Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_10_Buildings.Controls.OBC.CDL.Reals.Validation.Limiter.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.Controls.OBC.CDL.Reals.Validation.Limiter,fileNamePrefix="Buildings_10_Buildings_Controls_OBC_CDL_Reals_Validation_Limiter",fmuType="me",version="2.0",platforms={"static"})
"" <> buildModelFMU(Buildings.Controls.OBC.CDL.Reals.Validation.Limiter,fileNamePrefix="Buildings_10_Buildings_Controls_OBC_CDL_Reals_Validation_Limiter",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 0.008472/0.008472, allocations: 98.52 kB / 15.73 MB, free: 5.602 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.002289/0.002289, allocations: 194.3 kB / 16.67 MB, free: 5.523 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 2.057/2.057, allocations: 222.9 MB / 240.4 MB, free: 15.06 MB / 206.1 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.1.1-maint.10.0.x/package.mo): time 3.978/3.978, allocations: 437.1 MB / 0.7105 GB, free: 4.348 MB / 0.5762 GB
Notification: Performance of FrontEnd - loaded program: time 0.003236/0.003237, allocations: 71.89 kB / 1.018 GB, free: 9.812 MB / 0.795 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 1.015/1.019, allocations: 151.6 MB / 1.166 GB, free: 3.707 MB / 0.8887 GB
Notification: Performance of NFInst.instantiate(Buildings.Controls.OBC.CDL.Reals.Validation.Limiter): time 0.002458/1.021, allocations: 0.6823 MB / 1.167 GB, free: 3.031 MB / 0.8887 GB
Notification: Performance of NFInst.instExpressions: time 0.001311/1.022, allocations: 0.8453 MB / 1.168 GB, free: 2.176 MB / 0.8887 GB
Notification: Performance of NFInst.updateImplicitVariability: time 3.955e-05/1.023, allocations: 0 / 1.168 GB, free: 2.176 MB / 0.8887 GB
Notification: Performance of NFTyping.typeComponents: time 3.585e-05/1.023, allocations: 3.938 kB / 1.168 GB, free: 2.172 MB / 0.8887 GB
Notification: Performance of NFTyping.typeBindings: time 6.2e-05/1.023, allocations: 3.938 kB / 1.168 GB, free: 2.168 MB / 0.8887 GB
Notification: Performance of NFTyping.typeClassSections: time 0.000156/1.023, allocations: 15.97 kB / 1.168 GB, free: 2.152 MB / 0.8887 GB
Notification: Performance of NFFlatten.flatten: time 9.378e-05/1.023, allocations: 35.91 kB / 1.168 GB, free: 2.117 MB / 0.8887 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.0001031/1.023, allocations: 4 kB / 1.168 GB, free: 2.113 MB / 0.8887 GB
Notification: Performance of NFEvalConstants.evaluate: time 6.947e-05/1.023, allocations: 19.92 kB / 1.168 GB, free: 2.094 MB / 0.8887 GB
Notification: Performance of NFSimplifyModel.simplify: time 5.758e-05/1.023, allocations: 19.92 kB / 1.168 GB, free: 2.074 MB / 0.8887 GB
Notification: Performance of NFPackage.collectConstants: time 1.772e-05/1.023, allocations: 4 kB / 1.168 GB, free: 2.07 MB / 0.8887 GB
Notification: Performance of NFFlatten.collectFunctions: time 1.199e-05/1.023, allocations: 4 kB / 1.168 GB, free: 2.066 MB / 0.8887 GB
Notification: Performance of NFScalarize.scalarize: time 2.184e-05/1.023, allocations: 7.984 kB / 1.168 GB, free: 2.059 MB / 0.8887 GB
Notification: Performance of NFVerifyModel.verify: time 3.663e-05/1.023, allocations: 11.94 kB / 1.168 GB, free: 2.047 MB / 0.8887 GB
Notification: Performance of NFConvertDAE.convert: time 0.00011/1.023, allocations: 35.88 kB / 1.168 GB, free: 2.012 MB / 0.8887 GB
Notification: Performance of FrontEnd - DAE generated: time 7.083e-06/1.023, allocations: 0 / 1.168 GB, free: 2.012 MB / 0.8887 GB
Notification: Performance of FrontEnd: time 1.903e-06/1.023, allocations: 3.938 kB / 1.168 GB, free: 2.008 MB / 0.8887 GB
Notification: Performance of Transformations before backend: time 1.024e-05/1.023, allocations: 0 / 1.168 GB, free: 2.008 MB / 0.8887 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 3
 * Number of variables: 3
Notification: Performance of Generate backend data structure: time 0.0006296/1.024, allocations: 365.1 kB / 1.168 GB, free: 1.605 MB / 0.8887 GB
Notification: Performance of prepare preOptimizeDAE: time 4.241e-05/1.024, allocations: 8.625 kB / 1.168 GB, free: 1.598 MB / 0.8887 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 3.912e-05/1.024, allocations: 30.75 kB / 1.168 GB, free: 1.559 MB / 0.8887 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 2.905e-05/1.024, allocations: 4.938 kB / 1.168 GB, free: 1.555 MB / 0.8887 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.0001477/1.024, allocations: 164.4 kB / 1.168 GB, free: 1.355 MB / 0.8887 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 1.245e-05/1.024, allocations: 384 / 1.168 GB, free: 1.355 MB / 0.8887 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 1.535e-05/1.024, allocations: 4.375 kB / 1.168 GB, free: 1.352 MB / 0.8887 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.0002437/1.025, allocations: 62.22 kB / 1.168 GB, free: 1.285 MB / 0.8887 GB
Notification: Performance of preOpt findStateOrder (simulation): time 1.172e-05/1.025, allocations: 7.938 kB / 1.168 GB, free: 1.277 MB / 0.8887 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 1.126e-05/1.025, allocations: 3.938 kB / 1.168 GB, free: 1.273 MB / 0.8887 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 9.828e-06/1.025, allocations: 4 kB / 1.168 GB, free: 1.27 MB / 0.8887 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0002597/1.025, allocations: 51.88 kB / 1.169 GB, free: 1.219 MB / 0.8887 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0005188/1.025, allocations: 268.9 kB / 1.169 GB, free: 0.9062 MB / 0.8887 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.0002305/1.026, allocations: 66.47 kB / 1.169 GB, free: 0.832 MB / 0.8887 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.000134/1.026, allocations: 32.89 kB / 1.169 GB, free: 0.7969 MB / 0.8887 GB
Notification: Performance of preOpt evalFunc (simulation): time 2.683e-05/1.026, allocations: 3.984 kB / 1.169 GB, free: 0.793 MB / 0.8887 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.253e-05/1.026, allocations: 38.48 kB / 1.169 GB, free: 0.7461 MB / 0.8887 GB
Notification: Performance of pre-optimization done (n=2): time 1.423e-06/1.026, allocations: 4 kB / 1.169 GB, free: 0.7422 MB / 0.8887 GB
Notification: Performance of matching and sorting (n=2): time 0.000508/1.026, allocations: 113.5 kB / 1.169 GB, free: 0.625 MB / 0.8887 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 5.023e-05/1.027, allocations: 51.41 kB / 1.169 GB, free: 0.5625 MB / 0.8887 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 9.553e-05/1.027, allocations: 105.8 kB / 1.169 GB, free: 460 kB / 0.8887 GB
Notification: Performance of collectPreVariables (initialization): time 1.925e-05/1.027, allocations: 29.83 kB / 1.169 GB, free: 424 kB / 0.8887 GB
Notification: Performance of collectInitialEqns (initialization): time 6.673e-05/1.027, allocations: 84.14 kB / 1.169 GB, free: 336 kB / 0.8887 GB
Notification: Performance of collectInitialBindings (initialization): time 2.214e-05/1.027, allocations: 7.891 kB / 1.169 GB, free: 328 kB / 0.8887 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 3.892e-05/1.027, allocations: 13.72 kB / 1.169 GB, free: 308 kB / 0.8887 GB
Notification: Performance of setup shared object (initialization): time 0.0002013/1.027, allocations: 318.8 kB / 1.17 GB, free: 15.98 MB / 0.9044 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0001389/1.027, allocations: 32.83 kB / 1.17 GB, free: 15.95 MB / 0.9044 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0001552/1.027, allocations: 45.69 kB / 1.17 GB, free: 15.89 MB / 0.9044 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.0002424/1.028, allocations: 60.73 kB / 1.17 GB, free: 15.83 MB / 0.9044 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.993e-06/1.028, allocations: 4.188 kB / 1.17 GB, free: 15.83 MB / 0.9044 GB
Notification: Performance of matching and sorting (n=2) (initialization): time 0.0003132/1.028, allocations: 89.73 kB / 1.17 GB, free: 15.73 MB / 0.9044 GB
Notification: Performance of prepare postOptimizeDAE: time 1.588e-05/1.028, allocations: 4 kB / 1.17 GB, free: 15.73 MB / 0.9044 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.161e-06/1.028, allocations: 4 kB / 1.17 GB, free: 15.73 MB / 0.9044 GB
Notification: Performance of postOpt tearingSystem (initialization): time 1.733e-05/1.028, allocations: 3.984 kB / 1.17 GB, free: 15.72 MB / 0.9044 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001168/1.028, allocations: 11.98 kB / 1.17 GB, free: 15.71 MB / 0.9044 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 5.951e-06/1.028, allocations: 0 / 1.17 GB, free: 15.71 MB / 0.9044 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 8.134e-05/1.028, allocations: 19.97 kB / 1.17 GB, free: 15.69 MB / 0.9044 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 9.397e-06/1.028, allocations: 4 kB / 1.17 GB, free: 15.69 MB / 0.9044 GB
Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0001349/1.028, allocations: 96.12 kB / 1.17 GB, free: 15.59 MB / 0.9044 GB
Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 9.612e-05/1.028, allocations: 33.69 kB / 1.17 GB, free: 15.55 MB / 0.9044 GB
Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0001532/1.029, allocations: 40.86 kB / 1.17 GB, free: 15.51 MB / 0.9044 GB
Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 7.62e-07/1.029, allocations: 4 kB / 1.17 GB, free: 15.5 MB / 0.9044 GB
Notification: Performance of matching and sorting (n=2) (initialization_lambda0): time 0.0001987/1.029, allocations: 65.59 kB / 1.17 GB, free: 15.43 MB / 0.9044 GB
Notification: Performance of prepare postOptimizeDAE: time 8.386e-06/1.029, allocations: 10.81 kB / 1.17 GB, free: 15.43 MB / 0.9044 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.152e-06/1.029, allocations: 0 / 1.17 GB, free: 15.43 MB / 0.9044 GB
Notification: Performance of postOpt tearingSystem (initialization): time 1.894e-06/1.029, allocations: 0 / 1.17 GB, free: 15.43 MB / 0.9044 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 5.445e-05/1.029, allocations: 7.984 kB / 1.17 GB, free: 15.42 MB / 0.9044 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.613e-06/1.029, allocations: 4 kB / 1.17 GB, free: 15.41 MB / 0.9044 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 6.311e-05/1.029, allocations: 12.02 kB / 1.17 GB, free: 15.4 MB / 0.9044 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.755e-06/1.029, allocations: 0 / 1.17 GB, free: 15.4 MB / 0.9044 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 1
 * 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 (2):
 * Single equations (assignments): 2
 * 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 0.0001194/1.029, allocations: 188.2 kB / 1.17 GB, free: 15.21 MB / 0.9044 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 2.666e-05/1.029, allocations: 3.938 kB / 1.17 GB, free: 15.21 MB / 0.9044 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 3.943e-05/1.029, allocations: 7.469 kB / 1.17 GB, free: 15.2 MB / 0.9044 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.368e-06/1.029, allocations: 7.984 kB / 1.17 GB, free: 15.19 MB / 0.9044 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 5.971e-06/1.029, allocations: 0 / 1.17 GB, free: 15.19 MB / 0.9044 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.276e-06/1.029, allocations: 3.938 kB / 1.17 GB, free: 15.18 MB / 0.9044 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0002045/1.029, allocations: 165.6 kB / 1.171 GB, free: 14.97 MB / 0.9044 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 9.62e-07/1.029, allocations: 4 kB / 1.171 GB, free: 14.97 MB / 0.9044 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 8.068e-05/1.03, allocations: 15.98 kB / 1.171 GB, free: 14.95 MB / 0.9044 GB
Notification: Performance of postOpt tearingSystem (simulation): time 1.603e-06/1.03, allocations: 0 / 1.171 GB, free: 14.95 MB / 0.9044 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.025e-05/1.03, allocations: 3.984 kB / 1.171 GB, free: 14.95 MB / 0.9044 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.143e-06/1.03, allocations: 0 / 1.171 GB, free: 14.95 MB / 0.9044 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 9.52e-07/1.03, allocations: 0 / 1.171 GB, free: 14.95 MB / 0.9044 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0003574/1.03, allocations: 187.4 kB / 1.171 GB, free: 14.75 MB / 0.9044 GB
Notification: Performance of postOpt removeConstants (simulation): time 5.836e-05/1.03, allocations: 77.11 kB / 1.171 GB, free: 14.66 MB / 0.9044 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 1.866e-05/1.03, allocations: 4 kB / 1.171 GB, free: 14.65 MB / 0.9044 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 9.494e-05/1.03, allocations: 7.984 kB / 1.171 GB, free: 14.64 MB / 0.9044 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 3.834e-05/1.03, allocations: 3.984 kB / 1.171 GB, free: 14.64 MB / 0.9044 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 6.683e-06/1.03, allocations: 4 kB / 1.171 GB, free: 14.64 MB / 0.9044 GB
Notification: Performance of sorting global known variables: time 5.898e-05/1.03, allocations: 87.28 kB / 1.171 GB, free: 14.55 MB / 0.9044 GB
Notification: Performance of sort global known variables: time 1.81e-07/1.03, allocations: 4.031 kB / 1.171 GB, free: 14.55 MB / 0.9044 GB
Notification: Performance of remove unused functions: time 0.0002885/1.031, allocations: 8 kB / 1.171 GB, free: 14.54 MB / 0.9044 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 1
 * 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 (2):
 * Single equations (assignments): 2
 * 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 0.0008419/1.031, allocations: 0.7201 MB / 1.172 GB, free: 13.79 MB / 0.9044 GB
Notification: Performance of simCode: created initialization part: time 0.0005098/1.032, allocations: 87.84 kB / 1.172 GB, free: 13.71 MB / 0.9044 GB
Notification: Performance of simCode: created event and clocks part: time 2.114e-06/1.032, allocations: 0 / 1.172 GB, free: 13.71 MB / 0.9044 GB
Notification: Performance of simCode: created simulation system equations: time 0.000128/1.032, allocations: 24.09 kB / 1.172 GB, free: 13.68 MB / 0.9044 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0003165/1.032, allocations: 12.06 kB / 1.172 GB, free: 13.67 MB / 0.9044 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0005518/1.033, allocations: 151.1 kB / 1.172 GB, free: 13.48 MB / 0.9044 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0003729/1.033, allocations: 0.6807 MB / 1.173 GB, free: 12.78 MB / 0.9044 GB
Notification: Performance of simCode: alias equations: time 3.058e-05/1.033, allocations: 0 / 1.173 GB, free: 12.78 MB / 0.9044 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 5.373e-05/1.033, allocations: 15.44 kB / 1.173 GB, free: 12.76 MB / 0.9044 GB
Notification: Performance of SimCode: time 4.01e-07/1.033, allocations: 4 kB / 1.173 GB, free: 12.76 MB / 0.9044 GB
Notification: Performance of buildModelFMU: Generate the FMI files: time 0.02845/1.062, allocations: 1.48 MB / 1.174 GB, free: 11.37 MB / 0.9044 GB
Notification: Performance of buildModelFMU: Generate platform static: time 11.16/12.22, allocations: 18.5 kB / 1.174 GB, free: 11.35 MB / 0.9044 GB
(rm -f Buildings_10_Buildings.Controls.OBC.CDL.Reals.Validation.Limiter.pipe ; mkfifo Buildings_10_Buildings.Controls.OBC.CDL.Reals.Validation.Limiter.pipe ; head -c 1048576 < Buildings_10_Buildings.Controls.OBC.CDL.Reals.Validation.Limiter.pipe >> ../files/Buildings_10_Buildings.Controls.OBC.CDL.Reals.Validation.Limiter.sim & python3 -m fmpy simulate  --output-file Buildings_10_Buildings.Controls.OBC.CDL.Reals.Validation.Limiter_res.csv --start-time 0 --stop-time 1 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.0004 Buildings_10_Buildings_Controls_OBC_CDL_Reals_Validation_Limiter.fmu > Buildings_10_Buildings.Controls.OBC.CDL.Reals.Validation.Limiter.pipe 2>&1)
diffSimulationResults("Buildings_10_Buildings.Controls.OBC.CDL.Reals.Validation.Limiter_res.csv","/mnt/ReferenceFiles/Buildings/csv/maint_10.0.x/Buildings_Controls_OBC_CDL_Reals_Validation_Limiter.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_10_Buildings.Controls.OBC.CDL.Reals.Validation.Limiter.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001)
Reference file matches