0.066 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.156 * * * [progress]: [2/2] Setting up program.
0.166 * [progress]: [Phase 2 of 3] Improving.
0.166 * [simplify]: Simplifying:
  (* (* (* -2.0 J) (cos (/ K 2.0))) (sqrt (+ 1.0 (pow (/ U (* (* 2.0 J) (cos (/ K 2.0)))) 2.0))))