Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Modelica_3.2.2_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1.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) 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: translateModel(Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Modelica_3.2.2_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1") translateModel(Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Modelica_3.2.2_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001215/0.001215, allocations: 105.6 kB / 17.06 MB, free: 6.027 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001114/0.001114, allocations: 195 kB / 18 MB, free: 5.105 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.564/1.564, allocations: 205.1 MB / 223.9 MB, free: 12.24 MB / 190.1 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 0.001791/0.001791, allocations: 51.92 kB / 327.9 MB, free: 3.301 MB / 270.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.09327/0.09508, allocations: 46.62 MB / 374.5 MB, free: 4.57 MB / 318.1 MB Notification: Performance of NFInst.instantiate(Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1): time 0.1974/0.2925, allocations: 30.98 MB / 405.5 MB, free: 9.344 MB / 334.1 MB Notification: Performance of NFInst.instExpressions: time 0.01943/0.312, allocations: 14.27 MB / 419.7 MB, free: 14.64 MB / 350.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.001636/0.3137, allocations: 41.59 kB / 419.8 MB, free: 14.62 MB / 350.1 MB Notification: Performance of NFTyping.typeComponents: time 0.001623/0.3154, allocations: 0.58 MB / 420.4 MB, free: 14.11 MB / 350.1 MB Notification: Performance of NFTyping.typeBindings: time 0.005542/0.3209, allocations: 2.169 MB / 422.5 MB, free: 12.46 MB / 350.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.01054/0.3315, allocations: 3.679 MB / 426.2 MB, free: 9.965 MB / 350.1 MB Notification: Performance of NFFlatten.flatten: time 0.006447/0.3379, allocations: 3.961 MB / 430.2 MB, free: 7.73 MB / 350.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.001689/0.3397, allocations: 1.02 MB / 431.2 MB, free: 6.863 MB / 350.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.00286/0.3425, allocations: 1.491 MB / 432.7 MB, free: 5.367 MB / 350.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.002347/0.3449, allocations: 1.522 MB / 434.2 MB, free: 3.84 MB / 350.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0002987/0.3452, allocations: 144 kB / 434.3 MB, free: 3.699 MB / 350.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.004731/0.35, allocations: 2.316 MB / 436.7 MB, free: 1.379 MB / 350.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0007418/0.3507, allocations: 0.5454 MB / 437.2 MB, free: 0.832 MB / 350.1 MB Notification: Performance of NFVerifyModel.verify: time 0.001072/0.3518, allocations: 0.8282 MB / 438 MB, free: 0 / 350.1 MB Notification: Performance of NFConvertDAE.convert: time 0.006658/0.3585, allocations: 3.596 MB / 441.6 MB, free: 12.39 MB / 366.1 MB Notification: Performance of FrontEnd - DAE generated: time 4.088e-06/0.3585, allocations: 0 / 441.6 MB, free: 12.39 MB / 366.1 MB Notification: Performance of FrontEnd: time 1.784e-06/0.3585, allocations: 0 / 441.6 MB, free: 12.39 MB / 366.1 MB Notification: Performance of Transformations before backend: time 3.696e-05/0.3585, allocations: 0 / 441.6 MB, free: 12.39 MB / 366.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 256 * Number of variables: 256 Notification: Performance of Generate backend data structure: time 0.004558/0.3631, allocations: 2.11 MB / 443.7 MB, free: 10.23 MB / 366.1 MB Notification: Performance of prepare preOptimizeDAE: time 3.717e-05/0.3632, allocations: 8.031 kB / 443.7 MB, free: 10.22 MB / 366.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0005612/0.3637, allocations: 170.2 kB / 443.9 MB, free: 10.05 MB / 366.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001732/0.3655, allocations: 1.018 MB / 444.9 MB, free: 8.988 MB / 366.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 7.283e-05/0.3656, allocations: 82.59 kB / 445 MB, free: 8.91 MB / 366.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001546/0.3657, allocations: 91.98 kB / 445.1 MB, free: 8.82 MB / 366.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002463/0.3682, allocations: 1.632 MB / 446.7 MB, free: 7.105 MB / 366.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 2.739e-05/0.3682, allocations: 3.938 kB / 446.7 MB, free: 7.102 MB / 366.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001252/0.3684, allocations: 43.97 kB / 446.8 MB, free: 7.059 MB / 366.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001321/0.3685, allocations: 101.9 kB / 446.9 MB, free: 6.957 MB / 366.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002543/0.371, allocations: 1.647 MB / 448.5 MB, free: 5.312 MB / 366.1 MB 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 0.009912/0.381, allocations: 6.647 MB / 455.2 MB, free: 14.27 MB / 382.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.001564/0.3826, allocations: 0.9347 MB / 456.1 MB, free: 13.32 MB / 382.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0008364/0.3834, allocations: 0.5582 MB / 456.7 MB, free: 12.76 MB / 382.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.004006/0.3874, allocations: 2.805 MB / 459.5 MB, free: 9.703 MB / 382.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.788e-05/0.3875, allocations: 47.2 kB / 459.5 MB, free: 9.648 MB / 382.1 MB Notification: Performance of pre-optimization done (n=80): time 2.194e-06/0.3875, allocations: 3.938 kB / 459.5 MB, free: 9.645 MB / 382.1 MB Notification: Performance of matching and sorting (n=90): time 0.00838/0.3959, allocations: 3.697 MB / 463.2 MB, free: 5.832 MB / 382.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001182/0.396, allocations: 192.9 kB / 463.4 MB, free: 5.602 MB / 382.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001694/0.3977, allocations: 1.314 MB / 464.7 MB, free: 4.27 MB / 382.1 MB Notification: Performance of collectPreVariables (initialization): time 0.0001003/0.3978, allocations: 49.7 kB / 464.8 MB, free: 4.215 MB / 382.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0004842/0.3983, allocations: 0.6472 MB / 465.4 MB, free: 3.559 MB / 382.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0002698/0.3986, allocations: 323.5 kB / 465.7 MB, free: 3.238 MB / 382.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004282/0.399, allocations: 283.3 kB / 466 MB, free: 2.957 MB / 382.1 MB Notification: Performance of setup shared object (initialization): time 0.0001014/0.3991, allocations: 305.1 kB / 466.3 MB, free: 2.656 MB / 382.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0009453/0.4001, allocations: 0.5942 MB / 466.9 MB, free: 2.059 MB / 382.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001264/0.4014, allocations: 1.001 MB / 467.9 MB, free: 0.8828 MB / 382.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.002062/0.4034, allocations: 1.481 MB / 469.4 MB, free: 15.24 MB / 398.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.623e-06/0.4035, allocations: 4 kB / 469.4 MB, free: 15.23 MB / 398.1 MB Notification: Performance of matching and sorting (n=180) (initialization): time 0.003152/0.4066, allocations: 1.897 MB / 471.3 MB, free: 13.32 MB / 398.1 MB Notification: Performance of prepare postOptimizeDAE: time 2.158e-05/0.4067, allocations: 12 kB / 471.3 MB, free: 13.31 MB / 398.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.841e-05/0.4067, allocations: 16.06 kB / 471.3 MB, free: 13.3 MB / 398.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.004701/0.4114, allocations: 0.7632 MB / 472.1 MB, free: 12.52 MB / 398.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001233/0.4126, allocations: 279.6 kB / 472.3 MB, free: 12.25 MB / 398.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002064/0.4147, allocations: 2.164 MB / 474.5 MB, free: 10.01 MB / 398.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001332/0.4161, allocations: 75.89 kB / 474.6 MB, free: 9.934 MB / 398.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001691/0.4163, allocations: 68.2 kB / 474.7 MB, free: 9.867 MB / 398.1 MB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001422/0.4177, allocations: 0.8434 MB / 475.5 MB, free: 9.02 MB / 398.1 MB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.001225/0.4189, allocations: 0.9929 MB / 476.5 MB, free: 7.84 MB / 398.1 MB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001976/0.4209, allocations: 1.461 MB / 477.9 MB, free: 6.207 MB / 398.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 8.496e-06/0.4209, allocations: 4 kB / 478 MB, free: 6.203 MB / 398.1 MB Notification: Performance of matching and sorting (n=180) (initialization_lambda0): time 0.00334/0.4243, allocations: 1.83 MB / 479.8 MB, free: 4.355 MB / 398.1 MB Notification: Performance of prepare postOptimizeDAE: time 1.88e-05/0.4243, allocations: 12 kB / 479.8 MB, free: 4.344 MB / 398.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.82e-05/0.4243, allocations: 12 kB / 479.8 MB, free: 4.332 MB / 398.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.003914/0.4283, allocations: 0.5882 MB / 480.4 MB, free: 3.734 MB / 398.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001155/0.4294, allocations: 295.5 kB / 480.7 MB, free: 3.445 MB / 398.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001847/0.4313, allocations: 2.023 MB / 482.7 MB, free: 1.348 MB / 398.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001369/0.4327, allocations: 76.14 kB / 482.8 MB, free: 1.273 MB / 398.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001515/0.4329, allocations: 71.97 kB / 482.8 MB, free: 1.203 MB / 398.1 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 53 * Number of states: 0 () * Number of discrete variables: 12 (tank2.aboveLevel[2],$PRE.tank2.aboveLevel[2],tank2.aboveLevel[1],$PRE.tank2.aboveLevel[1],tank1.aboveLevel[2],$PRE.tank1.aboveLevel[2],tank1.aboveLevel[1],$PRE.tank1.aboveLevel[1],tank2.ports_m_flow_out[2],tank2.ports_m_flow_out[1],tank1.ports_m_flow_out[2],tank1.ports_m_flow_out[1]) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (166): * Single equations (assignments): 163 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 3 systems {(1,3), (2,7), (1,3)} Notification: Performance of prepare postOptimizeDAE: time 0.0005116/0.4334, allocations: 280 kB / 483.1 MB, free: 0.9219 MB / 398.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002828/0.4337, allocations: 138.3 kB / 483.3 MB, free: 0.7852 MB / 398.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.003044/0.4367, allocations: 1.529 MB / 484.8 MB, free: 15.24 MB / 414.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.266e-05/0.4367, allocations: 8 kB / 484.8 MB, free: 15.23 MB / 414.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.109e-05/0.4368, allocations: 7.875 kB / 484.8 MB, free: 15.23 MB / 414.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.073e-05/0.4368, allocations: 3.984 kB / 484.8 MB, free: 15.22 MB / 414.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.004728/0.4415, allocations: 2.805 MB / 487.6 MB, free: 12.33 MB / 414.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.404e-06/0.4415, allocations: 1.125 kB / 487.6 MB, free: 12.33 MB / 414.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0006746/0.4422, allocations: 155.8 kB / 487.8 MB, free: 12.18 MB / 414.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.002642/0.4449, allocations: 0.5763 MB / 488.3 MB, free: 11.59 MB / 414.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 8.371e-05/0.445, allocations: 23.98 kB / 488.4 MB, free: 11.57 MB / 414.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001795/0.4468, allocations: 2.118 MB / 490.5 MB, free: 9.371 MB / 414.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.535e-06/0.4468, allocations: 0 / 490.5 MB, free: 9.371 MB / 414.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003279/0.4501, allocations: 2.104 MB / 492.6 MB, free: 7.227 MB / 414.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0004184/0.4505, allocations: 211.3 kB / 492.8 MB, free: 7 MB / 414.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001978/0.4507, allocations: 39.86 kB / 492.8 MB, free: 6.961 MB / 414.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0007567/0.4515, allocations: 48.84 kB / 492.9 MB, free: 6.914 MB / 414.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001862/0.4517, allocations: 92.86 kB / 493 MB, free: 6.824 MB / 414.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 8.642e-05/0.4518, allocations: 35.98 kB / 493 MB, free: 6.789 MB / 414.1 MB Notification: Performance of sorting global known variables: time 0.001174/0.453, allocations: 0.9044 MB / 493.9 MB, free: 5.883 MB / 414.1 MB Notification: Performance of sort global known variables: time 1.11e-07/0.453, allocations: 0 / 493.9 MB, free: 5.883 MB / 414.1 MB Notification: Performance of remove unused functions: time 0.00268/0.4556, allocations: 1.113 MB / 495 MB, free: 4.77 MB / 414.1 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * Number of states: 4 (tank1.level,tank1.medium.T,tank2.level,tank2.medium.T) * Number of discrete variables: 4 (tank1.aboveLevel[1],tank1.aboveLevel[2],tank2.aboveLevel[1],tank2.aboveLevel[2]) * Number of discrete states: 4 (tank1.aboveLevel[1],tank1.aboveLevel[2],tank2.aboveLevel[1],tank2.aboveLevel[2]) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (84): * Single equations (assignments): 81 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 3 systems {(2,12), (1,6), (1,6)} Notification: Performance of Backend phase and start with SimCode phase: time 0.00182/0.4575, allocations: 0.8326 MB / 495.9 MB, free: 3.934 MB / 414.1 MB Notification: Performance of simCode: created initialization part: time 0.004353/0.4618, allocations: 2.292 MB / 498.1 MB, free: 1.648 MB / 414.1 MB Notification: Performance of simCode: created event and clocks part: time 5.71e-06/0.4619, allocations: 0 / 498.1 MB, free: 1.648 MB / 414.1 MB Notification: Performance of simCode: created simulation system equations: time 0.001263/0.4631, allocations: 0.6932 MB / 498.8 MB, free: 0.9531 MB / 414.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002819/0.466, allocations: 0.6285 MB / 499.5 MB, free: 332 kB / 414.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.004053/0.47, allocations: 2.705 MB / 0.4904 GB, free: 13.58 MB / 430.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.000797/0.4709, allocations: 1.259 MB / 0.4916 GB, free: 12.29 MB / 430.1 MB Notification: Performance of simCode: alias equations: time 0.001664/0.4725, allocations: 0.5745 MB / 0.4922 GB, free: 11.71 MB / 430.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.000315/0.4729, allocations: 119.4 kB / 0.4923 GB, free: 11.59 MB / 430.1 MB Notification: Performance of SimCode: time 6.51e-07/0.4729, allocations: 0 / 0.4923 GB, free: 11.59 MB / 430.1 MB Notification: Performance of Templates: time 0.05991/0.5328, allocations: 40.95 MB / 0.5323 GB, free: 2.559 MB / 462.1 MB make -j1 -f Modelica_3.2.2_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1.makefile (rm -f Modelica_3.2.2_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1.pipe ; mkfifo Modelica_3.2.2_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1.pipe ; head -c 1048576 < Modelica_3.2.2_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1.pipe >> ../files/Modelica_3.2.2_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1.sim & ./Modelica_3.2.2_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1 -abortSlowSimulation -alarm=480 -lv LOG_STATS > Modelica_3.2.2_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1.pipe 2>&1)