0.831 * [progress]: [Phase 1 of 3] Setting up.
0.002 * * * [progress]: [1/2] Preparing points
0.260 * * * [progress]: [2/2] Setting up program.
0.263 * [progress]: [Phase 2 of 3] Improving.
0.265 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* 0.5 (- (* x x) y))
0.268 * * [simplify]: iteration  0 :  10  enodes  (cost  3 )
0.270 * * [simplify]: iteration  1 :  17  enodes  (cost  3 )
0.271 * * [simplify]: iteration  2 :  29  enodes  (cost  3 )
0.273 * * [simplify]: iteration  3 :  41  enodes  (cost  3 )
0.274 * * [simplify]: iteration  4 :  44  enodes  (cost  3 )
0.276 * * [simplify]: iteration  5 :  44  enodes  (cost  3 )
0.276 * [simplify]: Simplified to:
   (* 0.5 (- (* x x) y))
0.278 * * [progress]: iteration 1 / 4
0.278 * * * [progress]: picking best candidate
0.279 * * * * [pick]: Picked  #<alt (λ (x y) (* 0.5 (- (* x x) y)))>
0.279 * * * [progress]: localizing error
0.286 * * * [progress]: generating rewritten candidates
0.286 * * * * [progress]: [ 1 / 2 ] rewriting at (2)
0.295 * * * * [progress]: [ 2 / 2 ] rewriting at (2 2)
0.302 * * * [progress]: generating series expansions
0.302 * * * * [progress]: [ 1 / 2 ] generating series at (2)
0.307 * [approximate]: Taking taylor expansion of (* 0.5 (- (pow x 2) y)) in (x y) around 0
0.307 * [taylor]: Taking taylor expansion of (* 0.5 (- (pow x 2) y)) in y
0.307 * [taylor]: Taking taylor expansion of 0.5 in y
0.307 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in y
0.308 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.308 * [taylor]: Taking taylor expansion of x in y
0.308 * [taylor]: Taking taylor expansion of y in y
0.308 * [taylor]: Taking taylor expansion of (* 0.5 (- (pow x 2) y)) in x
0.308 * [taylor]: Taking taylor expansion of 0.5 in x
0.308 * [taylor]: Taking taylor expansion of (- (pow x 2) y) 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 y in x
0.308 * [taylor]: Taking taylor expansion of (* 0.5 (- (pow x 2) y)) in x
0.308 * [taylor]: Taking taylor expansion of 0.5 in x
0.308 * [taylor]: Taking taylor expansion of (- (pow x 2) y) 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 y in x
0.309 * [taylor]: Taking taylor expansion of (* -0.5 y) in y
0.309 * [taylor]: Taking taylor expansion of -0.5 in y
0.309 * [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 0.5 in y
0.316 * [taylor]: Taking taylor expansion of 0 in y
0.317 * [approximate]: Taking taylor expansion of (* 0.5 (- (/ 1 (pow x 2)) (/ 1 y))) in (x y) around 0
0.317 * [taylor]: Taking taylor expansion of (* 0.5 (- (/ 1 (pow x 2)) (/ 1 y))) in y
0.317 * [taylor]: Taking taylor expansion of 0.5 in y
0.317 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in y
0.317 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.317 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.317 * [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
0.318 * [taylor]: Taking taylor expansion of (* 0.5 (- (/ 1 (pow x 2)) (/ 1 y))) in x
0.318 * [taylor]: Taking taylor expansion of 0.5 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 (* 0.5 (- (/ 1 (pow x 2)) (/ 1 y))) in x
0.318 * [taylor]: Taking taylor expansion of 0.5 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
0.319 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.319 * [taylor]: Taking taylor expansion of y in x
0.320 * [taylor]: Taking taylor expansion of 0.5 in y
0.322 * [taylor]: Taking taylor expansion of 0 in y
0.323 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 y))) in y
0.323 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.323 * [taylor]: Taking taylor expansion of 0.5 in y
0.323 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.323 * [taylor]: Taking taylor expansion of y in y
0.326 * [taylor]: Taking taylor expansion of 0 in y
0.330 * [taylor]: Taking taylor expansion of 0 in y
0.331 * [approximate]: Taking taylor expansion of (* 0.5 (+ (/ 1 (pow x 2)) (/ 1 y))) in (x y) around 0
0.331 * [taylor]: Taking taylor expansion of (* 0.5 (+ (/ 1 (pow x 2)) (/ 1 y))) in y
0.331 * [taylor]: Taking taylor expansion of 0.5 in y
0.331 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in y
0.331 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.331 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.331 * [taylor]: Taking taylor expansion of x in y
0.331 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.331 * [taylor]: Taking taylor expansion of y in y
0.332 * [taylor]: Taking taylor expansion of (* 0.5 (+ (/ 1 (pow x 2)) (/ 1 y))) in x
0.332 * [taylor]: Taking taylor expansion of 0.5 in x
0.332 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.332 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.332 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.332 * [taylor]: Taking taylor expansion of x in x
0.332 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.332 * [taylor]: Taking taylor expansion of y in x
0.332 * [taylor]: Taking taylor expansion of (* 0.5 (+ (/ 1 (pow x 2)) (/ 1 y))) in x
0.332 * [taylor]: Taking taylor expansion of 0.5 in x
0.332 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.332 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.332 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.332 * [taylor]: Taking taylor expansion of x in x
0.333 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.333 * [taylor]: Taking taylor expansion of y in x
0.333 * [taylor]: Taking taylor expansion of 0.5 in y
0.335 * [taylor]: Taking taylor expansion of 0 in y
0.336 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.336 * [taylor]: Taking taylor expansion of 0.5 in y
0.337 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.337 * [taylor]: Taking taylor expansion of y in y
0.339 * [taylor]: Taking taylor expansion of 0 in y
0.342 * [taylor]: Taking taylor expansion of 0 in y
0.343 * * * * [progress]: [ 2 / 2 ] generating series at (2 2)
0.343 * [approximate]: Taking taylor expansion of (- (pow x 2) y) in (x y) around 0
0.343 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in y
0.343 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.343 * [taylor]: Taking taylor expansion of x in y
0.343 * [taylor]: Taking taylor expansion of y in y
0.343 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in x
0.343 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.343 * [taylor]: Taking taylor expansion of x in x
0.343 * [taylor]: Taking taylor expansion of y in x
0.343 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in x
0.343 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.343 * [taylor]: Taking taylor expansion of x in x
0.343 * [taylor]: Taking taylor expansion of y in x
0.343 * [taylor]: Taking taylor expansion of (- y) in y
0.343 * [taylor]: Taking taylor expansion of y in y
0.344 * [taylor]: Taking taylor expansion of 0 in y
0.345 * [taylor]: Taking taylor expansion of 1 in y
0.346 * [taylor]: Taking taylor expansion of 0 in y
0.347 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in (x y) around 0
0.347 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in y
0.347 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.347 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.347 * [taylor]: Taking taylor expansion of x in y
0.347 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.347 * [taylor]: Taking taylor expansion of y in y
0.347 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.347 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.347 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.347 * [taylor]: Taking taylor expansion of x in x
0.348 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.348 * [taylor]: Taking taylor expansion of y in x
0.348 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.348 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.348 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.348 * [taylor]: Taking taylor expansion of x in x
0.361 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.361 * [taylor]: Taking taylor expansion of y in x
0.361 * [taylor]: Taking taylor expansion of 1 in y
0.362 * [taylor]: Taking taylor expansion of 0 in y
0.363 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in y
0.363 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.363 * [taylor]: Taking taylor expansion of y in y
0.365 * [taylor]: Taking taylor expansion of 0 in y
0.368 * [taylor]: Taking taylor expansion of 0 in y
0.368 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in (x y) around 0
0.368 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in y
0.368 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.368 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.368 * [taylor]: Taking taylor expansion of x in y
0.368 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.368 * [taylor]: Taking taylor expansion of y in y
0.368 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.368 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.368 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.368 * [taylor]: Taking taylor expansion of x in x
0.369 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.369 * [taylor]: Taking taylor expansion of y in x
0.369 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.369 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.369 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.369 * [taylor]: Taking taylor expansion of x in x
0.370 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.370 * [taylor]: Taking taylor expansion of y in x
0.370 * [taylor]: Taking taylor expansion of 1 in y
0.371 * [taylor]: Taking taylor expansion of 0 in y
0.372 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.372 * [taylor]: Taking taylor expansion of y in y
0.374 * [taylor]: Taking taylor expansion of 0 in y
0.376 * [taylor]: Taking taylor expansion of 0 in y
0.376 * * * [progress]: simplifying candidates
0.377 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (expm1 (* 0.5 (- (* x x) y)))
  (log1p (* 0.5 (- (* x x) y)))
  (* 0.5 (- (* x x) y))
  (+ (log 0.5) (log (- (* x x) y)))
  (log (* 0.5 (- (* x x) y)))
  (exp (* 0.5 (- (* x x) y)))
  (* (* (* 0.5 0.5) 0.5) (* (* (- (* x x) y) (- (* x x) y)) (- (* x x) y)))
  (* (cbrt (* 0.5 (- (* x x) y))) (cbrt (* 0.5 (- (* x x) y))))
  (cbrt (* 0.5 (- (* x x) y)))
  (* (* (* 0.5 (- (* x x) y)) (* 0.5 (- (* x x) y))) (* 0.5 (- (* x x) y)))
  (sqrt (* 0.5 (- (* x x) y)))
  (sqrt (* 0.5 (- (* x x) y)))
  (* (sqrt 0.5) (sqrt (- (* x x) y)))
  (* (sqrt 0.5) (sqrt (- (* x x) y)))
  (* 0.5 (fma x x (- (* (cbrt y) (* (cbrt y) (cbrt y))))))
  (* 0.5 (fma (- (cbrt y)) (* (cbrt y) (cbrt y)) (* (cbrt y) (* (cbrt y) (cbrt y)))))
  (* 0.5 (fma x x (- (* (sqrt y) (sqrt y)))))
  (* 0.5 (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))))
  (* 0.5 (fma x x (- (* y 1))))
  (* 0.5 (fma (- y) 1 (* y 1)))
  (* 0.5 (* x x))
  (* 0.5 (- y))
  (* 0.5 (* x x))
  (* 0.5 (- y))
  (* (fma x x (- (* (cbrt y) (* (cbrt y) (cbrt y))))) 0.5)
  (* (fma (- (cbrt y)) (* (cbrt y) (cbrt y)) (* (cbrt y) (* (cbrt y) (cbrt y)))) 0.5)
  (* (fma x x (- (* (sqrt y) (sqrt y)))) 0.5)
  (* (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))) 0.5)
  (* (fma x x (- (* y 1))) 0.5)
  (* (fma (- y) 1 (* y 1)) 0.5)
  (* (* x x) 0.5)
  (* (- y) 0.5)
  (* (* x x) 0.5)
  (* (- y) 0.5)
  (* 0.5 (* (cbrt (- (* x x) y)) (cbrt (- (* x x) y))))
  (* 0.5 (sqrt (- (* x x) y)))
  (* 0.5 1)
  (* 0.5 (+ x (sqrt y)))
  (* (cbrt 0.5) (- (* x x) y))
  (* (sqrt 0.5) (- (* x x) y))
  (* 0.5 (- (* x x) y))
  (* 0.5 (- (pow (* x x) 3) (pow y 3)))
  (* 0.5 (- (* (* x x) (* x x)) (* y y)))
  (fma x x (- (* (cbrt y) (* (cbrt y) (cbrt y)))))
  (fma (- (cbrt y)) (* (cbrt y) (cbrt y)) (* (cbrt y) (* (cbrt y) (cbrt y))))
  (fma x x (- (* (sqrt y) (sqrt y))))
  (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y)))
  (fma x x (- (* y 1)))
  (fma (- y) 1 (* y 1))
  (expm1 (- (* x x) y))
  (log1p (- (* x x) 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)
  (- (* 0.5 (pow x 2)) (* 0.5 y))
  (- (* 0.5 (pow x 2)) (* 0.5 y))
  (- (* 0.5 (pow x 2)) (* 0.5 y))
  (- (pow x 2) y)
  (- (pow x 2) y)
  (- (pow x 2) y)
0.382 * * [simplify]: iteration  0 :  205  enodes  (cost  300 )
0.386 * * [simplify]: iteration  1 :  863  enodes  (cost  232 )
0.406 * * [simplify]: iteration  2 :  4836  enodes  (cost  219 )
0.514 * * [simplify]: iteration  3 :  5001  enodes  (cost  219 )
0.515 * [simplify]: Simplified to:
   (expm1 (* 0.5 (- (* x x) y)))
  (log1p (* 0.5 (- (* x x) y)))
  (* 0.5 (- (pow x 2) y))
  (log (* 0.5 (- (* x x) y)))
  (log (* 0.5 (- (* x x) y)))
  (exp (* 0.5 (- (* x x) y)))
  (pow (* 0.5 (- (pow x 2) y)) 3)
  (* (cbrt (* 0.5 (- (* x x) y))) (cbrt (* 0.5 (- (* x x) y))))
  (cbrt (* 0.5 (- (* x x) y)))
  (pow (* 0.5 (- (pow x 2) y)) 3)
  (sqrt (* 0.5 (- (* x x) y)))
  (sqrt (* 0.5 (- (* x x) y)))
  (* (sqrt 0.5) (sqrt (- (* x x) y)))
  (* (sqrt 0.5) (sqrt (- (* x x) y)))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (- y y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (- y y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (- y y))
  (* 0.5 (* x x))
  (* 0.5 (- y))
  (* 0.5 (* x x))
  (* 0.5 (- y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (- y y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (- y y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (- y y))
  (* 0.5 (* x x))
  (* 0.5 (- y))
  (* 0.5 (* x x))
  (* 0.5 (- y))
  (* 0.5 (* (cbrt (- (* x x) y)) (cbrt (- (* x x) y))))
  (* 0.5 (sqrt (- (* x x) y)))
  0.5
  (* 0.5 (+ x (sqrt y)))
  (* (cbrt 0.5) (- (* x x) y))
  (* (sqrt 0.5) (- (* x x) y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (- (pow (* x x) 3) (pow y 3)))
  (* 0.5 (fma (- y) y (pow x 4)))
  (- (* x x) y)
  (- y y)
  (- (* x x) y)
  (- y y)
  (- (* x x) y)
  (- y y)
  (expm1 (- (* x x) y))
  (log1p (- (* x x) y))
  (- y)
  (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 (- (* x x) y) 3)
  (sqrt (- (* x x) y))
  (sqrt (- (* x x) y))
  (- (pow (* x x) 3) (pow y 3))
  (fma (fma x x y) y (pow x 4))
  (- y)
  (fma (- y) y (pow x 4))
  (fma x x y)
  (+ x (sqrt y))
  (- x (sqrt y))
  (- y)
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (- (pow x 2) y))
  (- (* x x) y)
  (- (* x x) y)
  (- (* x x) y)
0.516 * * * [progress]: adding candidates to table
0.605 * * [progress]: iteration 2 / 4
0.605 * * * [progress]: picking best candidate
0.607 * * * * [pick]: Picked  #<alt (λ (x y) (* 0.5 (fma x x (- y))))>
0.608 * * * [progress]: localizing error
0.613 * * * [progress]: generating rewritten candidates
0.613 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.617 * * * [progress]: generating series expansions
0.617 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.617 * [approximate]: Taking taylor expansion of (* 0.5 (fma x x (- y))) in (x y) around 0
0.617 * [taylor]: Taking taylor expansion of (* 0.5 (fma x x (- y))) in y
0.617 * [taylor]: Taking taylor expansion of 0.5 in y
0.617 * [taylor]: Taking taylor expansion of (fma x x (- y)) in y
0.619 * [taylor]: Rewrote expression to (+ (* x x) (- y))
0.619 * [taylor]: Taking taylor expansion of (* x x) in y
0.619 * [taylor]: Taking taylor expansion of x in y
0.619 * [taylor]: Taking taylor expansion of x in y
0.619 * [taylor]: Taking taylor expansion of (- y) in y
0.619 * [taylor]: Taking taylor expansion of y in y
0.619 * [taylor]: Taking taylor expansion of (* 0.5 (fma x x (- y))) in x
0.619 * [taylor]: Taking taylor expansion of 0.5 in x
0.619 * [taylor]: Taking taylor expansion of (fma x x (- y)) in x
0.619 * [taylor]: Rewrote expression to (+ (* x x) (- y))
0.619 * [taylor]: Taking taylor expansion of (* x x) in x
0.619 * [taylor]: Taking taylor expansion of x in x
0.619 * [taylor]: Taking taylor expansion of x in x
0.619 * [taylor]: Taking taylor expansion of (- y) in x
0.619 * [taylor]: Taking taylor expansion of y in x
0.619 * [taylor]: Taking taylor expansion of (* 0.5 (fma x x (- y))) in x
0.619 * [taylor]: Taking taylor expansion of 0.5 in x
0.619 * [taylor]: Taking taylor expansion of (fma x x (- y)) in x
0.619 * [taylor]: Rewrote expression to (+ (* x x) (- y))
0.619 * [taylor]: Taking taylor expansion of (* x x) in x
0.619 * [taylor]: Taking taylor expansion of x in x
0.619 * [taylor]: Taking taylor expansion of x in x
0.619 * [taylor]: Taking taylor expansion of (- y) in x
0.619 * [taylor]: Taking taylor expansion of y in x
0.620 * [taylor]: Taking taylor expansion of (* -0.5 y) in y
0.620 * [taylor]: Taking taylor expansion of -0.5 in y
0.620 * [taylor]: Taking taylor expansion of y in y
0.621 * [taylor]: Taking taylor expansion of 0 in y
0.624 * [taylor]: Taking taylor expansion of 0.5 in y
0.626 * [taylor]: Taking taylor expansion of 0 in y
0.627 * [approximate]: Taking taylor expansion of (* 0.5 (fma (/ 1 x) (/ 1 x) (- (/ 1 y)))) in (x y) around 0
0.627 * [taylor]: Taking taylor expansion of (* 0.5 (fma (/ 1 x) (/ 1 x) (- (/ 1 y)))) in y
0.627 * [taylor]: Taking taylor expansion of 0.5 in y
0.627 * [taylor]: Taking taylor expansion of (fma (/ 1 x) (/ 1 x) (- (/ 1 y))) in y
0.628 * [taylor]: Rewrote expression to (+ (* (/ 1 x) (/ 1 x)) (- (/ 1 y)))
0.628 * [taylor]: Taking taylor expansion of (* (/ 1 x) (/ 1 x)) in y
0.628 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.628 * [taylor]: Taking taylor expansion of x in y
0.628 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.628 * [taylor]: Taking taylor expansion of x in y
0.628 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in y
0.628 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.628 * [taylor]: Taking taylor expansion of y in y
0.628 * [taylor]: Taking taylor expansion of (* 0.5 (fma (/ 1 x) (/ 1 x) (- (/ 1 y)))) in x
0.628 * [taylor]: Taking taylor expansion of 0.5 in x
0.628 * [taylor]: Taking taylor expansion of (fma (/ 1 x) (/ 1 x) (- (/ 1 y))) in x
0.628 * [taylor]: Rewrote expression to (+ (* (/ 1 x) (/ 1 x)) (- (/ 1 y)))
0.628 * [taylor]: Taking taylor expansion of (* (/ 1 x) (/ 1 x)) in x
0.628 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.628 * [taylor]: Taking taylor expansion of x in x
0.628 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.628 * [taylor]: Taking taylor expansion of x in x
0.629 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in x
0.629 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.629 * [taylor]: Taking taylor expansion of y in x
0.629 * [taylor]: Taking taylor expansion of (* 0.5 (fma (/ 1 x) (/ 1 x) (- (/ 1 y)))) in x
0.629 * [taylor]: Taking taylor expansion of 0.5 in x
0.629 * [taylor]: Taking taylor expansion of (fma (/ 1 x) (/ 1 x) (- (/ 1 y))) in x
0.629 * [taylor]: Rewrote expression to (+ (* (/ 1 x) (/ 1 x)) (- (/ 1 y)))
0.629 * [taylor]: Taking taylor expansion of (* (/ 1 x) (/ 1 x)) in x
0.629 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.629 * [taylor]: Taking taylor expansion of x in x
0.629 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.629 * [taylor]: Taking taylor expansion of x in x
0.630 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in x
0.630 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.630 * [taylor]: Taking taylor expansion of y in x
0.630 * [taylor]: Taking taylor expansion of 0.5 in y
0.632 * [taylor]: Taking taylor expansion of 0 in y
0.634 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 y))) in y
0.634 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.634 * [taylor]: Taking taylor expansion of 0.5 in y
0.634 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.634 * [taylor]: Taking taylor expansion of y in y
0.638 * [taylor]: Taking taylor expansion of 0 in y
0.643 * [taylor]: Taking taylor expansion of 0 in y
0.643 * [approximate]: Taking taylor expansion of (* 0.5 (fma (/ -1 x) (/ -1 x) (/ 1 y))) in (x y) around 0
0.643 * [taylor]: Taking taylor expansion of (* 0.5 (fma (/ -1 x) (/ -1 x) (/ 1 y))) in y
0.643 * [taylor]: Taking taylor expansion of 0.5 in y
0.643 * [taylor]: Taking taylor expansion of (fma (/ -1 x) (/ -1 x) (/ 1 y)) in y
0.643 * [taylor]: Rewrote expression to (+ (* (/ -1 x) (/ -1 x)) (/ 1 y))
0.643 * [taylor]: Taking taylor expansion of (* (/ -1 x) (/ -1 x)) in y
0.643 * [taylor]: Taking taylor expansion of (/ -1 x) in y
0.643 * [taylor]: Taking taylor expansion of -1 in y
0.644 * [taylor]: Taking taylor expansion of x in y
0.644 * [taylor]: Taking taylor expansion of (/ -1 x) in y
0.644 * [taylor]: Taking taylor expansion of -1 in y
0.644 * [taylor]: Taking taylor expansion of x in y
0.644 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.644 * [taylor]: Taking taylor expansion of y in y
0.644 * [taylor]: Taking taylor expansion of (* 0.5 (fma (/ -1 x) (/ -1 x) (/ 1 y))) in x
0.644 * [taylor]: Taking taylor expansion of 0.5 in x
0.644 * [taylor]: Taking taylor expansion of (fma (/ -1 x) (/ -1 x) (/ 1 y)) in x
0.644 * [taylor]: Rewrote expression to (+ (* (/ -1 x) (/ -1 x)) (/ 1 y))
0.644 * [taylor]: Taking taylor expansion of (* (/ -1 x) (/ -1 x)) in x
0.644 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.644 * [taylor]: Taking taylor expansion of -1 in x
0.644 * [taylor]: Taking taylor expansion of x in x
0.645 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.645 * [taylor]: Taking taylor expansion of -1 in x
0.645 * [taylor]: Taking taylor expansion of x in x
0.645 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.645 * [taylor]: Taking taylor expansion of y in x
0.645 * [taylor]: Taking taylor expansion of (* 0.5 (fma (/ -1 x) (/ -1 x) (/ 1 y))) in x
0.645 * [taylor]: Taking taylor expansion of 0.5 in x
0.645 * [taylor]: Taking taylor expansion of (fma (/ -1 x) (/ -1 x) (/ 1 y)) in x
0.645 * [taylor]: Rewrote expression to (+ (* (/ -1 x) (/ -1 x)) (/ 1 y))
0.645 * [taylor]: Taking taylor expansion of (* (/ -1 x) (/ -1 x)) in x
0.645 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.645 * [taylor]: Taking taylor expansion of -1 in x
0.645 * [taylor]: Taking taylor expansion of x in x
0.646 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.646 * [taylor]: Taking taylor expansion of -1 in x
0.646 * [taylor]: Taking taylor expansion of x in x
0.646 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.646 * [taylor]: Taking taylor expansion of y in x
0.647 * [taylor]: Taking taylor expansion of 0.5 in y
0.649 * [taylor]: Taking taylor expansion of 0 in y
0.651 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.651 * [taylor]: Taking taylor expansion of 0.5 in y
0.651 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.651 * [taylor]: Taking taylor expansion of y in y
0.654 * [taylor]: Taking taylor expansion of 0 in y
0.658 * [taylor]: Taking taylor expansion of 0 in y
0.658 * * * [progress]: simplifying candidates
0.659 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (expm1 (* 0.5 (fma x x (- y))))
  (log1p (* 0.5 (fma x x (- y))))
  (* 0.5 (fma x x (- y)))
  (+ (log 0.5) (log (fma x x (- y))))
  (log (* 0.5 (fma x x (- y))))
  (exp (* 0.5 (fma x x (- y))))
  (* (* (* 0.5 0.5) 0.5) (* (* (fma x x (- y)) (fma x x (- y))) (fma x x (- y))))
  (* (cbrt (* 0.5 (fma x x (- y)))) (cbrt (* 0.5 (fma x x (- y)))))
  (cbrt (* 0.5 (fma x x (- y))))
  (* (* (* 0.5 (fma x x (- y))) (* 0.5 (fma x x (- y)))) (* 0.5 (fma x x (- y))))
  (sqrt (* 0.5 (fma x x (- y))))
  (sqrt (* 0.5 (fma x x (- y))))
  (* (sqrt 0.5) (sqrt (fma x x (- y))))
  (* (sqrt 0.5) (sqrt (fma x x (- y))))
  (* 0.5 (* x x))
  (* 0.5 (- y))
  (* (* x x) 0.5)
  (* (- y) 0.5)
  (* 0.5 (* (cbrt (fma x x (- y))) (cbrt (fma x x (- y)))))
  (* 0.5 (sqrt (fma x x (- y))))
  (* 0.5 1)
  (* (cbrt 0.5) (fma x x (- y)))
  (* (sqrt 0.5) (fma x x (- y)))
  (* 0.5 (fma x x (- y)))
  (- (* 0.5 (pow x 2)) (* 0.5 y))
  (- (* 0.5 (pow x 2)) (* 0.5 y))
  (- (* 0.5 (pow x 2)) (* 0.5 y))
0.662 * * [simplify]: iteration  0 :  90  enodes  (cost  116 )
0.664 * * [simplify]: iteration  1 :  363  enodes  (cost  102 )
0.672 * * [simplify]: iteration  2 :  1697  enodes  (cost  102 )
0.701 * * [simplify]: iteration  3 :  5001  enodes  (cost  102 )
0.702 * [simplify]: Simplified to:
   (expm1 (* 0.5 (fma x x (- y))))
  (log1p (* 0.5 (fma x x (- y))))
  (* 0.5 (- (pow x 2) y))
  (log (* 0.5 (fma x x (- y))))
  (log (* 0.5 (fma x x (- y))))
  (exp (* 0.5 (fma x x (- y))))
  (pow (* 0.5 (fma x x (- y))) 3)
  (* (cbrt (* 0.5 (fma x x (- y)))) (cbrt (* 0.5 (fma x x (- y)))))
  (cbrt (* 0.5 (fma x x (- y))))
  (pow (* 0.5 (fma x x (- y))) 3)
  (sqrt (* 0.5 (fma x x (- y))))
  (sqrt (* 0.5 (fma x x (- y))))
  (* (sqrt 0.5) (sqrt (fma x x (- y))))
  (* (sqrt 0.5) (sqrt (fma x x (- y))))
  (* 0.5 (* x x))
  (* 0.5 (- y))
  (* 0.5 (* x x))
  (* 0.5 (- y))
  (* 0.5 (* (cbrt (fma x x (- y))) (cbrt (fma x x (- y)))))
  (* 0.5 (sqrt (fma x x (- y))))
  0.5
  (* (cbrt 0.5) (fma x x (- y)))
  (* (sqrt 0.5) (fma x x (- y)))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (- (pow x 2) y))
0.702 * * * [progress]: adding candidates to table
0.750 * * [progress]: iteration 3 / 4
0.750 * * * [progress]: picking best candidate
0.752 * * * * [pick]: Picked  #<alt (λ (x y) (* (* 0.5 (+ x (sqrt y))) (- x (sqrt y))))>
0.752 * * * [progress]: localizing error
0.759 * * * [progress]: generating rewritten candidates
0.759 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.779 * * * [progress]: generating series expansions
0.779 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.779 * [approximate]: Taking taylor expansion of (* 0.5 (* (- x (sqrt y)) (+ x (sqrt y)))) in (x y) around 0
0.779 * [taylor]: Taking taylor expansion of (* 0.5 (* (- x (sqrt y)) (+ x (sqrt y)))) in y
0.779 * [taylor]: Taking taylor expansion of 0.5 in y
0.779 * [taylor]: Taking taylor expansion of (* (- x (sqrt y)) (+ x (sqrt y))) in y
0.779 * [taylor]: Taking taylor expansion of (- x (sqrt y)) in y
0.779 * [taylor]: Taking taylor expansion of x in y
0.779 * [taylor]: Taking taylor expansion of (sqrt y) in y
0.779 * [taylor]: Taking taylor expansion of y in y
0.781 * [taylor]: Taking taylor expansion of (+ x (sqrt y)) in y
0.781 * [taylor]: Taking taylor expansion of x in y
0.781 * [taylor]: Taking taylor expansion of (sqrt y) in y
0.781 * [taylor]: Taking taylor expansion of y in y
0.782 * [taylor]: Taking taylor expansion of (* 0.5 (* (- x (sqrt y)) (+ x (sqrt y)))) in x
0.782 * [taylor]: Taking taylor expansion of 0.5 in x
0.782 * [taylor]: Taking taylor expansion of (* (- x (sqrt y)) (+ x (sqrt y))) in x
0.782 * [taylor]: Taking taylor expansion of (- x (sqrt y)) in x
0.782 * [taylor]: Taking taylor expansion of x in x
0.782 * [taylor]: Taking taylor expansion of (sqrt y) in x
0.782 * [taylor]: Taking taylor expansion of y in x
0.782 * [taylor]: Taking taylor expansion of (+ x (sqrt y)) in x
0.782 * [taylor]: Taking taylor expansion of x in x
0.782 * [taylor]: Taking taylor expansion of (sqrt y) in x
0.782 * [taylor]: Taking taylor expansion of y in x
0.782 * [taylor]: Taking taylor expansion of (* 0.5 (* (- x (sqrt y)) (+ x (sqrt y)))) in x
0.782 * [taylor]: Taking taylor expansion of 0.5 in x
0.782 * [taylor]: Taking taylor expansion of (* (- x (sqrt y)) (+ x (sqrt y))) in x
0.782 * [taylor]: Taking taylor expansion of (- x (sqrt y)) in x
0.782 * [taylor]: Taking taylor expansion of x in x
0.783 * [taylor]: Taking taylor expansion of (sqrt y) in x
0.783 * [taylor]: Taking taylor expansion of y in x
0.783 * [taylor]: Taking taylor expansion of (+ x (sqrt y)) in x
0.783 * [taylor]: Taking taylor expansion of x in x
0.783 * [taylor]: Taking taylor expansion of (sqrt y) in x
0.783 * [taylor]: Taking taylor expansion of y in x
0.783 * [taylor]: Taking taylor expansion of (* -0.5 y) in y
0.783 * [taylor]: Taking taylor expansion of -0.5 in y
0.783 * [taylor]: Taking taylor expansion of y in y
0.784 * [taylor]: Taking taylor expansion of 0 in y
0.788 * [taylor]: Taking taylor expansion of 0.5 in y
0.792 * [taylor]: Taking taylor expansion of 0 in y
0.793 * [approximate]: Taking taylor expansion of (* 0.5 (* (- (/ 1 x) (sqrt (/ 1 y))) (+ (sqrt (/ 1 y)) (/ 1 x)))) in (x y) around 0
0.793 * [taylor]: Taking taylor expansion of (* 0.5 (* (- (/ 1 x) (sqrt (/ 1 y))) (+ (sqrt (/ 1 y)) (/ 1 x)))) in y
0.793 * [taylor]: Taking taylor expansion of 0.5 in y
0.793 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (sqrt (/ 1 y))) (+ (sqrt (/ 1 y)) (/ 1 x))) in y
0.793 * [taylor]: Taking taylor expansion of (- (/ 1 x) (sqrt (/ 1 y))) in y
0.793 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.793 * [taylor]: Taking taylor expansion of x in y
0.793 * [taylor]: Taking taylor expansion of (sqrt (/ 1 y)) in y
0.793 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.793 * [taylor]: Taking taylor expansion of y in y
0.795 * [taylor]: Taking taylor expansion of (+ (sqrt (/ 1 y)) (/ 1 x)) in y
0.795 * [taylor]: Taking taylor expansion of (sqrt (/ 1 y)) in y
0.795 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.795 * [taylor]: Taking taylor expansion of y in y
0.796 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.796 * [taylor]: Taking taylor expansion of x in y
0.796 * [taylor]: Taking taylor expansion of (* 0.5 (* (- (/ 1 x) (sqrt (/ 1 y))) (+ (sqrt (/ 1 y)) (/ 1 x)))) in x
0.796 * [taylor]: Taking taylor expansion of 0.5 in x
0.796 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (sqrt (/ 1 y))) (+ (sqrt (/ 1 y)) (/ 1 x))) in x
0.796 * [taylor]: Taking taylor expansion of (- (/ 1 x) (sqrt (/ 1 y))) in x
0.796 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.796 * [taylor]: Taking taylor expansion of x in x
0.797 * [taylor]: Taking taylor expansion of (sqrt (/ 1 y)) in x
0.797 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.797 * [taylor]: Taking taylor expansion of y in x
0.797 * [taylor]: Taking taylor expansion of (+ (sqrt (/ 1 y)) (/ 1 x)) in x
0.797 * [taylor]: Taking taylor expansion of (sqrt (/ 1 y)) in x
0.797 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.797 * [taylor]: Taking taylor expansion of y in x
0.797 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.797 * [taylor]: Taking taylor expansion of x in x
0.797 * [taylor]: Taking taylor expansion of (* 0.5 (* (- (/ 1 x) (sqrt (/ 1 y))) (+ (sqrt (/ 1 y)) (/ 1 x)))) in x
0.797 * [taylor]: Taking taylor expansion of 0.5 in x
0.797 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (sqrt (/ 1 y))) (+ (sqrt (/ 1 y)) (/ 1 x))) in x
0.797 * [taylor]: Taking taylor expansion of (- (/ 1 x) (sqrt (/ 1 y))) in x
0.797 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.797 * [taylor]: Taking taylor expansion of x in x
0.798 * [taylor]: Taking taylor expansion of (sqrt (/ 1 y)) in x
0.798 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.798 * [taylor]: Taking taylor expansion of y in x
0.798 * [taylor]: Taking taylor expansion of (+ (sqrt (/ 1 y)) (/ 1 x)) in x
0.798 * [taylor]: Taking taylor expansion of (sqrt (/ 1 y)) in x
0.798 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.798 * [taylor]: Taking taylor expansion of y in x
0.798 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.798 * [taylor]: Taking taylor expansion of x in x
0.799 * [taylor]: Taking taylor expansion of 0.5 in y
0.801 * [taylor]: Taking taylor expansion of 0 in y
0.803 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 y))) in y
0.804 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.804 * [taylor]: Taking taylor expansion of 0.5 in y
0.804 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.804 * [taylor]: Taking taylor expansion of y in y
0.808 * [taylor]: Taking taylor expansion of 0 in y
0.813 * [taylor]: Taking taylor expansion of 0 in y
0.820 * [taylor]: Taking taylor expansion of 0 in y
0.820 * [approximate]: Taking taylor expansion of (* -0.5 (* (+ (sqrt (/ -1 y)) (/ 1 x)) (- (sqrt (/ -1 y)) (/ 1 x)))) in (x y) around 0
0.820 * [taylor]: Taking taylor expansion of (* -0.5 (* (+ (sqrt (/ -1 y)) (/ 1 x)) (- (sqrt (/ -1 y)) (/ 1 x)))) in y
0.820 * [taylor]: Taking taylor expansion of -0.5 in y
0.820 * [taylor]: Taking taylor expansion of (* (+ (sqrt (/ -1 y)) (/ 1 x)) (- (sqrt (/ -1 y)) (/ 1 x))) in y
0.820 * [taylor]: Taking taylor expansion of (+ (sqrt (/ -1 y)) (/ 1 x)) in y
0.821 * [taylor]: Taking taylor expansion of (sqrt (/ -1 y)) in y
0.821 * [taylor]: Taking taylor expansion of (/ -1 y) in y
0.821 * [taylor]: Taking taylor expansion of -1 in y
0.821 * [taylor]: Taking taylor expansion of y in y
0.822 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.822 * [taylor]: Taking taylor expansion of x in y
0.822 * [taylor]: Taking taylor expansion of (- (sqrt (/ -1 y)) (/ 1 x)) in y
0.822 * [taylor]: Taking taylor expansion of (sqrt (/ -1 y)) in y
0.822 * [taylor]: Taking taylor expansion of (/ -1 y) in y
0.822 * [taylor]: Taking taylor expansion of -1 in y
0.822 * [taylor]: Taking taylor expansion of y in y
0.823 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.823 * [taylor]: Taking taylor expansion of x in y
0.823 * [taylor]: Taking taylor expansion of (* -0.5 (* (+ (sqrt (/ -1 y)) (/ 1 x)) (- (sqrt (/ -1 y)) (/ 1 x)))) in x
0.823 * [taylor]: Taking taylor expansion of -0.5 in x
0.823 * [taylor]: Taking taylor expansion of (* (+ (sqrt (/ -1 y)) (/ 1 x)) (- (sqrt (/ -1 y)) (/ 1 x))) in x
0.823 * [taylor]: Taking taylor expansion of (+ (sqrt (/ -1 y)) (/ 1 x)) in x
0.823 * [taylor]: Taking taylor expansion of (sqrt (/ -1 y)) in x
0.823 * [taylor]: Taking taylor expansion of (/ -1 y) in x
0.823 * [taylor]: Taking taylor expansion of -1 in x
0.823 * [taylor]: Taking taylor expansion of y in x
0.824 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.824 * [taylor]: Taking taylor expansion of x in x
0.824 * [taylor]: Taking taylor expansion of (- (sqrt (/ -1 y)) (/ 1 x)) in x
0.824 * [taylor]: Taking taylor expansion of (sqrt (/ -1 y)) in x
0.824 * [taylor]: Taking taylor expansion of (/ -1 y) in x
0.824 * [taylor]: Taking taylor expansion of -1 in x
0.824 * [taylor]: Taking taylor expansion of y in x
0.824 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.824 * [taylor]: Taking taylor expansion of x in x
0.824 * [taylor]: Taking taylor expansion of (* -0.5 (* (+ (sqrt (/ -1 y)) (/ 1 x)) (- (sqrt (/ -1 y)) (/ 1 x)))) in x
0.824 * [taylor]: Taking taylor expansion of -0.5 in x
0.824 * [taylor]: Taking taylor expansion of (* (+ (sqrt (/ -1 y)) (/ 1 x)) (- (sqrt (/ -1 y)) (/ 1 x))) in x
0.824 * [taylor]: Taking taylor expansion of (+ (sqrt (/ -1 y)) (/ 1 x)) in x
0.825 * [taylor]: Taking taylor expansion of (sqrt (/ -1 y)) in x
0.825 * [taylor]: Taking taylor expansion of (/ -1 y) in x
0.825 * [taylor]: Taking taylor expansion of -1 in x
0.825 * [taylor]: Taking taylor expansion of y in x
0.825 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.825 * [taylor]: Taking taylor expansion of x in x
0.825 * [taylor]: Taking taylor expansion of (- (sqrt (/ -1 y)) (/ 1 x)) in x
0.825 * [taylor]: Taking taylor expansion of (sqrt (/ -1 y)) in x
0.825 * [taylor]: Taking taylor expansion of (/ -1 y) in x
0.825 * [taylor]: Taking taylor expansion of -1 in x
0.825 * [taylor]: Taking taylor expansion of y in x
0.825 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.825 * [taylor]: Taking taylor expansion of x in x
0.827 * [taylor]: Taking taylor expansion of 0.5 in y
0.828 * [taylor]: Taking taylor expansion of 0 in y
0.831 * [taylor]: Taking taylor expansion of (- (* 0.5 (pow (sqrt (/ -1 y)) 2))) in y
0.832 * [taylor]: Taking taylor expansion of (* 0.5 (pow (sqrt (/ -1 y)) 2)) in y
0.832 * [taylor]: Taking taylor expansion of 0.5 in y
0.832 * [taylor]: Taking taylor expansion of (pow (sqrt (/ -1 y)) 2) in y
0.832 * [taylor]: Taking taylor expansion of (sqrt (/ -1 y)) in y
0.832 * [taylor]: Taking taylor expansion of (/ -1 y) in y
0.832 * [taylor]: Taking taylor expansion of -1 in y
0.832 * [taylor]: Taking taylor expansion of y in y
0.838 * [taylor]: Taking taylor expansion of 0 in y
0.842 * [taylor]: Taking taylor expansion of 0 in y
0.849 * [taylor]: Taking taylor expansion of 0 in y
0.855 * * * [progress]: simplifying candidates
0.856 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (expm1 (* (* 0.5 (+ x (sqrt y))) (- x (sqrt y))))
  (log1p (* (* 0.5 (+ x (sqrt y))) (- x (sqrt y))))
  (* (* 0.5 (+ x (sqrt y))) (- x (sqrt y)))
  (* (* 0.5 (+ x (sqrt y))) (- x (sqrt y)))
  (+ (+ (log 0.5) (log (+ x (sqrt y)))) (log (- x (sqrt y))))
  (+ (log (* 0.5 (+ x (sqrt y)))) (log (- x (sqrt y))))
  (log (* (* 0.5 (+ x (sqrt y))) (- x (sqrt y))))
  (exp (* (* 0.5 (+ x (sqrt y))) (- x (sqrt y))))
  (* (* (* (* 0.5 0.5) 0.5) (* (* (+ x (sqrt y)) (+ x (sqrt y))) (+ x (sqrt y)))) (* (* (- x (sqrt y)) (- x (sqrt y))) (- x (sqrt y))))
  (* (* (* (* 0.5 (+ x (sqrt y))) (* 0.5 (+ x (sqrt y)))) (* 0.5 (+ x (sqrt y)))) (* (* (- x (sqrt y)) (- x (sqrt y))) (- x (sqrt y))))
  (* (cbrt (* (* 0.5 (+ x (sqrt y))) (- x (sqrt y)))) (cbrt (* (* 0.5 (+ x (sqrt y))) (- x (sqrt y)))))
  (cbrt (* (* 0.5 (+ x (sqrt y))) (- x (sqrt y))))
  (* (* (* (* 0.5 (+ x (sqrt y))) (- x (sqrt y))) (* (* 0.5 (+ x (sqrt y))) (- x (sqrt y)))) (* (* 0.5 (+ x (sqrt y))) (- x (sqrt y))))
  (sqrt (* (* 0.5 (+ x (sqrt y))) (- x (sqrt y))))
  (sqrt (* (* 0.5 (+ x (sqrt y))) (- x (sqrt y))))
  (* (* 0.5 (+ (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)))))
  (* (* 0.5 (+ (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)))
  (* (* 0.5 (- (* 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)))))
  (* (* 0.5 (- (* x x) (* (sqrt y) (sqrt y)))) (- (* x x) (* (sqrt y) (sqrt y))))
  (* (- x (sqrt y)) (+ x (sqrt y)))
  (* (* 0.5 (+ x (sqrt y))) (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (cbrt (sqrt y)) (* (cbrt (sqrt y)) (cbrt (sqrt y)))))))
  (* (* 0.5 (+ x (sqrt y))) (fma (- (cbrt (sqrt y))) (* (cbrt (sqrt y)) (cbrt (sqrt y))) (* (cbrt (sqrt y)) (* (cbrt (sqrt y)) (cbrt (sqrt y))))))
  (* (* 0.5 (+ x (sqrt y))) (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (sqrt (cbrt y)) (sqrt (* (cbrt y) (cbrt y)))))))
  (* (* 0.5 (+ x (sqrt y))) (fma (- (sqrt (cbrt y))) (sqrt (* (cbrt y) (cbrt y))) (* (sqrt (cbrt y)) (sqrt (* (cbrt y) (cbrt y))))))
  (* (* 0.5 (+ x (sqrt y))) (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (sqrt (sqrt y)) (sqrt (sqrt y))))))
  (* (* 0.5 (+ x (sqrt y))) (fma (- (sqrt (sqrt y))) (sqrt (sqrt y)) (* (sqrt (sqrt y)) (sqrt (sqrt y)))))
  (* (* 0.5 (+ x (sqrt y))) (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (sqrt y) (sqrt 1)))))
  (* (* 0.5 (+ x (sqrt y))) (fma (- (sqrt y)) (sqrt 1) (* (sqrt y) (sqrt 1))))
  (* (* 0.5 (+ x (sqrt y))) (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (sqrt (sqrt y)) (sqrt (sqrt y))))))
  (* (* 0.5 (+ x (sqrt y))) (fma (- (sqrt (sqrt y))) (sqrt (sqrt y)) (* (sqrt (sqrt y)) (sqrt (sqrt y)))))
  (* (* 0.5 (+ x (sqrt y))) (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (sqrt y) 1))))
  (* (* 0.5 (+ x (sqrt y))) (fma (- (sqrt y)) 1 (* (sqrt y) 1)))
  (* (* 0.5 (+ x (sqrt y))) (fma (sqrt x) (sqrt x) (- (* (cbrt (sqrt y)) (* (cbrt (sqrt y)) (cbrt (sqrt y)))))))
  (* (* 0.5 (+ x (sqrt y))) (fma (- (cbrt (sqrt y))) (* (cbrt (sqrt y)) (cbrt (sqrt y))) (* (cbrt (sqrt y)) (* (cbrt (sqrt y)) (cbrt (sqrt y))))))
  (* (* 0.5 (+ x (sqrt y))) (fma (sqrt x) (sqrt x) (- (* (sqrt (cbrt y)) (sqrt (* (cbrt y) (cbrt y)))))))
  (* (* 0.5 (+ x (sqrt y))) (fma (- (sqrt (cbrt y))) (sqrt (* (cbrt y) (cbrt y))) (* (sqrt (cbrt y)) (sqrt (* (cbrt y) (cbrt y))))))
  (* (* 0.5 (+ x (sqrt y))) (fma (sqrt x) (sqrt x) (- (* (sqrt (sqrt y)) (sqrt (sqrt y))))))
  (* (* 0.5 (+ x (sqrt y))) (fma (- (sqrt (sqrt y))) (sqrt (sqrt y)) (* (sqrt (sqrt y)) (sqrt (sqrt y)))))
  (* (* 0.5 (+ x (sqrt y))) (fma (sqrt x) (sqrt x) (- (* (sqrt y) (sqrt 1)))))
  (* (* 0.5 (+ x (sqrt y))) (fma (- (sqrt y)) (sqrt 1) (* (sqrt y) (sqrt 1))))
  (* (* 0.5 (+ x (sqrt y))) (fma (sqrt x) (sqrt x) (- (* (sqrt (sqrt y)) (sqrt (sqrt y))))))
  (* (* 0.5 (+ x (sqrt y))) (fma (- (sqrt (sqrt y))) (sqrt (sqrt y)) (* (sqrt (sqrt y)) (sqrt (sqrt y)))))
  (* (* 0.5 (+ x (sqrt y))) (fma (sqrt x) (sqrt x) (- (* (sqrt y) 1))))
  (* (* 0.5 (+ x (sqrt y))) (fma (- (sqrt y)) 1 (* (sqrt y) 1)))
  (* (* 0.5 (+ x (sqrt y))) (fma 1 x (- (* (cbrt (sqrt y)) (* (cbrt (sqrt y)) (cbrt (sqrt y)))))))
  (* (* 0.5 (+ x (sqrt y))) (fma (- (cbrt (sqrt y))) (* (cbrt (sqrt y)) (cbrt (sqrt y))) (* (cbrt (sqrt y)) (* (cbrt (sqrt y)) (cbrt (sqrt y))))))
  (* (* 0.5 (+ x (sqrt y))) (fma 1 x (- (* (sqrt (cbrt y)) (sqrt (* (cbrt y) (cbrt y)))))))
  (* (* 0.5 (+ x (sqrt y))) (fma (- (sqrt (cbrt y))) (sqrt (* (cbrt y) (cbrt y))) (* (sqrt (cbrt y)) (sqrt (* (cbrt y) (cbrt y))))))
  (* (* 0.5 (+ x (sqrt y))) (fma 1 x (- (* (sqrt (sqrt y)) (sqrt (sqrt y))))))
  (* (* 0.5 (+ x (sqrt y))) (fma (- (sqrt (sqrt y))) (sqrt (sqrt y)) (* (sqrt (sqrt y)) (sqrt (sqrt y)))))
  (* (* 0.5 (+ x (sqrt y))) (fma 1 x (- (* (sqrt y) (sqrt 1)))))
  (* (* 0.5 (+ x (sqrt y))) (fma (- (sqrt y)) (sqrt 1) (* (sqrt y) (sqrt 1))))
  (* (* 0.5 (+ x (sqrt y))) (fma 1 x (- (* (sqrt (sqrt y)) (sqrt (sqrt y))))))
  (* (* 0.5 (+ x (sqrt y))) (fma (- (sqrt (sqrt y))) (sqrt (sqrt y)) (* (sqrt (sqrt y)) (sqrt (sqrt y)))))
  (* (* 0.5 (+ x (sqrt y))) (fma 1 x (- (* (sqrt y) 1))))
  (* (* 0.5 (+ x (sqrt y))) (fma (- (sqrt y)) 1 (* (sqrt y) 1)))
  (* (* 0.5 (+ x (sqrt y))) x)
  (* (* 0.5 (+ x (sqrt y))) (- (sqrt y)))
  (* (* 0.5 (+ x (sqrt y))) x)
  (* (* 0.5 (+ x (sqrt y))) (- (sqrt y)))
  (* (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (cbrt (sqrt y)) (* (cbrt (sqrt y)) (cbrt (sqrt y)))))) (* 0.5 (+ x (sqrt y))))
  (* (fma (- (cbrt (sqrt y))) (* (cbrt (sqrt y)) (cbrt (sqrt y))) (* (cbrt (sqrt y)) (* (cbrt (sqrt y)) (cbrt (sqrt y))))) (* 0.5 (+ x (sqrt y))))
  (* (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (sqrt (cbrt y)) (sqrt (* (cbrt y) (cbrt y)))))) (* 0.5 (+ x (sqrt y))))
  (* (fma (- (sqrt (cbrt y))) (sqrt (* (cbrt y) (cbrt y))) (* (sqrt (cbrt y)) (sqrt (* (cbrt y) (cbrt y))))) (* 0.5 (+ x (sqrt y))))
  (* (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (sqrt (sqrt y)) (sqrt (sqrt y))))) (* 0.5 (+ x (sqrt y))))
  (* (fma (- (sqrt (sqrt y))) (sqrt (sqrt y)) (* (sqrt (sqrt y)) (sqrt (sqrt y)))) (* 0.5 (+ x (sqrt y))))
  (* (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (sqrt y) (sqrt 1)))) (* 0.5 (+ x (sqrt y))))
  (* (fma (- (sqrt y)) (sqrt 1) (* (sqrt y) (sqrt 1))) (* 0.5 (+ x (sqrt y))))
  (* (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (sqrt (sqrt y)) (sqrt (sqrt y))))) (* 0.5 (+ x (sqrt y))))
  (* (fma (- (sqrt (sqrt y))) (sqrt (sqrt y)) (* (sqrt (sqrt y)) (sqrt (sqrt y)))) (* 0.5 (+ x (sqrt y))))
  (* (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (sqrt y) 1))) (* 0.5 (+ x (sqrt y))))
  (* (fma (- (sqrt y)) 1 (* (sqrt y) 1)) (* 0.5 (+ x (sqrt y))))
  (* (fma (sqrt x) (sqrt x) (- (* (cbrt (sqrt y)) (* (cbrt (sqrt y)) (cbrt (sqrt y)))))) (* 0.5 (+ x (sqrt y))))
  (* (fma (- (cbrt (sqrt y))) (* (cbrt (sqrt y)) (cbrt (sqrt y))) (* (cbrt (sqrt y)) (* (cbrt (sqrt y)) (cbrt (sqrt y))))) (* 0.5 (+ x (sqrt y))))
  (* (fma (sqrt x) (sqrt x) (- (* (sqrt (cbrt y)) (sqrt (* (cbrt y) (cbrt y)))))) (* 0.5 (+ x (sqrt y))))
  (* (fma (- (sqrt (cbrt y))) (sqrt (* (cbrt y) (cbrt y))) (* (sqrt (cbrt y)) (sqrt (* (cbrt y) (cbrt y))))) (* 0.5 (+ x (sqrt y))))
  (* (fma (sqrt x) (sqrt x) (- (* (sqrt (sqrt y)) (sqrt (sqrt y))))) (* 0.5 (+ x (sqrt y))))
  (* (fma (- (sqrt (sqrt y))) (sqrt (sqrt y)) (* (sqrt (sqrt y)) (sqrt (sqrt y)))) (* 0.5 (+ x (sqrt y))))
  (* (fma (sqrt x) (sqrt x) (- (* (sqrt y) (sqrt 1)))) (* 0.5 (+ x (sqrt y))))
  (* (fma (- (sqrt y)) (sqrt 1) (* (sqrt y) (sqrt 1))) (* 0.5 (+ x (sqrt y))))
  (* (fma (sqrt x) (sqrt x) (- (* (sqrt (sqrt y)) (sqrt (sqrt y))))) (* 0.5 (+ x (sqrt y))))
  (* (fma (- (sqrt (sqrt y))) (sqrt (sqrt y)) (* (sqrt (sqrt y)) (sqrt (sqrt y)))) (* 0.5 (+ x (sqrt y))))
  (* (fma (sqrt x) (sqrt x) (- (* (sqrt y) 1))) (* 0.5 (+ x (sqrt y))))
  (* (fma (- (sqrt y)) 1 (* (sqrt y) 1)) (* 0.5 (+ x (sqrt y))))
  (* (fma 1 x (- (* (cbrt (sqrt y)) (* (cbrt (sqrt y)) (cbrt (sqrt y)))))) (* 0.5 (+ x (sqrt y))))
  (* (fma (- (cbrt (sqrt y))) (* (cbrt (sqrt y)) (cbrt (sqrt y))) (* (cbrt (sqrt y)) (* (cbrt (sqrt y)) (cbrt (sqrt y))))) (* 0.5 (+ x (sqrt y))))
  (* (fma 1 x (- (* (sqrt (cbrt y)) (sqrt (* (cbrt y) (cbrt y)))))) (* 0.5 (+ x (sqrt y))))
  (* (fma (- (sqrt (cbrt y))) (sqrt (* (cbrt y) (cbrt y))) (* (sqrt (cbrt y)) (sqrt (* (cbrt y) (cbrt y))))) (* 0.5 (+ x (sqrt y))))
  (* (fma 1 x (- (* (sqrt (sqrt y)) (sqrt (sqrt y))))) (* 0.5 (+ x (sqrt y))))
  (* (fma (- (sqrt (sqrt y))) (sqrt (sqrt y)) (* (sqrt (sqrt y)) (sqrt (sqrt y)))) (* 0.5 (+ x (sqrt y))))
  (* (fma 1 x (- (* (sqrt y) (sqrt 1)))) (* 0.5 (+ x (sqrt y))))
  (* (fma (- (sqrt y)) (sqrt 1) (* (sqrt y) (sqrt 1))) (* 0.5 (+ x (sqrt y))))
  (* (fma 1 x (- (* (sqrt (sqrt y)) (sqrt (sqrt y))))) (* 0.5 (+ x (sqrt y))))
  (* (fma (- (sqrt (sqrt y))) (sqrt (sqrt y)) (* (sqrt (sqrt y)) (sqrt (sqrt y)))) (* 0.5 (+ x (sqrt y))))
  (* (fma 1 x (- (* (sqrt y) 1))) (* 0.5 (+ x (sqrt y))))
  (* (fma (- (sqrt y)) 1 (* (sqrt y) 1)) (* 0.5 (+ x (sqrt y))))
  (* x (* 0.5 (+ x (sqrt y))))
  (* (- (sqrt y)) (* 0.5 (+ x (sqrt y))))
  (* x (* 0.5 (+ x (sqrt y))))
  (* (- (sqrt y)) (* 0.5 (+ x (sqrt y))))
  (* (* 0.5 (+ x (sqrt y))) (* (cbrt (- x (sqrt y))) (cbrt (- x (sqrt y)))))
  (* (* 0.5 (+ x (sqrt y))) (sqrt (- x (sqrt y))))
  (* (* 0.5 (+ x (sqrt y))) 1)
  (* (* 0.5 (+ x (sqrt y))) (+ (sqrt x) (sqrt (sqrt y))))
  (* (* 0.5 (+ x (sqrt y))) (+ (sqrt x) (sqrt (sqrt y))))
  (* (* 0.5 (+ x (sqrt y))) 1)
  (* (+ x (sqrt y)) (- x (sqrt y)))
  (* (* 0.5 (+ x (sqrt y))) (- (pow x 3) (pow (sqrt y) 3)))
  (* (* 0.5 (+ x (sqrt y))) (- (* x x) (* (sqrt y) (sqrt y))))
  (* (* 0.5 (+ (pow x 3) (pow (sqrt y) 3))) (- x (sqrt y)))
  (* (* 0.5 (- (* x x) (* (sqrt y) (sqrt y)))) (- x (sqrt y)))
  (- (* 0.5 (pow x 2)) (* 0.5 y))
  (- (* 0.5 (pow x 2)) (* 0.5 y))
  (- (* 0.5 (pow x 2)) (+ (* +nan.0 (/ 1 y)) (- +nan.0)))
0.866 * * [simplify]: iteration  0 :  502  enodes  (cost  1245 )
0.876 * * [simplify]: iteration  1 :  3016  enodes  (cost  889 )
0.926 * * [simplify]: iteration  2 :  5002  enodes  (cost  840 )
0.930 * [simplify]: Simplified to:
   (expm1 (* (* 0.5 (+ x (sqrt y))) (- x (sqrt y))))
  (log1p (* (* 0.5 (+ x (sqrt y))) (- x (sqrt y))))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (- (pow x 2) y))
  (log (* 0.5 (- (pow x 2) y)))
  (log (* 0.5 (- (pow x 2) y)))
  (log (* 0.5 (- (pow x 2) y)))
  (pow (exp 0.5) (- (pow x 2) y))
  (pow (* 0.5 (- (pow x 2) y)) 3)
  (pow (* 0.5 (- (pow x 2) y)) 3)
  (* (cbrt (* (* 0.5 (+ x (sqrt y))) (- x (sqrt y)))) (cbrt (* (* 0.5 (+ x (sqrt y))) (- x (sqrt y)))))
  (cbrt (* (* 0.5 (+ x (sqrt y))) (- x (sqrt y))))
  (pow (* 0.5 (- (pow x 2) y)) 3)
  (sqrt (* (* 0.5 (+ x (sqrt y))) (- x (sqrt y))))
  (sqrt (* (* 0.5 (+ x (sqrt y))) (- x (sqrt y))))
  (* (* (- (pow x 3) (pow (sqrt y) 3)) 0.5) (fma y (sqrt y) (pow x 3)))
  (* (+ (+ (pow x 2) y) (* x (sqrt y))) (- (+ (pow x 2) y) (* x (sqrt y))))
  (* (* 0.5 (- (pow x 2) y)) (fma y (sqrt y) (pow x 3)))
  (* (+ x (sqrt y)) (- (+ (pow x 2) y) (* x (sqrt y))))
  (* (* 0.5 (- (pow x 2) y)) (- (pow x 3) (pow (sqrt y) 3)))
  (* (+ (+ (pow x 2) y) (* x (sqrt y))) (- x (sqrt y)))
  (* (* 0.5 (- (pow x 2) y)) (- (pow x 2) y))
  (- (pow x 2) y)
  (* (* 0.5 (+ x (sqrt y))) (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (sqrt y) 1))))
  (* (* (fma (- (sqrt y)) 1 (sqrt y)) (+ x (sqrt y))) 0.5)
  (* (* 0.5 (+ x (sqrt y))) (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (sqrt (cbrt y)) (sqrt (* (cbrt y) (cbrt y)))))))
  (* (* (* (sqrt (cbrt y)) (+ (- (fabs (cbrt y))) (fabs (cbrt y)))) (+ x (sqrt y))) 0.5)
  (* (* 0.5 (+ x (sqrt y))) (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (sqrt y) 1))))
  (* (* (fma (- (sqrt y)) 1 (sqrt y)) (+ x (sqrt y))) 0.5)
  (* (* 0.5 (+ x (sqrt y))) (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (sqrt y) 1))))
  (* (* (fma (- (sqrt y)) 1 (sqrt y)) (+ x (sqrt y))) 0.5)
  (* (* 0.5 (+ x (sqrt y))) (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (sqrt y) 1))))
  (* (* (fma (- (sqrt y)) 1 (sqrt y)) (+ x (sqrt y))) 0.5)
  (* (* 0.5 (+ x (sqrt y))) (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (sqrt y) 1))))
  (* (* (fma (- (sqrt y)) 1 (sqrt y)) (+ x (sqrt y))) 0.5)
  (* 0.5 (- (pow x 2) y))
  (* (* (fma (- (sqrt y)) 1 (sqrt y)) (+ x (sqrt y))) 0.5)
  (* (* 0.5 (+ x (sqrt y))) (fma 1 x (- (* (sqrt (cbrt y)) (sqrt (* (cbrt y) (cbrt y)))))))
  (* (* (* (sqrt (cbrt y)) (+ (- (fabs (cbrt y))) (fabs (cbrt y)))) (+ x (sqrt y))) 0.5)
  (* 0.5 (- (pow x 2) y))
  (* (* (fma (- (sqrt y)) 1 (sqrt y)) (+ x (sqrt y))) 0.5)
  (* 0.5 (- (pow x 2) y))
  (* (* (fma (- (sqrt y)) 1 (sqrt y)) (+ x (sqrt y))) 0.5)
  (* 0.5 (- (pow x 2) y))
  (* (* (fma (- (sqrt y)) 1 (sqrt y)) (+ x (sqrt y))) 0.5)
  (* 0.5 (- (pow x 2) y))
  (* (* (fma (- (sqrt y)) 1 (sqrt y)) (+ x (sqrt y))) 0.5)
  (* 0.5 (- (pow x 2) y))
  (* (* (fma (- (sqrt y)) 1 (sqrt y)) (+ x (sqrt y))) 0.5)
  (* (* 0.5 (+ x (sqrt y))) (fma 1 x (- (* (sqrt (cbrt y)) (sqrt (* (cbrt y) (cbrt y)))))))
  (* (* (* (sqrt (cbrt y)) (+ (- (fabs (cbrt y))) (fabs (cbrt y)))) (+ x (sqrt y))) 0.5)
  (* 0.5 (- (pow x 2) y))
  (* (* (fma (- (sqrt y)) 1 (sqrt y)) (+ x (sqrt y))) 0.5)
  (* 0.5 (- (pow x 2) y))
  (* (* (fma (- (sqrt y)) 1 (sqrt y)) (+ x (sqrt y))) 0.5)
  (* 0.5 (- (pow x 2) y))
  (* (* (fma (- (sqrt y)) 1 (sqrt y)) (+ x (sqrt y))) 0.5)
  (* 0.5 (- (pow x 2) y))
  (* (* (fma (- (sqrt y)) 1 (sqrt y)) (+ x (sqrt y))) 0.5)
  (* (* 0.5 (+ x (sqrt y))) x)
  (* (- (fma (sqrt y) x y)) 0.5)
  (* (* 0.5 (+ x (sqrt y))) x)
  (* (- (fma (sqrt y) x y)) 0.5)
  (* (* 0.5 (+ x (sqrt y))) (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (sqrt y) 1))))
  (* (* (fma (- (sqrt y)) 1 (sqrt y)) (+ x (sqrt y))) 0.5)
  (* (* 0.5 (+ x (sqrt y))) (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (sqrt (cbrt y)) (sqrt (* (cbrt y) (cbrt y)))))))
  (* (* (* (sqrt (cbrt y)) (+ (- (fabs (cbrt y))) (fabs (cbrt y)))) (+ x (sqrt y))) 0.5)
  (* (* 0.5 (+ x (sqrt y))) (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (sqrt y) 1))))
  (* (* (fma (- (sqrt y)) 1 (sqrt y)) (+ x (sqrt y))) 0.5)
  (* (* 0.5 (+ x (sqrt y))) (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (sqrt y) 1))))
  (* (* (fma (- (sqrt y)) 1 (sqrt y)) (+ x (sqrt y))) 0.5)
  (* (* 0.5 (+ x (sqrt y))) (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (sqrt y) 1))))
  (* (* (fma (- (sqrt y)) 1 (sqrt y)) (+ x (sqrt y))) 0.5)
  (* (* 0.5 (+ x (sqrt y))) (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (sqrt y) 1))))
  (* (* (fma (- (sqrt y)) 1 (sqrt y)) (+ x (sqrt y))) 0.5)
  (* 0.5 (- (pow x 2) y))
  (* (* (fma (- (sqrt y)) 1 (sqrt y)) (+ x (sqrt y))) 0.5)
  (* (* 0.5 (+ x (sqrt y))) (fma 1 x (- (* (sqrt (cbrt y)) (sqrt (* (cbrt y) (cbrt y)))))))
  (* (* (* (sqrt (cbrt y)) (+ (- (fabs (cbrt y))) (fabs (cbrt y)))) (+ x (sqrt y))) 0.5)
  (* 0.5 (- (pow x 2) y))
  (* (* (fma (- (sqrt y)) 1 (sqrt y)) (+ x (sqrt y))) 0.5)
  (* 0.5 (- (pow x 2) y))
  (* (* (fma (- (sqrt y)) 1 (sqrt y)) (+ x (sqrt y))) 0.5)
  (* 0.5 (- (pow x 2) y))
  (* (* (fma (- (sqrt y)) 1 (sqrt y)) (+ x (sqrt y))) 0.5)
  (* 0.5 (- (pow x 2) y))
  (* (* (fma (- (sqrt y)) 1 (sqrt y)) (+ x (sqrt y))) 0.5)
  (* 0.5 (- (pow x 2) y))
  (* (* (fma (- (sqrt y)) 1 (sqrt y)) (+ x (sqrt y))) 0.5)
  (* (* 0.5 (+ x (sqrt y))) (fma 1 x (- (* (sqrt (cbrt y)) (sqrt (* (cbrt y) (cbrt y)))))))
  (* (* (* (sqrt (cbrt y)) (+ (- (fabs (cbrt y))) (fabs (cbrt y)))) (+ x (sqrt y))) 0.5)
  (* 0.5 (- (pow x 2) y))
  (* (* (fma (- (sqrt y)) 1 (sqrt y)) (+ x (sqrt y))) 0.5)
  (* 0.5 (- (pow x 2) y))
  (* (* (fma (- (sqrt y)) 1 (sqrt y)) (+ x (sqrt y))) 0.5)
  (* 0.5 (- (pow x 2) y))
  (* (* (fma (- (sqrt y)) 1 (sqrt y)) (+ x (sqrt y))) 0.5)
  (* 0.5 (- (pow x 2) y))
  (* (* (fma (- (sqrt y)) 1 (sqrt y)) (+ x (sqrt y))) 0.5)
  (* (* 0.5 (+ x (sqrt y))) x)
  (* (- (fma (sqrt y) x y)) 0.5)
  (* (* 0.5 (+ x (sqrt y))) x)
  (* (- (fma (sqrt y) x y)) 0.5)
  (* (* 0.5 (+ x (sqrt y))) (* (cbrt (- x (sqrt y))) (cbrt (- x (sqrt y)))))
  (* (* 0.5 (+ x (sqrt y))) (sqrt (- x (sqrt y))))
  (* 0.5 (+ x (sqrt y)))
  (* (* 0.5 (+ x (sqrt y))) (+ (sqrt x) (sqrt (sqrt y))))
  (* (* 0.5 (+ x (sqrt y))) (+ (sqrt x) (sqrt (sqrt y))))
  (* 0.5 (+ x (sqrt y)))
  (- (pow x 2) y)
  (* (* 0.5 (+ x (sqrt y))) (- (pow x 3) (pow (sqrt y) 3)))
  (* (* 0.5 (+ x (sqrt y))) (- (pow x 2) y))
  (* (* (- x (sqrt y)) 0.5) (fma y (sqrt y) (pow x 3)))
  (* (* 0.5 (- (pow x 2) y)) (- x (sqrt y)))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (- (pow x 2) y))
  (fma 0.5 (pow x 2) (- (fma +nan.0 (/ 1 y) (- +nan.0))))
0.931 * * * [progress]: adding candidates to table
1.013 * [progress]: [Phase 3 of 3] Extracting.
1.013 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (* (* 0.5 (+ x (sqrt y))) (- x (sqrt y))))> #<alt (λ (x y) (* 0.5 (fma x x (- y))))>)
1.014 * * * [regime-changes]: Trying 2 branch expressions: (y x)
1.015 * * * * [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 (fma x x (- y))))>)
1.027 * * * * [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 (fma x x (- y))))>)
1.041 * * * [regime]: Found split indices: #<option (#s(si 1 255))>
1.041 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* 0.5 (fma x x (- y)))
1.042 * * [simplify]: iteration  0 :  7  enodes  (cost  3 )
1.042 * * [simplify]: iteration  1 :  7  enodes  (cost  3 )
1.042 * [simplify]: Simplified to:
   (* 0.5 (fma x x (- y)))
1.488 * [regime-testing]: Baseline error score: 0.040005000625078134
1.488 * [regime-testing]: Oracle error score: 0.008001000125015627
1.489 * [regime-testing]: End program error score: 0.040005000625078134