0.174 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.019 * * * [progress]: [2/2] Setting up program.
0.021 * [progress]: [Phase 2 of 3] Improving.
0.021 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (/ (* (- x y) (+ x y)) (+ (* x x) (* y y)))
0.022 * * [simplify]: iteration  0 :  9  enodes  (cost  15 )
0.023 * * [simplify]: iteration  1 :  22  enodes  (cost  15 )
0.026 * * [simplify]: iteration  2 :  47  enodes  (cost  15 )
0.033 * * [simplify]: iteration  3 :  86  enodes  (cost  15 )
0.049 * * [simplify]: iteration  4 :  166  enodes  (cost  15 )
0.075 * * [simplify]: iteration  5 :  296  enodes  (cost  15 )
0.129 * * [simplify]: iteration  6 :  532  enodes  (cost  15 )
0.241 * * [simplify]: iteration  7 :  934  enodes  (cost  15 )
0.675 * * [simplify]: iteration  8 :  3386  enodes  (cost  15 )
3.494 * * [simplify]: iteration  done :  5001  enodes  (cost  15 )
3.494 * [simplify]: Simplified to:
   (* (- x y) (/ (+ x y) (+ (* x x) (* y y))))
3.497 * * [progress]: iteration 1 / 4
3.497 * * * [progress]: picking best candidate
3.500 * * * * [pick]: Picked  #<alt (λ (x y) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))>
3.500 * * * [progress]: localizing error
3.509 * * * [progress]: generating rewritten candidates
3.509 * * * * [progress]: [ 1 / 3 ] rewriting at (2)
3.522 * * * * [progress]: [ 2 / 3 ] rewriting at (2 2)
3.524 * * * * [progress]: [ 3 / 3 ] rewriting at (2 1)
3.543 * * * [progress]: generating series expansions
3.543 * * * * [progress]: [ 1 / 3 ] generating series at (2)
3.543 * [approximate]: Taking taylor expansion of (/ (* (+ x y) (- x y)) (+ (pow x 2) (pow y 2))) in (x y) around 0
3.543 * [taylor]: Taking taylor expansion of (/ (* (+ x y) (- x y)) (+ (pow x 2) (pow y 2))) in y
3.543 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in y
3.543 * [taylor]: Taking taylor expansion of (+ x y) in y
3.543 * [taylor]: Taking taylor expansion of x in y
3.543 * [taylor]: Taking taylor expansion of y in y
3.543 * [taylor]: Taking taylor expansion of (- x y) in y
3.543 * [taylor]: Taking taylor expansion of x in y
3.543 * [taylor]: Taking taylor expansion of y in y
3.543 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in y
3.543 * [taylor]: Taking taylor expansion of (pow x 2) in y
3.543 * [taylor]: Taking taylor expansion of x in y
3.543 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.543 * [taylor]: Taking taylor expansion of y in y
3.544 * [taylor]: Taking taylor expansion of (/ (* (+ x y) (- x y)) (+ (pow x 2) (pow y 2))) in x
3.544 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
3.544 * [taylor]: Taking taylor expansion of (+ x y) in x
3.544 * [taylor]: Taking taylor expansion of x in x
3.544 * [taylor]: Taking taylor expansion of y in x
3.544 * [taylor]: Taking taylor expansion of (- x y) in x
3.544 * [taylor]: Taking taylor expansion of x in x
3.544 * [taylor]: Taking taylor expansion of y in x
3.544 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in x
3.544 * [taylor]: Taking taylor expansion of (pow x 2) in x
3.544 * [taylor]: Taking taylor expansion of x in x
3.544 * [taylor]: Taking taylor expansion of (pow y 2) in x
3.544 * [taylor]: Taking taylor expansion of y in x
3.545 * [taylor]: Taking taylor expansion of (/ (* (+ x y) (- x y)) (+ (pow x 2) (pow y 2))) in x
3.545 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
3.545 * [taylor]: Taking taylor expansion of (+ x y) in x
3.545 * [taylor]: Taking taylor expansion of x in x
3.545 * [taylor]: Taking taylor expansion of y in x
3.545 * [taylor]: Taking taylor expansion of (- x y) in x
3.545 * [taylor]: Taking taylor expansion of x in x
3.545 * [taylor]: Taking taylor expansion of y in x
3.545 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in x
3.545 * [taylor]: Taking taylor expansion of (pow x 2) in x
3.545 * [taylor]: Taking taylor expansion of x in x
3.545 * [taylor]: Taking taylor expansion of (pow y 2) in x
3.545 * [taylor]: Taking taylor expansion of y in x
3.545 * [taylor]: Taking taylor expansion of -1 in y
3.547 * [taylor]: Taking taylor expansion of 0 in y
3.549 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
3.549 * [taylor]: Taking taylor expansion of 2 in y
3.549 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
3.549 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.549 * [taylor]: Taking taylor expansion of y in y
3.557 * [taylor]: Taking taylor expansion of 0 in y
3.558 * [approximate]: Taking taylor expansion of (/ (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in (x y) around 0
3.558 * [taylor]: Taking taylor expansion of (/ (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in y
3.558 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in y
3.558 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
3.558 * [taylor]: Taking taylor expansion of (/ 1 x) in y
3.558 * [taylor]: Taking taylor expansion of x in y
3.558 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.558 * [taylor]: Taking taylor expansion of y in y
3.558 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
3.558 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.558 * [taylor]: Taking taylor expansion of y in y
3.559 * [taylor]: Taking taylor expansion of (/ 1 x) in y
3.559 * [taylor]: Taking taylor expansion of x in y
3.559 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
3.559 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
3.559 * [taylor]: Taking taylor expansion of (pow x 2) in y
3.559 * [taylor]: Taking taylor expansion of x in y
3.559 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
3.559 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.559 * [taylor]: Taking taylor expansion of y in y
3.561 * [taylor]: Taking taylor expansion of (/ (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
3.561 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in x
3.561 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
3.561 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.561 * [taylor]: Taking taylor expansion of x in x
3.561 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.561 * [taylor]: Taking taylor expansion of y in x
3.561 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
3.561 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.561 * [taylor]: Taking taylor expansion of y in x
3.561 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.561 * [taylor]: Taking taylor expansion of x in x
3.562 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
3.562 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
3.562 * [taylor]: Taking taylor expansion of (pow x 2) in x
3.562 * [taylor]: Taking taylor expansion of x in x
3.562 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
3.562 * [taylor]: Taking taylor expansion of (pow y 2) in x
3.562 * [taylor]: Taking taylor expansion of y in x
3.564 * [taylor]: Taking taylor expansion of (/ (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
3.564 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in x
3.564 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
3.564 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.564 * [taylor]: Taking taylor expansion of x in x
3.564 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.564 * [taylor]: Taking taylor expansion of y in x
3.564 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
3.564 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.564 * [taylor]: Taking taylor expansion of y in x
3.564 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.564 * [taylor]: Taking taylor expansion of x in x
3.564 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
3.564 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
3.564 * [taylor]: Taking taylor expansion of (pow x 2) in x
3.564 * [taylor]: Taking taylor expansion of x in x
3.565 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
3.565 * [taylor]: Taking taylor expansion of (pow y 2) in x
3.565 * [taylor]: Taking taylor expansion of y in x
3.566 * [taylor]: Taking taylor expansion of 1 in y
3.569 * [taylor]: Taking taylor expansion of 0 in y
3.573 * [taylor]: Taking taylor expansion of (- (* 2 (/ 1 (pow y 2)))) in y
3.573 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
3.573 * [taylor]: Taking taylor expansion of 2 in y
3.573 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
3.573 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.573 * [taylor]: Taking taylor expansion of y in y
3.581 * [taylor]: Taking taylor expansion of 0 in y
3.581 * [approximate]: Taking taylor expansion of (* -1 (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))))) in (x y) around 0
3.581 * [taylor]: Taking taylor expansion of (* -1 (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))))) in y
3.582 * [taylor]: Taking taylor expansion of -1 in y
3.582 * [taylor]: Taking taylor expansion of (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in y
3.582 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in y
3.582 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
3.582 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.582 * [taylor]: Taking taylor expansion of y in y
3.582 * [taylor]: Taking taylor expansion of (/ 1 x) in y
3.582 * [taylor]: Taking taylor expansion of x in y
3.582 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
3.582 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.582 * [taylor]: Taking taylor expansion of y in y
3.582 * [taylor]: Taking taylor expansion of (/ 1 x) in y
3.582 * [taylor]: Taking taylor expansion of x in y
3.582 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
3.582 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
3.582 * [taylor]: Taking taylor expansion of (pow x 2) in y
3.582 * [taylor]: Taking taylor expansion of x in y
3.582 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
3.583 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.583 * [taylor]: Taking taylor expansion of y in y
3.584 * [taylor]: Taking taylor expansion of (* -1 (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))))) in x
3.584 * [taylor]: Taking taylor expansion of -1 in x
3.584 * [taylor]: Taking taylor expansion of (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
3.584 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in x
3.584 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
3.584 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.584 * [taylor]: Taking taylor expansion of y in x
3.584 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.584 * [taylor]: Taking taylor expansion of x in x
3.585 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
3.585 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.585 * [taylor]: Taking taylor expansion of y in x
3.585 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.585 * [taylor]: Taking taylor expansion of x in x
3.585 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
3.585 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
3.585 * [taylor]: Taking taylor expansion of (pow x 2) in x
3.585 * [taylor]: Taking taylor expansion of x in x
3.585 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
3.586 * [taylor]: Taking taylor expansion of (pow y 2) in x
3.586 * [taylor]: Taking taylor expansion of y in x
3.587 * [taylor]: Taking taylor expansion of (* -1 (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))))) in x
3.587 * [taylor]: Taking taylor expansion of -1 in x
3.587 * [taylor]: Taking taylor expansion of (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
3.587 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in x
3.587 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
3.587 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.587 * [taylor]: Taking taylor expansion of y in x
3.587 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.587 * [taylor]: Taking taylor expansion of x in x
3.588 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
3.588 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.588 * [taylor]: Taking taylor expansion of y in x
3.588 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.588 * [taylor]: Taking taylor expansion of x in x
3.588 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
3.588 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
3.588 * [taylor]: Taking taylor expansion of (pow x 2) in x
3.588 * [taylor]: Taking taylor expansion of x in x
3.588 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
3.589 * [taylor]: Taking taylor expansion of (pow y 2) in x
3.589 * [taylor]: Taking taylor expansion of y in x
3.590 * [taylor]: Taking taylor expansion of 1 in y
3.593 * [taylor]: Taking taylor expansion of 0 in y
3.598 * [taylor]: Taking taylor expansion of (- (* 2 (/ 1 (pow y 2)))) in y
3.598 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
3.598 * [taylor]: Taking taylor expansion of 2 in y
3.598 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
3.598 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.598 * [taylor]: Taking taylor expansion of y in y
3.607 * [taylor]: Taking taylor expansion of 0 in y
3.607 * * * * [progress]: [ 2 / 3 ] generating series at (2 2)
3.607 * [approximate]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in (x y) around 0
3.607 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in y
3.607 * [taylor]: Taking taylor expansion of (pow x 2) in y
3.607 * [taylor]: Taking taylor expansion of x in y
3.607 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.607 * [taylor]: Taking taylor expansion of y in y
3.607 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in x
3.607 * [taylor]: Taking taylor expansion of (pow x 2) in x
3.607 * [taylor]: Taking taylor expansion of x in x
3.607 * [taylor]: Taking taylor expansion of (pow y 2) in x
3.607 * [taylor]: Taking taylor expansion of y in x
3.607 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in x
3.607 * [taylor]: Taking taylor expansion of (pow x 2) in x
3.607 * [taylor]: Taking taylor expansion of x in x
3.607 * [taylor]: Taking taylor expansion of (pow y 2) in x
3.607 * [taylor]: Taking taylor expansion of y in x
3.608 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.608 * [taylor]: Taking taylor expansion of y in y
3.608 * [taylor]: Taking taylor expansion of 0 in y
3.609 * [taylor]: Taking taylor expansion of 1 in y
3.610 * [taylor]: Taking taylor expansion of 0 in y
3.612 * [taylor]: Taking taylor expansion of 0 in y
3.612 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
3.612 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
3.612 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
3.612 * [taylor]: Taking taylor expansion of (pow x 2) in y
3.612 * [taylor]: Taking taylor expansion of x in y
3.612 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
3.613 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.613 * [taylor]: Taking taylor expansion of y in y
3.613 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
3.613 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
3.613 * [taylor]: Taking taylor expansion of (pow x 2) in x
3.613 * [taylor]: Taking taylor expansion of x in x
3.614 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
3.614 * [taylor]: Taking taylor expansion of (pow y 2) in x
3.614 * [taylor]: Taking taylor expansion of y in x
3.614 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
3.614 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
3.614 * [taylor]: Taking taylor expansion of (pow x 2) in x
3.614 * [taylor]: Taking taylor expansion of x in x
3.614 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
3.614 * [taylor]: Taking taylor expansion of (pow y 2) in x
3.614 * [taylor]: Taking taylor expansion of y in x
3.615 * [taylor]: Taking taylor expansion of 1 in y
3.616 * [taylor]: Taking taylor expansion of 0 in y
3.617 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
3.617 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.617 * [taylor]: Taking taylor expansion of y in y
3.619 * [taylor]: Taking taylor expansion of 0 in y
3.622 * [taylor]: Taking taylor expansion of 0 in y
3.623 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
3.623 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
3.623 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
3.623 * [taylor]: Taking taylor expansion of (pow x 2) in y
3.623 * [taylor]: Taking taylor expansion of x in y
3.623 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
3.623 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.623 * [taylor]: Taking taylor expansion of y in y
3.624 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
3.624 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
3.624 * [taylor]: Taking taylor expansion of (pow x 2) in x
3.624 * [taylor]: Taking taylor expansion of x in x
3.624 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
3.624 * [taylor]: Taking taylor expansion of (pow y 2) in x
3.624 * [taylor]: Taking taylor expansion of y in x
3.625 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
3.625 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
3.625 * [taylor]: Taking taylor expansion of (pow x 2) in x
3.625 * [taylor]: Taking taylor expansion of x in x
3.625 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
3.625 * [taylor]: Taking taylor expansion of (pow y 2) in x
3.625 * [taylor]: Taking taylor expansion of y in x
3.626 * [taylor]: Taking taylor expansion of 1 in y
3.627 * [taylor]: Taking taylor expansion of 0 in y
3.628 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
3.628 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.628 * [taylor]: Taking taylor expansion of y in y
3.630 * [taylor]: Taking taylor expansion of 0 in y
3.633 * [taylor]: Taking taylor expansion of 0 in y
3.634 * * * * [progress]: [ 3 / 3 ] generating series at (2 1)
3.634 * [approximate]: Taking taylor expansion of (* (+ x y) (- x y)) in (x y) around 0
3.634 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in y
3.634 * [taylor]: Taking taylor expansion of (+ x y) in y
3.634 * [taylor]: Taking taylor expansion of x in y
3.634 * [taylor]: Taking taylor expansion of y in y
3.635 * [taylor]: Taking taylor expansion of (- x y) in y
3.635 * [taylor]: Taking taylor expansion of x in y
3.635 * [taylor]: Taking taylor expansion of y in y
3.635 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
3.635 * [taylor]: Taking taylor expansion of (+ x y) in x
3.635 * [taylor]: Taking taylor expansion of x in x
3.635 * [taylor]: Taking taylor expansion of y in x
3.635 * [taylor]: Taking taylor expansion of (- x y) in x
3.635 * [taylor]: Taking taylor expansion of x in x
3.635 * [taylor]: Taking taylor expansion of y in x
3.635 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
3.635 * [taylor]: Taking taylor expansion of (+ x y) in x
3.635 * [taylor]: Taking taylor expansion of x in x
3.635 * [taylor]: Taking taylor expansion of y in x
3.635 * [taylor]: Taking taylor expansion of (- x y) in x
3.635 * [taylor]: Taking taylor expansion of x in x
3.635 * [taylor]: Taking taylor expansion of y in x
3.635 * [taylor]: Taking taylor expansion of (* -1 (pow y 2)) in y
3.635 * [taylor]: Taking taylor expansion of -1 in y
3.635 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.635 * [taylor]: Taking taylor expansion of y in y
3.636 * [taylor]: Taking taylor expansion of 0 in y
3.637 * [taylor]: Taking taylor expansion of 1 in y
3.639 * [taylor]: Taking taylor expansion of 0 in y
3.641 * [taylor]: Taking taylor expansion of 0 in y
3.641 * [approximate]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in (x y) around 0
3.641 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in y
3.641 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
3.641 * [taylor]: Taking taylor expansion of (/ 1 x) in y
3.641 * [taylor]: Taking taylor expansion of x in y
3.641 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.641 * [taylor]: Taking taylor expansion of y in y
3.642 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
3.642 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.642 * [taylor]: Taking taylor expansion of y in y
3.642 * [taylor]: Taking taylor expansion of (/ 1 x) in y
3.642 * [taylor]: Taking taylor expansion of x in y
3.642 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in x
3.642 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
3.642 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.642 * [taylor]: Taking taylor expansion of x in x
3.643 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.643 * [taylor]: Taking taylor expansion of y in x
3.643 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
3.643 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.643 * [taylor]: Taking taylor expansion of y in x
3.643 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.643 * [taylor]: Taking taylor expansion of x in x
3.645 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in x
3.645 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
3.645 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.645 * [taylor]: Taking taylor expansion of x in x
3.646 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.646 * [taylor]: Taking taylor expansion of y in x
3.646 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
3.646 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.646 * [taylor]: Taking taylor expansion of y in x
3.646 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.646 * [taylor]: Taking taylor expansion of x in x
3.647 * [taylor]: Taking taylor expansion of 1 in y
3.648 * [taylor]: Taking taylor expansion of 0 in y
3.650 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
3.650 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
3.650 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.650 * [taylor]: Taking taylor expansion of y in y
3.654 * [taylor]: Taking taylor expansion of 0 in y
3.657 * [taylor]: Taking taylor expansion of 0 in y
3.659 * [approximate]: Taking taylor expansion of (* -1 (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x)))) in (x y) around 0
3.659 * [taylor]: Taking taylor expansion of (* -1 (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x)))) in y
3.659 * [taylor]: Taking taylor expansion of -1 in y
3.659 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in y
3.659 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
3.659 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.659 * [taylor]: Taking taylor expansion of y in y
3.659 * [taylor]: Taking taylor expansion of (/ 1 x) in y
3.659 * [taylor]: Taking taylor expansion of x in y
3.659 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
3.660 * [taylor]: Taking taylor expansion of (/ 1 y) in y
3.660 * [taylor]: Taking taylor expansion of y in y
3.660 * [taylor]: Taking taylor expansion of (/ 1 x) in y
3.660 * [taylor]: Taking taylor expansion of x in y
3.660 * [taylor]: Taking taylor expansion of (* -1 (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x)))) in x
3.660 * [taylor]: Taking taylor expansion of -1 in x
3.660 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in x
3.660 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
3.660 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.660 * [taylor]: Taking taylor expansion of y in x
3.660 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.660 * [taylor]: Taking taylor expansion of x in x
3.660 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
3.660 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.660 * [taylor]: Taking taylor expansion of y in x
3.660 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.660 * [taylor]: Taking taylor expansion of x in x
3.661 * [taylor]: Taking taylor expansion of (* -1 (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x)))) in x
3.661 * [taylor]: Taking taylor expansion of -1 in x
3.661 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in x
3.661 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
3.661 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.661 * [taylor]: Taking taylor expansion of y in x
3.661 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.661 * [taylor]: Taking taylor expansion of x in x
3.661 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
3.661 * [taylor]: Taking taylor expansion of (/ 1 y) in x
3.661 * [taylor]: Taking taylor expansion of y in x
3.661 * [taylor]: Taking taylor expansion of (/ 1 x) in x
3.661 * [taylor]: Taking taylor expansion of x in x
3.663 * [taylor]: Taking taylor expansion of 1 in y
3.664 * [taylor]: Taking taylor expansion of 0 in y
3.667 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
3.667 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
3.667 * [taylor]: Taking taylor expansion of (pow y 2) in y
3.667 * [taylor]: Taking taylor expansion of y in y
3.671 * [taylor]: Taking taylor expansion of 0 in y
3.676 * [taylor]: Taking taylor expansion of 0 in y
3.678 * * * [progress]: simplifying candidates
3.679 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (+ (log (- x y)) (log (+ x y))) (log (+ (* x x) (* y y))))
  (- (log (* (- x y) (+ x y))) (log (+ (* x x) (* y y))))
  (log (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (exp (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (/ (* (* (* (- x y) (- x y)) (- x y)) (* (* (+ x y) (+ x y)) (+ x y))) (* (* (+ (* x x) (* y y)) (+ (* x x) (* y y))) (+ (* x x) (* y y))))
  (/ (* (* (* (- x y) (+ x y)) (* (- x y) (+ x y))) (* (- x y) (+ x y))) (* (* (+ (* x x) (* y y)) (+ (* x x) (* y y))) (+ (* x x) (* y y))))
  (* (cbrt (/ (* (- x y) (+ x y)) (+ (* x x) (* y y)))) (cbrt (/ (* (- x y) (+ x y)) (+ (* x x) (* y y)))))
  (cbrt (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (* (* (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y)))) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (sqrt (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (sqrt (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (- (* (- x y) (+ x y)))
  (- (+ (* x x) (* y y)))
  (/ (- x y) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (/ (+ x y) (cbrt (+ (* x x) (* y y))))
  (/ (- x y) (sqrt (+ (* x x) (* y y))))
  (/ (+ x y) (sqrt (+ (* x x) (* y y))))
  (/ (- x y) 1)
  (/ (+ x y) (+ (* x x) (* y y)))
  (/ 1 (+ (* x x) (* y y)))
  (/ (+ (* x x) (* y y)) (* (- x y) (+ x y)))
  (/ (* (- x y) (+ x y)) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (/ (* (- x y) (+ x y)) (sqrt (+ (* x x) (* y y))))
  (/ (* (- x y) (+ x y)) 1)
  (/ (+ (* x x) (* y y)) (+ x y))
  (/ (* (- x y) (+ x y)) (+ (pow (* x x) 3) (pow (* y y) 3)))
  (/ (* (- x y) (+ x y)) (- (* (* x x) (* x x)) (* (* y y) (* y y))))
  (* (+ (* x x) (* y y)) (* (+ (* x x) (+ (* y y) (* x y))) (+ (* x x) (- (* y y) (* x y)))))
  (* (+ (* x x) (* y y)) (* (+ (* x x) (+ (* y y) (* x y))) (- x y)))
  (* (+ (* x x) (* y y)) (* (+ x y) (+ (* x x) (- (* y y) (* x y)))))
  (* (+ (* x x) (* y y)) (* (+ x y) (- x y)))
  (* (+ (* x x) (* y y)) (+ (* x x) (- (* y y) (* x y))))
  (* (+ (* x x) (* y y)) (- x y))
  (* (+ (* x x) (* y y)) (+ (* x x) (+ (* y y) (* x y))))
  (* (+ (* x x) (* y y)) (+ x y))
  (* (exp (* x x)) (exp (* y y)))
  (log (+ (* x x) (* y y)))
  (exp (+ (* x x) (* y y)))
  (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y))))
  (cbrt (+ (* x x) (* y y)))
  (* (* (+ (* x x) (* y y)) (+ (* x x) (* y y))) (+ (* x x) (* y y)))
  (sqrt (+ (* x x) (* y y)))
  (sqrt (+ (* x x) (* y y)))
  (+ (pow (* x x) 3) (pow (* y y) 3))
  (+ (* (* x x) (* x x)) (- (* (* y y) (* y y)) (* (* x x) (* y y))))
  (- (* (* x x) (* x x)) (* (* y y) (* y y)))
  (- (* x x) (* y y))
  (* (- x y) (+ x y))
  (+ (log (- x y)) (log (+ x y)))
  (log (* (- x y) (+ x y)))
  (exp (* (- x y) (+ x y)))
  (* (* (* (- x y) (- x y)) (- x y)) (* (* (+ x y) (+ x y)) (+ x y)))
  (* (cbrt (* (- x y) (+ x y))) (cbrt (* (- x y) (+ x y))))
  (cbrt (* (- x y) (+ x y)))
  (* (* (* (- x y) (+ x y)) (* (- x y) (+ x y))) (* (- x y) (+ x y)))
  (sqrt (* (- x y) (+ x y)))
  (sqrt (* (- x y) (+ x y)))
  (* (- (pow x 3) (pow y 3)) (+ (pow x 3) (pow y 3)))
  (* (+ (* x x) (+ (* y y) (* x y))) (+ (* x x) (- (* y y) (* x y))))
  (* (- (pow x 3) (pow y 3)) (- (* x x) (* y y)))
  (* (+ (* x x) (+ (* y y) (* x y))) (- x y))
  (* (- (* x x) (* y y)) (+ (pow x 3) (pow y 3)))
  (* (+ x y) (+ (* x x) (- (* y y) (* x y))))
  (* (- (* x x) (* y y)) (- (* x x) (* y y)))
  (* (+ x y) (- x y))
  (* (sqrt (- x y)) (sqrt (+ x y)))
  (* (sqrt (- x y)) (sqrt (+ x y)))
  (* (- x y) x)
  (* (- x y) y)
  (* x (- x y))
  (* y (- x y))
  (* (- x y) (* (cbrt (+ x y)) (cbrt (+ x y))))
  (* (- x y) (sqrt (+ x y)))
  (* (- x y) 1)
  (* (- x y) 1)
  (* (cbrt (- x y)) (+ x y))
  (* (sqrt (- x y)) (+ x y))
  (* (- x y) (+ x y))
  (* (- (sqrt x) (sqrt y)) (+ x y))
  (* (- x y) (+ x y))
  (* (- x y) (+ (pow x 3) (pow y 3)))
  (* (- x y) (- (* x x) (* y y)))
  (* (- (pow x 3) (pow y 3)) (+ x y))
  (* (- (* x x) (* y y)) (+ x y))
  -1
  1
  1
  (+ (pow x 2) (pow y 2))
  (+ (pow x 2) (pow y 2))
  (+ (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
3.682 * * [simplify]: iteration  0 :  127  enodes  (cost  1238 )
3.706 * * [simplify]: iteration  1 :  417  enodes  (cost  1187 )