Unable to produce events of VBF gamma at NLO

Dear experts,

We are trying to produce VBF gamma events at NLO. The MG version is 2.9.12. We've changed the FKS_params.dat, but we still got errors and many warnings from
genps_fks.f.

Pasted below are the process, FKS_params, and run cards that we used for the generation and fragments of the log file. I noticed that the "Collinear test" failed. Do you know how to solve this problem?

Best,
Jie

-------------------------------- process card --------------------------------
import model loop_sm-ckm_no_b_mass
generate p p > a j j / h t t~ QCD=0 [QCD]
output vbfy
-------------------------------- FKS_params --------------------------------
#IRPoleCheckThreshold
-1.0d0
#PrecisionVirtualAtRunTime
-1d0
-------------------------------- run card --------------------------------
#*******************
# Running parameters
#*******************
#
#***********************************************************************
# Tag name for the run (one word) *
#***********************************************************************
  tag_1 = run_tag ! name of the run
#***********************************************************************
# Number of LHE events (and their normalization) and the required *
# (relative) accuracy on the Xsec. *
# These values are ignored for fixed order runs *
#***********************************************************************
  10000 = nevents ! Number of unweighted events requested
  -1.0 = req_acc ! Required accuracy (-1=auto determined from nevents)
  -1 = nevt_job ! Max number of events per job in event generation.
                 ! (-1= no split).
#***********************************************************************
# Normalize the weights of LHE events such that they sum or average to *
# the total cross section *
#***********************************************************************
  average = event_norm ! valid settings: average, sum, bias
#***********************************************************************
# Number of points per itegration channel (ignored for aMC@NLO runs) *
#***********************************************************************
  0.01 = req_acc_fo ! Required accuracy (-1=ignored, and use the
                           ! number of points and iter. below)
# These numbers are ignored except if req_acc_FO is equal to -1
  5000 = npoints_fo_grid ! number of points to setup grids
  4 = niters_fo_grid ! number of iter. to setup grids
  10000 = npoints_fo ! number of points to compute Xsec
  6 = niters_fo ! number of iter. to compute Xsec
#***********************************************************************
# Random number seed *
#***********************************************************************
  0 = iseed ! rnd seed (0=assigned automatically=default))
#***********************************************************************
# Collider type and energy *
#***********************************************************************
  1 = lpp1 ! beam 1 type (0 = no PDF)
  1 = lpp2 ! beam 2 type (0 = no PDF)
  6500.0 = ebeam1 ! beam 1 energy in GeV
  6500.0 = ebeam2 ! beam 2 energy in GeV
#***********************************************************************
# PDF choice: this automatically fixes also alpha_s(MZ) and its evol. *
#***********************************************************************
  nn23nlo = pdlabel ! PDF set
  244600 = lhaid ! If pdlabel=lhapdf, this is the lhapdf number. Only
              ! numbers for central PDF sets are allowed. Can be a list;
              ! PDF sets beyond the first are included via reweighting.
#***********************************************************************
# Include the NLO Monte Carlo subtr. terms for the following parton *
# shower (HERWIG6 | HERWIGPP | PYTHIA6Q | PYTHIA6PT | PYTHIA8) *
# WARNING: PYTHIA6PT works only for processes without FSR!!!! *
#***********************************************************************
  PYTHIA8 = parton_shower
  1.0 = shower_scale_factor ! multiply default shower starting
                                  ! scale by this factor
#***********************************************************************
# Renormalization and factorization scales *
# (Default functional form for the non-fixed scales is the sum of *
# the transverse masses divided by two of all final state particles *
# and partons. This can be changed in SubProcesses/set_scales.f or via *
# dynamical_scale_choice option) *
#***********************************************************************
  False = fixed_ren_scale ! if .true. use fixed ren scale
  False = fixed_fac_scale ! if .true. use fixed fac scale
  91.118 = mur_ref_fixed ! fixed ren reference scale
  91.118 = muf_ref_fixed ! fixed fact reference scale
  -1 = dynamical_scale_choice ! Choose one (or more) of the predefined
           ! dynamical choices. Can be a list; scale choices beyond the
           ! first are included via reweighting
  1.0 = mur_over_ref ! ratio of current muR over reference muR
  1.0 = muf_over_ref ! ratio of current muF over reference muF
#***********************************************************************
# Reweight variables for scale dependence and PDF uncertainty *
#***********************************************************************
  1.0, 2.0, 0.5 = rw_rscale ! muR factors to be included by reweighting
  1.0, 2.0, 0.5 = rw_fscale ! muF factors to be included by reweighting
  True = reweight_scale ! Reweight to get scale variation using the
            ! rw_rscale and rw_fscale factors. Should be a list of
            ! booleans of equal length to dynamical_scale_choice to
            ! specify for which choice to include scale dependence.
  False = reweight_pdf ! Reweight to get PDF uncertainty. Should be a
            ! list booleans of equal length to lhaid to specify for
            ! which PDF set to include the uncertainties.
#***********************************************************************
# Store reweight information in the LHE file for off-line model- *
# parameter reweighting at NLO+PS accuracy *
#***********************************************************************
  False = store_rwgt_info ! Store info for reweighting in LHE file
#***********************************************************************
# ickkw parameter: *
# 0: No merging *
# 3: FxFx Merging - WARNING! Applies merging only at the hard-event *
# level. After showering an MLM-type merging should be applied as *
# well. See http://amcatnlo.cern.ch/FxFx_merging.htm for details. *
# 4: UNLOPS merging (with pythia8 only). No interface from within *
# MG5_aMC available, but available in Pythia8. *
# -1: NNLL+NLO jet-veto computation. See arxiv:1412.8408 [hep-ph]. *
#***********************************************************************
  0 = ickkw
#***********************************************************************
#
#***********************************************************************
# BW cutoff (M+/-bwcutoff*Gamma). Determines which resonances are *
# written in the LHE event file *
#***********************************************************************
  15.0 = bwcutoff
#***********************************************************************
# Cuts on the jets. Jet clustering is performed by FastJet. *
# - When matching to a parton shower, these generation cuts should be *
# considerably softer than the analysis cuts. *
# - More specific cuts can be specified in SubProcesses/cuts.f *
#***********************************************************************
  1.0 = jetalgo ! FastJet jet algorithm (1=kT, 0=C/A, -1=anti-kT)
  0.7 = jetradius ! The radius parameter for the jet algorithm
  10.0 = ptj ! Min jet transverse momentum
  -1.0 = etaj ! Max jet abs(pseudo-rap) (a value .lt.0 means no cut)
#***********************************************************************
# Cuts on the charged leptons (e+, e-, mu+, mu-, tau+ and tau-) *
# More specific cuts can be specified in SubProcesses/cuts.f *
#***********************************************************************
  0.0 = ptl ! Min lepton transverse momentum
  -1.0 = etal ! Max lepton abs(pseudo-rap) (a value .lt.0 means no cut)
  0.0 = drll ! Min distance between opposite sign lepton pairs
  0.0 = drll_sf ! Min distance between opp. sign same-flavor lepton pairs
  0.0 = mll ! Min inv. mass of all opposite sign lepton pairs
  30.0 = mll_sf ! Min inv. mass of all opp. sign same-flavor lepton pairs
#***********************************************************************
# Photon-isolation cuts, according to hep-ph/9801442. When ptgmin=0, *
# all the other parameters are ignored. *
# More specific cuts can be specified in SubProcesses/cuts.f *
#***********************************************************************
  20.0 = ptgmin ! Min photon transverse momentum
  -1.0 = etagamma ! Max photon abs(pseudo-rap)
  0.4 = r0gamma ! Radius of isolation code
  1.0 = xn ! n parameter of eq.(3.4) in hep-ph/9801442
  1.0 = epsgamma ! epsilon_gamma parameter of eq.(3.4) in hep-ph/9801442
  True = isoem ! isolate photons from EM energy (photons and leptons)
#***********************************************************************
# Cuts associated to MASSIVE particles identified by their PDG codes. *
# All cuts are applied to both particles and anti-particles, so use *
# POSITIVE PDG CODES only. Example of the syntax is {6 : 100} or *
# {6:100, 25:200} for multiple particles *
#***********************************************************************
  {} = pt_min_pdg ! Min pT for a massive particle
  {} = pt_max_pdg ! Max pT for a massive particle
  {} = mxx_min_pdg ! inv. mass for any pair of (anti)particles
#***********************************************************************
# For aMCfast+APPLGRID use in PDF fitting (http://amcfast.hepforge.org)*
#***********************************************************************
  0 = iappl ! aMCfast switch (0=OFF, 1=prepare grids, 2=fill grids)
#***********************************************************************
-------------------------------- fragments from the log file --------------------------------

INFO: Update the dependent parameter of the param_card.dat
INFO: Starting run
Not able to open file /data/pubfs/xiaoj/genval/mg29x/MG5_aMC_v2_9_12/vbfy/crossx.html since no program configured.Please set one in ./input/mg5_configuration.txt
INFO: Compiling the code
INFO: Using built-in libraries for PDFs
INFO: Compiling source...
INFO: ...done, continuing with P* directories
INFO: Compiling directories...
INFO: Compiling on 104 cores
INFO: Compiling P0_uu_auu_no_htt...
INFO: Compiling P0_uc_auc_no_htt...
INFO: Compiling P0_ud_aud_no_htt...
......
Note: The following floating-point exceptions are signalling: IEEE_INVALID_FLAG IEEE_DIVIDE_BY_ZERO
Note: The following floating-point exceptions are signalling: IEEE_INVALID_FLAG IEEE_DIVIDE_BY_ZERO
Note: The following floating-point exceptions are signalling: IEEE_INVALID_FLAG IEEE_DIVIDE_BY_ZERO
Note: The following floating-point exceptions are signalling: IEEE_INVALID_FLAG IEEE_DIVIDE_BY_ZERO
Note: The following floating-point exceptions are signalling: IEEE_INVALID_FLAG IEEE_DIVIDE_BY_ZERO
Note: The following floating-point exceptions are signalling: IEEE_INVALID_FLAG
Note: The following floating-point exceptions are signalling: IEEE_INVALID_FLAG IEEE_DIVIDE_BY_ZERO
Note: The following floating-point exceptions are signalling: IEEE_INVALID_FLAG IEEE_DIVIDE_BY_ZERO
Note: The following floating-point exceptions are signalling: IEEE_INVALID_FLAG IEEE_DIVIDE_BY_ZERO
Note: The following floating-point exceptions are signalling: IEEE_INVALID_FLAG IEEE_DIVIDE_BY_ZERO
Note: The following floating-point exceptions are signalling: IEEE_INVALID_FLAG IEEE_DIVIDE_BY_ZERO
Note: The following floating-point exceptions are signalling: IEEE_INVALID_FLAG
1INFO: P0_uu_auu_no_htt done.
INFO: Compiling P0_dc_adc_no_htt...
INFO: P0_cbx_acbx_no_htt done.
INFO: Compiling P0_dc_acs_no_htt...
INFO: P0_uux_accx_no_htt done.
INFO: Compiling P0_dc_acb_no_htt...
INFO: P0_ub_aub_no_htt done.
INFO: Compiling P0_dd_add_no_htt...
INFO: P0_uux_assx_no_htt done.
INFO: Compiling P0_ds_ads_no_htt...
INFO: P0_ud_aud_no_htt done.
INFO: Compiling P0_dux_adux_no_htt...
INFO: P0_uc_auc_no_htt done.
INFO: Compiling P0_dux_adcx_no_htt...
INFO: P0_ubx_aubx_no_htt done.
INFO: Compiling P0_dux_auxs_no_htt...
INFO: P0_uux_addx_no_htt done.
INFO: Compiling P0_dux_ascx_no_htt...
INFO: P0_us_aus_no_htt done.
INFO: Compiling P0_dux_auxb_no_htt...
INFO: P0_udx_audx_no_htt done.
INFO: Compiling P0_dux_abcx_no_htt...
......
INFO: P0_cxb_abux_no_htt done.
INFO: Checking test output:
INFO: P0_uu_auu_no_htt
INFO: Result for test_ME:
INFO: Passed.
INFO: Result for test_MC:
INFO: Passed.
INFO: Result for check_poles:
INFO: Poles successfully cancel for 20 points over 20 (tolerance=-1.0e+00)
INFO: P0_uc_auc_no_htt
INFO: Result for test_ME:
INFO: Passed.
INFO: Result for test_MC:
INFO: Passed.
INFO: Result for check_poles:
INFO: Poles successfully cancel for 20 points over 20 (tolerance=-1.0e+00)
INFO: P0_ud_aud_no_htt
INFO: Result for test_ME:
INFO: Passed.
INFO: Result for test_MC:
INFO: Passed.
INFO: Result for check_poles:
INFO: Poles successfully cancel for 20 points over 20 (tolerance=-1.0e+00)
INFO: P0_ud_aus_no_htt
INFO: Result for test_ME:
INFO: Output of the failing test:
 Enter 0 to compute MC/MC(limit)
       1 to compute MC/ME(limit)
       2 to compute ME/ME(limit)
 Enter xi_i, y_ij to be used in coll/soft tests
  Enter -2 to generate them randomly
 Enter number of tests for soft and collinear limits
 A PDF is used, so alpha_s(MZ) is going to be modified
 Old value of alpha_s from param_card: 0.11799999999999999
  ****************************************

       NNPDFDriver version 1.0.3
   Grid: NNPDF23nlo_as_0119_qed_mem0.grid
  ****************************************
 New value of alpha_s from PDF nn23nlo: 0.11899999999999999
WARNING: the value of maxjetflavorspecified in the run_card ( 4) is inconsistent with the number of light flavours inthe model. Hence it will be set to: 5
 Give FKS configuration number ("0" loops over all)

 =================================================

 NEW FKS CONFIGURATION:
 FKS configuration number is 1
 FKS partons are: i= 6 j= 1
 with PDGs: i= 21 j= 2

 Enter graph number (iconfig), '0' loops over all graphs
Using random seed offsets: 1 , 4 , 0
  with seed 32
 Ranmar initialization seeds 10730 9410
tau_min 1 1 : 0.00000E+00 -- 0.40000E+02
tau_min 2 1 : 0.00000E+00 -- 0.40000E+02
tau_min 3 1 : 0.40000E+02 0.40000E+02 0.40000E+02
tau_min 4 1 : 0.40000E+02 0.40000E+02 0.40000E+02
tau_min 5 1 : 0.00000E+00 -- 0.40000E+02
tau_min 6 1 : 0.00000E+00 -- 0.40000E+02

 WARNING #10 in genps_fks.f -100 0.17053065963580905 0.99907538062500001
 WARNING #10 in genps_fks.f 0 0.17053065963580905 0.99907538062500001
 WARNING #10 in genps_fks.f -100 0.20126262015683660 0.99907538062500001
...
 WARNING #10 in genps_fks.f -100 0.18851280998305087 0.99907538062500001
 WARNING #10 in genps_fks.f 0 0.18851280998305087 0.99907538062500001
 Soft tests done for (Born) config 1
 Failures: 0
     Soft test 1 PASSED. Fraction of failures: 0.00

 Collinear tests done for (Born) config 1
 Failures: 0
Collinear test 1 PASSED. Fraction of failures: 0.00

 =================================================

 NEW FKS CONFIGURATION:
 FKS configuration number is 2
 FKS partons are: i= 6 j= 2
 with PDGs: i= 21 j= 1

 Enter graph number (iconfig), '0' loops over all graphs
 WARNING #10 in genps_fks.f -100 0.71169286868882253 0.99985060352551935
 WARNING #10 in genps_fks.f 0 0.71169286868882253 0.99985060352551935
 WARNING #10 in genps_fks.f -100 0.59440522587176514 0.99971621754646300
 WARNING #10 in genps_fks.f 0 0.59440522587176514 0.99971621754646300
 WARNING #31a in genps_fks.f -1 74060.195540886314 0.0000000000000000 93688.678741455093 400.00000000000000 -140.94802053442785
......
 WARNING #31a in genps_fks.f -1 26827.252513452484 0.0000000000000000 119831.81250002935 400.00000000000000 -150.82139850452612
 WARNING #10 in genps_fks.f -100 0.20914752853452379 0.99904002243214851
 WARNING #10 in genps_fks.f 0 0.20914752853452379 0.99904002243214851
 No points passed cuts...

 =================================================

 NEW FKS CONFIGURATION:
 FKS configuration number is 3
 FKS partons are: i= 6 j= 4
 with PDGs: i= 21 j= 2

 Enter graph number (iconfig), '0' loops over all graphs

 Soft tests done for (Born) config 1
 Failures: 0
     Soft test 3 PASSED. Fraction of failures: 0.00

 Collinear tests done for (Born) config 1
 Failures: 100
Collinear test 3 FAILED. Fraction of failures: 1.00

 =================================================

 NEW FKS CONFIGURATION:
 FKS configuration number is 4
 FKS partons are: i= 6 j= 5
 with PDGs: i= 21 j= 3

 Enter graph number (iconfig), '0' loops over all graphs

 Soft tests done for (Born) config 1
 Failures: 0
     Soft test 4 PASSED. Fraction of failures: 0.00

 Collinear tests done for (Born) config 1
 Failures: 99
Collinear test 4 FAILED. Fraction of failures: 0.99

 =================================================

 NEW FKS CONFIGURATION:
 FKS configuration number is 5
 FKS partons are: i= 6 j= 1
 with PDGs: i= -2 j= 21

 Enter graph number (iconfig), '0' loops over all graphs
 WARNING #31a in genps_fks.f -1 267.72081795507137 0.0000000000000000 346.50872488057723 400.00000000000000 -2.4593897564725880
 WARNING #31a in genps_fks.f -1 344.58605343788571 0.0000000000000000 346.50854492198971 400.00000000000000 -2.4593886589391918
......
 WARNING #31a in genps_fks.f -1 4821.6067526358202 0.0000000000000000 159746.00000005870 400.00000000000000 -155.18579193872583
 No points passed cuts...
Error detected in "launch auto "
write debug file /data/pubfs/xiaoj/genval/mg29x/MG5_aMC_v2_9_12/vbfy/run_03_tag_1_debug.log
If you need help with this issue please contact us on https://answers.launchpad.net/mg5amcnlo
str : Some tests failed, run cannot continue.
        Please check that widths of final state particles (e.g. top) have been set to 0 in the param_card.dat.
quit