Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ModelicaTest_3.2.2_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 3.2.2+maint.om/package.mo", uses=false) Using package ModelicaTest with version 3.2.2 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 3.2.2+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_3.2.2_ModelicaTest.Fluid.TestComponents.Fittings.TestJunctionVolume") translateModel(ModelicaTest.Fluid.TestComponents.Fittings.TestJunctionVolume,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="ModelicaTest_3.2.2_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 0.009267/0.009267, allocations: 99.31 kB / 15.73 MB, free: 6.047 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.00258/0.00258, allocations: 186.3 kB / 16.67 MB, free: 5.977 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.539/1.539, allocations: 205.1 MB / 222.5 MB, free: 4.496 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 3.2.2+maint.om/package.mo): time 0.3968/0.3968, allocations: 39.95 MB / 309.8 MB, free: 9.418 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 3.2.2. 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 0.001837/0.001837, allocations: 75.88 kB / 435.8 MB, free: 2.465 MB / 366.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3829/0.3848, allocations: 56.87 MB / 492.7 MB, free: 19.49 MB / 382.1 MB Notification: Performance of NFInst.instantiate(ModelicaTest.Fluid.TestComponents.Fittings.TestJunctionVolume): time 0.6869/1.072, allocations: 209.9 MB / 0.6861 GB, free: 1.125 MB / 0.4981 GB Notification: Performance of NFInst.instExpressions: time 0.02028/1.092, allocations: 13.65 MB / 0.6994 GB, free: 0.8164 MB / 0.4981 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002598/1.095, allocations: 33.81 kB / 0.6995 GB, free: 0.8164 MB / 0.4981 GB Notification: Performance of NFTyping.typeComponents: time 0.001864/1.097, allocations: 476.5 kB / 0.6999 GB, free: 0.8086 MB / 0.4981 GB Notification: Performance of NFTyping.typeBindings: time 0.01229/1.109, allocations: 3.157 MB / 0.703 GB, free: 0.668 MB / 0.4981 GB Notification: Performance of NFTyping.typeClassSections: time 0.01224/1.121, allocations: 3.365 MB / 0.7063 GB, free: 0.5664 MB / 0.4981 GB Notification: Performance of NFFlatten.flatten: time 0.006314/1.127, allocations: 3.239 MB / 0.7094 GB, free: 0.5117 MB / 0.4981 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001643/1.129, allocations: 0.8017 MB / 0.7102 GB, free: 384 kB / 0.4981 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003156/1.132, allocations: 1.27 MB / 0.7115 GB, free: 16 kB / 0.4981 GB Notification: Performance of NFSimplifyModel.simplify: time 0.00234/1.135, allocations: 1.309 MB / 0.7127 GB, free: 15.42 MB / 0.5137 GB Notification: Performance of NFPackage.collectConstants: time 0.0002454/1.135, allocations: 114.6 kB / 0.7129 GB, free: 15.42 MB / 0.5137 GB Notification: Performance of NFFlatten.collectFunctions: time 0.009208/1.144, allocations: 3.374 MB / 0.7162 GB, free: 13.82 MB / 0.5137 GB Notification: Performance of NFScalarize.scalarize: time 0.001132/1.145, allocations: 435.2 kB / 0.7166 GB, free: 13.53 MB / 0.5137 GB Notification: Performance of NFVerifyModel.verify: time 0.002075/1.147, allocations: 0.6355 MB / 0.7172 GB, free: 13.13 MB / 0.5137 GB Notification: Performance of NFConvertDAE.convert: time 0.01296/1.16, allocations: 3.722 MB / 0.7208 GB, free: 11.07 MB / 0.5137 GB Notification: Performance of FrontEnd - DAE generated: time 7.414e-06/1.161, allocations: 0.875 kB / 0.7208 GB, free: 11.07 MB / 0.5137 GB Notification: Performance of FrontEnd: time 1.894e-06/1.161, allocations: 0 / 0.7208 GB, free: 11.07 MB / 0.5137 GB Notification: Performance of Transformations before backend: time 2.188e-05/1.161, allocations: 2.188 kB / 0.7208 GB, free: 11.07 MB / 0.5137 GB 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 0.004922/1.165, allocations: 1.971 MB / 0.7227 GB, free: 9.684 MB / 0.5137 GB Notification: Performance of prepare preOptimizeDAE: time 4.811e-05/1.166, allocations: 18.5 kB / 0.7228 GB, free: 9.676 MB / 0.5137 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001282/1.167, allocations: 216 kB / 0.723 GB, free: 9.574 MB / 0.5137 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001786/1.169, allocations: 0.8448 MB / 0.7238 GB, free: 8.965 MB / 0.5137 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001207/1.169, allocations: 70.12 kB / 0.7239 GB, free: 8.934 MB / 0.5137 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001884/1.169, allocations: 72.72 kB / 0.7239 GB, free: 8.914 MB / 0.5137 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002402/1.171, allocations: 1.233 MB / 0.7251 GB, free: 8.164 MB / 0.5137 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.116e-05/1.171, allocations: 4.906 kB / 0.7251 GB, free: 8.164 MB / 0.5137 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001193/1.172, allocations: 28.98 kB / 0.7252 GB, free: 8.148 MB / 0.5137 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001341/1.172, allocations: 87.33 kB / 0.7253 GB, free: 8.121 MB / 0.5137 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002191/1.174, allocations: 1.209 MB / 0.7264 GB, free: 7.211 MB / 0.5137 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 0.008154/1.182, allocations: 4.873 MB / 0.7312 GB, free: 2.148 MB / 0.5137 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001345/1.183, allocations: 0.7493 MB / 0.7319 GB, free: 1.398 MB / 0.5137 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.000674/1.184, allocations: 387.2 kB / 0.7323 GB, free: 1.02 MB / 0.5137 GB Notification: Performance of preOpt evalFunc (simulation): time 0.001462/1.186, allocations: 1.299 MB / 0.7336 GB, free: 15.51 MB / 0.5294 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.007e-05/1.186, allocations: 43.84 kB / 0.7336 GB, free: 15.46 MB / 0.5294 GB Notification: Performance of pre-optimization done (n=68): time 3.085e-06/1.186, allocations: 0 / 0.7336 GB, free: 15.46 MB / 0.5294 GB Notification: Performance of matching and sorting (n=73): time 0.008352/1.194, allocations: 2.784 MB / 0.7363 GB, free: 12.61 MB / 0.5294 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001214/1.194, allocations: 214.3 kB / 0.7365 GB, free: 12.35 MB / 0.5294 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.00131/1.195, allocations: 0.9426 MB / 0.7374 GB, free: 11.38 MB / 0.5294 GB Notification: Performance of collectPreVariables (initialization): time 8.206e-05/1.196, allocations: 45.7 kB / 0.7375 GB, free: 11.33 MB / 0.5294 GB Notification: Performance of collectInitialEqns (initialization): time 0.0003744/1.196, allocations: 478.5 kB / 0.7379 GB, free: 10.86 MB / 0.5294 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002506/1.196, allocations: 270.5 kB / 0.7382 GB, free: 10.6 MB / 0.5294 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003815/1.197, allocations: 222.5 kB / 0.7384 GB, free: 10.38 MB / 0.5294 GB Notification: Performance of setup shared object (initialization): time 0.0001709/1.197, allocations: 349.9 kB / 0.7388 GB, free: 10.03 MB / 0.5294 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0008703/1.198, allocations: 436.6 kB / 0.7392 GB, free: 9.602 MB / 0.5294 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001076/1.199, allocations: 0.6854 MB / 0.7398 GB, free: 8.816 MB / 0.5294 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001719/1.2, allocations: 1.079 MB / 0.7409 GB, free: 7.68 MB / 0.5294 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.014e-05/1.2, allocations: 8 kB / 0.7409 GB, free: 7.672 MB / 0.5294 GB Notification: Performance of matching and sorting (n=120) (initialization): time 0.002631/1.203, allocations: 1.477 MB / 0.7423 GB, free: 6.215 MB / 0.5294 GB Notification: Performance of prepare postOptimizeDAE: time 2.56e-05/1.203, allocations: 8.844 kB / 0.7423 GB, free: 6.207 MB / 0.5294 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.65e-05/1.203, allocations: 14.52 kB / 0.7424 GB, free: 6.195 MB / 0.5294 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.003485/1.207, allocations: 0.732 MB / 0.7431 GB, free: 5.461 MB / 0.5294 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006651/1.207, allocations: 182 kB / 0.7433 GB, free: 5.293 MB / 0.5294 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001715/1.209, allocations: 1.283 MB / 0.7445 GB, free: 3.988 MB / 0.5294 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009656/1.21, allocations: 43.97 kB / 0.7445 GB, free: 3.945 MB / 0.5294 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001443/1.21, allocations: 91.98 kB / 0.7446 GB, free: 3.855 MB / 0.5294 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001122/1.211, allocations: 0.6073 MB / 0.7452 GB, free: 3.246 MB / 0.5294 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0009561/1.212, allocations: 0.6575 MB / 0.7459 GB, free: 2.48 MB / 0.5294 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001626/1.214, allocations: 1.023 MB / 0.7469 GB, free: 1.387 MB / 0.5294 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 3.657e-06/1.214, allocations: 0 / 0.7469 GB, free: 1.387 MB / 0.5294 GB Notification: Performance of matching and sorting (n=120) (initialization_lambda0): time 0.002455/1.216, allocations: 1.334 MB / 0.7482 GB, free: 84 kB / 0.5294 GB Notification: Performance of prepare postOptimizeDAE: time 1.755e-05/1.216, allocations: 11.94 kB / 0.7482 GB, free: 72 kB / 0.5294 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.119e-05/1.216, allocations: 11.98 kB / 0.7482 GB, free: 60 kB / 0.5294 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001516/1.218, allocations: 364.8 kB / 0.7485 GB, free: 15.7 MB / 0.545 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000697/1.219, allocations: 208.4 kB / 0.7487 GB, free: 15.51 MB / 0.545 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001154/1.22, allocations: 0.976 MB / 0.7497 GB, free: 14.51 MB / 0.545 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009024/1.221, allocations: 56.02 kB / 0.7497 GB, free: 14.46 MB / 0.545 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001358/1.221, allocations: 91.98 kB / 0.7498 GB, free: 14.37 MB / 0.545 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 0.0004027/1.221, allocations: 237.5 kB / 0.7501 GB, free: 14.14 MB / 0.545 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002258/1.222, allocations: 106.7 kB / 0.7502 GB, free: 14.03 MB / 0.545 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002978/1.225, allocations: 1.361 MB / 0.7515 GB, free: 12.64 MB / 0.545 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.363e-05/1.225, allocations: 8 kB / 0.7515 GB, free: 12.64 MB / 0.545 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 8.776e-06/1.225, allocations: 0 / 0.7515 GB, free: 12.64 MB / 0.545 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.046e-05/1.225, allocations: 3.984 kB / 0.7515 GB, free: 12.63 MB / 0.545 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.00403/1.229, allocations: 2.165 MB / 0.7536 GB, free: 10.42 MB / 0.545 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.764e-06/1.229, allocations: 4 kB / 0.7536 GB, free: 10.42 MB / 0.545 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0007921/1.229, allocations: 174.2 kB / 0.7538 GB, free: 10.25 MB / 0.545 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0001159/1.23, allocations: 28.03 kB / 0.7538 GB, free: 10.23 MB / 0.545 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 9.384e-05/1.23, allocations: 40.17 kB / 0.7539 GB, free: 10.19 MB / 0.545 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001271/1.231, allocations: 1.377 MB / 0.7552 GB, free: 8.68 MB / 0.545 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.998e-06/1.231, allocations: 8.016 kB / 0.7552 GB, free: 8.672 MB / 0.545 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002998/1.234, allocations: 1.608 MB / 0.7568 GB, free: 7.027 MB / 0.545 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0004717/1.235, allocations: 179.8 kB / 0.7569 GB, free: 6.832 MB / 0.545 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002735/1.235, allocations: 19.94 kB / 0.757 GB, free: 6.812 MB / 0.545 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0007926/1.236, allocations: 35.97 kB / 0.757 GB, free: 6.777 MB / 0.545 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001576/1.236, allocations: 64.55 kB / 0.7571 GB, free: 6.715 MB / 0.545 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001477/1.236, allocations: 71.97 kB / 0.7571 GB, free: 6.645 MB / 0.545 GB Notification: Performance of sorting global known variables: time 0.001207/1.237, allocations: 0.6577 MB / 0.7578 GB, free: 5.977 MB / 0.545 GB Notification: Performance of sort global known variables: time 1.51e-07/1.237, allocations: 0 / 0.7578 GB, free: 5.977 MB / 0.545 GB Notification: Performance of remove unused functions: time 0.003841/1.241, allocations: 1.062 MB / 0.7588 GB, free: 4.914 MB / 0.545 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 0.00348/1.244, allocations: 1.001 MB / 0.7598 GB, free: 3.98 MB / 0.545 GB Notification: Performance of simCode: created initialization part: time 0.004039/1.249, allocations: 1.645 MB / 0.7614 GB, free: 2.391 MB / 0.545 GB Notification: Performance of simCode: created event and clocks part: time 9.397e-06/1.249, allocations: 0 / 0.7614 GB, free: 2.391 MB / 0.545 GB Notification: Performance of simCode: created simulation system equations: time 0.001228/1.25, allocations: 0.571 MB / 0.762 GB, free: 1.82 MB / 0.545 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003769/1.254, allocations: 0.5644 MB / 0.7625 GB, free: 1.258 MB / 0.545 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.004685/1.258, allocations: 2.001 MB / 0.7645 GB, free: 15.23 MB / 0.5606 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0009202/1.259, allocations: 1.082 MB / 0.7655 GB, free: 14.11 MB / 0.5606 GB Notification: Performance of simCode: alias equations: time 0.002476/1.262, allocations: 0.5983 MB / 0.7661 GB, free: 13.51 MB / 0.5606 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.000598/1.262, allocations: 163.4 kB / 0.7663 GB, free: 13.35 MB / 0.5606 GB Notification: Performance of SimCode: time 1.212e-06/1.262, allocations: 3.188 kB / 0.7663 GB, free: 13.35 MB / 0.5606 GB Notification: Performance of Templates: time 0.07013/1.332, allocations: 39.14 MB / 0.8045 GB, free: 6.285 MB / 0.5919 GB make -j1 -f ModelicaTest_3.2.2_ModelicaTest.Fluid.TestComponents.Fittings.TestJunctionVolume.makefile (rm -f ModelicaTest_3.2.2_ModelicaTest.Fluid.TestComponents.Fittings.TestJunctionVolume.pipe ; mkfifo ModelicaTest_3.2.2_ModelicaTest.Fluid.TestComponents.Fittings.TestJunctionVolume.pipe ; head -c 1048576 < ModelicaTest_3.2.2_ModelicaTest.Fluid.TestComponents.Fittings.TestJunctionVolume.pipe >> ../files/ModelicaTest_3.2.2_ModelicaTest.Fluid.TestComponents.Fittings.TestJunctionVolume.sim & ./ModelicaTest_3.2.2_ModelicaTest.Fluid.TestComponents.Fittings.TestJunctionVolume -abortSlowSimulation -alarm=480 -lv LOG_STATS > ModelicaTest_3.2.2_ModelicaTest.Fluid.TestComponents.Fittings.TestJunctionVolume.pipe 2>&1)