Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ThermoPower_ThermoPower.Test.GasComponents.TestCC.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/ThermoPower 3.1.0-master/package.mo", uses=false) Using package ThermoPower with version 3.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoPower 3.1.0-master/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(ThermoPower.Test.GasComponents.TestCC,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="ThermoPower_ThermoPower.Test.GasComponents.TestCC") translateModel(ThermoPower.Test.GasComponents.TestCC,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="ThermoPower_ThermoPower.Test.GasComponents.TestCC") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001356/0.001356, allocations: 109.9 kB / 17.74 MB, free: 5.359 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001092/0.001092, allocations: 193.5 kB / 18.67 MB, free: 4.434 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.567/1.567, allocations: 205.1 MB / 224.5 MB, free: 12.25 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoPower 3.1.0-master/package.mo): time 0.3162/0.3162, allocations: 48.84 MB / 320.7 MB, free: 11.02 MB / 270.1 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 0.001682/0.001682, allocations: 67.89 kB / 451.2 MB, free: 8.582 MB / 334.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1286/0.1303, allocations: 59.16 MB / 0.4984 GB, free: 13.29 MB / 398.1 MB Notification: Performance of NFInst.instantiate(ThermoPower.Test.GasComponents.TestCC): time 0.5114/0.6417, allocations: 212.1 MB / 0.7055 GB, free: 6.004 MB / 0.545 GB Notification: Performance of NFInst.instExpressions: time 0.004101/0.6459, allocations: 2.077 MB / 0.7076 GB, free: 3.922 MB / 0.545 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0006741/0.6466, allocations: 15.94 kB / 0.7076 GB, free: 3.906 MB / 0.545 GB Notification: Performance of NFTyping.typeComponents: time 0.001363/0.648, allocations: 0.497 MB / 0.7081 GB, free: 3.406 MB / 0.545 GB Notification: Performance of NFTyping.typeBindings: time 0.001507/0.6495, allocations: 0.6682 MB / 0.7087 GB, free: 2.734 MB / 0.545 GB Notification: Performance of NFTyping.typeClassSections: time 0.002952/0.6525, allocations: 1.139 MB / 0.7098 GB, free: 1.598 MB / 0.545 GB Notification: Performance of NFFlatten.flatten: time 0.002841/0.6553, allocations: 2.258 MB / 0.712 GB, free: 15.33 MB / 0.5606 GB Notification: Performance of NFFlatten.resolveConnections: time 0.00145/0.6568, allocations: 0.9236 MB / 0.7129 GB, free: 14.41 MB / 0.5606 GB Notification: Performance of NFEvalConstants.evaluate: time 0.001828/0.6587, allocations: 0.9176 MB / 0.7138 GB, free: 13.49 MB / 0.5606 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001096/0.6598, allocations: 0.7124 MB / 0.7145 GB, free: 12.77 MB / 0.5606 GB Notification: Performance of NFPackage.collectConstants: time 0.000256/0.66, allocations: 112 kB / 0.7146 GB, free: 12.66 MB / 0.5606 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002154/0.6622, allocations: 0.8729 MB / 0.7155 GB, free: 11.79 MB / 0.5606 GB Notification: Performance of NFScalarize.scalarize: time 0.0006078/0.6628, allocations: 0.6743 MB / 0.7161 GB, free: 11.11 MB / 0.5606 GB Notification: Performance of NFVerifyModel.verify: time 0.001001/0.6638, allocations: 0.8017 MB / 0.7169 GB, free: 10.31 MB / 0.5606 GB Notification: Performance of NFConvertDAE.convert: time 0.002913/0.6667, allocations: 2.248 MB / 0.7191 GB, free: 8.055 MB / 0.5606 GB Notification: Performance of FrontEnd - DAE generated: time 5.691e-06/0.6668, allocations: 4 kB / 0.7191 GB, free: 8.051 MB / 0.5606 GB Notification: Performance of FrontEnd: time 2.555e-06/0.6668, allocations: 0 / 0.7191 GB, free: 8.051 MB / 0.5606 GB Notification: Performance of Transformations before backend: time 2.578e-05/0.6668, allocations: 0 / 0.7191 GB, free: 8.051 MB / 0.5606 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 289 * Number of variables: 289 Notification: Performance of Generate backend data structure: time 0.002768/0.6696, allocations: 1.541 MB / 0.7206 GB, free: 6.457 MB / 0.5606 GB Notification: Performance of prepare preOptimizeDAE: time 4.384e-05/0.6696, allocations: 15.89 kB / 0.7206 GB, free: 6.441 MB / 0.5606 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001148/0.6708, allocations: 250.4 kB / 0.7209 GB, free: 6.195 MB / 0.5606 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001242/0.6721, allocations: 0.6404 MB / 0.7215 GB, free: 5.516 MB / 0.5606 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 6.2e-05/0.6721, allocations: 86.23 kB / 0.7216 GB, free: 5.43 MB / 0.5606 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001763/0.6723, allocations: 123.9 kB / 0.7217 GB, free: 5.309 MB / 0.5606 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002452/0.6748, allocations: 1.579 MB / 0.7233 GB, free: 3.66 MB / 0.5606 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.151e-05/0.6748, allocations: 0 / 0.7233 GB, free: 3.66 MB / 0.5606 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001657/0.675, allocations: 62.12 kB / 0.7233 GB, free: 3.602 MB / 0.5606 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.882e-05/0.675, allocations: 42.2 kB / 0.7234 GB, free: 3.559 MB / 0.5606 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001839/0.6769, allocations: 1.191 MB / 0.7245 GB, free: 2.359 MB / 0.5606 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 0.008792/0.6857, allocations: 6.486 MB / 0.7309 GB, free: 11.22 MB / 0.5762 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001093/0.6868, allocations: 0.5414 MB / 0.7314 GB, free: 10.68 MB / 0.5762 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0005363/0.6874, allocations: 362.4 kB / 0.7317 GB, free: 10.32 MB / 0.5762 GB Notification: Performance of preOpt evalFunc (simulation): time 4.99e-05/0.6874, allocations: 12.55 kB / 0.7317 GB, free: 10.31 MB / 0.5762 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.264e-05/0.6875, allocations: 55.12 kB / 0.7318 GB, free: 10.25 MB / 0.5762 GB Notification: Performance of pre-optimization done (n=58): time 2.926e-06/0.6875, allocations: 0 / 0.7318 GB, free: 10.25 MB / 0.5762 GB Notification: Performance of matching and sorting (n=69): time 0.01148/0.699, allocations: 3.793 MB / 0.7355 GB, free: 6.344 MB / 0.5762 GB Notification: Performance of inlineWhenForInitialization (initialization): time 8.847e-05/0.6991, allocations: 111.4 kB / 0.7356 GB, free: 6.211 MB / 0.5762 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001269/0.7004, allocations: 0.8991 MB / 0.7365 GB, free: 5.305 MB / 0.5762 GB Notification: Performance of collectPreVariables (initialization): time 0.0001719/0.7006, allocations: 49.7 kB / 0.7365 GB, free: 5.25 MB / 0.5762 GB Notification: Performance of collectInitialEqns (initialization): time 0.0003789/0.701, allocations: 475.4 kB / 0.737 GB, free: 4.777 MB / 0.5762 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002538/0.7012, allocations: 252.4 kB / 0.7372 GB, free: 4.527 MB / 0.5762 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003298/0.7016, allocations: 158.6 kB / 0.7374 GB, free: 4.363 MB / 0.5762 GB Notification: Performance of setup shared object (initialization): time 0.0001454/0.7017, allocations: 341.9 kB / 0.7377 GB, free: 4.023 MB / 0.5762 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0007366/0.7024, allocations: 456.6 kB / 0.7381 GB, free: 3.574 MB / 0.5762 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0008465/0.7033, allocations: 0.5928 MB / 0.7387 GB, free: 2.926 MB / 0.5762 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001519/0.7048, allocations: 1.036 MB / 0.7397 GB, free: 1.84 MB / 0.5762 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.229e-06/0.7049, allocations: 0 / 0.7397 GB, free: 1.84 MB / 0.5762 GB Notification: Performance of matching and sorting (n=99) (initialization): time 0.002989/0.7078, allocations: 1.567 MB / 0.7413 GB, free: 264 kB / 0.5762 GB Notification: Performance of prepare postOptimizeDAE: time 2.167e-05/0.7079, allocations: 4 kB / 0.7413 GB, free: 260 kB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.313e-05/0.7079, allocations: 8.344 kB / 0.7413 GB, free: 252 kB / 0.5762 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.003381/0.7113, allocations: 0.8756 MB / 0.7421 GB, free: 15.37 MB / 0.5919 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005698/0.7119, allocations: 115.8 kB / 0.7422 GB, free: 15.25 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.00262/0.7145, allocations: 2.168 MB / 0.7443 GB, free: 13.03 MB / 0.5919 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0008408/0.7154, allocations: 35.97 kB / 0.7444 GB, free: 12.99 MB / 0.5919 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001096/0.7155, allocations: 44 kB / 0.7444 GB, free: 12.95 MB / 0.5919 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001054/0.7166, allocations: 0.6814 MB / 0.7451 GB, free: 12.27 MB / 0.5919 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0007795/0.7174, allocations: 0.5904 MB / 0.7457 GB, free: 11.61 MB / 0.5919 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001424/0.7188, allocations: 1.021 MB / 0.7467 GB, free: 10.54 MB / 0.5919 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 6.813e-06/0.7188, allocations: 0 / 0.7467 GB, free: 10.54 MB / 0.5919 GB Notification: Performance of matching and sorting (n=99) (initialization_lambda0): time 0.003045/0.7219, allocations: 1.535 MB / 0.7482 GB, free: 8.988 MB / 0.5919 GB Notification: Performance of prepare postOptimizeDAE: time 1.873e-05/0.7219, allocations: 4 kB / 0.7482 GB, free: 8.984 MB / 0.5919 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.867e-06/0.7219, allocations: 8 kB / 0.7482 GB, free: 8.977 MB / 0.5919 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.002093/0.724, allocations: 0.6536 MB / 0.7488 GB, free: 8.32 MB / 0.5919 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006786/0.7247, allocations: 139.8 kB / 0.7489 GB, free: 8.184 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002495/0.7272, allocations: 2.536 MB / 0.7514 GB, free: 5.574 MB / 0.5919 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0008731/0.7281, allocations: 35.97 kB / 0.7515 GB, free: 5.539 MB / 0.5919 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001218/0.7282, allocations: 44 kB / 0.7515 GB, free: 5.496 MB / 0.5919 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 17 * 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 (65): * Single equations (assignments): 63 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 1 * 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): 1 system {1} * Without analytic Jacobian (size): 0 systems 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 {(9,26)} Notification: Performance of prepare postOptimizeDAE: time 0.000407/0.7287, allocations: 236.2 kB / 0.7517 GB, free: 5.258 MB / 0.5919 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0003454/0.729, allocations: 103 kB / 0.7518 GB, free: 5.156 MB / 0.5919 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.00247/0.7315, allocations: 1.265 MB / 0.7531 GB, free: 3.867 MB / 0.5919 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.767e-06/0.7315, allocations: 4 kB / 0.7531 GB, free: 3.863 MB / 0.5919 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.083e-05/0.7315, allocations: 7.984 kB / 0.7531 GB, free: 3.855 MB / 0.5919 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 7.244e-06/0.7315, allocations: 0 / 0.7531 GB, free: 3.855 MB / 0.5919 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.003739/0.7353, allocations: 2.319 MB / 0.7553 GB, free: 1.461 MB / 0.5919 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.923e-06/0.7353, allocations: 4 kB / 0.7553 GB, free: 1.457 MB / 0.5919 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001053/0.7364, allocations: 191.9 kB / 0.7555 GB, free: 1.27 MB / 0.5919 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.001092/0.7375, allocations: 285.5 kB / 0.7558 GB, free: 0.9844 MB / 0.5919 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001097/0.7376, allocations: 27.98 kB / 0.7558 GB, free: 0.957 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.2682/1.006, allocations: 2.912 MB / 0.7587 GB, free: 217.3 MB / 0.5919 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.137e-06/1.006, allocations: 4.75 kB / 0.7587 GB, free: 217.3 MB / 0.5919 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002802/1.009, allocations: 1.677 MB / 0.7603 GB, free: 217.1 MB / 0.5919 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0003574/1.009, allocations: 182.2 kB / 0.7605 GB, free: 217 MB / 0.5919 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001727/1.009, allocations: 27.09 kB / 0.7605 GB, free: 217 MB / 0.5919 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001054/1.01, allocations: 57.8 kB / 0.7606 GB, free: 217 MB / 0.5919 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001697/1.011, allocations: 62 kB / 0.7606 GB, free: 217 MB / 0.5919 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001335/1.011, allocations: 70.67 kB / 0.7607 GB, free: 217 MB / 0.5919 GB Notification: Performance of sorting global known variables: time 0.0008804/1.012, allocations: 0.6385 MB / 0.7613 GB, free: 216.9 MB / 0.5919 GB Notification: Performance of sort global known variables: time 2.1e-07/1.012, allocations: 0 / 0.7613 GB, free: 216.9 MB / 0.5919 GB Notification: Performance of remove unused functions: time 0.00195/1.013, allocations: 0.6325 MB / 0.7619 GB, free: 216.9 MB / 0.5919 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * Number of states: 7 (CombustionChamber1.fluegas.p,CombustionChamber1.fluegas.Xi[1],CombustionChamber1.fluegas.Xi[2],CombustionChamber1.fluegas.Xi[3],CombustionChamber1.fluegas.Xi[4],CombustionChamber1.fluegas.Xi[5],CombustionChamber1.fluegas.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 (63): * Single equations (assignments): 60 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 2 * 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): 1 system {1} * Without analytic Jacobian (size): 0 systems 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): 1 system {(2,11)} Notification: Performance of Backend phase and start with SimCode phase: time 0.001648/1.015, allocations: 0.5656 MB / 0.7625 GB, free: 216.8 MB / 0.5919 GB Notification: Performance of simCode: created initialization part: time 0.004205/1.019, allocations: 1.942 MB / 0.7644 GB, free: 216.7 MB / 0.5919 GB Notification: Performance of simCode: created event and clocks part: time 1.232e-05/1.019, allocations: 8.844 kB / 0.7644 GB, free: 216.7 MB / 0.5919 GB Notification: Performance of simCode: created simulation system equations: time 0.001191/1.021, allocations: 0.6991 MB / 0.7651 GB, free: 216.4 MB / 0.5919 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002918/1.024, allocations: 0.651 MB / 0.7657 GB, free: 216.3 MB / 0.5919 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003907/1.027, allocations: 2.466 MB / 0.7681 GB, free: 215.1 MB / 0.5919 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0007141/1.028, allocations: 1.102 MB / 0.7692 GB, free: 214.4 MB / 0.5919 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0003219/1.028, allocations: 90.58 kB / 0.7693 GB, free: 214.4 MB / 0.5919 GB Notification: Performance of SimCode: time 6.91e-07/1.029, allocations: 0 / 0.7693 GB, free: 214.4 MB / 0.5919 GB Notification: Performance of Templates: time 0.04361/1.072, allocations: 31.49 MB / 0.8 GB, free: 198.6 MB / 0.5919 GB make -j1 -f ThermoPower_ThermoPower.Test.GasComponents.TestCC.makefile (rm -f ThermoPower_ThermoPower.Test.GasComponents.TestCC.pipe ; mkfifo ThermoPower_ThermoPower.Test.GasComponents.TestCC.pipe ; head -c 1048576 < ThermoPower_ThermoPower.Test.GasComponents.TestCC.pipe >> ../files/ThermoPower_ThermoPower.Test.GasComponents.TestCC.sim & ./ThermoPower_ThermoPower.Test.GasComponents.TestCC -abortSlowSimulation -alarm=480 -lv LOG_STATS > ThermoPower_ThermoPower.Test.GasComponents.TestCC.pipe 2>&1)