Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ModelicaTest_4.0.0_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.General.kc_approxForcedConvection_KC.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/ModelicaTest 4.0.0+maint.om/package.mo", uses=false) Using package ModelicaTest with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 4.0.0+maint.om/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(ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.General.kc_approxForcedConvection_KC,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|cp.1.|cp.2.|eta.1.|eta.2.|lambda.1.|lambda.2.|rho.1.|rho.2.|Nu.1.|Nu.2.|m_flow_1.1.|m_flow_1.2.|m_flow_2.1.|m_flow_2.2.|m_flow_3.1.|m_flow_3.2.|kc_1.1.|kc_1.2.|kc_2.1.|kc_2.2.|kc_3.1.|kc_3.2.|Re_1.1.|Re_1.2.|Re_2.1.|Re_2.2.|Re_3.1.|Re_3.2.|input_Nu.y",fileNamePrefix="ModelicaTest_4.0.0_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.General.kc_approxForcedConvection_KC") translateModel(ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.General.kc_approxForcedConvection_KC,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|cp.1.|cp.2.|eta.1.|eta.2.|lambda.1.|lambda.2.|rho.1.|rho.2.|Nu.1.|Nu.2.|m_flow_1.1.|m_flow_1.2.|m_flow_2.1.|m_flow_2.2.|m_flow_3.1.|m_flow_3.2.|kc_1.1.|kc_1.2.|kc_2.1.|kc_2.2.|kc_3.1.|kc_3.2.|Re_1.1.|Re_1.2.|Re_2.1.|Re_2.2.|Re_3.1.|Re_3.2.|input_Nu.y",fileNamePrefix="ModelicaTest_4.0.0_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.General.kc_approxForcedConvection_KC") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001098/0.001098, allocations: 110.4 kB / 17.78 MB, free: 5.27 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001182/0.001182, allocations: 183.8 kB / 18.71 MB, free: 4.348 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.335/1.335, allocations: 222.9 MB / 242.4 MB, free: 15.06 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 4.0.0+maint.om/package.mo): time 0.2095/0.2095, allocations: 44.19 MB / 336.7 MB, free: 2.652 MB / 270.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001323/0.001323, allocations: 55.91 kB / 470.6 MB, free: 13.13 MB / 350.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.387/0.3884, allocations: 60.82 MB / 0.5189 GB, free: 3.605 MB / 382.1 MB Notification: Performance of NFInst.instantiate(ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.General.kc_approxForcedConvection_KC): time 0.003289/0.3917, allocations: 1.996 MB / 0.5209 GB, free: 2.223 MB / 382.1 MB Notification: Performance of NFInst.instExpressions: time 0.001447/0.3932, allocations: 0.8038 MB / 0.5217 GB, free: 1.664 MB / 382.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0001563/0.3934, allocations: 6.5 kB / 0.5217 GB, free: 1.66 MB / 382.1 MB Notification: Performance of NFTyping.typeComponents: time 0.0003667/0.3937, allocations: 70.45 kB / 0.5217 GB, free: 1.625 MB / 382.1 MB Notification: Performance of NFTyping.typeBindings: time 0.0004845/0.3942, allocations: 109.7 kB / 0.5218 GB, free: 1.57 MB / 382.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.000311/0.3946, allocations: 69.17 kB / 0.5219 GB, free: 1.539 MB / 382.1 MB Notification: Performance of NFFlatten.flatten: time 0.0004805/0.395, allocations: 317 kB / 0.5222 GB, free: 1.406 MB / 382.1 MB Notification: Performance of NFFlatten.resolveConnections: time 8.828e-05/0.3951, allocations: 37.64 kB / 0.5222 GB, free: 1.387 MB / 382.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.000272/0.3954, allocations: 127.4 kB / 0.5224 GB, free: 1.332 MB / 382.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.0002868/0.3957, allocations: 141.5 kB / 0.5225 GB, free: 1.277 MB / 382.1 MB Notification: Performance of NFPackage.collectConstants: time 4.269e-05/0.3958, allocations: 11.31 kB / 0.5225 GB, free: 1.273 MB / 382.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.0003553/0.3961, allocations: 130.9 kB / 0.5226 GB, free: 1.227 MB / 382.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0001369/0.3963, allocations: 61.73 kB / 0.5227 GB, free: 1.207 MB / 382.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0001642/0.3964, allocations: 111 kB / 0.5228 GB, free: 1.141 MB / 382.1 MB Notification: Performance of NFConvertDAE.convert: time 0.0006107/0.3971, allocations: 352.4 kB / 0.5231 GB, free: 1 MB / 382.1 MB Notification: Performance of FrontEnd - DAE generated: time 5.381e-06/0.3971, allocations: 1.344 kB / 0.5231 GB, free: 1 MB / 382.1 MB Notification: Performance of FrontEnd: time 2.144e-06/0.3971, allocations: 0 / 0.5231 GB, free: 1 MB / 382.1 MB Notification: Performance of Transformations before backend: time 1.274e-05/0.3971, allocations: 0.5156 kB / 0.5231 GB, free: 1 MB / 382.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 75 * Number of variables: 75 Notification: Performance of Generate backend data structure: time 0.001031/0.3981, allocations: 0.5627 MB / 0.5237 GB, free: 0.5234 MB / 382.1 MB Notification: Performance of prepare preOptimizeDAE: time 3.719e-05/0.3982, allocations: 8.844 kB / 0.5237 GB, free: 0.5234 MB / 382.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 8.281e-05/0.3983, allocations: 31.42 kB / 0.5237 GB, free: 0.5078 MB / 382.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0002737/0.3986, allocations: 249.7 kB / 0.524 GB, free: 280 kB / 382.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 1.658e-05/0.3986, allocations: 21.75 kB / 0.524 GB, free: 268 kB / 382.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 3.955e-05/0.3986, allocations: 28.64 kB / 0.524 GB, free: 256 kB / 382.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0006574/0.3993, allocations: 388.7 kB / 0.5244 GB, free: 124 kB / 382.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 1.387e-05/0.3993, allocations: 4 kB / 0.5244 GB, free: 120 kB / 382.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.748e-05/0.3993, allocations: 14.66 kB / 0.5244 GB, free: 108 kB / 382.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.814e-05/0.3994, allocations: 27.69 kB / 0.5244 GB, free: 108 kB / 382.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0007252/0.4001, allocations: 410.9 kB / 0.5248 GB, free: 8 kB / 382.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001694/0.4018, allocations: 0.8703 MB / 0.5257 GB, free: 15.52 MB / 398.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.0005814/0.4024, allocations: 277.9 kB / 0.5259 GB, free: 15.4 MB / 398.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.000196/0.4026, allocations: 95.77 kB / 0.526 GB, free: 15.36 MB / 398.1 MB Notification: Performance of preOpt evalFunc (simulation): time 3.268e-05/0.4027, allocations: 9.375 kB / 0.526 GB, free: 15.35 MB / 398.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.138e-05/0.4027, allocations: 31.94 kB / 0.5261 GB, free: 15.31 MB / 398.1 MB Notification: Performance of pre-optimization done (n=15): time 1.473e-06/0.4027, allocations: 0 / 0.5261 GB, free: 15.31 MB / 398.1 MB Notification: Performance of matching and sorting (n=15): time 0.0007401/0.4035, allocations: 340.3 kB / 0.5264 GB, free: 15.16 MB / 398.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 3.715e-05/0.4035, allocations: 58.06 kB / 0.5264 GB, free: 15.09 MB / 398.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0003748/0.4039, allocations: 349.9 kB / 0.5268 GB, free: 14.88 MB / 398.1 MB Notification: Performance of collectPreVariables (initialization): time 2.6e-05/0.4039, allocations: 31.05 kB / 0.5268 GB, free: 14.84 MB / 398.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0001355/0.4041, allocations: 154.5 kB / 0.527 GB, free: 14.7 MB / 398.1 MB Notification: Performance of collectInitialBindings (initialization): time 5.826e-05/0.4041, allocations: 54.11 kB / 0.527 GB, free: 14.65 MB / 398.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 8.306e-05/0.4042, allocations: 50.16 kB / 0.5271 GB, free: 14.61 MB / 398.1 MB Notification: Performance of setup shared object (initialization): time 0.0001365/0.4044, allocations: 347.4 kB / 0.5274 GB, free: 14.27 MB / 398.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002081/0.4046, allocations: 91.16 kB / 0.5275 GB, free: 14.24 MB / 398.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0002299/0.4048, allocations: 137.8 kB / 0.5276 GB, free: 14.14 MB / 398.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.0004615/0.4053, allocations: 248 kB / 0.5278 GB, free: 14 MB / 398.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.504e-06/0.4053, allocations: 1.375 kB / 0.5278 GB, free: 14 MB / 398.1 MB Notification: Performance of matching and sorting (n=21) (initialization): time 0.000571/0.4059, allocations: 300.2 kB / 0.5281 GB, free: 13.85 MB / 398.1 MB Notification: Performance of prepare postOptimizeDAE: time 1.765e-05/0.4059, allocations: 9.484 kB / 0.5281 GB, free: 13.85 MB / 398.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.652e-06/0.4059, allocations: 3.188 kB / 0.5281 GB, free: 13.85 MB / 398.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 1.596e-05/0.4059, allocations: 2.406 kB / 0.5281 GB, free: 13.85 MB / 398.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005026/0.4064, allocations: 108.8 kB / 0.5282 GB, free: 13.82 MB / 398.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002145/0.4086, allocations: 3.671 MB / 0.5318 GB, free: 10.17 MB / 398.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002206/0.4088, allocations: 38.86 kB / 0.5319 GB, free: 10.14 MB / 398.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.45e-05/0.4089, allocations: 7.844 kB / 0.5319 GB, free: 10.14 MB / 398.1 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 7 * Number of states: 0 () * Number of discrete variables: 6 (m_flow_IN_con_3[2].target,m_flow_IN_con_3[1].target,m_flow_IN_con_2[2].target,m_flow_IN_con_2[1].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 (21): * Single equations (assignments): 15 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 6 * 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): 6 systems {1, 1, 1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0002361/0.4091, allocations: 178.6 kB / 0.532 GB, free: 9.992 MB / 398.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 6.722e-05/0.4092, allocations: 34.64 kB / 0.5321 GB, free: 9.969 MB / 398.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0006915/0.4099, allocations: 328.6 kB / 0.5324 GB, free: 9.797 MB / 398.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.917e-06/0.4099, allocations: 1.5 kB / 0.5324 GB, free: 9.797 MB / 398.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.867e-06/0.4099, allocations: 4 kB / 0.5324 GB, free: 9.793 MB / 398.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.039e-06/0.4099, allocations: 5.484 kB / 0.5324 GB, free: 9.789 MB / 398.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0004096/0.4103, allocations: 299.7 kB / 0.5327 GB, free: 9.52 MB / 398.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.495e-06/0.4103, allocations: 1.656 kB / 0.5327 GB, free: 9.52 MB / 398.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0004437/0.4108, allocations: 105.4 kB / 0.5328 GB, free: 9.492 MB / 398.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 5.4e-06/0.4108, allocations: 5.641 kB / 0.5328 GB, free: 9.488 MB / 398.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.977e-05/0.4108, allocations: 6.75 kB / 0.5328 GB, free: 9.484 MB / 398.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.002111/0.4129, allocations: 3.667 MB / 0.5364 GB, free: 5.84 MB / 398.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.405e-06/0.413, allocations: 0 / 0.5364 GB, free: 5.84 MB / 398.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0005519/0.4135, allocations: 354.5 kB / 0.5367 GB, free: 5.609 MB / 398.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0001162/0.4136, allocations: 102.6 kB / 0.5368 GB, free: 5.5 MB / 398.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 4.811e-05/0.4137, allocations: 5.469 kB / 0.5368 GB, free: 5.496 MB / 398.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001648/0.4139, allocations: 8.297 kB / 0.5368 GB, free: 5.492 MB / 398.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 6.699e-05/0.4139, allocations: 18.55 kB / 0.5368 GB, free: 5.48 MB / 398.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.149e-05/0.414, allocations: 9.812 kB / 0.5369 GB, free: 5.477 MB / 398.1 MB Notification: Performance of sorting global known variables: time 0.0002737/0.4143, allocations: 260 kB / 0.5371 GB, free: 5.312 MB / 398.1 MB Notification: Performance of sort global known variables: time 1.7e-07/0.4143, allocations: 0 / 0.5371 GB, free: 5.312 MB / 398.1 MB Notification: Performance of remove unused functions: time 0.0003948/0.4147, allocations: 72.12 kB / 0.5372 GB, free: 5.301 MB / 398.1 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 (15): * Single equations (assignments): 9 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 6 * 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): 6 systems {1, 1, 1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.000257/0.4149, allocations: 130.9 kB / 0.5373 GB, free: 5.191 MB / 398.1 MB Notification: Performance of simCode: created initialization part: time 0.0008417/0.4158, allocations: 301.8 kB / 0.5376 GB, free: 5.086 MB / 398.1 MB Notification: Performance of simCode: created event and clocks part: time 3.156e-06/0.4158, allocations: 0 / 0.5376 GB, free: 5.086 MB / 398.1 MB Notification: Performance of simCode: created simulation system equations: time 0.0005946/0.4164, allocations: 194 kB / 0.5378 GB, free: 5.02 MB / 398.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0004158/0.4168, allocations: 63.02 kB / 0.5378 GB, free: 4.984 MB / 398.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001046/0.4179, allocations: 0.5883 MB / 0.5384 GB, free: 4.617 MB / 398.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004384/0.4183, allocations: 0.8002 MB / 0.5392 GB, free: 3.867 MB / 398.1 MB Notification: Performance of simCode: alias equations: time 0.0001677/0.4185, allocations: 64.28 kB / 0.5392 GB, free: 3.844 MB / 398.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 5.691e-05/0.4186, allocations: 27.59 kB / 0.5393 GB, free: 3.832 MB / 398.1 MB Notification: Performance of SimCode: time 2.41e-07/0.4186, allocations: 1.031 kB / 0.5393 GB, free: 3.832 MB / 398.1 MB Notification: Performance of Templates: time 0.01098/0.4296, allocations: 5.493 MB / 0.5446 GB, free: 1.098 MB / 398.1 MB make -j1 -f ModelicaTest_4.0.0_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.General.kc_approxForcedConvection_KC.makefile (rm -f ModelicaTest_4.0.0_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.General.kc_approxForcedConvection_KC.pipe ; mkfifo ModelicaTest_4.0.0_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.General.kc_approxForcedConvection_KC.pipe ; head -c 1048576 < ModelicaTest_4.0.0_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.General.kc_approxForcedConvection_KC.pipe >> ../files/ModelicaTest_4.0.0_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.General.kc_approxForcedConvection_KC.sim & ./ModelicaTest_4.0.0_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.General.kc_approxForcedConvection_KC -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS > ModelicaTest_4.0.0_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.General.kc_approxForcedConvection_KC.pipe 2>&1) diffSimulationResults("ModelicaTest_4.0.0_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.General.kc_approxForcedConvection_KC_res.mat","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v4.0.0/ModelicaTest/Fluid/Dissipation/Verifications/HeatTransfer/General/kc_approxForcedConvection_KC/kc_approxForcedConvection_KC.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/ModelicaTest_4.0.0_ModelicaTest.Fluid.Dissipation.Verifications.HeatTransfer.General.kc_approxForcedConvection_KC.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches