"(MODCOMP13) %a %j %j %j\nYou cannot use both %1p and %2p as model dimensions, because they are both surrogates of dimension %3p."
*Cause: The user attempted to include two dimension surrogates of the same
dimension in the DIMENSION statement of a model.
*Action: Use either of the two surrogates in the DIMENSION statement of
the model, but not both.