Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr IDEAS_IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelDp.conf.json 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/IDEAS 3.0.0/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/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/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 IDEAS with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/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) Running command: translateModel(IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelDp,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IDEAS_IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelDp") translateModel(IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelDp,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IDEAS_IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelDp") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.00161/0.00161, allocations: 183.2 kB / 15.98 MB, free: 5.77 MB / 13.93 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/package.mo): time 0.907/0.907, allocations: 132.2 MB / 148.9 MB, free: 12.11 MB / 122.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.483/1.483, allocations: 222.9 MB / 403.4 MB, free: 7.109 MB / 314.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001218/0.001218, allocations: 114.5 kB / 484.3 MB, free: 8.703 MB / 394.7 MB Notification: Performance of FrontEnd - loaded program: time 0.001012/0.001012, allocations: 51.92 kB / 0.5618 GB, free: 71.03 MB / 426.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1402/0.1413, allocations: 80.2 MB / 0.6402 GB, free: 6.762 MB / 442.7 MB Notification: Performance of NFInst.instantiate(IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelDp): time 0.4664/0.6077, allocations: 159.3 MB / 0.7958 GB, free: 3.848 MB / 0.5261 GB Notification: Performance of NFInst.instExpressions: time 0.004621/0.6124, allocations: 3.644 MB / 0.7993 GB, free: 204 kB / 0.5261 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0003209/0.6128, allocations: 11.94 kB / 0.7994 GB, free: 192 kB / 0.5261 GB Notification: Performance of NFTyping.typeComponents: time 0.0005678/0.6134, allocations: 135.2 kB / 0.7995 GB, free: 56 kB / 0.5261 GB Notification: Performance of NFTyping.typeBindings: time 0.001275/0.6147, allocations: 0.498 MB / 0.8 GB, free: 15.55 MB / 0.5417 GB Notification: Performance of NFTyping.typeClassSections: time 0.001318/0.616, allocations: 387.6 kB / 0.8003 GB, free: 15.18 MB / 0.5417 GB Notification: Performance of NFFlatten.flatten: time 0.003543/0.6196, allocations: 3.526 MB / 0.8038 GB, free: 11.65 MB / 0.5417 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002767/0.6223, allocations: 2.242 MB / 0.806 GB, free: 9.391 MB / 0.5417 GB Notification: Performance of NFEvalConstants.evaluate: time 0.001739/0.6241, allocations: 0.9415 MB / 0.8069 GB, free: 8.445 MB / 0.5417 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0008978/0.625, allocations: 0.7467 MB / 0.8076 GB, free: 7.695 MB / 0.5417 GB Notification: Performance of NFPackage.collectConstants: time 9.161e-05/0.6251, allocations: 40 kB / 0.8077 GB, free: 7.656 MB / 0.5417 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001472/0.6266, allocations: 0.8068 MB / 0.8084 GB, free: 6.848 MB / 0.5417 GB Notification: Performance of NFScalarize.scalarize: time 0.0002754/0.6269, allocations: 286.9 kB / 0.8087 GB, free: 6.566 MB / 0.5417 GB Notification: Performance of NFVerifyModel.verify: time 0.0005837/0.6275, allocations: 0.5206 MB / 0.8092 GB, free: 6.043 MB / 0.5417 GB Notification: Performance of NFConvertDAE.convert: time 0.001447/0.6289, allocations: 1.406 MB / 0.8106 GB, free: 4.633 MB / 0.5417 GB Notification: Performance of FrontEnd - DAE generated: time 5.04e-06/0.629, allocations: 0 / 0.8106 GB, free: 4.633 MB / 0.5417 GB Notification: Performance of FrontEnd: time 1.263e-06/0.629, allocations: 0 / 0.8106 GB, free: 4.633 MB / 0.5417 GB Notification: Performance of Transformations before backend: time 1.175e-05/0.629, allocations: 4 kB / 0.8106 GB, free: 4.629 MB / 0.5417 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 125 * Number of variables: 125 Notification: Performance of Generate backend data structure: time 0.002208/0.6312, allocations: 1.454 MB / 0.812 GB, free: 3.113 MB / 0.5417 GB Notification: Performance of prepare preOptimizeDAE: time 3.593e-05/0.6312, allocations: 16.03 kB / 0.812 GB, free: 3.098 MB / 0.5417 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0006874/0.6319, allocations: 190.4 kB / 0.8122 GB, free: 2.91 MB / 0.5417 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.00125/0.6332, allocations: 0.8023 MB / 0.813 GB, free: 2.051 MB / 0.5417 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.712e-05/0.6332, allocations: 45 kB / 0.813 GB, free: 2.008 MB / 0.5417 GB Notification: Performance of preOpt expandDerOperator (simulation): time 8.311e-05/0.6333, allocations: 60 kB / 0.8131 GB, free: 1.949 MB / 0.5417 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001096/0.6344, allocations: 0.8161 MB / 0.8139 GB, free: 1.051 MB / 0.5417 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.695e-05/0.6345, allocations: 7.938 kB / 0.8139 GB, free: 1.043 MB / 0.5417 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 4.885e-05/0.6345, allocations: 20 kB / 0.8139 GB, free: 1.023 MB / 0.5417 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.589e-05/0.6345, allocations: 19.94 kB / 0.8139 GB, free: 1.004 MB / 0.5417 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0008917/0.6354, allocations: 0.5657 MB / 0.8145 GB, free: 452 kB / 0.5417 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 0.003693/0.6391, allocations: 4.204 MB / 0.8186 GB, free: 11.97 MB / 0.5573 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0006983/0.6398, allocations: 439.9 kB / 0.819 GB, free: 11.53 MB / 0.5573 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0004627/0.6403, allocations: 353.9 kB / 0.8194 GB, free: 11.18 MB / 0.5573 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0003215/0.6407, allocations: 198.2 kB / 0.8196 GB, free: 10.95 MB / 0.5573 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0005118/0.6412, allocations: 319.1 kB / 0.8199 GB, free: 10.62 MB / 0.5573 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.0001817/0.6414, allocations: 31.69 kB / 0.8199 GB, free: 10.59 MB / 0.5573 GB Notification: Performance of pre-optimization done (n=33): time 1.773e-06/0.6414, allocations: 0 / 0.8199 GB, free: 10.59 MB / 0.5573 GB Notification: Performance of matching and sorting (n=33): time 0.001352/0.6427, allocations: 0.7037 MB / 0.8206 GB, free: 9.879 MB / 0.5573 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.915e-05/0.6428, allocations: 89.08 kB / 0.8207 GB, free: 9.773 MB / 0.5573 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001246/0.6441, allocations: 1.155 MB / 0.8218 GB, free: 8.602 MB / 0.5573 GB Notification: Performance of collectPreVariables (initialization): time 4.081e-05/0.6441, allocations: 37.7 kB / 0.8218 GB, free: 8.559 MB / 0.5573 GB Notification: Performance of collectInitialEqns (initialization): time 0.0003625/0.6445, allocations: 488.5 kB / 0.8223 GB, free: 8.078 MB / 0.5573 GB Notification: Performance of collectInitialBindings (initialization): time 9.97e-05/0.6446, allocations: 114.4 kB / 0.8224 GB, free: 7.965 MB / 0.5573 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001729/0.6448, allocations: 118.1 kB / 0.8225 GB, free: 7.844 MB / 0.5573 GB Notification: Performance of setup shared object (initialization): time 0.0001042/0.6449, allocations: 326 kB / 0.8228 GB, free: 7.52 MB / 0.5573 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0004035/0.6453, allocations: 238.9 kB / 0.823 GB, free: 7.281 MB / 0.5573 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0005923/0.6459, allocations: 0.542 MB / 0.8236 GB, free: 6.609 MB / 0.5573 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0008895/0.6468, allocations: 0.6783 MB / 0.8242 GB, free: 5.852 MB / 0.5573 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.667e-06/0.6468, allocations: 3.938 kB / 0.8242 GB, free: 5.848 MB / 0.5573 GB Notification: Performance of matching and sorting (n=56) (initialization): time 0.001187/0.648, allocations: 0.7636 MB / 0.825 GB, free: 5.07 MB / 0.5573 GB Notification: Performance of prepare postOptimizeDAE: time 3.762e-05/0.648, allocations: 41.69 kB / 0.825 GB, free: 5.023 MB / 0.5573 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.005e-05/0.6481, allocations: 8 kB / 0.825 GB, free: 5.016 MB / 0.5573 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.603e-05/0.6481, allocations: 8 kB / 0.825 GB, free: 5.008 MB / 0.5573 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002204/0.6503, allocations: 362.6 kB / 0.8254 GB, free: 4.656 MB / 0.5573 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003724/0.654, allocations: 6.075 MB / 0.8313 GB, free: 14.35 MB / 0.573 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009251/0.655, allocations: 76 kB / 0.8314 GB, free: 14.27 MB / 0.573 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.292e-05/0.655, allocations: 24 kB / 0.8314 GB, free: 14.25 MB / 0.573 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0007172/0.6558, allocations: 0.5203 MB / 0.8319 GB, free: 13.72 MB / 0.573 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.000532/0.6563, allocations: 0.5069 MB / 0.8324 GB, free: 13.08 MB / 0.573 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0008115/0.6571, allocations: 0.5996 MB / 0.833 GB, free: 12.4 MB / 0.573 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.615e-06/0.6571, allocations: 4 kB / 0.833 GB, free: 12.4 MB / 0.573 GB Notification: Performance of matching and sorting (n=56) (initialization_lambda0): time 0.001052/0.6582, allocations: 0.6893 MB / 0.8337 GB, free: 11.7 MB / 0.573 GB Notification: Performance of prepare postOptimizeDAE: time 3.285e-05/0.6582, allocations: 33.7 kB / 0.8337 GB, free: 11.66 MB / 0.573 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.816e-06/0.6583, allocations: 4.109 kB / 0.8337 GB, free: 11.65 MB / 0.573 GB Notification: Performance of postOpt tearingSystem (initialization): time 8.165e-06/0.6583, allocations: 11.94 kB / 0.8337 GB, free: 11.64 MB / 0.573 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005785/0.6589, allocations: 155.8 kB / 0.8339 GB, free: 11.49 MB / 0.573 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 8.145e-06/0.6589, allocations: 8 kB / 0.8339 GB, free: 11.48 MB / 0.573 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0007647/0.6596, allocations: 88.2 kB / 0.834 GB, free: 11.39 MB / 0.573 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.236e-05/0.6597, allocations: 24 kB / 0.834 GB, free: 11.37 MB / 0.573 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 24 * Number of states: 0 () * Number of discrete variables: 5 (pulse_p.count,$PRE.pulse_p.count,pulse_p.T_start,$PRE.pulse_p.T_start,$whenCondition1) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (55): * Single equations (assignments): 44 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 10 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 10 systems {1, 1, 1, 1, 1, 1, 1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0001893/0.6599, allocations: 225.5 kB / 0.8342 GB, free: 11.14 MB / 0.573 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001189/0.66, allocations: 98.78 kB / 0.8343 GB, free: 11.05 MB / 0.573 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0009617/0.661, allocations: 0.5504 MB / 0.8348 GB, free: 10.49 MB / 0.573 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.122e-06/0.661, allocations: 4 kB / 0.8348 GB, free: 10.48 MB / 0.573 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.959e-06/0.661, allocations: 4 kB / 0.8348 GB, free: 10.48 MB / 0.573 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.081e-06/0.661, allocations: 3.984 kB / 0.8349 GB, free: 10.48 MB / 0.573 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002063/0.6631, allocations: 1.495 MB / 0.8363 GB, free: 8.906 MB / 0.573 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.499e-06/0.6631, allocations: 4 kB / 0.8363 GB, free: 8.902 MB / 0.573 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0007106/0.6638, allocations: 159.7 kB / 0.8365 GB, free: 8.746 MB / 0.573 GB Notification: Performance of postOpt tearingSystem (simulation): time 5.7e-06/0.6638, allocations: 4 kB / 0.8365 GB, free: 8.742 MB / 0.573 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.514e-05/0.6639, allocations: 8 kB / 0.8365 GB, free: 8.734 MB / 0.573 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.002759/0.6666, allocations: 6.021 MB / 0.8424 GB, free: 2.48 MB / 0.573 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.598e-06/0.6667, allocations: 8.281 kB / 0.8424 GB, free: 2.473 MB / 0.573 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001642/0.6683, allocations: 1.655 MB / 0.844 GB, free: 0.7383 MB / 0.573 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0004034/0.6687, allocations: 227.8 kB / 0.8442 GB, free: 0.4961 MB / 0.573 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001013/0.6688, allocations: 8 kB / 0.8442 GB, free: 500 kB / 0.573 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0005866/0.6694, allocations: 51.94 kB / 0.8443 GB, free: 448 kB / 0.573 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 9.597e-05/0.6695, allocations: 27.95 kB / 0.8443 GB, free: 420 kB / 0.573 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.914e-05/0.6696, allocations: 27.88 kB / 0.8443 GB, free: 392 kB / 0.573 GB Notification: Performance of sorting global known variables: time 0.000941/0.6705, allocations: 0.8159 MB / 0.8451 GB, free: 15.56 MB / 0.5886 GB Notification: Performance of sort global known variables: time 3.81e-07/0.6705, allocations: 0 / 0.8451 GB, free: 15.56 MB / 0.5886 GB Notification: Performance of remove unused functions: time 0.001268/0.6718, allocations: 427.4 kB / 0.8455 GB, free: 15.14 MB / 0.5886 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 8 * Number of states: 0 () * Number of discrete variables: 3 ($whenCondition1,pulse_p.T_start,pulse_p.count) * Number of discrete states: 1 (pulse_p.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (33): * Single equations (assignments): 21 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 2 * If-equations: 0 * Equation systems (not torn): 10 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 10 systems {1, 1, 1, 1, 1, 1, 1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.0004508/0.6723, allocations: 172.5 kB / 0.8457 GB, free: 14.97 MB / 0.5886 GB Notification: Performance of simCode: created initialization part: time 0.003364/0.6756, allocations: 1.167 MB / 0.8468 GB, free: 13.78 MB / 0.5886 GB Notification: Performance of simCode: created event and clocks part: time 3.687e-06/0.6757, allocations: 1.375 kB / 0.8468 GB, free: 13.78 MB / 0.5886 GB Notification: Performance of simCode: created simulation system equations: time 0.0008822/0.6765, allocations: 332.3 kB / 0.8471 GB, free: 13.46 MB / 0.5886 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003278/0.6798, allocations: 0.6315 MB / 0.8478 GB, free: 12.84 MB / 0.5886 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003174/0.683, allocations: 2.439 MB / 0.8501 GB, free: 10.34 MB / 0.5886 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0007757/0.6838, allocations: 1.19 MB / 0.8513 GB, free: 9.117 MB / 0.5886 GB Notification: Performance of simCode: alias equations: time 0.001104/0.6849, allocations: 368.3 kB / 0.8516 GB, free: 8.754 MB / 0.5886 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001771/0.6851, allocations: 71.42 kB / 0.8517 GB, free: 8.684 MB / 0.5886 GB Notification: Performance of SimCode: time 7.62e-07/0.6851, allocations: 0 / 0.8517 GB, free: 8.684 MB / 0.5886 GB Notification: Performance of Templates: time 0.03323/0.7184, allocations: 20.63 MB / 0.8719 GB, free: 4.25 MB / 0.6042 GB make -j1 -f IDEAS_IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelDp.makefile (rm -f IDEAS_IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelDp.pipe ; mkfifo IDEAS_IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelDp.pipe ; head -c 1048576 < IDEAS_IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelDp.pipe >> ../files/IDEAS_IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelDp.sim & ./IDEAS_IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelDp -abortSlowSimulation -alarm=480 -lv LOG_STATS > IDEAS_IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelDp.pipe 2>&1)