#0  g_type_check_instance_cast (type_instance=0x2133990, iface_type=34825392) at /build/buildd/glib2.0-2.37.6/./gobject/gtype.c:4008
        is_instantiatable = <optimized out>
        check = <optimized out>
#1  0x00000000004778e7 in ?? ()
No symbol table info available.
#2  0x0000000000472a52 in ?? ()
No symbol table info available.
#3  0x00007f046aea82e8 in g_closure_invoke (closure=0x2219f10, return_value=0x0, n_param_values=1, param_values=0x7fff7f5b3430, invocation_hint=0x7fff7f5b33d0) at /build/buildd/glib2.0-2.37.6/./gobject/gclosure.c:777
        marshal = 0x7f046aea6be0 <g_type_class_meta_marshal>
        marshal_data = 0x3f0
        in_marshal = 0
        real_closure = 0x2219ef0
        __PRETTY_FUNCTION__ = "g_closure_invoke"
#4  0x00007f046aeba50b in signal_emit_unlocked_R (node=node@entry=0x221b5c0, detail=detail@entry=0, instance=instance@entry=0x237e440, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7fff7f5b3430) at /build/buildd/glib2.0-2.37.6/./gobject/gsignal.c:3620
        accumulator = 0x0
        emission = {next = 0x7fff7f5b38a0, instance = 0x237e440, ihint = {signal_id = 363, detail = 0, run_type = G_SIGNAL_RUN_LAST}, state = EMISSION_RUN, chain_type = 32814704}
        handler_list = 0x235f590
        return_accu = 0x0
        accu = {g_type = 0, data = {{v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
        signal_id = 363
        max_sequential_handler_number = 53512
        return_value_altered = 1
#5  0x00007f046aec294a in g_signal_emit_valist (instance=instance@entry=0x237e440, signal_id=signal_id@entry=363, detail=detail@entry=0, var_args=var_args@entry=0x7fff7f5b3610) at /build/buildd/glib2.0-2.37.6/./gobject/gsignal.c:3326
        instance_and_params = 0x7fff7f5b3430
        signal_return_type = <optimized out>
        param_values = 0x7fff7f5b3448
        i = <optimized out>
        n_params = <optimized out>
        __PRETTY_FUNCTION__ = "g_signal_emit_valist"
        __FUNCTION__ = "g_signal_emit_valist"
#6  0x00007f046aec3152 in g_signal_emit_by_name (instance=0x237e440, detailed_signal=0x4f29bc "active") at /build/buildd/glib2.0-2.37.6/./gobject/gsignal.c:3422
        var_args = {{gp_offset = 16, fp_offset = 48, overflow_arg_area = 0x7fff7f5b3750, reg_save_area = 0x7fff7f5b3660}}
        detail = 0
        signal_id = 363
        itype = 32814704
        __PRETTY_FUNCTION__ = "g_signal_emit_by_name"
#7  0x000000000047871d in ?? ()
No symbol table info available.
#8  0x00007f046aea82e8 in g_closure_invoke (closure=0x2219c50, return_value=0x0, n_param_values=3, param_values=0x7fff7f5b3910, invocation_hint=0x7fff7f5b38b0) at /build/buildd/glib2.0-2.37.6/./gobject/gclosure.c:777
        marshal = 0x7f046d5dea50 <_gtk_marshal_VOID__OBJECT_UINT>
        marshal_data = 0x0
        in_marshal = 0
        real_closure = 0x2219c30
        __PRETTY_FUNCTION__ = "g_closure_invoke"
#9  0x00007f046aeba75d in signal_emit_unlocked_R (node=node@entry=0x1f0af70, detail=detail@entry=0, instance=instance@entry=0x221a210, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7fff7f5b3910) at /build/buildd/glib2.0-2.37.6/./gobject/gsignal.c:3582
        tmp = <optimized out>
        handler = 0x2218a90
        accumulator = 0x0
        emission = {next = 0x7fff7f5b3d60, instance = 0x221a210, ihint = {signal_id = 101, detail = 0, run_type = G_SIGNAL_RUN_FIRST}, state = EMISSION_RUN, chain_type = 4}
        handler_list = 0x2218a90
        return_accu = 0x0
        accu = {g_type = 0, data = {{v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
        signal_id = 101
        max_sequential_handler_number = 53511
        return_value_altered = 0
#10 0x00007f046aec294a in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7fff7f5b3ac8) at /build/buildd/glib2.0-2.37.6/./gobject/gsignal.c:3326
        instance_and_params = 0x7fff7f5b3910
        signal_return_type = <optimized out>
        param_values = 0x7fff7f5b3928
        i = <optimized out>
        n_params = <optimized out>
        __PRETTY_FUNCTION__ = "g_signal_emit_valist"
        __FUNCTION__ = "g_signal_emit_valist"
#11 0x00007f046aec2c22 in g_signal_emit (instance=instance@entry=0x221a210, signal_id=<optimized out>, detail=detail@entry=0) at /build/buildd/glib2.0-2.37.6/./gobject/gsignal.c:3382
        var_args = {{gp_offset = 40, fp_offset = 48, overflow_arg_area = 0x7fff7f5b3ba0, reg_save_area = 0x7fff7f5b3ae0}}
#12 0x00007f046d601a3d in gtk_notebook_switch_page (notebook=notebook@entry=0x221a210, page=<optimized out>) at /build/buildd/gtk+3.0-3.9.12/./gtk/gtknotebook.c:6597
        priv = <optimized out>
        page_num = <optimized out>
#13 0x00007f046d605700 in gtk_notebook_real_remove (list=0x201ec20, notebook=0x221a210) at /build/buildd/gtk+3.0-3.9.12/./gtk/gtknotebook.c:4939
        need_resize = 0
        destroying = 0
        priv = 0x221a080
        page = <optimized out>
        next_list = 0x23c50c0
        tab_label = <optimized out>
#14 gtk_notebook_remove (container=<optimized out>, widget=0x21e6b30) at /build/buildd/gtk+3.0-3.9.12/./gtk/gtknotebook.c:4109
        notebook = 0x221a210
        priv = <optimized out>
        page = <optimized out>
        children = 0x201ec20
        list = 0x23c50c0
        page_num = <optimized out>
#15 0x00000000004497cd in ?? ()
No symbol table info available.
#16 0x00007f046aea82e8 in g_closure_invoke (closure=0x1f043d0, return_value=0x0, n_param_values=2, param_values=0x7fff7f5b3dd0, invocation_hint=0x7fff7f5b3d70) at /build/buildd/glib2.0-2.37.6/./gobject/gclosure.c:777
        marshal = 0x7f046aea6be0 <g_type_class_meta_marshal>
        marshal_data = 0x340
        in_marshal = 0
        real_closure = 0x1f043b0
        __PRETTY_FUNCTION__ = "g_closure_invoke"
#17 0x00007f046aeb9f4f in signal_emit_unlocked_R (node=node@entry=0x1f04420, detail=detail@entry=0, instance=instance@entry=0x221a210, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7fff7f5b3dd0) at /build/buildd/glib2.0-2.37.6/./gobject/gsignal.c:3512
        accumulator = 0x0
        emission = {next = 0x7fff7f5b4640, instance = 0x221a210, ihint = {signal_id = 84, detail = 0, run_type = G_SIGNAL_RUN_FIRST}, state = EMISSION_RUN, chain_type = 35754720}
        handler_list = <optimized out>
        return_accu = 0x0
        accu = {g_type = 0, data = {{v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
        signal_id = 84
        max_sequential_handler_number = 53511
        return_value_altered = <optimized out>
#18 0x00007f046aec294a in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7fff7f5b3f68) at /build/buildd/glib2.0-2.37.6/./gobject/gsignal.c:3326
        instance_and_params = 0x7fff7f5b3dd0
        signal_return_type = <optimized out>
        param_values = 0x7fff7f5b3de8
        i = <optimized out>
        n_params = <optimized out>
        __PRETTY_FUNCTION__ = "g_signal_emit_valist"
        __FUNCTION__ = "g_signal_emit_valist"
#19 0x00007f046aec2c22 in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at /build/buildd/glib2.0-2.37.6/./gobject/gsignal.c:3382
        var_args = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 0x7fff7f5b4040, reg_save_area = 0x7fff7f5b3f80}}
#20 0x00007f046abdbe08 in g_list_foreach (list=<optimized out>, func=0x475310, user_data=0x2104410) at /build/buildd/glib2.0-2.37.6/./glib/glist.c:949
        next = 0x201fc80
#21 0x000000000047604d in ?? ()
No symbol table info available.
#22 0x00007f046aea82e8 in g_closure_invoke (closure=0x1eee140, return_value=0x0, n_param_values=1, param_values=0x7fff7f5b4220, invocation_hint=0x7fff7f5b41c0) at /build/buildd/glib2.0-2.37.6/./gobject/gclosure.c:777
        marshal = 0x7f046aea6be0 <g_type_class_meta_marshal>
        marshal_data = 0x98
        in_marshal = 0
        real_closure = 0x1eee120
        __PRETTY_FUNCTION__ = "g_closure_invoke"
#23 0x00007f046aebaaf4 in signal_emit_unlocked_R (node=node@entry=0x1eee1b0, detail=detail@entry=0, instance=instance@entry=0x2104410, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7fff7f5b4220) at /build/buildd/glib2.0-2.37.6/./gobject/gsignal.c:3698
        need_unset = 0
        accumulator = 0x0
        emission = {next = 0x0, instance = 0x2104410, ihint = {signal_id = 14, detail = 0, run_type = G_SIGNAL_RUN_CLEANUP}, state = EMISSION_STOP, chain_type = 34603776}
        handler_list = 0x232db60
        return_accu = 0x0
        accu = {g_type = 0, data = {{v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
        signal_id = 14
        max_sequential_handler_number = 53509
        return_value_altered = <optimized out>
#24 0x00007f046aec294a in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7fff7f5b43a8) at /build/buildd/glib2.0-2.37.6/./gobject/gsignal.c:3326
        instance_and_params = 0x7fff7f5b4220
        signal_return_type = <optimized out>
        param_values = 0x7fff7f5b4238
        i = <optimized out>
        n_params = <optimized out>
        __PRETTY_FUNCTION__ = "g_signal_emit_valist"
        __FUNCTION__ = "g_signal_emit_valist"
#25 0x00007f046aec2c22 in g_signal_emit (instance=instance@entry=0x2104410, signal_id=<optimized out>, detail=detail@entry=0) at /build/buildd/glib2.0-2.37.6/./gobject/gsignal.c:3382
        var_args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 0x7fff7f5b4480, reg_save_area = 0x7fff7f5b43c0}}
#26 0x00007f046d71fae8 in gtk_widget_dispose (object=0x2104410) at /build/buildd/gtk+3.0-3.9.12/./gtk/gtkwidget.c:11254
        widget = 0x2104410
        priv = 0x2104350
#27 0x00007f046aeaec40 in g_object_run_dispose (object=0x2104410) at /build/buildd/glib2.0-2.37.6/./gobject/gobject.c:1067
        __PRETTY_FUNCTION__ = "g_object_run_dispose"
#28 0x0000000000476e6c in ?? ()
No symbol table info available.
#29 0x00007f046d5d6a7e in _gtk_marshal_BOOLEAN__BOXEDv (closure=0x1efd680, return_value=0x7fff7f5b4600, instance=<optimized out>, args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, param_types=0x1efd6b0) at /build/buildd/gtk+3.0-3.9.12/./gtk/gtkmarshalers.c:130
        cc = <optimized out>
        data1 = <optimized out>
        data2 = <optimized out>
        callback = <optimized out>
        arg0 = 0x32bc920
        args_copy = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 0x7fff7f5b47e0, reg_save_area = 0x7fff7f5b4720}}
        v_return = <optimized out>
        __PRETTY_FUNCTION__ = "_gtk_marshal_BOOLEAN__BOXEDv"
#30 0x00007f046aea8517 in _g_closure_invoke_va (closure=0x1efd680, return_value=0x7fff7f5b4600, instance=0x2104410, args=0x7fff7f5b4708, n_params=1, param_types=0x1efd6b0) at /build/buildd/glib2.0-2.37.6/./gobject/gclosure.c:840
        marshal = 0x7f046aea6a60 <g_type_class_meta_marshalv>
        marshal_data = 0x1a0
        in_marshal = 0
        real_closure = 0x1efd660
        __PRETTY_FUNCTION__ = "_g_closure_invoke_va"
#31 0x00007f046aec234c in g_signal_emit_valist (instance=0x2104410, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7fff7f5b4708) at /build/buildd/glib2.0-2.37.6/./gobject/gsignal.c:3234
        return_accu = 0x7fff7f5b4600
        accu = {g_type = 20, data = {{v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
        accumulator = 0x1eff820
        emission = {next = 0x0, instance = 0x2104410, ihint = {signal_id = 45, detail = 0, run_type = G_SIGNAL_RUN_LAST}, state = EMISSION_RUN, chain_type = 34603776}
        signal_id = 45
        instance_type = <optimized out>
        emission_return = {g_type = 20, data = {{v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
        rtype = 20
        static_scope = 0
        fastpath_handler = <optimized out>
        closure = 0x1efd680
        run_type = <optimized out>
        l = <optimized out>
        fastpath = <optimized out>
        instance_and_params = <optimized out>
        signal_return_type = <optimized out>
        param_values = <optimized out>
        i = <optimized out>
        n_params = <optimized out>
        __PRETTY_FUNCTION__ = "g_signal_emit_valist"
        __FUNCTION__ = "g_signal_emit_valist"
#32 0x00007f046aec2c22 in g_signal_emit (instance=instance@entry=0x2104410, signal_id=<optimized out>, detail=detail@entry=0) at /build/buildd/glib2.0-2.37.6/./gobject/gsignal.c:3382
        var_args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 0x7fff7f5b47e0, reg_save_area = 0x7fff7f5b4720}}
#33 0x00007f046d714214 in gtk_widget_event_internal (widget=widget@entry=0x2104410, event=event@entry=0x32bc920) at /build/buildd/gtk+3.0-3.9.12/./gtk/gtkwidget.c:7143
        signal_num = <optimized out>
        return_val = 0
#34 0x00007f046d7144e9 in gtk_widget_event (widget=widget@entry=0x2104410, event=event@entry=0x32bc920) at /build/buildd/gtk+3.0-3.9.12/./gtk/gtkwidget.c:6805
        __PRETTY_FUNCTION__ = "gtk_widget_event"
#35 0x00007f046d5d6799 in gtk_main_do_event (event=event@entry=0x32bc920) at /build/buildd/gtk+3.0-3.9.12/./gtk/gtkmain.c:1593
        event_widget = 0x2104410
        grab_widget = 0x2104410
        topmost_widget = <optimized out>
        window_group = 0x210a970
        rewritten_event = <optimized out>
        device = 0x0
        tmp_list = <optimized out>
        __FUNCTION__ = "gtk_main_do_event"
#36 0x00007f046d727f93 in send_delete_event (data=0x2104410) at /build/buildd/gtk+3.0-3.9.12/./gtk/gtkwindow.c:1243
        window = 0x2104410
        event = 0x32bc920
#37 0x00007f046d183458 in gdk_threads_dispatch (data=0x242a0a0) at /build/buildd/gtk+3.0-3.9.12/./gdk/gdk.c:804
        dispatch = 0x242a0a0
        ret = 0
#38 0x00007f046abdf2d6 in g_main_dispatch (context=0x1f1bff0) at /build/buildd/glib2.0-2.37.6/./glib/gmain.c:3065
        dispatch = 0x7f046abdc370 <g_idle_dispatch>
        was_in_call = 0
        user_data = 0x242a0a0
        callback = 0x7f046d183430 <gdk_threads_dispatch>
        cb_funcs = 0x7f046ae96940 <g_source_callback_funcs>
        cb_data = 0x2363260
        need_destroy = <optimized out>
        current_source_link = {data = 0x214f000, next = 0x0}
        source = 0x214f000
        current = 0x7f045c001db0
        i = 0
#39 g_main_context_dispatch (context=context@entry=0x1f1bff0) at /build/buildd/glib2.0-2.37.6/./glib/gmain.c:3641
No locals.
#40 0x00007f046abdf628 in g_main_context_iterate (context=context@entry=0x1f1bff0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.37.6/./glib/gmain.c:3712
        max_priority = 200
        timeout = 0
        some_ready = 1
        nfds = <optimized out>
        allocated_nfds = 5
        fds = 0x2253940
#41 0x00007f046abdf6cc in g_main_context_iteration (context=0x1f1bff0, context@entry=0x0, may_block=may_block@entry=1) at /build/buildd/glib2.0-2.37.6/./glib/gmain.c:3773
        retval = <optimized out>
#42 0x00007f046b189f9c in g_application_run (application=0x1ef4120, argc=2, argv=0x7fff7f5b4b38) at /build/buildd/glib2.0-2.37.6/./gio/gapplication.c:1635
        arguments = 0x1ee03c0
        status = 0
        i = <optimized out>
        __PRETTY_FUNCTION__ = "g_application_run"
#43 0x000000000042aaf1 in ?? ()
No symbol table info available.
#44 0x00007f046a0b5de5 in __libc_start_main (main=0x42aa30, argc=2, ubp_av=0x7fff7f5b4b38, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff7f5b4b28) at libc-start.c:260
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -2360141463983764866, 4369194, 140735330077488, 0, 0, 2360424283736623742, 2393596962422770302}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x4eb0f0, 0x7fff7f5b4b38}, data = {prev = 0x0, cleanup = 0x0, canceltype = 5157104}}}
        not_first_call = <optimized out>
#45 0x000000000042ab53 in ?? ()
No symbol table info available.