Simulations performed with different numerical grids in Icarus. The blue line corresponds to in situ data observed at the MESSENGER spacecraft. The black, red, and green vertical dashed lines indicate the shock arrival time, the ME LE, and the ME TE, respectively. The left figure shows magnetic field components. Equidistant grid simulation results with low and medium-resolution grids are given in orange and green. The results of the simulations performed on the stretched grid with the combination of AMR levels 2, 3, and 4 are given in red, purple, and brown, respectively. The right figure shows the shift of the modelled data in time with 13 hours to project the profiles during the CME interaction at MESSENGER.