#0  0x00007ff4a476963f in  () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007ff4a50fe5a6 in QGuiApplication::screenAdded(QScreen*) () at /lib/x86_64-linux-gnu/libQt5Gui.so.5
#2  0x00007ff4a50e3d80 in QWindowSystemInterface::handleScreenAdded(QPlatformScreen*, bool) () at /lib/x86_64-linux-gnu/libQt5Gui.so.5
#3  0x00007ff4980b9540 in QXcbConnection::initializeScreens() () at /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007ff4980942a4 in QXcbConnection::QXcbConnection(QXcbNativeInterface*, bool, unsigned int, char const*) () at /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#5  0x00007ff49809710f in QXcbIntegration::QXcbIntegration(QStringList const&, int&, char**) () at /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#6  0x00007ff4b172c593 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#7  0x00007ff4a51029fc in QGuiApplicationPrivate::createPlatformIntegration() () at /lib/x86_64-linux-gnu/libQt5Gui.so.5
#8  0x00007ff4a5103e88 in QGuiApplicationPrivate::createEventDispatcher() () at /lib/x86_64-linux-gnu/libQt5Gui.so.5
#9  0x00007ff4a4738e46 in QCoreApplicationPrivate::init() () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007ff4a5106e02 in QGuiApplicationPrivate::init() () at /lib/x86_64-linux-gnu/libQt5Gui.so.5
#11 0x00007ff4a8a97fed in QApplicationPrivate::init() () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x00005571823d668b in SharedTools::QtSingleApplication::QtSingleApplication(QString const&, int&, char**) ()
#13 0x00005571822f730c in OCC::Application::Application(int&, char**) ()
#14 0x00005571822c33c7 in main ()