Welcome to Sherpa, Daniel Reichelt on ip3-cpu4.phyip3.dur.ac.uk. Initialization of framework underway ... Local time: Wed Jan 29 08:57:26 2025 Seed mode: '*' Memory limit: 502.838 GB Seed: 1068 ┌──────────────────────────────────────────────────────────────────────────────┐ │  ._ │ │  .-#. │ │  .--+@. . │ │  .----@@. +#- │ │  .-----+@@. +**@- SHERPA v3.1.x (Erebus) │ │  :- .-------@@@+***#@- │ │  :=#* .--------+@+*****@@- Monte Carlo event generator │ │  :===@* .----------+******#@@- │ │  :====#@*----------+********@@@- https://sherpa-team.gitlab.io │ │  :======@@*--------+*********#@@@- │ │ │ │ Authors: Enrico Bothmann, Lois Flower, Christian Gutschow, │ │ Stefan Hoeche, Mareen Hoppe, Joshua Isaacson, │ │ Max Knobbe, Frank Krauss, Peter Meinzinger, │ │ Davide Napoletano, Alan Price, Daniel Reichelt, │ │ Marek Schoenherr, Steffen Schumann, Frank Siegert │ │ Former Authors: Gurpreet Singh Chahal, Timo Fischer, Tanju Gleisberg, │ │ Hendrik Hoeth, Johannes Krause, Silvan Kuttimalai, │ │ Ralf Kuhn, Thomas Laubrich, Sebastian Liebschner, │ │ Andreas Schaelicke, Holger Schulz, Jan Winter │ │ │ │ Users are kindly asked to cite SciPost Phys 7 (2019) 3, 034. │ │ │ │ This program uses a lot of genuine and original research work by others. │ │ Users are encouraged to also cite the various original publications. │ │ │ └──────────────────────────────────────────────────────────────────────────────┘ WARNING: You are using an unsupported development branch. Git branch: master Revision: bbdb0a3424e31c55cb7d4b228e23d79fce6682a7. -> CSSHOWER++/Calculators has local modifications: 4bc13e170c26ca5801c20bccc1055904 -> CSSHOWER++/Showers has local modifications: a109c7fbf0673af17f111093a5ee6d42 Initializing hadron particle information ... Initializing beam spectra ... Type: Collider Setup Beam 1: P+ (enabled = 0, momentum = (6800,0,0,6800)) Beam 2: P+ (enabled = 0, momentum = (6800,0,0,-6800)) Initializing PDFs ... Hard scattering: PDF4LHC21_40_pdfas + PDF4LHC21_40_pdfas MPI: PDF4LHC21_40_pdfas + PDF4LHC21_40_pdfas Fixed electroweak parameters Input scheme: Gmu scheme, input: GF, m_W, m_Z, m_h, widths Ren. scheme: Gmu Parameters: sin^2(\theta_W) = 0.223043 - 0.00110541 i vev = 246.22 Set \alpha according to EW scheme 1/\alpha(0) = 137.036 1/\alpha(def) = 132.12 Particle data: ┌─────────────────────────────────────────────────────────────────────────────────────────┐ │ Name Kf-code Mass Width Stable Massive Active Yukawa │ ├─────────────────────────────────────────────────────────────────────────────────────────┤ │ d 1 0.01 0 1 0 1 0 │ │ u 2 0.005 0 1 0 1 0 │ │ s 3 0.2 0 1 0 1 0 │ │ c 4 1.42 0 1 0 1 0 │ │ b 5 4.92 0 1 0 1 0 │ │ t 6 172.5 1.32 0 1 1 172.5 │ │ e- 11 0.000511 0 1 0 1 0 │ │ ve 12 0 0 1 0 1 0 │ │ mu- 13 0.105 0 1 0 1 0 │ │ vmu 14 0 0 1 0 1 0 │ │ tau- 15 1.777 2.26735e-12 0 0 1 0 │ │ vtau 16 0 0 1 0 1 0 │ │ G 21 0 0 1 0 1 0 │ │ P 22 0 0 1 0 1 0 │ │ Z 23 91.1876 2.4952 0 1 1 91.1876 │ │ W+ 24 80.379 2.085 0 1 1 80.379 │ │ h0 25 125 0 0 1 1 125 │ │ Instanton 999 0 0 0 0 1 0 │ └─────────────────────────────────────────────────────────────────────────────────────────┘ Particle containers: ┌─────────────────────────────────────────────────────────────────────────────────────────┐ │ Name Kf-code Constituents │ ├─────────────────────────────────────────────────────────────────────────────────────────┤ │ l 90 e-, e+, mu-, mu+, tau-, tau+ │ │ v 91 ve, veb, vmu, vmub, vtau, vtaub │ │ f 92 d, db, u, ub, s, sb, c, cb, b, bb, e-, e+, mu-, mu+, │ │ tau-, tau+, ve, veb, vmu, vmub, vtau, vtaub │ │ j 93 d, db, u, ub, s, sb, c, cb, b, bb, G │ │ Q 94 d, db, u, ub, s, sb, c, cb, b, bb │ │ ewj 98 d, db, u, ub, s, sb, c, cb, b, bb, G, P │ └─────────────────────────────────────────────────────────────────────────────────────────┘ Reading in parameters for P+ yields: Primordial k_T Form = None Primordial k_T Recoil = Beam_vs_Shower Matter Form = Single_Gaussian BEAM_SPECTATOR_KTEXPO = 5 BEAM_SPECTATOR_KTMAX = 1 BEAM_SPECTATOR_MEAN = 0 BEAM_SPECTATOR_Q2 = 0.77 BEAM_SPECTATOR_SIGMA = 0.25 ENERGY_SCALING_EXPO = 0.08 MATTER_FRACTION_1 = 1 MATTER_RADIUS_1 = 0.86 MATTER_RADIUS_2 = 0 REFERENCE_ENERGY = 7000 SHOWER_INITIATOR_KTEXPO = 5.12 SHOWER_INITIATOR_KTMAX = 2.7 SHOWER_INITIATOR_MEAN = 1 SHOWER_INITIATOR_Q2 = 0.77 SHOWER_INITIATOR_SIGMA = 1.1 Initializing primordial transverse momentum ... Initializing remnants ... Hard process: P+ (Hadron) + P+ (Hadron) Initializing showers ... Initializing matrix elements for the hard processes ... Initializing Comix ... Massive PS flavours for Comix: (c,cb,b,bb,e-,e+,mu-,mu+,tau-,tau+) Massive PS flavours for Amegic: (c,cb,b,bb,e-,e+,mu-,mu+,tau-,tau+) Massive PS flavours for Internal: (c,cb,b,bb,e-,e+,mu-,mu+,tau-,tau+) Building processes (3 ME generators, 1 process blocks) ... Setting up processes ME_Generators::LoadGenerator(): Try loading 'OpenLoops' from 'libSherpaOpenLoops'. Initialising OpenLoops generator from /mt/home/dreichelt/hepsoftware/src/OpenLoops/. #################################################################### # ___ ___ ____ _ _ __ __ ___ __ ___ # # / \ |__| |__ |\ | | / \ / \ |__| /__ __/ # # \___/ | |___ | \| |__ \__/ \__/ | __/ /__ # # You are using OpenLoops 2 to evaluate loop amplitudes # # F. Buccioni, J.-N. Lang, J. Lindert, P. Maierhoefer, # # S. Pozzorini, M. Zoller, H. Zhang # # Eur.Phys.J. C79 (2019) no.10, 866 # # arXiv:1907.13071 # #################################################################### ......................................................................................................................................................................................................................................................................................................................................................... done (257 MB, 12s/12s) Performing tests . Amplitude::GaugeTest(): Large deviation { 2.24258382024e-22 vs 2.24258382026e-22 => -6.66511290603e-12 } ...... Amplitude::GaugeTest(): Large deviation { 1.19595489884e-21 vs 1.19595489884e-21 => -5.21449550206e-12 } ...... Amplitude::GaugeTest(): Large deviation { 8.92662074122e-22 vs 8.92662074119e-22 => 2.94830826419e-12 } ... Amplitude::GaugeTest(): Large deviation { 4.41824198309e-24 vs 4.41824198311e-24 => -5.28199706196e-12 } ............ Amplitude::GaugeTest(): Large deviation { 2.95125605855e-22 vs 2.95125605854e-22 => 4.3820502782e-12 } ... Amplitude::GaugeTest(): Large deviation { 7.46027302951e-19 vs 7.46027302948e-19 => 4.23994173104e-12 } ..WARNING: last allowed error message from 'GaugeTest'  Amplitude::GaugeTest(): Large deviation { 5.67936196188e-22 vs 5.67936196185e-22 => 4.3103298708e-12 } ....................................................................................................... done (257 MB, 0s/0s) Initializing scales........................................................................ done (261 MB, 0s/0s) Initializing the beam remnants ... Multiple interactions initialized id = 2, name = None, type = 0 Underlying event/multiple interactions initialized MI[2]: on = 0 (type = 0, None) Initialized fragmentation Initialized soft photons Initialized on-the-fly reweighting ===> AddOns/Rivet has local modifications df7736c863ac2b9155db51c777b9f0c4 <=== Read in channels from directory: Results/Amegic/MC_2_3__j__j__h0__j__j__QCD(BVI) Calculating xs for '2_3__j__j__h0__j__j__QCD(BVI)' (Amegic+OpenLoops) ... 2_3__j__j__h0__j__j__QCD(BVI) : 5.96100664476 pb +- ( 0.0634172095454 pb = 1.06386745268 % )  exp. eff: 0.104225558705 % Read in channels from directory: Results/Comix/MC_2_4__j__j__h0__j__j__j__QCD(RS) Calculating xs for '2_4__j__j__h0__j__j__j__QCD(RS)' (Comix) ... 2_4__j__j__h0__j__j__j__QCD(RS) : 0.156547087194 pb +- ( 0.0550446800857 pb = 35.1617401973 % )  exp. eff: 0.000272710578471 % reduce max for 2_3__j__j__h0__j__j__QCD(BVI) to 0.39657075534 ( eps = 0.001 -> exp. eff 0.00262817056735 ) reduce max for 2_4__j__j__h0__j__j__j__QCD(RS) to 0.456062791903 ( eps = 0.001 -> exp. eff 5.97967173191e-06 ) ┌──────────────────────────────────────────────────────────────────────────────┐ │ SHERPA generates events with the following structure: │ │ Event generation Weighted │ │ Perturbative Signal_Processes │ │ Perturbative Minimum_Bias: None │ │ Perturbative Hard_Decays │ │ Perturbative Jet_Evolution:CSS │ │ Perturbative Lepton_FS_QED_Corrections:Photons │ │ Perturbative Multiple_Interactions: None │ │ Hadronization Beam_Remnants:Parametrised │ │ Hadronization Hadronization: None │ │ Hadronization Hadron_Decays │ │ Userhook None │ │ Analysis Rivet │ │ Reweighting 6 variations │ └──────────────────────────────────────────────────────────────────────────────┘ Event 1 ( 3s elapsed / 81d 17h 6m 36s left ) -> ETA: Mon Apr 21 03:04 XS = 7.51492159431 pb +- ( 7.51492159431 pb = 100 % ) Event 2 ( 3s elapsed / 40d 23h 19m 56s left ) -> ETA: Tue Mar 11 08:17 XS = 7.5461523216 pb +- ( 0.0312307272818 pb = 0 % ) Event 3 ( 3s elapsed / 27d 7h 33m 16s left ) -> ETA: Tue Feb 25 16:30 XS = 5.03076847131 pb +- ( 2.51544847566 pb = 50 % ) Event 4 ( 3s elapsed / 20d 11h 39m 56s left ) -> ETA: Tue Feb 18 20:37 XS = 3.77252278386 pb +- ( 2.17874338251 pb = 57 % ) Event 5 ( 3s elapsed / 16d 10h 26m 36s left ) -> ETA: Fri Feb 14 19:24 XS = 3.01797062863 pb +- ( 1.84864885554 pb = 61 % ) Event 6 ( 3s elapsed / 13d 16h 42m 9s left ) -> ETA: Wed Feb 12 01:39 XS = 2.15204161917 pb +- ( 1.39277435435 pb = 64 % ) Event 7 ( 3s elapsed / 11d 17h 44m 42s left ) -> ETA: Mon Feb 10 02:42 XS = 1.88424150835 pb +- ( 1.23554935189 pb = 65 % ) Event 8 ( 3s elapsed / 10d 7h 13m 16s left ) -> ETA: Sat Feb 08 16:10 XS = 1.67489121558 pb +- ( 1.10958066716 pb = 66 % ) Event 9 ( 3s elapsed / 9d 4h 22m 9s left ) -> ETA: Fri Feb 07 13:19 XS = 1.45409438795 pb +- ( 0.911948509775 pb = 62 % ) Event 10 ( 3s elapsed / 8d 6h 19m 56s left ) -> ETA: Thu Feb 06 15:17 XS = 1.0342580016 pb +- ( 0.932364911595 pb = 90 % ) Event 20 ( 3s elapsed / 4d 4h 33m 16s left ) -> ETA: Sun Feb 02 13:30 XS = 0.477861950533 pb +- ( 0.432608323535 pb = 90 % ) Event 30 ( 3s elapsed / 2d 19h 57m 42s left ) -> ETA: Sat Feb 01 04:55 XS = 0.996799562085 pb +- ( 0.510066941119 pb = 51 % ) Event 40 ( 3s elapsed / 2d 3h 39m 56s left ) -> ETA: Fri Jan 31 12:37 XS = 0.776908906644 pb +- ( 0.398761601157 pb = 51 % ) Event 50 ( 3s elapsed / 1d 17h 53m 16s left ) -> ETA: Fri Jan 31 02:50 XS = 0.808382149516 pb +- ( 0.352655023292 pb = 43 % ) Event 60 ( 3s elapsed / 1d 11h 5m 29s left ) -> ETA: Thu Jan 30 20:03 XS = 0.739191330868 pb +- ( 0.306220843554 pb = 41 % ) Event 70 ( 3s elapsed / 1d 6h 33m 16s left ) -> ETA: Thu Jan 30 15:30 XS = 0.638553374432 pb +- ( 0.266412074784 pb = 41 % ) Event 80 ( 3s elapsed / 1d 3h 46s left ) -> ETA: Thu Jan 30 11:58 XS = 0.566106851169 pb +- ( 0.233182912076 pb = 41 % ) Event 90 ( 3s elapsed / 1d 15m 29s left ) -> ETA: Thu Jan 30 09:13 XS = 0.499810434803 pb +- ( 0.205454317817 pb = 41 % ) Event 100 ( 3s elapsed / 22h 3m 16s left ) -> ETA: Thu Jan 30 07:00 XS = 0.809357981211 pb +- ( 0.375099772974 pb = 46 % ) Event 200 ( 4s elapsed / 12h 18m 15s left ) -> ETA: Wed Jan 29 21:15 XS = 1.48350654625 pb +- ( 0.877628034192 pb = 59 % ) Event 300 ( 4s elapsed / 9h 3m 15s left ) -> ETA: Wed Jan 29 18:00 XS = -0.942354293063 pb +- ( 2.67738892641 pb = -284 % ) Event 400 ( 5s elapsed / 7h 24m 4s left ) -> ETA: Wed Jan 29 16:21 XS = -0.468786064417 pb +- ( 2.04236146388 pb = -435 % ) Event 500 ( 5s elapsed / 6h 23m 14s left ) -> ETA: Wed Jan 29 15:20 XS = -2.22070248075 pb +- ( 4.05241040053 pb = -182 % ) Event 600 ( 6s elapsed / 5h 41m left ) -> ETA: Wed Jan 29 14:38 XS = -0.432677705474 pb +- ( 3.44669506851 pb = -796 % ) Event 700 ( 6s elapsed / 5h 13m 13s left ) -> ETA: Wed Jan 29 14:10 XS = 1.93138142863 pb +- ( 3.30349187368 pb = 171 % ) Event 800 ( 7s elapsed / 4h 51m 57s left ) -> ETA: Wed Jan 29 13:49 XS = 2.45690709786 pb +- ( 2.9782521654 pb = 121 % ) Event 900 ( 7s elapsed / 4h 34m 41s left ) -> ETA: Wed Jan 29 13:32 XS = 3.55833645697 pb +- ( 2.72991167795 pb = 76 % ) Event 1000 ( 7s elapsed / 4h 22m 32s left ) -> ETA: Wed Jan 29 13:20 XS = 4.18445138786 pb +- ( 2.52012887965 pb = 60 % ) Event 2000 ( 12s elapsed / 3h 24m 37s left ) -> ETA: Wed Jan 29 12:22 XS = 4.53024384785 pb +- ( 1.58976285209 pb = 35 % ) Event_Handler::GenerateStandardPerturbativeEvent:("Invalid weight w=nan. Rejecting event.") Event 3000 ( 16s elapsed / 3h 3m 43s left ) -> ETA: Wed Jan 29 12:01 XS = 5.94596011292 pb +- ( 1.43361701033 pb = 24 % ) Event 4000 ( 21s elapsed / 2h 54m 48s left ) -> ETA: Wed Jan 29 11:52 XS = 6.77303407788 pb +- ( 1.62466254207 pb = 23 % ) Event 5000 ( 25s elapsed / 2h 47m 58s left ) -> ETA: Wed Jan 29 11:46 XS = 5.98742469355 pb +- ( 1.34108108463 pb = 22 % ) Event 6000 ( 29s elapsed / 2h 45m left ) -> ETA: Wed Jan 29 11:43 XS = 5.9646286321 pb +- ( 1.14476263148 pb = 19 % ) Event 7000 ( 34s elapsed / 2h 43m 39s left ) -> ETA: Wed Jan 29 11:41 XS = 5.43030491111 pb +- ( 0.997681516718 pb = 18 % ) Event 8000 ( 39s elapsed / 2h 42m 18s left ) -> ETA: Wed Jan 29 11:40 XS = 5.54865300813 pb +- ( 0.908240263063 pb = 16 % ) Event 9000 ( 43s elapsed / 2h 41m 14s left ) -> ETA: Wed Jan 29 11:39 XS = 5.94063324337 pb +- ( 0.911241508893 pb = 15 % ) Event 10000 ( 48s elapsed / 2h 40m 31s left ) -> ETA: Wed Jan 29 11:38 XS = 5.88985849663 pb +- ( 0.828923416531 pb = 14 % ) Event 20000 ( 1m 34s elapsed / 2h 36m 44s left ) -> ETA: Wed Jan 29 11:35 XS = 4.62359821616 pb +- ( 0.985283494074 pb = 21 % ) Event_Handler::GenerateStandardPerturbativeEvent:("Invalid weight w=nan. Rejecting event.") Event 30000 ( 2m 20s elapsed / 2h 34m 16s left ) -> ETA: Wed Jan 29 11:34 XS = 5.19864533258 pb +- ( 0.716335508658 pb = 13 % ) Event 40000 ( 3m 7s elapsed / 2h 33m 5s left ) -> ETA: Wed Jan 29 11:33 XS = 5.32140599642 pb +- ( 0.573232020717 pb = 10 % ) Event 50000 ( 3m 53s elapsed / 2h 32m 4s left ) -> ETA: Wed Jan 29 11:33 XS = 5.45038422815 pb +- ( 0.48281453301 pb = 8 % ) Event 60000 ( 4m 40s elapsed / 2h 31m 5s left ) -> ETA: Wed Jan 29 11:33 XS = 5.54439193455 pb +- ( 0.45212921734 pb = 8 % ) Event_Handler::GenerateStandardPerturbativeEvent:("Invalid weight w=nan. Rejecting event.") Event 70000 ( 5m 25s elapsed / 2h 29m 42s left ) -> ETA: Wed Jan 29 11:32 XS = 5.67729629003 pb +- ( 0.403479868865 pb = 7 % ) Event 80000 ( 6m 11s elapsed / 2h 28m 47s left ) -> ETA: Wed Jan 29 11:32 XS = 5.66727917319 pb +- ( 0.362294134718 pb = 6 % ) Event 90000 ( 6m 58s elapsed / 2h 28m 1s left ) -> ETA: Wed Jan 29 11:32 XS = 5.66972853117 pb +- ( 0.333882144057 pb = 5 % ) Event_Handler::GenerateStandardPerturbativeEvent:("Invalid weight w=nan. Rejecting event.") Event 100000 ( 7m 45s elapsed / 2h 27m 21s left ) -> ETA: Wed Jan 29 11:32 XS = 5.71705981808 pb +- ( 0.309466059919 pb = 5 % ) Event_Handler::GenerateStandardPerturbativeEvent:("Invalid weight w=nan. Rejecting event.") Event_Handler::GenerateStandardPerturbativeEvent:("Invalid weight w=nan. Rejecting event.") Event 200000 ( 15m 30s elapsed / 2h 19m 32s left ) -> ETA: Wed Jan 29 11:32 XS = 6.0710833087 pb +- ( 0.228195736074 pb = 3 % ) Event 300000 ( 23m 20s elapsed / 2h 12m 13s left ) -> ETA: Wed Jan 29 11:33 XS = 6.05559165552 pb +- ( 0.199742977796 pb = 3 % ) Event_Handler::GenerateStandardPerturbativeEvent:("Invalid weight w=nan. Rejecting event.") Event 400000 ( 31m 12s elapsed / 2h 4m 51s left ) -> ETA: Wed Jan 29 11:33 XS = 6.08914483861 pb +- ( 0.216523406664 pb = 3 % ) Event_Handler::GenerateStandardPerturbativeEvent:("Invalid weight w=nan. Rejecting event.") Event 500000 ( 39m 9s elapsed / 1h 57m 27s left ) -> ETA: Wed Jan 29 11:34 XS = 6.13397769591 pb +- ( 0.219401599484 pb = 3 % ) Event 600000 ( 47m 7s elapsed / 1h 49m 56s left ) -> ETA: Wed Jan 29 11:34 XS = 6.07132130867 pb +- ( 0.191459844743 pb = 3 % ) Event_Handler::GenerateStandardPerturbativeEvent:("Invalid weight w=nan. Rejecting event.") Event 700000 ( 55m 9s elapsed / 1h 42m 26s left ) -> ETA: Wed Jan 29 11:35 XS = 6.13234413488 pb +- ( 0.173119897859 pb = 2 % ) Event_Handler::GenerateStandardPerturbativeEvent:("Invalid weight w=nan. Rejecting event.") Event 800000 ( 1h 3m 14s elapsed / 1h 34m 51s left ) -> ETA: Wed Jan 29 11:35 XS = 6.16555804277 pb +- ( 0.158129524266 pb = 2 % ) Event 900000 ( 1h 11m 20s elapsed / 1h 27m 11s left ) -> ETA: Wed Jan 29 11:36  Memory usage increased by 18 MB, now 319 MB.  This might indicate a memory leak! Please monitor this process closely. XS = 6.07624787898 pb +- ( 0.147092679661 pb = 2 % ) Event 1000000 ( 1h 19m 30s elapsed / 1h 19m 30s left ) -> ETA: Wed Jan 29 11:36 XS = 6.02606387952 pb +- ( 0.151562166312 pb = 2 % ) Event 1100000 ( 1h 27m 49s elapsed / 1h 11m 51s left ) -> ETA: Wed Jan 29 11:37 XS = 5.97436206791 pb +- ( 0.147180328738 pb = 2 % ) Event_Handler::GenerateStandardPerturbativeEvent:("Invalid weight w=nan. Rejecting event.") Event 1200000 ( 1h 36m 12s elapsed / 1h 4m 8s left ) -> ETA: Wed Jan 29 11:38 XS = 5.93713100007 pb +- ( 0.139684974042 pb = 2 % ) Event 1300000 ( 1h 44m 39s elapsed / 56m 21s left ) -> ETA: Wed Jan 29 11:38 XS = 5.9444763274 pb +- ( 0.135610715961 pb = 2 % ) Event_Handler::GenerateStandardPerturbativeEvent:("Invalid weight w=nan. Rejecting event.") Event 1400000 ( 1h 53m 7s elapsed / 48m 29s left ) -> ETA: Wed Jan 29 11:39 XS = 5.99581242054 pb +- ( 0.129555885722 pb = 2 % ) Event_Handler::GenerateStandardPerturbativeEvent:("Invalid weight w=nan. Rejecting event.") Event_Handler::GenerateStandardPerturbativeEvent:("Invalid weight w=nan. Rejecting event.") Event 1500000 ( 2h 1m 41s elapsed / 40m 33s left ) -> ETA: Wed Jan 29 11:39 XS = 6.01657481816 pb +- ( 0.123508029269 pb = 2 % ) Event 1600000 ( 2h 10m 14s elapsed / 32m 33s left ) -> ETA: Wed Jan 29 11:40 XS = 5.88707577601 pb +- ( 0.136355603217 pb = 2 % ) Event_Handler::GenerateStandardPerturbativeEvent:("Invalid weight w=nan. Rejecting event.") Event_Handler::GenerateStandardPerturbativeEvent:("Invalid weight w=nan. Rejecting event.")