Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ThermoSysPro_ThermoSysPro.Fluid.Examples.SimpleExamples.TestAirHumidity.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/package.mo", uses=false) Using package ThermoSysPro with version 4.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/package.mo) Running command: translateModel(ThermoSysPro.Fluid.Examples.SimpleExamples.TestAirHumidity,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="ThermoSysPro_ThermoSysPro.Fluid.Examples.SimpleExamples.TestAirHumidity") translateModel(ThermoSysPro.Fluid.Examples.SimpleExamples.TestAirHumidity,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="ThermoSysPro_ThermoSysPro.Fluid.Examples.SimpleExamples.TestAirHumidity") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/package.mo): time 0.8938/0.8938, allocations: 150.9 MB / 166.5 MB, free: 14.46 MB / 142.1 MB Notification: Performance of FrontEnd - loaded program: time 0.0003236/0.0003236, allocations: 15.92 kB / 237.1 MB, free: 1.781 MB / 190.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.06132/0.06166, allocations: 31.35 MB / 268.4 MB, free: 7.031 MB / 222.1 MB Notification: Automatically loaded package Complex 4.0.0 due to uses annotation from Modelica. Notification: Automatically loaded package ModelicaServices 4.0.0 due to uses annotation from Modelica. Notification: Automatically loaded package Modelica 4.0.0 due to usage. Notification: Performance of NFInst.instantiate(ThermoSysPro.Fluid.Examples.SimpleExamples.TestAirHumidity): time 1.84/1.901, allocations: 295.4 MB / 0.5506 GB, free: 12.54 MB / 446.1 MB Notification: Performance of NFInst.instExpressions: time 0.6361/2.537, allocations: 188.8 MB / 0.735 GB, free: 1.742 MB / 0.5919 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0004249/2.538, allocations: 9.531 kB / 0.735 GB, free: 1.742 MB / 0.5919 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Fluid/BoundaryConditions/AirHumidity.mo:39:3-40:54:writable] Warning: Connector C1 is not balanced: The number of potential variables (9) is not equal to the number of flow variables (0). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Fluid/BoundaryConditions/AirHumidity.mo:47:3-48:52:writable] Warning: Connector C2 is not balanced: The number of potential variables (9) is not equal to the number of flow variables (0). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Fluid/PressureLosses/SingularPressureLoss.mo:27:3-28:67:writable] Warning: Connector C1 is not balanced: The number of potential variables (9) is not equal to the number of flow variables (0). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Fluid/PressureLosses/SingularPressureLoss.mo:29:3-30:65:writable] Warning: Connector C2 is not balanced: The number of potential variables (9) is not equal to the number of flow variables (0). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Fluid/BoundaryConditions/Sink.mo:39:3-40:67:writable] Warning: Connector C is not balanced: The number of potential variables (9) is not equal to the number of flow variables (0). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Fluid/BoundaryConditions/SourcePQ.mo:74:3-75:65:writable] Warning: Connector C is not balanced: The number of potential variables (9) is not equal to the number of flow variables (0). Notification: Performance of NFTyping.typeComponents: time 0.0004807/2.538, allocations: 128.6 kB / 0.7351 GB, free: 1.742 MB / 0.5919 GB Notification: Performance of NFTyping.typeBindings: time 0.0003865/2.539, allocations: 163.2 kB / 0.7353 GB, free: 1.742 MB / 0.5919 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Properties/WaterSteam/IF97_packages.mo:783:9-783:27:writable] Warning: cv was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Properties/WaterSteam/IF97_packages.mo:850:9-850:27:writable] Warning: cv was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Properties/WaterSteam/IF97_packages.mo:1088:9-1088:27:writable] Warning: cv was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Properties/WaterSteamSimple/prop4_Ph.mo:69:3-69:60:writable] Warning: dh1satp was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Properties/WaterSteamSimple/prop4_Ph.mo:69:3-69:60:writable] Warning: dh2satp was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Properties/WaterSteamSimple/prop4_Ph_der.mo:167:3-170:49:writable] Warning: du1satp_der was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Properties/WaterSteamSimple/prop4_Ph_der.mo:167:3-170:49:writable] Warning: du2satp_der was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermoSysPro 4.0.0-master/Properties/Fluid/derDensity_derP_derh.mo:63:5-63:84:writable] Warning: T was used before it was defined (given a value). Additional such uses may exist for the variable, but some messages were suppressed. Notification: Performance of NFTyping.typeClassSections: time 0.03593/2.575, allocations: 11.93 MB / 0.7469 GB, free: 1.488 MB / 0.5919 GB Notification: Performance of NFFlatten.flatten: time 0.001015/2.576, allocations: 0.5714 MB / 0.7475 GB, free: 1.488 MB / 0.5919 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0004368/2.576, allocations: 302.7 kB / 0.7478 GB, free: 1.465 MB / 0.5919 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0003487/2.577, allocations: 249 kB / 0.748 GB, free: 1.465 MB / 0.5919 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0003188/2.577, allocations: 251.6 kB / 0.7482 GB, free: 1.465 MB / 0.5919 GB Notification: Performance of NFPackage.collectConstants: time 6.986e-05/2.577, allocations: 50.91 kB / 0.7483 GB, free: 1.465 MB / 0.5919 GB Notification: Performance of NFFlatten.collectFunctions: time 0.04715/2.624, allocations: 21.85 MB / 0.7696 GB, free: 44 kB / 0.5919 GB Notification: Performance of NFScalarize.scalarize: time 0.0003051/2.624, allocations: 112.3 kB / 0.7697 GB, free: 28 kB / 0.5919 GB Notification: Performance of NFVerifyModel.verify: time 0.0005855/2.625, allocations: 275.1 kB / 0.77 GB, free: 12 kB / 0.5919 GB Notification: Performance of NFConvertDAE.convert: time 0.03704/2.662, allocations: 10.44 MB / 0.7802 GB, free: 12.15 MB / 0.6075 GB Notification: Performance of FrontEnd - DAE generated: time 9.067e-06/2.662, allocations: 3.75 kB / 0.7802 GB, free: 12.15 MB / 0.6075 GB Notification: Performance of FrontEnd: time 2.094e-06/2.662, allocations: 0 / 0.7802 GB, free: 12.15 MB / 0.6075 GB Notification: Performance of Transformations before backend: time 1.11e-05/2.662, allocations: 0.8438 kB / 0.7802 GB, free: 12.15 MB / 0.6075 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 142 * Number of variables: 142 Notification: Performance of Generate backend data structure: time 0.007335/2.67, allocations: 1.934 MB / 0.7821 GB, free: 10.93 MB / 0.6075 GB Notification: Performance of prepare preOptimizeDAE: time 6.7e-05/2.67, allocations: 7.844 kB / 0.7821 GB, free: 10.93 MB / 0.6075 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0001645/2.67, allocations: 60.16 kB / 0.7822 GB, free: 10.9 MB / 0.6075 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0006082/2.67, allocations: 338.7 kB / 0.7825 GB, free: 10.63 MB / 0.6075 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 6.622e-05/2.671, allocations: 43.56 kB / 0.7825 GB, free: 10.63 MB / 0.6075 GB Notification: Performance of preOpt expandDerOperator (simulation): time 6.994e-05/2.671, allocations: 51.97 kB / 0.7826 GB, free: 10.63 MB / 0.6075 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001057/2.672, allocations: 0.5448 MB / 0.7831 GB, free: 10.43 MB / 0.6075 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.126e-05/2.672, allocations: 0.7812 kB / 0.7831 GB, free: 10.43 MB / 0.6075 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 5.566e-05/2.672, allocations: 28.17 kB / 0.7831 GB, free: 10.43 MB / 0.6075 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.216e-05/2.672, allocations: 14.19 kB / 0.7831 GB, free: 10.43 MB / 0.6075 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0008607/2.673, allocations: 367.6 kB / 0.7835 GB, free: 10.39 MB / 0.6075 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.00452/2.677, allocations: 2.918 MB / 0.7863 GB, free: 7.906 MB / 0.6075 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0005213/2.678, allocations: 153.2 kB / 0.7865 GB, free: 7.871 MB / 0.6075 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002379/2.678, allocations: 90.83 kB / 0.7866 GB, free: 7.855 MB / 0.6075 GB Notification: Performance of preOpt evalFunc (simulation): time 0.3567/3.035, allocations: 183.2 MB / 0.9655 GB, free: 15.51 MB / 0.8106 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.318e-05/3.035, allocations: 41.66 kB / 0.9655 GB, free: 15.46 MB / 0.8106 GB Notification: Performance of pre-optimization done (n=26): time 3.026e-06/3.035, allocations: 1.094 kB / 0.9655 GB, free: 15.46 MB / 0.8106 GB Notification: Performance of matching and sorting (n=26): time 0.001968/3.037, allocations: 0.6404 MB / 0.9661 GB, free: 14.78 MB / 0.8106 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.022e-05/3.037, allocations: 55.41 kB / 0.9662 GB, free: 14.71 MB / 0.8106 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0005326/3.037, allocations: 328.4 kB / 0.9665 GB, free: 14.38 MB / 0.8106 GB Notification: Performance of collectPreVariables (initialization): time 2.13e-05/3.037, allocations: 29.7 kB / 0.9665 GB, free: 14.35 MB / 0.8106 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002017/3.038, allocations: 273.4 kB / 0.9668 GB, free: 14.08 MB / 0.8106 GB Notification: Performance of collectInitialBindings (initialization): time 9.007e-05/3.038, allocations: 90.66 kB / 0.9669 GB, free: 13.99 MB / 0.8106 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001346/3.038, allocations: 73.69 kB / 0.9669 GB, free: 13.91 MB / 0.8106 GB Notification: Performance of setup shared object (initialization): time 0.0001312/3.038, allocations: 344 kB / 0.9673 GB, free: 13.57 MB / 0.8106 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0001866/3.038, allocations: 84.08 kB / 0.9674 GB, free: 13.49 MB / 0.8106 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0002861/3.038, allocations: 217.1 kB / 0.9676 GB, free: 13.23 MB / 0.8106 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0004594/3.039, allocations: 314.1 kB / 0.9679 GB, free: 12.88 MB / 0.8106 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.699e-06/3.039, allocations: 3.188 kB / 0.9679 GB, free: 12.88 MB / 0.8106 GB Notification: Performance of matching and sorting (n=46) (initialization): time 0.0009859/3.04, allocations: 460.2 kB / 0.9683 GB, free: 12.45 MB / 0.8106 GB Notification: Performance of prepare postOptimizeDAE: time 2.346e-05/3.04, allocations: 4 kB / 0.9683 GB, free: 12.45 MB / 0.8106 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.27e-05/3.04, allocations: 4 kB / 0.9683 GB, free: 12.44 MB / 0.8106 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001014/3.041, allocations: 257.8 kB / 0.9686 GB, free: 12.19 MB / 0.8106 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001557/3.041, allocations: 42.27 kB / 0.9686 GB, free: 12.15 MB / 0.8106 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001102/3.042, allocations: 1.258 MB / 0.9698 GB, free: 10.85 MB / 0.8106 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.000308/3.043, allocations: 50.08 kB / 0.9699 GB, free: 10.8 MB / 0.8106 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.062e-05/3.043, allocations: 15.94 kB / 0.9699 GB, free: 10.79 MB / 0.8106 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 18 * Number of states: 0 () * Number of discrete variables: 7 (sourceFlueGasesPQ.fluid1,sourceFlueGasesPQ.C.ftype,airHumidity.fluid,singularPressureLoss.fluid,sinkFlueGases.fluid,singularPressureLoss.C2.diff_on_1,airHumidity.C1.diff_on_2) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (26): * Single equations (assignments): 24 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * 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): 2 systems {(1,3), (4,5)} Notification: Performance of prepare postOptimizeDAE: time 0.0002373/3.043, allocations: 169 kB / 0.97 GB, free: 10.62 MB / 0.8106 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 8.301e-05/3.043, allocations: 31.62 kB / 0.9701 GB, free: 10.59 MB / 0.8106 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0009442/3.044, allocations: 495.6 kB / 0.9706 GB, free: 10.1 MB / 0.8106 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 0.0006475/3.045, allocations: 368.7 kB / 0.9709 GB, free: 9.73 MB / 0.8106 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.034e-05/3.045, allocations: 0 / 0.9709 GB, free: 9.73 MB / 0.8106 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.601e-06/3.045, allocations: 3.094 kB / 0.9709 GB, free: 9.73 MB / 0.8106 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001689/3.046, allocations: 1.01 MB / 0.9719 GB, free: 8.672 MB / 0.8106 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.066e-06/3.046, allocations: 0 / 0.9719 GB, free: 8.672 MB / 0.8106 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 7.179e-05/3.046, allocations: 23.98 kB / 0.9719 GB, free: 8.648 MB / 0.8106 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0007235/3.047, allocations: 231.8 kB / 0.9721 GB, free: 8.422 MB / 0.8106 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.976e-05/3.047, allocations: 8 kB / 0.9721 GB, free: 8.414 MB / 0.8106 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0009709/3.048, allocations: 1.258 MB / 0.9734 GB, free: 7.109 MB / 0.8106 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.446e-06/3.048, allocations: 0 / 0.9734 GB, free: 7.109 MB / 0.8106 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0007856/3.049, allocations: 0.5015 MB / 0.9739 GB, free: 6.594 MB / 0.8106 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001444/3.049, allocations: 108.7 kB / 0.974 GB, free: 6.469 MB / 0.8106 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 5.448e-05/3.049, allocations: 11.94 kB / 0.974 GB, free: 6.457 MB / 0.8106 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001517/3.049, allocations: 4 kB / 0.974 GB, free: 6.453 MB / 0.8106 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 7.123e-05/3.049, allocations: 15.97 kB / 0.974 GB, free: 6.438 MB / 0.8106 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 1.597e-05/3.049, allocations: 12 kB / 0.974 GB, free: 6.426 MB / 0.8106 GB Notification: Performance of sorting global known variables: time 0.0002621/3.05, allocations: 223.1 kB / 0.9742 GB, free: 6.207 MB / 0.8106 GB Notification: Performance of sort global known variables: time 1.51e-07/3.05, allocations: 0 / 0.9742 GB, free: 6.207 MB / 0.8106 GB Notification: Performance of remove unused functions: time 0.005977/3.056, allocations: 1.514 MB / 0.9757 GB, free: 4.691 MB / 0.8106 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 (16): * Single equations (assignments): 14 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * 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): 2 systems {(1,3), (4,5)} Notification: Performance of Backend phase and start with SimCode phase: time 0.01193/3.068, allocations: 2.249 MB / 0.9779 GB, free: 2.707 MB / 0.8106 GB Notification: Performance of simCode: created initialization part: time 0.001526/3.069, allocations: 364.7 kB / 0.9782 GB, free: 2.359 MB / 0.8106 GB Notification: Performance of simCode: created event and clocks part: time 5.841e-06/3.069, allocations: 0 / 0.9782 GB, free: 2.359 MB / 0.8106 GB Notification: Performance of simCode: created simulation system equations: time 0.0006132/3.07, allocations: 185.7 kB / 0.9784 GB, free: 2.188 MB / 0.8106 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.00113/3.071, allocations: 142.3 kB / 0.9786 GB, free: 2.059 MB / 0.8106 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001995/3.073, allocations: 0.7315 MB / 0.9793 GB, free: 1.309 MB / 0.8106 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005669/3.074, allocations: 0.8324 MB / 0.9801 GB, free: 460 kB / 0.8106 GB Notification: Performance of simCode: alias equations: time 0.0002594/3.074, allocations: 51.2 kB / 0.9801 GB, free: 412 kB / 0.8106 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 8.627e-05/3.074, allocations: 38.62 kB / 0.9802 GB, free: 376 kB / 0.8106 GB Notification: Performance of SimCode: time 1.052e-06/3.074, allocations: 0 / 0.9802 GB, free: 376 kB / 0.8106 GB Notification: Performance of Templates: time 0.3381/3.412, allocations: 49.44 MB / 1.028 GB, free: 459.8 MB / 0.8419 GB make -j1 -f ThermoSysPro_ThermoSysPro.Fluid.Examples.SimpleExamples.TestAirHumidity.makefile (rm -f ThermoSysPro_ThermoSysPro.Fluid.Examples.SimpleExamples.TestAirHumidity.pipe ; mkfifo ThermoSysPro_ThermoSysPro.Fluid.Examples.SimpleExamples.TestAirHumidity.pipe ; head -c 1048576 < ThermoSysPro_ThermoSysPro.Fluid.Examples.SimpleExamples.TestAirHumidity.pipe >> ../files/ThermoSysPro_ThermoSysPro.Fluid.Examples.SimpleExamples.TestAirHumidity.sim & ./ThermoSysPro_ThermoSysPro.Fluid.Examples.SimpleExamples.TestAirHumidity -abortSlowSimulation -alarm=480 -lv LOG_STATS > ThermoSysPro_ThermoSysPro.Fluid.Examples.SimpleExamples.TestAirHumidity.pipe 2>&1)