Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr ScalableTestSuite_noopt_ScalableTestSuite.Mechanical.HarmonicOscillator.ScaledExperiments.HarmonicOscillatorNetwork_N_20.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/ScalableTestSuite 2.2.0-master/package.mo", uses=false) Using package ScalableTestSuite with version 2.2.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ScalableTestSuite 2.2.0-master/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(ScalableTestSuite.Mechanical.HarmonicOscillator.ScaledExperiments.HarmonicOscillatorNetwork_N_20,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="der.v.1..|der.v.20..|der.v.2..|der.v.3..|der.v.4..|der.v.5..|der.xm.1..|der.xm.20..|der.xm.2..|der.xm.3..|der.xm.4..|der.xm.5..|time|time|v.1.|v.20.|v.2.|v.3.|v.4.|v.5.|xm.1.|xm.20.|xm.2.|xm.3.|xm.4.|xm.5.|xs.1.|xs.20.|xs.2.|xs.3.|xs.4.|xs.5.",fileNamePrefix="ScalableTestSuite_noopt_ScalableTestSuite.Mechanical.HarmonicOscillator.ScaledExperiments.HarmonicOscillatorNetwork_N_20") translateModel(ScalableTestSuite.Mechanical.HarmonicOscillator.ScaledExperiments.HarmonicOscillatorNetwork_N_20,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="der.v.1..|der.v.20..|der.v.2..|der.v.3..|der.v.4..|der.v.5..|der.xm.1..|der.xm.20..|der.xm.2..|der.xm.3..|der.xm.4..|der.xm.5..|time|time|v.1.|v.20.|v.2.|v.3.|v.4.|v.5.|xm.1.|xm.20.|xm.2.|xm.3.|xm.4.|xm.5.|xs.1.|xs.20.|xs.2.|xs.3.|xs.4.|xs.5.",fileNamePrefix="ScalableTestSuite_noopt_ScalableTestSuite.Mechanical.HarmonicOscillator.ScaledExperiments.HarmonicOscillatorNetwork_N_20") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001227/0.001227, allocations: 106.7 kB / 16.62 MB, free: 6.812 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001167/0.001167, allocations: 197.9 kB / 17.55 MB, free: 5.949 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.251/1.251, allocations: 222.9 MB / 241.2 MB, free: 13.7 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ScalableTestSuite 2.2.0-master/package.mo): time 0.8264/0.8264, allocations: 119.3 MB / 410.7 MB, free: 9.742 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.00124/0.00124, allocations: 63.91 kB / 0.4904 GB, free: 14.12 MB / 430.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.4344/0.4357, allocations: 80.67 MB / 0.5692 GB, free: 42.97 MB / 462.3 MB Notification: Performance of NFInst.instantiate(ScalableTestSuite.Mechanical.HarmonicOscillator.ScaledExperiments.HarmonicOscillatorNetwork_N_20): time 0.001892/0.4376, allocations: 1.299 MB / 0.5705 GB, free: 41.95 MB / 462.3 MB Notification: Performance of NFInst.instExpressions: time 0.0001564/0.4378, allocations: 47.42 kB / 0.5705 GB, free: 41.91 MB / 462.3 MB Notification: Performance of NFInst.updateImplicitVariability: time 2.374e-05/0.4378, allocations: 3.938 kB / 0.5705 GB, free: 41.91 MB / 462.3 MB Notification: Performance of NFTyping.typeComponents: time 6.926e-05/0.4379, allocations: 1.281 kB / 0.5705 GB, free: 41.91 MB / 462.3 MB Notification: Performance of NFTyping.typeBindings: time 5.535e-05/0.438, allocations: 7.797 kB / 0.5705 GB, free: 41.91 MB / 462.3 MB Notification: Performance of NFTyping.typeClassSections: time 0.0001332/0.4381, allocations: 13.14 kB / 0.5706 GB, free: 41.9 MB / 462.3 MB Notification: Performance of NFFlatten.flatten: time 0.0003349/0.4384, allocations: 450.1 kB / 0.571 GB, free: 41.66 MB / 462.3 MB Notification: Performance of NFFlatten.resolveConnections: time 4.827e-05/0.4385, allocations: 7.531 kB / 0.571 GB, free: 41.66 MB / 462.3 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0001152/0.4386, allocations: 152.9 kB / 0.5711 GB, free: 41.6 MB / 462.3 MB Notification: Performance of NFSimplifyModel.simplify: time 0.000174/0.4388, allocations: 150.4 kB / 0.5713 GB, free: 41.5 MB / 462.3 MB Notification: Performance of NFPackage.collectConstants: time 4.903e-05/0.4389, allocations: 26.22 kB / 0.5713 GB, free: 41.5 MB / 462.3 MB Notification: Performance of NFFlatten.collectFunctions: time 4.721e-05/0.4389, allocations: 22.19 kB / 0.5713 GB, free: 41.5 MB / 462.3 MB Notification: Performance of NFScalarize.scalarize: time 9.381e-05/0.439, allocations: 133.2 kB / 0.5715 GB, free: 41.41 MB / 462.3 MB Notification: Performance of NFVerifyModel.verify: time 0.0001314/0.4391, allocations: 136.8 kB / 0.5716 GB, free: 41.33 MB / 462.3 MB Notification: Performance of NFConvertDAE.convert: time 0.0001674/0.4393, allocations: 233.9 kB / 0.5718 GB, free: 41.2 MB / 462.3 MB Notification: Performance of FrontEnd - DAE generated: time 3.867e-06/0.4393, allocations: 0 / 0.5718 GB, free: 41.2 MB / 462.3 MB Notification: Performance of FrontEnd: time 1.283e-06/0.4393, allocations: 0 / 0.5718 GB, free: 41.2 MB / 462.3 MB Notification: Performance of Transformations before backend: time 5.731e-06/0.4393, allocations: 0 / 0.5718 GB, free: 41.2 MB / 462.3 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 60 * Number of variables: 60 Notification: Performance of Generate backend data structure: time 0.001317/0.4407, allocations: 0.7593 MB / 0.5726 GB, free: 40.62 MB / 462.3 MB Notification: Performance of prepare preOptimizeDAE: time 3.495e-05/0.4407, allocations: 13.33 kB / 0.5726 GB, free: 40.62 MB / 462.3 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 6.826e-05/0.4408, allocations: 27.88 kB / 0.5726 GB, free: 40.61 MB / 462.3 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0002102/0.441, allocations: 242.6 kB / 0.5728 GB, free: 40.38 MB / 462.3 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.275e-05/0.441, allocations: 28.06 kB / 0.5728 GB, free: 40.36 MB / 462.3 MB Notification: Performance of preOpt expandDerOperator (simulation): time 7.56e-05/0.4411, allocations: 55.89 kB / 0.5729 GB, free: 40.34 MB / 462.3 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0004683/0.4416, allocations: 331.8 kB / 0.5732 GB, free: 40.14 MB / 462.3 MB Notification: Performance of preOpt findStateOrder (simulation): time 2.296e-05/0.4416, allocations: 8.312 kB / 0.5732 GB, free: 40.14 MB / 462.3 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 3.151e-05/0.4416, allocations: 18.59 kB / 0.5732 GB, free: 40.12 MB / 462.3 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 8.506e-06/0.4417, allocations: 5.438 kB / 0.5732 GB, free: 40.12 MB / 462.3 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.000307/0.442, allocations: 220.5 kB / 0.5735 GB, free: 40.03 MB / 462.3 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0004745/0.4424, allocations: 477.7 kB / 0.5739 GB, free: 39.66 MB / 462.3 MB Notification: Performance of preOpt comSubExp (simulation): time 0.0007027/0.4432, allocations: 489.1 kB / 0.5744 GB, free: 39.45 MB / 462.3 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002908/0.4435, allocations: 242.2 kB / 0.5746 GB, free: 39.33 MB / 462.3 MB Notification: Performance of preOpt evalFunc (simulation): time 3.438e-05/0.4435, allocations: 10.09 kB / 0.5746 GB, free: 39.33 MB / 462.3 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 1.838e-05/0.4435, allocations: 42.56 kB / 0.5747 GB, free: 39.28 MB / 462.3 MB Notification: Performance of pre-optimization done (n=60): time 1.533e-06/0.4435, allocations: 0 / 0.5747 GB, free: 39.28 MB / 462.3 MB Notification: Performance of matching and sorting (n=60): time 0.003471/0.447, allocations: 1.255 MB / 0.5759 GB, free: 38.6 MB / 462.3 MB Notification: Performance of inlineWhenForInitialization (initialization): time 2.51e-05/0.4471, allocations: 58.88 kB / 0.5759 GB, free: 38.54 MB / 462.3 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 6.764e-05/0.4471, allocations: 109.4 kB / 0.576 GB, free: 38.43 MB / 462.3 MB Notification: Performance of collectPreVariables (initialization): time 4.238e-05/0.4472, allocations: 41.2 kB / 0.5761 GB, free: 38.39 MB / 462.3 MB Notification: Performance of collectInitialEqns (initialization): time 2.206e-05/0.4472, allocations: 91.3 kB / 0.5762 GB, free: 38.29 MB / 462.3 MB Notification: Performance of collectInitialBindings (initialization): time 0.0001172/0.4473, allocations: 245.4 kB / 0.5764 GB, free: 38.08 MB / 462.3 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001468/0.4475, allocations: 153.3 kB / 0.5766 GB, free: 37.99 MB / 462.3 MB Notification: Performance of setup shared object (initialization): time 5.499e-05/0.4475, allocations: 344.4 kB / 0.5769 GB, free: 37.65 MB / 462.3 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003251/0.4479, allocations: 256.6 kB / 0.5771 GB, free: 37.55 MB / 462.3 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0003837/0.4483, allocations: 424.8 kB / 0.5775 GB, free: 37.24 MB / 462.3 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.000748/0.449, allocations: 0.7231 MB / 0.5782 GB, free: 36.79 MB / 462.3 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.041e-06/0.449, allocations: 1.844 kB / 0.5782 GB, free: 36.79 MB / 462.3 MB Notification: Performance of matching and sorting (n=100) (initialization): time 0.001928/0.451, allocations: 1.012 MB / 0.5792 GB, free: 36.28 MB / 462.3 MB Notification: Performance of prepare postOptimizeDAE: time 2.176e-05/0.451, allocations: 7.375 kB / 0.5792 GB, free: 36.28 MB / 462.3 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.432e-05/0.451, allocations: 4.594 kB / 0.5792 GB, free: 36.28 MB / 462.3 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.001152/0.4522, allocations: 299.1 kB / 0.5795 GB, free: 36.15 MB / 462.3 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000472/0.4527, allocations: 163.9 kB / 0.5797 GB, free: 36.12 MB / 462.3 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003627/0.4563, allocations: 3.129 MB / 0.5827 GB, free: 33.83 MB / 462.3 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002805/0.4566, allocations: 53.34 kB / 0.5828 GB, free: 33.79 MB / 462.3 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.353e-05/0.4566, allocations: 29.56 kB / 0.5828 GB, free: 33.79 MB / 462.3 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 21 * 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 (81): * Single equations (assignments): 80 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(1,19,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0001686/0.4568, allocations: 182.4 kB / 0.583 GB, free: 33.62 MB / 462.3 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 4.727e-05/0.4569, allocations: 21.95 kB / 0.583 GB, free: 33.61 MB / 462.3 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0001267/0.457, allocations: 59.72 kB / 0.5831 GB, free: 33.55 MB / 462.3 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.422e-06/0.457, allocations: 6.469 kB / 0.5831 GB, free: 33.55 MB / 462.3 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.754e-05/0.457, allocations: 2.75 kB / 0.5831 GB, free: 33.55 MB / 462.3 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.731e-06/0.457, allocations: 4.922 kB / 0.5831 GB, free: 33.55 MB / 462.3 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0004381/0.4575, allocations: 454.8 kB / 0.5835 GB, free: 33.21 MB / 462.3 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.164e-06/0.4575, allocations: 4 kB / 0.5835 GB, free: 33.2 MB / 462.3 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.000703/0.4582, allocations: 132.8 kB / 0.5836 GB, free: 33.18 MB / 462.3 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.00114/0.4593, allocations: 293.9 kB / 0.5839 GB, free: 33.05 MB / 462.3 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 5.403e-05/0.4594, allocations: 29.78 kB / 0.584 GB, free: 33.03 MB / 462.3 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.003444/0.4629, allocations: 3.103 MB / 0.587 GB, free: 30.76 MB / 462.3 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.172e-06/0.4629, allocations: 0 / 0.587 GB, free: 30.76 MB / 462.3 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001728/0.4646, allocations: 1.139 MB / 0.5881 GB, free: 29.83 MB / 462.3 MB Notification: Performance of postOpt removeConstants (simulation): time 3.913e-05/0.4647, allocations: 100.8 kB / 0.5882 GB, free: 29.71 MB / 462.3 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 5.752e-05/0.4647, allocations: 31.91 kB / 0.5882 GB, free: 29.68 MB / 462.3 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001804/0.4649, allocations: 16 kB / 0.5882 GB, free: 29.67 MB / 462.3 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 7.937e-05/0.465, allocations: 40.5 kB / 0.5883 GB, free: 29.63 MB / 462.3 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.873e-05/0.465, allocations: 16 kB / 0.5883 GB, free: 29.61 MB / 462.3 MB Notification: Performance of sorting global known variables: time 2.278e-05/0.4651, allocations: 83.27 kB / 0.5884 GB, free: 29.53 MB / 462.3 MB Notification: Performance of sort global known variables: time 1.2e-07/0.4651, allocations: 0 / 0.5884 GB, free: 29.53 MB / 462.3 MB Notification: Performance of remove unused functions: time 0.0004456/0.4655, allocations: 140 kB / 0.5885 GB, free: 29.39 MB / 462.3 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 40 (xm[1],xm[2],xm[3],xm[4],xm[5],xm[6],xm[7],xm[8],xm[9],xm[10],xm[11],xm[12],xm[13],xm[14],xm[15],xm[16],xm[17],xm[18],xm[19],xm[20],v[1],v[2],v[3],v[4],v[5],v[6],v[7],v[8],v[9],v[10],v[11],v[12],v[13],v[14],v[15],v[16],v[17],v[18],v[19],v[20]) * 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 (41): * Single equations (assignments): 40 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(1,19,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.0001157/0.4656, allocations: 135.7 kB / 0.5886 GB, free: 29.25 MB / 462.3 MB Notification: Performance of simCode: created initialization part: time 0.001677/0.4673, allocations: 1.052 MB / 0.5897 GB, free: 28.18 MB / 462.3 MB Notification: Performance of simCode: created event and clocks part: time 2.234e-06/0.4673, allocations: 0 / 0.5897 GB, free: 28.18 MB / 462.3 MB Notification: Performance of simCode: created simulation system equations: time 0.0009052/0.4682, allocations: 0.563 MB / 0.5902 GB, free: 27.61 MB / 462.3 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0002197/0.4685, allocations: 32.06 kB / 0.5902 GB, free: 27.58 MB / 462.3 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.002691/0.4712, allocations: 2.974 MB / 0.5931 GB, free: 24.57 MB / 462.3 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.000176/0.4714, allocations: 0.8089 MB / 0.5939 GB, free: 23.73 MB / 462.3 MB Notification: Performance of simCode: alias equations: time 0.0002383/0.4716, allocations: 143.1 kB / 0.5941 GB, free: 23.6 MB / 462.3 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 6.098e-05/0.4717, allocations: 27.44 kB / 0.5941 GB, free: 23.57 MB / 462.3 MB Notification: Performance of SimCode: time 2.41e-07/0.4717, allocations: 0 / 0.5941 GB, free: 23.57 MB / 462.3 MB Notification: Performance of Templates: time 0.006809/0.4785, allocations: 5.191 MB / 0.5992 GB, free: 18.42 MB / 462.3 MB make -j1 -f ScalableTestSuite_noopt_ScalableTestSuite.Mechanical.HarmonicOscillator.ScaledExperiments.HarmonicOscillatorNetwork_N_20.makefile (rm -f ScalableTestSuite_noopt_ScalableTestSuite.Mechanical.HarmonicOscillator.ScaledExperiments.HarmonicOscillatorNetwork_N_20.pipe ; mkfifo ScalableTestSuite_noopt_ScalableTestSuite.Mechanical.HarmonicOscillator.ScaledExperiments.HarmonicOscillatorNetwork_N_20.pipe ; head -c 1048576 < ScalableTestSuite_noopt_ScalableTestSuite.Mechanical.HarmonicOscillator.ScaledExperiments.HarmonicOscillatorNetwork_N_20.pipe >> ../files/ScalableTestSuite_noopt_ScalableTestSuite.Mechanical.HarmonicOscillator.ScaledExperiments.HarmonicOscillatorNetwork_N_20.sim & ./ScalableTestSuite_noopt_ScalableTestSuite.Mechanical.HarmonicOscillator.ScaledExperiments.HarmonicOscillatorNetwork_N_20 -abortSlowSimulation -alarm=300 -emit_protected -lv LOG_STATS > ScalableTestSuite_noopt_ScalableTestSuite.Mechanical.HarmonicOscillator.ScaledExperiments.HarmonicOscillatorNetwork_N_20.pipe 2>&1) diffSimulationResults("ScalableTestSuite_noopt_ScalableTestSuite.Mechanical.HarmonicOscillator.ScaledExperiments.HarmonicOscillatorNetwork_N_20_res.mat","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/ReferenceFiles/ScalableTestSuite/ScalableTestSuite.Mechanical.HarmonicOscillator.ScaledExperiments.HarmonicOscillatorNetwork_N_20_res.mat","../files/ScalableTestSuite_noopt_ScalableTestSuite.Mechanical.HarmonicOscillator.ScaledExperiments.HarmonicOscillatorNetwork_N_20.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches