Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder.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-master/package.mo", uses=false) Using package Buildings with version 11.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.0-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.Utilities.IO.SignalExchange.Examples.FirstOrder,fileNamePrefix="Buildings_latest_Buildings_Utilities_IO_SignalExchange_Examples_FirstOrder",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder,fileNamePrefix="Buildings_latest_Buildings_Utilities_IO_SignalExchange_Examples_FirstOrder",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 0.007576/0.007576, allocations: 99.34 kB / 15.73 MB, free: 6.008 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001661/0.001661, allocations: 198.4 kB / 16.67 MB, free: 5.934 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.398/1.398, 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 11.1.0-master/package.mo): time 2.818/2.818, allocations: 469.4 MB / 0.7421 GB, free: 7.648 MB / 0.5919 GB Notification: Performance of FrontEnd - loaded program: time 0.001422/0.001422, allocations: 59.91 kB / 1.064 GB, free: 13.93 MB / 0.8262 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3233/0.3247, allocations: 159.1 MB / 1.22 GB, free: 14.69 MB / 0.9825 GB Notification: Performance of NFInst.instantiate(Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder): time 0.004064/0.3288, allocations: 2.607 MB / 1.222 GB, free: 12.06 MB / 0.9825 GB Notification: Performance of NFInst.instExpressions: time 0.001673/0.3305, allocations: 0.9195 MB / 1.223 GB, free: 11.13 MB / 0.9825 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0002768/0.3309, allocations: 11.94 kB / 1.223 GB, free: 11.12 MB / 0.9825 GB Notification: Performance of NFTyping.typeComponents: time 0.0002249/0.3311, allocations: 63.39 kB / 1.223 GB, free: 11.06 MB / 0.9825 GB Notification: Performance of NFTyping.typeBindings: time 0.0002152/0.3313, allocations: 67.41 kB / 1.223 GB, free: 10.99 MB / 0.9825 GB Notification: Performance of NFTyping.typeClassSections: time 0.0005154/0.3318, allocations: 235.6 kB / 1.224 GB, free: 10.76 MB / 0.9825 GB Notification: Performance of NFFlatten.flatten: time 0.0004921/0.3323, allocations: 451.7 kB / 1.224 GB, free: 10.32 MB / 0.9825 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0003388/0.3327, allocations: 225.1 kB / 1.224 GB, free: 10.09 MB / 0.9825 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0001829/0.3329, allocations: 151.4 kB / 1.224 GB, free: 9.945 MB / 0.9825 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0001804/0.3331, allocations: 143.2 kB / 1.224 GB, free: 9.805 MB / 0.9825 GB Notification: Performance of NFPackage.collectConstants: time 6.601e-05/0.3331, allocations: 52 kB / 1.224 GB, free: 9.754 MB / 0.9825 GB Notification: Performance of NFFlatten.collectFunctions: time 5.285e-05/0.3332, allocations: 52 kB / 1.225 GB, free: 9.703 MB / 0.9825 GB Notification: Performance of NFScalarize.scalarize: time 0.0001191/0.3333, allocations: 91.69 kB / 1.225 GB, free: 9.613 MB / 0.9825 GB Notification: Performance of NFVerifyModel.verify: time 0.0001758/0.3335, allocations: 195 kB / 1.225 GB, free: 9.422 MB / 0.9825 GB Notification: Performance of NFConvertDAE.convert: time 0.0006722/0.3342, allocations: 0.6149 MB / 1.225 GB, free: 8.805 MB / 0.9825 GB Notification: Performance of FrontEnd - DAE generated: time 4.157e-06/0.3342, allocations: 0 / 1.225 GB, free: 8.805 MB / 0.9825 GB Notification: Performance of FrontEnd: time 2.865e-06/0.3342, allocations: 4 kB / 1.225 GB, free: 8.801 MB / 0.9825 GB Notification: Performance of Transformations before backend: time 1.647e-05/0.3342, allocations: 0 / 1.225 GB, free: 8.801 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: 66 * Number of variables: 66 Notification: Performance of Generate backend data structure: time 0.001055/0.3353, allocations: 0.6659 MB / 1.226 GB, free: 8.086 MB / 0.9825 GB Notification: Performance of prepare preOptimizeDAE: time 4.286e-05/0.3354, allocations: 12.03 kB / 1.226 GB, free: 8.074 MB / 0.9825 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 7.17e-05/0.3354, allocations: 62.73 kB / 1.226 GB, free: 8.004 MB / 0.9825 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 7.811e-05/0.3355, allocations: 40.7 kB / 1.226 GB, free: 7.965 MB / 0.9825 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0005144/0.336, allocations: 391.4 kB / 1.227 GB, free: 7.547 MB / 0.9825 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.068e-05/0.3361, allocations: 28.94 kB / 1.227 GB, free: 7.516 MB / 0.9825 GB Notification: Performance of preOpt expandDerOperator (simulation): time 5.193e-05/0.3361, allocations: 28.36 kB / 1.227 GB, free: 7.488 MB / 0.9825 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0005942/0.3367, allocations: 329.5 kB / 1.227 GB, free: 7.152 MB / 0.9825 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.25e-05/0.3368, allocations: 0 / 1.227 GB, free: 7.152 MB / 0.9825 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.948e-05/0.3368, allocations: 8 kB / 1.227 GB, free: 7.145 MB / 0.9825 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 9.838e-06/0.3368, allocations: 8 kB / 1.227 GB, free: 7.137 MB / 0.9825 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0005849/0.3374, allocations: 238.1 kB / 1.227 GB, free: 6.902 MB / 0.9825 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001559/0.339, allocations: 1.159 MB / 1.228 GB, free: 5.68 MB / 0.9825 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0004765/0.3395, allocations: 230.3 kB / 1.229 GB, free: 5.449 MB / 0.9825 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0001952/0.3397, allocations: 96.83 kB / 1.229 GB, free: 5.352 MB / 0.9825 GB Notification: Performance of preOpt evalFunc (simulation): time 2.35e-05/0.3397, allocations: 4 kB / 1.229 GB, free: 5.348 MB / 0.9825 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.749e-05/0.3397, allocations: 34.56 kB / 1.229 GB, free: 5.305 MB / 0.9825 GB Notification: Performance of pre-optimization done (n=16): time 1.372e-06/0.3397, allocations: 0 / 1.229 GB, free: 5.305 MB / 0.9825 GB Notification: Performance of matching and sorting (n=16): time 0.000675/0.3404, allocations: 301.2 kB / 1.229 GB, free: 5.004 MB / 0.9825 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.882e-05/0.3405, allocations: 85.11 kB / 1.229 GB, free: 4.902 MB / 0.9825 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.000342/0.3408, allocations: 328.5 kB / 1.229 GB, free: 4.574 MB / 0.9825 GB Notification: Performance of collectPreVariables (initialization): time 2.514e-05/0.3409, allocations: 33.69 kB / 1.229 GB, free: 4.535 MB / 0.9825 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001673/0.341, allocations: 196.3 kB / 1.23 GB, free: 4.34 MB / 0.9825 GB Notification: Performance of collectInitialBindings (initialization): time 4.885e-05/0.3411, allocations: 55.47 kB / 1.23 GB, free: 4.285 MB / 0.9825 GB Notification: Performance of simplifyInitialFunctions (initialization): time 8.129e-05/0.3412, allocations: 45.7 kB / 1.23 GB, free: 4.234 MB / 0.9825 GB Notification: Performance of setup shared object (initialization): time 0.0001617/0.3413, allocations: 342.8 kB / 1.23 GB, free: 3.891 MB / 0.9825 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0001943/0.3415, allocations: 88.83 kB / 1.23 GB, free: 3.801 MB / 0.9825 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0002029/0.3418, allocations: 120.5 kB / 1.23 GB, free: 3.672 MB / 0.9825 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0003596/0.3421, allocations: 188.2 kB / 1.23 GB, free: 3.48 MB / 0.9825 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.004e-06/0.3421, allocations: 0 / 1.23 GB, free: 3.48 MB / 0.9825 GB Notification: Performance of matching and sorting (n=20) (initialization): time 0.0005286/0.3427, allocations: 259.1 kB / 1.231 GB, free: 3.223 MB / 0.9825 GB Notification: Performance of prepare postOptimizeDAE: time 1.557e-05/0.3427, allocations: 8 kB / 1.231 GB, free: 3.215 MB / 0.9825 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.8e-06/0.3427, allocations: 0 / 1.231 GB, free: 3.215 MB / 0.9825 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.468e-05/0.3427, allocations: 0 / 1.231 GB, free: 3.215 MB / 0.9825 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001914/0.3429, allocations: 39.98 kB / 1.231 GB, free: 3.176 MB / 0.9825 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 7.213e-06/0.3429, allocations: 7.938 kB / 1.231 GB, free: 3.168 MB / 0.9825 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0001359/0.3431, allocations: 19.88 kB / 1.231 GB, free: 3.148 MB / 0.9825 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 1.689e-05/0.3431, allocations: 8 kB / 1.231 GB, free: 3.141 MB / 0.9825 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0002477/0.3433, allocations: 196.1 kB / 1.231 GB, free: 2.945 MB / 0.9825 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0001534/0.3435, allocations: 101.8 kB / 1.231 GB, free: 2.836 MB / 0.9825 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0002694/0.3438, allocations: 172.4 kB / 1.231 GB, free: 2.66 MB / 0.9825 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.052e-06/0.3438, allocations: 0 / 1.231 GB, free: 2.66 MB / 0.9825 GB Notification: Performance of matching and sorting (n=20) (initialization_lambda0): time 0.0003676/0.3442, allocations: 233.2 kB / 1.231 GB, free: 2.426 MB / 0.9825 GB Notification: Performance of prepare postOptimizeDAE: time 8.846e-06/0.3442, allocations: 4 kB / 1.231 GB, free: 2.422 MB / 0.9825 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.084e-06/0.3442, allocations: 0 / 1.231 GB, free: 2.422 MB / 0.9825 GB Notification: Performance of postOpt tearingSystem (initialization): time 6.102e-06/0.3442, allocations: 4 kB / 1.231 GB, free: 2.418 MB / 0.9825 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001299/0.3443, allocations: 27.98 kB / 1.231 GB, free: 2.391 MB / 0.9825 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 5.27e-06/0.3444, allocations: 12 kB / 1.231 GB, free: 2.379 MB / 0.9825 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.000124/0.3445, allocations: 19.81 kB / 1.231 GB, free: 2.359 MB / 0.9825 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 1.142e-05/0.3445, allocations: 4 kB / 1.231 GB, free: 2.355 MB / 0.9825 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 3 * Number of states: 0 () * Number of discrete variables: 3 (expMod.oveWriAct_activate,expMod.oveWriSet_activate,expMod.mod.conPI.I.local_reset) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (20): * Single equations (assignments): 20 * 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 0.0001233/0.3446, allocations: 188.8 kB / 1.232 GB, free: 2.164 MB / 0.9825 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 5.903e-05/0.3447, allocations: 31.81 kB / 1.232 GB, free: 2.133 MB / 0.9825 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 7.792e-05/0.3448, allocations: 35.28 kB / 1.232 GB, free: 2.094 MB / 0.9825 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.37e-06/0.3448, allocations: 4 kB / 1.232 GB, free: 2.09 MB / 0.9825 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 7.534e-06/0.3448, allocations: 3.938 kB / 1.232 GB, free: 2.086 MB / 0.9825 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.456e-06/0.3448, allocations: 4 kB / 1.232 GB, free: 2.082 MB / 0.9825 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0004441/0.3453, allocations: 409.3 kB / 1.232 GB, free: 1.633 MB / 0.9825 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.934e-06/0.3453, allocations: 4 kB / 1.232 GB, free: 1.629 MB / 0.9825 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.000183/0.3455, allocations: 27.92 kB / 1.232 GB, free: 1.602 MB / 0.9825 GB Notification: Performance of postOpt tearingSystem (simulation): time 3.376e-06/0.3455, allocations: 0 / 1.232 GB, free: 1.602 MB / 0.9825 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.246e-05/0.3455, allocations: 7.984 kB / 1.232 GB, free: 1.594 MB / 0.9825 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 3.626e-06/0.3455, allocations: 4 kB / 1.232 GB, free: 1.59 MB / 0.9825 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.999e-06/0.3455, allocations: 3.938 kB / 1.232 GB, free: 1.586 MB / 0.9825 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.00073/0.3463, allocations: 439.7 kB / 1.233 GB, free: 1.145 MB / 0.9825 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001352/0.3464, allocations: 128.9 kB / 1.233 GB, free: 1 MB / 0.9825 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 4.091e-05/0.3464, allocations: 4 kB / 1.233 GB, free: 0.9961 MB / 0.9825 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001515/0.3466, allocations: 11.98 kB / 1.233 GB, free: 0.9844 MB / 0.9825 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 5.555e-05/0.3467, allocations: 15.91 kB / 1.233 GB, free: 0.9688 MB / 0.9825 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 1.42e-05/0.3467, allocations: 11.94 kB / 1.233 GB, free: 0.957 MB / 0.9825 GB Notification: Performance of sorting global known variables: time 0.0002413/0.3469, allocations: 235.1 kB / 1.233 GB, free: 0.7266 MB / 0.9825 GB Notification: Performance of sort global known variables: time 1.5e-07/0.3469, allocations: 0 / 1.233 GB, free: 0.7266 MB / 0.9825 GB Notification: Performance of remove unused functions: time 0.0004191/0.3474, allocations: 95.67 kB / 1.233 GB, free: 0.6328 MB / 0.9825 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 2 (expMod.mod.conPI.I.y,expMod.mod.firOrd.y) * Number of discrete variables: 2 (expMod.oveWriSet_activate,expMod.oveWriAct_activate) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (16): * Single equations (assignments): 16 * 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 0.0009678/0.3483, allocations: 0.9622 MB / 1.234 GB, free: 15.64 MB / 0.9981 GB Notification: Performance of simCode: created initialization part: time 0.0006081/0.349, allocations: 286.7 kB / 1.234 GB, free: 15.37 MB / 0.9981 GB Notification: Performance of simCode: created event and clocks part: time 2.745e-06/0.349, allocations: 0 / 1.234 GB, free: 15.37 MB / 0.9981 GB Notification: Performance of simCode: created simulation system equations: time 0.0002/0.3492, allocations: 95.91 kB / 1.234 GB, free: 15.27 MB / 0.9981 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.000582/0.3498, allocations: 90.12 kB / 1.234 GB, free: 15.19 MB / 0.9981 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003964/0.3537, allocations: 2.94 MB / 1.237 GB, free: 12.16 MB / 0.9981 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0003935/0.3542, allocations: 0.7753 MB / 1.238 GB, free: 11.36 MB / 0.9981 GB Notification: Performance of simCode: alias equations: time 0.0001635/0.3543, allocations: 30.28 kB / 1.238 GB, free: 11.33 MB / 0.9981 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.000171/0.3545, allocations: 99.41 kB / 1.238 GB, free: 11.23 MB / 0.9981 GB Notification: Performance of SimCode: time 3.01e-07/0.3545, allocations: 0 / 1.238 GB, free: 11.23 MB / 0.9981 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.02698/0.3815, allocations: 6.695 MB / 1.245 GB, free: 4.676 MB / 0.9981 GB Notification: Performance of buildModelFMU: Generate platform static: time 8.203/8.584, allocations: 4.062 kB / 1.245 GB, free: 4.672 MB / 0.9981 GB (rm -f Buildings_latest_Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder.pipe ; mkfifo Buildings_latest_Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder.pipe ; head -c 1048576 < Buildings_latest_Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder.pipe >> ../files/Buildings_latest_Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder.sim & python3 -m fmpy simulate --output-file Buildings_latest_Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder_res.csv --start-time 0 --stop-time 150 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.06 Buildings_latest_Buildings_Utilities_IO_SignalExchange_Examples_FirstOrder.fmu > Buildings_latest_Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder.pipe 2>&1) diffSimulationResults("Buildings_latest_Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder_res.csv","/mnt/ReferenceFiles/Buildings/csv/master/Buildings_Utilities_IO_SignalExchange_Examples_FirstOrder.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_latest_Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches