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There was a crash (#7 0xf79d5fbd in SigHandler(ESignals) () from /opt/products/root/5.26.00/lib/libCore.so.5.26).
This is the entire stack trace of all threads:
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#0  0xffffe410 in __kernel_vsyscall ()
#1  0x009cb713 in __waitpid_nocancel () from /lib/libc.so.6
#2  0x0097007b in do_system () from /lib/libc.so.6
#3  0x00aa9ead in system () from /lib/libpthread.so.0
#4  0xf79d151d in TUnixSystem::Exec(char const*) () from /opt/products/root/5.26.00/lib/libCore.so.5.26
#5  0xf79d83c1 in TUnixSystem::StackTrace() () from /opt/products/root/5.26.00/lib/libCore.so.5.26
#6  0xf79d5eee in TUnixSystem::DispatchSignals(ESignals) () from /opt/products/root/5.26.00/lib/libCore.so.5.26
#7  0xf79d5fbd in SigHandler(ESignals) () from /opt/products/root/5.26.00/lib/libCore.so.5.26
#8  0xf79cee54 in sighandler(int) () from /opt/products/root/5.26.00/lib/libCore.so.5.26
#9  <signal handler called>
#10 0xf6cbdbbf in ROOT::Math::WrappedMultiTF1::DoEvalPar(double const*, double const*) const () from /opt/products/root/5.26.00/lib/libHist.so.5.26
#11 0xf60b7998 in ROOT::Fit::FitUtil::EvaluateChi2(ROOT::Math::IParametricFunctionMultiDim const&, ROOT::Fit::BinData const&, double const*, unsigned int&) () from /opt/products/root/5.26.00/lib/libMathCore.so.5.26
#12 0x08052e15 in ROOT::Fit::Chi2FCN<ROOT::Math::IBaseFunctionMultiDim>::DoEval(double const*) const ()
#13 0x08050ea3 in ROOT::Math::IBaseFunctionMultiDim::operator()(double const*) const ()
#14 0x08051553 in GlobalChi2::operator()(double const*) const ()
#15 0x08051b49 in ROOT::Math::WrappedMultiFunction<GlobalChi2>::DoEval(double const*) const ()
#16 0xf5d4c0d9 in TMinuitMinimizer::Fcn(int&, double*, double&, double*, int) () from /opt/products/root/5.26.00/lib/libMinuit.so
#17 0xf5d301b7 in TMinuit::Eval(int, double*, double&, double*, int) () from /opt/products/root/5.26.00/lib/libMinuit.so
#18 0xf5d30c2f in TMinuit::mnamin() () from /opt/products/root/5.26.00/lib/libMinuit.so
#19 0xf5d39b39 in TMinuit::mnmigr() () from /opt/products/root/5.26.00/lib/libMinuit.so
#20 0xf5d48525 in TMinuit::mnexcm(char const*, double*, int, int&) () from /opt/products/root/5.26.00/lib/libMinuit.so
#21 0xf5d4dd29 in TMinuitMinimizer::Minimize() () from /opt/products/root/5.26.00/lib/libMinuit.so
#22 0xf60c0dce in bool ROOT::Fit::Fitter::DoMinimization<ROOT::Math::IBaseFunctionMultiDim>(ROOT::Math::IBaseFunctionMultiDim const&, unsigned int, ROOT::Math::IBaseFunctionMultiDim const*) () from /opt/products/root/5.26.00/lib/libMathCore.so.5.26
#23 0xf60bdbb9 in ROOT::Fit::Fitter::FitFCN(ROOT::Math::IBaseFunctionMultiDim const&, double const*, unsigned int) ()
   from /opt/products/root/5.26.00/lib/libMathCore.so.5.26
#24 0x08052f0c in bool ROOT::Fit::Fitter::FitFCN<GlobalChi2>(unsigned int, GlobalChi2, double const*, unsigned int) ()
#25 0x080507d5 in massTemplates() ()
#26 0x08050cad in main ()