Running: ./testmodel.py --libraries=/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_latest_Buildings.Obsolete.Examples.VAVReheat.Validation.VAVBranch.conf.json loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Buildings 9.0.0-master/package.mo", uses=false) loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false) loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) Using package ModelicaServices with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Using package Modelica with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo) Using package Complex with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo) Using package Buildings with version 9.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Buildings 9.0.0-master/package.mo) Running command: translateModel(Buildings.Obsolete.Examples.VAVReheat.Validation.VAVBranch,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_latest_Buildings.Obsolete.Examples.VAVReheat.Validation.VAVBranch") translateModel(Buildings.Obsolete.Examples.VAVReheat.Validation.VAVBranch,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_latest_Buildings.Obsolete.Examples.VAVReheat.Validation.VAVBranch") Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Buildings 9.0.0-master/package.mo): time 1.68/1.68, allocations: 306.1 MB / 321.4 MB, free: 10.77 MB / 250.7 MB Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001033/0.001033, allocations: 184.1 kB / 393.1 MB, free: 4.098 MB / 314.7 MB Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.355/1.355, allocations: 225.7 MB / 0.6743 GB, free: 12.61 MB / 0.4948 GB Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0007613/0.0007613, allocations: 102 kB / 0.7935 GB, free: 40.01 MB / 0.5417 GB Notification: Performance of FrontEnd - loaded program: time 0.0003374/0.0003375, allocations: 8 kB / 0.9224 GB, free: 8.664 MB / 0.6355 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.6013/0.6017, allocations: 121.3 MB / 1.041 GB, free: 58.49 MB / 0.698 GB Notification: Performance of NFInst.instantiate(Buildings.Obsolete.Examples.VAVReheat.Validation.VAVBranch): time 0.2246/0.8263, allocations: 207.7 MB / 1.244 GB, free: 4.277 MB / 0.8073 GB Notification: Performance of NFInst.instExpressions: time 0.02242/0.8487, allocations: 17.98 MB / 1.261 GB, free: 0.9531 MB / 0.823 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0022/0.851, allocations: 43.69 kB / 1.261 GB, free: 0.9102 MB / 0.823 GB Notification: Performance of NFTyping.typeComponents: time 0.002495/0.8535, allocations: 0.7187 MB / 1.262 GB, free: 192 kB / 0.823 GB Notification: Performance of NFTyping.typeBindings: time 0.006721/0.8603, allocations: 2.297 MB / 1.264 GB, free: 13.88 MB / 0.8386 GB Notification: Performance of NFTyping.typeClassSections: time 0.006315/0.8666, allocations: 2.162 MB / 1.266 GB, free: 11.73 MB / 0.8386 GB Notification: Performance of NFFlatten.flatten: time 0.006445/0.8731, allocations: 5.063 MB / 1.271 GB, free: 6.652 MB / 0.8386 GB Notification: Performance of NFFlatten.resolveConnections: time 0.00234/0.8754, allocations: 1.216 MB / 1.272 GB, free: 5.402 MB / 0.8386 GB Notification: Performance of NFEvalConstants.evaluate: time 0.005546/0.881, allocations: 2.195 MB / 1.275 GB, free: 3.199 MB / 0.8386 GB Notification: Performance of NFSimplifyModel.simplify: time 0.00417/0.8852, allocations: 1.484 MB / 1.276 GB, free: 1.711 MB / 0.8386 GB Notification: Performance of NFPackage.collectConstants: time 0.0009593/0.8862, allocations: 92 kB / 1.276 GB, free: 1.621 MB / 0.8386 GB Notification: Performance of NFFlatten.collectFunctions: time 0.006644/0.8928, allocations: 2.99 MB / 1.279 GB, free: 14.62 MB / 0.8542 GB Notification: Performance of NFScalarize.scalarize: time 0.001047/0.8939, allocations: 0.5371 MB / 1.28 GB, free: 14.09 MB / 0.8542 GB Notification: Performance of NFVerifyModel.verify: time 0.002108/0.896, allocations: 1.008 MB / 1.281 GB, free: 13.07 MB / 0.8542 GB Notification: Performance of NFConvertDAE.convert: time 0.007681/0.9037, allocations: 4.623 MB / 1.285 GB, free: 8.43 MB / 0.8542 GB Notification: Performance of FrontEnd - DAE generated: time 7.033e-06/0.9037, allocations: 0 / 1.285 GB, free: 8.43 MB / 0.8542 GB Notification: Performance of FrontEnd: time 1.994e-06/0.9038, allocations: 0 / 1.285 GB, free: 8.43 MB / 0.8542 GB Notification: Performance of Transformations before backend: time 9.779e-05/0.9039, allocations: 0 / 1.285 GB, free: 8.43 MB / 0.8542 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 250 * Number of variables: 250 Notification: Performance of Generate backend data structure: time 0.006881/0.9107, allocations: 2.339 MB / 1.287 GB, free: 6.031 MB / 0.8542 GB Notification: Performance of prepare preOptimizeDAE: time 4.31e-05/0.9108, allocations: 8.031 kB / 1.287 GB, free: 6.023 MB / 0.8542 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002831/0.9136, allocations: 0.5207 MB / 1.288 GB, free: 5.5 MB / 0.8542 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.003995/0.9177, allocations: 1.91 MB / 1.29 GB, free: 3.543 MB / 0.8542 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0007021/0.9184, allocations: 218.4 kB / 1.29 GB, free: 3.328 MB / 0.8542 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0004146/0.9188, allocations: 112 kB / 1.29 GB, free: 3.219 MB / 0.8542 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.003441/0.9223, allocations: 1.582 MB / 1.292 GB, free: 1.582 MB / 0.8542 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.787e-05/0.9223, allocations: 11.94 kB / 1.292 GB, free: 1.57 MB / 0.8542 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001201/0.9224, allocations: 36 kB / 1.292 GB, free: 1.535 MB / 0.8542 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 6.379e-05/0.9225, allocations: 49.98 kB / 1.292 GB, free: 1.484 MB / 0.8542 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.004049/0.9266, allocations: 1.745 MB / 1.293 GB, free: 15.74 MB / 0.8698 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 0.01372/0.9403, allocations: 7.589 MB / 1.301 GB, free: 7.789 MB / 0.8698 GB Notification: Performance of preOpt comSubExp (simulation): time 0.003271/0.9436, allocations: 1.405 MB / 1.302 GB, free: 6.355 MB / 0.8698 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.00149/0.9451, allocations: 0.6958 MB / 1.303 GB, free: 5.652 MB / 0.8698 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0009084/0.9461, allocations: 0.7278 MB / 1.304 GB, free: 4.777 MB / 0.8698 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.212e-05/0.9461, allocations: 43.12 kB / 1.304 GB, free: 4.727 MB / 0.8698 GB Notification: Performance of pre-optimization done (n=70): time 2.826e-06/0.9461, allocations: 0 / 1.304 GB, free: 4.727 MB / 0.8698 GB Notification: Performance of matching and sorting (n=70): time 0.005349/0.9515, allocations: 2.07 MB / 1.306 GB, free: 2.652 MB / 0.8698 GB Notification: Performance of inlineWhenForInitialization (initialization): time 8.74e-05/0.9516, allocations: 111.4 kB / 1.306 GB, free: 2.52 MB / 0.8698 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003725/0.9553, allocations: 2.072 MB / 1.308 GB, free: 460 kB / 0.8698 GB Notification: Performance of collectPreVariables (initialization): time 0.0003489/0.9557, allocations: 53.64 kB / 1.308 GB, free: 400 kB / 0.8698 GB Notification: Performance of collectInitialEqns (initialization): time 0.0008577/0.9566, allocations: 0.7013 MB / 1.308 GB, free: 15.68 MB / 0.8855 GB Notification: Performance of collectInitialBindings (initialization): time 0.0003144/0.9569, allocations: 240.4 kB / 1.309 GB, free: 15.44 MB / 0.8855 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002084/0.9571, allocations: 20 kB / 1.309 GB, free: 15.42 MB / 0.8855 GB Notification: Performance of setup shared object (initialization): time 0.0001865/0.9573, allocations: 365.9 kB / 1.309 GB, free: 15.06 MB / 0.8855 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.002926/0.9603, allocations: 1.397 MB / 1.31 GB, free: 13.66 MB / 0.8855 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.00326/0.9635, allocations: 1.771 MB / 1.312 GB, free: 11.75 MB / 0.8855 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.004543/0.9681, allocations: 2.303 MB / 1.314 GB, free: 9.359 MB / 0.8855 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.042e-05/0.9681, allocations: 4 kB / 1.314 GB, free: 9.355 MB / 0.8855 GB Notification: Performance of matching and sorting (n=172) (initialization): time 0.00664/0.9748, allocations: 3.093 MB / 1.317 GB, free: 6.254 MB / 0.8855 GB Notification: Performance of prepare postOptimizeDAE: time 0.0002671/0.9751, allocations: 301.8 kB / 1.318 GB, free: 5.855 MB / 0.8855 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.534e-05/0.9751, allocations: 8 kB / 1.318 GB, free: 5.848 MB / 0.8855 GB Notification: Performance of postOpt tearingSystem (initialization): time 3.138e-05/0.9751, allocations: 15.94 kB / 1.318 GB, free: 5.832 MB / 0.8855 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002182/0.9773, allocations: 339.5 kB / 1.318 GB, free: 5.5 MB / 0.8855 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.628e-05/0.9774, allocations: 19.94 kB / 1.318 GB, free: 5.48 MB / 0.8855 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002453/0.9798, allocations: 305.9 kB / 1.318 GB, free: 5.18 MB / 0.8855 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001896/0.98, allocations: 55.97 kB / 1.318 GB, free: 5.125 MB / 0.8855 GB Notification: Performance of prepare postOptimizeDAE: time 1.089e-05/0.9801, allocations: 4 kB / 1.318 GB, free: 5.121 MB / 0.8855 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.005596/0.9857, allocations: 2.922 MB / 1.321 GB, free: 2.199 MB / 0.8855 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.678e-05/0.9857, allocations: 8 kB / 1.321 GB, free: 2.191 MB / 0.8855 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.524e-05/0.9858, allocations: 12 kB / 1.321 GB, free: 2.18 MB / 0.8855 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001716/0.9875, allocations: 335.9 kB / 1.322 GB, free: 1.852 MB / 0.8855 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.993e-05/0.9875, allocations: 23.91 kB / 1.322 GB, free: 1.828 MB / 0.8855 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002093/0.9896, allocations: 275.5 kB / 1.322 GB, free: 1.559 MB / 0.8855 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001942/0.9898, allocations: 55.97 kB / 1.322 GB, free: 1.504 MB / 0.8855 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 31 * Number of states: 0 () * Number of discrete variables: 15 (vavBra.terHea.flowRegime,vavBra.vav.idx_sorted[1],vavBra.vav.idx_sorted[2],vavBra.vav.idx_sorted[3],vavBra.vav.idx_sorted[4],vavBra.vav.idx_sorted[5],vavBra.vav.idx_sorted[6],vavBra.vav.idx_sorted[7],vavBra.vav.idx_sorted[8],vavBra.vav.idx_sorted[9],vavBra.vav.idx_sorted[10],vavBra.vav.idx_sorted[11],vavBra.vav.idx_sorted[12],vavBra.vav.idx_sorted[13],vavBra.terHea.flowRegime_nominal) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (135): * Single equations (assignments): 133 * Array equations: 1 * Algorithm blocks: 0 * Record equations: 1 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.001002/0.9908, allocations: 0.522 MB / 1.323 GB, free: 0.9727 MB / 0.8855 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0004347/0.9913, allocations: 165.8 kB / 1.323 GB, free: 0.8086 MB / 0.8855 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.4022/1.393, allocations: 1.602 MB / 1.324 GB, free: 237.4 MB / 0.8855 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.09e-05/1.394, allocations: 8.406 kB / 1.324 GB, free: 237.4 MB / 0.8855 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 9.468e-06/1.394, allocations: 1.625 kB / 1.324 GB, free: 237.4 MB / 0.8855 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.308e-05/1.394, allocations: 4.344 kB / 1.324 GB, free: 237.4 MB / 0.8855 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.007239/1.401, allocations: 3.52 MB / 1.328 GB, free: 235.9 MB / 0.8855 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 9.157e-06/1.401, allocations: 2.234 kB / 1.328 GB, free: 235.9 MB / 0.8855 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001141/1.402, allocations: 224.5 kB / 1.328 GB, free: 235.9 MB / 0.8855 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.243e-05/1.402, allocations: 5.938 kB / 1.328 GB, free: 235.9 MB / 0.8855 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 8.415e-05/1.402, allocations: 23.67 kB / 1.328 GB, free: 235.9 MB / 0.8855 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.156e-05/1.402, allocations: 5.219 kB / 1.328 GB, free: 235.9 MB / 0.8855 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.087e-06/1.402, allocations: 4.328 kB / 1.328 GB, free: 235.9 MB / 0.8855 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.005392/1.408, allocations: 2.558 MB / 1.33 GB, free: 235 MB / 0.8855 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0008118/1.408, allocations: 453 kB / 1.331 GB, free: 234.8 MB / 0.8855 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002297/1.409, allocations: 24.11 kB / 1.331 GB, free: 234.8 MB / 0.8855 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001383/1.41, allocations: 143.3 kB / 1.331 GB, free: 234.8 MB / 0.8855 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000148/1.41, allocations: 62.17 kB / 1.331 GB, free: 234.8 MB / 0.8855 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 9.589e-05/1.41, allocations: 38.39 kB / 1.331 GB, free: 234.8 MB / 0.8855 GB Notification: Performance of sorting global known variables: time 0.002207/1.412, allocations: 1.428 MB / 1.333 GB, free: 234.2 MB / 0.8855 GB Notification: Performance of sort global known variables: time 3.1e-07/1.412, allocations: 2.844 kB / 1.333 GB, free: 234.2 MB / 0.8855 GB Notification: Performance of remove unused functions: time 0.002848/1.415, allocations: 0.9978 MB / 1.333 GB, free: 234.1 MB / 0.8855 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 10 * Number of states: 2 (vavBra.vav.filter.s[1],vavBra.vav.filter.s[2]) * Number of discrete variables: 1 (vavBra.terHea.flowRegime) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (78): * Single equations (assignments): 76 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 2 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.00121/1.417, allocations: 0.5779 MB / 1.334 GB, free: 234 MB / 0.8855 GB Notification: Performance of simCode: created initialization part: time 0.007046/1.424, allocations: 4.082 MB / 1.338 GB, free: 232.6 MB / 0.8855 GB Notification: Performance of simCode: created event and clocks part: time 1.081e-05/1.424, allocations: 1.844 kB / 1.338 GB, free: 232.6 MB / 0.8855 GB Notification: Performance of simCode: created simulation system equations: time 0.001768/1.425, allocations: 0.7367 MB / 1.339 GB, free: 232.4 MB / 0.8855 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.00414/1.43, allocations: 0.668 MB / 1.339 GB, free: 232.3 MB / 0.8855 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.005055/1.435, allocations: 3.604 MB / 1.343 GB, free: 230.4 MB / 0.8855 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0006628/1.435, allocations: 1.305 MB / 1.344 GB, free: 229.6 MB / 0.8855 GB Notification: Performance of simCode: alias equations: time 0.002517/1.438, allocations: 0.5336 MB / 1.345 GB, free: 229.4 MB / 0.8855 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0005657/1.438, allocations: 132.7 kB / 1.345 GB, free: 229.4 MB / 0.8855 GB Notification: Performance of SimCode: time 5.91e-07/1.438, allocations: 2.297 kB / 1.345 GB, free: 229.4 MB / 0.8855 GB Notification: Performance of Templates: time 0.06509/1.504, allocations: 38.84 MB / 1.383 GB, free: 225 MB / 0.8855 GB make -j1 -f Buildings_latest_Buildings.Obsolete.Examples.VAVReheat.Validation.VAVBranch.makefile (rm -f Buildings_latest_Buildings.Obsolete.Examples.VAVReheat.Validation.VAVBranch.pipe ; mkfifo Buildings_latest_Buildings.Obsolete.Examples.VAVReheat.Validation.VAVBranch.pipe ; head -c 1048576 < Buildings_latest_Buildings.Obsolete.Examples.VAVReheat.Validation.VAVBranch.pipe >> ../files/Buildings_latest_Buildings.Obsolete.Examples.VAVReheat.Validation.VAVBranch.sim & ./Buildings_latest_Buildings.Obsolete.Examples.VAVReheat.Validation.VAVBranch -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_latest_Buildings.Obsolete.Examples.VAVReheat.Validation.VAVBranch.pipe 2>&1)