12.732 * [progress]: [Phase 1 of 3] Setting up.
0.002 * * * [progress]: [1/2] Preparing points
0.061 * * * [progress]: [2/2] Setting up program.
0.063 * [progress]: [Phase 2 of 3] Improving.
0.063 * [simplify]: Simplifying:
  (- (pow x 4.0) (pow y 4.0))
0.063 * * [simplify]: Extracting # 0 : cost  0
0.063 * * [simplify]: Extracting # 1 : cost  0
0.063 * * [simplify]: Extracting # 2 : cost  0
0.063 * * [simplify]: Extracting # 3 : cost  0
0.063 * * [simplify]: Extracting # 4 : cost  0
0.063 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
0.065 * * [simplify]: Extracting # 0 : cost  0
0.065 * * [simplify]: Extracting # 1 : cost  0
0.065 * * [simplify]: Extracting # 2 : cost  0
0.065 * * [simplify]: Extracting # 3 : cost  0
0.065 * * [simplify]: Extracting # 4 : cost  0
0.065 * * [simplify]: iteration  1 :  14  enodes  (cost  7 )
0.067 * * [simplify]: Extracting # 0 : cost  0
0.068 * * [simplify]: Extracting # 1 : cost  0
0.068 * * [simplify]: Extracting # 2 : cost  0
0.068 * * [simplify]: Extracting # 3 : cost  0
0.068 * * [simplify]: Extracting # 4 : cost  0
0.068 * * [simplify]: iteration  2 :  30  enodes  (cost  7 )
0.074 * * [simplify]: Extracting # 0 : cost  0
0.074 * * [simplify]: Extracting # 1 : cost  0
0.074 * * [simplify]: Extracting # 2 : cost  0
0.074 * * [simplify]: Extracting # 3 : cost  0
0.075 * * [simplify]: Extracting # 4 : cost  0
0.075 * * [simplify]: iteration  3 :  74  enodes  (cost  7 )
0.109 * * [simplify]: Extracting # 0 : cost  0
0.110 * * [simplify]: Extracting # 1 : cost  0
0.110 * * [simplify]: Extracting # 2 : cost  0
0.111 * * [simplify]: Extracting # 3 : cost  0
0.111 * * [simplify]: Extracting # 4 : cost  0
0.111 * * [simplify]: iteration  4 :  213  enodes  (cost  7 )
0.283 * * [simplify]: Extracting # 0 : cost  0
0.285 * * [simplify]: Extracting # 1 : cost  0
0.286 * * [simplify]: Extracting # 2 : cost  0
0.287 * * [simplify]: Extracting # 3 : cost  0
0.288 * * [simplify]: Extracting # 4 : cost  0
0.289 * * [simplify]: iteration  5 :  658  enodes  (cost  7 )
1.182 * * [simplify]: Extracting # 0 : cost  0
1.185 * * [simplify]: Extracting # 1 : cost  0
1.188 * * [simplify]: Extracting # 2 : cost  0
1.192 * * [simplify]: Extracting # 3 : cost  0
1.197 * * [simplify]: Extracting # 4 : cost  0
1.203 * * [simplify]: iteration  6 :  3171  enodes  (cost  7 )
2.768 * * [simplify]: Extracting # 0 : cost  0
2.779 * * [simplify]: Extracting # 1 : cost  0
2.785 * * [simplify]: Extracting # 2 : cost  0
2.792 * * [simplify]: iteration done:  5000  enodes  (cost  7 )
2.792 * [simplify]: Simplified to:
  (- (pow x 4.0) (pow y 4.0))
2.792 * * [progress]: iteration 1 / 4
2.792 * * * [progress]: picking best candidate
2.794 * * * * [pick]: Picked  #<alt (λ (x y) (- (pow x 4.0) (pow y 4.0)))>
2.794 * * * [progress]: localizing error
2.801 * * * [progress]: generating rewritten candidates
2.801 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
2.829 * * * [progress]: generating series expansions
2.829 * * * * [progress]: [ 1 / 1 ] generating series at (2)
2.829 * [backup-simplify]: Simplify (- (pow x 4.0) (pow y 4.0)) into (- (pow x 4) (pow y 4))
2.829 * [approximate]: Taking taylor expansion of (- (pow x 4) (pow y 4)) in (x y) around 0
2.829 * [taylor]: Taking taylor expansion of (- (pow x 4) (pow y 4)) in y
2.829 * [taylor]: Taking taylor expansion of (pow x 4) in y
2.829 * [taylor]: Taking taylor expansion of x in y
2.829 * [backup-simplify]: Simplify x into x
2.830 * [taylor]: Taking taylor expansion of (pow y 4) in y
2.830 * [taylor]: Taking taylor expansion of y in y
2.830 * [backup-simplify]: Simplify 0 into 0
2.830 * [backup-simplify]: Simplify 1 into 1
2.830 * [taylor]: Taking taylor expansion of (- (pow x 4) (pow y 4)) in x
2.830 * [taylor]: Taking taylor expansion of (pow x 4) in x
2.830 * [taylor]: Taking taylor expansion of x in x
2.830 * [backup-simplify]: Simplify 0 into 0
2.830 * [backup-simplify]: Simplify 1 into 1
2.830 * [taylor]: Taking taylor expansion of (pow y 4) in x
2.830 * [taylor]: Taking taylor expansion of y in x
2.830 * [backup-simplify]: Simplify y into y
2.830 * [taylor]: Taking taylor expansion of (- (pow x 4) (pow y 4)) in x
2.830 * [taylor]: Taking taylor expansion of (pow x 4) in x
2.830 * [taylor]: Taking taylor expansion of x in x
2.830 * [backup-simplify]: Simplify 0 into 0
2.830 * [backup-simplify]: Simplify 1 into 1
2.830 * [taylor]: Taking taylor expansion of (pow y 4) in x
2.830 * [taylor]: Taking taylor expansion of y in x
2.830 * [backup-simplify]: Simplify y into y
2.831 * [backup-simplify]: Simplify (* y y) into (pow y 2)
2.831 * [backup-simplify]: Simplify (* (pow y 2) (pow y 2)) into (pow y 4)
2.831 * [backup-simplify]: Simplify (- (pow y 4)) into (- (pow y 4))
2.831 * [backup-simplify]: Simplify (+ 0 (- (pow y 4))) into (- (pow y 4))
2.831 * [taylor]: Taking taylor expansion of (- (pow y 4)) in y
2.831 * [taylor]: Taking taylor expansion of (pow y 4) in y
2.831 * [taylor]: Taking taylor expansion of y in y
2.831 * [backup-simplify]: Simplify 0 into 0
2.831 * [backup-simplify]: Simplify 1 into 1
2.832 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
2.832 * [backup-simplify]: Simplify (+ (* (pow y 2) 0) (* 0 (pow y 2))) into 0
2.833 * [backup-simplify]: Simplify (- 0) into 0
2.833 * [backup-simplify]: Simplify (+ 0 0) into 0
2.833 * [taylor]: Taking taylor expansion of 0 in y
2.833 * [backup-simplify]: Simplify 0 into 0
2.833 * [backup-simplify]: Simplify 0 into 0
2.834 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
2.835 * [backup-simplify]: Simplify (+ (* (pow y 2) 0) (+ (* 0 0) (* 0 (pow y 2)))) into 0
2.835 * [backup-simplify]: Simplify (- 0) into 0
2.835 * [backup-simplify]: Simplify (+ 0 0) into 0
2.835 * [taylor]: Taking taylor expansion of 0 in y
2.835 * [backup-simplify]: Simplify 0 into 0
2.835 * [backup-simplify]: Simplify 0 into 0
2.835 * [backup-simplify]: Simplify 0 into 0
2.836 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (+ (* 0 0) (* 0 y)))) into 0
2.837 * [backup-simplify]: Simplify (+ (* (pow y 2) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow y 2))))) into 0
2.838 * [backup-simplify]: Simplify (- 0) into 0
2.838 * [backup-simplify]: Simplify (+ 0 0) into 0
2.838 * [taylor]: Taking taylor expansion of 0 in y
2.838 * [backup-simplify]: Simplify 0 into 0
2.838 * [backup-simplify]: Simplify 0 into 0
2.838 * [backup-simplify]: Simplify 0 into 0
2.838 * [backup-simplify]: Simplify 0 into 0
2.838 * [backup-simplify]: Simplify 0 into 0
2.839 * [backup-simplify]: Simplify (- (pow (/ 1 x) 4.0) (pow (/ 1 y) 4.0)) into (- (/ 1 (pow x 4)) (/ 1 (pow y 4)))
2.839 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in (x y) around 0
2.839 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in y
2.839 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in y
2.839 * [taylor]: Taking taylor expansion of (pow x 4) in y
2.839 * [taylor]: Taking taylor expansion of x in y
2.839 * [backup-simplify]: Simplify x into x
2.839 * [backup-simplify]: Simplify (* x x) into (pow x 2)
2.839 * [backup-simplify]: Simplify (* (pow x 2) (pow x 2)) into (pow x 4)
2.840 * [backup-simplify]: Simplify (/ 1 (pow x 4)) into (/ 1 (pow x 4))
2.840 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y
2.840 * [taylor]: Taking taylor expansion of (pow y 4) in y
2.840 * [taylor]: Taking taylor expansion of y in y
2.840 * [backup-simplify]: Simplify 0 into 0
2.840 * [backup-simplify]: Simplify 1 into 1
2.840 * [backup-simplify]: Simplify (* 1 1) into 1
2.841 * [backup-simplify]: Simplify (* 1 1) into 1
2.841 * [backup-simplify]: Simplify (/ 1 1) into 1
2.841 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in x
2.841 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
2.841 * [taylor]: Taking taylor expansion of (pow x 4) in x
2.841 * [taylor]: Taking taylor expansion of x in x
2.841 * [backup-simplify]: Simplify 0 into 0
2.841 * [backup-simplify]: Simplify 1 into 1
2.841 * [backup-simplify]: Simplify (* 1 1) into 1
2.842 * [backup-simplify]: Simplify (* 1 1) into 1
2.842 * [backup-simplify]: Simplify (/ 1 1) into 1
2.842 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x
2.842 * [taylor]: Taking taylor expansion of (pow y 4) in x
2.842 * [taylor]: Taking taylor expansion of y in x
2.842 * [backup-simplify]: Simplify y into y
2.842 * [backup-simplify]: Simplify (* y y) into (pow y 2)
2.843 * [backup-simplify]: Simplify (* (pow y 2) (pow y 2)) into (pow y 4)
2.843 * [backup-simplify]: Simplify (/ 1 (pow y 4)) into (/ 1 (pow y 4))
2.843 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in x
2.843 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
2.843 * [taylor]: Taking taylor expansion of (pow x 4) in x
2.843 * [taylor]: Taking taylor expansion of x in x
2.843 * [backup-simplify]: Simplify 0 into 0
2.843 * [backup-simplify]: Simplify 1 into 1
2.843 * [backup-simplify]: Simplify (* 1 1) into 1
2.844 * [backup-simplify]: Simplify (* 1 1) into 1
2.844 * [backup-simplify]: Simplify (/ 1 1) into 1
2.844 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x
2.844 * [taylor]: Taking taylor expansion of (pow y 4) in x
2.844 * [taylor]: Taking taylor expansion of y in x
2.844 * [backup-simplify]: Simplify y into y
2.844 * [backup-simplify]: Simplify (* y y) into (pow y 2)
2.844 * [backup-simplify]: Simplify (* (pow y 2) (pow y 2)) into (pow y 4)
2.845 * [backup-simplify]: Simplify (/ 1 (pow y 4)) into (/ 1 (pow y 4))
2.845 * [backup-simplify]: Simplify (+ 1 0) into 1
2.845 * [taylor]: Taking taylor expansion of 1 in y
2.845 * [backup-simplify]: Simplify 1 into 1
2.846 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
2.846 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
2.847 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
2.847 * [backup-simplify]: Simplify (+ 0 0) into 0
2.847 * [taylor]: Taking taylor expansion of 0 in y
2.847 * [backup-simplify]: Simplify 0 into 0
2.848 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
2.849 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
2.850 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
2.855 * [backup-simplify]: Simplify (+ 0 0) into 0
2.855 * [taylor]: Taking taylor expansion of 0 in y
2.855 * [backup-simplify]: Simplify 0 into 0
2.857 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
2.858 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
2.859 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
2.859 * [backup-simplify]: Simplify (+ 0 0) into 0
2.859 * [taylor]: Taking taylor expansion of 0 in y
2.859 * [backup-simplify]: Simplify 0 into 0
2.861 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
2.862 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
2.863 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
2.863 * [backup-simplify]: Simplify (- (/ 1 (pow y 4))) into (- (/ 1 (pow y 4)))
2.863 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow y 4)))) into (- (/ 1 (pow y 4)))
2.863 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 4))) in y
2.863 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y
2.863 * [taylor]: Taking taylor expansion of (pow y 4) in y
2.863 * [taylor]: Taking taylor expansion of y in y
2.863 * [backup-simplify]: Simplify 0 into 0
2.864 * [backup-simplify]: Simplify 1 into 1
2.864 * [backup-simplify]: Simplify (* 1 1) into 1
2.864 * [backup-simplify]: Simplify (* 1 1) into 1
2.865 * [backup-simplify]: Simplify (/ 1 1) into 1
2.865 * [backup-simplify]: Simplify (- 1) into -1
2.865 * [backup-simplify]: Simplify -1 into -1
2.865 * [backup-simplify]: Simplify 1 into 1
2.866 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))))) into 0
2.868 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))))) into 0
2.869 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
2.869 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
2.869 * [backup-simplify]: Simplify (+ (* (pow y 2) 0) (* 0 (pow y 2))) into 0
2.869 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 4)) (/ 0 (pow y 4))))) into 0
2.870 * [backup-simplify]: Simplify (- 0) into 0
2.870 * [backup-simplify]: Simplify (+ 0 0) into 0
2.870 * [taylor]: Taking taylor expansion of 0 in y
2.870 * [backup-simplify]: Simplify 0 into 0
2.871 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
2.872 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
2.872 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
2.873 * [backup-simplify]: Simplify (- 0) into 0
2.873 * [backup-simplify]: Simplify 0 into 0
2.873 * [backup-simplify]: Simplify 0 into 0
2.873 * [backup-simplify]: Simplify 0 into 0
2.874 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))))) into 0
2.876 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))))) into 0
2.876 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
2.877 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
2.878 * [backup-simplify]: Simplify (+ (* (pow y 2) 0) (+ (* 0 0) (* 0 (pow y 2)))) into 0
2.878 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 4)) (/ 0 (pow y 4))) (* 0 (/ 0 (pow y 4))))) into 0
2.879 * [backup-simplify]: Simplify (- 0) into 0
2.879 * [backup-simplify]: Simplify (+ 0 0) into 0
2.879 * [taylor]: Taking taylor expansion of 0 in y
2.879 * [backup-simplify]: Simplify 0 into 0
2.880 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
2.881 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
2.881 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
2.882 * [backup-simplify]: Simplify (- 0) into 0
2.882 * [backup-simplify]: Simplify 0 into 0
2.882 * [backup-simplify]: Simplify 0 into 0
2.882 * [backup-simplify]: Simplify 0 into 0
2.883 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 x))) 4)) (* -1 (pow (* (/ 1 (/ 1 y)) 1) 4))) into (- (pow x 4) (pow y 4))
2.883 * [backup-simplify]: Simplify (- (pow (/ 1 (- x)) 4.0) (pow (/ 1 (- y)) 4.0)) into (- (/ 1 (pow x 4)) (/ 1 (pow y 4)))
2.883 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in (x y) around 0
2.883 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in y
2.884 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in y
2.884 * [taylor]: Taking taylor expansion of (pow x 4) in y
2.884 * [taylor]: Taking taylor expansion of x in y
2.884 * [backup-simplify]: Simplify x into x
2.884 * [backup-simplify]: Simplify (* x x) into (pow x 2)
2.884 * [backup-simplify]: Simplify (* (pow x 2) (pow x 2)) into (pow x 4)
2.884 * [backup-simplify]: Simplify (/ 1 (pow x 4)) into (/ 1 (pow x 4))
2.884 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y
2.884 * [taylor]: Taking taylor expansion of (pow y 4) in y
2.884 * [taylor]: Taking taylor expansion of y in y
2.884 * [backup-simplify]: Simplify 0 into 0
2.884 * [backup-simplify]: Simplify 1 into 1
2.885 * [backup-simplify]: Simplify (* 1 1) into 1
2.885 * [backup-simplify]: Simplify (* 1 1) into 1
2.885 * [backup-simplify]: Simplify (/ 1 1) into 1
2.885 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in x
2.886 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
2.886 * [taylor]: Taking taylor expansion of (pow x 4) in x
2.886 * [taylor]: Taking taylor expansion of x in x
2.886 * [backup-simplify]: Simplify 0 into 0
2.886 * [backup-simplify]: Simplify 1 into 1
2.886 * [backup-simplify]: Simplify (* 1 1) into 1
2.886 * [backup-simplify]: Simplify (* 1 1) into 1
2.886 * [backup-simplify]: Simplify (/ 1 1) into 1
2.887 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x
2.887 * [taylor]: Taking taylor expansion of (pow y 4) in x
2.887 * [taylor]: Taking taylor expansion of y in x
2.887 * [backup-simplify]: Simplify y into y
2.887 * [backup-simplify]: Simplify (* y y) into (pow y 2)
2.887 * [backup-simplify]: Simplify (* (pow y 2) (pow y 2)) into (pow y 4)
2.887 * [backup-simplify]: Simplify (/ 1 (pow y 4)) into (/ 1 (pow y 4))
2.887 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in x
2.887 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
2.887 * [taylor]: Taking taylor expansion of (pow x 4) in x
2.887 * [taylor]: Taking taylor expansion of x in x
2.887 * [backup-simplify]: Simplify 0 into 0
2.887 * [backup-simplify]: Simplify 1 into 1
2.887 * [backup-simplify]: Simplify (* 1 1) into 1
2.887 * [backup-simplify]: Simplify (* 1 1) into 1
2.888 * [backup-simplify]: Simplify (/ 1 1) into 1
2.888 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x
2.888 * [taylor]: Taking taylor expansion of (pow y 4) in x
2.888 * [taylor]: Taking taylor expansion of y in x
2.888 * [backup-simplify]: Simplify y into y
2.888 * [backup-simplify]: Simplify (* y y) into (pow y 2)
2.888 * [backup-simplify]: Simplify (* (pow y 2) (pow y 2)) into (pow y 4)
2.888 * [backup-simplify]: Simplify (/ 1 (pow y 4)) into (/ 1 (pow y 4))
2.888 * [backup-simplify]: Simplify (+ 1 0) into 1
2.888 * [taylor]: Taking taylor expansion of 1 in y
2.888 * [backup-simplify]: Simplify 1 into 1
2.889 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
2.889 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
2.890 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
2.890 * [backup-simplify]: Simplify (+ 0 0) into 0
2.890 * [taylor]: Taking taylor expansion of 0 in y
2.890 * [backup-simplify]: Simplify 0 into 0
2.890 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
2.891 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
2.891 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
2.891 * [backup-simplify]: Simplify (+ 0 0) into 0
2.891 * [taylor]: Taking taylor expansion of 0 in y
2.892 * [backup-simplify]: Simplify 0 into 0
2.892 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
2.893 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
2.893 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
2.893 * [backup-simplify]: Simplify (+ 0 0) into 0
2.893 * [taylor]: Taking taylor expansion of 0 in y
2.893 * [backup-simplify]: Simplify 0 into 0
2.894 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
2.895 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
2.895 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
2.895 * [backup-simplify]: Simplify (- (/ 1 (pow y 4))) into (- (/ 1 (pow y 4)))
2.895 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow y 4)))) into (- (/ 1 (pow y 4)))
2.895 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 4))) in y
2.896 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y
2.896 * [taylor]: Taking taylor expansion of (pow y 4) in y
2.896 * [taylor]: Taking taylor expansion of y in y
2.896 * [backup-simplify]: Simplify 0 into 0
2.896 * [backup-simplify]: Simplify 1 into 1
2.896 * [backup-simplify]: Simplify (* 1 1) into 1
2.896 * [backup-simplify]: Simplify (* 1 1) into 1
2.896 * [backup-simplify]: Simplify (/ 1 1) into 1
2.896 * [backup-simplify]: Simplify (- 1) into -1
2.897 * [backup-simplify]: Simplify -1 into -1
2.897 * [backup-simplify]: Simplify 1 into 1
2.897 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))))) into 0
2.898 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))))) into 0
2.898 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
2.899 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
2.899 * [backup-simplify]: Simplify (+ (* (pow y 2) 0) (* 0 (pow y 2))) into 0
2.899 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 4)) (/ 0 (pow y 4))))) into 0
2.899 * [backup-simplify]: Simplify (- 0) into 0
2.899 * [backup-simplify]: Simplify (+ 0 0) into 0
2.899 * [taylor]: Taking taylor expansion of 0 in y
2.899 * [backup-simplify]: Simplify 0 into 0
2.900 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
2.900 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
2.901 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
2.901 * [backup-simplify]: Simplify (- 0) into 0
2.901 * [backup-simplify]: Simplify 0 into 0
2.901 * [backup-simplify]: Simplify 0 into 0
2.901 * [backup-simplify]: Simplify 0 into 0
2.902 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))))) into 0
2.903 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))))) into 0
2.903 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
2.904 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
2.904 * [backup-simplify]: Simplify (+ (* (pow y 2) 0) (+ (* 0 0) (* 0 (pow y 2)))) into 0
2.904 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 4)) (/ 0 (pow y 4))) (* 0 (/ 0 (pow y 4))))) into 0
2.905 * [backup-simplify]: Simplify (- 0) into 0
2.905 * [backup-simplify]: Simplify (+ 0 0) into 0
2.905 * [taylor]: Taking taylor expansion of 0 in y
2.905 * [backup-simplify]: Simplify 0 into 0
2.905 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
2.906 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
2.906 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
2.907 * [backup-simplify]: Simplify (- 0) into 0
2.907 * [backup-simplify]: Simplify 0 into 0
2.907 * [backup-simplify]: Simplify 0 into 0
2.907 * [backup-simplify]: Simplify 0 into 0
2.907 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 (- x)))) 4)) (* -1 (pow (* (/ 1 (/ 1 (- y))) 1) 4))) into (- (pow x 4) (pow y 4))
2.907 * * * [progress]: simplifying candidates
2.909 * [simplify]: Simplifying:
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0))))
  (fma (- (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0))))
  (fma (- (pow (sqrt y) 4.0)) (pow (sqrt y) 4.0) (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0)))
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (* (pow y 4.0) (pow 1 4.0))))
  (fma (- (pow y 4.0)) (pow 1 4.0) (* (pow y 4.0) (pow 1 4.0)))
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))))))
  (fma (- (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0)))))
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0)))))
  (fma (- (sqrt (pow y 4.0))) (sqrt (pow y 4.0)) (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0))))
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (* (pow y 4.0) 1)))
  (fma (- (pow y 4.0)) 1 (* (pow y 4.0) 1))
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2)))))
  (fma (- (pow y (/ 4.0 2))) (pow y (/ 4.0 2)) (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2))))
  (fma (pow (sqrt x) 4.0) (pow (sqrt x) 4.0) (- (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0))))
  (fma (- (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (fma (pow (sqrt x) 4.0) (pow (sqrt x) 4.0) (- (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0))))
  (fma (- (pow (sqrt y) 4.0)) (pow (sqrt y) 4.0) (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0)))
  (fma (pow (sqrt x) 4.0) (pow (sqrt x) 4.0) (- (* (pow y 4.0) (pow 1 4.0))))
  (fma (- (pow y 4.0)) (pow 1 4.0) (* (pow y 4.0) (pow 1 4.0)))
  (fma (pow (sqrt x) 4.0) (pow (sqrt x) 4.0) (- (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))))))
  (fma (- (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0)))))
  (fma (pow (sqrt x) 4.0) (pow (sqrt x) 4.0) (- (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0)))))
  (fma (- (sqrt (pow y 4.0))) (sqrt (pow y 4.0)) (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0))))
  (fma (pow (sqrt x) 4.0) (pow (sqrt x) 4.0) (- (* (pow y 4.0) 1)))
  (fma (- (pow y 4.0)) 1 (* (pow y 4.0) 1))
  (fma (pow (sqrt x) 4.0) (pow (sqrt x) 4.0) (- (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2)))))
  (fma (- (pow y (/ 4.0 2))) (pow y (/ 4.0 2)) (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2))))
  (fma (pow 1 4.0) (pow x 4.0) (- (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0))))
  (fma (- (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (fma (pow 1 4.0) (pow x 4.0) (- (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0))))
  (fma (- (pow (sqrt y) 4.0)) (pow (sqrt y) 4.0) (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0)))
  (fma (pow 1 4.0) (pow x 4.0) (- (* (pow y 4.0) (pow 1 4.0))))
  (fma (- (pow y 4.0)) (pow 1 4.0) (* (pow y 4.0) (pow 1 4.0)))
  (fma (pow 1 4.0) (pow x 4.0) (- (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))))))
  (fma (- (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0)))))
  (fma (pow 1 4.0) (pow x 4.0) (- (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0)))))
  (fma (- (sqrt (pow y 4.0))) (sqrt (pow y 4.0)) (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0))))
  (fma (pow 1 4.0) (pow x 4.0) (- (* (pow y 4.0) 1)))
  (fma (- (pow y 4.0)) 1 (* (pow y 4.0) 1))
  (fma (pow 1 4.0) (pow x 4.0) (- (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2)))))
  (fma (- (pow y (/ 4.0 2))) (pow y (/ 4.0 2)) (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2))))
  (fma (* (cbrt (pow x 4.0)) (cbrt (pow x 4.0))) (cbrt (pow x 4.0)) (- (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0))))
  (fma (- (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (fma (* (cbrt (pow x 4.0)) (cbrt (pow x 4.0))) (cbrt (pow x 4.0)) (- (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0))))
  (fma (- (pow (sqrt y) 4.0)) (pow (sqrt y) 4.0) (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0)))
  (fma (* (cbrt (pow x 4.0)) (cbrt (pow x 4.0))) (cbrt (pow x 4.0)) (- (* (pow y 4.0) (pow 1 4.0))))
  (fma (- (pow y 4.0)) (pow 1 4.0) (* (pow y 4.0) (pow 1 4.0)))
  (fma (* (cbrt (pow x 4.0)) (cbrt (pow x 4.0))) (cbrt (pow x 4.0)) (- (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))))))
  (fma (- (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0)))))
  (fma (* (cbrt (pow x 4.0)) (cbrt (pow x 4.0))) (cbrt (pow x 4.0)) (- (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0)))))
  (fma (- (sqrt (pow y 4.0))) (sqrt (pow y 4.0)) (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0))))
  (fma (* (cbrt (pow x 4.0)) (cbrt (pow x 4.0))) (cbrt (pow x 4.0)) (- (* (pow y 4.0) 1)))
  (fma (- (pow y 4.0)) 1 (* (pow y 4.0) 1))
  (fma (* (cbrt (pow x 4.0)) (cbrt (pow x 4.0))) (cbrt (pow x 4.0)) (- (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2)))))
  (fma (- (pow y (/ 4.0 2))) (pow y (/ 4.0 2)) (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2))))
  (fma (sqrt (pow x 4.0)) (sqrt (pow x 4.0)) (- (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0))))
  (fma (- (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (fma (sqrt (pow x 4.0)) (sqrt (pow x 4.0)) (- (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0))))
  (fma (- (pow (sqrt y) 4.0)) (pow (sqrt y) 4.0) (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0)))
  (fma (sqrt (pow x 4.0)) (sqrt (pow x 4.0)) (- (* (pow y 4.0) (pow 1 4.0))))
  (fma (- (pow y 4.0)) (pow 1 4.0) (* (pow y 4.0) (pow 1 4.0)))
  (fma (sqrt (pow x 4.0)) (sqrt (pow x 4.0)) (- (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))))))
  (fma (- (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0)))))
  (fma (sqrt (pow x 4.0)) (sqrt (pow x 4.0)) (- (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0)))))
  (fma (- (sqrt (pow y 4.0))) (sqrt (pow y 4.0)) (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0))))
  (fma (sqrt (pow x 4.0)) (sqrt (pow x 4.0)) (- (* (pow y 4.0) 1)))
  (fma (- (pow y 4.0)) 1 (* (pow y 4.0) 1))
  (fma (sqrt (pow x 4.0)) (sqrt (pow x 4.0)) (- (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2)))))
  (fma (- (pow y (/ 4.0 2))) (pow y (/ 4.0 2)) (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2))))
  (fma 1 (pow x 4.0) (- (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0))))
  (fma (- (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (fma 1 (pow x 4.0) (- (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0))))
  (fma (- (pow (sqrt y) 4.0)) (pow (sqrt y) 4.0) (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0)))
  (fma 1 (pow x 4.0) (- (* (pow y 4.0) (pow 1 4.0))))
  (fma (- (pow y 4.0)) (pow 1 4.0) (* (pow y 4.0) (pow 1 4.0)))
  (fma 1 (pow x 4.0) (- (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))))))
  (fma (- (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0)))))
  (fma 1 (pow x 4.0) (- (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0)))))
  (fma (- (sqrt (pow y 4.0))) (sqrt (pow y 4.0)) (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0))))
  (fma 1 (pow x 4.0) (- (* (pow y 4.0) 1)))
  (fma (- (pow y 4.0)) 1 (* (pow y 4.0) 1))
  (fma 1 (pow x 4.0) (- (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2)))))
  (fma (- (pow y (/ 4.0 2))) (pow y (/ 4.0 2)) (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2))))
  (fma (pow x (/ 4.0 2)) (pow x (/ 4.0 2)) (- (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0))))
  (fma (- (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (fma (pow x (/ 4.0 2)) (pow x (/ 4.0 2)) (- (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0))))
  (fma (- (pow (sqrt y) 4.0)) (pow (sqrt y) 4.0) (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0)))
  (fma (pow x (/ 4.0 2)) (pow x (/ 4.0 2)) (- (* (pow y 4.0) (pow 1 4.0))))
  (fma (- (pow y 4.0)) (pow 1 4.0) (* (pow y 4.0) (pow 1 4.0)))
  (fma (pow x (/ 4.0 2)) (pow x (/ 4.0 2)) (- (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))))))
  (fma (- (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0)))))
  (fma (pow x (/ 4.0 2)) (pow x (/ 4.0 2)) (- (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0)))))
  (fma (- (sqrt (pow y 4.0))) (sqrt (pow y 4.0)) (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0))))
  (fma (pow x (/ 4.0 2)) (pow x (/ 4.0 2)) (- (* (pow y 4.0) 1)))
  (fma (- (pow y 4.0)) 1 (* (pow y 4.0) 1))
  (fma (pow x (/ 4.0 2)) (pow x (/ 4.0 2)) (- (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2)))))
  (fma (- (pow y (/ 4.0 2))) (pow y (/ 4.0 2)) (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2))))
  (expm1 (- (pow x 4.0) (pow y 4.0)))
  (log1p (- (pow x 4.0) (pow y 4.0)))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (/ (exp (pow x 4.0)) (exp (pow y 4.0)))
  (log (- (pow x 4.0) (pow y 4.0)))
  (exp (- (pow x 4.0) (pow y 4.0)))
  (* (cbrt (- (pow x 4.0) (pow y 4.0))) (cbrt (- (pow x 4.0) (pow y 4.0))))
  (cbrt (- (pow x 4.0) (pow y 4.0)))
  (* (* (- (pow x 4.0) (pow y 4.0)) (- (pow x 4.0) (pow y 4.0))) (- (pow x 4.0) (pow y 4.0)))
  (sqrt (- (pow x 4.0) (pow y 4.0)))
  (sqrt (- (pow x 4.0) (pow y 4.0)))
  (- (pow (pow x 4.0) 3) (pow (pow y 4.0) 3))
  (+ (* (pow x 4.0) (pow x 4.0)) (+ (* (pow y 4.0) (pow y 4.0)) (* (pow x 4.0) (pow y 4.0))))
  (- (pow y 4.0))
  (- (* (pow x 4.0) (pow x 4.0)) (* (pow y 4.0) (pow y 4.0)))
  (+ (pow x 4.0) (pow y 4.0))
  (+ (pow (sqrt x) 4.0) (pow (sqrt y) 4.0))
  (- (pow (sqrt x) 4.0) (pow (sqrt y) 4.0))
  (+ (pow (sqrt x) 4.0) (sqrt (pow y 4.0)))
  (- (pow (sqrt x) 4.0) (sqrt (pow y 4.0)))
  (+ (pow (sqrt x) 4.0) (pow y (/ 4.0 2)))
  (- (pow (sqrt x) 4.0) (pow y (/ 4.0 2)))
  (+ (sqrt (pow x 4.0)) (pow (sqrt y) 4.0))
  (- (sqrt (pow x 4.0)) (pow (sqrt y) 4.0))
  (+ (sqrt (pow x 4.0)) (sqrt (pow y 4.0)))
  (- (sqrt (pow x 4.0)) (sqrt (pow y 4.0)))
  (+ (sqrt (pow x 4.0)) (pow y (/ 4.0 2)))
  (- (sqrt (pow x 4.0)) (pow y (/ 4.0 2)))
  (+ (pow x (/ 4.0 2)) (pow (sqrt y) 4.0))
  (- (pow x (/ 4.0 2)) (pow (sqrt y) 4.0))
  (+ (pow x (/ 4.0 2)) (sqrt (pow y 4.0)))
  (- (pow x (/ 4.0 2)) (sqrt (pow y 4.0)))
  (+ (pow x (/ 4.0 2)) (pow y (/ 4.0 2)))
  (- (pow x (/ 4.0 2)) (pow y (/ 4.0 2)))
  (- (pow x 4.0) (pow y 4.0))
  (- (pow x 4.0) (pow y 4.0))
  (- (pow y 4.0))
  0
  (- (pow x 4) (pow y 4))
  (- (pow x 4) (pow y 4))
2.912 * * [simplify]: Extracting # 0 : cost  0
2.913 * * [simplify]: Extracting # 1 : cost  0
2.913 * * [simplify]: Extracting # 2 : cost  0
2.913 * * [simplify]: Extracting # 3 : cost  0
2.913 * * [simplify]: Extracting # 4 : cost  0
2.913 * * [simplify]: Extracting # 5 : cost  0
2.914 * * [simplify]: Extracting # 6 : cost  0
2.914 * * [simplify]: Extracting # 7 : cost  0
2.914 * * [simplify]: Extracting # 8 : cost  0
2.914 * * [simplify]: iteration  0 :  152  enodes  (cost  2374 )
2.945 * * [simplify]: Extracting # 0 : cost  0
2.945 * * [simplify]: Extracting # 1 : cost  0
2.945 * * [simplify]: Extracting # 2 : cost  0
2.946 * * [simplify]: Extracting # 3 : cost  0
2.946 * * [simplify]: Extracting # 4 : cost  0
2.946 * * [simplify]: Extracting # 5 : cost  0
2.947 * * [simplify]: iteration  1 :  313  enodes  (cost  1687 )
3.032 * * [simplify]: Extracting # 0 : cost  0
3.033 * * [simplify]: Extracting # 1 : cost  0
3.034 * * [simplify]: Extracting # 2 : cost  0
3.035 * * [simplify]: Extracting # 3 : cost  0
3.036 * * [simplify]: Extracting # 4 : cost  0
3.037 * * [simplify]: iteration  2 :  714  enodes  (cost  1361 )
3.776 * * [simplify]: Extracting # 0 : cost  0
3.782 * * [simplify]: Extracting # 1 : cost  0
3.788 * * [simplify]: Extracting # 2 : cost  0
3.794 * * [simplify]: Extracting # 3 : cost  0
3.800 * * [simplify]: Extracting # 4 : cost  0
3.811 * * [simplify]: Extracting # 5 : cost  0
3.817 * * [simplify]: iteration  3 :  3011  enodes  (cost  1158 )
6.131 * * [simplify]: Extracting # 0 : cost  0
6.139 * * [simplify]: Extracting # 1 : cost  0
6.144 * * [simplify]: Extracting # 2 : cost  0
6.149 * * [simplify]: Extracting # 3 : cost  0
6.157 * * [simplify]: iteration done:  5000  enodes  (cost  934 )
6.157 * [simplify]: Simplified to:
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0))))
  0
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (pow (sqrt y) (* 2 4.0))))
  0
  (- (* (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0)) (pow y 4.0))
  0
  (- (* (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0)) (pow y 4.0))
  0
  (- (* (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0)) (pow y 4.0))
  0
  (- (* (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0)) (pow y 4.0))
  0
  (- (* (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0)) (pow y 4.0))
  0
  (- (pow (sqrt x) (* 2 4.0)) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  0
  (- (pow (sqrt x) (* 2 4.0)) (pow (sqrt y) (* 2 4.0)))
  0
  (- (pow (sqrt x) (* 2 4.0)) (pow y 4.0))
  0
  (- (pow (sqrt x) (* 2 4.0)) (pow y 4.0))
  0
  (- (pow (sqrt x) (* 2 4.0)) (pow y 4.0))
  0
  (- (pow (sqrt x) (* 2 4.0)) (pow y 4.0))
  0
  (- (pow (sqrt x) (* 2 4.0)) (pow y 4.0))
  0
  (fma (pow (* (cbrt y) (cbrt y)) 4.0) (- (pow (cbrt y) 4.0)) (pow x 4.0))
  0
  (- (pow x 4.0) (pow (sqrt y) (* 2 4.0)))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (fma (pow (* (cbrt y) (cbrt y)) 4.0) (- (pow (cbrt y) 4.0)) (pow x 4.0))
  0
  (- (pow x 4.0) (pow (sqrt y) (* 2 4.0)))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (fma (pow (* (cbrt y) (cbrt y)) 4.0) (- (pow (cbrt y) 4.0)) (pow x 4.0))
  0
  (- (pow x 4.0) (pow (sqrt y) (* 2 4.0)))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (fma (pow (* (cbrt y) (cbrt y)) 4.0) (- (pow (cbrt y) 4.0)) (pow x 4.0))
  0
  (- (pow x 4.0) (pow (sqrt y) (* 2 4.0)))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (fma (pow (* (cbrt y) (cbrt y)) 4.0) (- (pow (cbrt y) 4.0)) (pow x 4.0))
  0
  (- (pow x 4.0) (pow (sqrt y) (* 2 4.0)))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (expm1 (- (pow x 4.0) (pow y 4.0)))
  (log1p (- (pow x 4.0) (pow y 4.0)))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (exp (- (pow x 4.0) (pow y 4.0)))
  (log (- (pow x 4.0) (pow y 4.0)))
  (exp (- (pow x 4.0) (pow y 4.0)))
  (* (cbrt (- (pow x 4.0) (pow y 4.0))) (cbrt (- (pow x 4.0) (pow y 4.0))))
  (cbrt (- (pow x 4.0) (pow y 4.0)))
  (pow (- (pow x 4.0) (pow y 4.0)) 3)
  (sqrt (- (pow x 4.0) (pow y 4.0)))
  (sqrt (- (pow x 4.0) (pow y 4.0)))
  (- (pow (pow x 4.0) 3) (pow (pow y 4.0) 3))
  (fma (pow y 4.0) (+ (pow x 4.0) (pow y 4.0)) (pow x (* 2 4.0)))
  (- (pow y 4.0))
  (- (pow x (* 2 4.0)) (pow y (* 2 4.0)))
  (+ (pow x 4.0) (pow y 4.0))
  (+ (pow (sqrt x) 4.0) (pow (sqrt y) 4.0))
  (- (pow (sqrt x) 4.0) (pow (sqrt y) 4.0))
  (+ (pow (sqrt x) 4.0) (sqrt (pow y 4.0)))
  (- (pow (sqrt x) 4.0) (sqrt (pow y 4.0)))
  (+ (pow (sqrt x) 4.0) (pow y (/ 4.0 2)))
  (- (pow (sqrt x) 4.0) (pow y (/ 4.0 2)))
  (+ (sqrt (pow x 4.0)) (pow (sqrt y) 4.0))
  (- (sqrt (pow x 4.0)) (pow (sqrt y) 4.0))
  (+ (sqrt (pow x 4.0)) (sqrt (pow y 4.0)))
  (- (sqrt (pow x 4.0)) (sqrt (pow y 4.0)))
  (+ (sqrt (pow x 4.0)) (pow y (/ 4.0 2)))
  (- (sqrt (pow x 4.0)) (pow y (/ 4.0 2)))
  (+ (pow x (/ 4.0 2)) (pow (sqrt y) 4.0))
  (- (pow x (/ 4.0 2)) (pow (sqrt y) 4.0))
  (+ (pow x (/ 4.0 2)) (sqrt (pow y 4.0)))
  (- (pow x (/ 4.0 2)) (sqrt (pow y 4.0)))
  (+ (pow x (/ 4.0 2)) (pow y (/ 4.0 2)))
  (- (pow x (/ 4.0 2)) (pow y (/ 4.0 2)))
  (- (pow x 4.0) (pow y 4.0))
  (- (pow x 4.0) (pow y 4.0))
  (- (pow y 4.0))
  0
  (- (pow x 4) (pow y 4))
  (- (pow x 4) (pow y 4))
6.158 * * * [progress]: adding candidates to table
6.685 * [progress]: [Phase 3 of 3] Extracting.
6.687 * [simplify]: Simplifying:
  (- (pow x 4.0) (pow y 4.0))
6.687 * * [simplify]: Extracting # 0 : cost  0
6.687 * * [simplify]: Extracting # 1 : cost  0
6.687 * * [simplify]: Extracting # 2 : cost  0
6.687 * * [simplify]: Extracting # 3 : cost  0
6.687 * * [simplify]: Extracting # 4 : cost  0
6.687 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
6.687 * * [simplify]: Extracting # 0 : cost  0
6.687 * * [simplify]: iteration done:  6  enodes  (cost  7 )
6.687 * [simplify]: Simplified to:
  (- (pow x 4.0) (pow y 4.0))
8.438 * [regime-testing]: End program error score: 0.0018752344043005376