[#1] INFO:NumericIntegration -- RooRealIntegral::init(modelEff_Int[t]) using numeric integrator RooIntegrator1D to calculate Int(t)
[#1] INFO:Fitting -- RooAbsPdf::fitTo(modelEff_over_modelEff_Int[t]) fixing normalization set for coefficient determination to observables in data
[#1] INFO:Fitting -- using generic CPU library compiled with no vectorizations
[#1] INFO:Fitting -- Creation of NLL object took 639.102 μs
[#1] INFO:Fitting -- RooAddition::defaultErrorLevel(nll_modelEff_over_modelEff_Int[t]_modelEffData) Summation contains a RooNLLVar, using its error level
[#1] INFO:Minimization -- [fitFCN] No discrete parameters, performing continuous minimization only
[#1] INFO:NumericIntegration -- RooRealIntegral::init(modelEff_Int[t]) using numeric integrator RooIntegrator1D to calculate Int(t)
[#1] INFO:NumericIntegration -- RooRealIntegral::init(modelEff_Int[t]) using numeric integrator RooIntegrator1D to calculate Int(t)