61.254 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.035 * * * [progress]: [2/2] Setting up program.
0.037 * [progress]: [Phase 2 of 3] Improving.
0.037 * [simplify]: Simplifying:
  (* (+ x y) (- x y))
0.037 * * [simplify]: Extracting # 0 : cost  0
0.037 * * [simplify]: Extracting # 1 : cost  0
0.037 * * [simplify]: Extracting # 2 : cost  0
0.037 * * [simplify]: Extracting # 3 : cost  0
0.037 * * [simplify]: Extracting # 4 : cost  0
0.038 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
0.038 * * [simplify]: Extracting # 0 : cost  0
0.038 * * [simplify]: Extracting # 1 : cost  0
0.039 * * [simplify]: Extracting # 2 : cost  0
0.039 * * [simplify]: iteration  1 :  9  enodes  (cost  7 )
0.040 * * [simplify]: Extracting # 0 : cost  0
0.040 * * [simplify]: Extracting # 1 : cost  0
0.040 * * [simplify]: Extracting # 2 : cost  0
0.040 * * [simplify]: iteration  2 :  24  enodes  (cost  7 )
0.046 * * [simplify]: Extracting # 0 : cost  0
0.046 * * [simplify]: Extracting # 1 : cost  0
0.046 * * [simplify]: Extracting # 2 : cost  0
0.046 * * [simplify]: iteration  3 :  53  enodes  (cost  7 )
0.060 * * [simplify]: Extracting # 0 : cost  0
0.060 * * [simplify]: Extracting # 1 : cost  0
0.060 * * [simplify]: Extracting # 2 : cost  0
0.060 * * [simplify]: iteration  4 :  122  enodes  (cost  7 )
0.099 * * [simplify]: Extracting # 0 : cost  0
0.100 * * [simplify]: Extracting # 1 : cost  0
0.100 * * [simplify]: Extracting # 2 : cost  0
0.100 * * [simplify]: iteration  5 :  176  enodes  (cost  7 )
0.159 * * [simplify]: Extracting # 0 : cost  0
0.160 * * [simplify]: Extracting # 1 : cost  0
0.160 * * [simplify]: Extracting # 2 : cost  0
0.160 * * [simplify]: iteration  6 :  261  enodes  (cost  7 )
0.289 * * [simplify]: Extracting # 0 : cost  0
0.290 * * [simplify]: Extracting # 1 : cost  0
0.291 * * [simplify]: Extracting # 2 : cost  0
0.291 * * [simplify]: Extracting # 3 : cost  0
0.291 * * [simplify]: Extracting # 4 : cost  0
0.292 * * [simplify]: iteration  7 :  399  enodes  (cost  7 )
0.583 * * [simplify]: Extracting # 0 : cost  0
0.585 * * [simplify]: Extracting # 1 : cost  0
0.586 * * [simplify]: Extracting # 2 : cost  0
0.587 * * [simplify]: iteration  8 :  787  enodes  (cost  7 )
2.621 * * [simplify]: Extracting # 0 : cost  0
2.624 * * [simplify]: Extracting # 1 : cost  0
2.625 * * [simplify]: Extracting # 2 : cost  0
2.626 * * [simplify]: Extracting # 3 : cost  0
2.628 * * [simplify]: Extracting # 4 : cost  0
2.629 * * [simplify]: iteration  9 :  1977  enodes  (cost  7 )
4.552 * * [simplify]: Extracting # 0 : cost  0
4.560 * * [simplify]: Extracting # 1 : cost  0
4.569 * * [simplify]: Extracting # 2 : cost  0
4.573 * * [simplify]: Extracting # 3 : cost  0
4.580 * * [simplify]: Extracting # 4 : cost  0
4.584 * * [simplify]: iteration done:  5000  enodes  (cost  7 )
4.585 * [simplify]: Simplified to:
  (* (+ x y) (- x y))
4.585 * * [progress]: iteration 1 / 4
4.585 * * * [progress]: picking best candidate
4.586 * * * * [pick]: Picked  #<alt (λ (x y) (* (+ x y) (- x y)))>
4.586 * * * [progress]: localizing error
4.591 * * * [progress]: generating rewritten candidates
4.591 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
4.640 * * * [progress]: generating series expansions
4.640 * * * * [progress]: [ 1 / 1 ] generating series at (2)
4.640 * [backup-simplify]: Simplify (* (+ x y) (- x y)) into (* (+ x y) (- x y))
4.640 * [approximate]: Taking taylor expansion of (* (+ x y) (- x y)) in (x y) around 0
4.640 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in y
4.640 * [taylor]: Taking taylor expansion of (+ x y) in y
4.640 * [taylor]: Taking taylor expansion of x in y
4.640 * [backup-simplify]: Simplify x into x
4.640 * [taylor]: Taking taylor expansion of y in y
4.640 * [backup-simplify]: Simplify 0 into 0
4.640 * [backup-simplify]: Simplify 1 into 1
4.640 * [taylor]: Taking taylor expansion of (- x y) in y
4.640 * [taylor]: Taking taylor expansion of x in y
4.640 * [backup-simplify]: Simplify x into x
4.640 * [taylor]: Taking taylor expansion of y in y
4.640 * [backup-simplify]: Simplify 0 into 0
4.640 * [backup-simplify]: Simplify 1 into 1
4.640 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
4.640 * [taylor]: Taking taylor expansion of (+ x y) in x
4.640 * [taylor]: Taking taylor expansion of x in x
4.641 * [backup-simplify]: Simplify 0 into 0
4.641 * [backup-simplify]: Simplify 1 into 1
4.641 * [taylor]: Taking taylor expansion of y in x
4.641 * [backup-simplify]: Simplify y into y
4.641 * [taylor]: Taking taylor expansion of (- x y) in x
4.641 * [taylor]: Taking taylor expansion of x in x
4.641 * [backup-simplify]: Simplify 0 into 0
4.641 * [backup-simplify]: Simplify 1 into 1
4.641 * [taylor]: Taking taylor expansion of y in x
4.641 * [backup-simplify]: Simplify y into y
4.641 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
4.641 * [taylor]: Taking taylor expansion of (+ x y) in x
4.641 * [taylor]: Taking taylor expansion of x in x
4.641 * [backup-simplify]: Simplify 0 into 0
4.641 * [backup-simplify]: Simplify 1 into 1
4.641 * [taylor]: Taking taylor expansion of y in x
4.641 * [backup-simplify]: Simplify y into y
4.641 * [taylor]: Taking taylor expansion of (- x y) in x
4.641 * [taylor]: Taking taylor expansion of x in x
4.641 * [backup-simplify]: Simplify 0 into 0
4.641 * [backup-simplify]: Simplify 1 into 1
4.641 * [taylor]: Taking taylor expansion of y in x
4.641 * [backup-simplify]: Simplify y into y
4.641 * [backup-simplify]: Simplify (+ 0 y) into y
4.641 * [backup-simplify]: Simplify (- y) into (- y)
4.641 * [backup-simplify]: Simplify (+ 0 (- y)) into (- y)
4.641 * [backup-simplify]: Simplify (* y (- y)) into (* -1 (pow y 2))
4.641 * [taylor]: Taking taylor expansion of (* -1 (pow y 2)) in y
4.641 * [taylor]: Taking taylor expansion of -1 in y
4.642 * [backup-simplify]: Simplify -1 into -1
4.642 * [taylor]: Taking taylor expansion of (pow y 2) in y
4.642 * [taylor]: Taking taylor expansion of y in y
4.642 * [backup-simplify]: Simplify 0 into 0
4.642 * [backup-simplify]: Simplify 1 into 1
4.647 * [backup-simplify]: Simplify (- 0) into 0
4.648 * [backup-simplify]: Simplify (+ 1 0) into 1
4.648 * [backup-simplify]: Simplify (+ 1 0) into 1
4.648 * [backup-simplify]: Simplify (+ (* y 1) (* 1 (- y))) into 0
4.648 * [taylor]: Taking taylor expansion of 0 in y
4.648 * [backup-simplify]: Simplify 0 into 0
4.648 * [backup-simplify]: Simplify 0 into 0
4.649 * [backup-simplify]: Simplify (- 0) into 0
4.649 * [backup-simplify]: Simplify (+ 0 0) into 0
4.650 * [backup-simplify]: Simplify (+ 0 0) into 0
4.650 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 1 1) (* 0 (- y)))) into 1
4.650 * [taylor]: Taking taylor expansion of 1 in y
4.650 * [backup-simplify]: Simplify 1 into 1
4.650 * [backup-simplify]: Simplify 1 into 1
4.650 * [backup-simplify]: Simplify 0 into 0
4.650 * [backup-simplify]: Simplify (* 1 1) into 1
4.651 * [backup-simplify]: Simplify (* -1 1) into -1
4.651 * [backup-simplify]: Simplify -1 into -1
4.651 * [backup-simplify]: Simplify (- 0) into 0
4.652 * [backup-simplify]: Simplify (+ 0 0) into 0
4.652 * [backup-simplify]: Simplify (+ 0 0) into 0
4.653 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 1 0) (+ (* 0 1) (* 0 (- y))))) into 0
4.653 * [taylor]: Taking taylor expansion of 0 in y
4.653 * [backup-simplify]: Simplify 0 into 0
4.653 * [backup-simplify]: Simplify 0 into 0
4.653 * [backup-simplify]: Simplify 0 into 0
4.653 * [backup-simplify]: Simplify 0 into 0
4.653 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
4.654 * [backup-simplify]: Simplify (+ (* -1 0) (* 0 1)) into 0
4.654 * [backup-simplify]: Simplify 0 into 0
4.655 * [backup-simplify]: Simplify (- 0) into 0
4.655 * [backup-simplify]: Simplify (+ 0 0) into 0
4.655 * [backup-simplify]: Simplify (+ 0 0) into 0
4.657 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 1) (* 0 (- y)))))) into 0
4.657 * [taylor]: Taking taylor expansion of 0 in y
4.657 * [backup-simplify]: Simplify 0 into 0
4.657 * [backup-simplify]: Simplify 0 into 0
4.657 * [backup-simplify]: Simplify 0 into 0
4.657 * [backup-simplify]: Simplify (+ (* -1 (pow (* y 1) 2)) (* 1 (pow (* 1 x) 2))) into (- (pow x 2) (pow y 2))
4.657 * [backup-simplify]: Simplify (* (+ (/ 1 x) (/ 1 y)) (- (/ 1 x) (/ 1 y))) into (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x)))
4.657 * [approximate]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in (x y) around 0
4.657 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in y
4.657 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
4.658 * [taylor]: Taking taylor expansion of (/ 1 x) in y
4.658 * [taylor]: Taking taylor expansion of x in y
4.658 * [backup-simplify]: Simplify x into x
4.658 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
4.658 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.658 * [taylor]: Taking taylor expansion of y in y
4.658 * [backup-simplify]: Simplify 0 into 0
4.658 * [backup-simplify]: Simplify 1 into 1
4.658 * [backup-simplify]: Simplify (/ 1 1) into 1
4.658 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
4.658 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.658 * [taylor]: Taking taylor expansion of y in y
4.658 * [backup-simplify]: Simplify 0 into 0
4.658 * [backup-simplify]: Simplify 1 into 1
4.659 * [backup-simplify]: Simplify (/ 1 1) into 1
4.659 * [taylor]: Taking taylor expansion of (/ 1 x) in y
4.659 * [taylor]: Taking taylor expansion of x in y
4.659 * [backup-simplify]: Simplify x into x
4.659 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
4.659 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in x
4.659 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
4.659 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.659 * [taylor]: Taking taylor expansion of x in x
4.659 * [backup-simplify]: Simplify 0 into 0
4.659 * [backup-simplify]: Simplify 1 into 1
4.659 * [backup-simplify]: Simplify (/ 1 1) into 1
4.659 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.659 * [taylor]: Taking taylor expansion of y in x
4.659 * [backup-simplify]: Simplify y into y
4.659 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.659 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
4.659 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.659 * [taylor]: Taking taylor expansion of y in x
4.659 * [backup-simplify]: Simplify y into y
4.660 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.660 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.660 * [taylor]: Taking taylor expansion of x in x
4.660 * [backup-simplify]: Simplify 0 into 0
4.660 * [backup-simplify]: Simplify 1 into 1
4.660 * [backup-simplify]: Simplify (/ 1 1) into 1
4.660 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in x
4.660 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
4.660 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.660 * [taylor]: Taking taylor expansion of x in x
4.660 * [backup-simplify]: Simplify 0 into 0
4.660 * [backup-simplify]: Simplify 1 into 1
4.660 * [backup-simplify]: Simplify (/ 1 1) into 1
4.660 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.660 * [taylor]: Taking taylor expansion of y in x
4.661 * [backup-simplify]: Simplify y into y
4.661 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.661 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
4.661 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.661 * [taylor]: Taking taylor expansion of y in x
4.661 * [backup-simplify]: Simplify y into y
4.661 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.661 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.661 * [taylor]: Taking taylor expansion of x in x
4.661 * [backup-simplify]: Simplify 0 into 0
4.661 * [backup-simplify]: Simplify 1 into 1
4.661 * [backup-simplify]: Simplify (/ 1 1) into 1
4.662 * [backup-simplify]: Simplify (+ 1 0) into 1
4.662 * [backup-simplify]: Simplify (+ 0 1) into 1
4.662 * [backup-simplify]: Simplify (* 1 1) into 1
4.662 * [taylor]: Taking taylor expansion of 1 in y
4.662 * [backup-simplify]: Simplify 1 into 1
4.663 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.663 * [backup-simplify]: Simplify (+ (/ 1 y) 0) into (/ 1 y)
4.664 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.664 * [backup-simplify]: Simplify (- (/ 1 y)) into (- (/ 1 y))
4.664 * [backup-simplify]: Simplify (+ 0 (- (/ 1 y))) into (- (/ 1 y))
4.664 * [backup-simplify]: Simplify (+ (* 1 (/ 1 y)) (* (- (/ 1 y)) 1)) into 0
4.664 * [taylor]: Taking taylor expansion of 0 in y
4.664 * [backup-simplify]: Simplify 0 into 0
4.664 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
4.665 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.665 * [backup-simplify]: Simplify (+ 0 0) into 0
4.666 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.666 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
4.667 * [backup-simplify]: Simplify (- 0) into 0
4.667 * [backup-simplify]: Simplify (+ 0 0) into 0
4.668 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (- (/ 1 y)) (/ 1 y)) (* 0 1))) into (- (/ 1 (pow y 2)))
4.668 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
4.668 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
4.668 * [taylor]: Taking taylor expansion of (pow y 2) in y
4.668 * [taylor]: Taking taylor expansion of y in y
4.668 * [backup-simplify]: Simplify 0 into 0
4.668 * [backup-simplify]: Simplify 1 into 1
4.668 * [backup-simplify]: Simplify (* 1 1) into 1
4.669 * [backup-simplify]: Simplify (/ 1 1) into 1
4.669 * [backup-simplify]: Simplify (- 1) into -1
4.669 * [backup-simplify]: Simplify -1 into -1
4.669 * [backup-simplify]: Simplify 1 into 1
4.669 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.670 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.671 * [backup-simplify]: Simplify (+ 0 0) into 0
4.671 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.672 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.672 * [backup-simplify]: Simplify (- 0) into 0
4.672 * [backup-simplify]: Simplify (+ 0 0) into 0
4.673 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (- (/ 1 y)) 0) (+ (* 0 (/ 1 y)) (* 0 1)))) into 0
4.673 * [taylor]: Taking taylor expansion of 0 in y
4.673 * [backup-simplify]: Simplify 0 into 0
4.674 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
4.675 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.675 * [backup-simplify]: Simplify (- 0) into 0
4.675 * [backup-simplify]: Simplify 0 into 0
4.675 * [backup-simplify]: Simplify 0 into 0
4.675 * [backup-simplify]: Simplify 0 into 0
4.675 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.676 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.677 * [backup-simplify]: Simplify (+ 0 0) into 0
4.677 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.678 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.678 * [backup-simplify]: Simplify (- 0) into 0
4.678 * [backup-simplify]: Simplify (+ 0 0) into 0
4.679 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (- (/ 1 y)) 0) (+ (* 0 0) (+ (* 0 (/ 1 y)) (* 0 1))))) into 0
4.679 * [taylor]: Taking taylor expansion of 0 in y
4.679 * [backup-simplify]: Simplify 0 into 0
4.680 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
4.681 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.681 * [backup-simplify]: Simplify (- 0) into 0
4.681 * [backup-simplify]: Simplify 0 into 0
4.681 * [backup-simplify]: Simplify 0 into 0
4.681 * [backup-simplify]: Simplify 0 into 0
4.682 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 x))) 2)) (* -1 (pow (* (/ 1 (/ 1 y)) 1) 2))) into (- (pow x 2) (pow y 2))
4.682 * [backup-simplify]: Simplify (* (+ (/ 1 (- x)) (/ 1 (- y))) (- (/ 1 (- x)) (/ 1 (- y)))) into (* -1 (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))))
4.683 * [approximate]: Taking taylor expansion of (* -1 (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x)))) in (x y) around 0
4.683 * [taylor]: Taking taylor expansion of (* -1 (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x)))) in y
4.683 * [taylor]: Taking taylor expansion of -1 in y
4.683 * [backup-simplify]: Simplify -1 into -1
4.683 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in y
4.683 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
4.683 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.683 * [taylor]: Taking taylor expansion of y in y
4.683 * [backup-simplify]: Simplify 0 into 0
4.683 * [backup-simplify]: Simplify 1 into 1
4.683 * [backup-simplify]: Simplify (/ 1 1) into 1
4.683 * [taylor]: Taking taylor expansion of (/ 1 x) in y
4.683 * [taylor]: Taking taylor expansion of x in y
4.683 * [backup-simplify]: Simplify x into x
4.683 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
4.683 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
4.683 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.683 * [taylor]: Taking taylor expansion of y in y
4.683 * [backup-simplify]: Simplify 0 into 0
4.683 * [backup-simplify]: Simplify 1 into 1
4.684 * [backup-simplify]: Simplify (/ 1 1) into 1
4.684 * [taylor]: Taking taylor expansion of (/ 1 x) in y
4.684 * [taylor]: Taking taylor expansion of x in y
4.684 * [backup-simplify]: Simplify x into x
4.684 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
4.684 * [taylor]: Taking taylor expansion of (* -1 (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x)))) in x
4.684 * [taylor]: Taking taylor expansion of -1 in x
4.684 * [backup-simplify]: Simplify -1 into -1
4.684 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in x
4.684 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
4.684 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.685 * [taylor]: Taking taylor expansion of y in x
4.685 * [backup-simplify]: Simplify y into y
4.685 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.685 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.685 * [taylor]: Taking taylor expansion of x in x
4.685 * [backup-simplify]: Simplify 0 into 0
4.685 * [backup-simplify]: Simplify 1 into 1
4.685 * [backup-simplify]: Simplify (/ 1 1) into 1
4.685 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
4.685 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.685 * [taylor]: Taking taylor expansion of y in x
4.685 * [backup-simplify]: Simplify y into y
4.685 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.685 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.685 * [taylor]: Taking taylor expansion of x in x
4.685 * [backup-simplify]: Simplify 0 into 0
4.685 * [backup-simplify]: Simplify 1 into 1
4.686 * [backup-simplify]: Simplify (/ 1 1) into 1
4.686 * [taylor]: Taking taylor expansion of (* -1 (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x)))) in x
4.686 * [taylor]: Taking taylor expansion of -1 in x
4.686 * [backup-simplify]: Simplify -1 into -1
4.686 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in x
4.686 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
4.686 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.686 * [taylor]: Taking taylor expansion of y in x
4.686 * [backup-simplify]: Simplify y into y
4.686 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.686 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.686 * [taylor]: Taking taylor expansion of x in x
4.686 * [backup-simplify]: Simplify 0 into 0
4.686 * [backup-simplify]: Simplify 1 into 1
4.686 * [backup-simplify]: Simplify (/ 1 1) into 1
4.686 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
4.687 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.687 * [taylor]: Taking taylor expansion of y in x
4.687 * [backup-simplify]: Simplify y into y
4.687 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.687 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.687 * [taylor]: Taking taylor expansion of x in x
4.687 * [backup-simplify]: Simplify 0 into 0
4.687 * [backup-simplify]: Simplify 1 into 1
4.687 * [backup-simplify]: Simplify (/ 1 1) into 1
4.688 * [backup-simplify]: Simplify (+ 0 1) into 1
4.688 * [backup-simplify]: Simplify (- 1) into -1
4.688 * [backup-simplify]: Simplify (+ 0 -1) into -1
4.689 * [backup-simplify]: Simplify (* 1 -1) into -1
4.689 * [backup-simplify]: Simplify (* -1 -1) into 1
4.689 * [taylor]: Taking taylor expansion of 1 in y
4.689 * [backup-simplify]: Simplify 1 into 1
4.690 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.690 * [backup-simplify]: Simplify (- 0) into 0
4.690 * [backup-simplify]: Simplify (+ (/ 1 y) 0) into (/ 1 y)
4.691 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.691 * [backup-simplify]: Simplify (+ (/ 1 y) 0) into (/ 1 y)
4.691 * [backup-simplify]: Simplify (+ (* 1 (/ 1 y)) (* (/ 1 y) -1)) into 0
4.692 * [backup-simplify]: Simplify (+ (* -1 0) (* 0 -1)) into 0
4.692 * [taylor]: Taking taylor expansion of 0 in y
4.692 * [backup-simplify]: Simplify 0 into 0
4.692 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
4.693 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.693 * [backup-simplify]: Simplify (- 0) into 0
4.693 * [backup-simplify]: Simplify (+ 0 0) into 0
4.693 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
4.694 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.694 * [backup-simplify]: Simplify (+ 0 0) into 0
4.695 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (/ 1 y) (/ 1 y)) (* 0 -1))) into (/ 1 (pow y 2))
4.696 * [backup-simplify]: Simplify (+ (* -1 (/ 1 (pow y 2))) (+ (* 0 0) (* 0 -1))) into (- (/ 1 (pow y 2)))
4.696 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
4.696 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
4.696 * [taylor]: Taking taylor expansion of (pow y 2) in y
4.696 * [taylor]: Taking taylor expansion of y in y
4.696 * [backup-simplify]: Simplify 0 into 0
4.696 * [backup-simplify]: Simplify 1 into 1
4.696 * [backup-simplify]: Simplify (* 1 1) into 1
4.696 * [backup-simplify]: Simplify (/ 1 1) into 1
4.696 * [backup-simplify]: Simplify (- 1) into -1
4.696 * [backup-simplify]: Simplify -1 into -1
4.696 * [backup-simplify]: Simplify 1 into 1
4.697 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.697 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.697 * [backup-simplify]: Simplify (- 0) into 0
4.698 * [backup-simplify]: Simplify (+ 0 0) into 0
4.698 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.698 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.698 * [backup-simplify]: Simplify (+ 0 0) into 0
4.699 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (/ 1 y) 0) (+ (* 0 (/ 1 y)) (* 0 -1)))) into 0
4.700 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 (/ 1 (pow y 2))) (+ (* 0 0) (* 0 -1)))) into 0
4.700 * [taylor]: Taking taylor expansion of 0 in y
4.700 * [backup-simplify]: Simplify 0 into 0
4.700 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
4.701 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.701 * [backup-simplify]: Simplify (- 0) into 0
4.701 * [backup-simplify]: Simplify 0 into 0
4.701 * [backup-simplify]: Simplify 0 into 0
4.701 * [backup-simplify]: Simplify 0 into 0
4.701 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.702 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.702 * [backup-simplify]: Simplify (- 0) into 0
4.702 * [backup-simplify]: Simplify (+ 0 0) into 0
4.702 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.703 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.703 * [backup-simplify]: Simplify (+ 0 0) into 0
4.704 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (/ 1 y) 0) (+ (* 0 0) (+ (* 0 (/ 1 y)) (* 0 -1))))) into 0
4.705 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 (/ 1 (pow y 2))) (+ (* 0 0) (* 0 -1))))) into 0
4.705 * [taylor]: Taking taylor expansion of 0 in y
4.705 * [backup-simplify]: Simplify 0 into 0
4.705 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
4.706 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.706 * [backup-simplify]: Simplify (- 0) into 0
4.706 * [backup-simplify]: Simplify 0 into 0
4.706 * [backup-simplify]: Simplify 0 into 0
4.706 * [backup-simplify]: Simplify 0 into 0
4.706 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 (- x)))) 2)) (* -1 (pow (* (/ 1 (/ 1 (- y))) 1) 2))) into (- (pow x 2) (pow y 2))
4.706 * * * [progress]: simplifying candidates
4.707 * [simplify]: Simplifying:
  (* (+ 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 y) x)
  (* (+ x y) (- y))
  (* x (+ x y))
  (* (- y) (+ x 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) (+ (sqrt x) (sqrt y)))
  (* (+ x y) 1)
  (* (cbrt (+ x y)) (- x y))
  (* (sqrt (+ x y)) (- x y))
  (* (+ x 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))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
4.708 * * [simplify]: Extracting # 0 : cost  0
4.708 * * [simplify]: Extracting # 1 : cost  0
4.708 * * [simplify]: Extracting # 2 : cost  0
4.708 * * [simplify]: Extracting # 3 : cost  0
4.708 * * [simplify]: Extracting # 4 : cost  0
4.708 * * [simplify]: Extracting # 5 : cost  0
4.708 * * [simplify]: Extracting # 6 : cost  0
4.709 * * [simplify]: iteration  0 :  70  enodes  (cost  436 )
4.724 * * [simplify]: Extracting # 0 : cost  0
4.724 * * [simplify]: Extracting # 1 : cost  0
4.724 * * [simplify]: Extracting # 2 : cost  0
4.725 * * [simplify]: Extracting # 3 : cost  0
4.725 * * [simplify]: Extracting # 4 : cost  0
4.725 * * [simplify]: iteration  1 :  192  enodes  (cost  423 )
4.863 * * [simplify]: Extracting # 0 : cost  0
4.864 * * [simplify]: Extracting # 1 : cost  0
4.865 * * [simplify]: Extracting # 2 : cost  0
4.866 * * [simplify]: Extracting # 3 : cost  0
4.867 * * [simplify]: Extracting # 4 : cost  0
4.868 * * [simplify]: iteration  2 :  840  enodes  (cost  395 )
5.990 * * [simplify]: Extracting # 0 : cost  0
6.000 * * [simplify]: Extracting # 1 : cost  0
6.005 * * [simplify]: Extracting # 2 : cost  0
6.009 * * [simplify]: Extracting # 3 : cost  0
6.013 * * [simplify]: Extracting # 4 : cost  0
6.019 * * [simplify]: iteration  3 :  3985  enodes  (cost  395 )
7.818 * * [simplify]: Extracting # 0 : cost  0
7.824 * * [simplify]: Extracting # 1 : cost  0
7.837 * * [simplify]: Extracting # 2 : cost  0
7.846 * * [simplify]: Extracting # 3 : cost  0
7.855 * * [simplify]: Extracting # 4 : cost  0
7.864 * * [simplify]: iteration done:  5001  enodes  (cost  395 )
7.865 * [simplify]: Simplified to:
  (- (pow x 2) (pow y 2))
  (log (* (+ x y) (- x y)))
  (log (* (+ x y) (- x y)))
  (exp (* (+ x y) (- x y)))
  (pow (- (pow x 2) (pow y 2)) 3)
  (* (cbrt (* (+ x y) (- x y))) (cbrt (* (+ x y) (- x y))))
  (cbrt (* (+ x y) (- x y)))
  (pow (- (pow x 2) (pow y 2)) 3)
  (sqrt (* (+ x y) (- x y)))
  (sqrt (* (+ x y) (- x y)))
  (* (+ (pow x 3) (pow y 3)) (- (pow x 3) (pow y 3)))
  (* (+ (* y (- y x)) (* x x)) (+ (* y (+ x y)) (* x x)))
  (* (+ (pow x 3) (pow y 3)) (- (* x x) (* y y)))
  (* (+ (* y (- y x)) (* x x)) (+ x y))
  (* (- (* x x) (* y y)) (- (pow x 3) (pow y 3)))
  (* (+ (* y (+ x y)) (* x x)) (- x y))
  (* (- x y) (* (+ x y) (- (* x x) (* y y))))
  (- (pow x 2) (pow y 2))
  (* (sqrt (+ x y)) (sqrt (- x y)))
  (* (sqrt (+ x y)) (sqrt (- x y)))
  (* (+ x y) x)
  (* (+ x y) (- y))
  (* (+ x y) x)
  (* (+ x y) (- y))
  (* (+ x y) x)
  (* (+ x y) (- y))
  (* (+ x y) x)
  (* (+ x y) (- y))
  (* (+ x y) (* (cbrt (- x y)) (cbrt (- x y))))
  (* (+ x y) (sqrt (- x y)))
  (+ x y)
  (* (+ x y) (+ (sqrt x) (sqrt y)))
  (+ x y)
  (* (cbrt (+ x y)) (- x y))
  (* (sqrt (+ x y)) (- x y))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
  (* (+ x y) (- (pow x 3) (pow y 3)))
  (* (+ x y) (- (* x x) (* y y)))
  (* (- x y) (+ (pow x 3) (pow y 3)))
  (* (- (pow x 2) (pow y 2)) (- x y))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
7.865 * * * [progress]: adding candidates to table
7.985 * * [progress]: iteration 2 / 4
7.985 * * * [progress]: picking best candidate
7.987 * * * * [pick]: Picked  #<alt (λ (x y) (* 1 (- (pow x 2) (pow y 2))))>
7.987 * * * [progress]: localizing error
7.995 * * * [progress]: generating rewritten candidates
7.995 * * * [progress]: generating series expansions
7.995 * * * [progress]: simplifying candidates
7.995 * [simplify]: Simplifying:
  
7.995 * * [simplify]: Extracting # 0 : cost  0
7.995 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
7.995 * * [simplify]: Extracting # 0 : cost  0
7.995 * * [simplify]: iteration done:  0  enodes  (cost  0 )
7.995 * [simplify]: Simplified to:
  
7.995 * * * [progress]: adding candidates to table
7.995 * [progress]: [Phase 3 of 3] Extracting.
7.997 * [simplify]: Simplifying:
  (* 1 (- (pow x 2) (pow y 2)))
7.997 * * [simplify]: Extracting # 0 : cost  0
7.997 * * [simplify]: Extracting # 1 : cost  0
7.997 * * [simplify]: Extracting # 2 : cost  0
7.997 * * [simplify]: Extracting # 3 : cost  0
7.997 * * [simplify]: Extracting # 4 : cost  0
7.997 * * [simplify]: Extracting # 5 : cost  0
7.997 * * [simplify]: iteration  0 :  8  enodes  (cost  9 )
7.998 * * [simplify]: Extracting # 0 : cost  0
7.998 * * [simplify]: iteration  1 :  11  enodes  (cost  7 )
7.998 * * [simplify]: Extracting # 0 : cost  0
7.998 * * [simplify]: iteration done:  11  enodes  (cost  7 )
7.998 * [simplify]: Simplified to:
  (- (pow x 2) (pow y 2))
9.700 * [regime-testing]: Baseline error score: 0.007029481021439666
9.701 * [regime-testing]: Oracle error score: 0.007029481021439666
9.701 * [regime-testing]: End program error score: 0.007029481021439666