0.062 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.029 * * * [progress]: [2/2] Setting up program.
0.031 * [progress]: [Phase 2 of 3] Improving.
0.032 * [simplify]: Simplifying:
  (+ x (/ (- x y) 2.0))
0.032 * [simplify]: Sending expressions to egg_math:
 (+ h1 (/ (- h1 h0) 2.0))