Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_11_Buildings.Fluid.Chillers.Examples.Carnot_y.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: translateModel(Buildings.Fluid.Chillers.Examples.Carnot_y,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|chi.sta_a1.T|chi.sta_b1.T|chi.sta_a2.T|chi.sta_b2.T|chi.QEva_flow|chi.QCon_flow|chi.P|chi.dp1|chi.dp2|chi.COP_nominal|chi.COP",fileNamePrefix="Buildings_11_Buildings.Fluid.Chillers.Examples.Carnot_y") translateModel(Buildings.Fluid.Chillers.Examples.Carnot_y,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|chi.sta_a1.T|chi.sta_b1.T|chi.sta_a2.T|chi.sta_b2.T|chi.QEva_flow|chi.QCon_flow|chi.P|chi.dp1|chi.dp2|chi.COP_nominal|chi.COP",fileNamePrefix="Buildings_11_Buildings.Fluid.Chillers.Examples.Carnot_y") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.00158/0.00158, allocations: 110.8 kB / 15.99 MB, free: 6.355 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001532/0.001532, allocations: 199.3 kB / 16.91 MB, free: 6.188 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.355/1.355, allocations: 222.9 MB / 240.6 MB, free: 15.46 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.0-maint.11.x/package.mo): time 2.575/2.575, allocations: 469.8 MB / 0.7427 GB, free: 3.625 MB / 0.6075 GB Notification: Performance of FrontEnd - loaded program: time 0.00184/0.00184, allocations: 63.7 kB / 0.9087 GB, free: 14.23 MB / 0.6856 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3236/0.3255, allocations: 159.1 MB / 1.064 GB, free: 15.11 MB / 0.8419 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Chillers.Examples.Carnot_y): time 0.5614/0.8869, allocations: 74.53 MB / 1.137 GB, free: 7.141 MB / 0.8731 GB Notification: Performance of NFInst.instExpressions: time 0.02098/0.908, allocations: 12.65 MB / 1.149 GB, free: 14.04 MB / 0.8887 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.00337/0.9114, allocations: 60.19 kB / 1.149 GB, free: 14.02 MB / 0.8887 GB Notification: Performance of NFTyping.typeComponents: time 0.002589/0.914, allocations: 0.7237 MB / 1.15 GB, free: 13.59 MB / 0.8887 GB Notification: Performance of NFTyping.typeBindings: time 0.00805/0.9221, allocations: 2.295 MB / 1.152 GB, free: 12.22 MB / 0.8887 GB Notification: Performance of NFTyping.typeClassSections: time 0.004336/0.9265, allocations: 1.285 MB / 1.154 GB, free: 11.46 MB / 0.8887 GB Notification: Performance of NFFlatten.flatten: time 0.007856/0.9343, allocations: 4.403 MB / 1.158 GB, free: 9.254 MB / 0.8887 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002737/0.9371, allocations: 1.434 MB / 1.159 GB, free: 8.547 MB / 0.8887 GB Notification: Performance of NFEvalConstants.evaluate: time 0.004689/0.9418, allocations: 1.634 MB / 1.161 GB, free: 7.734 MB / 0.8887 GB Notification: Performance of NFSimplifyModel.simplify: time 0.002605/0.9444, allocations: 1.237 MB / 1.162 GB, free: 7.164 MB / 0.8887 GB Notification: Performance of NFPackage.collectConstants: time 0.0004477/0.9449, allocations: 161.7 kB / 1.162 GB, free: 7.164 MB / 0.8887 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0042/0.9491, allocations: 1.421 MB / 1.164 GB, free: 6.633 MB / 0.8887 GB Notification: Performance of NFScalarize.scalarize: time 0.0006611/0.9498, allocations: 395.8 kB / 1.164 GB, free: 6.387 MB / 0.8887 GB Notification: Performance of NFVerifyModel.verify: time 0.001805/0.9516, allocations: 0.9071 MB / 1.165 GB, free: 5.816 MB / 0.8887 GB Notification: Performance of NFConvertDAE.convert: time 0.003498/0.9551, allocations: 2.227 MB / 1.167 GB, free: 5.078 MB / 0.8887 GB Notification: Performance of FrontEnd - DAE generated: time 5.26e-06/0.9551, allocations: 3.938 kB / 1.167 GB, free: 5.074 MB / 0.8887 GB Notification: Performance of FrontEnd: time 2.204e-06/0.9551, allocations: 2.484 kB / 1.167 GB, free: 5.074 MB / 0.8887 GB Notification: Performance of Transformations before backend: time 3.905e-05/0.9552, allocations: 5.094 kB / 1.167 GB, free: 5.07 MB / 0.8887 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 240 * Number of variables: 240 Notification: Performance of Generate backend data structure: time 0.004599/0.9598, allocations: 2.086 MB / 1.169 GB, free: 3.523 MB / 0.8887 GB Notification: Performance of prepare preOptimizeDAE: time 4.999e-05/0.9599, allocations: 9.188 kB / 1.169 GB, free: 3.523 MB / 0.8887 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001019/0.9609, allocations: 225.5 kB / 1.169 GB, free: 3.418 MB / 0.8887 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002908/0.9638, allocations: 1.493 MB / 1.171 GB, free: 2.223 MB / 0.8887 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 7.183e-05/0.9639, allocations: 75.81 kB / 1.171 GB, free: 2.191 MB / 0.8887 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001593/0.9641, allocations: 100.5 kB / 1.171 GB, free: 2.16 MB / 0.8887 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002213/0.9663, allocations: 1.1 MB / 1.172 GB, free: 1.477 MB / 0.8887 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.294e-05/0.9663, allocations: 8.938 kB / 1.172 GB, free: 1.469 MB / 0.8887 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001014/0.9664, allocations: 41.78 kB / 1.172 GB, free: 1.438 MB / 0.8887 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.959e-05/0.9665, allocations: 28.84 kB / 1.172 GB, free: 1.434 MB / 0.8887 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.00198/0.9685, allocations: 0.8858 MB / 1.173 GB, free: 0.9883 MB / 0.8887 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 0.007361/0.9758, allocations: 4.897 MB / 1.178 GB, free: 12.77 MB / 0.9044 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001436/0.9773, allocations: 0.6227 MB / 1.178 GB, free: 12.46 MB / 0.9044 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0007266/0.978, allocations: 345.6 kB / 1.179 GB, free: 12.3 MB / 0.9044 GB Notification: Performance of preOpt evalFunc (simulation): time 0.000801/0.9789, allocations: 0.8356 MB / 1.179 GB, free: 11.32 MB / 0.9044 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.789e-05/0.9789, allocations: 39.19 kB / 1.179 GB, free: 11.28 MB / 0.9044 GB Notification: Performance of pre-optimization done (n=61): time 3.286e-06/0.9789, allocations: 0 / 1.179 GB, free: 11.28 MB / 0.9044 GB Notification: Performance of matching and sorting (n=61): time 0.007404/0.9863, allocations: 1.682 MB / 1.181 GB, free: 10.39 MB / 0.9044 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.949e-05/0.9864, allocations: 62.22 kB / 1.181 GB, free: 10.32 MB / 0.9044 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001972/0.9884, allocations: 1.209 MB / 1.182 GB, free: 9.648 MB / 0.9044 GB Notification: Performance of collectPreVariables (initialization): time 0.0001451/0.9885, allocations: 43.17 kB / 1.182 GB, free: 9.605 MB / 0.9044 GB Notification: Performance of collectInitialEqns (initialization): time 0.0006066/0.9892, allocations: 0.6028 MB / 1.183 GB, free: 9.07 MB / 0.9044 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002604/0.9894, allocations: 220 kB / 1.183 GB, free: 8.879 MB / 0.9044 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.000262/0.9897, allocations: 155.9 kB / 1.183 GB, free: 8.785 MB / 0.9044 GB Notification: Performance of setup shared object (initialization): time 0.0001531/0.9899, allocations: 332.7 kB / 1.184 GB, free: 8.461 MB / 0.9044 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0006625/0.9905, allocations: 291.2 kB / 1.184 GB, free: 8.312 MB / 0.9044 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0008986/0.9914, allocations: 494.8 kB / 1.184 GB, free: 7.93 MB / 0.9044 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001466/0.9929, allocations: 0.7127 MB / 1.185 GB, free: 7.48 MB / 0.9044 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.74e-06/0.9929, allocations: 1.219 kB / 1.185 GB, free: 7.48 MB / 0.9044 GB Notification: Performance of matching and sorting (n=88) (initialization): time 0.004803/0.9977, allocations: 1.275 MB / 1.186 GB, free: 6.836 MB / 0.9044 GB Notification: Performance of prepare postOptimizeDAE: time 2.478e-05/0.9978, allocations: 6.031 kB / 1.186 GB, free: 6.836 MB / 0.9044 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.078e-05/0.9978, allocations: 4.125 kB / 1.186 GB, free: 6.836 MB / 0.9044 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.000607/0.9984, allocations: 137.7 kB / 1.187 GB, free: 6.77 MB / 0.9044 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006384/0.9991, allocations: 165.6 kB / 1.187 GB, free: 6.723 MB / 0.9044 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0008649/0.9999, allocations: 0.6866 MB / 1.187 GB, free: 6.113 MB / 0.9044 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001461/1.001, allocations: 154.4 kB / 1.187 GB, free: 6.023 MB / 0.9044 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 8.813e-05/1.002, allocations: 38.92 kB / 1.188 GB, free: 6.008 MB / 0.9044 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.00122/1.003, allocations: 0.5515 MB / 1.188 GB, free: 5.668 MB / 0.9044 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0008813/1.004, allocations: 493.5 kB / 1.189 GB, free: 5.289 MB / 0.9044 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001403/1.005, allocations: 0.701 MB / 1.189 GB, free: 4.84 MB / 0.9044 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 5.089e-06/1.005, allocations: 2.25 kB / 1.189 GB, free: 4.84 MB / 0.9044 GB Notification: Performance of matching and sorting (n=88) (initialization_lambda0): time 0.004862/1.01, allocations: 1.266 MB / 1.19 GB, free: 4.203 MB / 0.9044 GB Notification: Performance of prepare postOptimizeDAE: time 1.577e-05/1.01, allocations: 6.875 kB / 1.19 GB, free: 4.203 MB / 0.9044 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.166e-06/1.01, allocations: 4.125 kB / 1.19 GB, free: 4.203 MB / 0.9044 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0005182/1.011, allocations: 136.4 kB / 1.191 GB, free: 4.137 MB / 0.9044 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006079/1.011, allocations: 158 kB / 1.191 GB, free: 4.098 MB / 0.9044 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0008605/1.012, allocations: 0.6982 MB / 1.191 GB, free: 3.477 MB / 0.9044 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00149/1.013, allocations: 135.6 kB / 1.192 GB, free: 3.402 MB / 0.9044 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.999e-05/1.014, allocations: 34.58 kB / 1.192 GB, free: 3.391 MB / 0.9044 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 16 * 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 (79): * Single equations (assignments): 78 * 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 {(1,9)} Notification: Performance of prepare postOptimizeDAE: time 0.0003195/1.014, allocations: 226.4 kB / 1.192 GB, free: 3.176 MB / 0.9044 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0003426/1.014, allocations: 134.1 kB / 1.192 GB, free: 3.105 MB / 0.9044 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.004676/1.019, allocations: 1.274 MB / 1.193 GB, free: 2.402 MB / 0.9044 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.555e-05/1.019, allocations: 5.562 kB / 1.193 GB, free: 2.402 MB / 0.9044 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 7.855e-06/1.019, allocations: 0 / 1.193 GB, free: 2.402 MB / 0.9044 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.004002/1.023, allocations: 1.097 MB / 1.194 GB, free: 1.777 MB / 0.9044 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.007085/1.03, allocations: 2.596 MB / 1.197 GB, free: 15.98 MB / 0.92 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 8.446e-06/1.03, allocations: 4.062 kB / 1.197 GB, free: 15.98 MB / 0.92 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0004899/1.031, allocations: 119.7 kB / 1.197 GB, free: 15.95 MB / 0.92 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0005043/1.031, allocations: 128.3 kB / 1.197 GB, free: 15.89 MB / 0.92 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.858e-05/1.031, allocations: 16 kB / 1.197 GB, free: 15.88 MB / 0.92 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.005152/1.036, allocations: 2.597 MB / 1.2 GB, free: 13.36 MB / 0.92 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.61e-06/1.036, allocations: 4 kB / 1.2 GB, free: 13.36 MB / 0.92 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.005469/1.042, allocations: 1.699 MB / 1.201 GB, free: 11.59 MB / 0.92 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0009619/1.043, allocations: 307.2 kB / 1.202 GB, free: 11.27 MB / 0.92 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002315/1.043, allocations: 19.98 kB / 1.202 GB, free: 11.25 MB / 0.92 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0009017/1.044, allocations: 79.83 kB / 1.202 GB, free: 11.18 MB / 0.92 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000143/1.044, allocations: 64.23 kB / 1.202 GB, free: 11.11 MB / 0.92 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 7.698e-05/1.044, allocations: 39.98 kB / 1.202 GB, free: 11.07 MB / 0.92 GB Notification: Performance of sorting global known variables: time 0.00131/1.046, allocations: 0.866 MB / 1.203 GB, free: 10.21 MB / 0.92 GB Notification: Performance of sort global known variables: time 1.21e-07/1.046, allocations: 0 / 1.203 GB, free: 10.21 MB / 0.92 GB Notification: Performance of remove unused functions: time 0.002195/1.048, allocations: 0.7135 MB / 1.203 GB, free: 9.492 MB / 0.92 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 15 * Number of states: 2 (chi.con.vol.dynBal.U,chi.eva.vol.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 (56): * Single equations (assignments): 51 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 4 * 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 {(1,9)} Notification: Performance of Backend phase and start with SimCode phase: time 0.001047/1.049, allocations: 451 kB / 1.204 GB, free: 9.055 MB / 0.92 GB Notification: Performance of simCode: created initialization part: time 0.002937/1.052, allocations: 1.156 MB / 1.205 GB, free: 7.895 MB / 0.92 GB Notification: Performance of simCode: created event and clocks part: time 7.353e-06/1.052, allocations: 4 kB / 1.205 GB, free: 7.891 MB / 0.92 GB Notification: Performance of simCode: created simulation system equations: time 0.001532/1.053, allocations: 0.5526 MB / 1.205 GB, free: 7.328 MB / 0.92 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003696/1.057, allocations: 0.8096 MB / 1.206 GB, free: 6.539 MB / 0.92 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.004428/1.062, allocations: 2.781 MB / 1.209 GB, free: 3.684 MB / 0.92 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0009112/1.062, allocations: 1.172 MB / 1.21 GB, free: 2.48 MB / 0.92 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0003438/1.063, allocations: 107.4 kB / 1.21 GB, free: 2.375 MB / 0.92 GB Notification: Performance of SimCode: time 9.52e-07/1.063, allocations: 0 / 1.21 GB, free: 2.375 MB / 0.92 GB Notification: Performance of Templates: time 0.04472/1.108, allocations: 30.87 MB / 1.24 GB, free: 3.691 MB / 0.9512 GB make -j1 -f Buildings_11_Buildings.Fluid.Chillers.Examples.Carnot_y.makefile (rm -f Buildings_11_Buildings.Fluid.Chillers.Examples.Carnot_y.pipe ; mkfifo Buildings_11_Buildings.Fluid.Chillers.Examples.Carnot_y.pipe ; head -c 1048576 < Buildings_11_Buildings.Fluid.Chillers.Examples.Carnot_y.pipe >> ../files/Buildings_11_Buildings.Fluid.Chillers.Examples.Carnot_y.sim & ./Buildings_11_Buildings.Fluid.Chillers.Examples.Carnot_y -abortSlowSimulation -alarm=400 -emit_protected -lv LOG_STATS > Buildings_11_Buildings.Fluid.Chillers.Examples.Carnot_y.pipe 2>&1) diffSimulationResults("Buildings_11_Buildings.Fluid.Chillers.Examples.Carnot_y_res.mat","/mnt/ReferenceFiles/Buildings/csv/maint_11.x/Buildings_Fluid_Chillers_Examples_Carnot_y.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_11_Buildings.Fluid.Chillers.Examples.Carnot_y.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches