Running: ./testmodel.py --libraries=/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ --ompython_omhome=/usr ModelicaTestOverdetermined_ModelicaTestOverdetermined.ConsistentInitialization.Fluid.TwoVolumesFullInitial.conf.json
loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false)
loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false)
loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false)
loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaTestOverdetermined 4.0.0-master/package.mo", uses=false)
Using package ModelicaTestOverdetermined with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaTestOverdetermined 4.0.0-master/package.mo)
Using package ModelicaServices with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo)
Using package Modelica with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo)
Using package Complex with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo)
Running command: translateModel(ModelicaTestOverdetermined.ConsistentInitialization.Fluid.TwoVolumesFullInitial,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="ModelicaTestOverdetermined_ModelicaTestOverdetermined.ConsistentInitialization.Fluid.TwoVolumesFullInitial")
translateModel(ModelicaTestOverdetermined.ConsistentInitialization.Fluid.TwoVolumesFullInitial,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="ModelicaTestOverdetermined_ModelicaTestOverdetermined.ConsistentInitialization.Fluid.TwoVolumesFullInitial")
Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.0009297/0.0009298, allocations: 177.7 kB / 15.43 MB, free: 5.395 MB / 13.93 MB
Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.357/1.357, allocations: 225.7 MB / 241.9 MB, free: 14.65 MB / 202.7 MB
Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.000716/0.000716, allocations: 96.72 kB / 293 MB, free: 4.875 MB / 234.7 MB
Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaTestOverdetermined 4.0.0-master/package.mo): time 0.002272/0.002272, allocations: 0.5683 MB / 344.8 MB, free: 11.23 MB / 282.7 MB
Notification: Performance of FrontEnd - loaded program: time 0.0002966/0.0002966, allocations: 8 kB / 406 MB, free: 13.83 MB / 346.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1966/0.1969, allocations: 50.56 MB / 456.6 MB, free: 78.95 MB / 346.7 MB
Notification: Performance of NFInst.instantiate(ModelicaTestOverdetermined.ConsistentInitialization.Fluid.TwoVolumesFullInitial): time 0.3227/0.5197, allocations: 173.6 MB / 0.6154 GB, free: 2.309 MB / 394.7 MB
Notification: Performance of NFInst.instExpressions: time 0.005824/0.5256, allocations: 4.868 MB / 0.6202 GB, free: 15.65 MB / 410.7 MB
Notification: Performance of NFInst.updateImplicitVariability: time 0.0005787/0.5262, allocations: 26.22 kB / 0.6202 GB, free: 15.64 MB / 410.7 MB
Notification: Performance of NFTyping.typeComponents: time 0.0008868/0.5271, allocations: 349 kB / 0.6205 GB, free: 15.45 MB / 410.7 MB
Notification: Performance of NFTyping.typeBindings: time 0.003446/0.5305, allocations: 1.447 MB / 0.6219 GB, free: 14.78 MB / 410.7 MB
Notification: Performance of NFTyping.typeClassSections: time 0.002443/0.533, allocations: 0.9872 MB / 0.6229 GB, free: 14.5 MB / 410.7 MB
Notification: Performance of NFFlatten.flatten: time 0.003324/0.5363, allocations: 3.422 MB / 0.6262 GB, free: 13.46 MB / 410.7 MB
Notification: Performance of NFFlatten.resolveConnections: time 0.000763/0.5371, allocations: 0.5171 MB / 0.6267 GB, free: 13.24 MB / 410.7 MB
Notification: Performance of NFEvalConstants.evaluate: time 0.001523/0.5386, allocations: 0.9067 MB / 0.6276 GB, free: 13.01 MB / 410.7 MB
Notification: Performance of NFSimplifyModel.simplify: time 0.0008588/0.5395, allocations: 0.7627 MB / 0.6284 GB, free: 12.83 MB / 410.7 MB
Notification: Performance of NFPackage.collectConstants: time 0.0001183/0.5396, allocations: 41.47 kB / 0.6284 GB, free: 12.83 MB / 410.7 MB
Notification: Performance of NFFlatten.collectFunctions: time 0.001887/0.5415, allocations: 0.8615 MB / 0.6293 GB, free: 12.62 MB / 410.7 MB
Notification: Performance of NFScalarize.scalarize: time 0.0002724/0.5418, allocations: 286.9 kB / 0.6295 GB, free: 12.54 MB / 410.7 MB
Notification: Performance of NFVerifyModel.verify: time 0.000461/0.5423, allocations: 488.9 kB / 0.63 GB, free: 12.46 MB / 410.7 MB
Notification: Performance of NFConvertDAE.convert: time 0.00182/0.5441, allocations: 1.685 MB / 0.6316 GB, free: 11.81 MB / 410.7 MB
Notification: Performance of FrontEnd - DAE generated: time 3.497e-06/0.5441, allocations: 3.938 kB / 0.6316 GB, free: 11.81 MB / 410.7 MB
Notification: Performance of FrontEnd: time 1.333e-06/0.5441, allocations: 0 / 0.6316 GB, free: 11.81 MB / 410.7 MB
Notification: Performance of Transformations before backend: time 1.01e-05/0.5441, allocations: 0 / 0.6316 GB, free: 11.81 MB / 410.7 MB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 178
 * Number of variables: 178
Notification: Performance of Generate backend data structure: time 0.001992/0.5461, allocations: 1.104 MB / 0.6327 GB, free: 11.04 MB / 410.7 MB
Notification: Performance of prepare preOptimizeDAE: time 3.024e-05/0.5462, allocations: 12.06 kB / 0.6327 GB, free: 11.04 MB / 410.7 MB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0009573/0.5471, allocations: 166.3 kB / 0.6329 GB, free: 10.98 MB / 410.7 MB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.0007502/0.5479, allocations: 0.5661 MB / 0.6334 GB, free: 10.6 MB / 410.7 MB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.000124/0.548, allocations: 180.8 kB / 0.6336 GB, free: 10.47 MB / 410.7 MB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001055/0.5481, allocations: 67.44 kB / 0.6337 GB, free: 10.47 MB / 410.7 MB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.001421/0.5496, allocations: 1.088 MB / 0.6347 GB, free: 9.953 MB / 410.7 MB
Notification: Performance of preOpt findStateOrder (simulation): time 2.353e-05/0.5496, allocations: 15.09 kB / 0.6348 GB, free: 9.941 MB / 410.7 MB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 8.448e-05/0.5497, allocations: 34.66 kB / 0.6348 GB, free: 9.941 MB / 410.7 MB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.78e-05/0.5497, allocations: 32.16 kB / 0.6348 GB, free: 9.941 MB / 410.7 MB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001082/0.5508, allocations: 0.7789 MB / 0.6356 GB, free: 9.789 MB / 410.7 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 0.005005/0.5558, allocations: 5.717 MB / 0.6412 GB, free: 5.23 MB / 410.7 MB
Notification: Performance of preOpt comSubExp (simulation): time 0.0005894/0.5564, allocations: 388.3 kB / 0.6415 GB, free: 5.16 MB / 410.7 MB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0002916/0.5568, allocations: 225.1 kB / 0.6418 GB, free: 5.125 MB / 410.7 MB
Notification: Performance of preOpt evalFunc (simulation): time 0.0002089/0.557, allocations: 262.8 kB / 0.642 GB, free: 4.832 MB / 410.7 MB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.319e-05/0.557, allocations: 42.56 kB / 0.642 GB, free: 4.793 MB / 410.7 MB
Notification: Performance of pre-optimization done (n=44): time 1.733e-06/0.557, allocations: 0 / 0.642 GB, free: 4.793 MB / 410.7 MB
Warning: Some equations could not be differentiated for following variables having attribute stateSelect=StateSelect.prefer. They will be treated as if they had stateSelect=StateSelect.default
========================================
1: V1.medium.T
2: V2.medium.T
Please use -d=bltdump for more information.
Notification: Performance of matching and sorting (n=55): time 0.009148/0.5662, allocations: 3.023 MB / 0.645 GB, free: 2.305 MB / 410.7 MB
Notification: Performance of inlineWhenForInitialization (initialization): time 5.929e-05/0.5662, allocations: 113.1 kB / 0.6451 GB, free: 2.168 MB / 410.7 MB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0006769/0.5669, allocations: 0.6751 MB / 0.6458 GB, free: 1.633 MB / 410.7 MB
Notification: Performance of collectPreVariables (initialization): time 4.921e-05/0.567, allocations: 38.77 kB / 0.6458 GB, free: 1.598 MB / 410.7 MB
Notification: Performance of collectInitialEqns (initialization): time 0.0002707/0.5673, allocations: 459.2 kB / 0.6462 GB, free: 1.25 MB / 410.7 MB
Notification: Performance of collectInitialBindings (initialization): time 0.0001425/0.5674, allocations: 203.4 kB / 0.6464 GB, free: 1.078 MB / 410.7 MB
Notification: Performance of simplifyInitialFunctions (initialization): time 4.789e-05/0.5675, allocations: 21.62 kB / 0.6465 GB, free: 1.074 MB / 410.7 MB
Notification: Performance of setup shared object (initialization): time 0.0001509/0.5676, allocations: 386.2 kB / 0.6468 GB, free: 0.7188 MB / 410.7 MB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0004323/0.5681, allocations: 284.2 kB / 0.6471 GB, free: 0.5273 MB / 410.7 MB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0007422/0.5688, allocations: 0.7584 MB / 0.6478 GB, free: 15.65 MB / 426.7 MB
Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: V1.medium.p = V1.p_start (V2.p_start = V1.p_start)
Notification: Performance of analyzeInitialSystem (initialization): time 0.0156/0.5844, allocations: 3.623 MB / 0.6514 GB, free: 12.21 MB / 426.7 MB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.493e-06/0.5844, allocations: 4 kB / 0.6514 GB, free: 12.2 MB / 426.7 MB
Notification: Performance of matching and sorting (n=131) (initialization): time 0.00173/0.5862, allocations: 1.211 MB / 0.6526 GB, free: 11.26 MB / 426.7 MB
Notification: Performance of prepare postOptimizeDAE: time 2.082e-05/0.5862, allocations: 16.06 kB / 0.6526 GB, free: 11.25 MB / 426.7 MB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.577e-05/0.5862, allocations: 19.94 kB / 0.6526 GB, free: 11.23 MB / 426.7 MB
Notification: Performance of postOpt tearingSystem (initialization): time 0.0009436/0.5872, allocations: 290.5 kB / 0.6529 GB, free: 10.98 MB / 426.7 MB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005891/0.5878, allocations: 207.9 kB / 0.6531 GB, free: 10.79 MB / 426.7 MB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0009484/0.5887, allocations: 0.9135 MB / 0.654 GB, free: 9.977 MB / 426.7 MB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0006477/0.5894, allocations: 66.31 kB / 0.654 GB, free: 9.93 MB / 426.7 MB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001137/0.5895, allocations: 101.2 kB / 0.6541 GB, free: 9.84 MB / 426.7 MB
Warning: The initial conditions are over specified. The following 1 initial equations are redundant, so they are removed from the initialization sytem:
         V1.medium.p = V1.p_start.
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 74
 * Number of states: 0 ()
 * Number of discrete variables: 8 (V1.regularFlow[1],V1.regularFlow[2],V2.regularFlow[1],V2.regularFlow[2],V2.inFlow[2],V2.inFlow[1],V1.inFlow[2],V1.inFlow[1])
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (113):
 * Single equations (assignments): 112
 * 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
   {(3,16)}
Notification: Performance of prepare postOptimizeDAE: time 0.0003727/0.5899, allocations: 305.3 kB / 0.6544 GB, free: 9.598 MB / 426.7 MB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001189/0.59, allocations: 79.06 kB / 0.6545 GB, free: 9.52 MB / 426.7 MB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002318/0.5924, allocations: 1.199 MB / 0.6557 GB, free: 8.574 MB / 426.7 MB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.055e-06/0.5924, allocations: 11.92 kB / 0.6557 GB, free: 8.562 MB / 426.7 MB
Notification: Performance of postOpt constantLinearSystem (simulation): time 4.559e-06/0.5924, allocations: 0 / 0.6557 GB, free: 8.562 MB / 426.7 MB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.953e-06/0.5924, allocations: 4 kB / 0.6557 GB, free: 8.559 MB / 426.7 MB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002715/0.5951, allocations: 1.979 MB / 0.6576 GB, free: 6.891 MB / 426.7 MB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.391e-06/0.5951, allocations: 4 kB / 0.6576 GB, free: 6.887 MB / 426.7 MB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003111/0.5955, allocations: 91.2 kB / 0.6577 GB, free: 6.801 MB / 426.7 MB
Notification: Performance of postOpt tearingSystem (simulation): time 0.001598/0.5971, allocations: 295.8 kB / 0.658 GB, free: 6.547 MB / 426.7 MB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 6.358e-05/0.5971, allocations: 33.86 kB / 0.658 GB, free: 6.523 MB / 426.7 MB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0009418/0.5981, allocations: 0.8544 MB / 0.6588 GB, free: 5.754 MB / 426.7 MB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.034e-06/0.5981, allocations: 0 / 0.6588 GB, free: 5.754 MB / 426.7 MB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001807/0.5999, allocations: 1.13 MB / 0.6599 GB, free: 4.871 MB / 426.7 MB
Notification: Performance of postOpt removeConstants (simulation): time 0.0003035/0.6002, allocations: 229 kB / 0.6602 GB, free: 4.66 MB / 426.7 MB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001128/0.6004, allocations: 10.69 kB / 0.6602 GB, free: 4.656 MB / 426.7 MB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0004976/0.6009, allocations: 41.47 kB / 0.6602 GB, free: 4.625 MB / 426.7 MB
Notification: Performance of postOpt findZeroCrossings (simulation): time 9.161e-05/0.601, allocations: 49 kB / 0.6603 GB, free: 4.582 MB / 426.7 MB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 8.931e-05/0.6011, allocations: 66.91 kB / 0.6603 GB, free: 4.523 MB / 426.7 MB
Notification: Performance of sorting global known variables: time 0.000495/0.6016, allocations: 467.2 kB / 0.6608 GB, free: 4.172 MB / 426.7 MB
Notification: Performance of sort global known variables: time 1.5e-07/0.6016, allocations: 0 / 0.6608 GB, free: 4.172 MB / 426.7 MB
Notification: Performance of remove unused functions: time 0.001063/0.6026, allocations: 349.8 kB / 0.6611 GB, free: 3.863 MB / 426.7 MB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 6
 * Number of states: 3 (V1.medium.T,V2.medium.p,V2.medium.T)
 * 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 (44):
 * Single equations (assignments): 43
 * 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
   {(4,13)}
Notification: Performance of Backend phase and start with SimCode phase: time 0.0009698/0.6036, allocations: 407.4 kB / 0.6615 GB, free: 3.5 MB / 426.7 MB
Notification: Performance of simCode: created initialization part: time 0.001381/0.605, allocations: 0.7743 MB / 0.6622 GB, free: 2.902 MB / 426.7 MB
Notification: Performance of simCode: created event and clocks part: time 6.983e-06/0.605, allocations: 8 kB / 0.6623 GB, free: 2.895 MB / 426.7 MB
Notification: Performance of simCode: created simulation system equations: time 0.0007474/0.6058, allocations: 334.6 kB / 0.6626 GB, free: 2.645 MB / 426.7 MB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001875/0.6077, allocations: 394.7 kB / 0.663 GB, free: 2.332 MB / 426.7 MB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0026/0.6103, allocations: 1.998 MB / 0.6649 GB, free: 460 kB / 426.7 MB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005338/0.6108, allocations: 0.9891 MB / 0.6659 GB, free: 15.45 MB / 442.7 MB
Notification: Performance of simCode: alias equations: time 0.001562/0.6124, allocations: 0.5829 MB / 0.6664 GB, free: 14.86 MB / 442.7 MB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0003711/0.6128, allocations: 125.6 kB / 0.6666 GB, free: 14.74 MB / 442.7 MB
Notification: Performance of SimCode: time 3.71e-07/0.6128, allocations: 0 / 0.6666 GB, free: 14.74 MB / 442.7 MB
Notification: Performance of Templates: time 0.02948/0.6423, allocations: 19.94 MB / 0.686 GB, free: 11.01 MB / 458.7 MB
make -j1 -f ModelicaTestOverdetermined_ModelicaTestOverdetermined.ConsistentInitialization.Fluid.TwoVolumesFullInitial.makefile
(rm -f ModelicaTestOverdetermined_ModelicaTestOverdetermined.ConsistentInitialization.Fluid.TwoVolumesFullInitial.pipe ; mkfifo ModelicaTestOverdetermined_ModelicaTestOverdetermined.ConsistentInitialization.Fluid.TwoVolumesFullInitial.pipe ; head -c 1048576 < ModelicaTestOverdetermined_ModelicaTestOverdetermined.ConsistentInitialization.Fluid.TwoVolumesFullInitial.pipe >> ../files/ModelicaTestOverdetermined_ModelicaTestOverdetermined.ConsistentInitialization.Fluid.TwoVolumesFullInitial.sim & ./ModelicaTestOverdetermined_ModelicaTestOverdetermined.ConsistentInitialization.Fluid.TwoVolumesFullInitial -abortSlowSimulation -alarm=480 -lv LOG_STATS > ModelicaTestOverdetermined_ModelicaTestOverdetermined.ConsistentInitialization.Fluid.TwoVolumesFullInitial.pipe 2>&1)