Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.HelicalPipe.kc_turbulent_KC.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.HelicalPipe.kc_turbulent_KC,tolerance=1e-07,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|n_nt.1.|n_nt.2.|n_nt.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.|Nu.2.|Nu.3.|m_flow_1.1.|m_flow_1.2.|m_flow_1.3.|m_flow_2.1.|m_flow_2.2.|m_flow_2.3.|m_flow_3.1.|m_flow_3.2.|m_flow_3.3.|kc_1.1.|kc_1.2.|kc_1.3.|kc_2.1.|kc_2.2.|kc_2.3.|kc_3.1.|kc_3.2.|kc_3.3.|Re_1.1.|Re_1.2.|Re_1.3.|Re_2.1.|Re_2.2.|Re_2.3.|Re_3.1.|Re_3.2.|Re_3.3.|input_Nu.y",fileNamePrefix="ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.HelicalPipe.kc_turbulent_KC") translateModel(ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.HelicalPipe.kc_turbulent_KC,tolerance=1e-07,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|n_nt.1.|n_nt.2.|n_nt.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.|Nu.2.|Nu.3.|m_flow_1.1.|m_flow_1.2.|m_flow_1.3.|m_flow_2.1.|m_flow_2.2.|m_flow_2.3.|m_flow_3.1.|m_flow_3.2.|m_flow_3.3.|kc_1.1.|kc_1.2.|kc_1.3.|kc_2.1.|kc_2.2.|kc_2.3.|kc_3.1.|kc_3.2.|kc_3.3.|Re_1.1.|Re_1.2.|Re_1.3.|Re_2.1.|Re_2.2.|Re_2.3.|Re_3.1.|Re_3.2.|Re_3.3.|input_Nu.y",fileNamePrefix="ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.HelicalPipe.kc_turbulent_KC") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices trunk/package.mo): time 0.001358/0.001358, allocations: 113 kB / 18.45 MB, free: 4.645 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex trunk/package.mo): time 0.001726/0.001726, allocations: 208.9 kB / 19.4 MB, free: 3.699 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica trunk/package.mo): time 1.421/1.421, allocations: 227.4 MB / 247.6 MB, free: 10.51 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest trunk/package.mo): time 0.2095/0.2095, allocations: 46.1 MB / 345 MB, free: 11.54 MB / 286.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001374/0.001374, allocations: 75.88 kB / 482 MB, free: 4.074 MB / 350.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3522/0.3535, allocations: 62.43 MB / 0.5317 GB, free: 13.64 MB / 398.1 MB Notification: Performance of NFInst.instantiate(ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.HelicalPipe.kc_turbulent_KC): time 0.003452/0.357, allocations: 2.025 MB / 0.5337 GB, free: 12.07 MB / 398.1 MB Notification: Performance of NFInst.instExpressions: time 0.001734/0.3588, allocations: 0.9406 MB / 0.5346 GB, free: 11.32 MB / 398.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0001665/0.359, allocations: 1.375 kB / 0.5346 GB, free: 11.32 MB / 398.1 MB Notification: Performance of NFTyping.typeComponents: time 0.0003101/0.3593, allocations: 68.09 kB / 0.5346 GB, free: 11.27 MB / 398.1 MB Notification: Performance of NFTyping.typeBindings: time 0.0003972/0.3597, allocations: 116.2 kB / 0.5348 GB, free: 11.18 MB / 398.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.0003238/0.3601, allocations: 89.03 kB / 0.5348 GB, free: 11.13 MB / 398.1 MB Notification: Performance of NFFlatten.flatten: time 0.000457/0.3606, allocations: 396.7 kB / 0.5352 GB, free: 10.91 MB / 398.1 MB Notification: Performance of NFFlatten.resolveConnections: time 7.587e-05/0.3606, allocations: 38.19 kB / 0.5353 GB, free: 10.9 MB / 398.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0002681/0.3609, allocations: 161.2 kB / 0.5354 GB, free: 10.81 MB / 398.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.0002336/0.3612, allocations: 181.1 kB / 0.5356 GB, free: 10.7 MB / 398.1 MB Notification: Performance of NFPackage.collectConstants: time 3.401e-05/0.3612, allocations: 11.22 kB / 0.5356 GB, free: 10.7 MB / 398.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.0003155/0.3615, allocations: 151.7 kB / 0.5357 GB, free: 10.61 MB / 398.1 MB Notification: Performance of NFScalarize.scalarize: time 0.000113/0.3616, allocations: 98.92 kB / 0.5358 GB, free: 10.55 MB / 398.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0001622/0.3618, allocations: 153.3 kB / 0.536 GB, free: 10.45 MB / 398.1 MB Notification: Performance of NFConvertDAE.convert: time 0.0005983/0.3624, allocations: 436.6 kB / 0.5364 GB, free: 10.19 MB / 398.1 MB Notification: Performance of FrontEnd - DAE generated: time 4.178e-06/0.3624, allocations: 1.469 kB / 0.5364 GB, free: 10.19 MB / 398.1 MB Notification: Performance of FrontEnd: time 1.423e-06/0.3624, allocations: 0 / 0.5364 GB, free: 10.19 MB / 398.1 MB Notification: Performance of Transformations before backend: time 8.416e-06/0.3625, allocations: 4 kB / 0.5364 GB, free: 10.18 MB / 398.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 112 * Number of variables: 112 Notification: Performance of Generate backend data structure: time 0.001088/0.3636, allocations: 0.6518 MB / 0.537 GB, free: 9.613 MB / 398.1 MB Notification: Performance of prepare preOptimizeDAE: time 3.615e-05/0.3636, allocations: 9.281 kB / 0.537 GB, free: 9.613 MB / 398.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 8.658e-05/0.3637, allocations: 43.52 kB / 0.5371 GB, free: 9.59 MB / 398.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0003348/0.364, allocations: 280.5 kB / 0.5374 GB, free: 9.328 MB / 398.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.932e-05/0.3641, allocations: 32.31 kB / 0.5374 GB, free: 9.312 MB / 398.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 5.947e-05/0.3641, allocations: 35.03 kB / 0.5374 GB, free: 9.301 MB / 398.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0009143/0.3651, allocations: 0.5567 MB / 0.538 GB, free: 8.992 MB / 398.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 1.211e-05/0.3651, allocations: 0 / 0.538 GB, free: 8.992 MB / 398.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 4.03e-05/0.3651, allocations: 19.23 kB / 0.538 GB, free: 8.977 MB / 398.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.843e-05/0.3652, allocations: 39.84 kB / 0.538 GB, free: 8.965 MB / 398.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0009839/0.3662, allocations: 0.5718 MB / 0.5386 GB, free: 8.703 MB / 398.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001953/0.3681, allocations: 1.177 MB / 0.5397 GB, free: 7.895 MB / 398.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.0006817/0.3688, allocations: 376.1 kB / 0.5401 GB, free: 7.738 MB / 398.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002682/0.3691, allocations: 134.1 kB / 0.5402 GB, free: 7.68 MB / 398.1 MB Notification: Performance of preOpt evalFunc (simulation): time 4.166e-05/0.3692, allocations: 11.58 kB / 0.5402 GB, free: 7.672 MB / 398.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.053e-05/0.3692, allocations: 31.75 kB / 0.5403 GB, free: 7.633 MB / 398.1 MB Notification: Performance of pre-optimization done (n=22): time 1.412e-06/0.3692, allocations: 0 / 0.5403 GB, free: 7.633 MB / 398.1 MB Notification: Performance of matching and sorting (n=22): time 0.00104/0.3703, allocations: 471.6 kB / 0.5407 GB, free: 7.422 MB / 398.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 3.751e-05/0.3703, allocations: 53.5 kB / 0.5408 GB, free: 7.359 MB / 398.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0005509/0.3709, allocations: 450.8 kB / 0.5412 GB, free: 7.102 MB / 398.1 MB Notification: Performance of collectPreVariables (initialization): time 3.146e-05/0.3709, allocations: 30.73 kB / 0.5412 GB, free: 7.066 MB / 398.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0001573/0.3711, allocations: 192.6 kB / 0.5414 GB, free: 6.891 MB / 398.1 MB Notification: Performance of collectInitialBindings (initialization): time 7.058e-05/0.3711, allocations: 72.77 kB / 0.5415 GB, free: 6.828 MB / 398.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001007/0.3713, allocations: 59.19 kB / 0.5415 GB, free: 6.785 MB / 398.1 MB Notification: Performance of setup shared object (initialization): time 0.0001673/0.3714, allocations: 354.3 kB / 0.5419 GB, free: 6.441 MB / 398.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002749/0.3717, allocations: 114.3 kB / 0.542 GB, free: 6.398 MB / 398.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.000268/0.372, allocations: 117.1 kB / 0.5421 GB, free: 6.355 MB / 398.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.000561/0.3726, allocations: 269.5 kB / 0.5423 GB, free: 6.246 MB / 398.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.134e-06/0.3726, allocations: 0 / 0.5423 GB, free: 6.246 MB / 398.1 MB Notification: Performance of matching and sorting (n=22) (initialization): time 0.0006825/0.3733, allocations: 339.8 kB / 0.5427 GB, free: 6.09 MB / 398.1 MB Notification: Performance of prepare postOptimizeDAE: time 1.627e-05/0.3733, allocations: 5.938 kB / 0.5427 GB, free: 6.09 MB / 398.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.981e-06/0.3733, allocations: 7.875 kB / 0.5427 GB, free: 6.082 MB / 398.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 1.602e-05/0.3733, allocations: 1.125 kB / 0.5427 GB, free: 6.082 MB / 398.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0007497/0.3741, allocations: 155.6 kB / 0.5428 GB, free: 6.039 MB / 398.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003196/0.3773, allocations: 5.526 MB / 0.5482 GB, free: 416 kB / 398.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002621/0.3776, allocations: 47.44 kB / 0.5483 GB, free: 368 kB / 398.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.957e-05/0.3776, allocations: 15.98 kB / 0.5483 GB, free: 352 kB / 398.1 MB 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 (22): * Single equations (assignments): 13 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 9 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 9 systems {1, 1, 1, 1, 1, 1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0002225/0.3778, allocations: 189.9 kB / 0.5485 GB, free: 152 kB / 398.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 6.511e-05/0.3779, allocations: 35.62 kB / 0.5485 GB, free: 116 kB / 398.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0008828/0.3788, allocations: 455.4 kB / 0.5489 GB, free: 15.67 MB / 414.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.108e-06/0.3788, allocations: 0 / 0.5489 GB, free: 15.67 MB / 414.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.109e-06/0.3788, allocations: 4 kB / 0.5489 GB, free: 15.66 MB / 414.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.797e-06/0.3788, allocations: 0 / 0.5489 GB, free: 15.66 MB / 414.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0004778/0.3793, allocations: 381.2 kB / 0.5493 GB, free: 15.24 MB / 414.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.244e-06/0.3793, allocations: 0 / 0.5493 GB, free: 15.24 MB / 414.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0006602/0.38, allocations: 151.9 kB / 0.5494 GB, free: 15.09 MB / 414.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 5.6e-06/0.38, allocations: 4 kB / 0.5494 GB, free: 15.09 MB / 414.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.671e-05/0.38, allocations: 11.98 kB / 0.5495 GB, free: 15.08 MB / 414.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.002952/0.383, allocations: 5.509 MB / 0.5548 GB, free: 9.359 MB / 414.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.366e-06/0.383, allocations: 8.031 kB / 0.5548 GB, free: 9.352 MB / 414.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0006771/0.3837, allocations: 446.8 kB / 0.5553 GB, free: 8.898 MB / 414.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0001684/0.3839, allocations: 120.6 kB / 0.5554 GB, free: 8.762 MB / 414.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 6.712e-05/0.3839, allocations: 0 / 0.5554 GB, free: 8.762 MB / 414.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0002186/0.3842, allocations: 11.98 kB / 0.5554 GB, free: 8.75 MB / 414.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 8.308e-05/0.3843, allocations: 27.91 kB / 0.5554 GB, free: 8.723 MB / 414.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.951e-05/0.3843, allocations: 23.92 kB / 0.5554 GB, free: 8.699 MB / 414.1 MB Notification: Performance of sorting global known variables: time 0.0003708/0.3847, allocations: 335.1 kB / 0.5558 GB, free: 8.375 MB / 414.1 MB Notification: Performance of sort global known variables: time 1.2e-07/0.3847, allocations: 0 / 0.5558 GB, free: 8.375 MB / 414.1 MB Notification: Performance of remove unused functions: time 0.0004158/0.3851, allocations: 95.94 kB / 0.5559 GB, free: 8.281 MB / 414.1 MB 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 (22): * Single equations (assignments): 13 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 9 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 9 systems {1, 1, 1, 1, 1, 1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.0002855/0.3854, allocations: 139.1 kB / 0.556 GB, free: 8.133 MB / 414.1 MB Notification: Performance of simCode: created initialization part: time 0.00115/0.3866, allocations: 406.9 kB / 0.5564 GB, free: 7.738 MB / 414.1 MB Notification: Performance of simCode: created event and clocks part: time 2.625e-06/0.3866, allocations: 0 / 0.5564 GB, free: 7.738 MB / 414.1 MB Notification: Performance of simCode: created simulation system equations: time 0.0008079/0.3874, allocations: 275.7 kB / 0.5566 GB, free: 7.469 MB / 414.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0005436/0.3879, allocations: 85.39 kB / 0.5567 GB, free: 7.387 MB / 414.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001425/0.3894, allocations: 0.8124 MB / 0.5575 GB, free: 6.543 MB / 414.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004275/0.3898, allocations: 0.8464 MB / 0.5583 GB, free: 5.668 MB / 414.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001007/0.3899, allocations: 35.42 kB / 0.5584 GB, free: 5.633 MB / 414.1 MB Notification: Performance of SimCode: time 1.683e-06/0.3899, allocations: 0 / 0.5584 GB, free: 5.633 MB / 414.1 MB Notification: Performance of Templates: time 0.02147/0.4114, allocations: 19.23 MB / 0.5772 GB, free: 2.418 MB / 430.1 MB make -j1 -f ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.HelicalPipe.kc_turbulent_KC.makefile (rm -f ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.HelicalPipe.kc_turbulent_KC.pipe ; mkfifo ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.HelicalPipe.kc_turbulent_KC.pipe ; head -c 1048576 < ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.HelicalPipe.kc_turbulent_KC.pipe >> ../files/ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.HelicalPipe.kc_turbulent_KC.sim & ./ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.HelicalPipe.kc_turbulent_KC -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS > ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.HelicalPipe.kc_turbulent_KC.pipe 2>&1) diffSimulationResults("ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.HelicalPipe.kc_turbulent_KC_res.mat","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v4.0.0/ModelicaTest/Fluid/Dissipation/Verifications/HeatTransfer/HelicalPipe/kc_turbulent_KC/kc_turbulent_KC.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/ModelicaTest_trunk_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.HelicalPipe.kc_turbulent_KC.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches