Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.Fluid.HeatExchangers.Validation.WetCoilEffectivenessNTU.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: "" <> buildModelFMU(Buildings.Fluid.HeatExchangers.Validation.WetCoilEffectivenessNTU,fileNamePrefix="Buildings_latest_Buildings_Fluid_HeatExchangers_Validation_WetCoilEffectivenessNTU",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Fluid.HeatExchangers.Validation.WetCoilEffectivenessNTU,fileNamePrefix="Buildings_latest_Buildings_Fluid_HeatExchangers_Validation_WetCoilEffectivenessNTU",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 0.001112/0.001112, allocations: 111.9 kB / 15.61 MB, free: 128 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001101/0.001101, allocations: 196.2 kB / 16.54 MB, free: 6.668 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.32/1.32, allocations: 222.9 MB / 240.2 MB, free: 4.414 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.0.1-master/package.mo): time 2.706/2.706, allocations: 469.4 MB / 0.742 GB, free: 7.664 MB / 0.5919 GB Notification: Performance of FrontEnd - loaded program: time 0.001254/0.001254, allocations: 70.48 kB / 0.9083 GB, free: 34.37 MB / 0.7169 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2698/0.271, allocations: 159.1 MB / 1.064 GB, free: 14.48 MB / 0.8262 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatExchangers.Validation.WetCoilEffectivenessNTU): time 0.9098/1.181, allocations: 369.8 MB / 1.425 GB, free: 15.95 MB / 1.045 GB Notification: Performance of NFInst.instExpressions: time 0.05545/1.236, allocations: 33.34 MB / 1.457 GB, free: 4.719 MB / 1.061 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.008858/1.245, allocations: 156.5 kB / 1.457 GB, free: 4.66 MB / 1.061 GB Notification: Performance of NFTyping.typeComponents: time 0.007596/1.253, allocations: 2.355 MB / 1.46 GB, free: 2.676 MB / 1.061 GB Notification: Performance of NFTyping.typeBindings: time 0.02162/1.275, allocations: 7.507 MB / 1.467 GB, free: 11.4 MB / 1.076 GB Notification: Performance of NFTyping.typeClassSections: time 0.01237/1.287, allocations: 4.563 MB / 1.472 GB, free: 6.875 MB / 1.076 GB Notification: Performance of NFFlatten.flatten: time 0.01631/1.303, allocations: 11.06 MB / 1.482 GB, free: 11.79 MB / 1.092 GB Notification: Performance of NFFlatten.resolveConnections: time 0.006187/1.31, allocations: 4 MB / 1.486 GB, free: 7.723 MB / 1.092 GB Notification: Performance of NFEvalConstants.evaluate: time 0.01365/1.323, allocations: 5.419 MB / 1.492 GB, free: 2.348 MB / 1.092 GB Notification: Performance of NFSimplifyModel.simplify: time 0.006604/1.33, allocations: 3.45 MB / 1.495 GB, free: 14.89 MB / 1.107 GB Notification: Performance of NFPackage.collectConstants: time 0.001932/1.332, allocations: 0.5508 MB / 1.495 GB, free: 14.34 MB / 1.107 GB Notification: Performance of NFFlatten.collectFunctions: time 0.01501/1.347, allocations: 6.758 MB / 1.502 GB, free: 7.574 MB / 1.107 GB Notification: Performance of NFScalarize.scalarize: time 0.00238/1.349, allocations: 1.468 MB / 1.504 GB, free: 6.102 MB / 1.107 GB Notification: Performance of NFVerifyModel.verify: time 0.005507/1.355, allocations: 2.843 MB / 1.506 GB, free: 3.246 MB / 1.107 GB Notification: Performance of NFConvertDAE.convert: time 0.01753/1.372, allocations: 9.673 MB / 1.516 GB, free: 9.547 MB / 1.123 GB Notification: Performance of FrontEnd - DAE generated: time 5.82e-06/1.372, allocations: 0 / 1.516 GB, free: 9.547 MB / 1.123 GB Notification: Performance of FrontEnd: time 1.713e-06/1.372, allocations: 0 / 1.516 GB, free: 9.547 MB / 1.123 GB Notification: Performance of Transformations before backend: time 0.0002494/1.373, allocations: 0 / 1.516 GB, free: 9.547 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: 851 * Number of variables: 851 Notification: Performance of Generate backend data structure: time 0.01583/1.388, allocations: 5.951 MB / 1.522 GB, free: 3.492 MB / 1.123 GB Notification: Performance of prepare preOptimizeDAE: time 5.217e-05/1.389, allocations: 12.03 kB / 1.522 GB, free: 3.48 MB / 1.123 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.001128/1.39, allocations: 455.8 kB / 1.522 GB, free: 3.023 MB / 1.123 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.03155/1.421, allocations: 4.282 MB / 1.526 GB, free: 14.73 MB / 1.139 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.009163/1.43, allocations: 3.56 MB / 1.53 GB, free: 11.11 MB / 1.139 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.001665/1.432, allocations: 0.5244 MB / 1.53 GB, free: 10.57 MB / 1.139 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001512/1.434, allocations: 356 kB / 1.531 GB, free: 10.23 MB / 1.139 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01803/1.452, allocations: 5.712 MB / 1.536 GB, free: 4.43 MB / 1.139 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0001018/1.452, allocations: 3.938 kB / 1.536 GB, free: 4.426 MB / 1.139 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0009786/1.453, allocations: 136 kB / 1.536 GB, free: 4.293 MB / 1.139 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001359/1.453, allocations: 138.5 kB / 1.536 GB, free: 4.156 MB / 1.139 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0227/1.476, allocations: 6.826 MB / 1.543 GB, free: 13.32 MB / 1.154 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 0.04657/1.522, allocations: 22.36 MB / 1.565 GB, free: 5.832 MB / 1.17 GB Notification: Performance of preOpt comSubExp (simulation): time 0.01262/1.535, allocations: 4.035 MB / 1.569 GB, free: 1.801 MB / 1.17 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.007091/1.542, allocations: 2.255 MB / 1.571 GB, free: 15.54 MB / 1.186 GB Notification: Performance of preOpt evalFunc (simulation): time 0.01692/1.559, allocations: 8.157 MB / 1.579 GB, free: 7.012 MB / 1.186 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.007543/1.567, allocations: 2.493 MB / 1.581 GB, free: 4.5 MB / 1.186 GB Notification: Performance of pre-optimization done (n=228): time 5.651e-06/1.567, allocations: 0 / 1.581 GB, free: 4.5 MB / 1.186 GB Notification: Performance of matching and sorting (n=228): time 0.03372/1.6, allocations: 8.414 MB / 1.59 GB, free: 11.95 MB / 1.201 GB Notification: Performance of inlineWhenForInitialization (initialization): time 7.908e-05/1.601, allocations: 128.8 kB / 1.59 GB, free: 11.79 MB / 1.201 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.009491/1.61, allocations: 4.341 MB / 1.594 GB, free: 7.434 MB / 1.201 GB Notification: Performance of collectPreVariables (initialization): time 0.0006573/1.611, allocations: 77.7 kB / 1.594 GB, free: 7.352 MB / 1.201 GB Notification: Performance of collectInitialEqns (initialization): time 0.001873/1.613, allocations: 1.818 MB / 1.596 GB, free: 5.516 MB / 1.201 GB Notification: Performance of collectInitialBindings (initialization): time 0.001191/1.614, allocations: 0.7934 MB / 1.597 GB, free: 4.711 MB / 1.201 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.002694/1.616, allocations: 0.8237 MB / 1.597 GB, free: 3.879 MB / 1.201 GB Notification: Performance of setup shared object (initialization): time 9.187e-05/1.617, allocations: 305.1 kB / 1.598 GB, free: 3.578 MB / 1.201 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.009516/1.626, allocations: 2.743 MB / 1.6 GB, free: 0.832 MB / 1.201 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.01059/1.637, allocations: 3.475 MB / 1.604 GB, free: 13.11 MB / 1.217 GB Notification: It was not possible to check the given initialization system for consistency symbolically, because the relevant equations are part of an algebraic loop. This is not supported yet. Notification: Performance of analyzeInitialSystem (initialization): time 0.02007/1.657, allocations: 5.945 MB / 1.61 GB, free: 6.93 MB / 1.217 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.383e-05/1.657, allocations: 8 kB / 1.61 GB, free: 6.922 MB / 1.217 GB Notification: Performance of matching and sorting (n=454) (initialization): time 0.03102/1.688, allocations: 7.604 MB / 1.617 GB, free: 15.25 MB / 1.232 GB Notification: Performance of prepare postOptimizeDAE: time 3.778e-05/1.688, allocations: 8.5 kB / 1.617 GB, free: 15.24 MB / 1.232 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.62e-05/1.688, allocations: 20 kB / 1.617 GB, free: 15.22 MB / 1.232 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.004165/1.692, allocations: 0.9675 MB / 1.618 GB, free: 14.23 MB / 1.232 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.009337/1.702, allocations: 1.42 MB / 1.619 GB, free: 12.8 MB / 1.232 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01882/1.72, allocations: 14.48 MB / 1.633 GB, free: 13.23 MB / 1.248 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.01163/1.732, allocations: 1.229 MB / 1.635 GB, free: 12 MB / 1.248 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001419/1.734, allocations: 183.8 kB / 1.635 GB, free: 11.82 MB / 1.248 GB Warning: The initial conditions are over specified. The following 2 initial equations are redundant, so they are removed from the initialization system: hexWetNTU.UAFroRated.TAirIn = 293.15 hexWetNTU.UAFroRated.TWatIn = 293.15. Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 65 * Number of states: 0 () * Number of discrete variables: 19 (hexWetNTU.UAFroRated.isFulWet,hexWetNTU.UAFroRated.isFulDry,$PRE.w_a2.nextTimeEvent,$whenCondition1,hexWetNTU.flowRegime_nominal,hexWetNTU.dryWetCalcs.fullyDry.cfg,hexWetNTU.dryWetCalcs.fullyWet.cfg,hexWetNTU.dryWetCalcs.cfg,hexWetNTU.flowRegime,hexWetNTU_TX.flowRegime_nominal,hexWetNTU_TX.dryWetCalcs.fullyDry.cfg,hexWetNTU_TX.dryWetCalcs.fullyWet.cfg,hexWetNTU_TX.dryWetCalcs.cfg,hexWetNTU_TX.flowRegime,hexWetNTU_TX.UAFroRated.isFulWet,hexWetNTU_TX.UAFroRated.isFulDry,w_a2.nextTimeEventScaled,$PRE.w_a2.nextTimeEventScaled,w_a2.nextTimeEvent) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (424): * Single equations (assignments): 409 * Array equations: 4 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 2 * Torn equation systems: 9 * 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): 2 systems {1, 1} * Without analytic Jacobian (size): 0 systems 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): 9 systems {(1,1), (1,3), (1,2), (1,2), (1,4), (1,2), (1,4), (1,2), (5,2)} Notification: Performance of prepare postOptimizeDAE: time 0.003617/1.737, allocations: 0.8748 MB / 1.636 GB, free: 10.94 MB / 1.248 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.00216/1.739, allocations: 418.8 kB / 1.636 GB, free: 10.53 MB / 1.248 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.02333/1.763, allocations: 5.763 MB / 1.642 GB, free: 4.73 MB / 1.248 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.946e-05/1.763, allocations: 35.94 kB / 1.642 GB, free: 4.695 MB / 1.248 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.806e-05/1.763, allocations: 0 / 1.642 GB, free: 4.695 MB / 1.248 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.711e-05/1.763, allocations: 11.95 kB / 1.642 GB, free: 4.684 MB / 1.248 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0322/1.795, allocations: 10.9 MB / 1.652 GB, free: 9.617 MB / 1.264 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.575e-05/1.795, allocations: 4 kB / 1.652 GB, free: 9.613 MB / 1.264 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.004788/1.8, allocations: 0.6752 MB / 1.653 GB, free: 8.938 MB / 1.264 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.003431/1.803, allocations: 0.7715 MB / 1.654 GB, free: 8.141 MB / 1.264 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0005151/1.804, allocations: 79.91 kB / 1.654 GB, free: 8.062 MB / 1.264 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.01458/1.819, allocations: 11.68 MB / 1.665 GB, free: 11.46 MB / 1.279 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 6.703e-06/1.819, allocations: 7.938 kB / 1.665 GB, free: 11.46 MB / 1.279 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.03058/1.849, allocations: 8.179 MB / 1.673 GB, free: 3.18 MB / 1.279 GB Notification: Performance of postOpt removeConstants (simulation): time 0.003112/1.852, allocations: 1.057 MB / 1.674 GB, free: 2.098 MB / 1.279 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001649/1.854, allocations: 52.17 kB / 1.674 GB, free: 2.047 MB / 1.279 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.007088/1.861, allocations: 0.551 MB / 1.675 GB, free: 1.496 MB / 1.279 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0005574/1.862, allocations: 161.7 kB / 1.675 GB, free: 1.34 MB / 1.279 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0004665/1.862, allocations: 107.9 kB / 1.675 GB, free: 1.234 MB / 1.279 GB Notification: Performance of sorting global known variables: time 0.007052/1.869, allocations: 2.991 MB / 1.678 GB, free: 14.24 MB / 1.295 GB Notification: Performance of sort global known variables: time 3.918e-06/1.869, allocations: 0 / 1.678 GB, free: 14.24 MB / 1.295 GB Notification: Performance of remove unused functions: time 0.006485/1.876, allocations: 1.549 MB / 1.68 GB, free: 12.69 MB / 1.295 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 16 * Number of states: 8 (relHumIn.phi,TDryBulIn.T,senMasFraIn.X,senMasFraOut.X,TDryBulOut.T,hexWetNTU.dryWetCalcs.fullyWet.TWatOutEst,relHumOut_eps.phi,hexWetNTU_TX.dryWetCalcs.fullyWet.TWatOutEst) * Number of discrete variables: 3 ($whenCondition1,w_a2.nextTimeEvent,w_a2.nextTimeEventScaled) * Number of discrete states: 2 (w_a2.nextTimeEvent,w_a2.nextTimeEventScaled) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (225): * Single equations (assignments): 212 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 3 * When equations: 2 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 8 * 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): 8 systems {(1,4), (1,2), (1,4), (1,2), (1,1), (1,1), (1,3), (1,3)} Notification: Performance of Backend phase and start with SimCode phase: time 0.03045/1.906, allocations: 9.583 MB / 1.689 GB, free: 3.172 MB / 1.295 GB Notification: Performance of simCode: created initialization part: time 0.02656/1.933, allocations: 7.104 MB / 1.696 GB, free: 12 MB / 1.311 GB Notification: Performance of simCode: created event and clocks part: time 9.538e-06/1.933, allocations: 4.188 kB / 1.696 GB, free: 12 MB / 1.311 GB Notification: Performance of simCode: created simulation system equations: time 0.008727/1.942, allocations: 3.01 MB / 1.699 GB, free: 8.91 MB / 1.311 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.01114/1.953, allocations: 2.093 MB / 1.701 GB, free: 6.898 MB / 1.311 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.1308/2.084, allocations: 46.94 MB / 1.747 GB, free: 4.711 MB / 1.357 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.00275/2.086, allocations: 2.302 MB / 1.749 GB, free: 2.379 MB / 1.357 GB Notification: Performance of simCode: alias equations: time 0.007112/2.093, allocations: 1.043 MB / 1.75 GB, free: 1.344 MB / 1.357 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.003535/2.097, allocations: 1.803 MB / 1.752 GB, free: 15.54 MB / 1.373 GB Notification: Performance of SimCode: time 7.61e-07/2.097, allocations: 3.938 kB / 1.752 GB, free: 15.54 MB / 1.373 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.7244/2.821, allocations: 129 MB / 1.878 GB, free: 470.5 MB / 1.373 GB Notification: Performance of buildModelFMU: Generate platform static: time 15.07/17.89, allocations: 13.89 kB / 1.878 GB, free: 470.5 MB / 1.373 GB (rm -f Buildings_latest_Buildings.Fluid.HeatExchangers.Validation.WetCoilEffectivenessNTU.pipe ; mkfifo Buildings_latest_Buildings.Fluid.HeatExchangers.Validation.WetCoilEffectivenessNTU.pipe ; head -c 1048576 < Buildings_latest_Buildings.Fluid.HeatExchangers.Validation.WetCoilEffectivenessNTU.pipe >> ../files/Buildings_latest_Buildings.Fluid.HeatExchangers.Validation.WetCoilEffectivenessNTU.sim & python3 -m fmpy simulate --output-file Buildings_latest_Buildings.Fluid.HeatExchangers.Validation.WetCoilEffectivenessNTU_res.csv --start-time 0 --stop-time 1000 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.4 Buildings_latest_Buildings_Fluid_HeatExchangers_Validation_WetCoilEffectivenessNTU.fmu > Buildings_latest_Buildings.Fluid.HeatExchangers.Validation.WetCoilEffectivenessNTU.pipe 2>&1) diffSimulationResults("Buildings_latest_Buildings.Fluid.HeatExchangers.Validation.WetCoilEffectivenessNTU_res.csv","/mnt/ReferenceFiles/Buildings/csv/master/Buildings_Fluid_HeatExchangers_Validation_WetCoilEffectivenessNTU.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_latest_Buildings.Fluid.HeatExchangers.Validation.WetCoilEffectivenessNTU.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches