Towards model descriptions of the latest data by the NA61/SHINE collaboration on $${^{40}\mathrm{Ar}+{^{45}}\mathrm{Sc}}$$ and $${^{7}\mathrm{Be}+{^{9}}\mathrm{Be}}$$ interactions

It is shown that the Geant4 FTF model, which does not include simulation of hard parton-parton scattering and formation quark-gluon plasma (QGP), describes well NA61/SHINE data on $\pi^-$ meson distributions for interactions at $\sqrt{s_{NN}}=$ 5.2, 6.1, 7.6 8.8 GeV. At higher energies, 11.9 16.8 GeV, model underestimates data. This considered as an indication QGP energies in central collisions light intermediate nuclei than heavy ($\sqrt{s_{NN}}\sim 6$ GeV).