gtk_widget_path_unref (path=<optimized out>) at /build/buildd/gtk+3.0-3.4.0/./gtk/gtkwidgetpath.c:230
gtk_widget_path_unref (path=0x1ce1880) at /build/buildd/gtk+3.0-3.4.0/./gtk/gtkwidgetpath.c:221
_gtk_widget_update_path (widget=0x19de000) at /build/buildd/gtk+3.0-3.4.0/./gtk/gtkwidget.c:7988
reset_style_recurse (widget=<optimized out>, data=<optimized out>) at /build/buildd/gtk+3.0-3.4.0/./gtk/gtkwidget.c:8523
gtk_box_forall (container=<optimized out>, include_internals=<optimized out>, callback=0x7f592b285e40 <reset_style_recurse>, callback_data=0x0) at /build/buildd/gtk+3.0-3.4.0/./gtk/gtkbox.c:1856