0.065 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.033 * * * [progress]: [2/2] Setting up program.
0.039 * [progress]: [Phase 2 of 3] Improving.
0.039 * [simplify]: Simplifying:
  (/ (* (* x y) z) (sqrt (- (* z z) (* t a))))