0.038 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.172 * * * [progress]: [2/2] Setting up program.
0.174 * [progress]: [Phase 2 of 3] Improving.
0.174 * [simplify]: Simplifying:
  (- (sin (+ x eps)) (sin x))
0.174 * [simplify]: Sending expressions to egg_math:
 (- (sin (+ h0 h1)) (sin h0))