Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ExternalMedia_ExternalMedia.Test.GenericModels.TestRunnerTwoPhase.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/ExternalMedia 4.0.0/package.mo", uses=false) Using package ExternalMedia with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ExternalMedia 4.0.0/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: translateModel(ExternalMedia.Test.GenericModels.TestRunnerTwoPhase,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="ExternalMedia_ExternalMedia.Test.GenericModels.TestRunnerTwoPhase") translateModel(ExternalMedia.Test.GenericModels.TestRunnerTwoPhase,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="ExternalMedia_ExternalMedia.Test.GenericModels.TestRunnerTwoPhase") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001688/0.001695, allocations: 108 kB / 15.6 MB, free: 132 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.002726/0.002726, allocations: 193.6 kB / 16.53 MB, free: 6.391 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.453/1.453, allocations: 222.9 MB / 240.2 MB, free: 4.41 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ExternalMedia 4.0.0/package.mo): time 0.1436/0.1436, allocations: 2.759 MB / 293.1 MB, free: 3.695 MB / 238.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001403/0.001404, allocations: 59.91 kB / 354.4 MB, free: 4.422 MB / 286.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1021/0.1035, allocations: 50.24 MB / 404.6 MB, free: 2.137 MB / 334.1 MB Notification: Performance of NFInst.instantiate(ExternalMedia.Test.GenericModels.TestRunnerTwoPhase): time 0.2767/0.3802, allocations: 106.3 MB / 0.499 GB, free: 12.82 MB / 382.1 MB Notification: Performance of NFInst.instExpressions: time 0.05823/0.4385, allocations: 59.83 MB / 0.5574 GB, free: 10.08 MB / 430.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.001961/0.4405, allocations: 12 kB / 0.5574 GB, free: 10.07 MB / 430.1 MB Notification: Performance of NFTyping.typeComponents: time 0.003005/0.4435, allocations: 1.188 MB / 0.5586 GB, free: 8.871 MB / 430.1 MB Notification: Performance of NFTyping.typeBindings: time 0.03524/0.4788, allocations: 13.22 MB / 0.5715 GB, free: 11.62 MB / 446.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.008178/0.487, allocations: 3.173 MB / 0.5746 GB, free: 8.449 MB / 446.1 MB Notification: Performance of NFFlatten.flatten: time 0.004024/0.491, allocations: 2.967 MB / 0.5775 GB, free: 5.477 MB / 446.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.0005003/0.4915, allocations: 182.7 kB / 0.5777 GB, free: 5.285 MB / 446.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.001927/0.4935, allocations: 1.078 MB / 0.5787 GB, free: 4.203 MB / 446.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.001748/0.4952, allocations: 0.9258 MB / 0.5796 GB, free: 3.273 MB / 446.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0003412/0.4956, allocations: 144 kB / 0.5797 GB, free: 3.133 MB / 446.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.2561/0.7517, allocations: 10.95 MB / 0.5904 GB, free: 20.18 MB / 446.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0005063/0.7523, allocations: 375.6 kB / 0.5908 GB, free: 20.18 MB / 446.1 MB Notification: Performance of NFVerifyModel.verify: time 0.001709/0.754, allocations: 1.021 MB / 0.5918 GB, free: 20.18 MB / 446.1 MB Notification: Performance of NFConvertDAE.convert: time 0.03282/0.7868, allocations: 8.652 MB / 0.6002 GB, free: 19.99 MB / 446.1 MB Notification: Performance of FrontEnd - DAE generated: time 8.797e-06/0.7869, allocations: 0 / 0.6002 GB, free: 19.99 MB / 446.1 MB Notification: Performance of FrontEnd: time 2.445e-06/0.7869, allocations: 0.7188 kB / 0.6002 GB, free: 19.99 MB / 446.1 MB Notification: Performance of Transformations before backend: time 2.966e-05/0.7869, allocations: 0 / 0.6002 GB, free: 19.99 MB / 446.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 526 * Number of variables: 526 Notification: Performance of Generate backend data structure: time 0.009619/0.7965, allocations: 3.201 MB / 0.6034 GB, free: 18.59 MB / 446.1 MB Notification: Performance of prepare preOptimizeDAE: time 5.139e-05/0.7966, allocations: 10.03 kB / 0.6034 GB, free: 18.59 MB / 446.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01545/0.8121, allocations: 1.855 MB / 0.6052 GB, free: 18.51 MB / 446.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002206/0.8143, allocations: 1.096 MB / 0.6063 GB, free: 18.24 MB / 446.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.000163/0.8145, allocations: 167.6 kB / 0.6064 GB, free: 18.23 MB / 446.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0003411/0.8148, allocations: 200 kB / 0.6066 GB, free: 18.23 MB / 446.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.02348/0.8383, allocations: 6.864 MB / 0.6133 GB, free: 17.81 MB / 446.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 0.000104/0.8385, allocations: 5.281 kB / 0.6133 GB, free: 17.81 MB / 446.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0007023/0.8392, allocations: 86.86 kB / 0.6134 GB, free: 17.81 MB / 446.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001132/0.8393, allocations: 53.73 kB / 0.6135 GB, free: 17.81 MB / 446.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.02479/0.8641, allocations: 8.231 MB / 0.6215 GB, free: 17.79 MB / 446.1 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 0.01615/0.8803, allocations: 15.6 MB / 0.6367 GB, free: 23.08 MB / 462.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.0173/0.8976, allocations: 5.646 MB / 0.6422 GB, free: 23.02 MB / 462.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.002302/0.9, allocations: 1.22 MB / 0.6434 GB, free: 23 MB / 462.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.1098/1.01, allocations: 52 MB / 0.6942 GB, free: 2.5 MB / 494.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.978e-05/1.01, allocations: 61.44 kB / 0.6943 GB, free: 2.449 MB / 494.1 MB Notification: Performance of pre-optimization done (n=242): time 5.461e-06/1.01, allocations: 7.844 kB / 0.6943 GB, free: 2.445 MB / 494.1 MB Notification: Performance of matching and sorting (n=246): time 0.05094/1.061, allocations: 14.39 MB / 0.7083 GB, free: 6.141 MB / 0.4981 GB Notification: Performance of inlineWhenForInitialization (initialization): time 6.852e-05/1.061, allocations: 107.1 kB / 0.7084 GB, free: 6.016 MB / 0.4981 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0004817/1.061, allocations: 345.2 kB / 0.7088 GB, free: 5.676 MB / 0.4981 GB Notification: Performance of collectPreVariables (initialization): time 0.0006867/1.062, allocations: 61.7 kB / 0.7088 GB, free: 5.609 MB / 0.4981 GB Notification: Performance of collectInitialEqns (initialization): time 0.0003719/1.063, allocations: 0.5423 MB / 0.7094 GB, free: 5.066 MB / 0.4981 GB Notification: Performance of collectInitialBindings (initialization): time 0.001317/1.064, allocations: 0.8176 MB / 0.7102 GB, free: 4.254 MB / 0.4981 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.002141/1.066, allocations: 0.9726 MB / 0.7111 GB, free: 3.273 MB / 0.4981 GB Notification: Performance of setup shared object (initialization): time 0.0001105/1.066, allocations: 314 kB / 0.7114 GB, free: 2.961 MB / 0.4981 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.004194/1.07, allocations: 2.078 MB / 0.7134 GB, free: 0.8789 MB / 0.4981 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.005119/1.075, allocations: 2.64 MB / 0.716 GB, free: 14.02 MB / 0.5137 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01027/1.086, allocations: 4.513 MB / 0.7204 GB, free: 9.352 MB / 0.5137 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.607e-05/1.086, allocations: 4 kB / 0.7204 GB, free: 9.348 MB / 0.5137 GB Notification: Performance of matching and sorting (n=308) (initialization): time 0.01347/1.099, allocations: 5.545 MB / 0.7258 GB, free: 3.883 MB / 0.5137 GB Notification: Performance of prepare postOptimizeDAE: time 3.377e-05/1.099, allocations: 14.19 kB / 0.7259 GB, free: 3.871 MB / 0.5137 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.158e-05/1.099, allocations: 20 kB / 0.7259 GB, free: 3.852 MB / 0.5137 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001512/1.101, allocations: 307.3 kB / 0.7262 GB, free: 3.543 MB / 0.5137 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003627/1.105, allocations: 1.067 MB / 0.7272 GB, free: 2.508 MB / 0.5137 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.00189/1.107, allocations: 1.892 MB / 0.7291 GB, free: 0.5508 MB / 0.5137 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002296/1.109, allocations: 92 kB / 0.7291 GB, free: 472 kB / 0.5137 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0007588/1.11, allocations: 402.9 kB / 0.7295 GB, free: 72 kB / 0.5137 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 73 * Number of states: 0 () * Number of discrete variables: 17 (testBasePropertiesDynamic.medium.phase,testBasePropertiesImplicit.medium2.baseProperties.phase,testBasePropertiesImplicit.medium1.baseProperties.phase,testBasePropertiesExplicit.medium2.baseProperties.phase,testBasePropertiesExplicit.medium1.baseProperties.phase,testStatesSat.state2.phase,testStatesSat.state1.phase,testStates.state2.phase,testStates.state1.phase,testStatesSat.completeBubbleDewStates2.bubbleStateTwoPhase.state.phase,testStatesSat.completeBubbleDewStates2.bubbleStateOnePhase.state.phase,testStatesSat.completeBubbleDewStates2.dewStateTwoPhase.state.phase,testStatesSat.completeBubbleDewStates2.dewStateOnePhase.state.phase,testStatesSat.completeBubbleDewStates1.bubbleStateTwoPhase.state.phase,testStatesSat.completeBubbleDewStates1.bubbleStateOnePhase.state.phase,testStatesSat.completeBubbleDewStates1.dewStateTwoPhase.state.phase,testStatesSat.completeBubbleDewStates1.dewStateOnePhase.state.phase) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (293): * Single equations (assignments): 287 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 3 * 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 {(3,8), (1,1), (1,1)} Notification: Performance of prepare postOptimizeDAE: time 0.001778/1.111, allocations: 434.1 kB / 0.7299 GB, free: 15.67 MB / 0.5294 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.00107/1.112, allocations: 110.9 kB / 0.73 GB, free: 15.56 MB / 0.5294 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.04845/1.161, allocations: 46.86 MB / 0.7758 GB, free: 0.6367 MB / 0.5606 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 0.0001818/1.161, allocations: 167.7 kB / 0.776 GB, free: 484 kB / 0.5606 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.346e-05/1.161, allocations: 3.375 kB / 0.776 GB, free: 484 kB / 0.5606 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 8.231e-05/1.161, allocations: 19.94 kB / 0.776 GB, free: 464 kB / 0.5606 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.272/1.433, allocations: 65.7 MB / 0.8401 GB, free: 225.9 MB / 0.5606 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.08e-05/1.433, allocations: 2.156 kB / 0.8401 GB, free: 225.9 MB / 0.5606 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003384/1.437, allocations: 0.676 MB / 0.8408 GB, free: 225.5 MB / 0.5606 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0009303/1.438, allocations: 0.508 MB / 0.8413 GB, free: 225.1 MB / 0.5606 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.000731/1.438, allocations: 71.05 kB / 0.8414 GB, free: 225 MB / 0.5606 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.00134/1.44, allocations: 2.037 MB / 0.8434 GB, free: 223.1 MB / 0.5606 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.084e-06/1.44, allocations: 0 / 0.8434 GB, free: 223.1 MB / 0.5606 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01389/1.454, allocations: 10.92 MB / 0.854 GB, free: 213.1 MB / 0.5606 GB Notification: Performance of postOpt removeConstants (simulation): time 0.000522/1.454, allocations: 435.9 kB / 0.8544 GB, free: 212.7 MB / 0.5606 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0004493/1.455, allocations: 52 kB / 0.8545 GB, free: 212.6 MB / 0.5606 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.00166/1.456, allocations: 99.11 kB / 0.8546 GB, free: 212.6 MB / 0.5606 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0004489/1.457, allocations: 187.5 kB / 0.8548 GB, free: 212.4 MB / 0.5606 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002437/1.457, allocations: 98.8 kB / 0.8549 GB, free: 212.4 MB / 0.5606 GB Notification: Performance of sorting global known variables: time 0.0002278/1.457, allocations: 209.8 kB / 0.8551 GB, free: 212.2 MB / 0.5606 GB Notification: Performance of sort global known variables: time 1.21e-07/1.457, allocations: 0 / 0.8551 GB, free: 212.2 MB / 0.5606 GB Notification: Performance of remove unused functions: time 0.006343/1.464, allocations: 1.74 MB / 0.8568 GB, free: 210.6 MB / 0.5606 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 2 (testBasePropertiesDynamic.medium.p,testBasePropertiesDynamic.medium.h) * Number of discrete variables: 80 ($cse1.region3boundary,$cse2.region3boundary,$cse3.region3boundary,$cse4.region3boundary,$cse5.phase,$cse5.region,$cse6.phase,$cse6.region,$cse7.region3boundary,$cse8.region3boundary,$cse9.region3boundary,$cse10.region3boundary,$cse11.phase,$cse11.region,$cse12.phase,$cse12.region,$cse13.region3boundary,$cse14.region3boundary,$cse15.phase,$cse15.region,$cse16.phase,$cse16.region,$cse17.region3boundary,$cse18.region3boundary,$cse19.phase,$cse19.region,$cse20.phase,$cse20.region,$cse21.phase,$cse21.region,$cse22.phase,$cse22.region,$cse23.phase,$cse23.region,$cse24.phase,$cse24.region,$cse25.phase,$cse25.region,$cse26.phase,$cse26.region,$cse27.phase,$cse27.region,$cse28.phase,$cse28.region,$cse29.phase,$cse29.region,$cse30.phase,$cse30.region,$cse31.phase,$cse31.region,$cse32.phase,$cse32.region,$cse33.region3boundary,$cse34.region3boundary,$cse35.region3boundary,$cse36.region3boundary,$cse37.region3boundary,$cse38.region3boundary,$cse39.region3boundary,$cse40.region3boundary,$cse41.phase,$cse41.region,$cse42.phase,$cse42.region,$cse43.phase,$cse43.region,$cse44.phase,$cse44.region,$cse45.region3boundary,$cse46.phase,$cse46.region,$cse47.region3boundary,$cse48.region3boundary,$cse49.phase,$cse49.region,testBasePropertiesExplicit.medium1.baseProperties.phase,testBasePropertiesExplicit.medium2.baseProperties.phase,testBasePropertiesImplicit.medium1.baseProperties.phase,testBasePropertiesImplicit.medium2.baseProperties.phase,testBasePropertiesDynamic.medium.phase) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (287): * Single equations (assignments): 234 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 50 * 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 {(1,1), (1,2), (1,2)} Notification: Performance of Backend phase and start with SimCode phase: time 0.008647/1.472, allocations: 1.593 MB / 0.8583 GB, free: 209.5 MB / 0.5606 GB Notification: Performance of simCode: created initialization part: time 0.02604/1.498, allocations: 5.925 MB / 0.8641 GB, free: 204.3 MB / 0.5606 GB Notification: Performance of simCode: created event and clocks part: time 8.175e-06/1.499, allocations: 4 kB / 0.8641 GB, free: 204.3 MB / 0.5606 GB Notification: Performance of simCode: created simulation system equations: time 0.00504/1.504, allocations: 3.752 MB / 0.8678 GB, free: 200.9 MB / 0.5606 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003167/1.507, allocations: 0.6506 MB / 0.8684 GB, free: 200.5 MB / 0.5606 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.008555/1.515, allocations: 7.814 MB / 0.876 GB, free: 193.4 MB / 0.5606 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0009101/1.516, allocations: 1.933 MB / 0.8779 GB, free: 191.9 MB / 0.5606 GB Notification: Performance of simCode: alias equations: time 0.008897/1.525, allocations: 11.73 MB / 0.8894 GB, free: 180.8 MB / 0.5606 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001745/1.527, allocations: 494.9 kB / 0.8899 GB, free: 180.3 MB / 0.5606 GB Notification: Performance of SimCode: time 6.71e-07/1.527, allocations: 0 / 0.8899 GB, free: 180.3 MB / 0.5606 GB Notification: Performance of Templates: time 0.1596/1.687, allocations: 108.7 MB / 0.996 GB, free: 71.77 MB / 0.5606 GB make -j1 -f ExternalMedia_ExternalMedia.Test.GenericModels.TestRunnerTwoPhase.makefile (rm -f ExternalMedia_ExternalMedia.Test.GenericModels.TestRunnerTwoPhase.pipe ; mkfifo ExternalMedia_ExternalMedia.Test.GenericModels.TestRunnerTwoPhase.pipe ; head -c 1048576 < ExternalMedia_ExternalMedia.Test.GenericModels.TestRunnerTwoPhase.pipe >> ../files/ExternalMedia_ExternalMedia.Test.GenericModels.TestRunnerTwoPhase.sim & ./ExternalMedia_ExternalMedia.Test.GenericModels.TestRunnerTwoPhase -abortSlowSimulation -alarm=480 -lv LOG_STATS > ExternalMedia_ExternalMedia.Test.GenericModels.TestRunnerTwoPhase.pipe 2>&1)