Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr ModelicaTest_4.0.0_ModelicaTest.Fluid.TestPipesAndValves.BranchingPipes3.conf.json 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/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 4.0.0+maint.om/package.mo", uses=false) Using package ModelicaTest with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 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) 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) Running command: translateModel(ModelicaTest.Fluid.TestPipesAndValves.BranchingPipes3,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|pipe1.mediums.1..h|pipe1.mediums.1..p|pipe2.mediums.1..h|pipe2.mediums.1..p|pipe3.mediums.1..h|pipe3.mediums.1..p|valveOpening1.a|valveOpening1.b|valveOpening1.last|valveOpening1.nextEvent|valveOpening2.a|valveOpening2.b|valveOpening2.last|valveOpening2.nextEvent",fileNamePrefix="ModelicaTest_4.0.0_ModelicaTest.Fluid.TestPipesAndValves.BranchingPipes3") translateModel(ModelicaTest.Fluid.TestPipesAndValves.BranchingPipes3,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|pipe1.mediums.1..h|pipe1.mediums.1..p|pipe2.mediums.1..h|pipe2.mediums.1..p|pipe3.mediums.1..h|pipe3.mediums.1..p|valveOpening1.a|valveOpening1.b|valveOpening1.last|valveOpening1.nextEvent|valveOpening2.a|valveOpening2.b|valveOpening2.last|valveOpening2.nextEvent",fileNamePrefix="ModelicaTest_4.0.0_ModelicaTest.Fluid.TestPipesAndValves.BranchingPipes3") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001245/0.001245, allocations: 176.5 kB / 17.06 MB, free: 5.098 MB / 13.93 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.443/1.443, allocations: 223.2 MB / 241 MB, free: 11.89 MB / 202.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001043/0.001043, allocations: 95.08 kB / 292.1 MB, free: 10.94 MB / 234.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 4.0.0+maint.om/package.mo): time 0.3957/0.3957, allocations: 44.22 MB / 387.5 MB, free: 38.8 MB / 298.7 MB Notification: Performance of FrontEnd - loaded program: time 0.0003828/0.0003834, allocations: 8 kB / 459.9 MB, free: 1.551 MB / 330.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.4122/0.4127, allocations: 61.91 MB / 0.5096 GB, free: 38.03 MB / 378.7 MB Notification: Performance of FrontEnd - scodeFlatten: time 6.236/6.648, allocations: 2.848 GB / 3.357 GB, free: 119.8 MB / 0.5261 GB Notification: Performance of FrontEnd - mkProgramGraph: time 0.0002133/6.649, allocations: 89.3 kB / 3.357 GB, free: 119.8 MB / 0.5261 GB Notification: Performance of FrontEnd - DAE generated: time 2.93/9.579, allocations: 0.8849 GB / 4.242 GB, free: 39.45 MB / 0.5573 GB Notification: Performance of FrontEnd: time 2.345e-06/9.579, allocations: 0 / 4.242 GB, free: 39.45 MB / 0.5573 GB Notification: Performance of Transformations before backend: time 0.0002944/9.579, allocations: 57.22 kB / 4.242 GB, free: 39.43 MB / 0.5573 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 476 * Number of variables: 476 Notification: Performance of Generate backend data structure: time 0.0158/9.595, allocations: 4.027 MB / 4.246 GB, free: 37.41 MB / 0.5573 GB Notification: Performance of prepare preOptimizeDAE: time 4.763e-05/9.595, allocations: 9.531 kB / 4.246 GB, free: 37.41 MB / 0.5573 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.006335/9.602, allocations: 0.7974 MB / 4.247 GB, free: 37.27 MB / 0.5573 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.006974/9.609, allocations: 2.001 MB / 4.249 GB, free: 36.77 MB / 0.5573 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002623/9.609, allocations: 165.5 kB / 4.249 GB, free: 36.77 MB / 0.5573 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.00096/9.61, allocations: 181.4 kB / 4.249 GB, free: 36.77 MB / 0.5573 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.008846/9.619, allocations: 3.277 MB / 4.252 GB, free: 36.27 MB / 0.5573 GB Notification: Performance of preOpt findStateOrder (simulation): time 8.104e-05/9.619, allocations: 10.14 kB / 4.252 GB, free: 36.26 MB / 0.5573 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0005568/9.619, allocations: 80.59 kB / 4.253 GB, free: 36.26 MB / 0.5573 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.000198/9.62, allocations: 150.6 kB / 4.253 GB, free: 36.26 MB / 0.5573 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.006565/9.626, allocations: 2.961 MB / 4.256 GB, free: 36.21 MB / 0.5573 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 0.0176/9.644, allocations: 14.05 MB / 4.269 GB, free: 26.02 MB / 0.5573 GB Notification: Performance of preOpt comSubExp (simulation): time 0.004671/9.649, allocations: 2.081 MB / 4.271 GB, free: 25.4 MB / 0.5573 GB Notification: Performance of preOpt evalFunc (simulation): time 0.04295/9.692, allocations: 24.61 MB / 4.295 GB, free: 25.08 MB / 0.573 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.004655/9.696, allocations: 1.621 MB / 4.297 GB, free: 24.58 MB / 0.573 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.00167/9.698, allocations: 180.3 kB / 4.297 GB, free: 24.47 MB / 0.573 GB Notification: Performance of pre-optimization done (n=155): time 7.434e-06/9.698, allocations: 0 / 4.297 GB, free: 24.47 MB / 0.573 GB Notification: Performance of matching and sorting (n=167): time 0.02247/9.72, allocations: 8.522 MB / 4.305 GB, free: 17.45 MB / 0.573 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001616/9.721, allocations: 264.1 kB / 4.306 GB, free: 17.14 MB / 0.573 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.00241/9.723, allocations: 1.344 MB / 4.307 GB, free: 16 MB / 0.573 GB Notification: Performance of collectPreVariables (initialization): time 0.0002906/9.723, allocations: 57.7 kB / 4.307 GB, free: 15.94 MB / 0.573 GB Notification: Performance of collectInitialEqns (initialization): time 0.0007938/9.724, allocations: 0.8787 MB / 4.308 GB, free: 15.13 MB / 0.573 GB Notification: Performance of collectInitialBindings (initialization): time 0.0005244/9.725, allocations: 0.5593 MB / 4.308 GB, free: 14.63 MB / 0.573 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001635/9.725, allocations: 36 kB / 4.308 GB, free: 14.59 MB / 0.573 GB Notification: Performance of setup shared object (initialization): time 0.0001976/9.725, allocations: 373.4 kB / 4.309 GB, free: 14.24 MB / 0.573 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001962/9.727, allocations: 1.03 MB / 4.31 GB, free: 13.39 MB / 0.573 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.00241/9.73, allocations: 1.446 MB / 4.311 GB, free: 12 MB / 0.573 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.00233/9.732, allocations: 1.255 MB / 4.312 GB, free: 10.88 MB / 0.573 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.086e-05/9.732, allocations: 8 kB / 4.312 GB, free: 10.88 MB / 0.573 GB Notification: Performance of matching and sorting (n=230) (initialization): time 0.00682/9.739, allocations: 3.188 MB / 4.316 GB, free: 8.074 MB / 0.573 GB Notification: Performance of prepare postOptimizeDAE: time 0.001683/9.74, allocations: 3.847 MB / 4.319 GB, free: 3.898 MB / 0.573 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.774e-05/9.74, allocations: 15.95 kB / 4.319 GB, free: 3.883 MB / 0.573 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.002694/9.743, allocations: 0.5242 MB / 4.32 GB, free: 3.488 MB / 0.573 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002221/9.745, allocations: 451.5 kB / 4.32 GB, free: 3.117 MB / 0.573 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002272/9.748, allocations: 2.711 MB / 4.323 GB, free: 460 kB / 0.573 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003056/9.751, allocations: 265.7 kB / 4.323 GB, free: 252 kB / 0.573 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0005784/9.751, allocations: 95.88 kB / 4.323 GB, free: 164 kB / 0.573 GB Notification: Performance of prepare postOptimizeDAE: time 2.093e-05/9.751, allocations: 5.719 kB / 4.323 GB, free: 160 kB / 0.573 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.3743/10.13, allocations: 2.875 MB / 4.326 GB, free: 54.94 MB / 0.573 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.342e-05/10.13, allocations: 9.406 kB / 4.326 GB, free: 54.94 MB / 0.573 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0006376/10.13, allocations: 214.4 kB / 4.326 GB, free: 54.92 MB / 0.573 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001818/10.13, allocations: 465.5 kB / 4.327 GB, free: 54.92 MB / 0.573 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0008386/10.13, allocations: 1.871 MB / 4.329 GB, free: 53.37 MB / 0.573 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002506/10.13, allocations: 259.9 kB / 4.329 GB, free: 53.37 MB / 0.573 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0002097/10.13, allocations: 96.78 kB / 4.329 GB, free: 53.37 MB / 0.573 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 42 * Number of states: 0 () * Number of discrete variables: 29 (valveIncompressible1.state_b.phase,valveIncompressible1.state_a.phase,valveIncompressible.state_b.phase,valveIncompressible.state_a.phase,$whenCondition1,$whenCondition2,source.medium.phase,pipe1.statesFM[2].phase,sink.medium.phase,pipe2.statesFM[2].phase,pipe3.statesFM[2].phase,valveOpening1.a,valveOpening1.b,valveOpening1.last,$PRE.valveOpening1.nextEvent,valveOpening1.nextEvent,valveOpening1.nextEventScaled,valveOpening2.a,valveOpening2.b,valveOpening2.last,$PRE.valveOpening2.nextEvent,valveOpening2.nextEvent,valveOpening2.nextEventScaled,pipe3.state_a.phase,pipe3.state_b.phase,pipe2.state_a.phase,pipe2.state_b.phase,pipe1.state_a.phase,pipe1.state_b.phase) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (211): * Single equations (assignments): 205 * Array equations: 0 * Algorithm blocks: 2 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 4 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 4 {1 1,1 1,1 1,2 5} Notification: Performance of prepare postOptimizeDAE: time 0.001437/10.13, allocations: 0.7125 MB / 4.33 GB, free: 53.12 MB / 0.573 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0004176/10.13, allocations: 200.2 kB / 4.33 GB, free: 53.12 MB / 0.573 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.009243/10.14, allocations: 7.563 MB / 4.337 GB, free: 52.57 MB / 0.573 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.052e-05/10.14, allocations: 80.8 kB / 4.337 GB, free: 52.57 MB / 0.573 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.211e-05/10.14, allocations: 0 / 4.337 GB, free: 52.57 MB / 0.573 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.00739/10.15, allocations: 6.618 MB / 4.344 GB, free: 51.66 MB / 0.573 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01758/10.17, allocations: 11.41 MB / 4.355 GB, free: 50.64 MB / 0.573 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.861e-05/10.17, allocations: 8.328 kB / 4.355 GB, free: 50.64 MB / 0.573 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001532/10.17, allocations: 363.4 kB / 4.355 GB, free: 50.64 MB / 0.573 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.002689/10.17, allocations: 1.179 MB / 4.356 GB, free: 50.59 MB / 0.573 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0002767/10.17, allocations: 66.56 kB / 4.356 GB, free: 50.59 MB / 0.573 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.00193/10.17, allocations: 3.183 MB / 4.36 GB, free: 48.52 MB / 0.573 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 8.355e-06/10.17, allocations: 16.52 kB / 4.36 GB, free: 48.52 MB / 0.573 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01089/10.19, allocations: 7.619 MB / 4.367 GB, free: 47.27 MB / 0.573 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002069/10.19, allocations: 0.7323 MB / 4.368 GB, free: 47.01 MB / 0.573 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0007956/10.19, allocations: 54.11 kB / 4.368 GB, free: 47.01 MB / 0.573 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.00242/10.19, allocations: 193.3 kB / 4.368 GB, free: 47 MB / 0.573 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0004038/10.19, allocations: 152.8 kB / 4.368 GB, free: 47 MB / 0.573 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.000249/10.19, allocations: 82.27 kB / 4.368 GB, free: 46.99 MB / 0.573 GB Notification: Performance of sorting global known variables: time 0.003006/10.19, allocations: 1.222 MB / 4.369 GB, free: 46.85 MB / 0.573 GB Notification: Performance of sort global known variables: time 4.81e-07/10.19, allocations: 0 / 4.369 GB, free: 46.85 MB / 0.573 GB Notification: Performance of remove unused functions: time 0.01391/10.21, allocations: 2.637 MB / 4.372 GB, free: 46.85 MB / 0.573 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 19 * Number of states: 6 (pipe1.mediums[1].p,pipe1.mediums[1].h,pipe2.mediums[1].p,pipe2.mediums[1].h,pipe3.mediums[1].p,pipe3.mediums[1].h) * Number of discrete variables: 55 ($cse3.phase,$cse3.region,$cse5.region3boundary,$cse6.region3boundary,$cse7.phase,$cse7.region,$cse9.phase,$cse9.region,$cse10.phase,$cse10.region,$cse15.phase,$cse15.region,$cse16.phase,$cse16.region,$cse18.phase,$cse18.region,$cse19.phase,$cse19.region,$cse24.phase,$cse24.region,$cse25.phase,$cse25.region,$cse27.phase,$cse27.region,$cse30.phase,$cse30.region,$cse32.region3boundary,$cse33.region3boundary,$cse34.phase,$cse34.region,$cse36.phase,$cse36.region,$cse37.region3boundary,$cse38.region3boundary,$cse39.phase,$cse39.region,$cse41.phase,$cse41.region,$whenCondition1,$whenCondition2,source.medium.phase,pipe1.statesFM[2].phase,sink.medium.phase,pipe2.statesFM[2].phase,pipe3.statesFM[2].phase,valveOpening1.a,valveOpening1.b,valveOpening1.last,valveOpening1.nextEvent,valveOpening1.nextEventScaled,valveOpening2.a,valveOpening2.b,valveOpening2.last,valveOpening2.nextEvent,valveOpening2.nextEventScaled) * Number of discrete states: 12 (valveOpening2.nextEvent,valveOpening2.last,valveOpening2.nextEventScaled,valveOpening2.b,valveOpening2.a,$whenCondition2,valveOpening1.nextEvent,valveOpening1.last,valveOpening1.nextEventScaled,valveOpening1.b,valveOpening1.a,$whenCondition1) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (179): * Single equations (assignments): 153 * Array equations: 0 * Algorithm blocks: 2 * Record equations: 20 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 4 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 4 {1 1,1 1,1 1,2 12} Notification: Performance of Backend phase and start with SimCode phase: time 0.01306/10.22, allocations: 2.774 MB / 4.375 GB, free: 46.66 MB / 0.573 GB Notification: Performance of simCode: created initialization part: time 0.01023/10.23, allocations: 4.881 MB / 4.379 GB, free: 46.34 MB / 0.573 GB Notification: Performance of simCode: created event and clocks part: time 1.175e-05/10.23, allocations: 3.25 kB / 4.379 GB, free: 46.34 MB / 0.573 GB Notification: Performance of simCode: created simulation system equations: time 0.004063/10.24, allocations: 2.52 MB / 4.382 GB, free: 46.19 MB / 0.573 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.006004/10.24, allocations: 0.9747 MB / 4.383 GB, free: 46.17 MB / 0.573 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01347/10.26, allocations: 8.216 MB / 4.391 GB, free: 43 MB / 0.573 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002693/10.26, allocations: 2.193 MB / 4.393 GB, free: 42.23 MB / 0.573 GB Notification: Performance of simCode: alias equations: time 0.005124/10.26, allocations: 2.308 MB / 4.395 GB, free: 42.2 MB / 0.573 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0008813/10.26, allocations: 190.5 kB / 4.395 GB, free: 42.2 MB / 0.573 GB Notification: Performance of SimCode: time 7.01e-07/10.26, allocations: 0 / 4.395 GB, free: 42.2 MB / 0.573 GB Notification: Performance of Templates: time 0.1207/10.39, allocations: 83.13 MB / 4.477 GB, free: 37.91 MB / 0.573 GB make -j1 -f ModelicaTest_4.0.0_ModelicaTest.Fluid.TestPipesAndValves.BranchingPipes3.makefile (rm -f ModelicaTest_4.0.0_ModelicaTest.Fluid.TestPipesAndValves.BranchingPipes3.pipe ; mkfifo ModelicaTest_4.0.0_ModelicaTest.Fluid.TestPipesAndValves.BranchingPipes3.pipe ; head -c 1048576 < ModelicaTest_4.0.0_ModelicaTest.Fluid.TestPipesAndValves.BranchingPipes3.pipe >> ../files/ModelicaTest_4.0.0_ModelicaTest.Fluid.TestPipesAndValves.BranchingPipes3.sim & ./ModelicaTest_4.0.0_ModelicaTest.Fluid.TestPipesAndValves.BranchingPipes3 -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS > ModelicaTest_4.0.0_ModelicaTest.Fluid.TestPipesAndValves.BranchingPipes3.pipe 2>&1) diffSimulationResults("ModelicaTest_4.0.0_ModelicaTest.Fluid.TestPipesAndValves.BranchingPipes3_res.mat","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v4.0.0/ModelicaTest/Fluid/TestPipesAndValves/BranchingPipes3/BranchingPipes3.csv","../files/ModelicaTest_4.0.0_ModelicaTest.Fluid.TestPipesAndValves.BranchingPipes3.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches