Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.IntegratedPrimaryPlantSide.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/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 8.1.4 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo) Running command: "" <> buildModelFMU(Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.IntegratedPrimaryPlantSide,fileNamePrefix="Buildings_8_Buildings_Applications_DataCenters_ChillerCooled_Equipment_Validation_IntegratedPrimaryPlantSide",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.IntegratedPrimaryPlantSide,fileNamePrefix="Buildings_8_Buildings_Applications_DataCenters_ChillerCooled_Equipment_Validation_IntegratedPrimaryPlantSide",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.777/1.777, allocations: 289.7 MB / 302.2 MB, free: 2.16 MB / 234.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.001176/0.001176, allocations: 181 kB / 371.6 MB, free: 3.367 MB / 298.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 2.033/2.033, allocations: 205.1 MB / 0.6309 GB, free: 11.78 MB / 474.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.001097/0.001098, allocations: 91.02 kB / 0.745 GB, free: 54.55 MB / 0.5573 GB Notification: Performance of FrontEnd - loaded program: time 4.367e-05/4.37e-05, allocations: 7.984 kB / 0.8663 GB, free: 14.97 MB / 0.6042 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2996/0.2997, allocations: 116.3 MB / 0.9799 GB, free: 10.5 MB / 0.7136 GB Notification: Performance of FrontEnd - scodeFlatten: time 2.165/2.464, allocations: 497 MB / 1.465 GB, free: 251.4 MB / 0.948 GB Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003701/2.465, allocations: 106.6 kB / 1.465 GB, free: 251.4 MB / 0.948 GB Notification: Performance of FrontEnd - DAE generated: time 30.66/33.13, allocations: 6.484 GB / 7.949 GB, free: 55.62 MB / 1.307 GB Notification: Performance of FrontEnd: time 1.754e-06/33.13, allocations: 0 / 7.949 GB, free: 55.62 MB / 1.307 GB Notification: Performance of Transformations before backend: time 0.004308/33.13, allocations: 367.9 kB / 7.95 GB, free: 55.55 MB / 1.307 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 1792 * Number of variables: 1792 Notification: Performance of Generate backend data structure: time 0.05068/33.18, allocations: 12.6 MB / 7.962 GB, free: 49.86 MB / 1.307 GB Notification: Performance of prepare preOptimizeDAE: time 5.31e-05/33.18, allocations: 9.125 kB / 7.962 GB, free: 49.86 MB / 1.307 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.005794/33.19, allocations: 0.9158 MB / 7.963 GB, free: 49.78 MB / 1.307 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0234/33.21, allocations: 3.523 MB / 7.966 GB, free: 48.87 MB / 1.307 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.06096/33.27, allocations: 18.88 MB / 7.985 GB, free: 46.51 MB / 1.307 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.002703/33.27, allocations: 1.025 MB / 7.986 GB, free: 46.34 MB / 1.307 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.005173/33.28, allocations: 0.817 MB / 7.987 GB, free: 46.33 MB / 1.307 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.03739/33.32, allocations: 10.47 MB / 7.997 GB, free: 45.32 MB / 1.307 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.000599/33.32, allocations: 6.219 kB / 7.997 GB, free: 45.32 MB / 1.307 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.005055/33.32, allocations: 304.5 kB / 7.997 GB, free: 45.32 MB / 1.307 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0002609/33.32, allocations: 185.8 kB / 7.997 GB, free: 45.31 MB / 1.307 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0273/33.35, allocations: 9.905 MB / 8.007 GB, free: 45.22 MB / 1.307 GB Warning: The model contains alias variables with conflicting start and/or 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 0.133/33.48, allocations: 58.49 MB / 8.064 GB, free: 20.42 MB / 1.307 GB Notification: Performance of preOpt comSubExp (simulation): time 0.01758/33.5, allocations: 7.45 MB / 8.071 GB, free: 19.08 MB / 1.307 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.008341/33.51, allocations: 3.778 MB / 8.075 GB, free: 18.46 MB / 1.307 GB Notification: Performance of preOpt evalFunc (simulation): time 0.003174/33.51, allocations: 3.124 MB / 8.078 GB, free: 15 MB / 1.307 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.01074/33.52, allocations: 4.021 MB / 8.082 GB, free: 13.41 MB / 1.307 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.01766/33.54, allocations: 2.379 MB / 8.084 GB, free: 12.76 MB / 1.307 GB Notification: Performance of pre-optimization done (n=429): time 4.224e-05/33.54, allocations: 4 kB / 8.084 GB, free: 12.75 MB / 1.307 GB Notification: Performance of matching and sorting (n=429): time 0.02841/33.57, allocations: 7.94 MB / 8.092 GB, free: 9.441 MB / 1.307 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0003393/33.57, allocations: 0.989 MB / 8.093 GB, free: 8.277 MB / 1.307 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.04867/33.62, allocations: 12.16 MB / 8.105 GB, free: 3.828 MB / 1.307 GB Notification: Performance of collectPreVariables (initialization): time 0.003405/33.62, allocations: 161.5 kB / 8.105 GB, free: 3.707 MB / 1.307 GB Notification: Performance of collectInitialEqns (initialization): time 0.01546/33.64, allocations: 6.333 MB / 8.111 GB, free: 14.69 MB / 1.323 GB Notification: Performance of collectInitialBindings (initialization): time 0.004399/33.64, allocations: 1.485 MB / 8.113 GB, free: 13.5 MB / 1.323 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.003165/33.64, allocations: 121.8 kB / 8.113 GB, free: 13.4 MB / 1.323 GB Notification: Performance of setup shared object (initialization): time 0.001305/33.65, allocations: 0.5522 MB / 8.113 GB, free: 12.98 MB / 1.323 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.01125/33.66, allocations: 3.923 MB / 8.117 GB, free: 11.4 MB / 1.323 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.01418/33.67, allocations: 6.277 MB / 8.123 GB, free: 7 MB / 1.323 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01262/33.68, allocations: 4.47 MB / 8.128 GB, free: 5.098 MB / 1.323 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 0.0001116/33.68, allocations: 10.31 kB / 8.128 GB, free: 5.098 MB / 1.323 GB Notification: Performance of matching and sorting (n=801) (initialization): time 0.04497/33.73, allocations: 11.11 MB / 8.139 GB, free: 14.76 MB / 1.339 GB Notification: Performance of prepare postOptimizeDAE: time 0.01058/33.74, allocations: 23.27 MB / 8.161 GB, free: 6.391 MB / 1.354 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0003224/33.74, allocations: 51.17 kB / 8.161 GB, free: 6.348 MB / 1.354 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001521/33.74, allocations: 432.5 kB / 8.162 GB, free: 5.973 MB / 1.354 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0118/33.75, allocations: 1.897 MB / 8.164 GB, free: 4.496 MB / 1.354 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.004703/33.76, allocations: 4.313 MB / 8.168 GB, free: 208 kB / 1.354 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.02087/33.78, allocations: 1.328 MB / 8.169 GB, free: 15.29 MB / 1.37 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.003533/33.78, allocations: 348 kB / 8.169 GB, free: 15 MB / 1.37 GB Notification: Performance of prepare postOptimizeDAE: time 3.023e-05/33.78, allocations: 4 kB / 8.169 GB, free: 15 MB / 1.37 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.03618/33.82, allocations: 9.901 MB / 8.179 GB, free: 6.328 MB / 1.37 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0003604/33.82, allocations: 54.8 kB / 8.179 GB, free: 6.281 MB / 1.37 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001691/33.82, allocations: 443.5 kB / 8.18 GB, free: 5.914 MB / 1.37 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01079/33.83, allocations: 1.861 MB / 8.181 GB, free: 4.461 MB / 1.37 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.531/35.36, allocations: 5.799 MB / 8.187 GB, free: 137.7 MB / 1.37 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.02019/35.38, allocations: 1.294 MB / 8.188 GB, free: 137.7 MB / 1.37 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.003163/35.39, allocations: 344.7 kB / 8.189 GB, free: 137.7 MB / 1.37 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 157 * Number of states: 0 () * Number of discrete variables: 15 ($whenCondition2,$whenCondition3,intWSEPri2.trigger,$PRE.tri.pulseStart,tri.pulseStart,$whenCondition1,TCon_in.a,TCon_in.b,TCon_in.last,$PRE.TCon_in.nextEvent,TCon_in.nextEvent,TCon_in.nextEventScaled,intWSEPri1.on[1],intWSEPri1.on[2],intWSEPri1.wse.heaExc.con.I.trigger_internal) * Number of discrete states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (746): * Single equations (assignments): 719 * Array equations: 10 * Algorithm blocks: 1 * Record equations: 10 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 4 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 0 * Non-linear Jacobian: 4 {1,1,1,1} * Without analytic Jacobian: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 2 {6 10,6 10} Notification: Performance of prepare postOptimizeDAE: time 0.004604/35.39, allocations: 0.5143 MB / 8.189 GB, free: 137.6 MB / 1.37 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.008436/35.4, allocations: 1.266 MB / 8.19 GB, free: 137.6 MB / 1.37 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.03789/35.44, allocations: 9.217 MB / 8.199 GB, free: 137.2 MB / 1.37 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 0.0001094/35.44, allocations: 54.62 kB / 8.199 GB, free: 137.2 MB / 1.37 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.55e-05/35.44, allocations: 0 / 8.199 GB, free: 137.2 MB / 1.37 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.02083/35.46, allocations: 6.913 MB / 8.206 GB, free: 136.8 MB / 1.37 GB Warning: The model contains alias variables with conflicting start and/or 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 0.08172/35.54, allocations: 22.1 MB / 8.228 GB, free: 135.1 MB / 1.37 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.242e-05/35.54, allocations: 3.109 kB / 8.228 GB, free: 135.1 MB / 1.37 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.007953/35.55, allocations: 1.258 MB / 8.229 GB, free: 135.1 MB / 1.37 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.00108/35.55, allocations: 346.6 kB / 8.229 GB, free: 135.1 MB / 1.37 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.00228/35.55, allocations: 164.7 kB / 8.229 GB, free: 135.1 MB / 1.37 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.002945/35.56, allocations: 4.12 MB / 8.233 GB, free: 131.7 MB / 1.37 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.22e-06/35.56, allocations: 1.938 kB / 8.233 GB, free: 131.7 MB / 1.37 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.039/35.59, allocations: 14.04 MB / 8.247 GB, free: 130 MB / 1.37 GB Notification: Performance of postOpt removeConstants (simulation): time 0.01492/35.61, allocations: 2.96 MB / 8.25 GB, free: 129 MB / 1.37 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.008233/35.62, allocations: 121 kB / 8.25 GB, free: 129 MB / 1.37 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.02026/35.64, allocations: 1.089 MB / 8.251 GB, free: 129 MB / 1.37 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.00206/35.64, allocations: 297.3 kB / 8.252 GB, free: 129 MB / 1.37 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.002074/35.64, allocations: 211.7 kB / 8.252 GB, free: 129 MB / 1.37 GB Notification: Performance of sorting global known variables: time 0.03926/35.68, allocations: 9.327 MB / 8.261 GB, free: 128.6 MB / 1.37 GB Notification: Performance of sort global known variables: time 6.82e-07/35.68, allocations: 1.594 kB / 8.261 GB, free: 128.6 MB / 1.37 GB Notification: Performance of remove unused functions: time 0.04821/35.73, allocations: 6.451 MB / 8.267 GB, free: 128.4 MB / 1.37 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 9 * Number of states: 32 (TSup1.T,intWSEPri1.chiPar.chi[1].vol1.dynBal.U,intWSEPri1.chiPar.chi[1].vol2.dynBal.U,intWSEPri1.chiPar.filter[1].x[1],intWSEPri1.chiPar.filter[1].x[2],intWSEPri1.wse.heaExc.thrWayVal.vol.dynBal.U,intWSEPri1.wse.heaExc.thrWayVal.filter.x[1],intWSEPri1.wse.heaExc.thrWayVal.filter.x[2],intWSEPri1.wse.heaExc.con.I.y,intWSEPri1.wse.filter[1].x[1],intWSEPri1.wse.filter[1].x[2],intWSEPri1.senTem.T,intWSEPri1.val5.filter.x[1],intWSEPri1.val5.filter.x[2],intWSEPri1.val6.filter.x[1],intWSEPri1.val6.filter.x[2],intWSEPri2.chiPar.chi[1].vol1.dynBal.U,intWSEPri2.chiPar.chi[1].vol2.dynBal.U,intWSEPri2.chiPar.filter[1].x[1],intWSEPri2.chiPar.filter[1].x[2],intWSEPri2.wse.heaExc.thrWayVal.vol.dynBal.U,intWSEPri2.wse.heaExc.thrWayVal.filter.x[1],intWSEPri2.wse.heaExc.thrWayVal.filter.x[2],intWSEPri2.wse.heaExc.con.I.y,intWSEPri2.wse.filter[1].x[1],intWSEPri2.wse.filter[1].x[2],intWSEPri2.senTem.T,intWSEPri2.val5.filter.x[1],intWSEPri2.val5.filter.x[2],intWSEPri2.val6.filter.x[1],intWSEPri2.val6.filter.x[2],TSup2.T) * Number of discrete variables: 12 (intWSEPri2.trigger,$whenCondition3,$whenCondition2,$whenCondition1,TCon_in.a,TCon_in.b,TCon_in.last,TCon_in.nextEvent,TCon_in.nextEventScaled,intWSEPri1.on[1],intWSEPri1.on[2],tri.pulseStart) * Number of discrete states: 6 (TCon_in.nextEvent,TCon_in.last,TCon_in.nextEventScaled,TCon_in.b,TCon_in.a,$whenCondition1) * Top-level inputs: 0 Notification: Strong component statistics for simulation (474): * Single equations (assignments): 448 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 18 * When equations: 1 * If-equations: 0 * Equation systems (linear and non-linear blocks): 4 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 0 * Non-linear Jacobian: 4 {1,1,1,1} * Without analytic Jacobian: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 2 {6 9,6 9} Notification: Performance of Backend phase and start with SimCode phase: time 0.05364/35.78, allocations: 21.77 MB / 8.288 GB, free: 122.3 MB / 1.37 GB Notification: Performance of simCode: created initialization part: time 0.03786/35.82, allocations: 15.59 MB / 8.304 GB, free: 121.1 MB / 1.37 GB Notification: Performance of simCode: created event and clocks part: time 2.18e-05/35.82, allocations: 4.438 kB / 8.304 GB, free: 121.1 MB / 1.37 GB Notification: Performance of simCode: created simulation system equations: time 0.009781/35.83, allocations: 3.924 MB / 8.307 GB, free: 121 MB / 1.37 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0457/35.88, allocations: 7.188 MB / 8.314 GB, free: 120.9 MB / 1.37 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.09148/35.97, allocations: 25.11 MB / 8.339 GB, free: 116.2 MB / 1.37 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0221/35.99, allocations: 7.292 MB / 8.346 GB, free: 115.1 MB / 1.37 GB Notification: Performance of simCode: alias equations: time 0.04274/36.03, allocations: 5.645 MB / 8.352 GB, free: 115 MB / 1.37 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.01956/36.05, allocations: 5.976 MB / 8.357 GB, free: 115 MB / 1.37 GB Notification: Performance of SimCode: time 1.583e-06/36.05, allocations: 0 / 8.357 GB, free: 115 MB / 1.37 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 3.009/39.06, allocations: 447.9 MB / 8.795 GB, free: 163.6 MB / 1.417 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0001849/39.06, allocations: 282.1 kB / 8.795 GB, free: 163.2 MB / 1.417 GB Notification: Performance of buildModelFMU: Generate platform static: time 29.05/68.11, allocations: 0 / 8.795 GB, free: 163.2 MB / 1.417 GB (rm -f Buildings_8_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.IntegratedPrimaryPlantSide.pipe ; mkfifo Buildings_8_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.IntegratedPrimaryPlantSide.pipe ; head -c 1048576 < Buildings_8_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.IntegratedPrimaryPlantSide.pipe >> ../files/Buildings_8_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.IntegratedPrimaryPlantSide.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_Buildings_8_Buildings_Applications_DataCenters_ChillerCooled_Equipment_Validation_IntegratedPrimaryPlantSide_fmu --startTime=0 --stopTime=21600 --timeout=50 --tolerance=1e-06 Buildings_8_Buildings_Applications_DataCenters_ChillerCooled_Equipment_Validation_IntegratedPrimaryPlantSide.fmu > Buildings_8_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.IntegratedPrimaryPlantSide.pipe 2>&1)