Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.Applications.DataCenters.ChillerCooled.Examples.IntegratedPrimaryLoadSideEconomizer.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 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo", uses=false) Using package Buildings with version 8.1.4 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/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 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(Buildings.Applications.DataCenters.ChillerCooled.Examples.IntegratedPrimaryLoadSideEconomizer,fileNamePrefix="Buildings_8_Buildings_Applications_DataCenters_ChillerCooled_Examples_IntegratedPrimaryLoadSideEconomizer",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Applications.DataCenters.ChillerCooled.Examples.IntegratedPrimaryLoadSideEconomizer,fileNamePrefix="Buildings_8_Buildings_Applications_DataCenters_ChillerCooled_Examples_IntegratedPrimaryLoadSideEconomizer",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 0.0008698/0.0008698, allocations: 91.69 kB / 15.36 MB, free: 0.7383 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.005311/0.005312, allocations: 172.4 kB / 16.26 MB, free: 6.613 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.179/1.179, allocations: 205.4 MB / 222.5 MB, free: 5.562 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.504/1.504, allocations: 292.7 MB / 0.5502 GB, free: 14.45 MB / 462.1 MB Notification: Modelica requested package Complex of version 3.2.3. Complex 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Modelica requested package ModelicaServices of version 3.2.3. ModelicaServices 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.0004678/0.0004679, allocations: 18.19 kB / 0.6744 GB, free: 25.61 MB / 0.5294 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1686/0.169, allocations: 116.3 MB / 0.788 GB, free: 11.47 MB / 0.6075 GB Notification: Performance of NFInst.instantiate(Buildings.Applications.DataCenters.ChillerCooled.Examples.IntegratedPrimaryLoadSideEconomizer): time 2.067/2.236, allocations: 1.076 GB / 1.864 GB, free: 35.51 MB / 1.123 GB Notification: Performance of NFInst.instExpressions: time 0.1196/2.356, allocations: 123.9 MB / 1.985 GB, free: 14.05 MB / 1.123 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.02152/2.377, allocations: 0.6249 MB / 1.986 GB, free: 14.05 MB / 1.123 GB Notification: Performance of NFTyping.typeComponents: time 0.01672/2.394, allocations: 6.796 MB / 1.993 GB, free: 9.215 MB / 1.123 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/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 8.1.4-maint.8.1.x/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 8.1.4-maint.8.1.x/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 8.1.4-maint.8.1.x/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 0.04521/2.439, allocations: 19.76 MB / 2.012 GB, free: 10.54 MB / 1.139 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/Fluid/Chillers/BaseClasses/warnIfPerformanceOutOfBounds.mo:2:1-41:33:writable] Warning: Pure function ‘Buildings.Fluid.Chillers.BaseClasses.warnIfPerformanceOutOfBounds‘ contains a call to impure function ‘Modelica.Utilities.Streams.print‘. Notification: Performance of NFTyping.typeClassSections: time 0.03238/2.472, allocations: 14.94 MB / 2.026 GB, free: 13.15 MB / 1.154 GB Notification: Performance of NFFlatten.flatten: time 0.08207/2.554, allocations: 81 MB / 2.106 GB, free: 14.19 MB / 1.232 GB Notification: Performance of NFFlatten.resolveConnections: time 0.03246/2.586, allocations: 23.8 MB / 2.129 GB, free: 6.699 MB / 1.248 GB Notification: Performance of NFEvalConstants.evaluate: time 0.03639/2.623, allocations: 19.26 MB / 2.148 GB, free: 4.316 MB / 1.264 GB Notification: Performance of NFSimplifyModel.simplify: time 0.02961/2.652, allocations: 18.01 MB / 2.165 GB, free: 3.625 MB / 1.279 GB Notification: Performance of NFPackage.collectConstants: time 0.004857/2.657, allocations: 1.043 MB / 2.166 GB, free: 2.582 MB / 1.279 GB Notification: Performance of NFFlatten.collectFunctions: time 0.02818/2.685, allocations: 12.68 MB / 2.179 GB, free: 6.934 MB / 1.295 GB Notification: Performance of NFScalarize.scalarize: time 0.007999/2.694, allocations: 6.219 MB / 2.185 GB, free: 0.8438 MB / 1.295 GB Notification: Performance of NFVerifyModel.verify: time 0.02133/2.715, allocations: 13.4 MB / 2.198 GB, free: 3.523 MB / 1.311 GB Notification: Performance of NFConvertDAE.convert: time 1.11/3.825, allocations: 51.95 MB / 2.248 GB, free: 85.27 MB / 1.311 GB Notification: Performance of FrontEnd - DAE generated: time 3.907e-06/3.825, allocations: 0 / 2.248 GB, free: 85.27 MB / 1.311 GB Notification: Performance of FrontEnd: time 1.964e-06/3.825, allocations: 0 / 2.248 GB, free: 85.27 MB / 1.311 GB Notification: Performance of Transformations before backend: time 0.001227/3.826, allocations: 0 / 2.248 GB, free: 85.27 MB / 1.311 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 4132 * Number of variables: 4132 Notification: Performance of Generate backend data structure: time 0.06733/3.893, allocations: 25.98 MB / 2.274 GB, free: 74.26 MB / 1.311 GB Notification: Performance of prepare preOptimizeDAE: time 3.87e-05/3.894, allocations: 10.59 kB / 2.274 GB, free: 74.26 MB / 1.311 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.007936/3.901, allocations: 2.132 MB / 2.276 GB, free: 74.12 MB / 1.311 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.03648/3.938, allocations: 6.647 MB / 2.282 GB, free: 72.63 MB / 1.311 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0519/3.99, allocations: 27.8 MB / 2.31 GB, free: 68.88 MB / 1.311 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.002381/3.992, allocations: 1.612 MB / 2.311 GB, free: 68.71 MB / 1.311 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.006863/3.999, allocations: 1.708 MB / 2.313 GB, free: 68.7 MB / 1.311 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.06141/4.061, allocations: 25.6 MB / 2.338 GB, free: 66.84 MB / 1.311 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0004831/4.061, allocations: 28.78 kB / 2.338 GB, free: 66.83 MB / 1.311 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.003815/4.065, allocations: 0.6622 MB / 2.339 GB, free: 66.83 MB / 1.311 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0005641/4.066, allocations: 0.6558 MB / 2.339 GB, free: 66.8 MB / 1.311 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.05465/4.12, allocations: 25.32 MB / 2.364 GB, free: 66.58 MB / 1.311 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 0.1624/4.283, allocations: 109.2 MB / 2.471 GB, free: 7.438 MB / 1.311 GB Notification: Performance of preOpt comSubExp (simulation): time 0.03728/4.32, allocations: 18.56 MB / 2.489 GB, free: 3.523 MB / 1.311 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.02091/4.341, allocations: 10.71 MB / 2.499 GB, free: 1.742 MB / 1.311 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 evalFunc (simulation): time 0.08254/4.423, allocations: 35.52 MB / 2.534 GB, free: 7.887 MB / 1.342 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.02318/4.447, allocations: 10.67 MB / 2.544 GB, free: 13.15 MB / 1.358 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.01921/4.466, allocations: 3.651 MB / 2.548 GB, free: 9.52 MB / 1.358 GB Notification: Performance of pre-optimization done (n=1194): time 3.81e-05/4.466, allocations: 0 / 2.548 GB, free: 9.52 MB / 1.358 GB Notification: Performance of matching and sorting (n=1208): time 0.1526/4.619, allocations: 52.39 MB / 2.599 GB, free: 4.852 MB / 1.404 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.000228/4.619, allocations: 436.6 kB / 2.599 GB, free: 4.359 MB / 1.404 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0454/4.664, allocations: 21.41 MB / 2.62 GB, free: 15.06 MB / 1.436 GB Notification: Performance of collectPreVariables (initialization): time 0.003698/4.668, allocations: 373 kB / 2.621 GB, free: 14.69 MB / 1.436 GB Notification: Performance of collectInitialEqns (initialization): time 0.01415/4.682, allocations: 10.99 MB / 2.631 GB, free: 3.777 MB / 1.436 GB Notification: Performance of collectInitialBindings (initialization): time 0.006158/4.688, allocations: 3.935 MB / 2.635 GB, free: 15.89 MB / 1.451 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.004605/4.693, allocations: 1.434 MB / 2.637 GB, free: 14.45 MB / 1.451 GB Notification: Performance of setup shared object (initialization): time 7.936e-05/4.693, allocations: 301.1 kB / 2.637 GB, free: 14.15 MB / 1.451 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.02046/4.714, allocations: 9.608 MB / 2.646 GB, free: 4.531 MB / 1.451 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.02399/4.738, allocations: 13.71 MB / 2.66 GB, free: 5.418 MB / 1.467 GB Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: ahu.cooCoi.ele[1].vol2.dynBal.medium.p = ahu.cooCoi.ele[1].vol2.dynBal.p_start (ahu.fan.vol.dynBal.p_start = ahu.cooCoi.ele[1].vol2.dynBal.p_start) Notification: Performance of analyzeInitialSystem (initialization): time 1.217/5.955, allocations: 128 MB / 2.785 GB, free: 337.3 MB / 1.514 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.722e-05/5.955, allocations: 26.03 kB / 2.785 GB, free: 337.3 MB / 1.514 GB Notification: Performance of matching and sorting (n=1906) (initialization): time 0.0548/6.01, allocations: 26.57 MB / 2.811 GB, free: 333.1 MB / 1.514 GB Notification: Performance of prepare postOptimizeDAE: time 0.0009957/6.011, allocations: 2.606 MB / 2.813 GB, free: 329.8 MB / 1.514 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0001007/6.011, allocations: 81.06 kB / 2.813 GB, free: 329.8 MB / 1.514 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.008975/6.02, allocations: 3.063 MB / 2.816 GB, free: 329 MB / 1.514 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01643/6.037, allocations: 3.387 MB / 2.82 GB, free: 328.3 MB / 1.514 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01273/6.049, allocations: 15.15 MB / 2.834 GB, free: 317.8 MB / 1.514 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.02334/6.073, allocations: 2.25 MB / 2.837 GB, free: 317.1 MB / 1.514 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.003579/6.076, allocations: 0.7509 MB / 2.837 GB, free: 316.9 MB / 1.514 GB Notification: Performance of prepare postOptimizeDAE: time 9.337e-06/6.076, allocations: 3.75 kB / 2.837 GB, free: 316.9 MB / 1.514 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.04522/6.122, allocations: 23.95 MB / 2.861 GB, free: 308.7 MB / 1.514 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0002211/6.122, allocations: 85.84 kB / 2.861 GB, free: 308.6 MB / 1.514 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.007556/6.129, allocations: 2.649 MB / 2.863 GB, free: 306.4 MB / 1.514 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01585/6.145, allocations: 3.392 MB / 2.867 GB, free: 303.3 MB / 1.514 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01289/6.158, allocations: 14.67 MB / 2.881 GB, free: 290.3 MB / 1.514 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.02328/6.181, allocations: 2.226 MB / 2.883 GB, free: 288.4 MB / 1.514 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.00377/6.185, allocations: 0.7332 MB / 2.884 GB, free: 287.8 MB / 1.514 GB Warning: The initial conditions are over specified. The following 1 initial equations are redundant, so they are removed from the initialization sytem: ahu.cooCoi.ele[1].vol2.dynBal.medium.p = ahu.cooCoi.ele[1].vol2.dynBal.p_start. Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 366 * Number of states: 0 () * Number of discrete variables: 295 ($PRE.ahu.heaCon.offToOn.enableFire,$PRE.ahu.heaCon.onToOff.enableFire,$PRE.chiStaCon.con1.enableFire,$PRE.chiStaCon.con2.enableFire,$PRE.chiStaCon.con3.enableFire,$PRE.chiStaCon.con4.enableFire,$PRE.CWPumCon.con1.enableFire,$PRE.CWPumCon.con2.enableFire,$PRE.CWPumCon.con3.enableFire,$PRE.CWPumCon.con4.enableFire,$PRE.varSpeCon.con1.enableFire,$PRE.varSpeCon.con2.enableFire,$PRE.varSpeCon.con3.enableFire,$PRE.varSpeCon.con4.enableFire,$PRE.cooModCon.con1.enableFire,$PRE.cooModCon.con2.enableFire,$PRE.cooModCon.con3.enableFire,$PRE.cooModCon.con4.enableFire,swiTim.y,$PRE.swiTim.y,cooModCon.stateGraphRoot.resume,cooModCon.stateGraphRoot.suspend,varSpeCon.stateGraphRoot.resume,varSpeCon.stateGraphRoot.suspend,CWPumCon.stateGraphRoot.resume,CWPumCon.stateGraphRoot.suspend,chiStaCon.stateGraphRoot.resume,chiStaCon.stateGraphRoot.suspend,ahu.heaCon.stateGraphRoot.resume,ahu.heaCon.stateGraphRoot.suspend,swiTim.local_set,swiTim.local_reset,$PRE.cooModCon.swi.y,$PRE.cooModCon.con4.t_start,$PRE.cooModCon.con3.t_start,$PRE.cooModCon.con2.t_start,$PRE.cooModCon.fulMecCoo.oldActive,$PRE.cooModCon.fulMecCoo.newActive,$PRE.cooModCon.fulMecCoo.localActive,$PRE.cooModCon.freCoo.oldActive,$PRE.cooModCon.freCoo.newActive,$PRE.cooModCon.freCoo.localActive,$PRE.cooModCon.parMecCoo.oldActive,$PRE.cooModCon.parMecCoo.newActive,$PRE.cooModCon.parMecCoo.localActive,$PRE.cooModCon.con1.t_start,$PRE.varSpeCon.con4.t_start,$PRE.varSpeCon.con3.t_start,$PRE.varSpeCon.con2.t_start,$PRE.varSpeCon.twoOn.oldActive,$PRE.varSpeCon.twoOn.newActive,$PRE.varSpeCon.twoOn.localActive,$PRE.varSpeCon.off.oldActive,$PRE.varSpeCon.off.newActive,$PRE.varSpeCon.off.localActive,$PRE.varSpeCon.oneOn.oldActive,$PRE.varSpeCon.oneOn.newActive,$PRE.varSpeCon.oneOn.localActive,$PRE.varSpeCon.con1.t_start,$PRE.CWPumCon.con4.t_start,$PRE.CWPumCon.con3.t_start,$PRE.CWPumCon.con2.t_start,$PRE.CWPumCon.twoOn.oldActive,$PRE.CWPumCon.twoOn.newActive,$PRE.CWPumCon.twoOn.localActive,$PRE.CWPumCon.off.oldActive,$PRE.CWPumCon.off.newActive,$PRE.CWPumCon.off.localActive,$PRE.CWPumCon.oneOn.oldActive,$PRE.CWPumCon.oneOn.newActive,$PRE.CWPumCon.oneOn.localActive,$PRE.CWPumCon.con1.t_start,$PRE.chiStaCon.con4.t_start,$PRE.chiStaCon.con3.t_start,$PRE.chiStaCon.con2.t_start,$PRE.chiStaCon.twoOn.oldActive,$PRE.chiStaCon.twoOn.newActive,$PRE.chiStaCon.twoOn.localActive,$PRE.chiStaCon.off.oldActive,$PRE.chiStaCon.off.newActive,$PRE.chiStaCon.off.localActive,$PRE.chiStaCon.oneOn.oldActive,$PRE.chiStaCon.oneOn.newActive,$PRE.chiStaCon.oneOn.localActive,$PRE.chiStaCon.con1.t_start,$PRE.ahu.heaCon.onToOff.t_start,$PRE.ahu.heaCon.offToOn.t_start,$PRE.ahu.heaCon.on.oldActive,$PRE.ahu.heaCon.on.newActive,$PRE.ahu.heaCon.on.localActive,$PRE.ahu.heaCon.off.oldActive,$PRE.ahu.heaCon.off.newActive,$PRE.ahu.heaCon.off.localActive,$PRE.chiWSE.pum.hys[2].y,$PRE.chiWSE.pum.hys[1].y,cooModCon.swi.expr[3],cooModCon.swi.expr[2],cooModCon.swi.expr[1],cooModCon.swi.firstActiveIndex,cooModCon.swi.y,cooModCon.stateGraphRoot.activeSteps,cooModCon.con4.t_start,cooModCon.con4.fire,cooModCon.con4.enableFire,cooModCon.con4.condition,cooModCon.con3.t_start,cooModCon.con3.fire,cooModCon.con3.enableFire,cooModCon.con3.condition,cooModCon.con2.t_start,cooModCon.con2.fire,cooModCon.con2.enableFire,cooModCon.con2.condition,cooModCon.fulMecCoo.active,cooModCon.fulMecCoo.oldActive,cooModCon.fulMecCoo.newActive,cooModCon.fulMecCoo.localActive,cooModCon.freCoo.active,cooModCon.freCoo.oldActive,cooModCon.freCoo.newActive,cooModCon.freCoo.localActive,cooModCon.parMecCoo.active,cooModCon.parMecCoo.oldActive,cooModCon.parMecCoo.newActive,cooModCon.parMecCoo.outPort[2].available,cooModCon.parMecCoo.inPort[2].occupied,cooModCon.parMecCoo.localActive,cooModCon.con1.t_start,cooModCon.con1.fire,cooModCon.con1.enableFire,cooModCon.con1.condition,varSpeCon.addInt.y,varSpeCon.booToInt1.y,varSpeCon.booToInt.y,varSpeCon.stateGraphRoot.activeSteps,varSpeCon.con4.t_start,varSpeCon.con4.fire,varSpeCon.con4.enableFire,varSpeCon.con4.condition,varSpeCon.con3.t_start,varSpeCon.con3.fire,varSpeCon.con3.enableFire,varSpeCon.con3.condition,varSpeCon.con2.t_start,varSpeCon.con2.fire,varSpeCon.con2.enableFire,varSpeCon.con2.condition,varSpeCon.twoOn.active,varSpeCon.twoOn.oldActive,varSpeCon.twoOn.newActive,varSpeCon.twoOn.localActive,varSpeCon.off.oldActive,varSpeCon.off.newActive,varSpeCon.off.localActive,varSpeCon.off.active,varSpeCon.oneOn.active,varSpeCon.oneOn.oldActive,varSpeCon.oneOn.newActive,varSpeCon.oneOn.outPort[2].available,varSpeCon.oneOn.inPort[2].occupied,varSpeCon.oneOn.localActive,varSpeCon.con1.t_start,varSpeCon.con1.fire,varSpeCon.con1.enableFire,varSpeCon.con1.condition,cooTowSpeCon.fmcMod.y,cooTowSpeCon.pmcMod.y,chiNumOn.y,CWPumCon.addInt.y,CWPumCon.booToInt1.y,CWPumCon.booToInt.y,CWPumCon.stateGraphRoot.activeSteps,CWPumCon.con4.t_start,CWPumCon.con4.fire,CWPumCon.con4.enableFire,CWPumCon.con4.condition,CWPumCon.con3.t_start,CWPumCon.con3.fire,CWPumCon.con3.enableFire,CWPumCon.con3.condition,CWPumCon.con2.t_start,CWPumCon.con2.fire,CWPumCon.con2.enableFire,CWPumCon.con2.condition,CWPumCon.twoOn.active,CWPumCon.twoOn.oldActive,CWPumCon.twoOn.newActive,CWPumCon.twoOn.localActive,CWPumCon.off.oldActive,CWPumCon.off.newActive,CWPumCon.off.localActive,CWPumCon.off.active,CWPumCon.oneOn.active,CWPumCon.oneOn.oldActive,CWPumCon.oneOn.newActive,CWPumCon.oneOn.outPort[2].available,CWPumCon.oneOn.inPort[2].occupied,CWPumCon.oneOn.localActive,CWPumCon.con1.t_start,CWPumCon.con1.fire,CWPumCon.con1.enableFire,CWPumCon.con1.condition,chiOn[2].y,chiOn[1].y,chiStaCon.addInt.y,chiStaCon.booToInt1.y,chiStaCon.booToInt.y,chiStaCon.stateGraphRoot.activeSteps,chiStaCon.con4.t_start,chiStaCon.con4.fire,chiStaCon.con4.enableFire,chiStaCon.con4.condition,chiStaCon.con3.t_start,chiStaCon.con3.fire,chiStaCon.con3.enableFire,chiStaCon.con3.condition,chiStaCon.con2.t_start,chiStaCon.con2.fire,chiStaCon.con2.enableFire,chiStaCon.con2.condition,chiStaCon.twoOn.active,chiStaCon.twoOn.oldActive,chiStaCon.twoOn.newActive,chiStaCon.twoOn.localActive,chiStaCon.off.oldActive,chiStaCon.off.newActive,chiStaCon.off.localActive,chiStaCon.off.active,chiStaCon.oneOn.active,chiStaCon.oneOn.oldActive,chiStaCon.oneOn.newActive,chiStaCon.oneOn.outPort[2].available,chiStaCon.oneOn.inPort[2].occupied,chiStaCon.oneOn.localActive,chiStaCon.con1.t_start,chiStaCon.con1.fire,chiStaCon.con1.enableFire,chiStaCon.con1.condition,ahu.heaCon.stateGraphRoot.activeSteps,ahu.heaCon.onToOff.t_start,ahu.heaCon.onToOff.fire,ahu.heaCon.onToOff.enableFire,ahu.heaCon.onToOff.condition,ahu.heaCon.offToOn.t_start,ahu.heaCon.offToOn.fire,ahu.heaCon.offToOn.enableFire,ahu.heaCon.offToOn.condition,ahu.heaCon.on.active,ahu.heaCon.on.oldActive,ahu.heaCon.on.newActive,ahu.heaCon.on.localActive,ahu.heaCon.off.active,ahu.heaCon.off.oldActive,ahu.heaCon.off.newActive,ahu.heaCon.off.localActive,weaData.conTim.tNext,$PRE.weaData.conTim.tNext,weaData.conTimMin.tNext,$PRE.weaData.conTimMin.tNext,chiWSE.pum.hys[2].y,chiWSE.pum.hys[1].y,chiWSE.on[3],sigCha.y,sigCha.u,$PRE.sigCha.u,$whenCondition1,$whenCondition2,$whenCondition3,$whenCondition4,$whenCondition5,$whenCondition6,$whenCondition7,$whenCondition8,$whenCondition9,$whenCondition10,$whenCondition11,$whenCondition12,$whenCondition13,$whenCondition14,$whenCondition15,$whenCondition16,$whenCondition17,$whenCondition18,$whenCondition19,$whenCondition20,$whenCondition21,ahuFanSpeCon.I.trigger_internal,ahuValSig.I.trigger_internal,pumSpe.I.trigger_internal,cooTowSpeCon.conPID.I.trigger_internal,EIT.local_reset,EHVAC.local_reset,FMCHou.trigger_internal,PMCTim.trigger_internal,FCTim.trigger_internal) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (1731): * Single equations (assignments): 1697 * Array equations: 19 * Algorithm blocks: 0 * Record equations: 2 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 6 * Torn equation systems: 7 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 6 systems {1, 1, 1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(1,8,100.0%), (1,2,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 5 systems {(6,44), (7,40), (3,5), (1,8), (1,2)} Notification: Performance of prepare postOptimizeDAE: time 0.0175/6.203, allocations: 8.198 MB / 2.892 GB, free: 283.2 MB / 1.514 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.004936/6.208, allocations: 2.03 MB / 2.894 GB, free: 282.2 MB / 1.514 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.04605/6.254, allocations: 22.57 MB / 2.916 GB, free: 267.1 MB / 1.514 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 9.269e-05/6.254, allocations: 144.2 kB / 2.916 GB, free: 266.9 MB / 1.514 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.995e-05/6.254, allocations: 0 / 2.916 GB, free: 266.9 MB / 1.514 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.03563/6.29, allocations: 17.9 MB / 2.934 GB, free: 254.7 MB / 1.514 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 postOpt removeSimpleEquations (simulation): time 0.09479/6.384, allocations: 46.2 MB / 2.979 GB, free: 224 MB / 1.514 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.452e-05/6.384, allocations: 4.156 kB / 2.979 GB, free: 224 MB / 1.514 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.01283/6.397, allocations: 2.647 MB / 2.981 GB, free: 221.4 MB / 1.514 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.003887/6.401, allocations: 1.386 MB / 2.983 GB, free: 220.1 MB / 1.514 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.002412/6.404, allocations: 352.5 kB / 2.983 GB, free: 219.7 MB / 1.514 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.007734/6.411, allocations: 11.87 MB / 2.995 GB, free: 207.4 MB / 1.514 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.647e-06/6.411, allocations: 10.58 kB / 2.995 GB, free: 207.4 MB / 1.514 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.05807/6.47, allocations: 32.49 MB / 3.026 GB, free: 175.9 MB / 1.514 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0122/6.482, allocations: 4.493 MB / 3.031 GB, free: 171.8 MB / 1.514 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.00667/6.488, allocations: 280 kB / 3.031 GB, free: 171.5 MB / 1.514 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0185/6.507, allocations: 1.944 MB / 3.033 GB, free: 169.6 MB / 1.514 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.002978/6.51, allocations: 0.9371 MB / 3.034 GB, free: 168.7 MB / 1.514 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.002296/6.512, allocations: 480.8 kB / 3.034 GB, free: 168.2 MB / 1.514 GB Notification: Performance of sorting global known variables: time 0.02743/6.54, allocations: 14.79 MB / 3.049 GB, free: 153.5 MB / 1.514 GB Notification: Performance of sort global known variables: time 5.51e-07/6.54, allocations: 0 / 3.049 GB, free: 153.5 MB / 1.514 GB Notification: Performance of remove unused functions: time 0.04148/6.581, allocations: 9.428 MB / 3.058 GB, free: 144.2 MB / 1.514 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 6 * Number of states: 53 (FCTim.y,PMCTim.y,FMCHou.y,EHVAC.y,EIT.y,chiWSE.chiPar.chi[1].vol1.dynBal.U,chiWSE.chiPar.chi[1].vol2.dynBal.U,chiWSE.chiPar.chi[2].vol1.dynBal.U,chiWSE.chiPar.chi[2].vol2.dynBal.U,chiWSE.senTem.T,chiWSE.pum.pum[1].vol.dynBal.U,chiWSE.pum.pum[2].vol.dynBal.U,cooTow[1].vol.dynBal.U,cooTow[2].vol.dynBal.U,TCHWSup.T,TCWSup.T,TCWRet.T,pumCW[1].vol.dynBal.U,pumCW[2].vol.dynBal.U,ahu.cooCoi.ele[1].vol1.dynBal.U,ahu.cooCoi.ele[1].vol2.dynBal.U,ahu.cooCoi.ele[1].vol2.dynBal.mXi[1],ahu.cooCoi.ele[1].mas.T,ahu.cooCoi.ele[2].vol1.dynBal.U,ahu.cooCoi.ele[2].vol2.dynBal.U,ahu.cooCoi.ele[2].vol2.dynBal.mXi[1],ahu.cooCoi.ele[2].mas.T,ahu.cooCoi.ele[3].vol1.dynBal.U,ahu.cooCoi.ele[3].vol2.dynBal.U,ahu.cooCoi.ele[3].vol2.dynBal.mXi[1],ahu.cooCoi.ele[3].mas.T,ahu.cooCoi.ele[4].vol1.dynBal.U,ahu.cooCoi.ele[4].vol2.dynBal.U,ahu.cooCoi.ele[4].vol2.dynBal.mXi[1],ahu.cooCoi.ele[4].mas.T,ahu.fan.vol.dynBal.U,ahu.fan.vol.dynBal.m,ahu.fan.vol.dynBal.mXi[1],ahu.fan.filter.x[1],ahu.fan.filter.x[2],ahu.watVal.filter.x[1],ahu.watVal.filter.x[2],ahu.hum.outCon.Xi,ahu.eleHea.hea.outCon.T,TCHWRet.T,TAirSup.T,roo.rooVol.dynBal.U,roo.rooVol.dynBal.m,roo.rooVol.dynBal.mXi[1],cooTowSpeCon.conPID.I.y,pumSpe.I.y,ahuValSig.I.y,ahuFanSpeCon.I.y) * Number of discrete variables: 212 (cooModCon.con3.enableFire,chiStaCon.con3.enableFire,chiStaCon.con4.enableFire,CWPumCon.con3.enableFire,CWPumCon.con4.enableFire,varSpeCon.con3.enableFire,varSpeCon.con4.enableFire,cooModCon.con4.enableFire,chiStaCon.con2.enableFire,cooModCon.con2.enableFire,cooModCon.con1.enableFire,varSpeCon.con2.enableFire,varSpeCon.con1.enableFire,CWPumCon.con2.enableFire,CWPumCon.con1.enableFire,chiStaCon.con1.enableFire,ahu.heaCon.offToOn.enableFire,ahu.heaCon.onToOff.enableFire,sigCha.y,cooModCon.fulMecCoo.localActive,cooModCon.freCoo.localActive,cooModCon.parMecCoo.localActive,varSpeCon.twoOn.localActive,varSpeCon.off.localActive,varSpeCon.oneOn.localActive,CWPumCon.twoOn.localActive,CWPumCon.off.localActive,CWPumCon.oneOn.localActive,chiStaCon.twoOn.localActive,chiStaCon.off.localActive,chiStaCon.oneOn.localActive,ahu.heaCon.on.localActive,ahu.heaCon.off.localActive,$cse46,$cse47,$cse48,$cse49,$cse50,$cse51,$cse52,$cse53,$cse54,$cse55,$cse56,$cse57,$cse58,$cse59,$cse60,$cse61,$cse62,$cse63,$cse64,$cse65,$cse66,$cse67,$cse68,$cse69,$cse78,$cse79,$whenCondition21,$whenCondition20,$whenCondition19,$whenCondition18,$whenCondition17,$whenCondition16,$whenCondition15,$whenCondition14,$whenCondition13,$whenCondition12,$whenCondition11,$whenCondition10,$whenCondition9,$whenCondition8,$whenCondition7,$whenCondition6,$whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,sigCha.u,swiTim.y,chiWSE.on[3],chiWSE.pum.hys[1].y,chiWSE.pum.hys[2].y,weaData.conTimMin.tNext,weaData.conTim.tNext,ahu.heaCon.off.newActive,ahu.heaCon.off.oldActive,ahu.heaCon.off.active,ahu.heaCon.on.newActive,ahu.heaCon.on.oldActive,ahu.heaCon.on.active,ahu.heaCon.offToOn.condition,ahu.heaCon.offToOn.fire,ahu.heaCon.offToOn.t_start,ahu.heaCon.onToOff.condition,ahu.heaCon.onToOff.fire,ahu.heaCon.onToOff.t_start,ahu.heaCon.stateGraphRoot.activeSteps,chiStaCon.con1.condition,chiStaCon.con1.fire,chiStaCon.con1.t_start,chiStaCon.oneOn.inPort[2].occupied,chiStaCon.oneOn.outPort[2].available,chiStaCon.oneOn.newActive,chiStaCon.oneOn.oldActive,chiStaCon.oneOn.active,chiStaCon.off.active,chiStaCon.off.newActive,chiStaCon.off.oldActive,chiStaCon.twoOn.newActive,chiStaCon.twoOn.oldActive,chiStaCon.twoOn.active,chiStaCon.con2.condition,chiStaCon.con2.fire,chiStaCon.con2.t_start,chiStaCon.con3.condition,chiStaCon.con3.fire,chiStaCon.con3.t_start,chiStaCon.con4.condition,chiStaCon.con4.fire,chiStaCon.con4.t_start,chiStaCon.stateGraphRoot.activeSteps,chiStaCon.booToInt.y,chiStaCon.booToInt1.y,chiStaCon.addInt.y,chiOn[1].y,chiOn[2].y,CWPumCon.con1.condition,CWPumCon.con1.fire,CWPumCon.con1.t_start,CWPumCon.oneOn.inPort[2].occupied,CWPumCon.oneOn.outPort[2].available,CWPumCon.oneOn.newActive,CWPumCon.oneOn.oldActive,CWPumCon.oneOn.active,CWPumCon.off.active,CWPumCon.off.newActive,CWPumCon.off.oldActive,CWPumCon.twoOn.newActive,CWPumCon.twoOn.oldActive,CWPumCon.twoOn.active,CWPumCon.con2.condition,CWPumCon.con2.fire,CWPumCon.con2.t_start,CWPumCon.con3.condition,CWPumCon.con3.fire,CWPumCon.con3.t_start,CWPumCon.con4.condition,CWPumCon.con4.fire,CWPumCon.con4.t_start,CWPumCon.stateGraphRoot.activeSteps,CWPumCon.booToInt.y,CWPumCon.booToInt1.y,CWPumCon.addInt.y,chiNumOn.y,cooTowSpeCon.pmcMod.y,cooTowSpeCon.fmcMod.y,varSpeCon.con1.condition,varSpeCon.con1.fire,varSpeCon.con1.t_start,varSpeCon.oneOn.inPort[2].occupied,varSpeCon.oneOn.outPort[2].available,varSpeCon.oneOn.newActive,varSpeCon.oneOn.oldActive,varSpeCon.oneOn.active,varSpeCon.off.active,varSpeCon.off.newActive,varSpeCon.off.oldActive,varSpeCon.twoOn.newActive,varSpeCon.twoOn.oldActive,varSpeCon.twoOn.active,varSpeCon.con2.condition,varSpeCon.con2.fire,varSpeCon.con2.t_start,varSpeCon.con3.condition,varSpeCon.con3.fire,varSpeCon.con3.t_start,varSpeCon.con4.condition,varSpeCon.con4.fire,varSpeCon.con4.t_start,varSpeCon.stateGraphRoot.activeSteps,varSpeCon.booToInt.y,varSpeCon.booToInt1.y,varSpeCon.addInt.y,cooModCon.con1.condition,cooModCon.con1.fire,cooModCon.con1.t_start,cooModCon.parMecCoo.inPort[2].occupied,cooModCon.parMecCoo.outPort[2].available,cooModCon.parMecCoo.newActive,cooModCon.parMecCoo.oldActive,cooModCon.parMecCoo.active,cooModCon.freCoo.newActive,cooModCon.freCoo.oldActive,cooModCon.freCoo.active,cooModCon.fulMecCoo.newActive,cooModCon.fulMecCoo.oldActive,cooModCon.fulMecCoo.active,cooModCon.con2.condition,cooModCon.con2.fire,cooModCon.con2.t_start,cooModCon.con3.condition,cooModCon.con3.fire,cooModCon.con3.t_start,cooModCon.con4.condition,cooModCon.con4.fire,cooModCon.con4.t_start,cooModCon.stateGraphRoot.activeSteps,cooModCon.swi.y,cooModCon.swi.firstActiveIndex) * Number of discrete states: 21 (weaData.conTim.tNext,weaData.conTimMin.tNext,ahu.heaCon.off.newActive,ahu.heaCon.on.newActive,chiStaCon.oneOn.newActive,chiStaCon.off.newActive,chiStaCon.twoOn.newActive,CWPumCon.oneOn.newActive,CWPumCon.off.newActive,CWPumCon.twoOn.newActive,varSpeCon.oneOn.newActive,varSpeCon.off.newActive,varSpeCon.twoOn.newActive,cooModCon.parMecCoo.newActive,cooModCon.freCoo.newActive,cooModCon.fulMecCoo.newActive,cooModCon.swi.y,sigCha.u,chiWSE.pum.hys[1].y,chiWSE.pum.hys[2].y,swiTim.y) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (1269): * Single equations (assignments): 1190 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 33 * When equations: 35 * If-equations: 0 * Equation systems (not torn): 3 * Torn equation systems: 8 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 3 systems {1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(1,8,100.0%), (1,2,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 6 systems {(1,1), (3,14), (1,3), (8,41), (3,5), (1,8)} Notification: Performance of Backend phase and start with SimCode phase: time 0.06717/6.648, allocations: 35.77 MB / 3.093 GB, free: 109.1 MB / 1.514 GB Notification: Performance of simCode: created initialization part: time 0.0681/6.717, allocations: 35.24 MB / 3.127 GB, free: 74.46 MB / 1.514 GB Notification: Performance of simCode: created event and clocks part: time 1.289e-05/6.717, allocations: 6.656 kB / 3.127 GB, free: 74.45 MB / 1.514 GB Notification: Performance of simCode: created simulation system equations: time 0.02009/6.737, allocations: 10.53 MB / 3.138 GB, free: 64.14 MB / 1.514 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.06295/6.8, allocations: 11.1 MB / 3.148 GB, free: 53.25 MB / 1.514 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 1.701/8.501, allocations: 412 MB / 3.551 GB, free: 0.5913 GB / 1.561 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.01579/8.517, allocations: 14.38 MB / 3.565 GB, free: 0.582 GB / 1.561 GB Notification: Performance of simCode: alias equations: time 0.03127/8.548, allocations: 8.415 MB / 3.573 GB, free: 0.577 GB / 1.561 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.02059/8.569, allocations: 11.58 MB / 3.584 GB, free: 0.5666 GB / 1.561 GB Notification: Performance of SimCode: time 6.82e-07/8.569, allocations: 0 / 3.584 GB, free: 0.5666 GB / 1.561 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 9.415/17.98, allocations: 0.615 GB / 4.199 GB, free: 0.7582 GB / 1.561 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0001831/17.98, allocations: 342.4 kB / 4.2 GB, free: 0.7579 GB / 1.561 GB Notification: Performance of buildModelFMU: Generate platform static: time 21.72/39.71, allocations: 6.562 kB / 4.2 GB, free: 0.7579 GB / 1.561 GB (rm -f Buildings_8_Buildings.Applications.DataCenters.ChillerCooled.Examples.IntegratedPrimaryLoadSideEconomizer.pipe ; mkfifo Buildings_8_Buildings.Applications.DataCenters.ChillerCooled.Examples.IntegratedPrimaryLoadSideEconomizer.pipe ; head -c 1048576 < Buildings_8_Buildings.Applications.DataCenters.ChillerCooled.Examples.IntegratedPrimaryLoadSideEconomizer.pipe >> ../files/Buildings_8_Buildings.Applications.DataCenters.ChillerCooled.Examples.IntegratedPrimaryLoadSideEconomizer.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_Buildings_8_Buildings_Applications_DataCenters_ChillerCooled_Examples_IntegratedPrimaryLoadSideEconomizer_fmu --startTime=0 --stopTime=86400 --timeout=50 --tolerance=1e-06 Buildings_8_Buildings_Applications_DataCenters_ChillerCooled_Examples_IntegratedPrimaryLoadSideEconomizer.fmu > Buildings_8_Buildings.Applications.DataCenters.ChillerCooled.Examples.IntegratedPrimaryLoadSideEconomizer.pipe 2>&1)