1.620 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.052 * * * [progress]: [2/2] Setting up program.
0.056 * [progress]: [Phase 2 of 3] Improving.
0.056 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (* (* (* -2.0 J) (cos (/ K 2.0))) (sqrt (+ 1.0 (pow (/ U (* (* 2.0 J) (cos (/ K 2.0)))) 2.0))))
0.057 * * [simplify]: iteration  0 :  17  enodes  (cost  24 )
0.059 * * [simplify]: iteration  1 :  34  enodes  (cost  24 )
0.063 * * [simplify]: iteration  2 :  72  enodes  (cost  24 )
0.079 * * [simplify]: iteration  3 :  130  enodes  (cost  24 )
0.096 * * [simplify]: iteration  4 :  181  enodes  (cost  24 )
0.129 * * [simplify]: iteration  5 :  302  enodes  (cost  24 )