6.801 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.551 * * * [progress]: [2/2] Setting up program.
0.554 * [progress]: [Phase 2 of 3] Improving.
0.555 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (* x y) (* z t))
0.557 * * [simplify]: iteration  0 :  11  enodes  (cost  3 )
0.558 * * [simplify]: iteration  1 :  18  enodes  (cost  3 )
0.559 * * [simplify]: iteration  2 :  18  enodes  (cost  3 )
0.559 * [simplify]: Simplified to:
   (- (* x y) (* z t))
0.559 * * [progress]: iteration 1 / 4
0.559 * * * [progress]: picking best candidate
0.562 * * * * [pick]: Picked  #<alt (λ (x y z t) (- (* x y) (* z t)))>
0.562 * * * [progress]: localizing error
0.567 * * * [progress]: generating rewritten candidates
0.567 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.571 * * * [progress]: generating series expansions
0.571 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.571 * [approximate]: Taking taylor expansion of (- (* x y) (* t z)) in (x y z t) around 0
0.571 * [taylor]: Taking taylor expansion of (- (* x y) (* t z)) in t
0.571 * [taylor]: Taking taylor expansion of (* x y) in t
0.571 * [taylor]: Taking taylor expansion of x in t
0.571 * [taylor]: Taking taylor expansion of y in t
0.571 * [taylor]: Taking taylor expansion of (* t z) in t
0.571 * [taylor]: Taking taylor expansion of t in t
0.571 * [taylor]: Taking taylor expansion of z in t
0.571 * [taylor]: Taking taylor expansion of (- (* x y) (* t z)) in z
0.571 * [taylor]: Taking taylor expansion of (* x y) in z
0.571 * [taylor]: Taking taylor expansion of x in z
0.571 * [taylor]: Taking taylor expansion of y in z
0.571 * [taylor]: Taking taylor expansion of (* t z) in z
0.571 * [taylor]: Taking taylor expansion of t in z
0.571 * [taylor]: Taking taylor expansion of z in z
0.571 * [taylor]: Taking taylor expansion of (- (* x y) (* t z)) in y
0.571 * [taylor]: Taking taylor expansion of (* x y) in y
0.571 * [taylor]: Taking taylor expansion of x in y
0.571 * [taylor]: Taking taylor expansion of y in y
0.571 * [taylor]: Taking taylor expansion of (* t z) in y
0.571 * [taylor]: Taking taylor expansion of t in y
0.571 * [taylor]: Taking taylor expansion of z in y
0.571 * [taylor]: Taking taylor expansion of (- (* x y) (* t z)) in x
0.571 * [taylor]: Taking taylor expansion of (* x y) in x
0.571 * [taylor]: Taking taylor expansion of x in x
0.571 * [taylor]: Taking taylor expansion of y in x
0.571 * [taylor]: Taking taylor expansion of (* t z) in x
0.571 * [taylor]: Taking taylor expansion of t in x
0.571 * [taylor]: Taking taylor expansion of z in x
0.571 * [taylor]: Taking taylor expansion of (- (* x y) (* t z)) in x
0.571 * [taylor]: Taking taylor expansion of (* x y) in x
0.571 * [taylor]: Taking taylor expansion of x in x
0.571 * [taylor]: Taking taylor expansion of y in x
0.571 * [taylor]: Taking taylor expansion of (* t z) in x
0.571 * [taylor]: Taking taylor expansion of t in x
0.571 * [taylor]: Taking taylor expansion of z in x
0.571 * [taylor]: Taking taylor expansion of (neg (* t z)) in y
0.571 * [taylor]: Taking taylor expansion of (* t z) in y
0.571 * [taylor]: Taking taylor expansion of t in y
0.571 * [taylor]: Taking taylor expansion of z in y
0.572 * [taylor]: Taking taylor expansion of (neg (* t z)) in z
0.572 * [taylor]: Taking taylor expansion of (* t z) in z
0.572 * [taylor]: Taking taylor expansion of t in z
0.572 * [taylor]: Taking taylor expansion of z in z
0.572 * [taylor]: Taking taylor expansion of 0 in t
0.572 * [taylor]: Taking taylor expansion of y in y
0.572 * [taylor]: Taking taylor expansion of 0 in z
0.572 * [taylor]: Taking taylor expansion of 0 in t
0.572 * [taylor]: Taking taylor expansion of 0 in z
0.572 * [taylor]: Taking taylor expansion of 0 in t
0.572 * [taylor]: Taking taylor expansion of (neg t) in t
0.572 * [taylor]: Taking taylor expansion of t in t
0.572 * [taylor]: Taking taylor expansion of 0 in y
0.572 * [taylor]: Taking taylor expansion of 0 in z
0.572 * [taylor]: Taking taylor expansion of 0 in t
0.572 * [approximate]: Taking taylor expansion of (- (/ 1 (* x y)) (/ 1 (* t z))) in (x y z t) around 0
0.572 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (/ 1 (* t z))) in t
0.572 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in t
0.572 * [taylor]: Taking taylor expansion of (* x y) in t
0.572 * [taylor]: Taking taylor expansion of x in t
0.572 * [taylor]: Taking taylor expansion of y in t
0.572 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in t
0.572 * [taylor]: Taking taylor expansion of (* t z) in t
0.572 * [taylor]: Taking taylor expansion of t in t
0.572 * [taylor]: Taking taylor expansion of z in t
0.573 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (/ 1 (* t z))) in z
0.573 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in z
0.573 * [taylor]: Taking taylor expansion of (* x y) in z
0.573 * [taylor]: Taking taylor expansion of x in z
0.573 * [taylor]: Taking taylor expansion of y in z
0.573 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in z
0.573 * [taylor]: Taking taylor expansion of (* t z) in z
0.573 * [taylor]: Taking taylor expansion of t in z
0.573 * [taylor]: Taking taylor expansion of z in z
0.573 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (/ 1 (* t z))) in y
0.573 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
0.573 * [taylor]: Taking taylor expansion of (* x y) in y
0.573 * [taylor]: Taking taylor expansion of x in y
0.573 * [taylor]: Taking taylor expansion of y in y
0.573 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in y
0.573 * [taylor]: Taking taylor expansion of (* t z) in y
0.573 * [taylor]: Taking taylor expansion of t in y
0.573 * [taylor]: Taking taylor expansion of z in y
0.573 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (/ 1 (* t z))) in x
0.573 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.573 * [taylor]: Taking taylor expansion of (* x y) in x
0.573 * [taylor]: Taking taylor expansion of x in x
0.573 * [taylor]: Taking taylor expansion of y in x
0.573 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in x
0.573 * [taylor]: Taking taylor expansion of (* t z) in x
0.573 * [taylor]: Taking taylor expansion of t in x
0.573 * [taylor]: Taking taylor expansion of z in x
0.573 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (/ 1 (* t z))) in x
0.573 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.573 * [taylor]: Taking taylor expansion of (* x y) in x
0.573 * [taylor]: Taking taylor expansion of x in x
0.573 * [taylor]: Taking taylor expansion of y in x
0.573 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in x
0.573 * [taylor]: Taking taylor expansion of (* t z) in x
0.573 * [taylor]: Taking taylor expansion of t in x
0.573 * [taylor]: Taking taylor expansion of z in x
0.573 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.573 * [taylor]: Taking taylor expansion of y in y
0.574 * [taylor]: Taking taylor expansion of 1 in z
0.574 * [taylor]: Taking taylor expansion of (neg (/ 1 (* t z))) in y
0.574 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in y
0.574 * [taylor]: Taking taylor expansion of (* t z) in y
0.574 * [taylor]: Taking taylor expansion of t in y
0.574 * [taylor]: Taking taylor expansion of z in y
0.574 * [taylor]: Taking taylor expansion of 0 in z
0.574 * [taylor]: Taking taylor expansion of 1 in t
0.574 * [taylor]: Taking taylor expansion of 0 in y
0.574 * [taylor]: Taking taylor expansion of (neg (/ 1 (* t z))) in z
0.574 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in z
0.574 * [taylor]: Taking taylor expansion of (* t z) in z
0.574 * [taylor]: Taking taylor expansion of t in z
0.574 * [taylor]: Taking taylor expansion of z in z
0.574 * [taylor]: Taking taylor expansion of (neg (/ 1 t)) in t
0.574 * [taylor]: Taking taylor expansion of (/ 1 t) in t
0.574 * [taylor]: Taking taylor expansion of t in t
0.574 * [taylor]: Taking taylor expansion of 0 in z
0.574 * [taylor]: Taking taylor expansion of 0 in t
0.575 * [taylor]: Taking taylor expansion of 0 in t
0.575 * [taylor]: Taking taylor expansion of 0 in y
0.575 * [taylor]: Taking taylor expansion of 0 in z
0.575 * [taylor]: Taking taylor expansion of 0 in z
0.575 * [taylor]: Taking taylor expansion of 0 in z
0.575 * [taylor]: Taking taylor expansion of 0 in t
0.575 * [taylor]: Taking taylor expansion of 0 in t
0.575 * [taylor]: Taking taylor expansion of 0 in t
0.575 * [taylor]: Taking taylor expansion of 0 in t
0.576 * [taylor]: Taking taylor expansion of 0 in y
0.576 * [taylor]: Taking taylor expansion of 0 in z
0.576 * [taylor]: Taking taylor expansion of 0 in z
0.576 * [taylor]: Taking taylor expansion of 0 in z
0.576 * [taylor]: Taking taylor expansion of 0 in z
0.576 * [taylor]: Taking taylor expansion of 0 in t
0.576 * [taylor]: Taking taylor expansion of 0 in t
0.576 * [taylor]: Taking taylor expansion of 0 in t
0.576 * [taylor]: Taking taylor expansion of 0 in t
0.576 * [taylor]: Taking taylor expansion of 0 in t
0.577 * [taylor]: Taking taylor expansion of 0 in t
0.577 * [taylor]: Taking taylor expansion of 0 in t
0.577 * [approximate]: Taking taylor expansion of (- (/ 1 (* x y)) (/ 1 (* t z))) in (x y z t) around 0
0.577 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (/ 1 (* t z))) in t
0.577 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in t
0.577 * [taylor]: Taking taylor expansion of (* x y) in t
0.577 * [taylor]: Taking taylor expansion of x in t
0.577 * [taylor]: Taking taylor expansion of y in t
0.577 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in t
0.577 * [taylor]: Taking taylor expansion of (* t z) in t
0.577 * [taylor]: Taking taylor expansion of t in t
0.577 * [taylor]: Taking taylor expansion of z in t
0.577 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (/ 1 (* t z))) in z
0.577 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in z
0.577 * [taylor]: Taking taylor expansion of (* x y) in z
0.577 * [taylor]: Taking taylor expansion of x in z
0.577 * [taylor]: Taking taylor expansion of y in z
0.577 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in z
0.577 * [taylor]: Taking taylor expansion of (* t z) in z
0.577 * [taylor]: Taking taylor expansion of t in z
0.577 * [taylor]: Taking taylor expansion of z in z
0.577 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (/ 1 (* t z))) in y
0.577 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
0.577 * [taylor]: Taking taylor expansion of (* x y) in y
0.577 * [taylor]: Taking taylor expansion of x in y
0.577 * [taylor]: Taking taylor expansion of y in y
0.577 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in y
0.578 * [taylor]: Taking taylor expansion of (* t z) in y
0.578 * [taylor]: Taking taylor expansion of t in y
0.578 * [taylor]: Taking taylor expansion of z in y
0.578 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (/ 1 (* t z))) in x
0.578 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.578 * [taylor]: Taking taylor expansion of (* x y) in x
0.578 * [taylor]: Taking taylor expansion of x in x
0.578 * [taylor]: Taking taylor expansion of y in x
0.578 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in x
0.578 * [taylor]: Taking taylor expansion of (* t z) in x
0.578 * [taylor]: Taking taylor expansion of t in x
0.578 * [taylor]: Taking taylor expansion of z in x
0.578 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (/ 1 (* t z))) in x
0.578 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.578 * [taylor]: Taking taylor expansion of (* x y) in x
0.578 * [taylor]: Taking taylor expansion of x in x
0.578 * [taylor]: Taking taylor expansion of y in x
0.578 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in x
0.578 * [taylor]: Taking taylor expansion of (* t z) in x
0.578 * [taylor]: Taking taylor expansion of t in x
0.578 * [taylor]: Taking taylor expansion of z in x
0.578 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.578 * [taylor]: Taking taylor expansion of y in y
0.578 * [taylor]: Taking taylor expansion of 1 in z
0.578 * [taylor]: Taking taylor expansion of (neg (/ 1 (* t z))) in y
0.578 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in y
0.578 * [taylor]: Taking taylor expansion of (* t z) in y
0.578 * [taylor]: Taking taylor expansion of t in y
0.578 * [taylor]: Taking taylor expansion of z in y
0.578 * [taylor]: Taking taylor expansion of 0 in z
0.578 * [taylor]: Taking taylor expansion of 1 in t
0.579 * [taylor]: Taking taylor expansion of 0 in y
0.579 * [taylor]: Taking taylor expansion of (neg (/ 1 (* t z))) in z
0.579 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in z
0.579 * [taylor]: Taking taylor expansion of (* t z) in z
0.579 * [taylor]: Taking taylor expansion of t in z
0.579 * [taylor]: Taking taylor expansion of z in z
0.579 * [taylor]: Taking taylor expansion of (neg (/ 1 t)) in t
0.579 * [taylor]: Taking taylor expansion of (/ 1 t) in t
0.579 * [taylor]: Taking taylor expansion of t in t
0.579 * [taylor]: Taking taylor expansion of 0 in z
0.579 * [taylor]: Taking taylor expansion of 0 in t
0.579 * [taylor]: Taking taylor expansion of 0 in t
0.579 * [taylor]: Taking taylor expansion of 0 in y
0.579 * [taylor]: Taking taylor expansion of 0 in z
0.580 * [taylor]: Taking taylor expansion of 0 in z
0.580 * [taylor]: Taking taylor expansion of 0 in z
0.580 * [taylor]: Taking taylor expansion of 0 in t
0.580 * [taylor]: Taking taylor expansion of 0 in t
0.580 * [taylor]: Taking taylor expansion of 0 in t
0.580 * [taylor]: Taking taylor expansion of 0 in t
0.580 * [taylor]: Taking taylor expansion of 0 in y
0.580 * [taylor]: Taking taylor expansion of 0 in z
0.580 * [taylor]: Taking taylor expansion of 0 in z
0.580 * [taylor]: Taking taylor expansion of 0 in z
0.580 * [taylor]: Taking taylor expansion of 0 in z
0.581 * [taylor]: Taking taylor expansion of 0 in t
0.581 * [taylor]: Taking taylor expansion of 0 in t
0.581 * [taylor]: Taking taylor expansion of 0 in t
0.581 * [taylor]: Taking taylor expansion of 0 in t
0.581 * [taylor]: Taking taylor expansion of 0 in t
0.581 * [taylor]: Taking taylor expansion of 0 in t
0.581 * [taylor]: Taking taylor expansion of 0 in t
0.581 * * * [progress]: simplifying candidates
0.581 * [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))))
  (neg (* z t))
  (- (* (* x y) (* x y)) (* (* z t) (* z t)))
  (+ (* x y) (* z t))
  (neg (* z t))
  0
  (- (* x y) (* t z))
  (- (* x y) (* t z))
0.584 * * [simplify]: iteration  0 :  91  enodes  (cost  78 )
0.586 * * [simplify]: iteration  1 :  285  enodes  (cost  71 )
0.593 * * [simplify]: iteration  2 :  895  enodes  (cost  71 )
0.609 * * [simplify]: iteration  3 :  2136  enodes  (cost  71 )
0.652 * * [simplify]: iteration  4 :  5001  enodes  (cost  71 )
0.653 * [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 (- (* x y) (* t z)) 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)))
  (neg (* z t))
  (- (* (* x y) (* x y)) (* (* z t) (* z t)))
  (+ (* x y) (* z t))
  (neg (* z t))
  0
  (- (* x y) (* t z))
  (- (* x y) (* t z))
0.654 * * * [progress]: adding candidates to table
0.672 * [progress]: [Phase 3 of 3] Extracting.
0.675 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (* x y) (* z t))
0.676 * * [simplify]: iteration  0 :  9  enodes  (cost  3 )
0.676 * * [simplify]: iteration  1 :  9  enodes  (cost  3 )
0.676 * [simplify]: Simplified to:
   (- (* x y) (* z t))
1.927 * [regime-testing]: End program error score: 0.011126390798849856