Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_9_Buildings.Fluid.Movers.Validation.FlowControlled_m_flow.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.Fluid.Movers.Validation.FlowControlled_m_flow,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|gain.u|floMacSta.dpMachine|floMacDyn.dpMachine|floMacSta.VMachine_flow|floMacDyn.VMachine_flow",fileNamePrefix="Buildings_9_Buildings.Fluid.Movers.Validation.FlowControlled_m_flow") translateModel(Buildings.Fluid.Movers.Validation.FlowControlled_m_flow,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|gain.u|floMacSta.dpMachine|floMacDyn.dpMachine|floMacSta.VMachine_flow|floMacDyn.VMachine_flow",fileNamePrefix="Buildings_9_Buildings.Fluid.Movers.Validation.FlowControlled_m_flow") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001479/0.001479, allocations: 107.7 kB / 15.99 MB, free: 5.91 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001431/0.001431, allocations: 188.5 kB / 16.91 MB, free: 5.758 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.337/1.337, allocations: 222.9 MB / 240.6 MB, free: 13.72 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 9.1.3-maint.9.1.x/package.mo): time 2.255/2.255, allocations: 390.2 MB / 0.665 GB, free: 0.9062 MB / 0.5294 GB Notification: Performance of FrontEnd - loaded program: time 0.001273/0.001273, allocations: 65.98 kB / 0.8127 GB, free: 32.62 MB / 0.6231 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2834/0.2847, allocations: 140.4 MB / 0.9498 GB, free: 9.246 MB / 0.7325 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Movers.Validation.FlowControlled_m_flow): time 0.9706/1.255, allocations: 319.8 MB / 1.262 GB, free: 15.97 MB / 0.9356 GB Notification: Performance of NFInst.instExpressions: time 0.03079/1.286, allocations: 20.08 MB / 1.282 GB, free: 14.12 MB / 0.9512 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.004662/1.291, allocations: 87.5 kB / 1.282 GB, free: 14.04 MB / 0.9512 GB Notification: Performance of NFTyping.typeComponents: time 0.004768/1.296, allocations: 1.353 MB / 1.283 GB, free: 12.68 MB / 0.9512 GB Notification: Performance of NFTyping.typeBindings: time 0.01229/1.308, allocations: 3.97 MB / 1.287 GB, free: 8.695 MB / 0.9512 GB Notification: Performance of NFTyping.typeClassSections: time 0.00681/1.315, allocations: 2.15 MB / 1.289 GB, free: 6.559 MB / 0.9512 GB Notification: Performance of NFFlatten.flatten: time 0.009314/1.324, allocations: 5.957 MB / 1.295 GB, free: 0.5898 MB / 0.9512 GB Notification: Performance of NFFlatten.resolveConnections: time 0.004371/1.329, allocations: 2.156 MB / 1.297 GB, free: 14.39 MB / 0.9669 GB Notification: Performance of NFEvalConstants.evaluate: time 0.008177/1.337, allocations: 3.243 MB / 1.3 GB, free: 11.14 MB / 0.9669 GB Notification: Performance of NFSimplifyModel.simplify: time 0.004423/1.341, allocations: 1.849 MB / 1.302 GB, free: 9.285 MB / 0.9669 GB Notification: Performance of NFPackage.collectConstants: time 0.0009944/1.342, allocations: 224 kB / 1.302 GB, free: 9.066 MB / 0.9669 GB Notification: Performance of NFFlatten.collectFunctions: time 0.008068/1.35, allocations: 3.819 MB / 1.306 GB, free: 5.238 MB / 0.9669 GB Notification: Performance of NFScalarize.scalarize: time 0.001637/1.352, allocations: 0.8881 MB / 1.307 GB, free: 4.348 MB / 0.9669 GB Notification: Performance of NFVerifyModel.verify: time 0.003126/1.355, allocations: 1.341 MB / 1.308 GB, free: 3 MB / 0.9669 GB Notification: Performance of NFConvertDAE.convert: time 0.006487/1.362, allocations: 3.606 MB / 1.312 GB, free: 15.39 MB / 0.9825 GB Notification: Performance of FrontEnd - DAE generated: time 6.221e-06/1.362, allocations: 0 / 1.312 GB, free: 15.39 MB / 0.9825 GB Notification: Performance of FrontEnd: time 1.573e-06/1.362, allocations: 0 / 1.312 GB, free: 15.39 MB / 0.9825 GB Notification: Performance of Transformations before backend: time 0.000151/1.362, allocations: 0 / 1.312 GB, free: 15.39 MB / 0.9825 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 341 * Number of variables: 341 Notification: Performance of Generate backend data structure: time 0.00693/1.369, allocations: 2.981 MB / 1.315 GB, free: 12.34 MB / 0.9825 GB Notification: Performance of prepare preOptimizeDAE: time 3.961e-05/1.369, allocations: 8.031 kB / 1.315 GB, free: 12.34 MB / 0.9825 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.006994/1.376, allocations: 1.008 MB / 1.315 GB, free: 11.32 MB / 0.9825 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.004999/1.381, allocations: 1.936 MB / 1.317 GB, free: 9.312 MB / 0.9825 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0004279/1.381, allocations: 170.9 kB / 1.318 GB, free: 9.145 MB / 0.9825 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0005535/1.382, allocations: 152 kB / 1.318 GB, free: 8.996 MB / 0.9825 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.004677/1.387, allocations: 1.721 MB / 1.319 GB, free: 7.219 MB / 0.9825 GB Notification: Performance of preOpt findStateOrder (simulation): time 4.642e-05/1.387, allocations: 3.938 kB / 1.319 GB, free: 7.215 MB / 0.9825 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0002527/1.387, allocations: 60 kB / 1.319 GB, free: 7.156 MB / 0.9825 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 7.2e-05/1.387, allocations: 50.59 kB / 1.319 GB, free: 7.105 MB / 0.9825 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.003916/1.391, allocations: 1.494 MB / 1.321 GB, free: 5.605 MB / 0.9825 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 0.01267/1.404, allocations: 7.805 MB / 1.329 GB, free: 13.21 MB / 0.9981 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002457/1.406, allocations: 1.161 MB / 1.33 GB, free: 12.01 MB / 0.9981 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001285/1.407, allocations: 0.5567 MB / 1.33 GB, free: 11.45 MB / 0.9981 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002117/1.408, allocations: 109.7 kB / 1.33 GB, free: 11.32 MB / 0.9981 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.099e-05/1.408, allocations: 55.08 kB / 1.33 GB, free: 11.25 MB / 0.9981 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.001039/1.409, allocations: 139.1 kB / 1.331 GB, free: 11.12 MB / 0.9981 GB Notification: Performance of pre-optimization done (n=76): time 4.518e-06/1.409, allocations: 0 / 1.331 GB, free: 11.12 MB / 0.9981 GB Notification: Performance of matching and sorting (n=76): time 0.004352/1.413, allocations: 1.546 MB / 1.332 GB, free: 9.566 MB / 0.9981 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.152e-05/1.413, allocations: 60.06 kB / 1.332 GB, free: 9.496 MB / 0.9981 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002988/1.416, allocations: 1.785 MB / 1.334 GB, free: 7.676 MB / 0.9981 GB Notification: Performance of collectPreVariables (initialization): time 0.0001635/1.416, allocations: 49.7 kB / 1.334 GB, free: 7.621 MB / 0.9981 GB Notification: Performance of collectInitialEqns (initialization): time 0.0008177/1.417, allocations: 0.984 MB / 1.335 GB, free: 6.625 MB / 0.9981 GB Notification: Performance of collectInitialBindings (initialization): time 0.0003254/1.418, allocations: 268.1 kB / 1.335 GB, free: 6.359 MB / 0.9981 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004532/1.418, allocations: 222.4 kB / 1.335 GB, free: 6.137 MB / 0.9981 GB Notification: Performance of setup shared object (initialization): time 0.0001453/1.418, allocations: 353.9 kB / 1.336 GB, free: 5.785 MB / 0.9981 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001255/1.419, allocations: 0.5083 MB / 1.336 GB, free: 5.273 MB / 0.9981 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.00155/1.421, allocations: 0.8876 MB / 1.337 GB, free: 4.215 MB / 0.9981 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.002728/1.424, allocations: 1.338 MB / 1.338 GB, free: 2.746 MB / 0.9981 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.131e-05/1.424, allocations: 4 kB / 1.338 GB, free: 2.742 MB / 0.9981 GB Notification: Performance of matching and sorting (n=126) (initialization): time 0.003716/1.428, allocations: 1.565 MB / 1.34 GB, free: 1.168 MB / 0.9981 GB Notification: Performance of prepare postOptimizeDAE: time 3.236e-05/1.428, allocations: 8 kB / 1.34 GB, free: 1.16 MB / 0.9981 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.63e-05/1.428, allocations: 12 kB / 1.34 GB, free: 1.148 MB / 0.9981 GB Notification: Performance of postOpt tearingSystem (initialization): time 3.292e-05/1.428, allocations: 12 kB / 1.34 GB, free: 1.137 MB / 0.9981 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001427/1.429, allocations: 303.8 kB / 1.34 GB, free: 0.8398 MB / 0.9981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0004066/1.429, allocations: 0.6016 MB / 1.341 GB, free: 220 kB / 0.9981 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001998/1.431, allocations: 165.1 kB / 1.341 GB, free: 56 kB / 0.9981 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001543/1.432, allocations: 60.02 kB / 1.341 GB, free: 15.99 MB / 1.014 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001942/1.434, allocations: 0.8844 MB / 1.342 GB, free: 15.11 MB / 1.014 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.001392/1.435, allocations: 0.8407 MB / 1.343 GB, free: 14.1 MB / 1.014 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.002391/1.437, allocations: 1.248 MB / 1.344 GB, free: 12.72 MB / 1.014 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.457e-05/1.437, allocations: 4 kB / 1.344 GB, free: 12.71 MB / 1.014 GB Notification: Performance of matching and sorting (n=126) (initialization_lambda0): time 0.003751/1.441, allocations: 1.448 MB / 1.345 GB, free: 11.26 MB / 1.014 GB Notification: Performance of prepare postOptimizeDAE: time 2.862e-05/1.441, allocations: 19.06 kB / 1.345 GB, free: 11.25 MB / 1.014 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.173e-05/1.441, allocations: 8 kB / 1.345 GB, free: 11.24 MB / 1.014 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.876e-05/1.441, allocations: 23.92 kB / 1.345 GB, free: 11.21 MB / 1.014 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001187/1.443, allocations: 275.9 kB / 1.346 GB, free: 10.95 MB / 1.014 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 3.45e-05/1.443, allocations: 19.92 kB / 1.346 GB, free: 10.93 MB / 1.014 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002143/1.445, allocations: 161 kB / 1.346 GB, free: 10.77 MB / 1.014 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001205/1.445, allocations: 55.97 kB / 1.346 GB, free: 10.71 MB / 1.014 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 42 * 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 (124): * Single equations (assignments): 121 * Array equations: 2 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 1 system {1} * Without analytic Jacobian (size): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0004127/1.445, allocations: 254.1 kB / 1.346 GB, free: 10.46 MB / 1.014 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0005907/1.446, allocations: 193.6 kB / 1.346 GB, free: 10.27 MB / 1.014 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.003317/1.449, allocations: 1.216 MB / 1.347 GB, free: 9.039 MB / 1.014 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.937e-06/1.449, allocations: 8 kB / 1.347 GB, free: 9.031 MB / 1.014 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 8.325e-06/1.449, allocations: 0 / 1.347 GB, free: 9.031 MB / 1.014 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.002292/1.452, allocations: 1.027 MB / 1.348 GB, free: 7.973 MB / 1.014 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.006942/1.458, allocations: 3.112 MB / 1.352 GB, free: 4.742 MB / 1.014 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.472e-06/1.459, allocations: 0 / 1.352 GB, free: 4.742 MB / 1.014 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001191/1.46, allocations: 227.8 kB / 1.352 GB, free: 4.52 MB / 1.014 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.426e-05/1.46, allocations: 4 kB / 1.352 GB, free: 4.516 MB / 1.014 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 8.201e-05/1.46, allocations: 27.97 kB / 1.352 GB, free: 4.488 MB / 1.014 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0002909/1.46, allocations: 0.5822 MB / 1.352 GB, free: 3.883 MB / 1.014 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.625e-06/1.46, allocations: 3.938 kB / 1.352 GB, free: 3.879 MB / 1.014 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.004065/1.464, allocations: 1.816 MB / 1.354 GB, free: 2.031 MB / 1.014 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0009869/1.465, allocations: 354.6 kB / 1.354 GB, free: 1.664 MB / 1.014 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0005112/1.466, allocations: 20 kB / 1.354 GB, free: 1.645 MB / 1.014 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001668/1.467, allocations: 135.7 kB / 1.355 GB, free: 1.512 MB / 1.014 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001338/1.468, allocations: 56.45 kB / 1.355 GB, free: 1.457 MB / 1.014 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 8.475e-05/1.468, allocations: 27.98 kB / 1.355 GB, free: 1.43 MB / 1.014 GB Notification: Performance of sorting global known variables: time 0.00229/1.47, allocations: 1.228 MB / 1.356 GB, free: 188 kB / 1.014 GB Notification: Performance of sort global known variables: time 2.41e-07/1.47, allocations: 0 / 1.356 GB, free: 188 kB / 1.014 GB Notification: Performance of remove unused functions: time 0.003431/1.473, allocations: 0.9742 MB / 1.357 GB, free: 15.2 MB / 1.029 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * Number of states: 3 (floMacDyn.vol.dynBal.medium.Xi[1],floMacDyn.vol.dynBal.U,floMacDyn.vol.dynBal.m) * 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): 78 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 1 system {1} * Without analytic Jacobian (size): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.001118/1.475, allocations: 367.6 kB / 1.357 GB, free: 14.85 MB / 1.029 GB Notification: Performance of simCode: created initialization part: time 0.004999/1.48, allocations: 1.917 MB / 1.359 GB, free: 12.93 MB / 1.029 GB Notification: Performance of simCode: created event and clocks part: time 5.39e-06/1.48, allocations: 0 / 1.359 GB, free: 12.93 MB / 1.029 GB Notification: Performance of simCode: created simulation system equations: time 0.001315/1.481, allocations: 0.5209 MB / 1.36 GB, free: 12.42 MB / 1.029 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.004909/1.486, allocations: 1.052 MB / 1.361 GB, free: 11.39 MB / 1.029 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.007864/1.494, allocations: 4.493 MB / 1.365 GB, free: 6.836 MB / 1.029 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001549/1.495, allocations: 1.566 MB / 1.366 GB, free: 5.234 MB / 1.029 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0006982/1.496, allocations: 163.4 kB / 1.367 GB, free: 5.074 MB / 1.029 GB Notification: Performance of SimCode: time 9.92e-07/1.496, allocations: 0 / 1.367 GB, free: 5.074 MB / 1.029 GB Notification: Performance of Templates: time 0.06249/1.559, allocations: 43.78 MB / 1.409 GB, free: 9.566 MB / 1.076 GB make -j1 -f Buildings_9_Buildings.Fluid.Movers.Validation.FlowControlled_m_flow.makefile (rm -f Buildings_9_Buildings.Fluid.Movers.Validation.FlowControlled_m_flow.pipe ; mkfifo Buildings_9_Buildings.Fluid.Movers.Validation.FlowControlled_m_flow.pipe ; head -c 1048576 < Buildings_9_Buildings.Fluid.Movers.Validation.FlowControlled_m_flow.pipe >> ../files/Buildings_9_Buildings.Fluid.Movers.Validation.FlowControlled_m_flow.sim & ./Buildings_9_Buildings.Fluid.Movers.Validation.FlowControlled_m_flow -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS > Buildings_9_Buildings.Fluid.Movers.Validation.FlowControlled_m_flow.pipe 2>&1) diffSimulationResults("Buildings_9_Buildings.Fluid.Movers.Validation.FlowControlled_m_flow_res.mat","/mnt/ReferenceFiles/Buildings/csv/maint_9.1.x/Buildings_Fluid_Movers_Validation_FlowControlled_m_flow.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_9_Buildings.Fluid.Movers.Validation.FlowControlled_m_flow.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches