Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.Controls.Continuous.Validation.LimPIDReset.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.Continuous.Validation.LimPIDReset,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|setPoi.y|mea.y|trigger.y|limPIDDef.y|limPIDDef.controlError|limPIDPar.y|limPIDPar.y_reset|limPIDInp.y|limPIDInp.y_reset_in",fileNamePrefix="Buildings_latest_Buildings.Controls.Continuous.Validation.LimPIDReset") translateModel(Buildings.Controls.Continuous.Validation.LimPIDReset,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|setPoi.y|mea.y|trigger.y|limPIDDef.y|limPIDDef.controlError|limPIDPar.y|limPIDPar.y_reset|limPIDInp.y|limPIDInp.y_reset_in",fileNamePrefix="Buildings_latest_Buildings.Controls.Continuous.Validation.LimPIDReset") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001462/0.001462, allocations: 107.6 kB / 16.37 MB, free: 6.477 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001657/0.001657, allocations: 193.8 kB / 17.31 MB, free: 5.824 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.349/1.349, allocations: 222.9 MB / 241 MB, free: 15.17 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.0.0-master/package.mo): time 2.45/2.45, allocations: 442.6 MB / 0.7165 GB, free: 14.66 MB / 0.5919 GB Notification: Performance of FrontEnd - loaded program: time 0.001345/0.001345, allocations: 68 kB / 0.8773 GB, free: 10.97 MB / 0.6544 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2874/0.2888, allocations: 153 MB / 1.027 GB, free: 2.059 MB / 0.795 GB Notification: Performance of NFInst.instantiate(Buildings.Controls.Continuous.Validation.LimPIDReset): time 0.005668/0.2945, allocations: 4.345 MB / 1.031 GB, free: 13.69 MB / 0.8106 GB Notification: Performance of NFInst.instExpressions: time 0.003217/0.2977, allocations: 1.593 MB / 1.033 GB, free: 12.09 MB / 0.8106 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0007663/0.2985, allocations: 35.81 kB / 1.033 GB, free: 12.05 MB / 0.8106 GB Notification: Performance of NFTyping.typeComponents: time 0.0005462/0.2991, allocations: 170.2 kB / 1.033 GB, free: 11.89 MB / 0.8106 GB Notification: Performance of NFTyping.typeBindings: time 0.0009947/0.3001, allocations: 226.1 kB / 1.033 GB, free: 11.66 MB / 0.8106 GB Notification: Performance of NFTyping.typeClassSections: time 0.001473/0.3016, allocations: 0.6713 MB / 1.034 GB, free: 11 MB / 0.8106 GB Notification: Performance of NFFlatten.flatten: time 0.001422/0.303, allocations: 1.222 MB / 1.035 GB, free: 9.781 MB / 0.8106 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0006813/0.3037, allocations: 0.504 MB / 1.035 GB, free: 9.254 MB / 0.8106 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0005024/0.3042, allocations: 454 kB / 1.036 GB, free: 8.809 MB / 0.8106 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0004221/0.3047, allocations: 461.4 kB / 1.036 GB, free: 8.355 MB / 0.8106 GB Notification: Performance of NFPackage.collectConstants: time 0.0001274/0.3048, allocations: 104 kB / 1.036 GB, free: 8.254 MB / 0.8106 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0001073/0.3049, allocations: 100 kB / 1.036 GB, free: 8.156 MB / 0.8106 GB Notification: Performance of NFScalarize.scalarize: time 0.000172/0.3051, allocations: 239 kB / 1.037 GB, free: 7.922 MB / 0.8106 GB Notification: Performance of NFVerifyModel.verify: time 0.0003308/0.3054, allocations: 485.1 kB / 1.037 GB, free: 7.445 MB / 0.8106 GB Notification: Performance of NFConvertDAE.convert: time 0.0009086/0.3064, allocations: 1.16 MB / 1.038 GB, free: 6.281 MB / 0.8106 GB Notification: Performance of FrontEnd - DAE generated: time 3.667e-06/0.3064, allocations: 4 kB / 1.038 GB, free: 6.277 MB / 0.8106 GB Notification: Performance of FrontEnd: time 1.262e-06/0.3064, allocations: 0 / 1.038 GB, free: 6.277 MB / 0.8106 GB Notification: Performance of Transformations before backend: time 1.076e-05/0.3064, allocations: 0 / 1.038 GB, free: 6.277 MB / 0.8106 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 168 * Number of variables: 168 Notification: Performance of Generate backend data structure: time 0.002212/0.3086, allocations: 1.391 MB / 1.04 GB, free: 4.832 MB / 0.8106 GB Notification: Performance of prepare preOptimizeDAE: time 3.72e-05/0.3087, allocations: 12.03 kB / 1.04 GB, free: 4.82 MB / 0.8106 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0001619/0.3088, allocations: 119.4 kB / 1.04 GB, free: 4.703 MB / 0.8106 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001256/0.3101, allocations: 0.7703 MB / 1.04 GB, free: 3.891 MB / 0.8106 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 8.64e-05/0.3102, allocations: 84.25 kB / 1.04 GB, free: 3.801 MB / 0.8106 GB Notification: Performance of preOpt expandDerOperator (simulation): time 9.575e-05/0.3103, allocations: 68.38 kB / 1.041 GB, free: 3.734 MB / 0.8106 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001186/0.3115, allocations: 0.729 MB / 1.041 GB, free: 2.973 MB / 0.8106 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.62e-05/0.3115, allocations: 0 / 1.041 GB, free: 2.973 MB / 0.8106 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 6.077e-05/0.3116, allocations: 35.94 kB / 1.041 GB, free: 2.938 MB / 0.8106 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.379e-05/0.3116, allocations: 16 kB / 1.041 GB, free: 2.922 MB / 0.8106 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001045/0.3126, allocations: 0.5243 MB / 1.042 GB, free: 2.395 MB / 0.8106 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.003131/0.3158, allocations: 2.239 MB / 1.044 GB, free: 84 kB / 0.8106 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001339/0.3171, allocations: 0.6248 MB / 1.045 GB, free: 15.45 MB / 0.8262 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0004878/0.3176, allocations: 274.4 kB / 1.045 GB, free: 15.18 MB / 0.8262 GB Notification: Performance of preOpt evalFunc (simulation): time 4.823e-05/0.3177, allocations: 8.562 kB / 1.045 GB, free: 15.17 MB / 0.8262 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0006132/0.3183, allocations: 327 kB / 1.045 GB, free: 14.84 MB / 0.8262 GB Notification: Performance of pre-optimization done (n=60): time 2.064e-06/0.3183, allocations: 0 / 1.045 GB, free: 14.84 MB / 0.8262 GB Notification: Performance of matching and sorting (n=60): time 0.001508/0.3198, allocations: 0.7439 MB / 1.046 GB, free: 14.09 MB / 0.8262 GB Notification: Performance of inlineWhenForInitialization (initialization): time 6.435e-05/0.3199, allocations: 81.67 kB / 1.046 GB, free: 14 MB / 0.8262 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0007998/0.3207, allocations: 0.7633 MB / 1.047 GB, free: 13.22 MB / 0.8262 GB Notification: Performance of collectPreVariables (initialization): time 4.452e-05/0.3208, allocations: 37.7 kB / 1.047 GB, free: 13.18 MB / 0.8262 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002906/0.3211, allocations: 440.5 kB / 1.047 GB, free: 12.74 MB / 0.8262 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001421/0.3212, allocations: 208.9 kB / 1.047 GB, free: 12.54 MB / 0.8262 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001674/0.3214, allocations: 110.3 kB / 1.048 GB, free: 12.42 MB / 0.8262 GB Notification: Performance of setup shared object (initialization): time 0.0001079/0.3215, allocations: 326 kB / 1.048 GB, free: 12.09 MB / 0.8262 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0004546/0.322, allocations: 211.4 kB / 1.048 GB, free: 11.89 MB / 0.8262 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004861/0.3225, allocations: 308.4 kB / 1.048 GB, free: 11.55 MB / 0.8262 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0008931/0.3234, allocations: 0.5036 MB / 1.049 GB, free: 11.02 MB / 0.8262 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.598e-06/0.3234, allocations: 8 kB / 1.049 GB, free: 11.01 MB / 0.8262 GB Notification: Performance of matching and sorting (n=76) (initialization): time 0.001108/0.3245, allocations: 0.65 MB / 1.049 GB, free: 10.35 MB / 0.8262 GB Notification: Performance of prepare postOptimizeDAE: time 2.023e-05/0.3245, allocations: 8 kB / 1.049 GB, free: 10.34 MB / 0.8262 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.904e-06/0.3246, allocations: 0 / 1.049 GB, free: 10.34 MB / 0.8262 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.791e-05/0.3246, allocations: 11.94 kB / 1.049 GB, free: 10.33 MB / 0.8262 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006191/0.3252, allocations: 144 kB / 1.05 GB, free: 10.19 MB / 0.8262 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.403e-05/0.3252, allocations: 15.88 kB / 1.05 GB, free: 10.18 MB / 0.8262 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004037/0.3256, allocations: 71.34 kB / 1.05 GB, free: 10.11 MB / 0.8262 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.185e-05/0.3257, allocations: 24 kB / 1.05 GB, free: 10.08 MB / 0.8262 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0005745/0.3263, allocations: 353.4 kB / 1.05 GB, free: 9.734 MB / 0.8262 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0004381/0.3267, allocations: 292.5 kB / 1.05 GB, free: 9.414 MB / 0.8262 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0008541/0.3276, allocations: 495.7 kB / 1.051 GB, free: 8.898 MB / 0.8262 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.304e-06/0.3276, allocations: 0 / 1.051 GB, free: 8.898 MB / 0.8262 GB Notification: Performance of matching and sorting (n=76) (initialization_lambda0): time 0.001073/0.3287, allocations: 0.6343 MB / 1.051 GB, free: 8.258 MB / 0.8262 GB Notification: Performance of prepare postOptimizeDAE: time 9.868e-06/0.3287, allocations: 4.25 kB / 1.051 GB, free: 8.254 MB / 0.8262 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.668e-06/0.3287, allocations: 8 kB / 1.051 GB, free: 8.246 MB / 0.8262 GB Notification: Performance of postOpt tearingSystem (initialization): time 7.434e-06/0.3287, allocations: 4 kB / 1.051 GB, free: 8.242 MB / 0.8262 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005752/0.3293, allocations: 139.8 kB / 1.052 GB, free: 8.105 MB / 0.8262 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.459e-05/0.3293, allocations: 7.984 kB / 1.052 GB, free: 8.098 MB / 0.8262 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0003724/0.3297, allocations: 63.45 kB / 1.052 GB, free: 8.035 MB / 0.8262 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.843e-05/0.3297, allocations: 20 kB / 1.052 GB, free: 8.016 MB / 0.8262 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 10 * Number of states: 0 () * Number of discrete variables: 7 ($whenCondition1,trigger.pulseStart,$PRE.trigger.pulseStart,trigger.y,$whenCondition2,limPIDOri.I.local_reset,limPIDDef.I.trigger_internal) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (76): * Single equations (assignments): 76 * 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 0.0001717/0.3299, allocations: 225.2 kB / 1.052 GB, free: 7.793 MB / 0.8262 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001085/0.33, allocations: 94.88 kB / 1.052 GB, free: 7.699 MB / 0.8262 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0001725/0.3302, allocations: 101.3 kB / 1.052 GB, free: 7.598 MB / 0.8262 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 7.855e-06/0.3302, allocations: 7.984 kB / 1.052 GB, free: 7.59 MB / 0.8262 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 9.027e-06/0.3302, allocations: 7.938 kB / 1.052 GB, free: 7.582 MB / 0.8262 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 7.093e-06/0.3302, allocations: 3.984 kB / 1.052 GB, free: 7.578 MB / 0.8262 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002111/0.3324, allocations: 1.435 MB / 1.053 GB, free: 6.086 MB / 0.8262 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.655e-06/0.3324, allocations: 0 / 1.053 GB, free: 6.086 MB / 0.8262 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0005456/0.3329, allocations: 103.8 kB / 1.054 GB, free: 5.984 MB / 0.8262 GB Notification: Performance of postOpt tearingSystem (simulation): time 6.723e-06/0.3329, allocations: 4 kB / 1.054 GB, free: 5.98 MB / 0.8262 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.058e-05/0.333, allocations: 12 kB / 1.054 GB, free: 5.969 MB / 0.8262 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 7.173e-06/0.333, allocations: 7.938 kB / 1.054 GB, free: 5.961 MB / 0.8262 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.563e-06/0.333, allocations: 4 kB / 1.054 GB, free: 5.957 MB / 0.8262 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001581/0.3346, allocations: 0.9634 MB / 1.055 GB, free: 4.973 MB / 0.8262 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0002728/0.3349, allocations: 223.7 kB / 1.055 GB, free: 4.734 MB / 0.8262 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 9.684e-05/0.335, allocations: 15.94 kB / 1.055 GB, free: 4.719 MB / 0.8262 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0004376/0.3354, allocations: 31.95 kB / 1.055 GB, free: 4.688 MB / 0.8262 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 9.548e-05/0.3355, allocations: 40.52 kB / 1.055 GB, free: 4.648 MB / 0.8262 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 4.021e-05/0.3356, allocations: 19.98 kB / 1.055 GB, free: 4.629 MB / 0.8262 GB Notification: Performance of sorting global known variables: time 0.0005895/0.3362, allocations: 0.5146 MB / 1.055 GB, free: 4.121 MB / 0.8262 GB Notification: Performance of sort global known variables: time 1.6e-07/0.3362, allocations: 0 / 1.055 GB, free: 4.121 MB / 0.8262 GB Notification: Performance of remove unused functions: time 0.0006844/0.3369, allocations: 279.1 kB / 1.056 GB, free: 3.848 MB / 0.8262 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 8 (limPIDPar.I.y,limPIDPar.D.x,limPIDDef.I.y,limPIDDef.D.x,limPIDInp.I.y,limPIDInp.D.x,limPIDOri.I.y,limPIDOri.D.x) * Number of discrete variables: 4 (trigger.y,$whenCondition2,$whenCondition1,trigger.pulseStart) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (60): * Single equations (assignments): 59 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 1 * 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 0.0001468/0.337, allocations: 115.1 kB / 1.056 GB, free: 3.727 MB / 0.8262 GB Notification: Performance of simCode: created initialization part: time 0.001532/0.3386, allocations: 0.7919 MB / 1.057 GB, free: 2.938 MB / 0.8262 GB Notification: Performance of simCode: created event and clocks part: time 3.216e-06/0.3386, allocations: 0 / 1.057 GB, free: 2.938 MB / 0.8262 GB Notification: Performance of simCode: created simulation system equations: time 0.0005034/0.3391, allocations: 271.7 kB / 1.057 GB, free: 2.672 MB / 0.8262 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001065/0.3402, allocations: 256.7 kB / 1.057 GB, free: 2.426 MB / 0.8262 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.00248/0.3427, allocations: 1.547 MB / 1.059 GB, free: 0.8438 MB / 0.8262 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005361/0.3432, allocations: 0.9899 MB / 1.059 GB, free: 15.82 MB / 0.8419 GB Notification: Performance of simCode: alias equations: time 0.0004292/0.3436, allocations: 118.8 kB / 1.06 GB, free: 15.7 MB / 0.8419 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001789/0.3438, allocations: 63.42 kB / 1.06 GB, free: 15.64 MB / 0.8419 GB Notification: Performance of SimCode: time 2.2e-07/0.3438, allocations: 3.938 kB / 1.06 GB, free: 15.64 MB / 0.8419 GB Notification: Performance of Templates: time 0.01772/0.3616, allocations: 9.264 MB / 1.069 GB, free: 6.484 MB / 0.8419 GB make -j1 -f Buildings_latest_Buildings.Controls.Continuous.Validation.LimPIDReset.makefile (rm -f Buildings_latest_Buildings.Controls.Continuous.Validation.LimPIDReset.pipe ; mkfifo Buildings_latest_Buildings.Controls.Continuous.Validation.LimPIDReset.pipe ; head -c 1048576 < Buildings_latest_Buildings.Controls.Continuous.Validation.LimPIDReset.pipe >> ../files/Buildings_latest_Buildings.Controls.Continuous.Validation.LimPIDReset.sim & ./Buildings_latest_Buildings.Controls.Continuous.Validation.LimPIDReset -abortSlowSimulation -alarm=480 -s gbode -emit_protected -lv LOG_STATS > Buildings_latest_Buildings.Controls.Continuous.Validation.LimPIDReset.pipe 2>&1) diffSimulationResults("Buildings_latest_Buildings.Controls.Continuous.Validation.LimPIDReset_res.mat","/mnt/ReferenceFiles/Buildings/csv/master/Buildings_Controls_Continuous_Validation_LimPIDReset.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_latest_Buildings.Controls.Continuous.Validation.LimPIDReset.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches