Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_9_Buildings.Fluid.Interfaces.Examples.PrescribedOutlet_X_wSetOnly.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.Interfaces.Examples.PrescribedOutlet_X_wSetOnly,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|heaHigPow.sta_a.T|heaHigPow.sta_b.T|cooLimPow.sta_a.T|cooLimPow.sta_b.T|heaCooUnl.sta_a.T|heaCooUnl.sta_b.T|steSta.sta_b.T|heaHigPow.Q_flow|cooLimPow.Q_flow|heaCooUnl.Q_flow|steSta.Q_flow|setHeaHigPow.y.2.|heaHigPow.port_b.Xi_outflow.1.|setCooLimPow.y.2.|cooLimPow.port_b.Xi_outflow.1.|setHeaCooUnl.y.2.|heaCooUnl.port_b.Xi_outflow.1.|steSta.port_b.Xi_outflow.1.|heaHigPow.mWat_flow|cooLimPow.mWat_flow|heaCooUnl.mWat_flow|steSta.mWat_flow",fileNamePrefix="Buildings_9_Buildings.Fluid.Interfaces.Examples.PrescribedOutlet_X_wSetOnly") translateModel(Buildings.Fluid.Interfaces.Examples.PrescribedOutlet_X_wSetOnly,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|heaHigPow.sta_a.T|heaHigPow.sta_b.T|cooLimPow.sta_a.T|cooLimPow.sta_b.T|heaCooUnl.sta_a.T|heaCooUnl.sta_b.T|steSta.sta_b.T|heaHigPow.Q_flow|cooLimPow.Q_flow|heaCooUnl.Q_flow|steSta.Q_flow|setHeaHigPow.y.2.|heaHigPow.port_b.Xi_outflow.1.|setCooLimPow.y.2.|cooLimPow.port_b.Xi_outflow.1.|setHeaCooUnl.y.2.|heaCooUnl.port_b.Xi_outflow.1.|steSta.port_b.Xi_outflow.1.|heaHigPow.mWat_flow|cooLimPow.mWat_flow|heaCooUnl.mWat_flow|steSta.mWat_flow",fileNamePrefix="Buildings_9_Buildings.Fluid.Interfaces.Examples.PrescribedOutlet_X_wSetOnly") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001326/0.001326, allocations: 106.3 kB / 16.41 MB, free: 6.516 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001383/0.001383, allocations: 192.2 kB / 17.34 MB, free: 5.742 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.371/1.371, allocations: 222.9 MB / 241 MB, free: 15.16 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 2.387/2.387, allocations: 390.2 MB / 0.6655 GB, free: 0.668 MB / 0.5294 GB Notification: Performance of FrontEnd - loaded program: time 0.001404/0.001405, allocations: 63.91 kB / 0.9516 GB, free: 7.656 MB / 0.7325 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.8259/0.8273, allocations: 140.4 MB / 1.089 GB, free: 5.555 MB / 0.8575 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Interfaces.Examples.PrescribedOutlet_X_wSetOnly): time 0.2327/1.06, allocations: 193.8 MB / 1.278 GB, free: 11.84 MB / 1.014 GB Notification: Performance of NFInst.instExpressions: time 0.009766/1.07, allocations: 5.152 MB / 1.283 GB, free: 6.676 MB / 1.014 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001796/1.072, allocations: 47.69 kB / 1.283 GB, free: 6.629 MB / 1.014 GB Notification: Performance of NFTyping.typeComponents: time 0.002214/1.074, allocations: 0.8042 MB / 1.284 GB, free: 5.82 MB / 1.014 GB Notification: Performance of NFTyping.typeBindings: time 0.006573/1.081, allocations: 2.606 MB / 1.286 GB, free: 3.203 MB / 1.014 GB Notification: Performance of NFTyping.typeClassSections: time 0.002876/1.083, allocations: 1.113 MB / 1.287 GB, free: 2.098 MB / 1.014 GB Notification: Performance of NFFlatten.flatten: time 0.003645/1.087, allocations: 2.617 MB / 1.29 GB, free: 15.47 MB / 1.029 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001601/1.089, allocations: 0.8901 MB / 1.291 GB, free: 14.57 MB / 1.029 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002304/1.091, allocations: 1.109 MB / 1.292 GB, free: 13.46 MB / 1.029 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001623/1.093, allocations: 0.9456 MB / 1.293 GB, free: 12.51 MB / 1.029 GB Notification: Performance of NFPackage.collectConstants: time 0.0003156/1.093, allocations: 83.94 kB / 1.293 GB, free: 12.43 MB / 1.029 GB Notification: Performance of NFFlatten.collectFunctions: time 0.003496/1.097, allocations: 1.781 MB / 1.295 GB, free: 10.64 MB / 1.029 GB Notification: Performance of NFScalarize.scalarize: time 0.0005801/1.097, allocations: 438.6 kB / 1.295 GB, free: 10.21 MB / 1.029 GB Notification: Performance of NFVerifyModel.verify: time 0.001126/1.098, allocations: 0.6487 MB / 1.296 GB, free: 9.559 MB / 1.029 GB Notification: Performance of NFConvertDAE.convert: time 0.004274/1.103, allocations: 2.15 MB / 1.298 GB, free: 7.402 MB / 1.029 GB Notification: Performance of FrontEnd - DAE generated: time 5.34e-06/1.103, allocations: 0 / 1.298 GB, free: 7.402 MB / 1.029 GB Notification: Performance of FrontEnd: time 1.994e-06/1.103, allocations: 0 / 1.298 GB, free: 7.402 MB / 1.029 GB Notification: Performance of Transformations before backend: time 6.848e-05/1.103, allocations: 0 / 1.298 GB, free: 7.402 MB / 1.029 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 222 * Number of variables: 222 Notification: Performance of Generate backend data structure: time 0.005641/1.108, allocations: 1.922 MB / 1.3 GB, free: 5.426 MB / 1.029 GB Notification: Performance of prepare preOptimizeDAE: time 4.105e-05/1.108, allocations: 8.031 kB / 1.3 GB, free: 5.418 MB / 1.029 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.003975/1.112, allocations: 0.6654 MB / 1.3 GB, free: 4.75 MB / 1.029 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001784/1.114, allocations: 0.9487 MB / 1.301 GB, free: 3.742 MB / 1.029 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 6.29e-05/1.114, allocations: 70 kB / 1.301 GB, free: 3.676 MB / 1.029 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001886/1.114, allocations: 84 kB / 1.301 GB, free: 3.594 MB / 1.029 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.003235/1.118, allocations: 1.47 MB / 1.303 GB, free: 2.047 MB / 1.029 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.327e-05/1.118, allocations: 7.938 kB / 1.303 GB, free: 2.039 MB / 1.029 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001106/1.118, allocations: 35.98 kB / 1.303 GB, free: 2.004 MB / 1.029 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.545e-05/1.118, allocations: 49.98 kB / 1.303 GB, free: 1.957 MB / 1.029 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.004032/1.122, allocations: 1.518 MB / 1.304 GB, free: 444 kB / 1.029 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 0.007653/1.13, allocations: 5.464 MB / 1.31 GB, free: 10.69 MB / 1.045 GB Notification: Performance of preOpt comSubExp (simulation): time 0.003603/1.133, allocations: 1.281 MB / 1.311 GB, free: 9.395 MB / 1.045 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001619/1.135, allocations: 0.6546 MB / 1.312 GB, free: 8.738 MB / 1.045 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0008369/1.136, allocations: 0.5851 MB / 1.312 GB, free: 8.043 MB / 1.045 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001833/1.138, allocations: 0.7072 MB / 1.313 GB, free: 7.32 MB / 1.045 GB Notification: Performance of pre-optimization done (n=80): time 4.379e-06/1.138, allocations: 0 / 1.313 GB, free: 7.32 MB / 1.045 GB Notification: Performance of matching and sorting (n=80): time 0.005616/1.143, allocations: 1.878 MB / 1.315 GB, free: 5.434 MB / 1.045 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.506e-05/1.143, allocations: 64 kB / 1.315 GB, free: 5.359 MB / 1.045 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001651/1.145, allocations: 1.246 MB / 1.316 GB, free: 4.105 MB / 1.045 GB Notification: Performance of collectPreVariables (initialization): time 0.0001158/1.145, allocations: 45.7 kB / 1.316 GB, free: 4.055 MB / 1.045 GB Notification: Performance of collectInitialEqns (initialization): time 0.0004833/1.146, allocations: 0.5753 MB / 1.317 GB, free: 3.473 MB / 1.045 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002828/1.146, allocations: 280 kB / 1.317 GB, free: 3.195 MB / 1.045 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003209/1.146, allocations: 182.5 kB / 1.317 GB, free: 3.008 MB / 1.045 GB Notification: Performance of setup shared object (initialization): time 0.0001226/1.146, allocations: 345.9 kB / 1.317 GB, free: 2.664 MB / 1.045 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.00158/1.148, allocations: 0.5327 MB / 1.318 GB, free: 2.133 MB / 1.045 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.002017/1.15, allocations: 0.8213 MB / 1.319 GB, free: 1.203 MB / 1.045 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.003359/1.153, allocations: 1.328 MB / 1.32 GB, free: 15.77 MB / 1.061 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 9.558e-06/1.153, allocations: 3.938 kB / 1.32 GB, free: 15.77 MB / 1.061 GB Notification: Performance of matching and sorting (n=117) (initialization): time 0.004075/1.157, allocations: 1.495 MB / 1.321 GB, free: 14.27 MB / 1.061 GB Notification: Performance of prepare postOptimizeDAE: time 2.435e-05/1.157, allocations: 8 kB / 1.322 GB, free: 14.26 MB / 1.061 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.49e-05/1.157, allocations: 8 kB / 1.322 GB, free: 14.25 MB / 1.061 GB Notification: Performance of postOpt tearingSystem (initialization): time 3.036e-05/1.157, allocations: 12 kB / 1.322 GB, free: 14.24 MB / 1.061 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001444/1.159, allocations: 304.1 kB / 1.322 GB, free: 13.94 MB / 1.061 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.977e-05/1.159, allocations: 19.92 kB / 1.322 GB, free: 13.92 MB / 1.061 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00147/1.16, allocations: 194.8 kB / 1.322 GB, free: 13.73 MB / 1.061 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001226/1.161, allocations: 47.97 kB / 1.322 GB, free: 13.68 MB / 1.061 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 33 * Number of states: 0 () * Number of discrete variables: 15 ($PRE.setHeaHigPow.nextTimeEvent,$whenCondition3,$PRE.setCooLimPow.nextTimeEvent,$whenCondition2,$PRE.setHeaCooUnl.nextTimeEvent,$whenCondition1,setHeaCooUnl.nextTimeEventScaled,$PRE.setHeaCooUnl.nextTimeEventScaled,setHeaCooUnl.nextTimeEvent,setCooLimPow.nextTimeEventScaled,$PRE.setCooLimPow.nextTimeEventScaled,setCooLimPow.nextTimeEvent,setHeaHigPow.nextTimeEventScaled,$PRE.setHeaHigPow.nextTimeEventScaled,setHeaHigPow.nextTimeEvent) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (117): * Single equations (assignments): 117 * 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 0.0006213/1.161, allocations: 339.6 kB / 1.322 GB, free: 13.34 MB / 1.061 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0003478/1.162, allocations: 142.2 kB / 1.323 GB, free: 13.2 MB / 1.061 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.003945/1.166, allocations: 1.401 MB / 1.324 GB, free: 11.79 MB / 1.061 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 9.828e-06/1.166, allocations: 12 kB / 1.324 GB, free: 11.78 MB / 1.061 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 7.554e-06/1.166, allocations: 0 / 1.324 GB, free: 11.78 MB / 1.061 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.067e-05/1.166, allocations: 3.984 kB / 1.324 GB, free: 11.77 MB / 1.061 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.006192/1.172, allocations: 2.807 MB / 1.327 GB, free: 8.863 MB / 1.061 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 9.057e-06/1.172, allocations: 4 kB / 1.327 GB, free: 8.859 MB / 1.061 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001251/1.173, allocations: 223.6 kB / 1.327 GB, free: 8.641 MB / 1.061 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.617e-05/1.173, allocations: 8 kB / 1.327 GB, free: 8.633 MB / 1.061 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 8.637e-05/1.173, allocations: 31.97 kB / 1.327 GB, free: 8.602 MB / 1.061 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.267e-05/1.173, allocations: 11.94 kB / 1.327 GB, free: 8.59 MB / 1.061 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.839e-06/1.173, allocations: 4 kB / 1.327 GB, free: 8.586 MB / 1.061 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.005646/1.179, allocations: 2.24 MB / 1.329 GB, free: 6.281 MB / 1.061 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0006048/1.18, allocations: 299.2 kB / 1.329 GB, free: 5.969 MB / 1.061 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0003003/1.18, allocations: 23.98 kB / 1.329 GB, free: 5.945 MB / 1.061 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001214/1.181, allocations: 107.9 kB / 1.33 GB, free: 5.84 MB / 1.061 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001456/1.181, allocations: 68.36 kB / 1.33 GB, free: 5.773 MB / 1.061 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 8.464e-05/1.181, allocations: 35.98 kB / 1.33 GB, free: 5.738 MB / 1.061 GB Notification: Performance of sorting global known variables: time 0.001227/1.183, allocations: 0.8561 MB / 1.33 GB, free: 4.879 MB / 1.061 GB Notification: Performance of sort global known variables: time 1.4e-07/1.183, allocations: 4 kB / 1.33 GB, free: 4.875 MB / 1.061 GB Notification: Performance of remove unused functions: time 0.001128/1.184, allocations: 319.6 kB / 1.331 GB, free: 4.562 MB / 1.061 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 17 * Number of states: 3 (heaHigPow.Xi,cooLimPow.Xi,heaCooUnl.Xi) * Number of discrete variables: 9 ($whenCondition3,$whenCondition2,$whenCondition1,setHeaHigPow.nextTimeEvent,setHeaHigPow.nextTimeEventScaled,setCooLimPow.nextTimeEvent,setCooLimPow.nextTimeEventScaled,setHeaCooUnl.nextTimeEvent,setHeaCooUnl.nextTimeEventScaled) * Number of discrete states: 6 (setHeaHigPow.nextTimeEvent,setCooLimPow.nextTimeEvent,setHeaCooUnl.nextTimeEvent,setHeaCooUnl.nextTimeEventScaled,setCooLimPow.nextTimeEventScaled,setHeaHigPow.nextTimeEventScaled) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (80): * Single equations (assignments): 74 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 6 * 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 0.00132/1.185, allocations: 0.5308 MB / 1.331 GB, free: 4.195 MB / 1.061 GB Notification: Performance of simCode: created initialization part: time 0.003717/1.189, allocations: 1.286 MB / 1.333 GB, free: 2.91 MB / 1.061 GB Notification: Performance of simCode: created event and clocks part: time 7.254e-06/1.189, allocations: 4 kB / 1.333 GB, free: 2.906 MB / 1.061 GB Notification: Performance of simCode: created simulation system equations: time 0.001813/1.191, allocations: 0.6443 MB / 1.333 GB, free: 2.262 MB / 1.061 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003008/1.194, allocations: 0.5907 MB / 1.334 GB, free: 1.68 MB / 1.061 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.005499/1.199, allocations: 2.626 MB / 1.336 GB, free: 14.96 MB / 1.076 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.000896/1.2, allocations: 1.167 MB / 1.337 GB, free: 13.77 MB / 1.076 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0005753/1.201, allocations: 127.4 kB / 1.338 GB, free: 13.64 MB / 1.076 GB Notification: Performance of SimCode: time 1.022e-06/1.201, allocations: 0 / 1.338 GB, free: 13.64 MB / 1.076 GB Notification: Performance of Templates: time 0.03273/1.233, allocations: 20.48 MB / 1.358 GB, free: 9.328 MB / 1.092 GB make -j1 -f Buildings_9_Buildings.Fluid.Interfaces.Examples.PrescribedOutlet_X_wSetOnly.makefile (rm -f Buildings_9_Buildings.Fluid.Interfaces.Examples.PrescribedOutlet_X_wSetOnly.pipe ; mkfifo Buildings_9_Buildings.Fluid.Interfaces.Examples.PrescribedOutlet_X_wSetOnly.pipe ; head -c 1048576 < Buildings_9_Buildings.Fluid.Interfaces.Examples.PrescribedOutlet_X_wSetOnly.pipe >> ../files/Buildings_9_Buildings.Fluid.Interfaces.Examples.PrescribedOutlet_X_wSetOnly.sim & ./Buildings_9_Buildings.Fluid.Interfaces.Examples.PrescribedOutlet_X_wSetOnly -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS > Buildings_9_Buildings.Fluid.Interfaces.Examples.PrescribedOutlet_X_wSetOnly.pipe 2>&1) diffSimulationResults("Buildings_9_Buildings.Fluid.Interfaces.Examples.PrescribedOutlet_X_wSetOnly_res.mat","/mnt/ReferenceFiles/Buildings/csv/maint_9.1.x/Buildings_Fluid_Interfaces_Examples_PrescribedOutlet_X_wSetOnly.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_9_Buildings.Fluid.Interfaces.Examples.PrescribedOutlet_X_wSetOnly.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches