0.185 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.081 * * * [progress]: [2/2] Setting up program.
0.085 * [progress]: [Phase 2 of 3] Improving.
0.086 * [simplify]: Simplifying:
  (- 1.0 (log (- 1.0 (/ (- x y) (- 1.0 y)))))
0.086 * [simplify]: Sending expressions to egg_math:
 (- 1.0 (log (- 1.0 (/ (- h1 h0) (- 1.0 h0)))))