Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_10_Buildings.Electrical.DC.Sensors.Examples.GeneralizedSensor.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.Electrical.DC.Sensors.Examples.GeneralizedSensor,fileNamePrefix="Buildings_10_Buildings_Electrical_DC_Sensors_Examples_GeneralizedSensor",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Electrical.DC.Sensors.Examples.GeneralizedSensor,fileNamePrefix="Buildings_10_Buildings_Electrical_DC_Sensors_Examples_GeneralizedSensor",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 0.001105/0.001105, allocations: 108 kB / 15.6 MB, free: 132 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001153/0.001153, allocations: 191.4 kB / 16.53 MB, free: 6.391 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.233/1.233, allocations: 222.9 MB / 240.2 MB, free: 4.383 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.1.1-maint.10.0.x/package.mo): time 2.334/2.334, allocations: 437.1 MB / 0.7104 GB, free: 5.094 MB / 0.5606 GB Notification: Performance of FrontEnd - loaded program: time 0.00136/0.00136, allocations: 59.91 kB / 0.8693 GB, free: 4.551 MB / 0.7169 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.5209/0.5222, allocations: 151.6 MB / 1.017 GB, free: 2.484 MB / 0.7637 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.DC.Sensors.Examples.GeneralizedSensor): time 0.004158/0.5264, allocations: 2.508 MB / 1.02 GB, free: 15.96 MB / 0.7794 GB Notification: Performance of NFInst.instExpressions: time 0.001566/0.528, allocations: 0.779 MB / 1.021 GB, free: 15.18 MB / 0.7794 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0001681/0.5282, allocations: 8 kB / 1.021 GB, free: 15.18 MB / 0.7794 GB Notification: Performance of NFTyping.typeComponents: time 0.001286/0.5296, allocations: 0.5347 MB / 1.021 GB, free: 14.64 MB / 0.7794 GB Notification: Performance of NFTyping.typeBindings: time 0.0002953/0.5299, allocations: 103.5 kB / 1.021 GB, free: 14.54 MB / 0.7794 GB Notification: Performance of NFTyping.typeClassSections: time 0.0003158/0.5302, allocations: 107.7 kB / 1.021 GB, free: 14.43 MB / 0.7794 GB Notification: Performance of NFFlatten.flatten: time 0.0002372/0.5304, allocations: 199.4 kB / 1.022 GB, free: 14.23 MB / 0.7794 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0003359/0.5308, allocations: 174 kB / 1.022 GB, free: 14.06 MB / 0.7794 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0001189/0.5309, allocations: 75.77 kB / 1.022 GB, free: 13.98 MB / 0.7794 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0002353/0.5312, allocations: 91.72 kB / 1.022 GB, free: 13.89 MB / 0.7794 GB Notification: Performance of NFPackage.collectConstants: time 3.058e-05/0.5312, allocations: 15.94 kB / 1.022 GB, free: 13.88 MB / 0.7794 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0002276/0.5314, allocations: 107.8 kB / 1.022 GB, free: 13.77 MB / 0.7794 GB Notification: Performance of NFScalarize.scalarize: time 8.053e-05/0.5315, allocations: 51.89 kB / 1.022 GB, free: 13.72 MB / 0.7794 GB Notification: Performance of NFVerifyModel.verify: time 9.217e-05/0.5316, allocations: 83.58 kB / 1.022 GB, free: 13.64 MB / 0.7794 GB Notification: Performance of NFConvertDAE.convert: time 0.0003224/0.532, allocations: 217.6 kB / 1.022 GB, free: 13.43 MB / 0.7794 GB Notification: Performance of FrontEnd - DAE generated: time 4.328e-06/0.532, allocations: 0 / 1.022 GB, free: 13.43 MB / 0.7794 GB Notification: Performance of FrontEnd: time 1.824e-06/0.532, allocations: 0 / 1.022 GB, free: 13.43 MB / 0.7794 GB Notification: Performance of Transformations before backend: time 7.995e-06/0.532, allocations: 0 / 1.022 GB, free: 13.43 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: 37 * Number of variables: 37 Notification: Performance of Generate backend data structure: time 0.0006372/0.5326, allocations: 447.3 kB / 1.023 GB, free: 12.94 MB / 0.7794 GB Notification: Performance of prepare preOptimizeDAE: time 3.596e-05/0.5327, allocations: 8.031 kB / 1.023 GB, free: 12.93 MB / 0.7794 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 5.396e-05/0.5327, allocations: 50.67 kB / 1.023 GB, free: 12.88 MB / 0.7794 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0003849/0.5331, allocations: 44.8 kB / 1.023 GB, free: 12.83 MB / 0.7794 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0002193/0.5334, allocations: 216.1 kB / 1.023 GB, free: 12.58 MB / 0.7794 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 1.425e-05/0.5334, allocations: 12.66 kB / 1.023 GB, free: 12.57 MB / 0.7794 GB Notification: Performance of preOpt expandDerOperator (simulation): time 2.059e-05/0.5334, allocations: 12.38 kB / 1.023 GB, free: 12.56 MB / 0.7794 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0003354/0.5337, allocations: 223.1 kB / 1.023 GB, free: 12.32 MB / 0.7794 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.048e-05/0.5338, allocations: 3.938 kB / 1.023 GB, free: 12.32 MB / 0.7794 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 1.814e-05/0.5338, allocations: 11.98 kB / 1.023 GB, free: 12.3 MB / 0.7794 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.361e-05/0.5338, allocations: 16.27 kB / 1.023 GB, free: 12.29 MB / 0.7794 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0002198/0.5341, allocations: 144.7 kB / 1.023 GB, free: 12.15 MB / 0.7794 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001028/0.5351, allocations: 1.127 MB / 1.025 GB, free: 10.89 MB / 0.7794 GB Notification: Performance of preOpt comSubExp (simulation): time 7.377e-05/0.5352, allocations: 46.56 kB / 1.025 GB, free: 10.83 MB / 0.7794 GB Notification: Performance of preOpt resolveLoops (simulation): time 3.743e-05/0.5352, allocations: 16.86 kB / 1.025 GB, free: 10.81 MB / 0.7794 GB Notification: Performance of preOpt evalFunc (simulation): time 1.494e-05/0.5352, allocations: 8.016 kB / 1.025 GB, free: 10.8 MB / 0.7794 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.08e-05/0.5353, allocations: 30.56 kB / 1.025 GB, free: 10.77 MB / 0.7794 GB Notification: Performance of pre-optimization done (n=4): time 1.462e-06/0.5353, allocations: 3.938 kB / 1.025 GB, free: 10.76 MB / 0.7794 GB Notification: Performance of matching and sorting (n=4): time 0.0001948/0.5355, allocations: 81.47 kB / 1.025 GB, free: 10.68 MB / 0.7794 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.202e-05/0.5355, allocations: 51.41 kB / 1.025 GB, free: 10.61 MB / 0.7794 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0001478/0.5357, allocations: 180.9 kB / 1.025 GB, free: 10.43 MB / 0.7794 GB Notification: Performance of collectPreVariables (initialization): time 1.116e-05/0.5357, allocations: 25.7 kB / 1.025 GB, free: 10.4 MB / 0.7794 GB Notification: Performance of collectInitialEqns (initialization): time 7.441e-05/0.5358, allocations: 139.4 kB / 1.025 GB, free: 10.26 MB / 0.7794 GB Notification: Performance of collectInitialBindings (initialization): time 1.185e-05/0.5358, allocations: 11.81 kB / 1.025 GB, free: 10.25 MB / 0.7794 GB Notification: Performance of simplifyInitialFunctions (initialization): time 5.609e-05/0.5359, allocations: 37.61 kB / 1.025 GB, free: 10.2 MB / 0.7794 GB Notification: Performance of setup shared object (initialization): time 0.0001228/0.536, allocations: 322.8 kB / 1.025 GB, free: 9.879 MB / 0.7794 GB Notification: Performance of preBalanceInitialSystem (initialization): time 6.381e-05/0.5361, allocations: 24.86 kB / 1.025 GB, free: 9.852 MB / 0.7794 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0001077/0.5362, allocations: 97.23 kB / 1.026 GB, free: 9.727 MB / 0.7794 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0001735/0.5364, allocations: 125.3 kB / 1.026 GB, free: 9.57 MB / 0.7794 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.715e-06/0.5364, allocations: 4 kB / 1.026 GB, free: 9.566 MB / 0.7794 GB Notification: Performance of matching and sorting (n=14) (initialization): time 0.0002854/0.5367, allocations: 133.5 kB / 1.026 GB, free: 9.43 MB / 0.7794 GB Notification: Performance of prepare postOptimizeDAE: time 1.645e-05/0.5367, allocations: 8 kB / 1.026 GB, free: 9.422 MB / 0.7794 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.715e-06/0.5367, allocations: 3.984 kB / 1.026 GB, free: 9.418 MB / 0.7794 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.521e-05/0.5367, allocations: 7.938 kB / 1.026 GB, free: 9.41 MB / 0.7794 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001098/0.5368, allocations: 23.98 kB / 1.026 GB, free: 9.387 MB / 0.7794 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.069e-05/0.5369, allocations: 8.25 kB / 1.026 GB, free: 9.379 MB / 0.7794 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 7.666e-05/0.5369, allocations: 23.78 kB / 1.026 GB, free: 9.355 MB / 0.7794 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 1.14e-05/0.537, allocations: 8 kB / 1.026 GB, free: 9.348 MB / 0.7794 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 9.369e-05/0.5371, allocations: 124.1 kB / 1.026 GB, free: 9.223 MB / 0.7794 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 6.965e-05/0.5371, allocations: 89.38 kB / 1.026 GB, free: 9.102 MB / 0.7794 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0001123/0.5373, allocations: 125.3 kB / 1.026 GB, free: 8.945 MB / 0.7794 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.042e-06/0.5373, allocations: 0 / 1.026 GB, free: 8.945 MB / 0.7794 GB Notification: Performance of matching and sorting (n=14) (initialization_lambda0): time 0.0001781/0.5375, allocations: 133.3 kB / 1.026 GB, free: 8.809 MB / 0.7794 GB Notification: Performance of prepare postOptimizeDAE: time 8.195e-06/0.5375, allocations: 6.344 kB / 1.026 GB, free: 8.805 MB / 0.7794 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.539e-06/0.5375, allocations: 8 kB / 1.026 GB, free: 8.797 MB / 0.7794 GB Notification: Performance of postOpt tearingSystem (initialization): time 4.498e-06/0.5375, allocations: 7.938 kB / 1.026 GB, free: 8.789 MB / 0.7794 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 7.734e-05/0.5376, allocations: 27.88 kB / 1.026 GB, free: 8.762 MB / 0.7794 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 5.26e-06/0.5376, allocations: 7.984 kB / 1.026 GB, free: 8.754 MB / 0.7794 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 5.994e-05/0.5376, allocations: 11.91 kB / 1.026 GB, free: 8.742 MB / 0.7794 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.053e-06/0.5377, allocations: 4 kB / 1.026 GB, free: 8.738 MB / 0.7794 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 11 * 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 (14): * Single equations (assignments): 14 * 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 8.131e-05/0.5377, allocations: 188.2 kB / 1.027 GB, free: 8.547 MB / 0.7794 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 2.969e-05/0.5378, allocations: 7.906 kB / 1.027 GB, free: 8.539 MB / 0.7794 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 2.865e-05/0.5378, allocations: 20.88 kB / 1.027 GB, free: 8.52 MB / 0.7794 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.934e-06/0.5378, allocations: 0 / 1.027 GB, free: 8.52 MB / 0.7794 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.847e-06/0.5378, allocations: 0 / 1.027 GB, free: 8.52 MB / 0.7794 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.713e-06/0.5378, allocations: 3.984 kB / 1.027 GB, free: 8.516 MB / 0.7794 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0003853/0.5382, allocations: 477 kB / 1.027 GB, free: 7.98 MB / 0.7794 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.226e-06/0.5382, allocations: 0 / 1.027 GB, free: 7.98 MB / 0.7794 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 3.294e-05/0.5383, allocations: 12.06 kB / 1.027 GB, free: 7.969 MB / 0.7794 GB Notification: Performance of postOpt tearingSystem (simulation): time 3.266e-06/0.5383, allocations: 7.938 kB / 1.027 GB, free: 7.961 MB / 0.7794 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 6.171e-06/0.5383, allocations: 0 / 1.027 GB, free: 7.961 MB / 0.7794 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.583e-06/0.5383, allocations: 0 / 1.027 GB, free: 7.961 MB / 0.7794 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.505e-06/0.5383, allocations: 4 kB / 1.027 GB, free: 7.957 MB / 0.7794 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0001124/0.5384, allocations: 119.5 kB / 1.027 GB, free: 7.812 MB / 0.7794 GB Notification: Performance of postOpt removeConstants (simulation): time 4.974e-05/0.5385, allocations: 89.02 kB / 1.027 GB, free: 7.707 MB / 0.7794 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 1.696e-05/0.5385, allocations: 0 / 1.027 GB, free: 7.707 MB / 0.7794 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 3.512e-05/0.5385, allocations: 4 kB / 1.027 GB, free: 7.703 MB / 0.7794 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 1.876e-05/0.5386, allocations: 7.984 kB / 1.027 GB, free: 7.695 MB / 0.7794 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 4.028e-06/0.5386, allocations: 4 kB / 1.027 GB, free: 7.691 MB / 0.7794 GB Notification: Performance of sorting global known variables: time 8.308e-05/0.5387, allocations: 126.3 kB / 1.027 GB, free: 7.57 MB / 0.7794 GB Notification: Performance of sort global known variables: time 1.1e-07/0.5387, allocations: 0 / 1.027 GB, free: 7.57 MB / 0.7794 GB Notification: Performance of remove unused functions: time 0.0003364/0.539, allocations: 51.84 kB / 1.028 GB, free: 7.52 MB / 0.7794 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 4 * 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 (4): * Single equations (assignments): 4 * 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 Backend phase and start with SimCode phase: time 0.0003273/0.5393, allocations: 0.6499 MB / 1.028 GB, free: 6.832 MB / 0.7794 GB Notification: Performance of simCode: created initialization part: time 0.0002002/0.5396, allocations: 115.7 kB / 1.028 GB, free: 6.719 MB / 0.7794 GB Notification: Performance of simCode: created event and clocks part: time 2.605e-06/0.5396, allocations: 0 / 1.028 GB, free: 6.719 MB / 0.7794 GB Notification: Performance of simCode: created simulation system equations: time 2.35e-05/0.5396, allocations: 13.44 kB / 1.028 GB, free: 6.707 MB / 0.7794 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0002552/0.5399, allocations: 19.98 kB / 1.028 GB, free: 6.688 MB / 0.7794 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001521/0.5414, allocations: 1.732 MB / 1.03 GB, free: 4.793 MB / 0.7794 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0002305/0.5416, allocations: 0.7241 MB / 1.031 GB, free: 4.043 MB / 0.7794 GB Notification: Performance of simCode: alias equations: time 9.075e-05/0.5417, allocations: 40.58 kB / 1.031 GB, free: 4.004 MB / 0.7794 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 5.408e-05/0.5418, allocations: 31.42 kB / 1.031 GB, free: 3.973 MB / 0.7794 GB Notification: Performance of SimCode: time 2.31e-07/0.5418, allocations: 0 / 1.031 GB, free: 3.973 MB / 0.7794 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.6115/1.153, allocations: 2.354 MB / 1.033 GB, free: 1.703 MB / 0.7794 GB Notification: Performance of buildModelFMU: Generate platform static: time 12.88/14.03, allocations: 0 / 1.033 GB, free: 1.703 MB / 0.7794 GB (rm -f Buildings_10_Buildings.Electrical.DC.Sensors.Examples.GeneralizedSensor.pipe ; mkfifo Buildings_10_Buildings.Electrical.DC.Sensors.Examples.GeneralizedSensor.pipe ; head -c 1048576 < Buildings_10_Buildings.Electrical.DC.Sensors.Examples.GeneralizedSensor.pipe >> ../files/Buildings_10_Buildings.Electrical.DC.Sensors.Examples.GeneralizedSensor.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=Buildings_10_Buildings.Electrical.DC.Sensors.Examples.GeneralizedSensor_res.mat --tempDir=temp_Buildings_10_Buildings_Electrical_DC_Sensors_Examples_GeneralizedSensor_fmu --startTime=0 --stopTime=1 --timeout=50 --tolerance=1e-06 Buildings_10_Buildings_Electrical_DC_Sensors_Examples_GeneralizedSensor.fmu > Buildings_10_Buildings.Electrical.DC.Sensors.Examples.GeneralizedSensor.pipe 2>&1) diffSimulationResults("Buildings_10_Buildings.Electrical.DC.Sensors.Examples.GeneralizedSensor_res.mat","/mnt/ReferenceFiles/Buildings/csv/maint_10.0.x/Buildings_Electrical_DC_Sensors_Examples_GeneralizedSensor.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_10_Buildings.Electrical.DC.Sensors.Examples.GeneralizedSensor.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches