Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_11_Buildings.Examples.Tutorial.CDL.Controls.Validation.BoilerReturn.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 11.1.0-maint.11.x/package.mo", uses=false) Using package Buildings with version 11.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.0-maint.11.x/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.Examples.Tutorial.CDL.Controls.Validation.BoilerReturn,fileNamePrefix="Buildings_11_Buildings_Examples_Tutorial_CDL_Controls_Validation_BoilerReturn",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Examples.Tutorial.CDL.Controls.Validation.BoilerReturn,fileNamePrefix="Buildings_11_Buildings_Examples_Tutorial_CDL_Controls_Validation_BoilerReturn",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 0.007382/0.007382, allocations: 97.64 kB / 15.73 MB, free: 5.988 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001846/0.001846, allocations: 192.2 kB / 16.67 MB, free: 5.918 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.44/1.44, allocations: 222.9 MB / 240.4 MB, free: 4.312 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.0-maint.11.x/package.mo): time 2.866/2.866, allocations: 469.8 MB / 0.7425 GB, free: 7.27 MB / 0.5919 GB Notification: Performance of FrontEnd - loaded program: time 0.001889/0.001889, allocations: 56.12 kB / 1.065 GB, free: 13.55 MB / 0.8262 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2896/0.2915, allocations: 159.1 MB / 1.22 GB, free: 14.29 MB / 0.9825 GB Notification: Performance of NFInst.instantiate(Buildings.Examples.Tutorial.CDL.Controls.Validation.BoilerReturn): time 0.003189/0.2947, allocations: 2.055 MB / 1.222 GB, free: 12.21 MB / 0.9825 GB Notification: Performance of NFInst.instExpressions: time 0.0007854/0.2955, allocations: 446.7 kB / 1.223 GB, free: 11.78 MB / 0.9825 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0001243/0.2956, allocations: 4 kB / 1.223 GB, free: 11.77 MB / 0.9825 GB Notification: Performance of NFTyping.typeComponents: time 0.000151/0.2958, allocations: 35.59 kB / 1.223 GB, free: 11.74 MB / 0.9825 GB Notification: Performance of NFTyping.typeBindings: time 0.0001003/0.2959, allocations: 35.66 kB / 1.223 GB, free: 11.7 MB / 0.9825 GB Notification: Performance of NFTyping.typeClassSections: time 0.0002335/0.2961, allocations: 99.86 kB / 1.223 GB, free: 11.61 MB / 0.9825 GB Notification: Performance of NFFlatten.flatten: time 0.0003011/0.2964, allocations: 292.4 kB / 1.223 GB, free: 11.32 MB / 0.9825 GB Notification: Performance of NFFlatten.resolveConnections: time 0.000272/0.2967, allocations: 152.5 kB / 1.223 GB, free: 11.17 MB / 0.9825 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0001258/0.2969, allocations: 95.59 kB / 1.223 GB, free: 11.07 MB / 0.9825 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0001299/0.297, allocations: 111.4 kB / 1.223 GB, free: 10.96 MB / 0.9825 GB Notification: Performance of NFPackage.collectConstants: time 5.001e-05/0.297, allocations: 35.98 kB / 1.223 GB, free: 10.93 MB / 0.9825 GB Notification: Performance of NFFlatten.collectFunctions: time 3.951e-05/0.2971, allocations: 32 kB / 1.223 GB, free: 10.9 MB / 0.9825 GB Notification: Performance of NFScalarize.scalarize: time 6.758e-05/0.2972, allocations: 67.78 kB / 1.223 GB, free: 10.83 MB / 0.9825 GB Notification: Performance of NFVerifyModel.verify: time 0.0001102/0.2973, allocations: 119.4 kB / 1.224 GB, free: 10.71 MB / 0.9825 GB Notification: Performance of NFConvertDAE.convert: time 0.0004221/0.2977, allocations: 386.5 kB / 1.224 GB, free: 10.34 MB / 0.9825 GB Notification: Performance of FrontEnd - DAE generated: time 4.238e-06/0.2977, allocations: 0 / 1.224 GB, free: 10.34 MB / 0.9825 GB Notification: Performance of FrontEnd: time 1.583e-06/0.2977, allocations: 0 / 1.224 GB, free: 10.34 MB / 0.9825 GB Notification: Performance of Transformations before backend: time 5.871e-06/0.2977, allocations: 0 / 1.224 GB, free: 10.34 MB / 0.9825 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 47 * Number of variables: 47 Notification: Performance of Generate backend data structure: time 0.0009282/0.2987, allocations: 0.5495 MB / 1.225 GB, free: 9.738 MB / 0.9825 GB Notification: Performance of prepare preOptimizeDAE: time 4.853e-05/0.2987, allocations: 12.03 kB / 1.225 GB, free: 9.727 MB / 0.9825 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 6.679e-05/0.2988, allocations: 54.67 kB / 1.225 GB, free: 9.664 MB / 0.9825 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 6.227e-05/0.2989, allocations: 28.8 kB / 1.225 GB, free: 9.637 MB / 0.9825 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0003985/0.2993, allocations: 276.3 kB / 1.225 GB, free: 9.328 MB / 0.9825 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.187e-05/0.2993, allocations: 16.81 kB / 1.225 GB, free: 9.312 MB / 0.9825 GB Notification: Performance of preOpt expandDerOperator (simulation): time 3.593e-05/0.2993, allocations: 16.38 kB / 1.225 GB, free: 9.297 MB / 0.9825 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0005187/0.2999, allocations: 250 kB / 1.225 GB, free: 9.035 MB / 0.9825 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.314e-05/0.2999, allocations: 0 / 1.225 GB, free: 9.035 MB / 0.9825 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.081e-05/0.2999, allocations: 7.938 kB / 1.225 GB, free: 9.027 MB / 0.9825 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.419e-05/0.2999, allocations: 8 kB / 1.225 GB, free: 9.02 MB / 0.9825 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0004635/0.3004, allocations: 165 kB / 1.225 GB, free: 8.859 MB / 0.9825 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001232/0.3016, allocations: 0.8484 MB / 1.226 GB, free: 7.953 MB / 0.9825 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0005163/0.3022, allocations: 182.7 kB / 1.226 GB, free: 7.766 MB / 0.9825 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002336/0.3024, allocations: 96.8 kB / 1.226 GB, free: 7.668 MB / 0.9825 GB Notification: Performance of preOpt evalFunc (simulation): time 1.875e-05/0.3024, allocations: 0 / 1.226 GB, free: 7.668 MB / 0.9825 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.709e-05/0.3025, allocations: 34.5 kB / 1.226 GB, free: 7.625 MB / 0.9825 GB Notification: Performance of pre-optimization done (n=12): time 1.222e-06/0.3025, allocations: 4 kB / 1.226 GB, free: 7.621 MB / 0.9825 GB Notification: Performance of matching and sorting (n=12): time 0.0006803/0.3032, allocations: 229.5 kB / 1.227 GB, free: 7.391 MB / 0.9825 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.981e-05/0.3033, allocations: 81.09 kB / 1.227 GB, free: 7.293 MB / 0.9825 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0002601/0.3035, allocations: 235.2 kB / 1.227 GB, free: 7.047 MB / 0.9825 GB Notification: Performance of collectPreVariables (initialization): time 3.124e-05/0.3036, allocations: 25.7 kB / 1.227 GB, free: 7.016 MB / 0.9825 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001182/0.3037, allocations: 156.3 kB / 1.227 GB, free: 6.859 MB / 0.9825 GB Notification: Performance of collectInitialBindings (initialization): time 4.012e-05/0.3037, allocations: 47.58 kB / 1.227 GB, free: 6.812 MB / 0.9825 GB Notification: Performance of simplifyInitialFunctions (initialization): time 6.882e-05/0.3038, allocations: 37.7 kB / 1.227 GB, free: 6.77 MB / 0.9825 GB Notification: Performance of setup shared object (initialization): time 0.0001469/0.304, allocations: 334.8 kB / 1.228 GB, free: 6.434 MB / 0.9825 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002072/0.3042, allocations: 68.83 kB / 1.228 GB, free: 6.363 MB / 0.9825 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0002368/0.3044, allocations: 120.9 kB / 1.228 GB, free: 6.227 MB / 0.9825 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0004044/0.3048, allocations: 147.4 kB / 1.228 GB, free: 6.07 MB / 0.9825 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.625e-06/0.3048, allocations: 3.938 kB / 1.228 GB, free: 6.066 MB / 0.9825 GB Notification: Performance of matching and sorting (n=17) (initialization): time 0.000495/0.3053, allocations: 213.4 kB / 1.228 GB, free: 5.852 MB / 0.9825 GB Notification: Performance of prepare postOptimizeDAE: time 1.463e-05/0.3054, allocations: 5.719 kB / 1.228 GB, free: 5.848 MB / 0.9825 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.903e-06/0.3054, allocations: 3.938 kB / 1.228 GB, free: 5.844 MB / 0.9825 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.412e-05/0.3054, allocations: 4 kB / 1.228 GB, free: 5.84 MB / 0.9825 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001764/0.3056, allocations: 31.97 kB / 1.228 GB, free: 5.809 MB / 0.9825 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 7.634e-06/0.3056, allocations: 8.031 kB / 1.228 GB, free: 5.801 MB / 0.9825 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0001427/0.3057, allocations: 27.94 kB / 1.228 GB, free: 5.773 MB / 0.9825 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 1.397e-05/0.3058, allocations: 4 kB / 1.228 GB, free: 5.77 MB / 0.9825 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0002229/0.306, allocations: 156.1 kB / 1.228 GB, free: 5.613 MB / 0.9825 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.000174/0.3062, allocations: 93.11 kB / 1.228 GB, free: 5.504 MB / 0.9825 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0002896/0.3065, allocations: 143.2 kB / 1.229 GB, free: 5.355 MB / 0.9825 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.192e-06/0.3065, allocations: 0 / 1.229 GB, free: 5.355 MB / 0.9825 GB Notification: Performance of matching and sorting (n=17) (initialization_lambda0): time 0.0003831/0.3069, allocations: 185.5 kB / 1.229 GB, free: 5.168 MB / 0.9825 GB Notification: Performance of prepare postOptimizeDAE: time 1.063e-05/0.3069, allocations: 8 kB / 1.229 GB, free: 5.16 MB / 0.9825 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.803e-06/0.3069, allocations: 3.938 kB / 1.229 GB, free: 5.156 MB / 0.9825 GB Notification: Performance of postOpt tearingSystem (initialization): time 4.138e-06/0.3069, allocations: 3.938 kB / 1.229 GB, free: 5.152 MB / 0.9825 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001371/0.3071, allocations: 35.92 kB / 1.229 GB, free: 5.117 MB / 0.9825 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 4.699e-06/0.3071, allocations: 4 kB / 1.229 GB, free: 5.113 MB / 0.9825 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0001226/0.3072, allocations: 15.92 kB / 1.229 GB, free: 5.098 MB / 0.9825 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 9.077e-06/0.3072, allocations: 4 kB / 1.229 GB, free: 5.094 MB / 0.9825 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 4 * Number of states: 0 () * Number of discrete variables: 1 (conBoiRet.conPID.con1.y) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (17): * Single equations (assignments): 17 * 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 0.0001199/0.3073, allocations: 192.3 kB / 1.229 GB, free: 4.898 MB / 0.9825 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 5e-05/0.3074, allocations: 23.84 kB / 1.229 GB, free: 4.875 MB / 0.9825 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 5.542e-05/0.3074, allocations: 29.28 kB / 1.229 GB, free: 4.844 MB / 0.9825 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.615e-06/0.3075, allocations: 0 / 1.229 GB, free: 4.844 MB / 0.9825 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.978e-06/0.3075, allocations: 0 / 1.229 GB, free: 4.844 MB / 0.9825 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.16e-06/0.3075, allocations: 3.984 kB / 1.229 GB, free: 4.84 MB / 0.9825 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0003559/0.3078, allocations: 301.4 kB / 1.229 GB, free: 4.496 MB / 0.9825 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.543e-06/0.3078, allocations: 0 / 1.229 GB, free: 4.496 MB / 0.9825 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001644/0.308, allocations: 27.97 kB / 1.229 GB, free: 4.469 MB / 0.9825 GB Notification: Performance of postOpt tearingSystem (simulation): time 3.997e-06/0.308, allocations: 8 kB / 1.229 GB, free: 4.461 MB / 0.9825 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.606e-05/0.3081, allocations: 7.938 kB / 1.229 GB, free: 4.453 MB / 0.9825 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.533e-06/0.3081, allocations: 0 / 1.229 GB, free: 4.453 MB / 0.9825 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 9.22e-07/0.3081, allocations: 0 / 1.229 GB, free: 4.453 MB / 0.9825 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0007006/0.3088, allocations: 351.2 kB / 1.23 GB, free: 4.094 MB / 0.9825 GB Notification: Performance of postOpt removeConstants (simulation): time 7.146e-05/0.3088, allocations: 101 kB / 1.23 GB, free: 3.977 MB / 0.9825 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 2.874e-05/0.3089, allocations: 7.938 kB / 1.23 GB, free: 3.969 MB / 0.9825 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001483/0.309, allocations: 15.98 kB / 1.23 GB, free: 3.953 MB / 0.9825 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 3.925e-05/0.3091, allocations: 3.984 kB / 1.23 GB, free: 3.949 MB / 0.9825 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 8.937e-06/0.3091, allocations: 4 kB / 1.23 GB, free: 3.945 MB / 0.9825 GB Notification: Performance of sorting global known variables: time 0.000173/0.3093, allocations: 168.7 kB / 1.23 GB, free: 3.781 MB / 0.9825 GB Notification: Performance of sort global known variables: time 1.2e-07/0.3093, allocations: 0 / 1.23 GB, free: 3.781 MB / 0.9825 GB Notification: Performance of remove unused functions: time 0.0003719/0.3097, allocations: 67.73 kB / 1.23 GB, free: 3.715 MB / 0.9825 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 1 (conBoiRet.conPID.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 (12): * Single equations (assignments): 12 * 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 Backend phase and start with SimCode phase: time 0.001002/0.3107, allocations: 0.8886 MB / 1.231 GB, free: 2.797 MB / 0.9825 GB Notification: Performance of simCode: created initialization part: time 0.0006078/0.3113, allocations: 219.8 kB / 1.231 GB, free: 2.582 MB / 0.9825 GB Notification: Performance of simCode: created event and clocks part: time 2.134e-06/0.3113, allocations: 0 / 1.231 GB, free: 2.582 MB / 0.9825 GB Notification: Performance of simCode: created simulation system equations: time 0.0001997/0.3115, allocations: 68.98 kB / 1.231 GB, free: 2.516 MB / 0.9825 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0004094/0.3119, allocations: 46.61 kB / 1.231 GB, free: 2.469 MB / 0.9825 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003206/0.3151, allocations: 2.3 MB / 1.233 GB, free: 80 kB / 0.9825 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0003666/0.3155, allocations: 0.7363 MB / 1.234 GB, free: 15.32 MB / 0.9981 GB Notification: Performance of simCode: alias equations: time 0.0001004/0.3156, allocations: 21.55 kB / 1.234 GB, free: 15.3 MB / 0.9981 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001218/0.3158, allocations: 67.41 kB / 1.234 GB, free: 15.23 MB / 0.9981 GB Notification: Performance of SimCode: time 5.51e-07/0.3158, allocations: 0 / 1.234 GB, free: 15.23 MB / 0.9981 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.02696/0.3427, allocations: 4.149 MB / 1.238 GB, free: 11.22 MB / 0.9981 GB Notification: Performance of buildModelFMU: Generate platform static: time 7.828/8.17, allocations: 10.58 kB / 1.238 GB, free: 11.21 MB / 0.9981 GB (rm -f Buildings_11_Buildings.Examples.Tutorial.CDL.Controls.Validation.BoilerReturn.pipe ; mkfifo Buildings_11_Buildings.Examples.Tutorial.CDL.Controls.Validation.BoilerReturn.pipe ; head -c 1048576 < Buildings_11_Buildings.Examples.Tutorial.CDL.Controls.Validation.BoilerReturn.pipe >> ../files/Buildings_11_Buildings.Examples.Tutorial.CDL.Controls.Validation.BoilerReturn.sim & python3 -m fmpy simulate --output-file Buildings_11_Buildings.Examples.Tutorial.CDL.Controls.Validation.BoilerReturn_res.csv --start-time 0 --stop-time 3600 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 1.44 Buildings_11_Buildings_Examples_Tutorial_CDL_Controls_Validation_BoilerReturn.fmu > Buildings_11_Buildings.Examples.Tutorial.CDL.Controls.Validation.BoilerReturn.pipe 2>&1) diffSimulationResults("Buildings_11_Buildings.Examples.Tutorial.CDL.Controls.Validation.BoilerReturn_res.csv","/mnt/ReferenceFiles/Buildings/csv/maint_11.x/Buildings_Examples_Tutorial_CDL_Controls_Validation_BoilerReturn.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_11_Buildings.Examples.Tutorial.CDL.Controls.Validation.BoilerReturn.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches