Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_11_Buildings.Fluid.Geothermal.Boreholes.BaseClasses.Examples.SingleUTubeBoundaryCondition.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 11.1.0-maint.11.x/package.mo", uses=false) Using package Buildings with version 11.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.0-maint.11.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.Geothermal.Boreholes.BaseClasses.Examples.SingleUTubeBoundaryCondition,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|TBouSte.port.T|TBouCon.port.T|TBouPul.port.T",fileNamePrefix="Buildings_11_Buildings.Fluid.Geothermal.Boreholes.BaseClasses.Examples.SingleUTubeBoundaryCondition") translateModel(Buildings.Fluid.Geothermal.Boreholes.BaseClasses.Examples.SingleUTubeBoundaryCondition,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|TBouSte.port.T|TBouCon.port.T|TBouPul.port.T",fileNamePrefix="Buildings_11_Buildings.Fluid.Geothermal.Boreholes.BaseClasses.Examples.SingleUTubeBoundaryCondition") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.004482/0.004482, allocations: 98.55 kB / 15.73 MB, free: 6.02 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001059/0.001059, allocations: 194.9 kB / 16.67 MB, free: 5.934 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.329/1.329, allocations: 222.9 MB / 240.4 MB, free: 15.08 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.0-maint.11.x/package.mo): time 2.613/2.613, allocations: 469.8 MB / 0.7425 GB, free: 3.332 MB / 0.6075 GB Notification: Performance of FrontEnd - loaded program: time 0.001244/0.001244, allocations: 67.91 kB / 1.065 GB, free: 13.53 MB / 0.8419 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.6779/0.6791, allocations: 159.1 MB / 1.221 GB, free: 2.098 MB / 0.9356 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Geothermal.Boreholes.BaseClasses.Examples.SingleUTubeBoundaryCondition): time 0.003263/0.6824, allocations: 2.353 MB / 1.223 GB, free: 15.73 MB / 0.9512 GB Notification: Performance of NFInst.instExpressions: time 0.001392/0.6838, allocations: 0.9971 MB / 1.224 GB, free: 14.73 MB / 0.9512 GB Notification: Performance of NFInst.updateImplicitVariability: time 9.497e-05/0.6839, allocations: 7.938 kB / 1.224 GB, free: 14.72 MB / 0.9512 GB Notification: Performance of NFTyping.typeComponents: time 0.0001986/0.6841, allocations: 55.56 kB / 1.224 GB, free: 14.67 MB / 0.9512 GB Notification: Performance of NFTyping.typeBindings: time 0.0001638/0.6842, allocations: 87.33 kB / 1.224 GB, free: 14.58 MB / 0.9512 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.0-maint.11.x/Fluid/Geothermal/Boreholes/BaseClasses/temperatureDrop.mo:2:1-109:20:writable] Warning: Pure function 'Buildings.Fluid.Geothermal.Boreholes.BaseClasses.temperatureDrop' contains a call to impure function 'Buildings.Fluid.Geothermal.Boreholes.BaseClasses.exchangeValues'. Notification: Performance of NFTyping.typeClassSections: time 0.0004393/0.6847, allocations: 157.4 kB / 1.224 GB, free: 14.43 MB / 0.9512 GB Notification: Performance of NFFlatten.flatten: time 0.0002801/0.685, allocations: 286.8 kB / 1.224 GB, free: 14.15 MB / 0.9512 GB Notification: Performance of NFFlatten.resolveConnections: time 9.326e-05/0.685, allocations: 28.39 kB / 1.224 GB, free: 14.12 MB / 0.9512 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0001481/0.6852, allocations: 119.5 kB / 1.225 GB, free: 14 MB / 0.9512 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0001351/0.6853, allocations: 103.5 kB / 1.225 GB, free: 13.9 MB / 0.9512 GB Notification: Performance of NFPackage.collectConstants: time 3.326e-05/0.6854, allocations: 24 kB / 1.225 GB, free: 13.88 MB / 0.9512 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0002504/0.6856, allocations: 119.8 kB / 1.225 GB, free: 13.76 MB / 0.9512 GB Notification: Performance of NFScalarize.scalarize: time 5.031e-05/0.6857, allocations: 51.77 kB / 1.225 GB, free: 13.71 MB / 0.9512 GB Notification: Performance of NFVerifyModel.verify: time 9.714e-05/0.6858, allocations: 111.5 kB / 1.225 GB, free: 13.6 MB / 0.9512 GB Notification: Performance of NFConvertDAE.convert: time 0.0003572/0.6861, allocations: 315.3 kB / 1.225 GB, free: 13.29 MB / 0.9512 GB Notification: Performance of FrontEnd - DAE generated: time 3.327e-06/0.6861, allocations: 3.938 kB / 1.225 GB, free: 13.29 MB / 0.9512 GB Notification: Performance of FrontEnd: time 1.192e-06/0.6861, allocations: 0 / 1.225 GB, free: 13.29 MB / 0.9512 GB Notification: Performance of Transformations before backend: time 5.811e-06/0.6861, allocations: 0 / 1.225 GB, free: 13.29 MB / 0.9512 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 27 * Number of variables: 27 Notification: Performance of Generate backend data structure: time 0.0009059/0.687, allocations: 0.6095 MB / 1.226 GB, free: 12.62 MB / 0.9512 GB Notification: Performance of prepare preOptimizeDAE: time 3.267e-05/0.6871, allocations: 8.031 kB / 1.226 GB, free: 12.61 MB / 0.9512 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 6.92e-05/0.6871, allocations: 28.75 kB / 1.226 GB, free: 12.59 MB / 0.9512 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0004278/0.6876, allocations: 291.2 kB / 1.226 GB, free: 12.27 MB / 0.9512 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 1.799e-05/0.6876, allocations: 12.61 kB / 1.226 GB, free: 12.25 MB / 0.9512 GB Notification: Performance of preOpt expandDerOperator (simulation): time 4.28e-05/0.6876, allocations: 20.31 kB / 1.226 GB, free: 12.23 MB / 0.9512 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0003878/0.688, allocations: 204.6 kB / 1.226 GB, free: 12.01 MB / 0.9512 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.181e-05/0.688, allocations: 0 / 1.226 GB, free: 12.01 MB / 0.9512 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.438e-05/0.688, allocations: 15.92 kB / 1.226 GB, free: 12 MB / 0.9512 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 7.764e-06/0.6881, allocations: 0 / 1.226 GB, free: 12 MB / 0.9512 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0003548/0.6884, allocations: 115.8 kB / 1.227 GB, free: 11.88 MB / 0.9512 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0009181/0.6893, allocations: 0.8684 MB / 1.227 GB, free: 10.95 MB / 0.9512 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0004669/0.6898, allocations: 199.8 kB / 1.228 GB, free: 10.72 MB / 0.9512 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0001974/0.69, allocations: 82.61 kB / 1.228 GB, free: 10.63 MB / 0.9512 GB Notification: Performance of preOpt evalFunc (simulation): time 1.405e-05/0.69, allocations: 4 kB / 1.228 GB, free: 10.63 MB / 0.9512 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.000371/0.6904, allocations: 200.6 kB / 1.228 GB, free: 10.41 MB / 0.9512 GB Notification: Performance of pre-optimization done (n=23): time 1.463e-06/0.6904, allocations: 0 / 1.228 GB, free: 10.41 MB / 0.9512 GB Notification: Performance of matching and sorting (n=23): time 0.000834/0.6912, allocations: 357.5 kB / 1.228 GB, free: 10.06 MB / 0.9512 GB Notification: Performance of inlineWhenForInitialization (initialization): time 6.644e-05/0.6913, allocations: 122.8 kB / 1.228 GB, free: 9.914 MB / 0.9512 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.000207/0.6915, allocations: 246.4 kB / 1.229 GB, free: 9.668 MB / 0.9512 GB Notification: Performance of collectPreVariables (initialization): time 3.17e-05/0.6915, allocations: 41.69 kB / 1.229 GB, free: 9.621 MB / 0.9512 GB Notification: Performance of collectInitialEqns (initialization): time 8.576e-05/0.6916, allocations: 136.7 kB / 1.229 GB, free: 9.484 MB / 0.9512 GB Notification: Performance of collectInitialBindings (initialization): time 5.132e-05/0.6917, allocations: 67.5 kB / 1.229 GB, free: 9.418 MB / 0.9512 GB Notification: Performance of simplifyInitialFunctions (initialization): time 9.274e-05/0.6917, allocations: 81.95 kB / 1.229 GB, free: 9.328 MB / 0.9512 GB Notification: Performance of setup shared object (initialization): time 0.0001054/0.6919, allocations: 338.8 kB / 1.229 GB, free: 8.988 MB / 0.9512 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002317/0.6921, allocations: 88.69 kB / 1.229 GB, free: 8.902 MB / 0.9512 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0002977/0.6924, allocations: 247.2 kB / 1.23 GB, free: 8.578 MB / 0.9512 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0005267/0.6929, allocations: 388.5 kB / 1.23 GB, free: 8.109 MB / 0.9512 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.669e-06/0.6929, allocations: 4 kB / 1.23 GB, free: 8.105 MB / 0.9512 GB Notification: Performance of matching and sorting (n=47) (initialization): time 0.0006916/0.6936, allocations: 398.7 kB / 1.23 GB, free: 7.703 MB / 0.9512 GB Notification: Performance of prepare postOptimizeDAE: time 3.451e-05/0.6936, allocations: 33.7 kB / 1.23 GB, free: 7.664 MB / 0.9512 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.747e-06/0.6936, allocations: 8 kB / 1.23 GB, free: 7.656 MB / 0.9512 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.712e-05/0.6937, allocations: 8 kB / 1.23 GB, free: 7.648 MB / 0.9512 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002112/0.6939, allocations: 68.44 kB / 1.23 GB, free: 7.582 MB / 0.9512 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.551e-05/0.6939, allocations: 23.86 kB / 1.23 GB, free: 7.559 MB / 0.9512 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002331/0.6941, allocations: 39.81 kB / 1.23 GB, free: 7.52 MB / 0.9512 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.535e-05/0.6942, allocations: 20 kB / 1.23 GB, free: 7.5 MB / 0.9512 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 27 * Number of states: 0 () * Number of discrete variables: 32 (TBouSte.QAve_flow,$PRE.TBouSte.QAve_flow,TBouSte.UOld,$PRE.TBouSte.UOld,TBouSte.port.T,$PRE.TBouSte.port.T,TBouSte.iSam,$PRE.TBouSte.iSam,$whenCondition4,TBouCon.QAve_flow,$PRE.TBouCon.QAve_flow,TBouCon.UOld,$PRE.TBouCon.UOld,TBouCon.port.T,$PRE.TBouCon.port.T,TBouCon.iSam,$PRE.TBouCon.iSam,$whenCondition3,TBouPul.QAve_flow,$PRE.TBouPul.QAve_flow,TBouPul.UOld,$PRE.TBouPul.UOld,TBouPul.port.T,$PRE.TBouPul.port.T,TBouPul.iSam,$PRE.TBouPul.iSam,$whenCondition1,pulse.count,$PRE.pulse.count,pulse.T_start,$PRE.pulse.T_start,$whenCondition2) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (46): * Single equations (assignments): 45 * Array equations: 0 * Algorithm blocks: 1 * 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 0.0001351/0.6943, allocations: 156.5 kB / 1.231 GB, free: 7.34 MB / 0.9512 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 4.672e-05/0.6943, allocations: 31.8 kB / 1.231 GB, free: 7.309 MB / 0.9512 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 4.761e-05/0.6944, allocations: 25.72 kB / 1.231 GB, free: 7.281 MB / 0.9512 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.609e-06/0.6944, allocations: 4 kB / 1.231 GB, free: 7.277 MB / 0.9512 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.111e-06/0.6944, allocations: 7.875 kB / 1.231 GB, free: 7.27 MB / 0.9512 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.182e-06/0.6944, allocations: 3.984 kB / 1.231 GB, free: 7.266 MB / 0.9512 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.000249/0.6946, allocations: 269.4 kB / 1.231 GB, free: 6.953 MB / 0.9512 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.643e-06/0.6946, allocations: 4.375 kB / 1.231 GB, free: 6.949 MB / 0.9512 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001209/0.6948, allocations: 15.98 kB / 1.231 GB, free: 6.934 MB / 0.9512 GB Notification: Performance of postOpt tearingSystem (simulation): time 4.539e-06/0.6948, allocations: 4 kB / 1.231 GB, free: 6.93 MB / 0.9512 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.271e-05/0.6948, allocations: 11.98 kB / 1.231 GB, free: 6.918 MB / 0.9512 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.994e-06/0.6948, allocations: 3.938 kB / 1.231 GB, free: 6.914 MB / 0.9512 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.945e-06/0.6948, allocations: 7.938 kB / 1.231 GB, free: 6.906 MB / 0.9512 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0008291/0.6956, allocations: 414.4 kB / 1.231 GB, free: 6.477 MB / 0.9512 GB Notification: Performance of postOpt removeConstants (simulation): time 5.826e-05/0.6957, allocations: 108.9 kB / 1.231 GB, free: 6.352 MB / 0.9512 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 4.964e-05/0.6957, allocations: 12 kB / 1.231 GB, free: 6.34 MB / 0.9512 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001809/0.6959, allocations: 20.02 kB / 1.232 GB, free: 6.32 MB / 0.9512 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 6.923e-05/0.696, allocations: 23.91 kB / 1.232 GB, free: 6.297 MB / 0.9512 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.129e-05/0.696, allocations: 12 kB / 1.232 GB, free: 6.285 MB / 0.9512 GB Notification: Performance of sorting global known variables: time 0.0001358/0.6961, allocations: 174 kB / 1.232 GB, free: 6.113 MB / 0.9512 GB Notification: Performance of sort global known variables: time 1.01e-07/0.6961, allocations: 0 / 1.232 GB, free: 6.113 MB / 0.9512 GB Notification: Performance of remove unused functions: time 0.0003867/0.6965, allocations: 75.94 kB / 1.232 GB, free: 6.039 MB / 0.9512 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 3 * Number of states: 3 (TBouSte.U,TBouCon.U,TBouPul.U) * Number of discrete variables: 18 ($whenCondition4,TBouSte.QAve_flow,TBouSte.port.T,TBouSte.UOld,TBouSte.iSam,$whenCondition3,TBouCon.QAve_flow,TBouCon.port.T,TBouCon.UOld,TBouCon.iSam,$whenCondition2,$whenCondition1,TBouPul.QAve_flow,TBouPul.port.T,TBouPul.UOld,TBouPul.iSam,pulse.T_start,pulse.count) * Number of discrete states: 7 (TBouPul.iSam,TBouPul.UOld,pulse.count,TBouCon.iSam,TBouCon.UOld,TBouSte.iSam,TBouSte.UOld) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (23): * Single equations (assignments): 9 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 14 * 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 0.0003126/0.6968, allocations: 171.9 kB / 1.232 GB, free: 5.867 MB / 0.9512 GB Notification: Performance of simCode: created initialization part: time 0.0005774/0.6974, allocations: 283.5 kB / 1.232 GB, free: 5.578 MB / 0.9512 GB Notification: Performance of simCode: created event and clocks part: time 3.406e-06/0.6974, allocations: 4 kB / 1.232 GB, free: 5.574 MB / 0.9512 GB Notification: Performance of simCode: created simulation system equations: time 0.0002491/0.6977, allocations: 91.88 kB / 1.232 GB, free: 5.484 MB / 0.9512 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0003517/0.698, allocations: 68.86 kB / 1.232 GB, free: 5.422 MB / 0.9512 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001071/0.6991, allocations: 0.6201 MB / 1.233 GB, free: 4.77 MB / 0.9512 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0002576/0.6994, allocations: 0.7368 MB / 1.234 GB, free: 4.004 MB / 0.9512 GB Notification: Performance of simCode: alias equations: time 0.0001214/0.6995, allocations: 54.94 kB / 1.234 GB, free: 3.949 MB / 0.9512 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 4.599e-05/0.6995, allocations: 23.44 kB / 1.234 GB, free: 3.926 MB / 0.9512 GB Notification: Performance of SimCode: time 3.41e-07/0.6995, allocations: 0 / 1.234 GB, free: 3.926 MB / 0.9512 GB Notification: Performance of Templates: time 0.007454/0.707, allocations: 4.009 MB / 1.238 GB, free: 0 / 0.9512 GB make -j1 -f Buildings_11_Buildings.Fluid.Geothermal.Boreholes.BaseClasses.Examples.SingleUTubeBoundaryCondition.makefile (rm -f Buildings_11_Buildings.Fluid.Geothermal.Boreholes.BaseClasses.Examples.SingleUTubeBoundaryCondition.pipe ; mkfifo Buildings_11_Buildings.Fluid.Geothermal.Boreholes.BaseClasses.Examples.SingleUTubeBoundaryCondition.pipe ; head -c 1048576 < Buildings_11_Buildings.Fluid.Geothermal.Boreholes.BaseClasses.Examples.SingleUTubeBoundaryCondition.pipe >> ../files/Buildings_11_Buildings.Fluid.Geothermal.Boreholes.BaseClasses.Examples.SingleUTubeBoundaryCondition.sim & ./Buildings_11_Buildings.Fluid.Geothermal.Boreholes.BaseClasses.Examples.SingleUTubeBoundaryCondition -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS > Buildings_11_Buildings.Fluid.Geothermal.Boreholes.BaseClasses.Examples.SingleUTubeBoundaryCondition.pipe 2>&1) diffSimulationResults("Buildings_11_Buildings.Fluid.Geothermal.Boreholes.BaseClasses.Examples.SingleUTubeBoundaryCondition_res.mat","/mnt/ReferenceFiles/Buildings/csv/maint_11.x/Buildings_Fluid_Geothermal_Boreholes_BaseClasses_Examples_SingleUTubeBoundaryCondition.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_11_Buildings.Fluid.Geothermal.Boreholes.BaseClasses.Examples.SingleUTubeBoundaryCondition.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches