Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_8_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.DryCoil.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 8.1.4-maint.8.1.x/package.mo", uses=false) Using package Buildings with version 8.1.4 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.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.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.DryCoil,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.DryCoil") translateModel(Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.DryCoil,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.DryCoil") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001576/0.001577, allocations: 101.4 kB / 15.7 MB, free: 28 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001977/0.001977, allocations: 191.8 kB / 16.64 MB, free: 6.445 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.439/1.439, allocations: 205.1 MB / 222.5 MB, free: 4.551 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.79/1.79, allocations: 292.3 MB / 0.549 GB, free: 12.77 MB / 462.1 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 0.001458/0.001459, allocations: 65.66 kB / 0.6723 GB, free: 26.08 MB / 0.5294 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2709/0.2724, allocations: 114.6 MB / 0.7841 GB, free: 12.71 MB / 0.6075 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.DryCoil): time 0.00575/0.2782, allocations: 3.357 MB / 0.7874 GB, free: 9.324 MB / 0.6075 GB Notification: Performance of NFInst.instExpressions: time 0.004857/0.2831, allocations: 3.249 MB / 0.7906 GB, free: 6.062 MB / 0.6075 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0002722/0.2834, allocations: 7.938 kB / 0.7906 GB, free: 6.055 MB / 0.6075 GB Notification: Performance of NFTyping.typeComponents: time 0.001319/0.2848, allocations: 0.5248 MB / 0.7911 GB, free: 5.527 MB / 0.6075 GB Notification: Performance of NFTyping.typeBindings: time 0.0002309/0.285, allocations: 115.1 kB / 0.7912 GB, free: 5.414 MB / 0.6075 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/Fluid/HeatExchangers/DXCoils/BaseClasses/Functions/warnIfPerformanceOutOfBounds.mo:2:1-41:33:writable] Warning: Pure function 'Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Functions.warnIfPerformanceOutOfBounds' contains a call to impure function 'Modelica.Utilities.Streams.print'. Notification: Performance of NFTyping.typeClassSections: time 0.002003/0.287, allocations: 0.7104 MB / 0.7919 GB, free: 4.711 MB / 0.6075 GB Notification: Performance of NFFlatten.flatten: time 0.001525/0.2886, allocations: 1.643 MB / 0.7935 GB, free: 3.07 MB / 0.6075 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0003395/0.2889, allocations: 248 kB / 0.7938 GB, free: 2.816 MB / 0.6075 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0005515/0.2895, allocations: 0.5685 MB / 0.7943 GB, free: 2.246 MB / 0.6075 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0006253/0.2901, allocations: 0.5916 MB / 0.7949 GB, free: 1.652 MB / 0.6075 GB Notification: Performance of NFPackage.collectConstants: time 0.0001724/0.2903, allocations: 136 kB / 0.795 GB, free: 1.52 MB / 0.6075 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0009794/0.2913, allocations: 0.6594 MB / 0.7957 GB, free: 0.8594 MB / 0.6075 GB Notification: Performance of NFScalarize.scalarize: time 0.0004904/0.2918, allocations: 0.6001 MB / 0.7963 GB, free: 264 kB / 0.6075 GB Notification: Performance of NFVerifyModel.verify: time 0.0007138/0.2925, allocations: 0.8513 MB / 0.7971 GB, free: 15.4 MB / 0.6231 GB Notification: Performance of NFConvertDAE.convert: time 0.002926/0.2955, allocations: 3.4 MB / 0.8004 GB, free: 11.99 MB / 0.6231 GB Notification: Performance of FrontEnd - DAE generated: time 6.653e-06/0.2955, allocations: 3.984 kB / 0.8004 GB, free: 11.99 MB / 0.6231 GB Notification: Performance of FrontEnd: time 1.583e-06/0.2955, allocations: 0 / 0.8004 GB, free: 11.99 MB / 0.6231 GB Notification: Performance of Transformations before backend: time 2.084e-05/0.2955, allocations: 0 / 0.8004 GB, free: 11.99 MB / 0.6231 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 76 * Number of variables: 76 Notification: Performance of Generate backend data structure: time 0.003235/0.2988, allocations: 2.101 MB / 0.8025 GB, free: 9.816 MB / 0.6231 GB Notification: Performance of prepare preOptimizeDAE: time 5.198e-05/0.2988, allocations: 15.97 kB / 0.8025 GB, free: 9.801 MB / 0.6231 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.005793/0.3046, allocations: 0.6349 MB / 0.8031 GB, free: 9.164 MB / 0.6231 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002541/0.3072, allocations: 1.568 MB / 0.8046 GB, free: 7.551 MB / 0.6231 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002134/0.3074, allocations: 140.5 kB / 0.8048 GB, free: 7.402 MB / 0.6231 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001044/0.3075, allocations: 35.94 kB / 0.8048 GB, free: 7.367 MB / 0.6231 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.003406/0.3109, allocations: 1.876 MB / 0.8066 GB, free: 5.48 MB / 0.6231 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.364e-05/0.3109, allocations: 4 kB / 0.8066 GB, free: 5.477 MB / 0.6231 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001037/0.3111, allocations: 15.98 kB / 0.8066 GB, free: 5.461 MB / 0.6231 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.63e-05/0.3111, allocations: 8 kB / 0.8067 GB, free: 5.453 MB / 0.6231 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.00541/0.3165, allocations: 2.614 MB / 0.8092 GB, free: 2.84 MB / 0.6231 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.007715/0.3242, allocations: 4.576 MB / 0.8137 GB, free: 14.21 MB / 0.6387 GB Notification: Performance of preOpt comSubExp (simulation): time 0.00945/0.3337, allocations: 2.897 MB / 0.8165 GB, free: 11.3 MB / 0.6387 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.002303/0.336, allocations: 1.185 MB / 0.8177 GB, free: 10.11 MB / 0.6387 GB Notification: Performance of preOpt evalFunc (simulation): time 8.326e-05/0.3361, allocations: 20.34 kB / 0.8177 GB, free: 10.09 MB / 0.6387 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.003222/0.3394, allocations: 1.792 MB / 0.8194 GB, free: 8.277 MB / 0.6387 GB Notification: Performance of pre-optimization done (n=61): time 3.737e-06/0.3394, allocations: 0 / 0.8194 GB, free: 8.277 MB / 0.6387 GB Notification: Performance of matching and sorting (n=61): time 0.008175/0.3476, allocations: 3.633 MB / 0.823 GB, free: 4.633 MB / 0.6387 GB Notification: Performance of inlineWhenForInitialization (initialization): time 8.669e-05/0.3477, allocations: 97.61 kB / 0.8231 GB, free: 4.52 MB / 0.6387 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.004087/0.3518, allocations: 2.684 MB / 0.8257 GB, free: 1.836 MB / 0.6387 GB Notification: Performance of collectPreVariables (initialization): time 0.0002938/0.3521, allocations: 53.69 kB / 0.8257 GB, free: 1.777 MB / 0.6387 GB Notification: Performance of collectInitialEqns (initialization): time 0.0006707/0.3527, allocations: 0.6692 MB / 0.8264 GB, free: 1.105 MB / 0.6387 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002211/0.353, allocations: 181.5 kB / 0.8266 GB, free: 0.9258 MB / 0.6387 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003382/0.3533, allocations: 150.1 kB / 0.8267 GB, free: 0.7734 MB / 0.6387 GB Notification: Performance of setup shared object (initialization): time 0.0001177/0.3534, allocations: 334 kB / 0.827 GB, free: 452 kB / 0.6387 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.002661/0.3561, allocations: 1.458 MB / 0.8285 GB, free: 14.98 MB / 0.6544 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.002694/0.3588, allocations: 1.438 MB / 0.8299 GB, free: 13.54 MB / 0.6544 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.004701/0.3635, allocations: 2.215 MB / 0.832 GB, free: 11.3 MB / 0.6544 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.492e-06/0.3636, allocations: 0 / 0.832 GB, free: 11.3 MB / 0.6544 GB Notification: Performance of matching and sorting (n=70) (initialization): time 0.006342/0.3699, allocations: 2.983 MB / 0.8349 GB, free: 8.297 MB / 0.6544 GB Notification: Performance of prepare postOptimizeDAE: time 0.0001025/0.37, allocations: 79.38 kB / 0.835 GB, free: 8.207 MB / 0.6544 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.075e-06/0.3701, allocations: 0 / 0.835 GB, free: 8.207 MB / 0.6544 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.423e-05/0.3701, allocations: 4 kB / 0.835 GB, free: 8.203 MB / 0.6544 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001274/0.3714, allocations: 183.7 kB / 0.8352 GB, free: 8.023 MB / 0.6544 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.743e-05/0.3714, allocations: 7.984 kB / 0.8352 GB, free: 8.016 MB / 0.6544 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00172/0.3731, allocations: 111.4 kB / 0.8353 GB, free: 7.906 MB / 0.6544 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.000161/0.3733, allocations: 43.94 kB / 0.8353 GB, free: 7.863 MB / 0.6544 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 32 (speRat.nextEventScaled,speRat.nextEvent,$PRE.speRat.nextEvent,speRat.last,speRat.b,speRat.a,dryCoi.cooCap.checkBoundsTCon[4],$PRE.dryCoi.cooCap.checkBoundsTCon[4],dryCoi.cooCap.checkBoundsTCon[3],$PRE.dryCoi.cooCap.checkBoundsTCon[3],dryCoi.cooCap.checkBoundsTCon[2],$PRE.dryCoi.cooCap.checkBoundsTCon[2],dryCoi.cooCap.checkBoundsTCon[1],$PRE.dryCoi.cooCap.checkBoundsTCon[1],dryCoi.cooCap.checkBoundsTEva[4],$PRE.dryCoi.cooCap.checkBoundsTEva[4],dryCoi.cooCap.checkBoundsTEva[3],$PRE.dryCoi.cooCap.checkBoundsTEva[3],dryCoi.cooCap.checkBoundsTEva[2],$PRE.dryCoi.cooCap.checkBoundsTEva[2],dryCoi.cooCap.checkBoundsTEva[1],$PRE.dryCoi.cooCap.checkBoundsTEva[1],dryCoi.cooCap.stage,$whenCondition9,$whenCondition1,$whenCondition2,$whenCondition3,$whenCondition4,$whenCondition5,$whenCondition6,$whenCondition7,$whenCondition8) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (58): * Single equations (assignments): 56 * Array equations: 0 * Algorithm blocks: 2 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.001692/0.375, allocations: 0.7646 MB / 0.8361 GB, free: 7.082 MB / 0.6544 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0007766/0.3758, allocations: 173.9 kB / 0.8363 GB, free: 6.91 MB / 0.6544 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.006184/0.382, allocations: 2.656 MB / 0.8389 GB, free: 4.23 MB / 0.6544 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.294e-05/0.382, allocations: 8 kB / 0.8389 GB, free: 4.223 MB / 0.6544 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.068e-05/0.382, allocations: 0 / 0.8389 GB, free: 4.223 MB / 0.6544 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.514e-05/0.3821, allocations: 7.922 kB / 0.8389 GB, free: 4.215 MB / 0.6544 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.003872/0.3859, allocations: 2.306 MB / 0.8411 GB, free: 1.859 MB / 0.6544 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.08e-05/0.386, allocations: 0 / 0.8411 GB, free: 1.859 MB / 0.6544 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001287/0.3873, allocations: 179.7 kB / 0.8413 GB, free: 1.684 MB / 0.6544 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.03e-05/0.3873, allocations: 0 / 0.8413 GB, free: 1.684 MB / 0.6544 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001171/0.3874, allocations: 39.94 kB / 0.8413 GB, free: 1.645 MB / 0.6544 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 4.979e-06/0.3874, allocations: 0 / 0.8413 GB, free: 1.645 MB / 0.6544 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.876e-06/0.3874, allocations: 0 / 0.8413 GB, free: 1.645 MB / 0.6544 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.006054/0.3935, allocations: 2.559 MB / 0.8438 GB, free: 15.06 MB / 0.67 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001514/0.395, allocations: 0.5728 MB / 0.8444 GB, free: 14.46 MB / 0.67 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.000647/0.3957, allocations: 63.97 kB / 0.8445 GB, free: 14.4 MB / 0.67 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001809/0.3975, allocations: 119.8 kB / 0.8446 GB, free: 14.29 MB / 0.67 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000197/0.3977, allocations: 60.42 kB / 0.8446 GB, free: 14.23 MB / 0.67 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001541/0.3979, allocations: 47.94 kB / 0.8447 GB, free: 14.18 MB / 0.67 GB Notification: Performance of sorting global known variables: time 0.004342/0.4023, allocations: 1.927 MB / 0.8466 GB, free: 12.26 MB / 0.67 GB Notification: Performance of sort global known variables: time 1.4e-07/0.4023, allocations: 0 / 0.8466 GB, free: 12.26 MB / 0.67 GB Notification: Performance of remove unused functions: time 0.001806/0.4041, allocations: 375.8 kB / 0.8469 GB, free: 11.89 MB / 0.67 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 23 ($whenCondition8,$whenCondition7,$whenCondition6,$whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,$whenCondition9,dryCoi.cooCap.stage,dryCoi.cooCap.checkBoundsTEva[1],dryCoi.cooCap.checkBoundsTEva[2],dryCoi.cooCap.checkBoundsTEva[3],dryCoi.cooCap.checkBoundsTEva[4],dryCoi.cooCap.checkBoundsTCon[1],dryCoi.cooCap.checkBoundsTCon[2],dryCoi.cooCap.checkBoundsTCon[3],dryCoi.cooCap.checkBoundsTCon[4],speRat.a,speRat.b,speRat.last,speRat.nextEvent,speRat.nextEventScaled) * Number of discrete states: 9 (speRat.nextEvent,speRat.last,speRat.nextEventScaled,speRat.b,speRat.a,$whenCondition9,dryCoi.cooCap.stage,dryCoi.cooCap.checkBoundsTEva[dryCoi.cooCap.stage],dryCoi.cooCap.checkBoundsTCon[dryCoi.cooCap.stage]) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (56): * Single equations (assignments): 47 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 8 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.001068/0.4052, allocations: 265.9 kB / 0.8472 GB, free: 11.64 MB / 0.67 GB Notification: Performance of simCode: created initialization part: time 0.005773/0.411, allocations: 2.985 MB / 0.8501 GB, free: 8.625 MB / 0.67 GB Notification: Performance of simCode: created event and clocks part: time 4.629e-06/0.411, allocations: 0 / 0.8501 GB, free: 8.625 MB / 0.67 GB Notification: Performance of simCode: created simulation system equations: time 0.002695/0.4137, allocations: 1.346 MB / 0.8514 GB, free: 7.266 MB / 0.67 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002677/0.4164, allocations: 437.5 kB / 0.8518 GB, free: 6.836 MB / 0.67 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.009008/0.4254, allocations: 4.095 MB / 0.8558 GB, free: 2.707 MB / 0.67 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001624/0.4271, allocations: 1.572 MB / 0.8573 GB, free: 1.105 MB / 0.67 GB Notification: Performance of simCode: alias equations: time 0.002058/0.4291, allocations: 0.5714 MB / 0.8579 GB, free: 0.5312 MB / 0.67 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0007137/0.4299, allocations: 127.3 kB / 0.858 GB, free: 416 kB / 0.67 GB Notification: Performance of SimCode: time 1.012e-06/0.4299, allocations: 0 / 0.858 GB, free: 416 kB / 0.67 GB Notification: Performance of Templates: time 0.0563/0.4862, allocations: 31.92 MB / 0.8892 GB, free: 0.7461 MB / 0.7012 GB make -j1 -f Buildings_8_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.DryCoil.makefile (rm -f Buildings_8_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.DryCoil.pipe ; mkfifo Buildings_8_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.DryCoil.pipe ; head -c 1048576 < Buildings_8_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.DryCoil.pipe >> ../files/Buildings_8_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.DryCoil.sim & ./Buildings_8_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.DryCoil -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_8_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.DryCoil.pipe 2>&1)