Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Modelica_3.2.1_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1.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) 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(Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Modelica_3.2.1_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1") translateModel(Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Modelica_3.2.1_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.008765/0.008765, allocations: 102 kB / 15.73 MB, free: 6.039 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001637/0.001637, allocations: 194 kB / 16.67 MB, free: 5.961 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.508/1.508, allocations: 205.1 MB / 222.5 MB, free: 12.22 MB / 190.1 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 0.002251/0.002251, allocations: 55.92 kB / 326.6 MB, free: 3.281 MB / 270.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.0947/0.09697, allocations: 46.61 MB / 373.2 MB, free: 4.559 MB / 318.1 MB Notification: Performance of NFInst.instantiate(Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1): time 0.2219/0.3189, allocations: 30.98 MB / 404.2 MB, free: 9.32 MB / 334.1 MB Notification: Performance of NFInst.instExpressions: time 0.01949/0.3384, allocations: 14.27 MB / 418.4 MB, free: 14.61 MB / 350.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.002495/0.341, allocations: 45.53 kB / 418.5 MB, free: 14.59 MB / 350.1 MB Notification: Performance of NFTyping.typeComponents: time 0.001898/0.3429, allocations: 0.5762 MB / 419 MB, free: 14.09 MB / 350.1 MB Notification: Performance of NFTyping.typeBindings: time 0.005984/0.3489, allocations: 2.172 MB / 421.2 MB, free: 12.43 MB / 350.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.00993/0.3589, allocations: 3.673 MB / 424.9 MB, free: 9.941 MB / 350.1 MB Notification: Performance of NFFlatten.flatten: time 0.005442/0.3643, allocations: 3.961 MB / 428.8 MB, free: 7.707 MB / 350.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.001528/0.3659, allocations: 1.016 MB / 429.9 MB, free: 6.824 MB / 350.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.002533/0.3684, allocations: 1.499 MB / 431.4 MB, free: 5.32 MB / 350.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.002084/0.3705, allocations: 1.518 MB / 432.9 MB, free: 3.797 MB / 350.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0002586/0.3708, allocations: 144 kB / 433 MB, free: 3.656 MB / 350.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.004402/0.3752, allocations: 2.32 MB / 435.3 MB, free: 1.332 MB / 350.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0005705/0.3758, allocations: 0.5454 MB / 435.9 MB, free: 0.7852 MB / 350.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0009517/0.3768, allocations: 0.8245 MB / 436.7 MB, free: 15.95 MB / 366.1 MB Notification: Performance of NFConvertDAE.convert: time 0.005761/0.3825, allocations: 3.604 MB / 440.3 MB, free: 12.34 MB / 366.1 MB Notification: Performance of FrontEnd - DAE generated: time 4.659e-06/0.3826, allocations: 0 / 440.3 MB, free: 12.34 MB / 366.1 MB Notification: Performance of FrontEnd: time 1.643e-06/0.3826, allocations: 0 / 440.3 MB, free: 12.34 MB / 366.1 MB Notification: Performance of Transformations before backend: time 2.873e-05/0.3826, allocations: 0 / 440.3 MB, free: 12.34 MB / 366.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 256 * Number of variables: 256 Notification: Performance of Generate backend data structure: time 0.004456/0.3871, allocations: 2.107 MB / 442.4 MB, free: 10.18 MB / 366.1 MB Notification: Performance of prepare preOptimizeDAE: time 4.059e-05/0.3871, allocations: 8.031 kB / 442.4 MB, free: 10.17 MB / 366.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0006268/0.3878, allocations: 166.2 kB / 442.6 MB, free: 10.01 MB / 366.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001894/0.3897, allocations: 1.014 MB / 443.6 MB, free: 8.949 MB / 366.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 7.874e-05/0.3898, allocations: 85.91 kB / 443.7 MB, free: 8.867 MB / 366.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001698/0.3899, allocations: 99.97 kB / 443.8 MB, free: 8.77 MB / 366.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002528/0.3925, allocations: 1.625 MB / 445.4 MB, free: 7.062 MB / 366.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 2.488e-05/0.3925, allocations: 4 kB / 445.4 MB, free: 7.059 MB / 366.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.000121/0.3926, allocations: 47.97 kB / 445.5 MB, free: 7.012 MB / 366.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001355/0.3928, allocations: 101.9 kB / 445.6 MB, free: 6.91 MB / 366.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002628/0.3954, allocations: 1.643 MB / 447.2 MB, free: 5.27 MB / 366.1 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 0.00996/0.4054, allocations: 6.644 MB / 453.9 MB, free: 14.23 MB / 382.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.001475/0.4069, allocations: 0.9342 MB / 454.8 MB, free: 13.28 MB / 382.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0008368/0.4077, allocations: 0.5504 MB / 455.3 MB, free: 12.72 MB / 382.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.004279/0.412, allocations: 2.813 MB / 458.1 MB, free: 9.66 MB / 382.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.56e-05/0.4121, allocations: 43.22 kB / 458.2 MB, free: 9.609 MB / 382.1 MB Notification: Performance of pre-optimization done (n=80): time 2.294e-06/0.4121, allocations: 0 / 458.2 MB, free: 9.609 MB / 382.1 MB Notification: Performance of matching and sorting (n=90): time 0.008584/0.4207, allocations: 3.703 MB / 461.9 MB, free: 5.789 MB / 382.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 9.743e-05/0.4208, allocations: 192.9 kB / 462.1 MB, free: 5.559 MB / 382.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.00168/0.4225, allocations: 1.314 MB / 463.4 MB, free: 4.227 MB / 382.1 MB Notification: Performance of collectPreVariables (initialization): time 0.0001194/0.4226, allocations: 53.64 kB / 463.4 MB, free: 4.168 MB / 382.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0005151/0.4232, allocations: 0.6472 MB / 464.1 MB, free: 3.512 MB / 382.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.000256/0.4234, allocations: 315.5 kB / 464.4 MB, free: 3.199 MB / 382.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004356/0.4239, allocations: 291.3 kB / 464.7 MB, free: 2.91 MB / 382.1 MB Notification: Performance of setup shared object (initialization): time 0.0001062/0.424, allocations: 305.1 kB / 465 MB, free: 2.609 MB / 382.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001003/0.425, allocations: 0.5864 MB / 465.6 MB, free: 2.02 MB / 382.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001303/0.4263, allocations: 1.001 MB / 466.6 MB, free: 0.8438 MB / 382.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.002107/0.4284, allocations: 1.481 MB / 468.1 MB, free: 15.2 MB / 398.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 8.756e-06/0.4284, allocations: 1 kB / 468.1 MB, free: 15.2 MB / 398.1 MB Notification: Performance of matching and sorting (n=180) (initialization): time 0.003288/0.4317, allocations: 1.908 MB / 470 MB, free: 13.27 MB / 398.1 MB Notification: Performance of prepare postOptimizeDAE: time 3.009e-05/0.4318, allocations: 12 kB / 470 MB, free: 13.26 MB / 398.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.083e-05/0.4318, allocations: 12 kB / 470 MB, free: 13.25 MB / 398.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.004754/0.4366, allocations: 0.7597 MB / 470.7 MB, free: 12.48 MB / 398.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001113/0.4377, allocations: 283.5 kB / 471 MB, free: 12.2 MB / 398.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002053/0.4398, allocations: 2.168 MB / 473.2 MB, free: 9.961 MB / 398.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001191/0.441, allocations: 71.89 kB / 473.3 MB, free: 9.891 MB / 398.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001321/0.4411, allocations: 71.97 kB / 473.3 MB, free: 9.82 MB / 398.1 MB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001358/0.4425, allocations: 0.8434 MB / 474.2 MB, free: 8.973 MB / 398.1 MB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.001208/0.4437, allocations: 0.9953 MB / 475.2 MB, free: 7.789 MB / 398.1 MB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001925/0.4456, allocations: 1.46 MB / 476.6 MB, free: 6.156 MB / 398.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 7.273e-06/0.4457, allocations: 4 kB / 476.6 MB, free: 6.152 MB / 398.1 MB Notification: Performance of matching and sorting (n=180) (initialization_lambda0): time 0.003141/0.4488, allocations: 1.826 MB / 478.5 MB, free: 4.309 MB / 398.1 MB Notification: Performance of prepare postOptimizeDAE: time 2.031e-05/0.4488, allocations: 12.69 kB / 478.5 MB, free: 4.297 MB / 398.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.434e-05/0.4489, allocations: 16 kB / 478.5 MB, free: 4.281 MB / 398.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.004002/0.4529, allocations: 0.5837 MB / 479.1 MB, free: 3.688 MB / 398.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001096/0.454, allocations: 295.5 kB / 479.4 MB, free: 3.398 MB / 398.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.00167/0.4557, allocations: 2.026 MB / 481.4 MB, free: 1.297 MB / 398.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001145/0.4568, allocations: 68.05 kB / 481.5 MB, free: 1.23 MB / 398.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001227/0.457, allocations: 71.92 kB / 481.5 MB, free: 1.16 MB / 398.1 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 53 * Number of states: 0 () * Number of discrete variables: 12 (tank2.aboveLevel[2],$PRE.tank2.aboveLevel[2],tank2.aboveLevel[1],$PRE.tank2.aboveLevel[1],tank1.aboveLevel[2],$PRE.tank1.aboveLevel[2],tank1.aboveLevel[1],$PRE.tank1.aboveLevel[1],tank2.ports_m_flow_out[2],tank2.ports_m_flow_out[1],tank1.ports_m_flow_out[2],tank1.ports_m_flow_out[1]) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (166): * Single equations (assignments): 163 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * 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): 3 systems {(1,3), (2,7), (1,3)} Notification: Performance of prepare postOptimizeDAE: time 0.0003933/0.4574, allocations: 279.7 kB / 481.8 MB, free: 0.8789 MB / 398.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002749/0.4576, allocations: 146.6 kB / 481.9 MB, free: 0.7344 MB / 398.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.003038/0.4607, allocations: 1.522 MB / 483.5 MB, free: 15.21 MB / 414.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.156e-05/0.4607, allocations: 12 kB / 483.5 MB, free: 15.2 MB / 414.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 8.276e-06/0.4607, allocations: 3.938 kB / 483.5 MB, free: 15.19 MB / 414.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.337e-05/0.4608, allocations: 7.969 kB / 483.5 MB, free: 15.18 MB / 414.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.004639/0.4654, allocations: 2.797 MB / 486.3 MB, free: 12.3 MB / 414.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 9.838e-06/0.4654, allocations: 4 kB / 486.3 MB, free: 12.29 MB / 414.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0006834/0.4661, allocations: 159.9 kB / 486.4 MB, free: 12.14 MB / 414.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.002713/0.4688, allocations: 0.58 MB / 487 MB, free: 11.55 MB / 414.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 8.268e-05/0.4689, allocations: 27.98 kB / 487.1 MB, free: 11.52 MB / 414.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001784/0.4707, allocations: 2.114 MB / 489.2 MB, free: 9.328 MB / 414.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.498e-06/0.4708, allocations: 4.031 kB / 489.2 MB, free: 9.324 MB / 414.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003261/0.474, allocations: 2.092 MB / 491.3 MB, free: 7.191 MB / 414.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0003806/0.4744, allocations: 223.3 kB / 491.5 MB, free: 6.953 MB / 414.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001969/0.4746, allocations: 31.88 kB / 491.5 MB, free: 6.922 MB / 414.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0007674/0.4754, allocations: 44.83 kB / 491.6 MB, free: 6.879 MB / 414.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001959/0.4756, allocations: 96.81 kB / 491.6 MB, free: 6.785 MB / 414.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 9.103e-05/0.4757, allocations: 47.97 kB / 491.7 MB, free: 6.738 MB / 414.1 MB Notification: Performance of sorting global known variables: time 0.001182/0.4769, allocations: 0.9006 MB / 492.6 MB, free: 5.836 MB / 414.1 MB Notification: Performance of sort global known variables: time 1.2e-07/0.4769, allocations: 0 / 492.6 MB, free: 5.836 MB / 414.1 MB Notification: Performance of remove unused functions: time 0.002997/0.4799, allocations: 1.113 MB / 493.7 MB, free: 4.723 MB / 414.1 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * Number of states: 4 (tank1.level,tank1.medium.T,tank2.level,tank2.medium.T) * Number of discrete variables: 4 (tank1.aboveLevel[1],tank1.aboveLevel[2],tank2.aboveLevel[1],tank2.aboveLevel[2]) * Number of discrete states: 4 (tank1.aboveLevel[1],tank1.aboveLevel[2],tank2.aboveLevel[1],tank2.aboveLevel[2]) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (84): * Single equations (assignments): 81 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 3 * 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): 3 systems {(2,12), (1,6), (1,6)} Notification: Performance of Backend phase and start with SimCode phase: time 0.001887/0.4818, allocations: 0.8412 MB / 494.5 MB, free: 3.879 MB / 414.1 MB Notification: Performance of simCode: created initialization part: time 0.004378/0.4862, allocations: 2.28 MB / 496.8 MB, free: 1.605 MB / 414.1 MB Notification: Performance of simCode: created event and clocks part: time 7.253e-06/0.4862, allocations: 4 kB / 496.8 MB, free: 1.602 MB / 414.1 MB Notification: Performance of simCode: created simulation system equations: time 0.00127/0.4875, allocations: 0.6848 MB / 497.5 MB, free: 0.9141 MB / 414.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002842/0.4903, allocations: 0.6409 MB / 498.2 MB, free: 280 kB / 414.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.004178/0.4945, allocations: 2.701 MB / 0.4891 GB, free: 13.53 MB / 430.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0009277/0.4955, allocations: 1.26 MB / 0.4903 GB, free: 12.24 MB / 430.1 MB Notification: Performance of simCode: alias equations: time 0.001795/0.4973, allocations: 0.5784 MB / 0.4909 GB, free: 11.66 MB / 430.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0003258/0.4976, allocations: 115.4 kB / 0.491 GB, free: 11.54 MB / 430.1 MB Notification: Performance of SimCode: time 6.42e-07/0.4976, allocations: 0 / 0.491 GB, free: 11.54 MB / 430.1 MB Notification: Performance of Templates: time 0.06113/0.5588, allocations: 40.95 MB / 0.531 GB, free: 2.52 MB / 462.1 MB make -j1 -f Modelica_3.2.1_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1.makefile (rm -f Modelica_3.2.1_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1.pipe ; mkfifo Modelica_3.2.1_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1.pipe ; head -c 1048576 < Modelica_3.2.1_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1.pipe >> ../files/Modelica_3.2.1_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1.sim & ./Modelica_3.2.1_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1 -abortSlowSimulation -alarm=480 -lv LOG_STATS > Modelica_3.2.1_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1.pipe 2>&1)