Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr EHPTlib_latest_EHPTlib.MapBased.TestingModels.TestOneFlange.TestOneFlange2.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/EHPTlib 2.1.4-main/package.mo", uses=false) Using package EHPTlib with version 2.1.4 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/EHPTlib 2.1.4-main/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(EHPTlib.MapBased.TestingModels.TestOneFlange.TestOneFlange2,fileNamePrefix="EHPTlib_latest_EHPTlib_MapBased_TestingModels_TestOneFlange_TestOneFlange2",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(EHPTlib.MapBased.TestingModels.TestOneFlange.TestOneFlange2,fileNamePrefix="EHPTlib_latest_EHPTlib_MapBased_TestingModels_TestOneFlange_TestOneFlange2",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 0.001552/0.001552, allocations: 108 kB / 15.6 MB, free: 132 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.00183/0.00183, allocations: 194.4 kB / 16.53 MB, free: 6.391 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.508/1.508, allocations: 222.9 MB / 240.2 MB, free: 4.27 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/EHPTlib 2.1.4-main/package.mo): time 0.1934/0.1934, allocations: 8.945 MB / 299.3 MB, free: 2.094 MB / 238.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001979/0.001979, allocations: 59.91 kB / 361.9 MB, free: 12.99 MB / 302.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1113/0.1132, allocations: 51.5 MB / 413.4 MB, free: 9.457 MB / 350.1 MB Notification: Performance of NFInst.instantiate(EHPTlib.MapBased.TestingModels.TestOneFlange.TestOneFlange2): time 0.009287/0.1226, allocations: 5.146 MB / 418.6 MB, free: 4.281 MB / 350.1 MB Notification: Performance of NFInst.instExpressions: time 0.00447/0.1271, allocations: 2.086 MB / 420.7 MB, free: 2.188 MB / 350.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0008727/0.128, allocations: 12 kB / 420.7 MB, free: 2.176 MB / 350.1 MB Notification: Performance of NFTyping.typeComponents: time 0.0006836/0.1288, allocations: 206.6 kB / 420.9 MB, free: 1.973 MB / 350.1 MB Notification: Performance of NFTyping.typeBindings: time 0.0009506/0.1297, allocations: 234.3 kB / 421.1 MB, free: 1.742 MB / 350.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.0009454/0.1307, allocations: 367.4 kB / 421.5 MB, free: 1.383 MB / 350.1 MB Notification: Performance of NFFlatten.flatten: time 0.001343/0.132, allocations: 0.9704 MB / 422.4 MB, free: 420 kB / 350.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.1964/0.3284, allocations: 473.7 kB / 422.9 MB, free: 36.84 MB / 350.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0008483/0.3293, allocations: 371.5 kB / 423.3 MB, free: 36.81 MB / 350.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.0007795/0.3301, allocations: 423.5 kB / 423.7 MB, free: 36.73 MB / 350.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0003009/0.3305, allocations: 106.1 kB / 423.8 MB, free: 36.73 MB / 350.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.0004605/0.3309, allocations: 168.2 kB / 423.9 MB, free: 36.73 MB / 350.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0002508/0.3312, allocations: 214.2 kB / 424.1 MB, free: 36.7 MB / 350.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0005429/0.3317, allocations: 435.9 kB / 424.6 MB, free: 36.57 MB / 350.1 MB Notification: Performance of NFConvertDAE.convert: time 0.001297/0.3331, allocations: 1.108 MB / 425.7 MB, free: 36.45 MB / 350.1 MB Notification: Performance of FrontEnd - DAE generated: time 5.129e-06/0.3331, allocations: 1.031 kB / 425.7 MB, free: 36.45 MB / 350.1 MB Notification: Performance of FrontEnd: time 2.695e-06/0.3331, allocations: 0 / 425.7 MB, free: 36.45 MB / 350.1 MB Notification: Performance of Transformations before backend: time 4.275e-05/0.3331, allocations: 2.438 kB / 425.7 MB, free: 36.45 MB / 350.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 164 * Number of variables: 164 Notification: Performance of Generate backend data structure: time 0.002329/0.3355, allocations: 1.197 MB / 426.9 MB, free: 35.72 MB / 350.1 MB Notification: Performance of prepare preOptimizeDAE: time 4.382e-05/0.3355, allocations: 11.77 kB / 426.9 MB, free: 35.72 MB / 350.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001509/0.3357, allocations: 113.8 kB / 427 MB, free: 35.68 MB / 350.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0001973/0.3359, allocations: 93.84 kB / 427.1 MB, free: 35.64 MB / 350.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0006959/0.3366, allocations: 0.4954 MB / 427.6 MB, free: 35.37 MB / 350.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001117/0.3367, allocations: 79.42 kB / 427.7 MB, free: 35.34 MB / 350.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 9.682e-05/0.3368, allocations: 77.72 kB / 427.7 MB, free: 35.33 MB / 350.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001314/0.3381, allocations: 0.7053 MB / 428.5 MB, free: 35.24 MB / 350.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 2.891e-05/0.3382, allocations: 2.344 kB / 428.5 MB, free: 35.24 MB / 350.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 6.32e-05/0.3383, allocations: 34.19 kB / 428.5 MB, free: 35.24 MB / 350.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.429e-05/0.3383, allocations: 16.12 kB / 428.5 MB, free: 35.24 MB / 350.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001276/0.3396, allocations: 0.5176 MB / 429 MB, free: 35.23 MB / 350.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.00358/0.3431, allocations: 2.608 MB / 431.6 MB, free: 34.27 MB / 350.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.0009643/0.3441, allocations: 472 kB / 432.1 MB, free: 34.15 MB / 350.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0004033/0.3445, allocations: 193.6 kB / 432.3 MB, free: 34.14 MB / 350.1 MB Notification: Performance of preOpt evalFunc (simulation): time 4.281e-05/0.3446, allocations: 3.312 kB / 432.3 MB, free: 34.14 MB / 350.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0006389/0.3452, allocations: 281 kB / 432.6 MB, free: 34.08 MB / 350.1 MB Notification: Performance of pre-optimization done (n=36): time 3.016e-06/0.3453, allocations: 0 / 432.6 MB, free: 34.08 MB / 350.1 MB Notification: Performance of matching and sorting (n=36): time 0.001602/0.3469, allocations: 0.7612 MB / 433.3 MB, free: 33.72 MB / 350.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 6.445e-05/0.3469, allocations: 167.9 kB / 433.5 MB, free: 33.53 MB / 350.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0006153/0.3476, allocations: 0.5866 MB / 434.1 MB, free: 33.27 MB / 350.1 MB Notification: Performance of collectPreVariables (initialization): time 3.936e-05/0.3476, allocations: 39.89 kB / 434.1 MB, free: 33.23 MB / 350.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0002154/0.3478, allocations: 364.1 kB / 434.5 MB, free: 32.94 MB / 350.1 MB Notification: Performance of collectInitialBindings (initialization): time 8.696e-05/0.3479, allocations: 118.8 kB / 434.6 MB, free: 32.85 MB / 350.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001458/0.3481, allocations: 104.8 kB / 434.7 MB, free: 32.79 MB / 350.1 MB Notification: Performance of setup shared object (initialization): time 8.4e-05/0.3482, allocations: 363.6 kB / 435 MB, free: 32.46 MB / 350.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0004272/0.3486, allocations: 190.2 kB / 435.2 MB, free: 32.39 MB / 350.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.000459/0.3491, allocations: 309.5 kB / 435.5 MB, free: 32.18 MB / 350.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.0008801/0.35, allocations: 0.6121 MB / 436.1 MB, free: 31.74 MB / 350.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.158e-06/0.35, allocations: 0 / 436.1 MB, free: 31.74 MB / 350.1 MB Notification: Performance of matching and sorting (n=59) (initialization): time 0.001197/0.3512, allocations: 0.6819 MB / 436.8 MB, free: 31.41 MB / 350.1 MB Notification: Performance of prepare postOptimizeDAE: time 4.528e-05/0.3512, allocations: 93.52 kB / 436.9 MB, free: 31.32 MB / 350.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.977e-06/0.3513, allocations: 3.219 kB / 436.9 MB, free: 31.32 MB / 350.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.0001635/0.3514, allocations: 25.14 kB / 436.9 MB, free: 31.3 MB / 350.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003764/0.3518, allocations: 107.7 kB / 437 MB, free: 31.3 MB / 350.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.000755/0.3526, allocations: 1.376 MB / 438.4 MB, free: 29.9 MB / 350.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004895/0.3531, allocations: 83.86 kB / 438.5 MB, free: 29.86 MB / 350.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.13e-05/0.3531, allocations: 24.16 kB / 438.5 MB, free: 29.86 MB / 350.1 MB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0005485/0.3537, allocations: 349.7 kB / 438.9 MB, free: 29.66 MB / 350.1 MB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0004242/0.3541, allocations: 299.2 kB / 439.2 MB, free: 29.46 MB / 350.1 MB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0007736/0.3549, allocations: 0.5788 MB / 439.7 MB, free: 29.03 MB / 350.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 4.318e-06/0.3549, allocations: 0.625 kB / 439.7 MB, free: 29.03 MB / 350.1 MB Notification: Performance of matching and sorting (n=59) (initialization_lambda0): time 0.001078/0.356, allocations: 0.6612 MB / 440.4 MB, free: 28.7 MB / 350.1 MB Notification: Performance of prepare postOptimizeDAE: time 3.852e-05/0.3561, allocations: 94.67 kB / 440.5 MB, free: 28.6 MB / 350.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.7e-06/0.3561, allocations: 3.125 kB / 440.5 MB, free: 28.6 MB / 350.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 8.014e-05/0.3561, allocations: 27.77 kB / 440.5 MB, free: 28.59 MB / 350.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003381/0.3565, allocations: 97.42 kB / 440.6 MB, free: 28.59 MB / 350.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0006342/0.3571, allocations: 1.381 MB / 442 MB, free: 27.18 MB / 350.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004682/0.3576, allocations: 75.34 kB / 442.1 MB, free: 27.16 MB / 350.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.984e-05/0.3577, allocations: 26.22 kB / 442.1 MB, free: 27.15 MB / 350.1 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 15 * Number of states: 0 () * Number of discrete variables: 8 (oneFlange.limTau.state,oneFlange.limitingTorque,tauRef.count,$PRE.tauRef.count,tauRef.T_start,$PRE.tauRef.T_start,$whenCondition1,oneFlange.pDC.integrator1.local_reset) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (56): * Single equations (assignments): 52 * Array equations: 0 * Algorithm blocks: 3 * 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 prepare postOptimizeDAE: time 0.0001855/0.3579, allocations: 277.5 kB / 442.4 MB, free: 26.88 MB / 350.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001134/0.358, allocations: 56.56 kB / 442.4 MB, free: 26.86 MB / 350.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001085/0.3591, allocations: 0.5453 MB / 443 MB, free: 26.59 MB / 350.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.979e-06/0.3591, allocations: 3.125 kB / 443 MB, free: 26.59 MB / 350.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.447e-06/0.3591, allocations: 0 / 443 MB, free: 26.59 MB / 350.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.431e-06/0.3591, allocations: 0 / 443 MB, free: 26.59 MB / 350.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001814/0.3609, allocations: 1.259 MB / 444.2 MB, free: 25.87 MB / 350.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.985e-06/0.3609, allocations: 0 / 444.2 MB, free: 25.87 MB / 350.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003217/0.3613, allocations: 71.97 kB / 444.3 MB, free: 25.87 MB / 350.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 8.345e-05/0.3614, allocations: 26.55 kB / 444.3 MB, free: 25.85 MB / 350.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.274e-05/0.3614, allocations: 14.36 kB / 444.3 MB, free: 25.84 MB / 350.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0006689/0.3621, allocations: 1.366 MB / 445.7 MB, free: 24.45 MB / 350.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.252e-06/0.3621, allocations: 0 / 445.7 MB, free: 24.45 MB / 350.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001525/0.3636, allocations: 0.8521 MB / 446.6 MB, free: 23.98 MB / 350.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0001848/0.3638, allocations: 182.6 kB / 446.7 MB, free: 23.82 MB / 350.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 8.207e-05/0.3639, allocations: 9.781 kB / 446.7 MB, free: 23.82 MB / 350.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0004101/0.3643, allocations: 49.7 kB / 446.8 MB, free: 23.81 MB / 350.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000112/0.3645, allocations: 37.92 kB / 446.8 MB, free: 23.8 MB / 350.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.999e-05/0.3645, allocations: 16.72 kB / 446.8 MB, free: 23.79 MB / 350.1 MB Notification: Performance of sorting global known variables: time 0.0004276/0.3649, allocations: 420.6 kB / 447.3 MB, free: 23.61 MB / 350.1 MB Notification: Performance of sort global known variables: time 2.2e-07/0.3649, allocations: 3.219 kB / 447.3 MB, free: 23.61 MB / 350.1 MB Notification: Performance of remove unused functions: time 0.0008752/0.3658, allocations: 287.6 kB / 447.5 MB, free: 23.54 MB / 350.1 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 3 (inertia.w,loadTorque.phi,oneFlange.pDC.integrator1.y) * Number of discrete variables: 5 ($whenCondition1,tauRef.T_start,tauRef.count,oneFlange.limitingTorque,oneFlange.limTau.state) * Number of discrete states: 2 (tauRef.count,oneFlange.limTau.state) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (34): * Single equations (assignments): 29 * Array equations: 0 * Algorithm blocks: 2 * Record equations: 0 * When equations: 2 * 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 0.002914/0.3687, allocations: 1.694 MB / 449.2 MB, free: 22.48 MB / 350.1 MB Notification: Performance of simCode: created initialization part: time 0.002125/0.3709, allocations: 1.292 MB / 450.5 MB, free: 21.65 MB / 350.1 MB Notification: Performance of simCode: created event and clocks part: time 4.499e-06/0.3709, allocations: 0 / 450.5 MB, free: 21.65 MB / 350.1 MB Notification: Performance of simCode: created simulation system equations: time 0.0006039/0.3715, allocations: 446 kB / 451 MB, free: 21.35 MB / 350.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0006564/0.3722, allocations: 90.84 kB / 451.1 MB, free: 21.32 MB / 350.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.008445/0.3806, allocations: 5.599 MB / 456.7 MB, free: 18.02 MB / 350.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004468/0.3811, allocations: 0.9093 MB / 457.6 MB, free: 17.3 MB / 350.1 MB Notification: Performance of simCode: alias equations: time 0.0003278/0.3815, allocations: 73.14 kB / 457.6 MB, free: 17.27 MB / 350.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0003093/0.3818, allocations: 240.7 kB / 457.9 MB, free: 17.09 MB / 350.1 MB Notification: Performance of SimCode: time 1.373e-06/0.3818, allocations: 0 / 457.9 MB, free: 17.09 MB / 350.1 MB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.05323/0.4351, allocations: 13.54 MB / 471.4 MB, free: 15.65 MB / 350.1 MB Notification: Performance of buildModelFMU: Generate platform static: time 10.03/10.47, allocations: 9.109 kB / 471.4 MB, free: 15.64 MB / 350.1 MB (rm -f EHPTlib_latest_EHPTlib.MapBased.TestingModels.TestOneFlange.TestOneFlange2.pipe ; mkfifo EHPTlib_latest_EHPTlib.MapBased.TestingModels.TestOneFlange.TestOneFlange2.pipe ; head -c 1048576 < EHPTlib_latest_EHPTlib.MapBased.TestingModels.TestOneFlange.TestOneFlange2.pipe >> ../files/EHPTlib_latest_EHPTlib.MapBased.TestingModels.TestOneFlange.TestOneFlange2.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_EHPTlib_latest_EHPTlib_MapBased_TestingModels_TestOneFlange_TestOneFlange2_fmu --startTime=0 --stopTime=50 --timeout=50 --tolerance=1e-06 EHPTlib_latest_EHPTlib_MapBased_TestingModels_TestOneFlange_TestOneFlange2.fmu > EHPTlib_latest_EHPTlib.MapBased.TestingModels.TestOneFlange.TestOneFlange2.pipe 2>&1)