7.785 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.023 * * * [progress]: [2/2] Setting up program.
0.026 * [progress]: [Phase 2 of 3] Improving.
0.026 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (* x x) (* (* y 4.0) z))
0.028 * * [simplify]: iteration  0 :  14  enodes  (cost  4 )
0.029 * * [simplify]: iteration  1 :  32  enodes  (cost  4 )
0.030 * * [simplify]: iteration  2 :  57  enodes  (cost  4 )
0.032 * * [simplify]: iteration  3 :  63  enodes  (cost  4 )
0.033 * * [simplify]: iteration  4 :  63  enodes  (cost  4 )
0.033 * [simplify]: Simplified to:
   (- (* x x) (* (* y 4.0) z))
0.033 * * [progress]: iteration 1 / 4
0.033 * * * [progress]: picking best candidate
0.036 * * * * [pick]: Picked  #<alt (λ (x y z) (- (* x x) (* (* y 4.0) z)))>
0.036 * * * [progress]: localizing error
0.042 * * * [progress]: generating rewritten candidates
0.042 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.048 * * * [progress]: generating series expansions
0.048 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.049 * [approximate]: Taking taylor expansion of (- (pow x 2) (* 4.0 (* z y))) in (x y z) around 0
0.049 * [taylor]: Taking taylor expansion of (- (pow x 2) (* 4.0 (* z y))) in z
0.049 * [taylor]: Taking taylor expansion of (pow x 2) in z
0.049 * [taylor]: Taking taylor expansion of x in z
0.049 * [taylor]: Taking taylor expansion of (* 4.0 (* z y)) in z
0.049 * [taylor]: Taking taylor expansion of 4.0 in z
0.049 * [taylor]: Taking taylor expansion of (* z y) in z
0.049 * [taylor]: Taking taylor expansion of z in z
0.049 * [taylor]: Taking taylor expansion of y in z
0.049 * [taylor]: Taking taylor expansion of (- (pow x 2) (* 4.0 (* z y))) in y
0.049 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.049 * [taylor]: Taking taylor expansion of x in y
0.049 * [taylor]: Taking taylor expansion of (* 4.0 (* z y)) in y
0.049 * [taylor]: Taking taylor expansion of 4.0 in y
0.049 * [taylor]: Taking taylor expansion of (* z y) in y
0.049 * [taylor]: Taking taylor expansion of z in y
0.049 * [taylor]: Taking taylor expansion of y in y
0.049 * [taylor]: Taking taylor expansion of (- (pow x 2) (* 4.0 (* z y))) in x
0.049 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.049 * [taylor]: Taking taylor expansion of x in x
0.049 * [taylor]: Taking taylor expansion of (* 4.0 (* z y)) in x
0.049 * [taylor]: Taking taylor expansion of 4.0 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 (- (pow x 2) (* 4.0 (* z y))) in x
0.049 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.049 * [taylor]: Taking taylor expansion of x in x
0.049 * [taylor]: Taking taylor expansion of (* 4.0 (* z y)) in x
0.049 * [taylor]: Taking taylor expansion of 4.0 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 (neg (* 4.0 (* z y))) in y
0.049 * [taylor]: Taking taylor expansion of (* 4.0 (* z y)) in y
0.049 * [taylor]: Taking taylor expansion of 4.0 in y
0.049 * [taylor]: Taking taylor expansion of (* z y) in y
0.049 * [taylor]: Taking taylor expansion of z in y
0.049 * [taylor]: Taking taylor expansion of y in y
0.049 * [taylor]: Taking taylor expansion of 0 in z
0.050 * [taylor]: Taking taylor expansion of 0 in y
0.050 * [taylor]: Taking taylor expansion of 0 in z
0.050 * [taylor]: Taking taylor expansion of (neg (* 4.0 z)) in z
0.050 * [taylor]: Taking taylor expansion of (* 4.0 z) in z
0.050 * [taylor]: Taking taylor expansion of 4.0 in z
0.050 * [taylor]: Taking taylor expansion of z in z
0.050 * [taylor]: Taking taylor expansion of 1 in y
0.050 * [taylor]: Taking taylor expansion of 1 in z
0.050 * [taylor]: Taking taylor expansion of 0 in z
0.050 * [taylor]: Taking taylor expansion of 0 in z
0.051 * [taylor]: Taking taylor expansion of 0 in y
0.051 * [taylor]: Taking taylor expansion of 0 in z
0.051 * [taylor]: Taking taylor expansion of 0 in z
0.051 * [taylor]: Taking taylor expansion of 0 in z
0.051 * [taylor]: Taking taylor expansion of 0 in z
0.051 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in (x y z) around 0
0.051 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in z
0.051 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in z
0.051 * [taylor]: Taking taylor expansion of (pow x 2) in z
0.051 * [taylor]: Taking taylor expansion of x in z
0.051 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in z
0.051 * [taylor]: Taking taylor expansion of 4.0 in z
0.051 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in z
0.051 * [taylor]: Taking taylor expansion of (* z y) in z
0.051 * [taylor]: Taking taylor expansion of z in z
0.051 * [taylor]: Taking taylor expansion of y in z
0.051 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in y
0.051 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.051 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.051 * [taylor]: Taking taylor expansion of x in y
0.052 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in y
0.052 * [taylor]: Taking taylor expansion of 4.0 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 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in x
0.052 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.052 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.052 * [taylor]: Taking taylor expansion of x in x
0.052 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in x
0.052 * [taylor]: Taking taylor expansion of 4.0 in x
0.052 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in x
0.052 * [taylor]: Taking taylor expansion of (* z y) in x
0.052 * [taylor]: Taking taylor expansion of z in x
0.052 * [taylor]: Taking taylor expansion of y in x
0.052 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in x
0.052 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.052 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.052 * [taylor]: Taking taylor expansion of x in x
0.052 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in x
0.052 * [taylor]: Taking taylor expansion of 4.0 in x
0.052 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in x
0.052 * [taylor]: Taking taylor expansion of (* z y) in x
0.052 * [taylor]: Taking taylor expansion of z in x
0.052 * [taylor]: Taking taylor expansion of y in x
0.052 * [taylor]: Taking taylor expansion of 1 in y
0.052 * [taylor]: Taking taylor expansion of 0 in y
0.052 * [taylor]: Taking taylor expansion of 1 in z
0.052 * [taylor]: Taking taylor expansion of (neg (* 4.0 (/ 1 (* z y)))) in y
0.052 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in y
0.052 * [taylor]: Taking taylor expansion of 4.0 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
0.053 * [taylor]: Taking taylor expansion of z in y
0.053 * [taylor]: Taking taylor expansion of y in y
0.053 * [taylor]: Taking taylor expansion of (neg (* 4.0 (/ 1 z))) in z
0.053 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 z)) in z
0.053 * [taylor]: Taking taylor expansion of 4.0 in z
0.053 * [taylor]: Taking taylor expansion of (/ 1 z) in z
0.053 * [taylor]: Taking taylor expansion of z in z
0.053 * [taylor]: Taking taylor expansion of 0 in z
0.053 * [taylor]: Taking taylor expansion of 0 in z
0.053 * [taylor]: Taking taylor expansion of 0 in y
0.053 * [taylor]: Taking taylor expansion of 0 in z
0.053 * [taylor]: Taking taylor expansion of 0 in z
0.053 * [taylor]: Taking taylor expansion of 0 in z
0.054 * [taylor]: Taking taylor expansion of 0 in y
0.054 * [taylor]: Taking taylor expansion of 0 in z
0.054 * [taylor]: Taking taylor expansion of 0 in z
0.054 * [taylor]: Taking taylor expansion of 0 in z
0.054 * [taylor]: Taking taylor expansion of 0 in z
0.054 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in (x y z) around 0
0.054 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in z
0.054 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in z
0.054 * [taylor]: Taking taylor expansion of (pow x 2) in z
0.054 * [taylor]: Taking taylor expansion of x in z
0.054 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in z
0.054 * [taylor]: Taking taylor expansion of 4.0 in z
0.054 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in z
0.054 * [taylor]: Taking taylor expansion of (* z y) in z
0.054 * [taylor]: Taking taylor expansion of z in z
0.054 * [taylor]: Taking taylor expansion of y in z
0.054 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in y
0.054 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.054 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.054 * [taylor]: Taking taylor expansion of x in y
0.055 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in y
0.055 * [taylor]: Taking taylor expansion of 4.0 in y
0.055 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in y
0.055 * [taylor]: Taking taylor expansion of (* z y) in y
0.055 * [taylor]: Taking taylor expansion of z in y
0.055 * [taylor]: Taking taylor expansion of y in y
0.055 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in x
0.055 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.055 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.055 * [taylor]: Taking taylor expansion of x in x
0.055 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in x
0.055 * [taylor]: Taking taylor expansion of 4.0 in x
0.055 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in x
0.055 * [taylor]: Taking taylor expansion of (* z y) in x
0.055 * [taylor]: Taking taylor expansion of z in x
0.055 * [taylor]: Taking taylor expansion of y in x
0.055 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in x
0.055 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.055 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.055 * [taylor]: Taking taylor expansion of x in x
0.055 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in x
0.055 * [taylor]: Taking taylor expansion of 4.0 in x
0.055 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in x
0.055 * [taylor]: Taking taylor expansion of (* z y) in x
0.055 * [taylor]: Taking taylor expansion of z in x
0.055 * [taylor]: Taking taylor expansion of y in x
0.055 * [taylor]: Taking taylor expansion of 1 in y
0.055 * [taylor]: Taking taylor expansion of 0 in y
0.055 * [taylor]: Taking taylor expansion of 1 in z
0.055 * [taylor]: Taking taylor expansion of (neg (* 4.0 (/ 1 (* z y)))) in y
0.055 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in y
0.055 * [taylor]: Taking taylor expansion of 4.0 in y
0.055 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in y
0.056 * [taylor]: Taking taylor expansion of (* z y) in y
0.056 * [taylor]: Taking taylor expansion of z in y
0.056 * [taylor]: Taking taylor expansion of y in y
0.056 * [taylor]: Taking taylor expansion of (neg (* 4.0 (/ 1 z))) in z
0.056 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 z)) in z
0.056 * [taylor]: Taking taylor expansion of 4.0 in z
0.056 * [taylor]: Taking taylor expansion of (/ 1 z) in z
0.056 * [taylor]: Taking taylor expansion of z in z
0.056 * [taylor]: Taking taylor expansion of 0 in z
0.056 * [taylor]: Taking taylor expansion of 0 in z
0.056 * [taylor]: Taking taylor expansion of 0 in y
0.056 * [taylor]: Taking taylor expansion of 0 in z
0.056 * [taylor]: Taking taylor expansion of 0 in z
0.056 * [taylor]: Taking taylor expansion of 0 in z
0.057 * [taylor]: Taking taylor expansion of 0 in y
0.057 * [taylor]: Taking taylor expansion of 0 in z
0.057 * [taylor]: Taking taylor expansion of 0 in z
0.057 * [taylor]: Taking taylor expansion of 0 in z
0.057 * [taylor]: Taking taylor expansion of 0 in z
0.057 * * * [progress]: simplifying candidates
0.057 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (/ (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))))
  (neg (* (* y 4.0) z))
  (- (* (* x x) (* x x)) (* (* (* y 4.0) z) (* (* y 4.0) z)))
  (+ (* x x) (* (* y 4.0) z))
  (neg (* (* 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)))
0.060 * * [simplify]: iteration  0 :  99  enodes  (cost  103 )
0.062 * * [simplify]: iteration  1 :  400  enodes  (cost  93 )
0.071 * * [simplify]: iteration  2 :  1856  enodes  (cost  93 )
0.127 * * [simplify]: iteration  3 :  5002  enodes  (cost  93 )
0.128 * [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 (- (* 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))
  (+ (* (* (* y 4.0) z) (+ (* (* y 4.0) z) (pow x 2))) (* (* x x) (* x x)))
  (neg (* (* y 4.0) z))
  (+ (neg (* (* (* y 4.0) z) (* (* y 4.0) z))) (pow x 4))
  (+ (* x x) (* (* y 4.0) z))
  (neg (* (* y 4.0) z))
  (- (* x x) (* (* y 4.0) z))
  (- (* x x) (* (* y 4.0) z))
  (- (* x x) (* (* y 4.0) z))
0.128 * * * [progress]: adding candidates to table
0.144 * [progress]: [Phase 3 of 3] Extracting.
0.146 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (* x x) (* (* y 4.0) z))
0.147 * * [simplify]: iteration  0 :  10  enodes  (cost  4 )
0.147 * * [simplify]: iteration  1 :  10  enodes  (cost  4 )
0.147 * [simplify]: Simplified to:
   (- (* x x) (* (* y 4.0) z))
1.180 * [regime-testing]: End program error score: 0.0713839229903738