Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_10_Buildings.HeatTransfer.Windows.BaseClasses.Examples.InteriorConvection.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/Buildings 10.1.1-maint.10.0.x/package.mo", uses=false) Using package Buildings with version 10.1.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.1.1-maint.10.0.x/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(Buildings.HeatTransfer.Windows.BaseClasses.Examples.InteriorConvection,fileNamePrefix="Buildings_10_Buildings_HeatTransfer_Windows_BaseClasses_Examples_InteriorConvection",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.HeatTransfer.Windows.BaseClasses.Examples.InteriorConvection,fileNamePrefix="Buildings_10_Buildings_HeatTransfer_Windows_BaseClasses_Examples_InteriorConvection",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 0.001674/0.001674, allocations: 108 kB / 15.6 MB, free: 132 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.00198/0.00198, allocations: 193.7 kB / 16.53 MB, free: 6.391 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.334/1.334, allocations: 222.9 MB / 240.2 MB, free: 4.41 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.1.1-maint.10.0.x/package.mo): time 2.523/2.523, allocations: 437 MB / 0.7104 GB, free: 5.133 MB / 0.5606 GB Notification: Performance of FrontEnd - loaded program: time 0.001303/0.001303, allocations: 59.91 kB / 0.8693 GB, free: 4.598 MB / 0.7169 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.5198/0.5211, allocations: 151.6 MB / 1.017 GB, free: 2.547 MB / 0.7637 GB Notification: Performance of NFInst.instantiate(Buildings.HeatTransfer.Windows.BaseClasses.Examples.InteriorConvection): time 0.002974/0.5241, allocations: 1.853 MB / 1.019 GB, free: 0.6836 MB / 0.7637 GB Notification: Performance of NFInst.instExpressions: time 0.00119/0.5253, allocations: 0.7285 MB / 1.02 GB, free: 15.95 MB / 0.7794 GB Notification: Performance of NFInst.updateImplicitVariability: time 8.257e-05/0.5254, allocations: 0 / 1.02 GB, free: 15.95 MB / 0.7794 GB Notification: Performance of NFTyping.typeComponents: time 5.253e-05/0.5255, allocations: 15.86 kB / 1.02 GB, free: 15.93 MB / 0.7794 GB Notification: Performance of NFTyping.typeBindings: time 0.0002187/0.5257, allocations: 47.64 kB / 1.02 GB, free: 15.89 MB / 0.7794 GB Notification: Performance of NFTyping.typeClassSections: time 0.0002046/0.5259, allocations: 75.83 kB / 1.02 GB, free: 15.81 MB / 0.7794 GB Notification: Performance of NFFlatten.flatten: time 0.0002134/0.5262, allocations: 127.3 kB / 1.02 GB, free: 15.69 MB / 0.7794 GB Notification: Performance of NFFlatten.resolveConnections: time 0.000133/0.5263, allocations: 37.36 kB / 1.02 GB, free: 15.64 MB / 0.7794 GB Notification: Performance of NFEvalConstants.evaluate: time 7.426e-05/0.5264, allocations: 47.84 kB / 1.02 GB, free: 15.6 MB / 0.7794 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0001292/0.5265, allocations: 55.77 kB / 1.02 GB, free: 15.54 MB / 0.7794 GB Notification: Performance of NFPackage.collectConstants: time 2.076e-05/0.5266, allocations: 12 kB / 1.02 GB, free: 15.53 MB / 0.7794 GB Notification: Performance of NFFlatten.collectFunctions: time 6.234e-05/0.5266, allocations: 12 kB / 1.02 GB, free: 15.52 MB / 0.7794 GB Notification: Performance of NFScalarize.scalarize: time 2.303e-05/0.5266, allocations: 23.92 kB / 1.02 GB, free: 15.5 MB / 0.7794 GB Notification: Performance of NFVerifyModel.verify: time 5.27e-05/0.5267, allocations: 47.73 kB / 1.02 GB, free: 15.45 MB / 0.7794 GB Notification: Performance of NFConvertDAE.convert: time 0.0001554/0.5269, allocations: 113.9 kB / 1.021 GB, free: 15.34 MB / 0.7794 GB Notification: Performance of FrontEnd - DAE generated: time 4.618e-06/0.5269, allocations: 3.984 kB / 1.021 GB, free: 15.34 MB / 0.7794 GB Notification: Performance of FrontEnd: time 1.182e-06/0.5269, allocations: 0 / 1.021 GB, free: 15.34 MB / 0.7794 GB Notification: Performance of Transformations before backend: time 5.03e-06/0.5269, allocations: 0 / 1.021 GB, free: 15.34 MB / 0.7794 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 18 * Number of variables: 18 Notification: Performance of Generate backend data structure: time 0.0005374/0.5274, allocations: 415 kB / 1.021 GB, free: 14.88 MB / 0.7794 GB Notification: Performance of prepare preOptimizeDAE: time 3.335e-05/0.5275, allocations: 8.031 kB / 1.021 GB, free: 14.88 MB / 0.7794 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 4.049e-05/0.5275, allocations: 38.75 kB / 1.021 GB, free: 14.83 MB / 0.7794 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 3.327e-05/0.5276, allocations: 8.844 kB / 1.021 GB, free: 14.82 MB / 0.7794 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0001827/0.5278, allocations: 208.1 kB / 1.021 GB, free: 14.58 MB / 0.7794 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 1.077e-05/0.5278, allocations: 4.281 kB / 1.021 GB, free: 14.57 MB / 0.7794 GB Notification: Performance of preOpt expandDerOperator (simulation): time 1.571e-05/0.5278, allocations: 16.31 kB / 1.021 GB, free: 14.56 MB / 0.7794 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0002238/0.528, allocations: 91.33 kB / 1.021 GB, free: 14.46 MB / 0.7794 GB Notification: Performance of preOpt findStateOrder (simulation): time 7.634e-06/0.528, allocations: 0 / 1.021 GB, free: 14.46 MB / 0.7794 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 1.434e-05/0.5281, allocations: 12 kB / 1.021 GB, free: 14.45 MB / 0.7794 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.248e-06/0.5281, allocations: 0 / 1.021 GB, free: 14.45 MB / 0.7794 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0002221/0.5283, allocations: 63.89 kB / 1.021 GB, free: 14.39 MB / 0.7794 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0004728/0.5288, allocations: 368.5 kB / 1.022 GB, free: 13.98 MB / 0.7794 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0002253/0.529, allocations: 54.55 kB / 1.022 GB, free: 13.92 MB / 0.7794 GB Notification: Performance of preOpt resolveLoops (simulation): time 9.908e-05/0.5291, allocations: 28.89 kB / 1.022 GB, free: 13.89 MB / 0.7794 GB Notification: Performance of preOpt evalFunc (simulation): time 1.182e-05/0.5291, allocations: 0 / 1.022 GB, free: 13.89 MB / 0.7794 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.87e-05/0.5292, allocations: 34.5 kB / 1.022 GB, free: 13.84 MB / 0.7794 GB Notification: Performance of pre-optimization done (n=3): time 9.22e-07/0.5292, allocations: 3.938 kB / 1.022 GB, free: 13.84 MB / 0.7794 GB Notification: Performance of matching and sorting (n=3): time 0.0003781/0.5296, allocations: 101.7 kB / 1.022 GB, free: 13.73 MB / 0.7794 GB Notification: Performance of inlineWhenForInitialization (initialization): time 2.993e-05/0.5296, allocations: 51.41 kB / 1.022 GB, free: 13.67 MB / 0.7794 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0001282/0.5297, allocations: 160.4 kB / 1.022 GB, free: 13.5 MB / 0.7794 GB Notification: Performance of collectPreVariables (initialization): time 1.185e-05/0.5298, allocations: 25.7 kB / 1.022 GB, free: 13.47 MB / 0.7794 GB Notification: Performance of collectInitialEqns (initialization): time 5.655e-05/0.5298, allocations: 104 kB / 1.022 GB, free: 13.36 MB / 0.7794 GB Notification: Performance of collectInitialBindings (initialization): time 1.168e-05/0.5298, allocations: 11.84 kB / 1.022 GB, free: 13.35 MB / 0.7794 GB Notification: Performance of simplifyInitialFunctions (initialization): time 3.75e-05/0.5299, allocations: 21.7 kB / 1.022 GB, free: 13.32 MB / 0.7794 GB Notification: Performance of setup shared object (initialization): time 9.179e-05/0.53, allocations: 314.8 kB / 1.023 GB, free: 13.01 MB / 0.7794 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0001053/0.5301, allocations: 32.83 kB / 1.023 GB, free: 12.97 MB / 0.7794 GB Notification: Performance of partitionIndependentBlocks (initialization): time 8.626e-05/0.5302, allocations: 19.97 kB / 1.023 GB, free: 12.95 MB / 0.7794 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.000188/0.5304, allocations: 48.81 kB / 1.023 GB, free: 12.9 MB / 0.7794 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.005e-06/0.5304, allocations: 0 / 1.023 GB, free: 12.9 MB / 0.7794 GB Notification: Performance of matching and sorting (n=4) (initialization): time 0.0002293/0.5306, allocations: 93.5 kB / 1.023 GB, free: 12.8 MB / 0.7794 GB Notification: Performance of prepare postOptimizeDAE: time 1.327e-05/0.5306, allocations: 7.938 kB / 1.023 GB, free: 12.8 MB / 0.7794 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.747e-06/0.5307, allocations: 0 / 1.023 GB, free: 12.8 MB / 0.7794 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.048e-05/0.5307, allocations: 0 / 1.023 GB, free: 12.8 MB / 0.7794 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 8.412e-05/0.5308, allocations: 15.98 kB / 1.023 GB, free: 12.78 MB / 0.7794 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 4.589e-06/0.5308, allocations: 0 / 1.023 GB, free: 12.78 MB / 0.7794 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 7.519e-05/0.5309, allocations: 11.89 kB / 1.023 GB, free: 12.77 MB / 0.7794 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.551e-06/0.5309, allocations: 0 / 1.023 GB, free: 12.77 MB / 0.7794 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0001328/0.531, allocations: 109.7 kB / 1.023 GB, free: 12.66 MB / 0.7794 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 8.252e-05/0.5311, allocations: 23.97 kB / 1.023 GB, free: 12.64 MB / 0.7794 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.00016/0.5313, allocations: 48.75 kB / 1.023 GB, free: 12.59 MB / 0.7794 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 7.81e-07/0.5313, allocations: 0 / 1.023 GB, free: 12.59 MB / 0.7794 GB Notification: Performance of matching and sorting (n=4) (initialization_lambda0): time 0.0002183/0.5315, allocations: 85.56 kB / 1.023 GB, free: 12.5 MB / 0.7794 GB Notification: Performance of prepare postOptimizeDAE: time 6.823e-06/0.5315, allocations: 8 kB / 1.023 GB, free: 12.49 MB / 0.7794 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.565e-06/0.5315, allocations: 3.938 kB / 1.023 GB, free: 12.48 MB / 0.7794 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.733e-06/0.5315, allocations: 0 / 1.023 GB, free: 12.48 MB / 0.7794 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 7.54e-05/0.5316, allocations: 11.98 kB / 1.023 GB, free: 12.47 MB / 0.7794 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 3.326e-06/0.5316, allocations: 4 kB / 1.023 GB, free: 12.47 MB / 0.7794 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 6.65e-05/0.5317, allocations: 7.922 kB / 1.023 GB, free: 12.46 MB / 0.7794 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.156e-06/0.5317, allocations: 4 kB / 1.023 GB, free: 12.46 MB / 0.7794 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 (4): * Single equations (assignments): 4 * 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 6.915e-05/0.5318, allocations: 176.3 kB / 1.023 GB, free: 12.28 MB / 0.7794 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 3.485e-05/0.5318, allocations: 11.84 kB / 1.023 GB, free: 12.27 MB / 0.7794 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0002499/0.5321, allocations: 93.83 kB / 1.023 GB, free: 12.17 MB / 0.7794 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.014e-06/0.5321, allocations: 3.938 kB / 1.023 GB, free: 12.16 MB / 0.7794 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.199e-06/0.5321, allocations: 4 kB / 1.023 GB, free: 12.16 MB / 0.7794 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.063e-06/0.5321, allocations: 0 / 1.023 GB, free: 12.16 MB / 0.7794 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0001787/0.5323, allocations: 189.6 kB / 1.024 GB, free: 11.93 MB / 0.7794 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.042e-06/0.5323, allocations: 0 / 1.024 GB, free: 11.93 MB / 0.7794 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 6.371e-05/0.5324, allocations: 8 kB / 1.024 GB, free: 11.92 MB / 0.7794 GB Notification: Performance of postOpt tearingSystem (simulation): time 3.536e-06/0.5324, allocations: 3.938 kB / 1.024 GB, free: 11.91 MB / 0.7794 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 6.032e-06/0.5324, allocations: 4 kB / 1.024 GB, free: 11.91 MB / 0.7794 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.483e-06/0.5324, allocations: 0 / 1.024 GB, free: 11.91 MB / 0.7794 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.204e-06/0.5324, allocations: 3.984 kB / 1.024 GB, free: 11.91 MB / 0.7794 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0002436/0.5326, allocations: 179.7 kB / 1.024 GB, free: 11.71 MB / 0.7794 GB Notification: Performance of postOpt removeConstants (simulation): time 5.019e-05/0.5327, allocations: 88.95 kB / 1.024 GB, free: 11.61 MB / 0.7794 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 1.9e-05/0.5327, allocations: 4 kB / 1.024 GB, free: 11.61 MB / 0.7794 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 9.773e-05/0.5328, allocations: 11.98 kB / 1.024 GB, free: 11.59 MB / 0.7794 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 2.622e-05/0.5329, allocations: 0 / 1.024 GB, free: 11.59 MB / 0.7794 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.745e-06/0.5329, allocations: 0 / 1.024 GB, free: 11.59 MB / 0.7794 GB Notification: Performance of sorting global known variables: time 8.635e-05/0.533, allocations: 120.9 kB / 1.024 GB, free: 11.48 MB / 0.7794 GB Notification: Performance of sort global known variables: time 1.21e-07/0.533, allocations: 0 / 1.024 GB, free: 11.48 MB / 0.7794 GB Notification: Performance of remove unused functions: time 0.0003176/0.5333, allocations: 39.84 kB / 1.024 GB, free: 11.44 MB / 0.7794 GB Notification: Model statistics after passing the back-end for simulation: * 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 simulation (3): * Single equations (assignments): 3 * 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 0.0005161/0.5338, allocations: 0.7123 MB / 1.025 GB, free: 10.7 MB / 0.7794 GB Notification: Performance of simCode: created initialization part: time 0.0003146/0.5341, allocations: 75.86 kB / 1.025 GB, free: 10.62 MB / 0.7794 GB Notification: Performance of simCode: created event and clocks part: time 1.824e-06/0.5341, allocations: 0 / 1.025 GB, free: 10.62 MB / 0.7794 GB Notification: Performance of simCode: created simulation system equations: time 9.325e-05/0.5342, allocations: 23.98 kB / 1.025 GB, free: 10.6 MB / 0.7794 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0003472/0.5346, allocations: 26.5 kB / 1.025 GB, free: 10.57 MB / 0.7794 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001645/0.5363, allocations: 1.521 MB / 1.026 GB, free: 8.977 MB / 0.7794 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0002229/0.5365, allocations: 0.6924 MB / 1.027 GB, free: 8.258 MB / 0.7794 GB Notification: Performance of simCode: alias equations: time 4.311e-05/0.5365, allocations: 16.41 kB / 1.027 GB, free: 8.242 MB / 0.7794 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 5.06e-05/0.5366, allocations: 31.42 kB / 1.027 GB, free: 8.211 MB / 0.7794 GB Notification: Performance of SimCode: time 1.773e-06/0.5366, allocations: 112 / 1.027 GB, free: 8.211 MB / 0.7794 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.01838/0.555, allocations: 2.644 MB / 1.03 GB, free: 5.707 MB / 0.7794 GB Notification: Performance of buildModelFMU: Generate platform static: time 7.118/7.673, allocations: 9.375 kB / 1.03 GB, free: 5.703 MB / 0.7794 GB (rm -f Buildings_10_Buildings.HeatTransfer.Windows.BaseClasses.Examples.InteriorConvection.pipe ; mkfifo Buildings_10_Buildings.HeatTransfer.Windows.BaseClasses.Examples.InteriorConvection.pipe ; head -c 1048576 < Buildings_10_Buildings.HeatTransfer.Windows.BaseClasses.Examples.InteriorConvection.pipe >> ../files/Buildings_10_Buildings.HeatTransfer.Windows.BaseClasses.Examples.InteriorConvection.sim & python3 -m fmpy simulate --output-file Buildings_10_Buildings.HeatTransfer.Windows.BaseClasses.Examples.InteriorConvection_res.csv --start-time 0 --stop-time 1 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.0004 Buildings_10_Buildings_HeatTransfer_Windows_BaseClasses_Examples_InteriorConvection.fmu > Buildings_10_Buildings.HeatTransfer.Windows.BaseClasses.Examples.InteriorConvection.pipe 2>&1) diffSimulationResults("Buildings_10_Buildings.HeatTransfer.Windows.BaseClasses.Examples.InteriorConvection_res.csv","/mnt/ReferenceFiles/Buildings/csv/maint_10.0.x/Buildings_HeatTransfer_Windows_BaseClasses_Examples_InteriorConvection.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_10_Buildings.HeatTransfer.Windows.BaseClasses.Examples.InteriorConvection.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches