Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_9_Buildings.Fluid.Actuators.Valves.Validation.ThreeWayValveParameterization.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 9.1.2-maint.9.1.x/package.mo", uses=false) Using package Buildings with version 9.1.2 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 9.1.2-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.Actuators.Valves.Validation.ThreeWayValveParameterization,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|senM_flowOpPoi.m_flow|senM_flowKv.m_flow|senM_flowCv.m_flow|senM_flowAv.m_flow",fileNamePrefix="Buildings_9_Buildings.Fluid.Actuators.Valves.Validation.ThreeWayValveParameterization") translateModel(Buildings.Fluid.Actuators.Valves.Validation.ThreeWayValveParameterization,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|senM_flowOpPoi.m_flow|senM_flowKv.m_flow|senM_flowCv.m_flow|senM_flowAv.m_flow",fileNamePrefix="Buildings_9_Buildings.Fluid.Actuators.Valves.Validation.ThreeWayValveParameterization") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001454/0.001454, allocations: 100.1 kB / 15.88 MB, free: 12 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001768/0.001768, allocations: 196.1 kB / 16.79 MB, free: 6.809 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.406/1.406, allocations: 222.9 MB / 240.5 MB, free: 4.617 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 9.1.2-maint.9.1.x/package.mo): time 2.471/2.471, allocations: 390.2 MB / 0.6649 GB, free: 0.582 MB / 0.5137 GB Notification: Performance of FrontEnd - loaded program: time 0.001855/0.001856, allocations: 63.89 kB / 0.8125 GB, free: 14.87 MB / 0.67 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.5798/0.5817, allocations: 140.4 MB / 0.9496 GB, free: 9.449 MB / 0.7169 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Actuators.Valves.Validation.ThreeWayValveParameterization): time 0.1375/0.7193, allocations: 153.4 MB / 1.099 GB, free: 8.438 MB / 0.8575 GB Notification: Performance of NFInst.instExpressions: time 0.03992/0.7593, allocations: 30.47 MB / 1.129 GB, free: 9.895 MB / 0.8887 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.005097/0.7644, allocations: 131.1 kB / 1.129 GB, free: 9.766 MB / 0.8887 GB Notification: Performance of NFTyping.typeComponents: time 0.002992/0.7675, allocations: 0.8194 MB / 1.13 GB, free: 8.941 MB / 0.8887 GB Notification: Performance of NFTyping.typeBindings: time 0.0103/0.7778, allocations: 2.894 MB / 1.133 GB, free: 6.039 MB / 0.8887 GB Notification: Performance of NFTyping.typeClassSections: time 0.008402/0.7862, allocations: 2.28 MB / 1.135 GB, free: 3.793 MB / 0.8887 GB Notification: Performance of NFFlatten.flatten: time 0.01088/0.7971, allocations: 7.401 MB / 1.142 GB, free: 12.36 MB / 0.9044 GB Notification: Performance of NFFlatten.resolveConnections: time 0.003394/0.8005, allocations: 1.9 MB / 1.144 GB, free: 10.42 MB / 0.9044 GB Notification: Performance of NFEvalConstants.evaluate: time 0.005349/0.8059, allocations: 2.431 MB / 1.147 GB, free: 7.977 MB / 0.9044 GB Notification: Performance of NFSimplifyModel.simplify: time 0.003388/0.8093, allocations: 1.972 MB / 1.148 GB, free: 5.996 MB / 0.9044 GB Notification: Performance of NFPackage.collectConstants: time 0.0005961/0.8099, allocations: 120 kB / 1.149 GB, free: 5.879 MB / 0.9044 GB Notification: Performance of NFFlatten.collectFunctions: time 0.00258/0.8125, allocations: 0.9632 MB / 1.15 GB, free: 4.914 MB / 0.9044 GB Notification: Performance of NFScalarize.scalarize: time 0.0006983/0.8133, allocations: 481.8 kB / 1.15 GB, free: 4.441 MB / 0.9044 GB Notification: Performance of NFVerifyModel.verify: time 0.001836/0.8151, allocations: 1.173 MB / 1.151 GB, free: 3.262 MB / 0.9044 GB Notification: Performance of NFConvertDAE.convert: time 0.002829/0.8179, allocations: 2.487 MB / 1.154 GB, free: 0.7695 MB / 0.9044 GB Notification: Performance of FrontEnd - DAE generated: time 3.587e-06/0.818, allocations: 0 / 1.154 GB, free: 0.7695 MB / 0.9044 GB Notification: Performance of FrontEnd: time 1.142e-06/0.818, allocations: 0 / 1.154 GB, free: 0.7695 MB / 0.9044 GB Notification: Performance of Transformations before backend: time 8.825e-05/0.8181, allocations: 4 kB / 1.154 GB, free: 0.7656 MB / 0.9044 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 297 * Number of variables: 297 Notification: Performance of Generate backend data structure: time 0.006114/0.8242, allocations: 2.795 MB / 1.156 GB, free: 13.91 MB / 0.92 GB Notification: Performance of prepare preOptimizeDAE: time 4.015e-05/0.8242, allocations: 8.031 kB / 1.156 GB, free: 13.9 MB / 0.92 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0004662/0.8247, allocations: 264.8 kB / 1.157 GB, free: 13.64 MB / 0.92 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002073/0.8268, allocations: 1.438 MB / 1.158 GB, free: 12.12 MB / 0.92 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 7.864e-05/0.8269, allocations: 102.3 kB / 1.158 GB, free: 12.02 MB / 0.92 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001896/0.8271, allocations: 144 kB / 1.158 GB, free: 11.88 MB / 0.92 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.00206/0.8292, allocations: 1.163 MB / 1.159 GB, free: 10.69 MB / 0.92 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.045e-05/0.8292, allocations: 3.938 kB / 1.159 GB, free: 10.69 MB / 0.92 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001043/0.8293, allocations: 44 kB / 1.159 GB, free: 10.64 MB / 0.92 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.208e-05/0.8293, allocations: 31.94 kB / 1.159 GB, free: 10.61 MB / 0.92 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001791/0.8311, allocations: 1.02 MB / 1.16 GB, free: 9.586 MB / 0.92 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 0.009403/0.8406, allocations: 6.32 MB / 1.167 GB, free: 2.801 MB / 0.92 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0009465/0.8415, allocations: 0.5697 MB / 1.167 GB, free: 2.227 MB / 0.92 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0005804/0.8421, allocations: 386.3 kB / 1.168 GB, free: 1.844 MB / 0.92 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0003934/0.8425, allocations: 0.507 MB / 1.168 GB, free: 1.227 MB / 0.92 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.066e-05/0.8426, allocations: 35.12 kB / 1.168 GB, free: 1.184 MB / 0.92 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.00143/0.844, allocations: 338.7 kB / 1.168 GB, free: 0.8516 MB / 0.92 GB Notification: Performance of pre-optimization done (n=58): time 2.625e-06/0.844, allocations: 0 / 1.168 GB, free: 0.8516 MB / 0.92 GB Notification: Performance of matching and sorting (n=58): time 0.00205/0.8461, allocations: 1.113 MB / 1.169 GB, free: 15.73 MB / 0.9356 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.983e-05/0.8461, allocations: 63.97 kB / 1.17 GB, free: 15.66 MB / 0.9356 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002231/0.8483, allocations: 1.9 MB / 1.171 GB, free: 13.73 MB / 0.9356 GB Notification: Performance of collectPreVariables (initialization): time 7.9e-05/0.8484, allocations: 45.7 kB / 1.171 GB, free: 13.68 MB / 0.9356 GB Notification: Performance of collectInitialEqns (initialization): time 0.0007306/0.8492, allocations: 0.9185 MB / 1.172 GB, free: 12.75 MB / 0.9356 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001575/0.8493, allocations: 205.1 kB / 1.172 GB, free: 12.55 MB / 0.9356 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004224/0.8498, allocations: 298.6 kB / 1.173 GB, free: 12.25 MB / 0.9356 GB Notification: Performance of setup shared object (initialization): time 0.0001336/0.8499, allocations: 357.9 kB / 1.173 GB, free: 11.89 MB / 0.9356 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0007873/0.8507, allocations: 445.9 kB / 1.174 GB, free: 11.45 MB / 0.9356 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001013/0.8517, allocations: 0.6723 MB / 1.174 GB, free: 10.7 MB / 0.9356 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001534/0.8533, allocations: 0.9579 MB / 1.175 GB, free: 9.703 MB / 0.9356 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.12e-06/0.8533, allocations: 3.938 kB / 1.175 GB, free: 9.699 MB / 0.9356 GB Notification: Performance of matching and sorting (n=150) (initialization): time 0.002542/0.8558, allocations: 1.401 MB / 1.177 GB, free: 8.289 MB / 0.9356 GB Notification: Performance of prepare postOptimizeDAE: time 2.251e-05/0.8559, allocations: 8 kB / 1.177 GB, free: 8.281 MB / 0.9356 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.237e-06/0.8559, allocations: 0 / 1.177 GB, free: 8.281 MB / 0.9356 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.48e-05/0.8559, allocations: 12.05 kB / 1.177 GB, free: 8.27 MB / 0.9356 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001247/0.8572, allocations: 287.5 kB / 1.177 GB, free: 7.988 MB / 0.9356 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.738e-05/0.8572, allocations: 11.94 kB / 1.177 GB, free: 7.977 MB / 0.9356 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001582/0.8588, allocations: 163.6 kB / 1.177 GB, free: 7.816 MB / 0.9356 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001261/0.8589, allocations: 55.95 kB / 1.177 GB, free: 7.762 MB / 0.9356 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001256/0.8602, allocations: 0.7094 MB / 1.178 GB, free: 7.047 MB / 0.9356 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0009531/0.8611, allocations: 0.6528 MB / 1.178 GB, free: 6.312 MB / 0.9356 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001409/0.8626, allocations: 0.9032 MB / 1.179 GB, free: 5.371 MB / 0.9356 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 3.256e-06/0.8626, allocations: 0 / 1.179 GB, free: 5.371 MB / 0.9356 GB Notification: Performance of matching and sorting (n=150) (initialization_lambda0): time 0.002304/0.8649, allocations: 1.353 MB / 1.181 GB, free: 4.008 MB / 0.9356 GB Notification: Performance of prepare postOptimizeDAE: time 2.267e-05/0.8649, allocations: 14.02 kB / 1.181 GB, free: 3.996 MB / 0.9356 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.502e-06/0.8649, allocations: 4 kB / 1.181 GB, free: 3.992 MB / 0.9356 GB Notification: Performance of postOpt tearingSystem (initialization): time 9.969e-06/0.865, allocations: 8 kB / 1.181 GB, free: 3.984 MB / 0.9356 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001173/0.8661, allocations: 287.9 kB / 1.181 GB, free: 3.703 MB / 0.9356 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.23e-05/0.8662, allocations: 8 kB / 1.181 GB, free: 3.695 MB / 0.9356 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001605/0.8678, allocations: 159.5 kB / 1.181 GB, free: 3.539 MB / 0.9356 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 9.916e-05/0.8679, allocations: 55.95 kB / 1.181 GB, free: 3.484 MB / 0.9356 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 14 * 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 (150): * Single equations (assignments): 150 * 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 0.0002668/0.8681, allocations: 236 kB / 1.181 GB, free: 3.246 MB / 0.9356 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002769/0.8684, allocations: 201.5 kB / 1.181 GB, free: 3.047 MB / 0.9356 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.00205/0.8705, allocations: 1.07 MB / 1.183 GB, free: 1.969 MB / 0.9356 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.229e-05/0.8705, allocations: 8 kB / 1.183 GB, free: 1.961 MB / 0.9356 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 8.466e-06/0.8705, allocations: 7.938 kB / 1.183 GB, free: 1.953 MB / 0.9356 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 8.696e-06/0.8705, allocations: 3.984 kB / 1.183 GB, free: 1.949 MB / 0.9356 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.003556/0.8741, allocations: 2.406 MB / 1.185 GB, free: 15.46 MB / 0.9512 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.172e-06/0.8741, allocations: 0 / 1.185 GB, free: 15.46 MB / 0.9512 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0005828/0.8747, allocations: 135.8 kB / 1.185 GB, free: 15.33 MB / 0.9512 GB Notification: Performance of postOpt tearingSystem (simulation): time 8.126e-06/0.8747, allocations: 4 kB / 1.185 GB, free: 15.33 MB / 0.9512 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.629e-05/0.8748, allocations: 24.17 kB / 1.185 GB, free: 15.3 MB / 0.9512 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 6.202e-06/0.8748, allocations: 4 kB / 1.185 GB, free: 15.3 MB / 0.9512 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.823e-06/0.8748, allocations: 4 kB / 1.185 GB, free: 15.3 MB / 0.9512 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001495/0.8763, allocations: 1.05 MB / 1.186 GB, free: 14.21 MB / 0.9512 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0005548/0.8769, allocations: 354.3 kB / 1.186 GB, free: 13.84 MB / 0.9512 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002323/0.8771, allocations: 20 kB / 1.186 GB, free: 13.82 MB / 0.9512 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0009074/0.878, allocations: 95.69 kB / 1.187 GB, free: 13.73 MB / 0.9512 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001124/0.8782, allocations: 52.58 kB / 1.187 GB, free: 13.68 MB / 0.9512 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.06e-05/0.8782, allocations: 24 kB / 1.187 GB, free: 13.65 MB / 0.9512 GB Notification: Performance of sorting global known variables: time 0.001705/0.8799, allocations: 1.256 MB / 1.188 GB, free: 12.38 MB / 0.9512 GB Notification: Performance of sort global known variables: time 2.5e-07/0.8799, allocations: 4 kB / 1.188 GB, free: 12.38 MB / 0.9512 GB Notification: Performance of remove unused functions: time 0.002114/0.8821, allocations: 0.9082 MB / 1.189 GB, free: 11.47 MB / 0.9512 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 7 * 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 (77): * Single equations (assignments): 74 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 3 * 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 0.0006992/0.8828, allocations: 341.3 kB / 1.189 GB, free: 11.14 MB / 0.9512 GB Notification: Performance of simCode: created initialization part: time 0.002762/0.8855, allocations: 1.607 MB / 1.191 GB, free: 9.535 MB / 0.9512 GB Notification: Performance of simCode: created event and clocks part: time 2.735e-06/0.8856, allocations: 0 / 1.191 GB, free: 9.535 MB / 0.9512 GB Notification: Performance of simCode: created simulation system equations: time 0.0006143/0.8862, allocations: 399.8 kB / 1.191 GB, free: 9.148 MB / 0.9512 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.005084/0.8913, allocations: 1.138 MB / 1.192 GB, free: 8.023 MB / 0.9512 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.005392/0.8967, allocations: 3.755 MB / 1.196 GB, free: 4.207 MB / 0.9512 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0009156/0.8976, allocations: 1.409 MB / 1.197 GB, free: 2.762 MB / 0.9512 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0005412/0.8982, allocations: 159.4 kB / 1.197 GB, free: 2.609 MB / 0.9512 GB Notification: Performance of SimCode: time 1.032e-06/0.8982, allocations: 0 / 1.197 GB, free: 2.609 MB / 0.9512 GB Notification: Performance of Templates: time 0.04506/0.9432, allocations: 31.18 MB / 1.228 GB, free: 3.762 MB / 0.9825 GB make -j1 -f Buildings_9_Buildings.Fluid.Actuators.Valves.Validation.ThreeWayValveParameterization.makefile (rm -f Buildings_9_Buildings.Fluid.Actuators.Valves.Validation.ThreeWayValveParameterization.pipe ; mkfifo Buildings_9_Buildings.Fluid.Actuators.Valves.Validation.ThreeWayValveParameterization.pipe ; head -c 1048576 < Buildings_9_Buildings.Fluid.Actuators.Valves.Validation.ThreeWayValveParameterization.pipe >> ../files/Buildings_9_Buildings.Fluid.Actuators.Valves.Validation.ThreeWayValveParameterization.sim & ./Buildings_9_Buildings.Fluid.Actuators.Valves.Validation.ThreeWayValveParameterization -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS > Buildings_9_Buildings.Fluid.Actuators.Valves.Validation.ThreeWayValveParameterization.pipe 2>&1) diffSimulationResults("Buildings_9_Buildings.Fluid.Actuators.Valves.Validation.ThreeWayValveParameterization_res.mat","/mnt/ReferenceFiles/Buildings/csv/maint_9.1.x/Buildings_Fluid_Actuators_Valves_Validation_ThreeWayValveParameterization.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_9_Buildings.Fluid.Actuators.Valves.Validation.ThreeWayValveParameterization.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches