We further set the initial momentum k0 = 30 au to investigate the high-energy cases in the DAC model. Figure shows the population distributions at representative time steps with t = 400, 780 and 1200 au. As the initial kinetic energy of the WP is large, the energy difference between the lower and upper PESs does not result in severe WP splitting. In this case, trajectory branching does not occur and phase correction also has minor impact. Therefore, trajectory analysis becomes the only key factor in determining the final results. We find that the population distributions by FSSH-wf and BCSH-wf are almost identical. After long-time evolution (see Figures and), the methods based on wavefunctions exhibit significant deviations. In comparison, BCSH-as produces nearly the same results as the quantum references because the active states along BCSH trajectories accurately capture the distinct motions of WPs on different PESs.