Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesAir.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 11.0.1-master/package.mo", uses=false) Using package Buildings with version 11.0.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.0.1-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(Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesAir,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|vol.p|vol1.p|vol.T|vol1.T",fileNamePrefix="Buildings_latest_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesAir") translateModel(Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesAir,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|vol.p|vol1.p|vol.T|vol1.T",fileNamePrefix="Buildings_latest_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesAir") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001079/0.001079, allocations: 98.03 kB / 15.36 MB, free: 0.7344 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.008625/0.008625, allocations: 168.9 kB / 16.26 MB, free: 6.648 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.391/1.391, allocations: 223.3 MB / 240.3 MB, free: 5.32 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.0.1-master/package.mo): time 2.73/2.73, allocations: 462.7 MB / 0.7364 GB, free: 304 kB / 0.5762 GB Notification: Performance of FrontEnd - loaded program: time 0.0003825/0.0003825, allocations: 14.2 kB / 0.9028 GB, free: 36.64 MB / 0.7169 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3333/0.3337, allocations: 159.6 MB / 1.059 GB, free: 5.539 MB / 0.8106 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesAir): time 0.2145/0.5483, allocations: 183.3 MB / 1.238 GB, free: 13.6 MB / 0.9981 GB Notification: Performance of NFInst.instExpressions: time 0.01703/0.5653, allocations: 6.328 MB / 1.244 GB, free: 7.254 MB / 0.9981 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002431/0.5678, allocations: 27.81 kB / 1.244 GB, free: 7.227 MB / 0.9981 GB Notification: Performance of NFTyping.typeComponents: time 0.002233/0.5701, allocations: 441.8 kB / 1.244 GB, free: 6.793 MB / 0.9981 GB Notification: Performance of NFTyping.typeBindings: time 0.008414/0.5785, allocations: 1.708 MB / 1.246 GB, free: 5.078 MB / 0.9981 GB Notification: Performance of NFTyping.typeClassSections: time 0.005275/0.5838, allocations: 0.8579 MB / 1.247 GB, free: 4.227 MB / 0.9981 GB Notification: Performance of NFFlatten.flatten: time 0.008786/0.5926, allocations: 3.32 MB / 1.25 GB, free: 0.9023 MB / 0.9981 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001772/0.5945, allocations: 0.6006 MB / 1.251 GB, free: 296 kB / 0.9981 GB Notification: Performance of NFEvalConstants.evaluate: time 0.6568/1.251, allocations: 0.7574 MB / 1.251 GB, free: 4.895 MB / 0.9981 GB Notification: Performance of NFSimplifyModel.simplify: time 0.002266/1.254, allocations: 0.7099 MB / 1.252 GB, free: 4.895 MB / 0.9981 GB Notification: Performance of NFPackage.collectConstants: time 0.0001473/1.254, allocations: 31.62 kB / 1.252 GB, free: 4.895 MB / 0.9981 GB Notification: Performance of NFFlatten.collectFunctions: time 0.004119/1.258, allocations: 2.098 MB / 1.254 GB, free: 4.895 MB / 0.9981 GB Notification: Performance of NFScalarize.scalarize: time 0.0004268/1.258, allocations: 292.6 kB / 1.254 GB, free: 4.895 MB / 0.9981 GB Notification: Performance of NFVerifyModel.verify: time 0.0006767/1.259, allocations: 476.1 kB / 1.255 GB, free: 4.863 MB / 0.9981 GB Notification: Performance of NFConvertDAE.convert: time 0.002993/1.262, allocations: 1.962 MB / 1.257 GB, free: 4.816 MB / 0.9981 GB Notification: Performance of FrontEnd - DAE generated: time 5.45e-06/1.262, allocations: 0 / 1.257 GB, free: 4.816 MB / 0.9981 GB Notification: Performance of FrontEnd: time 2.665e-06/1.262, allocations: 3 kB / 1.257 GB, free: 4.816 MB / 0.9981 GB Notification: Performance of Transformations before backend: time 1.749e-05/1.262, allocations: 0 / 1.257 GB, free: 4.816 MB / 0.9981 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 148 * Number of variables: 148 Notification: Performance of Generate backend data structure: time 0.002161/1.264, allocations: 1.115 MB / 1.258 GB, free: 20.13 MB / 1.014 GB Notification: Performance of prepare preOptimizeDAE: time 4.048e-05/1.264, allocations: 7.969 kB / 1.258 GB, free: 20.13 MB / 1.014 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002126/1.266, allocations: 301.8 kB / 1.258 GB, free: 20.09 MB / 1.014 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001197/1.268, allocations: 0.7216 MB / 1.259 GB, free: 19.78 MB / 1.014 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.096e-05/1.268, allocations: 47.69 kB / 1.259 GB, free: 19.78 MB / 1.014 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001017/1.268, allocations: 59.2 kB / 1.259 GB, free: 19.78 MB / 1.014 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001113/1.269, allocations: 0.6232 MB / 1.26 GB, free: 19.73 MB / 1.014 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.149e-05/1.269, allocations: 1.875 kB / 1.26 GB, free: 19.73 MB / 1.014 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 6.304e-05/1.269, allocations: 26.44 kB / 1.26 GB, free: 19.73 MB / 1.014 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.193e-05/1.269, allocations: 26.19 kB / 1.26 GB, free: 19.73 MB / 1.014 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0008636/1.27, allocations: 0.553 MB / 1.26 GB, free: 19.72 MB / 1.014 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 0.003646/1.274, allocations: 2.775 MB / 1.263 GB, free: 18.3 MB / 1.014 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0007482/1.274, allocations: 468.4 kB / 1.263 GB, free: 18.27 MB / 1.014 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0003506/1.275, allocations: 267.4 kB / 1.264 GB, free: 18.26 MB / 1.014 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0001948/1.275, allocations: 101.2 kB / 1.264 GB, free: 18.16 MB / 1.014 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.182e-05/1.275, allocations: 44.39 kB / 1.264 GB, free: 18.12 MB / 1.014 GB Notification: Performance of pre-optimization done (n=46): time 3.106e-06/1.275, allocations: 0 / 1.264 GB, free: 18.12 MB / 1.014 GB Notification: Performance of matching and sorting (n=49): time 0.002893/1.278, allocations: 1.538 MB / 1.265 GB, free: 17.69 MB / 1.014 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.077e-05/1.278, allocations: 57.78 kB / 1.265 GB, free: 17.62 MB / 1.014 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0006196/1.278, allocations: 0.5522 MB / 1.266 GB, free: 17.5 MB / 1.014 GB Notification: Performance of collectPreVariables (initialization): time 5.119e-05/1.279, allocations: 36.42 kB / 1.266 GB, free: 17.46 MB / 1.014 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002264/1.279, allocations: 360 kB / 1.266 GB, free: 17.3 MB / 1.014 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001497/1.279, allocations: 174.2 kB / 1.266 GB, free: 17.19 MB / 1.014 GB Notification: Performance of simplifyInitialFunctions (initialization): time 6.973e-05/1.279, allocations: 49.31 kB / 1.266 GB, free: 17.17 MB / 1.014 GB Notification: Performance of setup shared object (initialization): time 0.0001978/1.279, allocations: 375.8 kB / 1.267 GB, free: 16.86 MB / 1.014 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003359/1.28, allocations: 192 kB / 1.267 GB, free: 16.86 MB / 1.014 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004294/1.28, allocations: 282.4 kB / 1.267 GB, free: 16.78 MB / 1.014 GB Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: vol.dynBal.medium.p = vol.dynBal.p_start (vol1.dynBal.p_start = vol.dynBal.p_start) Notification: Performance of analyzeInitialSystem (initialization): time 0.003285/1.283, allocations: 1.257 MB / 1.268 GB, free: 16.59 MB / 1.014 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.165e-06/1.283, allocations: 0.9062 kB / 1.268 GB, free: 16.59 MB / 1.014 GB Notification: Performance of matching and sorting (n=60) (initialization): time 0.001268/1.285, allocations: 0.5984 MB / 1.269 GB, free: 16.5 MB / 1.014 GB Notification: Performance of prepare postOptimizeDAE: time 0.0001042/1.285, allocations: 145.5 kB / 1.269 GB, free: 16.35 MB / 1.014 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.195e-05/1.285, allocations: 4.391 kB / 1.269 GB, free: 16.35 MB / 1.014 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0001825/1.285, allocations: 41.86 kB / 1.269 GB, free: 16.34 MB / 1.014 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006082/1.286, allocations: 111 kB / 1.269 GB, free: 16.34 MB / 1.014 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001717/1.287, allocations: 2.101 MB / 1.271 GB, free: 14.41 MB / 1.014 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009347/1.288, allocations: 58.12 kB / 1.271 GB, free: 14.4 MB / 1.014 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.571e-05/1.288, allocations: 18.17 kB / 1.271 GB, free: 14.4 MB / 1.014 GB Notification: Performance of prepare postOptimizeDAE: time 9.788e-06/1.288, allocations: 7.578 kB / 1.271 GB, free: 14.4 MB / 1.014 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.0009204/1.289, allocations: 0.5284 MB / 1.272 GB, free: 14.38 MB / 1.014 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.1e-06/1.289, allocations: 2.141 kB / 1.272 GB, free: 14.38 MB / 1.014 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0001124/1.289, allocations: 36.02 kB / 1.272 GB, free: 14.37 MB / 1.014 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004075/1.29, allocations: 98.98 kB / 1.272 GB, free: 14.37 MB / 1.014 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001271/1.291, allocations: 1.507 MB / 1.274 GB, free: 13.04 MB / 1.014 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009363/1.292, allocations: 64.62 kB / 1.274 GB, free: 13.02 MB / 1.014 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.263e-05/1.292, allocations: 18.16 kB / 1.274 GB, free: 13.02 MB / 1.014 GB Warning: The initial conditions are over specified. The following 1 initial equations are redundant, so they are removed from the initialization sytem: vol.dynBal.medium.p = vol.dynBal.p_start. Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 8 * 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 (57): * Single equations (assignments): 55 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 1 * 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): 1 system {1} * Without analytic Jacobian (size): 0 systems Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(1,3,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0006405/1.293, allocations: 329.9 kB / 1.274 GB, free: 12.84 MB / 1.014 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.000136/1.293, allocations: 69.56 kB / 1.274 GB, free: 12.8 MB / 1.014 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001132/1.294, allocations: 0.5717 MB / 1.275 GB, free: 12.73 MB / 1.014 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.026e-05/1.294, allocations: 7.609 kB / 1.275 GB, free: 12.73 MB / 1.014 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.22e-06/1.294, allocations: 5.531 kB / 1.275 GB, free: 12.73 MB / 1.014 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.00106/1.295, allocations: 0.7945 MB / 1.275 GB, free: 12.28 MB / 1.014 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.003192/1.298, allocations: 1.574 MB / 1.277 GB, free: 11.85 MB / 1.014 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.503e-06/1.298, allocations: 1.594 kB / 1.277 GB, free: 11.85 MB / 1.014 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0007438/1.299, allocations: 126.5 kB / 1.277 GB, free: 11.85 MB / 1.014 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0001581/1.299, allocations: 28.11 kB / 1.277 GB, free: 11.84 MB / 1.014 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.179e-05/1.299, allocations: 14.05 kB / 1.277 GB, free: 11.84 MB / 1.014 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001555/1.301, allocations: 1.957 MB / 1.279 GB, free: 10 MB / 1.014 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.867e-06/1.301, allocations: 6 kB / 1.279 GB, free: 9.996 MB / 1.014 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.00143/1.302, allocations: 0.9043 MB / 1.28 GB, free: 9.777 MB / 1.014 GB Notification: Performance of postOpt removeConstants (simulation): time 0.000418/1.303, allocations: 203.4 kB / 1.28 GB, free: 9.645 MB / 1.014 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 7.821e-05/1.303, allocations: 11.03 kB / 1.28 GB, free: 9.645 MB / 1.014 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.000636/1.303, allocations: 46.48 kB / 1.28 GB, free: 9.641 MB / 1.014 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 7.843e-05/1.304, allocations: 29.89 kB / 1.28 GB, free: 9.641 MB / 1.014 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 3.737e-05/1.304, allocations: 17.55 kB / 1.28 GB, free: 9.641 MB / 1.014 GB Notification: Performance of sorting global known variables: time 0.0005723/1.304, allocations: 401.9 kB / 1.281 GB, free: 9.547 MB / 1.014 GB Notification: Performance of sort global known variables: time 1.21e-07/1.304, allocations: 1.219 kB / 1.281 GB, free: 9.547 MB / 1.014 GB Notification: Performance of remove unused functions: time 0.001426/1.306, allocations: 378.4 kB / 1.281 GB, free: 9.539 MB / 1.014 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * Number of states: 5 (vol.dynBal.medium.Xi[1],vol.dynBal.U,vol1.dynBal.medium.Xi[1],vol1.dynBal.U,vol1.dynBal.m) * 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 (47): * Single equations (assignments): 45 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 1 * 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): 1 system {1} * Without analytic Jacobian (size): 0 systems Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(1,2,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.0005194/1.306, allocations: 205 kB / 1.281 GB, free: 9.438 MB / 1.014 GB Notification: Performance of simCode: created initialization part: time 0.002063/1.308, allocations: 1.013 MB / 1.282 GB, free: 9.195 MB / 1.014 GB Notification: Performance of simCode: created event and clocks part: time 6.191e-06/1.308, allocations: 1.156 kB / 1.282 GB, free: 9.195 MB / 1.014 GB Notification: Performance of simCode: created simulation system equations: time 0.0006303/1.309, allocations: 386.4 kB / 1.282 GB, free: 9.078 MB / 1.014 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002554/1.311, allocations: 476 kB / 1.283 GB, free: 9.051 MB / 1.014 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003024/1.314, allocations: 2.01 MB / 1.285 GB, free: 7.965 MB / 1.014 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0007508/1.315, allocations: 1.013 MB / 1.286 GB, free: 7.25 MB / 1.014 GB Notification: Performance of simCode: alias equations: time 0.00115/1.316, allocations: 218.6 kB / 1.286 GB, free: 7.207 MB / 1.014 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.000196/1.317, allocations: 56.08 kB / 1.286 GB, free: 7.203 MB / 1.014 GB Notification: Performance of SimCode: time 1.372e-06/1.317, allocations: 0 / 1.286 GB, free: 7.203 MB / 1.014 GB Notification: Performance of Templates: time 0.02818/1.345, allocations: 15.03 MB / 1.301 GB, free: 6.246 MB / 1.014 GB make -j1 -f Buildings_latest_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesAir.makefile (rm -f Buildings_latest_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesAir.pipe ; mkfifo Buildings_latest_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesAir.pipe ; head -c 1048576 < Buildings_latest_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesAir.pipe >> ../files/Buildings_latest_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesAir.sim & ./Buildings_latest_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesAir -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS > Buildings_latest_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesAir.pipe 2>&1) diffSimulationResults("Buildings_latest_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesAir_res.mat","/mnt/ReferenceFiles/Buildings/csv/master/Buildings_Fluid_MixingVolumes_Validation_CoupledVolumesAir.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_latest_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesAir.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches