Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.Fluid.FixedResistances.Validation.PressureDropsSeries.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 11.0.1-master/package.mo", uses=false) Using package Buildings with version 11.0.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.0.1-master/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.FixedResistances.Validation.PressureDropsSeries,fileNamePrefix="Buildings_latest_Buildings_Fluid_FixedResistances_Validation_PressureDropsSeries",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Fluid.FixedResistances.Validation.PressureDropsSeries,fileNamePrefix="Buildings_latest_Buildings_Fluid_FixedResistances_Validation_PressureDropsSeries",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 0.007724/0.007724, allocations: 99.64 kB / 15.73 MB, free: 6.023 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.00173/0.00173, allocations: 187.2 kB / 16.67 MB, free: 5.957 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.358/1.358, allocations: 222.9 MB / 240.4 MB, free: 4.168 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.0.1-master/package.mo): time 2.728/2.728, allocations: 461.9 MB / 0.7348 GB, free: 14.6 MB / 0.5919 GB Notification: Performance of FrontEnd - loaded program: time 0.001344/0.001344, allocations: 64.12 kB / 1.054 GB, free: 7.676 MB / 0.8106 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3329/0.3343, allocations: 157.4 MB / 1.207 GB, free: 10.17 MB / 0.9669 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.FixedResistances.Validation.PressureDropsSeries): time 0.8771/1.211, allocations: 161.5 MB / 1.365 GB, free: 5.273 MB / 1.061 GB Notification: Performance of NFInst.instExpressions: time 0.003197/1.215, allocations: 1.719 MB / 1.367 GB, free: 4.074 MB / 1.061 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0003753/1.215, allocations: 14.81 kB / 1.367 GB, free: 4.066 MB / 1.061 GB Notification: Performance of NFTyping.typeComponents: time 0.000605/1.216, allocations: 153.6 kB / 1.367 GB, free: 3.973 MB / 1.061 GB Notification: Performance of NFTyping.typeBindings: time 0.001451/1.217, allocations: 0.5164 MB / 1.367 GB, free: 3.699 MB / 1.061 GB Notification: Performance of NFTyping.typeClassSections: time 0.001221/1.218, allocations: 421.5 kB / 1.368 GB, free: 3.508 MB / 1.061 GB Notification: Performance of NFFlatten.flatten: time 0.0026/1.221, allocations: 2.466 MB / 1.37 GB, free: 2.43 MB / 1.061 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001251/1.222, allocations: 0.9234 MB / 1.371 GB, free: 2.078 MB / 1.061 GB Notification: Performance of NFEvalConstants.evaluate: time 0.001805/1.224, allocations: 0.9481 MB / 1.372 GB, free: 1.691 MB / 1.061 GB Notification: Performance of NFSimplifyModel.simplify: time 0.000952/1.225, allocations: 0.7057 MB / 1.373 GB, free: 1.387 MB / 1.061 GB Notification: Performance of NFPackage.collectConstants: time 0.0001073/1.225, allocations: 56.75 kB / 1.373 GB, free: 1.387 MB / 1.061 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001688/1.227, allocations: 0.746 MB / 1.373 GB, free: 1.137 MB / 1.061 GB Notification: Performance of NFScalarize.scalarize: time 0.0003574/1.227, allocations: 305.5 kB / 1.374 GB, free: 1.012 MB / 1.061 GB Notification: Performance of NFVerifyModel.verify: time 0.000698/1.228, allocations: 0.541 MB / 1.374 GB, free: 0.707 MB / 1.061 GB Notification: Performance of NFConvertDAE.convert: time 0.001981/1.23, allocations: 1.41 MB / 1.376 GB, free: 15.91 MB / 1.076 GB Notification: Performance of FrontEnd - DAE generated: time 5.991e-06/1.23, allocations: 1 kB / 1.376 GB, free: 15.91 MB / 1.076 GB Notification: Performance of FrontEnd: time 1.593e-06/1.23, allocations: 0 / 1.376 GB, free: 15.91 MB / 1.076 GB Notification: Performance of Transformations before backend: time 1.999e-05/1.23, allocations: 0 / 1.376 GB, free: 15.91 MB / 1.076 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 122 * Number of variables: 122 Notification: Performance of Generate backend data structure: time 0.002488/1.233, allocations: 1.4 MB / 1.377 GB, free: 14.84 MB / 1.076 GB Notification: Performance of prepare preOptimizeDAE: time 5.163e-05/1.233, allocations: 10.06 kB / 1.377 GB, free: 14.84 MB / 1.076 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001113/1.233, allocations: 90.08 kB / 1.377 GB, free: 14.77 MB / 1.076 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0009136/1.234, allocations: 187.1 kB / 1.377 GB, free: 14.68 MB / 1.076 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001496/1.235, allocations: 0.8469 MB / 1.378 GB, free: 14.07 MB / 1.076 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 7.059e-05/1.235, allocations: 42.12 kB / 1.378 GB, free: 14.05 MB / 1.076 GB Notification: Performance of preOpt expandDerOperator (simulation): time 8.986e-05/1.235, allocations: 55.62 kB / 1.378 GB, free: 14.04 MB / 1.076 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001164/1.237, allocations: 0.6931 MB / 1.379 GB, free: 13.63 MB / 1.076 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.438e-05/1.237, allocations: 0 / 1.379 GB, free: 13.63 MB / 1.076 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 5.373e-05/1.237, allocations: 20.53 kB / 1.379 GB, free: 13.62 MB / 1.076 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.965e-05/1.237, allocations: 11.88 kB / 1.379 GB, free: 13.62 MB / 1.076 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0009968/1.238, allocations: 0.5191 MB / 1.379 GB, free: 13.37 MB / 1.076 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 0.00392/1.242, allocations: 3.249 MB / 1.383 GB, free: 10.42 MB / 1.076 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0006222/1.242, allocations: 393.3 kB / 1.383 GB, free: 10.22 MB / 1.076 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0003786/1.243, allocations: 239.1 kB / 1.383 GB, free: 10.11 MB / 1.076 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0003286/1.243, allocations: 196.2 kB / 1.383 GB, free: 9.902 MB / 1.076 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.068e-05/1.243, allocations: 31.81 kB / 1.383 GB, free: 9.863 MB / 1.076 GB Notification: Performance of pre-optimization done (n=28): time 1.593e-06/1.243, allocations: 0 / 1.383 GB, free: 9.863 MB / 1.076 GB Notification: Performance of matching and sorting (n=28): time 0.005291/1.248, allocations: 1.48 MB / 1.385 GB, free: 9.031 MB / 1.076 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.942e-05/1.248, allocations: 53.5 kB / 1.385 GB, free: 8.969 MB / 1.076 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001659/1.25, allocations: 1.074 MB / 1.386 GB, free: 8.395 MB / 1.076 GB Notification: Performance of collectPreVariables (initialization): time 5.903e-05/1.25, allocations: 33.67 kB / 1.386 GB, free: 8.359 MB / 1.076 GB Notification: Performance of collectInitialEqns (initialization): time 0.0004306/1.251, allocations: 443.7 kB / 1.386 GB, free: 7.984 MB / 1.076 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001053/1.251, allocations: 95.28 kB / 1.387 GB, free: 7.902 MB / 1.076 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001411/1.251, allocations: 79.91 kB / 1.387 GB, free: 7.852 MB / 1.076 GB Notification: Performance of setup shared object (initialization): time 0.0001479/1.251, allocations: 326 kB / 1.387 GB, free: 7.531 MB / 1.076 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003123/1.251, allocations: 164.3 kB / 1.387 GB, free: 7.445 MB / 1.076 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004941/1.252, allocations: 359.7 kB / 1.387 GB, free: 7.141 MB / 1.076 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0006698/1.252, allocations: 391 kB / 1.388 GB, free: 6.93 MB / 1.076 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.216e-06/1.252, allocations: 0 / 1.388 GB, free: 6.93 MB / 1.076 GB Notification: Performance of matching and sorting (n=28) (initialization): time 0.002152/1.255, allocations: 0.8018 MB / 1.389 GB, free: 6.492 MB / 1.076 GB Notification: Performance of prepare postOptimizeDAE: time 2.287e-05/1.255, allocations: 9.359 kB / 1.389 GB, free: 6.488 MB / 1.076 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.354e-06/1.255, allocations: 1.031 kB / 1.389 GB, free: 6.488 MB / 1.076 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001583/1.256, allocations: 361.9 kB / 1.389 GB, free: 6.316 MB / 1.076 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001506/1.256, allocations: 19.11 kB / 1.389 GB, free: 6.312 MB / 1.076 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.00132/1.258, allocations: 1.002 MB / 1.39 GB, free: 5.539 MB / 1.076 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0007133/1.258, allocations: 51.28 kB / 1.39 GB, free: 5.508 MB / 1.076 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.089e-05/1.259, allocations: 17.02 kB / 1.39 GB, free: 5.5 MB / 1.076 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0007856/1.259, allocations: 450 kB / 1.39 GB, free: 5.238 MB / 1.076 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0004104/1.26, allocations: 310.2 kB / 1.391 GB, free: 4.961 MB / 1.076 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0004427/1.26, allocations: 308.1 kB / 1.391 GB, free: 4.793 MB / 1.076 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.743e-06/1.26, allocations: 0 / 1.391 GB, free: 4.793 MB / 1.076 GB Notification: Performance of matching and sorting (n=28) (initialization_lambda0): time 0.001204/1.261, allocations: 0.6023 MB / 1.392 GB, free: 4.461 MB / 1.076 GB Notification: Performance of prepare postOptimizeDAE: time 1.151e-05/1.261, allocations: 5.594 kB / 1.392 GB, free: 4.461 MB / 1.076 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.615e-06/1.261, allocations: 0 / 1.392 GB, free: 4.461 MB / 1.076 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0005219/1.262, allocations: 207.5 kB / 1.392 GB, free: 4.363 MB / 1.076 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001028/1.262, allocations: 19.92 kB / 1.392 GB, free: 4.359 MB / 1.076 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003961/1.266, allocations: 3.301 MB / 1.395 GB, free: 1.734 MB / 1.076 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0006704/1.267, allocations: 50.25 kB / 1.395 GB, free: 1.707 MB / 1.076 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.687e-05/1.267, allocations: 6.875 kB / 1.395 GB, free: 1.707 MB / 1.076 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 4 * 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 initialization (9): * Single equations (assignments): 8 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,19)} Notification: Performance of prepare postOptimizeDAE: time 0.0001977/1.267, allocations: 196.5 kB / 1.395 GB, free: 1.516 MB / 1.076 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.000169/1.267, allocations: 95.44 kB / 1.395 GB, free: 1.465 MB / 1.076 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001365/1.269, allocations: 0.7063 MB / 1.396 GB, free: 1.062 MB / 1.076 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.66e-06/1.269, allocations: 3.438 kB / 1.396 GB, free: 1.062 MB / 1.076 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.414e-06/1.269, allocations: 1.5 kB / 1.396 GB, free: 1.062 MB / 1.076 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.898e-06/1.269, allocations: 4 kB / 1.396 GB, free: 1.059 MB / 1.076 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002299/1.271, allocations: 1.513 MB / 1.398 GB, free: 36 kB / 1.076 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.308e-06/1.271, allocations: 2.438 kB / 1.398 GB, free: 36 kB / 1.076 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 9.475e-05/1.271, allocations: 21.14 kB / 1.398 GB, free: 28 kB / 1.076 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.000424/1.271, allocations: 224.2 kB / 1.398 GB, free: 15.92 MB / 1.092 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.135e-05/1.271, allocations: 2.781 kB / 1.398 GB, free: 15.92 MB / 1.092 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0008405/1.272, allocations: 0.9801 MB / 1.399 GB, free: 15.16 MB / 1.092 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 6.252e-06/1.272, allocations: 10.31 kB / 1.399 GB, free: 15.15 MB / 1.092 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001094/1.273, allocations: 0.7973 MB / 1.4 GB, free: 14.62 MB / 1.092 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0002961/1.274, allocations: 219.8 kB / 1.4 GB, free: 14.44 MB / 1.092 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 9.412e-05/1.274, allocations: 4.969 kB / 1.4 GB, free: 14.44 MB / 1.092 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003398/1.274, allocations: 18.33 kB / 1.4 GB, free: 14.43 MB / 1.092 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 6.487e-05/1.274, allocations: 20 kB / 1.4 GB, free: 14.42 MB / 1.092 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.512e-05/1.274, allocations: 14.81 kB / 1.4 GB, free: 14.41 MB / 1.092 GB Notification: Performance of sorting global known variables: time 0.0008836/1.275, allocations: 0.7715 MB / 1.401 GB, free: 13.98 MB / 1.092 GB Notification: Performance of sort global known variables: time 1.643e-06/1.275, allocations: 4 kB / 1.401 GB, free: 13.98 MB / 1.092 GB Notification: Performance of remove unused functions: time 0.001064/1.276, allocations: 405.3 kB / 1.401 GB, free: 13.92 MB / 1.092 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 8 * 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 (9): * Single equations (assignments): 8 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,19)} Notification: Performance of Backend phase and start with SimCode phase: time 0.001542/1.278, allocations: 1.323 MB / 1.402 GB, free: 12.89 MB / 1.092 GB Notification: Performance of simCode: created initialization part: time 0.001422/1.279, allocations: 0.7587 MB / 1.403 GB, free: 12.45 MB / 1.092 GB Notification: Performance of simCode: created event and clocks part: time 3.236e-06/1.279, allocations: 0 / 1.403 GB, free: 12.45 MB / 1.092 GB Notification: Performance of simCode: created simulation system equations: time 0.0003931/1.28, allocations: 206.9 kB / 1.403 GB, free: 12.36 MB / 1.092 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001914/1.282, allocations: 485.7 kB / 1.404 GB, free: 12.11 MB / 1.092 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01361/1.295, allocations: 8.151 MB / 1.412 GB, free: 4.641 MB / 1.092 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0008311/1.296, allocations: 1.18 MB / 1.413 GB, free: 3.434 MB / 1.092 GB Notification: Performance of simCode: alias equations: time 0.0007183/1.297, allocations: 207.3 kB / 1.413 GB, free: 3.227 MB / 1.092 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004053/1.297, allocations: 307.3 kB / 1.413 GB, free: 2.926 MB / 1.092 GB Notification: Performance of SimCode: time 2.214e-06/1.297, allocations: 0 / 1.413 GB, free: 2.926 MB / 1.092 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.05656/1.354, allocations: 29 MB / 1.442 GB, free: 6.359 MB / 1.123 GB Notification: Performance of buildModelFMU: Generate platform static: time 13.89/15.25, allocations: 7.125 kB / 1.442 GB, free: 6.355 MB / 1.123 GB (rm -f Buildings_latest_Buildings.Fluid.FixedResistances.Validation.PressureDropsSeries.pipe ; mkfifo Buildings_latest_Buildings.Fluid.FixedResistances.Validation.PressureDropsSeries.pipe ; head -c 1048576 < Buildings_latest_Buildings.Fluid.FixedResistances.Validation.PressureDropsSeries.pipe >> ../files/Buildings_latest_Buildings.Fluid.FixedResistances.Validation.PressureDropsSeries.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=Buildings_latest_Buildings.Fluid.FixedResistances.Validation.PressureDropsSeries_res.mat --tempDir=temp_Buildings_latest_Buildings_Fluid_FixedResistances_Validation_PressureDropsSeries_fmu --startTime=0 --stopTime=1 --timeout=50 --tolerance=1e-06 Buildings_latest_Buildings_Fluid_FixedResistances_Validation_PressureDropsSeries.fmu > Buildings_latest_Buildings.Fluid.FixedResistances.Validation.PressureDropsSeries.pipe 2>&1) diffSimulationResults("Buildings_latest_Buildings.Fluid.FixedResistances.Validation.PressureDropsSeries_res.mat","/mnt/ReferenceFiles/Buildings/csv/master/Buildings_Fluid_FixedResistances_Validation_PressureDropsSeries.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_latest_Buildings.Fluid.FixedResistances.Validation.PressureDropsSeries.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches