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 0.00152/0.00152, allocations: 113.9 kB / 17.33 MB, free: 6.008 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex trunk/package.mo): time 0.001982/0.001982, allocations: 205.8 kB / 18.27 MB, free: 5.09 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica trunk/package.mo): time 1.359/1.359, allocations: 227.4 MB / 246.4 MB, free: 10.79 MB / 206.1 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest trunk/package.mo): time 0.2148/0.2148, allocations: 46.11 MB / 343.8 MB, free: 11.75 MB / 286.1 MB
Notification: Performance of FrontEnd - loaded program: time 0.001418/0.001418, allocations: 75.72 kB / 417.1 MB, free: 20.05 MB / 302.1 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1144/0.1158, allocations: 62.44 MB / 479.5 MB, free: 5.586 MB / 350.1 MB
Notification: Performance of NFInst.instantiate(ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.Channel.kc_evenGapLaminar): time 0.0031/0.119, allocations: 2.014 MB / 481.5 MB, free: 3.547 MB / 350.1 MB
Notification: Performance of NFInst.instExpressions: time 0.001638/0.1206, allocations: 1.161 MB / 482.7 MB, free: 2.383 MB / 350.1 MB
Notification: Performance of NFInst.updateImplicitVariability: time 8.615e-05/0.1207, allocations: 0 / 482.7 MB, free: 2.383 MB / 350.1 MB
Notification: Performance of NFTyping.typeComponents: time 0.0002681/0.121, allocations: 59.72 kB / 482.7 MB, free: 2.324 MB / 350.1 MB
Notification: Performance of NFTyping.typeBindings: time 0.0002471/0.1213, allocations: 99.53 kB / 482.8 MB, free: 2.227 MB / 350.1 MB
Notification: Performance of NFTyping.typeClassSections: time 0.0004397/0.1217, allocations: 127.6 kB / 483 MB, free: 2.102 MB / 350.1 MB
Notification: Performance of NFFlatten.flatten: time 0.0004824/0.1222, allocations: 477.7 kB / 483.4 MB, free: 1.633 MB / 350.1 MB
Notification: Performance of NFFlatten.resolveConnections: time 8.846e-05/0.1223, allocations: 57 kB / 483.5 MB, free: 1.578 MB / 350.1 MB
Notification: Performance of NFEvalConstants.evaluate: time 0.0001424/0.1224, allocations: 163.1 kB / 483.6 MB, free: 1.418 MB / 350.1 MB
Notification: Performance of NFSimplifyModel.simplify: time 0.000243/0.1227, allocations: 211 kB / 483.9 MB, free: 1.211 MB / 350.1 MB
Notification: Performance of NFPackage.collectConstants: time 3.002e-05/0.1227, allocations: 11.94 kB / 483.9 MB, free: 1.199 MB / 350.1 MB
Notification: Performance of NFFlatten.collectFunctions: time 0.0003859/0.1231, allocations: 271.5 kB / 484.1 MB, free: 0.9336 MB / 350.1 MB
Notification: Performance of NFScalarize.scalarize: time 0.0001109/0.1232, allocations: 99.52 kB / 484.2 MB, free: 0.8359 MB / 350.1 MB
Notification: Performance of NFVerifyModel.verify: time 0.0001541/0.1234, allocations: 186.7 kB / 484.4 MB, free: 0.6523 MB / 350.1 MB
Notification: Performance of NFConvertDAE.convert: time 0.0006024/0.124, allocations: 0.5529 MB / 485 MB, free: 100 kB / 350.1 MB
Notification: Performance of FrontEnd - DAE generated: time 5.81e-06/0.124, allocations: 4 kB / 485 MB, free: 96 kB / 350.1 MB
Notification: Performance of FrontEnd: time 1.183e-06/0.124, allocations: 0 / 485 MB, free: 96 kB / 350.1 MB
Notification: Performance of Transformations before backend: time 7.615e-06/0.124, allocations: 0 / 485 MB, free: 96 kB / 350.1 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 0.001041/0.1251, allocations: 0.7258 MB / 485.7 MB, free: 15.32 MB / 366.1 MB
Notification: Performance of prepare preOptimizeDAE: time 4.154e-05/0.1251, allocations: 8.031 kB / 485.7 MB, free: 15.31 MB / 366.1 MB
Notification: Performance of preOpt normalInlineFunction (simulation): time 8.934e-05/0.1252, allocations: 48.38 kB / 485.7 MB, free: 15.26 MB / 366.1 MB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.000346/0.1256, allocations: 299.6 kB / 486 MB, free: 14.93 MB / 366.1 MB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.191e-05/0.1256, allocations: 37.69 kB / 486.1 MB, free: 14.89 MB / 366.1 MB
Notification: Performance of preOpt expandDerOperator (simulation): time 7.35e-05/0.1257, allocations: 52.11 kB / 486.1 MB, free: 14.84 MB / 366.1 MB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.0008929/0.1266, allocations: 0.631 MB / 486.8 MB, free: 14.21 MB / 366.1 MB
Notification: Performance of preOpt findStateOrder (simulation): time 1.416e-05/0.1266, allocations: 0 / 486.8 MB, free: 14.21 MB / 366.1 MB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 4.333e-05/0.1267, allocations: 20 kB / 486.8 MB, free: 14.19 MB / 366.1 MB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.681e-05/0.1267, allocations: 41.23 kB / 486.8 MB, free: 14.15 MB / 366.1 MB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0007753/0.1275, allocations: 0.5085 MB / 487.3 MB, free: 13.64 MB / 366.1 MB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.002257/0.1298, allocations: 1.414 MB / 488.7 MB, free: 12.17 MB / 366.1 MB
Notification: Performance of preOpt comSubExp (simulation): time 0.0006888/0.1305, allocations: 438.1 kB / 489.2 MB, free: 11.73 MB / 366.1 MB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0002135/0.1307, allocations: 140.8 kB / 489.3 MB, free: 11.59 MB / 366.1 MB
Notification: Performance of preOpt evalFunc (simulation): time 6.51e-05/0.1308, allocations: 15.91 kB / 489.3 MB, free: 11.57 MB / 366.1 MB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.448e-05/0.1308, allocations: 42.5 kB / 489.4 MB, free: 11.52 MB / 366.1 MB
Notification: Performance of pre-optimization done (n=25): time 1.724e-06/0.1308, allocations: 0 / 489.4 MB, free: 11.52 MB / 366.1 MB
Notification: Performance of matching and sorting (n=25): time 0.0009066/0.1317, allocations: 0.4967 MB / 489.9 MB, free: 11.02 MB / 366.1 MB
Notification: Performance of inlineWhenForInitialization (initialization): time 3.407e-05/0.1318, allocations: 59.41 kB / 489.9 MB, free: 10.95 MB / 366.1 MB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.000566/0.1323, allocations: 0.5446 MB / 490.5 MB, free: 10.39 MB / 366.1 MB
Notification: Performance of collectPreVariables (initialization): time 3.034e-05/0.1324, allocations: 29.7 kB / 490.5 MB, free: 10.36 MB / 366.1 MB
Notification: Performance of collectInitialEqns (initialization): time 0.0001644/0.1326, allocations: 224 kB / 490.7 MB, free: 10.14 MB / 366.1 MB
Notification: Performance of collectInitialBindings (initialization): time 8.806e-05/0.1326, allocations: 86.8 kB / 490.8 MB, free: 10.05 MB / 366.1 MB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001461/0.1328, allocations: 89.92 kB / 490.9 MB, free: 9.957 MB / 366.1 MB
Notification: Performance of setup shared object (initialization): time 0.0001475/0.133, allocations: 362.8 kB / 491.2 MB, free: 9.594 MB / 366.1 MB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002559/0.1332, allocations: 152.2 kB / 491.4 MB, free: 9.445 MB / 366.1 MB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0003215/0.1336, allocations: 260.7 kB / 491.6 MB, free: 9.148 MB / 366.1 MB
Notification: Performance of analyzeInitialSystem (initialization): time 0.00386/0.1374, allocations: 1.061 MB / 492.7 MB, free: 8.051 MB / 366.1 MB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.801e-06/0.1374, allocations: 4 kB / 492.7 MB, free: 8.047 MB / 366.1 MB
Notification: Performance of matching and sorting (n=41) (initialization): time 0.0008151/0.1383, allocations: 0.4889 MB / 493.2 MB, free: 7.551 MB / 366.1 MB
Notification: Performance of prepare postOptimizeDAE: time 1.82e-05/0.1383, allocations: 4 kB / 493.2 MB, free: 7.547 MB / 366.1 MB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.391e-05/0.1384, allocations: 44.39 kB / 493.2 MB, free: 7.504 MB / 366.1 MB
Notification: Performance of postOpt tearingSystem (initialization): time 1.916e-05/0.1384, allocations: 11.94 kB / 493.3 MB, free: 7.492 MB / 366.1 MB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002139/0.1386, allocations: 43.91 kB / 493.3 MB, free: 7.449 MB / 366.1 MB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.257e-05/0.1386, allocations: 7.984 kB / 493.3 MB, free: 7.441 MB / 366.1 MB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002669/0.1389, allocations: 59.22 kB / 493.4 MB, free: 7.383 MB / 366.1 MB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.607e-05/0.139, allocations: 27.98 kB / 493.4 MB, free: 7.355 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 0.0003292/0.1393, allocations: 221.6 kB / 493.6 MB, free: 7.129 MB / 366.1 MB
Notification: Performance of postOpt lateInlineFunction (simulation): time 7.111e-05/0.1394, allocations: 43.44 kB / 493.6 MB, free: 7.086 MB / 366.1 MB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0009298/0.1403, allocations: 0.5401 MB / 494.2 MB, free: 6.539 MB / 366.1 MB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 7.895e-06/0.1403, allocations: 4 kB / 494.2 MB, free: 6.535 MB / 366.1 MB
Notification: Performance of postOpt constantLinearSystem (simulation): time 4.619e-06/0.1403, allocations: 0 / 494.2 MB, free: 6.535 MB / 366.1 MB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.931e-06/0.1404, allocations: 3.984 kB / 494.2 MB, free: 6.531 MB / 366.1 MB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0005478/0.1409, allocations: 433 kB / 494.6 MB, free: 6.059 MB / 366.1 MB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.847e-05/0.141, allocations: 47.92 kB / 494.7 MB, free: 6.012 MB / 366.1 MB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001604/0.1411, allocations: 23.98 kB / 494.7 MB, free: 5.988 MB / 366.1 MB
Notification: Performance of postOpt tearingSystem (simulation): time 3.246e-06/0.1412, allocations: 4 kB / 494.7 MB, free: 5.984 MB / 366.1 MB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.794e-05/0.1412, allocations: 12 kB / 494.7 MB, free: 5.973 MB / 366.1 MB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.863e-06/0.1412, allocations: 4 kB / 494.7 MB, free: 5.969 MB / 366.1 MB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.585e-06/0.1412, allocations: 0 / 494.7 MB, free: 5.969 MB / 366.1 MB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0009863/0.1422, allocations: 0.7067 MB / 495.4 MB, free: 5.246 MB / 366.1 MB
Notification: Performance of postOpt removeConstants (simulation): time 0.0001356/0.1423, allocations: 128.5 kB / 495.5 MB, free: 5.102 MB / 366.1 MB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 6.866e-05/0.1424, allocations: 7.984 kB / 495.5 MB, free: 5.094 MB / 366.1 MB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001825/0.1426, allocations: 4 kB / 495.6 MB, free: 5.09 MB / 366.1 MB
Notification: Performance of postOpt findZeroCrossings (simulation): time 5.603e-05/0.1427, allocations: 28.05 kB / 495.6 MB, free: 5.062 MB / 366.1 MB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 3.134e-05/0.1427, allocations: 19.98 kB / 495.6 MB, free: 5.043 MB / 366.1 MB
Notification: Performance of sorting global known variables: time 0.0004007/0.1431, allocations: 403 kB / 496 MB, free: 4.652 MB / 366.1 MB
Notification: Performance of sort global known variables: time 1.2e-07/0.1431, allocations: 0 / 496 MB, free: 4.652 MB / 366.1 MB
Notification: Performance of remove unused functions: time 0.0005383/0.1437, allocations: 151.8 kB / 496.1 MB, free: 4.504 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 0.0003264/0.144, allocations: 155.5 kB / 496.3 MB, free: 4.344 MB / 366.1 MB
Notification: Performance of simCode: created initialization part: time 0.0008397/0.1448, allocations: 0.7267 MB / 497 MB, free: 3.543 MB / 366.1 MB
Notification: Performance of simCode: created event and clocks part: time 2.104e-06/0.1449, allocations: 0.8125 kB / 497 MB, free: 3.543 MB / 366.1 MB
Notification: Performance of simCode: created simulation system equations: time 0.0003944/0.1453, allocations: 492.2 kB / 497.5 MB, free: 2.988 MB / 366.1 MB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.000507/0.1458, allocations: 97.78 kB / 497.6 MB, free: 2.891 MB / 366.1 MB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001808/0.1476, allocations: 1.146 MB / 498.7 MB, free: 1.719 MB / 366.1 MB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004421/0.1481, allocations: 0.8857 MB / 499.6 MB, free: 0.8047 MB / 366.1 MB
Notification: Performance of simCode: alias equations: time 0.0002434/0.1483, allocations: 112.2 kB / 499.7 MB, free: 0.6953 MB / 366.1 MB
Notification: Performance of simCode: all other stuff during SimCode phase: time 7.831e-05/0.1484, allocations: 31.44 kB / 499.8 MB, free: 0.668 MB / 366.1 MB
Notification: Performance of SimCode: time 4.01e-07/0.1484, allocations: 0 / 499.8 MB, free: 0.668 MB / 366.1 MB
Notification: Performance of Templates: time 0.0128/0.1612, allocations: 8.036 MB / 0.4959 GB, free: 8.711 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