Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Modelica_3.2.2_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_3.2.2_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_3.2.2_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 0.001545/0.001545, allocations: 111.8 kB / 16.62 MB, free: 6.812 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001907/0.001907, allocations: 185.8 kB / 17.55 MB, free: 5.934 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.358/1.358, allocations: 205.1 MB / 223.4 MB, free: 12.44 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 0.001183/0.001183, allocations: 48.2 kB / 279.5 MB, free: 3.484 MB / 222.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.08116/0.08236, allocations: 46.62 MB / 326.1 MB, free: 4.785 MB / 270.1 MB Notification: Performance of NFInst.instantiate(Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1): time 0.0311/0.1135, allocations: 32.22 MB / 358.4 MB, free: 4.438 MB / 302.1 MB Notification: Performance of NFInst.instExpressions: time 0.01899/0.1325, allocations: 14.52 MB / 372.9 MB, free: 5.879 MB / 318.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.002293/0.1349, allocations: 59.56 kB / 372.9 MB, free: 5.82 MB / 318.1 MB Notification: Performance of NFTyping.typeComponents: time 0.001939/0.1369, allocations: 0.5129 MB / 373.4 MB, free: 5.305 MB / 318.1 MB Notification: Performance of NFTyping.typeBindings: time 0.005596/0.1425, allocations: 2.015 MB / 375.5 MB, free: 3.281 MB / 318.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.1629/0.3054, allocations: 3.374 MB / 378.8 MB, free: 12.36 MB / 318.1 MB Notification: Performance of NFFlatten.flatten: time 0.004977/0.3105, allocations: 3.975 MB / 382.8 MB, free: 12.36 MB / 318.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.00174/0.3122, allocations: 0.9978 MB / 383.8 MB, free: 12.3 MB / 318.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.003694/0.3159, allocations: 1.496 MB / 385.3 MB, free: 12.3 MB / 318.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.002894/0.3189, allocations: 1.588 MB / 386.9 MB, free: 12.2 MB / 318.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0004338/0.3193, allocations: 144.8 kB / 387 MB, free: 12.2 MB / 318.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.004626/0.3239, allocations: 2.303 MB / 389.3 MB, free: 12.2 MB / 318.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0008739/0.3248, allocations: 0.5554 MB / 389.9 MB, free: 12.14 MB / 318.1 MB Notification: Performance of NFVerifyModel.verify: time 0.001344/0.3262, allocations: 0.8231 MB / 390.7 MB, free: 11.93 MB / 318.1 MB Notification: Performance of NFConvertDAE.convert: time 0.004795/0.331, allocations: 3.589 MB / 394.3 MB, free: 11.64 MB / 318.1 MB Notification: Performance of FrontEnd - DAE generated: time 4.198e-06/0.331, allocations: 0 / 394.3 MB, free: 11.64 MB / 318.1 MB Notification: Performance of FrontEnd: time 1.753e-06/0.331, allocations: 0 / 394.3 MB, free: 11.64 MB / 318.1 MB Notification: Performance of Transformations before backend: time 2.506e-05/0.3311, allocations: 0 / 394.3 MB, free: 11.64 MB / 318.1 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 0.003911/0.335, allocations: 2.106 MB / 396.4 MB, free: 10.57 MB / 318.1 MB Notification: Performance of prepare preOptimizeDAE: time 3.403e-05/0.335, allocations: 8.375 kB / 396.4 MB, free: 10.57 MB / 318.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0005379/0.3356, allocations: 170.3 kB / 396.6 MB, free: 10.5 MB / 318.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001265/0.3368, allocations: 0.9506 MB / 397.5 MB, free: 10.15 MB / 318.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 5.451e-05/0.3369, allocations: 79.12 kB / 397.6 MB, free: 10.15 MB / 318.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001458/0.3371, allocations: 99.28 kB / 397.7 MB, free: 10.14 MB / 318.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002225/0.3393, allocations: 1.641 MB / 399.4 MB, free: 9.902 MB / 318.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 2.687e-05/0.3393, allocations: 7.219 kB / 399.4 MB, free: 9.898 MB / 318.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001277/0.3395, allocations: 40.31 kB / 399.4 MB, free: 9.898 MB / 318.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001145/0.3396, allocations: 101.8 kB / 399.5 MB, free: 9.898 MB / 318.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002177/0.3418, allocations: 1.648 MB / 401.1 MB, free: 9.891 MB / 318.1 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 0.008224/0.35, allocations: 6.642 MB / 407.8 MB, free: 5.895 MB / 318.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.001231/0.3513, allocations: 0.9289 MB / 408.7 MB, free: 5.738 MB / 318.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0006688/0.3519, allocations: 0.5597 MB / 409.3 MB, free: 5.652 MB / 318.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.003227/0.3552, allocations: 2.813 MB / 412.1 MB, free: 3.441 MB / 318.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.392e-05/0.3552, allocations: 49.03 kB / 412.1 MB, free: 3.391 MB / 318.1 MB Notification: Performance of pre-optimization done (n=80): time 2.504e-06/0.3552, allocations: 0 / 412.1 MB, free: 3.391 MB / 318.1 MB Notification: Performance of matching and sorting (n=90): time 0.007725/0.363, allocations: 3.709 MB / 415.8 MB, free: 0.8438 MB / 318.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 5.267e-05/0.363, allocations: 188.9 kB / 416 MB, free: 0.6172 MB / 318.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001517/0.3646, allocations: 1.306 MB / 417.3 MB, free: 15.3 MB / 334.1 MB Notification: Performance of collectPreVariables (initialization): time 0.0001188/0.3647, allocations: 49.7 kB / 417.4 MB, free: 15.24 MB / 334.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.000497/0.3652, allocations: 0.6514 MB / 418 MB, free: 14.59 MB / 334.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0002739/0.3655, allocations: 321.5 kB / 418.3 MB, free: 14.28 MB / 334.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004545/0.366, allocations: 283.3 kB / 418.6 MB, free: 14 MB / 334.1 MB Notification: Performance of setup shared object (initialization): time 8.79e-05/0.3661, allocations: 301.1 kB / 418.9 MB, free: 13.7 MB / 334.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0009318/0.367, allocations: 0.5972 MB / 419.5 MB, free: 13.1 MB / 334.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001194/0.3682, allocations: 0.9958 MB / 420.5 MB, free: 11.93 MB / 334.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.001988/0.3702, allocations: 1.487 MB / 422 MB, free: 10.34 MB / 334.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.502e-06/0.3702, allocations: 4 kB / 422 MB, free: 10.34 MB / 334.1 MB Notification: Performance of matching and sorting (n=180) (initialization): time 0.003086/0.3733, allocations: 1.9 MB / 423.9 MB, free: 8.504 MB / 334.1 MB Notification: Performance of prepare postOptimizeDAE: time 2.844e-05/0.3734, allocations: 16.03 kB / 423.9 MB, free: 8.488 MB / 334.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.9e-05/0.3734, allocations: 14.53 kB / 423.9 MB, free: 8.477 MB / 334.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.004806/0.3782, allocations: 0.7594 MB / 424.7 MB, free: 7.707 MB / 334.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001206/0.3794, allocations: 282.1 kB / 425 MB, free: 7.453 MB / 334.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002087/0.3815, allocations: 2.166 MB / 427.1 MB, free: 5.219 MB / 334.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001741/0.3833, allocations: 87.88 kB / 427.2 MB, free: 5.133 MB / 334.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001611/0.3835, allocations: 75.98 kB / 427.3 MB, free: 5.059 MB / 334.1 MB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001521/0.385, allocations: 0.8385 MB / 428.1 MB, free: 4.219 MB / 334.1 MB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.001193/0.3862, allocations: 0.9986 MB / 429.1 MB, free: 3.043 MB / 334.1 MB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001966/0.3882, allocations: 1.457 MB / 430.6 MB, free: 1.469 MB / 334.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 9.618e-06/0.3882, allocations: 7.938 kB / 430.6 MB, free: 1.461 MB / 334.1 MB Notification: Performance of matching and sorting (n=180) (initialization_lambda0): time 0.00332/0.3915, allocations: 1.831 MB / 432.4 MB, free: 15.68 MB / 350.1 MB Notification: Performance of prepare postOptimizeDAE: time 2.156e-05/0.3915, allocations: 12.56 kB / 432.4 MB, free: 15.67 MB / 350.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.759e-05/0.3916, allocations: 12 kB / 432.5 MB, free: 15.66 MB / 350.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.00404/0.3956, allocations: 0.5915 MB / 433 MB, free: 15.06 MB / 350.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001049/0.3967, allocations: 290.7 kB / 433.3 MB, free: 14.8 MB / 350.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001736/0.3984, allocations: 2.013 MB / 435.3 MB, free: 12.71 MB / 350.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001464/0.3999, allocations: 98.78 kB / 435.4 MB, free: 12.62 MB / 350.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001168/0.4, allocations: 64.08 kB / 435.5 MB, free: 12.56 MB / 350.1 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 0.0004545/0.4005, allocations: 284.3 kB / 435.8 MB, free: 12.29 MB / 350.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002723/0.4008, allocations: 143.8 kB / 435.9 MB, free: 12.15 MB / 350.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002931/0.4037, allocations: 1.526 MB / 437.4 MB, free: 10.62 MB / 350.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.266e-05/0.4037, allocations: 15.98 kB / 437.5 MB, free: 10.61 MB / 350.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.783e-06/0.4038, allocations: 192 / 437.5 MB, free: 10.61 MB / 350.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.264e-05/0.4038, allocations: 7.969 kB / 437.5 MB, free: 10.6 MB / 350.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.004333/0.4081, allocations: 2.802 MB / 440.3 MB, free: 7.746 MB / 350.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.272e-06/0.4081, allocations: 4 kB / 440.3 MB, free: 7.742 MB / 350.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0007013/0.4089, allocations: 154.9 kB / 440.4 MB, free: 7.598 MB / 350.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.002782/0.4116, allocations: 0.5847 MB / 441 MB, free: 7.008 MB / 350.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 8.465e-05/0.4117, allocations: 20 kB / 441 MB, free: 6.988 MB / 350.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001695/0.4134, allocations: 2.112 MB / 443.1 MB, free: 4.809 MB / 350.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.518e-06/0.4135, allocations: 4.75 kB / 443.1 MB, free: 4.805 MB / 350.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003197/0.4167, allocations: 2.101 MB / 445.2 MB, free: 2.672 MB / 350.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0004459/0.4171, allocations: 219.2 kB / 445.5 MB, free: 2.438 MB / 350.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.00024/0.4174, allocations: 32 kB / 445.5 MB, free: 2.406 MB / 350.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.000871/0.4183, allocations: 59.84 kB / 445.5 MB, free: 2.348 MB / 350.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001905/0.4185, allocations: 98.12 kB / 445.6 MB, free: 2.254 MB / 350.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 9.199e-05/0.4186, allocations: 47.97 kB / 445.7 MB, free: 2.207 MB / 350.1 MB Notification: Performance of sorting global known variables: time 0.001156/0.4197, allocations: 0.9006 MB / 446.6 MB, free: 1.305 MB / 350.1 MB Notification: Performance of sort global known variables: time 1.2e-07/0.4197, allocations: 0 / 446.6 MB, free: 1.305 MB / 350.1 MB Notification: Performance of remove unused functions: time 0.002898/0.4226, allocations: 1.113 MB / 447.7 MB, free: 196 kB / 350.1 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 0.002079/0.4247, allocations: 0.8309 MB / 448.5 MB, free: 15.41 MB / 366.1 MB Notification: Performance of simCode: created initialization part: time 0.005165/0.4299, allocations: 2.568 MB / 451.1 MB, free: 12.95 MB / 366.1 MB Notification: Performance of simCode: created event and clocks part: time 6.312e-06/0.4299, allocations: 5.25 kB / 451.1 MB, free: 12.94 MB / 366.1 MB Notification: Performance of simCode: created simulation system equations: time 0.001249/0.4312, allocations: 0.691 MB / 451.8 MB, free: 12.27 MB / 366.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002893/0.4341, allocations: 0.6312 MB / 452.4 MB, free: 11.64 MB / 366.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.00428/0.4384, allocations: 3.189 MB / 455.6 MB, free: 8.441 MB / 366.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0007638/0.4392, allocations: 1.26 MB / 456.9 MB, free: 7.152 MB / 366.1 MB Notification: Performance of simCode: alias equations: time 0.001834/0.441, allocations: 0.5706 MB / 457.4 MB, free: 6.574 MB / 366.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0003133/0.4413, allocations: 115.4 kB / 457.6 MB, free: 6.461 MB / 366.1 MB Notification: Performance of SimCode: time 8.42e-07/0.4413, allocations: 0 / 457.6 MB, free: 6.461 MB / 366.1 MB Notification: Performance of Templates: time 0.05923/0.5006, allocations: 39.58 MB / 497.1 MB, free: 15.01 MB / 414.1 MB make -j1 -f Modelica_3.2.2_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1.makefile (rm -f Modelica_3.2.2_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1.pipe ; mkfifo Modelica_3.2.2_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1.pipe ; head -c 1048576 < Modelica_3.2.2_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1.pipe >> ../files/Modelica_3.2.2_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1.sim & ./Modelica_3.2.2_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1 -abortSlowSimulation -alarm=480 -lv LOG_STATS > Modelica_3.2.2_Modelica.Fluid.Examples.AST_BatchPlant.Test.TanksWithEmptyingPipe1.pipe 2>&1)