Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ModelicaTest_3.2.1_ModelicaTest.Fluid.TestComponents.Pipes.IdealMixing1.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) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 3.2.1+maint.om/package.mo", uses=false) Using package ModelicaTest with version 3.2.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 3.2.1+maint.om/package.mo) 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(ModelicaTest.Fluid.TestComponents.Pipes.IdealMixing1,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="ModelicaTest_3.2.1_ModelicaTest.Fluid.TestComponents.Pipes.IdealMixing1") translateModel(ModelicaTest.Fluid.TestComponents.Pipes.IdealMixing1,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="ModelicaTest_3.2.1_ModelicaTest.Fluid.TestComponents.Pipes.IdealMixing1") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.00668/0.00668, allocations: 100.5 kB / 15.73 MB, free: 6.035 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001449/0.001449, allocations: 191.1 kB / 16.67 MB, free: 5.973 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.589/1.589, allocations: 205.1 MB / 222.5 MB, free: 4.488 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 3.2.1+maint.om/package.mo): time 0.4232/0.4232, allocations: 37.99 MB / 307.9 MB, free: 10.22 MB / 254.1 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: ModelicaTest requested package Modelica of version 3.2.1. Modelica 3.2.3 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.001588/0.001588, allocations: 71.84 kB / 433 MB, free: 5.418 MB / 366.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3754/0.377, allocations: 56.47 MB / 489.5 MB, free: 19.89 MB / 382.1 MB Notification: Performance of NFInst.instantiate(ModelicaTest.Fluid.TestComponents.Pipes.IdealMixing1): time 0.6647/1.042, allocations: 207.4 MB / 0.6805 GB, free: 1.309 MB / 0.4981 GB Notification: Performance of NFInst.instExpressions: time 0.02007/1.062, allocations: 15.03 MB / 0.6952 GB, free: 1.074 MB / 0.4981 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001899/1.064, allocations: 37.69 kB / 0.6952 GB, free: 1.074 MB / 0.4981 GB Notification: Performance of NFTyping.typeComponents: time 0.00155/1.065, allocations: 0.5588 MB / 0.6958 GB, free: 1.062 MB / 0.4981 GB Notification: Performance of NFTyping.typeBindings: time 0.01097/1.076, allocations: 3.814 MB / 0.6995 GB, free: 0.8945 MB / 0.4981 GB Notification: Performance of NFTyping.typeClassSections: time 0.01192/1.088, allocations: 4.007 MB / 0.7034 GB, free: 0.7461 MB / 0.4981 GB Notification: Performance of NFFlatten.flatten: time 0.005416/1.094, allocations: 3.275 MB / 0.7066 GB, free: 0.7031 MB / 0.4981 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002565/1.096, allocations: 1.664 MB / 0.7082 GB, free: 396 kB / 0.4981 GB Notification: Performance of NFEvalConstants.evaluate: time 0.004324/1.101, allocations: 1.913 MB / 0.7101 GB, free: 0 / 0.4981 GB Notification: Performance of NFSimplifyModel.simplify: time 0.007693/1.108, allocations: 3.58 MB / 0.7136 GB, free: 14.69 MB / 0.5137 GB Notification: Performance of NFPackage.collectConstants: time 0.0007323/1.109, allocations: 186.1 kB / 0.7138 GB, free: 14.69 MB / 0.5137 GB Notification: Performance of NFFlatten.collectFunctions: time 0.01561/1.125, allocations: 5.716 MB / 0.7194 GB, free: 12.25 MB / 0.5137 GB Notification: Performance of NFScalarize.scalarize: time 0.001706/1.127, allocations: 0.9422 MB / 0.7203 GB, free: 11.65 MB / 0.5137 GB Notification: Performance of NFVerifyModel.verify: time 0.001884/1.128, allocations: 1.08 MB / 0.7213 GB, free: 10.99 MB / 0.5137 GB Notification: Performance of NFConvertDAE.convert: time 0.01767/1.146, allocations: 6.197 MB / 0.7274 GB, free: 5.953 MB / 0.5137 GB Notification: Performance of FrontEnd - DAE generated: time 6.723e-06/1.146, allocations: 0 / 0.7274 GB, free: 5.953 MB / 0.5137 GB Notification: Performance of FrontEnd: time 2.003e-06/1.146, allocations: 0 / 0.7274 GB, free: 5.953 MB / 0.5137 GB Notification: Performance of Transformations before backend: time 5.416e-05/1.146, allocations: 0 / 0.7274 GB, free: 5.953 MB / 0.5137 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 334 * Number of variables: 334 Notification: Performance of Generate backend data structure: time 0.0107/1.157, allocations: 2.712 MB / 0.73 GB, free: 3.223 MB / 0.5137 GB Notification: Performance of prepare preOptimizeDAE: time 5.246e-05/1.157, allocations: 11.89 kB / 0.7301 GB, free: 3.211 MB / 0.5137 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.003732/1.161, allocations: 469.5 kB / 0.7305 GB, free: 2.75 MB / 0.5137 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002302/1.163, allocations: 1.157 MB / 0.7316 GB, free: 1.602 MB / 0.5137 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 8.773e-05/1.163, allocations: 88.58 kB / 0.7317 GB, free: 1.52 MB / 0.5137 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002533/1.163, allocations: 108.2 kB / 0.7318 GB, free: 1.418 MB / 0.5137 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.004918/1.168, allocations: 2.863 MB / 0.7346 GB, free: 14.52 MB / 0.5294 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.649e-05/1.168, allocations: 0 / 0.7346 GB, free: 14.52 MB / 0.5294 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0002231/1.169, allocations: 54.33 kB / 0.7347 GB, free: 14.47 MB / 0.5294 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0002105/1.169, allocations: 142.5 kB / 0.7348 GB, free: 14.33 MB / 0.5294 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.005976/1.175, allocations: 3.523 MB / 0.7382 GB, free: 10.81 MB / 0.5294 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 preOpt removeSimpleEquations (simulation): time 0.0164/1.191, allocations: 8.562 MB / 0.7466 GB, free: 2.055 MB / 0.5294 GB Notification: Performance of preOpt comSubExp (simulation): time 0.003393/1.195, allocations: 1.562 MB / 0.7481 GB, free: 0.4922 MB / 0.5294 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001222/1.196, allocations: 0.8158 MB / 0.7489 GB, free: 15.67 MB / 0.545 GB Notification: Performance of preOpt evalFunc (simulation): time 0.00153/1.197, allocations: 1.141 MB / 0.75 GB, free: 14.36 MB / 0.545 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.86e-05/1.198, allocations: 47.22 kB / 0.7501 GB, free: 14.3 MB / 0.545 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.001795/1.199, allocations: 464.9 kB / 0.7505 GB, free: 13.86 MB / 0.545 GB Notification: Performance of pre-optimization done (n=74): time 4.268e-06/1.199, allocations: 0 / 0.7505 GB, free: 13.86 MB / 0.545 GB Notification: Performance of matching and sorting (n=74): time 0.01402/1.213, allocations: 4.286 MB / 0.7547 GB, free: 9.539 MB / 0.545 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001118/1.214, allocations: 141.2 kB / 0.7549 GB, free: 9.371 MB / 0.545 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002904/1.216, allocations: 1.68 MB / 0.7565 GB, free: 7.68 MB / 0.545 GB Notification: Performance of collectPreVariables (initialization): time 0.0002339/1.217, allocations: 41.7 kB / 0.7565 GB, free: 7.633 MB / 0.545 GB Notification: Performance of collectInitialEqns (initialization): time 0.000626/1.217, allocations: 0.654 MB / 0.7572 GB, free: 6.98 MB / 0.545 GB Notification: Performance of collectInitialBindings (initialization): time 0.0003298/1.218, allocations: 264.3 kB / 0.7574 GB, free: 6.723 MB / 0.545 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0005639/1.218, allocations: 266.3 kB / 0.7577 GB, free: 6.457 MB / 0.545 GB Notification: Performance of setup shared object (initialization): time 0.0001915/1.218, allocations: 345.9 kB / 0.758 GB, free: 6.113 MB / 0.545 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001453/1.22, allocations: 0.9065 MB / 0.7589 GB, free: 5.203 MB / 0.545 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001623/1.222, allocations: 1.107 MB / 0.76 GB, free: 4.023 MB / 0.545 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.002914/1.224, allocations: 1.951 MB / 0.7619 GB, free: 2.027 MB / 0.545 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.85e-06/1.224, allocations: 0 / 0.7619 GB, free: 2.027 MB / 0.545 GB Notification: Performance of matching and sorting (n=124) (initialization): time 0.004647/1.229, allocations: 2.745 MB / 0.7646 GB, free: 15.3 MB / 0.5606 GB Notification: Performance of prepare postOptimizeDAE: time 2.415e-05/1.229, allocations: 8 kB / 0.7646 GB, free: 15.3 MB / 0.5606 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0001022/1.229, allocations: 4 kB / 0.7646 GB, free: 15.29 MB / 0.5606 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01859/1.248, allocations: 3.44 MB / 0.7679 GB, free: 11.85 MB / 0.5606 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001311/1.249, allocations: 198.1 kB / 0.7681 GB, free: 11.67 MB / 0.5606 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003451/1.253, allocations: 2.26 MB / 0.7703 GB, free: 9.387 MB / 0.5606 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002056/1.255, allocations: 55.98 kB / 0.7704 GB, free: 9.332 MB / 0.5606 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003414/1.255, allocations: 87.92 kB / 0.7705 GB, free: 9.246 MB / 0.5606 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.002393/1.258, allocations: 1.224 MB / 0.7717 GB, free: 8.016 MB / 0.5606 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.001602/1.259, allocations: 1.074 MB / 0.7727 GB, free: 6.859 MB / 0.5606 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.002935/1.262, allocations: 1.897 MB / 0.7746 GB, free: 4.906 MB / 0.5606 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 5.41e-06/1.262, allocations: 4 kB / 0.7746 GB, free: 4.902 MB / 0.5606 GB Notification: Performance of matching and sorting (n=124) (initialization_lambda0): time 0.004613/1.267, allocations: 2.367 MB / 0.7769 GB, free: 2.562 MB / 0.5606 GB Notification: Performance of prepare postOptimizeDAE: time 2.493e-05/1.267, allocations: 11.94 kB / 0.7769 GB, free: 2.551 MB / 0.5606 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.091e-05/1.267, allocations: 4.219 kB / 0.7769 GB, free: 2.547 MB / 0.5606 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0006641/1.267, allocations: 171.2 kB / 0.7771 GB, free: 2.379 MB / 0.5606 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001347/1.269, allocations: 272.5 kB / 0.7773 GB, free: 2.125 MB / 0.5606 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003018/1.272, allocations: 2.342 MB / 0.7796 GB, free: 15.66 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001707/1.274, allocations: 68 kB / 0.7797 GB, free: 15.59 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001993/1.274, allocations: 83.92 kB / 0.7797 GB, free: 15.51 MB / 0.5762 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 21 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (88): * Single equations (assignments): 87 * 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 {(3,34)} Notification: Performance of prepare postOptimizeDAE: time 0.000553/1.274, allocations: 234.4 kB / 0.78 GB, free: 15.29 MB / 0.5762 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0003952/1.275, allocations: 154.2 kB / 0.7801 GB, free: 15.13 MB / 0.5762 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.004668/1.279, allocations: 2.383 MB / 0.7824 GB, free: 12.73 MB / 0.5762 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.395e-06/1.279, allocations: 8 kB / 0.7824 GB, free: 12.72 MB / 0.5762 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.416e-06/1.279, allocations: 0 / 0.7824 GB, free: 12.72 MB / 0.5762 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 9.639e-06/1.28, allocations: 3.984 kB / 0.7825 GB, free: 12.71 MB / 0.5762 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.005358/1.285, allocations: 3.387 MB / 0.7858 GB, free: 9.281 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.438e-06/1.285, allocations: 0 / 0.7858 GB, free: 9.281 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0005585/1.285, allocations: 78.47 kB / 0.7858 GB, free: 9.207 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.007384/1.293, allocations: 1.709 MB / 0.7875 GB, free: 7.5 MB / 0.5762 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001513/1.293, allocations: 23.98 kB / 0.7875 GB, free: 7.477 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.002533/1.296, allocations: 1.968 MB / 0.7894 GB, free: 5.484 MB / 0.5762 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.236e-06/1.296, allocations: 0 / 0.7894 GB, free: 5.484 MB / 0.5762 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003374/1.299, allocations: 1.976 MB / 0.7914 GB, free: 3.484 MB / 0.5762 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0004914/1.299, allocations: 247.2 kB / 0.7916 GB, free: 3.223 MB / 0.5762 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002016/1.3, allocations: 12 kB / 0.7916 GB, free: 3.211 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001161/1.301, allocations: 59.94 kB / 0.7917 GB, free: 3.152 MB / 0.5762 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001694/1.301, allocations: 51.2 kB / 0.7917 GB, free: 3.105 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001448/1.301, allocations: 59.95 kB / 0.7918 GB, free: 3.047 MB / 0.5762 GB Notification: Performance of sorting global known variables: time 0.00165/1.303, allocations: 1.192 MB / 0.793 GB, free: 1.855 MB / 0.5762 GB Notification: Performance of sort global known variables: time 1.21e-07/1.303, allocations: 0 / 0.793 GB, free: 1.855 MB / 0.5762 GB Notification: Performance of remove unused functions: time 0.00444/1.307, allocations: 1.666 MB / 0.7946 GB, free: 192 kB / 0.5762 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 2 * Number of states: 0 () * 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 (37): * Single equations (assignments): 36 * 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 {(3,37)} Notification: Performance of Backend phase and start with SimCode phase: time 0.005051/1.312, allocations: 1.738 MB / 0.7963 GB, free: 14.54 MB / 0.5919 GB Notification: Performance of simCode: created initialization part: time 0.00573/1.318, allocations: 3.122 MB / 0.7993 GB, free: 11.44 MB / 0.5919 GB Notification: Performance of simCode: created event and clocks part: time 1.146e-05/1.318, allocations: 6.031 kB / 0.7993 GB, free: 11.44 MB / 0.5919 GB Notification: Performance of simCode: created simulation system equations: time 0.001393/1.32, allocations: 0.7612 MB / 0.8001 GB, free: 10.68 MB / 0.5919 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.00438/1.324, allocations: 0.9861 MB / 0.801 GB, free: 9.699 MB / 0.5919 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.004326/1.328, allocations: 2.58 MB / 0.8036 GB, free: 7.098 MB / 0.5919 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001149/1.329, allocations: 1.29 MB / 0.8048 GB, free: 5.781 MB / 0.5919 GB Notification: Performance of simCode: alias equations: time 0.002129/1.332, allocations: 0.5863 MB / 0.8054 GB, free: 5.188 MB / 0.5919 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0003954/1.332, allocations: 115.4 kB / 0.8055 GB, free: 5.074 MB / 0.5919 GB Notification: Performance of SimCode: time 1.012e-06/1.332, allocations: 4 kB / 0.8055 GB, free: 5.07 MB / 0.5919 GB Notification: Performance of Templates: time 0.1062/1.438, allocations: 68.8 MB / 0.8727 GB, free: 332 kB / 0.6544 GB make -j1 -f ModelicaTest_3.2.1_ModelicaTest.Fluid.TestComponents.Pipes.IdealMixing1.makefile (rm -f ModelicaTest_3.2.1_ModelicaTest.Fluid.TestComponents.Pipes.IdealMixing1.pipe ; mkfifo ModelicaTest_3.2.1_ModelicaTest.Fluid.TestComponents.Pipes.IdealMixing1.pipe ; head -c 1048576 < ModelicaTest_3.2.1_ModelicaTest.Fluid.TestComponents.Pipes.IdealMixing1.pipe >> ../files/ModelicaTest_3.2.1_ModelicaTest.Fluid.TestComponents.Pipes.IdealMixing1.sim & ./ModelicaTest_3.2.1_ModelicaTest.Fluid.TestComponents.Pipes.IdealMixing1 -abortSlowSimulation -alarm=480 -lv LOG_STATS > ModelicaTest_3.2.1_ModelicaTest.Fluid.TestComponents.Pipes.IdealMixing1.pipe 2>&1)