14.675 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.020 * * * [progress]: [2/2] Setting up program.
0.022 * [progress]: [Phase 2 of 3] Improving.
0.022 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (* x x) (* (* y 4.0) z))
0.023 * * [simplify]: iteration  0 :  8  enodes  (cost  9 )
0.024 * * [simplify]: iteration  1 :  15  enodes  (cost  9 )
0.026 * * [simplify]: iteration  2 :  32  enodes  (cost  9 )
0.030 * * [simplify]: iteration  3 :  63  enodes  (cost  9 )
0.044 * * [simplify]: iteration  4 :  71  enodes  (cost  9 )
0.053 * * [simplify]: iteration  done :  71  enodes  (cost  9 )
0.053 * [simplify]: Simplified to:
   (- (* x x) (* (* y 4.0) z))
0.054 * * [progress]: iteration 1 / 4
0.054 * * * [progress]: picking best candidate
0.055 * * * * [pick]: Picked  #<alt (λ (x y z) (- (* x x) (* (* y 4.0) z)))>
0.055 * * * [progress]: localizing error
0.061 * * * [progress]: generating rewritten candidates
0.061 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.065 * * * [progress]: generating series expansions
0.065 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.065 * [approximate]: Taking taylor expansion of (- (pow x 2) (* 4.0 (* z y))) in (x y z) around 0
0.065 * [taylor]: Taking taylor expansion of (- (pow x 2) (* 4.0 (* z y))) in z
0.065 * [taylor]: Taking taylor expansion of (pow x 2) in z
0.065 * [taylor]: Taking taylor expansion of x in z
0.065 * [taylor]: Taking taylor expansion of (* 4.0 (* z y)) in z
0.065 * [taylor]: Taking taylor expansion of 4.0 in z
0.065 * [taylor]: Taking taylor expansion of (* z y) in z
0.065 * [taylor]: Taking taylor expansion of z in z
0.065 * [taylor]: Taking taylor expansion of y in z
0.065 * [taylor]: Taking taylor expansion of (- (pow x 2) (* 4.0 (* z y))) in y
0.065 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.065 * [taylor]: Taking taylor expansion of x in y
0.065 * [taylor]: Taking taylor expansion of (* 4.0 (* z y)) in y
0.065 * [taylor]: Taking taylor expansion of 4.0 in y
0.065 * [taylor]: Taking taylor expansion of (* z y) in y
0.065 * [taylor]: Taking taylor expansion of z in y
0.066 * [taylor]: Taking taylor expansion of y in y
0.066 * [taylor]: Taking taylor expansion of (- (pow x 2) (* 4.0 (* z y))) in x
0.066 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.066 * [taylor]: Taking taylor expansion of x in x
0.066 * [taylor]: Taking taylor expansion of (* 4.0 (* z y)) in x
0.066 * [taylor]: Taking taylor expansion of 4.0 in x
0.066 * [taylor]: Taking taylor expansion of (* z y) in x
0.066 * [taylor]: Taking taylor expansion of z in x
0.066 * [taylor]: Taking taylor expansion of y in x
0.066 * [taylor]: Taking taylor expansion of (- (pow x 2) (* 4.0 (* z y))) in x
0.066 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.066 * [taylor]: Taking taylor expansion of x in x
0.066 * [taylor]: Taking taylor expansion of (* 4.0 (* z y)) in x
0.066 * [taylor]: Taking taylor expansion of 4.0 in x
0.066 * [taylor]: Taking taylor expansion of (* z y) in x
0.066 * [taylor]: Taking taylor expansion of z in x
0.066 * [taylor]: Taking taylor expansion of y in x
0.066 * [taylor]: Taking taylor expansion of (- (* 4.0 (* z y))) in y
0.066 * [taylor]: Taking taylor expansion of (* 4.0 (* z y)) in y
0.066 * [taylor]: Taking taylor expansion of 4.0 in y
0.066 * [taylor]: Taking taylor expansion of (* z y) in y
0.066 * [taylor]: Taking taylor expansion of z in y
0.066 * [taylor]: Taking taylor expansion of y in y
0.067 * [taylor]: Taking taylor expansion of 0 in z
0.068 * [taylor]: Taking taylor expansion of 0 in y
0.068 * [taylor]: Taking taylor expansion of 0 in z
0.068 * [taylor]: Taking taylor expansion of (- (* 4.0 z)) in z
0.068 * [taylor]: Taking taylor expansion of (* 4.0 z) in z
0.068 * [taylor]: Taking taylor expansion of 4.0 in z
0.068 * [taylor]: Taking taylor expansion of z in z
0.070 * [taylor]: Taking taylor expansion of 1 in y
0.071 * [taylor]: Taking taylor expansion of 1 in z
0.071 * [taylor]: Taking taylor expansion of 0 in z
0.072 * [taylor]: Taking taylor expansion of 0 in z
0.076 * [taylor]: Taking taylor expansion of 0 in y
0.076 * [taylor]: Taking taylor expansion of 0 in z
0.076 * [taylor]: Taking taylor expansion of 0 in z
0.076 * [taylor]: Taking taylor expansion of 0 in z
0.077 * [taylor]: Taking taylor expansion of 0 in z
0.078 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in (x y z) around 0
0.078 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in z
0.078 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in z
0.078 * [taylor]: Taking taylor expansion of (pow x 2) in z
0.078 * [taylor]: Taking taylor expansion of x in z
0.078 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in z
0.078 * [taylor]: Taking taylor expansion of 4.0 in z
0.078 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in z
0.078 * [taylor]: Taking taylor expansion of (* z y) in z
0.078 * [taylor]: Taking taylor expansion of z in z
0.078 * [taylor]: Taking taylor expansion of y in z
0.078 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in y
0.078 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.078 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.078 * [taylor]: Taking taylor expansion of x in y
0.079 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in y
0.079 * [taylor]: Taking taylor expansion of 4.0 in y
0.079 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in y
0.079 * [taylor]: Taking taylor expansion of (* z y) in y
0.079 * [taylor]: Taking taylor expansion of z in y
0.079 * [taylor]: Taking taylor expansion of y in y
0.079 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in x
0.079 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.079 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.079 * [taylor]: Taking taylor expansion of x in x
0.080 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in x
0.080 * [taylor]: Taking taylor expansion of 4.0 in x
0.080 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in x
0.080 * [taylor]: Taking taylor expansion of (* z y) in x
0.080 * [taylor]: Taking taylor expansion of z in x
0.080 * [taylor]: Taking taylor expansion of y in x
0.080 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in x
0.080 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.080 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.080 * [taylor]: Taking taylor expansion of x in x
0.080 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in x
0.080 * [taylor]: Taking taylor expansion of 4.0 in x
0.080 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in x
0.080 * [taylor]: Taking taylor expansion of (* z y) in x
0.080 * [taylor]: Taking taylor expansion of z in x
0.080 * [taylor]: Taking taylor expansion of y in x
0.081 * [taylor]: Taking taylor expansion of 1 in y
0.082 * [taylor]: Taking taylor expansion of 0 in y
0.082 * [taylor]: Taking taylor expansion of 1 in z
0.083 * [taylor]: Taking taylor expansion of (- (* 4.0 (/ 1 (* z y)))) in y
0.083 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in y
0.083 * [taylor]: Taking taylor expansion of 4.0 in y
0.083 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in y
0.083 * [taylor]: Taking taylor expansion of (* z y) in y
0.083 * [taylor]: Taking taylor expansion of z in y
0.083 * [taylor]: Taking taylor expansion of y in y
0.084 * [taylor]: Taking taylor expansion of (- (* 4.0 (/ 1 z))) in z
0.084 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 z)) in z
0.084 * [taylor]: Taking taylor expansion of 4.0 in z
0.084 * [taylor]: Taking taylor expansion of (/ 1 z) in z
0.084 * [taylor]: Taking taylor expansion of z in z
0.085 * [taylor]: Taking taylor expansion of 0 in z
0.085 * [taylor]: Taking taylor expansion of 0 in z
0.087 * [taylor]: Taking taylor expansion of 0 in y
0.088 * [taylor]: Taking taylor expansion of 0 in z
0.088 * [taylor]: Taking taylor expansion of 0 in z
0.088 * [taylor]: Taking taylor expansion of 0 in z
0.092 * [taylor]: Taking taylor expansion of 0 in y
0.092 * [taylor]: Taking taylor expansion of 0 in z
0.093 * [taylor]: Taking taylor expansion of 0 in z
0.093 * [taylor]: Taking taylor expansion of 0 in z
0.093 * [taylor]: Taking taylor expansion of 0 in z
0.094 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in (x y z) around 0
0.094 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in z
0.094 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in z
0.094 * [taylor]: Taking taylor expansion of (pow x 2) in z
0.094 * [taylor]: Taking taylor expansion of x in z
0.094 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in z
0.094 * [taylor]: Taking taylor expansion of 4.0 in z
0.094 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in z
0.094 * [taylor]: Taking taylor expansion of (* z y) in z
0.094 * [taylor]: Taking taylor expansion of z in z
0.094 * [taylor]: Taking taylor expansion of y in z
0.094 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in y
0.094 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.094 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.095 * [taylor]: Taking taylor expansion of x in y
0.095 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in y
0.095 * [taylor]: Taking taylor expansion of 4.0 in y
0.095 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in y
0.095 * [taylor]: Taking taylor expansion of (* z y) in y
0.095 * [taylor]: Taking taylor expansion of z in y
0.095 * [taylor]: Taking taylor expansion of y in y
0.095 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in x
0.095 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.095 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.095 * [taylor]: Taking taylor expansion of x in x
0.096 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in x
0.096 * [taylor]: Taking taylor expansion of 4.0 in x
0.096 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in x
0.096 * [taylor]: Taking taylor expansion of (* z y) in x
0.096 * [taylor]: Taking taylor expansion of z in x
0.096 * [taylor]: Taking taylor expansion of y in x
0.096 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in x
0.096 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.096 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.096 * [taylor]: Taking taylor expansion of x in x
0.096 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in x
0.096 * [taylor]: Taking taylor expansion of 4.0 in x
0.096 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in x
0.096 * [taylor]: Taking taylor expansion of (* z y) in x
0.096 * [taylor]: Taking taylor expansion of z in x
0.096 * [taylor]: Taking taylor expansion of y in x
0.097 * [taylor]: Taking taylor expansion of 1 in y
0.098 * [taylor]: Taking taylor expansion of 0 in y
0.098 * [taylor]: Taking taylor expansion of 1 in z
0.099 * [taylor]: Taking taylor expansion of (- (* 4.0 (/ 1 (* z y)))) in y
0.099 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in y
0.099 * [taylor]: Taking taylor expansion of 4.0 in y
0.099 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in y
0.099 * [taylor]: Taking taylor expansion of (* z y) in y
0.099 * [taylor]: Taking taylor expansion of z in y
0.099 * [taylor]: Taking taylor expansion of y in y
0.099 * [taylor]: Taking taylor expansion of (- (* 4.0 (/ 1 z))) in z
0.100 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 z)) in z
0.100 * [taylor]: Taking taylor expansion of 4.0 in z
0.100 * [taylor]: Taking taylor expansion of (/ 1 z) in z
0.100 * [taylor]: Taking taylor expansion of z in z
0.101 * [taylor]: Taking taylor expansion of 0 in z
0.101 * [taylor]: Taking taylor expansion of 0 in z
0.103 * [taylor]: Taking taylor expansion of 0 in y
0.104 * [taylor]: Taking taylor expansion of 0 in z
0.104 * [taylor]: Taking taylor expansion of 0 in z
0.104 * [taylor]: Taking taylor expansion of 0 in z
0.110 * [taylor]: Taking taylor expansion of 0 in y
0.110 * [taylor]: Taking taylor expansion of 0 in z
0.111 * [taylor]: Taking taylor expansion of 0 in z
0.111 * [taylor]: Taking taylor expansion of 0 in z
0.111 * [taylor]: Taking taylor expansion of 0 in z
0.112 * * * [progress]: simplifying candidates
0.112 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (fma x x (- (* z (* y 4.0))))
  (fma (- z) (* y 4.0) (* z (* y 4.0)))
  (expm1 (- (* x x) (* (* y 4.0) z)))
  (log1p (- (* x x) (* (* y 4.0) z)))
  (- (* (* y 4.0) z))
  (/ (exp (* x x)) (exp (* (* y 4.0) z)))
  (log (- (* x x) (* (* y 4.0) z)))
  (exp (- (* x x) (* (* y 4.0) z)))
  (* (cbrt (- (* x x) (* (* y 4.0) z))) (cbrt (- (* x x) (* (* y 4.0) z))))
  (cbrt (- (* x x) (* (* y 4.0) z)))
  (* (* (- (* x x) (* (* y 4.0) z)) (- (* x x) (* (* y 4.0) z))) (- (* x x) (* (* y 4.0) z)))
  (sqrt (- (* x x) (* (* y 4.0) z)))
  (sqrt (- (* x x) (* (* y 4.0) z)))
  (- (pow (* x x) 3) (pow (* (* y 4.0) z) 3))
  (+ (* (* x x) (* x x)) (+ (* (* (* y 4.0) z) (* (* y 4.0) z)) (* (* x x) (* (* y 4.0) z))))
  (- (* (* y 4.0) z))
  (- (* (* x x) (* x x)) (* (* (* y 4.0) z) (* (* y 4.0) z)))
  (+ (* x x) (* (* y 4.0) z))
  (- (* (* y 4.0) z))
  (- (pow x 2) (* 4.0 (* z y)))
  (- (pow x 2) (* 4.0 (* z y)))
  (- (pow x 2) (* 4.0 (* z y)))
0.114 * * [simplify]: iteration  0 :  42  enodes  (cost  266 )
0.122 * * [simplify]: iteration  1 :  112  enodes  (cost  255 )
0.155 * * [simplify]: iteration  2 :  481  enodes  (cost  225 )
0.411 * * [simplify]: iteration  3 :  2083  enodes  (cost  225 )
1.903 * * [simplify]: iteration  done :  5000  enodes  (cost  224 )
1.903 * [simplify]: Simplified to:
   (- (* x x) (* (* y 4.0) z))
  (* z (* y (- 4.0 4.0)))
  (expm1 (- (* x x) (* (* y 4.0) z)))
  (log1p (- (* x x) (* (* y 4.0) z)))
  (- (* (* y 4.0) z))
  (exp (- (pow x 2) (* 4.0 (* z y))))
  (log (- (* x x) (* (* y 4.0) z)))
  (exp (- (pow x 2) (* 4.0 (* z y))))
  (* (cbrt (- (* x x) (* (* y 4.0) z))) (cbrt (- (* x x) (* (* y 4.0) z))))
  (cbrt (- (* x x) (* (* y 4.0) z)))
  (pow (- (* x x) (* (* y 4.0) z)) 3)
  (sqrt (- (* x x) (* (* y 4.0) z)))
  (sqrt (- (* x x) (* (* y 4.0) z)))
  (- (pow x 6) (pow (* (* y 4.0) z) 3))
  (fma (* (* y 4.0) z) (fma x x (* z (* y 4.0))) (pow x 4))
  (- (* (* y 4.0) z))
  (- (pow x 4) (* (* (* y 4.0) z) (* (* y 4.0) z)))
  (fma x x (* z (* y 4.0)))
  (- (* (* y 4.0) z))
  (- (* x x) (* (* y 4.0) z))
  (- (* x x) (* (* y 4.0) z))
  (- (* x x) (* (* y 4.0) z))
1.903 * * * [progress]: adding candidates to table
1.945 * * [progress]: iteration 2 / 4
1.945 * * * [progress]: picking best candidate
1.947 * * * * [pick]: Picked  #<alt (λ (x y z) (fma x x (- (* (* y 4.0) z))))>
1.947 * * * [progress]: localizing error
1.954 * * * [progress]: generating rewritten candidates
1.954 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
1.955 * * * [progress]: generating series expansions
1.955 * * * * [progress]: [ 1 / 1 ] generating series at (2)
1.955 * [approximate]: Taking taylor expansion of (fma x x (- (* 4.0 (* z y)))) in (x y z) around 0
1.955 * [taylor]: Taking taylor expansion of (fma x x (- (* 4.0 (* z y)))) in z
1.955 * [taylor]: Rewrote expression to (+ (* x x) (- (* 4.0 (* z y))))
1.955 * [taylor]: Taking taylor expansion of (* x x) in z
1.955 * [taylor]: Taking taylor expansion of x in z
1.955 * [taylor]: Taking taylor expansion of x in z
1.955 * [taylor]: Taking taylor expansion of (- (* 4.0 (* z y))) in z
1.955 * [taylor]: Taking taylor expansion of (* 4.0 (* z y)) in z
1.955 * [taylor]: Taking taylor expansion of 4.0 in z
1.955 * [taylor]: Taking taylor expansion of (* z y) in z
1.955 * [taylor]: Taking taylor expansion of z in z
1.955 * [taylor]: Taking taylor expansion of y in z
1.955 * [taylor]: Taking taylor expansion of (fma x x (- (* 4.0 (* z y)))) in y
1.955 * [taylor]: Rewrote expression to (+ (* x x) (- (* 4.0 (* z y))))
1.955 * [taylor]: Taking taylor expansion of (* x x) in y
1.955 * [taylor]: Taking taylor expansion of x in y
1.955 * [taylor]: Taking taylor expansion of x in y
1.955 * [taylor]: Taking taylor expansion of (- (* 4.0 (* z y))) in y
1.955 * [taylor]: Taking taylor expansion of (* 4.0 (* z y)) in y
1.955 * [taylor]: Taking taylor expansion of 4.0 in y
1.955 * [taylor]: Taking taylor expansion of (* z y) in y
1.955 * [taylor]: Taking taylor expansion of z in y
1.955 * [taylor]: Taking taylor expansion of y in y
1.955 * [taylor]: Taking taylor expansion of (fma x x (- (* 4.0 (* z y)))) in x
1.956 * [taylor]: Rewrote expression to (+ (* x x) (- (* 4.0 (* z y))))
1.956 * [taylor]: Taking taylor expansion of (* x x) in x
1.956 * [taylor]: Taking taylor expansion of x in x
1.956 * [taylor]: Taking taylor expansion of x in x
1.956 * [taylor]: Taking taylor expansion of (- (* 4.0 (* z y))) in x
1.956 * [taylor]: Taking taylor expansion of (* 4.0 (* z y)) in x
1.956 * [taylor]: Taking taylor expansion of 4.0 in x
1.956 * [taylor]: Taking taylor expansion of (* z y) in x
1.956 * [taylor]: Taking taylor expansion of z in x
1.956 * [taylor]: Taking taylor expansion of y in x
1.956 * [taylor]: Taking taylor expansion of (fma x x (- (* 4.0 (* z y)))) in x
1.956 * [taylor]: Rewrote expression to (+ (* x x) (- (* 4.0 (* z y))))
1.956 * [taylor]: Taking taylor expansion of (* x x) in x
1.956 * [taylor]: Taking taylor expansion of x in x
1.956 * [taylor]: Taking taylor expansion of x in x
1.956 * [taylor]: Taking taylor expansion of (- (* 4.0 (* z y))) in x
1.956 * [taylor]: Taking taylor expansion of (* 4.0 (* z y)) in x
1.956 * [taylor]: Taking taylor expansion of 4.0 in x
1.956 * [taylor]: Taking taylor expansion of (* z y) in x
1.956 * [taylor]: Taking taylor expansion of z in x
1.956 * [taylor]: Taking taylor expansion of y in x
1.957 * [taylor]: Taking taylor expansion of (- (* 4.0 (* z y))) in y
1.957 * [taylor]: Taking taylor expansion of (* 4.0 (* z y)) in y
1.957 * [taylor]: Taking taylor expansion of 4.0 in y
1.957 * [taylor]: Taking taylor expansion of (* z y) in y
1.957 * [taylor]: Taking taylor expansion of z in y
1.957 * [taylor]: Taking taylor expansion of y in y
1.957 * [taylor]: Taking taylor expansion of 0 in z
1.958 * [taylor]: Taking taylor expansion of 0 in y
1.958 * [taylor]: Taking taylor expansion of 0 in z
1.959 * [taylor]: Taking taylor expansion of (- (* 4.0 z)) in z
1.959 * [taylor]: Taking taylor expansion of (* 4.0 z) in z
1.959 * [taylor]: Taking taylor expansion of 4.0 in z
1.959 * [taylor]: Taking taylor expansion of z in z
1.961 * [taylor]: Taking taylor expansion of 1 in y
1.961 * [taylor]: Taking taylor expansion of 1 in z
1.961 * [taylor]: Taking taylor expansion of 0 in z
1.963 * [taylor]: Taking taylor expansion of 0 in z
1.966 * [taylor]: Taking taylor expansion of 0 in y
1.966 * [taylor]: Taking taylor expansion of 0 in z
1.966 * [taylor]: Taking taylor expansion of 0 in z
1.966 * [taylor]: Taking taylor expansion of 0 in z
1.968 * [taylor]: Taking taylor expansion of 0 in z
1.968 * [approximate]: Taking taylor expansion of (fma (/ 1 x) (/ 1 x) (- (* 4.0 (/ 1 (* z y))))) in (x y z) around 0
1.968 * [taylor]: Taking taylor expansion of (fma (/ 1 x) (/ 1 x) (- (* 4.0 (/ 1 (* z y))))) in z
1.969 * [taylor]: Rewrote expression to (+ (* (/ 1 x) (/ 1 x)) (- (* 4.0 (/ 1 (* z y)))))
1.969 * [taylor]: Taking taylor expansion of (* (/ 1 x) (/ 1 x)) in z
1.969 * [taylor]: Taking taylor expansion of (/ 1 x) in z
1.969 * [taylor]: Taking taylor expansion of x in z
1.969 * [taylor]: Taking taylor expansion of (/ 1 x) in z
1.969 * [taylor]: Taking taylor expansion of x in z
1.969 * [taylor]: Taking taylor expansion of (- (* 4.0 (/ 1 (* z y)))) in z
1.969 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in z
1.969 * [taylor]: Taking taylor expansion of 4.0 in z
1.969 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in z
1.969 * [taylor]: Taking taylor expansion of (* z y) in z
1.969 * [taylor]: Taking taylor expansion of z in z
1.969 * [taylor]: Taking taylor expansion of y in z
1.969 * [taylor]: Taking taylor expansion of (fma (/ 1 x) (/ 1 x) (- (* 4.0 (/ 1 (* z y))))) in y
1.969 * [taylor]: Rewrote expression to (+ (* (/ 1 x) (/ 1 x)) (- (* 4.0 (/ 1 (* z y)))))
1.969 * [taylor]: Taking taylor expansion of (* (/ 1 x) (/ 1 x)) in y
1.969 * [taylor]: Taking taylor expansion of (/ 1 x) in y
1.969 * [taylor]: Taking taylor expansion of x in y
1.969 * [taylor]: Taking taylor expansion of (/ 1 x) in y
1.969 * [taylor]: Taking taylor expansion of x in y
1.969 * [taylor]: Taking taylor expansion of (- (* 4.0 (/ 1 (* z y)))) in y
1.969 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in y
1.969 * [taylor]: Taking taylor expansion of 4.0 in y
1.969 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in y
1.969 * [taylor]: Taking taylor expansion of (* z y) in y
1.969 * [taylor]: Taking taylor expansion of z in y
1.970 * [taylor]: Taking taylor expansion of y in y
1.970 * [taylor]: Taking taylor expansion of (fma (/ 1 x) (/ 1 x) (- (* 4.0 (/ 1 (* z y))))) in x
1.970 * [taylor]: Rewrote expression to (+ (* (/ 1 x) (/ 1 x)) (- (* 4.0 (/ 1 (* z y)))))
1.970 * [taylor]: Taking taylor expansion of (* (/ 1 x) (/ 1 x)) in x
1.970 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.970 * [taylor]: Taking taylor expansion of x in x
1.970 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.970 * [taylor]: Taking taylor expansion of x in x
1.971 * [taylor]: Taking taylor expansion of (- (* 4.0 (/ 1 (* z y)))) in x
1.971 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in x
1.971 * [taylor]: Taking taylor expansion of 4.0 in x
1.971 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in x
1.971 * [taylor]: Taking taylor expansion of (* z y) in x
1.971 * [taylor]: Taking taylor expansion of z in x
1.971 * [taylor]: Taking taylor expansion of y in x
1.971 * [taylor]: Taking taylor expansion of (fma (/ 1 x) (/ 1 x) (- (* 4.0 (/ 1 (* z y))))) in x
1.971 * [taylor]: Rewrote expression to (+ (* (/ 1 x) (/ 1 x)) (- (* 4.0 (/ 1 (* z y)))))
1.971 * [taylor]: Taking taylor expansion of (* (/ 1 x) (/ 1 x)) in x
1.971 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.971 * [taylor]: Taking taylor expansion of x in x
1.971 * [taylor]: Taking taylor expansion of (/ 1 x) in x
1.971 * [taylor]: Taking taylor expansion of x in x
1.971 * [taylor]: Taking taylor expansion of (- (* 4.0 (/ 1 (* z y)))) in x
1.971 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in x
1.971 * [taylor]: Taking taylor expansion of 4.0 in x
1.972 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in x
1.972 * [taylor]: Taking taylor expansion of (* z y) in x
1.972 * [taylor]: Taking taylor expansion of z in x
1.972 * [taylor]: Taking taylor expansion of y in x
1.972 * [taylor]: Taking taylor expansion of 1 in y
1.974 * [taylor]: Taking taylor expansion of 0 in y
1.974 * [taylor]: Taking taylor expansion of 1 in z
1.975 * [taylor]: Taking taylor expansion of (- (* 4.0 (/ 1 (* z y)))) in y
1.975 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in y
1.975 * [taylor]: Taking taylor expansion of 4.0 in y
1.975 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in y
1.975 * [taylor]: Taking taylor expansion of (* z y) in y
1.975 * [taylor]: Taking taylor expansion of z in y
1.975 * [taylor]: Taking taylor expansion of y in y
1.976 * [taylor]: Taking taylor expansion of (- (* 4.0 (/ 1 z))) in z
1.976 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 z)) in z
1.976 * [taylor]: Taking taylor expansion of 4.0 in z
1.976 * [taylor]: Taking taylor expansion of (/ 1 z) in z
1.976 * [taylor]: Taking taylor expansion of z in z
1.977 * [taylor]: Taking taylor expansion of 0 in z
1.977 * [taylor]: Taking taylor expansion of 0 in z
1.979 * [taylor]: Taking taylor expansion of 0 in y
1.980 * [taylor]: Taking taylor expansion of 0 in z
1.980 * [taylor]: Taking taylor expansion of 0 in z
1.980 * [taylor]: Taking taylor expansion of 0 in z
1.984 * [taylor]: Taking taylor expansion of 0 in y
1.985 * [taylor]: Taking taylor expansion of 0 in z
1.986 * [taylor]: Taking taylor expansion of 0 in z
1.986 * [taylor]: Taking taylor expansion of 0 in z
1.986 * [taylor]: Taking taylor expansion of 0 in z
1.987 * [approximate]: Taking taylor expansion of (fma (/ -1 x) (/ -1 x) (- (* 4.0 (/ 1 (* z y))))) in (x y z) around 0
1.987 * [taylor]: Taking taylor expansion of (fma (/ -1 x) (/ -1 x) (- (* 4.0 (/ 1 (* z y))))) in z
1.987 * [taylor]: Rewrote expression to (+ (* (/ -1 x) (/ -1 x)) (- (* 4.0 (/ 1 (* z y)))))
1.987 * [taylor]: Taking taylor expansion of (* (/ -1 x) (/ -1 x)) in z
1.987 * [taylor]: Taking taylor expansion of (/ -1 x) in z
1.987 * [taylor]: Taking taylor expansion of -1 in z
1.987 * [taylor]: Taking taylor expansion of x in z
1.987 * [taylor]: Taking taylor expansion of (/ -1 x) in z
1.987 * [taylor]: Taking taylor expansion of -1 in z
1.987 * [taylor]: Taking taylor expansion of x in z
1.987 * [taylor]: Taking taylor expansion of (- (* 4.0 (/ 1 (* z y)))) in z
1.987 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in z
1.987 * [taylor]: Taking taylor expansion of 4.0 in z
1.987 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in z
1.987 * [taylor]: Taking taylor expansion of (* z y) in z
1.987 * [taylor]: Taking taylor expansion of z in z
1.987 * [taylor]: Taking taylor expansion of y in z
1.987 * [taylor]: Taking taylor expansion of (fma (/ -1 x) (/ -1 x) (- (* 4.0 (/ 1 (* z y))))) in y
1.988 * [taylor]: Rewrote expression to (+ (* (/ -1 x) (/ -1 x)) (- (* 4.0 (/ 1 (* z y)))))
1.988 * [taylor]: Taking taylor expansion of (* (/ -1 x) (/ -1 x)) in y
1.988 * [taylor]: Taking taylor expansion of (/ -1 x) in y
1.988 * [taylor]: Taking taylor expansion of -1 in y
1.988 * [taylor]: Taking taylor expansion of x in y
1.988 * [taylor]: Taking taylor expansion of (/ -1 x) in y
1.988 * [taylor]: Taking taylor expansion of -1 in y
1.988 * [taylor]: Taking taylor expansion of x in y
1.988 * [taylor]: Taking taylor expansion of (- (* 4.0 (/ 1 (* z y)))) in y
1.988 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in y
1.988 * [taylor]: Taking taylor expansion of 4.0 in y
1.988 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in y
1.988 * [taylor]: Taking taylor expansion of (* z y) in y
1.988 * [taylor]: Taking taylor expansion of z in y
1.988 * [taylor]: Taking taylor expansion of y in y
1.988 * [taylor]: Taking taylor expansion of (fma (/ -1 x) (/ -1 x) (- (* 4.0 (/ 1 (* z y))))) in x
1.988 * [taylor]: Rewrote expression to (+ (* (/ -1 x) (/ -1 x)) (- (* 4.0 (/ 1 (* z y)))))
1.988 * [taylor]: Taking taylor expansion of (* (/ -1 x) (/ -1 x)) in x
1.988 * [taylor]: Taking taylor expansion of (/ -1 x) in x
1.988 * [taylor]: Taking taylor expansion of -1 in x
1.988 * [taylor]: Taking taylor expansion of x in x
1.989 * [taylor]: Taking taylor expansion of (/ -1 x) in x
1.989 * [taylor]: Taking taylor expansion of -1 in x
1.989 * [taylor]: Taking taylor expansion of x in x
1.989 * [taylor]: Taking taylor expansion of (- (* 4.0 (/ 1 (* z y)))) in x
1.989 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in x
1.989 * [taylor]: Taking taylor expansion of 4.0 in x
1.989 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in x
1.989 * [taylor]: Taking taylor expansion of (* z y) in x
1.989 * [taylor]: Taking taylor expansion of z in x
1.989 * [taylor]: Taking taylor expansion of y in x
1.989 * [taylor]: Taking taylor expansion of (fma (/ -1 x) (/ -1 x) (- (* 4.0 (/ 1 (* z y))))) in x
1.989 * [taylor]: Rewrote expression to (+ (* (/ -1 x) (/ -1 x)) (- (* 4.0 (/ 1 (* z y)))))
1.989 * [taylor]: Taking taylor expansion of (* (/ -1 x) (/ -1 x)) in x
1.989 * [taylor]: Taking taylor expansion of (/ -1 x) in x
1.989 * [taylor]: Taking taylor expansion of -1 in x
1.989 * [taylor]: Taking taylor expansion of x in x
1.990 * [taylor]: Taking taylor expansion of (/ -1 x) in x
1.990 * [taylor]: Taking taylor expansion of -1 in x
1.990 * [taylor]: Taking taylor expansion of x in x
1.990 * [taylor]: Taking taylor expansion of (- (* 4.0 (/ 1 (* z y)))) in x
1.990 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in x
1.990 * [taylor]: Taking taylor expansion of 4.0 in x
1.990 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in x
1.990 * [taylor]: Taking taylor expansion of (* z y) in x
1.990 * [taylor]: Taking taylor expansion of z in x
1.990 * [taylor]: Taking taylor expansion of y in x
1.991 * [taylor]: Taking taylor expansion of 1 in y
1.992 * [taylor]: Taking taylor expansion of 0 in y
1.992 * [taylor]: Taking taylor expansion of 1 in z
1.994 * [taylor]: Taking taylor expansion of (- (* 4.0 (/ 1 (* z y)))) in y
1.994 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in y
1.994 * [taylor]: Taking taylor expansion of 4.0 in y
1.994 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in y
1.994 * [taylor]: Taking taylor expansion of (* z y) in y
1.994 * [taylor]: Taking taylor expansion of z in y
1.994 * [taylor]: Taking taylor expansion of y in y
1.995 * [taylor]: Taking taylor expansion of (- (* 4.0 (/ 1 z))) in z
1.995 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 z)) in z
1.995 * [taylor]: Taking taylor expansion of 4.0 in z
1.995 * [taylor]: Taking taylor expansion of (/ 1 z) in z
1.995 * [taylor]: Taking taylor expansion of z in z
1.996 * [taylor]: Taking taylor expansion of 0 in z
1.996 * [taylor]: Taking taylor expansion of 0 in z
1.998 * [taylor]: Taking taylor expansion of 0 in y
1.999 * [taylor]: Taking taylor expansion of 0 in z
1.999 * [taylor]: Taking taylor expansion of 0 in z
1.999 * [taylor]: Taking taylor expansion of 0 in z
2.004 * [taylor]: Taking taylor expansion of 0 in y
2.004 * [taylor]: Taking taylor expansion of 0 in z
2.005 * [taylor]: Taking taylor expansion of 0 in z
2.005 * [taylor]: Taking taylor expansion of 0 in z
2.005 * [taylor]: Taking taylor expansion of 0 in z
2.006 * * * [progress]: simplifying candidates
2.006 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (expm1 (fma x x (- (* (* y 4.0) z))))
  (log1p (fma x x (- (* (* y 4.0) z))))
  (* x x)
  (log (fma x x (- (* (* y 4.0) z))))
  (exp (fma x x (- (* (* y 4.0) z))))
  (* (cbrt (fma x x (- (* (* y 4.0) z)))) (cbrt (fma x x (- (* (* y 4.0) z)))))
  (cbrt (fma x x (- (* (* y 4.0) z))))
  (* (* (fma x x (- (* (* y 4.0) z))) (fma x x (- (* (* y 4.0) z)))) (fma x x (- (* (* y 4.0) z))))
  (sqrt (fma x x (- (* (* y 4.0) z))))
  (sqrt (fma x x (- (* (* y 4.0) z))))
  (- (pow x 2) (* 4.0 (* z y)))
  (- (pow x 2) (* 4.0 (* z y)))
  (- (pow x 2) (* 4.0 (* z y)))
2.007 * * [simplify]: iteration  0 :  23  enodes  (cost  150 )
2.013 * * [simplify]: iteration  1 :  42  enodes  (cost  150 )
2.020 * * [simplify]: iteration  2 :  91  enodes  (cost  132 )
2.040 * * [simplify]: iteration  3 :  318  enodes  (cost  132 )
2.162 * * [simplify]: iteration  4 :  1275  enodes  (cost  132 )
3.330 * * [simplify]: iteration  done :  5000  enodes  (cost  132 )
3.330 * [simplify]: Simplified to:
   (expm1 (fma x x (- (* (* y 4.0) z))))
  (log1p (fma x x (- (* (* y 4.0) z))))
  (* x x)
  (log (fma x x (- (* (* y 4.0) z))))
  (exp (fma x x (- (* (* y 4.0) z))))
  (* (cbrt (fma x x (- (* (* y 4.0) z)))) (cbrt (fma x x (- (* (* y 4.0) z)))))
  (cbrt (fma x x (- (* (* y 4.0) z))))
  (pow (- (pow x 2) (* 4.0 (* z y))) 3)
  (sqrt (fma x x (- (* (* y 4.0) z))))
  (sqrt (fma x x (- (* (* y 4.0) z))))
  (- (pow x 2) (* 4.0 (* z y)))
  (- (pow x 2) (* 4.0 (* z y)))
  (- (pow x 2) (* 4.0 (* z y)))
3.330 * * * [progress]: adding candidates to table
3.366 * [progress]: [Phase 3 of 3] Extracting.
3.368 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (fma x x (- (* (* y 4.0) z)))
3.368 * * [simplify]: iteration  0 :  8  enodes  (cost  9 )
3.369 * * [simplify]: iteration  1 :  14  enodes  (cost  9 )
3.369 * * [simplify]: iteration  2 :  22  enodes  (cost  9 )
3.370 * * [simplify]: iteration  done :  22  enodes  (cost  9 )
3.370 * [simplify]: Simplified to:
   (fma x x (- (* (* y 4.0) z)))
3.999 * [regime-testing]: End program error score: 0.012300577250003598