In addition, running with BASTST = .TRUE. allows you to print quickly all the internal states used in the expansion of the scattering (or photodissociation) wavefunction, and their energies. This is particularly useful in determining the asymptotic correlation of the adiabatic energies; see the EADIAB help file.
If BASTST = .TRUE., then following the command RUN, the program returns control to the user after calling the subroutine BASIS.