Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr ScalableTestSuite_noopt_ScalableTestSuite.Thermal.Advection.ScaledExperiments.AdvectionReaction_N_200.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/ScalableTestSuite 2.2.0-master/package.mo", uses=false) Using package ScalableTestSuite with version 2.2.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ScalableTestSuite 2.2.0-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(ScalableTestSuite.Thermal.Advection.ScaledExperiments.AdvectionReaction_N_200,tolerance=1e-06,outputFormat="mat",numberOfIntervals=500,variableFilter="der.u.1..|der.u.200..|der.u.2..|der.u.3..|der.u.4..|der.u.5..|time|time|u.1.|u.200.|u.2.|u.3.|u.4.|u.5.",fileNamePrefix="ScalableTestSuite_noopt_ScalableTestSuite.Thermal.Advection.ScaledExperiments.AdvectionReaction_N_200") translateModel(ScalableTestSuite.Thermal.Advection.ScaledExperiments.AdvectionReaction_N_200,tolerance=1e-06,outputFormat="mat",numberOfIntervals=500,variableFilter="der.u.1..|der.u.200..|der.u.2..|der.u.3..|der.u.4..|der.u.5..|time|time|u.1.|u.200.|u.2.|u.3.|u.4.|u.5.",fileNamePrefix="ScalableTestSuite_noopt_ScalableTestSuite.Thermal.Advection.ScaledExperiments.AdvectionReaction_N_200") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0008399/0.0008399, allocations: 85.28 kB / 16.31 MB, free: 6.449 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.0009319/0.000932, allocations: 183.9 kB / 17.21 MB, free: 6.316 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.139/1.139, allocations: 223.3 MB / 241.2 MB, free: 5.262 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ScalableTestSuite 2.2.0-master/package.mo): time 0.6293/0.6293, allocations: 120.5 MB / 412.8 MB, free: 12.08 MB / 350.1 MB Notification: Performance of FrontEnd - loaded program: time 0.0002464/0.0002464, allocations: 8 kB / 0.4943 GB, free: 11.06 MB / 366.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1186/0.1189, allocations: 82.84 MB / 0.5752 GB, free: 8.086 MB / 446.1 MB Notification: Performance of NFInst.instantiate(ScalableTestSuite.Thermal.Advection.ScaledExperiments.AdvectionReaction_N_200): time 0.0004902/0.1194, allocations: 246.2 kB / 0.5754 GB, free: 7.848 MB / 446.1 MB Notification: Performance of NFInst.instExpressions: time 0.0001314/0.1195, allocations: 19.97 kB / 0.5754 GB, free: 7.828 MB / 446.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 2.117e-05/0.1196, allocations: 4 kB / 0.5754 GB, free: 7.824 MB / 446.1 MB Notification: Performance of NFTyping.typeComponents: time 6.092e-05/0.1196, allocations: 3.938 kB / 0.5754 GB, free: 7.82 MB / 446.1 MB Notification: Performance of NFTyping.typeBindings: time 1.701e-05/0.1196, allocations: 4 kB / 0.5754 GB, free: 7.816 MB / 446.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.0001255/0.1198, allocations: 11.98 kB / 0.5754 GB, free: 7.805 MB / 446.1 MB Notification: Performance of NFFlatten.flatten: time 0.001355/0.1211, allocations: 1.626 MB / 0.577 GB, free: 6.176 MB / 446.1 MB Notification: Performance of NFFlatten.resolveConnections: time 4.423e-05/0.1212, allocations: 8 kB / 0.577 GB, free: 6.168 MB / 446.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0007017/0.1219, allocations: 0.8229 MB / 0.5778 GB, free: 5.344 MB / 446.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.001178/0.1231, allocations: 1.014 MB / 0.5788 GB, free: 4.328 MB / 446.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0001818/0.1233, allocations: 88 kB / 0.5789 GB, free: 4.242 MB / 446.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.0001719/0.1235, allocations: 88 kB / 0.579 GB, free: 4.156 MB / 446.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0004053/0.1239, allocations: 470.9 kB / 0.5795 GB, free: 3.695 MB / 446.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0001622/0.124, allocations: 125.4 kB / 0.5796 GB, free: 3.566 MB / 446.1 MB Notification: Performance of NFConvertDAE.convert: time 0.0005251/0.1246, allocations: 0.7563 MB / 0.5803 GB, free: 2.809 MB / 446.1 MB Notification: Performance of FrontEnd - DAE generated: time 3.757e-06/0.1246, allocations: 0 / 0.5803 GB, free: 2.809 MB / 446.1 MB Notification: Performance of FrontEnd: time 1.252e-06/0.1246, allocations: 11.94 kB / 0.5803 GB, free: 2.797 MB / 446.1 MB Notification: Performance of Transformations before backend: time 6.382e-06/0.1246, allocations: 0 / 0.5803 GB, free: 2.797 MB / 446.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 201 * Number of variables: 201 Notification: Performance of Generate backend data structure: time 0.3795/0.5041, allocations: 3.055 MB / 0.5833 GB, free: 14.22 MB / 446.3 MB Notification: Performance of prepare preOptimizeDAE: time 3.235e-05/0.5041, allocations: 8.875 kB / 0.5833 GB, free: 14.22 MB / 446.3 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0004646/0.5046, allocations: 83.7 kB / 0.5834 GB, free: 14.18 MB / 446.3 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0007324/0.5054, allocations: 485.3 kB / 0.5839 GB, free: 13.94 MB / 446.3 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 5.402e-05/0.5054, allocations: 59.53 kB / 0.5839 GB, free: 13.94 MB / 446.3 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0003126/0.5057, allocations: 173.1 kB / 0.5841 GB, free: 13.91 MB / 446.3 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002534/0.5083, allocations: 1.701 MB / 0.5857 GB, free: 13.83 MB / 446.3 MB Notification: Performance of preOpt findStateOrder (simulation): time 2.295e-05/0.5083, allocations: 0 / 0.5857 GB, free: 13.83 MB / 446.3 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001304/0.5084, allocations: 30.72 kB / 0.5858 GB, free: 13.83 MB / 446.3 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.906e-05/0.5085, allocations: 19.31 kB / 0.5858 GB, free: 13.83 MB / 446.3 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001717/0.5102, allocations: 1.099 MB / 0.5869 GB, free: 13.81 MB / 446.3 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.002735/0.5129, allocations: 1.877 MB / 0.5887 GB, free: 13.19 MB / 446.3 MB Notification: Performance of preOpt comSubExp (simulation): time 0.005104/0.5181, allocations: 3.673 MB / 0.5923 GB, free: 12.15 MB / 446.3 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.001558/0.5196, allocations: 1.173 MB / 0.5934 GB, free: 11.84 MB / 446.3 MB Notification: Performance of preOpt evalFunc (simulation): time 0.0002216/0.5198, allocations: 20.94 kB / 0.5934 GB, free: 11.84 MB / 446.3 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.067e-05/0.5199, allocations: 55.47 kB / 0.5935 GB, free: 11.78 MB / 446.3 MB Notification: Performance of pre-optimization done (n=200): time 2.635e-06/0.5199, allocations: 0 / 0.5935 GB, free: 11.78 MB / 446.3 MB Notification: Performance of matching and sorting (n=200): time 0.005322/0.5252, allocations: 3.773 MB / 0.5972 GB, free: 10.72 MB / 446.3 MB Notification: Performance of inlineWhenForInitialization (initialization): time 3.087e-05/0.5252, allocations: 73.62 kB / 0.5973 GB, free: 10.66 MB / 446.3 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 5.022e-05/0.5253, allocations: 101.2 kB / 0.5973 GB, free: 10.56 MB / 446.3 MB Notification: Performance of collectPreVariables (initialization): time 0.0001116/0.5254, allocations: 65.02 kB / 0.5974 GB, free: 10.5 MB / 446.3 MB Notification: Performance of collectInitialEqns (initialization): time 2.182e-05/0.5254, allocations: 83.3 kB / 0.5975 GB, free: 10.41 MB / 446.3 MB Notification: Performance of collectInitialBindings (initialization): time 0.0004305/0.5259, allocations: 0.9314 MB / 0.5984 GB, free: 9.688 MB / 446.3 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001654/0.5261, allocations: 60.59 kB / 0.5985 GB, free: 9.641 MB / 446.3 MB Notification: Performance of setup shared object (initialization): time 0.0001088/0.5262, allocations: 443.9 kB / 0.5989 GB, free: 9.273 MB / 446.3 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.002137/0.5283, allocations: 1.67 MB / 0.6005 GB, free: 8.863 MB / 446.3 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.00238/0.5307, allocations: 1.899 MB / 0.6024 GB, free: 8.199 MB / 446.3 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.002384/0.5331, allocations: 1.944 MB / 0.6043 GB, free: 7.293 MB / 446.3 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.671e-06/0.5331, allocations: 0 / 0.6043 GB, free: 7.293 MB / 446.3 MB Notification: Performance of matching and sorting (n=401) (initialization): time 0.005088/0.5382, allocations: 4.141 MB / 0.6083 GB, free: 5.426 MB / 446.3 MB Notification: Performance of prepare postOptimizeDAE: time 1.66e-05/0.5382, allocations: 7.625 kB / 0.6083 GB, free: 5.426 MB / 446.3 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.458e-06/0.5382, allocations: 0 / 0.6083 GB, free: 5.426 MB / 446.3 MB Notification: Performance of postOpt tearingSystem (initialization): time 2.161e-05/0.5383, allocations: 15.2 kB / 0.6083 GB, free: 5.422 MB / 446.3 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00283/0.5411, allocations: 0.7869 MB / 0.6091 GB, free: 5.234 MB / 446.3 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.917e-05/0.5411, allocations: 11.25 kB / 0.6091 GB, free: 5.234 MB / 446.3 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0013/0.5424, allocations: 415.8 kB / 0.6095 GB, free: 4.984 MB / 446.3 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001616/0.5426, allocations: 88.09 kB / 0.6096 GB, free: 4.961 MB / 446.3 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 2 * 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 (401): * Single equations (assignments): 401 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.000381/0.543, allocations: 320.8 kB / 0.6099 GB, free: 4.707 MB / 446.3 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001653/0.5431, allocations: 76.53 kB / 0.61 GB, free: 4.676 MB / 446.3 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001028/0.5442, allocations: 350.9 kB / 0.6103 GB, free: 4.328 MB / 446.3 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 9.468e-06/0.5442, allocations: 20.22 kB / 0.6103 GB, free: 4.328 MB / 446.3 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.093e-05/0.5442, allocations: 3.953 kB / 0.6103 GB, free: 4.324 MB / 446.3 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.441e-05/0.5442, allocations: 11.95 kB / 0.6103 GB, free: 4.312 MB / 446.3 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001674/0.5459, allocations: 1.406 MB / 0.6117 GB, free: 3.543 MB / 446.3 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.409e-06/0.5459, allocations: 1.812 kB / 0.6117 GB, free: 3.543 MB / 446.3 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003184/0.5491, allocations: 0.5628 MB / 0.6123 GB, free: 3.375 MB / 446.3 MB Notification: Performance of postOpt tearingSystem (simulation): time 8.647e-06/0.5491, allocations: 9.625 kB / 0.6123 GB, free: 3.375 MB / 446.3 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0002352/0.5494, allocations: 122.9 kB / 0.6124 GB, free: 3.316 MB / 446.3 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 9.407e-06/0.5494, allocations: 11.27 kB / 0.6124 GB, free: 3.312 MB / 446.3 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 9.92e-07/0.5494, allocations: 0 / 0.6124 GB, free: 3.312 MB / 446.3 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.004171/0.5536, allocations: 3.708 MB / 0.616 GB, free: 15.72 MB / 462.3 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0006294/0.5542, allocations: 419.5 kB / 0.6164 GB, free: 15.3 MB / 462.3 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002973/0.5545, allocations: 107.9 kB / 0.6165 GB, free: 15.19 MB / 462.3 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001386/0.5559, allocations: 233.1 kB / 0.6167 GB, free: 15.01 MB / 462.3 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002491/0.5562, allocations: 117.8 kB / 0.6169 GB, free: 14.9 MB / 462.3 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001502/0.5563, allocations: 59.41 kB / 0.6169 GB, free: 14.84 MB / 462.3 MB Notification: Performance of sorting global known variables: time 3.277e-05/0.5564, allocations: 94.98 kB / 0.617 GB, free: 14.75 MB / 462.3 MB Notification: Performance of sort global known variables: time 9e-08/0.5564, allocations: 0 / 0.617 GB, free: 14.75 MB / 462.3 MB Notification: Performance of remove unused functions: time 0.0008506/0.5572, allocations: 0.5195 MB / 0.6175 GB, free: 14.23 MB / 462.3 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 200 (u[1],u[2],u[3],u[4],u[5],u[6],u[7],u[8],u[9],u[10],u[11],u[12],u[13],u[14],u[15],u[16],u[17],u[18],u[19],u[20],u[21],u[22],u[23],u[24],u[25],u[26],u[27],u[28],u[29],u[30],u[31],u[32],u[33],u[34],u[35],u[36],u[37],u[38],u[39],u[40],u[41],u[42],u[43],u[44],u[45],u[46],u[47],u[48],u[49],u[50],u[51],u[52],u[53],u[54],u[55],u[56],u[57],u[58],u[59],u[60],u[61],u[62],u[63],u[64],u[65],u[66],u[67],u[68],u[69],u[70],u[71],u[72],u[73],u[74],u[75],u[76],u[77],u[78],u[79],u[80],u[81],u[82],u[83],u[84],u[85],u[86],u[87],u[88],u[89],u[90],u[91],u[92],u[93],u[94],u[95],u[96],u[97],u[98],u[99],u[100],u[101],u[102],u[103],u[104],u[105],u[106],u[107],u[108],u[109],u[110],u[111],u[112],u[113],u[114],u[115],u[116],u[117],u[118],u[119],u[120],u[121],u[122],u[123],u[124],u[125],u[126],u[127],u[128],u[129],u[130],u[131],u[132],u[133],u[134],u[135],u[136],u[137],u[138],u[139],u[140],u[141],u[142],u[143],u[144],u[145],u[146],u[147],u[148],u[149],u[150],u[151],u[152],u[153],u[154],u[155],u[156],u[157],u[158],u[159],u[160],u[161],u[162],u[163],u[164],u[165],u[166],u[167],u[168],u[169],u[170],u[171],u[172],u[173],u[174],u[175],u[176],u[177],u[178],u[179],u[180],u[181],u[182],u[183],u[184],u[185],u[186],u[187],u[188],u[189],u[190],u[191],u[192],u[193],u[194],u[195],u[196],u[197],u[198],u[199],u[200]) * 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 (200): * Single equations (assignments): 200 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.0003379/0.5576, allocations: 263.1 kB / 0.6178 GB, free: 13.98 MB / 462.3 MB Notification: Performance of simCode: created initialization part: time 0.004285/0.5619, allocations: 3.338 MB / 0.621 GB, free: 10.65 MB / 462.3 MB Notification: Performance of simCode: created event and clocks part: time 2.294e-06/0.5619, allocations: 0 / 0.621 GB, free: 10.65 MB / 462.3 MB Notification: Performance of simCode: created simulation system equations: time 0.001819/0.5637, allocations: 1.358 MB / 0.6223 GB, free: 9.289 MB / 462.3 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0004841/0.5642, allocations: 68 kB / 0.6224 GB, free: 9.223 MB / 462.3 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.00447/0.5687, allocations: 6.1 MB / 0.6284 GB, free: 3.113 MB / 462.3 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005555/0.5692, allocations: 1.156 MB / 0.6295 GB, free: 1.93 MB / 462.3 MB Notification: Performance of simCode: alias equations: time 0.0028/0.572, allocations: 1.018 MB / 0.6305 GB, free: 0.9727 MB / 462.3 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0007698/0.5728, allocations: 95.44 kB / 0.6306 GB, free: 0.8789 MB / 462.3 MB Notification: Performance of SimCode: time 3.41e-07/0.5728, allocations: 4 kB / 0.6306 GB, free: 0.875 MB / 462.3 MB Notification: Performance of Templates: time 0.02135/0.5942, allocations: 17.8 MB / 0.648 GB, free: 15.11 MB / 494.3 MB make -j1 -f ScalableTestSuite_noopt_ScalableTestSuite.Thermal.Advection.ScaledExperiments.AdvectionReaction_N_200.makefile (rm -f ScalableTestSuite_noopt_ScalableTestSuite.Thermal.Advection.ScaledExperiments.AdvectionReaction_N_200.pipe ; mkfifo ScalableTestSuite_noopt_ScalableTestSuite.Thermal.Advection.ScaledExperiments.AdvectionReaction_N_200.pipe ; head -c 1048576 < ScalableTestSuite_noopt_ScalableTestSuite.Thermal.Advection.ScaledExperiments.AdvectionReaction_N_200.pipe >> ../files/ScalableTestSuite_noopt_ScalableTestSuite.Thermal.Advection.ScaledExperiments.AdvectionReaction_N_200.sim & ./ScalableTestSuite_noopt_ScalableTestSuite.Thermal.Advection.ScaledExperiments.AdvectionReaction_N_200 -abortSlowSimulation -alarm=300 -emit_protected -lv LOG_STATS > ScalableTestSuite_noopt_ScalableTestSuite.Thermal.Advection.ScaledExperiments.AdvectionReaction_N_200.pipe 2>&1) diffSimulationResults("ScalableTestSuite_noopt_ScalableTestSuite.Thermal.Advection.ScaledExperiments.AdvectionReaction_N_200_res.mat","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/ReferenceFiles/ScalableTestSuite/ScalableTestSuite.Thermal.Advection.ScaledExperiments.AdvectionReaction_N_200_res.mat","../files/ScalableTestSuite_noopt_ScalableTestSuite.Thermal.Advection.ScaledExperiments.AdvectionReaction_N_200.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches