11.991 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.019 * * * [progress]: [2/2] Setting up program.
0.021 * [progress]: [Phase 2 of 3] Improving.
0.022 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ (* x y) (* z t))
0.024 * * [simplify]: iteration  0 :  10  enodes  (cost  3 )
0.025 * * [simplify]: iteration  1 :  10  enodes  (cost  3 )
0.025 * [simplify]: Simplified to:
   (+ (* x y) (* z t))
0.026 * * [progress]: iteration 1 / 4
0.026 * * * [progress]: picking best candidate
0.027 * * * * [pick]: Picked  #<alt (λ (x y z t) (+ (* x y) (* z t)))>
0.027 * * * [progress]: localizing error
0.032 * * * [progress]: generating rewritten candidates
0.032 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.039 * * * [progress]: generating series expansions
0.039 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.039 * [approximate]: Taking taylor expansion of (+ (* t z) (* x y)) in (x y z t) around 0
0.039 * [taylor]: Taking taylor expansion of (+ (* t z) (* x y)) in t
0.039 * [taylor]: Taking taylor expansion of (* t z) in t
0.039 * [taylor]: Taking taylor expansion of t in t
0.039 * [taylor]: Taking taylor expansion of z in t
0.039 * [taylor]: Taking taylor expansion of (* x y) in t
0.039 * [taylor]: Taking taylor expansion of x in t
0.039 * [taylor]: Taking taylor expansion of y in t
0.039 * [taylor]: Taking taylor expansion of (+ (* t z) (* x y)) in z
0.039 * [taylor]: Taking taylor expansion of (* t z) in z
0.039 * [taylor]: Taking taylor expansion of t in z
0.039 * [taylor]: Taking taylor expansion of z in z
0.039 * [taylor]: Taking taylor expansion of (* x y) in z
0.039 * [taylor]: Taking taylor expansion of x in z
0.039 * [taylor]: Taking taylor expansion of y in z
0.040 * [taylor]: Taking taylor expansion of (+ (* t z) (* x y)) in y
0.040 * [taylor]: Taking taylor expansion of (* t z) in y
0.040 * [taylor]: Taking taylor expansion of t in y
0.040 * [taylor]: Taking taylor expansion of z in y
0.040 * [taylor]: Taking taylor expansion of (* x y) in y
0.040 * [taylor]: Taking taylor expansion of x in y
0.040 * [taylor]: Taking taylor expansion of y in y
0.040 * [taylor]: Taking taylor expansion of (+ (* t z) (* x y)) in x
0.040 * [taylor]: Taking taylor expansion of (* t z) in x
0.040 * [taylor]: Taking taylor expansion of t in x
0.040 * [taylor]: Taking taylor expansion of z in x
0.040 * [taylor]: Taking taylor expansion of (* x y) in x
0.040 * [taylor]: Taking taylor expansion of x in x
0.040 * [taylor]: Taking taylor expansion of y in x
0.040 * [taylor]: Taking taylor expansion of (+ (* t z) (* x y)) in x
0.040 * [taylor]: Taking taylor expansion of (* t z) in x
0.040 * [taylor]: Taking taylor expansion of t in x
0.040 * [taylor]: Taking taylor expansion of z in x
0.040 * [taylor]: Taking taylor expansion of (* x y) in x
0.040 * [taylor]: Taking taylor expansion of x in x
0.040 * [taylor]: Taking taylor expansion of y in x
0.040 * [taylor]: Taking taylor expansion of (* t z) in y
0.040 * [taylor]: Taking taylor expansion of t in y
0.040 * [taylor]: Taking taylor expansion of z in y
0.040 * [taylor]: Taking taylor expansion of (* t z) in z
0.040 * [taylor]: Taking taylor expansion of t in z
0.040 * [taylor]: Taking taylor expansion of z in z
0.040 * [taylor]: Taking taylor expansion of 0 in t
0.041 * [taylor]: Taking taylor expansion of y in y
0.041 * [taylor]: Taking taylor expansion of 0 in z
0.041 * [taylor]: Taking taylor expansion of 0 in t
0.041 * [taylor]: Taking taylor expansion of 0 in z
0.041 * [taylor]: Taking taylor expansion of 0 in t
0.041 * [taylor]: Taking taylor expansion of t in t
0.042 * [taylor]: Taking taylor expansion of 0 in y
0.042 * [taylor]: Taking taylor expansion of 0 in z
0.042 * [taylor]: Taking taylor expansion of 0 in t
0.043 * [approximate]: Taking taylor expansion of (+ (/ 1 (* t z)) (/ 1 (* x y))) in (x y z t) around 0
0.043 * [taylor]: Taking taylor expansion of (+ (/ 1 (* t z)) (/ 1 (* x y))) in t
0.043 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in t
0.043 * [taylor]: Taking taylor expansion of (* t z) in t
0.043 * [taylor]: Taking taylor expansion of t in t
0.043 * [taylor]: Taking taylor expansion of z in t
0.043 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in t
0.043 * [taylor]: Taking taylor expansion of (* x y) in t
0.043 * [taylor]: Taking taylor expansion of x in t
0.043 * [taylor]: Taking taylor expansion of y in t
0.043 * [taylor]: Taking taylor expansion of (+ (/ 1 (* t z)) (/ 1 (* x y))) in z
0.043 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in z
0.043 * [taylor]: Taking taylor expansion of (* t z) in z
0.043 * [taylor]: Taking taylor expansion of t in z
0.043 * [taylor]: Taking taylor expansion of z in z
0.043 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in z
0.043 * [taylor]: Taking taylor expansion of (* x y) in z
0.044 * [taylor]: Taking taylor expansion of x in z
0.044 * [taylor]: Taking taylor expansion of y in z
0.044 * [taylor]: Taking taylor expansion of (+ (/ 1 (* t z)) (/ 1 (* x y))) in y
0.044 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in y
0.044 * [taylor]: Taking taylor expansion of (* t z) in y
0.044 * [taylor]: Taking taylor expansion of t in y
0.044 * [taylor]: Taking taylor expansion of z in y
0.044 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
0.044 * [taylor]: Taking taylor expansion of (* x y) in y
0.044 * [taylor]: Taking taylor expansion of x in y
0.044 * [taylor]: Taking taylor expansion of y in y
0.044 * [taylor]: Taking taylor expansion of (+ (/ 1 (* t z)) (/ 1 (* x y))) in x
0.044 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in x
0.044 * [taylor]: Taking taylor expansion of (* t z) in x
0.044 * [taylor]: Taking taylor expansion of t in x
0.044 * [taylor]: Taking taylor expansion of z in x
0.044 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.044 * [taylor]: Taking taylor expansion of (* x y) in x
0.044 * [taylor]: Taking taylor expansion of x in x
0.044 * [taylor]: Taking taylor expansion of y in x
0.045 * [taylor]: Taking taylor expansion of (+ (/ 1 (* t z)) (/ 1 (* x y))) in x
0.045 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in x
0.045 * [taylor]: Taking taylor expansion of (* t z) in x
0.045 * [taylor]: Taking taylor expansion of t in x
0.045 * [taylor]: Taking taylor expansion of z in x
0.045 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.045 * [taylor]: Taking taylor expansion of (* x y) in x
0.045 * [taylor]: Taking taylor expansion of x in x
0.045 * [taylor]: Taking taylor expansion of y in x
0.045 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.045 * [taylor]: Taking taylor expansion of y in y
0.045 * [taylor]: Taking taylor expansion of 1 in z
0.046 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in y
0.046 * [taylor]: Taking taylor expansion of (* t z) in y
0.046 * [taylor]: Taking taylor expansion of t in y
0.046 * [taylor]: Taking taylor expansion of z in y
0.047 * [taylor]: Taking taylor expansion of 0 in z
0.047 * [taylor]: Taking taylor expansion of 1 in t
0.048 * [taylor]: Taking taylor expansion of 0 in y
0.048 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in z
0.048 * [taylor]: Taking taylor expansion of (* t z) in z
0.048 * [taylor]: Taking taylor expansion of t in z
0.048 * [taylor]: Taking taylor expansion of z in z
0.048 * [taylor]: Taking taylor expansion of (/ 1 t) in t
0.048 * [taylor]: Taking taylor expansion of t in t
0.049 * [taylor]: Taking taylor expansion of 0 in z
0.049 * [taylor]: Taking taylor expansion of 0 in t
0.049 * [taylor]: Taking taylor expansion of 0 in t
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
0.052 * [taylor]: Taking taylor expansion of 0 in z
0.052 * [taylor]: Taking taylor expansion of 0 in t
0.052 * [taylor]: Taking taylor expansion of 0 in t
0.052 * [taylor]: Taking taylor expansion of 0 in t
0.052 * [taylor]: Taking taylor expansion of 0 in t
0.055 * [taylor]: Taking taylor expansion of 0 in y
0.055 * [taylor]: Taking taylor expansion of 0 in z
0.055 * [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
0.056 * [taylor]: Taking taylor expansion of 0 in t
0.056 * [taylor]: Taking taylor expansion of 0 in t
0.056 * [taylor]: Taking taylor expansion of 0 in t
0.057 * [taylor]: Taking taylor expansion of 0 in t
0.057 * [taylor]: Taking taylor expansion of 0 in t
0.057 * [taylor]: Taking taylor expansion of 0 in t
0.057 * [taylor]: Taking taylor expansion of 0 in t
0.058 * [approximate]: Taking taylor expansion of (+ (/ 1 (* t z)) (/ 1 (* x y))) in (x y z t) around 0
0.058 * [taylor]: Taking taylor expansion of (+ (/ 1 (* t z)) (/ 1 (* x y))) in t
0.058 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in t
0.058 * [taylor]: Taking taylor expansion of (* t z) in t
0.058 * [taylor]: Taking taylor expansion of t in t
0.058 * [taylor]: Taking taylor expansion of z in t
0.058 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in t
0.058 * [taylor]: Taking taylor expansion of (* x y) in t
0.058 * [taylor]: Taking taylor expansion of x in t
0.058 * [taylor]: Taking taylor expansion of y in t
0.058 * [taylor]: Taking taylor expansion of (+ (/ 1 (* t z)) (/ 1 (* x y))) in z
0.058 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in z
0.058 * [taylor]: Taking taylor expansion of (* t z) in z
0.058 * [taylor]: Taking taylor expansion of t in z
0.058 * [taylor]: Taking taylor expansion of z in z
0.059 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in z
0.059 * [taylor]: Taking taylor expansion of (* x y) in z
0.059 * [taylor]: Taking taylor expansion of x in z
0.059 * [taylor]: Taking taylor expansion of y in z
0.059 * [taylor]: Taking taylor expansion of (+ (/ 1 (* t z)) (/ 1 (* x y))) in y
0.059 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in y
0.059 * [taylor]: Taking taylor expansion of (* t z) in y
0.059 * [taylor]: Taking taylor expansion of t in y
0.059 * [taylor]: Taking taylor expansion of z in y
0.059 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
0.059 * [taylor]: Taking taylor expansion of (* x y) in y
0.059 * [taylor]: Taking taylor expansion of x in y
0.059 * [taylor]: Taking taylor expansion of y in y
0.059 * [taylor]: Taking taylor expansion of (+ (/ 1 (* t z)) (/ 1 (* x y))) in x
0.059 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in x
0.059 * [taylor]: Taking taylor expansion of (* t z) in x
0.059 * [taylor]: Taking taylor expansion of t in x
0.059 * [taylor]: Taking taylor expansion of z in x
0.059 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.059 * [taylor]: Taking taylor expansion of (* x y) in x
0.059 * [taylor]: Taking taylor expansion of x in x
0.059 * [taylor]: Taking taylor expansion of y in x
0.060 * [taylor]: Taking taylor expansion of (+ (/ 1 (* t z)) (/ 1 (* x y))) in x
0.060 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in x
0.060 * [taylor]: Taking taylor expansion of (* t z) in x
0.060 * [taylor]: Taking taylor expansion of t in x
0.060 * [taylor]: Taking taylor expansion of z in x
0.060 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.060 * [taylor]: Taking taylor expansion of (* x y) in x
0.060 * [taylor]: Taking taylor expansion of x in x
0.060 * [taylor]: Taking taylor expansion of y in x
0.060 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.060 * [taylor]: Taking taylor expansion of y in y
0.060 * [taylor]: Taking taylor expansion of 1 in z
0.061 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in y
0.061 * [taylor]: Taking taylor expansion of (* t z) in y
0.061 * [taylor]: Taking taylor expansion of t in y
0.061 * [taylor]: Taking taylor expansion of z in y
0.062 * [taylor]: Taking taylor expansion of 0 in z
0.062 * [taylor]: Taking taylor expansion of 1 in t
0.063 * [taylor]: Taking taylor expansion of 0 in y
0.063 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in z
0.063 * [taylor]: Taking taylor expansion of (* t z) in z
0.063 * [taylor]: Taking taylor expansion of t in z
0.063 * [taylor]: Taking taylor expansion of z in z
0.063 * [taylor]: Taking taylor expansion of (/ 1 t) in t
0.063 * [taylor]: Taking taylor expansion of t in t
0.064 * [taylor]: Taking taylor expansion of 0 in z
0.064 * [taylor]: Taking taylor expansion of 0 in t
0.064 * [taylor]: Taking taylor expansion of 0 in t
0.066 * [taylor]: Taking taylor expansion of 0 in y
0.066 * [taylor]: Taking taylor expansion of 0 in z
0.067 * [taylor]: Taking taylor expansion of 0 in z
0.067 * [taylor]: Taking taylor expansion of 0 in z
0.068 * [taylor]: Taking taylor expansion of 0 in t
0.068 * [taylor]: Taking taylor expansion of 0 in t
0.068 * [taylor]: Taking taylor expansion of 0 in t
0.068 * [taylor]: Taking taylor expansion of 0 in t
0.070 * [taylor]: Taking taylor expansion of 0 in y
0.070 * [taylor]: Taking taylor expansion of 0 in z
0.070 * [taylor]: Taking taylor expansion of 0 in z
0.071 * [taylor]: Taking taylor expansion of 0 in z
0.071 * [taylor]: Taking taylor expansion of 0 in z
0.071 * [taylor]: Taking taylor expansion of 0 in t
0.071 * [taylor]: Taking taylor expansion of 0 in t
0.071 * [taylor]: Taking taylor expansion of 0 in t
0.072 * [taylor]: Taking taylor expansion of 0 in t
0.072 * [taylor]: Taking taylor expansion of 0 in t
0.072 * [taylor]: Taking taylor expansion of 0 in t
0.072 * [taylor]: Taking taylor expansion of 0 in t
0.073 * * * [progress]: simplifying candidates
0.073 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* (exp (* x y)) (exp (* z t)))
  (log (+ (* x y) (* z t)))
  (exp (+ (* x y) (* z t)))
  (* (cbrt (+ (* x y) (* z t))) (cbrt (+ (* x y) (* z t))))
  (cbrt (+ (* x y) (* z t)))
  (* (* (+ (* x y) (* z t)) (+ (* x y) (* z t))) (+ (* x y) (* z t)))
  (sqrt (+ (* x y) (* z t)))
  (sqrt (+ (* x y) (* z t)))
  (+ (pow (* x y) 3) (pow (* z t) 3))
  (+ (* (* x y) (* x y)) (- (* (* z t) (* z t)) (* (* x y) (* z t))))
  (- (* (* x y) (* x y)) (* (* z t) (* z t)))
  (- (* x y) (* z t))
  0
  (+ (* t z) (* x y))
  (+ (* t z) (* x y))
0.076 * * [simplify]: iteration  0 :  100  enodes  (cost  74 )
0.079 * * [simplify]: iteration  1 :  363  enodes  (cost  67 )
0.088 * * [simplify]: iteration  2 :  1051  enodes  (cost  67 )
0.113 * * [simplify]: iteration  3 :  2931  enodes  (cost  67 )
0.195 * * [simplify]: iteration  4 :  5001  enodes  (cost  67 )
0.195 * [simplify]: Simplified to:
   (exp (+ (* x y) (* z t)))
  (log (+ (* x y) (* z t)))
  (exp (+ (* x y) (* z t)))
  (* (cbrt (+ (* x y) (* z t))) (cbrt (+ (* x y) (* z t))))
  (cbrt (+ (* x y) (* z t)))
  (pow (+ (* t z) (* x y)) 3)
  (sqrt (+ (* x y) (* z t)))
  (sqrt (+ (* x y) (* z t)))
  (+ (pow (* x y) 3) (pow (* z t) 3))
  (+ (* (* z t) (- (* z t) (* x y))) (* (* x y) (* x y)))
  (- (* (* x y) (* x y)) (* (* z t) (* z t)))
  (- (* x y) (* z t))
  0
  (+ (* t z) (* x y))
  (+ (* t z) (* x y))
0.195 * * * [progress]: adding candidates to table
0.218 * [progress]: [Phase 3 of 3] Extracting.
0.220 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ (* x y) (* z t))
0.221 * * [simplify]: iteration  0 :  10  enodes  (cost  3 )
0.221 * * [simplify]: iteration  1 :  10  enodes  (cost  3 )
0.221 * [simplify]: Simplified to:
   (+ (* x y) (* z t))
0.826 * [regime-testing]: End program error score: 0.011376422052756595