Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.Fluid.MixingVolumes.Validation.MixingVolumeSteadyStateMass.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 12.0.0-master/package.mo", uses=false) Using package Buildings with version 12.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-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: "" <> buildModelFMU(Buildings.Fluid.MixingVolumes.Validation.MixingVolumeSteadyStateMass,fileNamePrefix="Buildings_latest_Buildings_Fluid_MixingVolumes_Validation_MixingVolumeSteadyStateMass",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Fluid.MixingVolumes.Validation.MixingVolumeSteadyStateMass,fileNamePrefix="Buildings_latest_Buildings_Fluid_MixingVolumes_Validation_MixingVolumeSteadyStateMass",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.008288/0.008288, allocations: 96.7 kB / 15.73 MB, free: 6.051 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.002342/0.002342, allocations: 194.3 kB / 16.67 MB, free: 5.973 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.492/1.492, allocations: 222.9 MB / 240.4 MB, free: 4.328 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-master/package.mo): time 2.949/2.949, allocations: 482.4 MB / 0.7548 GB, free: 10.88 MB / 0.6075 GB Notification: Performance of FrontEnd - loaded program: time 0.001946/0.001946, allocations: 59.91 kB / 1.083 GB, free: 12.59 MB / 0.8419 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.29/0.292, allocations: 162.2 MB / 1.241 GB, free: 10.25 MB / 0.9981 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.MixingVolumes.Validation.MixingVolumeSteadyStateMass): time 0.7215/1.013, allocations: 177.2 MB / 1.414 GB, free: 0.7266 MB / 1.107 GB Notification: Performance of NFInst.instExpressions: time 0.007237/1.021, allocations: 4.418 MB / 1.419 GB, free: 13.14 MB / 1.123 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0007128/1.021, allocations: 24.12 kB / 1.419 GB, free: 13.13 MB / 1.123 GB Notification: Performance of NFTyping.typeComponents: time 0.0009527/1.022, allocations: 357.1 kB / 1.419 GB, free: 12.84 MB / 1.123 GB Notification: Performance of NFTyping.typeBindings: time 0.003041/1.026, allocations: 1.251 MB / 1.42 GB, free: 11.88 MB / 1.123 GB Notification: Performance of NFTyping.typeClassSections: time 0.001837/1.027, allocations: 0.7037 MB / 1.421 GB, free: 11.35 MB / 1.123 GB Notification: Performance of NFFlatten.flatten: time 0.002145/1.03, allocations: 1.62 MB / 1.423 GB, free: 10.41 MB / 1.123 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0007488/1.03, allocations: 0.5225 MB / 1.423 GB, free: 10.1 MB / 1.123 GB Notification: Performance of NFEvalConstants.evaluate: time 0.001749/1.032, allocations: 0.885 MB / 1.424 GB, free: 9.559 MB / 1.123 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001059/1.033, allocations: 482.8 kB / 1.424 GB, free: 9.281 MB / 1.123 GB Notification: Performance of NFPackage.collectConstants: time 9.863e-05/1.033, allocations: 52.66 kB / 1.425 GB, free: 9.281 MB / 1.123 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002523/1.036, allocations: 1.279 MB / 1.426 GB, free: 8.574 MB / 1.123 GB Notification: Performance of NFScalarize.scalarize: time 0.0002866/1.036, allocations: 235.3 kB / 1.426 GB, free: 8.418 MB / 1.123 GB Notification: Performance of NFVerifyModel.verify: time 0.0004258/1.036, allocations: 352.7 kB / 1.426 GB, free: 8.195 MB / 1.123 GB Notification: Performance of NFConvertDAE.convert: time 0.002085/1.039, allocations: 1.285 MB / 1.428 GB, free: 7.383 MB / 1.123 GB Notification: Performance of FrontEnd - DAE generated: time 3.436e-06/1.039, allocations: 0 / 1.428 GB, free: 7.383 MB / 1.123 GB Notification: Performance of FrontEnd: time 1.313e-06/1.039, allocations: 0 / 1.428 GB, free: 7.383 MB / 1.123 GB Notification: Performance of Transformations before backend: time 9.458e-06/1.039, allocations: 0 / 1.428 GB, free: 7.383 MB / 1.123 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 104 * Number of variables: 104 Notification: Performance of Generate backend data structure: time 0.001613/1.04, allocations: 1.029 MB / 1.429 GB, free: 6.535 MB / 1.123 GB Notification: Performance of prepare preOptimizeDAE: time 3.67e-05/1.04, allocations: 10 kB / 1.429 GB, free: 6.535 MB / 1.123 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001108/1.04, allocations: 86.27 kB / 1.429 GB, free: 6.457 MB / 1.123 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001069/1.041, allocations: 174.5 kB / 1.429 GB, free: 6.379 MB / 1.123 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0008668/1.042, allocations: 0.5581 MB / 1.429 GB, free: 5.918 MB / 1.123 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.999e-05/1.042, allocations: 31.31 kB / 1.429 GB, free: 5.906 MB / 1.123 GB Notification: Performance of preOpt expandDerOperator (simulation): time 7.179e-05/1.042, allocations: 56.92 kB / 1.429 GB, free: 5.879 MB / 1.123 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.000816/1.043, allocations: 469.8 kB / 1.43 GB, free: 5.605 MB / 1.123 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.425e-05/1.043, allocations: 2.719 kB / 1.43 GB, free: 5.605 MB / 1.123 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 4.759e-05/1.043, allocations: 18.23 kB / 1.43 GB, free: 5.59 MB / 1.123 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.105e-05/1.043, allocations: 15.38 kB / 1.43 GB, free: 5.59 MB / 1.123 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0007466/1.044, allocations: 420.3 kB / 1.43 GB, free: 5.391 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 0.002735/1.047, allocations: 2.101 MB / 1.432 GB, free: 3.559 MB / 1.123 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0005199/1.047, allocations: 296.9 kB / 1.433 GB, free: 3.398 MB / 1.123 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.000325/1.048, allocations: 191.9 kB / 1.433 GB, free: 3.305 MB / 1.123 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002867/1.048, allocations: 187.8 kB / 1.433 GB, free: 3.109 MB / 1.123 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.07e-05/1.048, allocations: 40.06 kB / 1.433 GB, free: 3.062 MB / 1.123 GB Notification: Performance of pre-optimization done (n=30): time 1.703e-06/1.048, allocations: 0 / 1.433 GB, free: 3.062 MB / 1.123 GB Notification: Performance of matching and sorting (n=30): time 0.001674/1.05, allocations: 0.6469 MB / 1.434 GB, free: 2.566 MB / 1.123 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.938e-05/1.05, allocations: 55.41 kB / 1.434 GB, free: 2.5 MB / 1.123 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0005251/1.05, allocations: 449.9 kB / 1.434 GB, free: 2.047 MB / 1.123 GB Notification: Performance of collectPreVariables (initialization): time 3.597e-05/1.05, allocations: 29.7 kB / 1.434 GB, free: 2.012 MB / 1.123 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002281/1.051, allocations: 280.6 kB / 1.435 GB, free: 1.734 MB / 1.123 GB Notification: Performance of collectInitialBindings (initialization): time 0.000107/1.051, allocations: 114.9 kB / 1.435 GB, free: 1.621 MB / 1.123 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001209/1.051, allocations: 73.66 kB / 1.435 GB, free: 1.543 MB / 1.123 GB Notification: Performance of setup shared object (initialization): time 0.0001682/1.051, allocations: 358.8 kB / 1.435 GB, free: 1.184 MB / 1.123 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002905/1.051, allocations: 132.7 kB / 1.435 GB, free: 1.051 MB / 1.123 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0003572/1.052, allocations: 206.5 kB / 1.435 GB, free: 0.8242 MB / 1.123 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0006178/1.052, allocations: 329 kB / 1.436 GB, free: 496 kB / 1.123 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.164e-06/1.052, allocations: 0 / 1.436 GB, free: 496 kB / 1.123 GB Notification: Performance of matching and sorting (n=37) (initialization): time 0.0007557/1.053, allocations: 413 kB / 1.436 GB, free: 76 kB / 1.123 GB Notification: Performance of prepare postOptimizeDAE: time 1.512e-05/1.053, allocations: 8 kB / 1.436 GB, free: 68 kB / 1.123 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.511e-06/1.053, allocations: 3.625 kB / 1.436 GB, free: 68 kB / 1.123 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.55e-05/1.053, allocations: 4 kB / 1.436 GB, free: 64 kB / 1.123 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003694/1.054, allocations: 72.11 kB / 1.436 GB, free: 15.99 MB / 1.139 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.133e-05/1.054, allocations: 4 kB / 1.436 GB, free: 15.98 MB / 1.139 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004301/1.054, allocations: 35.72 kB / 1.436 GB, free: 15.95 MB / 1.139 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.86e-05/1.054, allocations: 19.92 kB / 1.436 GB, free: 15.93 MB / 1.139 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0004451/1.055, allocations: 288 kB / 1.436 GB, free: 15.65 MB / 1.139 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0003385/1.055, allocations: 203.6 kB / 1.437 GB, free: 15.43 MB / 1.139 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0005918/1.055, allocations: 329 kB / 1.437 GB, free: 15.09 MB / 1.139 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.333e-06/1.055, allocations: 0 / 1.437 GB, free: 15.09 MB / 1.139 GB Notification: Performance of matching and sorting (n=37) (initialization_lambda0): time 0.0007477/1.056, allocations: 405.3 kB / 1.437 GB, free: 14.69 MB / 1.139 GB Notification: Performance of prepare postOptimizeDAE: time 1.18e-05/1.056, allocations: 7.938 kB / 1.437 GB, free: 14.68 MB / 1.139 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.068e-06/1.056, allocations: 4 kB / 1.437 GB, free: 14.68 MB / 1.139 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.925e-06/1.056, allocations: 0 / 1.437 GB, free: 14.68 MB / 1.139 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003188/1.057, allocations: 68.06 kB / 1.437 GB, free: 14.61 MB / 1.139 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 8.476e-06/1.057, allocations: 4 kB / 1.437 GB, free: 14.61 MB / 1.139 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004165/1.057, allocations: 43.73 kB / 1.438 GB, free: 14.56 MB / 1.139 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.064e-05/1.057, allocations: 12 kB / 1.438 GB, free: 14.55 MB / 1.139 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 6 * 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 (37): * Single equations (assignments): 37 * 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 0.0001454/1.057, allocations: 196.2 kB / 1.438 GB, free: 14.35 MB / 1.139 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 9.759e-05/1.057, allocations: 55.61 kB / 1.438 GB, free: 14.3 MB / 1.139 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0008948/1.058, allocations: 420.2 kB / 1.438 GB, free: 13.88 MB / 1.139 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.781e-06/1.058, allocations: 4 kB / 1.438 GB, free: 13.88 MB / 1.139 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.28e-06/1.058, allocations: 0 / 1.438 GB, free: 13.88 MB / 1.139 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0007594/1.059, allocations: 445.1 kB / 1.439 GB, free: 13.41 MB / 1.139 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001868/1.061, allocations: 1.135 MB / 1.44 GB, free: 12.19 MB / 1.139 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.819e-06/1.061, allocations: 11.97 kB / 1.44 GB, free: 12.18 MB / 1.139 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003047/1.061, allocations: 59.91 kB / 1.44 GB, free: 12.12 MB / 1.139 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0002196/1.061, allocations: 40.83 kB / 1.44 GB, free: 12.08 MB / 1.139 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.916e-05/1.062, allocations: 11.98 kB / 1.44 GB, free: 12.07 MB / 1.139 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001425/1.063, allocations: 1.544 MB / 1.441 GB, free: 10.38 MB / 1.139 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.41e-06/1.063, allocations: 4.031 kB / 1.441 GB, free: 10.38 MB / 1.139 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001204/1.064, allocations: 0.7041 MB / 1.442 GB, free: 9.637 MB / 1.139 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0002286/1.064, allocations: 164.7 kB / 1.442 GB, free: 9.457 MB / 1.139 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 6.649e-05/1.064, allocations: 12 kB / 1.442 GB, free: 9.445 MB / 1.139 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003814/1.065, allocations: 15.98 kB / 1.442 GB, free: 9.43 MB / 1.139 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 7.356e-05/1.065, allocations: 31.84 kB / 1.442 GB, free: 9.398 MB / 1.139 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.583e-05/1.065, allocations: 12.06 kB / 1.442 GB, free: 9.387 MB / 1.139 GB Notification: Performance of sorting global known variables: time 0.0003759/1.065, allocations: 314.9 kB / 1.443 GB, free: 9.082 MB / 1.139 GB Notification: Performance of sort global known variables: time 1.1e-07/1.065, allocations: 0 / 1.443 GB, free: 9.082 MB / 1.139 GB Notification: Performance of remove unused functions: time 0.0008499/1.066, allocations: 299.5 kB / 1.443 GB, free: 8.789 MB / 1.139 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 8 * Number of states: 2 (vol.dynBal.medium.Xi[1],vol.dynBal.U) * 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 (28): * Single equations (assignments): 27 * 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 {(1,2,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.001854/1.068, allocations: 1.34 MB / 1.444 GB, free: 7.406 MB / 1.139 GB Notification: Performance of simCode: created initialization part: time 0.001036/1.069, allocations: 491.5 kB / 1.445 GB, free: 6.926 MB / 1.139 GB Notification: Performance of simCode: created event and clocks part: time 2.685e-06/1.069, allocations: 0 / 1.445 GB, free: 6.926 MB / 1.139 GB Notification: Performance of simCode: created simulation system equations: time 0.0005134/1.07, allocations: 283.5 kB / 1.445 GB, free: 6.637 MB / 1.139 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001479/1.071, allocations: 311.6 kB / 1.445 GB, free: 6.344 MB / 1.139 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.005782/1.077, allocations: 4.173 MB / 1.449 GB, free: 2.02 MB / 1.139 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005486/1.078, allocations: 0.8975 MB / 1.45 GB, free: 1.094 MB / 1.139 GB Notification: Performance of simCode: alias equations: time 0.0004957/1.078, allocations: 168.4 kB / 1.45 GB, free: 0.9297 MB / 1.139 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002806/1.078, allocations: 183.4 kB / 1.45 GB, free: 0.75 MB / 1.139 GB Notification: Performance of SimCode: time 6.01e-07/1.078, allocations: 0 / 1.45 GB, free: 0.75 MB / 1.139 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.04376/1.122, allocations: 14.72 MB / 1.465 GB, free: 2.348 MB / 1.154 GB Notification: Performance of buildModelFMU: Generate platform static: time 10.22/11.35, allocations: 6.812 kB / 1.465 GB, free: 2.344 MB / 1.154 GB (rm -f Buildings_latest_Buildings.Fluid.MixingVolumes.Validation.MixingVolumeSteadyStateMass.pipe ; mkfifo Buildings_latest_Buildings.Fluid.MixingVolumes.Validation.MixingVolumeSteadyStateMass.pipe ; head -c 1048576 < Buildings_latest_Buildings.Fluid.MixingVolumes.Validation.MixingVolumeSteadyStateMass.pipe >> ../files/Buildings_latest_Buildings.Fluid.MixingVolumes.Validation.MixingVolumeSteadyStateMass.sim & python3 -m fmpy simulate --output-file Buildings_latest_Buildings.Fluid.MixingVolumes.Validation.MixingVolumeSteadyStateMass_res.csv --start-time 0 --stop-time 1 --timeout 400 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.0004 Buildings_latest_Buildings_Fluid_MixingVolumes_Validation_MixingVolumeSteadyStateMass.fmu > Buildings_latest_Buildings.Fluid.MixingVolumes.Validation.MixingVolumeSteadyStateMass.pipe 2>&1) diffSimulationResults("Buildings_latest_Buildings.Fluid.MixingVolumes.Validation.MixingVolumeSteadyStateMass_res.csv","/mnt/ReferenceFiles/Buildings/csv/master/Buildings_Fluid_MixingVolumes_Validation_MixingVolumeSteadyStateMass.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_latest_Buildings.Fluid.MixingVolumes.Validation.MixingVolumeSteadyStateMass.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches