Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_10_Buildings.Fluid.MixingVolumes.Validation.MixingVolume.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 10.1.1-maint.10.0.x/package.mo", uses=false) Using package Buildings with version 10.1.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.1.1-maint.10.0.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: "" <> buildModelFMU(Buildings.Fluid.MixingVolumes.Validation.MixingVolume,fileNamePrefix="Buildings_10_Buildings_Fluid_MixingVolumes_Validation_MixingVolume",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Fluid.MixingVolumes.Validation.MixingVolume,fileNamePrefix="Buildings_10_Buildings_Fluid_MixingVolumes_Validation_MixingVolume",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001508/0.001508, allocations: 108 kB / 15.6 MB, free: 132 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001721/0.001721, allocations: 192.6 kB / 16.53 MB, free: 6.391 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.34/1.34, allocations: 222.9 MB / 240.2 MB, free: 4.422 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.1.1-maint.10.0.x/package.mo): time 2.506/2.506, allocations: 437.1 MB / 0.7104 GB, free: 5.027 MB / 0.5606 GB Notification: Performance of FrontEnd - loaded program: time 0.001193/0.001193, allocations: 67.89 kB / 0.8693 GB, free: 4.535 MB / 0.7169 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.5602/0.5614, allocations: 151.6 MB / 1.017 GB, free: 2.453 MB / 0.7637 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.MixingVolumes.Validation.MixingVolume): time 0.6963/1.258, allocations: 242.4 MB / 1.254 GB, free: 2.051 MB / 0.9981 GB Notification: Performance of NFInst.instExpressions: time 0.01727/1.275, allocations: 15.89 MB / 1.27 GB, free: 1.992 MB / 0.9981 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002275/1.277, allocations: 76.03 kB / 1.27 GB, free: 1.992 MB / 0.9981 GB Notification: Performance of NFTyping.typeComponents: time 0.002447/1.28, allocations: 1.182 MB / 1.271 GB, free: 1.973 MB / 0.9981 GB Notification: Performance of NFTyping.typeBindings: time 0.009421/1.289, allocations: 3.82 MB / 1.275 GB, free: 1.82 MB / 0.9981 GB Notification: Performance of NFTyping.typeClassSections: time 0.004809/1.294, allocations: 1.796 MB / 1.276 GB, free: 1.781 MB / 0.9981 GB Notification: Performance of NFFlatten.flatten: time 0.007033/1.301, allocations: 5.259 MB / 1.281 GB, free: 1.77 MB / 0.9981 GB Notification: Performance of NFFlatten.resolveConnections: time 0.00238/1.304, allocations: 1.671 MB / 1.283 GB, free: 1.605 MB / 0.9981 GB Notification: Performance of NFEvalConstants.evaluate: time 0.004874/1.308, allocations: 2.595 MB / 1.286 GB, free: 1.582 MB / 0.9981 GB Notification: Performance of NFSimplifyModel.simplify: time 0.003107/1.312, allocations: 1.712 MB / 1.287 GB, free: 1.574 MB / 0.9981 GB Notification: Performance of NFPackage.collectConstants: time 0.000333/1.312, allocations: 175 kB / 1.288 GB, free: 1.574 MB / 0.9981 GB Notification: Performance of NFFlatten.collectFunctions: time 0.004929/1.317, allocations: 2.708 MB / 1.29 GB, free: 1.543 MB / 0.9981 GB Notification: Performance of NFScalarize.scalarize: time 0.0007209/1.318, allocations: 0.7711 MB / 1.291 GB, free: 1.543 MB / 0.9981 GB Notification: Performance of NFVerifyModel.verify: time 0.001376/1.319, allocations: 1.148 MB / 1.292 GB, free: 1.543 MB / 0.9981 GB Notification: Performance of NFConvertDAE.convert: time 0.004082/1.323, allocations: 3.517 MB / 1.295 GB, free: 1.125 MB / 0.9981 GB Notification: Performance of FrontEnd - DAE generated: time 3.086e-06/1.323, allocations: 1.062 kB / 1.295 GB, free: 1.125 MB / 0.9981 GB Notification: Performance of FrontEnd: time 2.074e-06/1.323, allocations: 2.25 kB / 1.295 GB, free: 1.125 MB / 0.9981 GB Notification: Performance of Transformations before backend: time 2.426e-05/1.323, allocations: 3.938 kB / 1.295 GB, free: 1.121 MB / 0.9981 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 363 * Number of variables: 363 Notification: Performance of Generate backend data structure: time 0.0034/1.327, allocations: 2.504 MB / 1.298 GB, free: 15.93 MB / 1.014 GB Notification: Performance of prepare preOptimizeDAE: time 3.202e-05/1.327, allocations: 8.438 kB / 1.298 GB, free: 15.93 MB / 1.014 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0002062/1.327, allocations: 217 kB / 1.298 GB, free: 15.89 MB / 1.014 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002552/1.329, allocations: 0.4973 MB / 1.299 GB, free: 15.78 MB / 1.014 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001611/1.331, allocations: 1.278 MB / 1.3 GB, free: 15.33 MB / 1.014 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.000121/1.331, allocations: 177.4 kB / 1.3 GB, free: 15.27 MB / 1.014 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.000171/1.331, allocations: 151.9 kB / 1.3 GB, free: 15.27 MB / 1.014 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002254/1.334, allocations: 1.741 MB / 1.302 GB, free: 15.04 MB / 1.014 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.162e-05/1.334, allocations: 6.375 kB / 1.302 GB, free: 15.04 MB / 1.014 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001208/1.334, allocations: 63.53 kB / 1.302 GB, free: 15.04 MB / 1.014 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.433e-05/1.334, allocations: 55.73 kB / 1.302 GB, free: 15.04 MB / 1.014 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002015/1.336, allocations: 1.375 MB / 1.303 GB, free: 15.02 MB / 1.014 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 0.007751/1.344, allocations: 8.257 MB / 1.311 GB, free: 10.19 MB / 1.014 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001334/1.345, allocations: 0.9 MB / 1.312 GB, free: 10.16 MB / 1.014 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0007721/1.346, allocations: 0.5329 MB / 1.313 GB, free: 10.14 MB / 1.014 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0005456/1.346, allocations: 323.4 kB / 1.313 GB, free: 9.863 MB / 1.014 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.871e-05/1.346, allocations: 46.78 kB / 1.313 GB, free: 9.824 MB / 1.014 GB Notification: Performance of pre-optimization done (n=96): time 2.335e-06/1.346, allocations: 0 / 1.313 GB, free: 9.824 MB / 1.014 GB Notification: Performance of matching and sorting (n=102): time 0.005805/1.352, allocations: 3.127 MB / 1.316 GB, free: 9.195 MB / 1.014 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.456e-05/1.352, allocations: 61.44 kB / 1.316 GB, free: 9.133 MB / 1.014 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001314/1.353, allocations: 1.267 MB / 1.317 GB, free: 8.961 MB / 1.014 GB Notification: Performance of collectPreVariables (initialization): time 7.86e-05/1.354, allocations: 48.48 kB / 1.318 GB, free: 8.93 MB / 1.014 GB Notification: Performance of collectInitialEqns (initialization): time 0.0004559/1.354, allocations: 0.8116 MB / 1.318 GB, free: 8.613 MB / 1.014 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002593/1.354, allocations: 365 kB / 1.319 GB, free: 8.383 MB / 1.014 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002841/1.355, allocations: 224 kB / 1.319 GB, free: 8.355 MB / 1.014 GB Notification: Performance of setup shared object (initialization): time 0.0001047/1.355, allocations: 355.2 kB / 1.319 GB, free: 8.051 MB / 1.014 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0007108/1.355, allocations: 444.7 kB / 1.32 GB, free: 8.039 MB / 1.014 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0009276/1.356, allocations: 0.8236 MB / 1.32 GB, free: 7.605 MB / 1.014 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001662/1.358, allocations: 1.252 MB / 1.322 GB, free: 7.277 MB / 1.014 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 8.475e-06/1.358, allocations: 2.656 kB / 1.322 GB, free: 7.277 MB / 1.014 GB Notification: Performance of matching and sorting (n=150) (initialization): time 0.002168/1.36, allocations: 1.411 MB / 1.323 GB, free: 7.148 MB / 1.014 GB Notification: Performance of prepare postOptimizeDAE: time 1.699e-05/1.36, allocations: 8.688 kB / 1.323 GB, free: 7.148 MB / 1.014 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.27e-05/1.36, allocations: 9.828 kB / 1.323 GB, free: 7.148 MB / 1.014 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.458e-05/1.36, allocations: 15.62 kB / 1.323 GB, free: 7.148 MB / 1.014 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0009979/1.361, allocations: 280.5 kB / 1.323 GB, free: 7.145 MB / 1.014 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.277e-05/1.361, allocations: 21.58 kB / 1.323 GB, free: 7.145 MB / 1.014 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00123/1.363, allocations: 67.03 kB / 1.323 GB, free: 7.145 MB / 1.014 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 9.291e-05/1.363, allocations: 50.25 kB / 1.324 GB, free: 7.145 MB / 1.014 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001127/1.364, allocations: 0.7747 MB / 1.324 GB, free: 7.055 MB / 1.014 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0009062/1.365, allocations: 0.8112 MB / 1.325 GB, free: 6.613 MB / 1.014 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001605/1.366, allocations: 1.239 MB / 1.326 GB, free: 6.246 MB / 1.014 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 6.693e-06/1.366, allocations: 6.219 kB / 1.326 GB, free: 6.242 MB / 1.014 GB Notification: Performance of matching and sorting (n=150) (initialization_lambda0): time 0.002044/1.368, allocations: 1.393 MB / 1.328 GB, free: 6.102 MB / 1.014 GB Notification: Performance of prepare postOptimizeDAE: time 1.46e-05/1.368, allocations: 10.62 kB / 1.328 GB, free: 6.098 MB / 1.014 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.102e-05/1.368, allocations: 14.94 kB / 1.328 GB, free: 6.094 MB / 1.014 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.454e-05/1.368, allocations: 14.91 kB / 1.328 GB, free: 6.094 MB / 1.014 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0009753/1.369, allocations: 272.5 kB / 1.328 GB, free: 6.094 MB / 1.014 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.118e-05/1.369, allocations: 18.91 kB / 1.328 GB, free: 6.094 MB / 1.014 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001204/1.371, allocations: 79.77 kB / 1.328 GB, free: 6.09 MB / 1.014 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.989e-05/1.371, allocations: 46.56 kB / 1.328 GB, free: 6.09 MB / 1.014 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 41 * Number of states: 0 () * Number of discrete variables: 4 (vol.regularFlow[1],vol.regularFlow[2],vol.inFlow[2],vol.inFlow[1]) * 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 0.0002835/1.371, allocations: 273.1 kB / 1.328 GB, free: 5.895 MB / 1.014 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002525/1.371, allocations: 165.6 kB / 1.328 GB, free: 5.809 MB / 1.014 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001878/1.373, allocations: 1.165 MB / 1.33 GB, free: 5.707 MB / 1.014 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.155e-06/1.373, allocations: 10.78 kB / 1.33 GB, free: 5.707 MB / 1.014 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.051e-06/1.373, allocations: 0 / 1.33 GB, free: 5.707 MB / 1.014 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.001438/1.375, allocations: 1.075 MB / 1.331 GB, free: 5.434 MB / 1.014 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.00404/1.379, allocations: 2.789 MB / 1.333 GB, free: 5.031 MB / 1.014 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.1e-06/1.379, allocations: 2.188 kB / 1.333 GB, free: 5.031 MB / 1.014 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001066/1.38, allocations: 243.6 kB / 1.334 GB, free: 5.031 MB / 1.014 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.024e-05/1.38, allocations: 9.25 kB / 1.334 GB, free: 5.027 MB / 1.014 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 6.599e-05/1.38, allocations: 24.95 kB / 1.334 GB, free: 5.027 MB / 1.014 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 8.937e-06/1.38, allocations: 14 kB / 1.334 GB, free: 5.023 MB / 1.014 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.314e-06/1.38, allocations: 3.594 kB / 1.334 GB, free: 5.023 MB / 1.014 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.00244/1.382, allocations: 1.761 MB / 1.335 GB, free: 4.707 MB / 1.014 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0005448/1.383, allocations: 334.6 kB / 1.336 GB, free: 4.531 MB / 1.014 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002267/1.383, allocations: 26.48 kB / 1.336 GB, free: 4.527 MB / 1.014 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001008/1.384, allocations: 62.59 kB / 1.336 GB, free: 4.523 MB / 1.014 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001191/1.384, allocations: 69.03 kB / 1.336 GB, free: 4.52 MB / 1.014 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 6.502e-05/1.384, allocations: 37.58 kB / 1.336 GB, free: 4.52 MB / 1.014 GB Notification: Performance of sorting global known variables: time 0.001042/1.385, allocations: 0.8454 MB / 1.337 GB, free: 4.406 MB / 1.014 GB Notification: Performance of sort global known variables: time 1.8e-07/1.385, allocations: 0 / 1.337 GB, free: 4.406 MB / 1.014 GB Notification: Performance of remove unused functions: time 0.001844/1.387, allocations: 0.7725 MB / 1.337 GB, free: 4.395 MB / 1.014 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 8 * Number of states: 9 (vol1.dynBal.medium.Xi[1],vol1.dynBal.U,vol1.dynBal.m,vol.medium.Xi[1],vol.medium.T,vol.m,vol2.dynBal.medium.Xi[1],vol2.dynBal.U,vol2.dynBal.m) * 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 (102): * Single equations (assignments): 102 * 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 Backend phase and start with SimCode phase: time 0.003053/1.39, allocations: 2.492 MB / 1.34 GB, free: 3.512 MB / 1.014 GB Notification: Performance of simCode: created initialization part: time 0.003317/1.394, allocations: 2.002 MB / 1.342 GB, free: 3.465 MB / 1.014 GB Notification: Performance of simCode: created event and clocks part: time 4.028e-06/1.394, allocations: 2.125 kB / 1.342 GB, free: 3.465 MB / 1.014 GB Notification: Performance of simCode: created simulation system equations: time 0.0007178/1.394, allocations: 0.5196 MB / 1.342 GB, free: 3.461 MB / 1.014 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003437/1.398, allocations: 0.9068 MB / 1.343 GB, free: 3.309 MB / 1.014 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01599/1.414, allocations: 13.1 MB / 1.356 GB, free: 11.83 MB / 1.029 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0009413/1.415, allocations: 1.437 MB / 1.357 GB, free: 11.03 MB / 1.029 GB Notification: Performance of simCode: alias equations: time 0.001919/1.417, allocations: 0.5589 MB / 1.358 GB, free: 10.93 MB / 1.029 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0008107/1.418, allocations: 0.6873 MB / 1.359 GB, free: 10.4 MB / 1.029 GB Notification: Performance of SimCode: time 6.71e-07/1.418, allocations: 0 / 1.359 GB, free: 10.4 MB / 1.029 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.4727/1.89, allocations: 44.64 MB / 1.402 GB, free: 2.16 MB / 1.061 GB Notification: Performance of buildModelFMU: Generate platform static: time 8.412/10.3, allocations: 8.047 kB / 1.402 GB, free: 2.152 MB / 1.061 GB (rm -f Buildings_10_Buildings.Fluid.MixingVolumes.Validation.MixingVolume.pipe ; mkfifo Buildings_10_Buildings.Fluid.MixingVolumes.Validation.MixingVolume.pipe ; head -c 1048576 < Buildings_10_Buildings.Fluid.MixingVolumes.Validation.MixingVolume.pipe >> ../files/Buildings_10_Buildings.Fluid.MixingVolumes.Validation.MixingVolume.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=Buildings_10_Buildings.Fluid.MixingVolumes.Validation.MixingVolume_res.mat --tempDir=temp_Buildings_10_Buildings_Fluid_MixingVolumes_Validation_MixingVolume_fmu --startTime=0 --stopTime=2 --timeout=50 --tolerance=1e-09 Buildings_10_Buildings_Fluid_MixingVolumes_Validation_MixingVolume.fmu > Buildings_10_Buildings.Fluid.MixingVolumes.Validation.MixingVolume.pipe 2>&1) diffSimulationResults("Buildings_10_Buildings.Fluid.MixingVolumes.Validation.MixingVolume_res.mat","/mnt/ReferenceFiles/Buildings/csv/maint_10.0.x/Buildings_Fluid_MixingVolumes_Validation_MixingVolume.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_10_Buildings.Fluid.MixingVolumes.Validation.MixingVolume.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches