Question

I don’t understand where is the leak here.

I am querying for a field in the database. After this, I am inserting in a NSMutableArray list.

@property (nonatomic, retain) NSMutableArray *bList;

@property (nonatomic, retain) NSString *icon;//Model

Model *newModel = [[Model alloc] init]; 
newModel.icon = [NSString stringWithUTF8String:(char *) sqlite3_column_text(compiledStatement, 2)];
[self.bList addObject:newModel];
[newModel release];

And in the end:

- (void)dealloc {
    [self.bList release];
    [super dealloc];
}

Answer 1

    [self.bList release];

Don’t do that; either use self.bList = nil; or [bList release], bList = nil;

There doesn’t appear to be a leak in that code, unless I’m missing something obvious.

Remember that leaks identifies where the leak was allocated, not where it was leaked. The leak is likely caused by an over-retain elsewhere.