Proper multi-property SV-COMP specification #1220
Description
In #1201 (and maybe something earlier as well), preliminary and hacky support for SV-COMP MemSafety was added. That category uses a specification file with multiple properties but our implementation only does one at a time. It should be cleaned up.
Since our analysis isn't property-directed anyway, we can just be very general and allow other combinations just as well.