Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_9_Buildings.Fluid.Actuators.Valves.Examples.TwoWayValvesTable.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/Buildings 9.1.2-maint.9.1.x/package.mo", uses=false) Using package Buildings with version 9.1.2 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 9.1.2-maint.9.1.x/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(Buildings.Fluid.Actuators.Valves.Examples.TwoWayValvesTable,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|valTab.m_flow|valLin.m_flow",fileNamePrefix="Buildings_9_Buildings.Fluid.Actuators.Valves.Examples.TwoWayValvesTable") translateModel(Buildings.Fluid.Actuators.Valves.Examples.TwoWayValvesTable,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|valTab.m_flow|valLin.m_flow",fileNamePrefix="Buildings_9_Buildings.Fluid.Actuators.Valves.Examples.TwoWayValvesTable") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001788/0.001788, allocations: 109.2 kB / 16.37 MB, free: 6.477 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.00218/0.00218, allocations: 193.1 kB / 17.31 MB, free: 5.824 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.434/1.434, allocations: 222.9 MB / 241 MB, free: 15.18 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 9.1.2-maint.9.1.x/package.mo): time 2.313/2.313, allocations: 390.3 MB / 0.6655 GB, free: 0.5547 MB / 0.5294 GB Notification: Performance of FrontEnd - loaded program: time 0.001274/0.001274, allocations: 65.53 kB / 0.814 GB, free: 32.72 MB / 0.6231 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3124/0.3137, allocations: 140.4 MB / 0.9511 GB, free: 8.027 MB / 0.7325 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Actuators.Valves.Examples.TwoWayValvesTable): time 0.01841/0.3322, allocations: 15.54 MB / 0.9663 GB, free: 8.426 MB / 0.7481 GB Notification: Performance of NFInst.instExpressions: time 0.006984/0.3392, allocations: 4.342 MB / 0.9705 GB, free: 4.07 MB / 0.7481 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0007288/0.34, allocations: 15.88 kB / 0.9706 GB, free: 4.055 MB / 0.7481 GB Notification: Performance of NFTyping.typeComponents: time 0.001039/0.3411, allocations: 258.3 kB / 0.9708 GB, free: 3.801 MB / 0.7481 GB Notification: Performance of NFTyping.typeBindings: time 0.001716/0.3428, allocations: 0.6023 MB / 0.9714 GB, free: 3.195 MB / 0.7481 GB Notification: Performance of NFTyping.typeClassSections: time 0.001978/0.3448, allocations: 0.7119 MB / 0.9721 GB, free: 2.492 MB / 0.7481 GB Notification: Performance of NFFlatten.flatten: time 0.001416/0.3462, allocations: 1.029 MB / 0.9731 GB, free: 1.457 MB / 0.7481 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0004893/0.3467, allocations: 335.8 kB / 0.9734 GB, free: 1.125 MB / 0.7481 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0006999/0.3475, allocations: 426.2 kB / 0.9738 GB, free: 0.707 MB / 0.7481 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0004143/0.3479, allocations: 326.6 kB / 0.9741 GB, free: 396 kB / 0.7481 GB Notification: Performance of NFPackage.collectConstants: time 5.157e-05/0.348, allocations: 28 kB / 0.9742 GB, free: 368 kB / 0.7481 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001155/0.3491, allocations: 0.6317 MB / 0.9748 GB, free: 15.73 MB / 0.7637 GB Notification: Performance of NFScalarize.scalarize: time 0.0001136/0.3492, allocations: 95.61 kB / 0.9749 GB, free: 15.63 MB / 0.7637 GB Notification: Performance of NFVerifyModel.verify: time 0.0002158/0.3495, allocations: 226.7 kB / 0.9751 GB, free: 15.41 MB / 0.7637 GB Notification: Performance of NFConvertDAE.convert: time 0.001019/0.3505, allocations: 0.7633 MB / 0.9758 GB, free: 14.64 MB / 0.7637 GB Notification: Performance of FrontEnd - DAE generated: time 4.659e-06/0.3505, allocations: 0 / 0.9758 GB, free: 14.64 MB / 0.7637 GB Notification: Performance of FrontEnd: time 2.265e-06/0.3505, allocations: 0 / 0.9758 GB, free: 14.64 MB / 0.7637 GB Notification: Performance of Transformations before backend: time 7.534e-06/0.3505, allocations: 0 / 0.9758 GB, free: 14.64 MB / 0.7637 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 51 * Number of variables: 51 Notification: Performance of Generate backend data structure: time 0.001223/0.3518, allocations: 0.8291 MB / 0.9766 GB, free: 13.76 MB / 0.7637 GB Notification: Performance of prepare preOptimizeDAE: time 3.803e-05/0.3518, allocations: 12.02 kB / 0.9766 GB, free: 13.75 MB / 0.7637 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0001057/0.3519, allocations: 56.28 kB / 0.9767 GB, free: 13.7 MB / 0.7637 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0006719/0.3526, allocations: 437.3 kB / 0.9771 GB, free: 13.23 MB / 0.7637 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.606e-05/0.3526, allocations: 20.44 kB / 0.9771 GB, free: 13.21 MB / 0.7637 GB Notification: Performance of preOpt expandDerOperator (simulation): time 4.389e-05/0.3527, allocations: 28 kB / 0.9772 GB, free: 13.18 MB / 0.7637 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0004404/0.3531, allocations: 219.2 kB / 0.9774 GB, free: 12.96 MB / 0.7637 GB Notification: Performance of preOpt findStateOrder (simulation): time 9.728e-06/0.3532, allocations: 0 / 0.9774 GB, free: 12.96 MB / 0.7637 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.222e-05/0.3532, allocations: 11.98 kB / 0.9774 GB, free: 12.95 MB / 0.7637 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 7.283e-06/0.3532, allocations: 4 kB / 0.9774 GB, free: 12.94 MB / 0.7637 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0003595/0.3536, allocations: 165.6 kB / 0.9775 GB, free: 12.78 MB / 0.7637 GB Warning: The model contains alias variables with redundant start and/or conflicting nominal values. It is recommended to resolve the conflicts, because otherwise the system could be hard to solve. To print the conflicting alias sets and the chosen candidates please use -d=aliasConflicts. Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001625/0.3552, allocations: 0.934 MB / 0.9785 GB, free: 11.77 MB / 0.7637 GB Notification: Performance of preOpt comSubExp (simulation): time 0.000307/0.3555, allocations: 134.5 kB / 0.9786 GB, free: 11.63 MB / 0.7637 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0001562/0.3557, allocations: 76.81 kB / 0.9787 GB, free: 11.55 MB / 0.7637 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0003105/0.356, allocations: 340.5 kB / 0.979 GB, free: 11.14 MB / 0.7637 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.069e-05/0.356, allocations: 34.56 kB / 0.979 GB, free: 11.1 MB / 0.7637 GB Notification: Performance of pre-optimization done (n=14): time 1.382e-06/0.356, allocations: 0 / 0.979 GB, free: 11.1 MB / 0.7637 GB Notification: Performance of matching and sorting (n=14): time 0.0006139/0.3567, allocations: 241 kB / 0.9792 GB, free: 10.86 MB / 0.7637 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.675e-05/0.3567, allocations: 51.41 kB / 0.9793 GB, free: 10.8 MB / 0.7637 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0005061/0.3572, allocations: 478 kB / 0.9798 GB, free: 10.32 MB / 0.7637 GB Notification: Performance of collectPreVariables (initialization): time 3.949e-05/0.3573, allocations: 25.7 kB / 0.9798 GB, free: 10.29 MB / 0.7637 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001937/0.3575, allocations: 236.5 kB / 0.98 GB, free: 10.05 MB / 0.7637 GB Notification: Performance of collectInitialBindings (initialization): time 3.781e-05/0.3575, allocations: 51.23 kB / 0.9801 GB, free: 10 MB / 0.7637 GB Notification: Performance of simplifyInitialFunctions (initialization): time 8.843e-05/0.3576, allocations: 53.7 kB / 0.9801 GB, free: 9.945 MB / 0.7637 GB Notification: Performance of setup shared object (initialization): time 0.0001664/0.3578, allocations: 358.7 kB / 0.9804 GB, free: 9.586 MB / 0.7637 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0001738/0.358, allocations: 80.67 kB / 0.9805 GB, free: 9.504 MB / 0.7637 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0002568/0.3582, allocations: 144.3 kB / 0.9807 GB, free: 9.336 MB / 0.7637 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0003181/0.3586, allocations: 168.3 kB / 0.9808 GB, free: 9.164 MB / 0.7637 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.364e-06/0.3586, allocations: 0 / 0.9808 GB, free: 9.164 MB / 0.7637 GB Notification: Performance of matching and sorting (n=24) (initialization): time 0.0005005/0.3591, allocations: 259.2 kB / 0.9811 GB, free: 8.906 MB / 0.7637 GB Notification: Performance of prepare postOptimizeDAE: time 2.002e-05/0.3591, allocations: 4 kB / 0.9811 GB, free: 8.902 MB / 0.7637 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.059e-05/0.3591, allocations: 3.984 kB / 0.9811 GB, free: 8.898 MB / 0.7637 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.324e-05/0.3592, allocations: 4.094 kB / 0.9811 GB, free: 8.895 MB / 0.7637 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002292/0.3594, allocations: 55.83 kB / 0.9811 GB, free: 8.84 MB / 0.7637 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 8.997e-06/0.3594, allocations: 8 kB / 0.9811 GB, free: 8.832 MB / 0.7637 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0003065/0.3597, allocations: 31.81 kB / 0.9812 GB, free: 8.801 MB / 0.7637 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.546e-05/0.3598, allocations: 12 kB / 0.9812 GB, free: 8.789 MB / 0.7637 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0002659/0.36, allocations: 188.1 kB / 0.9814 GB, free: 8.602 MB / 0.7637 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0002361/0.3603, allocations: 159.4 kB / 0.9815 GB, free: 8.414 MB / 0.7637 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0003175/0.3606, allocations: 176.1 kB / 0.9817 GB, free: 8.227 MB / 0.7637 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.133e-06/0.3606, allocations: 4 kB / 0.9817 GB, free: 8.223 MB / 0.7637 GB Notification: Performance of matching and sorting (n=24) (initialization_lambda0): time 0.0004701/0.3611, allocations: 247.9 kB / 0.9819 GB, free: 7.977 MB / 0.7637 GB Notification: Performance of prepare postOptimizeDAE: time 9.638e-06/0.3611, allocations: 8 kB / 0.9819 GB, free: 7.969 MB / 0.7637 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.763e-06/0.3611, allocations: 0 / 0.9819 GB, free: 7.969 MB / 0.7637 GB Notification: Performance of postOpt tearingSystem (initialization): time 5.36e-06/0.3611, allocations: 7.984 kB / 0.9819 GB, free: 7.961 MB / 0.7637 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000192/0.3613, allocations: 43.92 kB / 0.982 GB, free: 7.918 MB / 0.7637 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 4.328e-06/0.3613, allocations: 7.984 kB / 0.982 GB, free: 7.91 MB / 0.7637 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0003005/0.3616, allocations: 31.98 kB / 0.982 GB, free: 7.879 MB / 0.7637 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.276e-05/0.3617, allocations: 11.98 kB / 0.982 GB, free: 7.867 MB / 0.7637 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 3 * 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 (24): * Single equations (assignments): 24 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * 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 0.0001276/0.3618, allocations: 196.1 kB / 0.9822 GB, free: 7.668 MB / 0.7637 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 7.075e-05/0.3619, allocations: 43.44 kB / 0.9823 GB, free: 7.625 MB / 0.7637 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0005497/0.3624, allocations: 249.2 kB / 0.9825 GB, free: 7.371 MB / 0.7637 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 9.037e-06/0.3625, allocations: 4 kB / 0.9825 GB, free: 7.367 MB / 0.7637 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.819e-06/0.3625, allocations: 0 / 0.9825 GB, free: 7.367 MB / 0.7637 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.837e-06/0.3625, allocations: 0 / 0.9825 GB, free: 7.367 MB / 0.7637 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001024/0.3635, allocations: 0.7006 MB / 0.9832 GB, free: 6.598 MB / 0.7637 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.262e-06/0.3635, allocations: 4.312 kB / 0.9832 GB, free: 6.594 MB / 0.7637 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001212/0.3637, allocations: 39.84 kB / 0.9832 GB, free: 6.555 MB / 0.7637 GB Notification: Performance of postOpt tearingSystem (simulation): time 4.509e-06/0.3637, allocations: 7.938 kB / 0.9832 GB, free: 6.547 MB / 0.7637 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.31e-05/0.3637, allocations: 0 / 0.9832 GB, free: 6.547 MB / 0.7637 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 4.769e-06/0.3637, allocations: 7.938 kB / 0.9832 GB, free: 6.539 MB / 0.7637 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.392e-06/0.3637, allocations: 0 / 0.9832 GB, free: 6.539 MB / 0.7637 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0004534/0.3642, allocations: 348.6 kB / 0.9836 GB, free: 6.172 MB / 0.7637 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001563/0.3643, allocations: 136.6 kB / 0.9837 GB, free: 6.02 MB / 0.7637 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 4.875e-05/0.3644, allocations: 4 kB / 0.9837 GB, free: 6.016 MB / 0.7637 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001969/0.3646, allocations: 15.92 kB / 0.9837 GB, free: 6 MB / 0.7637 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 5.165e-05/0.3646, allocations: 15.98 kB / 0.9837 GB, free: 5.984 MB / 0.7637 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 1.613e-05/0.3647, allocations: 11.98 kB / 0.9837 GB, free: 5.973 MB / 0.7637 GB Notification: Performance of sorting global known variables: time 0.0003693/0.365, allocations: 334.9 kB / 0.9841 GB, free: 5.648 MB / 0.7637 GB Notification: Performance of sort global known variables: time 1.5e-07/0.365, allocations: 0 / 0.9841 GB, free: 5.648 MB / 0.7637 GB Notification: Performance of remove unused functions: time 0.0006709/0.3657, allocations: 203.6 kB / 0.9843 GB, free: 5.449 MB / 0.7637 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * 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 (16): * Single equations (assignments): 14 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 2 * 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 0.001107/0.3668, allocations: 485 kB / 0.9847 GB, free: 5.109 MB / 0.7637 GB Notification: Performance of simCode: created initialization part: time 0.0006638/0.3675, allocations: 263.7 kB / 0.985 GB, free: 4.852 MB / 0.7637 GB Notification: Performance of simCode: created event and clocks part: time 2.264e-06/0.3675, allocations: 8.062 kB / 0.985 GB, free: 4.844 MB / 0.7637 GB Notification: Performance of simCode: created simulation system equations: time 0.0001849/0.3677, allocations: 83.89 kB / 0.9851 GB, free: 4.762 MB / 0.7637 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0009186/0.3686, allocations: 196.9 kB / 0.9853 GB, free: 4.578 MB / 0.7637 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.00122/0.3699, allocations: 0.6896 MB / 0.9859 GB, free: 3.848 MB / 0.7637 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004041/0.3703, allocations: 0.8385 MB / 0.9867 GB, free: 2.98 MB / 0.7637 GB Notification: Performance of simCode: alias equations: time 0.0002774/0.3706, allocations: 91.52 kB / 0.9868 GB, free: 2.891 MB / 0.7637 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 8.126e-05/0.3707, allocations: 39.42 kB / 0.9869 GB, free: 2.852 MB / 0.7637 GB Notification: Performance of SimCode: time 3.7e-07/0.3707, allocations: 0 / 0.9869 GB, free: 2.852 MB / 0.7637 GB Notification: Performance of Templates: time 0.01543/0.3861, allocations: 8.474 MB / 0.9951 GB, free: 10.51 MB / 0.7794 GB make -j1 -f Buildings_9_Buildings.Fluid.Actuators.Valves.Examples.TwoWayValvesTable.makefile (rm -f Buildings_9_Buildings.Fluid.Actuators.Valves.Examples.TwoWayValvesTable.pipe ; mkfifo Buildings_9_Buildings.Fluid.Actuators.Valves.Examples.TwoWayValvesTable.pipe ; head -c 1048576 < Buildings_9_Buildings.Fluid.Actuators.Valves.Examples.TwoWayValvesTable.pipe >> ../files/Buildings_9_Buildings.Fluid.Actuators.Valves.Examples.TwoWayValvesTable.sim & ./Buildings_9_Buildings.Fluid.Actuators.Valves.Examples.TwoWayValvesTable -abortSlowSimulation -alarm=480 -s cvode -emit_protected -lv LOG_STATS > Buildings_9_Buildings.Fluid.Actuators.Valves.Examples.TwoWayValvesTable.pipe 2>&1) diffSimulationResults("Buildings_9_Buildings.Fluid.Actuators.Valves.Examples.TwoWayValvesTable_res.mat","/mnt/ReferenceFiles/Buildings/csv/maint_9.1.x/Buildings_Fluid_Actuators_Valves_Examples_TwoWayValvesTable.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_9_Buildings.Fluid.Actuators.Valves.Examples.TwoWayValvesTable.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches