Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr BuildingSystems_BuildingSystems.Electrical.AC.OnePhase.Conversion.Examples.ACDCConverter.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 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-master/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo", uses=false) Using package BuildingSystems with version 2.0.0-beta (/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo) Using package NcDataReader2 with version 2.5.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-master/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 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(BuildingSystems.Electrical.AC.OnePhase.Conversion.Examples.ACDCConverter,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="BuildingSystems_BuildingSystems.Electrical.AC.OnePhase.Conversion.Examples.ACDCConverter") translateModel(BuildingSystems.Electrical.AC.OnePhase.Conversion.Examples.ACDCConverter,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="BuildingSystems_BuildingSystems.Electrical.AC.OnePhase.Conversion.Examples.ACDCConverter") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001565/0.001565, allocations: 103.8 kB / 15.98 MB, free: 6.355 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001213/0.001213, allocations: 195.3 kB / 16.91 MB, free: 6.195 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.379/1.379, allocations: 222.9 MB / 240.6 MB, free: 13.74 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-master/package.mo): time 0.002568/0.002568, allocations: 293.2 kB / 291 MB, free: 14.48 MB / 238.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo): time 1.17/1.17, allocations: 178.5 MB / 0.5076 GB, free: 12.74 MB / 382.1 MB Notification: Performance of FrontEnd - loaded program: time 0.002761/0.002761, allocations: 99.83 kB / 0.6066 GB, free: 9.664 MB / 462.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.159/0.1618, allocations: 89.13 MB / 0.6936 GB, free: 456 kB / 0.5294 GB Notification: Performance of NFInst.instantiate(BuildingSystems.Electrical.AC.OnePhase.Conversion.Examples.ACDCConverter): time 0.00517/0.167, allocations: 3.384 MB / 0.6969 GB, free: 13.04 MB / 0.545 GB Notification: Performance of NFInst.instExpressions: time 0.003429/0.1705, allocations: 2.155 MB / 0.699 GB, free: 10.87 MB / 0.545 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0001473/0.1707, allocations: 7.938 kB / 0.6991 GB, free: 10.86 MB / 0.545 GB Notification: Performance of NFTyping.typeComponents: time 0.0009084/0.1716, allocations: 275 kB / 0.6993 GB, free: 10.59 MB / 0.545 GB Notification: Performance of NFTyping.typeBindings: time 0.0005497/0.1722, allocations: 215.1 kB / 0.6995 GB, free: 10.38 MB / 0.545 GB Notification: Performance of NFTyping.typeClassSections: time 0.0007415/0.1729, allocations: 267.4 kB / 0.6998 GB, free: 10.12 MB / 0.545 GB Notification: Performance of NFFlatten.flatten: time 0.0004748/0.1734, allocations: 398.7 kB / 0.7002 GB, free: 9.727 MB / 0.545 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0004345/0.1738, allocations: 220.1 kB / 0.7004 GB, free: 9.516 MB / 0.545 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0002253/0.1741, allocations: 155.4 kB / 0.7005 GB, free: 9.363 MB / 0.545 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0003192/0.1744, allocations: 191.3 kB / 0.7007 GB, free: 9.176 MB / 0.545 GB Notification: Performance of NFPackage.collectConstants: time 3.894e-05/0.1745, allocations: 20 kB / 0.7007 GB, free: 9.156 MB / 0.545 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0006964/0.1752, allocations: 427.2 kB / 0.7011 GB, free: 8.738 MB / 0.545 GB Notification: Performance of NFScalarize.scalarize: time 0.0001244/0.1753, allocations: 99.77 kB / 0.7012 GB, free: 8.641 MB / 0.545 GB Notification: Performance of NFVerifyModel.verify: time 0.0001539/0.1755, allocations: 143.2 kB / 0.7014 GB, free: 8.5 MB / 0.545 GB Notification: Performance of NFConvertDAE.convert: time 0.0005856/0.1761, allocations: 399.1 kB / 0.7017 GB, free: 8.109 MB / 0.545 GB Notification: Performance of FrontEnd - DAE generated: time 3.968e-06/0.1761, allocations: 0 / 0.7017 GB, free: 8.109 MB / 0.545 GB Notification: Performance of FrontEnd: time 1.653e-06/0.1761, allocations: 4 kB / 0.7017 GB, free: 8.105 MB / 0.545 GB Notification: Performance of Transformations before backend: time 6.332e-06/0.1761, allocations: 0 / 0.7017 GB, free: 8.105 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: 63 * Number of variables: 63 Notification: Performance of Generate backend data structure: time 0.001125/0.1772, allocations: 0.6042 MB / 0.7023 GB, free: 7.453 MB / 0.545 GB Notification: Performance of prepare preOptimizeDAE: time 3.535e-05/0.1773, allocations: 8.031 kB / 0.7023 GB, free: 7.445 MB / 0.545 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0008512/0.1781, allocations: 120.4 kB / 0.7025 GB, free: 7.328 MB / 0.545 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0003563/0.1785, allocations: 275.7 kB / 0.7027 GB, free: 7.02 MB / 0.545 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.327e-05/0.1785, allocations: 24.8 kB / 0.7027 GB, free: 6.996 MB / 0.545 GB Notification: Performance of preOpt expandDerOperator (simulation): time 4.535e-05/0.1786, allocations: 20.38 kB / 0.7028 GB, free: 6.977 MB / 0.545 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0007068/0.1793, allocations: 411.9 kB / 0.7032 GB, free: 6.543 MB / 0.545 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.078e-05/0.1793, allocations: 4 kB / 0.7032 GB, free: 6.539 MB / 0.545 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 3.219e-05/0.1793, allocations: 11.98 kB / 0.7032 GB, free: 6.527 MB / 0.545 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.971e-05/0.1794, allocations: 32.55 kB / 0.7032 GB, free: 6.492 MB / 0.545 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0006847/0.1801, allocations: 353.8 kB / 0.7035 GB, free: 6.148 MB / 0.545 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.00276/0.1829, allocations: 2.05 MB / 0.7055 GB, free: 3.906 MB / 0.545 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0008875/0.1838, allocations: 345.1 kB / 0.7059 GB, free: 3.551 MB / 0.545 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0004161/0.1842, allocations: 194.3 kB / 0.7061 GB, free: 3.355 MB / 0.545 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0001293/0.1843, allocations: 93.03 kB / 0.7061 GB, free: 3.246 MB / 0.545 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.979e-05/0.1844, allocations: 34.56 kB / 0.7062 GB, free: 3.203 MB / 0.545 GB Notification: Performance of pre-optimization done (n=22): time 2.013e-06/0.1844, allocations: 0 / 0.7062 GB, free: 3.203 MB / 0.545 GB Notification: Performance of matching and sorting (n=34): time 0.005132/0.1895, allocations: 1.583 MB / 0.7077 GB, free: 1.586 MB / 0.545 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.87e-05/0.1896, allocations: 85.05 kB / 0.7078 GB, free: 1.484 MB / 0.545 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0002538/0.1899, allocations: 237 kB / 0.708 GB, free: 1.25 MB / 0.545 GB Notification: Performance of collectPreVariables (initialization): time 3.902e-05/0.1899, allocations: 33.7 kB / 0.7081 GB, free: 1.211 MB / 0.545 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001363/0.1901, allocations: 180 kB / 0.7082 GB, free: 1.031 MB / 0.545 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001013/0.1902, allocations: 118.3 kB / 0.7083 GB, free: 0.9141 MB / 0.545 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001441/0.1903, allocations: 82.03 kB / 0.7084 GB, free: 0.8281 MB / 0.545 GB Notification: Performance of setup shared object (initialization): time 0.0001535/0.1905, allocations: 334.8 kB / 0.7087 GB, free: 0.4922 MB / 0.545 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0004113/0.1909, allocations: 202.5 kB / 0.7089 GB, free: 296 kB / 0.545 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.2403/0.4312, allocations: 299.3 kB / 0.7092 GB, free: 50.36 MB / 0.545 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0008251/0.432, allocations: 0.5068 MB / 0.7097 GB, free: 50.25 MB / 0.545 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.427e-06/0.432, allocations: 2.562 kB / 0.7097 GB, free: 50.25 MB / 0.545 GB Notification: Performance of matching and sorting (n=49) (initialization): time 0.001188/0.4332, allocations: 0.6544 MB / 0.7104 GB, free: 50.18 MB / 0.545 GB Notification: Performance of prepare postOptimizeDAE: time 1.755e-05/0.4333, allocations: 9.031 kB / 0.7104 GB, free: 50.18 MB / 0.545 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.714e-06/0.4333, allocations: 3.562 kB / 0.7104 GB, free: 50.18 MB / 0.545 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0004679/0.4337, allocations: 148.4 kB / 0.7105 GB, free: 50.15 MB / 0.545 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004061/0.4342, allocations: 92.55 kB / 0.7106 GB, free: 50.15 MB / 0.545 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001973/0.4361, allocations: 4.175 MB / 0.7147 GB, free: 46.45 MB / 0.545 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0003262/0.4365, allocations: 40.17 kB / 0.7147 GB, free: 46.44 MB / 0.545 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.913e-05/0.4365, allocations: 13 kB / 0.7147 GB, free: 46.44 MB / 0.545 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.000417/0.4369, allocations: 323.2 kB / 0.715 GB, free: 46.28 MB / 0.545 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0003332/0.4373, allocations: 300 kB / 0.7153 GB, free: 46.09 MB / 0.545 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0006442/0.4379, allocations: 0.5056 MB / 0.7158 GB, free: 45.83 MB / 0.545 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.134e-06/0.4379, allocations: 3.094 kB / 0.7158 GB, free: 45.83 MB / 0.545 GB Notification: Performance of matching and sorting (n=49) (initialization_lambda0): time 0.001003/0.439, allocations: 0.6503 MB / 0.7164 GB, free: 45.59 MB / 0.545 GB Notification: Performance of prepare postOptimizeDAE: time 8.426e-06/0.439, allocations: 8.375 kB / 0.7165 GB, free: 45.59 MB / 0.545 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.797e-06/0.439, allocations: 7.422 kB / 0.7165 GB, free: 45.59 MB / 0.545 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0003477/0.4393, allocations: 149.9 kB / 0.7166 GB, free: 45.53 MB / 0.545 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003651/0.4397, allocations: 96.17 kB / 0.7167 GB, free: 45.52 MB / 0.545 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001679/0.4414, allocations: 4.173 MB / 0.7208 GB, free: 41.55 MB / 0.545 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0003075/0.4417, allocations: 39.64 kB / 0.7208 GB, free: 41.54 MB / 0.545 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.603e-05/0.4418, allocations: 19.5 kB / 0.7208 GB, free: 41.53 MB / 0.545 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 14 * 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 (45): * Single equations (assignments): 41 * Array equations: 0 * 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): 2 systems {(1,1,100.0%), (1,1,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 2 systems {(1,1), (1,1)} Notification: Performance of prepare postOptimizeDAE: time 9.701e-05/0.4419, allocations: 206.3 kB / 0.721 GB, free: 41.33 MB / 0.545 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 6.859e-05/0.4419, allocations: 29.27 kB / 0.7211 GB, free: 41.32 MB / 0.545 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001018/0.443, allocations: 0.6072 MB / 0.7216 GB, free: 41.05 MB / 0.545 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.847e-06/0.443, allocations: 3.094 kB / 0.7217 GB, free: 41.05 MB / 0.545 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.005e-06/0.443, allocations: 2.844 kB / 0.7217 GB, free: 41.05 MB / 0.545 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.32e-06/0.443, allocations: 7.328 kB / 0.7217 GB, free: 41.04 MB / 0.545 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001703/0.4447, allocations: 1.315 MB / 0.7229 GB, free: 40.25 MB / 0.545 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.226e-06/0.4447, allocations: 4.25 kB / 0.7229 GB, free: 40.25 MB / 0.545 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.000236/0.445, allocations: 61.72 kB / 0.723 GB, free: 40.25 MB / 0.545 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0003351/0.4453, allocations: 148.8 kB / 0.7232 GB, free: 40.19 MB / 0.545 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.341e-05/0.4453, allocations: 18.47 kB / 0.7232 GB, free: 40.18 MB / 0.545 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001727/0.4471, allocations: 4.188 MB / 0.7273 GB, free: 36.17 MB / 0.545 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.414e-06/0.4471, allocations: 3 kB / 0.7273 GB, free: 36.17 MB / 0.545 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0009259/0.448, allocations: 0.7688 MB / 0.728 GB, free: 35.69 MB / 0.545 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001007/0.4481, allocations: 133.9 kB / 0.7281 GB, free: 35.57 MB / 0.545 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 4.26e-05/0.4482, allocations: 14.75 kB / 0.7282 GB, free: 35.57 MB / 0.545 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0002948/0.4485, allocations: 31.95 kB / 0.7282 GB, free: 35.56 MB / 0.545 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 6.88e-05/0.4485, allocations: 32.02 kB / 0.7282 GB, free: 35.55 MB / 0.545 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.207e-05/0.4486, allocations: 19.78 kB / 0.7282 GB, free: 35.55 MB / 0.545 GB Notification: Performance of sorting global known variables: time 0.0001107/0.4487, allocations: 172.4 kB / 0.7284 GB, free: 35.45 MB / 0.545 GB Notification: Performance of sort global known variables: time 1.2e-07/0.4487, allocations: 0 / 0.7284 GB, free: 35.45 MB / 0.545 GB Notification: Performance of remove unused functions: time 0.0006578/0.4494, allocations: 162.3 kB / 0.7286 GB, free: 35.43 MB / 0.545 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 10 * 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 (31): * Single equations (assignments): 27 * Array equations: 0 * 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): 2 systems {(1,1,100.0%), (1,1,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 2 systems {(1,2), (1,2)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0001614/0.4495, allocations: 138.5 kB / 0.7287 GB, free: 35.33 MB / 0.545 GB Notification: Performance of simCode: created initialization part: time 0.001723/0.4513, allocations: 1.273 MB / 0.7299 GB, free: 34.64 MB / 0.545 GB Notification: Performance of simCode: created event and clocks part: time 3.397e-06/0.4513, allocations: 0.5312 kB / 0.7299 GB, free: 34.64 MB / 0.545 GB Notification: Performance of simCode: created simulation system equations: time 0.0005822/0.4519, allocations: 489.7 kB / 0.7304 GB, free: 34.34 MB / 0.545 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0005466/0.4524, allocations: 65.39 kB / 0.7305 GB, free: 34.32 MB / 0.545 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0009431/0.4534, allocations: 0.9166 MB / 0.7314 GB, free: 33.72 MB / 0.545 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0001853/0.4536, allocations: 0.8088 MB / 0.7321 GB, free: 33.01 MB / 0.545 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 8.649e-05/0.4537, allocations: 30.88 kB / 0.7322 GB, free: 33.01 MB / 0.545 GB Notification: Performance of SimCode: time 2.5e-07/0.4537, allocations: 0 / 0.7322 GB, free: 33.01 MB / 0.545 GB Notification: Performance of Templates: time 0.00856/0.4622, allocations: 9.099 MB / 0.7411 GB, free: 32.36 MB / 0.545 GB make -j1 -f BuildingSystems_BuildingSystems.Electrical.AC.OnePhase.Conversion.Examples.ACDCConverter.makefile (rm -f BuildingSystems_BuildingSystems.Electrical.AC.OnePhase.Conversion.Examples.ACDCConverter.pipe ; mkfifo BuildingSystems_BuildingSystems.Electrical.AC.OnePhase.Conversion.Examples.ACDCConverter.pipe ; head -c 1048576 < BuildingSystems_BuildingSystems.Electrical.AC.OnePhase.Conversion.Examples.ACDCConverter.pipe >> ../files/BuildingSystems_BuildingSystems.Electrical.AC.OnePhase.Conversion.Examples.ACDCConverter.sim & ./BuildingSystems_BuildingSystems.Electrical.AC.OnePhase.Conversion.Examples.ACDCConverter -abortSlowSimulation -alarm=480 -lv LOG_STATS > BuildingSystems_BuildingSystems.Electrical.AC.OnePhase.Conversion.Examples.ACDCConverter.pipe 2>&1)