0.387 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.076 * * * [progress]: [2/2] Setting up program.
0.082 * [progress]: [Phase 2 of 3] Improving.
0.082 * [simplify]: Simplifying:
  (- (/ 2.0 (+ 1.0 (exp (* -2.0 x)))) 1.0)