0.836 * [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))
0.272 * * [simplify]: iteration  0 :  9  enodes  (cost  3 )
0.273 * * [simplify]: iteration  1 :  16  enodes  (cost  3 )
0.275 * * [simplify]: iteration  2 :  26  enodes  (cost  3 )
0.276 * * [simplify]: iteration  3 :  33  enodes  (cost  3 )
0.278 * * [simplify]: iteration  4 :  33  enodes  (cost  3 )
0.278 * [simplify]: Simplified to:
   (* 0.5 (- (* x x) y))
0.279 * * [progress]: iteration 1 / 4
0.279 * * * [progress]: picking best candidate
0.281 * * * * [pick]: Picked  #<alt (λ (x y) (* 0.5 (- (* x x) y)))>
0.281 * * * [progress]: localizing error
0.288 * * * [progress]: generating rewritten candidates
0.288 * * * * [progress]: [ 1 / 1 ] rewriting at (2 2)
0.295 * * * [progress]: generating series expansions
0.295 * * * * [progress]: [ 1 / 1 ] generating series at (2 2)
0.300 * [approximate]: Taking taylor expansion of (- (pow x 2) y) in (x y) around 0
0.301 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in y
0.301 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.301 * [taylor]: Taking taylor expansion of x in y
0.301 * [taylor]: Taking taylor expansion of y in y
0.301 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in x
0.301 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.301 * [taylor]: Taking taylor expansion of x in x
0.301 * [taylor]: Taking taylor expansion of y in x
0.301 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in x
0.301 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.301 * [taylor]: Taking taylor expansion of x in x
0.301 * [taylor]: Taking taylor expansion of y in x
0.302 * [taylor]: Taking taylor expansion of (- y) in y
0.302 * [taylor]: Taking taylor expansion of y in y
0.303 * [taylor]: Taking taylor expansion of 0 in y
0.304 * [taylor]: Taking taylor expansion of 1 in y
0.306 * [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
0.307 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.307 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.307 * [taylor]: Taking taylor expansion of x in y
0.307 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.307 * [taylor]: Taking taylor expansion of y in y
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
0.308 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.308 * [taylor]: Taking taylor expansion of y in x
0.308 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.308 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.308 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.308 * [taylor]: Taking taylor expansion of x in x
0.308 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.308 * [taylor]: Taking taylor expansion of y in x
0.309 * [taylor]: Taking taylor expansion of 1 in y
0.310 * [taylor]: Taking taylor expansion of 0 in y
0.311 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in y
0.311 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.311 * [taylor]: Taking taylor expansion of y in y
0.313 * [taylor]: Taking taylor expansion of 0 in y
0.316 * [taylor]: Taking taylor expansion of 0 in y
0.316 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in (x y) around 0
0.316 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in y
0.316 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.316 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.316 * [taylor]: Taking taylor expansion of x in y
0.317 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.317 * [taylor]: Taking taylor expansion of y in y
0.317 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.317 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.317 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.317 * [taylor]: Taking taylor expansion of x in x
0.317 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.317 * [taylor]: Taking taylor expansion of y in x
0.318 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.318 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.318 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.318 * [taylor]: Taking taylor expansion of x in x
0.318 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.318 * [taylor]: Taking taylor expansion of y in x
0.318 * [taylor]: Taking taylor expansion of 1 in y
0.319 * [taylor]: Taking taylor expansion of 0 in y
0.321 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.321 * [taylor]: Taking taylor expansion of y in y
0.322 * [taylor]: Taking taylor expansion of 0 in y
0.324 * [taylor]: Taking taylor expansion of 0 in y
0.324 * * * [progress]: simplifying candidates
0.325 * [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)
0.328 * * [simplify]: iteration  0 :  73  enodes  (cost  63 )
0.330 * * [simplify]: iteration  1 :  216  enodes  (cost  56 )
0.334 * * [simplify]: iteration  2 :  535  enodes  (cost  56 )
0.345 * * [simplify]: iteration  3 :  1812  enodes  (cost  56 )
0.383 * * [simplify]: iteration  4 :  5001  enodes  (cost  56 )
0.384 * [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)
0.384 * * * [progress]: adding candidates to table
0.431 * * [progress]: iteration 2 / 4
0.432 * * * [progress]: picking best candidate
0.433 * * * * [pick]: Picked  #<alt (λ (x y) (* 0.5 (* (+ x (sqrt y)) (- x (sqrt y)))))>
0.433 * * * [progress]: localizing error
0.440 * * * [progress]: generating rewritten candidates
0.440 * * * * [progress]: [ 1 / 2 ] rewriting at (2 2)
0.465 * * * * [progress]: [ 2 / 2 ] rewriting at (2 2 1)
0.470 * * * [progress]: generating series expansions
0.470 * * * * [progress]: [ 1 / 2 ] generating series at (2 2)
0.470 * [approximate]: Taking taylor expansion of (* (- x (sqrt y)) (+ x (sqrt y))) in (x y) around 0
0.470 * [taylor]: Taking taylor expansion of (* (- x (sqrt y)) (+ x (sqrt y))) in y
0.470 * [taylor]: Taking taylor expansion of (- x (sqrt y)) in y
0.470 * [taylor]: Taking taylor expansion of x in y
0.470 * [taylor]: Taking taylor expansion of (sqrt y) in y
0.470 * [taylor]: Taking taylor expansion of y in y
0.472 * [taylor]: Taking taylor expansion of (+ x (sqrt y)) in y
0.472 * [taylor]: Taking taylor expansion of x in y
0.472 * [taylor]: Taking taylor expansion of (sqrt y) in y
0.472 * [taylor]: Taking taylor expansion of y in y
0.473 * [taylor]: Taking taylor expansion of (* (- x (sqrt y)) (+ x (sqrt y))) in x
0.473 * [taylor]: Taking taylor expansion of (- x (sqrt y)) in x
0.473 * [taylor]: Taking taylor expansion of x in x
0.473 * [taylor]: Taking taylor expansion of (sqrt y) in x
0.473 * [taylor]: Taking taylor expansion of y in x
0.473 * [taylor]: Taking taylor expansion of (+ x (sqrt y)) in x
0.473 * [taylor]: Taking taylor expansion of x in x
0.473 * [taylor]: Taking taylor expansion of (sqrt y) in x
0.473 * [taylor]: Taking taylor expansion of y in x
0.473 * [taylor]: Taking taylor expansion of (* (- x (sqrt y)) (+ x (sqrt y))) in x
0.473 * [taylor]: Taking taylor expansion of (- x (sqrt y)) in x
0.473 * [taylor]: Taking taylor expansion of x in x
0.473 * [taylor]: Taking taylor expansion of (sqrt y) in x
0.473 * [taylor]: Taking taylor expansion of y in x
0.473 * [taylor]: Taking taylor expansion of (+ x (sqrt y)) in x
0.473 * [taylor]: Taking taylor expansion of x in x
0.473 * [taylor]: Taking taylor expansion of (sqrt y) in x
0.473 * [taylor]: Taking taylor expansion of y in x
0.474 * [taylor]: Taking taylor expansion of (* -1 y) in y
0.474 * [taylor]: Taking taylor expansion of -1 in y
0.474 * [taylor]: Taking taylor expansion of y in y
0.475 * [taylor]: Taking taylor expansion of 0 in y
0.477 * [taylor]: Taking taylor expansion of 1 in y
0.480 * [taylor]: Taking taylor expansion of 0 in y
0.481 * [approximate]: Taking taylor expansion of (* (- (/ 1 x) (sqrt (/ 1 y))) (+ (sqrt (/ 1 y)) (/ 1 x))) in (x y) around 0
0.481 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (sqrt (/ 1 y))) (+ (sqrt (/ 1 y)) (/ 1 x))) in y
0.481 * [taylor]: Taking taylor expansion of (- (/ 1 x) (sqrt (/ 1 y))) in y
0.481 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.481 * [taylor]: Taking taylor expansion of x in y
0.481 * [taylor]: Taking taylor expansion of (sqrt (/ 1 y)) in y
0.481 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.481 * [taylor]: Taking taylor expansion of y in y
0.482 * [taylor]: Taking taylor expansion of (+ (sqrt (/ 1 y)) (/ 1 x)) in y
0.482 * [taylor]: Taking taylor expansion of (sqrt (/ 1 y)) in y
0.482 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.482 * [taylor]: Taking taylor expansion of y in y
0.488 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.488 * [taylor]: Taking taylor expansion of x in y
0.488 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (sqrt (/ 1 y))) (+ (sqrt (/ 1 y)) (/ 1 x))) in x
0.488 * [taylor]: Taking taylor expansion of (- (/ 1 x) (sqrt (/ 1 y))) in x
0.488 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.488 * [taylor]: Taking taylor expansion of x in x
0.488 * [taylor]: Taking taylor expansion of (sqrt (/ 1 y)) in x
0.488 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.488 * [taylor]: Taking taylor expansion of y in x
0.488 * [taylor]: Taking taylor expansion of (+ (sqrt (/ 1 y)) (/ 1 x)) in x
0.488 * [taylor]: Taking taylor expansion of (sqrt (/ 1 y)) in x
0.488 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.488 * [taylor]: Taking taylor expansion of y in x
0.488 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.489 * [taylor]: Taking taylor expansion of x in x
0.489 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (sqrt (/ 1 y))) (+ (sqrt (/ 1 y)) (/ 1 x))) in x
0.489 * [taylor]: Taking taylor expansion of (- (/ 1 x) (sqrt (/ 1 y))) in x
0.489 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.489 * [taylor]: Taking taylor expansion of x in x
0.489 * [taylor]: Taking taylor expansion of (sqrt (/ 1 y)) in x
0.489 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.489 * [taylor]: Taking taylor expansion of y in x
0.489 * [taylor]: Taking taylor expansion of (+ (sqrt (/ 1 y)) (/ 1 x)) in x
0.489 * [taylor]: Taking taylor expansion of (sqrt (/ 1 y)) in x
0.489 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.489 * [taylor]: Taking taylor expansion of y in x
0.489 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.489 * [taylor]: Taking taylor expansion of x in x
0.491 * [taylor]: Taking taylor expansion of 1 in y
0.492 * [taylor]: Taking taylor expansion of 0 in y
0.494 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in y
0.494 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.494 * [taylor]: Taking taylor expansion of y in y
0.497 * [taylor]: Taking taylor expansion of 0 in y
0.501 * [taylor]: Taking taylor expansion of 0 in y
0.506 * [taylor]: Taking taylor expansion of 0 in y
0.506 * [approximate]: Taking taylor expansion of (* -1 (* (+ (sqrt (/ -1 y)) (/ 1 x)) (- (sqrt (/ -1 y)) (/ 1 x)))) in (x y) around 0
0.507 * [taylor]: Taking taylor expansion of (* -1 (* (+ (sqrt (/ -1 y)) (/ 1 x)) (- (sqrt (/ -1 y)) (/ 1 x)))) in y
0.507 * [taylor]: Taking taylor expansion of -1 in y
0.507 * [taylor]: Taking taylor expansion of (* (+ (sqrt (/ -1 y)) (/ 1 x)) (- (sqrt (/ -1 y)) (/ 1 x))) in y
0.507 * [taylor]: Taking taylor expansion of (+ (sqrt (/ -1 y)) (/ 1 x)) in y
0.507 * [taylor]: Taking taylor expansion of (sqrt (/ -1 y)) in y
0.507 * [taylor]: Taking taylor expansion of (/ -1 y) in y
0.507 * [taylor]: Taking taylor expansion of -1 in y
0.507 * [taylor]: Taking taylor expansion of y in y
0.508 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.508 * [taylor]: Taking taylor expansion of x in y
0.508 * [taylor]: Taking taylor expansion of (- (sqrt (/ -1 y)) (/ 1 x)) in y
0.508 * [taylor]: Taking taylor expansion of (sqrt (/ -1 y)) in y
0.508 * [taylor]: Taking taylor expansion of (/ -1 y) in y
0.508 * [taylor]: Taking taylor expansion of -1 in y
0.508 * [taylor]: Taking taylor expansion of y in y
0.509 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.509 * [taylor]: Taking taylor expansion of x in y
0.510 * [taylor]: Taking taylor expansion of (* -1 (* (+ (sqrt (/ -1 y)) (/ 1 x)) (- (sqrt (/ -1 y)) (/ 1 x)))) in x
0.510 * [taylor]: Taking taylor expansion of -1 in x
0.510 * [taylor]: Taking taylor expansion of (* (+ (sqrt (/ -1 y)) (/ 1 x)) (- (sqrt (/ -1 y)) (/ 1 x))) in x
0.510 * [taylor]: Taking taylor expansion of (+ (sqrt (/ -1 y)) (/ 1 x)) in x
0.510 * [taylor]: Taking taylor expansion of (sqrt (/ -1 y)) in x
0.510 * [taylor]: Taking taylor expansion of (/ -1 y) in x
0.510 * [taylor]: Taking taylor expansion of -1 in x
0.510 * [taylor]: Taking taylor expansion of y in x
0.510 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.510 * [taylor]: Taking taylor expansion of x in x
0.510 * [taylor]: Taking taylor expansion of (- (sqrt (/ -1 y)) (/ 1 x)) in x
0.510 * [taylor]: Taking taylor expansion of (sqrt (/ -1 y)) in x
0.510 * [taylor]: Taking taylor expansion of (/ -1 y) in x
0.510 * [taylor]: Taking taylor expansion of -1 in x
0.510 * [taylor]: Taking taylor expansion of y in x
0.511 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.511 * [taylor]: Taking taylor expansion of x in x
0.511 * [taylor]: Taking taylor expansion of (* -1 (* (+ (sqrt (/ -1 y)) (/ 1 x)) (- (sqrt (/ -1 y)) (/ 1 x)))) in x
0.511 * [taylor]: Taking taylor expansion of -1 in x
0.511 * [taylor]: Taking taylor expansion of (* (+ (sqrt (/ -1 y)) (/ 1 x)) (- (sqrt (/ -1 y)) (/ 1 x))) in x
0.511 * [taylor]: Taking taylor expansion of (+ (sqrt (/ -1 y)) (/ 1 x)) in x
0.511 * [taylor]: Taking taylor expansion of (sqrt (/ -1 y)) in x
0.511 * [taylor]: Taking taylor expansion of (/ -1 y) in x
0.511 * [taylor]: Taking taylor expansion of -1 in x
0.511 * [taylor]: Taking taylor expansion of y in x
0.511 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.511 * [taylor]: Taking taylor expansion of x in x
0.511 * [taylor]: Taking taylor expansion of (- (sqrt (/ -1 y)) (/ 1 x)) in x
0.511 * [taylor]: Taking taylor expansion of (sqrt (/ -1 y)) in x
0.511 * [taylor]: Taking taylor expansion of (/ -1 y) in x
0.511 * [taylor]: Taking taylor expansion of -1 in x
0.511 * [taylor]: Taking taylor expansion of y in x
0.512 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.512 * [taylor]: Taking taylor expansion of x in x
0.513 * [taylor]: Taking taylor expansion of 1 in y
0.515 * [taylor]: Taking taylor expansion of 0 in y
0.517 * [taylor]: Taking taylor expansion of (- (pow (sqrt (/ -1 y)) 2)) in y
0.517 * [taylor]: Taking taylor expansion of (pow (sqrt (/ -1 y)) 2) in y
0.517 * [taylor]: Taking taylor expansion of (sqrt (/ -1 y)) in y
0.517 * [taylor]: Taking taylor expansion of (/ -1 y) in y
0.517 * [taylor]: Taking taylor expansion of -1 in y
0.517 * [taylor]: Taking taylor expansion of y in y
0.523 * [taylor]: Taking taylor expansion of 0 in y
0.527 * [taylor]: Taking taylor expansion of 0 in y
0.533 * [taylor]: Taking taylor expansion of 0 in y
0.538 * * * * [progress]: [ 2 / 2 ] generating series at (2 2 1)
0.538 * [approximate]: Taking taylor expansion of (+ x (sqrt y)) in (x y) around 0
0.538 * [taylor]: Taking taylor expansion of (+ x (sqrt y)) in y
0.538 * [taylor]: Taking taylor expansion of x in y
0.538 * [taylor]: Taking taylor expansion of (sqrt y) in y
0.538 * [taylor]: Taking taylor expansion of y in y
0.539 * [taylor]: Taking taylor expansion of (+ x (sqrt y)) in x
0.540 * [taylor]: Taking taylor expansion of x in x
0.540 * [taylor]: Taking taylor expansion of (sqrt y) in x
0.540 * [taylor]: Taking taylor expansion of y in x
0.540 * [taylor]: Taking taylor expansion of (+ x (sqrt y)) in x
0.540 * [taylor]: Taking taylor expansion of x in x
0.540 * [taylor]: Taking taylor expansion of (sqrt y) in x
0.540 * [taylor]: Taking taylor expansion of y in x
0.540 * [taylor]: Taking taylor expansion of (sqrt y) in y
0.540 * [taylor]: Taking taylor expansion of y in y
0.541 * [taylor]: Taking taylor expansion of 1 in y
0.542 * [taylor]: Taking taylor expansion of 0 in y
0.544 * [approximate]: Taking taylor expansion of (+ (sqrt (/ 1 y)) (/ 1 x)) in (x y) around 0
0.544 * [taylor]: Taking taylor expansion of (+ (sqrt (/ 1 y)) (/ 1 x)) in y
0.544 * [taylor]: Taking taylor expansion of (sqrt (/ 1 y)) in y
0.544 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.544 * [taylor]: Taking taylor expansion of y in y
0.545 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.545 * [taylor]: Taking taylor expansion of x in y
0.545 * [taylor]: Taking taylor expansion of (+ (sqrt (/ 1 y)) (/ 1 x)) in x
0.545 * [taylor]: Taking taylor expansion of (sqrt (/ 1 y)) in x
0.545 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.545 * [taylor]: Taking taylor expansion of y in x
0.546 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.546 * [taylor]: Taking taylor expansion of x in x
0.546 * [taylor]: Taking taylor expansion of (+ (sqrt (/ 1 y)) (/ 1 x)) in x
0.546 * [taylor]: Taking taylor expansion of (sqrt (/ 1 y)) in x
0.546 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.546 * [taylor]: Taking taylor expansion of y in x
0.546 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.546 * [taylor]: Taking taylor expansion of x in x
0.547 * [taylor]: Taking taylor expansion of 1 in y
0.547 * [taylor]: Taking taylor expansion of (sqrt (/ 1 y)) in y
0.547 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.547 * [taylor]: Taking taylor expansion of y in y
0.549 * [taylor]: Taking taylor expansion of 0 in y
0.550 * [taylor]: Taking taylor expansion of 0 in y
0.553 * [approximate]: Taking taylor expansion of (- (sqrt (/ -1 y)) (/ 1 x)) in (x y) around 0
0.553 * [taylor]: Taking taylor expansion of (- (sqrt (/ -1 y)) (/ 1 x)) in y
0.553 * [taylor]: Taking taylor expansion of (sqrt (/ -1 y)) in y
0.553 * [taylor]: Taking taylor expansion of (/ -1 y) in y
0.553 * [taylor]: Taking taylor expansion of -1 in y
0.553 * [taylor]: Taking taylor expansion of y in y
0.554 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.554 * [taylor]: Taking taylor expansion of x in y
0.555 * [taylor]: Taking taylor expansion of (- (sqrt (/ -1 y)) (/ 1 x)) in x
0.555 * [taylor]: Taking taylor expansion of (sqrt (/ -1 y)) in x
0.555 * [taylor]: Taking taylor expansion of (/ -1 y) in x
0.555 * [taylor]: Taking taylor expansion of -1 in x
0.555 * [taylor]: Taking taylor expansion of y in x
0.555 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.555 * [taylor]: Taking taylor expansion of x in x
0.555 * [taylor]: Taking taylor expansion of (- (sqrt (/ -1 y)) (/ 1 x)) in x
0.555 * [taylor]: Taking taylor expansion of (sqrt (/ -1 y)) in x
0.555 * [taylor]: Taking taylor expansion of (/ -1 y) in x
0.555 * [taylor]: Taking taylor expansion of -1 in x
0.555 * [taylor]: Taking taylor expansion of y in x
0.555 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.555 * [taylor]: Taking taylor expansion of x in x
0.556 * [taylor]: Taking taylor expansion of -1 in y
0.557 * [taylor]: Taking taylor expansion of (sqrt (/ -1 y)) in y
0.557 * [taylor]: Taking taylor expansion of (/ -1 y) in y
0.557 * [taylor]: Taking taylor expansion of -1 in y
0.557 * [taylor]: Taking taylor expansion of y in y
0.559 * [taylor]: Taking taylor expansion of 0 in y
0.561 * [taylor]: Taking taylor expansion of 0 in y
0.563 * * * [progress]: simplifying candidates
0.564 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* (+ x (sqrt y)) (- x (sqrt y)))
  (+ (log (+ x (sqrt y))) (log (- x (sqrt y))))
  (log (* (+ x (sqrt y)) (- x (sqrt y))))
  (exp (* (+ x (sqrt y)) (- x (sqrt y))))
  (* (* (* (+ x (sqrt y)) (+ x (sqrt y))) (+ x (sqrt y))) (* (* (- x (sqrt y)) (- x (sqrt y))) (- x (sqrt y))))
  (* (cbrt (* (+ x (sqrt y)) (- x (sqrt y)))) (cbrt (* (+ x (sqrt y)) (- x (sqrt y)))))
  (cbrt (* (+ x (sqrt y)) (- x (sqrt y))))
  (* (* (* (+ x (sqrt y)) (- x (sqrt y))) (* (+ x (sqrt y)) (- x (sqrt y)))) (* (+ x (sqrt y)) (- x (sqrt y))))
  (sqrt (* (+ x (sqrt y)) (- x (sqrt y))))
  (sqrt (* (+ x (sqrt y)) (- x (sqrt y))))
  (* (+ (pow x 3) (pow (sqrt y) 3)) (- (pow x 3) (pow (sqrt y) 3)))
  (* (+ (* x x) (- (* (sqrt y) (sqrt y)) (* x (sqrt y)))) (+ (* x x) (+ (* (sqrt y) (sqrt y)) (* x (sqrt y)))))
  (* (+ (pow x 3) (pow (sqrt y) 3)) (- (* x x) (* (sqrt y) (sqrt y))))
  (* (+ (* x x) (- (* (sqrt y) (sqrt y)) (* x (sqrt y)))) (+ x (sqrt y)))
  (* (- (* x x) (* (sqrt y) (sqrt y))) (- (pow x 3) (pow (sqrt y) 3)))
  (* (- x (sqrt y)) (+ (* x x) (+ (* (sqrt y) (sqrt y)) (* x (sqrt y)))))
  (* (- (* x x) (* (sqrt y) (sqrt y))) (- (* x x) (* (sqrt y) (sqrt y))))
  (* (- x (sqrt y)) (+ x (sqrt y)))
  (* (sqrt (+ x (sqrt y))) (sqrt (- x (sqrt y))))
  (* (sqrt (+ x (sqrt y))) (sqrt (- x (sqrt y))))
  (* (+ x (sqrt y)) x)
  (* (+ x (sqrt y)) (- (sqrt y)))
  (* (+ x (sqrt y)) x)
  (* (+ x (sqrt y)) (- (sqrt y)))
  (* x (+ x (sqrt y)))
  (* (- (sqrt y)) (+ x (sqrt y)))
  (* x (+ x (sqrt y)))
  (* (- (sqrt y)) (+ x (sqrt y)))
  (* (+ x (sqrt y)) (* (cbrt (- x (sqrt y))) (cbrt (- x (sqrt y)))))
  (* (+ x (sqrt y)) (sqrt (- x (sqrt y))))
  (* (+ x (sqrt y)) 1)
  (* (+ x (sqrt y)) (+ (sqrt x) (sqrt (sqrt y))))
  (* (+ x (sqrt y)) (+ (sqrt x) (sqrt (sqrt y))))
  (* (+ x (sqrt y)) 1)
  (* (cbrt (+ x (sqrt y))) (- x (sqrt y)))
  (* (sqrt (+ x (sqrt y))) (- x (sqrt y)))
  (* (+ x (sqrt y)) (- x (sqrt y)))
  (* (+ x (sqrt y)) (- x (sqrt y)))
  (* (+ x (sqrt y)) (- (pow x 3) (pow (sqrt y) 3)))
  (* (+ x (sqrt y)) (- (* x x) (* (sqrt y) (sqrt y))))
  (* (+ (pow x 3) (pow (sqrt y) 3)) (- x (sqrt y)))
  (* (- (* x x) (* (sqrt y) (sqrt y))) (- x (sqrt y)))
  (* (exp x) (exp (sqrt y)))
  (log (+ x (sqrt y)))
  (exp (+ x (sqrt y)))
  (* (cbrt (+ x (sqrt y))) (cbrt (+ x (sqrt y))))
  (cbrt (+ x (sqrt y)))
  (* (* (+ x (sqrt y)) (+ x (sqrt y))) (+ x (sqrt y)))
  (sqrt (+ x (sqrt y)))
  (sqrt (+ x (sqrt y)))
  (+ (pow x 3) (pow (sqrt y) 3))
  (+ (* x x) (- (* (sqrt y) (sqrt y)) (* x (sqrt y))))
  (- (* x x) (* (sqrt y) (sqrt y)))
  (- x (sqrt y))
  (+ x (sqrt y))
  (- (pow x 2) y)
  (- (pow x 2) y)
  (- (pow x 2) (+ (* +nan.0 (/ 1 y)) (- +nan.0)))
  (- x (+ (* +nan.0 (pow y 2)) (- (* +nan.0 y))))
  (- x (+ (* +nan.0 (/ 1 y)) (- +nan.0)))
  (- x (+ (* +nan.0 (/ 1 y)) (- +nan.0)))
0.568 * * [simplify]: iteration  0 :  237  enodes  (cost  346 )
0.572 * * [simplify]: iteration  1 :  1075  enodes  (cost  297 )
0.595 * * [simplify]: iteration  2 :  5002  enodes  (cost  285 )
0.597 * [simplify]: Simplified to:
   (- (pow x 2) y)
  (log (- (pow x 2) y))
  (log (- (pow x 2) y))
  (exp (- (pow x 2) y))
  (pow (- (pow x 2) y) 3)
  (* (cbrt (* (+ x (sqrt y)) (- x (sqrt y)))) (cbrt (* (+ x (sqrt y)) (- x (sqrt y)))))
  (cbrt (* (+ x (sqrt y)) (- x (sqrt y))))
  (pow (- (pow x 2) y) 3)
  (sqrt (* (+ x (sqrt y)) (- x (sqrt y))))
  (sqrt (* (+ x (sqrt y)) (- x (sqrt y))))
  (* (+ (pow x 3) (pow (sqrt y) 3)) (- (pow x 3) (pow (sqrt y) 3)))
  (* (+ (+ (pow x 2) y) (* x (sqrt y))) (- (+ (pow x 2) y) (* x (sqrt y))))
  (* (+ (pow x 3) (pow (sqrt y) 3)) (- (pow x 2) y))
  (* (+ x (sqrt y)) (- (+ (pow x 2) y) (* x (sqrt y))))
  (* (- (pow x 2) y) (- (pow x 3) (pow (sqrt y) 3)))
  (* (+ (+ (pow x 2) y) (* x (sqrt y))) (- x (sqrt y)))
  (* (- (pow x 2) y) (- (pow x 2) y))
  (- (pow x 2) y)
  (* (sqrt (+ x (sqrt y))) (sqrt (- x (sqrt y))))
  (* (sqrt (+ x (sqrt y))) (sqrt (- x (sqrt y))))
  (* x (+ x (sqrt y)))
  (- (+ (* x (sqrt y)) y))
  (* x (+ x (sqrt y)))
  (- (+ (* x (sqrt y)) y))
  (* x (+ x (sqrt y)))
  (- (+ (* x (sqrt y)) y))
  (* x (+ x (sqrt y)))
  (- (+ (* x (sqrt y)) y))
  (* (+ x (sqrt y)) (* (cbrt (- x (sqrt y))) (cbrt (- x (sqrt y)))))
  (* (+ x (sqrt y)) (sqrt (- x (sqrt y))))
  (+ x (sqrt y))
  (* (+ x (sqrt y)) (+ (sqrt x) (sqrt (sqrt y))))
  (* (+ x (sqrt y)) (+ (sqrt x) (sqrt (sqrt y))))
  (+ x (sqrt y))
  (* (cbrt (+ x (sqrt y))) (- x (sqrt y)))
  (* (sqrt (+ x (sqrt y))) (- x (sqrt y)))
  (- (pow x 2) y)
  (- (pow x 2) y)
  (* (+ x (sqrt y)) (- (pow x 3) (pow (sqrt y) 3)))
  (* (- (pow x 2) y) (+ x (sqrt y)))
  (* (+ (pow x 3) (pow (sqrt y) 3)) (- x (sqrt y)))
  (* (- (pow x 2) y) (- x (sqrt y)))
  (exp (+ x (sqrt y)))
  (log (+ x (sqrt y)))
  (exp (+ x (sqrt y)))
  (* (cbrt (+ x (sqrt y))) (cbrt (+ x (sqrt y))))
  (cbrt (+ x (sqrt y)))
  (pow (+ x (sqrt y)) 3)
  (sqrt (+ x (sqrt y)))
  (sqrt (+ x (sqrt y)))
  (+ (pow x 3) (pow (sqrt y) 3))
  (+ (* x (- x (sqrt y))) y)
  (- (pow x 2) y)
  (- x (sqrt y))
  (+ x (sqrt y))
  (- (pow x 2) y)
  (- (pow x 2) y)
  (+ (- (pow x 2) (* +nan.0 (/ 1 y))) +nan.0)
  (+ (- x (* +nan.0 (pow y 2))) (* +nan.0 y))
  (+ (- x (* +nan.0 (/ 1 y))) +nan.0)
  (+ (- x (* +nan.0 (/ 1 y))) +nan.0)
0.597 * * * [progress]: adding candidates to table
0.705 * [progress]: [Phase 3 of 3] Extracting.
0.705 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (* 0.5 (* (+ x (sqrt y)) (- x (sqrt y)))))> #<alt (λ (x y) (* 0.5 (- (* x x) y)))>)
0.706 * * * [regime-changes]: Trying 5 branch expressions: ((* x x) (- (* x x) y) (* 0.5 (- (* x x) y)) y x)
0.706 * * * * [regimes]: Trying to branch on (* x x) from (#<alt (λ (x y) (* 0.5 (* (+ x (sqrt y)) (- x (sqrt y)))))> #<alt (λ (x y) (* 0.5 (- (* x x) y)))>)
0.721 * * * * [regimes]: Trying to branch on (- (* x x) y) from (#<alt (λ (x y) (* 0.5 (* (+ x (sqrt y)) (- x (sqrt y)))))> #<alt (λ (x y) (* 0.5 (- (* x x) y)))>)
0.733 * * * * [regimes]: Trying to branch on (* 0.5 (- (* x x) y)) from (#<alt (λ (x y) (* 0.5 (* (+ x (sqrt y)) (- x (sqrt y)))))> #<alt (λ (x y) (* 0.5 (- (* x x) y)))>)
0.744 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) (* 0.5 (* (+ x (sqrt y)) (- x (sqrt y)))))> #<alt (λ (x y) (* 0.5 (- (* x x) y)))>)
0.758 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) (* 0.5 (* (+ x (sqrt y)) (- x (sqrt y)))))> #<alt (λ (x y) (* 0.5 (- (* x x) y)))>)
0.769 * * * [regime]: Found split indices: #<option (#s(si 1 255))>
0.769 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* 0.5 (- (* x x) y))
0.770 * * [simplify]: iteration  0 :  7  enodes  (cost  3 )
0.770 * * [simplify]: iteration  1 :  7  enodes  (cost  3 )
0.770 * [simplify]: Simplified to:
   (* 0.5 (- (* x x) y))
1.209 * [regime-testing]: Baseline error score: 0.03675459432429053
1.209 * [regime-testing]: Oracle error score: 0.03500437554694337
1.210 * [regime-testing]: End program error score: 0.03675459432429053