3.677 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.030 * * * [progress]: [2/2] Setting up program.
0.032 * [progress]: [Phase 2 of 3] Improving.
0.032 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (* x x) (* (* y 4.0) (- (* z z) t)))
0.033 * * [simplify]: iteration  0 :  11  enodes  (cost  13 )
0.034 * * [simplify]: iteration  1 :  19  enodes  (cost  13 )
0.037 * * [simplify]: iteration  2 :  49  enodes  (cost  13 )
0.044 * * [simplify]: iteration  3 :  138  enodes  (cost  13 )
0.071 * * [simplify]: iteration  4 :  295  enodes  (cost  13 )
0.166 * * [simplify]: iteration  5 :  446  enodes  (cost  13 )
0.388 * * [simplify]: iteration  6 :  534  enodes  (cost  13 )
0.720 * * [simplify]: iteration  7 :  619  enodes  (cost  13 )
1.112 * * [simplify]: iteration  8 :  788  enodes  (cost  13 )
1.671 * * [simplify]: iteration  9 :  1130  enodes  (cost  13 )
2.778 * * [simplify]: iteration  done :  1130  enodes  (cost  13 )
2.778 * [simplify]: Simplified to:
   (- (* x x) (* (* y 4.0) (- (* z z) t)))
2.779 * * [progress]: iteration 1 / 4
2.779 * * * [progress]: picking best candidate
2.781 * * * * [pick]: Picked  #<alt (λ (x y z t) (- (* x x) (* (* y 4.0) (- (* z z) t))))>
2.781 * * * [progress]: localizing error
2.790 * * * [progress]: generating rewritten candidates
2.790 * * * * [progress]: [ 1 / 2 ] rewriting at (2 2)
2.804 * * * * [progress]: [ 2 / 2 ] rewriting at (2 2 2)
2.808 * * * [progress]: generating series expansions
2.808 * * * * [progress]: [ 1 / 2 ] generating series at (2 2)
2.808 * [approximate]: Taking taylor expansion of (* 4.0 (* (- (pow z 2) t) y)) in (y z t) around 0
2.808 * [taylor]: Taking taylor expansion of (* 4.0 (* (- (pow z 2) t) y)) in t
2.808 * [taylor]: Taking taylor expansion of 4.0 in t
2.808 * [taylor]: Taking taylor expansion of (* (- (pow z 2) t) y) in t
2.808 * [taylor]: Taking taylor expansion of (- (pow z 2) t) in t
2.808 * [taylor]: Taking taylor expansion of (pow z 2) in t
2.808 * [taylor]: Taking taylor expansion of z in t
2.808 * [taylor]: Taking taylor expansion of t in t
2.808 * [taylor]: Taking taylor expansion of y in t
2.808 * [taylor]: Taking taylor expansion of (* 4.0 (* (- (pow z 2) t) y)) in z
2.808 * [taylor]: Taking taylor expansion of 4.0 in z
2.808 * [taylor]: Taking taylor expansion of (* (- (pow z 2) t) y) in z
2.808 * [taylor]: Taking taylor expansion of (- (pow z 2) t) in z
2.808 * [taylor]: Taking taylor expansion of (pow z 2) in z
2.808 * [taylor]: Taking taylor expansion of z in z
2.808 * [taylor]: Taking taylor expansion of t in z
2.808 * [taylor]: Taking taylor expansion of y in z
2.808 * [taylor]: Taking taylor expansion of (* 4.0 (* (- (pow z 2) t) y)) in y
2.808 * [taylor]: Taking taylor expansion of 4.0 in y
2.808 * [taylor]: Taking taylor expansion of (* (- (pow z 2) t) y) in y
2.808 * [taylor]: Taking taylor expansion of (- (pow z 2) t) in y
2.808 * [taylor]: Taking taylor expansion of (pow z 2) in y
2.808 * [taylor]: Taking taylor expansion of z in y
2.808 * [taylor]: Taking taylor expansion of t in y
2.808 * [taylor]: Taking taylor expansion of y in y
2.808 * [taylor]: Taking taylor expansion of (* 4.0 (* (- (pow z 2) t) y)) in y
2.808 * [taylor]: Taking taylor expansion of 4.0 in y
2.808 * [taylor]: Taking taylor expansion of (* (- (pow z 2) t) y) in y
2.808 * [taylor]: Taking taylor expansion of (- (pow z 2) t) in y
2.808 * [taylor]: Taking taylor expansion of (pow z 2) in y
2.808 * [taylor]: Taking taylor expansion of z in y
2.808 * [taylor]: Taking taylor expansion of t in y
2.808 * [taylor]: Taking taylor expansion of y in y
2.809 * [taylor]: Taking taylor expansion of 0 in z
2.809 * [taylor]: Taking taylor expansion of 0 in t
2.811 * [taylor]: Taking taylor expansion of (- (* 4.0 (pow z 2)) (* 4.0 t)) in z
2.811 * [taylor]: Taking taylor expansion of (* 4.0 (pow z 2)) in z
2.811 * [taylor]: Taking taylor expansion of 4.0 in z
2.811 * [taylor]: Taking taylor expansion of (pow z 2) in z
2.811 * [taylor]: Taking taylor expansion of z in z
2.811 * [taylor]: Taking taylor expansion of (* 4.0 t) in z
2.811 * [taylor]: Taking taylor expansion of 4.0 in z
2.811 * [taylor]: Taking taylor expansion of t in z
2.811 * [taylor]: Taking taylor expansion of (- (* 4.0 t)) in t
2.811 * [taylor]: Taking taylor expansion of (* 4.0 t) in t
2.811 * [taylor]: Taking taylor expansion of 4.0 in t
2.811 * [taylor]: Taking taylor expansion of t in t
2.811 * [taylor]: Taking taylor expansion of 0 in t
2.813 * [taylor]: Taking taylor expansion of 0 in z
2.813 * [taylor]: Taking taylor expansion of 0 in t
2.814 * [taylor]: Taking taylor expansion of 0 in t
2.814 * [approximate]: Taking taylor expansion of (* 4.0 (/ (- (/ 1 (pow z 2)) (/ 1 t)) y)) in (y z t) around 0
2.814 * [taylor]: Taking taylor expansion of (* 4.0 (/ (- (/ 1 (pow z 2)) (/ 1 t)) y)) in t
2.814 * [taylor]: Taking taylor expansion of 4.0 in t
2.814 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow z 2)) (/ 1 t)) y) in t
2.814 * [taylor]: Taking taylor expansion of (- (/ 1 (pow z 2)) (/ 1 t)) in t
2.814 * [taylor]: Taking taylor expansion of (/ 1 (pow z 2)) in t
2.815 * [taylor]: Taking taylor expansion of (pow z 2) in t
2.815 * [taylor]: Taking taylor expansion of z in t
2.815 * [taylor]: Taking taylor expansion of (/ 1 t) in t
2.815 * [taylor]: Taking taylor expansion of t in t
2.815 * [taylor]: Taking taylor expansion of y in t
2.815 * [taylor]: Taking taylor expansion of (* 4.0 (/ (- (/ 1 (pow z 2)) (/ 1 t)) y)) in z
2.815 * [taylor]: Taking taylor expansion of 4.0 in z
2.816 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow z 2)) (/ 1 t)) y) in z
2.816 * [taylor]: Taking taylor expansion of (- (/ 1 (pow z 2)) (/ 1 t)) in z
2.816 * [taylor]: Taking taylor expansion of (/ 1 (pow z 2)) in z
2.816 * [taylor]: Taking taylor expansion of (pow z 2) in z
2.816 * [taylor]: Taking taylor expansion of z in z
2.816 * [taylor]: Taking taylor expansion of (/ 1 t) in z
2.816 * [taylor]: Taking taylor expansion of t in z
2.816 * [taylor]: Taking taylor expansion of y in z
2.816 * [taylor]: Taking taylor expansion of (* 4.0 (/ (- (/ 1 (pow z 2)) (/ 1 t)) y)) in y
2.816 * [taylor]: Taking taylor expansion of 4.0 in y
2.817 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow z 2)) (/ 1 t)) y) in y
2.817 * [taylor]: Taking taylor expansion of (- (/ 1 (pow z 2)) (/ 1 t)) in y
2.817 * [taylor]: Taking taylor expansion of (/ 1 (pow z 2)) in y
2.817 * [taylor]: Taking taylor expansion of (pow z 2) in y
2.817 * [taylor]: Taking taylor expansion of z in y
2.817 * [taylor]: Taking taylor expansion of (/ 1 t) in y
2.817 * [taylor]: Taking taylor expansion of t in y
2.817 * [taylor]: Taking taylor expansion of y in y
2.817 * [taylor]: Taking taylor expansion of (* 4.0 (/ (- (/ 1 (pow z 2)) (/ 1 t)) y)) in y
2.817 * [taylor]: Taking taylor expansion of 4.0 in y
2.817 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow z 2)) (/ 1 t)) y) in y
2.817 * [taylor]: Taking taylor expansion of (- (/ 1 (pow z 2)) (/ 1 t)) in y
2.817 * [taylor]: Taking taylor expansion of (/ 1 (pow z 2)) in y
2.817 * [taylor]: Taking taylor expansion of (pow z 2) in y
2.817 * [taylor]: Taking taylor expansion of z in y
2.817 * [taylor]: Taking taylor expansion of (/ 1 t) in y
2.817 * [taylor]: Taking taylor expansion of t in y
2.817 * [taylor]: Taking taylor expansion of y in y
2.818 * [taylor]: Taking taylor expansion of (* 4.0 (- (/ 1 (pow z 2)) (/ 1 t))) in z
2.818 * [taylor]: Taking taylor expansion of 4.0 in z
2.818 * [taylor]: Taking taylor expansion of (- (/ 1 (pow z 2)) (/ 1 t)) in z
2.818 * [taylor]: Taking taylor expansion of (/ 1 (pow z 2)) in z
2.818 * [taylor]: Taking taylor expansion of (pow z 2) in z
2.818 * [taylor]: Taking taylor expansion of z in z
2.818 * [taylor]: Taking taylor expansion of (/ 1 t) in z
2.818 * [taylor]: Taking taylor expansion of t in z
2.819 * [taylor]: Taking taylor expansion of 4.0 in t
2.821 * [taylor]: Taking taylor expansion of 0 in z
2.822 * [taylor]: Taking taylor expansion of 0 in t
2.825 * [taylor]: Taking taylor expansion of 0 in z
2.826 * [taylor]: Taking taylor expansion of (- (* 4.0 (/ 1 t))) in t
2.826 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 t)) in t
2.826 * [taylor]: Taking taylor expansion of 4.0 in t
2.826 * [taylor]: Taking taylor expansion of (/ 1 t) in t
2.826 * [taylor]: Taking taylor expansion of t in t
2.831 * [taylor]: Taking taylor expansion of 0 in z
2.831 * [taylor]: Taking taylor expansion of 0 in t
2.833 * [taylor]: Taking taylor expansion of 0 in t
2.839 * [taylor]: Taking taylor expansion of 0 in z
2.839 * [taylor]: Taking taylor expansion of 0 in t
2.839 * [taylor]: Taking taylor expansion of 0 in t
2.841 * [taylor]: Taking taylor expansion of 0 in t
2.842 * [approximate]: Taking taylor expansion of (* -4.0 (/ (+ (/ 1 (pow z 2)) (/ 1 t)) y)) in (y z t) around 0
2.842 * [taylor]: Taking taylor expansion of (* -4.0 (/ (+ (/ 1 (pow z 2)) (/ 1 t)) y)) in t
2.842 * [taylor]: Taking taylor expansion of -4.0 in t
2.842 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 (pow z 2)) (/ 1 t)) y) in t
2.842 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow z 2)) (/ 1 t)) in t
2.842 * [taylor]: Taking taylor expansion of (/ 1 (pow z 2)) in t
2.842 * [taylor]: Taking taylor expansion of (pow z 2) in t
2.842 * [taylor]: Taking taylor expansion of z in t
2.843 * [taylor]: Taking taylor expansion of (/ 1 t) in t
2.843 * [taylor]: Taking taylor expansion of t in t
2.843 * [taylor]: Taking taylor expansion of y in t
2.843 * [taylor]: Taking taylor expansion of (* -4.0 (/ (+ (/ 1 (pow z 2)) (/ 1 t)) y)) in z
2.843 * [taylor]: Taking taylor expansion of -4.0 in z
2.843 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 (pow z 2)) (/ 1 t)) y) in z
2.843 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow z 2)) (/ 1 t)) in z
2.843 * [taylor]: Taking taylor expansion of (/ 1 (pow z 2)) in z
2.843 * [taylor]: Taking taylor expansion of (pow z 2) in z
2.843 * [taylor]: Taking taylor expansion of z in z
2.844 * [taylor]: Taking taylor expansion of (/ 1 t) in z
2.844 * [taylor]: Taking taylor expansion of t in z
2.844 * [taylor]: Taking taylor expansion of y in z
2.844 * [taylor]: Taking taylor expansion of (* -4.0 (/ (+ (/ 1 (pow z 2)) (/ 1 t)) y)) in y
2.844 * [taylor]: Taking taylor expansion of -4.0 in y
2.844 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 (pow z 2)) (/ 1 t)) y) in y
2.844 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow z 2)) (/ 1 t)) in y
2.844 * [taylor]: Taking taylor expansion of (/ 1 (pow z 2)) in y
2.844 * [taylor]: Taking taylor expansion of (pow z 2) in y
2.844 * [taylor]: Taking taylor expansion of z in y
2.844 * [taylor]: Taking taylor expansion of (/ 1 t) in y
2.844 * [taylor]: Taking taylor expansion of t in y
2.844 * [taylor]: Taking taylor expansion of y in y
2.845 * [taylor]: Taking taylor expansion of (* -4.0 (/ (+ (/ 1 (pow z 2)) (/ 1 t)) y)) in y
2.845 * [taylor]: Taking taylor expansion of -4.0 in y
2.845 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 (pow z 2)) (/ 1 t)) y) in y
2.845 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow z 2)) (/ 1 t)) in y
2.845 * [taylor]: Taking taylor expansion of (/ 1 (pow z 2)) in y
2.845 * [taylor]: Taking taylor expansion of (pow z 2) in y
2.845 * [taylor]: Taking taylor expansion of z in y
2.845 * [taylor]: Taking taylor expansion of (/ 1 t) in y
2.845 * [taylor]: Taking taylor expansion of t in y
2.845 * [taylor]: Taking taylor expansion of y in y
2.845 * [taylor]: Taking taylor expansion of (* -4.0 (+ (/ 1 (pow z 2)) (/ 1 t))) in z
2.845 * [taylor]: Taking taylor expansion of -4.0 in z
2.845 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow z 2)) (/ 1 t)) in z
2.845 * [taylor]: Taking taylor expansion of (/ 1 (pow z 2)) in z
2.845 * [taylor]: Taking taylor expansion of (pow z 2) in z
2.845 * [taylor]: Taking taylor expansion of z in z
2.846 * [taylor]: Taking taylor expansion of (/ 1 t) in z
2.846 * [taylor]: Taking taylor expansion of t in z
2.846 * [taylor]: Taking taylor expansion of -4.0 in t
2.848 * [taylor]: Taking taylor expansion of 0 in z
2.849 * [taylor]: Taking taylor expansion of 0 in t
2.852 * [taylor]: Taking taylor expansion of 0 in z
2.854 * [taylor]: Taking taylor expansion of (- (* 4.0 (/ 1 t))) in t
2.854 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 t)) in t
2.854 * [taylor]: Taking taylor expansion of 4.0 in t
2.854 * [taylor]: Taking taylor expansion of (/ 1 t) in t
2.854 * [taylor]: Taking taylor expansion of t in t
2.862 * [taylor]: Taking taylor expansion of 0 in z
2.862 * [taylor]: Taking taylor expansion of 0 in t
2.864 * [taylor]: Taking taylor expansion of 0 in t
2.869 * [taylor]: Taking taylor expansion of 0 in z
2.870 * [taylor]: Taking taylor expansion of 0 in t
2.870 * [taylor]: Taking taylor expansion of 0 in t
2.872 * [taylor]: Taking taylor expansion of 0 in t
2.873 * * * * [progress]: [ 2 / 2 ] generating series at (2 2 2)
2.873 * [approximate]: Taking taylor expansion of (- (pow z 2) t) in (z t) around 0
2.873 * [taylor]: Taking taylor expansion of (- (pow z 2) t) in t
2.873 * [taylor]: Taking taylor expansion of (pow z 2) in t
2.873 * [taylor]: Taking taylor expansion of z in t
2.873 * [taylor]: Taking taylor expansion of t in t
2.873 * [taylor]: Taking taylor expansion of (- (pow z 2) t) in z
2.873 * [taylor]: Taking taylor expansion of (pow z 2) in z
2.873 * [taylor]: Taking taylor expansion of z in z
2.873 * [taylor]: Taking taylor expansion of t in z
2.873 * [taylor]: Taking taylor expansion of (- (pow z 2) t) in z
2.873 * [taylor]: Taking taylor expansion of (pow z 2) in z
2.873 * [taylor]: Taking taylor expansion of z in z
2.873 * [taylor]: Taking taylor expansion of t in z
2.873 * [taylor]: Taking taylor expansion of (- t) in t
2.873 * [taylor]: Taking taylor expansion of t in t
2.874 * [taylor]: Taking taylor expansion of 0 in t
2.875 * [taylor]: Taking taylor expansion of 1 in t
2.876 * [taylor]: Taking taylor expansion of 0 in t
2.876 * [approximate]: Taking taylor expansion of (- (/ 1 (pow z 2)) (/ 1 t)) in (z t) around 0
2.876 * [taylor]: Taking taylor expansion of (- (/ 1 (pow z 2)) (/ 1 t)) in t
2.876 * [taylor]: Taking taylor expansion of (/ 1 (pow z 2)) in t
2.877 * [taylor]: Taking taylor expansion of (pow z 2) in t
2.877 * [taylor]: Taking taylor expansion of z in t
2.877 * [taylor]: Taking taylor expansion of (/ 1 t) in t
2.877 * [taylor]: Taking taylor expansion of t in t
2.877 * [taylor]: Taking taylor expansion of (- (/ 1 (pow z 2)) (/ 1 t)) in z
2.877 * [taylor]: Taking taylor expansion of (/ 1 (pow z 2)) in z
2.877 * [taylor]: Taking taylor expansion of (pow z 2) in z
2.877 * [taylor]: Taking taylor expansion of z in z
2.877 * [taylor]: Taking taylor expansion of (/ 1 t) in z
2.877 * [taylor]: Taking taylor expansion of t in z
2.878 * [taylor]: Taking taylor expansion of (- (/ 1 (pow z 2)) (/ 1 t)) in z
2.878 * [taylor]: Taking taylor expansion of (/ 1 (pow z 2)) in z
2.878 * [taylor]: Taking taylor expansion of (pow z 2) in z
2.878 * [taylor]: Taking taylor expansion of z in z
2.878 * [taylor]: Taking taylor expansion of (/ 1 t) in z
2.878 * [taylor]: Taking taylor expansion of t in z
2.878 * [taylor]: Taking taylor expansion of 1 in t
2.879 * [taylor]: Taking taylor expansion of 0 in t
2.881 * [taylor]: Taking taylor expansion of (- (/ 1 t)) in t
2.881 * [taylor]: Taking taylor expansion of (/ 1 t) in t
2.881 * [taylor]: Taking taylor expansion of t in t
2.883 * [taylor]: Taking taylor expansion of 0 in t
2.885 * [taylor]: Taking taylor expansion of 0 in t
2.886 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow z 2)) (/ 1 t)) in (z t) around 0
2.886 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow z 2)) (/ 1 t)) in t
2.886 * [taylor]: Taking taylor expansion of (/ 1 (pow z 2)) in t
2.886 * [taylor]: Taking taylor expansion of (pow z 2) in t
2.886 * [taylor]: Taking taylor expansion of z in t
2.886 * [taylor]: Taking taylor expansion of (/ 1 t) in t
2.886 * [taylor]: Taking taylor expansion of t in t
2.886 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow z 2)) (/ 1 t)) in z
2.886 * [taylor]: Taking taylor expansion of (/ 1 (pow z 2)) in z
2.886 * [taylor]: Taking taylor expansion of (pow z 2) in z
2.886 * [taylor]: Taking taylor expansion of z in z
2.887 * [taylor]: Taking taylor expansion of (/ 1 t) in z
2.887 * [taylor]: Taking taylor expansion of t in z
2.887 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow z 2)) (/ 1 t)) in z
2.887 * [taylor]: Taking taylor expansion of (/ 1 (pow z 2)) in z
2.887 * [taylor]: Taking taylor expansion of (pow z 2) in z
2.887 * [taylor]: Taking taylor expansion of z in z
2.887 * [taylor]: Taking taylor expansion of (/ 1 t) in z
2.887 * [taylor]: Taking taylor expansion of t in z
2.888 * [taylor]: Taking taylor expansion of 1 in t
2.889 * [taylor]: Taking taylor expansion of 0 in t
2.890 * [taylor]: Taking taylor expansion of (/ 1 t) in t
2.890 * [taylor]: Taking taylor expansion of t in t
2.891 * [taylor]: Taking taylor expansion of 0 in t
2.893 * [taylor]: Taking taylor expansion of 0 in t
2.894 * * * [progress]: simplifying candidates
2.894 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (* (* y 4.0) (- (* z z) t))
  (* (* y 4.0) (- (* z z) t))
  (+ (+ (log y) (log 4.0)) (log (- (* z z) t)))
  (+ (log (* y 4.0)) (log (- (* z z) t)))
  (log (* (* y 4.0) (- (* z z) t)))
  (exp (* (* y 4.0) (- (* z z) t)))
  (* (* (* (* y y) y) (* (* 4.0 4.0) 4.0)) (* (* (- (* z z) t) (- (* z z) t)) (- (* z z) t)))
  (* (* (* (* y 4.0) (* y 4.0)) (* y 4.0)) (* (* (- (* z z) t) (- (* z z) t)) (- (* z z) t)))
  (* (cbrt (* (* y 4.0) (- (* z z) t))) (cbrt (* (* y 4.0) (- (* z z) t))))
  (cbrt (* (* y 4.0) (- (* z z) t)))
  (* (* (* (* y 4.0) (- (* z z) t)) (* (* y 4.0) (- (* z z) t))) (* (* y 4.0) (- (* z z) t)))
  (sqrt (* (* y 4.0) (- (* z z) t)))
  (sqrt (* (* y 4.0) (- (* z z) t)))
  (* (* y 4.0) (* z z))
  (* (* y 4.0) (- t))
  (* (* y 4.0) (* z z))
  (* (* y 4.0) (- t))
  (* (* z z) (* y 4.0))
  (* (- t) (* y 4.0))
  (* (* z z) (* y 4.0))
  (* (- t) (* y 4.0))
  (* (* y 4.0) (* (cbrt (- (* z z) t)) (cbrt (- (* z z) t))))
  (* (* y 4.0) (sqrt (- (* z z) t)))
  (* (* y 4.0) 1)
  (* (* y 4.0) (+ z (sqrt t)))
  (* 4.0 (- (* z z) t))
  (* (* y 4.0) (- (pow (* z z) 3) (pow t 3)))
  (* (* y 4.0) (- (* (* z z) (* z z)) (* t t)))
  (/ (exp (* z z)) (exp t))
  (log (- (* z z) t))
  (exp (- (* z z) t))
  (* (cbrt (- (* z z) t)) (cbrt (- (* z z) t)))
  (cbrt (- (* z z) t))
  (* (* (- (* z z) t) (- (* z z) t)) (- (* z z) t))
  (sqrt (- (* z z) t))
  (sqrt (- (* z z) t))
  (- (pow (* z z) 3) (pow t 3))
  (+ (* (* z z) (* z z)) (+ (* t t) (* (* z z) t)))
  (- t)
  (- (* (* z z) (* z z)) (* t t))
  (+ (* z z) t)
  (+ z (sqrt t))
  (- z (sqrt t))
  (- t)
  0
  (- (* 4.0 (* (pow z 2) y)) (* 4.0 (* t y)))
  (- (* 4.0 (* (pow z 2) y)) (* 4.0 (* t y)))
  (- (pow z 2) t)
  (- (pow z 2) t)
  (- (pow z 2) t)
2.896 * * [simplify]: iteration  0 :  76  enodes  (cost  489 )
2.909 * * [simplify]: iteration  1 :  216  enodes  (cost  477 )
2.961 * * [simplify]: iteration  2 :  880  enodes  (cost  393 )