Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.DHC.Networks.Pipes.Validation.Pipe.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-master/package.mo", uses=false) Using package Buildings with version 11.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.0-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.DHC.Networks.Pipes.Validation.Pipe,fileNamePrefix="Buildings_latest_Buildings_DHC_Networks_Pipes_Validation_Pipe",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.DHC.Networks.Pipes.Validation.Pipe,fileNamePrefix="Buildings_latest_Buildings_DHC_Networks_Pipes_Validation_Pipe",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 0.007801/0.007801, allocations: 99.45 kB / 15.73 MB, free: 6.059 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001901/0.001901, allocations: 193.8 kB / 16.67 MB, free: 5.969 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.333/1.333, allocations: 222.9 MB / 240.4 MB, free: 15.11 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.0-master/package.mo): time 2.619/2.619, allocations: 469.4 MB / 0.7422 GB, free: 3.496 MB / 0.6075 GB Notification: Performance of FrontEnd - loaded program: time 0.001169/0.001169, allocations: 67.89 kB / 1.064 GB, free: 14.29 MB / 0.8419 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.7297/0.7309, allocations: 159.1 MB / 1.22 GB, free: 2.234 MB / 0.9356 GB Notification: Performance of NFInst.instantiate(Buildings.DHC.Networks.Pipes.Validation.Pipe): time 0.02623/0.7572, allocations: 28.91 MB / 1.248 GB, free: 5.211 MB / 0.9669 GB Notification: Performance of NFInst.instExpressions: time 0.008838/0.7661, allocations: 6.788 MB / 1.255 GB, free: 14.41 MB / 0.9825 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001034/0.7672, allocations: 35.81 kB / 1.255 GB, free: 14.37 MB / 0.9825 GB Notification: Performance of NFTyping.typeComponents: time 0.001061/0.7683, allocations: 433 kB / 1.255 GB, free: 13.95 MB / 0.9825 GB Notification: Performance of NFTyping.typeBindings: time 0.003165/0.7715, allocations: 1.368 MB / 1.256 GB, free: 12.57 MB / 0.9825 GB Notification: Performance of NFTyping.typeClassSections: time 0.001547/0.773, allocations: 0.6265 MB / 1.257 GB, free: 11.95 MB / 0.9825 GB Notification: Performance of NFFlatten.flatten: time 0.002367/0.7754, allocations: 2.159 MB / 1.259 GB, free: 9.781 MB / 0.9825 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0006482/0.7761, allocations: 0.5503 MB / 1.26 GB, free: 9.219 MB / 0.9825 GB Notification: Performance of NFEvalConstants.evaluate: time 0.001222/0.7773, allocations: 0.817 MB / 1.26 GB, free: 8.398 MB / 0.9825 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0005471/0.7778, allocations: 0.521 MB / 1.261 GB, free: 7.875 MB / 0.9825 GB Notification: Performance of NFPackage.collectConstants: time 7.819e-05/0.7779, allocations: 40 kB / 1.261 GB, free: 7.836 MB / 0.9825 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001655/0.7796, allocations: 0.998 MB / 1.262 GB, free: 6.836 MB / 0.9825 GB Notification: Performance of NFScalarize.scalarize: time 0.0001424/0.7798, allocations: 155.3 kB / 1.262 GB, free: 6.684 MB / 0.9825 GB Notification: Performance of NFVerifyModel.verify: time 0.0003138/0.7801, allocations: 373.9 kB / 1.262 GB, free: 6.316 MB / 0.9825 GB Notification: Performance of NFConvertDAE.convert: time 0.001496/0.7816, allocations: 1.231 MB / 1.264 GB, free: 5.082 MB / 0.9825 GB Notification: Performance of FrontEnd - DAE generated: time 4.308e-06/0.7816, allocations: 0 / 1.264 GB, free: 5.082 MB / 0.9825 GB Notification: Performance of FrontEnd: time 1.272e-06/0.7816, allocations: 4 kB / 1.264 GB, free: 5.078 MB / 0.9825 GB Notification: Performance of Transformations before backend: time 1.029e-05/0.7816, allocations: 0 / 1.264 GB, free: 5.078 MB / 0.9825 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 84 * Number of variables: 84 Notification: Performance of Generate backend data structure: time 0.00149/0.7831, allocations: 1.166 MB / 1.265 GB, free: 3.859 MB / 0.9825 GB Notification: Performance of prepare preOptimizeDAE: time 3.893e-05/0.7832, allocations: 8.625 kB / 1.265 GB, free: 3.852 MB / 0.9825 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 7.193e-05/0.7832, allocations: 78.7 kB / 1.265 GB, free: 3.766 MB / 0.9825 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0001365/0.7834, allocations: 96.31 kB / 1.265 GB, free: 3.672 MB / 0.9825 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001325/0.7847, allocations: 0.7734 MB / 1.266 GB, free: 2.855 MB / 0.9825 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.62e-05/0.7847, allocations: 33 kB / 1.266 GB, free: 2.824 MB / 0.9825 GB Notification: Performance of preOpt expandDerOperator (simulation): time 5.171e-05/0.7848, allocations: 40 kB / 1.266 GB, free: 2.785 MB / 0.9825 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0004786/0.7853, allocations: 322.5 kB / 1.266 GB, free: 2.469 MB / 0.9825 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.093e-05/0.7853, allocations: 3.938 kB / 1.266 GB, free: 2.465 MB / 0.9825 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.72e-05/0.7853, allocations: 12 kB / 1.266 GB, free: 2.453 MB / 0.9825 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 8.466e-06/0.7854, allocations: 8 kB / 1.266 GB, free: 2.445 MB / 0.9825 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0003537/0.7857, allocations: 239.9 kB / 1.266 GB, free: 2.211 MB / 0.9825 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 0.001705/0.7874, allocations: 1.454 MB / 1.268 GB, free: 0.6289 MB / 0.9825 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0002142/0.7876, allocations: 142.5 kB / 1.268 GB, free: 492 kB / 0.9825 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0001293/0.7878, allocations: 108.8 kB / 1.268 GB, free: 380 kB / 0.9825 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0005395/0.7883, allocations: 0.8233 MB / 1.269 GB, free: 15.36 MB / 0.9981 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.457e-05/0.7884, allocations: 42.5 kB / 1.269 GB, free: 15.31 MB / 0.9981 GB Notification: Performance of pre-optimization done (n=19): time 1.342e-06/0.7884, allocations: 0 / 1.269 GB, free: 15.31 MB / 0.9981 GB Notification: Performance of matching and sorting (n=19): time 0.000507/0.7889, allocations: 307.8 kB / 1.269 GB, free: 15.01 MB / 0.9981 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.035e-05/0.7889, allocations: 51.41 kB / 1.269 GB, free: 14.95 MB / 0.9981 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0007236/0.7897, allocations: 0.7235 MB / 1.27 GB, free: 14.21 MB / 0.9981 GB Notification: Performance of collectPreVariables (initialization): time 2.466e-05/0.7897, allocations: 33.7 kB / 1.27 GB, free: 14.18 MB / 0.9981 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002389/0.7899, allocations: 372.1 kB / 1.27 GB, free: 13.81 MB / 0.9981 GB Notification: Performance of collectInitialBindings (initialization): time 4.816e-05/0.79, allocations: 75.3 kB / 1.27 GB, free: 13.73 MB / 0.9981 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001178/0.7901, allocations: 98.03 kB / 1.27 GB, free: 13.63 MB / 0.9981 GB Notification: Performance of setup shared object (initialization): time 9.09e-05/0.7902, allocations: 322 kB / 1.271 GB, free: 13.31 MB / 0.9981 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0001667/0.7904, allocations: 110.5 kB / 1.271 GB, free: 13.2 MB / 0.9981 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0002816/0.7907, allocations: 272 kB / 1.271 GB, free: 12.87 MB / 0.9981 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0003864/0.7911, allocations: 351.9 kB / 1.271 GB, free: 12.46 MB / 0.9981 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.755e-06/0.7911, allocations: 0 / 1.271 GB, free: 12.46 MB / 0.9981 GB Notification: Performance of matching and sorting (n=47) (initialization): time 0.0006274/0.7917, allocations: 444.6 kB / 1.272 GB, free: 12.02 MB / 0.9981 GB Notification: Performance of prepare postOptimizeDAE: time 1.823e-05/0.7917, allocations: 11.94 kB / 1.272 GB, free: 12.01 MB / 0.9981 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.785e-06/0.7918, allocations: 4.438 kB / 1.272 GB, free: 12.01 MB / 0.9981 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.694e-05/0.7918, allocations: 12 kB / 1.272 GB, free: 12 MB / 0.9981 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00425/0.796, allocations: 0.6749 MB / 1.273 GB, free: 11.32 MB / 0.9981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0006308/0.7967, allocations: 1.199 MB / 1.274 GB, free: 10.07 MB / 0.9981 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.000381/0.7971, allocations: 47.91 kB / 1.274 GB, free: 10.03 MB / 0.9981 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.979e-05/0.7971, allocations: 27.98 kB / 1.274 GB, free: 10 MB / 0.9981 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0002865/0.7974, allocations: 248.9 kB / 1.274 GB, free: 9.754 MB / 0.9981 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0002638/0.7977, allocations: 273.8 kB / 1.274 GB, free: 9.406 MB / 0.9981 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.000373/0.7981, allocations: 361.8 kB / 1.275 GB, free: 8.988 MB / 0.9981 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 5.43e-06/0.7981, allocations: 7.984 kB / 1.275 GB, free: 8.98 MB / 0.9981 GB Notification: Performance of matching and sorting (n=47) (initialization_lambda0): time 0.0005841/0.7987, allocations: 440.6 kB / 1.275 GB, free: 8.543 MB / 0.9981 GB Notification: Performance of prepare postOptimizeDAE: time 1.081e-05/0.7987, allocations: 8 kB / 1.275 GB, free: 8.535 MB / 0.9981 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.861e-06/0.7987, allocations: 4 kB / 1.275 GB, free: 8.531 MB / 0.9981 GB Notification: Performance of postOpt tearingSystem (initialization): time 8.055e-06/0.7987, allocations: 8.438 kB / 1.275 GB, free: 8.523 MB / 0.9981 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004093/0.8028, allocations: 0.6748 MB / 1.276 GB, free: 7.848 MB / 0.9981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0005745/0.8034, allocations: 1.207 MB / 1.277 GB, free: 6.594 MB / 0.9981 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0003712/0.8038, allocations: 36.06 kB / 1.277 GB, free: 6.559 MB / 0.9981 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.418e-05/0.8038, allocations: 20 kB / 1.277 GB, free: 6.539 MB / 0.9981 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 19 * 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 (47): * Single equations (assignments): 45 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 2 * 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): 2 systems {1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.000146/0.804, allocations: 216.1 kB / 1.277 GB, free: 6.32 MB / 0.9981 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001019/0.8041, allocations: 71.53 kB / 1.277 GB, free: 6.25 MB / 0.9981 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0005688/0.8047, allocations: 387.8 kB / 1.278 GB, free: 5.852 MB / 0.9981 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.12e-05/0.8047, allocations: 8.234 kB / 1.278 GB, free: 5.844 MB / 0.9981 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.074e-05/0.8047, allocations: 7.938 kB / 1.278 GB, free: 5.836 MB / 0.9981 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.23e-06/0.8047, allocations: 7.922 kB / 1.278 GB, free: 5.828 MB / 0.9981 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001148/0.8059, allocations: 1 MB / 1.279 GB, free: 4.746 MB / 0.9981 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.569e-06/0.8059, allocations: 0 / 1.279 GB, free: 4.746 MB / 0.9981 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 9.129e-05/0.806, allocations: 31.98 kB / 1.279 GB, free: 4.715 MB / 0.9981 GB Notification: Performance of postOpt tearingSystem (simulation): time 5.881e-06/0.806, allocations: 4 kB / 1.279 GB, free: 4.711 MB / 0.9981 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.372e-05/0.806, allocations: 4 kB / 1.279 GB, free: 4.707 MB / 0.9981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 5.691e-06/0.806, allocations: 7.938 kB / 1.279 GB, free: 4.699 MB / 0.9981 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.135e-06/0.806, allocations: 4 kB / 1.279 GB, free: 4.695 MB / 0.9981 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0004374/0.8065, allocations: 474.9 kB / 1.279 GB, free: 4.191 MB / 0.9981 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001688/0.8066, allocations: 172.5 kB / 1.279 GB, free: 4.004 MB / 0.9981 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 7.347e-05/0.8067, allocations: 11.98 kB / 1.279 GB, free: 3.992 MB / 0.9981 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0002532/0.807, allocations: 8 kB / 1.279 GB, free: 3.984 MB / 0.9981 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 3.778e-05/0.807, allocations: 27.91 kB / 1.279 GB, free: 3.957 MB / 0.9981 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 1.572e-05/0.8071, allocations: 8 kB / 1.279 GB, free: 3.949 MB / 0.9981 GB Notification: Performance of sorting global known variables: time 0.0005207/0.8076, allocations: 0.499 MB / 1.28 GB, free: 3.453 MB / 0.9981 GB Notification: Performance of sort global known variables: time 1.11e-07/0.8076, allocations: 0 / 1.28 GB, free: 3.453 MB / 0.9981 GB Notification: Performance of remove unused functions: time 0.0009774/0.8086, allocations: 395.1 kB / 1.28 GB, free: 3.066 MB / 0.9981 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 9 * 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 (22): * Single equations (assignments): 17 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 5 * 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 0.001277/0.8099, allocations: 1.265 MB / 1.281 GB, free: 1.758 MB / 0.9981 GB Notification: Performance of simCode: created initialization part: time 0.01309/0.823, allocations: 2.233 MB / 1.284 GB, free: 15.53 MB / 1.014 GB Notification: Performance of simCode: created event and clocks part: time 6.563e-06/0.823, allocations: 0 / 1.284 GB, free: 15.53 MB / 1.014 GB Notification: Performance of simCode: created simulation system equations: time 0.0001912/0.8232, allocations: 115.8 kB / 1.284 GB, free: 15.41 MB / 1.014 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001549/0.8248, allocations: 294.1 kB / 1.284 GB, free: 15.13 MB / 1.014 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.006205/0.831, allocations: 4.995 MB / 1.289 GB, free: 9.898 MB / 1.014 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004374/0.8314, allocations: 0.9216 MB / 1.29 GB, free: 8.949 MB / 1.014 GB Notification: Performance of simCode: alias equations: time 0.0005145/0.832, allocations: 189.3 kB / 1.29 GB, free: 8.762 MB / 1.014 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002775/0.8323, allocations: 259.3 kB / 1.29 GB, free: 8.508 MB / 1.014 GB Notification: Performance of SimCode: time 7.62e-07/0.8323, allocations: 0 / 1.29 GB, free: 8.508 MB / 1.014 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.07462/0.9069, allocations: 20.37 MB / 1.31 GB, free: 4.441 MB / 1.029 GB Notification: Performance of buildModelFMU: Generate platform static: time 11.95/12.86, allocations: 8.438 kB / 1.31 GB, free: 4.438 MB / 1.029 GB (rm -f Buildings_latest_Buildings.DHC.Networks.Pipes.Validation.Pipe.pipe ; mkfifo Buildings_latest_Buildings.DHC.Networks.Pipes.Validation.Pipe.pipe ; head -c 1048576 < Buildings_latest_Buildings.DHC.Networks.Pipes.Validation.Pipe.pipe >> ../files/Buildings_latest_Buildings.DHC.Networks.Pipes.Validation.Pipe.sim & python3 -m fmpy simulate --output-file Buildings_latest_Buildings.DHC.Networks.Pipes.Validation.Pipe_res.csv --start-time 0 --stop-time 1 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.0004 Buildings_latest_Buildings_DHC_Networks_Pipes_Validation_Pipe.fmu > Buildings_latest_Buildings.DHC.Networks.Pipes.Validation.Pipe.pipe 2>&1) diffSimulationResults("Buildings_latest_Buildings.DHC.Networks.Pipes.Validation.Pipe_res.csv","/mnt/ReferenceFiles/Buildings/csv/master/Buildings_DHC_Networks_Pipes_Validation_Pipe.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_latest_Buildings.DHC.Networks.Pipes.Validation.Pipe.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches