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 0.001328/0.001328, allocations: 108 kB / 15.6 MB, free: 132 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001294/0.001294, allocations: 197.3 kB / 16.53 MB, free: 6.391 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.45/1.45, allocations: 222.9 MB / 240.2 MB, free: 4.406 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 2.818/2.818, allocations: 469.8 MB / 0.7424 GB, free: 7.359 MB / 0.5919 GB Notification: Performance of FrontEnd - loaded program: time 0.001921/0.001921, allocations: 67.88 kB / 0.9087 GB, free: 34.34 MB / 0.7169 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2532/0.2552, allocations: 159.2 MB / 1.064 GB, free: 14.2 MB / 0.8262 GB Notification: Performance of NFInst.instantiate(Buildings.Utilities.IO.SignalExchange.Examples.FirstOrder): time 0.004156/0.2594, allocations: 2.614 MB / 1.067 GB, free: 11.57 MB / 0.8262 GB Notification: Performance of NFInst.instExpressions: time 0.001514/0.2609, allocations: 0.9079 MB / 1.068 GB, free: 10.66 MB / 0.8262 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0001698/0.2611, allocations: 8 kB / 1.068 GB, free: 10.65 MB / 0.8262 GB Notification: Performance of NFTyping.typeComponents: time 0.0001889/0.2613, allocations: 67.33 kB / 1.068 GB, free: 10.58 MB / 0.8262 GB Notification: Performance of NFTyping.typeBindings: time 0.0001466/0.2614, allocations: 59.41 kB / 1.068 GB, free: 10.52 MB / 0.8262 GB Notification: Performance of NFTyping.typeClassSections: time 0.000477/0.2619, allocations: 241.4 kB / 1.068 GB, free: 10.29 MB / 0.8262 GB Notification: Performance of NFFlatten.flatten: time 0.0004528/0.2624, allocations: 455.6 kB / 1.068 GB, free: 9.844 MB / 0.8262 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0003505/0.2628, allocations: 225.1 kB / 1.069 GB, free: 9.621 MB / 0.8262 GB Notification: Performance of NFEvalConstants.evaluate: time 0.000149/0.2629, allocations: 135.5 kB / 1.069 GB, free: 9.488 MB / 0.8262 GB Notification: Performance of NFSimplifyModel.simplify: time 0.000162/0.2631, allocations: 151.2 kB / 1.069 GB, free: 9.34 MB / 0.8262 GB Notification: Performance of NFPackage.collectConstants: time 6.626e-05/0.2632, allocations: 48 kB / 1.069 GB, free: 9.293 MB / 0.8262 GB Notification: Performance of NFFlatten.collectFunctions: time 6.068e-05/0.2632, allocations: 52 kB / 1.069 GB, free: 9.242 MB / 0.8262 GB Notification: Performance of NFScalarize.scalarize: time 7.895e-05/0.2633, allocations: 91.66 kB / 1.069 GB, free: 9.152 MB / 0.8262 GB Notification: Performance of NFVerifyModel.verify: time 0.0001598/0.2635, allocations: 195 kB / 1.069 GB, free: 8.961 MB / 0.8262 GB Notification: Performance of NFConvertDAE.convert: time 0.0005439/0.264, allocations: 0.6001 MB / 1.07 GB, free: 8.359 MB / 0.8262 GB Notification: Performance of FrontEnd - DAE generated: time 3.347e-06/0.264, allocations: 0 / 1.07 GB, free: 8.359 MB / 0.8262 GB Notification: Performance of FrontEnd: time 1.202e-06/0.264, allocations: 0 / 1.07 GB, free: 8.359 MB / 0.8262 GB Notification: Performance of Transformations before backend: time 5.891e-06/0.2641, allocations: 0 / 1.07 GB, free: 8.359 MB / 0.8262 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 0.0009357/0.265, allocations: 0.6507 MB / 1.07 GB, free: 7.66 MB / 0.8262 GB Notification: Performance of prepare preOptimizeDAE: time 3.244e-05/0.265, allocations: 8.031 kB / 1.07 GB, free: 7.652 MB / 0.8262 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 7.286e-05/0.2651, allocations: 66.72 kB / 1.07 GB, free: 7.578 MB / 0.8262 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 7.513e-05/0.2652, allocations: 40.47 kB / 1.07 GB, free: 7.539 MB / 0.8262 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0004562/0.2657, allocations: 383.2 kB / 1.071 GB, free: 7.125 MB / 0.8262 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.602e-05/0.2657, allocations: 24.94 kB / 1.071 GB, free: 7.102 MB / 0.8262 GB Notification: Performance of preOpt expandDerOperator (simulation): time 4.933e-05/0.2657, allocations: 24.38 kB / 1.071 GB, free: 7.078 MB / 0.8262 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0005891/0.2663, allocations: 333.5 kB / 1.071 GB, free: 6.738 MB / 0.8262 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.054e-05/0.2664, allocations: 0 / 1.071 GB, free: 6.738 MB / 0.8262 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.978e-05/0.2664, allocations: 12 kB / 1.071 GB, free: 6.727 MB / 0.8262 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 7.364e-06/0.2664, allocations: 4 kB / 1.071 GB, free: 6.723 MB / 0.8262 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0005198/0.2669, allocations: 238.1 kB / 1.071 GB, free: 6.488 MB / 0.8262 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001546/0.2685, allocations: 1.17 MB / 1.073 GB, free: 5.262 MB / 0.8262 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0005007/0.269, allocations: 227.8 kB / 1.073 GB, free: 5.031 MB / 0.8262 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002051/0.2692, allocations: 98.23 kB / 1.073 GB, free: 4.934 MB / 0.8262 GB Notification: Performance of preOpt evalFunc (simulation): time 2.672e-05/0.2692, allocations: 7.938 kB / 1.073 GB, free: 4.926 MB / 0.8262 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.654e-05/0.2693, allocations: 30.56 kB / 1.073 GB, free: 4.887 MB / 0.8262 GB Notification: Performance of pre-optimization done (n=16): time 3.647e-06/0.2693, allocations: 7.922 kB / 1.073 GB, free: 4.879 MB / 0.8262 GB Notification: Performance of matching and sorting (n=16): time 0.0006923/0.27, allocations: 301.2 kB / 1.073 GB, free: 4.578 MB / 0.8262 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.128e-05/0.27, allocations: 85.05 kB / 1.073 GB, free: 4.477 MB / 0.8262 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0003748/0.2704, allocations: 332.5 kB / 1.074 GB, free: 4.133 MB / 0.8262 GB Notification: Performance of collectPreVariables (initialization): time 2.51e-05/0.2705, allocations: 25.7 kB / 1.074 GB, free: 4.102 MB / 0.8262 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001617/0.2706, allocations: 200 kB / 1.074 GB, free: 3.902 MB / 0.8262 GB Notification: Performance of collectInitialBindings (initialization): time 4.767e-05/0.2707, allocations: 47.27 kB / 1.074 GB, free: 3.855 MB / 0.8262 GB Notification: Performance of simplifyInitialFunctions (initialization): time 7.796e-05/0.2708, allocations: 45.7 kB / 1.074 GB, free: 3.805 MB / 0.8262 GB Notification: Performance of setup shared object (initialization): time 0.0001591/0.2709, allocations: 346.8 kB / 1.074 GB, free: 3.457 MB / 0.8262 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002038/0.2711, allocations: 84.83 kB / 1.074 GB, free: 3.371 MB / 0.8262 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0002227/0.2714, allocations: 113.3 kB / 1.074 GB, free: 3.25 MB / 0.8262 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0003923/0.2718, allocations: 196.1 kB / 1.075 GB, free: 3.051 MB / 0.8262 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.854e-06/0.2718, allocations: 0 / 1.075 GB, free: 3.051 MB / 0.8262 GB Notification: Performance of matching and sorting (n=20) (initialization): time 0.0004955/0.2723, allocations: 249.1 kB / 1.075 GB, free: 2.801 MB / 0.8262 GB Notification: Performance of prepare postOptimizeDAE: time 1.645e-05/0.2723, allocations: 12.06 kB / 1.075 GB, free: 2.789 MB / 0.8262 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.64e-06/0.2723, allocations: 3.984 kB / 1.075 GB, free: 2.785 MB / 0.8262 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.475e-05/0.2723, allocations: 0 / 1.075 GB, free: 2.785 MB / 0.8262 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001834/0.2725, allocations: 35.92 kB / 1.075 GB, free: 2.75 MB / 0.8262 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 8.516e-06/0.2726, allocations: 3.938 kB / 1.075 GB, free: 2.746 MB / 0.8262 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0001414/0.2727, allocations: 31.67 kB / 1.075 GB, free: 2.715 MB / 0.8262 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 1.511e-05/0.2727, allocations: 4 kB / 1.075 GB, free: 2.711 MB / 0.8262 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0002585/0.273, allocations: 200.1 kB / 1.075 GB, free: 2.512 MB / 0.8262 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0001728/0.2732, allocations: 107.4 kB / 1.075 GB, free: 2.395 MB / 0.8262 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0002882/0.2735, allocations: 164.2 kB / 1.075 GB, free: 2.227 MB / 0.8262 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 9.92e-07/0.2735, allocations: 0 / 1.075 GB, free: 2.227 MB / 0.8262 GB Notification: Performance of matching and sorting (n=20) (initialization_lambda0): time 0.0003932/0.2739, allocations: 227.4 kB / 1.076 GB, free: 2 MB / 0.8262 GB Notification: Performance of prepare postOptimizeDAE: time 7.073e-06/0.2739, allocations: 8.094 kB / 1.076 GB, free: 1.992 MB / 0.8262 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.523e-06/0.2739, allocations: 0 / 1.076 GB, free: 1.992 MB / 0.8262 GB Notification: Performance of postOpt tearingSystem (initialization): time 6.002e-06/0.2739, allocations: 4 kB / 1.076 GB, free: 1.988 MB / 0.8262 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001274/0.274, allocations: 20 kB / 1.076 GB, free: 1.969 MB / 0.8262 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 7.835e-06/0.2741, allocations: 11.92 kB / 1.076 GB, free: 1.957 MB / 0.8262 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0001221/0.2742, allocations: 19.78 kB / 1.076 GB, free: 1.938 MB / 0.8262 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 1.133e-05/0.2742, allocations: 4 kB / 1.076 GB, free: 1.934 MB / 0.8262 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 0.0001184/0.2743, allocations: 184.3 kB / 1.076 GB, free: 1.746 MB / 0.8262 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 6.29e-05/0.2744, allocations: 35.62 kB / 1.076 GB, free: 1.711 MB / 0.8262 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 8.318e-05/0.2745, allocations: 35.28 kB / 1.076 GB, free: 1.68 MB / 0.8262 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.194e-06/0.2745, allocations: 3.938 kB / 1.076 GB, free: 1.676 MB / 0.8262 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.6e-06/0.2745, allocations: 3.938 kB / 1.076 GB, free: 1.672 MB / 0.8262 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.34e-06/0.2745, allocations: 3.984 kB / 1.076 GB, free: 1.668 MB / 0.8262 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0004513/0.275, allocations: 409.3 kB / 1.076 GB, free: 1.219 MB / 0.8262 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.213e-06/0.275, allocations: 4 kB / 1.076 GB, free: 1.215 MB / 0.8262 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001798/0.2752, allocations: 31.92 kB / 1.076 GB, free: 1.184 MB / 0.8262 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.943e-06/0.2752, allocations: 0 / 1.076 GB, free: 1.184 MB / 0.8262 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.451e-05/0.2752, allocations: 0 / 1.076 GB, free: 1.184 MB / 0.8262 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 3.797e-06/0.2752, allocations: 7.938 kB / 1.076 GB, free: 1.176 MB / 0.8262 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.787e-06/0.2752, allocations: 7.938 kB / 1.076 GB, free: 1.168 MB / 0.8262 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0007223/0.2759, allocations: 429.1 kB / 1.077 GB, free: 0.7344 MB / 0.8262 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001243/0.2761, allocations: 132.7 kB / 1.077 GB, free: 0.5859 MB / 0.8262 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 4.087e-05/0.2761, allocations: 8 kB / 1.077 GB, free: 0.5781 MB / 0.8262 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001581/0.2763, allocations: 16.05 kB / 1.077 GB, free: 0.5625 MB / 0.8262 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 4.701e-05/0.2763, allocations: 11.92 kB / 1.077 GB, free: 0.5508 MB / 0.8262 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 1.306e-05/0.2764, allocations: 4 kB / 1.077 GB, free: 0.5469 MB / 0.8262 GB Notification: Performance of sorting global known variables: time 0.0002482/0.2766, allocations: 239 kB / 1.077 GB, free: 324 kB / 0.8262 GB Notification: Performance of sort global known variables: time 1.4e-07/0.2766, allocations: 0 / 1.077 GB, free: 324 kB / 0.8262 GB Notification: Performance of remove unused functions: time 0.0003991/0.277, allocations: 91.59 kB / 1.077 GB, free: 232 kB / 0.8262 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 0.00102/0.278, allocations: 0.96 MB / 1.078 GB, free: 15.24 MB / 0.8419 GB Notification: Performance of simCode: created initialization part: time 0.0006486/0.2787, allocations: 289.6 kB / 1.079 GB, free: 14.96 MB / 0.8419 GB Notification: Performance of simCode: created event and clocks part: time 1.953e-06/0.2787, allocations: 320 / 1.079 GB, free: 14.96 MB / 0.8419 GB Notification: Performance of simCode: created simulation system equations: time 0.0002089/0.2789, allocations: 103.9 kB / 1.079 GB, free: 14.86 MB / 0.8419 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0005845/0.2795, allocations: 83.97 kB / 1.079 GB, free: 14.78 MB / 0.8419 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.004005/0.2835, allocations: 2.948 MB / 1.082 GB, free: 11.74 MB / 0.8419 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0003883/0.2839, allocations: 0.7753 MB / 1.082 GB, free: 10.94 MB / 0.8419 GB Notification: Performance of simCode: alias equations: time 0.0001243/0.2841, allocations: 26.28 kB / 1.082 GB, free: 10.92 MB / 0.8419 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001636/0.2842, allocations: 99.41 kB / 1.082 GB, free: 10.82 MB / 0.8419 GB Notification: Performance of SimCode: time 2.81e-07/0.2843, allocations: 0 / 1.082 GB, free: 10.82 MB / 0.8419 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.03077/0.315, allocations: 6.566 MB / 1.089 GB, free: 4.363 MB / 0.8419 GB Notification: Performance of buildModelFMU: Generate platform static: time 8.597/8.912, allocations: 10.95 kB / 1.089 GB, free: 4.355 MB / 0.8419 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 400 --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