Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ScalableTestSuite_noopt_ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTI_FD_N_80.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: translateModel(ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTI_FD_N_80,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="T.1.|T.2.|T.3.|T.80.|der.T.1..|der.T.2..|der.T.3..|time|time",fileNamePrefix="ScalableTestSuite_noopt_ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTI_FD_N_80") translateModel(ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTI_FD_N_80,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="T.1.|T.2.|T.3.|T.80.|der.T.1..|der.T.2..|der.T.3..|time|time",fileNamePrefix="ScalableTestSuite_noopt_ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTI_FD_N_80") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001977/0.001977, allocations: 106.5 kB / 17.06 MB, free: 6.016 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.002467/0.002467, allocations: 195.7 kB / 18 MB, free: 5.094 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 2.553/2.553, allocations: 222.9 MB / 241.7 MB, free: 15.17 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ScalableTestSuite 2.2.0-master/package.mo): time 1.414/1.414, allocations: 119.3 MB / 411.2 MB, free: 9.504 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001414/0.001414, allocations: 66.86 kB / 0.571 GB, free: 39.71 MB / 462.3 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.219/0.2205, allocations: 80.69 MB / 0.6498 GB, free: 12.98 MB / 0.4983 GB Notification: Performance of NFInst.instantiate(ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTI_FD_N_80): time 0.00328/0.2238, allocations: 1.332 MB / 0.6511 GB, free: 11.63 MB / 0.4983 GB Notification: Performance of NFInst.instExpressions: time 0.0002487/0.2241, allocations: 39.86 kB / 0.6511 GB, free: 11.59 MB / 0.4983 GB Notification: Performance of NFInst.updateImplicitVariability: time 4.568e-05/0.2242, allocations: 3.938 kB / 0.6512 GB, free: 11.59 MB / 0.4983 GB Notification: Performance of NFTyping.typeComponents: time 0.0001403/0.2243, allocations: 7.922 kB / 0.6512 GB, free: 11.58 MB / 0.4983 GB Notification: Performance of NFTyping.typeBindings: time 0.0001087/0.2244, allocations: 30.23 kB / 0.6512 GB, free: 11.55 MB / 0.4983 GB Notification: Performance of NFTyping.typeClassSections: time 0.000201/0.2247, allocations: 15.91 kB / 0.6512 GB, free: 11.54 MB / 0.4983 GB Notification: Performance of NFFlatten.flatten: time 0.001227/0.2259, allocations: 1.283 MB / 0.6525 GB, free: 10.25 MB / 0.4983 GB Notification: Performance of NFFlatten.resolveConnections: time 7.842e-05/0.226, allocations: 8 kB / 0.6525 GB, free: 10.25 MB / 0.4983 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0004335/0.2264, allocations: 439.5 kB / 0.6529 GB, free: 9.816 MB / 0.4983 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001053/0.2275, allocations: 0.6316 MB / 0.6535 GB, free: 9.184 MB / 0.4983 GB Notification: Performance of NFPackage.collectConstants: time 0.0001441/0.2277, allocations: 76 kB / 0.6536 GB, free: 9.109 MB / 0.4983 GB Notification: Performance of NFFlatten.collectFunctions: time 0.000153/0.2278, allocations: 72 kB / 0.6536 GB, free: 9.039 MB / 0.4983 GB Notification: Performance of NFScalarize.scalarize: time 0.0004204/0.2282, allocations: 466.9 kB / 0.6541 GB, free: 8.582 MB / 0.4983 GB Notification: Performance of NFVerifyModel.verify: time 0.0005933/0.2288, allocations: 470.5 kB / 0.6545 GB, free: 8.121 MB / 0.4983 GB Notification: Performance of NFConvertDAE.convert: time 0.0008045/0.2297, allocations: 0.8023 MB / 0.6553 GB, free: 7.316 MB / 0.4983 GB Notification: Performance of FrontEnd - DAE generated: time 7.304e-06/0.2297, allocations: 0 / 0.6553 GB, free: 7.316 MB / 0.4983 GB Notification: Performance of FrontEnd: time 2.404e-06/0.2297, allocations: 0 / 0.6553 GB, free: 7.316 MB / 0.4983 GB Notification: Performance of Transformations before backend: time 1.045e-05/0.2297, allocations: 0 / 0.6553 GB, free: 7.316 MB / 0.4983 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 159 * Number of variables: 159 Notification: Performance of Generate backend data structure: time 0.009053/0.2388, allocations: 2.654 MB / 0.6579 GB, free: 4.605 MB / 0.4983 GB Notification: Performance of prepare preOptimizeDAE: time 5.393e-05/0.2388, allocations: 11.89 kB / 0.6579 GB, free: 4.594 MB / 0.4983 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0001955/0.239, allocations: 76.28 kB / 0.658 GB, free: 4.52 MB / 0.4983 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0006853/0.2397, allocations: 371.4 kB / 0.6584 GB, free: 4.117 MB / 0.4983 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 5.242e-05/0.2398, allocations: 69.62 kB / 0.6584 GB, free: 4.051 MB / 0.4983 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002184/0.24, allocations: 132.1 kB / 0.6585 GB, free: 3.922 MB / 0.4983 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001444/0.2415, allocations: 0.8422 MB / 0.6594 GB, free: 3.07 MB / 0.4983 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.912e-05/0.2415, allocations: 192 / 0.6594 GB, free: 3.07 MB / 0.4983 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 9.747e-05/0.2416, allocations: 31.94 kB / 0.6594 GB, free: 3.039 MB / 0.4983 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.609e-05/0.2416, allocations: 16 kB / 0.6594 GB, free: 3.023 MB / 0.4983 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0009029/0.2425, allocations: 0.4969 MB / 0.6599 GB, free: 2.527 MB / 0.4983 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.01262/0.2552, allocations: 6.851 MB / 0.6666 GB, free: 10.65 MB / 0.5139 GB Notification: Performance of preOpt comSubExp (simulation): time 0.03555/0.2908, allocations: 4.375 MB / 0.6709 GB, free: 6.258 MB / 0.5139 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001402/0.2922, allocations: 378.6 kB / 0.6712 GB, free: 5.887 MB / 0.5139 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0003112/0.2926, allocations: 8.656 kB / 0.6712 GB, free: 5.879 MB / 0.5139 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.242e-05/0.2926, allocations: 39.22 kB / 0.6713 GB, free: 5.832 MB / 0.5139 GB Notification: Performance of pre-optimization done (n=79): time 3.777e-06/0.2927, allocations: 0 / 0.6713 GB, free: 5.832 MB / 0.5139 GB Notification: Performance of matching and sorting (n=79): time 0.004578/0.2972, allocations: 1.194 MB / 0.6724 GB, free: 4.629 MB / 0.5139 GB Notification: Performance of inlineWhenForInitialization (initialization): time 6.768e-05/0.2973, allocations: 64.06 kB / 0.6725 GB, free: 4.555 MB / 0.5139 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0002066/0.2976, allocations: 137.8 kB / 0.6726 GB, free: 4.41 MB / 0.5139 GB Notification: Performance of collectPreVariables (initialization): time 0.0001587/0.2977, allocations: 53.7 kB / 0.6727 GB, free: 4.352 MB / 0.5139 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002083/0.298, allocations: 205.3 kB / 0.6729 GB, free: 4.145 MB / 0.5139 GB Notification: Performance of collectInitialBindings (initialization): time 0.0005144/0.2985, allocations: 366.8 kB / 0.6732 GB, free: 3.781 MB / 0.5139 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.000602/0.2991, allocations: 230.9 kB / 0.6734 GB, free: 3.551 MB / 0.5139 GB Notification: Performance of setup shared object (initialization): time 0.0002565/0.2994, allocations: 362.8 kB / 0.6738 GB, free: 3.188 MB / 0.5139 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001469/0.3009, allocations: 478.3 kB / 0.6742 GB, free: 2.719 MB / 0.5139 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001376/0.3023, allocations: 495.5 kB / 0.6747 GB, free: 2.234 MB / 0.5139 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.002978/0.3053, allocations: 1.045 MB / 0.6757 GB, free: 1.191 MB / 0.5139 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 7.975e-06/0.3053, allocations: 0 / 0.6757 GB, free: 1.191 MB / 0.5139 GB Notification: Performance of matching and sorting (n=158) (initialization): time 0.00371/0.309, allocations: 1.262 MB / 0.677 GB, free: 15.92 MB / 0.5295 GB Notification: Performance of prepare postOptimizeDAE: time 3.33e-05/0.3091, allocations: 7.938 kB / 0.677 GB, free: 15.91 MB / 0.5295 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.211e-05/0.3091, allocations: 0 / 0.677 GB, free: 15.91 MB / 0.5295 GB Notification: Performance of postOpt tearingSystem (initialization): time 3.67e-05/0.3091, allocations: 8 kB / 0.677 GB, free: 15.9 MB / 0.5295 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003632/0.3128, allocations: 335.4 kB / 0.6773 GB, free: 15.58 MB / 0.5295 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 3.232e-05/0.3128, allocations: 12 kB / 0.6773 GB, free: 15.57 MB / 0.5295 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002326/0.3152, allocations: 178.8 kB / 0.6775 GB, free: 15.39 MB / 0.5295 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001519/0.3154, allocations: 32 kB / 0.6775 GB, free: 15.36 MB / 0.5295 GB 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 (158): * Single equations (assignments): 158 * 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 0.0006142/0.316, allocations: 226.4 kB / 0.6777 GB, free: 15.13 MB / 0.5295 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002552/0.3163, allocations: 35.66 kB / 0.6778 GB, free: 15.09 MB / 0.5295 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0005329/0.3168, allocations: 147.2 kB / 0.6779 GB, free: 14.95 MB / 0.5295 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.444e-05/0.3168, allocations: 8 kB / 0.6779 GB, free: 14.94 MB / 0.5295 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.224e-05/0.3168, allocations: 0 / 0.6779 GB, free: 14.94 MB / 0.5295 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.476e-05/0.3169, allocations: 3.984 kB / 0.6779 GB, free: 14.93 MB / 0.5295 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001687/0.3186, allocations: 0.677 MB / 0.6786 GB, free: 14.21 MB / 0.5295 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.04e-05/0.3186, allocations: 11.98 kB / 0.6786 GB, free: 14.2 MB / 0.5295 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.004098/0.3227, allocations: 235.7 kB / 0.6788 GB, free: 13.96 MB / 0.5295 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.523e-05/0.3227, allocations: 7.938 kB / 0.6788 GB, free: 13.96 MB / 0.5295 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0002125/0.323, allocations: 55.94 kB / 0.6789 GB, free: 13.9 MB / 0.5295 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 8.336e-06/0.323, allocations: 0 / 0.6789 GB, free: 13.9 MB / 0.5295 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.069e-06/0.323, allocations: 4 kB / 0.6789 GB, free: 13.9 MB / 0.5295 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003963/0.327, allocations: 1.386 MB / 0.6802 GB, free: 12.49 MB / 0.5295 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001613/0.3272, allocations: 116.5 kB / 0.6803 GB, free: 12.36 MB / 0.5295 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002685/0.3275, allocations: 51.89 kB / 0.6804 GB, free: 12.31 MB / 0.5295 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002136/0.3296, allocations: 107.8 kB / 0.6805 GB, free: 12.2 MB / 0.5295 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002528/0.3299, allocations: 52.58 kB / 0.6805 GB, free: 12.15 MB / 0.5295 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.000121/0.33, allocations: 19.98 kB / 0.6806 GB, free: 12.13 MB / 0.5295 GB Notification: Performance of sorting global known variables: time 0.0001137/0.3301, allocations: 95.58 kB / 0.6807 GB, free: 12.04 MB / 0.5295 GB Notification: Performance of sort global known variables: time 3.11e-07/0.3302, allocations: 0 / 0.6807 GB, free: 12.04 MB / 0.5295 GB Notification: Performance of remove unused functions: time 0.001263/0.3314, allocations: 343.5 kB / 0.681 GB, free: 11.7 MB / 0.5295 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 79 (Ttilde[1],Ttilde[2],Ttilde[3],Ttilde[4],Ttilde[5],Ttilde[6],Ttilde[7],Ttilde[8],Ttilde[9],Ttilde[10],Ttilde[11],Ttilde[12],Ttilde[13],Ttilde[14],Ttilde[15],Ttilde[16],Ttilde[17],Ttilde[18],Ttilde[19],Ttilde[20],Ttilde[21],Ttilde[22],Ttilde[23],Ttilde[24],Ttilde[25],Ttilde[26],Ttilde[27],Ttilde[28],Ttilde[29],Ttilde[30],Ttilde[31],Ttilde[32],Ttilde[33],Ttilde[34],Ttilde[35],Ttilde[36],Ttilde[37],Ttilde[38],Ttilde[39],Ttilde[40],Ttilde[41],Ttilde[42],Ttilde[43],Ttilde[44],Ttilde[45],Ttilde[46],Ttilde[47],Ttilde[48],Ttilde[49],Ttilde[50],Ttilde[51],Ttilde[52],Ttilde[53],Ttilde[54],Ttilde[55],Ttilde[56],Ttilde[57],Ttilde[58],Ttilde[59],Ttilde[60],Ttilde[61],Ttilde[62],Ttilde[63],Ttilde[64],Ttilde[65],Ttilde[66],Ttilde[67],Ttilde[68],Ttilde[69],Ttilde[70],Ttilde[71],Ttilde[72],Ttilde[73],Ttilde[74],Ttilde[75],Ttilde[76],Ttilde[77],Ttilde[78],Ttilde[79]) * 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 (79): * Single equations (assignments): 79 * 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 0.0004114/0.3319, allocations: 167.6 kB / 0.6811 GB, free: 11.53 MB / 0.5295 GB Notification: Performance of simCode: created initialization part: time 0.003207/0.3351, allocations: 1.044 MB / 0.6822 GB, free: 10.48 MB / 0.5295 GB Notification: Performance of simCode: created event and clocks part: time 3.927e-06/0.3351, allocations: 4 kB / 0.6822 GB, free: 10.48 MB / 0.5295 GB Notification: Performance of simCode: created simulation system equations: time 0.00129/0.3364, allocations: 451.4 kB / 0.6826 GB, free: 10.04 MB / 0.5295 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001346/0.3378, allocations: 175.5 kB / 0.6828 GB, free: 9.875 MB / 0.5295 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0119/0.3497, allocations: 5.378 MB / 0.688 GB, free: 4.469 MB / 0.5295 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0008974/0.3507, allocations: 0.9527 MB / 0.6889 GB, free: 3.484 MB / 0.5295 GB Notification: Performance of simCode: alias equations: time 0.001964/0.3526, allocations: 388.4 kB / 0.6893 GB, free: 3.105 MB / 0.5295 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.000378/0.353, allocations: 47.44 kB / 0.6894 GB, free: 3.059 MB / 0.5295 GB Notification: Performance of SimCode: time 2.725e-06/0.3531, allocations: 4 kB / 0.6894 GB, free: 3.055 MB / 0.5295 GB Notification: Performance of Templates: time 0.03641/0.3895, allocations: 12.78 MB / 0.7018 GB, free: 6.438 MB / 0.5452 GB make -j1 -f ScalableTestSuite_noopt_ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTI_FD_N_80.makefile (rm -f ScalableTestSuite_noopt_ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTI_FD_N_80.pipe ; mkfifo ScalableTestSuite_noopt_ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTI_FD_N_80.pipe ; head -c 1048576 < ScalableTestSuite_noopt_ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTI_FD_N_80.pipe >> ../files/ScalableTestSuite_noopt_ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTI_FD_N_80.sim & ./ScalableTestSuite_noopt_ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTI_FD_N_80 -abortSlowSimulation -alarm=300 -emit_protected -lv LOG_STATS > ScalableTestSuite_noopt_ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTI_FD_N_80.pipe 2>&1) diffSimulationResults("ScalableTestSuite_noopt_ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTI_FD_N_80_res.mat","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/ReferenceFiles/ScalableTestSuite/ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTI_FD_N_80_res.mat","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/ScalableTestSuite_noopt_ScalableTestSuite.Thermal.HeatConduction.ScaledExperiments.OneDHeatTransferTI_FD_N_80.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches