Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_latest_Buildings.Controls.OBC.RadiantSystems.Cooling.Validation.HighMassSupplyTemperature_TSurRelHum.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.Controls.OBC.RadiantSystems.Cooling.Validation.HighMassSupplyTemperature_TSurRelHum,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|conCoo.TSurSet|conCoo.TSur|conCoo.TSupSet|dewPoi.TDewPoi|conCoo.y|conCoo.yPum|conCoo.on",fileNamePrefix="Buildings_latest_Buildings.Controls.OBC.RadiantSystems.Cooling.Validation.HighMassSupplyTemperature_TSurRelHum") translateModel(Buildings.Controls.OBC.RadiantSystems.Cooling.Validation.HighMassSupplyTemperature_TSurRelHum,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|conCoo.TSurSet|conCoo.TSur|conCoo.TSupSet|dewPoi.TDewPoi|conCoo.y|conCoo.yPum|conCoo.on",fileNamePrefix="Buildings_latest_Buildings.Controls.OBC.RadiantSystems.Cooling.Validation.HighMassSupplyTemperature_TSurRelHum") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001311/0.001311, allocations: 100.2 kB / 15.05 MB, free: 1.105 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001665/0.001665, allocations: 177.3 kB / 15.95 MB, free: 216 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.466/1.466, allocations: 223.2 MB / 239.9 MB, free: 5.422 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.0.0-master/package.mo): time 2.818/2.818, allocations: 436.5 MB / 0.7104 GB, free: 7.898 MB / 0.5606 GB Notification: Performance of FrontEnd - loaded program: time 0.0004849/0.0004851, allocations: 12 kB / 0.8708 GB, free: 4.785 MB / 0.7169 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.8483/0.8488, allocations: 153.7 MB / 1.021 GB, free: 1.105 MB / 0.7637 GB Notification: Performance of NFInst.instantiate(Buildings.Controls.OBC.RadiantSystems.Cooling.Validation.HighMassSupplyTemperature_TSurRelHum): time 0.003399/0.8523, allocations: 2.46 MB / 1.023 GB, free: 14.63 MB / 0.7794 GB Notification: Performance of NFInst.instExpressions: time 0.003069/0.8554, allocations: 1.814 MB / 1.025 GB, free: 12.8 MB / 0.7794 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0003044/0.8557, allocations: 8 kB / 1.025 GB, free: 12.8 MB / 0.7794 GB Notification: Performance of NFTyping.typeComponents: time 0.0004308/0.8562, allocations: 135.3 kB / 1.025 GB, free: 12.66 MB / 0.7794 GB Notification: Performance of NFTyping.typeBindings: time 0.0003669/0.8566, allocations: 155.6 kB / 1.025 GB, free: 12.51 MB / 0.7794 GB Notification: Performance of NFTyping.typeClassSections: time 0.0008586/0.8574, allocations: 299.2 kB / 1.026 GB, free: 12.22 MB / 0.7794 GB Notification: Performance of NFFlatten.flatten: time 0.0004693/0.8579, allocations: 352.9 kB / 1.026 GB, free: 11.87 MB / 0.7794 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0002814/0.8582, allocations: 157.3 kB / 1.026 GB, free: 11.71 MB / 0.7794 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0002041/0.8584, allocations: 163.3 kB / 1.026 GB, free: 11.55 MB / 0.7794 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0002093/0.8586, allocations: 175.1 kB / 1.026 GB, free: 11.38 MB / 0.7794 GB Notification: Performance of NFPackage.collectConstants: time 3.471e-05/0.8587, allocations: 8 kB / 1.026 GB, free: 11.38 MB / 0.7794 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0004391/0.8591, allocations: 211.7 kB / 1.027 GB, free: 11.17 MB / 0.7794 GB Notification: Performance of NFScalarize.scalarize: time 0.0001437/0.8593, allocations: 99.58 kB / 1.027 GB, free: 11.07 MB / 0.7794 GB Notification: Performance of NFVerifyModel.verify: time 0.0001025/0.8594, allocations: 109.4 kB / 1.027 GB, free: 10.96 MB / 0.7794 GB Notification: Performance of NFConvertDAE.convert: time 0.0007753/0.8602, allocations: 0.6136 MB / 1.027 GB, free: 10.34 MB / 0.7794 GB Notification: Performance of FrontEnd - DAE generated: time 3.126e-06/0.8602, allocations: 0 / 1.027 GB, free: 10.34 MB / 0.7794 GB Notification: Performance of FrontEnd: time 1.533e-06/0.8602, allocations: 0 / 1.027 GB, free: 10.34 MB / 0.7794 GB Notification: Performance of Transformations before backend: time 8.175e-06/0.8602, allocations: 0 / 1.027 GB, free: 10.34 MB / 0.7794 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 77 * Number of variables: 77 Notification: Performance of Generate backend data structure: time 0.001614/0.8618, allocations: 0.834 MB / 1.028 GB, free: 9.457 MB / 0.7794 GB Notification: Performance of prepare preOptimizeDAE: time 4.465e-05/0.8619, allocations: 15.97 kB / 1.028 GB, free: 9.441 MB / 0.7794 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0007993/0.8627, allocations: 115.2 kB / 1.028 GB, free: 9.328 MB / 0.7794 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0008126/0.8635, allocations: 453.4 kB / 1.029 GB, free: 8.848 MB / 0.7794 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.241e-05/0.8636, allocations: 32.61 kB / 1.029 GB, free: 8.816 MB / 0.7794 GB Notification: Performance of preOpt expandDerOperator (simulation): time 5.622e-05/0.8636, allocations: 31.98 kB / 1.029 GB, free: 8.785 MB / 0.7794 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0007658/0.8644, allocations: 380.9 kB / 1.029 GB, free: 8.398 MB / 0.7794 GB Notification: Performance of preOpt findStateOrder (simulation): time 9.949e-06/0.8644, allocations: 0 / 1.029 GB, free: 8.398 MB / 0.7794 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 4.072e-05/0.8645, allocations: 16 kB / 1.029 GB, free: 8.383 MB / 0.7794 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.194e-05/0.8645, allocations: 7.984 kB / 1.029 GB, free: 8.375 MB / 0.7794 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0007944/0.8653, allocations: 310.4 kB / 1.029 GB, free: 8.074 MB / 0.7794 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.00241/0.8677, allocations: 1.317 MB / 1.031 GB, free: 6.688 MB / 0.7794 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001084/0.8688, allocations: 419.7 kB / 1.031 GB, free: 6.254 MB / 0.7794 GB Notification: Performance of preOpt evalFunc (simulation): time 4.19e-05/0.8688, allocations: 11.97 kB / 1.031 GB, free: 6.242 MB / 0.7794 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0004161/0.8693, allocations: 179.6 kB / 1.031 GB, free: 6.055 MB / 0.7794 GB Notification: Performance of pre-optimization done (n=24): time 2.244e-06/0.8693, allocations: 4 kB / 1.031 GB, free: 6.051 MB / 0.7794 GB Notification: Performance of matching and sorting (n=24): time 0.001128/0.8704, allocations: 435.1 kB / 1.032 GB, free: 5.621 MB / 0.7794 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.441e-05/0.8705, allocations: 55.41 kB / 1.032 GB, free: 5.555 MB / 0.7794 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0006958/0.8712, allocations: 0.5878 MB / 1.032 GB, free: 4.957 MB / 0.7794 GB Notification: Performance of collectPreVariables (initialization): time 3.567e-05/0.8712, allocations: 33.7 kB / 1.032 GB, free: 4.918 MB / 0.7794 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002607/0.8715, allocations: 260.1 kB / 1.033 GB, free: 4.656 MB / 0.7794 GB Notification: Performance of collectInitialBindings (initialization): time 7.563e-05/0.8716, allocations: 78.89 kB / 1.033 GB, free: 4.578 MB / 0.7794 GB Notification: Performance of simplifyInitialFunctions (initialization): time 2.42e-05/0.8716, allocations: 16 kB / 1.033 GB, free: 4.562 MB / 0.7794 GB Notification: Performance of setup shared object (initialization): time 0.0001521/0.8718, allocations: 358.8 kB / 1.033 GB, free: 4.203 MB / 0.7794 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003513/0.8721, allocations: 143.9 kB / 1.033 GB, free: 4.062 MB / 0.7794 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004291/0.8726, allocations: 228.5 kB / 1.033 GB, free: 3.809 MB / 0.7794 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0003948/0.873, allocations: 171.9 kB / 1.034 GB, free: 3.641 MB / 0.7794 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.795e-06/0.873, allocations: 0 / 1.034 GB, free: 3.641 MB / 0.7794 GB Notification: Performance of matching and sorting (n=43) (initialization): time 0.0009288/0.8739, allocations: 465.7 kB / 1.034 GB, free: 3.18 MB / 0.7794 GB Notification: Performance of prepare postOptimizeDAE: time 0.0003213/0.8742, allocations: 0.7109 MB / 1.035 GB, free: 2.414 MB / 0.7794 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.977e-06/0.8743, allocations: 0 / 1.035 GB, free: 2.414 MB / 0.7794 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.767e-05/0.8743, allocations: 4 kB / 1.035 GB, free: 2.41 MB / 0.7794 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003897/0.8747, allocations: 83.89 kB / 1.035 GB, free: 2.328 MB / 0.7794 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.163e-05/0.8747, allocations: 7.984 kB / 1.035 GB, free: 2.32 MB / 0.7794 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0003166/0.875, allocations: 47.67 kB / 1.035 GB, free: 2.273 MB / 0.7794 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.431e-05/0.8751, allocations: 15.98 kB / 1.035 GB, free: 2.258 MB / 0.7794 GB Notification: Performance of prepare postOptimizeDAE: time 8.175e-06/0.8751, allocations: 4 kB / 1.035 GB, free: 2.254 MB / 0.7794 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.0008131/0.8759, allocations: 391.5 kB / 1.035 GB, free: 1.871 MB / 0.7794 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.685e-06/0.8759, allocations: 0 / 1.035 GB, free: 1.871 MB / 0.7794 GB Notification: Performance of postOpt tearingSystem (initialization): time 7.494e-06/0.8759, allocations: 12.17 kB / 1.035 GB, free: 1.859 MB / 0.7794 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003446/0.8763, allocations: 87.77 kB / 1.035 GB, free: 1.773 MB / 0.7794 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 7.404e-06/0.8763, allocations: 7.984 kB / 1.035 GB, free: 1.766 MB / 0.7794 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002671/0.8766, allocations: 43.72 kB / 1.035 GB, free: 1.723 MB / 0.7794 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.998e-05/0.8766, allocations: 16 kB / 1.035 GB, free: 1.707 MB / 0.7794 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 8 * Number of states: 0 () * Number of discrete variables: 8 ($whenCondition1,$PRE.TPhiRooMea.tab.nextTimeEvent,TPhiRooMea.tab.nextTimeEvent,$PRE.TPhiRooMea.tab.nextTimeEventScaled,TPhiRooMea.tab.nextTimeEventScaled,$PRE.conCoo.hysCoo.y,conCoo.hysCoo.y,conCoo.conCoo.cheYMinMax.y) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (43): * Single equations (assignments): 43 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0003637/0.877, allocations: 285.1 kB / 1.036 GB, free: 1.418 MB / 0.7794 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001399/0.8771, allocations: 51.38 kB / 1.036 GB, free: 1.367 MB / 0.7794 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0008569/0.878, allocations: 353.8 kB / 1.036 GB, free: 1.012 MB / 0.7794 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 7.414e-06/0.878, allocations: 7.953 kB / 1.036 GB, free: 1.004 MB / 0.7794 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.929e-06/0.878, allocations: 0 / 1.036 GB, free: 1.004 MB / 0.7794 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.519e-06/0.878, allocations: 0 / 1.036 GB, free: 1.004 MB / 0.7794 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001433/0.8795, allocations: 0.8585 MB / 1.037 GB, free: 92 kB / 0.7794 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.254e-06/0.8795, allocations: 0 / 1.037 GB, free: 92 kB / 0.7794 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002585/0.8798, allocations: 55.86 kB / 1.037 GB, free: 36 kB / 0.7794 GB Notification: Performance of postOpt tearingSystem (simulation): time 2.344e-06/0.8798, allocations: 0 / 1.037 GB, free: 36 kB / 0.7794 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.98e-05/0.8798, allocations: 7.984 kB / 1.037 GB, free: 28 kB / 0.7794 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 2.224e-06/0.8798, allocations: 0 / 1.037 GB, free: 28 kB / 0.7794 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.693e-06/0.8798, allocations: 0 / 1.037 GB, free: 28 kB / 0.7794 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0007668/0.8806, allocations: 420.3 kB / 1.037 GB, free: 15.6 MB / 0.795 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0002154/0.8808, allocations: 156.4 kB / 1.038 GB, free: 15.43 MB / 0.795 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 5.918e-05/0.8809, allocations: 11.95 kB / 1.038 GB, free: 15.42 MB / 0.795 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0002611/0.8811, allocations: 27.97 kB / 1.038 GB, free: 15.39 MB / 0.795 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 7.493e-05/0.8812, allocations: 27.91 kB / 1.038 GB, free: 15.36 MB / 0.795 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.318e-05/0.8813, allocations: 7.984 kB / 1.038 GB, free: 15.36 MB / 0.795 GB Notification: Performance of sorting global known variables: time 0.0004199/0.8817, allocations: 378.8 kB / 1.038 GB, free: 14.99 MB / 0.795 GB Notification: Performance of sort global known variables: time 1.31e-07/0.8817, allocations: 0 / 1.038 GB, free: 14.99 MB / 0.795 GB Notification: Performance of remove unused functions: time 0.0006136/0.8823, allocations: 175.4 kB / 1.038 GB, free: 14.82 MB / 0.795 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 4 ($whenCondition1,TPhiRooMea.tab.nextTimeEvent,TPhiRooMea.tab.nextTimeEventScaled,conCoo.hysCoo.y) * Number of discrete states: 3 (TPhiRooMea.tab.nextTimeEvent,TPhiRooMea.tab.nextTimeEventScaled,conCoo.hysCoo.y) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (24): * Single equations (assignments): 22 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 2 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.001062/0.8834, allocations: 445.7 kB / 1.039 GB, free: 14.54 MB / 0.795 GB Notification: Performance of simCode: created initialization part: time 0.001275/0.8847, allocations: 0.5222 MB / 1.039 GB, free: 14.02 MB / 0.795 GB Notification: Performance of simCode: created event and clocks part: time 4.548e-06/0.8847, allocations: 4.25 kB / 1.039 GB, free: 14.01 MB / 0.795 GB Notification: Performance of simCode: created simulation system equations: time 0.0003603/0.8851, allocations: 135.8 kB / 1.039 GB, free: 13.88 MB / 0.795 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0005765/0.8856, allocations: 103.2 kB / 1.039 GB, free: 13.78 MB / 0.795 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001676/0.8873, allocations: 0.9368 MB / 1.04 GB, free: 12.82 MB / 0.795 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005056/0.8879, allocations: 0.8626 MB / 1.041 GB, free: 11.93 MB / 0.795 GB Notification: Performance of simCode: alias equations: time 0.0004775/0.8883, allocations: 99.17 kB / 1.041 GB, free: 11.83 MB / 0.795 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001254/0.8885, allocations: 39.41 kB / 1.041 GB, free: 11.79 MB / 0.795 GB Notification: Performance of SimCode: time 3.4e-07/0.8885, allocations: 0 / 1.041 GB, free: 11.79 MB / 0.795 GB Notification: Performance of Templates: time 0.01155/0.9, allocations: 5.418 MB / 1.047 GB, free: 6.469 MB / 0.795 GB make -j1 -f Buildings_latest_Buildings.Controls.OBC.RadiantSystems.Cooling.Validation.HighMassSupplyTemperature_TSurRelHum.makefile (rm -f Buildings_latest_Buildings.Controls.OBC.RadiantSystems.Cooling.Validation.HighMassSupplyTemperature_TSurRelHum.pipe ; mkfifo Buildings_latest_Buildings.Controls.OBC.RadiantSystems.Cooling.Validation.HighMassSupplyTemperature_TSurRelHum.pipe ; head -c 1048576 < Buildings_latest_Buildings.Controls.OBC.RadiantSystems.Cooling.Validation.HighMassSupplyTemperature_TSurRelHum.pipe >> ../files/Buildings_latest_Buildings.Controls.OBC.RadiantSystems.Cooling.Validation.HighMassSupplyTemperature_TSurRelHum.sim & ./Buildings_latest_Buildings.Controls.OBC.RadiantSystems.Cooling.Validation.HighMassSupplyTemperature_TSurRelHum -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS > Buildings_latest_Buildings.Controls.OBC.RadiantSystems.Cooling.Validation.HighMassSupplyTemperature_TSurRelHum.pipe 2>&1) diffSimulationResults("Buildings_latest_Buildings.Controls.OBC.RadiantSystems.Cooling.Validation.HighMassSupplyTemperature_TSurRelHum_res.mat","/mnt/ReferenceFiles/Buildings/csv/master/Buildings_Controls_OBC_RadiantSystems_Cooling_Validation_HighMassSupplyTemperature_TSurRelHum.csv","../files/Buildings_latest_Buildings.Controls.OBC.RadiantSystems.Cooling.Validation.HighMassSupplyTemperature_TSurRelHum.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches