Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_9_Buildings.HeatTransfer.Windows.BaseClasses.Examples.CenterOfGlass.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 9.1.3-maint.9.1.x/package.mo", uses=false) Using package Buildings with version 9.1.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 9.1.3-maint.9.1.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: translateModel(Buildings.HeatTransfer.Windows.BaseClasses.Examples.CenterOfGlass,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|TAirOut.T|TAirRoo.T|sha.glass.1..port_a.T|sha.glass.1..port_b.T|sha.glass.2..port_a.T|sha.glass.2..port_b.T|nonSha.glass.1..port_a.T|nonSha.glass.1..port_b.T|nonSha.glass.2..port_a.T|nonSha.glass.2..port_b.T",fileNamePrefix="Buildings_9_Buildings.HeatTransfer.Windows.BaseClasses.Examples.CenterOfGlass") translateModel(Buildings.HeatTransfer.Windows.BaseClasses.Examples.CenterOfGlass,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|TAirOut.T|TAirRoo.T|sha.glass.1..port_a.T|sha.glass.1..port_b.T|sha.glass.2..port_a.T|sha.glass.2..port_b.T|nonSha.glass.1..port_a.T|nonSha.glass.1..port_b.T|nonSha.glass.2..port_a.T|nonSha.glass.2..port_b.T",fileNamePrefix="Buildings_9_Buildings.HeatTransfer.Windows.BaseClasses.Examples.CenterOfGlass") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0009799/0.0009796, allocations: 91.06 kB / 15.36 MB, free: 0.7383 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.007702/0.007702, allocations: 172.4 kB / 16.26 MB, free: 6.613 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.407/1.407, allocations: 223.3 MB / 240.3 MB, free: 5.336 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 9.1.3-maint.9.1.x/package.mo): time 2.41/2.41, allocations: 390.9 MB / 0.6663 GB, free: 2.316 MB / 0.5137 GB Notification: Performance of FrontEnd - loaded program: time 0.0003563/0.0003561, allocations: 12 kB / 0.816 GB, free: 13.22 MB / 0.67 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.6982/0.6986, allocations: 142.4 MB / 0.955 GB, free: 7.707 MB / 0.7169 GB Notification: Performance of NFInst.instantiate(Buildings.HeatTransfer.Windows.BaseClasses.Examples.CenterOfGlass): time 0.004309/0.7029, allocations: 4.703 MB / 0.9596 GB, free: 3.984 MB / 0.7169 GB Notification: Performance of NFInst.instExpressions: time 0.006113/0.7091, allocations: 4.581 MB / 0.9641 GB, free: 292 kB / 0.7169 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0007473/0.7099, allocations: 14.22 kB / 0.9641 GB, free: 288 kB / 0.7169 GB Notification: Performance of NFTyping.typeComponents: time 0.001881/0.7117, allocations: 0.5735 MB / 0.9647 GB, free: 15.9 MB / 0.7325 GB Notification: Performance of NFTyping.typeBindings: time 0.001251/0.713, allocations: 364.8 kB / 0.965 GB, free: 15.61 MB / 0.7325 GB Notification: Performance of NFTyping.typeClassSections: time 0.001894/0.7149, allocations: 0.6374 MB / 0.9657 GB, free: 15.13 MB / 0.7325 GB Notification: Performance of NFFlatten.flatten: time 0.00253/0.7175, allocations: 1.904 MB / 0.9675 GB, free: 14.04 MB / 0.7325 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0007978/0.7183, allocations: 0.5275 MB / 0.968 GB, free: 13.74 MB / 0.7325 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0009926/0.7193, allocations: 0.5351 MB / 0.9686 GB, free: 13.45 MB / 0.7325 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001012/0.7203, allocations: 0.6723 MB / 0.9692 GB, free: 13.02 MB / 0.7325 GB Notification: Performance of NFPackage.collectConstants: time 0.000146/0.7205, allocations: 65.62 kB / 0.9693 GB, free: 13.02 MB / 0.7325 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0008945/0.7214, allocations: 313.5 kB / 0.9696 GB, free: 12.91 MB / 0.7325 GB Notification: Performance of NFScalarize.scalarize: time 0.0002769/0.7216, allocations: 260.7 kB / 0.9698 GB, free: 12.71 MB / 0.7325 GB Notification: Performance of NFVerifyModel.verify: time 0.0007264/0.7224, allocations: 0.6244 MB / 0.9704 GB, free: 12.27 MB / 0.7325 GB Notification: Performance of NFConvertDAE.convert: time 0.001996/0.7244, allocations: 1.934 MB / 0.9723 GB, free: 10.94 MB / 0.7325 GB Notification: Performance of FrontEnd - DAE generated: time 5.45e-06/0.7244, allocations: 4 kB / 0.9723 GB, free: 10.93 MB / 0.7325 GB Notification: Performance of FrontEnd: time 1.543e-06/0.7244, allocations: 0 / 0.9723 GB, free: 10.93 MB / 0.7325 GB Notification: Performance of Transformations before backend: time 1.895e-05/0.7244, allocations: 1.156 kB / 0.9723 GB, free: 10.93 MB / 0.7325 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 184 * Number of variables: 184 Notification: Performance of Generate backend data structure: time 0.003345/0.7278, allocations: 1.671 MB / 0.974 GB, free: 9.738 MB / 0.7325 GB Notification: Performance of prepare preOptimizeDAE: time 4.485e-05/0.7278, allocations: 9.812 kB / 0.974 GB, free: 9.738 MB / 0.7325 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.02871/0.7566, allocations: 3.877 MB / 0.9777 GB, free: 7.957 MB / 0.7325 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.03019/0.7868, allocations: 3.817 MB / 0.9815 GB, free: 4.082 MB / 0.7325 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 8.872e-05/0.7869, allocations: 58.38 kB / 0.9815 GB, free: 4.023 MB / 0.7325 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0005964/0.7875, allocations: 80.31 kB / 0.9816 GB, free: 3.945 MB / 0.7325 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.006828/0.7944, allocations: 2.037 MB / 0.9836 GB, free: 1.895 MB / 0.7325 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.187e-05/0.7944, allocations: 4 kB / 0.9836 GB, free: 1.891 MB / 0.7325 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001633/0.7946, allocations: 28 kB / 0.9836 GB, free: 1.863 MB / 0.7325 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.242e-05/0.7946, allocations: 20 kB / 0.9836 GB, free: 1.844 MB / 0.7325 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.006164/0.8008, allocations: 1.737 MB / 0.9853 GB, free: 112 kB / 0.7325 GB 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 0.01134/0.8121, allocations: 7.377 MB / 0.9925 GB, free: 7.914 MB / 0.7481 GB Notification: Performance of preOpt comSubExp (simulation): time 0.006139/0.8183, allocations: 1.825 MB / 0.9943 GB, free: 6.086 MB / 0.7481 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.005584/0.8239, allocations: 1.51 MB / 0.9958 GB, free: 4.566 MB / 0.7481 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0004517/0.8244, allocations: 396.9 kB / 0.9962 GB, free: 4.105 MB / 0.7481 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.085e-05/0.8244, allocations: 39.12 kB / 0.9962 GB, free: 4.059 MB / 0.7481 GB Notification: Performance of pre-optimization done (n=70): time 3.287e-06/0.8244, allocations: 0 / 0.9962 GB, free: 4.059 MB / 0.7481 GB Notification: Performance of matching and sorting (n=70): time 0.05186/0.8763, allocations: 8.838 MB / 1.005 GB, free: 11.18 MB / 0.7637 GB Notification: Performance of inlineWhenForInitialization (initialization): time 7.616e-05/0.8764, allocations: 63.91 kB / 1.005 GB, free: 11.11 MB / 0.7637 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002938/0.8794, allocations: 1.075 MB / 1.006 GB, free: 10.02 MB / 0.7637 GB Notification: Performance of collectPreVariables (initialization): time 0.0006401/0.88, allocations: 37.7 kB / 1.006 GB, free: 9.973 MB / 0.7637 GB Notification: Performance of collectInitialEqns (initialization): time 0.001016/0.8811, allocations: 492.8 kB / 1.006 GB, free: 9.484 MB / 0.7637 GB Notification: Performance of collectInitialBindings (initialization): time 0.0005961/0.8817, allocations: 240.5 kB / 1.007 GB, free: 9.246 MB / 0.7637 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004564/0.8822, allocations: 57.69 kB / 1.007 GB, free: 9.184 MB / 0.7637 GB Notification: Performance of setup shared object (initialization): time 0.0001979/0.8824, allocations: 341.9 kB / 1.007 GB, free: 8.844 MB / 0.7637 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.01846/0.9009, allocations: 2.319 MB / 1.009 GB, free: 6.523 MB / 0.7637 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.01959/0.9205, allocations: 2.437 MB / 1.012 GB, free: 4.047 MB / 0.7637 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.02818/0.9487, allocations: 3.261 MB / 1.015 GB, free: 0.7773 MB / 0.7637 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.591e-05/0.9488, allocations: 3.984 kB / 1.015 GB, free: 0.7734 MB / 0.7637 GB Notification: Performance of matching and sorting (n=82) (initialization): time 0.0511/0.9999, allocations: 6.208 MB / 1.021 GB, free: 10.55 MB / 0.7794 GB Notification: Performance of prepare postOptimizeDAE: time 0.0001175/1, allocations: 99.91 kB / 1.021 GB, free: 10.45 MB / 0.7794 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0362/1.036, allocations: 4.912 MB / 1.026 GB, free: 5.527 MB / 0.7794 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.09457/1.131, allocations: 10.48 MB / 1.036 GB, free: 11.03 MB / 0.795 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004135/1.135, allocations: 387.5 kB / 1.036 GB, free: 10.65 MB / 0.795 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.00799/1.143, allocations: 3.06 MB / 1.039 GB, free: 7.562 MB / 0.795 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005376/1.149, allocations: 418.7 kB / 1.04 GB, free: 7.152 MB / 0.795 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003265/1.149, allocations: 71.92 kB / 1.04 GB, free: 7.082 MB / 0.795 GB Notification: Performance of prepare postOptimizeDAE: time 1.254e-05/1.149, allocations: 4 kB / 1.04 GB, free: 7.078 MB / 0.795 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.02195/1.171, allocations: 5.157 MB / 1.045 GB, free: 1.914 MB / 0.795 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.01865/1.19, allocations: 4.564 MB / 1.049 GB, free: 13.34 MB / 0.8106 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.002438/1.192, allocations: 0.8082 MB / 1.05 GB, free: 12.54 MB / 0.8106 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005034/1.197, allocations: 491.3 kB / 1.051 GB, free: 12.05 MB / 0.8106 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.009416/1.206, allocations: 6.133 MB / 1.057 GB, free: 5.777 MB / 0.8106 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005342/1.212, allocations: 402.9 kB / 1.057 GB, free: 5.383 MB / 0.8106 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003077/1.212, allocations: 75.86 kB / 1.057 GB, free: 5.309 MB / 0.8106 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 (29): * Single equations (assignments): 28 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(11,43)} Notification: Performance of prepare postOptimizeDAE: time 0.000959/1.213, allocations: 484.7 kB / 1.058 GB, free: 4.824 MB / 0.8106 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002829/1.213, allocations: 110.6 kB / 1.058 GB, free: 4.715 MB / 0.8106 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01853/1.232, allocations: 4.768 MB / 1.062 GB, free: 15.93 MB / 0.8262 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.988e-05/1.232, allocations: 8.219 kB / 1.062 GB, free: 15.93 MB / 0.8262 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.749e-06/1.232, allocations: 0 / 1.062 GB, free: 15.93 MB / 0.8262 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.136e-05/1.232, allocations: 7.922 kB / 1.062 GB, free: 15.92 MB / 0.8262 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01968/1.252, allocations: 6.564 MB / 1.069 GB, free: 9.125 MB / 0.8262 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 0.03922/1.291, allocations: 5.159 MB / 1.074 GB, free: 3.953 MB / 0.8262 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.002095/1.293, allocations: 203.7 kB / 1.074 GB, free: 3.754 MB / 0.8262 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.1168/1.41, allocations: 15.21 MB / 1.089 GB, free: 4.523 MB / 0.8419 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.000285/1.41, allocations: 43.94 kB / 1.089 GB, free: 4.48 MB / 0.8419 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.007825/1.418, allocations: 3.092 MB / 1.092 GB, free: 1.363 MB / 0.8419 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.961e-06/1.418, allocations: 4 kB / 1.092 GB, free: 1.359 MB / 0.8419 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0401/1.458, allocations: 5.451 MB / 1.097 GB, free: 11.88 MB / 0.8575 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001177/1.459, allocations: 499.2 kB / 1.098 GB, free: 11.37 MB / 0.8575 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002443/1.46, allocations: 8 kB / 1.098 GB, free: 11.36 MB / 0.8575 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003203/1.463, allocations: 243.6 kB / 1.098 GB, free: 11.12 MB / 0.8575 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001164/1.463, allocations: 44.53 kB / 1.098 GB, free: 11.08 MB / 0.8575 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001349/1.463, allocations: 47.95 kB / 1.098 GB, free: 11.04 MB / 0.8575 GB Notification: Performance of sorting global known variables: time 0.001107/1.464, allocations: 0.7645 MB / 1.099 GB, free: 10.26 MB / 0.8575 GB Notification: Performance of sort global known variables: time 1.7e-07/1.464, allocations: 4 kB / 1.099 GB, free: 10.26 MB / 0.8575 GB Notification: Performance of remove unused functions: time 0.002121/1.466, allocations: 0.7139 MB / 1.099 GB, free: 9.543 MB / 0.8575 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 3 * 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 (17): * Single equations (assignments): 16 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(11,51)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0004374/1.467, allocations: 187 kB / 1.1 GB, free: 9.352 MB / 0.8575 GB Notification: Performance of simCode: created initialization part: time 0.02545/1.492, allocations: 6.343 MB / 1.106 GB, free: 2.98 MB / 0.8575 GB Notification: Performance of simCode: created event and clocks part: time 5.27e-06/1.492, allocations: 0 / 1.106 GB, free: 2.98 MB / 0.8575 GB Notification: Performance of simCode: created simulation system equations: time 0.006255/1.499, allocations: 1.626 MB / 1.107 GB, free: 1.348 MB / 0.8575 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001694/1.5, allocations: 260.5 kB / 1.108 GB, free: 1.098 MB / 0.8575 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.008966/1.509, allocations: 3.862 MB / 1.111 GB, free: 13.21 MB / 0.8731 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0008659/1.51, allocations: 1.298 MB / 1.113 GB, free: 11.88 MB / 0.8731 GB Notification: Performance of simCode: alias equations: time 0.004053/1.514, allocations: 0.8353 MB / 1.114 GB, free: 11.04 MB / 0.8731 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.000688/1.515, allocations: 119.3 kB / 1.114 GB, free: 10.93 MB / 0.8731 GB Notification: Performance of SimCode: time 6.71e-07/1.515, allocations: 0 / 1.114 GB, free: 10.93 MB / 0.8731 GB Notification: Performance of Templates: time 0.09416/1.609, allocations: 66.07 MB / 1.178 GB, free: 8.984 MB / 0.9356 GB make -j1 -f Buildings_9_Buildings.HeatTransfer.Windows.BaseClasses.Examples.CenterOfGlass.makefile (rm -f Buildings_9_Buildings.HeatTransfer.Windows.BaseClasses.Examples.CenterOfGlass.pipe ; mkfifo Buildings_9_Buildings.HeatTransfer.Windows.BaseClasses.Examples.CenterOfGlass.pipe ; head -c 1048576 < Buildings_9_Buildings.HeatTransfer.Windows.BaseClasses.Examples.CenterOfGlass.pipe >> ../files/Buildings_9_Buildings.HeatTransfer.Windows.BaseClasses.Examples.CenterOfGlass.sim & ./Buildings_9_Buildings.HeatTransfer.Windows.BaseClasses.Examples.CenterOfGlass -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS > Buildings_9_Buildings.HeatTransfer.Windows.BaseClasses.Examples.CenterOfGlass.pipe 2>&1) diffSimulationResults("Buildings_9_Buildings.HeatTransfer.Windows.BaseClasses.Examples.CenterOfGlass_res.mat","/mnt/ReferenceFiles/Buildings/csv/maint_9.1.x/Buildings_HeatTransfer_Windows_BaseClasses_Examples_CenterOfGlass.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_9_Buildings.HeatTransfer.Windows.BaseClasses.Examples.CenterOfGlass.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches