Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.Obsolete.Fluid.Movers.Examples.MoverContinuous.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 11.0.0-master/package.mo", uses=false) Using package Buildings with version 11.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.0.0-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: translateModel(Buildings.Obsolete.Fluid.Movers.Examples.MoverContinuous,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|pump_Nrpm.m_flow|pump_dp.m_flow|pump_m_flow.m_flow|pump_y.m_flow",fileNamePrefix="Buildings_latest_Buildings.Obsolete.Fluid.Movers.Examples.MoverContinuous") translateModel(Buildings.Obsolete.Fluid.Movers.Examples.MoverContinuous,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|pump_Nrpm.m_flow|pump_dp.m_flow|pump_m_flow.m_flow|pump_y.m_flow",fileNamePrefix="Buildings_latest_Buildings.Obsolete.Fluid.Movers.Examples.MoverContinuous") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001804/0.001811, allocations: 110.2 kB / 16.37 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 0.002236/0.002236, allocations: 189.5 kB / 17.31 MB, free: 5.613 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.329/1.329, allocations: 222.9 MB / 241 MB, free: 15.18 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.0.0-master/package.mo): time 2.446/2.446, allocations: 442.6 MB / 0.7165 GB, free: 14.66 MB / 0.5919 GB Notification: Performance of FrontEnd - loaded program: time 0.001233/0.001233, allocations: 64.03 kB / 0.8773 GB, free: 10.95 MB / 0.6544 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2812/0.2825, allocations: 153 MB / 1.027 GB, free: 2.027 MB / 0.795 GB Notification: Performance of NFInst.instantiate(Buildings.Obsolete.Fluid.Movers.Examples.MoverContinuous): time 0.655/0.9375, allocations: 97.1 MB / 1.122 GB, free: 1.742 MB / 0.8419 GB Notification: Performance of NFInst.instExpressions: time 0.04736/0.9849, allocations: 32.83 MB / 1.154 GB, free: 10.36 MB / 0.8731 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.006254/0.9912, allocations: 163.3 kB / 1.154 GB, free: 10.31 MB / 0.8731 GB Notification: Performance of NFTyping.typeComponents: time 0.02728/1.019, allocations: 17.02 MB / 1.17 GB, free: 3.781 MB / 0.8731 GB Notification: Performance of NFTyping.typeBindings: time 0.0146/1.033, allocations: 4.903 MB / 1.175 GB, free: 15.86 MB / 0.8887 GB Notification: Performance of NFTyping.typeClassSections: time 0.009724/1.043, allocations: 3.871 MB / 1.179 GB, free: 13.01 MB / 0.8887 GB Notification: Performance of NFFlatten.flatten: time 0.05266/1.096, allocations: 38.05 MB / 1.216 GB, free: 11.85 MB / 0.92 GB Notification: Performance of NFFlatten.resolveConnections: time 0.006354/1.102, allocations: 3.44 MB / 1.219 GB, free: 8.344 MB / 0.92 GB Notification: Performance of NFEvalConstants.evaluate: time 0.01038/1.112, allocations: 3.969 MB / 1.223 GB, free: 4.371 MB / 0.92 GB Notification: Performance of NFSimplifyModel.simplify: time 0.008401/1.121, allocations: 3.205 MB / 1.226 GB, free: 1.156 MB / 0.92 GB Notification: Performance of NFPackage.collectConstants: time 0.002285/1.123, allocations: 468 kB / 1.227 GB, free: 0.6992 MB / 0.92 GB Notification: Performance of NFFlatten.collectFunctions: time 0.008395/1.132, allocations: 2.878 MB / 1.23 GB, free: 13.82 MB / 0.9356 GB Notification: Performance of NFScalarize.scalarize: time 0.002863/1.134, allocations: 2.278 MB / 1.232 GB, free: 11.53 MB / 0.9356 GB Notification: Performance of NFVerifyModel.verify: time 0.006603/1.141, allocations: 3.347 MB / 1.235 GB, free: 8.168 MB / 0.9356 GB Notification: Performance of NFConvertDAE.convert: time 0.01549/1.157, allocations: 9.91 MB / 1.245 GB, free: 14.23 MB / 0.9512 GB Notification: Performance of FrontEnd - DAE generated: time 7.384e-06/1.157, allocations: 0 / 1.245 GB, free: 14.23 MB / 0.9512 GB Notification: Performance of FrontEnd: time 2.194e-06/1.157, allocations: 0 / 1.245 GB, free: 14.23 MB / 0.9512 GB Notification: Performance of Transformations before backend: time 0.000258/1.157, allocations: 0 / 1.245 GB, free: 14.23 MB / 0.9512 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 503 * Number of variables: 503 Notification: Performance of Generate backend data structure: time 0.01739/1.174, allocations: 7.294 MB / 1.252 GB, free: 6.816 MB / 0.9512 GB Notification: Performance of prepare preOptimizeDAE: time 5.067e-05/1.174, allocations: 8.031 kB / 1.252 GB, free: 6.809 MB / 0.9512 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01176/1.186, allocations: 2.064 MB / 1.254 GB, free: 4.734 MB / 0.9512 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.01877/1.205, allocations: 9.475 MB / 1.263 GB, free: 11.18 MB / 0.9669 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002058/1.205, allocations: 176 kB / 1.263 GB, free: 11.01 MB / 0.9669 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0006126/1.206, allocations: 235.9 kB / 1.264 GB, free: 10.78 MB / 0.9669 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.006604/1.212, allocations: 3.43 MB / 1.267 GB, free: 7.258 MB / 0.9669 GB Notification: Performance of preOpt findStateOrder (simulation): time 4.015e-05/1.212, allocations: 11.94 kB / 1.267 GB, free: 7.246 MB / 0.9669 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0002304/1.213, allocations: 84 kB / 1.267 GB, free: 7.164 MB / 0.9669 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.215e-05/1.213, allocations: 48 kB / 1.267 GB, free: 7.117 MB / 0.9669 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.006853/1.22, allocations: 2.681 MB / 1.27 GB, free: 4.434 MB / 0.9669 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 0.02422/1.244, allocations: 14.26 MB / 1.284 GB, free: 5.555 MB / 0.9825 GB Notification: Performance of preOpt comSubExp (simulation): time 0.006347/1.25, allocations: 2.24 MB / 1.286 GB, free: 3.309 MB / 0.9825 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.00247/1.253, allocations: 1 MB / 1.287 GB, free: 2.305 MB / 0.9825 GB Notification: Performance of preOpt evalFunc (simulation): time 0.01085/1.264, allocations: 5.204 MB / 1.292 GB, free: 12.77 MB / 0.9981 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.353e-05/1.264, allocations: 47.56 kB / 1.292 GB, free: 12.71 MB / 0.9981 GB Notification: Performance of pre-optimization done (n=89): time 2.926e-06/1.264, allocations: 0 / 1.292 GB, free: 12.71 MB / 0.9981 GB Notification: Performance of matching and sorting (n=89): time 0.009677/1.273, allocations: 3.37 MB / 1.295 GB, free: 9.336 MB / 0.9981 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.183e-05/1.274, allocations: 60.41 kB / 1.295 GB, free: 9.266 MB / 0.9981 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.01287/1.286, allocations: 7.11 MB / 1.302 GB, free: 2.18 MB / 0.9981 GB Notification: Performance of collectPreVariables (initialization): time 0.0007069/1.287, allocations: 61.7 kB / 1.302 GB, free: 2.113 MB / 0.9981 GB Notification: Performance of collectInitialEqns (initialization): time 0.002962/1.29, allocations: 2.59 MB / 1.305 GB, free: 15.51 MB / 1.014 GB Notification: Performance of collectInitialBindings (initialization): time 0.0007417/1.291, allocations: 335.5 kB / 1.305 GB, free: 15.18 MB / 1.014 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001614/1.292, allocations: 0.916 MB / 1.306 GB, free: 14.25 MB / 1.014 GB Notification: Performance of setup shared object (initialization): time 0.0001098/1.293, allocations: 309.1 kB / 1.306 GB, free: 13.95 MB / 1.014 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.004816/1.297, allocations: 2.813 MB / 1.309 GB, free: 11.12 MB / 1.014 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.005845/1.303, allocations: 3.967 MB / 1.313 GB, free: 6.684 MB / 1.014 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.009745/1.313, allocations: 6.281 MB / 1.319 GB, free: 12 kB / 1.014 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.97e-05/1.313, allocations: 8 kB / 1.319 GB, free: 4 kB / 1.014 GB Notification: Performance of matching and sorting (n=516) (initialization): time 0.01314/1.326, allocations: 7.307 MB / 1.326 GB, free: 8.68 MB / 1.029 GB Notification: Performance of prepare postOptimizeDAE: time 3.83e-05/1.326, allocations: 16 kB / 1.326 GB, free: 8.664 MB / 1.029 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.669e-05/1.326, allocations: 31.94 kB / 1.326 GB, free: 8.633 MB / 1.029 GB Notification: Performance of postOpt tearingSystem (initialization): time 5.027e-05/1.326, allocations: 44 kB / 1.326 GB, free: 8.59 MB / 1.029 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004765/1.331, allocations: 0.8465 MB / 1.327 GB, free: 7.742 MB / 1.029 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003114/1.334, allocations: 3.273 MB / 1.33 GB, free: 4.375 MB / 1.029 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004814/1.339, allocations: 0.5114 MB / 1.331 GB, free: 3.859 MB / 1.029 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.000579/1.34, allocations: 207.9 kB / 1.331 GB, free: 3.656 MB / 1.029 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.006355/1.346, allocations: 3.825 MB / 1.335 GB, free: 15.82 MB / 1.045 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.005046/1.351, allocations: 3.638 MB / 1.338 GB, free: 11.71 MB / 1.045 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.008435/1.36, allocations: 5.623 MB / 1.344 GB, free: 5.703 MB / 1.045 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.306e-05/1.36, allocations: 8 kB / 1.344 GB, free: 5.695 MB / 1.045 GB Notification: Performance of matching and sorting (n=516) (initialization_lambda0): time 0.01305/1.373, allocations: 6.619 MB / 1.35 GB, free: 15.05 MB / 1.061 GB Notification: Performance of prepare postOptimizeDAE: time 3.279e-05/1.373, allocations: 19.98 kB / 1.35 GB, free: 15.03 MB / 1.061 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.06e-05/1.373, allocations: 28 kB / 1.35 GB, free: 15 MB / 1.061 GB Notification: Performance of postOpt tearingSystem (initialization): time 4.513e-05/1.373, allocations: 44 kB / 1.35 GB, free: 14.96 MB / 1.061 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004069/1.377, allocations: 0.8704 MB / 1.351 GB, free: 14.09 MB / 1.061 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 5.792e-05/1.377, allocations: 59.8 kB / 1.351 GB, free: 14.03 MB / 1.061 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004492/1.382, allocations: 410.2 kB / 1.352 GB, free: 13.63 MB / 1.061 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004376/1.382, allocations: 199.9 kB / 1.352 GB, free: 13.43 MB / 1.061 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 127 * 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 (357): * Single equations (assignments): 345 * Array equations: 4 * Algorithm blocks: 0 * Record equations: 4 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 4 * 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): 4 systems {1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0007133/1.383, allocations: 351.3 kB / 1.352 GB, free: 13.08 MB / 1.061 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001277/1.384, allocations: 0.5473 MB / 1.353 GB, free: 12.53 MB / 1.061 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.00789/1.392, allocations: 3.119 MB / 1.356 GB, free: 9.387 MB / 1.061 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.15e-05/1.392, allocations: 15.98 kB / 1.356 GB, free: 9.371 MB / 1.061 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 8.436e-06/1.392, allocations: 0 / 1.356 GB, free: 9.371 MB / 1.061 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.287e-05/1.392, allocations: 7.922 kB / 1.356 GB, free: 9.363 MB / 1.061 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01414/1.406, allocations: 6.461 MB / 1.362 GB, free: 2.82 MB / 1.061 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.634e-06/1.406, allocations: 0 / 1.362 GB, free: 2.82 MB / 1.061 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.002045/1.408, allocations: 351.6 kB / 1.363 GB, free: 2.477 MB / 1.061 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0004308/1.409, allocations: 209.5 kB / 1.363 GB, free: 2.266 MB / 1.061 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001309/1.409, allocations: 43.95 kB / 1.363 GB, free: 2.223 MB / 1.061 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.002101/1.411, allocations: 2.909 MB / 1.366 GB, free: 15.21 MB / 1.076 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.458e-06/1.411, allocations: 4 kB / 1.366 GB, free: 15.21 MB / 1.076 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.007412/1.418, allocations: 2.961 MB / 1.369 GB, free: 12.21 MB / 1.076 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002945/1.421, allocations: 0.9267 MB / 1.369 GB, free: 11.26 MB / 1.076 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001195/1.423, allocations: 24 kB / 1.369 GB, free: 11.23 MB / 1.076 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003141/1.426, allocations: 187.7 kB / 1.37 GB, free: 11.05 MB / 1.076 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001771/1.426, allocations: 76.84 kB / 1.37 GB, free: 10.98 MB / 1.076 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001909/1.426, allocations: 71.92 kB / 1.37 GB, free: 10.91 MB / 1.076 GB Notification: Performance of sorting global known variables: time 0.008794/1.435, allocations: 4.808 MB / 1.374 GB, free: 6.129 MB / 1.076 GB Notification: Performance of sort global known variables: time 2.41e-07/1.435, allocations: 0 / 1.374 GB, free: 6.129 MB / 1.076 GB Notification: Performance of remove unused functions: time 0.007267/1.442, allocations: 2.278 MB / 1.377 GB, free: 3.848 MB / 1.076 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * 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 (112): * Single equations (assignments): 98 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 10 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 2 * Torn equation systems: 2 * 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: 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): 2 systems {(1,1), (1,1)} Notification: Performance of Backend phase and start with SimCode phase: time 0.001813/1.444, allocations: 0.8098 MB / 1.377 GB, free: 3.039 MB / 1.076 GB Notification: Performance of simCode: created initialization part: time 0.01518/1.459, allocations: 7.85 MB / 1.385 GB, free: 11.2 MB / 1.092 GB Notification: Performance of simCode: created event and clocks part: time 7.444e-06/1.459, allocations: 64 / 1.385 GB, free: 11.2 MB / 1.092 GB Notification: Performance of simCode: created simulation system equations: time 0.003152/1.463, allocations: 1.153 MB / 1.386 GB, free: 10.05 MB / 1.092 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.01185/1.474, allocations: 3.064 MB / 1.389 GB, free: 7.07 MB / 1.092 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02085/1.495, allocations: 9.89 MB / 1.399 GB, free: 13.14 MB / 1.107 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.004545/1.5, allocations: 3.235 MB / 1.402 GB, free: 9.883 MB / 1.107 GB Notification: Performance of simCode: alias equations: time 0.007234/1.507, allocations: 1.58 MB / 1.404 GB, free: 8.301 MB / 1.107 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001752/1.509, allocations: 435.2 kB / 1.404 GB, free: 7.875 MB / 1.107 GB Notification: Performance of SimCode: time 8.51e-07/1.509, allocations: 3.938 kB / 1.404 GB, free: 7.871 MB / 1.107 GB Notification: Performance of Templates: time 0.1806/1.69, allocations: 115.8 MB / 1.517 GB, free: 5.301 MB / 1.217 GB make -j1 -f Buildings_latest_Buildings.Obsolete.Fluid.Movers.Examples.MoverContinuous.makefile (rm -f Buildings_latest_Buildings.Obsolete.Fluid.Movers.Examples.MoverContinuous.pipe ; mkfifo Buildings_latest_Buildings.Obsolete.Fluid.Movers.Examples.MoverContinuous.pipe ; head -c 1048576 < Buildings_latest_Buildings.Obsolete.Fluid.Movers.Examples.MoverContinuous.pipe >> ../files/Buildings_latest_Buildings.Obsolete.Fluid.Movers.Examples.MoverContinuous.sim & ./Buildings_latest_Buildings.Obsolete.Fluid.Movers.Examples.MoverContinuous -abortSlowSimulation -alarm=480 -s cvode -emit_protected -lv LOG_STATS > Buildings_latest_Buildings.Obsolete.Fluid.Movers.Examples.MoverContinuous.pipe 2>&1) diffSimulationResults("Buildings_latest_Buildings.Obsolete.Fluid.Movers.Examples.MoverContinuous_res.mat","/mnt/ReferenceFiles/Buildings/csv/master/Buildings_Obsolete_Fluid_Movers_Examples_MoverContinuous.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_latest_Buildings.Obsolete.Fluid.Movers.Examples.MoverContinuous.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches