Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_10_Buildings.Fluid.Humidifiers.Validation.SprayAirWasher_X.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 10.1.0-maint.10.0.x/package.mo", uses=false) Using package Buildings with version 10.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.1.0-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: translateModel(Buildings.Fluid.Humidifiers.Validation.SprayAirWasher_X,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|XSet.y.1.|senHum.X|hum.sta_a.T|hum.sta_b.T|hum.mWat_flow",fileNamePrefix="Buildings_10_Buildings.Fluid.Humidifiers.Validation.SprayAirWasher_X") translateModel(Buildings.Fluid.Humidifiers.Validation.SprayAirWasher_X,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|XSet.y.1.|senHum.X|hum.sta_a.T|hum.sta_b.T|hum.mWat_flow",fileNamePrefix="Buildings_10_Buildings.Fluid.Humidifiers.Validation.SprayAirWasher_X") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001578/0.001578, allocations: 108.7 kB / 16.37 MB, free: 6.016 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.00174/0.00174, allocations: 197.4 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 1.34/1.34, 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 10.1.0-maint.10.0.x/package.mo): time 2.378/2.378, allocations: 437.1 MB / 0.7112 GB, free: 4.355 MB / 0.5762 GB Notification: Performance of FrontEnd - loaded program: time 0.002076/0.002076, allocations: 63.84 kB / 0.8707 GB, free: 1.438 MB / 0.6387 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3116/0.3137, allocations: 151.6 MB / 1.019 GB, free: 9.844 MB / 0.795 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Humidifiers.Validation.SprayAirWasher_X): time 0.6218/0.9355, allocations: 180.3 MB / 1.195 GB, free: 13.05 MB / 0.9044 GB Notification: Performance of NFInst.instExpressions: time 0.006528/0.9421, allocations: 3.749 MB / 1.199 GB, free: 10.02 MB / 0.9044 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0006745/0.9428, allocations: 27.03 kB / 1.199 GB, free: 10.01 MB / 0.9044 GB Notification: Performance of NFTyping.typeComponents: time 0.001051/0.9438, allocations: 434 kB / 1.199 GB, free: 9.676 MB / 0.9044 GB Notification: Performance of NFTyping.typeBindings: time 0.002709/0.9466, allocations: 1.243 MB / 1.2 GB, free: 8.738 MB / 0.9044 GB Notification: Performance of NFTyping.typeClassSections: time 0.001644/0.9483, allocations: 0.7464 MB / 1.201 GB, free: 8.188 MB / 0.9044 GB Notification: Performance of NFFlatten.flatten: time 0.00149/0.9498, allocations: 1.353 MB / 1.202 GB, free: 7.402 MB / 0.9044 GB Notification: Performance of NFFlatten.resolveConnections: time 0.000588/0.9504, allocations: 478.8 kB / 1.203 GB, free: 7.117 MB / 0.9044 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002049/0.9524, allocations: 0.9857 MB / 1.204 GB, free: 6.508 MB / 0.9044 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0005314/0.953, allocations: 457.8 kB / 1.204 GB, free: 6.25 MB / 0.9044 GB Notification: Performance of NFPackage.collectConstants: time 5.752e-05/0.953, allocations: 43.06 kB / 1.204 GB, free: 6.25 MB / 0.9044 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001848/0.9549, allocations: 1.193 MB / 1.205 GB, free: 5.582 MB / 0.9044 GB Notification: Performance of NFScalarize.scalarize: time 0.0001752/0.9551, allocations: 194.7 kB / 1.205 GB, free: 5.453 MB / 0.9044 GB Notification: Performance of NFVerifyModel.verify: time 0.000284/0.9554, allocations: 318.5 kB / 1.206 GB, free: 5.25 MB / 0.9044 GB Notification: Performance of NFConvertDAE.convert: time 0.001396/0.9568, allocations: 1.198 MB / 1.207 GB, free: 4.5 MB / 0.9044 GB Notification: Performance of FrontEnd - DAE generated: time 3.286e-06/0.9568, allocations: 0 / 1.207 GB, free: 4.5 MB / 0.9044 GB Notification: Performance of FrontEnd: time 1.172e-06/0.9568, allocations: 0 / 1.207 GB, free: 4.5 MB / 0.9044 GB Notification: Performance of Transformations before backend: time 8.376e-06/0.9568, allocations: 0 / 1.207 GB, free: 4.5 MB / 0.9044 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 97 * Number of variables: 97 Notification: Performance of Generate backend data structure: time 0.001816/0.9586, allocations: 1.046 MB / 1.208 GB, free: 3.641 MB / 0.9044 GB Notification: Performance of prepare preOptimizeDAE: time 2.976e-05/0.9587, allocations: 7.625 kB / 1.208 GB, free: 3.641 MB / 0.9044 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001228/0.9599, allocations: 217 kB / 1.208 GB, free: 3.543 MB / 0.9044 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0008181/0.9607, allocations: 0.5741 MB / 1.209 GB, free: 3.059 MB / 0.9044 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.494e-05/0.9608, allocations: 28.75 kB / 1.209 GB, free: 3.043 MB / 0.9044 GB Notification: Performance of preOpt expandDerOperator (simulation): time 6.847e-05/0.9608, allocations: 43.27 kB / 1.209 GB, free: 3.027 MB / 0.9044 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0009757/0.9618, allocations: 0.536 MB / 1.209 GB, free: 2.688 MB / 0.9044 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.235e-05/0.9618, allocations: 0 / 1.209 GB, free: 2.688 MB / 0.9044 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 4.202e-05/0.9619, allocations: 17.06 kB / 1.209 GB, free: 2.676 MB / 0.9044 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.658e-05/0.9619, allocations: 17.75 kB / 1.209 GB, free: 2.672 MB / 0.9044 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001101/0.963, allocations: 0.5075 MB / 1.21 GB, free: 2.422 MB / 0.9044 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 0.003128/0.9662, allocations: 2.219 MB / 1.212 GB, free: 492 kB / 0.9044 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0006799/0.9669, allocations: 344.4 kB / 1.212 GB, free: 256 kB / 0.9044 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002053/0.9671, allocations: 149.7 kB / 1.213 GB, free: 176 kB / 0.9044 GB Notification: Performance of preOpt evalFunc (simulation): time 0.001248/0.9683, allocations: 0.8361 MB / 1.213 GB, free: 15.27 MB / 0.92 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0002987/0.9686, allocations: 197 kB / 1.214 GB, free: 15.12 MB / 0.92 GB Notification: Performance of pre-optimization done (n=26): time 1.753e-06/0.9687, allocations: 0 / 1.214 GB, free: 15.12 MB / 0.92 GB Notification: Performance of matching and sorting (n=26): time 0.0009584/0.9696, allocations: 437 kB / 1.214 GB, free: 14.9 MB / 0.92 GB Notification: Performance of inlineWhenForInitialization (initialization): time 6.543e-05/0.9697, allocations: 81.61 kB / 1.214 GB, free: 14.81 MB / 0.92 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.000799/0.9705, allocations: 0.6452 MB / 1.215 GB, free: 14.45 MB / 0.92 GB Notification: Performance of collectPreVariables (initialization): time 3.519e-05/0.9705, allocations: 32.95 kB / 1.215 GB, free: 14.41 MB / 0.92 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002191/0.9708, allocations: 330.7 kB / 1.215 GB, free: 14.12 MB / 0.92 GB Notification: Performance of collectInitialBindings (initialization): time 6.751e-05/0.9709, allocations: 91.19 kB / 1.215 GB, free: 14.04 MB / 0.92 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001294/0.971, allocations: 77.97 kB / 1.215 GB, free: 13.99 MB / 0.92 GB Notification: Performance of setup shared object (initialization): time 0.0001539/0.9711, allocations: 374.5 kB / 1.216 GB, free: 13.63 MB / 0.92 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003299/0.9715, allocations: 136.6 kB / 1.216 GB, free: 13.56 MB / 0.92 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004184/0.9719, allocations: 288.1 kB / 1.216 GB, free: 13.31 MB / 0.92 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0005802/0.9725, allocations: 384.4 kB / 1.216 GB, free: 13.02 MB / 0.92 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.436e-06/0.9725, allocations: 2.312 kB / 1.216 GB, free: 13.02 MB / 0.92 GB Notification: Performance of matching and sorting (n=43) (initialization): time 0.0009174/0.9734, allocations: 472.8 kB / 1.217 GB, free: 12.79 MB / 0.92 GB Notification: Performance of prepare postOptimizeDAE: time 1.698e-05/0.9735, allocations: 11.72 kB / 1.217 GB, free: 12.78 MB / 0.92 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.105e-06/0.9735, allocations: 6.781 kB / 1.217 GB, free: 12.78 MB / 0.92 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.961e-05/0.9735, allocations: 7.344 kB / 1.217 GB, free: 12.78 MB / 0.92 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004148/0.9739, allocations: 83.08 kB / 1.217 GB, free: 12.76 MB / 0.92 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.459e-05/0.974, allocations: 15.3 kB / 1.217 GB, free: 12.75 MB / 0.92 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0005709/0.9745, allocations: 70.97 kB / 1.217 GB, free: 12.71 MB / 0.92 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.478e-05/0.9746, allocations: 24.11 kB / 1.217 GB, free: 12.7 MB / 0.92 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0004776/0.9751, allocations: 296.6 kB / 1.217 GB, free: 12.52 MB / 0.92 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0004016/0.9755, allocations: 274.6 kB / 1.217 GB, free: 12.28 MB / 0.92 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.00057/0.9761, allocations: 385 kB / 1.218 GB, free: 11.98 MB / 0.92 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 3.105e-06/0.9761, allocations: 2.094 kB / 1.218 GB, free: 11.98 MB / 0.92 GB Notification: Performance of matching and sorting (n=43) (initialization_lambda0): time 0.0008922/0.977, allocations: 470.2 kB / 1.218 GB, free: 11.74 MB / 0.92 GB Notification: Performance of prepare postOptimizeDAE: time 1.102e-05/0.977, allocations: 8 kB / 1.218 GB, free: 11.73 MB / 0.92 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.45e-06/0.977, allocations: 4.406 kB / 1.218 GB, free: 11.73 MB / 0.92 GB Notification: Performance of postOpt tearingSystem (initialization): time 6.653e-06/0.977, allocations: 12 kB / 1.218 GB, free: 11.72 MB / 0.92 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003871/0.9774, allocations: 91.81 kB / 1.218 GB, free: 11.63 MB / 0.92 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 7.494e-06/0.9774, allocations: 5.094 kB / 1.218 GB, free: 11.62 MB / 0.92 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0005466/0.978, allocations: 71.67 kB / 1.218 GB, free: 11.55 MB / 0.92 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.615e-05/0.978, allocations: 16 kB / 1.219 GB, free: 11.54 MB / 0.92 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 18 * Number of states: 0 () * Number of discrete variables: 5 ($PRE.XSet.nextTimeEvent,$whenCondition1,XSet.nextTimeEventScaled,$PRE.XSet.nextTimeEventScaled,XSet.nextTimeEvent) * 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 (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0001389/0.9782, allocations: 206.5 kB / 1.219 GB, free: 11.33 MB / 0.92 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 7.488e-05/0.9782, allocations: 59.25 kB / 1.219 GB, free: 11.27 MB / 0.92 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0005765/0.9788, allocations: 323.8 kB / 1.219 GB, free: 10.95 MB / 0.92 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.983e-06/0.9788, allocations: 4 kB / 1.219 GB, free: 10.94 MB / 0.92 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.62e-06/0.9789, allocations: 0 / 1.219 GB, free: 10.94 MB / 0.92 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.653e-06/0.9789, allocations: 7.938 kB / 1.219 GB, free: 10.93 MB / 0.92 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001416/0.9803, allocations: 1.091 MB / 1.22 GB, free: 9.754 MB / 0.92 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.316e-06/0.9803, allocations: 0 / 1.22 GB, free: 9.754 MB / 0.92 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001795/0.9805, allocations: 39.92 kB / 1.22 GB, free: 9.715 MB / 0.92 GB Notification: Performance of postOpt tearingSystem (simulation): time 5.079e-06/0.9805, allocations: 4 kB / 1.22 GB, free: 9.711 MB / 0.92 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.184e-05/0.9805, allocations: 8 kB / 1.22 GB, free: 9.703 MB / 0.92 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 4.748e-06/0.9805, allocations: 8.312 kB / 1.22 GB, free: 9.695 MB / 0.92 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.987e-06/0.9805, allocations: 4 kB / 1.22 GB, free: 9.691 MB / 0.92 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0005285/0.9811, allocations: 479.1 kB / 1.221 GB, free: 9.176 MB / 0.92 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001912/0.9813, allocations: 160.3 kB / 1.221 GB, free: 9 MB / 0.92 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 7.397e-05/0.9814, allocations: 7.938 kB / 1.221 GB, free: 8.992 MB / 0.92 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003597/0.9817, allocations: 24.48 kB / 1.221 GB, free: 8.969 MB / 0.92 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 5.875e-05/0.9818, allocations: 27.84 kB / 1.221 GB, free: 8.941 MB / 0.92 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.213e-05/0.9818, allocations: 8 kB / 1.221 GB, free: 8.934 MB / 0.92 GB Notification: Performance of sorting global known variables: time 0.0006082/0.9824, allocations: 483 kB / 1.221 GB, free: 8.465 MB / 0.92 GB Notification: Performance of sort global known variables: time 2.21e-07/0.9825, allocations: 0 / 1.221 GB, free: 8.465 MB / 0.92 GB Notification: Performance of remove unused functions: time 0.000821/0.9833, allocations: 267.5 kB / 1.222 GB, free: 8.203 MB / 0.92 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 11 * Number of states: 0 () * Number of discrete variables: 3 ($whenCondition1,XSet.nextTimeEvent,XSet.nextTimeEventScaled) * Number of discrete states: 2 (XSet.nextTimeEvent,XSet.nextTimeEventScaled) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (25): * Single equations (assignments): 23 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 2 * 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 0.001141/0.9844, allocations: 0.5059 MB / 1.222 GB, free: 7.863 MB / 0.92 GB Notification: Performance of simCode: created initialization part: time 0.001066/0.9855, allocations: 0.5016 MB / 1.223 GB, free: 7.363 MB / 0.92 GB Notification: Performance of simCode: created event and clocks part: time 2.746e-06/0.9855, allocations: 3.938 kB / 1.223 GB, free: 7.359 MB / 0.92 GB Notification: Performance of simCode: created simulation system equations: time 0.0002176/0.9857, allocations: 128 kB / 1.223 GB, free: 7.234 MB / 0.92 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001179/0.9869, allocations: 290.4 kB / 1.223 GB, free: 6.961 MB / 0.92 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001572/0.9885, allocations: 1.014 MB / 1.224 GB, free: 5.887 MB / 0.92 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0003983/0.9889, allocations: 0.8938 MB / 1.225 GB, free: 4.965 MB / 0.92 GB Notification: Performance of simCode: alias equations: time 0.0005301/0.9895, allocations: 168.8 kB / 1.225 GB, free: 4.801 MB / 0.92 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001215/0.9896, allocations: 43.44 kB / 1.225 GB, free: 4.758 MB / 0.92 GB Notification: Performance of SimCode: time 2.41e-07/0.9896, allocations: 0 / 1.225 GB, free: 4.758 MB / 0.92 GB Notification: Performance of Templates: time 0.01693/1.007, allocations: 10.39 MB / 1.235 GB, free: 10.52 MB / 0.9356 GB make -j1 -f Buildings_10_Buildings.Fluid.Humidifiers.Validation.SprayAirWasher_X.makefile (rm -f Buildings_10_Buildings.Fluid.Humidifiers.Validation.SprayAirWasher_X.pipe ; mkfifo Buildings_10_Buildings.Fluid.Humidifiers.Validation.SprayAirWasher_X.pipe ; head -c 1048576 < Buildings_10_Buildings.Fluid.Humidifiers.Validation.SprayAirWasher_X.pipe >> ../files/Buildings_10_Buildings.Fluid.Humidifiers.Validation.SprayAirWasher_X.sim & ./Buildings_10_Buildings.Fluid.Humidifiers.Validation.SprayAirWasher_X -abortSlowSimulation -alarm=480 -s gbode -emit_protected -lv LOG_STATS > Buildings_10_Buildings.Fluid.Humidifiers.Validation.SprayAirWasher_X.pipe 2>&1) diffSimulationResults("Buildings_10_Buildings.Fluid.Humidifiers.Validation.SprayAirWasher_X_res.mat","/mnt/ReferenceFiles/Buildings/csv/maint_10.0.x/Buildings_Fluid_Humidifiers_Validation_SprayAirWasher_X.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_10_Buildings.Fluid.Humidifiers.Validation.SprayAirWasher_X.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches