Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.Channel.kc_evenGapLaminar.conf.json
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices trunk/package.mo", uses=false)
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex trunk/package.mo", uses=false)
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica trunk/package.mo", uses=false)
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest trunk/package.mo", uses=false)
Using package ModelicaTest with version trunk (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest trunk/package.mo)
Using package Modelica with version trunk (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica trunk/package.mo)
Using package Complex with version trunk (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex trunk/package.mo)
Using package ModelicaServices with version trunk (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices trunk/package.mo)
Running command: translateModel(ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.Channel.kc_evenGapLaminar,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|dimlesslength|abscissa.1.|abscissa.2.|abscissa.3.|length|Pr.1.|Pr.2.|Pr.3.|Re.1.|Re.2.|Re.3.|velocity.1.|velocity.2.|velocity.3.|cp.1.|cp.2.|cp.3.|eta.1.|eta.2.|eta.3.|lambda.1.|lambda.2.|lambda.3.|rho.1.|rho.2.|rho.3.|Nu_1.1.|Nu_1.2.|Nu_1.3.|Nu_2.1.|Nu_2.2.|Nu_2.3.|Nu_3.1.|Nu_3.2.|Nu_3.3.|Nu_4.1.|Nu_4.2.|Nu_4.3.|m_flow.1.|m_flow.2.|m_flow.3.",fileNamePrefix="ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.Channel.kc_evenGapLaminar")
translateModel(ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.Channel.kc_evenGapLaminar,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|dimlesslength|abscissa.1.|abscissa.2.|abscissa.3.|length|Pr.1.|Pr.2.|Pr.3.|Re.1.|Re.2.|Re.3.|velocity.1.|velocity.2.|velocity.3.|cp.1.|cp.2.|cp.3.|eta.1.|eta.2.|eta.3.|lambda.1.|lambda.2.|lambda.3.|rho.1.|rho.2.|rho.3.|Nu_1.1.|Nu_1.2.|Nu_1.3.|Nu_2.1.|Nu_2.2.|Nu_2.3.|Nu_3.1.|Nu_3.2.|Nu_3.3.|Nu_4.1.|Nu_4.2.|Nu_4.3.|m_flow.1.|m_flow.2.|m_flow.3.",fileNamePrefix="ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.Channel.kc_evenGapLaminar")
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices trunk/package.mo): time 0.001045/0.001045, allocations: 93.45 kB / 17.35 MB, free: 6.344 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex trunk/package.mo): time 0.001575/0.001575, allocations: 205.2 kB / 18.28 MB, free: 5.477 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica trunk/package.mo): time 1.405/1.405, allocations: 227.7 MB / 246.8 MB, free: 11.49 MB / 206.1 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest trunk/package.mo): time 0.2197/0.2197, allocations: 46.19 MB / 345.2 MB, free: 11.4 MB / 286.1 MB
Notification: Performance of FrontEnd - loaded program: time 0.0002412/0.0002412, allocations: 8 kB / 419.5 MB, free: 19.72 MB / 302.1 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1137/0.114, allocations: 63.56 MB / 483.1 MB, free: 4.137 MB / 350.1 MB
Notification: Performance of NFInst.instantiate(ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.Channel.kc_evenGapLaminar): time 0.002127/0.1161, allocations: 1.672 MB / 484.8 MB, free: 2.445 MB / 350.1 MB
Notification: Performance of NFInst.instExpressions: time 0.001711/0.1179, allocations: 1.149 MB / 485.9 MB, free: 1.293 MB / 350.1 MB
Notification: Performance of NFInst.updateImplicitVariability: time 7.47e-05/0.118, allocations: 0 / 485.9 MB, free: 1.293 MB / 350.1 MB
Notification: Performance of NFTyping.typeComponents: time 0.000273/0.1182, allocations: 67.7 kB / 486 MB, free: 1.227 MB / 350.1 MB
Notification: Performance of NFTyping.typeBindings: time 0.0002371/0.1185, allocations: 95.47 kB / 486.1 MB, free: 1.133 MB / 350.1 MB
Notification: Performance of NFTyping.typeClassSections: time 0.0003786/0.1189, allocations: 127.6 kB / 486.2 MB, free: 1.008 MB / 350.1 MB
Notification: Performance of NFFlatten.flatten: time 0.000557/0.1194, allocations: 0.5835 MB / 486.8 MB, free: 432 kB / 350.1 MB
Notification: Performance of NFFlatten.resolveConnections: time 8.098e-05/0.1195, allocations: 49.03 kB / 486.8 MB, free: 384 kB / 350.1 MB
Notification: Performance of NFEvalConstants.evaluate: time 0.0001495/0.1197, allocations: 159.1 kB / 487 MB, free: 224 kB / 350.1 MB
Notification: Performance of NFSimplifyModel.simplify: time 0.0003008/0.12, allocations: 203 kB / 487.2 MB, free: 20 kB / 350.1 MB
Notification: Performance of NFPackage.collectConstants: time 3.424e-05/0.1201, allocations: 15.94 kB / 487.2 MB, free: 4 kB / 350.1 MB
Notification: Performance of NFFlatten.collectFunctions: time 0.0004197/0.1205, allocations: 263.6 kB / 487.5 MB, free: 15.75 MB / 366.1 MB
Notification: Performance of NFScalarize.scalarize: time 0.0001263/0.1206, allocations: 103.5 kB / 487.6 MB, free: 15.64 MB / 366.1 MB
Notification: Performance of NFVerifyModel.verify: time 0.0001963/0.1208, allocations: 204.5 kB / 487.8 MB, free: 15.44 MB / 366.1 MB
Notification: Performance of NFConvertDAE.convert: time 0.0006265/0.1215, allocations: 0.5489 MB / 488.3 MB, free: 14.89 MB / 366.1 MB
Notification: Performance of FrontEnd - DAE generated: time 4.047e-06/0.1215, allocations: 0 / 488.3 MB, free: 14.89 MB / 366.1 MB
Notification: Performance of FrontEnd: time 2.665e-06/0.1215, allocations: 0 / 488.3 MB, free: 14.89 MB / 366.1 MB
Notification: Performance of Transformations before backend: time 7.274e-06/0.1215, allocations: 0 / 488.3 MB, free: 14.89 MB / 366.1 MB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 137
 * Number of variables: 137
Notification: Performance of Generate backend data structure: time 0.0009393/0.1224, allocations: 0.6322 MB / 489 MB, free: 14.2 MB / 366.1 MB
Notification: Performance of prepare preOptimizeDAE: time 5.265e-05/0.1225, allocations: 8.875 kB / 489 MB, free: 14.2 MB / 366.1 MB
Notification: Performance of preOpt normalInlineFunction (simulation): time 9.75e-05/0.1226, allocations: 48.38 kB / 489 MB, free: 14.15 MB / 366.1 MB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.0004107/0.123, allocations: 299.5 kB / 489.3 MB, free: 13.82 MB / 366.1 MB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.823e-05/0.1231, allocations: 33.69 kB / 489.3 MB, free: 13.79 MB / 366.1 MB
Notification: Performance of preOpt expandDerOperator (simulation): time 9.325e-05/0.1232, allocations: 56.12 kB / 489.4 MB, free: 13.73 MB / 366.1 MB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.0009616/0.1241, allocations: 0.6349 MB / 490 MB, free: 13.09 MB / 366.1 MB
Notification: Performance of preOpt findStateOrder (simulation): time 1.409e-05/0.1242, allocations: 0 / 490 MB, free: 13.09 MB / 366.1 MB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 4.469e-05/0.1242, allocations: 20 kB / 490 MB, free: 13.07 MB / 366.1 MB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.668e-05/0.1243, allocations: 37.3 kB / 490.1 MB, free: 13.04 MB / 366.1 MB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.000768/0.1251, allocations: 0.5047 MB / 490.6 MB, free: 12.53 MB / 366.1 MB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.002189/0.1272, allocations: 1.414 MB / 492 MB, free: 11.06 MB / 366.1 MB
Notification: Performance of preOpt comSubExp (simulation): time 0.0007521/0.128, allocations: 438.1 kB / 492.4 MB, free: 10.62 MB / 366.1 MB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0002439/0.1283, allocations: 144.8 kB / 492.6 MB, free: 10.48 MB / 366.1 MB
Notification: Performance of preOpt evalFunc (simulation): time 6.18e-05/0.1283, allocations: 15.92 kB / 492.6 MB, free: 10.46 MB / 366.1 MB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.555e-05/0.1284, allocations: 34.56 kB / 492.6 MB, free: 10.42 MB / 366.1 MB
Notification: Performance of pre-optimization done (n=25): time 1.973e-06/0.1284, allocations: 0 / 492.6 MB, free: 10.42 MB / 366.1 MB
Notification: Performance of matching and sorting (n=25): time 0.001063/0.1295, allocations: 0.5012 MB / 493.1 MB, free: 9.91 MB / 366.1 MB
Notification: Performance of inlineWhenForInitialization (initialization): time 4.354e-05/0.1295, allocations: 59.34 kB / 493.2 MB, free: 9.84 MB / 366.1 MB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0006679/0.1302, allocations: 0.5486 MB / 493.7 MB, free: 9.281 MB / 366.1 MB
Notification: Performance of collectPreVariables (initialization): time 3.357e-05/0.1302, allocations: 25.7 kB / 493.7 MB, free: 9.25 MB / 366.1 MB
Notification: Performance of collectInitialEqns (initialization): time 0.0001926/0.1304, allocations: 224.1 kB / 494 MB, free: 9.027 MB / 366.1 MB
Notification: Performance of collectInitialBindings (initialization): time 9.044e-05/0.1305, allocations: 86.75 kB / 494.1 MB, free: 8.941 MB / 366.1 MB
Notification: Performance of simplifyInitialFunctions (initialization): time 7.023e-05/0.1306, allocations: 45.69 kB / 494.1 MB, free: 8.891 MB / 366.1 MB
Notification: Performance of setup shared object (initialization): time 0.0001535/0.1308, allocations: 350.8 kB / 494.4 MB, free: 8.539 MB / 366.1 MB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002695/0.1311, allocations: 156.2 kB / 494.6 MB, free: 8.383 MB / 366.1 MB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0003415/0.1314, allocations: 252.8 kB / 494.8 MB, free: 8.094 MB / 366.1 MB
Notification: Performance of analyzeInitialSystem (initialization): time 0.003752/0.1352, allocations: 1.034 MB / 495.9 MB, free: 7.023 MB / 366.1 MB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.777e-06/0.1352, allocations: 0 / 495.9 MB, free: 7.023 MB / 366.1 MB
Notification: Performance of matching and sorting (n=41) (initialization): time 0.0008543/0.136, allocations: 0.5044 MB / 496.4 MB, free: 6.512 MB / 366.1 MB
Notification: Performance of prepare postOptimizeDAE: time 2.248e-05/0.1361, allocations: 8 kB / 496.4 MB, free: 6.504 MB / 366.1 MB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.934e-05/0.1362, allocations: 43.98 kB / 496.4 MB, free: 6.461 MB / 366.1 MB
Notification: Performance of postOpt tearingSystem (initialization): time 2.033e-05/0.1362, allocations: 4 kB / 496.4 MB, free: 6.457 MB / 366.1 MB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001844/0.1364, allocations: 39.92 kB / 496.5 MB, free: 6.418 MB / 366.1 MB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.363e-05/0.1364, allocations: 8.391 kB / 496.5 MB, free: 6.41 MB / 366.1 MB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002668/0.1367, allocations: 63.22 kB / 496.5 MB, free: 6.348 MB / 366.1 MB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.377e-05/0.1367, allocations: 20 kB / 496.6 MB, free: 6.328 MB / 366.1 MB
Warning: Assuming fixed start value for the following 1 variables:
         dimlesslength:VARIABLE(start = 0.01 unit = "m" fixed = true )  type: Real
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 14
 * Number of states: 0 ()
 * Number of discrete variables: 12 (m_flow_IN_con_4[3].target,m_flow_IN_con_4[2].target,m_flow_IN_con_4[1].target,m_flow_IN_con_3[3].target,m_flow_IN_con_3[2].target,m_flow_IN_con_3[1].target,m_flow_IN_con_2[3].target,m_flow_IN_con_2[2].target,m_flow_IN_con_2[1].target,m_flow_IN_con_1[3].target,m_flow_IN_con_1[2].target,m_flow_IN_con_1[1].target)
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (41):
 * Single equations (assignments): 29
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 12
 * 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 0.000308/0.137, allocations: 225.5 kB / 496.8 MB, free: 6.098 MB / 366.1 MB
Notification: Performance of postOpt lateInlineFunction (simulation): time 6.904e-05/0.1371, allocations: 39.44 kB / 496.8 MB, free: 6.059 MB / 366.1 MB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0009506/0.1381, allocations: 0.5363 MB / 497.4 MB, free: 5.516 MB / 366.1 MB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.045e-06/0.1381, allocations: 7.938 kB / 497.4 MB, free: 5.508 MB / 366.1 MB
Notification: Performance of postOpt constantLinearSystem (simulation): time 4.559e-06/0.1381, allocations: 0 / 497.4 MB, free: 5.508 MB / 366.1 MB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.202e-06/0.1381, allocations: 4 kB / 497.4 MB, free: 5.504 MB / 366.1 MB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0006612/0.1388, allocations: 429.1 kB / 497.8 MB, free: 5.035 MB / 366.1 MB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 9.601e-05/0.1389, allocations: 43.92 kB / 497.8 MB, free: 4.992 MB / 366.1 MB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002201/0.1391, allocations: 27.92 kB / 497.9 MB, free: 4.965 MB / 366.1 MB
Notification: Performance of postOpt tearingSystem (simulation): time 8.065e-06/0.1391, allocations: 7.984 kB / 497.9 MB, free: 4.957 MB / 366.1 MB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.423e-05/0.1392, allocations: 15.98 kB / 497.9 MB, free: 4.941 MB / 366.1 MB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 4.468e-06/0.1392, allocations: 4 kB / 497.9 MB, free: 4.938 MB / 366.1 MB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.523e-06/0.1392, allocations: 4 kB / 497.9 MB, free: 4.934 MB / 366.1 MB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001075/0.1403, allocations: 0.7027 MB / 498.6 MB, free: 4.215 MB / 366.1 MB
Notification: Performance of postOpt removeConstants (simulation): time 0.0001103/0.1404, allocations: 132.5 kB / 498.7 MB, free: 4.066 MB / 366.1 MB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 6.388e-05/0.1405, allocations: 4 kB / 498.7 MB, free: 4.062 MB / 366.1 MB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001864/0.1407, allocations: 8 kB / 498.7 MB, free: 4.055 MB / 366.1 MB
Notification: Performance of postOpt findZeroCrossings (simulation): time 5.897e-05/0.1407, allocations: 27.91 kB / 498.8 MB, free: 4.027 MB / 366.1 MB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.537e-05/0.1408, allocations: 12 kB / 498.8 MB, free: 4.016 MB / 366.1 MB
Notification: Performance of sorting global known variables: time 0.0004347/0.1412, allocations: 407.1 kB / 499.2 MB, free: 3.621 MB / 366.1 MB
Notification: Performance of sort global known variables: time 1.6e-07/0.1412, allocations: 0 / 499.2 MB, free: 3.621 MB / 366.1 MB
Notification: Performance of remove unused functions: time 0.0004864/0.1417, allocations: 147.9 kB / 499.3 MB, free: 3.477 MB / 366.1 MB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 1
 * Number of states: 1 (dimlesslength)
 * 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 (28):
 * Single equations (assignments): 16
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 12
 * 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 0.0002853/0.142, allocations: 151.5 kB / 499.5 MB, free: 3.32 MB / 366.1 MB
Notification: Performance of simCode: created initialization part: time 0.0007675/0.1428, allocations: 0.6759 MB / 0.4884 GB, free: 2.57 MB / 366.1 MB
Notification: Performance of simCode: created event and clocks part: time 2.364e-06/0.1428, allocations: 0 / 0.4884 GB, free: 2.57 MB / 366.1 MB
Notification: Performance of simCode: created simulation system equations: time 0.0003993/0.1432, allocations: 488.2 kB / 0.4889 GB, free: 2.02 MB / 366.1 MB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0005236/0.1437, allocations: 94.59 kB / 0.489 GB, free: 1.926 MB / 366.1 MB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001841/0.1456, allocations: 1.183 MB / 0.4901 GB, free: 0.7109 MB / 366.1 MB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004445/0.146, allocations: 0.8783 MB / 0.491 GB, free: 15.8 MB / 382.1 MB
Notification: Performance of simCode: alias equations: time 0.0002575/0.1463, allocations: 116.2 kB / 0.4911 GB, free: 15.69 MB / 382.1 MB
Notification: Performance of simCode: all other stuff during SimCode phase: time 8.109e-05/0.1464, allocations: 35.38 kB / 0.4911 GB, free: 15.66 MB / 382.1 MB
Notification: Performance of SimCode: time 6.42e-07/0.1464, allocations: 0 / 0.4911 GB, free: 15.66 MB / 382.1 MB
Notification: Performance of Templates: time 0.01264/0.159, allocations: 7.706 MB / 0.4987 GB, free: 8.027 MB / 382.1 MB
make -j1 -f ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.Channel.kc_evenGapLaminar.makefile
(rm -f ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.Channel.kc_evenGapLaminar.pipe ; mkfifo ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.Channel.kc_evenGapLaminar.pipe ; head -c 1048576 < ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.Channel.kc_evenGapLaminar.pipe >> ../files/ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.Channel.kc_evenGapLaminar.sim & ./ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.Channel.kc_evenGapLaminar  -abortSlowSimulation -alarm=480  -emit_protected -lv LOG_STATS > ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.Channel.kc_evenGapLaminar.pipe 2>&1)
diffSimulationResults("ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.Channel.kc_evenGapLaminar_res.mat","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v4.0.0/ModelicaTest/Fluid/Dissipation/Verifications/HeatTransfer/Channel/kc_evenGapLaminar/kc_evenGapLaminar.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.Channel.kc_evenGapLaminar.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001)
Reference file matches