10.185 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.013 * * * [progress]: [2/2] Setting up program.
0.015 * [progress]: [Phase 2 of 3] Improving.
0.015 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (/ (- x y) (- z y))
0.016 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
0.017 * * [simplify]: iteration  1 :  12  enodes  (cost  7 )
0.018 * * [simplify]: iteration  2 :  16  enodes  (cost  7 )
0.020 * * [simplify]: iteration  3 :  18  enodes  (cost  7 )
0.022 * * [simplify]: iteration  done :  18  enodes  (cost  7 )
0.022 * [simplify]: Simplified to:
   (/ (- x y) (- z y))
0.022 * * [progress]: iteration 1 / 4
0.022 * * * [progress]: picking best candidate
0.024 * * * * [pick]: Picked  #<alt (λ (x y z) (/ (- x y) (- z y)))>
0.024 * * * [progress]: localizing error
0.033 * * * [progress]: generating rewritten candidates
0.033 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.047 * * * [progress]: generating series expansions
0.047 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.048 * [approximate]: Taking taylor expansion of (/ (- x y) (- z y)) in (x y z) around 0
0.048 * [taylor]: Taking taylor expansion of (/ (- x y) (- z y)) in z
0.048 * [taylor]: Taking taylor expansion of (- x y) in z
0.048 * [taylor]: Taking taylor expansion of x in z
0.048 * [taylor]: Taking taylor expansion of y in z
0.048 * [taylor]: Taking taylor expansion of (- z y) in z
0.048 * [taylor]: Taking taylor expansion of z in z
0.048 * [taylor]: Taking taylor expansion of y in z
0.048 * [taylor]: Taking taylor expansion of (/ (- x y) (- z y)) in y
0.048 * [taylor]: Taking taylor expansion of (- x y) in y
0.048 * [taylor]: Taking taylor expansion of x in y
0.048 * [taylor]: Taking taylor expansion of y in y
0.048 * [taylor]: Taking taylor expansion of (- z y) in y
0.048 * [taylor]: Taking taylor expansion of z in y
0.048 * [taylor]: Taking taylor expansion of y in y
0.049 * [taylor]: Taking taylor expansion of (/ (- x y) (- z y)) in x
0.049 * [taylor]: Taking taylor expansion of (- x y) in x
0.049 * [taylor]: Taking taylor expansion of x in x
0.049 * [taylor]: Taking taylor expansion of y in x
0.049 * [taylor]: Taking taylor expansion of (- z y) in x
0.049 * [taylor]: Taking taylor expansion of z in x
0.049 * [taylor]: Taking taylor expansion of y in x
0.049 * [taylor]: Taking taylor expansion of (/ (- x y) (- z y)) in x
0.049 * [taylor]: Taking taylor expansion of (- x y) in x
0.049 * [taylor]: Taking taylor expansion of x in x
0.050 * [taylor]: Taking taylor expansion of y in x
0.050 * [taylor]: Taking taylor expansion of (- z y) in x
0.050 * [taylor]: Taking taylor expansion of z in x
0.050 * [taylor]: Taking taylor expansion of y in x
0.050 * [taylor]: Taking taylor expansion of (* -1 (/ y (- z y))) in y
0.050 * [taylor]: Taking taylor expansion of -1 in y
0.050 * [taylor]: Taking taylor expansion of (/ y (- z y)) in y
0.050 * [taylor]: Taking taylor expansion of y in y
0.050 * [taylor]: Taking taylor expansion of (- z y) in y
0.050 * [taylor]: Taking taylor expansion of z in y
0.050 * [taylor]: Taking taylor expansion of y in y
0.052 * [taylor]: Taking taylor expansion of (/ 1 (- z y)) in y
0.052 * [taylor]: Taking taylor expansion of (- z y) in y
0.052 * [taylor]: Taking taylor expansion of z in y
0.052 * [taylor]: Taking taylor expansion of y in y
0.052 * [taylor]: Taking taylor expansion of (/ 1 z) in z
0.052 * [taylor]: Taking taylor expansion of z in z
0.053 * [taylor]: Taking taylor expansion of (/ -1 z) in z
0.053 * [taylor]: Taking taylor expansion of -1 in z
0.053 * [taylor]: Taking taylor expansion of z in z
0.055 * [taylor]: Taking taylor expansion of 0 in y
0.055 * [taylor]: Taking taylor expansion of 0 in z
0.056 * [taylor]: Taking taylor expansion of (/ 1 (pow z 2)) in z
0.056 * [taylor]: Taking taylor expansion of (pow z 2) in z
0.056 * [taylor]: Taking taylor expansion of z in z
0.059 * [taylor]: Taking taylor expansion of (- (/ 1 (pow z 2))) in z
0.059 * [taylor]: Taking taylor expansion of (/ 1 (pow z 2)) in z
0.059 * [taylor]: Taking taylor expansion of (pow z 2) in z
0.059 * [taylor]: Taking taylor expansion of z in z
0.063 * [approximate]: Taking taylor expansion of (/ (- (/ 1 x) (/ 1 y)) (- (/ 1 z) (/ 1 y))) in (x y z) around 0
0.063 * [taylor]: Taking taylor expansion of (/ (- (/ 1 x) (/ 1 y)) (- (/ 1 z) (/ 1 y))) in z
0.063 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in z
0.063 * [taylor]: Taking taylor expansion of (/ 1 x) in z
0.063 * [taylor]: Taking taylor expansion of x in z
0.063 * [taylor]: Taking taylor expansion of (/ 1 y) in z
0.063 * [taylor]: Taking taylor expansion of y in z
0.063 * [taylor]: Taking taylor expansion of (- (/ 1 z) (/ 1 y)) in z
0.063 * [taylor]: Taking taylor expansion of (/ 1 z) in z
0.063 * [taylor]: Taking taylor expansion of z in z
0.063 * [taylor]: Taking taylor expansion of (/ 1 y) in z
0.063 * [taylor]: Taking taylor expansion of y in z
0.064 * [taylor]: Taking taylor expansion of (/ (- (/ 1 x) (/ 1 y)) (- (/ 1 z) (/ 1 y))) in y
0.064 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
0.064 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.064 * [taylor]: Taking taylor expansion of x in y
0.064 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.064 * [taylor]: Taking taylor expansion of y in y
0.064 * [taylor]: Taking taylor expansion of (- (/ 1 z) (/ 1 y)) in y
0.064 * [taylor]: Taking taylor expansion of (/ 1 z) in y
0.064 * [taylor]: Taking taylor expansion of z in y
0.064 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.064 * [taylor]: Taking taylor expansion of y in y
0.066 * [taylor]: Taking taylor expansion of (/ (- (/ 1 x) (/ 1 y)) (- (/ 1 z) (/ 1 y))) in x
0.066 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.066 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.066 * [taylor]: Taking taylor expansion of x in x
0.066 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.066 * [taylor]: Taking taylor expansion of y in x
0.066 * [taylor]: Taking taylor expansion of (- (/ 1 z) (/ 1 y)) in x
0.066 * [taylor]: Taking taylor expansion of (/ 1 z) in x
0.066 * [taylor]: Taking taylor expansion of z in x
0.066 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.066 * [taylor]: Taking taylor expansion of y in x
0.067 * [taylor]: Taking taylor expansion of (/ (- (/ 1 x) (/ 1 y)) (- (/ 1 z) (/ 1 y))) in x
0.067 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.067 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.067 * [taylor]: Taking taylor expansion of x in x
0.067 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.067 * [taylor]: Taking taylor expansion of y in x
0.067 * [taylor]: Taking taylor expansion of (- (/ 1 z) (/ 1 y)) in x
0.067 * [taylor]: Taking taylor expansion of (/ 1 z) in x
0.067 * [taylor]: Taking taylor expansion of z in x
0.067 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.067 * [taylor]: Taking taylor expansion of y in x
0.068 * [taylor]: Taking taylor expansion of (/ 1 (- (/ 1 z) (/ 1 y))) in y
0.068 * [taylor]: Taking taylor expansion of (- (/ 1 z) (/ 1 y)) in y
0.068 * [taylor]: Taking taylor expansion of (/ 1 z) in y
0.068 * [taylor]: Taking taylor expansion of z in y
0.068 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.068 * [taylor]: Taking taylor expansion of y in y
0.071 * [taylor]: Taking taylor expansion of (- (/ 1 (* y (- (/ 1 z) (/ 1 y))))) in y
0.071 * [taylor]: Taking taylor expansion of (/ 1 (* y (- (/ 1 z) (/ 1 y)))) in y
0.071 * [taylor]: Taking taylor expansion of (* y (- (/ 1 z) (/ 1 y))) in y
0.071 * [taylor]: Taking taylor expansion of y in y
0.071 * [taylor]: Taking taylor expansion of (- (/ 1 z) (/ 1 y)) in y
0.071 * [taylor]: Taking taylor expansion of (/ 1 z) in y
0.071 * [taylor]: Taking taylor expansion of z in y
0.071 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.071 * [taylor]: Taking taylor expansion of y in y
0.074 * [taylor]: Taking taylor expansion of 1 in z
0.074 * [taylor]: Taking taylor expansion of -1 in z
0.076 * [taylor]: Taking taylor expansion of 0 in y
0.076 * [taylor]: Taking taylor expansion of 0 in z
0.078 * [taylor]: Taking taylor expansion of (/ 1 z) in z
0.078 * [taylor]: Taking taylor expansion of z in z
0.080 * [taylor]: Taking taylor expansion of (- (/ 1 z)) in z
0.080 * [taylor]: Taking taylor expansion of (/ 1 z) in z
0.080 * [taylor]: Taking taylor expansion of z in z
0.082 * [approximate]: Taking taylor expansion of (/ (- (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 z))) in (x y z) around 0
0.082 * [taylor]: Taking taylor expansion of (/ (- (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 z))) in z
0.082 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in z
0.082 * [taylor]: Taking taylor expansion of (/ 1 y) in z
0.082 * [taylor]: Taking taylor expansion of y in z
0.082 * [taylor]: Taking taylor expansion of (/ 1 x) in z
0.082 * [taylor]: Taking taylor expansion of x in z
0.082 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 z)) in z
0.082 * [taylor]: Taking taylor expansion of (/ 1 y) in z
0.082 * [taylor]: Taking taylor expansion of y in z
0.082 * [taylor]: Taking taylor expansion of (/ 1 z) in z
0.082 * [taylor]: Taking taylor expansion of z in z
0.083 * [taylor]: Taking taylor expansion of (/ (- (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 z))) in y
0.083 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
0.083 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.083 * [taylor]: Taking taylor expansion of y in y
0.083 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.084 * [taylor]: Taking taylor expansion of x in y
0.084 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 z)) in y
0.084 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.084 * [taylor]: Taking taylor expansion of y in y
0.084 * [taylor]: Taking taylor expansion of (/ 1 z) in y
0.084 * [taylor]: Taking taylor expansion of z in y
0.085 * [taylor]: Taking taylor expansion of (/ (- (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 z))) in x
0.085 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.085 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.085 * [taylor]: Taking taylor expansion of y in x
0.085 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.085 * [taylor]: Taking taylor expansion of x in x
0.085 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 z)) in x
0.085 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.085 * [taylor]: Taking taylor expansion of y in x
0.085 * [taylor]: Taking taylor expansion of (/ 1 z) in x
0.085 * [taylor]: Taking taylor expansion of z in x
0.086 * [taylor]: Taking taylor expansion of (/ (- (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 z))) in x
0.086 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.086 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.086 * [taylor]: Taking taylor expansion of y in x
0.086 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.086 * [taylor]: Taking taylor expansion of x in x
0.086 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 z)) in x
0.086 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.086 * [taylor]: Taking taylor expansion of y in x
0.086 * [taylor]: Taking taylor expansion of (/ 1 z) in x
0.086 * [taylor]: Taking taylor expansion of z in x
0.087 * [taylor]: Taking taylor expansion of (/ -1 (- (/ 1 y) (/ 1 z))) in y
0.087 * [taylor]: Taking taylor expansion of -1 in y
0.087 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 z)) in y
0.087 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.087 * [taylor]: Taking taylor expansion of y in y
0.088 * [taylor]: Taking taylor expansion of (/ 1 z) in y
0.088 * [taylor]: Taking taylor expansion of z in y
0.090 * [taylor]: Taking taylor expansion of (/ 1 (* (- (/ 1 y) (/ 1 z)) y)) in y
0.090 * [taylor]: Taking taylor expansion of (* (- (/ 1 y) (/ 1 z)) y) in y
0.090 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 z)) in y
0.090 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.090 * [taylor]: Taking taylor expansion of y in y
0.090 * [taylor]: Taking taylor expansion of (/ 1 z) in y
0.090 * [taylor]: Taking taylor expansion of z in y
0.091 * [taylor]: Taking taylor expansion of y in y
0.092 * [taylor]: Taking taylor expansion of 1 in z
0.092 * [taylor]: Taking taylor expansion of -1 in z
0.094 * [taylor]: Taking taylor expansion of 0 in y
0.094 * [taylor]: Taking taylor expansion of 0 in z
0.096 * [taylor]: Taking taylor expansion of (/ 1 z) in z
0.096 * [taylor]: Taking taylor expansion of z in z
0.098 * [taylor]: Taking taylor expansion of (- (/ 1 z)) in z
0.098 * [taylor]: Taking taylor expansion of (/ 1 z) in z
0.098 * [taylor]: Taking taylor expansion of z in z
0.100 * * * [progress]: simplifying candidates
0.101 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (expm1 (/ (- x y) (- z y)))
  (log1p (/ (- x y) (- z y)))
  (- (log (- x y)) (log (- z y)))
  (log (/ (- x y) (- z y)))
  (exp (/ (- x y) (- z y)))
  (/ (* (* (- x y) (- x y)) (- x y)) (* (* (- z y) (- z y)) (- z y)))
  (* (cbrt (/ (- x y) (- z y))) (cbrt (/ (- x y) (- z y))))
  (cbrt (/ (- x y) (- z y)))
  (* (* (/ (- x y) (- z y)) (/ (- x y) (- z y))) (/ (- x y) (- z y)))
  (sqrt (/ (- x y) (- z y)))
  (sqrt (/ (- x y) (- z y)))
  (- (- x y))
  (- (- z y))
  (/ x (- z y))
  (/ y (- z y))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (* (cbrt (- z y)) (cbrt (- z y))))
  (/ (cbrt (- x y)) (cbrt (- z y)))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (sqrt (- z y)))
  (/ (cbrt (- x y)) (sqrt (- z y)))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) 1)
  (/ (cbrt (- x y)) (- z y))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (+ (sqrt z) (sqrt y)))
  (/ (cbrt (- x y)) (- (sqrt z) (sqrt y)))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) 1)
  (/ (cbrt (- x y)) (- z y))
  (/ (sqrt (- x y)) (* (cbrt (- z y)) (cbrt (- z y))))
  (/ (sqrt (- x y)) (cbrt (- z y)))
  (/ (sqrt (- x y)) (sqrt (- z y)))
  (/ (sqrt (- x y)) (sqrt (- z y)))
  (/ (sqrt (- x y)) 1)
  (/ (sqrt (- x y)) (- z y))
  (/ (sqrt (- x y)) (+ (sqrt z) (sqrt y)))
  (/ (sqrt (- x y)) (- (sqrt z) (sqrt y)))
  (/ (sqrt (- x y)) 1)
  (/ (sqrt (- x y)) (- z y))
  (/ 1 (* (cbrt (- z y)) (cbrt (- z y))))
  (/ (- x y) (cbrt (- z y)))
  (/ 1 (sqrt (- z y)))
  (/ (- x y) (sqrt (- z y)))
  (/ 1 1)
  (/ (- x y) (- z y))
  (/ 1 (+ (sqrt z) (sqrt y)))
  (/ (- x y) (- (sqrt z) (sqrt y)))
  (/ 1 1)
  (/ (- x y) (- z y))
  (/ (+ (sqrt x) (sqrt y)) (* (cbrt (- z y)) (cbrt (- z y))))
  (/ (- (sqrt x) (sqrt y)) (cbrt (- z y)))
  (/ (+ (sqrt x) (sqrt y)) (sqrt (- z y)))
  (/ (- (sqrt x) (sqrt y)) (sqrt (- z y)))
  (/ (+ (sqrt x) (sqrt y)) 1)
  (/ (- (sqrt x) (sqrt y)) (- z y))
  (/ (+ (sqrt x) (sqrt y)) (+ (sqrt z) (sqrt y)))
  (/ (- (sqrt x) (sqrt y)) (- (sqrt z) (sqrt y)))
  (/ (+ (sqrt x) (sqrt y)) 1)
  (/ (- (sqrt x) (sqrt y)) (- z y))
  (/ 1 (* (cbrt (- z y)) (cbrt (- z y))))
  (/ (- x y) (cbrt (- z y)))
  (/ 1 (sqrt (- z y)))
  (/ (- x y) (sqrt (- z y)))
  (/ 1 1)
  (/ (- x y) (- z y))
  (/ 1 (+ (sqrt z) (sqrt y)))
  (/ (- x y) (- (sqrt z) (sqrt y)))
  (/ 1 1)
  (/ (- x y) (- z y))
  (/ 1 (- z y))
  (/ (- z y) (- x y))
  (/ (- x y) (* (cbrt (- z y)) (cbrt (- z y))))
  (/ (- x y) (sqrt (- z y)))
  (/ (- x y) 1)
  (/ (- x y) (+ (sqrt z) (sqrt y)))
  (/ (- x y) 1)
  (/ (- z y) (cbrt (- x y)))
  (/ (- z y) (sqrt (- x y)))
  (/ (- z y) (- x y))
  (/ (- z y) (- (sqrt x) (sqrt y)))
  (/ (- z y) (- x y))
  (/ (- x y) (- (pow z 3) (pow y 3)))
  (/ (- x y) (- (* z z) (* y y)))
  (* (- z y) (+ (* x x) (+ (* y y) (* x y))))
  (* (- z y) (+ x y))
  0
  0
  0
0.104 * * [simplify]: iteration  0 :  96  enodes  (cost  724 )
0.122 * * [simplify]: iteration  1 :  229  enodes  (cost  696 )