Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomTwoElements.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/IBPSA 4.0.0-master/package.mo", uses=false) Using package IBPSA with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-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: "" <> buildModelFMU(IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomTwoElements,fileNamePrefix="IBPSA_latest_IBPSA_ThermalZones_ReducedOrder_Examples_SimpleRoomTwoElements",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomTwoElements,fileNamePrefix="IBPSA_latest_IBPSA_ThermalZones_ReducedOrder_Examples_SimpleRoomTwoElements",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001543/0.001543, allocations: 96.42 kB / 15.68 MB, free: 488 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.002129/0.002129, allocations: 175.5 kB / 16.56 MB, free: 6.391 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 2.542/2.542, allocations: 223.2 MB / 240.5 MB, free: 5.449 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 1.245/1.245, allocations: 113.7 MB / 405.3 MB, free: 4.707 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.0005219/0.000522, allocations: 8 kB / 493 MB, free: 8.617 MB / 350.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.242/0.2426, allocations: 77.11 MB / 0.5567 GB, free: 11.72 MB / 430.1 MB Notification: Performance of NFInst.instantiate(IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomTwoElements): time 0.8434/1.086, allocations: 136.2 MB / 0.6897 GB, free: 1.398 MB / 0.4981 GB Notification: Performance of NFInst.instExpressions: time 0.04927/1.135, allocations: 22.91 MB / 0.7121 GB, free: 10.43 MB / 0.5294 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.005511/1.141, allocations: 67.56 kB / 0.7122 GB, free: 10.37 MB / 0.5294 GB Notification: Performance of NFTyping.typeComponents: time 0.004926/1.146, allocations: 0.9606 MB / 0.7131 GB, free: 9.402 MB / 0.5294 GB Notification: Performance of NFTyping.typeBindings: time 0.01495/1.161, allocations: 2.206 MB / 0.7152 GB, free: 7.199 MB / 0.5294 GB Notification: Performance of NFTyping.typeClassSections: time 0.009318/1.17, allocations: 1.7 MB / 0.7169 GB, free: 5.535 MB / 0.5294 GB Notification: Performance of NFFlatten.flatten: time 0.01039/1.181, allocations: 3.072 MB / 0.7199 GB, free: 2.461 MB / 0.5294 GB Notification: Performance of NFFlatten.resolveConnections: time 0.008704/1.19, allocations: 3.034 MB / 0.7229 GB, free: 15.39 MB / 0.545 GB Notification: Performance of NFEvalConstants.evaluate: time 0.00498/1.195, allocations: 1.389 MB / 0.7242 GB, free: 14 MB / 0.545 GB Notification: Performance of NFSimplifyModel.simplify: time 0.005389/1.2, allocations: 1.723 MB / 0.7259 GB, free: 12.27 MB / 0.545 GB Notification: Performance of NFPackage.collectConstants: time 0.001612/1.202, allocations: 120 kB / 0.726 GB, free: 12.15 MB / 0.545 GB Notification: Performance of NFFlatten.collectFunctions: time 0.004406/1.206, allocations: 0.5853 MB / 0.7266 GB, free: 11.56 MB / 0.545 GB Notification: Performance of NFScalarize.scalarize: time 0.002375/1.209, allocations: 0.7471 MB / 0.7273 GB, free: 10.81 MB / 0.545 GB Notification: Performance of NFVerifyModel.verify: time 0.002617/1.211, allocations: 0.6637 MB / 0.728 GB, free: 10.14 MB / 0.545 GB Notification: Performance of NFConvertDAE.convert: time 0.01157/1.223, allocations: 4.598 MB / 0.7325 GB, free: 5.531 MB / 0.545 GB Notification: Performance of FrontEnd - DAE generated: time 1.005e-05/1.223, allocations: 4 kB / 0.7325 GB, free: 5.527 MB / 0.545 GB Notification: Performance of FrontEnd: time 6.141e-06/1.223, allocations: 0 / 0.7325 GB, free: 5.527 MB / 0.545 GB Notification: Performance of Transformations before backend: time 0.0003978/1.223, allocations: 0 / 0.7325 GB, free: 5.527 MB / 0.545 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 851 * Number of variables: 851 Notification: Performance of Generate backend data structure: time 0.01722/1.241, allocations: 4.088 MB / 0.7365 GB, free: 1.352 MB / 0.545 GB Notification: Performance of prepare preOptimizeDAE: time 7.621e-05/1.241, allocations: 12.03 kB / 0.7365 GB, free: 1.34 MB / 0.545 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.003498/1.244, allocations: 471.8 kB / 0.7369 GB, free: 0.8672 MB / 0.545 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.02195/1.266, allocations: 2.909 MB / 0.7398 GB, free: 13.95 MB / 0.5606 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.01171/1.278, allocations: 2.246 MB / 0.742 GB, free: 11.63 MB / 0.5606 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0005372/1.279, allocations: 250.7 kB / 0.7422 GB, free: 11.38 MB / 0.5606 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.002451/1.281, allocations: 324 kB / 0.7425 GB, free: 11.07 MB / 0.5606 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.02764/1.309, allocations: 5.323 MB / 0.7477 GB, free: 5.668 MB / 0.5606 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0001587/1.309, allocations: 7.938 kB / 0.7477 GB, free: 5.66 MB / 0.5606 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.00155/1.311, allocations: 140 kB / 0.7478 GB, free: 5.523 MB / 0.5606 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001425/1.311, allocations: 80 kB / 0.7479 GB, free: 5.445 MB / 0.5606 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.02873/1.34, allocations: 6.53 MB / 0.7543 GB, free: 14.9 MB / 0.5762 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 0.0545/1.394, allocations: 15.05 MB / 0.769 GB, free: 15.34 MB / 0.5919 GB Notification: Performance of preOpt comSubExp (simulation): time 0.01984/1.414, allocations: 4.929 MB / 0.7738 GB, free: 10.4 MB / 0.5919 GB Notification: Performance of preOpt evalFunc (simulation): time 0.001601/1.416, allocations: 0.6737 MB / 0.7745 GB, free: 9.602 MB / 0.5919 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.01162/1.427, allocations: 2.699 MB / 0.7771 GB, free: 6.863 MB / 0.5919 GB Notification: Performance of pre-optimization done (n=291): time 1.473e-05/1.428, allocations: 0 / 0.7771 GB, free: 6.863 MB / 0.5919 GB Notification: Performance of matching and sorting (n=291): time 0.03413/1.462, allocations: 7.981 MB / 0.7849 GB, free: 14.76 MB / 0.6075 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0002723/1.462, allocations: 218.2 kB / 0.7851 GB, free: 14.5 MB / 0.6075 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.008273/1.47, allocations: 2.52 MB / 0.7876 GB, free: 11.96 MB / 0.6075 GB Notification: Performance of collectPreVariables (initialization): time 0.001532/1.472, allocations: 81.7 kB / 0.7876 GB, free: 11.88 MB / 0.6075 GB Notification: Performance of collectInitialEqns (initialization): time 0.002785/1.475, allocations: 1.397 MB / 0.789 GB, free: 10.46 MB / 0.6075 GB Notification: Performance of collectInitialBindings (initialization): time 0.002858/1.478, allocations: 0.9551 MB / 0.7899 GB, free: 9.492 MB / 0.6075 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001084/1.479, allocations: 52 kB / 0.79 GB, free: 9.441 MB / 0.6075 GB Notification: Performance of setup shared object (initialization): time 0.0005271/1.479, allocations: 411.2 kB / 0.7904 GB, free: 9.035 MB / 0.6075 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.00921/1.489, allocations: 2.077 MB / 0.7924 GB, free: 6.953 MB / 0.6075 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.009662/1.498, allocations: 2.4 MB / 0.7947 GB, free: 4.469 MB / 0.6075 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.009234/1.508, allocations: 2.204 MB / 0.7969 GB, free: 2.246 MB / 0.6075 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.924e-05/1.508, allocations: 0 / 0.7969 GB, free: 2.246 MB / 0.6075 GB Notification: Performance of matching and sorting (n=328) (initialization): time 0.02407/1.532, allocations: 5.197 MB / 0.802 GB, free: 13 MB / 0.6231 GB Notification: Performance of prepare postOptimizeDAE: time 6.892e-05/1.532, allocations: 8 kB / 0.802 GB, free: 12.99 MB / 0.6231 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.083e-05/1.532, allocations: 4 kB / 0.802 GB, free: 12.99 MB / 0.6231 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001371/1.533, allocations: 344.8 kB / 0.8023 GB, free: 12.65 MB / 0.6231 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.007688/1.541, allocations: 0.8542 MB / 0.8031 GB, free: 11.79 MB / 0.6231 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01929/1.561, allocations: 4.012 MB / 0.8071 GB, free: 7.652 MB / 0.6231 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.009524/1.57, allocations: 0.5883 MB / 0.8076 GB, free: 7.062 MB / 0.6231 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.002067/1.572, allocations: 119.9 kB / 0.8078 GB, free: 6.945 MB / 0.6231 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 17 * Number of states: 0 () * Number of discrete variables: 32 ($whenCondition1,$PRE.intGai.nextTimeEvent,$whenCondition10,$whenCondition9,$whenCondition8,$whenCondition7,$whenCondition6,$whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$PRE.weaDat.locTim.tNext,weaDat.locTim.tNext,$PRE.weaDat.conTimMin.tNext,weaDat.conTimMin.tNext,$PRE.weaDat.conTim.tNext,weaDat.conTim.tNext,$PRE.weaDat.eqnTim.tNext,weaDat.eqnTim.tNext,$PRE.weaDat.decAng.tNext,weaDat.decAng.tNext,$PRE.HDifTil[1].incAng.decAng.tNext,HDifTil[1].incAng.decAng.tNext,$PRE.HDifTil[2].incAng.decAng.tNext,HDifTil[2].incAng.decAng.tNext,$PRE.HDirTil[1].incAng.decAng.tNext,HDirTil[1].incAng.decAng.tNext,$PRE.HDirTil[2].incAng.decAng.tNext,HDirTil[2].incAng.decAng.tNext,intGai.nextTimeEvent,$PRE.intGai.nextTimeEventScaled,intGai.nextTimeEventScaled) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (298): * Single equations (assignments): 297 * 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 {(3,100.0%) 28} * Non-linear torn systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.006867/1.579, allocations: 0.9774 MB / 0.8087 GB, free: 5.961 MB / 0.6231 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.002929/1.582, allocations: 288.4 kB / 0.809 GB, free: 5.676 MB / 0.6231 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.03045/1.613, allocations: 5.934 MB / 0.8148 GB, free: 15.68 MB / 0.6387 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.507e-05/1.613, allocations: 32 kB / 0.8148 GB, free: 15.65 MB / 0.6387 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.897e-05/1.613, allocations: 4 kB / 0.8148 GB, free: 15.65 MB / 0.6387 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.000104/1.613, allocations: 15.94 kB / 0.8148 GB, free: 15.63 MB / 0.6387 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01251/1.626, allocations: 3.859 MB / 0.8186 GB, free: 11.72 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.55e-05/1.626, allocations: 3.938 kB / 0.8186 GB, free: 11.71 MB / 0.6387 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.008217/1.634, allocations: 0.7918 MB / 0.8194 GB, free: 10.92 MB / 0.6387 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.002097/1.636, allocations: 379.2 kB / 0.8197 GB, free: 10.54 MB / 0.6387 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.001174/1.637, allocations: 91.88 kB / 0.8198 GB, free: 10.45 MB / 0.6387 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.01245/1.65, allocations: 5.894 MB / 0.8256 GB, free: 4.266 MB / 0.6387 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.038e-06/1.65, allocations: 0 / 0.8256 GB, free: 4.266 MB / 0.6387 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.731/2.381, allocations: 8.402 MB / 0.8338 GB, free: 224.3 MB / 0.6387 GB Notification: Performance of postOpt removeConstants (simulation): time 0.005997/2.387, allocations: 0.9117 MB / 0.8347 GB, free: 224.3 MB / 0.6387 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.002795/2.39, allocations: 62.09 kB / 0.8347 GB, free: 224.3 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.008489/2.398, allocations: 464.8 kB / 0.8352 GB, free: 224.3 MB / 0.6387 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.001971/2.401, allocations: 209.3 kB / 0.8354 GB, free: 224.2 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.001565/2.402, allocations: 114.8 kB / 0.8355 GB, free: 224.2 MB / 0.6387 GB Notification: Performance of sorting global known variables: time 0.007785/2.41, allocations: 1.831 MB / 0.8373 GB, free: 223.8 MB / 0.6387 GB Notification: Performance of sort global known variables: time 1.643e-06/2.41, allocations: 2.688 kB / 0.8373 GB, free: 223.8 MB / 0.6387 GB Notification: Performance of remove unused functions: time 0.009071/2.419, allocations: 1.085 MB / 0.8383 GB, free: 223.6 MB / 0.6387 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 4 (thermalZoneTwoElements.volAir.dynBal.U,thermalZoneTwoElements.volAir.dynBal.m,thermalZoneTwoElements.extWallRC.thermCapExt[1].T,thermalZoneTwoElements.intWallRC.thermCapInt[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 (279): * Single equations (assignments): 265 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 11 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 2 {(3,100.0%) 25,(1,100.0%) 3} * Non-linear torn systems: 1 {1 2} Notification: Performance of Backend phase and start with SimCode phase: time 0.05087/2.47, allocations: 9.909 MB / 0.848 GB, free: 220.2 MB / 0.6387 GB Notification: Performance of simCode: created initialization part: time 0.02489/2.495, allocations: 5.068 MB / 0.853 GB, free: 218.7 MB / 0.6387 GB Notification: Performance of simCode: created event and clocks part: time 1.326e-05/2.495, allocations: 1.375 kB / 0.853 GB, free: 218.7 MB / 0.6387 GB Notification: Performance of simCode: created simulation system equations: time 0.01382/2.509, allocations: 2.927 MB / 0.8558 GB, free: 217.6 MB / 0.6387 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.007581/2.517, allocations: 0.5975 MB / 0.8564 GB, free: 217.4 MB / 0.6387 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.1019/2.619, allocations: 29 MB / 0.8847 GB, free: 195.8 MB / 0.6387 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.004403/2.623, allocations: 2.608 MB / 0.8873 GB, free: 193.2 MB / 0.6387 GB Notification: Performance of simCode: alias equations: time 0.009167/2.632, allocations: 1.155 MB / 0.8884 GB, free: 192 MB / 0.6387 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.00508/2.637, allocations: 1.518 MB / 0.8899 GB, free: 190.5 MB / 0.6387 GB Notification: Performance of SimCode: time 1.353e-06/2.638, allocations: 4 kB / 0.8899 GB, free: 190.5 MB / 0.6387 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.1894/2.827, allocations: 73.55 MB / 0.9617 GB, free: 117.6 MB / 0.6387 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0002975/2.827, allocations: 264.8 kB / 0.962 GB, free: 117.2 MB / 0.6387 GB Notification: Performance of buildModelFMU: Generate platform static: time 7.452/10.28, allocations: 0 / 0.962 GB, free: 117.2 MB / 0.6387 GB (rm -f IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomTwoElements.pipe ; mkfifo IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomTwoElements.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomTwoElements.pipe >> ../files/IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomTwoElements.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_IBPSA_latest_IBPSA_ThermalZones_ReducedOrder_Examples_SimpleRoomTwoElements_fmu --startTime=0 --stopTime=3.1536e+07 --timeout=50 --tolerance=1e-06 IBPSA_latest_IBPSA_ThermalZones_ReducedOrder_Examples_SimpleRoomTwoElements.fmu > IBPSA_latest_IBPSA.ThermalZones.ReducedOrder.Examples.SimpleRoomTwoElements.pipe 2>&1) Environment - environmentSimulation: