) (* (* x x) y))
  (- (pow x 4) (pow y 2))
  (- (pow x 2) y)
  (- (pow x 2) y)
  (- (pow x 2) y)
  (- (pow x 2) y)
  (* -1 (pow y 2))
  (- (pow x 4) (pow y 2))
  (- (pow x 4) (pow y 2))
  (+ (pow x 2) y)
  (+ (pow x 2) y)
  (+ (pow x 2) y)
0.672 * * * [progress]: adding candidates to table
0.838 * [progress]: [Phase 3 of 3] Extracting.
0.839 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (* 0.5 (- (* x x) y)))> #<alt (λ (x y) (* 0.5 (/ (+ (- (* y y)) (pow x 4)) (+ (* x x) y))))>)
0.839 * * * [regime-changes]: Trying 5 branch expressions: ((* x x) (- (* x x) y) (* 0.5 (- (* x x) y)) y x)
0.840 * * * * [regimes]: Trying to branch on (* x x) from (#<alt (λ (x y) (* 0.5 (- (* x x) y)))> #<alt (λ (x y) (* 0.5 (/ (+ (- (* y y)) (pow x 4)) (+ (* x x) y))))>)
0.852 * * * * [regimes]: Trying to branch on (- (* x x) y) from (#<alt (λ (x y) (* 0.5 (- (* x x) y)))> #<alt (λ (x y) (* 0.5 (/ (+ (- (* y y)) (pow x 4)) (+ (* x x) y))))>)
0.866 * * * * [regimes]: Trying to branch on (* 0.5 (- (* x x) y)) from (#<alt (λ (x y) (* 0.5 (- (* x x) y)))> #<alt (λ (x y) (* 0.5 (/ (+ (- (* y y)) (pow x 4)) (+ (* x x) y))))>)
0.877 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) (* 0.5 (- (* x x) y)))> #<alt (λ (x y) (* 0.5 (/ (+ (- (* y y)) (pow x 4)) (+ (* x x) y))))>)
0.889 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) (* 0.5 (- (* x x) y)))> #<alt (λ (x y) (* 0.5 (/ (+ (- (* y y)) (pow x 4)) (+ (* x x) y))))>)
0.902 * * * [regime]: Found split indices: #<option (#s(si 0 255))>
0.902 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* 0.5 (- (* x x) y))
0.903 * * [simplify]: iteration  0 :  7  enodes  (cost  3 )
0.903 * * [simplify]: iteration  1 :  7  enodes  (cost  3 )
0.903 * [simplify]: Simplified to:
   (* 0.5 (- (* x x) y))
1.324 * [regime-testing]: Baseline error score: 0.044755594449306164
1.325 * [regime-testing]: Oracle error score: 0.042880360045005624
1.326 * [regime-testing]: End program error score: 0.044755594449306164