Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortWater.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 11.0.0-master/package.mo", uses=false) Using package Buildings with version 11.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.0.0-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: translateModel(Buildings.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortWater,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|vol.1..p|vol.2..p|vol.3..p|vol.1..T|vol.2..T|vol.3..T",fileNamePrefix="Buildings_latest_Buildings.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortWater") translateModel(Buildings.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortWater,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|vol.1..p|vol.2..p|vol.3..p|vol.1..T|vol.2..T|vol.3..T",fileNamePrefix="Buildings_latest_Buildings.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortWater") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0009192/0.0009192, allocations: 92.16 kB / 16.02 MB, free: 80 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001344/0.001344, allocations: 179.7 kB / 16.92 MB, free: 6.652 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.404/1.404, allocations: 223.3 MB / 241 MB, free: 5.281 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.0.0-master/package.mo): time 2.779/2.779, allocations: 462.6 MB / 0.737 GB, free: 15.52 MB / 0.5919 GB Notification: Performance of FrontEnd - loaded program: time 0.0003741/0.0003741, allocations: 9.938 kB / 0.9034 GB, free: 36.57 MB / 0.7169 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3255/0.3259, allocations: 159.6 MB / 1.059 GB, free: 4.918 MB / 0.8106 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortWater): time 0.02493/0.3508, allocations: 22.64 MB / 1.081 GB, free: 14.19 MB / 0.8419 GB Notification: Performance of NFInst.instExpressions: time 0.01056/0.3614, allocations: 6.799 MB / 1.088 GB, free: 7.375 MB / 0.8419 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001288/0.3628, allocations: 23.81 kB / 1.088 GB, free: 7.352 MB / 0.8419 GB Notification: Performance of NFTyping.typeComponents: time 0.00119/0.364, allocations: 266.5 kB / 1.088 GB, free: 7.09 MB / 0.8419 GB Notification: Performance of NFTyping.typeBindings: time 0.002907/0.3669, allocations: 0.836 MB / 1.089 GB, free: 6.25 MB / 0.8419 GB Notification: Performance of NFTyping.typeClassSections: time 0.002255/0.3692, allocations: 0.688 MB / 1.09 GB, free: 5.57 MB / 0.8419 GB Notification: Performance of NFFlatten.flatten: time 0.005759/0.375, allocations: 4.68 MB / 1.094 GB, free: 0.875 MB / 0.8419 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001768/0.3768, allocations: 1.066 MB / 1.095 GB, free: 15.79 MB / 0.8575 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002187/0.379, allocations: 0.9372 MB / 1.096 GB, free: 14.84 MB / 0.8575 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001763/0.3807, allocations: 0.8864 MB / 1.097 GB, free: 13.95 MB / 0.8575 GB Notification: Performance of NFPackage.collectConstants: time 0.0002675/0.381, allocations: 40 kB / 1.097 GB, free: 13.91 MB / 0.8575 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002029/0.3831, allocations: 0.7095 MB / 1.098 GB, free: 13.2 MB / 0.8575 GB Notification: Performance of NFScalarize.scalarize: time 0.0004327/0.3835, allocations: 223 kB / 1.098 GB, free: 12.98 MB / 0.8575 GB Notification: Performance of NFVerifyModel.verify: time 0.001168/0.3847, allocations: 0.569 MB / 1.099 GB, free: 12.41 MB / 0.8575 GB Notification: Performance of NFConvertDAE.convert: time 0.002124/0.3868, allocations: 1.45 MB / 1.1 GB, free: 10.95 MB / 0.8575 GB Notification: Performance of FrontEnd - DAE generated: time 5.5e-06/0.3868, allocations: 0 / 1.1 GB, free: 10.95 MB / 0.8575 GB Notification: Performance of FrontEnd: time 1.864e-06/0.3869, allocations: 4 kB / 1.1 GB, free: 10.95 MB / 0.8575 GB Notification: Performance of Transformations before backend: time 5.876e-05/0.3869, allocations: 0 / 1.1 GB, free: 10.95 MB / 0.8575 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 183 * Number of variables: 183 Notification: Performance of Generate backend data structure: time 0.002585/0.3895, allocations: 1.301 MB / 1.101 GB, free: 9.594 MB / 0.8575 GB Notification: Performance of prepare preOptimizeDAE: time 5.177e-05/0.3896, allocations: 15.97 kB / 1.101 GB, free: 9.578 MB / 0.8575 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.000528/0.3901, allocations: 135.4 kB / 1.102 GB, free: 9.445 MB / 0.8575 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002002/0.3921, allocations: 1.197 MB / 1.103 GB, free: 8.207 MB / 0.8575 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 5.003e-05/0.3922, allocations: 58 kB / 1.103 GB, free: 8.148 MB / 0.8575 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001323/0.3923, allocations: 79.91 kB / 1.103 GB, free: 8.07 MB / 0.8575 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001654/0.394, allocations: 1.033 MB / 1.104 GB, free: 6.992 MB / 0.8575 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.78e-05/0.394, allocations: 7.922 kB / 1.104 GB, free: 6.984 MB / 0.8575 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 9.229e-05/0.3941, allocations: 35.98 kB / 1.104 GB, free: 6.949 MB / 0.8575 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.959e-05/0.3942, allocations: 23.94 kB / 1.104 GB, free: 6.926 MB / 0.8575 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001314/0.3955, allocations: 0.7688 MB / 1.105 GB, free: 6.152 MB / 0.8575 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 0.00565/0.4011, allocations: 4.612 MB / 1.109 GB, free: 1.191 MB / 0.8575 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0005517/0.4017, allocations: 404.2 kB / 1.11 GB, free: 0.7891 MB / 0.8575 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0003479/0.4021, allocations: 258.9 kB / 1.11 GB, free: 0.5352 MB / 0.8575 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0003874/0.4025, allocations: 429.8 kB / 1.11 GB, free: 24 kB / 0.8575 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.435e-05/0.4025, allocations: 38.89 kB / 1.11 GB, free: 15.98 MB / 0.8731 GB Notification: Performance of pre-optimization done (n=40): time 3.105e-06/0.4026, allocations: 0 / 1.11 GB, free: 15.98 MB / 0.8731 GB Notification: Performance of matching and sorting (n=40): time 0.001969/0.4045, allocations: 0.8702 MB / 1.111 GB, free: 15.08 MB / 0.8731 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.678e-05/0.4046, allocations: 55.41 kB / 1.111 GB, free: 15.01 MB / 0.8731 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001343/0.4059, allocations: 0.9154 MB / 1.112 GB, free: 14.09 MB / 0.8731 GB Notification: Performance of collectPreVariables (initialization): time 7.262e-05/0.406, allocations: 37.7 kB / 1.112 GB, free: 14.05 MB / 0.8731 GB Notification: Performance of collectInitialEqns (initialization): time 0.0004503/0.4065, allocations: 0.4989 MB / 1.113 GB, free: 13.54 MB / 0.8731 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001699/0.4066, allocations: 145.9 kB / 1.113 GB, free: 13.39 MB / 0.8731 GB Notification: Performance of simplifyInitialFunctions (initialization): time 8.556e-05/0.4067, allocations: 57.69 kB / 1.113 GB, free: 13.33 MB / 0.8731 GB Notification: Performance of setup shared object (initialization): time 0.0001306/0.4069, allocations: 333.9 kB / 1.113 GB, free: 13 MB / 0.8731 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003427/0.4072, allocations: 221 kB / 1.113 GB, free: 12.79 MB / 0.8731 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004777/0.4077, allocations: 434.6 kB / 1.114 GB, free: 12.28 MB / 0.8731 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0008524/0.4086, allocations: 0.6707 MB / 1.114 GB, free: 11.53 MB / 0.8731 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.631e-06/0.4086, allocations: 8 kB / 1.114 GB, free: 11.52 MB / 0.8731 GB Notification: Performance of matching and sorting (n=70) (initialization): time 0.001519/0.4101, allocations: 0.8056 MB / 1.115 GB, free: 10.71 MB / 0.8731 GB Notification: Performance of prepare postOptimizeDAE: time 0.0001797/0.4103, allocations: 258 kB / 1.115 GB, free: 10.38 MB / 0.8731 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.379e-05/0.4103, allocations: 4 kB / 1.115 GB, free: 10.37 MB / 0.8731 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.000443/0.4108, allocations: 100.6 kB / 1.116 GB, free: 10.27 MB / 0.8731 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003759/0.4112, allocations: 115.8 kB / 1.116 GB, free: 10.16 MB / 0.8731 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0005212/0.4117, allocations: 0.6303 MB / 1.116 GB, free: 9.5 MB / 0.8731 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0008637/0.4126, allocations: 107.3 kB / 1.116 GB, free: 9.395 MB / 0.8731 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.223e-05/0.4127, allocations: 27.98 kB / 1.116 GB, free: 9.367 MB / 0.8731 GB Notification: Performance of prepare postOptimizeDAE: time 7.153e-06/0.4127, allocations: 4 kB / 1.116 GB, free: 9.363 MB / 0.8731 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.001105/0.4138, allocations: 0.6798 MB / 1.117 GB, free: 8.68 MB / 0.8731 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.022e-05/0.4138, allocations: 12.09 kB / 1.117 GB, free: 8.668 MB / 0.8731 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0001712/0.414, allocations: 64.75 kB / 1.117 GB, free: 8.602 MB / 0.8731 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003435/0.4143, allocations: 111.8 kB / 1.117 GB, free: 8.492 MB / 0.8731 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001818/0.4162, allocations: 1.716 MB / 1.119 GB, free: 6.629 MB / 0.8731 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0008319/0.417, allocations: 103 kB / 1.119 GB, free: 6.531 MB / 0.8731 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.708e-05/0.4171, allocations: 31.94 kB / 1.119 GB, free: 6.5 MB / 0.8731 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 25 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (64): * Single equations (assignments): 63 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * 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): 1 system {(1,6)} Notification: Performance of prepare postOptimizeDAE: time 0.0007512/0.4178, allocations: 488.7 kB / 1.119 GB, free: 6.012 MB / 0.8731 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002576/0.4181, allocations: 90.88 kB / 1.12 GB, free: 5.922 MB / 0.8731 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001183/0.4193, allocations: 0.6425 MB / 1.12 GB, free: 5.27 MB / 0.8731 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.04e-05/0.4193, allocations: 7.984 kB / 1.12 GB, free: 5.262 MB / 0.8731 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.575e-06/0.4193, allocations: 0 / 1.12 GB, free: 5.262 MB / 0.8731 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0009057/0.4202, allocations: 0.8166 MB / 1.121 GB, free: 4.355 MB / 0.8731 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 postOpt removeSimpleEquations (simulation): time 0.002873/0.4231, allocations: 1.685 MB / 1.123 GB, free: 2.586 MB / 0.8731 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.635e-06/0.4231, allocations: 4 kB / 1.123 GB, free: 2.582 MB / 0.8731 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003469/0.4235, allocations: 79.88 kB / 1.123 GB, free: 2.504 MB / 0.8731 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0001339/0.4236, allocations: 40.78 kB / 1.123 GB, free: 2.461 MB / 0.8731 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.197e-05/0.4237, allocations: 15.94 kB / 1.123 GB, free: 2.445 MB / 0.8731 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0004117/0.4241, allocations: 0.568 MB / 1.123 GB, free: 1.852 MB / 0.8731 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.32e-06/0.4241, allocations: 3.984 kB / 1.123 GB, free: 1.848 MB / 0.8731 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001328/0.4255, allocations: 0.9566 MB / 1.124 GB, free: 0.8594 MB / 0.8731 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0005058/0.426, allocations: 259.9 kB / 1.125 GB, free: 0.5859 MB / 0.8731 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001456/0.4261, allocations: 11.94 kB / 1.125 GB, free: 0.5742 MB / 0.8731 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0006908/0.4268, allocations: 81.3 kB / 1.125 GB, free: 0.5 MB / 0.8731 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 5.841e-05/0.4269, allocations: 23.91 kB / 1.125 GB, free: 488 kB / 0.8731 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.75e-05/0.427, allocations: 27.97 kB / 1.125 GB, free: 460 kB / 0.8731 GB Notification: Performance of sorting global known variables: time 0.0009299/0.4279, allocations: 0.6473 MB / 1.125 GB, free: 15.8 MB / 0.8887 GB Notification: Performance of sort global known variables: time 2.5e-07/0.4279, allocations: 4 kB / 1.125 GB, free: 15.8 MB / 0.8887 GB Notification: Performance of remove unused functions: time 0.002106/0.43, allocations: 0.565 MB / 1.126 GB, free: 15.23 MB / 0.8887 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * Number of states: 3 (vol[1].dynBal.U,vol[2].dynBal.U,vol[3].dynBal.U) * 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 (39): * Single equations (assignments): 36 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 2 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * 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): 1 system {(1,3)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0007996/0.4308, allocations: 281.7 kB / 1.126 GB, free: 14.95 MB / 0.8887 GB Notification: Performance of simCode: created initialization part: time 0.001832/0.4327, allocations: 1.004 MB / 1.127 GB, free: 13.94 MB / 0.8887 GB Notification: Performance of simCode: created event and clocks part: time 5.22e-06/0.4327, allocations: 7.875 kB / 1.127 GB, free: 13.93 MB / 0.8887 GB Notification: Performance of simCode: created simulation system equations: time 0.0004037/0.4331, allocations: 243.5 kB / 1.127 GB, free: 13.69 MB / 0.8887 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003133/0.4363, allocations: 0.5622 MB / 1.128 GB, free: 13.14 MB / 0.8887 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003803/0.4401, allocations: 2.465 MB / 1.13 GB, free: 10.63 MB / 0.8887 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.000863/0.441, allocations: 1.209 MB / 1.131 GB, free: 9.391 MB / 0.8887 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002483/0.4412, allocations: 83.3 kB / 1.132 GB, free: 9.309 MB / 0.8887 GB Notification: Performance of SimCode: time 7.42e-07/0.4412, allocations: 0 / 1.132 GB, free: 9.309 MB / 0.8887 GB Notification: Performance of Templates: time 0.03307/0.4743, allocations: 22.89 MB / 1.154 GB, free: 2.559 MB / 0.9044 GB make -j1 -f Buildings_latest_Buildings.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortWater.makefile (rm -f Buildings_latest_Buildings.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortWater.pipe ; mkfifo Buildings_latest_Buildings.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortWater.pipe ; head -c 1048576 < Buildings_latest_Buildings.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortWater.pipe >> ../files/Buildings_latest_Buildings.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortWater.sim & ./Buildings_latest_Buildings.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortWater -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS > Buildings_latest_Buildings.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortWater.pipe 2>&1) diffSimulationResults("Buildings_latest_Buildings.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortWater_res.mat","/mnt/ReferenceFiles/Buildings/csv/master/Buildings_Fluid_MixingVolumes_BaseClasses_Validation_MixingVolumeHeatPortWater.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_latest_Buildings.Fluid.MixingVolumes.BaseClasses.Validation.MixingVolumeHeatPortWater.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches