*** Break *** segmentation violation



===========================================================
There was a crash.
This is the entire stack trace of all threads:
===========================================================
#0  0x00007f5cd18a5337 in __GI___waitpid (pid=5747, stat_loc=stat_loc
entry=0x7ffee423c868, options=options
entry=0) at ../sysdeps/unix/sysv/linux/waitpid.c:30
#1  0x00007f5cd1810047 in do_system (line=<optimised out>) at ../sysdeps/posix/system.c:149
#2  0x00007f5cd2c4cbc3 in TUnixSystem::StackTrace() () from /home/maxwellcui/root/lib/libCore.so.6.26
#3  0x00007f5cd2c4f855 in TUnixSystem::DispatchSignals(ESignals) () from /home/maxwellcui/root/lib/libCore.so.6.26
#4  <signal handler called>
#5  0x00007f5cd21660bc in std::vector<std::vector<float, std::allocator<float> >, std::allocator<std::vector<float, std::allocator<float> > > >::size() const () from libUtilLib.so
#6  0x00007f5cd21656f0 in std::vector<std::vector<float, std::allocator<float> >, std::allocator<std::vector<float, std::allocator<float> > > >::resize(unsigned long) () from libUtilLib.so
#7  0x00007f5cd216499d in ROOT::Detail::TCollectionProxyInfo::Pushback<std::vector<std::vector<float, std::allocator<float> >, std::allocator<std::vector<float, std::allocator<float> > > > >::resize(void*, unsigned long) () from libUtilLib.so
#8  0x00007f5cd24bd92b in TGenCollectionStreamer::ReadObjects(int, TBuffer&, TClass const*) () from /home/maxwellcui/root/lib/libRIO.so.6.26
#9  0x00007f5cd24be44f in TGenCollectionStreamer::ReadBufferGeneric(TBuffer&, void*, TClass const*) () from /home/maxwellcui/root/lib/libRIO.so.6.26
#10 0x00007f5cd243a901 in TBufferFile::ReadFastArray(void*, TClass const*, int, TMemberStreamer*, TClass const*) () from /home/maxwellcui/root/lib/libRIO.so.6.26
#11 0x00007f5cd258fd34 in int TStreamerInfoActions::ReadSTL<&TStreamerInfoActions::ReadSTLMemberWiseSameClass, &TStreamerInfoActions::ReadSTLObjectWiseFastArray>(TBuffer&, void*, TStreamerInfoActions::TConfiguration const*) () from /home/maxwellcui/root/lib/libRIO.so.6.26
#12 0x00007f5cd2439664 in TBufferFile::ApplySequence(TStreamerInfoActions::TActionSequence const&, void*) [clone .localalias.108] () from /home/maxwellcui/root/lib/libRIO.so.6.26
#13 0x00007f5cb9cf4b29 in TBranchElement::ReadLeavesMember(TBuffer&) () from /home/maxwellcui/root/lib/libTree.so.6.26.04
#14 0x00007f5cb9cebba5 in TBranch::GetEntry(long long, int) () from /home/maxwellcui/root/lib/libTree.so.6.26.04
#15 0x00007f5cb9d04a89 in TBranchElement::GetEntry(long long, int) () from /home/maxwellcui/root/lib/libTree.so.6.26.04
#16 0x00007f5cd21685fb in prepare(TFile*) () from libUtilLib.so
#17 0x00005614bd854b75 in main ()
===========================================================


The lines below might hint at the cause of the crash.
You may get help by asking at the ROOT forum https://root.cern/forum
Only if you are really convinced it is a bug in ROOT then please submit a
report at https://root.cern/bugs Please post the ENTIRE stack trace
from above as an attachment in addition to anything else
that might help us fixing this issue.
===========================================================
#5  0x00007f5cd21660bc in std::vector<std::vector<float, std::allocator<float> >, std::allocator<std::vector<float, std::allocator<float> > > >::size() const () from libUtilLib.so
#6  0x00007f5cd21656f0 in std::vector<std::vector<float, std::allocator<float> >, std::allocator<std::vector<float, std::allocator<float> > > >::resize(unsigned long) () from libUtilLib.so
#7  0x00007f5cd216499d in ROOT::Detail::TCollectionProxyInfo::Pushback<std::vector<std::vector<float, std::allocator<float> >, std::allocator<std::vector<float, std::allocator<float> > > > >::resize(void*, unsigned long) () from libUtilLib.so
#8  0x00007f5cd24bd92b in TGenCollectionStreamer::ReadObjects(int, TBuffer&, TClass const*) () from /home/maxwellcui/root/lib/libRIO.so.6.26
#9  0x00007f5cd24be44f in TGenCollectionStreamer::ReadBufferGeneric(TBuffer&, void*, TClass const*) () from /home/maxwellcui/root/lib/libRIO.so.6.26
#10 0x00007f5cd243a901 in TBufferFile::ReadFastArray(void*, TClass const*, int, TMemberStreamer*, TClass const*) () from /home/maxwellcui/root/lib/libRIO.so.6.26
#11 0x00007f5cd258fd34 in int TStreamerInfoActions::ReadSTL<&TStreamerInfoActions::ReadSTLMemberWiseSameClass, &TStreamerInfoActions::ReadSTLObjectWiseFastArray>(TBuffer&, void*, TStreamerInfoActions::TConfiguration const*) () from /home/maxwellcui/root/lib/libRIO.so.6.26
#12 0x00007f5cd2439664 in TBufferFile::ApplySequence(TStreamerInfoActions::TActionSequence const&, void*) [clone .localalias.108] () from /home/maxwellcui/root/lib/libRIO.so.6.26
#13 0x00007f5cb9cf4b29 in TBranchElement::ReadLeavesMember(TBuffer&) () from /home/maxwellcui/root/lib/libTree.so.6.26.04
#14 0x00007f5cb9cebba5 in TBranch::GetEntry(long long, int) () from /home/maxwellcui/root/lib/libTree.so.6.26.04
#15 0x00007f5cb9d04a89 in TBranchElement::GetEntry(long long, int) () from /home/maxwellcui/root/lib/libTree.so.6.26.04
#16 0x00007f5cd21685fb in prepare(TFile*) () from libUtilLib.so
#17 0x00005614bd854b75 in main ()
===========================================================