$ gdb qtcreator
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Reading symbols from qtcreator...(no debugging symbols found)...done.
(gdb) r
Starting program: /usr/bin/qtcreator 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[New Thread 0x7fffea811700 (LWP 11326)]
[New Thread 0x7fffd57bd700 (LWP 11327)]
[New Thread 0x7fffd4fbc700 (LWP 11328)]
[New Thread 0x7fffcffff700 (LWP 11329)]
[New Thread 0x7fffcf7fe700 (LWP 11330)]
[New Thread 0x7fffceffd700 (LWP 11331)]
[New Thread 0x7fffce7fc700 (LWP 11332)]
[New Thread 0x7fffcdffb700 (LWP 11333)]
[New Thread 0x7fffcd7fa700 (LWP 11334)]
[New Thread 0x7fffccff9700 (LWP 11335)]
[New Thread 0x7fffabfff700 (LWP 11336)]
[New Thread 0x7fffab7fe700 (LWP 11337)]
[New Thread 0x7fffaaffd700 (LWP 11338)]
[New Thread 0x7fffaa7fc700 (LWP 11339)]
[New Thread 0x7fff668dc700 (LWP 11340)]
[New Thread 0x7fff660db700 (LWP 11341)]
[New Thread 0x7fff658da700 (LWP 11342)]
[New Thread 0x7fff64ec7700 (LWP 11345)]
[Thread 0x7fff64ec7700 (LWP 11345) exited]
[New Thread 0x7fff64ec7700 (LWP 11369)]
[New Thread 0x7fff578ef700 (LWP 11370)]
[New Thread 0x7fff570ee700 (LWP 11371)]
[Thread 0x7fff578ef700 (LWP 11370) exited]
[New Thread 0x7fff578ef700 (LWP 11372)]
[Thread 0x7fff578ef700 (LWP 11372) exited]
[New Thread 0x7fff578ef700 (LWP 11410)]
[New Thread 0x7fff560ed700 (LWP 11411)]
[New Thread 0x7fff558ec700 (LWP 11412)]
[New Thread 0x7fff550eb700 (LWP 11413)]
[New Thread 0x7fff548ea700 (LWP 11414)]
SOFT ASSERT: "modelManager" in file ../../../../qt-creator-opensource-src-4.6.2/src/plugins/cmakeprojectmanager/cmakeproject.cpp, line 325
[Thread 0x7fff548ea700 (LWP 11414) exited]
[Thread 0x7fff550eb700 (LWP 11413) exited]
[Thread 0x7fff558ec700 (LWP 11412) exited]
[Thread 0x7fff578ef700 (LWP 11410) exited]
[Thread 0x7fff560ed700 (LWP 11411) exited]
[Thread 0x7fff64ec7700 (LWP 11369) exited]
[Thread 0x7fff570ee700 (LWP 11371) exited]