0.052 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.034 * * * [progress]: [2/2] Setting up program.
0.038 * [progress]: [Phase 2 of 3] Improving.
0.038 * [simplify]: Simplifying:
  (/ (- (* x x) (* (* y 4.0) y)) (+ (* x x) (* (* y 4.0) y)))
0.038 * [simplify]: Sending expressions to egg_math:
 (/ (- (* h1 h1) (* (* h0 4.0) h0)) (+ (* h1 h1) (* (* h0 4.0) h0)))