1.347 * [progress]: [Phase 1 of 3] Setting up.
0.003 * * * [progress]: [1/2] Preparing points
0.428 * * * [progress]: [2/2] Setting up program.
0.433 * [progress]: [Phase 2 of 3] Improving.
0.436 * [simplify]: Simplifying:
  (sqrt (/ (- (exp (* 2.0 x)) 1.0) (- (exp x) 1.0)))