Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ScalableTestSuite_ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTT_Modelica_N_40.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ScalableTestSuite 2.2.0-master/package.mo", uses=false) Using package ScalableTestSuite with version 2.2.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ScalableTestSuite 2.2.0-master/package.mo) Using package Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo) Using package Complex with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo) Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Running command: "" <> buildModelFMU(ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTT_Modelica_N_40,fileNamePrefix="ScalableTestSuite_ScalableTestSuite_Thermal_HeatConduction_ScaledExperiments_OneDHeatTransferTT_Modelica_N_40",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTT_Modelica_N_40,fileNamePrefix="ScalableTestSuite_ScalableTestSuite_Thermal_HeatConduction_ScaledExperiments_OneDHeatTransferTT_Modelica_N_40",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001314/0.001314, allocations: 111.6 kB / 16.92 MB, free: 5.789 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001276/0.001276, allocations: 191.3 kB / 17.85 MB, free: 5.164 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.263/1.263, allocations: 222.9 MB / 241.5 MB, free: 15.23 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ScalableTestSuite 2.2.0-master/package.mo): time 0.8128/0.8128, allocations: 119.3 MB / 411 MB, free: 9.562 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001276/0.001276, allocations: 67.91 kB / 0.4911 GB, free: 13.64 MB / 430.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.4525/0.4538, allocations: 80.68 MB / 0.5698 GB, free: 43.34 MB / 462.3 MB Notification: Performance of NFInst.instantiate(ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTT_Modelica_N_40): time 0.002305/0.4562, allocations: 1.66 MB / 0.5715 GB, free: 42.04 MB / 462.3 MB Notification: Performance of NFInst.instExpressions: time 0.0002324/0.4564, allocations: 93.81 kB / 0.5716 GB, free: 41.96 MB / 462.3 MB Notification: Performance of NFInst.updateImplicitVariability: time 4.955e-05/0.4565, allocations: 1.594 kB / 0.5716 GB, free: 41.96 MB / 462.3 MB Notification: Performance of NFTyping.typeComponents: time 0.0001076/0.4566, allocations: 13.23 kB / 0.5716 GB, free: 41.95 MB / 462.3 MB Notification: Performance of NFTyping.typeBindings: time 6.901e-05/0.4567, allocations: 41.31 kB / 0.5716 GB, free: 41.91 MB / 462.3 MB Notification: Performance of NFTyping.typeClassSections: time 0.0001213/0.4568, allocations: 23.09 kB / 0.5716 GB, free: 41.89 MB / 462.3 MB Notification: Performance of NFFlatten.flatten: time 0.001267/0.4581, allocations: 2.262 MB / 0.5738 GB, free: 40.58 MB / 462.3 MB Notification: Performance of NFFlatten.resolveConnections: time 0.001178/0.4593, allocations: 1.12 MB / 0.5749 GB, free: 39.98 MB / 462.3 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0007898/0.4601, allocations: 0.8358 MB / 0.5758 GB, free: 39.58 MB / 462.3 MB Notification: Performance of NFSimplifyModel.simplify: time 0.0007748/0.4608, allocations: 0.9133 MB / 0.5766 GB, free: 38.99 MB / 462.3 MB Notification: Performance of NFPackage.collectConstants: time 0.0002531/0.4611, allocations: 168.7 kB / 0.5768 GB, free: 38.99 MB / 462.3 MB Notification: Performance of NFFlatten.collectFunctions: time 0.0003394/0.4615, allocations: 172.1 kB / 0.577 GB, free: 38.99 MB / 462.3 MB Notification: Performance of NFScalarize.scalarize: time 0.0002499/0.4617, allocations: 415.2 kB / 0.5774 GB, free: 38.65 MB / 462.3 MB Notification: Performance of NFVerifyModel.verify: time 0.0008385/0.4626, allocations: 0.9053 MB / 0.5783 GB, free: 38.09 MB / 462.3 MB Notification: Performance of NFConvertDAE.convert: time 0.001203/0.4638, allocations: 2.081 MB / 0.5803 GB, free: 36.71 MB / 462.3 MB Notification: Performance of FrontEnd - DAE generated: time 4.288e-06/0.4638, allocations: 0 / 0.5803 GB, free: 36.71 MB / 462.3 MB Notification: Performance of FrontEnd: time 1.323e-06/0.4638, allocations: 0 / 0.5803 GB, free: 36.71 MB / 462.3 MB Notification: Performance of Transformations before backend: time 3.184e-05/0.4638, allocations: 1.281 kB / 0.5803 GB, free: 36.71 MB / 462.3 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 390 * Number of variables: 390 Notification: Performance of Generate backend data structure: time 0.00334/0.4672, allocations: 1.945 MB / 0.5822 GB, free: 35.38 MB / 462.3 MB Notification: Performance of prepare preOptimizeDAE: time 3.794e-05/0.4672, allocations: 10.12 kB / 0.5822 GB, free: 35.38 MB / 462.3 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.00021/0.4674, allocations: 232.9 kB / 0.5824 GB, free: 35.2 MB / 462.3 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0003102/0.4677, allocations: 164.7 kB / 0.5826 GB, free: 35.13 MB / 462.3 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001042/0.4688, allocations: 0.796 MB / 0.5834 GB, free: 34.58 MB / 462.3 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 7.034e-05/0.4689, allocations: 125.4 kB / 0.5835 GB, free: 34.52 MB / 462.3 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002215/0.4691, allocations: 178.6 kB / 0.5836 GB, free: 34.46 MB / 462.3 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002253/0.4714, allocations: 1.784 MB / 0.5854 GB, free: 33.46 MB / 462.3 MB Notification: Performance of preOpt findStateOrder (simulation): time 5.227e-05/0.4714, allocations: 20.12 kB / 0.5854 GB, free: 33.45 MB / 462.3 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001099/0.4715, allocations: 64.47 kB / 0.5855 GB, free: 33.4 MB / 462.3 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.831e-05/0.4716, allocations: 36.38 kB / 0.5855 GB, free: 33.4 MB / 462.3 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.00206/0.4736, allocations: 1.849 MB / 0.5873 GB, free: 31.6 MB / 462.3 MB Warning: The model contains alias variables with redundant start and/or conflicting nominal values. It is recommended to resolve the conflicts, because otherwise the system could be hard to solve. To print the conflicting alias sets and the chosen candidates please use -d=aliasConflicts. Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.005871/0.4795, allocations: 8.33 MB / 0.5954 GB, free: 22.27 MB / 462.3 MB Notification: Performance of preOpt comSubExp (simulation): time 0.0029/0.4824, allocations: 2.618 MB / 0.598 GB, free: 19.66 MB / 462.3 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.001155/0.4836, allocations: 1.357 MB / 0.5993 GB, free: 18.3 MB / 462.3 MB Notification: Performance of preOpt evalFunc (simulation): time 4.739e-05/0.4836, allocations: 18 kB / 0.5993 GB, free: 18.29 MB / 462.3 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.122e-05/0.4837, allocations: 56.56 kB / 0.5994 GB, free: 18.22 MB / 462.3 MB Notification: Performance of pre-optimization done (n=192): time 3.136e-06/0.4837, allocations: 0 / 0.5994 GB, free: 18.22 MB / 462.3 MB Notification: Performance of matching and sorting (n=192): time 0.002575/0.4863, allocations: 2.539 MB / 0.6019 GB, free: 15.68 MB / 462.3 MB Notification: Performance of inlineWhenForInitialization (initialization): time 2.947e-05/0.4863, allocations: 69.41 kB / 0.6019 GB, free: 15.61 MB / 462.3 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0004193/0.4867, allocations: 0.5288 MB / 0.6025 GB, free: 15.06 MB / 462.3 MB Notification: Performance of collectPreVariables (initialization): time 6.491e-05/0.4868, allocations: 61.7 kB / 0.6025 GB, free: 15 MB / 462.3 MB Notification: Performance of collectInitialEqns (initialization): time 0.0001421/0.4869, allocations: 421.8 kB / 0.6029 GB, free: 14.57 MB / 462.3 MB Notification: Performance of collectInitialBindings (initialization): time 0.0002648/0.4872, allocations: 0.6814 MB / 0.6036 GB, free: 13.88 MB / 462.3 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002788/0.4875, allocations: 303.6 kB / 0.6039 GB, free: 13.58 MB / 462.3 MB Notification: Performance of setup shared object (initialization): time 5.48e-05/0.4876, allocations: 337.9 kB / 0.6042 GB, free: 13.25 MB / 462.3 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0008077/0.4884, allocations: 0.7728 MB / 0.6049 GB, free: 12.47 MB / 462.3 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0007926/0.4892, allocations: 0.8021 MB / 0.6057 GB, free: 11.67 MB / 462.3 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.001724/0.4909, allocations: 1.837 MB / 0.6075 GB, free: 9.836 MB / 462.3 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.226e-06/0.4909, allocations: 4 kB / 0.6075 GB, free: 9.832 MB / 462.3 MB Notification: Performance of matching and sorting (n=230) (initialization): time 0.002083/0.493, allocations: 2.034 MB / 0.6095 GB, free: 7.789 MB / 462.3 MB Notification: Performance of prepare postOptimizeDAE: time 1.609e-05/0.493, allocations: 4 kB / 0.6095 GB, free: 7.785 MB / 462.3 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.155e-06/0.493, allocations: 0 / 0.6095 GB, free: 7.785 MB / 462.3 MB Notification: Performance of postOpt tearingSystem (initialization): time 1.951e-05/0.4931, allocations: 12 kB / 0.6095 GB, free: 7.773 MB / 462.3 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0015/0.4946, allocations: 0.5267 MB / 0.61 GB, free: 7.246 MB / 462.3 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.367e-05/0.4946, allocations: 8 kB / 0.6101 GB, free: 7.238 MB / 462.3 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0007589/0.4954, allocations: 206.4 kB / 0.6102 GB, free: 7.035 MB / 462.3 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.46e-05/0.4954, allocations: 48 kB / 0.6103 GB, free: 6.988 MB / 462.3 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (230): * Single equations (assignments): 230 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0004439/0.4959, allocations: 0.5011 MB / 0.6108 GB, free: 6.477 MB / 462.3 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001344/0.496, allocations: 94.88 kB / 0.6109 GB, free: 6.383 MB / 462.3 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0002665/0.4963, allocations: 173.7 kB / 0.611 GB, free: 6.207 MB / 462.3 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 9.468e-06/0.4963, allocations: 16 kB / 0.6111 GB, free: 6.191 MB / 462.3 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 8.766e-06/0.4963, allocations: 4 kB / 0.6111 GB, free: 6.188 MB / 462.3 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.251e-05/0.4963, allocations: 11.91 kB / 0.6111 GB, free: 6.176 MB / 462.3 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001331/0.4977, allocations: 1.579 MB / 0.6126 GB, free: 4.543 MB / 462.3 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.829e-06/0.4977, allocations: 7.922 kB / 0.6126 GB, free: 4.535 MB / 462.3 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001772/0.4995, allocations: 0.5306 MB / 0.6131 GB, free: 4.004 MB / 462.3 MB Notification: Performance of postOpt tearingSystem (simulation): time 7.004e-06/0.4995, allocations: 8 kB / 0.6131 GB, free: 3.996 MB / 462.3 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 8.79e-05/0.4996, allocations: 59.95 kB / 0.6132 GB, free: 3.938 MB / 462.3 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 5.47e-06/0.4996, allocations: 4 kB / 0.6132 GB, free: 3.934 MB / 462.3 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 9.62e-07/0.4996, allocations: 4 kB / 0.6132 GB, free: 3.93 MB / 462.3 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002742/0.5023, allocations: 3.111 MB / 0.6162 GB, free: 0.8008 MB / 462.3 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0001175/0.5025, allocations: 183.6 kB / 0.6164 GB, free: 0.6016 MB / 462.3 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001335/0.5026, allocations: 55.97 kB / 0.6165 GB, free: 0.5469 MB / 462.3 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0006434/0.5032, allocations: 107.9 kB / 0.6166 GB, free: 452 kB / 462.3 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001252/0.5034, allocations: 105.8 kB / 0.6167 GB, free: 344 kB / 462.3 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.654e-05/0.5034, allocations: 44 kB / 0.6167 GB, free: 300 kB / 462.3 MB Notification: Performance of sorting global known variables: time 0.0003552/0.5038, allocations: 415 kB / 0.6171 GB, free: 15.89 MB / 478.3 MB Notification: Performance of sort global known variables: time 1.2e-07/0.5038, allocations: 0 / 0.6171 GB, free: 15.89 MB / 478.3 MB Notification: Performance of remove unused functions: time 0.0008677/0.5047, allocations: 0.4949 MB / 0.6176 GB, free: 15.39 MB / 478.3 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 38 (heatcapacitor[1].T,heatcapacitor[2].T,heatcapacitor[3].T,heatcapacitor[4].T,heatcapacitor[5].T,heatcapacitor[6].T,heatcapacitor[7].T,heatcapacitor[8].T,heatcapacitor[9].T,heatcapacitor[10].T,heatcapacitor[11].T,heatcapacitor[12].T,heatcapacitor[13].T,heatcapacitor[14].T,heatcapacitor[15].T,heatcapacitor[16].T,heatcapacitor[17].T,heatcapacitor[18].T,heatcapacitor[19].T,heatcapacitor[20].T,heatcapacitor[21].T,heatcapacitor[22].T,heatcapacitor[23].T,heatcapacitor[24].T,heatcapacitor[25].T,heatcapacitor[26].T,heatcapacitor[27].T,heatcapacitor[28].T,heatcapacitor[29].T,heatcapacitor[30].T,heatcapacitor[31].T,heatcapacitor[32].T,heatcapacitor[33].T,heatcapacitor[34].T,heatcapacitor[35].T,heatcapacitor[36].T,heatcapacitor[37].T,heatcapacitor[38].T) * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (192): * Single equations (assignments): 192 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.003987/0.5087, allocations: 3.738 MB / 0.6213 GB, free: 11.64 MB / 478.3 MB Notification: Performance of simCode: created initialization part: time 0.00631/0.515, allocations: 4.188 MB / 0.6253 GB, free: 7.449 MB / 478.3 MB Notification: Performance of simCode: created event and clocks part: time 6.041e-06/0.515, allocations: 0 / 0.6253 GB, free: 7.449 MB / 478.3 MB Notification: Performance of simCode: created simulation system equations: time 0.001114/0.5161, allocations: 0.9793 MB / 0.6263 GB, free: 6.473 MB / 478.3 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0007579/0.5169, allocations: 177.3 kB / 0.6265 GB, free: 6.301 MB / 478.3 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01848/0.5354, allocations: 15.35 MB / 0.6415 GB, free: 6.457 MB / 494.3 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0009913/0.5364, allocations: 1.465 MB / 0.6429 GB, free: 4.957 MB / 494.3 MB Notification: Performance of simCode: alias equations: time 0.001432/0.5378, allocations: 0.6996 MB / 0.6436 GB, free: 4.254 MB / 494.3 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0006012/0.5384, allocations: 435.3 kB / 0.644 GB, free: 3.828 MB / 494.3 MB Notification: Performance of SimCode: time 3.61e-07/0.5385, allocations: 0 / 0.644 GB, free: 3.828 MB / 494.3 MB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.3819/0.9204, allocations: 24.95 MB / 0.6683 GB, free: 11.15 MB / 0.5139 GB Notification: Performance of buildModelFMU: Generate platform static: time 10/10.92, allocations: 14.69 kB / 0.6684 GB, free: 11.15 MB / 0.5139 GB (rm -f ScalableTestSuite_ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTT_Modelica_N_40.pipe ; mkfifo ScalableTestSuite_ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTT_Modelica_N_40.pipe ; head -c 1048576 < ScalableTestSuite_ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTT_Modelica_N_40.pipe >> ../files/ScalableTestSuite_ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTT_Modelica_N_40.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=ScalableTestSuite_ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTT_Modelica_N_40_res.mat --tempDir=temp_ScalableTestSuite_ScalableTestSuite_Thermal_HeatConduction_ScaledExperiments_OneDHeatTransferTT_Modelica_N_40_fmu --startTime=0 --stopTime=350 --timeout=300 --tolerance=1e-06 ScalableTestSuite_ScalableTestSuite_Thermal_HeatConduction_ScaledExperiments_OneDHeatTransferTT_Modelica_N_40.fmu > ScalableTestSuite_ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTT_Modelica_N_40.pipe 2>&1) diffSimulationResults("ScalableTestSuite_ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTT_Modelica_N_40_res.mat","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/ReferenceFiles/ScalableTestSuite/ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTT_Modelica_N_40_res.mat","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/ScalableTestSuite_ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTT_Modelica_N_40.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches