ARCMAIN TERMINTATED WITH SEVERITY X in Teradata

Question:

Archmain terminate with one of the following messages. What does it mean?

ARCMAIN TERMINATED WITH SEVERITY 0

ARCMAIN TERMINATED WITH SEVERITY 4

ARCMAIN TERMINATED WITH SEVERITY 8

ARCMAIN TERMINATED WITH SEVERITY 12

ARCMAIN TERMINATED WITH SEVERITY 16

Answer: