0.236 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.025 * * * [progress]: [2/2] Setting up program.
0.027 * [progress]: [Phase 2 of 3] Improving.
0.028 * [simplify]: Simplifying:
  (/ (+ x y) (- x y))
0.028 * [simplify]: Sending expressions to egg_math:
 (/ (+ h1 h0) (- h1 h0))