8.593 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.034 * * * [progress]: [2/2] Setting up program.
0.036 * [progress]: [Phase 2 of 3] Improving.
0.036 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (* x x) (* (* y 4.0) z))
0.039 * * [simplify]: iteration  0 :  15  enodes  (cost  4 )
0.040 * * [simplify]: iteration  1 :  33  enodes  (cost  4 )
0.041 * * [simplify]: iteration  2 :  64  enodes  (cost  4 )
0.043 * * [simplify]: iteration  3 :  79  enodes  (cost  4 )
0.045 * * [simplify]: iteration  4 :  79  enodes  (cost  4 )
0.045 * [simplify]: Simplified to:
   (- (* x x) (* (* y 4.0) z))
0.045 * * [progress]: iteration 1 / 4
0.045 * * * [progress]: picking best candidate
0.046 * * * * [pick]: Picked  #<alt (λ (x y z) (- (* x x) (* (* y 4.0) z)))>
0.046 * * * [progress]: localizing error
0.052 * * * [progress]: generating rewritten candidates
0.052 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.059 * * * [progress]: generating series expansions
0.059 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.059 * [approximate]: Taking taylor expansion of (- (pow x 2) (* 4.0 (* z y))) in (x y z) around 0
0.059 * [taylor]: Taking taylor expansion of (- (pow x 2) (* 4.0 (* z y))) in z
0.059 * [taylor]: Taking taylor expansion of (pow x 2) in z
0.059 * [taylor]: Taking taylor expansion of x in z
0.059 * [taylor]: Taking taylor expansion of (* 4.0 (* z y)) in z
0.059 * [taylor]: Taking taylor expansion of 4.0 in z
0.059 * [taylor]: Taking taylor expansion of (* z y) in z
0.059 * [taylor]: Taking taylor expansion of z in z
0.059 * [taylor]: Taking taylor expansion of y in z
0.059 * [taylor]: Taking taylor expansion of (- (pow x 2) (* 4.0 (* z y))) in y
0.059 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.059 * [taylor]: Taking taylor expansion of x in y
0.059 * [taylor]: Taking taylor expansion of (* 4.0 (* z y)) in y
0.059 * [taylor]: Taking taylor expansion of 4.0 in y
0.059 * [taylor]: Taking taylor expansion of (* z y) in y
0.059 * [taylor]: Taking taylor expansion of z in y
0.059 * [taylor]: Taking taylor expansion of y in y
0.059 * [taylor]: Taking taylor expansion of (- (pow x 2) (* 4.0 (* z y))) in x
0.060 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.060 * [taylor]: Taking taylor expansion of x in x
0.060 * [taylor]: Taking taylor expansion of (* 4.0 (* z y)) in x
0.060 * [taylor]: Taking taylor expansion of 4.0 in x
0.060 * [taylor]: Taking taylor expansion of (* z y) in x
0.060 * [taylor]: Taking taylor expansion of z in x
0.060 * [taylor]: Taking taylor expansion of y in x
0.060 * [taylor]: Taking taylor expansion of (- (pow x 2) (* 4.0 (* z y))) in x
0.060 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.060 * [taylor]: Taking taylor expansion of x in x
0.060 * [taylor]: Taking taylor expansion of (* 4.0 (* z y)) in x
0.060 * [taylor]: Taking taylor expansion of 4.0 in x
0.060 * [taylor]: Taking taylor expansion of (* z y) in x
0.060 * [taylor]: Taking taylor expansion of z in x
0.060 * [taylor]: Taking taylor expansion of y in x
0.060 * [taylor]: Taking taylor expansion of (- (* 4.0 (* z y))) in y
0.060 * [taylor]: Taking taylor expansion of (* 4.0 (* z y)) in y
0.060 * [taylor]: Taking taylor expansion of 4.0 in y
0.060 * [taylor]: Taking taylor expansion of (* z y) in y
0.060 * [taylor]: Taking taylor expansion of z in y
0.060 * [taylor]: Taking taylor expansion of y in y
0.061 * [taylor]: Taking taylor expansion of 0 in z
0.063 * [taylor]: Taking taylor expansion of 0 in y
0.063 * [taylor]: Taking taylor expansion of 0 in z
0.063 * [taylor]: Taking taylor expansion of (- (* 4.0 z)) in z
0.063 * [taylor]: Taking taylor expansion of (* 4.0 z) in z
0.064 * [taylor]: Taking taylor expansion of 4.0 in z
0.064 * [taylor]: Taking taylor expansion of z in z
0.067 * [taylor]: Taking taylor expansion of 1 in y
0.067 * [taylor]: Taking taylor expansion of 1 in z
0.067 * [taylor]: Taking taylor expansion of 0 in z
0.069 * [taylor]: Taking taylor expansion of 0 in z
0.074 * [taylor]: Taking taylor expansion of 0 in y
0.074 * [taylor]: Taking taylor expansion of 0 in z
0.074 * [taylor]: Taking taylor expansion of 0 in z
0.074 * [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
0.079 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in y
0.079 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.079 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.079 * [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
0.080 * [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 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in x
0.081 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.081 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.081 * [taylor]: Taking taylor expansion of x in x
0.081 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in x
0.081 * [taylor]: Taking taylor expansion of 4.0 in x
0.081 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in x
0.081 * [taylor]: Taking taylor expansion of (* z y) in x
0.082 * [taylor]: Taking taylor expansion of z in x
0.082 * [taylor]: Taking taylor expansion of y in x
0.082 * [taylor]: Taking taylor expansion of 1 in y
0.084 * [taylor]: Taking taylor expansion of 0 in y
0.084 * [taylor]: Taking taylor expansion of 1 in z
0.086 * [taylor]: Taking taylor expansion of (- (* 4.0 (/ 1 (* z y)))) in y
0.086 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in y
0.086 * [taylor]: Taking taylor expansion of 4.0 in y
0.086 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in y
0.086 * [taylor]: Taking taylor expansion of (* z y) in y
0.086 * [taylor]: Taking taylor expansion of z in y
0.086 * [taylor]: Taking taylor expansion of y in y
0.087 * [taylor]: Taking taylor expansion of (- (* 4.0 (/ 1 z))) in z
0.087 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 z)) in z
0.087 * [taylor]: Taking taylor expansion of 4.0 in z
0.087 * [taylor]: Taking taylor expansion of (/ 1 z) in z
0.087 * [taylor]: Taking taylor expansion of z in z
0.088 * [taylor]: Taking taylor expansion of 0 in z
0.088 * [taylor]: Taking taylor expansion of 0 in z
0.091 * [taylor]: Taking taylor expansion of 0 in y
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
0.099 * [taylor]: Taking taylor expansion of 0 in y
0.099 * [taylor]: Taking taylor expansion of 0 in z
0.101 * [taylor]: Taking taylor expansion of 0 in z
0.101 * [taylor]: Taking taylor expansion of 0 in z
0.102 * [taylor]: Taking taylor expansion of 0 in z
0.103 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in (x y z) around 0
0.103 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in z
0.103 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in z
0.103 * [taylor]: Taking taylor expansion of (pow x 2) in z
0.103 * [taylor]: Taking taylor expansion of x in z
0.103 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in z
0.103 * [taylor]: Taking taylor expansion of 4.0 in z
0.103 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in z
0.103 * [taylor]: Taking taylor expansion of (* z y) in z
0.103 * [taylor]: Taking taylor expansion of z in z
0.103 * [taylor]: Taking taylor expansion of y in z
0.104 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in y
0.104 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.104 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.104 * [taylor]: Taking taylor expansion of x in y
0.104 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in y
0.104 * [taylor]: Taking taylor expansion of 4.0 in y
0.104 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in y
0.104 * [taylor]: Taking taylor expansion of (* z y) in y
0.104 * [taylor]: Taking taylor expansion of z in y
0.104 * [taylor]: Taking taylor expansion of y in y
0.105 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in x
0.105 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.105 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.105 * [taylor]: Taking taylor expansion of x in x
0.106 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in x
0.106 * [taylor]: Taking taylor expansion of 4.0 in x
0.106 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in x
0.106 * [taylor]: Taking taylor expansion of (* z y) in x
0.106 * [taylor]: Taking taylor expansion of z in x
0.106 * [taylor]: Taking taylor expansion of y in x
0.106 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in x
0.106 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.106 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.106 * [taylor]: Taking taylor expansion of x in x
0.107 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in x
0.107 * [taylor]: Taking taylor expansion of 4.0 in x
0.107 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in x
0.107 * [taylor]: Taking taylor expansion of (* z y) in x
0.107 * [taylor]: Taking taylor expansion of z in x
0.107 * [taylor]: Taking taylor expansion of y in x
0.108 * [taylor]: Taking taylor expansion of 1 in y
0.109 * [taylor]: Taking taylor expansion of 0 in y
0.109 * [taylor]: Taking taylor expansion of 1 in z
0.115 * [taylor]: Taking taylor expansion of (- (* 4.0 (/ 1 (* z y)))) in y
0.115 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in y
0.115 * [taylor]: Taking taylor expansion of 4.0 in y
0.115 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in y
0.116 * [taylor]: Taking taylor expansion of (* z y) in y
0.116 * [taylor]: Taking taylor expansion of z in y
0.116 * [taylor]: Taking taylor expansion of y in y
0.116 * [taylor]: Taking taylor expansion of (- (* 4.0 (/ 1 z))) in z
0.116 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 z)) in z
0.116 * [taylor]: Taking taylor expansion of 4.0 in z
0.116 * [taylor]: Taking taylor expansion of (/ 1 z) in z
0.116 * [taylor]: Taking taylor expansion of z in z
0.118 * [taylor]: Taking taylor expansion of 0 in z
0.118 * [taylor]: Taking taylor expansion of 0 in z
0.121 * [taylor]: Taking taylor expansion of 0 in y
0.123 * [taylor]: Taking taylor expansion of 0 in z
0.123 * [taylor]: Taking taylor expansion of 0 in z
0.123 * [taylor]: Taking taylor expansion of 0 in z
0.129 * [taylor]: Taking taylor expansion of 0 in y
0.129 * [taylor]: Taking taylor expansion of 0 in z
0.131 * [taylor]: Taking taylor expansion of 0 in z
0.131 * [taylor]: Taking taylor expansion of 0 in z
0.131 * [taylor]: Taking taylor expansion of 0 in z
0.132 * * * [progress]: simplifying candidates
0.133 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (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)))
0.138 * * [simplify]: iteration  0 :  113  enodes  (cost  123 )
0.142 * * [simplify]: iteration  1 :  540  enodes  (cost  111 )
0.155 * * [simplify]: iteration  2 :  2732  enodes  (cost  108 )
0.211 * * [simplify]: iteration  3 :  5001  enodes  (cost  104 )
0.212 * [simplify]: Simplified to:
   (- (* x x) (* (* y 4.0) z))
  0
  (expm1 (- (* x x) (* (* y 4.0) z)))
  (log1p (- (* x x) (* (* y 4.0) z)))
  (- (* (* y 4.0) z))
  (exp (- (* x x) (* (* 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)))
  (pow (- (* x x) (* (* y 4.0) z)) 3)
  (sqrt (- (* x x) (* (* y 4.0) z)))
  (sqrt (- (* x x) (* (* y 4.0) z)))
  (- (pow (* x x) 3) (pow (* (* y 4.0) z) 3))
  (fma y (* (* 4.0 z) (fma x x (* (* y 4.0) z))) (pow x 4))
  (- (* (* y 4.0) z))
  (fma (- (* (* y 4.0) (* y 4.0))) (* z z) (pow x 4))
  (fma x x (* (* y 4.0) z))
  (- (* (* y 4.0) z))
  (- (* x x) (* (* y 4.0) z))
  (- (* x x) (* (* y 4.0) z))
  (- (* x x) (* (* y 4.0) z))
0.212 * * * [progress]: adding candidates to table
0.240 * [progress]: [Phase 3 of 3] Extracting.
0.241 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (* x x) (* (* y 4.0) z))
0.242 * * [simplify]: iteration  0 :  10  enodes  (cost  4 )
0.242 * * [simplify]: iteration  1 :  10  enodes  (cost  4 )
0.242 * [simplify]: Simplified to:
   (- (* x x) (* (* y 4.0) z))
0.902 * [regime-testing]: End program error score: 0.023502937867233405