Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_10_Buildings.Fluid.Movers.Validation.FlowControlled_m_flow.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.Movers.Validation.FlowControlled_m_flow,fileNamePrefix="Buildings_10_Buildings_Fluid_Movers_Validation_FlowControlled_m_flow",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Fluid.Movers.Validation.FlowControlled_m_flow,fileNamePrefix="Buildings_10_Buildings_Fluid_Movers_Validation_FlowControlled_m_flow",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 0.008859/0.008859, allocations: 100.6 kB / 15.73 MB, free: 6.012 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001985/0.001985, allocations: 189.9 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 1.487/1.487, allocations: 222.9 MB / 240.4 MB, free: 15.09 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.1.1-maint.10.0.x/package.mo): time 2.453/2.453, allocations: 437.1 MB / 0.7105 GB, free: 4.348 MB / 0.5762 GB Notification: Performance of FrontEnd - loaded program: time 0.001224/0.001224, allocations: 67.89 kB / 1.018 GB, free: 9.879 MB / 0.795 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.7811/0.7823, allocations: 151.6 MB / 1.166 GB, free: 3.77 MB / 0.8887 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Movers.Validation.FlowControlled_m_flow): time 0.3158/1.098, allocations: 325.1 MB / 1.484 GB, free: 13.51 MB / 1.217 GB Notification: Performance of NFInst.instExpressions: time 0.02833/1.127, allocations: 22.29 MB / 1.505 GB, free: 7.156 MB / 1.232 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.00304/1.13, allocations: 95.5 kB / 1.505 GB, free: 7.062 MB / 1.232 GB Notification: Performance of NFTyping.typeComponents: time 0.00581/1.135, allocations: 2.392 MB / 1.508 GB, free: 4.66 MB / 1.232 GB Notification: Performance of NFTyping.typeBindings: time 0.01035/1.146, allocations: 4.679 MB / 1.512 GB, free: 15.96 MB / 1.248 GB Notification: Performance of NFTyping.typeClassSections: time 0.005717/1.152, allocations: 2.568 MB / 1.515 GB, free: 13.4 MB / 1.248 GB Notification: Performance of NFFlatten.flatten: time 0.01669/1.168, allocations: 12.18 MB / 1.527 GB, free: 1.211 MB / 1.248 GB Notification: Performance of NFFlatten.resolveConnections: time 0.003477/1.172, allocations: 2.236 MB / 1.529 GB, free: 14.93 MB / 1.264 GB Notification: Performance of NFEvalConstants.evaluate: time 0.006768/1.179, allocations: 3.328 MB / 1.532 GB, free: 11.59 MB / 1.264 GB Notification: Performance of NFSimplifyModel.simplify: time 0.003528/1.182, allocations: 1.857 MB / 1.534 GB, free: 9.73 MB / 1.264 GB Notification: Performance of NFPackage.collectConstants: time 0.0005477/1.183, allocations: 240 kB / 1.534 GB, free: 9.496 MB / 1.264 GB Notification: Performance of NFFlatten.collectFunctions: time 0.007034/1.19, allocations: 3.882 MB / 1.538 GB, free: 5.605 MB / 1.264 GB Notification: Performance of NFScalarize.scalarize: time 0.00129/1.191, allocations: 1.161 MB / 1.539 GB, free: 4.441 MB / 1.264 GB Notification: Performance of NFVerifyModel.verify: time 0.002882/1.194, allocations: 1.706 MB / 1.541 GB, free: 2.727 MB / 1.264 GB Notification: Performance of NFConvertDAE.convert: time 0.01018/1.204, allocations: 5.874 MB / 1.547 GB, free: 12.83 MB / 1.279 GB Notification: Performance of FrontEnd - DAE generated: time 5.701e-06/1.204, allocations: 0 / 1.547 GB, free: 12.83 MB / 1.279 GB Notification: Performance of FrontEnd: time 2.074e-06/1.204, allocations: 0 / 1.547 GB, free: 12.83 MB / 1.279 GB Notification: Performance of Transformations before backend: time 0.0001411/1.204, allocations: 0 / 1.547 GB, free: 12.83 MB / 1.279 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 349 * Number of variables: 349 Notification: Performance of Generate backend data structure: time 0.009104/1.213, allocations: 3.93 MB / 1.55 GB, free: 8.816 MB / 1.279 GB Notification: Performance of prepare preOptimizeDAE: time 4.328e-05/1.213, allocations: 12.86 kB / 1.55 GB, free: 8.805 MB / 1.279 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0003303/1.214, allocations: 202.8 kB / 1.551 GB, free: 8.598 MB / 1.279 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.006987/1.221, allocations: 1.122 MB / 1.552 GB, free: 7.473 MB / 1.279 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.007346/1.228, allocations: 4.059 MB / 1.556 GB, free: 3.352 MB / 1.279 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001206/1.228, allocations: 118.7 kB / 1.556 GB, free: 3.234 MB / 1.279 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0004473/1.229, allocations: 151.9 kB / 1.556 GB, free: 3.086 MB / 1.279 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.003994/1.233, allocations: 1.71 MB / 1.558 GB, free: 1.305 MB / 1.279 GB Notification: Performance of preOpt findStateOrder (simulation): time 4.425e-05/1.233, allocations: 3.938 kB / 1.558 GB, free: 1.301 MB / 1.279 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001704/1.233, allocations: 56 kB / 1.558 GB, free: 1.246 MB / 1.279 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.199e-05/1.233, allocations: 58.58 kB / 1.558 GB, free: 1.188 MB / 1.279 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.5784/1.812, allocations: 1.434 MB / 1.559 GB, free: 390.2 MB / 1.279 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 0.01379/1.825, allocations: 8.685 MB / 1.568 GB, free: 384.6 MB / 1.279 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002181/1.828, allocations: 1.017 MB / 1.569 GB, free: 384.1 MB / 1.279 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.00114/1.829, allocations: 0.5029 MB / 1.569 GB, free: 384 MB / 1.279 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0001821/1.829, allocations: 110.8 kB / 1.569 GB, free: 383.9 MB / 1.279 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.598e-05/1.829, allocations: 50.69 kB / 1.569 GB, free: 383.8 MB / 1.279 GB Notification: Performance of pre-optimization done (n=70): time 2.585e-06/1.829, allocations: 0 / 1.569 GB, free: 383.8 MB / 1.279 GB Notification: Performance of matching and sorting (n=70): time 0.003764/1.833, allocations: 1.469 MB / 1.571 GB, free: 383.3 MB / 1.279 GB Notification: Performance of inlineWhenForInitialization (initialization): time 2.689e-05/1.833, allocations: 63.78 kB / 1.571 GB, free: 383.3 MB / 1.279 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003269/1.836, allocations: 2.982 MB / 1.574 GB, free: 382.2 MB / 1.279 GB Notification: Performance of collectPreVariables (initialization): time 0.0001386/1.836, allocations: 48.86 kB / 1.574 GB, free: 382.1 MB / 1.279 GB Notification: Performance of collectInitialEqns (initialization): time 0.0007771/1.837, allocations: 1.287 MB / 1.575 GB, free: 381.2 MB / 1.279 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001963/1.837, allocations: 269.8 kB / 1.575 GB, free: 381.1 MB / 1.279 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0005157/1.838, allocations: 427.6 kB / 1.576 GB, free: 380.9 MB / 1.279 GB Notification: Performance of setup shared object (initialization): time 3.932e-05/1.838, allocations: 312.7 kB / 1.576 GB, free: 380.6 MB / 1.279 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001374/1.839, allocations: 0.8093 MB / 1.577 GB, free: 380.3 MB / 1.279 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001665/1.841, allocations: 1.318 MB / 1.578 GB, free: 379.4 MB / 1.279 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.002742/1.844, allocations: 1.902 MB / 1.58 GB, free: 378.2 MB / 1.279 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.005e-05/1.844, allocations: 2.844 kB / 1.58 GB, free: 378.2 MB / 1.279 GB Notification: Performance of matching and sorting (n=254) (initialization): time 0.004029/1.848, allocations: 2.411 MB / 1.582 GB, free: 376.9 MB / 1.279 GB Notification: Performance of prepare postOptimizeDAE: time 2.662e-05/1.848, allocations: 11.94 kB / 1.582 GB, free: 376.9 MB / 1.279 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.677e-05/1.848, allocations: 12 kB / 1.582 GB, free: 376.9 MB / 1.279 GB Notification: Performance of postOpt tearingSystem (initialization): time 3.407e-05/1.848, allocations: 22.19 kB / 1.582 GB, free: 376.9 MB / 1.279 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001429/1.849, allocations: 395.7 kB / 1.583 GB, free: 376.5 MB / 1.279 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0002583/1.849, allocations: 0.6065 MB / 1.583 GB, free: 375.9 MB / 1.279 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001909/1.851, allocations: 243.2 kB / 1.583 GB, free: 375.6 MB / 1.279 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001191/1.851, allocations: 71.97 kB / 1.584 GB, free: 375.6 MB / 1.279 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.00206/1.854, allocations: 1.433 MB / 1.585 GB, free: 374.1 MB / 1.279 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.001418/1.855, allocations: 1.297 MB / 1.586 GB, free: 372.7 MB / 1.279 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.002299/1.857, allocations: 1.866 MB / 1.588 GB, free: 370.7 MB / 1.279 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 6.352e-06/1.857, allocations: 0 / 1.588 GB, free: 370.7 MB / 1.279 GB Notification: Performance of matching and sorting (n=254) (initialization_lambda0): time 0.003724/1.861, allocations: 2.362 MB / 1.59 GB, free: 368.3 MB / 1.279 GB Notification: Performance of prepare postOptimizeDAE: time 1.852e-05/1.861, allocations: 8 kB / 1.59 GB, free: 368.3 MB / 1.279 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.615e-05/1.861, allocations: 12 kB / 1.59 GB, free: 368.3 MB / 1.279 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.829e-05/1.861, allocations: 21.75 kB / 1.59 GB, free: 368.3 MB / 1.279 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001226/1.862, allocations: 367.3 kB / 1.591 GB, free: 367.9 MB / 1.279 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.833e-05/1.862, allocations: 23.94 kB / 1.591 GB, free: 367.9 MB / 1.279 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002031/1.864, allocations: 192.4 kB / 1.591 GB, free: 367.7 MB / 1.279 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001151/1.865, allocations: 67.19 kB / 1.591 GB, free: 367.7 MB / 1.279 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 50 * 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 (188): * Single equations (assignments): 183 * Array equations: 2 * Algorithm blocks: 0 * Record equations: 2 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 0 * 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: Performance of prepare postOptimizeDAE: time 0.0003899/1.865, allocations: 271.8 kB / 1.591 GB, free: 367.4 MB / 1.279 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0004762/1.865, allocations: 282.1 kB / 1.592 GB, free: 367.1 MB / 1.279 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002657/1.868, allocations: 1.124 MB / 1.593 GB, free: 366 MB / 1.279 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.632e-06/1.868, allocations: 7.281 kB / 1.593 GB, free: 366 MB / 1.279 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.551e-06/1.868, allocations: 3.844 kB / 1.593 GB, free: 366 MB / 1.279 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.001909/1.87, allocations: 0.9312 MB / 1.594 GB, free: 365.1 MB / 1.279 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.006192/1.876, allocations: 3.337 MB / 1.597 GB, free: 361.6 MB / 1.279 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.254e-06/1.876, allocations: 8.125 kB / 1.597 GB, free: 361.6 MB / 1.279 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001057/1.877, allocations: 217.5 kB / 1.597 GB, free: 361.4 MB / 1.279 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.031e-05/1.877, allocations: 4 kB / 1.597 GB, free: 361.4 MB / 1.279 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 5.991e-05/1.877, allocations: 15.98 kB / 1.597 GB, free: 361.4 MB / 1.279 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0002431/1.878, allocations: 0.5898 MB / 1.598 GB, free: 360.8 MB / 1.279 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.164e-06/1.878, allocations: 0 / 1.598 GB, free: 360.8 MB / 1.279 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003577/1.881, allocations: 1.728 MB / 1.599 GB, free: 359 MB / 1.279 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001363/1.883, allocations: 494.9 kB / 1.6 GB, free: 358.5 MB / 1.279 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0004118/1.883, allocations: 15.94 kB / 1.6 GB, free: 358.5 MB / 1.279 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001244/1.884, allocations: 83.92 kB / 1.6 GB, free: 358.4 MB / 1.279 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 9.743e-05/1.884, allocations: 40.5 kB / 1.6 GB, free: 358.4 MB / 1.279 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 6.564e-05/1.885, allocations: 31.97 kB / 1.6 GB, free: 358.4 MB / 1.279 GB Notification: Performance of sorting global known variables: time 0.002486/1.887, allocations: 1.992 MB / 1.602 GB, free: 356.4 MB / 1.279 GB Notification: Performance of sort global known variables: time 3.5e-07/1.887, allocations: 4 kB / 1.602 GB, free: 356.4 MB / 1.279 GB Notification: Performance of remove unused functions: time 0.003043/1.89, allocations: 1.271 MB / 1.603 GB, free: 355.1 MB / 1.279 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * Number of states: 3 (floMacDyn.vol.dynBal.medium.Xi[1],floMacDyn.vol.dynBal.U,floMacDyn.vol.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 (72): * Single equations (assignments): 71 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 0 * 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: Performance of Backend phase and start with SimCode phase: time 0.004325/1.894, allocations: 2.67 MB / 1.606 GB, free: 352.4 MB / 1.279 GB Notification: Performance of simCode: created initialization part: time 0.004681/1.899, allocations: 2.691 MB / 1.608 GB, free: 349.8 MB / 1.279 GB Notification: Performance of simCode: created event and clocks part: time 5.18e-06/1.899, allocations: 0 / 1.608 GB, free: 349.8 MB / 1.279 GB Notification: Performance of simCode: created simulation system equations: time 0.001076/1.9, allocations: 476.7 kB / 1.609 GB, free: 349.3 MB / 1.279 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.005245/1.905, allocations: 1.453 MB / 1.61 GB, free: 347.9 MB / 1.279 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02588/1.931, allocations: 19.45 MB / 1.629 GB, free: 328 MB / 1.279 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.00118/1.933, allocations: 1.927 MB / 1.631 GB, free: 326 MB / 1.279 GB Notification: Performance of simCode: alias equations: time 0.002526/1.935, allocations: 0.7316 MB / 1.632 GB, free: 325.3 MB / 1.279 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001386/1.937, allocations: 1.171 MB / 1.633 GB, free: 324.1 MB / 1.279 GB Notification: Performance of SimCode: time 7.42e-07/1.937, allocations: 3.938 kB / 1.633 GB, free: 324.1 MB / 1.279 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.09886/2.035, allocations: 72 MB / 1.703 GB, free: 253 MB / 1.279 GB Notification: Performance of buildModelFMU: Generate platform static: time 20.37/22.41, allocations: 3.984 kB / 1.703 GB, free: 253 MB / 1.279 GB (rm -f Buildings_10_Buildings.Fluid.Movers.Validation.FlowControlled_m_flow.pipe ; mkfifo Buildings_10_Buildings.Fluid.Movers.Validation.FlowControlled_m_flow.pipe ; head -c 1048576 < Buildings_10_Buildings.Fluid.Movers.Validation.FlowControlled_m_flow.pipe >> ../files/Buildings_10_Buildings.Fluid.Movers.Validation.FlowControlled_m_flow.sim & python3 -m fmpy simulate --output-file Buildings_10_Buildings.Fluid.Movers.Validation.FlowControlled_m_flow_res.csv --start-time 0 --stop-time 1 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.0004 Buildings_10_Buildings_Fluid_Movers_Validation_FlowControlled_m_flow.fmu > Buildings_10_Buildings.Fluid.Movers.Validation.FlowControlled_m_flow.pipe 2>&1) diffSimulationResults("Buildings_10_Buildings.Fluid.Movers.Validation.FlowControlled_m_flow_res.csv","/mnt/ReferenceFiles/Buildings/csv/maint_10.0.x/Buildings_Fluid_Movers_Validation_FlowControlled_m_flow.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_10_Buildings.Fluid.Movers.Validation.FlowControlled_m_flow.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches