Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr OpenIPSL_OpenIPSL.Tests.Controls.PSSE.ES.ESST1A.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/Modelica 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/OpenIPSL 3.0.1/package.mo", uses=false) Using package OpenIPSL with version 3.0.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/OpenIPSL 3.0.1/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 Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 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(OpenIPSL.Tests.Controls.PSSE.ES.ESST1A,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="OpenIPSL_OpenIPSL.Tests.Controls.PSSE.ES.ESST1A") translateModel(OpenIPSL.Tests.Controls.PSSE.ES.ESST1A,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="OpenIPSL_OpenIPSL.Tests.Controls.PSSE.ES.ESST1A") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.005003/0.005003, allocations: 100.8 kB / 15.73 MB, free: 5.992 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.338/1.338, allocations: 222.9 MB / 239.4 MB, free: 4.539 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001174/0.001174, allocations: 192.5 kB / 289.7 MB, free: 2.25 MB / 238.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/OpenIPSL 3.0.1/package.mo): time 0.4393/0.4393, allocations: 78.51 MB / 418.4 MB, free: 3.164 MB / 286.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001533/0.001533, allocations: 79.88 kB / 0.5536 GB, free: 0.9453 MB / 430.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2971/0.2987, allocations: 68.17 MB / 0.6202 GB, free: 9.652 MB / 430.1 MB Notification: Performance of NFInst.instantiate(OpenIPSL.Tests.Controls.PSSE.ES.ESST1A): time 0.006667/0.3054, allocations: 9.035 MB / 0.629 GB, free: 1.16 MB / 430.1 MB Notification: Performance of NFInst.instExpressions: time 0.005684/0.3111, allocations: 2.931 MB / 0.6319 GB, free: 14.22 MB / 446.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.001149/0.3123, allocations: 16 kB / 0.6319 GB, free: 14.2 MB / 446.1 MB Notification: Performance of NFTyping.typeComponents: time 0.0009338/0.3133, allocations: 364.8 kB / 0.6323 GB, free: 13.84 MB / 446.1 MB Notification: Performance of NFTyping.typeBindings: time 0.003539/0.3168, allocations: 1.268 MB / 0.6335 GB, free: 12.57 MB / 446.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.002034/0.3189, allocations: 0.9185 MB / 0.6344 GB, free: 11.66 MB / 446.1 MB Notification: Performance of NFFlatten.flatten: time 0.003487/0.3224, allocations: 2.799 MB / 0.6371 GB, free: 8.855 MB / 446.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.0007309/0.3231, allocations: 0.5344 MB / 0.6377 GB, free: 8.281 MB / 446.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.001191/0.3243, allocations: 1.054 MB / 0.6387 GB, free: 7.223 MB / 446.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.001371/0.3257, allocations: 1.292 MB / 0.6399 GB, free: 5.926 MB / 446.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0002843/0.326, allocations: 220 kB / 0.6402 GB, free: 5.711 MB / 446.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.0006542/0.3266, allocations: 403.8 kB / 0.6405 GB, free: 5.316 MB / 446.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0004407/0.3271, allocations: 0.5448 MB / 0.6411 GB, free: 4.77 MB / 446.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0008661/0.328, allocations: 1.061 MB / 0.6421 GB, free: 3.703 MB / 446.1 MB Notification: Performance of NFConvertDAE.convert: time 0.002569/0.3305, allocations: 2.696 MB / 0.6447 GB, free: 1 MB / 446.1 MB Notification: Performance of FrontEnd - DAE generated: time 4.979e-06/0.3306, allocations: 0 / 0.6447 GB, free: 1 MB / 446.1 MB Notification: Performance of FrontEnd: time 1.854e-06/0.3306, allocations: 0 / 0.6447 GB, free: 1 MB / 446.1 MB Notification: Performance of Transformations before backend: time 3.073e-05/0.3306, allocations: 0 / 0.6447 GB, free: 1 MB / 446.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 293 * Number of variables: 293 Notification: Performance of Generate backend data structure: time 0.01429/0.3449, allocations: 4.227 MB / 0.6489 GB, free: 12.71 MB / 462.1 MB Notification: Performance of prepare preOptimizeDAE: time 3.724e-05/0.3449, allocations: 15.97 kB / 0.6489 GB, free: 12.69 MB / 462.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.004557/0.3495, allocations: 0.7819 MB / 0.6496 GB, free: 11.91 MB / 462.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.00226/0.3518, allocations: 1.318 MB / 0.6509 GB, free: 10.54 MB / 462.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0004839/0.3523, allocations: 0.489 MB / 0.6514 GB, free: 9.969 MB / 462.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002257/0.3525, allocations: 124 kB / 0.6515 GB, free: 9.848 MB / 462.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.003204/0.3557, allocations: 1.664 MB / 0.6532 GB, free: 8.137 MB / 462.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 2.51e-05/0.3558, allocations: 4 kB / 0.6532 GB, free: 8.133 MB / 462.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001314/0.3559, allocations: 44 kB / 0.6532 GB, free: 8.09 MB / 462.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.988e-05/0.3559, allocations: 28 kB / 0.6532 GB, free: 8.062 MB / 462.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.003356/0.3593, allocations: 1.574 MB / 0.6548 GB, free: 6.48 MB / 462.1 MB 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 0.009065/0.3684, allocations: 5.491 MB / 0.6601 GB, free: 0.7773 MB / 462.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.00833/0.3767, allocations: 3.202 MB / 0.6632 GB, free: 13.44 MB / 478.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.001976/0.3787, allocations: 1.01 MB / 0.6642 GB, free: 12.43 MB / 478.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.0001485/0.3789, allocations: 25.22 kB / 0.6643 GB, free: 12.4 MB / 478.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.002411/0.3813, allocations: 1.184 MB / 0.6654 GB, free: 11.2 MB / 478.1 MB Notification: Performance of pre-optimization done (n=143): time 2.896e-06/0.3813, allocations: 0 / 0.6654 GB, free: 11.2 MB / 478.1 MB Notification: Performance of matching and sorting (n=143): time 0.04331/0.4246, allocations: 10.97 MB / 0.6761 GB, free: 160 kB / 478.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001237/0.4248, allocations: 183.5 kB / 0.6763 GB, free: 15.94 MB / 494.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002689/0.4275, allocations: 1.666 MB / 0.6779 GB, free: 14.27 MB / 494.1 MB Notification: Performance of collectPreVariables (initialization): time 0.0003396/0.4278, allocations: 57.7 kB / 0.678 GB, free: 14.21 MB / 494.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0005299/0.4284, allocations: 0.6991 MB / 0.6787 GB, free: 13.5 MB / 494.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0005387/0.4289, allocations: 0.5084 MB / 0.6792 GB, free: 12.98 MB / 494.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0006998/0.4296, allocations: 399.5 kB / 0.6795 GB, free: 12.59 MB / 494.1 MB Notification: Performance of setup shared object (initialization): time 9.15e-05/0.4297, allocations: 301.1 kB / 0.6798 GB, free: 12.29 MB / 494.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.002358/0.4321, allocations: 1.106 MB / 0.6809 GB, free: 11.17 MB / 494.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.002671/0.4348, allocations: 1.333 MB / 0.6822 GB, free: 9.777 MB / 494.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.004819/0.4396, allocations: 2.304 MB / 0.6845 GB, free: 7.422 MB / 494.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.009e-05/0.4396, allocations: 8 kB / 0.6845 GB, free: 7.414 MB / 494.1 MB Notification: Performance of matching and sorting (n=268) (initialization): time 0.009925/0.4496, allocations: 4.114 MB / 0.6885 GB, free: 3.285 MB / 494.1 MB Notification: Performance of prepare postOptimizeDAE: time 2.757e-05/0.4496, allocations: 8 kB / 0.6885 GB, free: 3.277 MB / 494.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.667e-05/0.4497, allocations: 4 kB / 0.6885 GB, free: 3.273 MB / 494.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.01058/0.4602, allocations: 3.202 MB / 0.6916 GB, free: 68 kB / 494.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001559/0.4618, allocations: 303.5 kB / 0.6919 GB, free: 15.77 MB / 0.4981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.007965/0.4698, allocations: 3.414 MB / 0.6953 GB, free: 12.33 MB / 0.4981 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002636/0.4725, allocations: 298 kB / 0.6955 GB, free: 12.04 MB / 0.4981 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003208/0.4728, allocations: 79.97 kB / 0.6956 GB, free: 11.96 MB / 0.4981 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.002914/0.4757, allocations: 1.308 MB / 0.6969 GB, free: 10.64 MB / 0.4981 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.002326/0.4781, allocations: 1.287 MB / 0.6981 GB, free: 9.297 MB / 0.4981 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.004354/0.4825, allocations: 2.249 MB / 0.7003 GB, free: 7 MB / 0.4981 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 4.739e-06/0.4825, allocations: 0 / 0.7003 GB, free: 7 MB / 0.4981 GB Notification: Performance of matching and sorting (n=268) (initialization_lambda0): time 0.01039/0.4929, allocations: 4.199 MB / 0.7044 GB, free: 2.785 MB / 0.4981 GB Notification: Performance of prepare postOptimizeDAE: time 1.582e-05/0.4929, allocations: 8 kB / 0.7045 GB, free: 2.777 MB / 0.4981 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.268e-06/0.4929, allocations: 4 kB / 0.7045 GB, free: 2.773 MB / 0.4981 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.009976/0.5029, allocations: 3.136 MB / 0.7075 GB, free: 15.63 MB / 0.5137 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001534/0.5045, allocations: 311.5 kB / 0.7078 GB, free: 15.33 MB / 0.5137 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.007122/0.5116, allocations: 3.209 MB / 0.711 GB, free: 12.09 MB / 0.5137 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002318/0.5139, allocations: 266.5 kB / 0.7112 GB, free: 11.83 MB / 0.5137 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001751/0.5141, allocations: 71.97 kB / 0.7113 GB, free: 11.76 MB / 0.5137 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 15 * Number of states: 0 () * Number of discrete variables: 2 ($whenCondition2,$whenCondition1) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (174): * Single equations (assignments): 173 * 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 {(34,61)} Notification: Performance of prepare postOptimizeDAE: time 0.0004105/0.5145, allocations: 264 kB / 0.7115 GB, free: 11.49 MB / 0.5137 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0003033/0.5148, allocations: 185.7 kB / 0.7117 GB, free: 11.31 MB / 0.5137 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0175/0.5324, allocations: 5.217 MB / 0.7168 GB, free: 6.07 MB / 0.5137 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.752e-05/0.5324, allocations: 16 kB / 0.7168 GB, free: 6.055 MB / 0.5137 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 9.487e-06/0.5324, allocations: 7.938 kB / 0.7168 GB, free: 6.047 MB / 0.5137 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.231e-05/0.5324, allocations: 11.97 kB / 0.7168 GB, free: 6.035 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 postOpt removeSimpleEquations (simulation): time 0.01913/0.5516, allocations: 7.527 MB / 0.7242 GB, free: 14.38 MB / 0.5294 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.016e-05/0.5516, allocations: 4 kB / 0.7242 GB, free: 14.37 MB / 0.5294 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0008748/0.5525, allocations: 171.7 kB / 0.7243 GB, free: 14.2 MB / 0.5294 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.00759/0.5601, allocations: 2.31 MB / 0.7266 GB, free: 11.89 MB / 0.5294 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001815/0.5603, allocations: 35.98 kB / 0.7266 GB, free: 11.85 MB / 0.5294 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.02859/0.5889, allocations: 12.61 MB / 0.739 GB, free: 14.95 MB / 0.545 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.969e-06/0.5889, allocations: 8.094 kB / 0.739 GB, free: 14.94 MB / 0.545 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01933/0.6083, allocations: 6.492 MB / 0.7453 GB, free: 8.406 MB / 0.545 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0007377/0.609, allocations: 306.4 kB / 0.7456 GB, free: 8.086 MB / 0.545 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0004834/0.6095, allocations: 31.98 kB / 0.7456 GB, free: 8.055 MB / 0.545 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001998/0.6115, allocations: 167.8 kB / 0.7458 GB, free: 7.891 MB / 0.545 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0009333/0.6125, allocations: 281.3 kB / 0.7461 GB, free: 7.617 MB / 0.545 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001643/0.6127, allocations: 43.98 kB / 0.7461 GB, free: 7.574 MB / 0.545 GB Notification: Performance of sorting global known variables: time 0.002077/0.6148, allocations: 1.125 MB / 0.7472 GB, free: 6.457 MB / 0.545 GB Notification: Performance of sort global known variables: time 1.91e-07/0.6148, allocations: 0 / 0.7472 GB, free: 6.457 MB / 0.545 GB Notification: Performance of remove unused functions: time 0.002589/0.6174, allocations: 0.9557 MB / 0.7481 GB, free: 5.5 MB / 0.545 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 3 * Number of states: 14 (gENCLS.omega,gENCLS.delta,gENCLS.eq,gENROE.w,gENROE.delta,gENROE.Epd,gENROE.Epq,gENROE.PSIkd,gENROE.PSIkq,eSST1A.imDerivativeLag.x,eSST1A.imLeadLag.TF.x_scaled[1],eSST1A.imLeadLag1.TF.x_scaled[1],eSST1A.simpleLagLim.state,eSST1A.TransducerDelay.state) * Number of discrete variables: 2 ($whenCondition1,$whenCondition2) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (91): * Single equations (assignments): 89 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * 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): 2 systems {(1,9), (26,23)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0003561/0.6177, allocations: 160.2 kB / 0.7483 GB, free: 5.332 MB / 0.545 GB Notification: Performance of simCode: created initialization part: time 0.01603/0.6338, allocations: 5.379 MB / 0.7535 GB, free: 15.95 MB / 0.5606 GB Notification: Performance of simCode: created event and clocks part: time 5.921e-06/0.6338, allocations: 0 / 0.7535 GB, free: 15.95 MB / 0.5606 GB Notification: Performance of simCode: created simulation system equations: time 0.006747/0.6406, allocations: 2.203 MB / 0.7557 GB, free: 13.72 MB / 0.5606 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001924/0.6425, allocations: 203.9 kB / 0.7559 GB, free: 13.53 MB / 0.5606 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.007305/0.6498, allocations: 3.517 MB / 0.7593 GB, free: 9.988 MB / 0.5606 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001069/0.6509, allocations: 1.337 MB / 0.7606 GB, free: 8.617 MB / 0.5606 GB Notification: Performance of simCode: alias equations: time 0.001015/0.652, allocations: 203.5 kB / 0.7608 GB, free: 8.414 MB / 0.5606 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004335/0.6524, allocations: 111.4 kB / 0.7609 GB, free: 8.305 MB / 0.5606 GB Notification: Performance of SimCode: time 6.82e-07/0.6524, allocations: 0 / 0.7609 GB, free: 8.305 MB / 0.5606 GB Notification: Performance of Templates: time 0.3091/0.9615, allocations: 43 MB / 0.8029 GB, free: 115.4 MB / 0.5606 GB make -j1 -f OpenIPSL_OpenIPSL.Tests.Controls.PSSE.ES.ESST1A.makefile (rm -f OpenIPSL_OpenIPSL.Tests.Controls.PSSE.ES.ESST1A.pipe ; mkfifo OpenIPSL_OpenIPSL.Tests.Controls.PSSE.ES.ESST1A.pipe ; head -c 1048576 < OpenIPSL_OpenIPSL.Tests.Controls.PSSE.ES.ESST1A.pipe >> ../files/OpenIPSL_OpenIPSL.Tests.Controls.PSSE.ES.ESST1A.sim & ./OpenIPSL_OpenIPSL.Tests.Controls.PSSE.ES.ESST1A -abortSlowSimulation -alarm=480 -lv LOG_STATS > OpenIPSL_OpenIPSL.Tests.Controls.PSSE.ES.ESST1A.pipe 2>&1)