Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_11_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-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.Utilities.IO.SignalExchange.Examples.FirstOrder,fileNamePrefix="Buildings_11_Buildings_Utilities_IO_SignalExchange_Examples_FirstOrder",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder,fileNamePrefix="Buildings_11_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 0.01129/0.01129, allocations: 99.53 kB / 15.73 MB, free: 6.48 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.002049/0.002049, allocations: 193.7 kB / 16.68 MB, free: 6.363 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.486/1.486, allocations: 222.9 MB / 240.4 MB, free: 4.301 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 2.894/2.894, allocations: 469.8 MB / 0.7425 GB, free: 7.285 MB / 0.5919 GB Notification: Performance of FrontEnd - loaded program: time 0.001925/0.001925, allocations: 71.89 kB / 1.065 GB, free: 13.59 MB / 0.8262 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.322/0.3239, allocations: 159.1 MB / 1.22 GB, free: 14.34 MB / 0.9825 GB Notification: Performance of NFInst.instantiate(Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder): time 0.004661/0.3286, allocations: 2.626 MB / 1.223 GB, free: 11.69 MB / 0.9825 GB Notification: Performance of NFInst.instExpressions: time 0.002118/0.3308, allocations: 0.904 MB / 1.224 GB, free: 10.78 MB / 0.9825 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0003964/0.3312, allocations: 12 kB / 1.224 GB, free: 10.77 MB / 0.9825 GB Notification: Performance of NFTyping.typeComponents: time 0.0002887/0.3315, allocations: 63.33 kB / 1.224 GB, free: 10.71 MB / 0.9825 GB Notification: Performance of NFTyping.typeBindings: time 0.0002802/0.3318, allocations: 63.39 kB / 1.224 GB, free: 10.64 MB / 0.9825 GB Notification: Performance of NFTyping.typeClassSections: time 0.000661/0.3325, allocations: 227.7 kB / 1.224 GB, free: 10.42 MB / 0.9825 GB Notification: Performance of NFFlatten.flatten: time 0.0006626/0.3332, allocations: 455.6 kB / 1.224 GB, free: 9.973 MB / 0.9825 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0004353/0.3336, allocations: 229.1 kB / 1.225 GB, free: 9.746 MB / 0.9825 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0002235/0.3339, allocations: 139.5 kB / 1.225 GB, free: 9.609 MB / 0.9825 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0002292/0.3341, allocations: 155.2 kB / 1.225 GB, free: 9.457 MB / 0.9825 GB Notification: Performance of NFPackage.collectConstants: time 9.005e-05/0.3342, allocations: 48 kB / 1.225 GB, free: 9.41 MB / 0.9825 GB Notification: Performance of NFFlatten.collectFunctions: time 8.17e-05/0.3343, allocations: 52 kB / 1.225 GB, free: 9.359 MB / 0.9825 GB Notification: Performance of NFScalarize.scalarize: time 8.902e-05/0.3344, allocations: 87.66 kB / 1.225 GB, free: 9.273 MB / 0.9825 GB Notification: Performance of NFVerifyModel.verify: time 0.0001911/0.3346, allocations: 187 kB / 1.225 GB, free: 9.09 MB / 0.9825 GB Notification: Performance of NFConvertDAE.convert: time 0.0007397/0.3353, allocations: 0.6227 MB / 1.226 GB, free: 8.465 MB / 0.9825 GB Notification: Performance of FrontEnd - DAE generated: time 4.509e-06/0.3353, allocations: 0 / 1.226 GB, free: 8.465 MB / 0.9825 GB Notification: Performance of FrontEnd: time 1.252e-06/0.3353, allocations: 4 kB / 1.226 GB, free: 8.461 MB / 0.9825 GB Notification: Performance of Transformations before backend: time 1.838e-05/0.3354, allocations: 0 / 1.226 GB, free: 8.461 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 0.001159/0.3365, allocations: 0.662 MB / 1.226 GB, free: 7.75 MB / 0.9825 GB Notification: Performance of prepare preOptimizeDAE: time 4.031e-05/0.3366, allocations: 8.031 kB / 1.226 GB, free: 7.742 MB / 0.9825 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 8.923e-05/0.3367, allocations: 66.72 kB / 1.227 GB, free: 7.668 MB / 0.9825 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 9.108e-05/0.3368, allocations: 44.7 kB / 1.227 GB, free: 7.625 MB / 0.9825 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0006089/0.3374, allocations: 383.5 kB / 1.227 GB, free: 7.215 MB / 0.9825 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.973e-05/0.3374, allocations: 24.94 kB / 1.227 GB, free: 7.188 MB / 0.9825 GB Notification: Performance of preOpt expandDerOperator (simulation): time 6.853e-05/0.3375, allocations: 32.31 kB / 1.227 GB, free: 7.156 MB / 0.9825 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.000651/0.3382, allocations: 329.5 kB / 1.227 GB, free: 6.82 MB / 0.9825 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.11e-05/0.3382, allocations: 0 / 1.227 GB, free: 6.82 MB / 0.9825 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 3.401e-05/0.3382, allocations: 19.97 kB / 1.227 GB, free: 6.801 MB / 0.9825 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 9.097e-06/0.3382, allocations: 8 kB / 1.227 GB, free: 6.793 MB / 0.9825 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0005226/0.3388, allocations: 234.1 kB / 1.228 GB, free: 6.566 MB / 0.9825 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001851/0.3406, allocations: 1.151 MB / 1.229 GB, free: 5.352 MB / 0.9825 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0005477/0.3412, allocations: 234.8 kB / 1.229 GB, free: 5.113 MB / 0.9825 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002182/0.3414, allocations: 92.83 kB / 1.229 GB, free: 5.02 MB / 0.9825 GB Notification: Performance of preOpt evalFunc (simulation): time 4.608e-05/0.3415, allocations: 7.938 kB / 1.229 GB, free: 5.012 MB / 0.9825 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.826e-05/0.3415, allocations: 38.56 kB / 1.229 GB, free: 4.965 MB / 0.9825 GB Notification: Performance of pre-optimization done (n=16): time 1.583e-06/0.3415, allocations: 0 / 1.229 GB, free: 4.965 MB / 0.9825 GB Notification: Performance of matching and sorting (n=16): time 0.0007266/0.3423, allocations: 299.8 kB / 1.229 GB, free: 4.668 MB / 0.9825 GB Notification: Performance of inlineWhenForInitialization (initialization): time 6.373e-05/0.3423, allocations: 85.09 kB / 1.229 GB, free: 4.566 MB / 0.9825 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0004082/0.3428, allocations: 328.5 kB / 1.23 GB, free: 4.234 MB / 0.9825 GB Notification: Performance of collectPreVariables (initialization): time 2.691e-05/0.3428, allocations: 29.7 kB / 1.23 GB, free: 4.199 MB / 0.9825 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001825/0.343, allocations: 200.3 kB / 1.23 GB, free: 4 MB / 0.9825 GB Notification: Performance of collectInitialBindings (initialization): time 5.955e-05/0.3431, allocations: 55.47 kB / 1.23 GB, free: 3.945 MB / 0.9825 GB Notification: Performance of simplifyInitialFunctions (initialization): time 9.601e-05/0.3432, allocations: 45.7 kB / 1.23 GB, free: 3.895 MB / 0.9825 GB Notification: Performance of setup shared object (initialization): time 0.0001678/0.3433, allocations: 342.7 kB / 1.23 GB, free: 3.551 MB / 0.9825 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002083/0.3435, allocations: 88.77 kB / 1.23 GB, free: 3.461 MB / 0.9825 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0002311/0.3438, allocations: 125.6 kB / 1.231 GB, free: 3.328 MB / 0.9825 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0003983/0.3442, allocations: 180.2 kB / 1.231 GB, free: 3.145 MB / 0.9825 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.195e-06/0.3442, allocations: 4 kB / 1.231 GB, free: 3.141 MB / 0.9825 GB Notification: Performance of matching and sorting (n=20) (initialization): time 0.0005402/0.3447, allocations: 259 kB / 1.231 GB, free: 2.883 MB / 0.9825 GB Notification: Performance of prepare postOptimizeDAE: time 1.701e-05/0.3448, allocations: 4 kB / 1.231 GB, free: 2.879 MB / 0.9825 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.748e-06/0.3448, allocations: 4 kB / 1.231 GB, free: 2.875 MB / 0.9825 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.803e-05/0.3448, allocations: 0 / 1.231 GB, free: 2.875 MB / 0.9825 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001911/0.345, allocations: 35.92 kB / 1.231 GB, free: 2.84 MB / 0.9825 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.383e-05/0.345, allocations: 11.92 kB / 1.231 GB, free: 2.828 MB / 0.9825 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.000147/0.3452, allocations: 19.88 kB / 1.231 GB, free: 2.809 MB / 0.9825 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 1.99e-05/0.3452, allocations: 8 kB / 1.231 GB, free: 2.801 MB / 0.9825 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0002785/0.3455, allocations: 196.2 kB / 1.231 GB, free: 2.605 MB / 0.9825 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.000172/0.3457, allocations: 107.4 kB / 1.231 GB, free: 2.488 MB / 0.9825 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0002941/0.346, allocations: 160.8 kB / 1.232 GB, free: 2.324 MB / 0.9825 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.423e-06/0.346, allocations: 4 kB / 1.232 GB, free: 2.32 MB / 0.9825 GB Notification: Performance of matching and sorting (n=20) (initialization_lambda0): time 0.0004129/0.3464, allocations: 233.3 kB / 1.232 GB, free: 2.086 MB / 0.9825 GB Notification: Performance of prepare postOptimizeDAE: time 1.091e-05/0.3464, allocations: 8 kB / 1.232 GB, free: 2.078 MB / 0.9825 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.894e-06/0.3464, allocations: 0 / 1.232 GB, free: 2.078 MB / 0.9825 GB Notification: Performance of postOpt tearingSystem (initialization): time 3.757e-06/0.3465, allocations: 0 / 1.232 GB, free: 2.078 MB / 0.9825 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001324/0.3466, allocations: 31.92 kB / 1.232 GB, free: 2.047 MB / 0.9825 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 3.356e-06/0.3466, allocations: 0 / 1.232 GB, free: 2.047 MB / 0.9825 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0001324/0.3467, allocations: 23.83 kB / 1.232 GB, free: 2.023 MB / 0.9825 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 1.281e-05/0.3468, allocations: 4 kB / 1.232 GB, free: 2.02 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 0.0001407/0.3469, allocations: 196.3 kB / 1.232 GB, free: 1.82 MB / 0.9825 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 5.905e-05/0.347, allocations: 27.81 kB / 1.232 GB, free: 1.793 MB / 0.9825 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 9.091e-05/0.3471, allocations: 35.28 kB / 1.232 GB, free: 1.754 MB / 0.9825 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.91e-06/0.3471, allocations: 4 kB / 1.232 GB, free: 1.75 MB / 0.9825 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 8.857e-06/0.3471, allocations: 7.922 kB / 1.232 GB, free: 1.742 MB / 0.9825 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.418e-06/0.3471, allocations: 3.938 kB / 1.232 GB, free: 1.738 MB / 0.9825 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.000503/0.3476, allocations: 409.3 kB / 1.232 GB, free: 1.289 MB / 0.9825 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.779e-06/0.3476, allocations: 4 kB / 1.232 GB, free: 1.285 MB / 0.9825 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001772/0.3478, allocations: 23.98 kB / 1.232 GB, free: 1.262 MB / 0.9825 GB Notification: Performance of postOpt tearingSystem (simulation): time 5.059e-06/0.3478, allocations: 8 kB / 1.233 GB, free: 1.254 MB / 0.9825 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.069e-05/0.3478, allocations: 4 kB / 1.233 GB, free: 1.25 MB / 0.9825 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 2.595e-06/0.3479, allocations: 3.938 kB / 1.233 GB, free: 1.246 MB / 0.9825 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.297e-06/0.3479, allocations: 3.938 kB / 1.233 GB, free: 1.242 MB / 0.9825 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0007568/0.3486, allocations: 435.1 kB / 1.233 GB, free: 0.8008 MB / 0.9825 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001366/0.3488, allocations: 129 kB / 1.233 GB, free: 0.6562 MB / 0.9825 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 3.805e-05/0.3488, allocations: 4 kB / 1.233 GB, free: 0.6523 MB / 0.9825 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001552/0.349, allocations: 15.98 kB / 1.233 GB, free: 0.6367 MB / 0.9825 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 6.18e-05/0.3491, allocations: 11.92 kB / 1.233 GB, free: 0.625 MB / 0.9825 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 1.749e-05/0.3491, allocations: 8 kB / 1.233 GB, free: 0.6172 MB / 0.9825 GB Notification: Performance of sorting global known variables: time 0.0002665/0.3493, allocations: 231.1 kB / 1.233 GB, free: 400 kB / 0.9825 GB Notification: Performance of sort global known variables: time 2.1e-07/0.3494, allocations: 0 / 1.233 GB, free: 400 kB / 0.9825 GB Notification: Performance of remove unused functions: time 0.0004421/0.3498, allocations: 95.67 kB / 1.233 GB, free: 304 kB / 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 0.001123/0.3509, allocations: 0.9719 MB / 1.234 GB, free: 15.3 MB / 0.9981 GB Notification: Performance of simCode: created initialization part: time 0.0006791/0.3516, allocations: 287.9 kB / 1.235 GB, free: 15.02 MB / 0.9981 GB Notification: Performance of simCode: created event and clocks part: time 2.174e-06/0.3516, allocations: 0 / 1.235 GB, free: 15.02 MB / 0.9981 GB Notification: Performance of simCode: created simulation system equations: time 0.0002148/0.3519, allocations: 95.89 kB / 1.235 GB, free: 14.93 MB / 0.9981 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0005908/0.3525, allocations: 89.11 kB / 1.235 GB, free: 14.85 MB / 0.9981 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.00446/0.3569, allocations: 2.941 MB / 1.238 GB, free: 11.82 MB / 0.9981 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004465/0.3574, allocations: 0.7714 MB / 1.238 GB, free: 11.03 MB / 0.9981 GB Notification: Performance of simCode: alias equations: time 0.0001814/0.3576, allocations: 30.27 kB / 1.238 GB, free: 11 MB / 0.9981 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001883/0.3578, allocations: 107.4 kB / 1.239 GB, free: 10.89 MB / 0.9981 GB Notification: Performance of SimCode: time 8.42e-07/0.3578, allocations: 0 / 1.239 GB, free: 10.89 MB / 0.9981 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.03331/0.3911, allocations: 6.7 MB / 1.245 GB, free: 4.316 MB / 0.9981 GB Notification: Performance of buildModelFMU: Generate platform static: time 8.568/8.959, allocations: 10.5 kB / 1.245 GB, free: 4.309 MB / 0.9981 GB (rm -f Buildings_11_Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder.pipe ; mkfifo Buildings_11_Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder.pipe ; head -c 1048576 < Buildings_11_Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder.pipe >> ../files/Buildings_11_Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder.sim & python3 -m fmpy simulate --output-file Buildings_11_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_11_Buildings_Utilities_IO_SignalExchange_Examples_FirstOrder.fmu > Buildings_11_Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder.pipe 2>&1) diffSimulationResults("Buildings_11_Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder_res.csv","/mnt/ReferenceFiles/Buildings/csv/maint_11.x/Buildings_Utilities_IO_SignalExchange_Examples_FirstOrder.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_11_Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches