[#1] INFO:Eval -- RooRealVar::setRange(x) new range named 'bin' created with bounds [0.1,0.6]

  RooFitResult: minimized FCN value: 4754.37, estimated distance to minimum: 3.09852e-09
                covariance matrix quality: Full, accurate covariance matrix
                Status : MINIMIZE=0 HESSE=0 

    Floating Parameter    FinalValue +/-  Error   
  --------------------  --------------------------
                     c   -1.6862e+00 +/-  1.70e-02

[#0] WARNING:Integration -- RooBinIntegrator::RooBinIntegrator WARNING: integrand provide no binning definition observable #0 substituting default binning of 10 bins
[#1] INFO:NumericIntegration -- RooRealIntegral::init(expo_Int[x]) using numeric integrator RooBinIntegrator to calculate Int(x)

  RooFitResult: minimized FCN value: 4440.6, estimated distance to minimum: 5.599e-07
                covariance matrix quality: Full, accurate covariance matrix
                Status : MINIMIZE=0 HESSE=0 

    Floating Parameter    FinalValue +/-  Error   
  --------------------  --------------------------
                     c   -1.8000e+00 +/-  1.87e-02


  RooFitResult: minimized FCN value: 15816.4, estimated distance to minimum: 4.97037e-07
                covariance matrix quality: Full, accurate covariance matrix
                Status : MINIMIZE=0 HESSE=0 

    Floating Parameter    FinalValue +/-  Error   
  --------------------  --------------------------
                     a   -2.6106e-01 +/-  1.06e-02

[#0] WARNING:Integration -- RooBinIntegrator::RooBinIntegrator WARNING: integrand provide no binning definition observable #0 substituting default binning of 10 bins
[#1] INFO:NumericIntegration -- RooRealIntegral::init(powerlaw_Int[x]) using numeric integrator RooBinIntegrator to calculate Int(x)

  RooFitResult: minimized FCN value: 15739.9, estimated distance to minimum: 4.99474e-07
                covariance matrix quality: Full, accurate covariance matrix
                Status : MINIMIZE=0 HESSE=0 

    Floating Parameter    FinalValue +/-  Error   
  --------------------  --------------------------
                     a   -3.1481e-01 +/-  1.15e-02


  RooFitResult: minimized FCN value: 15739.6, estimated distance to minimum: 3.92419e-05
                covariance matrix quality: Full, accurate covariance matrix
                Status : MINIMIZE=0 HESSE=0 

    Floating Parameter    FinalValue +/-  Error   
  --------------------  --------------------------
                     a   -3.0010e-01 +/-  1.07e-02

[#0] PROGRESS:Generation -- RooAbsPdf::generateBinned(model) Performing costly accept/reject sampling. If this takes too long, use extended mode to speed up the process.

  RooFitResult: minimized FCN value: -1.47174e+08, estimated distance to minimum: 0.162057
                covariance matrix quality: Full, accurate covariance matrix
                Status : MINIMIZE=-1 HESSE=3 

    Floating Parameter    FinalValue +/-  Error   
  --------------------  --------------------------
                     c   -1.7972e+00 +/-  7.39e-04
                    mu    2.9756e+00 +/-  3.90e-02
                  nbkg    1.0001e+07 +/-  3.25e+03
                  nsig    9.4264e+03 +/-  7.36e+02
                 sigma    4.6849e-01 +/-  2.75e-02


  RooFitResult: minimized FCN value: 3416.14, estimated distance to minimum: 0.000238299
                covariance matrix quality: Full, accurate covariance matrix
                Status : MINIMIZE=0 HESSE=0 

    Floating Parameter    FinalValue +/-  Error   
  --------------------  --------------------------
                     c   -1.7971e+00 +/-  7.26e-04
                    mu    2.9939e+00 +/-  3.63e-02
                  nbkg    1.0001e+07 +/-  3.24e+03
                  nsig    9.2425e+03 +/-  6.92e+02
                 sigma    4.5747e-01 +/-  2.59e-02