5.278 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.018 * * * [progress]: [2/2] Setting up program.
0.020 * [progress]: [Phase 2 of 3] Improving.
0.020 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (* x x) (* (* y 4.0) z))
0.021 * * [simplify]: iteration  0 :  8  enodes  (cost  9 )
0.022 * * [simplify]: iteration  1 :  14  enodes  (cost  9 )
0.024 * * [simplify]: iteration  2 :  31  enodes  (cost  9 )
0.028 * * [simplify]: iteration  3 :  56  enodes  (cost  9 )
0.035 * * [simplify]: iteration  4 :  58  enodes  (cost  9 )
0.043 * * [simplify]: iteration  done :  58  enodes  (cost  9 )
0.043 * [simplify]: Simplified to:
   (- (* x x) (* (* y 4.0) z))
0.043 * * [progress]: iteration 1 / 4
0.043 * * * [progress]: picking best candidate
0.045 * * * * [pick]: Picked  #<alt (λ (x y z) (- (* x x) (* (* y 4.0) z)))>
0.045 * * * [progress]: localizing error
0.054 * * * [progress]: generating rewritten candidates
0.055 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.058 * * * [progress]: generating series expansions
0.058 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.058 * [approximate]: Taking taylor expansion of (- (pow x 2) (* 4.0 (* z y))) in (x y z) around 0
0.058 * [taylor]: Taking taylor expansion of (- (pow x 2) (* 4.0 (* z y))) in z
0.058 * [taylor]: Taking taylor expansion of (pow x 2) in z
0.058 * [taylor]: Taking taylor expansion of x in z
0.058 * [taylor]: Taking taylor expansion of (* 4.0 (* z y)) in z
0.058 * [taylor]: Taking taylor expansion of 4.0 in z
0.058 * [taylor]: Taking taylor expansion of (* z y) in z
0.058 * [taylor]: Taking taylor expansion of z in z
0.058 * [taylor]: Taking taylor expansion of y in z
0.058 * [taylor]: Taking taylor expansion of (- (pow x 2) (* 4.0 (* z y))) in y
0.058 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.058 * [taylor]: Taking taylor expansion of x in y
0.058 * [taylor]: Taking taylor expansion of (* 4.0 (* z y)) in y
0.058 * [taylor]: Taking taylor expansion of 4.0 in y
0.058 * [taylor]: Taking taylor expansion of (* z y) in y
0.058 * [taylor]: Taking taylor expansion of z in y
0.058 * [taylor]: Taking taylor expansion of y in y
0.058 * [taylor]: Taking taylor expansion of (- (pow x 2) (* 4.0 (* z y))) in x
0.058 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.058 * [taylor]: Taking taylor expansion of x in x
0.058 * [taylor]: Taking taylor expansion of (* 4.0 (* z y)) in x
0.058 * [taylor]: Taking taylor expansion of 4.0 in x
0.058 * [taylor]: Taking taylor expansion of (* z y) in x
0.058 * [taylor]: Taking taylor expansion of z in x
0.058 * [taylor]: Taking taylor expansion of y in x
0.058 * [taylor]: Taking taylor expansion of (- (pow x 2) (* 4.0 (* z y))) in x
0.058 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.058 * [taylor]: Taking taylor expansion of x in x
0.058 * [taylor]: Taking taylor expansion of (* 4.0 (* z y)) in x
0.058 * [taylor]: Taking taylor expansion of 4.0 in x
0.058 * [taylor]: Taking taylor expansion of (* z y) in x
0.058 * [taylor]: Taking taylor expansion of z in x
0.058 * [taylor]: Taking taylor expansion of y in x
0.059 * [taylor]: Taking taylor expansion of (- (* 4.0 (* z y))) 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
0.060 * [taylor]: Taking taylor expansion of 0 in z
0.061 * [taylor]: Taking taylor expansion of 0 in y
0.061 * [taylor]: Taking taylor expansion of 0 in z
0.061 * [taylor]: Taking taylor expansion of (- (* 4.0 z)) in z
0.061 * [taylor]: Taking taylor expansion of (* 4.0 z) in z
0.061 * [taylor]: Taking taylor expansion of 4.0 in z
0.061 * [taylor]: Taking taylor expansion of z in z
0.064 * [taylor]: Taking taylor expansion of 1 in y
0.064 * [taylor]: Taking taylor expansion of 1 in z
0.064 * [taylor]: Taking taylor expansion of 0 in z
0.065 * [taylor]: Taking taylor expansion of 0 in z
0.068 * [taylor]: Taking taylor expansion of 0 in y
0.069 * [taylor]: Taking taylor expansion of 0 in z
0.069 * [taylor]: Taking taylor expansion of 0 in z
0.069 * [taylor]: Taking taylor expansion of 0 in z
0.070 * [taylor]: Taking taylor expansion of 0 in z
0.071 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in (x y z) around 0
0.071 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in z
0.071 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in z
0.071 * [taylor]: Taking taylor expansion of (pow x 2) in z
0.071 * [taylor]: Taking taylor expansion of x in z
0.071 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in z
0.071 * [taylor]: Taking taylor expansion of 4.0 in z
0.071 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in z
0.071 * [taylor]: Taking taylor expansion of (* z y) in z
0.071 * [taylor]: Taking taylor expansion of z in z
0.071 * [taylor]: Taking taylor expansion of y in z
0.072 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in y
0.072 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.072 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.072 * [taylor]: Taking taylor expansion of x in y
0.072 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in y
0.072 * [taylor]: Taking taylor expansion of 4.0 in y
0.072 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in y
0.072 * [taylor]: Taking taylor expansion of (* z y) in y
0.072 * [taylor]: Taking taylor expansion of z in y
0.072 * [taylor]: Taking taylor expansion of y in y
0.072 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in x
0.072 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.072 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.072 * [taylor]: Taking taylor expansion of x in x
0.073 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in x
0.073 * [taylor]: Taking taylor expansion of 4.0 in x
0.073 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in x
0.073 * [taylor]: Taking taylor expansion of (* z y) in x
0.073 * [taylor]: Taking taylor expansion of z in x
0.073 * [taylor]: Taking taylor expansion of y in x
0.073 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in x
0.073 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.073 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.073 * [taylor]: Taking taylor expansion of x in x
0.074 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in x
0.074 * [taylor]: Taking taylor expansion of 4.0 in x
0.074 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in x
0.074 * [taylor]: Taking taylor expansion of (* z y) in x
0.074 * [taylor]: Taking taylor expansion of z in x
0.074 * [taylor]: Taking taylor expansion of y in x
0.074 * [taylor]: Taking taylor expansion of 1 in y
0.075 * [taylor]: Taking taylor expansion of 0 in y
0.075 * [taylor]: Taking taylor expansion of 1 in z
0.076 * [taylor]: Taking taylor expansion of (- (* 4.0 (/ 1 (* z y)))) in y
0.076 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in y
0.077 * [taylor]: Taking taylor expansion of 4.0 in y
0.077 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in y
0.077 * [taylor]: Taking taylor expansion of (* z y) in y
0.077 * [taylor]: Taking taylor expansion of z in y
0.077 * [taylor]: Taking taylor expansion of y in y
0.077 * [taylor]: Taking taylor expansion of (- (* 4.0 (/ 1 z))) in z
0.077 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 z)) in z
0.077 * [taylor]: Taking taylor expansion of 4.0 in z
0.077 * [taylor]: Taking taylor expansion of (/ 1 z) in z
0.077 * [taylor]: Taking taylor expansion of z in z
0.078 * [taylor]: Taking taylor expansion of 0 in z
0.078 * [taylor]: Taking taylor expansion of 0 in z
0.080 * [taylor]: Taking taylor expansion of 0 in y
0.081 * [taylor]: Taking taylor expansion of 0 in z
0.081 * [taylor]: Taking taylor expansion of 0 in z
0.081 * [taylor]: Taking taylor expansion of 0 in z
0.085 * [taylor]: Taking taylor expansion of 0 in y
0.085 * [taylor]: Taking taylor expansion of 0 in z
0.086 * [taylor]: Taking taylor expansion of 0 in z
0.087 * [taylor]: Taking taylor expansion of 0 in z
0.087 * [taylor]: Taking taylor expansion of 0 in z
0.087 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in (x y z) around 0
0.087 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in z
0.087 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in z
0.087 * [taylor]: Taking taylor expansion of (pow x 2) in z
0.087 * [taylor]: Taking taylor expansion of x in z
0.088 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in z
0.088 * [taylor]: Taking taylor expansion of 4.0 in z
0.088 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in z
0.088 * [taylor]: Taking taylor expansion of (* z y) in z
0.088 * [taylor]: Taking taylor expansion of z in z
0.088 * [taylor]: Taking taylor expansion of y in z
0.088 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in y
0.088 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.088 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.088 * [taylor]: Taking taylor expansion of x in y
0.088 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in y
0.088 * [taylor]: Taking taylor expansion of 4.0 in y
0.088 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in y
0.088 * [taylor]: Taking taylor expansion of (* z y) in y
0.088 * [taylor]: Taking taylor expansion of z in y
0.088 * [taylor]: Taking taylor expansion of y in y
0.089 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in x
0.089 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.089 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.089 * [taylor]: Taking taylor expansion of x in x
0.089 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in x
0.089 * [taylor]: Taking taylor expansion of 4.0 in x
0.089 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in x
0.089 * [taylor]: Taking taylor expansion of (* z y) in x
0.089 * [taylor]: Taking taylor expansion of z in x
0.089 * [taylor]: Taking taylor expansion of y in x
0.089 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in x
0.090 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.090 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.090 * [taylor]: Taking taylor expansion of x in x
0.090 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in x
0.090 * [taylor]: Taking taylor expansion of 4.0 in x
0.090 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in x
0.090 * [taylor]: Taking taylor expansion of (* z y) in x
0.090 * [taylor]: Taking taylor expansion of z in x
0.090 * [taylor]: Taking taylor expansion of y in x
0.091 * [taylor]: Taking taylor expansion of 1 in y
0.092 * [taylor]: Taking taylor expansion of 0 in y
0.092 * [taylor]: Taking taylor expansion of 1 in z
0.093 * [taylor]: Taking taylor expansion of (- (* 4.0 (/ 1 (* z y)))) in y
0.093 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in y
0.093 * [taylor]: Taking taylor expansion of 4.0 in y
0.093 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in y
0.093 * [taylor]: Taking taylor expansion of (* z y) in y
0.093 * [taylor]: Taking taylor expansion of z in y
0.093 * [taylor]: Taking taylor expansion of y in y
0.094 * [taylor]: Taking taylor expansion of (- (* 4.0 (/ 1 z))) in z
0.094 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 z)) in z
0.094 * [taylor]: Taking taylor expansion of 4.0 in z
0.094 * [taylor]: Taking taylor expansion of (/ 1 z) in z
0.094 * [taylor]: Taking taylor expansion of z in z
0.095 * [taylor]: Taking taylor expansion of 0 in z
0.095 * [taylor]: Taking taylor expansion of 0 in z
0.097 * [taylor]: Taking taylor expansion of 0 in y
0.098 * [taylor]: Taking taylor expansion of 0 in z
0.098 * [taylor]: Taking taylor expansion of 0 in z
0.098 * [taylor]: Taking taylor expansion of 0 in z
0.102 * [taylor]: Taking taylor expansion of 0 in y
0.102 * [taylor]: Taking taylor expansion of 0 in z
0.103 * [taylor]: Taking taylor expansion of 0 in z
0.103 * [taylor]: Taking taylor expansion of 0 in z
0.103 * [taylor]: Taking taylor expansion of 0 in z
0.104 * * * [progress]: simplifying candidates
0.104 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (/ (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)))
0.106 * * [simplify]: iteration  0 :  35  enodes  (cost  220 )
0.112 * * [simplify]: iteration  1 :  100  enodes  (cost  213 )
0.142 * * [simplify]: iteration  2 :  368  enodes  (cost  185 )
0.266 * * [simplify]: iteration  3 :  1534  enodes  (cost  185 )
1.173 * * [simplify]: iteration  done :  5001  enodes  (cost  185 )
1.173 * [simplify]: Simplified to:
   (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 (- (pow x 2) (* 4.0 (* z y))) 3)
  (sqrt (- (* x x) (* (* y 4.0) z)))
  (sqrt (- (* x x) (* (* y 4.0) z)))
  (- (pow x 6) (pow (* (* y 4.0) z) 3))
  (+ (pow x 4) (* (* (* y 4.0) z) (+ (* x x) (* (* y 4.0) z))))
  (- (* 4.0 (* z y)))
  (- (pow x 4) (* (* (* y 4.0) z) (* (* y 4.0) z)))
  (+ (* x x) (* (* y 4.0) z))
  (- (* 4.0 (* z y)))
  (- (pow x 2) (* 4.0 (* z y)))
  (- (pow x 2) (* 4.0 (* z y)))
  (- (pow x 2) (* 4.0 (* z y)))
1.174 * * * [progress]: adding candidates to table
1.204 * [progress]: [Phase 3 of 3] Extracting.
1.208 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (* x x) (* (* y 4.0) z))
1.209 * * [simplify]: iteration  0 :  8  enodes  (cost  9 )
1.209 * * [simplify]: iteration  1 :  10  enodes  (cost  9 )
1.209 * * [simplify]: iteration  done :  10  enodes  (cost  9 )
1.209 * [simplify]: Simplified to:
   (- (* x x) (* (* y 4.0) z))
1.990 * [regime-testing]: End program error score: 0.025503187898487312