title: How can I debug this crash log
body: <p>I get this crash log from my device log after that my app is crashed. Before crash I clicked on cancel button from search bar inside <code>UITableView</code>.</p>
  
  <p>How can I understand what and where is the problem ?
  how can I debug this kind of log from production device?  </p>
  
  <pre><code>Thread 0 Crashed:
  0   libsystem_kernel.dylib          0x3b74b1fc __pthread_kill + 8
  1   libsystem_pthread.dylib         0x3b7b2a4e pthread_kill + 54
  2   libsystem_c.dylib               0x3b6fc028 abort + 72
  3   libc++abi.dylib                 0x3ab4a98a abort_message + 70
  4   libc++abi.dylib                 0x3ab636e2 default_terminate_handler() + 250
  5   libobjc.A.dylib                 0x3b19b936 _objc_terminate() + 190
  6   libc++abi.dylib                 0x3ab611b0 std::__terminate(void (*)()) + 76
  7   libc++abi.dylib                 0x3ab60d12 __cxa_rethrow + 98
  8   libobjc.A.dylib                 0x3b19b80a objc_exception_rethrow + 38
  9   CoreFoundation                  0x30d724e2 CFRunLoopRunSpecific + 638
  10  CoreFoundation                  0x30d7224e CFRunLoopRunInMode + 102
  11  GraphicsServices                0x35aac2e6 GSEventRunModal + 134
  12  UIKit                           0x33627840 UIApplicationMain + 1132
  13  MYAPPNAME                           0x000ffc44 0xfa000 + 23620
  14  libdyld.dylib                   0x3b694ab4 start + 0
  </code></pre>
  
  <p>------- EDITED ------</p>
  
  <p>i get Last Exception Backtrace:</p>
  
  <pre><code>0   CoreFoundation                  0x30e3ee7e __exceptionPreprocess + 126
  1   libobjc.A.dylib                 0x3b19b6c2 objc_exception_throw + 34
  2   CoreFoundation                  0x30e3ed50 +[NSException raise:format:arguments:] + 100
  3   Foundation                      0x317e70aa -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 86
  4   UIKit                           0x33796348 -[UITableView _endCellAnimationsWithContext:] + 7940
  5   MYAPPNAME                           0x00233972 0xfa000 + 1284466
  6   MYAPPNAME                           0x00232e3c 0xfa000 + 1281596
  7   MYAPPNAME                           0x00232fd8 0xfa000 + 1282008
  8   MYAPPNAME                           0x002319d4 0xfa000 + 1276372
  9   Foundation                      0x3181933a __NSFireDelayedPerform + 410
  10  CoreFoundation                  0x30e09e7a 
  __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 10
  11  CoreFoundation                  0x30e09a96 __CFRunLoopDoTimer + 790
  12  CoreFoundation                  0x30e07e1e __CFRunLoopRun + 1214
  13  CoreFoundation                  0x30d7246c CFRunLoopRunSpecific + 520
  14  CoreFoundation                  0x30d7224e CFRunLoopRunInMode + 102
  15  GraphicsServices                0x35aac2e6 GSEventRunModal + 134
  16  UIKit                           0x33627840 UIApplicationMain + 1132
  17  MYAPPNAME                           0x000ffc44 0xfa000 + 23620
  18  libdyld.dylib                   0x3b694ab2 tlv_initializer + 2
  </code></pre>