0.917 * [progress]: [Phase 1 of 3] Setting up.
0.004 * * * [progress]: [1/2] Preparing points
0.701 * * * [progress]: [2/2] Setting up program.
0.709 * [progress]: [Phase 2 of 3] Improving.
0.711 * [simplify]: Simplifying:
  (* (acos (+ (* (sin phi1) (sin phi2)) (* (* (cos phi1) (cos phi2)) (cos (- lambda1 lambda2))))) R)