12.750 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
8.828 * * * [progress]: [2/2] Setting up program.
8.831 * [progress]: [Phase 2 of 3] Improving.
8.831 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (* x y) (* z t))
8.833 * * [simplify]: iteration  0 :  11  enodes  (cost  3 )
8.834 * * [simplify]: iteration  1 :  18  enodes  (cost  3 )
8.836 * * [simplify]: iteration  2 :  18  enodes  (cost  3 )
8.836 * [simplify]: Simplified to:
   (- (* x y) (* z t))
8.836 * * [progress]: iteration 1 / 4
8.836 * * * [progress]: picking best candidate
8.839 * * * * [pick]: Picked  #<alt (λ (x y z t) (- (* x y) (* z t)))>
8.839 * * * [progress]: localizing error
8.844 * * * [progress]: generating rewritten candidates
8.844 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
8.848 * * * [progress]: generating series expansions
8.848 * * * * [progress]: [ 1 / 1 ] generating series at (2)
8.848 * [approximate]: Taking taylor expansion of (- (* x y) (* t z)) in (x y z t) around 0
8.848 * [taylor]: Taking taylor expansion of (- (* x y) (* t z)) in t
8.848 * [taylor]: Taking taylor expansion of (* x y) in t
8.848 * [taylor]: Taking taylor expansion of x in t
8.848 * [taylor]: Taking taylor expansion of y in t
8.848 * [taylor]: Taking taylor expansion of (* t z) in t
8.848 * [taylor]: Taking taylor expansion of t in t
8.848 * [taylor]: Taking taylor expansion of z in t
8.848 * [taylor]: Taking taylor expansion of (- (* x y) (* t z)) in z
8.848 * [taylor]: Taking taylor expansion of (* x y) in z
8.848 * [taylor]: Taking taylor expansion of x in z
8.848 * [taylor]: Taking taylor expansion of y in z
8.848 * [taylor]: Taking taylor expansion of (* t z) in z
8.848 * [taylor]: Taking taylor expansion of t in z
8.848 * [taylor]: Taking taylor expansion of z in z
8.848 * [taylor]: Taking taylor expansion of (- (* x y) (* t z)) in y
8.848 * [taylor]: Taking taylor expansion of (* x y) in y
8.848 * [taylor]: Taking taylor expansion of x in y
8.848 * [taylor]: Taking taylor expansion of y in y
8.848 * [taylor]: Taking taylor expansion of (* t z) in y
8.848 * [taylor]: Taking taylor expansion of t in y
8.848 * [taylor]: Taking taylor expansion of z in y
8.848 * [taylor]: Taking taylor expansion of (- (* x y) (* t z)) in x
8.848 * [taylor]: Taking taylor expansion of (* x y) in x
8.848 * [taylor]: Taking taylor expansion of x in x
8.848 * [taylor]: Taking taylor expansion of y in x
8.848 * [taylor]: Taking taylor expansion of (* t z) in x
8.848 * [taylor]: Taking taylor expansion of t in x
8.848 * [taylor]: Taking taylor expansion of z in x
8.848 * [taylor]: Taking taylor expansion of (- (* x y) (* t z)) in x
8.848 * [taylor]: Taking taylor expansion of (* x y) in x
8.848 * [taylor]: Taking taylor expansion of x in x
8.848 * [taylor]: Taking taylor expansion of y in x
8.848 * [taylor]: Taking taylor expansion of (* t z) in x
8.848 * [taylor]: Taking taylor expansion of t in x
8.848 * [taylor]: Taking taylor expansion of z in x
8.849 * [taylor]: Taking taylor expansion of (neg (* t z)) in y
8.849 * [taylor]: Taking taylor expansion of (* t z) in y
8.849 * [taylor]: Taking taylor expansion of t in y
8.849 * [taylor]: Taking taylor expansion of z in y
8.849 * [taylor]: Taking taylor expansion of (neg (* t z)) in z
8.849 * [taylor]: Taking taylor expansion of (* t z) in z
8.849 * [taylor]: Taking taylor expansion of t in z
8.849 * [taylor]: Taking taylor expansion of z in z
8.849 * [taylor]: Taking taylor expansion of 0 in t
8.849 * [taylor]: Taking taylor expansion of y in y
8.849 * [taylor]: Taking taylor expansion of 0 in z
8.849 * [taylor]: Taking taylor expansion of 0 in t
8.849 * [taylor]: Taking taylor expansion of 0 in z
8.849 * [taylor]: Taking taylor expansion of 0 in t
8.849 * [taylor]: Taking taylor expansion of (neg t) in t
8.849 * [taylor]: Taking taylor expansion of t in t
8.849 * [taylor]: Taking taylor expansion of 0 in y
8.849 * [taylor]: Taking taylor expansion of 0 in z
8.849 * [taylor]: Taking taylor expansion of 0 in t
8.849 * [approximate]: Taking taylor expansion of (- (/ 1 (* x y)) (/ 1 (* t z))) in (x y z t) around 0
8.849 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (/ 1 (* t z))) in t
8.849 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in t
8.849 * [taylor]: Taking taylor expansion of (* x y) in t
8.850 * [taylor]: Taking taylor expansion of x in t
8.850 * [taylor]: Taking taylor expansion of y in t
8.850 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in t
8.850 * [taylor]: Taking taylor expansion of (* t z) in t
8.850 * [taylor]: Taking taylor expansion of t in t
8.850 * [taylor]: Taking taylor expansion of z in t
8.850 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (/ 1 (* t z))) in z
8.850 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in z
8.850 * [taylor]: Taking taylor expansion of (* x y) in z
8.850 * [taylor]: Taking taylor expansion of x in z
8.850 * [taylor]: Taking taylor expansion of y in z
8.850 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in z
8.850 * [taylor]: Taking taylor expansion of (* t z) in z
8.850 * [taylor]: Taking taylor expansion of t in z
8.850 * [taylor]: Taking taylor expansion of z in z
8.850 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (/ 1 (* t z))) in y
8.850 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
8.850 * [taylor]: Taking taylor expansion of (* x y) in y
8.850 * [taylor]: Taking taylor expansion of x in y
8.850 * [taylor]: Taking taylor expansion of y in y
8.850 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in y
8.850 * [taylor]: Taking taylor expansion of (* t z) in y
8.850 * [taylor]: Taking taylor expansion of t in y
8.850 * [taylor]: Taking taylor expansion of z in y
8.850 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (/ 1 (* t z))) in x
8.850 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
8.850 * [taylor]: Taking taylor expansion of (* x y) in x
8.850 * [taylor]: Taking taylor expansion of x in x
8.850 * [taylor]: Taking taylor expansion of y in x
8.850 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in x
8.850 * [taylor]: Taking taylor expansion of (* t z) in x
8.850 * [taylor]: Taking taylor expansion of t in x
8.850 * [taylor]: Taking taylor expansion of z in x
8.850 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (/ 1 (* t z))) in x
8.850 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
8.850 * [taylor]: Taking taylor expansion of (* x y) in x
8.850 * [taylor]: Taking taylor expansion of x in x
8.850 * [taylor]: Taking taylor expansion of y in x
8.851 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in x
8.851 * [taylor]: Taking taylor expansion of (* t z) in x
8.851 * [taylor]: Taking taylor expansion of t in x
8.851 * [taylor]: Taking taylor expansion of z in x
8.851 * [taylor]: Taking taylor expansion of (/ 1 y) in y
8.851 * [taylor]: Taking taylor expansion of y in y
8.851 * [taylor]: Taking taylor expansion of 1 in z
8.851 * [taylor]: Taking taylor expansion of (neg (/ 1 (* t z))) in y
8.851 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in y
8.851 * [taylor]: Taking taylor expansion of (* t z) in y
8.851 * [taylor]: Taking taylor expansion of t in y
8.851 * [taylor]: Taking taylor expansion of z in y
8.851 * [taylor]: Taking taylor expansion of 0 in z
8.851 * [taylor]: Taking taylor expansion of 1 in t
8.851 * [taylor]: Taking taylor expansion of 0 in y
8.851 * [taylor]: Taking taylor expansion of (neg (/ 1 (* t z))) in z
8.851 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in z
8.851 * [taylor]: Taking taylor expansion of (* t z) in z
8.851 * [taylor]: Taking taylor expansion of t in z
8.851 * [taylor]: Taking taylor expansion of z in z
8.851 * [taylor]: Taking taylor expansion of (neg (/ 1 t)) in t
8.851 * [taylor]: Taking taylor expansion of (/ 1 t) in t
8.852 * [taylor]: Taking taylor expansion of t in t
8.852 * [taylor]: Taking taylor expansion of 0 in z
8.852 * [taylor]: Taking taylor expansion of 0 in t
8.852 * [taylor]: Taking taylor expansion of 0 in t
8.852 * [taylor]: Taking taylor expansion of 0 in y
8.852 * [taylor]: Taking taylor expansion of 0 in z
8.852 * [taylor]: Taking taylor expansion of 0 in z
8.852 * [taylor]: Taking taylor expansion of 0 in z
8.852 * [taylor]: Taking taylor expansion of 0 in t
8.852 * [taylor]: Taking taylor expansion of 0 in t
8.852 * [taylor]: Taking taylor expansion of 0 in t
8.852 * [taylor]: Taking taylor expansion of 0 in t
8.853 * [taylor]: Taking taylor expansion of 0 in y
8.853 * [taylor]: Taking taylor expansion of 0 in z
8.853 * [taylor]: Taking taylor expansion of 0 in z
8.853 * [taylor]: Taking taylor expansion of 0 in z
8.853 * [taylor]: Taking taylor expansion of 0 in z
8.853 * [taylor]: Taking taylor expansion of 0 in t
8.853 * [taylor]: Taking taylor expansion of 0 in t
8.853 * [taylor]: Taking taylor expansion of 0 in t
8.853 * [taylor]: Taking taylor expansion of 0 in t
8.853 * [taylor]: Taking taylor expansion of 0 in t
8.853 * [taylor]: Taking taylor expansion of 0 in t
8.853 * [taylor]: Taking taylor expansion of 0 in t
8.854 * [approximate]: Taking taylor expansion of (- (/ 1 (* x y)) (/ 1 (* t z))) in (x y z t) around 0
8.854 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (/ 1 (* t z))) in t
8.854 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in t
8.854 * [taylor]: Taking taylor expansion of (* x y) in t
8.854 * [taylor]: Taking taylor expansion of x in t
8.854 * [taylor]: Taking taylor expansion of y in t
8.854 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in t
8.854 * [taylor]: Taking taylor expansion of (* t z) in t
8.854 * [taylor]: Taking taylor expansion of t in t
8.854 * [taylor]: Taking taylor expansion of z in t
8.854 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (/ 1 (* t z))) in z
8.854 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in z
8.854 * [taylor]: Taking taylor expansion of (* x y) in z
8.854 * [taylor]: Taking taylor expansion of x in z
8.854 * [taylor]: Taking taylor expansion of y in z
8.854 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in z
8.854 * [taylor]: Taking taylor expansion of (* t z) in z
8.854 * [taylor]: Taking taylor expansion of t in z
8.854 * [taylor]: Taking taylor expansion of z in z
8.854 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (/ 1 (* t z))) in y
8.854 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
8.854 * [taylor]: Taking taylor expansion of (* x y) in y
8.854 * [taylor]: Taking taylor expansion of x in y
8.854 * [taylor]: Taking taylor expansion of y in y
8.854 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in y
8.854 * [taylor]: Taking taylor expansion of (* t z) in y
8.854 * [taylor]: Taking taylor expansion of t in y
8.854 * [taylor]: Taking taylor expansion of z in y
8.854 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (/ 1 (* t z))) in x
8.854 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
8.854 * [taylor]: Taking taylor expansion of (* x y) in x
8.854 * [taylor]: Taking taylor expansion of x in x
8.854 * [taylor]: Taking taylor expansion of y in x
8.855 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in x
8.855 * [taylor]: Taking taylor expansion of (* t z) in x
8.855 * [taylor]: Taking taylor expansion of t in x
8.855 * [taylor]: Taking taylor expansion of z in x
8.855 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (/ 1 (* t z))) in x
8.855 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
8.855 * [taylor]: Taking taylor expansion of (* x y) in x
8.855 * [taylor]: Taking taylor expansion of x in x
8.855 * [taylor]: Taking taylor expansion of y in x
8.855 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in x
8.855 * [taylor]: Taking taylor expansion of (* t z) in x
8.855 * [taylor]: Taking taylor expansion of t in x
8.855 * [taylor]: Taking taylor expansion of z in x
8.855 * [taylor]: Taking taylor expansion of (/ 1 y) in y
8.855 * [taylor]: Taking taylor expansion of y in y
8.855 * [taylor]: Taking taylor expansion of 1 in z
8.855 * [taylor]: Taking taylor expansion of (neg (/ 1 (* t z))) in y
8.855 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in y
8.855 * [taylor]: Taking taylor expansion of (* t z) in y
8.855 * [taylor]: Taking taylor expansion of t in y
8.855 * [taylor]: Taking taylor expansion of z in y
8.855 * [taylor]: Taking taylor expansion of 0 in z
8.855 * [taylor]: Taking taylor expansion of 1 in t
8.856 * [taylor]: Taking taylor expansion of 0 in y
8.856 * [taylor]: Taking taylor expansion of (neg (/ 1 (* t z))) in z
8.856 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in z
8.856 * [taylor]: Taking taylor expansion of (* t z) in z
8.856 * [taylor]: Taking taylor expansion of t in z
8.856 * [taylor]: Taking taylor expansion of z in z
8.856 * [taylor]: Taking taylor expansion of (neg (/ 1 t)) in t
8.856 * [taylor]: Taking taylor expansion of (/ 1 t) in t
8.856 * [taylor]: Taking taylor expansion of t in t
8.856 * [taylor]: Taking taylor expansion of 0 in z
8.856 * [taylor]: Taking taylor expansion of 0 in t
8.856 * [taylor]: Taking taylor expansion of 0 in t
8.856 * [taylor]: Taking taylor expansion of 0 in y
8.856 * [taylor]: Taking taylor expansion of 0 in z
8.856 * [taylor]: Taking taylor expansion of 0 in z
8.856 * [taylor]: Taking taylor expansion of 0 in z
8.857 * [taylor]: Taking taylor expansion of 0 in t
8.857 * [taylor]: Taking taylor expansion of 0 in t
8.857 * [taylor]: Taking taylor expansion of 0 in t
8.857 * [taylor]: Taking taylor expansion of 0 in t
8.857 * [taylor]: Taking taylor expansion of 0 in y
8.857 * [taylor]: Taking taylor expansion of 0 in z
8.857 * [taylor]: Taking taylor expansion of 0 in z
8.857 * [taylor]: Taking taylor expansion of 0 in z
8.857 * [taylor]: Taking taylor expansion of 0 in z
8.857 * [taylor]: Taking taylor expansion of 0 in t
8.857 * [taylor]: Taking taylor expansion of 0 in t
8.857 * [taylor]: Taking taylor expansion of 0 in t
8.857 * [taylor]: Taking taylor expansion of 0 in t
8.858 * [taylor]: Taking taylor expansion of 0 in t
8.858 * [taylor]: Taking taylor expansion of 0 in t
8.858 * [taylor]: Taking taylor expansion of 0 in t
8.858 * * * [progress]: simplifying candidates
8.858 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (/ (exp (* x y)) (exp (* z t)))
  (log (- (* x y) (* z t)))
  (exp (- (* x y) (* z t)))
  (* (cbrt (- (* x y) (* z t))) (cbrt (- (* x y) (* z t))))
  (cbrt (- (* x y) (* z t)))
  (* (* (- (* x y) (* z t)) (- (* x y) (* z t))) (- (* x y) (* z t)))
  (sqrt (- (* x y) (* z t)))
  (sqrt (- (* x y) (* z t)))
  (- (pow (* x y) 3) (pow (* z t) 3))
  (+ (* (* x y) (* x y)) (+ (* (* z t) (* z t)) (* (* x y) (* z t))))
  (neg (* z t))
  (- (* (* x y) (* x y)) (* (* z t) (* z t)))
  (+ (* x y) (* z t))
  (neg (* z t))
  0
  (- (* x y) (* t z))
  (- (* x y) (* t z))
8.860 * * [simplify]: iteration  0 :  91  enodes  (cost  78 )
8.863 * * [simplify]: iteration  1 :  285  enodes  (cost  71 )
8.869 * * [simplify]: iteration  2 :  895  enodes  (cost  71 )
8.885 * * [simplify]: iteration  3 :  2136  enodes  (cost  71 )
8.928 * * [simplify]: iteration  4 :  5001  enodes  (cost  71 )
8.929 * [simplify]: Simplified to:
   (exp (- (* x y) (* z t)))
  (log (- (* x y) (* z t)))
  (exp (- (* x y) (* z t)))
  (* (cbrt (- (* x y) (* z t))) (cbrt (- (* x y) (* z t))))
  (cbrt (- (* x y) (* z t)))
  (pow (- (* x y) (* t z)) 3)
  (sqrt (- (* x y) (* z t)))
  (sqrt (- (* x y) (* z t)))
  (- (pow (* x y) 3) (pow (* z t) 3))
  (+ (* (* z t) (+ (* z t) (* x y))) (* (* x y) (* x y)))
  (neg (* z t))
  (- (* (* x y) (* x y)) (* (* z t) (* z t)))
  (+ (* x y) (* z t))
  (neg (* z t))
  0
  (- (* x y) (* t z))
  (- (* x y) (* t z))
8.929 * * * [progress]: adding candidates to table
8.944 * [progress]: [Phase 3 of 3] Extracting.
8.947 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (* x y) (* z t))
8.948 * * [simplify]: iteration  0 :  9  enodes  (cost  3 )
8.948 * * [simplify]: iteration  1 :  9  enodes  (cost  3 )
8.948 * [simplify]: Simplified to:
   (- (* x y) (* z t))
19.108 * [regime-testing]: End program error score: 0.01157456713348183