applicable for free nucleons as well as for LCPs. The second one is applicable only for free nucleons, as the energy in this study is up to 600 MeV/nucleon, which is quite sufficient to produce pions.

To see the effect of the high-density behavior of symmetry energy on the isospin asymmetry dependence, we display the ratio from free nucleons and LCPs in Figs. \[fig:5\] and \[fig:6\] at only high energies (200, 400, and 600 MeV/nucleon). Due to the instability of the highly compressed zone, we are not able to differentiate between the results of symmetry energy obtained at the time of maximum compression; however, we had earlier obtained some important conclusions from Fig. \[fig:4\], where incident energy dependence was discussed.

The results from Figs. \[fig:5\] and \[fig:6\] at the freeze-out time reveal many important points. The isospin asymmetry dependence of the ratio from free nucleons is highly sensitive to the symmetry energy compared to LCPs, i.e., the ratio from free nucleons is found to be sharply increasing with the isospin asymmetry of the system compared to LCPs. This is due to the fact that isospin effects on the ratio from free nucleons are strongly affected by the symmetry energy and 