Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctColdDuctMin.Subsequences.Validation.Overrides.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.OBC.ASHRAE.G36.TerminalUnits.DualDuctColdDuctMin.Subsequences.Validation.Overrides,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|ove.oveFloSet|ove.VActSet_flow|ove.VMin_flow|ove.VCooMax_flow|ove.VSet_flow|ove.oveCooDamPos|ove.uCooDam|ove.yCooDam|ove.oveHeaDamPos|ove.uHeaDam|ove.yHeaDam",fileNamePrefix="Buildings_latest_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctColdDuctMin.Subsequences.Validation.Overrides")
translateModel(Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctColdDuctMin.Subsequences.Validation.Overrides,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|ove.oveFloSet|ove.VActSet_flow|ove.VMin_flow|ove.VCooMax_flow|ove.VSet_flow|ove.oveCooDamPos|ove.uCooDam|ove.yCooDam|ove.oveHeaDamPos|ove.uHeaDam|ove.yHeaDam",fileNamePrefix="Buildings_latest_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctColdDuctMin.Subsequences.Validation.Overrides")
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001408/0.001408, allocations: 112.6 kB / 16.37 MB, free: 6 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001285/0.001285, allocations: 196 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 1.417/1.417, allocations: 222.9 MB / 241 MB, free: 15.2 MB / 206.1 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.0.0-master/package.mo): time 2.688/2.688, allocations: 442.6 MB / 0.7165 GB, free: 14.68 MB / 0.5919 GB
Notification: Performance of FrontEnd - loaded program: time 0.00159/0.001591, allocations: 68.59 kB / 0.8774 GB, free: 10.93 MB / 0.6544 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.3604/0.362, allocations: 153 MB / 1.027 GB, free: 2.016 MB / 0.795 GB
Notification: Performance of NFInst.instantiate(Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctColdDuctMin.Subsequences.Validation.Overrides): time 0.004531/0.3666, allocations: 1.756 MB / 1.029 GB, free: 264 kB / 0.795 GB
Notification: Performance of NFInst.instExpressions: time 0.00228/0.3689, allocations: 1.162 MB / 1.03 GB, free: 15.08 MB / 0.8106 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.000448/0.3694, allocations: 8 kB / 1.03 GB, free: 15.07 MB / 0.8106 GB
Notification: Performance of NFTyping.typeComponents: time 0.0001608/0.3695, allocations: 59.2 kB / 1.03 GB, free: 15.02 MB / 0.8106 GB
Notification: Performance of NFTyping.typeBindings: time 0.0002148/0.3698, allocations: 55.34 kB / 1.03 GB, free: 14.96 MB / 0.8106 GB
Notification: Performance of NFTyping.typeClassSections: time 0.0004398/0.3703, allocations: 179.8 kB / 1.03 GB, free: 14.79 MB / 0.8106 GB
Notification: Performance of NFFlatten.flatten: time 0.0005312/0.3708, allocations: 0.5049 MB / 1.03 GB, free: 14.28 MB / 0.8106 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.0005094/0.3713, allocations: 280.7 kB / 1.031 GB, free: 14 MB / 0.8106 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.000289/0.3716, allocations: 199.3 kB / 1.031 GB, free: 13.8 MB / 0.8106 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.0002936/0.3719, allocations: 250.8 kB / 1.031 GB, free: 13.56 MB / 0.8106 GB
Notification: Performance of NFPackage.collectConstants: time 9.207e-05/0.372, allocations: 56 kB / 1.031 GB, free: 13.5 MB / 0.8106 GB
Notification: Performance of NFFlatten.collectFunctions: time 7.093e-05/0.3721, allocations: 64 kB / 1.031 GB, free: 13.44 MB / 0.8106 GB
Notification: Performance of NFScalarize.scalarize: time 0.000113/0.3722, allocations: 119.6 kB / 1.031 GB, free: 13.32 MB / 0.8106 GB
Notification: Performance of NFVerifyModel.verify: time 0.0002016/0.3724, allocations: 238.7 kB / 1.032 GB, free: 13.09 MB / 0.8106 GB
Notification: Performance of NFConvertDAE.convert: time 0.0007378/0.3732, allocations: 0.6966 MB / 1.032 GB, free: 12.39 MB / 0.8106 GB
Notification: Performance of FrontEnd - DAE generated: time 7.764e-06/0.3732, allocations: 0 / 1.032 GB, free: 12.39 MB / 0.8106 GB
Notification: Performance of FrontEnd: time 2.345e-06/0.3732, allocations: 0 / 1.032 GB, free: 12.39 MB / 0.8106 GB
Notification: Performance of Transformations before backend: time 9.948e-06/0.3732, allocations: 0 / 1.032 GB, free: 12.39 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: 117
 * Number of variables: 117
Notification: Performance of Generate backend data structure: time 0.00142/0.3747, allocations: 0.7563 MB / 1.033 GB, free: 11.58 MB / 0.8106 GB
Notification: Performance of prepare preOptimizeDAE: time 5.017e-05/0.3747, allocations: 8.031 kB / 1.033 GB, free: 11.57 MB / 0.8106 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0001148/0.3749, allocations: 56.28 kB / 1.033 GB, free: 11.52 MB / 0.8106 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.00114/0.376, allocations: 491.8 kB / 1.034 GB, free: 11 MB / 0.8106 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 5.575e-05/0.3761, allocations: 41.36 kB / 1.034 GB, free: 10.96 MB / 0.8106 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 6.542e-05/0.3762, allocations: 44.38 kB / 1.034 GB, free: 10.92 MB / 0.8106 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.001068/0.3772, allocations: 0.4986 MB / 1.034 GB, free: 10.41 MB / 0.8106 GB
Notification: Performance of preOpt findStateOrder (simulation): time 1.668e-05/0.3773, allocations: 192 / 1.034 GB, free: 10.41 MB / 0.8106 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 5.507e-05/0.3773, allocations: 23.94 kB / 1.034 GB, free: 10.38 MB / 0.8106 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.785e-05/0.3773, allocations: 12 kB / 1.034 GB, free: 10.37 MB / 0.8106 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.00117/0.3785, allocations: 425.9 kB / 1.035 GB, free: 9.957 MB / 0.8106 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001839/0.3804, allocations: 1.247 MB / 1.036 GB, free: 8.648 MB / 0.8106 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.000924/0.3813, allocations: 411.7 kB / 1.036 GB, free: 8.219 MB / 0.8106 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0005628/0.3819, allocations: 222.4 kB / 1.036 GB, free: 7.992 MB / 0.8106 GB
Notification: Performance of preOpt evalFunc (simulation): time 5.108e-05/0.3819, allocations: 4 kB / 1.036 GB, free: 7.988 MB / 0.8106 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.371e-05/0.382, allocations: 54.48 kB / 1.036 GB, free: 7.926 MB / 0.8106 GB
Notification: Performance of pre-optimization done (n=41): time 3.757e-06/0.382, allocations: 0 / 1.036 GB, free: 7.926 MB / 0.8106 GB
Notification: Performance of matching and sorting (n=41): time 0.001815/0.3838, allocations: 0.5689 MB / 1.037 GB, free: 7.352 MB / 0.8106 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 7.457e-05/0.3839, allocations: 118.7 kB / 1.037 GB, free: 7.211 MB / 0.8106 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0003271/0.3842, allocations: 282.7 kB / 1.037 GB, free: 6.93 MB / 0.8106 GB
Notification: Performance of collectPreVariables (initialization): time 3.411e-05/0.3843, allocations: 29.7 kB / 1.037 GB, free: 6.895 MB / 0.8106 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0001664/0.3844, allocations: 220.2 kB / 1.038 GB, free: 6.672 MB / 0.8106 GB
Notification: Performance of collectInitialBindings (initialization): time 0.0001003/0.3846, allocations: 118.3 kB / 1.038 GB, free: 6.555 MB / 0.8106 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001489/0.3847, allocations: 94.11 kB / 1.038 GB, free: 6.457 MB / 0.8106 GB
Notification: Performance of setup shared object (initialization): time 0.0001263/0.3848, allocations: 342.8 kB / 1.038 GB, free: 6.113 MB / 0.8106 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0005078/0.3854, allocations: 164.7 kB / 1.038 GB, free: 5.953 MB / 0.8106 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0005512/0.3859, allocations: 249.7 kB / 1.039 GB, free: 5.68 MB / 0.8106 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.00105/0.387, allocations: 403.7 kB / 1.039 GB, free: 5.254 MB / 0.8106 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.807e-06/0.387, allocations: 0 / 1.039 GB, free: 5.254 MB / 0.8106 GB
Notification: Performance of matching and sorting (n=49) (initialization): time 0.001224/0.3882, allocations: 471 kB / 1.039 GB, free: 4.789 MB / 0.8106 GB
Notification: Performance of prepare postOptimizeDAE: time 2.391e-05/0.3883, allocations: 4 kB / 1.039 GB, free: 4.785 MB / 0.8106 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.078e-05/0.3883, allocations: 4 kB / 1.039 GB, free: 4.781 MB / 0.8106 GB
Notification: Performance of postOpt tearingSystem (initialization): time 2.266e-05/0.3883, allocations: 7.984 kB / 1.039 GB, free: 4.773 MB / 0.8106 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004833/0.3888, allocations: 99.73 kB / 1.039 GB, free: 4.676 MB / 0.8106 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.081e-05/0.3888, allocations: 4 kB / 1.039 GB, free: 4.672 MB / 0.8106 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0003133/0.3891, allocations: 67.73 kB / 1.04 GB, free: 4.605 MB / 0.8106 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.467e-05/0.3892, allocations: 19.98 kB / 1.04 GB, free: 4.586 MB / 0.8106 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 11
 * Number of states: 0 ()
 * Number of discrete variables: 24 (reaToInt2.y,ove.or5.y,ove.or1.y,ove.forMinFlo1.y,ove.or3.y,ove.forMinFlo.y,ove.forCooMax.y,ove.forZerFlo.y,reaToInt1.y,ove.or2.y,ove.intEqu4.y,ove.intEqu3.y,reaToInt3.y,ove.or4.y,ove.intEqu2.y,ove.intEqu1.y,ove.conInt7.y,ove.conInt6.y,ove.conInt4.y,ove.conInt3.y,ove.conInt5.y,ove.conInt2.y,ove.conInt1.y,ove.conInt.y)
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (49):
 * Single equations (assignments): 49
 * 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 0.0002731/0.3894, allocations: 181.6 kB / 1.04 GB, free: 4.398 MB / 0.8106 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001079/0.3896, allocations: 31.62 kB / 1.04 GB, free: 4.367 MB / 0.8106 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 8.824e-05/0.3897, allocations: 42.2 kB / 1.04 GB, free: 4.328 MB / 0.8106 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 9.898e-06/0.3897, allocations: 11.94 kB / 1.04 GB, free: 4.316 MB / 0.8106 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 8.165e-06/0.3897, allocations: 0 / 1.04 GB, free: 4.316 MB / 0.8106 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 9.899e-06/0.3897, allocations: 3.984 kB / 1.04 GB, free: 4.312 MB / 0.8106 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.00064/0.3904, allocations: 457.1 kB / 1.04 GB, free: 3.816 MB / 0.8106 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.856e-06/0.3904, allocations: 0 / 1.04 GB, free: 3.816 MB / 0.8106 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0004256/0.3908, allocations: 83.86 kB / 1.04 GB, free: 3.734 MB / 0.8106 GB
Notification: Performance of postOpt tearingSystem (simulation): time 3.857e-06/0.3908, allocations: 0 / 1.04 GB, free: 3.734 MB / 0.8106 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.772e-05/0.3908, allocations: 12 kB / 1.04 GB, free: 3.723 MB / 0.8106 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 5.51e-06/0.3909, allocations: 7.938 kB / 1.04 GB, free: 3.715 MB / 0.8106 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.137e-06/0.3909, allocations: 3.984 kB / 1.04 GB, free: 3.711 MB / 0.8106 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.00122/0.3921, allocations: 0.6612 MB / 1.041 GB, free: 3.031 MB / 0.8106 GB
Notification: Performance of postOpt removeConstants (simulation): time 8.639e-05/0.3922, allocations: 112.6 kB / 1.041 GB, free: 2.902 MB / 0.8106 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 4.364e-05/0.3922, allocations: 4 kB / 1.041 GB, free: 2.898 MB / 0.8106 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003623/0.3926, allocations: 43.89 kB / 1.041 GB, free: 2.855 MB / 0.8106 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001758/0.3928, allocations: 67.92 kB / 1.041 GB, free: 2.789 MB / 0.8106 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.653e-05/0.3928, allocations: 8 kB / 1.041 GB, free: 2.781 MB / 0.8106 GB
Notification: Performance of sorting global known variables: time 0.0001767/0.393, allocations: 178 kB / 1.041 GB, free: 2.605 MB / 0.8106 GB
Notification: Performance of sort global known variables: time 1.5e-07/0.393, allocations: 3.938 kB / 1.041 GB, free: 2.602 MB / 0.8106 GB
Notification: Performance of remove unused functions: time 0.0004673/0.3935, allocations: 91.59 kB / 1.041 GB, free: 2.512 MB / 0.8106 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 3
 * Number of states: 0 ()
 * Number of discrete variables: 16 (ove.forZerFlo.y,ove.forCooMax.y,ove.forMinFlo.y,ove.or3.y,ove.forMinFlo1.y,ove.or1.y,ove.or5.y,reaToInt2.y,ove.intEqu3.y,ove.intEqu4.y,ove.or2.y,reaToInt1.y,ove.intEqu1.y,ove.intEqu2.y,ove.or4.y,reaToInt3.y)
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for simulation (41):
 * Single equations (assignments): 41
 * 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 0.0001785/0.3937, allocations: 120.7 kB / 1.042 GB, free: 2.383 MB / 0.8106 GB
Notification: Performance of simCode: created initialization part: time 0.001234/0.3949, allocations: 419.7 kB / 1.042 GB, free: 1.973 MB / 0.8106 GB
Notification: Performance of simCode: created event and clocks part: time 4.468e-06/0.3949, allocations: 0 / 1.042 GB, free: 1.973 MB / 0.8106 GB
Notification: Performance of simCode: created simulation system equations: time 0.0006305/0.3956, allocations: 243.9 kB / 1.042 GB, free: 1.734 MB / 0.8106 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.000571/0.3961, allocations: 48.86 kB / 1.042 GB, free: 1.684 MB / 0.8106 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001318/0.3975, allocations: 0.683 MB / 1.043 GB, free: 0.9688 MB / 0.8106 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004242/0.3979, allocations: 0.8115 MB / 1.044 GB, free: 124 kB / 0.8106 GB
Notification: Performance of simCode: alias equations: time 0.0002462/0.3982, allocations: 63.25 kB / 1.044 GB, free: 64 kB / 0.8106 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001307/0.3983, allocations: 43.42 kB / 1.044 GB, free: 20 kB / 0.8106 GB
Notification: Performance of SimCode: time 7.71e-07/0.3983, allocations: 0 / 1.044 GB, free: 20 kB / 0.8106 GB
Notification: Performance of Templates: time 0.008787/0.4071, allocations: 3.909 MB / 1.048 GB, free: 12.18 MB / 0.8262 GB
make -j1 -f Buildings_latest_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctColdDuctMin.Subsequences.Validation.Overrides.makefile
(rm -f Buildings_latest_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctColdDuctMin.Subsequences.Validation.Overrides.pipe ; mkfifo Buildings_latest_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctColdDuctMin.Subsequences.Validation.Overrides.pipe ; head -c 1048576 < Buildings_latest_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctColdDuctMin.Subsequences.Validation.Overrides.pipe >> ../files/Buildings_latest_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctColdDuctMin.Subsequences.Validation.Overrides.sim & ./Buildings_latest_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctColdDuctMin.Subsequences.Validation.Overrides  -abortSlowSimulation -alarm=480 -s cvode -emit_protected -lv LOG_STATS > Buildings_latest_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctColdDuctMin.Subsequences.Validation.Overrides.pipe 2>&1)
diffSimulationResults("Buildings_latest_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctColdDuctMin.Subsequences.Validation.Overrides_res.mat","/mnt/ReferenceFiles/Buildings/csv/master/Buildings_Controls_OBC_ASHRAE_G36_TerminalUnits_DualDuctColdDuctMin_Subsequences_Validation_Overrides.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_latest_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctColdDuctMin.Subsequences.Validation.Overrides.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001)
Reference file matches