Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ModelicaTest_3.2.3_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGasFixedComposition.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 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 3.2.3+maint.om/package.mo", uses=false) Using package ModelicaTest with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 3.2.3+maint.om/package.mo) Using package Modelica with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+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(ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGasFixedComposition,fileNamePrefix="ModelicaTest_3_2_3_ModelicaTest_Media_TestsWithFluid_MediaTestModels_IdealGases_SimpleNaturalGasFixedComposition",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGasFixedComposition,fileNamePrefix="ModelicaTest_3_2_3_ModelicaTest_Media_TestsWithFluid_MediaTestModels_IdealGases_SimpleNaturalGasFixedComposition",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 0.001205/0.001205, allocations: 110.5 kB / 16.41 MB, free: 6.488 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001191/0.001191, allocations: 188.1 kB / 17.34 MB, free: 5.762 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.47/1.47, allocations: 205.1 MB / 223.2 MB, free: 12.24 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 3.2.3+maint.om/package.mo): time 0.221/0.221, allocations: 43.52 MB / 314.1 MB, free: 464 kB / 254.1 MB Notification: Modelica requested package Complex of version 3.2.3. Complex 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Modelica requested package ModelicaServices of version 3.2.3. ModelicaServices 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.002231/0.002231, allocations: 71.89 kB / 441.3 MB, free: 6.156 MB / 318.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1158/0.118, allocations: 57.79 MB / 499.1 MB, free: 12.3 MB / 382.1 MB Notification: Performance of NFInst.instantiate(ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGasFixedComposition): time 0.4675/0.5856, allocations: 183.2 MB / 0.6664 GB, free: 3.684 MB / 0.4981 GB Notification: Performance of NFInst.instExpressions: time 0.01023/0.5959, allocations: 6.962 MB / 0.6732 GB, free: 12.7 MB / 0.5137 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0008743/0.5968, allocations: 27.81 kB / 0.6732 GB, free: 12.67 MB / 0.5137 GB Notification: Performance of NFTyping.typeComponents: time 0.00141/0.5982, allocations: 429.6 kB / 0.6736 GB, free: 12.25 MB / 0.5137 GB Notification: Performance of NFTyping.typeBindings: time 0.005669/0.604, allocations: 2.006 MB / 0.6756 GB, free: 10.24 MB / 0.5137 GB Notification: Performance of NFTyping.typeClassSections: time 0.004657/0.6086, allocations: 1.672 MB / 0.6772 GB, free: 8.566 MB / 0.5137 GB Notification: Performance of NFFlatten.flatten: time 0.003264/0.6119, allocations: 2.107 MB / 0.6792 GB, free: 6.453 MB / 0.5137 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001192/0.6131, allocations: 0.5414 MB / 0.6798 GB, free: 5.914 MB / 0.5137 GB Notification: Performance of NFEvalConstants.evaluate: time 0.004563/0.6177, allocations: 1.885 MB / 0.6816 GB, free: 4.023 MB / 0.5137 GB Notification: Performance of NFSimplifyModel.simplify: time 0.003081/0.6208, allocations: 1.464 MB / 0.683 GB, free: 2.555 MB / 0.5137 GB Notification: Performance of NFPackage.collectConstants: time 0.0003165/0.6211, allocations: 76 kB / 0.6831 GB, free: 2.48 MB / 0.5137 GB Notification: Performance of NFFlatten.collectFunctions: time 0.003536/0.6247, allocations: 1.563 MB / 0.6846 GB, free: 0.9141 MB / 0.5137 GB Notification: Performance of NFScalarize.scalarize: time 0.0006185/0.6253, allocations: 450.8 kB / 0.6851 GB, free: 484 kB / 0.5137 GB Notification: Performance of NFVerifyModel.verify: time 0.001108/0.6264, allocations: 0.5524 MB / 0.6856 GB, free: 15.91 MB / 0.5294 GB Notification: Performance of NFConvertDAE.convert: time 0.004113/0.6306, allocations: 2.192 MB / 0.6877 GB, free: 13.72 MB / 0.5294 GB Notification: Performance of FrontEnd - DAE generated: time 1.888e-05/0.6306, allocations: 11.98 kB / 0.6878 GB, free: 13.71 MB / 0.5294 GB Notification: Performance of FrontEnd: time 1.373e-06/0.6306, allocations: 0 / 0.6878 GB, free: 13.71 MB / 0.5294 GB Notification: Performance of Transformations before backend: time 5.035e-05/0.6307, allocations: 0 / 0.6878 GB, free: 13.71 MB / 0.5294 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 192 * Number of variables: 192 Notification: Performance of Generate backend data structure: time 0.003413/0.6341, allocations: 1.436 MB / 0.6892 GB, free: 12.22 MB / 0.5294 GB Notification: Performance of prepare preOptimizeDAE: time 3.825e-05/0.6341, allocations: 16.03 kB / 0.6892 GB, free: 12.2 MB / 0.5294 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.00025/0.6344, allocations: 134.6 kB / 0.6893 GB, free: 12.06 MB / 0.5294 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001472/0.6359, allocations: 291.1 kB / 0.6896 GB, free: 11.78 MB / 0.5294 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.00116/0.637, allocations: 0.633 MB / 0.6902 GB, free: 11.1 MB / 0.5294 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001372/0.6372, allocations: 120.6 kB / 0.6903 GB, free: 10.97 MB / 0.5294 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001452/0.6373, allocations: 64 kB / 0.6904 GB, free: 10.91 MB / 0.5294 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002133/0.6395, allocations: 1.267 MB / 0.6916 GB, free: 9.574 MB / 0.5294 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.662e-05/0.6395, allocations: 0 / 0.6916 GB, free: 9.574 MB / 0.5294 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.000129/0.6397, allocations: 35.98 kB / 0.6916 GB, free: 9.539 MB / 0.5294 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001091/0.6398, allocations: 81.27 kB / 0.6917 GB, free: 9.461 MB / 0.5294 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001877/0.6417, allocations: 1.047 MB / 0.6928 GB, free: 8.41 MB / 0.5294 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 0.007941/0.6496, allocations: 4.981 MB / 0.6976 GB, free: 3.125 MB / 0.5294 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0005625/0.6502, allocations: 312.1 kB / 0.6979 GB, free: 2.816 MB / 0.5294 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002592/0.6505, allocations: 144.8 kB / 0.698 GB, free: 2.672 MB / 0.5294 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0001798/0.6507, allocations: 135.1 kB / 0.6982 GB, free: 2.52 MB / 0.5294 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.787e-05/0.6507, allocations: 46.55 kB / 0.6982 GB, free: 2.465 MB / 0.5294 GB Notification: Performance of pre-optimization done (n=28): time 1.833e-06/0.6507, allocations: 0 / 0.6982 GB, free: 2.465 MB / 0.5294 GB Notification: Performance of matching and sorting (n=33): time 0.006559/0.6573, allocations: 1.825 MB / 0.7 GB, free: 0.5508 MB / 0.5294 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001062/0.6574, allocations: 132.5 kB / 0.7001 GB, free: 400 kB / 0.5294 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001378/0.6588, allocations: 0.9428 MB / 0.7011 GB, free: 15.42 MB / 0.545 GB Notification: Performance of collectPreVariables (initialization): time 5.756e-05/0.6589, allocations: 41.7 kB / 0.7011 GB, free: 15.38 MB / 0.545 GB Notification: Performance of collectInitialEqns (initialization): time 0.0005184/0.6594, allocations: 0.5808 MB / 0.7017 GB, free: 14.79 MB / 0.545 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001412/0.6595, allocations: 138.9 kB / 0.7018 GB, free: 14.65 MB / 0.545 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.000314/0.6599, allocations: 214.8 kB / 0.702 GB, free: 14.44 MB / 0.545 GB Notification: Performance of setup shared object (initialization): time 0.0002441/0.6601, allocations: 402.7 kB / 0.7024 GB, free: 14.04 MB / 0.545 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0005071/0.6606, allocations: 270.5 kB / 0.7026 GB, free: 13.77 MB / 0.545 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0009833/0.6616, allocations: 0.8678 MB / 0.7035 GB, free: 12.62 MB / 0.545 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001546/0.6632, allocations: 1.176 MB / 0.7046 GB, free: 11.17 MB / 0.545 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.371e-05/0.6632, allocations: 4 kB / 0.7046 GB, free: 11.16 MB / 0.545 GB Notification: Performance of matching and sorting (n=130) (initialization): time 0.002231/0.6654, allocations: 1.244 MB / 0.7059 GB, free: 9.91 MB / 0.545 GB Notification: Performance of prepare postOptimizeDAE: time 2.781e-05/0.6655, allocations: 12 kB / 0.7059 GB, free: 9.898 MB / 0.545 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.681e-05/0.6655, allocations: 20 kB / 0.7059 GB, free: 9.879 MB / 0.545 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001267/0.6668, allocations: 288.8 kB / 0.7062 GB, free: 9.594 MB / 0.545 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000582/0.6674, allocations: 199.6 kB / 0.7063 GB, free: 9.398 MB / 0.545 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001255/0.6686, allocations: 0.923 MB / 0.7073 GB, free: 8.449 MB / 0.545 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0007648/0.6694, allocations: 43.98 kB / 0.7073 GB, free: 8.406 MB / 0.545 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001024/0.6695, allocations: 71.94 kB / 0.7074 GB, free: 8.336 MB / 0.545 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 90 * Number of states: 0 () * Number of discrete variables: 4 (volume.regularFlow[1],volume.regularFlow[2],volume.inFlow[2],volume.inFlow[1]) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (112): * Single equations (assignments): 111 * 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 {(2,17)} Notification: Performance of prepare postOptimizeDAE: time 0.0004728/0.67, allocations: 337.2 kB / 0.7077 GB, free: 7.996 MB / 0.545 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.000193/0.6702, allocations: 103.3 kB / 0.7078 GB, free: 7.895 MB / 0.545 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.000963/0.6712, allocations: 493.5 kB / 0.7083 GB, free: 7.398 MB / 0.545 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.075e-06/0.6712, allocations: 8.031 kB / 0.7083 GB, free: 7.391 MB / 0.545 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.501e-06/0.6712, allocations: 0 / 0.7083 GB, free: 7.391 MB / 0.545 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.993e-06/0.6712, allocations: 3.984 kB / 0.7083 GB, free: 7.387 MB / 0.545 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.00187/0.6731, allocations: 1.125 MB / 0.7094 GB, free: 6.199 MB / 0.545 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.965e-06/0.6731, allocations: 0 / 0.7094 GB, free: 6.199 MB / 0.545 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0009756/0.6741, allocations: 179.8 kB / 0.7095 GB, free: 6.023 MB / 0.545 GB Notification: Performance of postOpt tearingSystem (simulation): time 9.624e-05/0.6742, allocations: 24.84 kB / 0.7096 GB, free: 5.996 MB / 0.545 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.813e-05/0.6743, allocations: 11.94 kB / 0.7096 GB, free: 5.984 MB / 0.545 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.002396/0.6767, allocations: 2.881 MB / 0.7124 GB, free: 2.828 MB / 0.545 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.433e-06/0.6767, allocations: 0 / 0.7124 GB, free: 2.828 MB / 0.545 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001277/0.678, allocations: 0.7005 MB / 0.7131 GB, free: 2.105 MB / 0.545 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0003833/0.6784, allocations: 208.5 kB / 0.7133 GB, free: 1.883 MB / 0.545 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001658/0.6785, allocations: 4 kB / 0.7133 GB, free: 1.879 MB / 0.545 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0004568/0.679, allocations: 20.11 kB / 0.7133 GB, free: 1.859 MB / 0.545 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 8.732e-05/0.6791, allocations: 23.97 kB / 0.7133 GB, free: 1.836 MB / 0.545 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.099e-05/0.6792, allocations: 27.98 kB / 0.7133 GB, free: 1.809 MB / 0.545 GB Notification: Performance of sorting global known variables: time 0.0009326/0.6801, allocations: 0.6203 MB / 0.7139 GB, free: 1.176 MB / 0.545 GB Notification: Performance of sort global known variables: time 3.1e-07/0.6801, allocations: 0 / 0.7139 GB, free: 1.176 MB / 0.545 GB Notification: Performance of remove unused functions: time 0.001503/0.6816, allocations: 431.3 kB / 0.7144 GB, free: 0.7539 MB / 0.545 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 2 * Number of states: 2 (volume.medium.p,volume.medium.T) * 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 (33): * Single equations (assignments): 31 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 1 system {1} * Without analytic Jacobian (size): 0 systems Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(1,1,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.003606/0.6852, allocations: 1.898 MB / 0.7162 GB, free: 14.82 MB / 0.5606 GB Notification: Performance of simCode: created initialization part: time 0.001481/0.6867, allocations: 0.6736 MB / 0.7169 GB, free: 14.15 MB / 0.5606 GB Notification: Performance of simCode: created event and clocks part: time 6.893e-06/0.6868, allocations: 4 kB / 0.7169 GB, free: 14.15 MB / 0.5606 GB Notification: Performance of simCode: created simulation system equations: time 0.0009461/0.6877, allocations: 366.4 kB / 0.7172 GB, free: 13.78 MB / 0.5606 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002799/0.6905, allocations: 446.7 kB / 0.7176 GB, free: 13.35 MB / 0.5606 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01286/0.7034, allocations: 8.201 MB / 0.7257 GB, free: 4.457 MB / 0.5606 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.000753/0.7042, allocations: 1.028 MB / 0.7267 GB, free: 3.395 MB / 0.5606 GB Notification: Performance of simCode: alias equations: time 0.0009323/0.7051, allocations: 315.8 kB / 0.727 GB, free: 3.086 MB / 0.5606 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004477/0.7056, allocations: 311.3 kB / 0.7273 GB, free: 2.785 MB / 0.5606 GB Notification: Performance of SimCode: time 5.11e-07/0.7056, allocations: 4 kB / 0.7273 GB, free: 2.781 MB / 0.5606 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.08002/0.7856, allocations: 32.13 MB / 0.7586 GB, free: 2.57 MB / 0.5919 GB Notification: Performance of buildModelFMU: Generate platform static: time 18.18/18.96, allocations: 8.375 kB / 0.7586 GB, free: 2.559 MB / 0.5919 GB (rm -f ModelicaTest_3.2.3_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGasFixedComposition.pipe ; mkfifo ModelicaTest_3.2.3_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGasFixedComposition.pipe ; head -c 1048576 < ModelicaTest_3.2.3_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGasFixedComposition.pipe >> ../files/ModelicaTest_3.2.3_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGasFixedComposition.sim & python3 -m fmpy simulate --output-file ModelicaTest_3.2.3_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGasFixedComposition_res.csv --start-time 0 --stop-time 1.01 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.000404 ModelicaTest_3_2_3_ModelicaTest_Media_TestsWithFluid_MediaTestModels_IdealGases_SimpleNaturalGasFixedComposition.fmu > ModelicaTest_3.2.3_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGasFixedComposition.pipe 2>&1) diffSimulationResults("ModelicaTest_3.2.3_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGasFixedComposition_res.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v3.2.3+build.4/ModelicaTest/Media/TestsWithFluid/MediaTestModels/IdealGases/SimpleNaturalGasFixedComposition/SimpleNaturalGasFixedComposition.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/ModelicaTest_3.2.3_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGasFixedComposition.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches