Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.Fluid.MixingVolumes.Examples.MixingVolumeMoistAir.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.Examples.MixingVolumeMoistAir,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|vol1.T|vol1.X_w|QSen.u|QLat.u|vol1.p",fileNamePrefix="Buildings_latest_Buildings.Fluid.MixingVolumes.Examples.MixingVolumeMoistAir") translateModel(Buildings.Fluid.MixingVolumes.Examples.MixingVolumeMoistAir,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|vol1.T|vol1.X_w|QSen.u|QLat.u|vol1.p",fileNamePrefix="Buildings_latest_Buildings.Fluid.MixingVolumes.Examples.MixingVolumeMoistAir") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.008658/0.008658, allocations: 102.7 kB / 15.73 MB, free: 6.488 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001834/0.001835, allocations: 195.2 kB / 16.68 MB, free: 6.375 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.387/1.387, allocations: 222.9 MB / 240.4 MB, free: 4.348 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.0.1-master/package.mo): time 2.957/2.957, allocations: 461.9 MB / 0.7348 GB, free: 14.67 MB / 0.5919 GB Notification: Performance of FrontEnd - loaded program: time 0.001554/0.001555, allocations: 63.91 kB / 1.054 GB, free: 7.156 MB / 0.8106 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3992/0.4008, allocations: 157.4 MB / 1.208 GB, free: 9.66 MB / 0.9669 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.MixingVolumes.Examples.MixingVolumeMoistAir): time 0.9785/1.379, allocations: 198.9 MB / 1.402 GB, free: 8.441 MB / 1.092 GB Notification: Performance of NFInst.instExpressions: time 0.01713/1.397, allocations: 10.36 MB / 1.412 GB, free: 4 kB / 1.092 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002481/1.399, allocations: 58.02 kB / 1.412 GB, free: 15.98 MB / 1.107 GB Notification: Performance of NFTyping.typeComponents: time 0.002307/1.401, allocations: 0.5743 MB / 1.413 GB, free: 15.48 MB / 1.107 GB Notification: Performance of NFTyping.typeBindings: time 0.006634/1.408, allocations: 1.977 MB / 1.415 GB, free: 13.95 MB / 1.107 GB Notification: Performance of NFTyping.typeClassSections: time 0.004766/1.413, allocations: 1.379 MB / 1.416 GB, free: 12.91 MB / 1.107 GB Notification: Performance of NFFlatten.flatten: time 0.004992/1.418, allocations: 2.825 MB / 1.419 GB, free: 11.25 MB / 1.107 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002471/1.42, allocations: 1.174 MB / 1.42 GB, free: 10.48 MB / 1.107 GB Notification: Performance of NFEvalConstants.evaluate: time 0.005734/1.426, allocations: 1.688 MB / 1.421 GB, free: 9.441 MB / 1.107 GB Notification: Performance of NFSimplifyModel.simplify: time 0.002712/1.429, allocations: 0.9669 MB / 1.422 GB, free: 8.84 MB / 1.107 GB Notification: Performance of NFPackage.collectConstants: time 0.0005721/1.429, allocations: 120.8 kB / 1.423 GB, free: 8.84 MB / 1.107 GB Notification: Performance of NFFlatten.collectFunctions: time 0.006143/1.436, allocations: 2.151 MB / 1.425 GB, free: 7.664 MB / 1.107 GB Notification: Performance of NFScalarize.scalarize: time 0.0009031/1.437, allocations: 433.8 kB / 1.425 GB, free: 7.352 MB / 1.107 GB Notification: Performance of NFVerifyModel.verify: time 0.002016/1.439, allocations: 0.7123 MB / 1.426 GB, free: 6.859 MB / 1.107 GB Notification: Performance of NFConvertDAE.convert: time 0.007333/1.446, allocations: 2.524 MB / 1.428 GB, free: 5.027 MB / 1.107 GB Notification: Performance of FrontEnd - DAE generated: time 5.751e-06/1.446, allocations: 0 / 1.428 GB, free: 5.027 MB / 1.107 GB Notification: Performance of FrontEnd: time 2.044e-06/1.446, allocations: 0 / 1.428 GB, free: 5.027 MB / 1.107 GB Notification: Performance of Transformations before backend: time 8.459e-05/1.446, allocations: 4 kB / 1.428 GB, free: 5.023 MB / 1.107 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 253 * Number of variables: 253 Notification: Performance of Generate backend data structure: time 0.004628/1.451, allocations: 1.818 MB / 1.43 GB, free: 3.148 MB / 1.107 GB Notification: Performance of prepare preOptimizeDAE: time 4.363e-05/1.451, allocations: 8.031 kB / 1.43 GB, free: 3.141 MB / 1.107 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002618/1.453, allocations: 365.9 kB / 1.43 GB, free: 2.781 MB / 1.107 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002347/1.456, allocations: 0.9714 MB / 1.431 GB, free: 1.766 MB / 1.107 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 7.758e-05/1.456, allocations: 81.94 kB / 1.431 GB, free: 1.688 MB / 1.107 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002312/1.456, allocations: 103.9 kB / 1.431 GB, free: 1.586 MB / 1.107 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002316/1.458, allocations: 1.107 MB / 1.433 GB, free: 428 kB / 1.107 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.33e-05/1.458, allocations: 3.875 kB / 1.433 GB, free: 428 kB / 1.107 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001052/1.459, allocations: 48 kB / 1.433 GB, free: 380 kB / 1.107 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.933e-05/1.459, allocations: 34 kB / 1.433 GB, free: 348 kB / 1.107 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001821/1.46, allocations: 0.8118 MB / 1.433 GB, free: 15.53 MB / 1.123 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 0.007429/1.468, allocations: 5.059 MB / 1.438 GB, free: 10.11 MB / 1.123 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001321/1.469, allocations: 0.7031 MB / 1.439 GB, free: 9.406 MB / 1.123 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0005873/1.47, allocations: 350.4 kB / 1.439 GB, free: 9.062 MB / 1.123 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0006884/1.471, allocations: 323.8 kB / 1.44 GB, free: 8.691 MB / 1.123 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.184e-05/1.471, allocations: 35.12 kB / 1.44 GB, free: 8.645 MB / 1.123 GB Notification: Performance of pre-optimization done (n=70): time 2.895e-06/1.471, allocations: 0 / 1.44 GB, free: 8.645 MB / 1.123 GB Notification: Performance of matching and sorting (n=70): time 0.002281/1.473, allocations: 0.9466 MB / 1.441 GB, free: 7.695 MB / 1.123 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.553e-05/1.473, allocations: 59.97 kB / 1.441 GB, free: 7.625 MB / 1.123 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0014/1.474, allocations: 0.8763 MB / 1.442 GB, free: 6.73 MB / 1.123 GB Notification: Performance of collectPreVariables (initialization): time 7.925e-05/1.474, allocations: 41.69 kB / 1.442 GB, free: 6.684 MB / 1.123 GB Notification: Performance of collectInitialEqns (initialization): time 0.0004817/1.475, allocations: 0.5545 MB / 1.442 GB, free: 6.121 MB / 1.123 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002904/1.475, allocations: 260.3 kB / 1.442 GB, free: 5.863 MB / 1.123 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002598/1.476, allocations: 142.6 kB / 1.443 GB, free: 5.719 MB / 1.123 GB Notification: Performance of setup shared object (initialization): time 0.0001494/1.476, allocations: 330 kB / 1.443 GB, free: 5.391 MB / 1.123 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0005143/1.476, allocations: 260.7 kB / 1.443 GB, free: 5.133 MB / 1.123 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0006695/1.477, allocations: 447.1 kB / 1.444 GB, free: 4.625 MB / 1.123 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.00116/1.478, allocations: 0.7131 MB / 1.444 GB, free: 3.852 MB / 1.123 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.078e-05/1.478, allocations: 3.938 kB / 1.444 GB, free: 3.848 MB / 1.123 GB Notification: Performance of matching and sorting (n=94) (initialization): time 0.001576/1.48, allocations: 0.832 MB / 1.445 GB, free: 3.008 MB / 1.123 GB Notification: Performance of prepare postOptimizeDAE: time 2.319e-05/1.48, allocations: 12.03 kB / 1.445 GB, free: 2.996 MB / 1.123 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.258e-05/1.48, allocations: 4 kB / 1.445 GB, free: 2.992 MB / 1.123 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.68e-05/1.48, allocations: 8 kB / 1.445 GB, free: 2.984 MB / 1.123 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001617/1.481, allocations: 267.6 kB / 1.445 GB, free: 2.723 MB / 1.123 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001625/1.483, allocations: 1.484 MB / 1.447 GB, free: 1.094 MB / 1.123 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009187/1.484, allocations: 83.11 kB / 1.447 GB, free: 1.012 MB / 1.123 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.685e-05/1.484, allocations: 28 kB / 1.447 GB, free: 0.9844 MB / 1.123 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0009301/1.485, allocations: 482 kB / 1.447 GB, free: 0.5078 MB / 1.123 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0006727/1.486, allocations: 458.9 kB / 1.448 GB, free: 15.99 MB / 1.139 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001228/1.487, allocations: 0.7054 MB / 1.448 GB, free: 15.22 MB / 1.139 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 7.254e-06/1.487, allocations: 4 kB / 1.448 GB, free: 15.21 MB / 1.139 GB Notification: Performance of matching and sorting (n=94) (initialization_lambda0): time 0.00166/1.489, allocations: 0.8315 MB / 1.449 GB, free: 14.38 MB / 1.139 GB Notification: Performance of prepare postOptimizeDAE: time 2.192e-05/1.489, allocations: 8 kB / 1.449 GB, free: 14.37 MB / 1.139 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.167e-06/1.489, allocations: 4 kB / 1.449 GB, free: 14.36 MB / 1.139 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.308e-05/1.489, allocations: 8 kB / 1.449 GB, free: 14.36 MB / 1.139 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001621/1.49, allocations: 260.2 kB / 1.45 GB, free: 14.1 MB / 1.139 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001482/1.492, allocations: 1.499 MB / 1.451 GB, free: 12.46 MB / 1.139 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009157/1.493, allocations: 67.81 kB / 1.451 GB, free: 12.4 MB / 1.139 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.564e-05/1.493, allocations: 32 kB / 1.451 GB, free: 12.37 MB / 1.139 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 21 * Number of states: 0 () * Number of discrete variables: 4 (PI1.I.trigger_internal,PI.I.trigger_internal,QLat.local_reset,QSen.local_reset) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (94): * Single equations (assignments): 93 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * 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): 1 system {1} * Without analytic Jacobian (size): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0003271/1.493, allocations: 232 kB / 1.451 GB, free: 12.13 MB / 1.139 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0003369/1.493, allocations: 110.6 kB / 1.451 GB, free: 12.02 MB / 1.139 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001991/1.495, allocations: 0.7934 MB / 1.452 GB, free: 11.22 MB / 1.139 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 7.854e-06/1.496, allocations: 8 kB / 1.452 GB, free: 11.21 MB / 1.139 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.705e-06/1.496, allocations: 4 kB / 1.452 GB, free: 11.21 MB / 1.139 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.001351/1.497, allocations: 0.7116 MB / 1.453 GB, free: 10.46 MB / 1.139 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.004316/1.501, allocations: 1.93 MB / 1.455 GB, free: 8.453 MB / 1.139 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.673e-06/1.501, allocations: 4.219 kB / 1.455 GB, free: 8.449 MB / 1.139 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0007046/1.502, allocations: 143.8 kB / 1.455 GB, free: 8.309 MB / 1.139 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0004064/1.502, allocations: 40.83 kB / 1.455 GB, free: 8.266 MB / 1.139 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 5.668e-05/1.502, allocations: 16 kB / 1.455 GB, free: 8.25 MB / 1.139 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001755/1.504, allocations: 1.459 MB / 1.456 GB, free: 6.645 MB / 1.139 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.855e-06/1.504, allocations: 0 / 1.456 GB, free: 6.645 MB / 1.139 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002435/1.507, allocations: 1.226 MB / 1.458 GB, free: 5.379 MB / 1.139 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0007488/1.507, allocations: 259.5 kB / 1.458 GB, free: 5.105 MB / 1.139 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001963/1.508, allocations: 16 kB / 1.458 GB, free: 5.09 MB / 1.139 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0007141/1.508, allocations: 21.05 kB / 1.458 GB, free: 5.07 MB / 1.139 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001/1.508, allocations: 48.44 kB / 1.458 GB, free: 5.023 MB / 1.139 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.506e-05/1.508, allocations: 27.98 kB / 1.458 GB, free: 4.996 MB / 1.139 GB Notification: Performance of sorting global known variables: time 0.0009695/1.509, allocations: 0.5928 MB / 1.459 GB, free: 4.395 MB / 1.139 GB Notification: Performance of sort global known variables: time 1.41e-07/1.509, allocations: 4 kB / 1.459 GB, free: 4.391 MB / 1.139 GB Notification: Performance of remove unused functions: time 0.001811/1.511, allocations: 0.5336 MB / 1.459 GB, free: 3.855 MB / 1.139 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 8 * Number of states: 7 (vol1.dynBal.medium.Xi[1],vol1.dynBal.U,vol1.dynBal.m,QSen.y,QLat.y,PI.I.y,PI1.I.y) * 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 (70): * Single equations (assignments): 69 * 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): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,1)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0006381/1.512, allocations: 223.3 kB / 1.459 GB, free: 3.637 MB / 1.139 GB Notification: Performance of simCode: created initialization part: time 0.003841/1.516, allocations: 1.217 MB / 1.46 GB, free: 2.422 MB / 1.139 GB Notification: Performance of simCode: created event and clocks part: time 7.134e-06/1.516, allocations: 0 / 1.46 GB, free: 2.422 MB / 1.139 GB Notification: Performance of simCode: created simulation system equations: time 0.0008156/1.517, allocations: 450.2 kB / 1.461 GB, free: 1.969 MB / 1.139 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002337/1.519, allocations: 0.5124 MB / 1.461 GB, free: 1.461 MB / 1.139 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.004144/1.523, allocations: 2.185 MB / 1.464 GB, free: 15.23 MB / 1.154 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0008373/1.524, allocations: 1.136 MB / 1.465 GB, free: 14.06 MB / 1.154 GB Notification: Performance of simCode: alias equations: time 0.0009909/1.525, allocations: 276.8 kB / 1.465 GB, free: 13.79 MB / 1.154 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002384/1.525, allocations: 83.42 kB / 1.465 GB, free: 13.71 MB / 1.154 GB Notification: Performance of SimCode: time 7.11e-07/1.525, allocations: 0 / 1.465 GB, free: 13.71 MB / 1.154 GB Notification: Performance of Templates: time 0.03202/1.557, allocations: 17.8 MB / 1.482 GB, free: 12.12 MB / 1.17 GB make -j1 -f Buildings_latest_Buildings.Fluid.MixingVolumes.Examples.MixingVolumeMoistAir.makefile (rm -f Buildings_latest_Buildings.Fluid.MixingVolumes.Examples.MixingVolumeMoistAir.pipe ; mkfifo Buildings_latest_Buildings.Fluid.MixingVolumes.Examples.MixingVolumeMoistAir.pipe ; head -c 1048576 < Buildings_latest_Buildings.Fluid.MixingVolumes.Examples.MixingVolumeMoistAir.pipe >> ../files/Buildings_latest_Buildings.Fluid.MixingVolumes.Examples.MixingVolumeMoistAir.sim & ./Buildings_latest_Buildings.Fluid.MixingVolumes.Examples.MixingVolumeMoistAir -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS > Buildings_latest_Buildings.Fluid.MixingVolumes.Examples.MixingVolumeMoistAir.pipe 2>&1) diffSimulationResults("Buildings_latest_Buildings.Fluid.MixingVolumes.Examples.MixingVolumeMoistAir_res.mat","/mnt/ReferenceFiles/Buildings/csv/master/Buildings_Fluid_MixingVolumes_Examples_MixingVolumeMoistAir.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_latest_Buildings.Fluid.MixingVolumes.Examples.MixingVolumeMoistAir.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches