0.829 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.260 * * * [progress]: [2/2] Setting up program.
0.262 * [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)
0.305 * * * * [progress]: [ 2 / 2 ] rewriting at (2 2)
0.329 * * * [progress]: generating series expansions
0.342 * * * * [progress]: [ 1 / 2 ] generating series at (2)
0.347 * [approximate]: Taking taylor expansion of (* 0.5 (- (pow x 2) y)) in (x y) around 0
0.348 * [taylor]: Taking taylor expansion of (* 0.5 (- (pow x 2) y)) in y
0.348 * [taylor]: Taking taylor expansion of 0.5 in y
0.348 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in y
0.348 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.348 * [taylor]: Taking taylor expansion of x in y
0.348 * [taylor]: Taking taylor expansion of y in y
0.348 * [taylor]: Taking taylor expansion of (* 0.5 (- (pow x 2) y)) in x
0.348 * [taylor]: Taking taylor expansion of 0.5 in x
0.348 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in x
0.348 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.348 * [taylor]: Taking taylor expansion of x in x
0.348 * [taylor]: Taking taylor expansion of y in x
0.349 * [taylor]: Taking taylor expansion of (* 0.5 (- (pow x 2) y)) in x
0.349 * [taylor]: Taking taylor expansion of 0.5 in x
0.349 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in x
0.349 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.349 * [taylor]: Taking taylor expansion of x in x
0.349 * [taylor]: Taking taylor expansion of y in x
0.349 * [taylor]: Taking taylor expansion of (* -0.5 y) in y
0.349 * [taylor]: Taking taylor expansion of -0.5 in y
0.349 * [taylor]: Taking taylor expansion of y in y
0.351 * [taylor]: Taking taylor expansion of 0 in y
0.354 * [taylor]: Taking taylor expansion of 0.5 in y
0.356 * [taylor]: Taking taylor expansion of 0 in y
0.357 * [approximate]: Taking taylor expansion of (* 0.5 (- (/ 1 (pow x 2)) (/ 1 y))) in (x y) around 0
0.357 * [taylor]: Taking taylor expansion of (* 0.5 (- (/ 1 (pow x 2)) (/ 1 y))) in y
0.358 * [taylor]: Taking taylor expansion of 0.5 in y
0.358 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in y
0.358 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.358 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.358 * [taylor]: Taking taylor expansion of x in y
0.358 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.358 * [taylor]: Taking taylor expansion of y in y
0.358 * [taylor]: Taking taylor expansion of (* 0.5 (- (/ 1 (pow x 2)) (/ 1 y))) in x
0.358 * [taylor]: Taking taylor expansion of 0.5 in x
0.358 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.358 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.358 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.358 * [taylor]: Taking taylor expansion of x in x
0.359 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.359 * [taylor]: Taking taylor expansion of y in x
0.359 * [taylor]: Taking taylor expansion of (* 0.5 (- (/ 1 (pow x 2)) (/ 1 y))) in x
0.359 * [taylor]: Taking taylor expansion of 0.5 in x
0.359 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.359 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.359 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.359 * [taylor]: Taking taylor expansion of x in x
0.359 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.359 * [taylor]: Taking taylor expansion of y in x
0.360 * [taylor]: Taking taylor expansion of 0.5 in y
0.362 * [taylor]: Taking taylor expansion of 0 in y
0.363 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 y))) in y
0.363 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.363 * [taylor]: Taking taylor expansion of 0.5 in y
0.363 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.363 * [taylor]: Taking taylor expansion of y in y
0.366 * [taylor]: Taking taylor expansion of 0 in y
0.370 * [taylor]: Taking taylor expansion of 0 in y
0.371 * [approximate]: Taking taylor expansion of (* 0.5 (+ (/ 1 (pow x 2)) (/ 1 y))) in (x y) around 0
0.371 * [taylor]: Taking taylor expansion of (* 0.5 (+ (/ 1 (pow x 2)) (/ 1 y))) in y
0.371 * [taylor]: Taking taylor expansion of 0.5 in y
0.371 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in y
0.371 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.371 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.371 * [taylor]: Taking taylor expansion of x in y
0.371 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.371 * [taylor]: Taking taylor expansion of y in y
0.371 * [taylor]: Taking taylor expansion of (* 0.5 (+ (/ 1 (pow x 2)) (/ 1 y))) in x
0.371 * [taylor]: Taking taylor expansion of 0.5 in x
0.371 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.371 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.371 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.371 * [taylor]: Taking taylor expansion of x in x
0.372 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.372 * [taylor]: Taking taylor expansion of y in x
0.372 * [taylor]: Taking taylor expansion of (* 0.5 (+ (/ 1 (pow x 2)) (/ 1 y))) in x
0.372 * [taylor]: Taking taylor expansion of 0.5 in x
0.372 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.372 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.372 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.372 * [taylor]: Taking taylor expansion of x in x
0.373 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.373 * [taylor]: Taking taylor expansion of y in x
0.373 * [taylor]: Taking taylor expansion of 0.5 in y
0.375 * [taylor]: Taking taylor expansion of 0 in y
0.376 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.376 * [taylor]: Taking taylor expansion of 0.5 in y
0.376 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.376 * [taylor]: Taking taylor expansion of y in y
0.379 * [taylor]: Taking taylor expansion of 0 in y
0.382 * [taylor]: Taking taylor expansion of 0 in y
0.382 * * * * [progress]: [ 2 / 2 ] generating series at (2 2)
0.382 * [approximate]: Taking taylor expansion of (- (pow x 2) y) in (x y) around 0
0.382 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in y
0.382 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.382 * [taylor]: Taking taylor expansion of x in y
0.382 * [taylor]: Taking taylor expansion of y in y
0.382 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in x
0.382 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.382 * [taylor]: Taking taylor expansion of x in x
0.382 * [taylor]: Taking taylor expansion of y in x
0.383 * [taylor]: Taking taylor expansion of (- (pow x 2) y) in x
0.383 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.383 * [taylor]: Taking taylor expansion of x in x
0.383 * [taylor]: Taking taylor expansion of y in x
0.383 * [taylor]: Taking taylor expansion of (- y) in y
0.383 * [taylor]: Taking taylor expansion of y in y
0.383 * [taylor]: Taking taylor expansion of 0 in y
0.384 * [taylor]: Taking taylor expansion of 1 in y
0.386 * [taylor]: Taking taylor expansion of 0 in y
0.386 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in (x y) around 0
0.386 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in y
0.386 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.386 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.386 * [taylor]: Taking taylor expansion of x in y
0.386 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.386 * [taylor]: Taking taylor expansion of y in y
0.387 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.387 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.387 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.387 * [taylor]: Taking taylor expansion of x in x
0.387 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.387 * [taylor]: Taking taylor expansion of y in x
0.387 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 y)) in x
0.387 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.387 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.387 * [taylor]: Taking taylor expansion of x in x
0.388 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.388 * [taylor]: Taking taylor expansion of y in x
0.389 * [taylor]: Taking taylor expansion of 1 in y
0.390 * [taylor]: Taking taylor expansion of 0 in y
0.391 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in y
0.391 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.391 * [taylor]: Taking taylor expansion of y in y
0.393 * [taylor]: Taking taylor expansion of 0 in y
0.396 * [taylor]: Taking taylor expansion of 0 in y
0.396 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in (x y) around 0
0.396 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in y
0.396 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.396 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.396 * [taylor]: Taking taylor expansion of x in y
0.396 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.396 * [taylor]: Taking taylor expansion of y in y
0.396 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.396 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.396 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.396 * [taylor]: Taking taylor expansion of x in x
0.397 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.397 * [taylor]: Taking taylor expansion of y in x
0.397 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 y)) in x
0.397 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.397 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.397 * [taylor]: Taking taylor expansion of x in x
0.398 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.398 * [taylor]: Taking taylor expansion of y in x
0.398 * [taylor]: Taking taylor expansion of 1 in y
0.399 * [taylor]: Taking taylor expansion of 0 in y
0.400 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.400 * [taylor]: Taking taylor expansion of y in y
0.402 * [taylor]: Taking taylor expansion of 0 in y
0.404 * [taylor]: Taking taylor expansion of 0 in y
0.404 * * * [progress]: simplifying candidates
0.408 * [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 (fma (* (cbrt (* x x)) (cbrt (* x x))) (cbrt (* 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 (* (cbrt (* x x)) (cbrt (* x x))) (cbrt (* x x)) (- (* (sqrt y) (sqrt y)))))
  (* 0.5 (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))))
  (* 0.5 (fma (* (cbrt (* x x)) (cbrt (* x x))) (cbrt (* x x)) (- (* y 1))))
  (* 0.5 (fma (- y) 1 (* y 1)))
  (* 0.5 (fma (sqrt (* x x)) (sqrt (* 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 (sqrt (* x x)) (sqrt (* x x)) (- (* (sqrt y) (sqrt y)))))
  (* 0.5 (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))))
  (* 0.5 (fma (sqrt (* x x)) (sqrt (* x x)) (- (* y 1))))
  (* 0.5 (fma (- y) 1 (* y 1)))
  (* 0.5 (fma 1 (* 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 1 (* x x) (- (* (sqrt y) (sqrt y)))))
  (* 0.5 (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))))
  (* 0.5 (fma 1 (* x x) (- (* y 1))))
  (* 0.5 (fma (- y) 1 (* y 1)))
  (* 0.5 (fma (* (* (cbrt x) (cbrt x)) (* (cbrt x) (cbrt x))) (* (cbrt x) (cbrt 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 (* (* (cbrt x) (cbrt x)) (* (cbrt x) (cbrt x))) (* (cbrt x) (cbrt x)) (- (* (sqrt y) (sqrt y)))))
  (* 0.5 (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))))
  (* 0.5 (fma (* (* (cbrt x) (cbrt x)) (* (cbrt x) (cbrt x))) (* (cbrt x) (cbrt x)) (- (* y 1))))
  (* 0.5 (fma (- y) 1 (* y 1)))
  (* 0.5 (fma (* (sqrt x) (sqrt x)) (* (sqrt x) (sqrt 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 (* (sqrt x) (sqrt x)) (* (sqrt x) (sqrt x)) (- (* (sqrt y) (sqrt y)))))
  (* 0.5 (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))))
  (* 0.5 (fma (* (sqrt x) (sqrt x)) (* (sqrt x) (sqrt x)) (- (* y 1))))
  (* 0.5 (fma (- y) 1 (* y 1)))
  (* 0.5 (fma (* 1 1) (* 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 (* 1 1) (* x x) (- (* (sqrt y) (sqrt y)))))
  (* 0.5 (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))))
  (* 0.5 (fma (* 1 1) (* x x) (- (* y 1))))
  (* 0.5 (fma (- y) 1 (* y 1)))
  (* 0.5 (fma (* (sqrt x) (sqrt x)) (* (sqrt x) (sqrt 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 (* (sqrt x) (sqrt x)) (* (sqrt x) (sqrt x)) (- (* (sqrt y) (sqrt y)))))
  (* 0.5 (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))))
  (* 0.5 (fma (* (sqrt x) (sqrt x)) (* (sqrt x) (sqrt x)) (- (* y 1))))
  (* 0.5 (fma (- y) 1 (* y 1)))
  (* 0.5 (fma (* x (* (cbrt x) (cbrt x))) (cbrt 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 (* (cbrt x) (cbrt x))) (cbrt x) (- (* (sqrt y) (sqrt y)))))
  (* 0.5 (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))))
  (* 0.5 (fma (* x (* (cbrt x) (cbrt x))) (cbrt x) (- (* y 1))))
  (* 0.5 (fma (- y) 1 (* y 1)))
  (* 0.5 (fma (* x (sqrt x)) (sqrt 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 (sqrt x)) (sqrt x) (- (* (sqrt y) (sqrt y)))))
  (* 0.5 (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))))
  (* 0.5 (fma (* x (sqrt x)) (sqrt x) (- (* y 1))))
  (* 0.5 (fma (- y) 1 (* y 1)))
  (* 0.5 (fma (* x 1) 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 1) x (- (* (sqrt y) (sqrt y)))))
  (* 0.5 (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))))
  (* 0.5 (fma (* x 1) x (- (* y 1))))
  (* 0.5 (fma (- y) 1 (* y 1)))
  (* 0.5 (fma (* (cbrt x) (cbrt x)) (* (cbrt 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 (* (cbrt x) (cbrt x)) (* (cbrt x) x) (- (* (sqrt y) (sqrt y)))))
  (* 0.5 (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))))
  (* 0.5 (fma (* (cbrt x) (cbrt x)) (* (cbrt x) x) (- (* y 1))))
  (* 0.5 (fma (- y) 1 (* y 1)))
  (* 0.5 (fma (sqrt x) (* (sqrt 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 (sqrt x) (* (sqrt x) x) (- (* (sqrt y) (sqrt y)))))
  (* 0.5 (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))))
  (* 0.5 (fma (sqrt x) (* (sqrt x) x) (- (* y 1))))
  (* 0.5 (fma (- y) 1 (* y 1)))
  (* 0.5 (fma 1 (* 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 1 (* x x) (- (* (sqrt y) (sqrt y)))))
  (* 0.5 (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))))
  (* 0.5 (fma 1 (* x x) (- (* y 1))))
  (* 0.5 (fma (- y) 1 (* y 1)))
  (* 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)
  (* (fma (* (cbrt (* x x)) (cbrt (* x x))) (cbrt (* 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 (* (cbrt (* x x)) (cbrt (* x x))) (cbrt (* x x)) (- (* (sqrt y) (sqrt y)))) 0.5)
  (* (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))) 0.5)
  (* (fma (* (cbrt (* x x)) (cbrt (* x x))) (cbrt (* x x)) (- (* y 1))) 0.5)
  (* (fma (- y) 1 (* y 1)) 0.5)
  (* (fma (sqrt (* x x)) (sqrt (* 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 (sqrt (* x x)) (sqrt (* x x)) (- (* (sqrt y) (sqrt y)))) 0.5)
  (* (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))) 0.5)
  (* (fma (sqrt (* x x)) (sqrt (* x x)) (- (* y 1))) 0.5)
  (* (fma (- y) 1 (* y 1)) 0.5)
  (* (fma 1 (* 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 1 (* x x) (- (* (sqrt y) (sqrt y)))) 0.5)
  (* (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))) 0.5)
  (* (fma 1 (* x x) (- (* y 1))) 0.5)
  (* (fma (- y) 1 (* y 1)) 0.5)
  (* (fma (* (* (cbrt x) (cbrt x)) (* (cbrt x) (cbrt x))) (* (cbrt x) (cbrt 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 (* (* (cbrt x) (cbrt x)) (* (cbrt x) (cbrt x))) (* (cbrt x) (cbrt x)) (- (* (sqrt y) (sqrt y)))) 0.5)
  (* (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))) 0.5)
  (* (fma (* (* (cbrt x) (cbrt x)) (* (cbrt x) (cbrt x))) (* (cbrt x) (cbrt x)) (- (* y 1))) 0.5)
  (* (fma (- y) 1 (* y 1)) 0.5)
  (* (fma (* (sqrt x) (sqrt x)) (* (sqrt x) (sqrt 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 (* (sqrt x) (sqrt x)) (* (sqrt x) (sqrt x)) (- (* (sqrt y) (sqrt y)))) 0.5)
  (* (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))) 0.5)
  (* (fma (* (sqrt x) (sqrt x)) (* (sqrt x) (sqrt x)) (- (* y 1))) 0.5)
  (* (fma (- y) 1 (* y 1)) 0.5)
  (* (fma (* 1 1) (* 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 (* 1 1) (* x x) (- (* (sqrt y) (sqrt y)))) 0.5)
  (* (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))) 0.5)
  (* (fma (* 1 1) (* x x) (- (* y 1))) 0.5)
  (* (fma (- y) 1 (* y 1)) 0.5)
  (* (fma (* (sqrt x) (sqrt x)) (* (sqrt x) (sqrt 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 (* (sqrt x) (sqrt x)) (* (sqrt x) (sqrt x)) (- (* (sqrt y) (sqrt y)))) 0.5)
  (* (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))) 0.5)
  (* (fma (* (sqrt x) (sqrt x)) (* (sqrt x) (sqrt x)) (- (* y 1))) 0.5)
  (* (fma (- y) 1 (* y 1)) 0.5)
  (* (fma (* x (* (cbrt x) (cbrt x))) (cbrt 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 (* (cbrt x) (cbrt x))) (cbrt x) (- (* (sqrt y) (sqrt y)))) 0.5)
  (* (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))) 0.5)
  (* (fma (* x (* (cbrt x) (cbrt x))) (cbrt x) (- (* y 1))) 0.5)
  (* (fma (- y) 1 (* y 1)) 0.5)
  (* (fma (* x (sqrt x)) (sqrt 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 (sqrt x)) (sqrt x) (- (* (sqrt y) (sqrt y)))) 0.5)
  (* (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))) 0.5)
  (* (fma (* x (sqrt x)) (sqrt x) (- (* y 1))) 0.5)
  (* (fma (- y) 1 (* y 1)) 0.5)
  (* (fma (* x 1) 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 1) x (- (* (sqrt y) (sqrt y)))) 0.5)
  (* (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))) 0.5)
  (* (fma (* x 1) x (- (* y 1))) 0.5)
  (* (fma (- y) 1 (* y 1)) 0.5)
  (* (fma (* (cbrt x) (cbrt x)) (* (cbrt 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 (* (cbrt x) (cbrt x)) (* (cbrt x) x) (- (* (sqrt y) (sqrt y)))) 0.5)
  (* (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))) 0.5)
  (* (fma (* (cbrt x) (cbrt x)) (* (cbrt x) x) (- (* y 1))) 0.5)
  (* (fma (- y) 1 (* y 1)) 0.5)
  (* (fma (sqrt x) (* (sqrt 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 (sqrt x) (* (sqrt x) x) (- (* (sqrt y) (sqrt y)))) 0.5)
  (* (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))) 0.5)
  (* (fma (sqrt x) (* (sqrt x) x) (- (* y 1))) 0.5)
  (* (fma (- y) 1 (* y 1)) 0.5)
  (* (fma 1 (* 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 1 (* x x) (- (* (sqrt y) (sqrt y)))) 0.5)
  (* (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))) 0.5)
  (* (fma 1 (* x x) (- (* y 1))) 0.5)
  (* (fma (- y) 1 (* y 1)) 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) 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)))
  (* 0.5 (+ (sqrt (* x x)) (sqrt y)))
  (* 0.5 (+ (* (sqrt x) (sqrt x)) (sqrt y)))
  (* 0.5 (+ (* (sqrt x) (sqrt x)) (sqrt y)))
  (* 0.5 (+ x (sqrt y)))
  (* 0.5 1)
  (* 0.5 1)
  (* (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))
  (fma (* (cbrt (* x x)) (cbrt (* x x))) (cbrt (* x x)) (- (* (cbrt y) (* (cbrt y) (cbrt y)))))
  (fma (- (cbrt y)) (* (cbrt y) (cbrt y)) (* (cbrt y) (* (cbrt y) (cbrt y))))
  (fma (* (cbrt (* x x)) (cbrt (* x x))) (cbrt (* x x)) (- (* (sqrt y) (sqrt y))))
  (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y)))
  (fma (* (cbrt (* x x)) (cbrt (* x x))) (cbrt (* x x)) (- (* y 1)))
  (fma (- y) 1 (* y 1))
  (fma (sqrt (* x x)) (sqrt (* x x)) (- (* (cbrt y) (* (cbrt y) (cbrt y)))))
  (fma (- (cbrt y)) (* (cbrt y) (cbrt y)) (* (cbrt y) (* (cbrt y) (cbrt y))))
  (fma (sqrt (* x x)) (sqrt (* x x)) (- (* (sqrt y) (sqrt y))))
  (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y)))
  (fma (sqrt (* x x)) (sqrt (* x x)) (- (* y 1)))
  (fma (- y) 1 (* y 1))
  (fma 1 (* x x) (- (* (cbrt y) (* (cbrt y) (cbrt y)))))
  (fma (- (cbrt y)) (* (cbrt y) (cbrt y)) (* (cbrt y) (* (cbrt y) (cbrt y))))
  (fma 1 (* x x) (- (* (sqrt y) (sqrt y))))
  (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y)))
  (fma 1 (* x x) (- (* y 1)))
  (fma (- y) 1 (* y 1))
  (fma (* (* (cbrt x) (cbrt x)) (* (cbrt x) (cbrt x))) (* (cbrt x) (cbrt x)) (- (* (cbrt y) (* (cbrt y) (cbrt y)))))
  (fma (- (cbrt y)) (* (cbrt y) (cbrt y)) (* (cbrt y) (* (cbrt y) (cbrt y))))
  (fma (* (* (cbrt x) (cbrt x)) (* (cbrt x) (cbrt x))) (* (cbrt x) (cbrt x)) (- (* (sqrt y) (sqrt y))))
  (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y)))
  (fma (* (* (cbrt x) (cbrt x)) (* (cbrt x) (cbrt x))) (* (cbrt x) (cbrt x)) (- (* y 1)))
  (fma (- y) 1 (* y 1))
  (fma (* (sqrt x) (sqrt x)) (* (sqrt x) (sqrt x)) (- (* (cbrt y) (* (cbrt y) (cbrt y)))))
  (fma (- (cbrt y)) (* (cbrt y) (cbrt y)) (* (cbrt y) (* (cbrt y) (cbrt y))))
  (fma (* (sqrt x) (sqrt x)) (* (sqrt x) (sqrt x)) (- (* (sqrt y) (sqrt y))))
  (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y)))
  (fma (* (sqrt x) (sqrt x)) (* (sqrt x) (sqrt x)) (- (* y 1)))
  (fma (- y) 1 (* y 1))
  (fma (* 1 1) (* x x) (- (* (cbrt y) (* (cbrt y) (cbrt y)))))
  (fma (- (cbrt y)) (* (cbrt y) (cbrt y)) (* (cbrt y) (* (cbrt y) (cbrt y))))
  (fma (* 1 1) (* x x) (- (* (sqrt y) (sqrt y))))
  (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y)))
  (fma (* 1 1) (* x x) (- (* y 1)))
  (fma (- y) 1 (* y 1))
  (fma (* (sqrt x) (sqrt x)) (* (sqrt x) (sqrt x)) (- (* (cbrt y) (* (cbrt y) (cbrt y)))))
  (fma (- (cbrt y)) (* (cbrt y) (cbrt y)) (* (cbrt y) (* (cbrt y) (cbrt y))))
  (fma (* (sqrt x) (sqrt x)) (* (sqrt x) (sqrt x)) (- (* (sqrt y) (sqrt y))))
  (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y)))
  (fma (* (sqrt x) (sqrt x)) (* (sqrt x) (sqrt x)) (- (* y 1)))
  (fma (- y) 1 (* y 1))
  (fma (* x (* (cbrt x) (cbrt x))) (cbrt x) (- (* (cbrt y) (* (cbrt y) (cbrt y)))))
  (fma (- (cbrt y)) (* (cbrt y) (cbrt y)) (* (cbrt y) (* (cbrt y) (cbrt y))))
  (fma (* x (* (cbrt x) (cbrt x))) (cbrt x) (- (* (sqrt y) (sqrt y))))
  (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y)))
  (fma (* x (* (cbrt x) (cbrt x))) (cbrt x) (- (* y 1)))
  (fma (- y) 1 (* y 1))
  (fma (* x (sqrt x)) (sqrt x) (- (* (cbrt y) (* (cbrt y) (cbrt y)))))
  (fma (- (cbrt y)) (* (cbrt y) (cbrt y)) (* (cbrt y) (* (cbrt y) (cbrt y))))
  (fma (* x (sqrt x)) (sqrt x) (- (* (sqrt y) (sqrt y))))
  (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y)))
  (fma (* x (sqrt x)) (sqrt x) (- (* y 1)))
  (fma (- y) 1 (* y 1))
  (fma (* x 1) x (- (* (cbrt y) (* (cbrt y) (cbrt y)))))
  (fma (- (cbrt y)) (* (cbrt y) (cbrt y)) (* (cbrt y) (* (cbrt y) (cbrt y))))
  (fma (* x 1) x (- (* (sqrt y) (sqrt y))))
  (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y)))
  (fma (* x 1) x (- (* y 1)))
  (fma (- y) 1 (* y 1))
  (fma (* (cbrt x) (cbrt x)) (* (cbrt x) x) (- (* (cbrt y) (* (cbrt y) (cbrt y)))))
  (fma (- (cbrt y)) (* (cbrt y) (cbrt y)) (* (cbrt y) (* (cbrt y) (cbrt y))))
  (fma (* (cbrt x) (cbrt x)) (* (cbrt x) x) (- (* (sqrt y) (sqrt y))))
  (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y)))
  (fma (* (cbrt x) (cbrt x)) (* (cbrt x) x) (- (* y 1)))
  (fma (- y) 1 (* y 1))
  (fma (sqrt x) (* (sqrt x) x) (- (* (cbrt y) (* (cbrt y) (cbrt y)))))
  (fma (- (cbrt y)) (* (cbrt y) (cbrt y)) (* (cbrt y) (* (cbrt y) (cbrt y))))
  (fma (sqrt x) (* (sqrt x) x) (- (* (sqrt y) (sqrt y))))
  (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y)))
  (fma (sqrt x) (* (sqrt x) x) (- (* y 1)))
  (fma (- y) 1 (* y 1))
  (fma 1 (* x x) (- (* (cbrt y) (* (cbrt y) (cbrt y)))))
  (fma (- (cbrt y)) (* (cbrt y) (cbrt y)) (* (cbrt y) (* (cbrt y) (cbrt y))))
  (fma 1 (* x x) (- (* (sqrt y) (sqrt y))))
  (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y)))
  (fma 1 (* x x) (- (* y 1)))
  (fma (- y) 1 (* y 1))
  (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)
  (- y)
  (- y)
  (- y)
  (- y)
  (- y)
  (- y)
  (- y)
  (- y)
  (- y)
  (- y)
  (- y)
  (- y)
  (- 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))
  (+ (sqrt (* x x)) (sqrt y))
  (- (sqrt (* x x)) (sqrt y))
  (+ (* (sqrt x) (sqrt x)) (sqrt y))
  (- (* (sqrt x) (sqrt x)) (sqrt y))
  (+ (* (sqrt x) (sqrt x)) (sqrt y))
  (- (* (sqrt x) (sqrt x)) (sqrt y))
  (+ x (sqrt y))
  (- x (sqrt y))
  (- (* x x) y)
  (- (* x x) 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)
0.418 * * [simplify]: iteration  0 :  393  enodes  (cost  2114 )
0.425 * * [simplify]: iteration  1 :  1429  enodes  (cost  1185 )
0.452 * * [simplify]: iteration  2 :  5001  enodes  (cost  992 )
0.458 * [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 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* (* (+ (* 1 (pow (cbrt (* x x)) 3)) (- y)) 1) 0.5)
  (* 0.5 (fma (- y) 1 y))
  (* (* (+ (* 1 (pow (cbrt (* x x)) 3)) (- y)) 1) 0.5)
  (* 0.5 (fma (- y) 1 y))
  (* (* (+ (* 1 (pow (cbrt (* x x)) 3)) (- y)) 1) 0.5)
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (* x x))
  (* 0.5 (- y))
  (* 0.5 (* x x))
  (* 0.5 (- y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* (* (+ (* 1 (pow (cbrt (* x x)) 3)) (- y)) 1) 0.5)
  (* 0.5 (fma (- y) 1 y))
  (* (* (+ (* 1 (pow (cbrt (* x x)) 3)) (- y)) 1) 0.5)
  (* 0.5 (fma (- y) 1 y))
  (* (* (+ (* 1 (pow (cbrt (* x x)) 3)) (- y)) 1) 0.5)
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (fma (- y) 1 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
  (* (+ (sqrt y) x) 0.5)
  (* (+ (sqrt y) (fabs x)) 0.5)
  (* (+ (sqrt y) x) 0.5)
  (* (+ (sqrt y) x) 0.5)
  (* (+ (sqrt y) x) 0.5)
  0.5
  0.5
  (* (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)))
  (* (* (fma x x y) (- (* x x) y)) 0.5)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (+ (* 1 (pow (cbrt (* x x)) 3)) (- y))
  (fma (- y) 1 y)
  (+ (* 1 (pow (cbrt (* x x)) 3)) (- y))
  (fma (- y) 1 y)
  (+ (* 1 (pow (cbrt (* x x)) 3)) (- y))
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (- (* x x) y)
  (fma (- y) 1 y)
  (expm1 (- (* x x) y))
  (log1p (- (* x x) y))
  (- y)
  (- y)
  (- y)
  (- y)
  (- y)
  (- y)
  (- y)
  (- y)
  (- y)
  (- y)
  (- y)
  (- y)
  (- y)
  (- 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)
  (+ (sqrt y) x)
  (- x (sqrt y))
  (+ (sqrt y) (fabs x))
  (- (fabs x) (sqrt y))
  (+ (sqrt y) x)
  (- x (sqrt y))
  (+ (sqrt y) x)
  (- x (sqrt y))
  (+ (sqrt y) x)
  (- x (sqrt y))
  (- (* x x) y)
  (- (* x x) 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)
0.459 * * * [progress]: adding candidates to table
0.590 * * [progress]: iteration 2 / 4
0.590 * * * [progress]: picking best candidate
0.593 * * * * [pick]: Picked  #<alt (λ (x y) (* 0.5 (fma (* x 1) x (- y))))>
0.593 * * * [progress]: localizing error
0.600 * * * [progress]: generating rewritten candidates
0.600 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.604 * * * [progress]: generating series expansions
0.604 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.604 * [approximate]: Taking taylor expansion of (* 0.5 (fma x x (- y))) in (x y) around 0
0.605 * [taylor]: Taking taylor expansion of (* 0.5 (fma x x (- y))) in y
0.605 * [taylor]: Taking taylor expansion of 0.5 in y
0.605 * [taylor]: Taking taylor expansion of (fma x x (- y)) in y
0.606 * [taylor]: Rewrote expression to (+ (* x x) (- y))
0.606 * [taylor]: Taking taylor expansion of (* x x) in y
0.606 * [taylor]: Taking taylor expansion of x in y
0.606 * [taylor]: Taking taylor expansion of x in y
0.606 * [taylor]: Taking taylor expansion of (- y) in y
0.606 * [taylor]: Taking taylor expansion of y in y
0.606 * [taylor]: Taking taylor expansion of (* 0.5 (fma x x (- y))) in x
0.606 * [taylor]: Taking taylor expansion of 0.5 in x
0.606 * [taylor]: Taking taylor expansion of (fma x x (- y)) in x
0.606 * [taylor]: Rewrote expression to (+ (* x x) (- y))
0.606 * [taylor]: Taking taylor expansion of (* x x) in x
0.606 * [taylor]: Taking taylor expansion of x in x
0.606 * [taylor]: Taking taylor expansion of x in x
0.607 * [taylor]: Taking taylor expansion of (- y) in x
0.607 * [taylor]: Taking taylor expansion of y in x
0.607 * [taylor]: Taking taylor expansion of (* 0.5 (fma x x (- y))) in x
0.607 * [taylor]: Taking taylor expansion of 0.5 in x
0.607 * [taylor]: Taking taylor expansion of (fma x x (- y)) in x
0.607 * [taylor]: Rewrote expression to (+ (* x x) (- y))
0.607 * [taylor]: Taking taylor expansion of (* x x) in x
0.607 * [taylor]: Taking taylor expansion of x in x
0.607 * [taylor]: Taking taylor expansion of x in x
0.607 * [taylor]: Taking taylor expansion of (- y) in x
0.607 * [taylor]: Taking taylor expansion of y in x
0.607 * [taylor]: Taking taylor expansion of (* -0.5 y) in y
0.607 * [taylor]: Taking taylor expansion of -0.5 in y
0.607 * [taylor]: Taking taylor expansion of y in y
0.609 * [taylor]: Taking taylor expansion of 0 in y
0.611 * [taylor]: Taking taylor expansion of 0.5 in y
0.614 * [taylor]: Taking taylor expansion of 0 in y
0.615 * [approximate]: Taking taylor expansion of (* 0.5 (fma (/ 1 x) (/ 1 x) (- (/ 1 y)))) in (x y) around 0
0.615 * [taylor]: Taking taylor expansion of (* 0.5 (fma (/ 1 x) (/ 1 x) (- (/ 1 y)))) in y
0.615 * [taylor]: Taking taylor expansion of 0.5 in y
0.615 * [taylor]: Taking taylor expansion of (fma (/ 1 x) (/ 1 x) (- (/ 1 y))) in y
0.615 * [taylor]: Rewrote expression to (+ (* (/ 1 x) (/ 1 x)) (- (/ 1 y)))
0.615 * [taylor]: Taking taylor expansion of (* (/ 1 x) (/ 1 x)) in y
0.615 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.615 * [taylor]: Taking taylor expansion of x in y
0.615 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.615 * [taylor]: Taking taylor expansion of x in y
0.615 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in y
0.615 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.615 * [taylor]: Taking taylor expansion of y in y
0.616 * [taylor]: Taking taylor expansion of (* 0.5 (fma (/ 1 x) (/ 1 x) (- (/ 1 y)))) in x
0.616 * [taylor]: Taking taylor expansion of 0.5 in x
0.616 * [taylor]: Taking taylor expansion of (fma (/ 1 x) (/ 1 x) (- (/ 1 y))) in x
0.616 * [taylor]: Rewrote expression to (+ (* (/ 1 x) (/ 1 x)) (- (/ 1 y)))
0.616 * [taylor]: Taking taylor expansion of (* (/ 1 x) (/ 1 x)) in x
0.616 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.616 * [taylor]: Taking taylor expansion of x in x
0.616 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.616 * [taylor]: Taking taylor expansion of x in x
0.616 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in x
0.616 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.616 * [taylor]: Taking taylor expansion of y in x
0.616 * [taylor]: Taking taylor expansion of (* 0.5 (fma (/ 1 x) (/ 1 x) (- (/ 1 y)))) in x
0.616 * [taylor]: Taking taylor expansion of 0.5 in x
0.616 * [taylor]: Taking taylor expansion of (fma (/ 1 x) (/ 1 x) (- (/ 1 y))) in x
0.617 * [taylor]: Rewrote expression to (+ (* (/ 1 x) (/ 1 x)) (- (/ 1 y)))
0.617 * [taylor]: Taking taylor expansion of (* (/ 1 x) (/ 1 x)) in x
0.617 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.617 * [taylor]: Taking taylor expansion of x in x
0.617 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.617 * [taylor]: Taking taylor expansion of x in x
0.617 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in x
0.617 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.617 * [taylor]: Taking taylor expansion of y in x
0.618 * [taylor]: Taking taylor expansion of 0.5 in y
0.620 * [taylor]: Taking taylor expansion of 0 in y
0.622 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 y))) in y
0.622 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.622 * [taylor]: Taking taylor expansion of 0.5 in y
0.622 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.622 * [taylor]: Taking taylor expansion of y in y
0.629 * [taylor]: Taking taylor expansion of 0 in y
0.633 * [taylor]: Taking taylor expansion of 0 in y
0.634 * [approximate]: Taking taylor expansion of (* 0.5 (fma (/ -1 x) (/ -1 x) (/ 1 y))) in (x y) around 0
0.634 * [taylor]: Taking taylor expansion of (* 0.5 (fma (/ -1 x) (/ -1 x) (/ 1 y))) in y
0.634 * [taylor]: Taking taylor expansion of 0.5 in y
0.634 * [taylor]: Taking taylor expansion of (fma (/ -1 x) (/ -1 x) (/ 1 y)) in y
0.634 * [taylor]: Rewrote expression to (+ (* (/ -1 x) (/ -1 x)) (/ 1 y))
0.634 * [taylor]: Taking taylor expansion of (* (/ -1 x) (/ -1 x)) in y
0.634 * [taylor]: Taking taylor expansion of (/ -1 x) in y
0.634 * [taylor]: Taking taylor expansion of -1 in y
0.634 * [taylor]: Taking taylor expansion of x in y
0.634 * [taylor]: Taking taylor expansion of (/ -1 x) in y
0.634 * [taylor]: Taking taylor expansion of -1 in y
0.634 * [taylor]: Taking taylor expansion of x in y
0.634 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.634 * [taylor]: Taking taylor expansion of y in y
0.635 * [taylor]: Taking taylor expansion of (* 0.5 (fma (/ -1 x) (/ -1 x) (/ 1 y))) in x
0.635 * [taylor]: Taking taylor expansion of 0.5 in x
0.635 * [taylor]: Taking taylor expansion of (fma (/ -1 x) (/ -1 x) (/ 1 y)) in x
0.635 * [taylor]: Rewrote expression to (+ (* (/ -1 x) (/ -1 x)) (/ 1 y))
0.635 * [taylor]: Taking taylor expansion of (* (/ -1 x) (/ -1 x)) in x
0.635 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.635 * [taylor]: Taking taylor expansion of -1 in x
0.635 * [taylor]: Taking taylor expansion of x in x
0.635 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.635 * [taylor]: Taking taylor expansion of -1 in x
0.635 * [taylor]: Taking taylor expansion of x in x
0.635 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.635 * [taylor]: Taking taylor expansion of y in x
0.635 * [taylor]: Taking taylor expansion of (* 0.5 (fma (/ -1 x) (/ -1 x) (/ 1 y))) in x
0.636 * [taylor]: Taking taylor expansion of 0.5 in x
0.636 * [taylor]: Taking taylor expansion of (fma (/ -1 x) (/ -1 x) (/ 1 y)) in x
0.636 * [taylor]: Rewrote expression to (+ (* (/ -1 x) (/ -1 x)) (/ 1 y))
0.636 * [taylor]: Taking taylor expansion of (* (/ -1 x) (/ -1 x)) in x
0.636 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.636 * [taylor]: Taking taylor expansion of -1 in x
0.636 * [taylor]: Taking taylor expansion of x in x
0.636 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.636 * [taylor]: Taking taylor expansion of -1 in x
0.636 * [taylor]: Taking taylor expansion of x in x
0.636 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.636 * [taylor]: Taking taylor expansion of y in x
0.637 * [taylor]: Taking taylor expansion of 0.5 in y
0.639 * [taylor]: Taking taylor expansion of 0 in y
0.641 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.641 * [taylor]: Taking taylor expansion of 0.5 in y
0.641 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.641 * [taylor]: Taking taylor expansion of y in y
0.644 * [taylor]: Taking taylor expansion of 0 in y
0.648 * [taylor]: Taking taylor expansion of 0 in y
0.649 * * * [progress]: simplifying candidates
0.649 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (expm1 (* 0.5 (fma (* x 1) x (- y))))
  (log1p (* 0.5 (fma (* x 1) x (- y))))
  (* 0.5 (fma (* x 1) x (- y)))
  (+ (log 0.5) (log (fma (* x 1) x (- y))))
  (log (* 0.5 (fma (* x 1) x (- y))))
  (exp (* 0.5 (fma (* x 1) x (- y))))
  (* (* (* 0.5 0.5) 0.5) (* (* (fma (* x 1) x (- y)) (fma (* x 1) x (- y))) (fma (* x 1) x (- y))))
  (* (cbrt (* 0.5 (fma (* x 1) x (- y)))) (cbrt (* 0.5 (fma (* x 1) x (- y)))))
  (cbrt (* 0.5 (fma (* x 1) x (- y))))
  (* (* (* 0.5 (fma (* x 1) x (- y))) (* 0.5 (fma (* x 1) x (- y)))) (* 0.5 (fma (* x 1) x (- y))))
  (sqrt (* 0.5 (fma (* x 1) x (- y))))
  (sqrt (* 0.5 (fma (* x 1) x (- y))))
  (* (sqrt 0.5) (sqrt (fma (* x 1) x (- y))))
  (* (sqrt 0.5) (sqrt (fma (* x 1) x (- y))))
  (* 0.5 (* (* x 1) x))
  (* 0.5 (- y))
  (* (* (* x 1) x) 0.5)
  (* (- y) 0.5)
  (* 0.5 (* (cbrt (fma (* x 1) x (- y))) (cbrt (fma (* x 1) x (- y)))))
  (* 0.5 (sqrt (fma (* x 1) x (- y))))
  (* 0.5 1)
  (* (cbrt 0.5) (fma (* x 1) x (- y)))
  (* (sqrt 0.5) (fma (* x 1) x (- y)))
  (* 0.5 (fma (* x 1) 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))
0.652 * * [simplify]: iteration  0 :  95  enodes  (cost  141 )
0.655 * * [simplify]: iteration  1 :  394  enodes  (cost  120 )
0.663 * * [simplify]: iteration  2 :  1716  enodes  (cost  116 )
0.694 * * [simplify]: iteration  3 :  5002  enodes  (cost  116 )
0.695 * [simplify]: Simplified to:
   (expm1 (* 0.5 (fma (* x 1) x (- y))))
  (log1p (* 0.5 (fma (* x 1) x (- y))))
  (* 0.5 (- (pow x 2) y))
  (log (* 0.5 (- (pow x 2) y)))
  (log (* 0.5 (- (pow x 2) y)))
  (pow (exp (fma x x (- y))) 0.5)
  (pow (* 0.5 (- (pow x 2) y)) 3)
  (* (cbrt (* 0.5 (fma (* x 1) x (- y)))) (cbrt (* 0.5 (fma (* x 1) x (- y)))))
  (cbrt (* 0.5 (fma (* x 1) x (- y))))
  (pow (* 0.5 (- (pow x 2) y)) 3)
  (sqrt (* 0.5 (fma (* x 1) x (- y))))
  (sqrt (* 0.5 (fma (* x 1) x (- y))))
  (* (sqrt 0.5) (sqrt (fma (* x 1) x (- y))))
  (* (sqrt 0.5) (sqrt (fma (* x 1) x (- y))))
  (* (* 0.5 x) x)
  (* 0.5 (- y))
  (* (* 0.5 x) x)
  (* 0.5 (- y))
  (* 0.5 (* (cbrt (fma (* x 1) x (- y))) (cbrt (fma (* x 1) x (- y)))))
  (* 0.5 (sqrt (fma (* x 1) x (- y))))
  0.5
  (* (cbrt 0.5) (fma (* x 1) x (- y)))
  (* (sqrt 0.5) (fma (* x 1) 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))
0.695 * * * [progress]: adding candidates to table
0.744 * * [progress]: iteration 3 / 4
0.744 * * * [progress]: picking best candidate
0.746 * * * * [pick]: Picked  #<alt (λ (x y) (+ (* (* 0.5 x) x) (* 0.5 (- y))))>
0.746 * * * [progress]: localizing error
0.752 * * * [progress]: generating rewritten candidates
0.752 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.784 * * * [progress]: generating series expansions
0.784 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.784 * [approximate]: Taking taylor expansion of (- (* 0.5 (pow x 2)) (* 0.5 y)) in (x y) around 0
0.784 * [taylor]: Taking taylor expansion of (- (* 0.5 (pow x 2)) (* 0.5 y)) in y
0.784 * [taylor]: Taking taylor expansion of (* 0.5 (pow x 2)) in y
0.784 * [taylor]: Taking taylor expansion of 0.5 in y
0.784 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.784 * [taylor]: Taking taylor expansion of x in y
0.784 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
0.784 * [taylor]: Taking taylor expansion of 0.5 in y
0.784 * [taylor]: Taking taylor expansion of y in y
0.784 * [taylor]: Taking taylor expansion of (- (* 0.5 (pow x 2)) (* 0.5 y)) in x
0.784 * [taylor]: Taking taylor expansion of (* 0.5 (pow x 2)) in x
0.784 * [taylor]: Taking taylor expansion of 0.5 in x
0.784 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.784 * [taylor]: Taking taylor expansion of x in x
0.784 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
0.784 * [taylor]: Taking taylor expansion of 0.5 in x
0.784 * [taylor]: Taking taylor expansion of y in x
0.784 * [taylor]: Taking taylor expansion of (- (* 0.5 (pow x 2)) (* 0.5 y)) in x
0.784 * [taylor]: Taking taylor expansion of (* 0.5 (pow x 2)) in x
0.784 * [taylor]: Taking taylor expansion of 0.5 in x
0.784 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.784 * [taylor]: Taking taylor expansion of x in x
0.784 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
0.784 * [taylor]: Taking taylor expansion of 0.5 in x
0.784 * [taylor]: Taking taylor expansion of y in x
0.784 * [taylor]: Taking taylor expansion of (- (* 0.5 y)) in y
0.784 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
0.784 * [taylor]: Taking taylor expansion of 0.5 in y
0.785 * [taylor]: Taking taylor expansion of y in y
0.786 * [taylor]: Taking taylor expansion of 0 in y
0.789 * [taylor]: Taking taylor expansion of 0.5 in y
0.791 * [taylor]: Taking taylor expansion of 0 in y
0.793 * [approximate]: Taking taylor expansion of (- (* 0.5 (/ 1 (pow x 2))) (* 0.5 (/ 1 y))) in (x y) around 0
0.793 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 (pow x 2))) (* 0.5 (/ 1 y))) in y
0.793 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 (pow x 2))) in y
0.793 * [taylor]: Taking taylor expansion of 0.5 in y
0.793 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.793 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.793 * [taylor]: Taking taylor expansion of x in y
0.793 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.793 * [taylor]: Taking taylor expansion of 0.5 in y
0.793 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.793 * [taylor]: Taking taylor expansion of y in y
0.793 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 (pow x 2))) (* 0.5 (/ 1 y))) in x
0.794 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 (pow x 2))) in x
0.794 * [taylor]: Taking taylor expansion of 0.5 in x
0.794 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.794 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.794 * [taylor]: Taking taylor expansion of x in x
0.794 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
0.794 * [taylor]: Taking taylor expansion of 0.5 in x
0.794 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.794 * [taylor]: Taking taylor expansion of y in x
0.794 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 (pow x 2))) (* 0.5 (/ 1 y))) in x
0.794 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 (pow x 2))) in x
0.794 * [taylor]: Taking taylor expansion of 0.5 in x
0.794 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.794 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.794 * [taylor]: Taking taylor expansion of x in x
0.795 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
0.795 * [taylor]: Taking taylor expansion of 0.5 in x
0.795 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.795 * [taylor]: Taking taylor expansion of y in x
0.798 * [taylor]: Taking taylor expansion of 0.5 in y
0.800 * [taylor]: Taking taylor expansion of 0 in y
0.801 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 y))) in y
0.801 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.801 * [taylor]: Taking taylor expansion of 0.5 in y
0.801 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.801 * [taylor]: Taking taylor expansion of y in y
0.805 * [taylor]: Taking taylor expansion of 0 in y
0.809 * [taylor]: Taking taylor expansion of 0 in y
0.810 * [approximate]: Taking taylor expansion of (+ (* 0.5 (/ 1 (pow x 2))) (* 0.5 (/ 1 y))) in (x y) around 0
0.810 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 (pow x 2))) (* 0.5 (/ 1 y))) in y
0.810 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 (pow x 2))) in y
0.810 * [taylor]: Taking taylor expansion of 0.5 in y
0.810 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.810 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.810 * [taylor]: Taking taylor expansion of x in y
0.810 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.810 * [taylor]: Taking taylor expansion of 0.5 in y
0.810 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.810 * [taylor]: Taking taylor expansion of y in y
0.810 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 (pow x 2))) (* 0.5 (/ 1 y))) in x
0.810 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 (pow x 2))) in x
0.810 * [taylor]: Taking taylor expansion of 0.5 in x
0.810 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.810 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.811 * [taylor]: Taking taylor expansion of x in x
0.811 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
0.811 * [taylor]: Taking taylor expansion of 0.5 in x
0.811 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.811 * [taylor]: Taking taylor expansion of y in x
0.811 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 (pow x 2))) (* 0.5 (/ 1 y))) in x
0.811 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 (pow x 2))) in x
0.811 * [taylor]: Taking taylor expansion of 0.5 in x
0.811 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.811 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.811 * [taylor]: Taking taylor expansion of x in x
0.812 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
0.812 * [taylor]: Taking taylor expansion of 0.5 in x
0.812 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.812 * [taylor]: Taking taylor expansion of y in x
0.812 * [taylor]: Taking taylor expansion of 0.5 in y
0.814 * [taylor]: Taking taylor expansion of 0 in y
0.816 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.816 * [taylor]: Taking taylor expansion of 0.5 in y
0.816 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.816 * [taylor]: Taking taylor expansion of y in y
0.819 * [taylor]: Taking taylor expansion of 0 in y
0.823 * [taylor]: Taking taylor expansion of 0 in y
0.823 * * * [progress]: simplifying candidates
0.824 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (expm1 (+ (* (* 0.5 x) x) (* 0.5 (- y))))
  (log1p (+ (* (* 0.5 x) x) (* 0.5 (- y))))
  (* (exp (* (* 0.5 x) x)) (exp (* 0.5 (- y))))
  (log (+ (* (* 0.5 x) x) (* 0.5 (- y))))
  (exp (+ (* (* 0.5 x) x) (* 0.5 (- y))))
  (* (cbrt (+ (* (* 0.5 x) x) (* 0.5 (- y)))) (cbrt (+ (* (* 0.5 x) x) (* 0.5 (- y)))))
  (cbrt (+ (* (* 0.5 x) x) (* 0.5 (- y))))
  (* (* (+ (* (* 0.5 x) x) (* 0.5 (- y))) (+ (* (* 0.5 x) x) (* 0.5 (- y)))) (+ (* (* 0.5 x) x) (* 0.5 (- y))))
  (sqrt (+ (* (* 0.5 x) x) (* 0.5 (- y))))
  (sqrt (+ (* (* 0.5 x) x) (* 0.5 (- y))))
  (+ (pow (* (* 0.5 x) x) 3) (pow (* 0.5 (- y)) 3))
  (+ (* (* (* 0.5 x) x) (* (* 0.5 x) x)) (- (* (* 0.5 (- y)) (* 0.5 (- y))) (* (* (* 0.5 x) x) (* 0.5 (- y)))))
  (- (* (* (* 0.5 x) x) (* (* 0.5 x) x)) (* (* 0.5 (- y)) (* 0.5 (- y))))
  (- (* (* 0.5 x) x) (* 0.5 (- y)))
  (+ (* (* 0.5 x) x) (* 0.5 (- y)))
  (+ (* (* 0.5 x) x) (* 0.5 (- y)))
  (+ (* x x) (- y))
  (+ (* (* 0.5 x) x) (* 0.5 (- y)))
  (+ (* (* 0.5 x) x) (* 0.5 (- y)))
  (+ (* x x) (- y))
  (+ (* x x) (- y))
  (+ (* (* (cbrt 0.5) x) x) (* (cbrt 0.5) (- y)))
  (+ (* (* (sqrt 0.5) x) x) (* (sqrt 0.5) (- y)))
  (+ (* (* 0.5 x) x) (* 0.5 (- y)))
  (+ (* (* 0.5 x) x) (* 0.5 (- 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))
0.827 * * [simplify]: iteration  0 :  150  enodes  (cost  158 )
0.831 * * [simplify]: iteration  1 :  625  enodes  (cost  133 )
0.847 * * [simplify]: iteration  2 :  3197  enodes  (cost  125 )
0.924 * * [simplify]: iteration  3 :  5001  enodes  (cost  123 )
0.926 * [simplify]: Simplified to:
   (expm1 (+ (* (* 0.5 x) x) (* 0.5 (- y))))
  (log1p (+ (* (* 0.5 x) x) (* 0.5 (- y))))
  (exp (* 0.5 (- (pow x 2) y)))
  (+ (log 0.5) (log (fma x x (- y))))
  (exp (* 0.5 (- (pow x 2) y)))
  (* (cbrt (+ (* (* 0.5 x) x) (* 0.5 (- y)))) (cbrt (+ (* (* 0.5 x) x) (* 0.5 (- y)))))
  (cbrt (+ (* (* 0.5 x) x) (* 0.5 (- y))))
  (pow (* 0.5 (- (pow x 2) y)) 3)
  (sqrt (+ (* (* 0.5 x) x) (* 0.5 (- y))))
  (sqrt (+ (* (* 0.5 x) x) (* 0.5 (- y))))
  (- (pow (* (* 0.5 x) x) 3) (pow (* 0.5 y) 3))
  (fma 0.5 (* (pow x 4) 0.5) (* (* 0.5 y) (fma 0.5 (pow x 2) (* 0.5 y))))
  (* (* 0.5 0.5) (- (pow x 4) (* y y)))
  (fma 0.5 (pow x 2) (* 0.5 y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (- (pow x 2) y))
  (fma x x (- y))
  (* 0.5 (- (pow x 2) y))
  (* 0.5 (- (pow x 2) y))
  (fma x x (- y))
  (fma x x (- y))
  (* (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))
  (* 0.5 (- (pow x 2) y))
0.928 * * * [progress]: adding candidates to table
1.019 * [progress]: [Phase 3 of 3] Extracting.
1.019 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (+ (* (* 0.5 x) x) (* 0.5 (- y))))> #<alt (λ (x y) (* 0.5 (fma (* x 1) x (- y))))>)
1.020 * * * [regime-changes]: Trying 2 branch expressions: (y x)
1.020 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) (+ (* (* 0.5 x) x) (* 0.5 (- y))))> #<alt (λ (x y) (* 0.5 (fma (* x 1) x (- y))))>)
1.032 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) (+ (* (* 0.5 x) x) (* 0.5 (- y))))> #<alt (λ (x y) (* 0.5 (fma (* x 1) x (- y))))>)
1.042 * * * [regime]: Found split indices: #<option (#s(si 0 255))>
1.043 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ (* (* 0.5 x) x) (* 0.5 (- y)))
1.043 * * [simplify]: iteration  0 :  14  enodes  (cost  5 )
1.044 * * [simplify]: iteration  1 :  18  enodes  (cost  5 )
1.044 * * [simplify]: iteration  2 :  19  enodes  (cost  5 )
1.044 * * [simplify]: iteration  3 :  19  enodes  (cost  5 )
1.044 * [simplify]: Simplified to:
   (+ (* (* 0.5 x) x) (* 0.5 (- y)))
1.468 * [regime-testing]: Baseline error score: 0.004875609451181397
1.469 * [regime-testing]: Oracle error score: 0.00012501562695336918
1.470 * [regime-testing]: End program error score: 0.004875609451181397