(gdb) run
Starting program: /usr/bin/qtcreator 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
[New Thread 0x7fffeb4d2700 (LWP 17439)]
[New Thread 0x7fffdefa9700 (LWP 17449)]
[New Thread 0x7fffcb5d6700 (LWP 17454)]
[New Thread 0x7fffc9f41700 (LWP 17455)]
[New Thread 0x7fffc8b1b700 (LWP 17466)]

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff73f2fc4 in QLabel::setText(QString const&) () from /usr/lib64/libQt5Widgets.so.5