Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_IDEAS.Fluid.Actuators.Valves.Examples.TwoWayValves.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/IDEAS 3.0.0/package.mo", uses=false) Using package IDEAS with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/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: "" <> buildModelFMU(IDEAS.Fluid.Actuators.Valves.Examples.TwoWayValves,fileNamePrefix="IDEAS_IDEAS_Fluid_Actuators_Valves_Examples_TwoWayValves",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IDEAS.Fluid.Actuators.Valves.Examples.TwoWayValves,fileNamePrefix="IDEAS_IDEAS_Fluid_Actuators_Valves_Examples_TwoWayValves",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.005028/0.005028, allocations: 102 kB / 15.73 MB, free: 6.055 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001124/0.001124, allocations: 191.5 kB / 16.67 MB, free: 5.965 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.231/1.231, allocations: 222.9 MB / 240.4 MB, free: 15.15 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/package.mo): time 0.7433/0.7433, allocations: 132.2 MB / 422.7 MB, free: 6.594 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001136/0.001136, allocations: 61.91 kB / 0.5809 GB, free: 24.35 MB / 446.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1347/0.1358, allocations: 80.22 MB / 0.6592 GB, free: 10.87 MB / 0.4981 GB Notification: Performance of NFInst.instantiate(IDEAS.Fluid.Actuators.Valves.Examples.TwoWayValves): time 0.02715/0.163, allocations: 29.82 MB / 0.6883 GB, free: 12.94 MB / 0.5294 GB Notification: Performance of NFInst.instExpressions: time 0.01007/0.1731, allocations: 8.148 MB / 0.6963 GB, free: 4.77 MB / 0.5294 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001063/0.1742, allocations: 27.81 kB / 0.6963 GB, free: 4.742 MB / 0.5294 GB Notification: Performance of NFTyping.typeComponents: time 0.001102/0.1754, allocations: 440.9 kB / 0.6967 GB, free: 4.309 MB / 0.5294 GB Notification: Performance of NFTyping.typeBindings: time 0.003196/0.1786, allocations: 1.431 MB / 0.6981 GB, free: 2.879 MB / 0.5294 GB Notification: Performance of NFTyping.typeClassSections: time 0.002504/0.1811, allocations: 1.146 MB / 0.6992 GB, free: 1.742 MB / 0.5294 GB Notification: Performance of NFFlatten.flatten: time 0.003315/0.1844, allocations: 3.551 MB / 0.7027 GB, free: 14.18 MB / 0.545 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001461/0.1859, allocations: 1.326 MB / 0.704 GB, free: 12.84 MB / 0.545 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002226/0.1881, allocations: 1.71 MB / 0.7057 GB, free: 11.12 MB / 0.545 GB Notification: Performance of NFSimplifyModel.simplify: time 0.002304/0.1904, allocations: 1.62 MB / 0.7072 GB, free: 9.5 MB / 0.545 GB Notification: Performance of NFPackage.collectConstants: time 0.0002732/0.1907, allocations: 127.9 kB / 0.7074 GB, free: 9.375 MB / 0.545 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001715/0.1924, allocations: 1.018 MB / 0.7084 GB, free: 8.355 MB / 0.545 GB Notification: Performance of NFScalarize.scalarize: time 0.0004194/0.1929, allocations: 402.7 kB / 0.7087 GB, free: 7.961 MB / 0.545 GB Notification: Performance of NFVerifyModel.verify: time 0.0008016/0.1937, allocations: 0.7545 MB / 0.7095 GB, free: 7.203 MB / 0.545 GB Notification: Performance of NFConvertDAE.convert: time 0.002184/0.1959, allocations: 2.206 MB / 0.7116 GB, free: 4.992 MB / 0.545 GB Notification: Performance of FrontEnd - DAE generated: time 3.927e-06/0.1959, allocations: 3.938 kB / 0.7116 GB, free: 4.988 MB / 0.545 GB Notification: Performance of FrontEnd: time 1.192e-06/0.1959, allocations: 0 / 0.7116 GB, free: 4.988 MB / 0.545 GB Notification: Performance of Transformations before backend: time 1.348e-05/0.1959, allocations: 0 / 0.7116 GB, free: 4.988 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: 145 * Number of variables: 145 Notification: Performance of Generate backend data structure: time 0.002407/0.1983, allocations: 1.667 MB / 0.7133 GB, free: 3.27 MB / 0.545 GB Notification: Performance of prepare preOptimizeDAE: time 4.279e-05/0.1984, allocations: 8.031 kB / 0.7133 GB, free: 3.262 MB / 0.545 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 9.337e-05/0.1985, allocations: 102.7 kB / 0.7134 GB, free: 3.152 MB / 0.545 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0003172/0.1988, allocations: 158.3 kB / 0.7135 GB, free: 2.996 MB / 0.545 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001507/0.2003, allocations: 0.9182 MB / 0.7144 GB, free: 2.02 MB / 0.545 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 6.113e-05/0.2004, allocations: 81.31 kB / 0.7145 GB, free: 1.941 MB / 0.545 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001875/0.2006, allocations: 116 kB / 0.7146 GB, free: 1.828 MB / 0.545 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0009182/0.2015, allocations: 0.6395 MB / 0.7152 GB, free: 1.16 MB / 0.545 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.622e-05/0.2015, allocations: 0 / 0.7152 GB, free: 1.16 MB / 0.545 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 4.678e-05/0.2016, allocations: 31.94 kB / 0.7153 GB, free: 1.129 MB / 0.545 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.295e-05/0.2016, allocations: 12 kB / 0.7153 GB, free: 1.117 MB / 0.545 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0007955/0.2024, allocations: 464.8 kB / 0.7157 GB, free: 0.6641 MB / 0.545 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 0.003733/0.2061, allocations: 2.867 MB / 0.7185 GB, free: 13.64 MB / 0.5606 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0005378/0.2067, allocations: 315.2 kB / 0.7188 GB, free: 13.33 MB / 0.5606 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002667/0.207, allocations: 149.3 kB / 0.719 GB, free: 13.18 MB / 0.5606 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002667/0.2072, allocations: 344.7 kB / 0.7193 GB, free: 12.77 MB / 0.5606 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.107e-05/0.2073, allocations: 34.84 kB / 0.7193 GB, free: 12.73 MB / 0.5606 GB Notification: Performance of pre-optimization done (n=33): time 1.613e-06/0.2073, allocations: 0 / 0.7193 GB, free: 12.73 MB / 0.5606 GB Notification: Performance of matching and sorting (n=33): time 0.001117/0.2084, allocations: 0.5252 MB / 0.7198 GB, free: 12.2 MB / 0.5606 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.457e-05/0.2084, allocations: 59.41 kB / 0.7199 GB, free: 12.12 MB / 0.5606 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0008843/0.2093, allocations: 0.9076 MB / 0.7208 GB, free: 11.2 MB / 0.5606 GB Notification: Performance of collectPreVariables (initialization): time 9.897e-05/0.2094, allocations: 57.7 kB / 0.7208 GB, free: 11.14 MB / 0.5606 GB Notification: Performance of collectInitialEqns (initialization): time 0.0003622/0.2098, allocations: 486.6 kB / 0.7213 GB, free: 10.66 MB / 0.5606 GB Notification: Performance of collectInitialBindings (initialization): time 7.959e-05/0.2099, allocations: 114.4 kB / 0.7214 GB, free: 10.54 MB / 0.5606 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003702/0.2103, allocations: 286.9 kB / 0.7217 GB, free: 10.26 MB / 0.5606 GB Notification: Performance of setup shared object (initialization): time 0.000101/0.2104, allocations: 337.9 kB / 0.722 GB, free: 9.922 MB / 0.5606 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003608/0.2107, allocations: 193.4 kB / 0.7222 GB, free: 9.727 MB / 0.5606 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001316/0.2121, allocations: 1.151 MB / 0.7233 GB, free: 8.215 MB / 0.5606 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0007447/0.2128, allocations: 459.4 kB / 0.7238 GB, free: 7.742 MB / 0.5606 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.655e-06/0.2128, allocations: 0 / 0.7238 GB, free: 7.742 MB / 0.5606 GB Notification: Performance of matching and sorting (n=73) (initialization): time 0.001159/0.214, allocations: 0.6501 MB / 0.7244 GB, free: 7.082 MB / 0.5606 GB Notification: Performance of prepare postOptimizeDAE: time 1.47e-05/0.214, allocations: 4 kB / 0.7244 GB, free: 7.078 MB / 0.5606 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.055e-06/0.214, allocations: 4 kB / 0.7244 GB, free: 7.074 MB / 0.5606 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.77e-05/0.2141, allocations: 8.188 kB / 0.7244 GB, free: 7.066 MB / 0.5606 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00129/0.2153, allocations: 227.7 kB / 0.7246 GB, free: 6.844 MB / 0.5606 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001397/0.2168, allocations: 2.961 MB / 0.7275 GB, free: 3.766 MB / 0.5606 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00273/0.2195, allocations: 0.6987 MB / 0.7282 GB, free: 3.066 MB / 0.5606 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.693e-05/0.2196, allocations: 27.98 kB / 0.7282 GB, free: 3.039 MB / 0.5606 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0005876/0.2202, allocations: 373.3 kB / 0.7286 GB, free: 2.668 MB / 0.5606 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.001177/0.2213, allocations: 1.162 MB / 0.7297 GB, free: 1.129 MB / 0.5606 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0006757/0.222, allocations: 452.7 kB / 0.7301 GB, free: 0.6406 MB / 0.5606 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 3.637e-06/0.222, allocations: 4 kB / 0.7301 GB, free: 0.6367 MB / 0.5606 GB Notification: Performance of matching and sorting (n=73) (initialization_lambda0): time 0.001198/0.2232, allocations: 0.655 MB / 0.7308 GB, free: 15.97 MB / 0.5762 GB Notification: Performance of prepare postOptimizeDAE: time 1.057e-05/0.2233, allocations: 10.19 kB / 0.7308 GB, free: 15.96 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.539e-06/0.2233, allocations: 4 kB / 0.7308 GB, free: 15.96 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (initialization): time 8.465e-06/0.2233, allocations: 4 kB / 0.7308 GB, free: 15.96 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006232/0.2239, allocations: 164 kB / 0.731 GB, free: 15.8 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 7.564e-06/0.2239, allocations: 11.94 kB / 0.731 GB, free: 15.79 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00363/0.2276, allocations: 0.9574 MB / 0.7319 GB, free: 14.83 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.92e-05/0.2276, allocations: 31.98 kB / 0.7319 GB, free: 14.8 MB / 0.5762 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 9 * 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 (73): * Single equations (assignments): 68 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 5 * Torn equation systems: 0 * 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): 5 systems {1, 1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0002069/0.2278, allocations: 241 kB / 0.7322 GB, free: 14.55 MB / 0.5762 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001271/0.228, allocations: 98.69 kB / 0.7323 GB, free: 14.46 MB / 0.5762 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0009914/0.229, allocations: 0.5085 MB / 0.7328 GB, free: 13.93 MB / 0.5762 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 9.187e-06/0.229, allocations: 8 kB / 0.7328 GB, free: 13.93 MB / 0.5762 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.849e-06/0.229, allocations: 0 / 0.7328 GB, free: 13.93 MB / 0.5762 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.502e-06/0.229, allocations: 3.984 kB / 0.7328 GB, free: 13.92 MB / 0.5762 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001665/0.2307, allocations: 1.26 MB / 0.734 GB, free: 12.59 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.128e-06/0.2307, allocations: 0 / 0.734 GB, free: 12.59 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0004772/0.2312, allocations: 119.8 kB / 0.7341 GB, free: 12.48 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (simulation): time 8.075e-06/0.2312, allocations: 7.938 kB / 0.7341 GB, free: 12.47 MB / 0.5762 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.68e-05/0.2312, allocations: 12.11 kB / 0.7341 GB, free: 12.46 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001184/0.2324, allocations: 2.938 MB / 0.737 GB, free: 9.402 MB / 0.5762 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.683e-06/0.2324, allocations: 0 / 0.737 GB, free: 9.402 MB / 0.5762 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0007723/0.2332, allocations: 0.5674 MB / 0.7376 GB, free: 8.809 MB / 0.5762 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0002138/0.2334, allocations: 211.7 kB / 0.7378 GB, free: 8.582 MB / 0.5762 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 8.452e-05/0.2335, allocations: 11.94 kB / 0.7378 GB, free: 8.57 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003944/0.2339, allocations: 31.95 kB / 0.7378 GB, free: 8.539 MB / 0.5762 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 6.665e-05/0.234, allocations: 27.97 kB / 0.7378 GB, free: 8.512 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.88e-05/0.234, allocations: 15.98 kB / 0.7378 GB, free: 8.496 MB / 0.5762 GB Notification: Performance of sorting global known variables: time 0.0006309/0.2347, allocations: 0.6084 MB / 0.7384 GB, free: 7.879 MB / 0.5762 GB Notification: Performance of sort global known variables: time 1.2e-07/0.2347, allocations: 0 / 0.7384 GB, free: 7.879 MB / 0.5762 GB Notification: Performance of remove unused functions: time 0.001131/0.2358, allocations: 0.5267 MB / 0.739 GB, free: 7.352 MB / 0.5762 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 (39): * Single equations (assignments): 32 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 2 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 5 * Torn equation systems: 0 * 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): 5 systems {1, 1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.001542/0.2374, allocations: 1.345 MB / 0.7403 GB, free: 5.98 MB / 0.5762 GB Notification: Performance of simCode: created initialization part: time 0.002107/0.2395, allocations: 0.8422 MB / 0.7411 GB, free: 5.145 MB / 0.5762 GB Notification: Performance of simCode: created event and clocks part: time 2.384e-06/0.2395, allocations: 4 kB / 0.7411 GB, free: 5.141 MB / 0.5762 GB Notification: Performance of simCode: created simulation system equations: time 0.0005122/0.24, allocations: 229.7 kB / 0.7413 GB, free: 4.918 MB / 0.5762 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.00144/0.2415, allocations: 400 kB / 0.7417 GB, free: 4.535 MB / 0.5762 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.2999/0.5414, allocations: 6.528 MB / 0.7481 GB, free: 81.09 MB / 0.5762 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004923/0.542, allocations: 1.027 MB / 0.7491 GB, free: 80.38 MB / 0.5762 GB Notification: Performance of simCode: alias equations: time 0.0008821/0.5428, allocations: 207.6 kB / 0.7493 GB, free: 80.37 MB / 0.5762 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004126/0.5433, allocations: 365 kB / 0.7496 GB, free: 80.37 MB / 0.5762 GB Notification: Performance of SimCode: time 6.41e-07/0.5433, allocations: 0 / 0.7496 GB, free: 80.37 MB / 0.5762 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.05831/0.6016, allocations: 33.5 MB / 0.7823 GB, free: 66.17 MB / 0.5762 GB Notification: Performance of buildModelFMU: Generate platform static: time 12.06/12.66, allocations: 13.56 kB / 0.7823 GB, free: 66.16 MB / 0.5762 GB (rm -f IDEAS_IDEAS.Fluid.Actuators.Valves.Examples.TwoWayValves.pipe ; mkfifo IDEAS_IDEAS.Fluid.Actuators.Valves.Examples.TwoWayValves.pipe ; head -c 1048576 < IDEAS_IDEAS.Fluid.Actuators.Valves.Examples.TwoWayValves.pipe >> ../files/IDEAS_IDEAS.Fluid.Actuators.Valves.Examples.TwoWayValves.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_IDEAS_IDEAS_Fluid_Actuators_Valves_Examples_TwoWayValves_fmu --startTime=0 --stopTime=1 --timeout=50 --tolerance=1e-06 IDEAS_IDEAS_Fluid_Actuators_Valves_Examples_TwoWayValves.fmu > IDEAS_IDEAS.Fluid.Actuators.Valves.Examples.TwoWayValves.pipe 2>&1)