Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8.0.0_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomFourElements.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.0/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo", uses=false) Using package ModelicaServices with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo) Using package Modelica with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo) Using package Complex with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo) Using package Buildings with version 8.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.0/package.mo) Running command: translateModel(Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomFourElements,tolerance=1e-06,outputFormat="empty",numberOfIntervals=17520,variableFilter="",fileNamePrefix="Buildings_8.0.0_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomFourElements") translateModel(Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomFourElements,tolerance=1e-06,outputFormat="empty",numberOfIntervals=17520,variableFilter="",fileNamePrefix="Buildings_8.0.0_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomFourElements") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.0/package.mo): time 1.614/1.614, allocations: 287.5 MB / 302.6 MB, free: 8.18 MB / 234.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.000922/0.000922, allocations: 186.8 kB / 371.2 MB, free: 10.75 MB / 298.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.357/1.357, allocations: 205.4 MB / 0.6299 GB, free: 10.57 MB / 458.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.0007862/0.0007862, allocations: 100.4 kB / 0.7432 GB, free: 6.559 MB / 0.5573 GB Notification: Performance of FrontEnd - loaded program: time 0.0006156/0.0006157, allocations: 10.2 kB / 0.8661 GB, free: 140.8 MB / 0.6198 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1964/0.197, allocations: 115.3 MB / 0.9787 GB, free: 28.2 MB / 0.6198 GB Notification: Performance of NFInst.instantiate(Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomFourElements): time 0.5246/0.7217, allocations: 147.8 MB / 1.123 GB, free: 0.6836 MB / 0.6823 GB Notification: Performance of NFInst.instExpressions: time 0.03163/0.7534, allocations: 25.21 MB / 1.148 GB, free: 10.42 MB / 0.698 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.003577/0.757, allocations: 75.84 kB / 1.148 GB, free: 10.39 MB / 0.698 GB Notification: Performance of NFTyping.typeComponents: time 0.002116/0.7592, allocations: 0.9478 MB / 1.149 GB, free: 10.14 MB / 0.698 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.0/BoundaryConditions/WeatherData/BaseClasses/getHeaderElementTMY3.mo:2:1-105:25:writable] Warning: Pure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getHeaderElementTMY3‘ contains a call to impure function ‘Modelica.Utilities.Streams.readLine‘. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.0/BoundaryConditions/WeatherData/BaseClasses/getLongitudeTMY3.mo:2:1-48:21:writable] Warning: Pure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getLongitudeTMY3‘ contains a call to impure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getHeaderElementTMY3‘. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.0/BoundaryConditions/WeatherData/BaseClasses/getLatitudeTMY3.mo:2:1-48:20:writable] Warning: Pure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getLatitudeTMY3‘ contains a call to impure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getHeaderElementTMY3‘. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.0/BoundaryConditions/WeatherData/BaseClasses/getTimeZoneTMY3.mo:2:1-47:20:writable] Warning: Pure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getTimeZoneTMY3‘ contains a call to impure function ‘Buildings.BoundaryConditions.WeatherData.BaseClasses.getHeaderElementTMY3‘. Notification: Performance of NFTyping.typeBindings: time 0.005601/0.7648, allocations: 1.577 MB / 1.15 GB, free: 9.422 MB / 0.698 GB Notification: Performance of NFTyping.typeClassSections: time 0.00605/0.7708, allocations: 1.357 MB / 1.151 GB, free: 8.891 MB / 0.698 GB Notification: Performance of NFFlatten.flatten: time 0.01221/0.7831, allocations: 5.518 MB / 1.157 GB, free: 6.656 MB / 0.698 GB Notification: Performance of NFFlatten.resolveConnections: time 0.008672/0.7918, allocations: 3.847 MB / 1.161 GB, free: 4.352 MB / 0.698 GB Notification: Performance of NFEvalConstants.evaluate: time 0.004569/0.7964, allocations: 1.539 MB / 1.162 GB, free: 3.566 MB / 0.698 GB Notification: Performance of NFSimplifyModel.simplify: time 0.005526/0.802, allocations: 2.116 MB / 1.164 GB, free: 2.336 MB / 0.698 GB Notification: Performance of NFPackage.collectConstants: time 0.001082/0.8031, allocations: 138.8 kB / 1.164 GB, free: 2.336 MB / 0.698 GB Notification: Performance of NFFlatten.collectFunctions: time 0.003098/0.8062, allocations: 0.5701 MB / 1.165 GB, free: 2.137 MB / 0.698 GB Notification: Performance of NFScalarize.scalarize: time 0.001329/0.8076, allocations: 0.849 MB / 1.166 GB, free: 1.555 MB / 0.698 GB Notification: Performance of NFVerifyModel.verify: time 0.001717/0.8093, allocations: 0.7427 MB / 1.166 GB, free: 1.094 MB / 0.698 GB Notification: Performance of NFConvertDAE.convert: time 0.007852/0.8172, allocations: 5 MB / 1.171 GB, free: 13.53 MB / 0.7136 GB Notification: Performance of FrontEnd - DAE generated: time 4.919e-06/0.8172, allocations: 0 / 1.171 GB, free: 13.53 MB / 0.7136 GB Notification: Performance of FrontEnd: time 1.783e-06/0.8172, allocations: 3 kB / 1.171 GB, free: 13.53 MB / 0.7136 GB Notification: Performance of Transformations before backend: time 0.0002304/0.8175, allocations: 0 / 1.171 GB, free: 13.53 MB / 0.7136 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 940 * Number of variables: 940 Notification: Performance of Generate backend data structure: time 0.01405/0.8315, allocations: 4.264 MB / 1.175 GB, free: 10.64 MB / 0.7136 GB Notification: Performance of prepare preOptimizeDAE: time 4.467e-05/0.8316, allocations: 8.656 kB / 1.175 GB, free: 10.64 MB / 0.7136 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01833/0.8499, allocations: 2.758 MB / 1.178 GB, free: 9.363 MB / 0.7136 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.007507/0.8575, allocations: 2.503 MB / 1.181 GB, free: 7.59 MB / 0.7136 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003148/0.8578, allocations: 271.6 kB / 1.181 GB, free: 7.469 MB / 0.7136 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001324/0.8592, allocations: 365.2 kB / 1.181 GB, free: 7.348 MB / 0.7136 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01894/0.8782, allocations: 5.568 MB / 1.187 GB, free: 4.16 MB / 0.7136 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0001145/0.8783, allocations: 7.094 kB / 1.187 GB, free: 4.156 MB / 0.7136 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0006152/0.8789, allocations: 146.5 kB / 1.187 GB, free: 4.043 MB / 0.7136 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 8.26e-05/0.879, allocations: 89.84 kB / 1.187 GB, free: 4.043 MB / 0.7136 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0187/0.8978, allocations: 6.662 MB / 1.193 GB, free: 15.16 MB / 0.7292 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 0.03641/0.9342, allocations: 17.14 MB / 1.21 GB, free: 13.25 MB / 0.7448 GB Notification: Performance of preOpt comSubExp (simulation): time 0.01055/0.9448, allocations: 4.485 MB / 1.215 GB, free: 8.758 MB / 0.7448 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.006107/0.9509, allocations: 2.993 MB / 1.217 GB, free: 5.758 MB / 0.7448 GB Notification: Performance of preOpt evalFunc (simulation): time 0.001053/0.952, allocations: 0.6738 MB / 1.218 GB, free: 4.953 MB / 0.7448 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.006255/0.9583, allocations: 2.612 MB / 1.221 GB, free: 2.305 MB / 0.7448 GB Notification: Performance of pre-optimization done (n=313): time 7.544e-06/0.9584, allocations: 0 / 1.221 GB, free: 2.305 MB / 0.7448 GB Notification: Performance of matching and sorting (n=313): time 0.0266/0.985, allocations: 9.483 MB / 1.23 GB, free: 8.688 MB / 0.7605 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001364/0.9851, allocations: 218.4 kB / 1.23 GB, free: 8.43 MB / 0.7605 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.005067/0.9902, allocations: 2.613 MB / 1.233 GB, free: 5.801 MB / 0.7605 GB Notification: Performance of collectPreVariables (initialization): time 0.000782/0.991, allocations: 81.7 kB / 1.233 GB, free: 5.715 MB / 0.7605 GB Notification: Performance of collectInitialEqns (initialization): time 0.00154/0.9926, allocations: 1.526 MB / 1.234 GB, free: 4.172 MB / 0.7605 GB Notification: Performance of collectInitialBindings (initialization): time 0.001577/0.9942, allocations: 1.039 MB / 1.235 GB, free: 3.117 MB / 0.7605 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004985/0.9947, allocations: 56 kB / 1.235 GB, free: 3.062 MB / 0.7605 GB Notification: Performance of setup shared object (initialization): time 0.0003189/0.995, allocations: 415.9 kB / 1.236 GB, free: 2.652 MB / 0.7605 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.005123/1, allocations: 2.09 MB / 1.238 GB, free: 0.5586 MB / 0.7605 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.005627/1.006, allocations: 2.435 MB / 1.24 GB, free: 14.05 MB / 0.7761 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01109/1.017, allocations: 4.517 MB / 1.245 GB, free: 9.449 MB / 0.7761 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.822e-05/1.017, allocations: 3.938 kB / 1.245 GB, free: 9.445 MB / 0.7761 GB Notification: Performance of matching and sorting (n=353) (initialization): time 0.01545/1.032, allocations: 5.604 MB / 1.25 GB, free: 3.797 MB / 0.7761 GB Notification: Performance of prepare postOptimizeDAE: time 3.355e-05/1.033, allocations: 8 kB / 1.25 GB, free: 3.789 MB / 0.7761 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.927e-05/1.033, allocations: 8.344 kB / 1.25 GB, free: 3.781 MB / 0.7761 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.002028/1.035, allocations: 0.8161 MB / 1.251 GB, free: 2.961 MB / 0.7761 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00441/1.039, allocations: 0.7722 MB / 1.252 GB, free: 2.188 MB / 0.7761 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01139/1.05, allocations: 6.978 MB / 1.258 GB, free: 11.07 MB / 0.7917 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005106/1.056, allocations: 0.5538 MB / 1.259 GB, free: 10.51 MB / 0.7917 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001012/1.057, allocations: 123.9 kB / 1.259 GB, free: 10.39 MB / 0.7917 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 17 * Number of states: 0 () * Number of discrete variables: 13 ($whenCondition1,$PRE.intGai.nextTimeEvent,$whenCondition3,$whenCondition2,$PRE.weaDat.conTimMin.tNext,weaDat.conTimMin.tNext,$PRE.weaDat.conTim.tNext,weaDat.conTim.tNext,intGai.nextTimeEvent,$PRE.intGai.nextTimeEventScaled,intGai.nextTimeEventScaled,weaDat.conTimMin.canRepeatWeatherFile,weaDat.conTim.canRepeatWeatherFile) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (289): * Single equations (assignments): 288 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 1 {(5,100.0%) 60} * Non-linear torn systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.003964/1.061, allocations: 1.012 MB / 1.26 GB, free: 9.367 MB / 0.7917 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001419/1.062, allocations: 300.2 kB / 1.26 GB, free: 9.07 MB / 0.7917 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01816/1.08, allocations: 6.173 MB / 1.266 GB, free: 2.832 MB / 0.7917 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.586e-05/1.08, allocations: 35.94 kB / 1.266 GB, free: 2.797 MB / 0.7917 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.613e-05/1.08, allocations: 8 kB / 1.266 GB, free: 2.789 MB / 0.7917 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 8.548e-05/1.08, allocations: 19.94 kB / 1.266 GB, free: 2.77 MB / 0.7917 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.02428/1.105, allocations: 10.46 MB / 1.277 GB, free: 8.184 MB / 0.8073 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.356e-05/1.105, allocations: 0 / 1.277 GB, free: 8.184 MB / 0.8073 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003794/1.109, allocations: 0.7331 MB / 1.277 GB, free: 7.449 MB / 0.8073 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.00191/1.111, allocations: 0.738 MB / 1.278 GB, free: 6.695 MB / 0.8073 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0004516/1.111, allocations: 87.88 kB / 1.278 GB, free: 6.609 MB / 0.8073 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.01164/1.123, allocations: 9.784 MB / 1.288 GB, free: 12.39 MB / 0.823 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.355e-06/1.123, allocations: 0 / 1.288 GB, free: 12.39 MB / 0.823 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.02027/1.143, allocations: 8.754 MB / 1.296 GB, free: 3.555 MB / 0.823 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002473/1.145, allocations: 0.9258 MB / 1.297 GB, free: 2.605 MB / 0.823 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0009942/1.147, allocations: 63.98 kB / 1.297 GB, free: 2.543 MB / 0.823 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003562/1.15, allocations: 399.3 kB / 1.298 GB, free: 2.152 MB / 0.823 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000633/1.151, allocations: 210.3 kB / 1.298 GB, free: 1.945 MB / 0.823 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0004063/1.151, allocations: 107.9 kB / 1.298 GB, free: 1.84 MB / 0.823 GB Notification: Performance of sorting global known variables: time 0.003573/1.155, allocations: 1.892 MB / 1.3 GB, free: 15.94 MB / 0.8386 GB Notification: Performance of sort global known variables: time 1.673e-06/1.155, allocations: 4 kB / 1.3 GB, free: 15.94 MB / 0.8386 GB Notification: Performance of remove unused functions: time 0.004114/1.159, allocations: 1.2 MB / 1.301 GB, free: 14.73 MB / 0.8386 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 6 (thermalZoneFourElements.volAir.dynBal.U,thermalZoneFourElements.volAir.dynBal.m,thermalZoneFourElements.extWallRC.thermCapExt[1].T,thermalZoneFourElements.intWallRC.thermCapInt[1].T,thermalZoneFourElements.floorRC.thermCapExt[1].T,thermalZoneFourElements.roofRC.thermCapExt[1].T) * Number of discrete variables: 7 ($whenCondition3,$whenCondition2,$whenCondition1,weaDat.conTimMin.tNext,weaDat.conTim.tNext,intGai.nextTimeEvent,intGai.nextTimeEventScaled) * Number of discrete states: 4 (intGai.nextTimeEvent,intGai.nextTimeEventScaled,weaDat.conTimMin.tNext,weaDat.conTim.tNext) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (267): * Single equations (assignments): 259 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 4 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 4 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 3 {(5,100.0%) 49,(1,100.0%) 3,(1,100.0%) 3} * Non-linear torn systems: 1 {1 2} Notification: Performance of Backend phase and start with SimCode phase: time 0.002333/1.161, allocations: 0.9922 MB / 1.302 GB, free: 14.07 MB / 0.8386 GB Notification: Performance of simCode: created initialization part: time 0.01191/1.173, allocations: 5.31 MB / 1.307 GB, free: 8.727 MB / 0.8386 GB Notification: Performance of simCode: created event and clocks part: time 1.079e-05/1.173, allocations: 3.938 kB / 1.307 GB, free: 8.723 MB / 0.8386 GB Notification: Performance of simCode: created simulation system equations: time 0.007045/1.18, allocations: 3.219 MB / 1.31 GB, free: 5.461 MB / 0.8386 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.004616/1.185, allocations: 0.694 MB / 1.311 GB, free: 4.77 MB / 0.8386 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01851/1.203, allocations: 10.32 MB / 1.321 GB, free: 10.42 MB / 0.8542 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.003046/1.207, allocations: 2.679 MB / 1.324 GB, free: 7.711 MB / 0.8542 GB Notification: Performance of simCode: alias equations: time 0.0051/1.212, allocations: 1.153 MB / 1.325 GB, free: 6.555 MB / 0.8542 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001363/1.213, allocations: 275.3 kB / 1.325 GB, free: 6.285 MB / 0.8542 GB Notification: Performance of SimCode: time 7.42e-07/1.213, allocations: 0 / 1.325 GB, free: 6.285 MB / 0.8542 GB Notification: Performance of Templates: time 0.08005/1.293, allocations: 49.61 MB / 1.373 GB, free: 4.941 MB / 0.9011 GB make -j1 -f Buildings_8.0.0_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomFourElements.makefile (rm -f Buildings_8.0.0_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomFourElements.pipe ; mkfifo Buildings_8.0.0_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomFourElements.pipe ; head -c 1048576 < Buildings_8.0.0_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomFourElements.pipe >> ../files/Buildings_8.0.0_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomFourElements.sim & ./Buildings_8.0.0_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomFourElements -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_8.0.0_Buildings.ThermalZones.ReducedOrder.Examples.SimpleRoomFourElements.pipe 2>&1)