#0  0x00007ffff78968f6 in _int_free () from /usr/lib/libc.so.6
No symbol table info available.
#1  0x00007ffff535bfbc in QClipData::~QClipData (this=0xc81fb0, __in_chrg=<optimized out>) at painting/qpaintengine_raster.cpp:3703
No locals.
#2  QScopedPointerDeleter<QClipData>::cleanup (pointer=0xc81fb0) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:60
No locals.
#3  QScopedPointer<QClipData, QScopedPointerDeleter<QClipData> >::~QScopedPointer (this=0xc9aa08, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:107
        oldD = 0xc81fb0
#4  QRasterPaintEnginePrivate::~QRasterPaintEnginePrivate (this=0xc9a440, __in_chrg=<optimized out>) at ../../include/QtGui/5.8.0/QtGui/private/../../../../../src/gui/painting/qpaintengine_raster_p.h:278
No locals.
#5  QRasterPaintEnginePrivate::~QRasterPaintEnginePrivate (this=0xc9a440, __in_chrg=<optimized out>) at ../../include/QtGui/5.8.0/QtGui/private/../../../../../src/gui/painting/qpaintengine_raster_p.h:278
No locals.
#6  0x00007ffff5345d19 in QRasterPaintEngine::~QRasterPaintEngine (this=0xc89a70, __in_chrg=<optimized out>) at painting/qpaintengine_raster.cpp:431
No locals.
#7  0x00007ffff5147cf3 in QImageData::~QImageData (this=0xc951f0, __in_chrg=<optimized out>) at image/qimage.cpp:173
No locals.
#8  0x00007ffff5147fd7 in QImage::~QImage (this=0x91c800, __in_chrg=<optimized out>) at image/qimage.cpp:1010
No locals.
#9  0x00007ffff5148009 in QImage::~QImage (this=0x91c800, __in_chrg=<optimized out>) at image/qimage.cpp:1011
No locals.
#10 0x00007ffff5294336 in QScopedPointerDeleter<QImage>::cleanup (pointer=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:60
No locals.
#11 QScopedPointer<QImage, QScopedPointerDeleter<QImage> >::reset (other=0x91a4b0, this=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:154
        oldD = <optimized out>
#12 QBackingStore::beginPaint (this=0xbce0b0, region=...) at painting/qbackingstore.cpp:195
        targetDevicePixelRatio = <optimized out>
        source = <optimized out>
        device = <optimized out>
#13 0x00007ffff58ae629 in QWidgetBackingStore::beginPaint (toCleanIsInTopLevelCoordinates=true, returnInfo=<synthetic pointer>, backingStore=<optimized out>, widget=<optimized out>, toClean=..., this=0xbd6420) at kernel/qwidgetbackingstore.cpp:339
No locals.
#14 QWidgetBackingStore::doSync (this=this@entry=0xbd6420) at kernel/qwidgetbackingstore.cpp:1349
        updatesDisabled = <optimized out>
        repaintAllWidgets = <optimized out>
        inTopLevelResize = <optimized out>
        tlwRect = <optimized out>
        surfaceGeometry = <optimized out>
        toClean = {d = 0xc89b30, static shared_empty = {ref = {atomic = {_q_value = {<std::__atomic_base<int>> = {static _S_alignment = 4, _M_i = -1}, <No data fields>}}}, qt_rgn = 0x7ffff5745840 <qrp>}}
        opaqueNonOverlappedWidgets = {a = 32, s = 1, ptr = 0x7fffffffc900, {
            array = "`\363\220\000\000\000\000\000`\363\220\000\000\000\000\000@\311\377\377\377\177\000\000\346_+\366\377\177\000\000\360\314\377\377\377\177\000\000`\363\220\000\000\000\000\000\020\315\377\377\377\177\000\000\000\000\000\000\000\000\000\000\360\314\377\377\377\177\000\000\313[\216\365\377\177\000\000\r\000\000\000\000\000\000\000)\334{\343\377\177\000\000\260\314\377\377\377\177\000\000\240S\311\000\000\000\000\000@\001\000\000\000\000\000\000`\266\221\000\000\000\000\000\200\036\306\364\377\177\000\000\000\326$\307\374%I\273p|\217\000\000\000\000\000\365\315N\350\377\177\000\000\350T\311\000\000\000\000\000\000\326$\307\374%I\273\250\340\320\364\377\177\000\000\360\314\377\377\377\177\000\000`\363\220\000\000\000\000\000"..., q_for_alignment_1 = 9499488, 
            q_for_alignment_2 = 4.6933706738811715e-317}}
        beginPaintInfo = {wasFlushed = 0, nothingToPaint = 0, backingStoreRecreated = 0}
        dirtyCopy = {d = 0x90f300, static shared_empty = {ref = {atomic = {_q_value = {<std::__atomic_base<int>> = {static _S_alignment = 4, _M_i = -1}, <No data fields>}}}, qt_rgn = 0x7ffff5745840 <qrp>}}
#15 0x00007ffff58ae9b2 in QWidgetBackingStore::sync (this=0xbd6420) at kernel/qwidgetbackingstore.cpp:1170
No locals.
#16 0x00007ffff58cdf0f in QWidgetPrivate::syncBackingStore (this=0x8fd4a0) at kernel/qwidget.cpp:1962
No locals.
#17 0x00007ffff58e5e38 in QWidget::event (this=this@entry=0x90f360, event=event@entry=0x8fac30) at kernel/qwidget.cpp:9095
No locals.
#18 0x00007ffff59cdf5e in QFrame::event (this=0x90f360, e=0x8fac30) at widgets/qframe.cpp:550
        result = <optimized out>
#19 0x00007ffff62b722e in sipQLabel::event (this=0x90f360, a0=0x8fac30) at sipQtWidgetsQLabel.cpp:1041
        sipGILState = PyGILState_LOCKED
        sipMeth = 0x0
#20 0x00007ffff589e3dc in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x90f360, e=0x8fac30) at kernel/qapplication.cpp:3745
        consumed = <optimized out>
        this = <optimized out>
        e = 0x8fac30
        receiver = 0x90f360
#21 0x00007ffff58a5bf1 in QApplication::notify (this=0x6caca0, receiver=0x90f360, e=0x8fac30) at kernel/qapplication.cpp:3502
        w = 0x90f360
        extra = <optimized out>
        isProxyWidget = <optimized out>
        res = false
#22 0x00007ffff61982ce in sipQApplication::notify (this=0x6caca0, a0=0x90f360, a1=0x8fac30) at sipQtWidgetsQApplication.cpp:232
        sipGILState = PyGILState_LOCKED
        sipMeth = 0x0
#23 0x00007ffff4bb54b0 in QCoreApplication::notifyInternal2 (receiver=0x90f360, event=event@entry=0x8fac30) at kernel/qcoreapplication.cpp:988
        selfRequired = true
        result = false
        cbdata = {0x90f360, 0x8fac30, 0x7fffffffcdcf}
        d = <optimized out>
        threadData = 0x87fbd0
        scopeLevelCounter = {threadData = 0x87fbd0}
#24 0x00007ffff4bb7c3d in QCoreApplication::sendEvent (event=0x8fac30, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
No locals.
#25 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x87fbd0) at kernel/qcoreapplication.cpp:1648
        e = 0x8fac30
        pe = <optimized out>
        r = <optimized out>
        unlocker = {m = <synthetic pointer><error reading variable>}
        event_deleter = {d = 0x8fac30}
        locker = {val = 8911872}
        startOffset = 0
        i = @0x87fbf4: 1
        cleanup = {receiver = 0x0, event_type = 0, data = 0x87fbd0, exceptionCaught = true}
#26 0x00007ffff4bb80a8 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1502
        data = <optimized out>
#27 0x00007ffff4c09cb3 in postEventSourceDispatch (s=0x8bc8a0) at kernel/qeventdispatcher_glib.cpp:276
        source = 0x8bc8a0
#28 0x00007ffff0d4c5a7 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#29 0x00007ffff0d4c810 in ?? () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#30 0x00007ffff0d4c8bc in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#31 0x00007ffff4c0a0bf in QEventDispatcherGlib::processEvents (this=0x8e3d00, flags=...) at kernel/qeventdispatcher_glib.cpp:423
        d = 0x8d3410
        canWait = true
        savedFlags = {i = 0}
        result = <optimized out>
#32 0x00007ffff4bb390a in QEventLoop::exec (this=this@entry=0x7fffffffd0c0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
        d = 0xc85580
        locker = {val = 8912064}
        ref = {d = 0xc85580, locker = @0x7fffffffd040, exceptionCaught = true}
#33 0x00007ffff4bbbe54 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1261
        threadData = 0x87fbd0
        eventLoop = {<QObject> = {_vptr.QObject = 0x7ffff50023d8 <vtable for QEventLoop+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff4d10b60 <qt_meta_stringdata_QObject>, data = 0x7ffff4d10a40 <qt_meta_data_QObject>, 
                static_metacall = 0x7ffff4be90c0 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0xc85580}, static staticQtMetaObject = {d = {superdata = 0x0, 
                stringdata = 0x7ffff4d5ade0 <qt_meta_stringdata_Qt>, data = 0x7ffff4d582a0 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7ffff4ff9860 <QObject::staticMetaObject>, 
              stringdata = 0x7ffff4d73060 <qt_meta_stringdata_QEventLoop>, data = 0x7ffff4d73000 <qt_meta_data_QEventLoop>, static_metacall = 0x7ffff4c5aa90 <QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, 
              extradata = 0x0}}}
        returnCode = <optimized out>
#34 0x00007ffff619ab71 in meth_QApplication_exec_ (sipArgs=0x7ffff7fb8048) at sipQtWidgetsQApplication.cpp:1506
        _save = 0x62a140
        sipRes = 0
        sipParseErr = 0x0
#35 0x00007ffff741891f in _PyCFunction_FastCallDict () from /usr/lib/libpython3.6m.so.1.0
No symbol table info available.
#36 0x00007ffff7427a0f in ?? () from /usr/lib/libpython3.6m.so.1.0
No symbol table info available.
#37 0x00007ffff73e3d77 in _PyEval_EvalFrameDefault () from /usr/lib/libpython3.6m.so.1.0
No symbol table info available.
#38 0x00007ffff7427f47 in PyEval_EvalCodeEx () from /usr/lib/libpython3.6m.so.1.0
No symbol table info available.
#39 0x00007ffff73e3a5b in PyEval_EvalCode () from /usr/lib/libpython3.6m.so.1.0
No symbol table info available.
#40 0x00007ffff74acdc2 in ?? () from /usr/lib/libpython3.6m.so.1.0
No symbol table info available.
#41 0x00007ffff74af62d in PyRun_FileExFlags () from /usr/lib/libpython3.6m.so.1.0
No symbol table info available.
#42 0x00007ffff74af817 in PyRun_SimpleFileExFlags () from /usr/lib/libpython3.6m.so.1.0
No symbol table info available.
#43 0x00007ffff74a46f1 in Py_Main () from /usr/lib/libpython3.6m.so.1.0
No symbol table info available.
#44 0x0000000000400a5d in main ()
No symbol table info available.