Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.ApparatusDewPoint.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+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/ModelicaServices 3.2.3+maint.om/package.mo", uses=false) Using package ModelicaServices with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+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 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo) 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) Running command: "" <> buildModelFMU(Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.ApparatusDewPoint,fileNamePrefix="Buildings_maint_7_0_x_Buildings_Fluid_HeatExchangers_DXCoils_BaseClasses_Examples_ApparatusDewPoint",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.ApparatusDewPoint,fileNamePrefix="Buildings_maint_7_0_x_Buildings_Fluid_HeatExchangers_DXCoils_BaseClasses_Examples_ApparatusDewPoint",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo): time 1.411/1.411, allocations: 251.5 MB / 266.7 MB, free: 11.05 MB / 218.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.0009032/0.0009031, allocations: 184.5 kB / 325.8 MB, free: 2.715 MB / 250.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.465/1.465, allocations: 205 MB / 0.576 GB, free: 21.01 MB / 426.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.0007374/0.0007374, allocations: 88.73 kB / 0.6797 GB, free: 14.72 MB / 0.5105 GB Notification: Performance of FrontEnd - loaded program: time 0.0003237/0.0003237, allocations: 11.47 kB / 0.7933 GB, free: 136.7 MB / 0.6042 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2047/0.205, allocations: 105.4 MB / 0.8962 GB, free: 68.11 MB / 0.6042 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.ApparatusDewPoint): time 0.002664/0.2077, allocations: 2.573 MB / 0.8987 GB, free: 65.52 MB / 0.6042 GB Notification: Performance of NFInst.instExpressions: time 0.1547/0.3625, allocations: 152.4 MB / 1.048 GB, free: 8.52 MB / 0.698 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0003895/0.3629, allocations: 7.938 kB / 1.048 GB, free: 8.512 MB / 0.698 GB Notification: Performance of NFTyping.typeComponents: time 0.001405/0.3644, allocations: 0.4978 MB / 1.048 GB, free: 8.012 MB / 0.698 GB Notification: Performance of NFTyping.typeBindings: time 0.001575/0.366, allocations: 0.5873 MB / 1.049 GB, free: 7.422 MB / 0.698 GB Notification: Performance of NFTyping.typeClassSections: time 0.001536/0.3675, allocations: 0.5636 MB / 1.049 GB, free: 6.859 MB / 0.698 GB Notification: Performance of NFFlatten.flatten: time 0.00123/0.3687, allocations: 1.22 MB / 1.05 GB, free: 5.637 MB / 0.698 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0002783/0.369, allocations: 174.4 kB / 1.051 GB, free: 5.449 MB / 0.698 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0006651/0.3697, allocations: 426.2 kB / 1.051 GB, free: 5.031 MB / 0.698 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0009692/0.3707, allocations: 0.5641 MB / 1.052 GB, free: 4.465 MB / 0.698 GB Notification: Performance of NFPackage.collectConstants: time 0.0002471/0.3709, allocations: 56 kB / 1.052 GB, free: 4.41 MB / 0.698 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002339/0.3733, allocations: 1.247 MB / 1.053 GB, free: 3.16 MB / 0.698 GB Notification: Performance of NFScalarize.scalarize: time 0.0003282/0.3736, allocations: 342.8 kB / 1.053 GB, free: 2.824 MB / 0.698 GB Notification: Performance of NFVerifyModel.verify: time 0.0007063/0.3744, allocations: 0.6021 MB / 1.054 GB, free: 2.219 MB / 0.698 GB Notification: Performance of NFConvertDAE.convert: time 0.4219/0.7963, allocations: 2.664 MB / 1.056 GB, free: 5.453 MB / 0.698 GB Notification: Performance of FrontEnd - DAE generated: time 6.341e-06/0.7963, allocations: 1.062 kB / 1.056 GB, free: 5.453 MB / 0.698 GB Notification: Performance of FrontEnd: time 3.176e-06/0.7963, allocations: 5.031 kB / 1.056 GB, free: 5.453 MB / 0.698 GB Notification: Performance of Transformations before backend: time 6.768e-05/0.7964, allocations: 0.8125 kB / 1.056 GB, free: 5.453 MB / 0.698 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 31 * Number of variables: 31 Notification: Performance of Generate backend data structure: time 0.003391/0.7998, allocations: 1.817 MB / 1.058 GB, free: 4.535 MB / 0.698 GB Notification: Performance of prepare preOptimizeDAE: time 4.441e-05/0.7999, allocations: 8.031 kB / 1.058 GB, free: 4.535 MB / 0.698 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 5.261e-05/0.7999, allocations: 45.77 kB / 1.058 GB, free: 4.496 MB / 0.698 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01732/0.8172, allocations: 2.3 MB / 1.06 GB, free: 4.324 MB / 0.698 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.00278/0.8201, allocations: 1.388 MB / 1.062 GB, free: 3.898 MB / 0.698 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.193e-05/0.8201, allocations: 13.48 kB / 1.062 GB, free: 3.898 MB / 0.698 GB Notification: Performance of preOpt expandDerOperator (simulation): time 9.124e-05/0.8202, allocations: 23.12 kB / 1.062 GB, free: 3.898 MB / 0.698 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.005947/0.8261, allocations: 1.255 MB / 1.063 GB, free: 3.797 MB / 0.698 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.377e-05/0.8262, allocations: 4.844 kB / 1.063 GB, free: 3.793 MB / 0.698 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 6.284e-05/0.8263, allocations: 4.906 kB / 1.063 GB, free: 3.793 MB / 0.698 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.238e-05/0.8263, allocations: 2.438 kB / 1.063 GB, free: 3.793 MB / 0.698 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01065/0.8369, allocations: 2.089 MB / 1.065 GB, free: 3.703 MB / 0.698 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.01092/0.8479, allocations: 3.337 MB / 1.068 GB, free: 3.215 MB / 0.698 GB Notification: Performance of preOpt comSubExp (simulation): time 0.01293/0.8608, allocations: 2.773 MB / 1.071 GB, free: 3.039 MB / 0.698 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.004777/0.8656, allocations: 1.072 MB / 1.072 GB, free: 2.973 MB / 0.698 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0005137/0.8662, allocations: 445 kB / 1.072 GB, free: 2.504 MB / 0.698 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.004827/0.871, allocations: 1.227 MB / 1.074 GB, free: 2.363 MB / 0.698 GB Notification: Performance of pre-optimization done (n=21): time 2.414e-06/0.871, allocations: 0 / 1.074 GB, free: 2.363 MB / 0.698 GB Notification: Performance of matching and sorting (n=21): time 0.03321/0.9043, allocations: 4.807 MB / 1.078 GB, free: 1.867 MB / 0.698 GB Notification: Performance of inlineWhenForInitialization (initialization): time 6.519e-05/0.9044, allocations: 135.1 kB / 1.079 GB, free: 1.711 MB / 0.698 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.00363/0.908, allocations: 2.419 MB / 1.081 GB, free: 1.535 MB / 0.698 GB Notification: Performance of collectPreVariables (initialization): time 0.0002602/0.9083, allocations: 32.83 kB / 1.081 GB, free: 1.504 MB / 0.698 GB Notification: Performance of collectInitialEqns (initialization): time 0.0004173/0.9087, allocations: 0.5499 MB / 1.081 GB, free: 1.406 MB / 0.698 GB Notification: Performance of collectInitialBindings (initialization): time 9.285e-05/0.9088, allocations: 55.42 kB / 1.081 GB, free: 1.371 MB / 0.698 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001158/0.9089, allocations: 53.84 kB / 1.082 GB, free: 1.355 MB / 0.698 GB Notification: Performance of setup shared object (initialization): time 0.0001395/0.9091, allocations: 326.8 kB / 1.082 GB, free: 17.05 MB / 0.7136 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.005063/0.9141, allocations: 1.213 MB / 1.083 GB, free: 17 MB / 0.7136 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.005122/0.9193, allocations: 1.256 MB / 1.084 GB, free: 16.93 MB / 0.7136 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.009359/0.9287, allocations: 2.126 MB / 1.086 GB, free: 16.75 MB / 0.7136 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.821e-06/0.9287, allocations: 4 kB / 1.086 GB, free: 16.75 MB / 0.7136 GB Notification: Performance of matching and sorting (n=48) (initialization): time 0.02681/0.9555, allocations: 4.156 MB / 1.09 GB, free: 16.36 MB / 0.7136 GB Notification: Performance of prepare postOptimizeDAE: time 0.0001432/0.9557, allocations: 151.1 kB / 1.091 GB, free: 16.22 MB / 0.7136 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.975e-06/0.9557, allocations: 0 / 1.091 GB, free: 16.22 MB / 0.7136 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.004194/0.9599, allocations: 0.9765 MB / 1.091 GB, free: 16.12 MB / 0.7136 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002503/0.9624, allocations: 432.4 kB / 1.092 GB, free: 16.11 MB / 0.7136 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.009485/0.9719, allocations: 8.093 MB / 1.1 GB, free: 10.39 MB / 0.7136 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004098/0.976, allocations: 484.9 kB / 1.1 GB, free: 10.34 MB / 0.7136 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0002545/0.9763, allocations: 38.25 kB / 1.1 GB, free: 10.34 MB / 0.7136 GB Notification: Performance of prepare postOptimizeDAE: time 1.23e-05/0.9763, allocations: 6.188 kB / 1.1 GB, free: 10.34 MB / 0.7136 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.02611/1.002, allocations: 3.856 MB / 1.104 GB, free: 9.746 MB / 0.7136 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.044e-05/1.002, allocations: 0 / 1.104 GB, free: 9.746 MB / 0.7136 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.002743/1.005, allocations: 0.7969 MB / 1.105 GB, free: 9.398 MB / 0.7136 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00251/1.008, allocations: 427.4 kB / 1.105 GB, free: 9.246 MB / 0.7136 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.006142/1.014, allocations: 6.853 MB / 1.112 GB, free: 3.227 MB / 0.7136 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003472/1.017, allocations: 468.6 kB / 1.112 GB, free: 3.043 MB / 0.7136 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001821/1.018, allocations: 41.92 kB / 1.112 GB, free: 3.031 MB / 0.7136 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 2 * Number of states: 0 () * Number of discrete variables: 10 (deaBan.y,$PRE.deaBan.y,speRat.nextEventScaled,speRat.nextEvent,$PRE.speRat.nextEvent,speRat.last,speRat.b,speRat.a,adp.stage,$whenCondition1) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (34): * Single equations (assignments): 28 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 5 * 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): 5 systems {(1,1), (1,2), (1,2), (1,2), (1,2)} Notification: Performance of prepare postOptimizeDAE: time 0.001035/1.019, allocations: 0.6639 MB / 1.113 GB, free: 2.711 MB / 0.7136 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0005192/1.019, allocations: 146.5 kB / 1.113 GB, free: 2.633 MB / 0.7136 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.02576/1.045, allocations: 3.514 MB / 1.117 GB, free: 1.316 MB / 0.7136 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.373e-05/1.045, allocations: 4 kB / 1.117 GB, free: 1.312 MB / 0.7136 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.818e-06/1.045, allocations: 6.594 kB / 1.117 GB, free: 1.312 MB / 0.7136 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.238e-05/1.045, allocations: 3.984 kB / 1.117 GB, free: 1.309 MB / 0.7136 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002435/1.048, allocations: 1.097 MB / 1.118 GB, free: 0.7422 MB / 0.7136 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.17e-06/1.048, allocations: 0 / 1.118 GB, free: 0.7422 MB / 0.7136 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.00244/1.05, allocations: 389 kB / 1.118 GB, free: 0.6016 MB / 0.7136 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0006217/1.051, allocations: 173.4 kB / 1.118 GB, free: 0.5312 MB / 0.7136 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001105/1.051, allocations: 28.98 kB / 1.118 GB, free: 0.5156 MB / 0.7136 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0009978/1.052, allocations: 0.6539 MB / 1.119 GB, free: 15.94 MB / 0.7292 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.063e-06/1.052, allocations: 0 / 1.119 GB, free: 15.94 MB / 0.7292 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.02496/1.077, allocations: 3.471 MB / 1.122 GB, free: 14.62 MB / 0.7292 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001629/1.078, allocations: 436.5 kB / 1.123 GB, free: 14.39 MB / 0.7292 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0007224/1.079, allocations: 10.06 kB / 1.123 GB, free: 14.39 MB / 0.7292 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003333/1.083, allocations: 413.3 kB / 1.123 GB, free: 14.23 MB / 0.7292 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001088/1.083, allocations: 27.44 kB / 1.123 GB, free: 14.22 MB / 0.7292 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001306/1.083, allocations: 32.11 kB / 1.123 GB, free: 14.21 MB / 0.7292 GB Notification: Performance of sorting global known variables: time 0.003651/1.086, allocations: 1.726 MB / 1.125 GB, free: 13.79 MB / 0.7292 GB Notification: Performance of sort global known variables: time 3.01e-07/1.086, allocations: 0 / 1.125 GB, free: 13.79 MB / 0.7292 GB Notification: Performance of remove unused functions: time 0.002908/1.089, allocations: 0.5375 MB / 1.125 GB, free: 13.77 MB / 0.7292 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 2 * Number of states: 0 () * Number of discrete variables: 8 ($whenCondition1,adp.stage,speRat.a,speRat.b,speRat.last,speRat.nextEvent,speRat.nextEventScaled,deaBan.y) * Number of discrete states: 7 (deaBan.y,speRat.nextEvent,speRat.last,speRat.nextEventScaled,speRat.b,speRat.a,$whenCondition1) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (16): * Single equations (assignments): 14 * Array equations: 0 * Algorithm blocks: 1 * 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 {(1,1)} Notification: Performance of Backend phase and start with SimCode phase: time 0.01163/1.101, allocations: 3.068 MB / 1.128 GB, free: 12.34 MB / 0.7292 GB Notification: Performance of simCode: created initialization part: time 0.01753/1.119, allocations: 5.146 MB / 1.133 GB, free: 8.922 MB / 0.7292 GB Notification: Performance of simCode: created event and clocks part: time 4.939e-06/1.119, allocations: 4 kB / 1.133 GB, free: 8.918 MB / 0.7292 GB Notification: Performance of simCode: created simulation system equations: time 0.00512/1.124, allocations: 1.195 MB / 1.135 GB, free: 7.852 MB / 0.7292 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002139/1.126, allocations: 311.7 kB / 1.135 GB, free: 7.605 MB / 0.7292 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.1037/1.23, allocations: 26.24 MB / 1.161 GB, free: 1.129 MB / 0.7448 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001122/1.231, allocations: 1.399 MB / 1.162 GB, free: 15.86 MB / 0.7605 GB Notification: Performance of simCode: alias equations: time 0.001819/1.233, allocations: 382.7 kB / 1.162 GB, free: 15.48 MB / 0.7605 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0008306/1.234, allocations: 422.7 kB / 1.163 GB, free: 15.38 MB / 0.7605 GB Notification: Performance of SimCode: time 9.62e-07/1.234, allocations: 0 / 1.163 GB, free: 15.38 MB / 0.7605 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.4022/1.636, allocations: 45.68 MB / 1.207 GB, free: 2.172 MB / 0.7917 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0003751/1.636, allocations: 284.7 kB / 1.208 GB, free: 1.785 MB / 0.7917 GB Notification: Performance of buildModelFMU: Generate platform static: time 3.305/4.941, allocations: 4 kB / 1.208 GB, free: 1.781 MB / 0.7917 GB (rm -f Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.ApparatusDewPoint.pipe ; mkfifo Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.ApparatusDewPoint.pipe ; head -c 1048576 < Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.ApparatusDewPoint.pipe >> ../files/Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.ApparatusDewPoint.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_Buildings_maint_7_0_x_Buildings_Fluid_HeatExchangers_DXCoils_BaseClasses_Examples_ApparatusDewPoint_fmu --startTime=0 --stopTime=3600 --timeout=50 --tolerance=1e-06 Buildings_maint_7_0_x_Buildings_Fluid_HeatExchangers_DXCoils_BaseClasses_Examples_ApparatusDewPoint.fmu > Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.ApparatusDewPoint.pipe 2>&1)