Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_9_Buildings.Fluid.Examples.Performance.Example2.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 9.1.3-maint.9.1.x/package.mo", uses=false) Using package Buildings with version 9.1.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 9.1.3-maint.9.1.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: translateModel(Buildings.Fluid.Examples.Performance.Example2,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|pump_dp.m_flow",fileNamePrefix="Buildings_9_Buildings.Fluid.Examples.Performance.Example2") translateModel(Buildings.Fluid.Examples.Performance.Example2,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|pump_dp.m_flow",fileNamePrefix="Buildings_9_Buildings.Fluid.Examples.Performance.Example2") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.005539/0.005539, allocations: 104.3 kB / 15.74 MB, free: 6.492 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001116/0.001116, allocations: 190 kB / 16.67 MB, free: 6.379 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.414/1.414, allocations: 222.9 MB / 240.3 MB, free: 4.305 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 9.1.3-maint.9.1.x/package.mo): time 2.332/2.332, allocations: 390.2 MB / 0.6648 GB, free: 192 kB / 0.5137 GB Notification: Performance of FrontEnd - loaded program: time 0.001203/0.001203, allocations: 62.39 kB / 0.9508 GB, free: 5.609 MB / 0.7169 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2951/0.2963, allocations: 140.4 MB / 1.088 GB, free: 1.504 MB / 0.8419 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Examples.Performance.Example2): time 0.02785/0.3242, allocations: 29.64 MB / 1.117 GB, free: 3.754 MB / 0.8731 GB Notification: Performance of NFInst.instExpressions: time 0.01369/0.3379, allocations: 9.913 MB / 1.127 GB, free: 9.812 MB / 0.8887 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001626/0.3396, allocations: 51.69 kB / 1.127 GB, free: 9.762 MB / 0.8887 GB Notification: Performance of NFTyping.typeComponents: time 0.002056/0.3417, allocations: 0.6797 MB / 1.127 GB, free: 9.078 MB / 0.8887 GB Notification: Performance of NFTyping.typeBindings: time 0.003725/0.3454, allocations: 1.468 MB / 1.129 GB, free: 7.605 MB / 0.8887 GB Notification: Performance of NFTyping.typeClassSections: time 0.003299/0.3488, allocations: 1.378 MB / 1.13 GB, free: 6.234 MB / 0.8887 GB Notification: Performance of NFFlatten.flatten: time 0.004476/0.3532, allocations: 3.827 MB / 1.134 GB, free: 2.398 MB / 0.8887 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001785/0.355, allocations: 1.369 MB / 1.135 GB, free: 0.9961 MB / 0.8887 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003059/0.3581, allocations: 1.522 MB / 1.137 GB, free: 15.47 MB / 0.9044 GB Notification: Performance of NFSimplifyModel.simplify: time 0.00139/0.3595, allocations: 1.038 MB / 1.138 GB, free: 14.43 MB / 0.9044 GB Notification: Performance of NFPackage.collectConstants: time 0.0002093/0.3597, allocations: 116 kB / 1.138 GB, free: 14.32 MB / 0.9044 GB Notification: Performance of NFFlatten.collectFunctions: time 0.00226/0.362, allocations: 1.131 MB / 1.139 GB, free: 13.19 MB / 0.9044 GB Notification: Performance of NFScalarize.scalarize: time 0.0004003/0.3624, allocations: 402.6 kB / 1.139 GB, free: 12.79 MB / 0.9044 GB Notification: Performance of NFVerifyModel.verify: time 0.0008526/0.3633, allocations: 0.7851 MB / 1.14 GB, free: 12 MB / 0.9044 GB Notification: Performance of NFConvertDAE.convert: time 0.003122/0.3664, allocations: 2.45 MB / 1.142 GB, free: 9.547 MB / 0.9044 GB Notification: Performance of FrontEnd - DAE generated: time 6.482e-06/0.3664, allocations: 0 / 1.142 GB, free: 9.547 MB / 0.9044 GB Notification: Performance of FrontEnd: time 1.603e-06/0.3664, allocations: 3.938 kB / 1.142 GB, free: 9.543 MB / 0.9044 GB Notification: Performance of Transformations before backend: time 1.875e-05/0.3665, allocations: 0 / 1.142 GB, free: 9.543 MB / 0.9044 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 188 * Number of variables: 188 Notification: Performance of Generate backend data structure: time 0.003082/0.3696, allocations: 1.938 MB / 1.144 GB, free: 7.547 MB / 0.9044 GB Notification: Performance of prepare preOptimizeDAE: time 3.486e-05/0.3696, allocations: 8.031 kB / 1.144 GB, free: 7.539 MB / 0.9044 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001737/0.3713, allocations: 342.8 kB / 1.145 GB, free: 7.203 MB / 0.9044 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002609/0.374, allocations: 1.382 MB / 1.146 GB, free: 5.766 MB / 0.9044 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 5.323e-05/0.374, allocations: 66 kB / 1.146 GB, free: 5.703 MB / 0.9044 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001275/0.3742, allocations: 80 kB / 1.146 GB, free: 5.625 MB / 0.9044 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001679/0.3758, allocations: 1.001 MB / 1.147 GB, free: 4.566 MB / 0.9044 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.202e-05/0.3759, allocations: 3.938 kB / 1.147 GB, free: 4.562 MB / 0.9044 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 8.47e-05/0.376, allocations: 39.97 kB / 1.147 GB, free: 4.523 MB / 0.9044 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.609e-05/0.376, allocations: 20 kB / 1.147 GB, free: 4.504 MB / 0.9044 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001617/0.3776, allocations: 0.7493 MB / 1.148 GB, free: 3.754 MB / 0.9044 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 0.005635/0.3833, allocations: 4.886 MB / 1.153 GB, free: 14.53 MB / 0.92 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001338/0.3846, allocations: 0.5971 MB / 1.153 GB, free: 13.93 MB / 0.92 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0006844/0.3853, allocations: 334.7 kB / 1.154 GB, free: 13.6 MB / 0.92 GB Notification: Performance of preOpt evalFunc (simulation): time 0.002211/0.3875, allocations: 1.611 MB / 1.155 GB, free: 11.84 MB / 0.92 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0007678/0.3883, allocations: 355 kB / 1.155 GB, free: 11.48 MB / 0.92 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.0002447/0.3886, allocations: 47.53 kB / 1.155 GB, free: 11.43 MB / 0.92 GB Notification: Performance of pre-optimization done (n=43): time 2.284e-06/0.3886, allocations: 4 kB / 1.155 GB, free: 11.43 MB / 0.92 GB Notification: Performance of matching and sorting (n=43): time 0.003283/0.3919, allocations: 1.227 MB / 1.157 GB, free: 10.17 MB / 0.92 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.938e-05/0.3919, allocations: 59.41 kB / 1.157 GB, free: 10.1 MB / 0.92 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001534/0.3935, allocations: 1.282 MB / 1.158 GB, free: 8.801 MB / 0.92 GB Notification: Performance of collectPreVariables (initialization): time 5.628e-05/0.3935, allocations: 37.7 kB / 1.158 GB, free: 8.758 MB / 0.92 GB Notification: Performance of collectInitialEqns (initialization): time 0.0005273/0.3941, allocations: 0.6489 MB / 1.159 GB, free: 8.102 MB / 0.92 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001258/0.3942, allocations: 145.9 kB / 1.159 GB, free: 7.957 MB / 0.92 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.000221/0.3944, allocations: 162.1 kB / 1.159 GB, free: 7.793 MB / 0.92 GB Notification: Performance of setup shared object (initialization): time 0.0001049/0.3945, allocations: 334 kB / 1.159 GB, free: 7.461 MB / 0.92 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0006465/0.3952, allocations: 303.5 kB / 1.16 GB, free: 7.16 MB / 0.92 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.000834/0.396, allocations: 0.6022 MB / 1.16 GB, free: 6.41 MB / 0.92 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001445/0.3975, allocations: 0.8565 MB / 1.161 GB, free: 5.445 MB / 0.92 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.632e-06/0.3975, allocations: 4 kB / 1.161 GB, free: 5.441 MB / 0.92 GB Notification: Performance of matching and sorting (n=84) (initialization): time 0.002265/0.3998, allocations: 1.129 MB / 1.162 GB, free: 4.293 MB / 0.92 GB Notification: Performance of prepare postOptimizeDAE: time 3.83e-05/0.3998, allocations: 33.7 kB / 1.162 GB, free: 4.254 MB / 0.92 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.605e-05/0.3999, allocations: 8 kB / 1.162 GB, free: 4.246 MB / 0.92 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0006344/0.4005, allocations: 205 kB / 1.162 GB, free: 4.043 MB / 0.92 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005882/0.4011, allocations: 143.8 kB / 1.162 GB, free: 3.902 MB / 0.92 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0006965/0.4018, allocations: 0.7668 MB / 1.163 GB, free: 3.109 MB / 0.92 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0007396/0.4026, allocations: 52.62 kB / 1.163 GB, free: 3.059 MB / 0.92 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.677e-05/0.4026, allocations: 39.98 kB / 1.163 GB, free: 3.02 MB / 0.92 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0009538/0.4036, allocations: 0.5834 MB / 1.164 GB, free: 2.43 MB / 0.92 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0007467/0.4043, allocations: 0.5787 MB / 1.164 GB, free: 1.699 MB / 0.92 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001196/0.4056, allocations: 0.7824 MB / 1.165 GB, free: 0.8086 MB / 0.92 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 4.658e-06/0.4056, allocations: 4 kB / 1.165 GB, free: 0.8047 MB / 0.92 GB Notification: Performance of matching and sorting (n=84) (initialization_lambda0): time 0.001871/0.4074, allocations: 1.093 MB / 1.166 GB, free: 15.68 MB / 0.9356 GB Notification: Performance of prepare postOptimizeDAE: time 3.562e-05/0.4075, allocations: 37.2 kB / 1.166 GB, free: 15.64 MB / 0.9356 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.355e-06/0.4075, allocations: 16.06 kB / 1.166 GB, free: 15.62 MB / 0.9356 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0001963/0.4077, allocations: 112.8 kB / 1.166 GB, free: 15.51 MB / 0.9356 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005282/0.4082, allocations: 135.8 kB / 1.167 GB, free: 15.38 MB / 0.9356 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002108/0.4104, allocations: 2.352 MB / 1.169 GB, free: 12.87 MB / 0.9356 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0007246/0.4111, allocations: 56.62 kB / 1.169 GB, free: 12.82 MB / 0.9356 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.734e-05/0.4112, allocations: 35.98 kB / 1.169 GB, free: 12.78 MB / 0.9356 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 34 * Number of states: 0 () * Number of discrete variables: 7 (pulse.count,$PRE.pulse.count,pulse.T_start,$PRE.pulse.T_start,$whenCondition1,nRes.y,from_dp.y) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (71): * Single equations (assignments): 68 * Array equations: 1 * Algorithm blocks: 1 * 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 {(5,7)} Notification: Performance of prepare postOptimizeDAE: time 0.0002341/0.4114, allocations: 240.1 kB / 1.169 GB, free: 12.54 MB / 0.9356 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001642/0.4116, allocations: 134.3 kB / 1.169 GB, free: 12.41 MB / 0.9356 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001964/0.4136, allocations: 0.9041 MB / 1.17 GB, free: 11.48 MB / 0.9356 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.317e-05/0.4136, allocations: 8 kB / 1.17 GB, free: 11.47 MB / 0.9356 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.854e-06/0.4136, allocations: 0 / 1.17 GB, free: 11.47 MB / 0.9356 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.001494/0.4151, allocations: 0.9193 MB / 1.171 GB, free: 10.48 MB / 0.9356 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.00306/0.4182, allocations: 1.849 MB / 1.173 GB, free: 8.562 MB / 0.9356 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.298e-06/0.4182, allocations: 0 / 1.173 GB, free: 8.562 MB / 0.9356 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0004499/0.4186, allocations: 83.86 kB / 1.173 GB, free: 8.48 MB / 0.9356 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0002703/0.4189, allocations: 128.6 kB / 1.173 GB, free: 8.352 MB / 0.9356 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.951e-05/0.419, allocations: 19.98 kB / 1.173 GB, free: 8.332 MB / 0.9356 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0005692/0.4195, allocations: 0.7474 MB / 1.174 GB, free: 7.559 MB / 0.9356 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 6.663e-06/0.4196, allocations: 3.984 kB / 1.174 GB, free: 7.555 MB / 0.9356 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002289/0.4219, allocations: 1.252 MB / 1.175 GB, free: 6.273 MB / 0.9356 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0004166/0.4223, allocations: 251.5 kB / 1.175 GB, free: 6.008 MB / 0.9356 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.000142/0.4224, allocations: 15.98 kB / 1.175 GB, free: 5.992 MB / 0.9356 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0005905/0.423, allocations: 35.97 kB / 1.175 GB, free: 5.957 MB / 0.9356 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 9.271e-05/0.4231, allocations: 40.33 kB / 1.175 GB, free: 5.918 MB / 0.9356 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.069e-05/0.4232, allocations: 28.03 kB / 1.175 GB, free: 5.891 MB / 0.9356 GB Notification: Performance of sorting global known variables: time 0.001111/0.4243, allocations: 0.8819 MB / 1.176 GB, free: 5.008 MB / 0.9356 GB Notification: Performance of sort global known variables: time 2.3e-07/0.4243, allocations: 0 / 1.176 GB, free: 5.008 MB / 0.9356 GB Notification: Performance of remove unused functions: time 0.001653/0.426, allocations: 0.655 MB / 1.177 GB, free: 4.352 MB / 0.9356 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 3 * Number of states: 1 (pump_dp.vol.dynBal.U) * Number of discrete variables: 3 ($whenCondition1,pulse.T_start,pulse.count) * Number of discrete states: 1 (pulse.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (38): * Single equations (assignments): 32 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 3 * When equations: 2 * 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 {(5,7)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0007751/0.4268, allocations: 381.4 kB / 1.177 GB, free: 3.977 MB / 0.9356 GB Notification: Performance of simCode: created initialization part: time 0.002839/0.4296, allocations: 1.393 MB / 1.179 GB, free: 2.547 MB / 0.9356 GB Notification: Performance of simCode: created event and clocks part: time 3.286e-06/0.4296, allocations: 1 kB / 1.179 GB, free: 2.547 MB / 0.9356 GB Notification: Performance of simCode: created simulation system equations: time 0.0008162/0.4304, allocations: 350.4 kB / 1.179 GB, free: 2.207 MB / 0.9356 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002392/0.4328, allocations: 0.5997 MB / 1.18 GB, free: 1.621 MB / 0.9356 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003486/0.4363, allocations: 2.243 MB / 1.182 GB, free: 15.34 MB / 0.9512 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0007681/0.4371, allocations: 1.271 MB / 1.183 GB, free: 14.04 MB / 0.9512 GB Notification: Performance of simCode: alias equations: time 0.001028/0.4382, allocations: 318.5 kB / 1.183 GB, free: 13.73 MB / 0.9512 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002228/0.4384, allocations: 103.4 kB / 1.183 GB, free: 13.62 MB / 0.9512 GB Notification: Performance of SimCode: time 2.074e-06/0.4384, allocations: 0 / 1.183 GB, free: 13.62 MB / 0.9512 GB Notification: Performance of Templates: time 0.04167/0.4801, allocations: 26.35 MB / 1.209 GB, free: 3.605 MB / 0.9669 GB make -j1 -f Buildings_9_Buildings.Fluid.Examples.Performance.Example2.makefile (rm -f Buildings_9_Buildings.Fluid.Examples.Performance.Example2.pipe ; mkfifo Buildings_9_Buildings.Fluid.Examples.Performance.Example2.pipe ; head -c 1048576 < Buildings_9_Buildings.Fluid.Examples.Performance.Example2.pipe >> ../files/Buildings_9_Buildings.Fluid.Examples.Performance.Example2.sim & ./Buildings_9_Buildings.Fluid.Examples.Performance.Example2 -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS > Buildings_9_Buildings.Fluid.Examples.Performance.Example2.pipe 2>&1) diffSimulationResults("Buildings_9_Buildings.Fluid.Examples.Performance.Example2_res.mat","/mnt/ReferenceFiles/Buildings/csv/maint_9.1.x/Buildings_Fluid_Examples_Performance_Example2.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_9_Buildings.Fluid.Examples.Performance.Example2.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches