Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.StraightPipe.kc_overall.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices trunk/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex trunk/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica trunk/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest trunk/package.mo", uses=false) Using package ModelicaTest with version trunk (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest trunk/package.mo) Using package Modelica with version trunk (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica trunk/package.mo) Using package Complex with version trunk (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex trunk/package.mo) Using package ModelicaServices with version trunk (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices trunk/package.mo) Running command: translateModel(ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.StraightPipe.kc_overall,tolerance=1e-05,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|cp.1.|cp.2.|cp.3.|eta.1.|eta.2.|eta.3.|lambda.1.|lambda.2.|lambda.3.|rho.1.|rho.2.|rho.3.|m_flow.1.|m_flow.2.|m_flow.3.|Re_1.1.|Re_1.2.|Re_1.3.|Nu_1.1.|Nu_1.2.|Nu_1.3.|Nu_2.1.|Nu_2.2.|Nu_2.3.|Nu_3.1.|Nu_3.2.|Nu_3.3.|Nu_4.1.|Nu_4.2.|Nu_4.3.|Re|Pr.1.|Pr.2.|Pr.3.|input_mflow_0.y|input_mflow_1.y|input_mflow_2.y",fileNamePrefix="ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.StraightPipe.kc_overall") translateModel(ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.StraightPipe.kc_overall,tolerance=1e-05,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|cp.1.|cp.2.|cp.3.|eta.1.|eta.2.|eta.3.|lambda.1.|lambda.2.|lambda.3.|rho.1.|rho.2.|rho.3.|m_flow.1.|m_flow.2.|m_flow.3.|Re_1.1.|Re_1.2.|Re_1.3.|Nu_1.1.|Nu_1.2.|Nu_1.3.|Nu_2.1.|Nu_2.2.|Nu_2.3.|Nu_3.1.|Nu_3.2.|Nu_3.3.|Nu_4.1.|Nu_4.2.|Nu_4.3.|Re|Pr.1.|Pr.2.|Pr.3.|input_mflow_0.y|input_mflow_1.y|input_mflow_2.y",fileNamePrefix="ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.StraightPipe.kc_overall") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices trunk/package.mo): time 0.001434/0.001435, allocations: 118.2 kB / 17.79 MB, free: 5.277 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex trunk/package.mo): time 0.001595/0.001595, allocations: 198 kB / 18.73 MB, free: 4.34 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica trunk/package.mo): time 1.535/1.535, allocations: 227.4 MB / 246.9 MB, free: 10.52 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest trunk/package.mo): time 0.2212/0.2212, allocations: 46.1 MB / 344.3 MB, free: 11.52 MB / 286.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001366/0.001366, allocations: 71.89 kB / 481.3 MB, free: 4.043 MB / 350.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.4009/0.4023, allocations: 62.44 MB / 0.531 GB, free: 13.6 MB / 398.1 MB Notification: Performance of NFInst.instantiate(ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.StraightPipe.kc_overall): time 0.00385/0.4062, allocations: 2.274 MB / 0.5332 GB, free: 11.82 MB / 398.1 MB Notification: Performance of NFInst.instExpressions: time 0.003394/0.4096, allocations: 2.147 MB / 0.5353 GB, free: 10.12 MB / 398.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0001773/0.4098, allocations: 2.094 kB / 0.5353 GB, free: 10.12 MB / 398.1 MB Notification: Performance of NFTyping.typeComponents: time 0.0003164/0.4101, allocations: 73.61 kB / 0.5354 GB, free: 10.07 MB / 398.1 MB Notification: Performance of NFTyping.typeBindings: time 0.0003058/0.4105, allocations: 121.5 kB / 0.5355 GB, free: 9.969 MB / 398.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.001217/0.4117, allocations: 452.8 kB / 0.536 GB, free: 9.676 MB / 398.1 MB Notification: Performance of NFFlatten.flatten: time 0.0006054/0.4123, allocations: 0.5251 MB / 0.5365 GB, free: 9.375 MB / 398.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.0001175/0.4125, allocations: 68.94 kB / 0.5365 GB, free: 9.344 MB / 398.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0003264/0.4128, allocations: 189.3 kB / 0.5367 GB, free: 9.242 MB / 398.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.0003198/0.4131, allocations: 210.1 kB / 0.5369 GB, free: 9.117 MB / 398.1 MB Notification: Performance of NFPackage.collectConstants: time 4.515e-05/0.4132, allocations: 14.47 kB / 0.5369 GB, free: 9.117 MB / 398.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.001274/0.4145, allocations: 0.6984 MB / 0.5376 GB, free: 8.691 MB / 398.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0001369/0.4146, allocations: 98.44 kB / 0.5377 GB, free: 8.625 MB / 398.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0002432/0.4149, allocations: 207.6 kB / 0.5379 GB, free: 8.488 MB / 398.1 MB Notification: Performance of NFConvertDAE.convert: time 0.001248/0.4161, allocations: 0.8555 MB / 0.5387 GB, free: 7.926 MB / 398.1 MB Notification: Performance of FrontEnd - DAE generated: time 5.29e-06/0.4161, allocations: 0 / 0.5387 GB, free: 7.926 MB / 398.1 MB Notification: Performance of FrontEnd: time 2.174e-06/0.4162, allocations: 0 / 0.5387 GB, free: 7.926 MB / 398.1 MB Notification: Performance of Transformations before backend: time 9.007e-06/0.4162, allocations: 0 / 0.5387 GB, free: 7.926 MB / 398.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 146 * Number of variables: 146 Notification: Performance of Generate backend data structure: time 0.001541/0.4177, allocations: 0.8423 MB / 0.5396 GB, free: 7.23 MB / 398.1 MB Notification: Performance of prepare preOptimizeDAE: time 4.907e-05/0.4178, allocations: 9.094 kB / 0.5396 GB, free: 7.23 MB / 398.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0005238/0.4183, allocations: 87.11 kB / 0.5397 GB, free: 7.191 MB / 398.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0005484/0.4189, allocations: 324.7 kB / 0.54 GB, free: 6.902 MB / 398.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.983e-05/0.4189, allocations: 39.44 kB / 0.54 GB, free: 6.887 MB / 398.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 7.86e-05/0.419, allocations: 55.69 kB / 0.5401 GB, free: 6.867 MB / 398.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001198/0.4202, allocations: 0.7643 MB / 0.5408 GB, free: 6.426 MB / 398.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 1.608e-05/0.4202, allocations: 0 / 0.5408 GB, free: 6.426 MB / 398.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 4.525e-05/0.4203, allocations: 28.38 kB / 0.5408 GB, free: 6.402 MB / 398.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.081e-05/0.4203, allocations: 29.61 kB / 0.5409 GB, free: 6.398 MB / 398.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001014/0.4214, allocations: 0.5452 MB / 0.5414 GB, free: 6.148 MB / 398.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.002591/0.424, allocations: 1.687 MB / 0.543 GB, free: 4.926 MB / 398.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.0005974/0.4246, allocations: 306.6 kB / 0.5433 GB, free: 4.754 MB / 398.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0003562/0.4249, allocations: 148.8 kB / 0.5435 GB, free: 4.68 MB / 398.1 MB Notification: Performance of preOpt evalFunc (simulation): time 5.708e-05/0.425, allocations: 9.703 kB / 0.5435 GB, free: 4.676 MB / 398.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.073e-05/0.4251, allocations: 36.09 kB / 0.5435 GB, free: 4.633 MB / 398.1 MB Notification: Performance of pre-optimization done (n=20): time 1.813e-06/0.4251, allocations: 1.438 kB / 0.5435 GB, free: 4.633 MB / 398.1 MB Notification: Performance of matching and sorting (n=20): time 0.001282/0.4264, allocations: 0.5054 MB / 0.544 GB, free: 4.172 MB / 398.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 9.187e-05/0.4265, allocations: 106.8 kB / 0.5441 GB, free: 4.043 MB / 398.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0007118/0.4272, allocations: 0.6395 MB / 0.5447 GB, free: 3.391 MB / 398.1 MB Notification: Performance of collectPreVariables (initialization): time 3.013e-05/0.4272, allocations: 33.7 kB / 0.5448 GB, free: 3.352 MB / 398.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0002069/0.4274, allocations: 291.4 kB / 0.545 GB, free: 3.062 MB / 398.1 MB Notification: Performance of collectInitialBindings (initialization): time 6.377e-05/0.4275, allocations: 71 kB / 0.5451 GB, free: 2.992 MB / 398.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001727/0.4277, allocations: 122.1 kB / 0.5452 GB, free: 2.863 MB / 398.1 MB Notification: Performance of setup shared object (initialization): time 0.0001496/0.4278, allocations: 366.8 kB / 0.5456 GB, free: 2.496 MB / 398.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0004007/0.4282, allocations: 188.9 kB / 0.5458 GB, free: 2.312 MB / 398.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0005818/0.4288, allocations: 469.2 kB / 0.5462 GB, free: 1.727 MB / 398.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.001028/0.4299, allocations: 0.6709 MB / 0.5469 GB, free: 0.9258 MB / 398.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.843e-06/0.4299, allocations: 4 kB / 0.5469 GB, free: 0.9219 MB / 398.1 MB Notification: Performance of matching and sorting (n=60) (initialization): time 0.001294/0.4312, allocations: 0.6944 MB / 0.5475 GB, free: 228 kB / 398.1 MB Notification: Performance of prepare postOptimizeDAE: time 2.416e-05/0.4312, allocations: 11.94 kB / 0.5476 GB, free: 216 kB / 398.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.221e-05/0.4313, allocations: 51.98 kB / 0.5476 GB, free: 164 kB / 398.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 2.506e-05/0.4314, allocations: 12 kB / 0.5476 GB, free: 152 kB / 398.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000284/0.4317, allocations: 75.81 kB / 0.5477 GB, free: 76 kB / 398.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.97e-05/0.4317, allocations: 19.88 kB / 0.5477 GB, free: 56 kB / 398.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004949/0.4322, allocations: 99.08 kB / 0.5478 GB, free: 15.95 MB / 414.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.852e-05/0.4323, allocations: 32 kB / 0.5478 GB, free: 15.92 MB / 414.1 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 42 * Number of states: 0 () * Number of discrete variables: 24 (m_flow_IN_con_4[3].roughness,m_flow_IN_con_4[3].target,m_flow_IN_con_4[2].roughness,m_flow_IN_con_4[2].target,m_flow_IN_con_4[1].roughness,m_flow_IN_con_4[1].target,m_flow_IN_con_3[3].roughness,m_flow_IN_con_3[3].target,m_flow_IN_con_3[2].roughness,m_flow_IN_con_3[2].target,m_flow_IN_con_3[1].roughness,m_flow_IN_con_3[1].target,m_flow_IN_con_2[3].roughness,m_flow_IN_con_2[3].target,m_flow_IN_con_2[2].roughness,m_flow_IN_con_2[2].target,m_flow_IN_con_2[1].roughness,m_flow_IN_con_2[1].target,m_flow_IN_con_1[3].roughness,m_flow_IN_con_1[3].target,m_flow_IN_con_1[2].roughness,m_flow_IN_con_1[2].target,m_flow_IN_con_1[1].roughness,m_flow_IN_con_1[1].target) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (57): * Single equations (assignments): 45 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 12 * 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 0.0003278/0.4326, allocations: 261.5 kB / 0.5481 GB, free: 15.66 MB / 414.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001141/0.4327, allocations: 51.28 kB / 0.5481 GB, free: 15.61 MB / 414.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0009084/0.4336, allocations: 469.7 kB / 0.5486 GB, free: 15.14 MB / 414.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 9.147e-06/0.4336, allocations: 4 kB / 0.5486 GB, free: 15.14 MB / 414.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 7.073e-06/0.4337, allocations: 0 / 0.5486 GB, free: 15.14 MB / 414.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.994e-06/0.4337, allocations: 7.922 kB / 0.5486 GB, free: 15.13 MB / 414.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.000603/0.4343, allocations: 409.2 kB / 0.549 GB, free: 14.68 MB / 414.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.248e-05/0.4343, allocations: 39.98 kB / 0.549 GB, free: 14.64 MB / 414.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001545/0.4345, allocations: 23.97 kB / 0.549 GB, free: 14.62 MB / 414.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 4.218e-06/0.4345, allocations: 7.938 kB / 0.5491 GB, free: 14.61 MB / 414.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.548e-05/0.4346, allocations: 12 kB / 0.5491 GB, free: 14.6 MB / 414.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 4.789e-06/0.4346, allocations: 11.92 kB / 0.5491 GB, free: 14.59 MB / 414.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 8.617e-06/0.4346, allocations: 8 kB / 0.5491 GB, free: 14.58 MB / 414.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0008797/0.4355, allocations: 0.6187 MB / 0.5497 GB, free: 13.94 MB / 414.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0001202/0.4356, allocations: 128.5 kB / 0.5498 GB, free: 13.8 MB / 414.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 6.803e-05/0.4357, allocations: 7.938 kB / 0.5498 GB, free: 13.79 MB / 414.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.000279/0.436, allocations: 19.97 kB / 0.5498 GB, free: 13.77 MB / 414.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 8.841e-05/0.4361, allocations: 19.98 kB / 0.5499 GB, free: 13.75 MB / 414.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 3.002e-05/0.4361, allocations: 16 kB / 0.5499 GB, free: 13.73 MB / 414.1 MB Notification: Performance of sorting global known variables: time 0.0005536/0.4367, allocations: 446.7 kB / 0.5503 GB, free: 13.3 MB / 414.1 MB Notification: Performance of sort global known variables: time 1.9e-07/0.4367, allocations: 0 / 0.5503 GB, free: 13.3 MB / 414.1 MB Notification: Performance of remove unused functions: time 0.0007931/0.4375, allocations: 195.8 kB / 0.5505 GB, free: 13.11 MB / 414.1 MB 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): 5 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 12 * 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 0.0004796/0.4379, allocations: 239 kB / 0.5507 GB, free: 12.87 MB / 414.1 MB Notification: Performance of simCode: created initialization part: time 0.001116/0.4391, allocations: 0.7533 MB / 0.5514 GB, free: 12.04 MB / 414.1 MB Notification: Performance of simCode: created event and clocks part: time 2.385e-06/0.4391, allocations: 0 / 0.5514 GB, free: 12.04 MB / 414.1 MB Notification: Performance of simCode: created simulation system equations: time 0.0005095/0.4396, allocations: 482.8 kB / 0.5519 GB, free: 11.5 MB / 414.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0007246/0.4403, allocations: 129.8 kB / 0.552 GB, free: 11.37 MB / 414.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001815/0.4422, allocations: 0.9963 MB / 0.553 GB, free: 10.34 MB / 414.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005586/0.4427, allocations: 0.8933 MB / 0.5539 GB, free: 9.422 MB / 414.1 MB Notification: Performance of simCode: alias equations: time 0.0003176/0.4431, allocations: 132.4 kB / 0.554 GB, free: 9.289 MB / 414.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 9.18e-05/0.4432, allocations: 35.44 kB / 0.554 GB, free: 9.254 MB / 414.1 MB Notification: Performance of SimCode: time 2.71e-07/0.4432, allocations: 4 kB / 0.554 GB, free: 9.25 MB / 414.1 MB Notification: Performance of Templates: time 0.018/0.4612, allocations: 10.6 MB / 0.5644 GB, free: 14.75 MB / 430.1 MB make -j1 -f ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.StraightPipe.kc_overall.makefile (rm -f ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.StraightPipe.kc_overall.pipe ; mkfifo ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.StraightPipe.kc_overall.pipe ; head -c 1048576 < ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.StraightPipe.kc_overall.pipe >> ../files/ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.StraightPipe.kc_overall.sim & ./ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.StraightPipe.kc_overall -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS > ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.StraightPipe.kc_overall.pipe 2>&1) diffSimulationResults("ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.StraightPipe.kc_overall_res.mat","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v4.0.0/ModelicaTest/Fluid/Dissipation/Verifications/HeatTransfer/StraightPipe/kc_overall/kc_overall.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.StraightPipe.kc_overall.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches