Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr ModelicaTest_3.2.1_ModelicaTest.Fluid.TestComponents.Fittings.TestJunctionVolume.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/ModelicaTest 3.2.1+maint.om/package.mo", uses=false) Using package ModelicaTest with version 3.2.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 3.2.1+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 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(ModelicaTest.Fluid.TestComponents.Fittings.TestJunctionVolume,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="ModelicaTest_3.2.1_ModelicaTest.Fluid.TestComponents.Fittings.TestJunctionVolume") translateModel(ModelicaTest.Fluid.TestComponents.Fittings.TestJunctionVolume,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="ModelicaTest_3.2.1_ModelicaTest.Fluid.TestComponents.Fittings.TestJunctionVolume") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001327/0.001327, allocations: 111.3 kB / 15.23 MB, free: 0.6406 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001493/0.001494, allocations: 194.6 kB / 16.14 MB, free: 6.703 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.693/1.693, allocations: 205.1 MB / 222 MB, free: 4.742 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 3.2.1+maint.om/package.mo): time 0.3416/0.3416, allocations: 37.99 MB / 307.3 MB, free: 10.1 MB / 254.1 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: ModelicaTest requested package Modelica of version 3.2.1. Modelica 3.2.3 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.001915/0.001915, allocations: 66.41 kB / 374.6 MB, free: 15.62 MB / 318.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1587/0.1606, allocations: 56.47 MB / 431 MB, free: 7.047 MB / 366.1 MB Notification: Performance of NFInst.instantiate(ModelicaTest.Fluid.TestComponents.Fittings.TestJunctionVolume): time 0.5447/0.7054, allocations: 208.9 MB / 0.625 GB, free: 6.961 MB / 494.1 MB Notification: Performance of NFInst.instExpressions: time 0.4488/1.154, allocations: 14.29 MB / 0.6389 GB, free: 1.59 MB / 494.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.00281/1.157, allocations: 49.47 kB / 0.639 GB, free: 1.59 MB / 494.1 MB Notification: Performance of NFTyping.typeComponents: time 0.001578/1.159, allocations: 404.3 kB / 0.6394 GB, free: 1.59 MB / 494.1 MB Notification: Performance of NFTyping.typeBindings: time 0.009659/1.169, allocations: 2.799 MB / 0.6421 GB, free: 1.555 MB / 494.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.009169/1.178, allocations: 2.852 MB / 0.6449 GB, free: 1.523 MB / 494.1 MB Notification: Performance of NFFlatten.flatten: time 0.006697/1.184, allocations: 4.649 MB / 0.6494 GB, free: 1.523 MB / 494.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.00182/1.186, allocations: 0.664 MB / 0.6501 GB, free: 1.469 MB / 494.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.003975/1.19, allocations: 1.09 MB / 0.6511 GB, free: 1.465 MB / 494.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.003819/1.194, allocations: 1.318 MB / 0.6524 GB, free: 1.461 MB / 494.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0003417/1.195, allocations: 61.84 kB / 0.6525 GB, free: 1.461 MB / 494.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.009287/1.204, allocations: 3.105 MB / 0.6555 GB, free: 1.438 MB / 494.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0009458/1.205, allocations: 376.8 kB / 0.6559 GB, free: 1.438 MB / 494.1 MB Notification: Performance of NFVerifyModel.verify: time 0.001549/1.206, allocations: 0.5981 MB / 0.6565 GB, free: 1.438 MB / 494.1 MB Notification: Performance of NFConvertDAE.convert: time 0.01088/1.217, allocations: 3.661 MB / 0.66 GB, free: 1.234 MB / 494.1 MB Notification: Performance of FrontEnd - DAE generated: time 6.312e-06/1.217, allocations: 0 / 0.66 GB, free: 1.234 MB / 494.1 MB Notification: Performance of FrontEnd: time 1.633e-06/1.217, allocations: 2.344 kB / 0.66 GB, free: 1.234 MB / 494.1 MB Notification: Performance of Transformations before backend: time 1.997e-05/1.217, allocations: 1.25 kB / 0.66 GB, free: 1.234 MB / 494.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 192 * Number of variables: 192 Notification: Performance of Generate backend data structure: time 0.00649/1.224, allocations: 1.978 MB / 0.662 GB, free: 16.23 MB / 0.4981 GB Notification: Performance of prepare preOptimizeDAE: time 5.818e-05/1.224, allocations: 13.34 kB / 0.662 GB, free: 16.23 MB / 0.4981 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001526/1.225, allocations: 213.9 kB / 0.6622 GB, free: 16.17 MB / 0.4981 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001526/1.227, allocations: 0.7946 MB / 0.663 GB, free: 15.85 MB / 0.4981 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 7.569e-05/1.227, allocations: 58.61 kB / 0.663 GB, free: 15.85 MB / 0.4981 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001616/1.227, allocations: 76.31 kB / 0.6631 GB, free: 15.84 MB / 0.4981 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002379/1.23, allocations: 1.243 MB / 0.6643 GB, free: 15.66 MB / 0.4981 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.584e-05/1.23, allocations: 0 / 0.6643 GB, free: 15.66 MB / 0.4981 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001193/1.23, allocations: 38.94 kB / 0.6643 GB, free: 15.66 MB / 0.4981 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001613/1.23, allocations: 80.06 kB / 0.6644 GB, free: 15.65 MB / 0.4981 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.00254/1.233, allocations: 1.206 MB / 0.6656 GB, free: 15.65 MB / 0.4981 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 0.008475/1.241, allocations: 4.871 MB / 0.6703 GB, free: 13.38 MB / 0.4981 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001366/1.242, allocations: 0.7479 MB / 0.6711 GB, free: 13.36 MB / 0.4981 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0006284/1.243, allocations: 395.5 kB / 0.6715 GB, free: 13.34 MB / 0.4981 GB Notification: Performance of preOpt evalFunc (simulation): time 0.001481/1.245, allocations: 1.296 MB / 0.6727 GB, free: 12.21 MB / 0.4981 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 7.097e-05/1.245, allocations: 42.22 kB / 0.6728 GB, free: 12.17 MB / 0.4981 GB Notification: Performance of pre-optimization done (n=68): time 5.24e-06/1.245, allocations: 0 / 0.6728 GB, free: 12.17 MB / 0.4981 GB Notification: Performance of matching and sorting (n=73): time 0.009217/1.254, allocations: 2.786 MB / 0.6755 GB, free: 11.57 MB / 0.4981 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001398/1.254, allocations: 217.7 kB / 0.6757 GB, free: 11.32 MB / 0.4981 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001519/1.256, allocations: 0.9459 MB / 0.6766 GB, free: 11.16 MB / 0.4981 GB Notification: Performance of collectPreVariables (initialization): time 9.491e-05/1.256, allocations: 40.52 kB / 0.6766 GB, free: 11.13 MB / 0.4981 GB Notification: Performance of collectInitialEqns (initialization): time 0.0003793/1.256, allocations: 482.4 kB / 0.6771 GB, free: 10.93 MB / 0.4981 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002411/1.256, allocations: 259.5 kB / 0.6774 GB, free: 10.77 MB / 0.4981 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003682/1.257, allocations: 227.5 kB / 0.6776 GB, free: 10.75 MB / 0.4981 GB Notification: Performance of setup shared object (initialization): time 0.0001665/1.257, allocations: 342 kB / 0.6779 GB, free: 10.44 MB / 0.4981 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0008312/1.258, allocations: 447.5 kB / 0.6783 GB, free: 10.43 MB / 0.4981 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001152/1.259, allocations: 0.6772 MB / 0.679 GB, free: 10.16 MB / 0.4981 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001882/1.261, allocations: 1.082 MB / 0.68 GB, free: 9.91 MB / 0.4981 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 7.875e-06/1.261, allocations: 3.781 kB / 0.68 GB, free: 9.91 MB / 0.4981 GB Notification: Performance of matching and sorting (n=120) (initialization): time 0.002932/1.264, allocations: 1.48 MB / 0.6815 GB, free: 9.793 MB / 0.4981 GB Notification: Performance of prepare postOptimizeDAE: time 2.983e-05/1.264, allocations: 8.031 kB / 0.6815 GB, free: 9.793 MB / 0.4981 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.472e-05/1.264, allocations: 8.844 kB / 0.6815 GB, free: 9.789 MB / 0.4981 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.003669/1.267, allocations: 0.7332 MB / 0.6822 GB, free: 9.77 MB / 0.4981 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006402/1.268, allocations: 181.9 kB / 0.6824 GB, free: 9.77 MB / 0.4981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001695/1.27, allocations: 1.286 MB / 0.6837 GB, free: 9.223 MB / 0.4981 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001181/1.271, allocations: 71.73 kB / 0.6837 GB, free: 9.215 MB / 0.4981 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001532/1.271, allocations: 92.14 kB / 0.6838 GB, free: 9.215 MB / 0.4981 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001159/1.272, allocations: 0.6088 MB / 0.6844 GB, free: 9.086 MB / 0.4981 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0008938/1.273, allocations: 0.6633 MB / 0.6851 GB, free: 8.711 MB / 0.4981 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001607/1.275, allocations: 1.029 MB / 0.6861 GB, free: 8.355 MB / 0.4981 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 6.582e-06/1.275, allocations: 2.25 kB / 0.6861 GB, free: 8.355 MB / 0.4981 GB Notification: Performance of matching and sorting (n=120) (initialization_lambda0): time 0.002562/1.277, allocations: 1.325 MB / 0.6874 GB, free: 8.113 MB / 0.4981 GB Notification: Performance of prepare postOptimizeDAE: time 2.662e-05/1.277, allocations: 16.02 kB / 0.6874 GB, free: 8.105 MB / 0.4981 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.057e-06/1.277, allocations: 11.91 kB / 0.6874 GB, free: 8.102 MB / 0.4981 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001543/1.279, allocations: 366 kB / 0.6877 GB, free: 8.004 MB / 0.4981 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006857/1.28, allocations: 207.6 kB / 0.6879 GB, free: 7.977 MB / 0.4981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001074/1.281, allocations: 0.9804 MB / 0.6889 GB, free: 7.387 MB / 0.4981 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00109/1.282, allocations: 77.12 kB / 0.689 GB, free: 7.363 MB / 0.4981 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001509/1.282, allocations: 89.25 kB / 0.689 GB, free: 7.359 MB / 0.4981 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 28 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (91): * Single equations (assignments): 90 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * 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): 1 system {(2,28)} Notification: Performance of prepare postOptimizeDAE: time 0.0004564/1.283, allocations: 238.1 kB / 0.6893 GB, free: 7.176 MB / 0.4981 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002795/1.283, allocations: 118.7 kB / 0.6894 GB, free: 7.113 MB / 0.4981 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.003039/1.286, allocations: 1.365 MB / 0.6907 GB, free: 6.734 MB / 0.4981 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.786e-06/1.286, allocations: 7.219 kB / 0.6907 GB, free: 6.734 MB / 0.4981 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 7.755e-06/1.286, allocations: 2.625 kB / 0.6907 GB, free: 6.734 MB / 0.4981 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 8.336e-06/1.286, allocations: 7.984 kB / 0.6907 GB, free: 6.727 MB / 0.4981 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.00354/1.289, allocations: 2.161 MB / 0.6928 GB, free: 5.824 MB / 0.4981 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.659e-06/1.289, allocations: 0 / 0.6928 GB, free: 5.824 MB / 0.4981 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.000765/1.29, allocations: 174 kB / 0.693 GB, free: 5.668 MB / 0.4981 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0001003/1.29, allocations: 27.34 kB / 0.693 GB, free: 5.641 MB / 0.4981 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 7.283e-05/1.29, allocations: 36.86 kB / 0.6931 GB, free: 5.617 MB / 0.4981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001004/1.291, allocations: 1.284 MB / 0.6943 GB, free: 4.266 MB / 0.4981 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.675e-06/1.291, allocations: 0 / 0.6943 GB, free: 4.266 MB / 0.4981 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.00265/1.294, allocations: 1.615 MB / 0.6959 GB, free: 3.105 MB / 0.4981 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0003988/1.295, allocations: 175 kB / 0.6961 GB, free: 2.922 MB / 0.4981 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001792/1.295, allocations: 25.55 kB / 0.6961 GB, free: 2.91 MB / 0.4981 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0007009/1.295, allocations: 56.11 kB / 0.6961 GB, free: 2.867 MB / 0.4981 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001556/1.296, allocations: 64.12 kB / 0.6962 GB, free: 2.812 MB / 0.4981 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001255/1.296, allocations: 75.03 kB / 0.6963 GB, free: 2.746 MB / 0.4981 GB Notification: Performance of sorting global known variables: time 0.000927/1.297, allocations: 0.6638 MB / 0.6969 GB, free: 2.246 MB / 0.4981 GB Notification: Performance of sort global known variables: time 1.3e-07/1.297, allocations: 0 / 0.6969 GB, free: 2.246 MB / 0.4981 GB Notification: Performance of remove unused functions: time 0.004289/1.301, allocations: 1.081 MB / 0.698 GB, free: 1.227 MB / 0.4981 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 7 * Number of states: 2 (junction.medium.p,junction.medium.T) * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (74): * Single equations (assignments): 73 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(1,1,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.003614/1.305, allocations: 0.9957 MB / 0.699 GB, free: 348 kB / 0.4981 GB Notification: Performance of simCode: created initialization part: time 0.003235/1.308, allocations: 1.633 MB / 0.7006 GB, free: 15.21 MB / 0.5137 GB Notification: Performance of simCode: created event and clocks part: time 6.913e-06/1.308, allocations: 0 / 0.7006 GB, free: 15.21 MB / 0.5137 GB Notification: Performance of simCode: created simulation system equations: time 0.0009411/1.309, allocations: 0.5711 MB / 0.7011 GB, free: 14.79 MB / 0.5137 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002942/1.312, allocations: 0.5971 MB / 0.7017 GB, free: 14.3 MB / 0.5137 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003647/1.315, allocations: 2.35 MB / 0.704 GB, free: 12.15 MB / 0.5137 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005839/1.316, allocations: 1.078 MB / 0.705 GB, free: 11.07 MB / 0.5137 GB Notification: Performance of simCode: alias equations: time 0.002488/1.319, allocations: 0.5945 MB / 0.7056 GB, free: 10.47 MB / 0.5137 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0005662/1.319, allocations: 167.8 kB / 0.7058 GB, free: 10.32 MB / 0.5137 GB Notification: Performance of SimCode: time 2.274e-06/1.319, allocations: 0 / 0.7058 GB, free: 10.32 MB / 0.5137 GB Notification: Performance of Templates: time 0.05967/1.379, allocations: 37.66 MB / 0.7426 GB, free: 4.902 MB / 0.545 GB make -j1 -f ModelicaTest_3.2.1_ModelicaTest.Fluid.TestComponents.Fittings.TestJunctionVolume.makefile (rm -f ModelicaTest_3.2.1_ModelicaTest.Fluid.TestComponents.Fittings.TestJunctionVolume.pipe ; mkfifo ModelicaTest_3.2.1_ModelicaTest.Fluid.TestComponents.Fittings.TestJunctionVolume.pipe ; head -c 1048576 < ModelicaTest_3.2.1_ModelicaTest.Fluid.TestComponents.Fittings.TestJunctionVolume.pipe >> ../files/ModelicaTest_3.2.1_ModelicaTest.Fluid.TestComponents.Fittings.TestJunctionVolume.sim & ./ModelicaTest_3.2.1_ModelicaTest.Fluid.TestComponents.Fittings.TestJunctionVolume -abortSlowSimulation -alarm=480 -lv LOG_STATS > ModelicaTest_3.2.1_ModelicaTest.Fluid.TestComponents.Fittings.TestJunctionVolume.pipe 2>&1)