Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesBalanced.Sensors.Examples.Probe.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/Buildings 7.0.3-maint.7.0.x/package.mo", uses=false) Using package Buildings with version 7.0.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/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(Buildings.Electrical.AC.ThreePhasesBalanced.Sensors.Examples.Probe,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesBalanced.Sensors.Examples.Probe") translateModel(Buildings.Electrical.AC.ThreePhasesBalanced.Sensors.Examples.Probe,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesBalanced.Sensors.Examples.Probe") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001485/0.001485, allocations: 111.3 kB / 15.23 MB, free: 0.6602 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001884/0.001884, allocations: 195.5 kB / 16.14 MB, free: 6.656 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.674/1.674, allocations: 205.1 MB / 222 MB, free: 4.746 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo): time 1.628/1.628, allocations: 251.7 MB / 0.5088 GB, free: 3.363 MB / 414.1 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 0.001415/0.001415, allocations: 63.91 kB / 0.6216 GB, free: 1.973 MB / 0.5137 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.7217/0.7232, allocations: 104.7 MB / 0.7238 GB, free: 13.16 MB / 0.545 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesBalanced.Sensors.Examples.Probe): time 0.007881/0.7311, allocations: 4.677 MB / 0.7284 GB, free: 8.457 MB / 0.545 GB Notification: Performance of NFInst.instExpressions: time 0.004147/0.7353, allocations: 2.221 MB / 0.7306 GB, free: 6.223 MB / 0.545 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0003089/0.7357, allocations: 11.94 kB / 0.7306 GB, free: 6.211 MB / 0.545 GB Notification: Performance of NFTyping.typeComponents: time 0.001537/0.7373, allocations: 0.5023 MB / 0.7311 GB, free: 5.707 MB / 0.545 GB Notification: Performance of NFTyping.typeBindings: time 0.0006882/0.738, allocations: 246.9 kB / 0.7313 GB, free: 5.465 MB / 0.545 GB Notification: Performance of NFTyping.typeClassSections: time 0.0009864/0.739, allocations: 322.2 kB / 0.7316 GB, free: 5.152 MB / 0.545 GB Notification: Performance of NFFlatten.flatten: time 0.0008201/0.7398, allocations: 0.8064 MB / 0.7324 GB, free: 4.344 MB / 0.545 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0006987/0.7405, allocations: 366.2 kB / 0.7327 GB, free: 3.988 MB / 0.545 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0002943/0.7408, allocations: 207.2 kB / 0.7329 GB, free: 3.785 MB / 0.545 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0004873/0.7413, allocations: 283 kB / 0.7332 GB, free: 3.508 MB / 0.545 GB Notification: Performance of NFPackage.collectConstants: time 5.929e-05/0.7414, allocations: 28 kB / 0.7332 GB, free: 3.48 MB / 0.545 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0006577/0.7421, allocations: 303.4 kB / 0.7335 GB, free: 3.184 MB / 0.545 GB Notification: Performance of NFScalarize.scalarize: time 0.0002045/0.7423, allocations: 171.6 kB / 0.7337 GB, free: 3.016 MB / 0.545 GB Notification: Performance of NFVerifyModel.verify: time 0.0002414/0.7425, allocations: 206.9 kB / 0.7339 GB, free: 2.812 MB / 0.545 GB Notification: Performance of NFConvertDAE.convert: time 0.000718/0.7433, allocations: 0.6385 MB / 0.7345 GB, free: 2.172 MB / 0.545 GB Notification: Performance of FrontEnd - DAE generated: time 5.771e-06/0.7433, allocations: 0 / 0.7345 GB, free: 2.172 MB / 0.545 GB Notification: Performance of FrontEnd: time 8.62e-07/0.7433, allocations: 0 / 0.7345 GB, free: 2.172 MB / 0.545 GB Notification: Performance of Transformations before backend: time 1.034e-05/0.7433, allocations: 3.938 kB / 0.7345 GB, free: 2.168 MB / 0.545 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 102 * Number of variables: 102 Notification: Performance of Generate backend data structure: time 0.001319/0.7446, allocations: 0.7175 MB / 0.7352 GB, free: 1.398 MB / 0.545 GB Notification: Performance of prepare preOptimizeDAE: time 4.828e-05/0.7447, allocations: 8.031 kB / 0.7352 GB, free: 1.391 MB / 0.545 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001042/0.7457, allocations: 132.3 kB / 0.7353 GB, free: 1.262 MB / 0.545 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.000483/0.7462, allocations: 328.4 kB / 0.7357 GB, free: 0.9023 MB / 0.545 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.714e-05/0.7463, allocations: 29.36 kB / 0.7357 GB, free: 0.875 MB / 0.545 GB Notification: Performance of preOpt expandDerOperator (simulation): time 6.994e-05/0.7464, allocations: 44.3 kB / 0.7357 GB, free: 0.832 MB / 0.545 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0009478/0.7473, allocations: 0.6225 MB / 0.7363 GB, free: 156 kB / 0.545 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.71e-05/0.7473, allocations: 7.938 kB / 0.7363 GB, free: 148 kB / 0.545 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 4.975e-05/0.7474, allocations: 15.98 kB / 0.7364 GB, free: 132 kB / 0.545 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 8.497e-05/0.7475, allocations: 40.62 kB / 0.7364 GB, free: 92 kB / 0.545 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0007451/0.7482, allocations: 478.2 kB / 0.7369 GB, free: 15.62 MB / 0.5606 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.003579/0.7518, allocations: 3.424 MB / 0.7402 GB, free: 11.91 MB / 0.5606 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0006792/0.7525, allocations: 376.9 kB / 0.7406 GB, free: 11.52 MB / 0.5606 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002505/0.7528, allocations: 170.4 kB / 0.7407 GB, free: 11.35 MB / 0.5606 GB Notification: Performance of preOpt evalFunc (simulation): time 4.56e-05/0.7529, allocations: 11.98 kB / 0.7407 GB, free: 11.34 MB / 0.5606 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.984e-05/0.7529, allocations: 34.56 kB / 0.7408 GB, free: 11.29 MB / 0.5606 GB Notification: Performance of pre-optimization done (n=25): time 2.174e-06/0.7529, allocations: 0 / 0.7408 GB, free: 11.29 MB / 0.5606 GB Notification: Performance of matching and sorting (n=26): time 0.004823/0.7577, allocations: 1.461 MB / 0.7422 GB, free: 9.777 MB / 0.5606 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.325e-05/0.7578, allocations: 81.11 kB / 0.7423 GB, free: 9.68 MB / 0.5606 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0004626/0.7583, allocations: 324.4 kB / 0.7426 GB, free: 9.359 MB / 0.5606 GB Notification: Performance of collectPreVariables (initialization): time 3.233e-05/0.7583, allocations: 33.7 kB / 0.7426 GB, free: 9.32 MB / 0.5606 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001706/0.7585, allocations: 255.3 kB / 0.7429 GB, free: 9.062 MB / 0.5606 GB Notification: Performance of collectInitialBindings (initialization): time 8.595e-05/0.7586, allocations: 90.73 kB / 0.7429 GB, free: 8.973 MB / 0.5606 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.000148/0.7587, allocations: 98.14 kB / 0.743 GB, free: 8.871 MB / 0.5606 GB Notification: Performance of setup shared object (initialization): time 0.0001423/0.7589, allocations: 338.8 kB / 0.7434 GB, free: 8.531 MB / 0.5606 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002882/0.7592, allocations: 187 kB / 0.7435 GB, free: 8.344 MB / 0.5606 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.00042/0.7596, allocations: 338 kB / 0.7439 GB, free: 7.945 MB / 0.5606 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.000682/0.7603, allocations: 0.5318 MB / 0.7444 GB, free: 7.34 MB / 0.5606 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.776e-06/0.7603, allocations: 4 kB / 0.7444 GB, free: 7.336 MB / 0.5606 GB Notification: Performance of matching and sorting (n=55) (initialization): time 0.002377/0.7627, allocations: 0.9084 MB / 0.7453 GB, free: 6.414 MB / 0.5606 GB Notification: Performance of prepare postOptimizeDAE: time 2.496e-05/0.7627, allocations: 11.98 kB / 0.7453 GB, free: 6.402 MB / 0.5606 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.3e-05/0.7628, allocations: 4 kB / 0.7453 GB, free: 6.398 MB / 0.5606 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.002371/0.7651, allocations: 0.4971 MB / 0.7458 GB, free: 5.895 MB / 0.5606 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004011/0.7656, allocations: 99.81 kB / 0.7459 GB, free: 5.797 MB / 0.5606 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.005861/0.7714, allocations: 3.771 MB / 0.7495 GB, free: 1.762 MB / 0.5606 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0005028/0.772, allocations: 39.81 kB / 0.7496 GB, free: 1.723 MB / 0.5606 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.55e-05/0.772, allocations: 24 kB / 0.7496 GB, free: 1.699 MB / 0.5606 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0004827/0.7725, allocations: 301.1 kB / 0.7499 GB, free: 1.398 MB / 0.5606 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.000395/0.7729, allocations: 335.8 kB / 0.7502 GB, free: 0.9961 MB / 0.5606 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0006673/0.7736, allocations: 0.5081 MB / 0.7507 GB, free: 420 kB / 0.5606 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 4.459e-06/0.7736, allocations: 4 kB / 0.7507 GB, free: 416 kB / 0.5606 GB Notification: Performance of matching and sorting (n=55) (initialization_lambda0): time 0.0008354/0.7744, allocations: 0.5245 MB / 0.7512 GB, free: 15.87 MB / 0.5762 GB Notification: Performance of prepare postOptimizeDAE: time 1.424e-05/0.7745, allocations: 7.938 kB / 0.7512 GB, free: 15.86 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.714e-06/0.7745, allocations: 8 kB / 0.7512 GB, free: 15.86 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (initialization): time 8.105e-06/0.7745, allocations: 8 kB / 0.7512 GB, free: 15.85 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004104/0.7749, allocations: 111.8 kB / 0.7514 GB, free: 15.74 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.759e-05/0.775, allocations: 11.94 kB / 0.7514 GB, free: 15.73 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0003214/0.7753, allocations: 36.31 kB / 0.7514 GB, free: 15.69 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.107e-05/0.7753, allocations: 20 kB / 0.7514 GB, free: 15.67 MB / 0.5762 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 24 * 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 (49): * Single equations (assignments): 47 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * 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): 2 systems {(2,2), (2,2)} Notification: Performance of prepare postOptimizeDAE: time 0.0002152/0.7755, allocations: 216 kB / 0.7516 GB, free: 15.45 MB / 0.5762 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001042/0.7757, allocations: 35.62 kB / 0.7517 GB, free: 15.42 MB / 0.5762 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001787/0.7774, allocations: 0.6744 MB / 0.7523 GB, free: 14.73 MB / 0.5762 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 7.404e-06/0.7775, allocations: 0 / 0.7523 GB, free: 14.73 MB / 0.5762 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.869e-06/0.7775, allocations: 4 kB / 0.7523 GB, free: 14.72 MB / 0.5762 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.621e-06/0.7775, allocations: 0 / 0.7523 GB, free: 14.72 MB / 0.5762 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001019/0.7785, allocations: 0.6635 MB / 0.753 GB, free: 14 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.685e-06/0.7785, allocations: 0 / 0.753 GB, free: 14 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001939/0.7787, allocations: 47.95 kB / 0.753 GB, free: 13.95 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.001516/0.7803, allocations: 401.3 kB / 0.7534 GB, free: 13.55 MB / 0.5762 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.48e-05/0.7803, allocations: 7.938 kB / 0.7534 GB, free: 13.55 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.004061/0.7844, allocations: 3.463 MB / 0.7568 GB, free: 9.816 MB / 0.5762 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.089e-06/0.7844, allocations: 8.094 kB / 0.7568 GB, free: 9.809 MB / 0.5762 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001763/0.7862, allocations: 0.8179 MB / 0.7576 GB, free: 8.957 MB / 0.5762 GB Notification: Performance of postOpt removeConstants (simulation): time 0.000195/0.7864, allocations: 148.5 kB / 0.7577 GB, free: 8.793 MB / 0.5762 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 4.8e-05/0.7864, allocations: 12 kB / 0.7577 GB, free: 8.781 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003513/0.7868, allocations: 35.94 kB / 0.7578 GB, free: 8.746 MB / 0.5762 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 8.77e-05/0.7869, allocations: 23.97 kB / 0.7578 GB, free: 8.723 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.031e-05/0.7869, allocations: 8 kB / 0.7578 GB, free: 8.715 MB / 0.5762 GB Notification: Performance of sorting global known variables: time 0.0003177/0.7872, allocations: 227 kB / 0.758 GB, free: 8.496 MB / 0.5762 GB Notification: Performance of sort global known variables: time 1.2e-07/0.7872, allocations: 3.938 kB / 0.758 GB, free: 8.492 MB / 0.5762 GB Notification: Performance of remove unused functions: time 0.001082/0.7883, allocations: 196 kB / 0.7582 GB, free: 8.301 MB / 0.5762 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 4 * 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 (23): * Single equations (assignments): 21 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * 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): 2 systems {(2,2), (2,2)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0002343/0.7886, allocations: 111.2 kB / 0.7583 GB, free: 8.18 MB / 0.5762 GB Notification: Performance of simCode: created initialization part: time 0.002021/0.7906, allocations: 0.9589 MB / 0.7593 GB, free: 7.195 MB / 0.5762 GB Notification: Performance of simCode: created event and clocks part: time 6.793e-06/0.7906, allocations: 1.938 kB / 0.7593 GB, free: 7.195 MB / 0.5762 GB Notification: Performance of simCode: created simulation system equations: time 0.0007705/0.7914, allocations: 481.9 kB / 0.7597 GB, free: 6.699 MB / 0.5762 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0006923/0.7921, allocations: 76.97 kB / 0.7598 GB, free: 6.625 MB / 0.5762 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001794/0.7939, allocations: 0.904 MB / 0.7607 GB, free: 5.688 MB / 0.5762 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004718/0.7944, allocations: 0.8509 MB / 0.7615 GB, free: 4.809 MB / 0.5762 GB Notification: Performance of simCode: alias equations: time 0.0004072/0.7948, allocations: 135.1 kB / 0.7616 GB, free: 4.68 MB / 0.5762 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 7.962e-05/0.7949, allocations: 27.44 kB / 0.7617 GB, free: 4.652 MB / 0.5762 GB Notification: Performance of SimCode: time 7.52e-07/0.7949, allocations: 0 / 0.7617 GB, free: 4.652 MB / 0.5762 GB Notification: Performance of Templates: time 0.01336/0.8083, allocations: 6.857 MB / 0.7684 GB, free: 13.83 MB / 0.5919 GB make -j1 -f Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesBalanced.Sensors.Examples.Probe.makefile (rm -f Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesBalanced.Sensors.Examples.Probe.pipe ; mkfifo Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesBalanced.Sensors.Examples.Probe.pipe ; head -c 1048576 < Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesBalanced.Sensors.Examples.Probe.pipe >> ../files/Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesBalanced.Sensors.Examples.Probe.sim & ./Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesBalanced.Sensors.Examples.Probe -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesBalanced.Sensors.Examples.Probe.pipe 2>&1)