7.972 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.021 * * * [progress]: [2/2] Setting up program.
0.023 * [progress]: [Phase 2 of 3] Improving.
0.023 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (* x x) (* (* y 4.0) z))
0.025 * * [simplify]: iteration  0 :  14  enodes  (cost  4 )
0.027 * * [simplify]: iteration  1 :  32  enodes  (cost  4 )
0.028 * * [simplify]: iteration  2 :  57  enodes  (cost  4 )
0.030 * * [simplify]: iteration  3 :  63  enodes  (cost  4 )
0.032 * * [simplify]: iteration  4 :  63  enodes  (cost  4 )
0.032 * [simplify]: Simplified to:
   (- (* x x) (* (* y 4.0) z))
0.032 * * [progress]: iteration 1 / 4
0.032 * * * [progress]: picking best candidate
0.033 * * * * [pick]: Picked  #<alt (λ (x y z) (- (* x x) (* (* y 4.0) z)))>
0.033 * * * [progress]: localizing error
0.041 * * * [progress]: generating rewritten candidates
0.041 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.048 * * * [progress]: generating series expansions
0.048 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.048 * [approximate]: Taking taylor expansion of (- (pow x 2) (* 4.0 (* z y))) in (x y z) around 0
0.048 * [taylor]: Taking taylor expansion of (- (pow x 2) (* 4.0 (* z y))) in z
0.048 * [taylor]: Taking taylor expansion of (pow x 2) in z
0.048 * [taylor]: Taking taylor expansion of x in z
0.048 * [taylor]: Taking taylor expansion of (* 4.0 (* z y)) in z
0.048 * [taylor]: Taking taylor expansion of 4.0 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 (- (pow x 2) (* 4.0 (* z y))) in y
0.048 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.048 * [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
0.050 * [taylor]: Taking taylor expansion of 4.0 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
0.051 * [taylor]: Taking taylor expansion of 0 in z
0.052 * [taylor]: Taking taylor expansion of 0 in y
0.052 * [taylor]: Taking taylor expansion of 0 in z
0.053 * [taylor]: Taking taylor expansion of (neg (* 4.0 z)) in z
0.053 * [taylor]: Taking taylor expansion of (* 4.0 z) in z
0.053 * [taylor]: Taking taylor expansion of 4.0 in z
0.053 * [taylor]: Taking taylor expansion of z in z
0.056 * [taylor]: Taking taylor expansion of 1 in y
0.056 * [taylor]: Taking taylor expansion of 1 in z
0.056 * [taylor]: Taking taylor expansion of 0 in z
0.058 * [taylor]: Taking taylor expansion of 0 in z
0.064 * [taylor]: Taking taylor expansion of 0 in y
0.064 * [taylor]: Taking taylor expansion of 0 in z
0.064 * [taylor]: Taking taylor expansion of 0 in z
0.064 * [taylor]: Taking taylor expansion of 0 in z
0.066 * [taylor]: Taking taylor expansion of 0 in z
0.068 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in (x y z) around 0
0.068 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in z
0.068 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in z
0.068 * [taylor]: Taking taylor expansion of (pow x 2) in z
0.068 * [taylor]: Taking taylor expansion of x in z
0.068 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in z
0.068 * [taylor]: Taking taylor expansion of 4.0 in z
0.068 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in z
0.068 * [taylor]: Taking taylor expansion of (* z y) in z
0.068 * [taylor]: Taking taylor expansion of z in z
0.068 * [taylor]: Taking taylor expansion of y in z
0.069 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in y
0.069 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.069 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.069 * [taylor]: Taking taylor expansion of x in y
0.069 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in y
0.069 * [taylor]: Taking taylor expansion of 4.0 in y
0.069 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in y
0.069 * [taylor]: Taking taylor expansion of (* z y) in y
0.069 * [taylor]: Taking taylor expansion of z in y
0.069 * [taylor]: Taking taylor expansion of y in y
0.070 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in x
0.070 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.070 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.070 * [taylor]: Taking taylor expansion of x in x
0.070 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in x
0.070 * [taylor]: Taking taylor expansion of 4.0 in x
0.070 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in x
0.070 * [taylor]: Taking taylor expansion of (* z y) in x
0.070 * [taylor]: Taking taylor expansion of z in x
0.070 * [taylor]: Taking taylor expansion of y in x
0.070 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in x
0.071 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.071 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.071 * [taylor]: Taking taylor expansion of x in x
0.071 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in x
0.071 * [taylor]: Taking taylor expansion of 4.0 in x
0.071 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in x
0.071 * [taylor]: Taking taylor expansion of (* z y) in x
0.071 * [taylor]: Taking taylor expansion of z in x
0.071 * [taylor]: Taking taylor expansion of y in x
0.071 * [taylor]: Taking taylor expansion of 1 in y
0.072 * [taylor]: Taking taylor expansion of 0 in y
0.073 * [taylor]: Taking taylor expansion of 1 in z
0.074 * [taylor]: Taking taylor expansion of (neg (* 4.0 (/ 1 (* z y)))) in y
0.074 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in y
0.074 * [taylor]: Taking taylor expansion of 4.0 in y
0.074 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in y
0.074 * [taylor]: Taking taylor expansion of (* z y) in y
0.074 * [taylor]: Taking taylor expansion of z in y
0.074 * [taylor]: Taking taylor expansion of y in y
0.074 * [taylor]: Taking taylor expansion of (neg (* 4.0 (/ 1 z))) in z
0.074 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 z)) in z
0.074 * [taylor]: Taking taylor expansion of 4.0 in z
0.074 * [taylor]: Taking taylor expansion of (/ 1 z) in z
0.074 * [taylor]: Taking taylor expansion of z in z
0.075 * [taylor]: Taking taylor expansion of 0 in z
0.075 * [taylor]: Taking taylor expansion of 0 in z
0.077 * [taylor]: Taking taylor expansion of 0 in y
0.078 * [taylor]: Taking taylor expansion of 0 in z
0.078 * [taylor]: Taking taylor expansion of 0 in z
0.078 * [taylor]: Taking taylor expansion of 0 in z
0.082 * [taylor]: Taking taylor expansion of 0 in y
0.082 * [taylor]: Taking taylor expansion of 0 in z
0.083 * [taylor]: Taking taylor expansion of 0 in z
0.083 * [taylor]: Taking taylor expansion of 0 in z
0.083 * [taylor]: Taking taylor expansion of 0 in z
0.084 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in (x y z) around 0
0.084 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in z
0.084 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in z
0.084 * [taylor]: Taking taylor expansion of (pow x 2) in z
0.084 * [taylor]: Taking taylor expansion of x in z
0.084 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in z
0.084 * [taylor]: Taking taylor expansion of 4.0 in z
0.084 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in z
0.084 * [taylor]: Taking taylor expansion of (* z y) in z
0.084 * [taylor]: Taking taylor expansion of z in z
0.084 * [taylor]: Taking taylor expansion of y in z
0.084 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in y
0.084 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.085 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.085 * [taylor]: Taking taylor expansion of x in y
0.085 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in y
0.085 * [taylor]: Taking taylor expansion of 4.0 in y
0.085 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in y
0.085 * [taylor]: Taking taylor expansion of (* z y) in y
0.085 * [taylor]: Taking taylor expansion of z in y
0.085 * [taylor]: Taking taylor expansion of y in y
0.085 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in x
0.085 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.085 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.085 * [taylor]: Taking taylor expansion of x in x
0.086 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in x
0.086 * [taylor]: Taking taylor expansion of 4.0 in x
0.086 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in x
0.086 * [taylor]: Taking taylor expansion of (* z y) in x
0.086 * [taylor]: Taking taylor expansion of z in x
0.086 * [taylor]: Taking taylor expansion of y in x
0.086 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (* 4.0 (/ 1 (* z y)))) in x
0.086 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.086 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.086 * [taylor]: Taking taylor expansion of x in x
0.086 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in x
0.086 * [taylor]: Taking taylor expansion of 4.0 in x
0.086 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in x
0.086 * [taylor]: Taking taylor expansion of (* z y) in x
0.086 * [taylor]: Taking taylor expansion of z in x
0.086 * [taylor]: Taking taylor expansion of y in x
0.087 * [taylor]: Taking taylor expansion of 1 in y
0.088 * [taylor]: Taking taylor expansion of 0 in y
0.088 * [taylor]: Taking taylor expansion of 1 in z
0.089 * [taylor]: Taking taylor expansion of (neg (* 4.0 (/ 1 (* z y)))) in y
0.089 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 (* z y))) in y
0.089 * [taylor]: Taking taylor expansion of 4.0 in y
0.089 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in y
0.089 * [taylor]: Taking taylor expansion of (* z y) in y
0.089 * [taylor]: Taking taylor expansion of z in y
0.089 * [taylor]: Taking taylor expansion of y in y
0.089 * [taylor]: Taking taylor expansion of (neg (* 4.0 (/ 1 z))) in z
0.089 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 z)) in z
0.089 * [taylor]: Taking taylor expansion of 4.0 in z
0.089 * [taylor]: Taking taylor expansion of (/ 1 z) in z
0.089 * [taylor]: Taking taylor expansion of z in z
0.090 * [taylor]: Taking taylor expansion of 0 in z
0.091 * [taylor]: Taking taylor expansion of 0 in z
0.092 * [taylor]: Taking taylor expansion of 0 in y
0.093 * [taylor]: Taking taylor expansion of 0 in z
0.094 * [taylor]: Taking taylor expansion of 0 in z
0.094 * [taylor]: Taking taylor expansion of 0 in z
0.097 * [taylor]: Taking taylor expansion of 0 in y
0.097 * [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
0.099 * [taylor]: Taking taylor expansion of 0 in z
0.102 * * * [progress]: simplifying candidates
0.102 * [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)))
0.105 * * [simplify]: iteration  0 :  99  enodes  (cost  103 )
0.108 * * [simplify]: iteration  1 :  400  enodes  (cost  93 )
0.117 * * [simplify]: iteration  2 :  1856  enodes  (cost  93 )
0.164 * * [simplify]: iteration  3 :  5002  enodes  (cost  93 )
0.165 * [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))
0.165 * * * [progress]: adding candidates to table
0.185 * [progress]: [Phase 3 of 3] Extracting.
0.187 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (* x x) (* (* y 4.0) z))
0.187 * * [simplify]: iteration  0 :  10  enodes  (cost  4 )
0.188 * * [simplify]: iteration  1 :  10  enodes  (cost  4 )
0.188 * [simplify]: Simplified to:
   (- (* x x) (* (* y 4.0) z))
0.809 * [regime-testing]: End program error score: 0.025185577149473348