Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement.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 11.0.1-master/package.mo", uses=false) Using package Buildings with version 11.0.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.0.1-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.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement,tolerance=1e-06,outputFormat="mat",numberOfIntervals=17520,variableFilter="time|thermalZoneOneElement.TAir",fileNamePrefix="Buildings_latest_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement") translateModel(Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement,tolerance=1e-06,outputFormat="mat",numberOfIntervals=17520,variableFilter="time|thermalZoneOneElement.TAir",fileNamePrefix="Buildings_latest_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.005163/0.005163, allocations: 104.4 kB / 15.74 MB, free: 5.949 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001277/0.001277, allocations: 192.3 kB / 16.67 MB, free: 5.871 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.328/1.328, allocations: 222.9 MB / 240.3 MB, free: 15.1 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.0.1-master/package.mo): time 2.546/2.546, allocations: 461.9 MB / 0.7347 GB, free: 11.06 MB / 0.6075 GB Notification: Performance of FrontEnd - loaded program: time 0.001196/0.001196, allocations: 63.89 kB / 1.054 GB, free: 7.691 MB / 0.8262 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.7554/0.7566, allocations: 157.4 MB / 1.208 GB, free: 13.59 MB / 0.9356 GB Notification: Performance of NFInst.instantiate(Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement): time 0.167/0.9237, allocations: 162 MB / 1.366 GB, free: 10.95 MB / 1.092 GB Notification: Performance of NFInst.instExpressions: time 0.03322/0.9569, allocations: 26.95 MB / 1.392 GB, free: 15.92 MB / 1.123 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.00341/0.9604, allocations: 75.62 kB / 1.392 GB, free: 15.84 MB / 1.123 GB Notification: Performance of NFTyping.typeComponents: time 0.002689/0.9631, allocations: 1.037 MB / 1.393 GB, free: 14.8 MB / 1.123 GB Notification: Performance of NFTyping.typeBindings: time 0.005022/0.9682, allocations: 1.788 MB / 1.395 GB, free: 13.01 MB / 1.123 GB Notification: Performance of NFTyping.typeClassSections: time 0.004111/0.9723, allocations: 1.728 MB / 1.397 GB, free: 11.29 MB / 1.123 GB Notification: Performance of NFFlatten.flatten: time 0.006639/0.979, allocations: 5.3 MB / 1.402 GB, free: 5.973 MB / 1.123 GB Notification: Performance of NFFlatten.resolveConnections: time 0.005498/0.9845, allocations: 4.159 MB / 1.406 GB, free: 1.738 MB / 1.123 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003669/0.9882, allocations: 2.136 MB / 1.408 GB, free: 15.6 MB / 1.139 GB Notification: Performance of NFSimplifyModel.simplify: time 0.003441/0.9916, allocations: 2.526 MB / 1.411 GB, free: 13.06 MB / 1.139 GB Notification: Performance of NFPackage.collectConstants: time 0.000829/0.9925, allocations: 460 kB / 1.411 GB, free: 12.61 MB / 1.139 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002141/0.9946, allocations: 1.054 MB / 1.412 GB, free: 11.56 MB / 1.139 GB Notification: Performance of NFScalarize.scalarize: time 0.0009345/0.9956, allocations: 1.18 MB / 1.413 GB, free: 10.38 MB / 1.139 GB Notification: Performance of NFVerifyModel.verify: time 0.00221/0.9978, allocations: 2.127 MB / 1.415 GB, free: 8.238 MB / 1.139 GB Notification: Performance of NFConvertDAE.convert: time 0.00673/1.005, allocations: 5.976 MB / 1.421 GB, free: 2.246 MB / 1.139 GB Notification: Performance of FrontEnd - DAE generated: time 5.481e-06/1.005, allocations: 8 kB / 1.421 GB, free: 2.238 MB / 1.139 GB Notification: Performance of FrontEnd: time 1.413e-06/1.005, allocations: 0 / 1.421 GB, free: 2.238 MB / 1.139 GB Notification: Performance of Transformations before backend: time 0.0001139/1.005, allocations: 0 / 1.421 GB, free: 2.238 MB / 1.139 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 816 * Number of variables: 816 Notification: Performance of Generate backend data structure: time 0.009908/1.015, allocations: 4.637 MB / 1.426 GB, free: 13.51 MB / 1.154 GB Notification: Performance of prepare preOptimizeDAE: time 4.716e-05/1.015, allocations: 8.031 kB / 1.426 GB, free: 13.5 MB / 1.154 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01374/1.028, allocations: 2.772 MB / 1.428 GB, free: 10.72 MB / 1.154 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.00487/1.033, allocations: 2.313 MB / 1.431 GB, free: 8.332 MB / 1.154 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001881/1.034, allocations: 242.4 kB / 1.431 GB, free: 8.094 MB / 1.154 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0005786/1.034, allocations: 312 kB / 1.431 GB, free: 7.789 MB / 1.154 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01107/1.045, allocations: 5.158 MB / 1.436 GB, free: 2.551 MB / 1.154 GB Notification: Performance of preOpt findStateOrder (simulation): time 6.421e-05/1.045, allocations: 3.938 kB / 1.436 GB, free: 2.547 MB / 1.154 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0003441/1.046, allocations: 132 kB / 1.436 GB, free: 2.418 MB / 1.154 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.871e-05/1.046, allocations: 83.92 kB / 1.436 GB, free: 2.336 MB / 1.154 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01425/1.06, allocations: 6.295 MB / 1.442 GB, free: 12.03 MB / 1.17 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 0.02468/1.085, allocations: 14.79 MB / 1.457 GB, free: 12.62 MB / 1.186 GB Notification: Performance of preOpt comSubExp (simulation): time 0.01049/1.095, allocations: 4.705 MB / 1.462 GB, free: 7.902 MB / 1.186 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.005158/1.1, allocations: 2.444 MB / 1.464 GB, free: 5.445 MB / 1.186 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0008909/1.101, allocations: 0.6734 MB / 1.465 GB, free: 4.641 MB / 1.186 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.005578/1.107, allocations: 2.622 MB / 1.467 GB, free: 1.977 MB / 1.186 GB Notification: Performance of pre-optimization done (n=278): time 6.562e-06/1.107, allocations: 96 / 1.467 GB, free: 1.977 MB / 1.186 GB Notification: Performance of matching and sorting (n=278): time 0.01823/1.125, allocations: 7.4 MB / 1.474 GB, free: 10.46 MB / 1.201 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001076/1.125, allocations: 210.1 kB / 1.475 GB, free: 10.21 MB / 1.201 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003095/1.128, allocations: 2.442 MB / 1.477 GB, free: 7.738 MB / 1.201 GB Notification: Performance of collectPreVariables (initialization): time 0.0004506/1.129, allocations: 81.69 kB / 1.477 GB, free: 7.652 MB / 1.201 GB Notification: Performance of collectInitialEqns (initialization): time 0.001099/1.13, allocations: 1.33 MB / 1.478 GB, free: 6.305 MB / 1.201 GB Notification: Performance of collectInitialBindings (initialization): time 0.0009437/1.131, allocations: 0.9049 MB / 1.479 GB, free: 5.387 MB / 1.201 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0009269/1.132, allocations: 0.5049 MB / 1.48 GB, free: 4.875 MB / 1.201 GB Notification: Performance of setup shared object (initialization): time 8.232e-05/1.132, allocations: 305.1 kB / 1.48 GB, free: 4.574 MB / 1.201 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.004742/1.137, allocations: 2.034 MB / 1.482 GB, free: 2.535 MB / 1.201 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.005079/1.142, allocations: 2.337 MB / 1.484 GB, free: 128 kB / 1.201 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.009821/1.152, allocations: 4.277 MB / 1.488 GB, free: 11.76 MB / 1.217 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 7.774e-06/1.152, allocations: 0 / 1.488 GB, free: 11.76 MB / 1.217 GB Notification: Performance of matching and sorting (n=322) (initialization): time 0.012/1.164, allocations: 5.001 MB / 1.493 GB, free: 6.711 MB / 1.217 GB Notification: Performance of prepare postOptimizeDAE: time 2.549e-05/1.164, allocations: 8 kB / 1.493 GB, free: 6.703 MB / 1.217 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.33e-05/1.164, allocations: 4 kB / 1.493 GB, free: 6.699 MB / 1.217 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0006248/1.164, allocations: 246.7 kB / 1.494 GB, free: 6.457 MB / 1.217 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004176/1.169, allocations: 0.8112 MB / 1.494 GB, free: 5.645 MB / 1.217 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.004365/1.173, allocations: 3.367 MB / 1.498 GB, free: 2.141 MB / 1.217 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004224/1.177, allocations: 0.5674 MB / 1.498 GB, free: 1.57 MB / 1.217 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0005807/1.178, allocations: 111.9 kB / 1.498 GB, free: 1.461 MB / 1.217 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 17 * Number of states: 0 () * Number of discrete variables: 34 ($PRE.intGai.nextTimeEvent,$whenCondition1,weaDat.conTim.canRepeatWeatherFile,weaDat.conTimMin.canRepeatWeatherFile,intGai.nextTimeEventScaled,$PRE.intGai.nextTimeEventScaled,intGai.nextTimeEvent,HDirTil[2].incAng.decAng.tNext,$PRE.HDirTil[2].incAng.decAng.tNext,HDirTil[1].incAng.decAng.tNext,$PRE.HDirTil[1].incAng.decAng.tNext,HDifTil[2].incAng.decAng.tNext,$PRE.HDifTil[2].incAng.decAng.tNext,HDifTil[1].incAng.decAng.tNext,$PRE.HDifTil[1].incAng.decAng.tNext,weaDat.decAng.tNext,$PRE.weaDat.decAng.tNext,weaDat.eqnTim.tNext,$PRE.weaDat.eqnTim.tNext,weaDat.conTim.tNext,$PRE.weaDat.conTim.tNext,weaDat.conTimMin.tNext,$PRE.weaDat.conTimMin.tNext,weaDat.locTim.tNext,$PRE.weaDat.locTim.tNext,$whenCondition2,$whenCondition3,$whenCondition4,$whenCondition5,$whenCondition6,$whenCondition7,$whenCondition8,$whenCondition9,$whenCondition10) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (300): * Single equations (assignments): 299 * 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): 1 system {(2,21,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.002146/1.18, allocations: 0.9422 MB / 1.499 GB, free: 0.5078 MB / 1.217 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0008571/1.181, allocations: 272.6 kB / 1.499 GB, free: 244 kB / 1.217 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01323/1.194, allocations: 5.63 MB / 1.505 GB, free: 10.55 MB / 1.232 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.219e-05/1.194, allocations: 28 kB / 1.505 GB, free: 10.52 MB / 1.232 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 9.638e-06/1.194, allocations: 8 kB / 1.505 GB, free: 10.51 MB / 1.232 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.874e-05/1.194, allocations: 19.94 kB / 1.505 GB, free: 10.49 MB / 1.232 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.004751/1.199, allocations: 3.684 MB / 1.509 GB, free: 6.75 MB / 1.232 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 8.536e-06/1.199, allocations: 0 / 1.509 GB, free: 6.75 MB / 1.232 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003804/1.203, allocations: 0.7371 MB / 1.509 GB, free: 6.012 MB / 1.232 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0007908/1.203, allocations: 271.6 kB / 1.51 GB, free: 5.738 MB / 1.232 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0002731/1.204, allocations: 79.92 kB / 1.51 GB, free: 5.66 MB / 1.232 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.004833/1.209, allocations: 5.236 MB / 1.515 GB, free: 128 kB / 1.232 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.553e-06/1.209, allocations: 0 / 1.515 GB, free: 128 kB / 1.232 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01762/1.226, allocations: 8.022 MB / 1.523 GB, free: 8.008 MB / 1.248 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002133/1.228, allocations: 0.8288 MB / 1.523 GB, free: 7.156 MB / 1.248 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0005453/1.229, allocations: 75.83 kB / 1.524 GB, free: 7.082 MB / 1.248 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003183/1.232, allocations: 423.3 kB / 1.524 GB, free: 6.668 MB / 1.248 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0004521/1.233, allocations: 202 kB / 1.524 GB, free: 6.469 MB / 1.248 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002615/1.233, allocations: 103.9 kB / 1.524 GB, free: 6.367 MB / 1.248 GB Notification: Performance of sorting global known variables: time 0.002597/1.236, allocations: 1.777 MB / 1.526 GB, free: 4.578 MB / 1.248 GB Notification: Performance of sort global known variables: time 2.91e-07/1.236, allocations: 0 / 1.526 GB, free: 4.578 MB / 1.248 GB Notification: Performance of remove unused functions: time 0.003126/1.239, allocations: 1.064 MB / 1.527 GB, free: 3.512 MB / 1.248 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 3 (thermalZoneOneElement.volAir.dynBal.U,thermalZoneOneElement.volAir.dynBal.m,thermalZoneOneElement.extWallRC.thermCapExt[1].T) * Number of discrete variables: 21 ($whenCondition10,$whenCondition9,$whenCondition8,$whenCondition7,$whenCondition6,$whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,weaDat.locTim.tNext,weaDat.conTimMin.tNext,weaDat.conTim.tNext,weaDat.eqnTim.tNext,weaDat.decAng.tNext,HDifTil[1].incAng.decAng.tNext,HDifTil[2].incAng.decAng.tNext,HDirTil[1].incAng.decAng.tNext,HDirTil[2].incAng.decAng.tNext,intGai.nextTimeEvent,intGai.nextTimeEventScaled) * Number of discrete states: 11 (intGai.nextTimeEventScaled,intGai.nextTimeEvent,HDirTil[2].incAng.decAng.tNext,HDirTil[1].incAng.decAng.tNext,HDifTil[2].incAng.decAng.tNext,HDifTil[1].incAng.decAng.tNext,weaDat.decAng.tNext,weaDat.eqnTim.tNext,weaDat.conTim.tNext,weaDat.conTimMin.tNext,weaDat.locTim.tNext) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (276): * Single equations (assignments): 262 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 11 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(2,16,100.0%), (1,3,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,2)} Notification: Performance of Backend phase and start with SimCode phase: time 0.002615/1.241, allocations: 1.054 MB / 1.528 GB, free: 2.797 MB / 1.248 GB Notification: Performance of simCode: created initialization part: time 0.01195/1.253, allocations: 4.905 MB / 1.533 GB, free: 13.84 MB / 1.264 GB Notification: Performance of simCode: created event and clocks part: time 4.628e-06/1.253, allocations: 0 / 1.533 GB, free: 13.84 MB / 1.264 GB Notification: Performance of simCode: created simulation system equations: time 0.006209/1.259, allocations: 2.781 MB / 1.536 GB, free: 11.03 MB / 1.264 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003283/1.263, allocations: 0.7053 MB / 1.536 GB, free: 10.36 MB / 1.264 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01403/1.277, allocations: 7.92 MB / 1.544 GB, free: 2.402 MB / 1.264 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001922/1.279, allocations: 2.453 MB / 1.546 GB, free: 15.92 MB / 1.279 GB Notification: Performance of simCode: alias equations: time 0.003713/1.283, allocations: 1.135 MB / 1.547 GB, free: 14.78 MB / 1.279 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001155/1.284, allocations: 287.2 kB / 1.548 GB, free: 14.5 MB / 1.279 GB Notification: Performance of SimCode: time 6.31e-07/1.284, allocations: 0 / 1.548 GB, free: 14.5 MB / 1.279 GB Notification: Performance of Templates: time 0.6294/1.913, allocations: 49.83 MB / 1.596 GB, free: 325.5 MB / 1.279 GB make -j1 -f Buildings_latest_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement.makefile (rm -f Buildings_latest_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement.pipe ; mkfifo Buildings_latest_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement.pipe ; head -c 1048576 < Buildings_latest_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement.pipe >> ../files/Buildings_latest_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement.sim & ./Buildings_latest_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS > Buildings_latest_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement.pipe 2>&1) diffSimulationResults("Buildings_latest_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement_res.mat","/mnt/ReferenceFiles/Buildings/csv/master/Buildings_ThermalZones_ReducedOrder_Examples_SimpleRoomOneElement.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_latest_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomOneElement.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches