0.068 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.016 * * * [progress]: [2/2] Setting up program.
0.019 * [progress]: [Phase 2 of 3] Improving.
0.019 * [simplify]: Simplifying:
  (/ (fabs (- a b)) 2.0)
0.019 * [simplify]: Sending expressions to egg_math:
 (/ (fabs (- h1 h0)) 2.0)