 line: 5   UNSAFE 
 line: 10   UNSAFE 
 line: 10   UNSAFE 
 line: 10   UNSAFE 
 line: 22   UNSAFE 
 line: 22   SAFE 
 line: 22   UNSAFE 
 line: 22   SAFE 
 line: 45   SAFE 
 line: 47  line: 5   SAFE 
 line: 47  line: 10   SAFE 
 line: 47  line: 10   SAFE 
 line: 47  line: 10   SAFE 
 line: 48  line: 22   SAFE 
 line: 48  line: 22   SAFE 
 line: 45   SAFE 
