Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr IDEAS_IDEAS.Fluid.Movers.Examples.SpeedControlled_y_pumpCurves.conf.json 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/IDEAS 3.0.0/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Using package Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo) Using package IDEAS with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/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) Running command: translateModel(IDEAS.Fluid.Movers.Examples.SpeedControlled_y_pumpCurves,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IDEAS_IDEAS.Fluid.Movers.Examples.SpeedControlled_y_pumpCurves") translateModel(IDEAS.Fluid.Movers.Examples.SpeedControlled_y_pumpCurves,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IDEAS_IDEAS.Fluid.Movers.Examples.SpeedControlled_y_pumpCurves") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001498/0.001498, allocations: 182.4 kB / 15.98 MB, free: 5.766 MB / 13.93 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/package.mo): time 0.719/0.719, allocations: 132.2 MB / 148.9 MB, free: 12.14 MB / 122.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.5/1.5, allocations: 222.9 MB / 403.3 MB, free: 7.07 MB / 314.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001359/0.001359, allocations: 110 kB / 484.3 MB, free: 8.691 MB / 394.7 MB Notification: Performance of FrontEnd - loaded program: time 0.001049/0.001049, allocations: 59.86 kB / 0.5618 GB, free: 71.04 MB / 426.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1201/0.1212, allocations: 80.21 MB / 0.6402 GB, free: 6.766 MB / 442.7 MB Notification: Performance of NFInst.instantiate(IDEAS.Fluid.Movers.Examples.SpeedControlled_y_pumpCurves): time 0.3588/0.4801, allocations: 104.2 MB / 0.7419 GB, free: 1.41 MB / 490.7 MB Notification: Performance of NFInst.instExpressions: time 0.04436/0.5245, allocations: 32.98 MB / 0.7741 GB, free: 8.242 MB / 0.5105 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.006694/0.5312, allocations: 140.9 kB / 0.7743 GB, free: 8.188 MB / 0.5105 GB Notification: Performance of NFTyping.typeComponents: time 0.0057/0.537, allocations: 1.679 MB / 0.7759 GB, free: 6.832 MB / 0.5105 GB Notification: Performance of NFTyping.typeBindings: time 0.01311/0.5501, allocations: 4.641 MB / 0.7804 GB, free: 3.148 MB / 0.5105 GB Notification: Performance of NFTyping.typeClassSections: time 0.009759/0.5599, allocations: 3.516 MB / 0.7839 GB, free: 268 kB / 0.5105 GB Notification: Performance of NFFlatten.flatten: time 0.0184/0.5783, allocations: 12.73 MB / 0.7963 GB, free: 3.5 MB / 0.5261 GB Notification: Performance of NFFlatten.resolveConnections: time 0.007261/0.5856, allocations: 3.024 MB / 0.7993 GB, free: 420 kB / 0.5261 GB Notification: Performance of NFEvalConstants.evaluate: time 0.01002/0.5957, allocations: 3.512 MB / 0.8027 GB, free: 12.88 MB / 0.5417 GB Notification: Performance of NFSimplifyModel.simplify: time 0.006194/0.6019, allocations: 3.096 MB / 0.8057 GB, free: 9.773 MB / 0.5417 GB Notification: Performance of NFPackage.collectConstants: time 0.001565/0.6035, allocations: 212 kB / 0.8059 GB, free: 9.566 MB / 0.5417 GB Notification: Performance of NFFlatten.collectFunctions: time 0.007084/0.6106, allocations: 2.409 MB / 0.8083 GB, free: 7.152 MB / 0.5417 GB Notification: Performance of NFScalarize.scalarize: time 0.002049/0.6127, allocations: 1.14 MB / 0.8094 GB, free: 6.008 MB / 0.5417 GB Notification: Performance of NFVerifyModel.verify: time 0.004377/0.6171, allocations: 2.156 MB / 0.8115 GB, free: 3.84 MB / 0.5417 GB Notification: Performance of NFConvertDAE.convert: time 0.01298/0.6301, allocations: 7.224 MB / 0.8185 GB, free: 12.59 MB / 0.5573 GB Notification: Performance of FrontEnd - DAE generated: time 5.36e-06/0.6301, allocations: 0 / 0.8185 GB, free: 12.59 MB / 0.5573 GB Notification: Performance of FrontEnd: time 1.463e-06/0.6301, allocations: 0 / 0.8185 GB, free: 12.59 MB / 0.5573 GB Notification: Performance of Transformations before backend: time 0.0002177/0.6304, allocations: 0 / 0.8185 GB, free: 12.59 MB / 0.5573 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 529 * Number of variables: 529 Notification: Performance of Generate backend data structure: time 0.01282/0.6432, allocations: 5.099 MB / 0.8235 GB, free: 7.414 MB / 0.5573 GB Notification: Performance of prepare preOptimizeDAE: time 4.449e-05/0.6433, allocations: 16.03 kB / 0.8235 GB, free: 7.398 MB / 0.5573 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.006092/0.6493, allocations: 1.17 MB / 0.8247 GB, free: 6.223 MB / 0.5573 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.009602/0.659, allocations: 4.299 MB / 0.8289 GB, free: 1.836 MB / 0.5573 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001871/0.6592, allocations: 185.2 kB / 0.8291 GB, free: 1.652 MB / 0.5573 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0005768/0.6598, allocations: 240 kB / 0.8293 GB, free: 1.418 MB / 0.5573 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.004836/0.6646, allocations: 2.731 MB / 0.8319 GB, free: 14.57 MB / 0.573 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.376e-05/0.6647, allocations: 3.938 kB / 0.832 GB, free: 14.56 MB / 0.573 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0002064/0.6649, allocations: 87.94 kB / 0.832 GB, free: 14.48 MB / 0.573 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.008e-05/0.665, allocations: 55.98 kB / 0.8321 GB, free: 14.42 MB / 0.573 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.004745/0.6697, allocations: 1.995 MB / 0.834 GB, free: 12.43 MB / 0.573 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 0.01726/0.687, allocations: 12.41 MB / 0.8462 GB, free: 15.16 MB / 0.5886 GB Notification: Performance of preOpt comSubExp (simulation): time 0.003589/0.6906, allocations: 1.607 MB / 0.8477 GB, free: 13.54 MB / 0.5886 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001681/0.6923, allocations: 0.7377 MB / 0.8484 GB, free: 12.8 MB / 0.5886 GB Notification: Performance of preOpt evalFunc (simulation): time 0.00754/0.6999, allocations: 4.081 MB / 0.8524 GB, free: 8.395 MB / 0.5886 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.65e-05/0.6999, allocations: 47.56 kB / 0.8525 GB, free: 8.34 MB / 0.5886 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.001636/0.7016, allocations: 194.4 kB / 0.8527 GB, free: 8.148 MB / 0.5886 GB Notification: Performance of pre-optimization done (n=111): time 4.428e-06/0.7016, allocations: 0 / 0.8527 GB, free: 8.148 MB / 0.5886 GB Notification: Performance of matching and sorting (n=111): time 0.009128/0.7107, allocations: 3.115 MB / 0.8557 GB, free: 4.938 MB / 0.5886 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.395e-05/0.7108, allocations: 68.34 kB / 0.8558 GB, free: 4.855 MB / 0.5886 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.004667/0.7155, allocations: 3.432 MB / 0.8591 GB, free: 1.406 MB / 0.5886 GB Notification: Performance of collectPreVariables (initialization): time 0.0003149/0.7158, allocations: 53.7 kB / 0.8592 GB, free: 1.348 MB / 0.5886 GB Notification: Performance of collectInitialEqns (initialization): time 0.001334/0.7172, allocations: 1.773 MB / 0.8609 GB, free: 15.56 MB / 0.6042 GB Notification: Performance of collectInitialBindings (initialization): time 0.0004195/0.7176, allocations: 390.4 kB / 0.8613 GB, free: 15.18 MB / 0.6042 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0006763/0.7183, allocations: 471.2 kB / 0.8617 GB, free: 14.71 MB / 0.6042 GB Notification: Performance of setup shared object (initialization): time 8.622e-05/0.7184, allocations: 313.1 kB / 0.862 GB, free: 14.4 MB / 0.6042 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.002369/0.7208, allocations: 1.211 MB / 0.8632 GB, free: 13.18 MB / 0.6042 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.002907/0.7237, allocations: 1.909 MB / 0.8651 GB, free: 10.96 MB / 0.6042 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.005002/0.7287, allocations: 3.01 MB / 0.868 GB, free: 7.699 MB / 0.6042 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.06e-05/0.7287, allocations: 4 kB / 0.868 GB, free: 7.695 MB / 0.6042 GB Notification: Performance of matching and sorting (n=243) (initialization): time 0.00724/0.736, allocations: 3.831 MB / 0.8718 GB, free: 3.84 MB / 0.6042 GB Notification: Performance of prepare postOptimizeDAE: time 2.856e-05/0.736, allocations: 19.98 kB / 0.8718 GB, free: 3.82 MB / 0.6042 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.558e-05/0.7361, allocations: 16 kB / 0.8718 GB, free: 3.805 MB / 0.6042 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001812/0.7379, allocations: 0.7296 MB / 0.8725 GB, free: 3.062 MB / 0.6042 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001829/0.7397, allocations: 435.3 kB / 0.8729 GB, free: 2.637 MB / 0.6042 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002186/0.7419, allocations: 2.752 MB / 0.8756 GB, free: 15.78 MB / 0.6198 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002806/0.7447, allocations: 207.8 kB / 0.8758 GB, free: 15.58 MB / 0.6198 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003244/0.7451, allocations: 151.9 kB / 0.8759 GB, free: 15.43 MB / 0.6198 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.003351/0.7484, allocations: 1.691 MB / 0.8776 GB, free: 13.73 MB / 0.6198 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.002522/0.751, allocations: 1.711 MB / 0.8793 GB, free: 11.71 MB / 0.6198 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.004248/0.7552, allocations: 2.633 MB / 0.8818 GB, free: 8.828 MB / 0.6198 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.459e-05/0.7553, allocations: 8 kB / 0.8818 GB, free: 8.82 MB / 0.6198 GB Notification: Performance of matching and sorting (n=243) (initialization_lambda0): time 0.007804/0.7631, allocations: 3.52 MB / 0.8853 GB, free: 5.281 MB / 0.6198 GB Notification: Performance of prepare postOptimizeDAE: time 2.376e-05/0.7631, allocations: 16.88 kB / 0.8853 GB, free: 5.266 MB / 0.6198 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.473e-05/0.7632, allocations: 20 kB / 0.8853 GB, free: 5.246 MB / 0.6198 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.00266/0.7658, allocations: 0.859 MB / 0.8862 GB, free: 4.375 MB / 0.6198 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001627/0.7675, allocations: 411.3 kB / 0.8866 GB, free: 3.973 MB / 0.6198 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01683/0.7843, allocations: 12.48 MB / 0.8987 GB, free: 6.832 MB / 0.6355 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002699/0.7871, allocations: 204.1 kB / 0.8989 GB, free: 6.633 MB / 0.6355 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.000366/0.7874, allocations: 139.9 kB / 0.8991 GB, free: 6.496 MB / 0.6355 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 81 * 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 (207): * Single equations (assignments): 199 * Array equations: 4 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 4 * 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): 4 systems {(1,4), (1,4), (1,4), (1,4)} Notification: Performance of prepare postOptimizeDAE: time 0.0006032/0.7881, allocations: 303.6 kB / 0.8994 GB, free: 6.191 MB / 0.6355 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.000771/0.7888, allocations: 359.3 kB / 0.8997 GB, free: 5.836 MB / 0.6355 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.006558/0.7954, allocations: 2.695 MB / 0.9023 GB, free: 3.117 MB / 0.6355 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.462e-05/0.7955, allocations: 27.98 kB / 0.9024 GB, free: 3.09 MB / 0.6355 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.092e-06/0.7955, allocations: 0 / 0.9024 GB, free: 3.09 MB / 0.6355 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.412e-05/0.7955, allocations: 11.91 kB / 0.9024 GB, free: 3.078 MB / 0.6355 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 postOpt removeSimpleEquations (simulation): time 0.01066/0.8062, allocations: 4.915 MB / 0.9072 GB, free: 14.07 MB / 0.6511 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.113e-06/0.8062, allocations: 0 / 0.9072 GB, free: 14.07 MB / 0.6511 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001224/0.8074, allocations: 243.8 kB / 0.9074 GB, free: 13.83 MB / 0.6511 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0009573/0.8084, allocations: 398.9 kB / 0.9078 GB, free: 13.43 MB / 0.6511 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001117/0.8085, allocations: 47.95 kB / 0.9078 GB, free: 13.38 MB / 0.6511 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001764/0.8103, allocations: 2.619 MB / 0.9104 GB, free: 10.66 MB / 0.6511 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.124e-06/0.8103, allocations: 0 / 0.9104 GB, free: 10.66 MB / 0.6511 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.009757/0.8201, allocations: 4.627 MB / 0.9149 GB, free: 5.934 MB / 0.6511 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001803/0.8219, allocations: 0.5936 MB / 0.9155 GB, free: 5.316 MB / 0.6511 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0007881/0.8227, allocations: 24 kB / 0.9155 GB, free: 5.293 MB / 0.6511 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002129/0.8249, allocations: 191.6 kB / 0.9157 GB, free: 5.105 MB / 0.6511 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000169/0.8251, allocations: 85.19 kB / 0.9158 GB, free: 5.023 MB / 0.6511 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.00015/0.8252, allocations: 67.94 kB / 0.9158 GB, free: 4.957 MB / 0.6511 GB Notification: Performance of sorting global known variables: time 0.003615/0.8289, allocations: 2.29 MB / 0.9181 GB, free: 2.664 MB / 0.6511 GB Notification: Performance of sort global known variables: time 1.4e-07/0.8289, allocations: 0 / 0.9181 GB, free: 2.664 MB / 0.6511 GB Notification: Performance of remove unused functions: time 0.00585/0.8347, allocations: 1.852 MB / 0.9199 GB, free: 0.8086 MB / 0.6511 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * 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 simulation (117): * Single equations (assignments): 103 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 10 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 4 * 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): 4 systems {(1,5), (1,5), (1,5), (1,5)} Notification: Performance of Backend phase and start with SimCode phase: time 0.001657/0.8364, allocations: 0.7213 MB / 0.9206 GB, free: 84 kB / 0.6511 GB Notification: Performance of simCode: created initialization part: time 0.00949/0.8459, allocations: 4.537 MB / 0.925 GB, free: 11.5 MB / 0.6667 GB Notification: Performance of simCode: created event and clocks part: time 5.06e-06/0.8459, allocations: 0 / 0.925 GB, free: 11.5 MB / 0.6667 GB Notification: Performance of simCode: created simulation system equations: time 0.00227/0.8482, allocations: 0.902 MB / 0.9259 GB, free: 10.6 MB / 0.6667 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.008917/0.8571, allocations: 1.71 MB / 0.9276 GB, free: 8.906 MB / 0.6667 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01202/0.8692, allocations: 8.004 MB / 0.9354 GB, free: 0.8438 MB / 0.6667 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002574/0.8718, allocations: 2.297 MB / 0.9376 GB, free: 14.52 MB / 0.6823 GB Notification: Performance of simCode: alias equations: time 0.004304/0.8761, allocations: 0.8809 MB / 0.9385 GB, free: 13.63 MB / 0.6823 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0008732/0.877, allocations: 275.3 kB / 0.9387 GB, free: 13.36 MB / 0.6823 GB Notification: Performance of SimCode: time 1.162e-06/0.877, allocations: 3.938 kB / 0.9387 GB, free: 13.36 MB / 0.6823 GB Notification: Performance of Templates: time 0.3737/1.251, allocations: 81.92 MB / 1.019 GB, free: 202.6 MB / 0.6823 GB make -j1 -f IDEAS_IDEAS.Fluid.Movers.Examples.SpeedControlled_y_pumpCurves.makefile (rm -f IDEAS_IDEAS.Fluid.Movers.Examples.SpeedControlled_y_pumpCurves.pipe ; mkfifo IDEAS_IDEAS.Fluid.Movers.Examples.SpeedControlled_y_pumpCurves.pipe ; head -c 1048576 < IDEAS_IDEAS.Fluid.Movers.Examples.SpeedControlled_y_pumpCurves.pipe >> ../files/IDEAS_IDEAS.Fluid.Movers.Examples.SpeedControlled_y_pumpCurves.sim & ./IDEAS_IDEAS.Fluid.Movers.Examples.SpeedControlled_y_pumpCurves -abortSlowSimulation -alarm=480 -lv LOG_STATS > IDEAS_IDEAS.Fluid.Movers.Examples.SpeedControlled_y_pumpCurves.pipe 2>&1)