0.268 * [progress]: [Phase 1 of 3] Setting up.
0.002 * * * [progress]: [1/2] Preparing points
0.095 * * * [progress]: [2/2] Setting up program.
0.101 * [progress]: [Phase 2 of 3] Improving.
0.102 * [simplify]: Simplifying:
  (+ x (/ (* y (- z t)) (- z a)))
0.102 * [simplify]: Sending expressions to egg_math:
 (+ h4 (/ (* h3 (- h1 h2)) (- h1 h0)))