Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr PowerSysPro_PowerSysPro.Examples.LargerNetwork.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 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/PowerSysPro 2.3.1-master/package.mo", uses=false) Using package PowerSysPro with version 2.3.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/PowerSysPro 2.3.1-master/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 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: "" <> buildModelFMU(PowerSysPro.Examples.LargerNetwork,fileNamePrefix="PowerSysPro_PowerSysPro_Examples_LargerNetwork",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(PowerSysPro.Examples.LargerNetwork,fileNamePrefix="PowerSysPro_PowerSysPro_Examples_LargerNetwork",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.002037/0.002037, allocations: 101.8 kB / 16.45 MB, free: 6.453 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.002287/0.002288, allocations: 192 kB / 17.38 MB, free: 5.691 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.383/1.383, allocations: 222.9 MB / 241.1 MB, free: 15.07 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/PowerSysPro 2.3.1-master/package.mo): time 0.05096/0.05096, allocations: 8.095 MB / 299.3 MB, free: 6.633 MB / 238.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001768/0.001768, allocations: 67.89 kB / 414.1 MB, free: 22.15 MB / 302.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.08968/0.09146, allocations: 51.51 MB / 465.6 MB, free: 2.594 MB / 334.1 MB Notification: Performance of NFInst.instantiate(PowerSysPro.Examples.LargerNetwork): time 0.01442/0.1059, allocations: 14.71 MB / 480.3 MB, free: 3.828 MB / 350.1 MB Notification: Performance of NFInst.instExpressions: time 0.007816/0.1138, allocations: 3.953 MB / 484.2 MB, free: 15.85 MB / 366.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.001911/0.1157, allocations: 48 kB / 484.3 MB, free: 15.8 MB / 366.1 MB Notification: Performance of NFTyping.typeComponents: time 0.00152/0.1173, allocations: 0.7019 MB / 485 MB, free: 15.09 MB / 366.1 MB Notification: Performance of NFTyping.typeBindings: time 0.004326/0.1216, allocations: 1.619 MB / 486.6 MB, free: 13.47 MB / 366.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.004452/0.1261, allocations: 2.163 MB / 488.8 MB, free: 11.33 MB / 366.1 MB Notification: Performance of NFFlatten.flatten: time 0.005321/0.1314, allocations: 3.634 MB / 492.4 MB, free: 7.676 MB / 366.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.001591/0.133, allocations: 1.177 MB / 493.6 MB, free: 6.445 MB / 366.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.002113/0.1351, allocations: 1.506 MB / 495.1 MB, free: 4.934 MB / 366.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.002168/0.1373, allocations: 1.898 MB / 497 MB, free: 3.027 MB / 366.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0004431/0.1378, allocations: 300 kB / 497.3 MB, free: 2.734 MB / 366.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.001201/0.139, allocations: 0.5506 MB / 497.8 MB, free: 2.184 MB / 366.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0006496/0.1396, allocations: 0.7471 MB / 498.6 MB, free: 1.434 MB / 366.1 MB Notification: Performance of NFVerifyModel.verify: time 0.001762/0.1414, allocations: 1.691 MB / 0.4885 GB, free: 15.73 MB / 382.1 MB Notification: Performance of NFConvertDAE.convert: time 0.004299/0.1457, allocations: 3.653 MB / 0.4921 GB, free: 12.07 MB / 382.1 MB Notification: Performance of FrontEnd - DAE generated: time 5.069e-06/0.1457, allocations: 0 / 0.4921 GB, free: 12.07 MB / 382.1 MB Notification: Performance of FrontEnd: time 1.793e-06/0.1457, allocations: 0 / 0.4921 GB, free: 12.07 MB / 382.1 MB Notification: Performance of Transformations before backend: time 3.994e-05/0.1458, allocations: 4 kB / 0.4921 GB, free: 12.06 MB / 382.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 598 * Number of variables: 598 Notification: Performance of Generate backend data structure: time 0.03393/0.1797, allocations: 8.271 MB / 0.5002 GB, free: 3.707 MB / 382.1 MB Notification: Performance of prepare preOptimizeDAE: time 5.535e-05/0.1798, allocations: 11.89 kB / 0.5002 GB, free: 3.695 MB / 382.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0005138/0.1803, allocations: 349.4 kB / 0.5005 GB, free: 3.344 MB / 382.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0008104/0.1811, allocations: 394.7 kB / 0.5009 GB, free: 2.957 MB / 382.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002544/0.1837, allocations: 1.556 MB / 0.5024 GB, free: 1.355 MB / 382.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.000516/0.1842, allocations: 0.758 MB / 0.5032 GB, free: 484 kB / 382.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0004055/0.1846, allocations: 268.4 kB / 0.5034 GB, free: 216 kB / 382.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.2034/0.388, allocations: 3.783 MB / 0.5071 GB, free: 40.1 MB / 382.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 4.307e-05/0.3881, allocations: 1.125 kB / 0.5071 GB, free: 40.1 MB / 382.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.000299/0.3884, allocations: 110.4 kB / 0.5072 GB, free: 40.02 MB / 382.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.916e-05/0.3885, allocations: 56.27 kB / 0.5073 GB, free: 40.02 MB / 382.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.005889/0.3944, allocations: 3.591 MB / 0.5108 GB, free: 38.5 MB / 382.1 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 0.01851/0.4129, allocations: 14.08 MB / 0.5245 GB, free: 29.22 MB / 382.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.005995/0.4189, allocations: 7.58 MB / 0.5319 GB, free: 23.96 MB / 382.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.002957/0.4219, allocations: 2.829 MB / 0.5347 GB, free: 22.41 MB / 382.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.0003333/0.4223, allocations: 93.72 kB / 0.5348 GB, free: 22.38 MB / 382.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.003642/0.4259, allocations: 3.011 MB / 0.5377 GB, free: 20.59 MB / 382.1 MB Notification: Performance of pre-optimization done (n=453): time 5.801e-06/0.4259, allocations: 0 / 0.5377 GB, free: 20.59 MB / 382.1 MB Notification: Performance of matching and sorting (n=453): time 0.01124/0.4372, allocations: 9.065 MB / 0.5466 GB, free: 13.49 MB / 382.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 6.311e-05/0.4373, allocations: 176.1 kB / 0.5467 GB, free: 13.29 MB / 382.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001709/0.439, allocations: 1.479 MB / 0.5482 GB, free: 11.83 MB / 382.1 MB Notification: Performance of collectPreVariables (initialization): time 0.0004487/0.4394, allocations: 133.7 kB / 0.5483 GB, free: 11.69 MB / 382.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0004326/0.4399, allocations: 0.857 MB / 0.5492 GB, free: 10.91 MB / 382.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0008877/0.4408, allocations: 1.52 MB / 0.5506 GB, free: 9.609 MB / 382.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.00105/0.4418, allocations: 0.7463 MB / 0.5514 GB, free: 8.852 MB / 382.1 MB Notification: Performance of setup shared object (initialization): time 5.01e-05/0.4419, allocations: 305.1 kB / 0.5517 GB, free: 8.551 MB / 382.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.002924/0.4448, allocations: 2.45 MB / 0.554 GB, free: 6.094 MB / 382.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.003219/0.448, allocations: 2.761 MB / 0.5567 GB, free: 3.297 MB / 382.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.007311/0.4554, allocations: 5.306 MB / 0.5619 GB, free: 13.92 MB / 398.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.291e-05/0.4554, allocations: 0 / 0.5619 GB, free: 13.92 MB / 398.1 MB Notification: Performance of matching and sorting (n=590) (initialization): time 0.01415/0.4696, allocations: 7.921 MB / 0.5697 GB, free: 5.914 MB / 398.1 MB Notification: Performance of prepare postOptimizeDAE: time 3.152e-05/0.4696, allocations: 11.84 kB / 0.5697 GB, free: 5.906 MB / 398.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.496e-05/0.4696, allocations: 0 / 0.5697 GB, free: 5.906 MB / 398.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.04411/0.5138, allocations: 21.48 MB / 0.5907 GB, free: 428 kB / 414.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002528/0.5163, allocations: 0.543 MB / 0.5912 GB, free: 15.88 MB / 430.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01604/0.5324, allocations: 6.869 MB / 0.5979 GB, free: 8.965 MB / 430.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003401/0.5358, allocations: 424.6 kB / 0.5983 GB, free: 8.633 MB / 430.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003681/0.5362, allocations: 152 kB / 0.5984 GB, free: 8.484 MB / 430.1 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 60 (b61106.degradedMode,$PRE.b61106.degradedMode,b87656.degradedMode,$PRE.b87656.degradedMode,b56131.degradedMode,$PRE.b56131.degradedMode,b61275.degradedMode,$PRE.b61275.degradedMode,b61273.degradedMode,$PRE.b61273.degradedMode,b61274.degradedMode,$PRE.b61274.degradedMode,b61089.degradedMode,$PRE.b61089.degradedMode,b61227.degradedMode,$PRE.b61227.degradedMode,b11403.degradedMode,$PRE.b11403.degradedMode,b11407.degradedMode,$PRE.b11407.degradedMode,b61254.degradedMode,$PRE.b61254.degradedMode,b61260.degradedMode,$PRE.b61260.degradedMode,b11465.degradedMode,$PRE.b11465.degradedMode,b87694.degradedMode,$PRE.b87694.degradedMode,b61121.degradedMode,$PRE.b61121.degradedMode,b61232.degradedMode,$PRE.b61232.degradedMode,b11480.degradedMode,$PRE.b11480.degradedMode,b61256.degradedMode,$PRE.b61256.degradedMode,b11458.degradedMode,$PRE.b11458.degradedMode,b61280.degradedMode,$PRE.b61280.degradedMode,$whenCondition1,$whenCondition2,$whenCondition3,$whenCondition4,$whenCondition5,$whenCondition6,$whenCondition7,$whenCondition8,$whenCondition9,$whenCondition10,$whenCondition11,$whenCondition12,$whenCondition13,$whenCondition14,$whenCondition15,$whenCondition16,$whenCondition17,$whenCondition18,$whenCondition19,$whenCondition20) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (375): * Single equations (assignments): 374 * 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 {(79,137)} Notification: Performance of prepare postOptimizeDAE: time 0.001311/0.5375, allocations: 0.5415 MB / 0.599 GB, free: 7.934 MB / 430.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0006695/0.5382, allocations: 310.1 kB / 0.5993 GB, free: 7.629 MB / 430.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01309/0.5513, allocations: 7.789 MB / 0.6069 GB, free: 15.82 MB / 446.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.915e-05/0.5514, allocations: 48 kB / 0.6069 GB, free: 15.78 MB / 446.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 9.748e-06/0.5514, allocations: 0 / 0.6069 GB, free: 15.78 MB / 446.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.911e-05/0.5514, allocations: 27.41 kB / 0.6069 GB, free: 15.75 MB / 446.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.02037/0.5718, allocations: 12.49 MB / 0.6191 GB, free: 3.289 MB / 446.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.296e-05/0.5719, allocations: 0 / 0.6191 GB, free: 3.289 MB / 446.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001291/0.5732, allocations: 407.4 kB / 0.6195 GB, free: 2.891 MB / 446.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.03306/0.6062, allocations: 10.1 MB / 0.6294 GB, free: 8.777 MB / 462.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.000922/0.6072, allocations: 99.97 kB / 0.6295 GB, free: 8.68 MB / 462.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.01442/0.6216, allocations: 7.051 MB / 0.6364 GB, free: 1.598 MB / 462.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.447e-06/0.6217, allocations: 0 / 0.6364 GB, free: 1.598 MB / 462.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01429/0.636, allocations: 7.669 MB / 0.6439 GB, free: 9.914 MB / 478.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.00187/0.6379, allocations: 0.974 MB / 0.6448 GB, free: 8.918 MB / 478.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0004573/0.6384, allocations: 88 kB / 0.6449 GB, free: 8.832 MB / 478.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002726/0.6411, allocations: 263.7 kB / 0.6451 GB, free: 8.574 MB / 478.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0006916/0.6418, allocations: 303.5 kB / 0.6454 GB, free: 8.277 MB / 478.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0003432/0.6421, allocations: 156 kB / 0.6456 GB, free: 8.125 MB / 478.1 MB Notification: Performance of sorting global known variables: time 0.001482/0.6436, allocations: 0.9269 MB / 0.6465 GB, free: 7.207 MB / 478.1 MB Notification: Performance of sort global known variables: time 1.6e-07/0.6436, allocations: 0 / 0.6465 GB, free: 7.207 MB / 478.1 MB Notification: Performance of remove unused functions: time 0.002124/0.6458, allocations: 1.066 MB / 0.6475 GB, free: 6.141 MB / 478.1 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 40 ($whenCondition20,$whenCondition19,$whenCondition18,$whenCondition17,$whenCondition16,$whenCondition15,$whenCondition14,$whenCondition13,$whenCondition12,$whenCondition11,$whenCondition10,$whenCondition9,$whenCondition8,$whenCondition7,$whenCondition6,$whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,b61280.degradedMode,b11458.degradedMode,b61256.degradedMode,b11480.degradedMode,b61232.degradedMode,b61121.degradedMode,b87694.degradedMode,b11465.degradedMode,b61260.degradedMode,b61254.degradedMode,b11407.degradedMode,b11403.degradedMode,b61227.degradedMode,b61089.degradedMode,b61274.degradedMode,b61273.degradedMode,b61275.degradedMode,b56131.degradedMode,b87656.degradedMode,b61106.degradedMode) * Number of discrete states: 20 (b61089.degradedMode,b11407.degradedMode,b11403.degradedMode,b61275.degradedMode,b61273.degradedMode,b61254.degradedMode,b61274.degradedMode,b61260.degradedMode,b11465.degradedMode,b61227.degradedMode,b87656.degradedMode,b56131.degradedMode,b61256.degradedMode,b11480.degradedMode,b87694.degradedMode,b61232.degradedMode,b11458.degradedMode,b61121.degradedMode,b61280.degradedMode,b61106.degradedMode) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (270): * Single equations (assignments): 269 * 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 {(80,156)} Notification: Performance of Backend phase and start with SimCode phase: time 0.01435/0.6601, allocations: 8.412 MB / 0.6557 GB, free: 13.7 MB / 494.1 MB Notification: Performance of simCode: created initialization part: time 0.01773/0.6779, allocations: 7.065 MB / 0.6626 GB, free: 6.645 MB / 494.1 MB Notification: Performance of simCode: created event and clocks part: time 1.611e-05/0.678, allocations: 7 kB / 0.6627 GB, free: 6.633 MB / 494.1 MB Notification: Performance of simCode: created simulation system equations: time 0.01234/0.6903, allocations: 4.158 MB / 0.6667 GB, free: 2.488 MB / 494.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002572/0.6929, allocations: 398.2 kB / 0.6671 GB, free: 2.105 MB / 494.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.05946/0.7524, allocations: 32.94 MB / 0.6993 GB, free: 0.9492 MB / 0.5137 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.187/0.9394, allocations: 1.716 MB / 0.7009 GB, free: 177.7 MB / 0.5137 GB Notification: Performance of simCode: alias equations: time 0.001373/0.9408, allocations: 335.8 kB / 0.7013 GB, free: 177.7 MB / 0.5137 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001235/0.9421, allocations: 1.144 MB / 0.7024 GB, free: 177.7 MB / 0.5137 GB Notification: Performance of SimCode: time 7.82e-07/0.9421, allocations: 0 / 0.7024 GB, free: 177.7 MB / 0.5137 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.1217/1.064, allocations: 95.08 MB / 0.7952 GB, free: 102.1 MB / 0.5137 GB Notification: Performance of buildModelFMU: Generate platform static: time 17.47/18.53, allocations: 13.12 kB / 0.7952 GB, free: 102.1 MB / 0.5137 GB (rm -f PowerSysPro_PowerSysPro.Examples.LargerNetwork.pipe ; mkfifo PowerSysPro_PowerSysPro.Examples.LargerNetwork.pipe ; head -c 1048576 < PowerSysPro_PowerSysPro.Examples.LargerNetwork.pipe >> ../files/PowerSysPro_PowerSysPro.Examples.LargerNetwork.sim & python3 -m fmpy simulate --output-file PowerSysPro_PowerSysPro.Examples.LargerNetwork_res.csv --start-time 0 --stop-time 1 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.0004 PowerSysPro_PowerSysPro_Examples_LargerNetwork.fmu > PowerSysPro_PowerSysPro.Examples.LargerNetwork.pipe 2>&1)