Full stacks:
0 libsystem_malloc.dylib malloc_zone_calloc
1 libsystem_malloc.dylib calloc
2 libobjc.A.dylib class_createInstance
3 libobjc.A.dylib +[NSObject allocWithZone:]
4 Sample +[SdkboxReachability reachabilityWithAddress:]
5 Sample +[SdkboxReachability reachabilityForInternetConnection]
6 Sample -[TrackingLocalStorage notificationReceived:]
7 Foundation __57-[NSNotificationCenter addObserver:selector:name:object:]_block_invoke_2
8 CoreFoundation CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER
9 CoreFoundation ___CFXRegistrationPost_block_invoke
10 CoreFoundation _CFXRegistrationPost
11 CoreFoundation ___CFXNotificationPost_block_invoke
12 CoreFoundation -[_CFXNotificationRegistrar find:object:observer:enumerator:]
13 CoreFoundation _CFXNotificationPost
14 Foundation -[NSNotificationCenter postNotificationName:object:userInfo:]
15 SystemConfiguration reachPerformAndUnlock
16 CoreFoundation CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION
17 CoreFoundation __CFRunLoopDoSource0
18 CoreFoundation __CFRunLoopDoSources0
19 CoreFoundation __CFRunLoopRun
20 CoreFoundation CFRunLoopRunSpecific
21 GraphicsServices GSEventRunModal
22 UIKitCore UIApplicationMain
23 Sample main.m:5
24 libdyld.dylib start
I think its related to this topic https://stackoverflow.com/questions/20652033/apples-reachability-memory-leak