Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_11_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACConverter.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-maint.11.x/package.mo", uses=false) Using package Buildings with version 11.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.0-maint.11.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.AC.OnePhase.Conversion.Examples.ACACConverter,fileNamePrefix="Buildings_11_Buildings_Electrical_AC_OnePhase_Conversion_Examples_ACACConverter",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACConverter,fileNamePrefix="Buildings_11_Buildings_Electrical_AC_OnePhase_Conversion_Examples_ACACConverter",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 0.001659/0.001659, 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 0.001842/0.001842, allocations: 193 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 1.39/1.39, allocations: 222.9 MB / 240.2 MB, free: 4.41 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.0-maint.11.x/package.mo): time 2.588/2.588, allocations: 469.8 MB / 0.7424 GB, free: 7.445 MB / 0.5919 GB Notification: Performance of FrontEnd - loaded program: time 0.00192/0.00192, allocations: 72.64 kB / 0.9087 GB, free: 34.24 MB / 0.7169 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2937/0.2957, allocations: 159.2 MB / 1.064 GB, free: 14.22 MB / 0.8262 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACConverter): time 0.005098/0.3008, allocations: 2.745 MB / 1.067 GB, free: 11.46 MB / 0.8262 GB Notification: Performance of NFInst.instExpressions: time 0.003358/0.3042, allocations: 2.08 MB / 1.069 GB, free: 9.367 MB / 0.8262 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0001066/0.3043, allocations: 7.938 kB / 1.069 GB, free: 9.359 MB / 0.8262 GB Notification: Performance of NFTyping.typeComponents: time 0.0007521/0.3051, allocations: 235.8 kB / 1.069 GB, free: 9.129 MB / 0.8262 GB Notification: Performance of NFTyping.typeBindings: time 0.0004662/0.3056, allocations: 219.1 kB / 1.069 GB, free: 8.914 MB / 0.8262 GB Notification: Performance of NFTyping.typeClassSections: time 0.0005907/0.3062, allocations: 275.2 kB / 1.07 GB, free: 8.645 MB / 0.8262 GB Notification: Performance of NFFlatten.flatten: time 0.0003424/0.3065, allocations: 307.1 kB / 1.07 GB, free: 8.344 MB / 0.8262 GB Notification: Performance of NFFlatten.resolveConnections: time 0.000302/0.3068, allocations: 162 kB / 1.07 GB, free: 8.188 MB / 0.8262 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0001731/0.307, allocations: 119.6 kB / 1.07 GB, free: 8.07 MB / 0.8262 GB Notification: Performance of NFSimplifyModel.simplify: time 0.000261/0.3073, allocations: 151.5 kB / 1.07 GB, free: 7.922 MB / 0.8262 GB Notification: Performance of NFPackage.collectConstants: time 4.179e-05/0.3073, allocations: 20 kB / 1.07 GB, free: 7.902 MB / 0.8262 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0006236/0.308, allocations: 415.3 kB / 1.071 GB, free: 7.496 MB / 0.8262 GB Notification: Performance of NFScalarize.scalarize: time 0.0001116/0.3081, allocations: 95.78 kB / 1.071 GB, free: 7.402 MB / 0.8262 GB Notification: Performance of NFVerifyModel.verify: time 0.0001377/0.3082, allocations: 123.3 kB / 1.071 GB, free: 7.281 MB / 0.8262 GB Notification: Performance of NFConvertDAE.convert: time 0.0005965/0.3088, allocations: 486.9 kB / 1.071 GB, free: 6.805 MB / 0.8262 GB Notification: Performance of FrontEnd - DAE generated: time 3.477e-06/0.3088, allocations: 0 / 1.071 GB, free: 6.805 MB / 0.8262 GB Notification: Performance of FrontEnd: time 1.172e-06/0.3089, allocations: 0 / 1.071 GB, free: 6.805 MB / 0.8262 GB Notification: Performance of Transformations before backend: time 5.711e-06/0.3089, allocations: 0 / 1.071 GB, free: 6.805 MB / 0.8262 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 54 * Number of variables: 54 Notification: Performance of Generate backend data structure: time 0.0009484/0.3098, allocations: 0.5537 MB / 1.072 GB, free: 6.203 MB / 0.8262 GB Notification: Performance of prepare preOptimizeDAE: time 3.557e-05/0.3099, allocations: 12.03 kB / 1.072 GB, free: 6.191 MB / 0.8262 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 6.335e-05/0.3099, allocations: 58.73 kB / 1.072 GB, free: 6.125 MB / 0.8262 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0009548/0.3109, allocations: 132.3 kB / 1.072 GB, free: 5.996 MB / 0.8262 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0003234/0.3112, allocations: 260.5 kB / 1.072 GB, free: 5.703 MB / 0.8262 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.213e-05/0.3113, allocations: 16.81 kB / 1.072 GB, free: 5.688 MB / 0.8262 GB Notification: Performance of preOpt expandDerOperator (simulation): time 5.482e-05/0.3113, allocations: 27.86 kB / 1.072 GB, free: 5.66 MB / 0.8262 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0007005/0.312, allocations: 397.9 kB / 1.073 GB, free: 5.238 MB / 0.8262 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.537e-05/0.312, allocations: 4 kB / 1.073 GB, free: 5.234 MB / 0.8262 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 3.385e-05/0.3121, allocations: 7.984 kB / 1.073 GB, free: 5.227 MB / 0.8262 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.153e-05/0.3121, allocations: 19.98 kB / 1.073 GB, free: 5.207 MB / 0.8262 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0008056/0.3129, allocations: 379.6 kB / 1.073 GB, free: 4.836 MB / 0.8262 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.002161/0.3151, allocations: 1.737 MB / 1.075 GB, free: 2.953 MB / 0.8262 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0008383/0.316, allocations: 364.8 kB / 1.075 GB, free: 2.578 MB / 0.8262 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0003688/0.3163, allocations: 189.5 kB / 1.075 GB, free: 2.387 MB / 0.8262 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0001425/0.3165, allocations: 93.03 kB / 1.075 GB, free: 2.277 MB / 0.8262 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.199e-05/0.3165, allocations: 38.56 kB / 1.075 GB, free: 2.23 MB / 0.8262 GB Notification: Performance of pre-optimization done (n=25): time 1.412e-06/0.3165, allocations: 4 kB / 1.075 GB, free: 2.227 MB / 0.8262 GB Notification: Performance of matching and sorting (n=35): time 0.009131/0.3257, allocations: 2.041 MB / 1.077 GB, free: 184 kB / 0.8262 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.89e-05/0.3258, allocations: 85.11 kB / 1.078 GB, free: 80 kB / 0.8262 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0001932/0.326, allocations: 182.9 kB / 1.078 GB, free: 15.89 MB / 0.8419 GB Notification: Performance of collectPreVariables (initialization): time 4.582e-05/0.326, allocations: 37.69 kB / 1.078 GB, free: 15.85 MB / 0.8419 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001251/0.3261, allocations: 148.3 kB / 1.078 GB, free: 15.7 MB / 0.8419 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001141/0.3263, allocations: 118.3 kB / 1.078 GB, free: 15.58 MB / 0.8419 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002/0.3265, allocations: 73.67 kB / 1.078 GB, free: 15.5 MB / 0.8419 GB Notification: Performance of setup shared object (initialization): time 0.0001444/0.3266, allocations: 330.8 kB / 1.078 GB, free: 15.17 MB / 0.8419 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0005947/0.3272, allocations: 268.7 kB / 1.079 GB, free: 14.91 MB / 0.8419 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0006522/0.3279, allocations: 353.4 kB / 1.079 GB, free: 14.52 MB / 0.8419 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.00125/0.3291, allocations: 0.6228 MB / 1.08 GB, free: 13.87 MB / 0.8419 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.533e-06/0.3292, allocations: 0 / 1.08 GB, free: 13.87 MB / 0.8419 GB Notification: Performance of matching and sorting (n=44) (initialization): time 0.001439/0.3306, allocations: 0.6629 MB / 1.08 GB, free: 13.2 MB / 0.8419 GB Notification: Performance of prepare postOptimizeDAE: time 1.599e-05/0.3306, allocations: 9.562 kB / 1.08 GB, free: 13.2 MB / 0.8419 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.456e-06/0.3306, allocations: 4 kB / 1.08 GB, free: 13.19 MB / 0.8419 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.622e-05/0.3307, allocations: 4 kB / 1.08 GB, free: 13.19 MB / 0.8419 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0009939/0.3317, allocations: 156 kB / 1.08 GB, free: 13.04 MB / 0.8419 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.271e-05/0.3317, allocations: 11.92 kB / 1.08 GB, free: 13.02 MB / 0.8419 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004529/0.3321, allocations: 51.91 kB / 1.08 GB, free: 12.97 MB / 0.8419 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.336e-05/0.3322, allocations: 20 kB / 1.08 GB, free: 12.95 MB / 0.8419 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0007077/0.3329, allocations: 367.9 kB / 1.081 GB, free: 12.59 MB / 0.8419 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0006234/0.3335, allocations: 333.2 kB / 1.081 GB, free: 12.23 MB / 0.8419 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001194/0.3347, allocations: 0.5939 MB / 1.082 GB, free: 11.61 MB / 0.8419 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.623e-06/0.3348, allocations: 4 kB / 1.082 GB, free: 11.6 MB / 0.8419 GB Notification: Performance of matching and sorting (n=44) (initialization_lambda0): time 0.001374/0.3361, allocations: 0.6455 MB / 1.082 GB, free: 10.95 MB / 0.8419 GB Notification: Performance of prepare postOptimizeDAE: time 1.316e-05/0.3362, allocations: 8 kB / 1.082 GB, free: 10.94 MB / 0.8419 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.845e-06/0.3362, allocations: 0 / 1.082 GB, free: 10.94 MB / 0.8419 GB Notification: Performance of postOpt tearingSystem (initialization): time 6.071e-06/0.3362, allocations: 4 kB / 1.082 GB, free: 10.94 MB / 0.8419 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0008971/0.3371, allocations: 151.8 kB / 1.083 GB, free: 10.79 MB / 0.8419 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 9.308e-06/0.3371, allocations: 4 kB / 1.083 GB, free: 10.79 MB / 0.8419 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004437/0.3376, allocations: 52.11 kB / 1.083 GB, free: 10.73 MB / 0.8419 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.597e-05/0.3376, allocations: 16 kB / 1.083 GB, free: 10.72 MB / 0.8419 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 10 * 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 (44): * Single equations (assignments): 44 * 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 0.0001723/0.3378, allocations: 212 kB / 1.083 GB, free: 10.5 MB / 0.8419 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 9.442e-05/0.3379, allocations: 27.83 kB / 1.083 GB, free: 10.48 MB / 0.8419 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001557/0.3394, allocations: 0.6763 MB / 1.083 GB, free: 9.789 MB / 0.8419 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.901e-06/0.3395, allocations: 4 kB / 1.083 GB, free: 9.785 MB / 0.8419 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.628e-06/0.3395, allocations: 0 / 1.083 GB, free: 9.785 MB / 0.8419 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.929e-06/0.3395, allocations: 0 / 1.083 GB, free: 9.785 MB / 0.8419 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002352/0.3418, allocations: 1.369 MB / 1.085 GB, free: 8.32 MB / 0.8419 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 9.458e-06/0.3419, allocations: 7.984 kB / 1.085 GB, free: 8.312 MB / 0.8419 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0005807/0.3424, allocations: 119.8 kB / 1.085 GB, free: 8.195 MB / 0.8419 GB Notification: Performance of postOpt tearingSystem (simulation): time 7.193e-06/0.3425, allocations: 4 kB / 1.085 GB, free: 8.191 MB / 0.8419 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.862e-05/0.3425, allocations: 11.94 kB / 1.085 GB, free: 8.18 MB / 0.8419 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 5.24e-06/0.3425, allocations: 4 kB / 1.085 GB, free: 8.176 MB / 0.8419 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.073e-06/0.3425, allocations: 0 / 1.085 GB, free: 8.176 MB / 0.8419 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001103/0.3436, allocations: 0.7148 MB / 1.086 GB, free: 7.422 MB / 0.8419 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001624/0.3438, allocations: 144.7 kB / 1.086 GB, free: 7.262 MB / 0.8419 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 5.29e-05/0.3438, allocations: 11.94 kB / 1.086 GB, free: 7.25 MB / 0.8419 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003549/0.3442, allocations: 43.94 kB / 1.086 GB, free: 7.207 MB / 0.8419 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 8.469e-05/0.3443, allocations: 31.91 kB / 1.086 GB, free: 7.176 MB / 0.8419 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.542e-05/0.3443, allocations: 12 kB / 1.086 GB, free: 7.164 MB / 0.8419 GB Notification: Performance of sorting global known variables: time 0.0001929/0.3445, allocations: 159.8 kB / 1.086 GB, free: 7.008 MB / 0.8419 GB Notification: Performance of sort global known variables: time 1.8e-07/0.3445, allocations: 0 / 1.086 GB, free: 7.008 MB / 0.8419 GB Notification: Performance of remove unused functions: time 0.0006268/0.3452, allocations: 144 kB / 1.086 GB, free: 6.867 MB / 0.8419 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 (37): * Single equations (assignments): 37 * 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 0.001571/0.3467, allocations: 1.292 MB / 1.087 GB, free: 5.523 MB / 0.8419 GB Notification: Performance of simCode: created initialization part: time 0.001914/0.3487, allocations: 0.9217 MB / 1.088 GB, free: 4.602 MB / 0.8419 GB Notification: Performance of simCode: created event and clocks part: time 2.074e-06/0.3487, allocations: 0 / 1.088 GB, free: 4.602 MB / 0.8419 GB Notification: Performance of simCode: created simulation system equations: time 0.0004766/0.3492, allocations: 260.9 kB / 1.089 GB, free: 4.348 MB / 0.8419 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0004989/0.3497, allocations: 39.89 kB / 1.089 GB, free: 4.312 MB / 0.8419 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.005984/0.3557, allocations: 3.86 MB / 1.092 GB, free: 284 kB / 0.8419 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004408/0.3561, allocations: 0.7838 MB / 1.093 GB, free: 15.46 MB / 0.8575 GB Notification: Performance of simCode: alias equations: time 0.0006205/0.3568, allocations: 182.7 kB / 1.093 GB, free: 15.28 MB / 0.8575 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002092/0.357, allocations: 87.39 kB / 1.093 GB, free: 15.2 MB / 0.8575 GB Notification: Performance of SimCode: time 2.31e-07/0.357, allocations: 0 / 1.093 GB, free: 15.2 MB / 0.8575 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 1.806/2.163, allocations: 7.628 MB / 1.101 GB, free: 7.707 MB / 0.8575 GB Notification: Performance of buildModelFMU: Generate platform static: time 13.95/16.11, allocations: 11.05 kB / 1.101 GB, free: 7.699 MB / 0.8575 GB (rm -f Buildings_11_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACConverter.pipe ; mkfifo Buildings_11_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACConverter.pipe ; head -c 1048576 < Buildings_11_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACConverter.pipe >> ../files/Buildings_11_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACConverter.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=Buildings_11_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACConverter_res.mat --tempDir=temp_Buildings_11_Buildings_Electrical_AC_OnePhase_Conversion_Examples_ACACConverter_fmu --startTime=0 --stopTime=1 --timeout=400 --tolerance=1e-06 Buildings_11_Buildings_Electrical_AC_OnePhase_Conversion_Examples_ACACConverter.fmu > Buildings_11_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACConverter.pipe 2>&1) diffSimulationResults("Buildings_11_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACConverter_res.mat","/mnt/ReferenceFiles/Buildings/csv/maint_11.x/Buildings_Electrical_AC_OnePhase_Conversion_Examples_ACACConverter.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_11_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACConverter.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches