Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr IDEAS_IDEAS.Fluid.FixedResistances.Validation.PressureDropsExplicit.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.FixedResistances.Validation.PressureDropsExplicit,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IDEAS_IDEAS.Fluid.FixedResistances.Validation.PressureDropsExplicit") translateModel(IDEAS.Fluid.FixedResistances.Validation.PressureDropsExplicit,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IDEAS_IDEAS.Fluid.FixedResistances.Validation.PressureDropsExplicit") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001107/0.001107, allocations: 183.3 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 0.703/0.703, allocations: 132.2 MB / 148.9 MB, free: 12.15 MB / 122.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.715/1.715, allocations: 222.9 MB / 403.4 MB, free: 7.043 MB / 314.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0009583/0.0009583, allocations: 93.98 kB / 484.3 MB, free: 8.73 MB / 394.7 MB Notification: Performance of FrontEnd - loaded program: time 0.001058/0.001058, allocations: 48.16 kB / 0.5618 GB, free: 71.07 MB / 426.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1475/0.1485, allocations: 80.2 MB / 0.6402 GB, free: 6.797 MB / 442.7 MB Notification: Performance of NFInst.instantiate(IDEAS.Fluid.FixedResistances.Validation.PressureDropsExplicit): time 0.5062/0.6548, allocations: 239.7 MB / 0.8742 GB, free: 3.289 MB / 0.6042 GB Notification: Performance of NFInst.instExpressions: time 0.01636/0.6712, allocations: 13.57 MB / 0.8875 GB, free: 5.688 MB / 0.6198 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002373/0.6737, allocations: 59.56 kB / 0.8875 GB, free: 5.629 MB / 0.6198 GB Notification: Performance of NFTyping.typeComponents: time 0.00279/0.6765, allocations: 0.8275 MB / 0.8883 GB, free: 4.797 MB / 0.6198 GB Notification: Performance of NFTyping.typeBindings: time 0.004825/0.6814, allocations: 1.69 MB / 0.89 GB, free: 3.102 MB / 0.6198 GB Notification: Performance of NFTyping.typeClassSections: time 0.004093/0.6855, allocations: 1.119 MB / 0.8911 GB, free: 2 MB / 0.6198 GB Notification: Performance of NFFlatten.flatten: time 0.006321/0.6918, allocations: 4.655 MB / 0.8956 GB, free: 13.34 MB / 0.6355 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001811/0.6937, allocations: 0.9039 MB / 0.8965 GB, free: 12.4 MB / 0.6355 GB Notification: Performance of NFEvalConstants.evaluate: time 0.009061/0.7028, allocations: 3.861 MB / 0.9003 GB, free: 8.527 MB / 0.6355 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001553/0.7044, allocations: 0.9684 MB / 0.9012 GB, free: 7.555 MB / 0.6355 GB Notification: Performance of NFPackage.collectConstants: time 0.0001726/0.7045, allocations: 56 kB / 0.9013 GB, free: 7.5 MB / 0.6355 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002193/0.7067, allocations: 1.235 MB / 0.9025 GB, free: 6.262 MB / 0.6355 GB Notification: Performance of NFScalarize.scalarize: time 0.000411/0.7072, allocations: 430.5 kB / 0.9029 GB, free: 5.84 MB / 0.6355 GB Notification: Performance of NFVerifyModel.verify: time 0.0008704/0.708, allocations: 0.6527 MB / 0.9035 GB, free: 5.184 MB / 0.6355 GB Notification: Performance of NFConvertDAE.convert: time 0.002275/0.7103, allocations: 1.689 MB / 0.9052 GB, free: 3.488 MB / 0.6355 GB Notification: Performance of FrontEnd - DAE generated: time 4.078e-06/0.7103, allocations: 0 / 0.9052 GB, free: 3.488 MB / 0.6355 GB Notification: Performance of FrontEnd: time 7.11e-07/0.7104, allocations: 0 / 0.9052 GB, free: 3.488 MB / 0.6355 GB Notification: Performance of Transformations before backend: time 1.827e-05/0.7104, allocations: 4 kB / 0.9052 GB, free: 3.484 MB / 0.6355 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 193 * Number of variables: 193 Notification: Performance of Generate backend data structure: time 0.002221/0.7126, allocations: 1.631 MB / 0.9068 GB, free: 1.801 MB / 0.6355 GB Notification: Performance of prepare preOptimizeDAE: time 3.952e-05/0.7127, allocations: 16.02 kB / 0.9068 GB, free: 1.785 MB / 0.6355 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0006039/0.7133, allocations: 203 kB / 0.907 GB, free: 1.586 MB / 0.6355 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001211/0.7145, allocations: 0.8425 MB / 0.9078 GB, free: 0.6875 MB / 0.6355 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001195/0.7146, allocations: 121.4 kB / 0.9079 GB, free: 0.5547 MB / 0.6355 GB Notification: Performance of preOpt expandDerOperator (simulation): time 9.005e-05/0.7147, allocations: 84 kB / 0.908 GB, free: 484 kB / 0.6355 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001262/0.716, allocations: 0.9376 MB / 0.9089 GB, free: 15.45 MB / 0.6511 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.196e-05/0.716, allocations: 7.938 kB / 0.9089 GB, free: 15.44 MB / 0.6511 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 6.454e-05/0.7161, allocations: 35.98 kB / 0.909 GB, free: 15.4 MB / 0.6511 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.683e-05/0.7161, allocations: 20 kB / 0.909 GB, free: 15.38 MB / 0.6511 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0008517/0.717, allocations: 0.515 MB / 0.9095 GB, free: 14.87 MB / 0.6511 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 0.004379/0.7214, allocations: 4.908 MB / 0.9143 GB, free: 9.648 MB / 0.6511 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0005707/0.722, allocations: 430 kB / 0.9147 GB, free: 9.102 MB / 0.6511 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0003976/0.7224, allocations: 283.8 kB / 0.915 GB, free: 8.781 MB / 0.6511 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002007/0.7226, allocations: 109.1 kB / 0.9151 GB, free: 8.656 MB / 0.6511 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.059e-05/0.7226, allocations: 58.38 kB / 0.9151 GB, free: 8.59 MB / 0.6511 GB Notification: Performance of pre-optimization done (n=35): time 2.425e-06/0.7226, allocations: 4 kB / 0.9151 GB, free: 8.586 MB / 0.6511 GB Notification: Performance of matching and sorting (n=35): time 0.002412/0.7251, allocations: 0.8742 MB / 0.916 GB, free: 7.664 MB / 0.6511 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.000143/0.7252, allocations: 397.5 kB / 0.9163 GB, free: 7.184 MB / 0.6511 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001267/0.7265, allocations: 1.239 MB / 0.9176 GB, free: 5.934 MB / 0.6511 GB Notification: Performance of collectPreVariables (initialization): time 4.285e-05/0.7265, allocations: 37.7 kB / 0.9176 GB, free: 5.891 MB / 0.6511 GB Notification: Performance of collectInitialEqns (initialization): time 0.0003701/0.7269, allocations: 0.5341 MB / 0.9181 GB, free: 5.352 MB / 0.6511 GB Notification: Performance of collectInitialBindings (initialization): time 8.685e-05/0.727, allocations: 122.2 kB / 0.9182 GB, free: 5.23 MB / 0.6511 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001223/0.7271, allocations: 89.58 kB / 0.9183 GB, free: 5.137 MB / 0.6511 GB Notification: Performance of setup shared object (initialization): time 8.8e-05/0.7272, allocations: 318 kB / 0.9186 GB, free: 4.82 MB / 0.6511 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.000215/0.7275, allocations: 104.8 kB / 0.9187 GB, free: 4.715 MB / 0.6511 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0003883/0.7279, allocations: 354.6 kB / 0.9191 GB, free: 4.273 MB / 0.6511 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0005103/0.7284, allocations: 348.6 kB / 0.9194 GB, free: 3.887 MB / 0.6511 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.886e-06/0.7284, allocations: 0 / 0.9194 GB, free: 3.887 MB / 0.6511 GB Notification: Performance of matching and sorting (n=37) (initialization): time 0.001178/0.7296, allocations: 0.5678 MB / 0.9199 GB, free: 3.305 MB / 0.6511 GB Notification: Performance of prepare postOptimizeDAE: time 2.132e-05/0.7296, allocations: 13.19 kB / 0.92 GB, free: 3.293 MB / 0.6511 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.907e-06/0.7296, allocations: 4 kB / 0.92 GB, free: 3.289 MB / 0.6511 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0006035/0.7302, allocations: 113.7 kB / 0.9201 GB, free: 3.172 MB / 0.6511 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004725/0.7307, allocations: 91.86 kB / 0.9202 GB, free: 3.082 MB / 0.6511 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001204/0.7319, allocations: 2.316 MB / 0.9224 GB, free: 0.668 MB / 0.6511 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0007362/0.7327, allocations: 119.3 kB / 0.9225 GB, free: 0.5508 MB / 0.6511 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.402e-05/0.7327, allocations: 20 kB / 0.9226 GB, free: 0.5312 MB / 0.6511 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0004852/0.7332, allocations: 319.9 kB / 0.9229 GB, free: 220 kB / 0.6511 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0004409/0.7337, allocations: 338.4 kB / 0.9232 GB, free: 15.79 MB / 0.6667 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0005523/0.7342, allocations: 332.5 kB / 0.9235 GB, free: 15.42 MB / 0.6667 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 4.749e-06/0.7343, allocations: 4 kB / 0.9235 GB, free: 15.41 MB / 0.6667 GB Notification: Performance of matching and sorting (n=37) (initialization_lambda0): time 0.001008/0.7353, allocations: 0.4897 MB / 0.924 GB, free: 14.91 MB / 0.6667 GB Notification: Performance of prepare postOptimizeDAE: time 1.21e-05/0.7353, allocations: 8 kB / 0.924 GB, free: 14.9 MB / 0.6667 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.492e-06/0.7353, allocations: 4 kB / 0.924 GB, free: 14.9 MB / 0.6667 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0002661/0.7356, allocations: 82.03 kB / 0.9241 GB, free: 14.81 MB / 0.6667 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000282/0.7359, allocations: 63.89 kB / 0.9241 GB, free: 14.75 MB / 0.6667 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002359/0.7383, allocations: 2.923 MB / 0.927 GB, free: 11.56 MB / 0.6667 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0006848/0.7389, allocations: 71.77 kB / 0.9271 GB, free: 11.49 MB / 0.6667 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.214e-05/0.739, allocations: 24 kB / 0.9271 GB, free: 11.47 MB / 0.6667 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 15 * 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 (31): * Single equations (assignments): 27 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 2 * Torn equation systems: 2 * 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): 2 systems {1, 1} * Without analytic Jacobian (size): 0 systems 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), (1,3)} Notification: Performance of prepare postOptimizeDAE: time 0.000181/0.7392, allocations: 217.9 kB / 0.9273 GB, free: 11.25 MB / 0.6667 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0003652/0.7396, allocations: 142.3 kB / 0.9274 GB, free: 11.11 MB / 0.6667 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0008073/0.7404, allocations: 436.7 kB / 0.9278 GB, free: 10.66 MB / 0.6667 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.606e-06/0.7404, allocations: 8 kB / 0.9278 GB, free: 10.65 MB / 0.6667 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.368e-06/0.7404, allocations: 4 kB / 0.9278 GB, free: 10.64 MB / 0.6667 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.961e-06/0.7404, allocations: 4 kB / 0.9279 GB, free: 10.64 MB / 0.6667 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002922/0.7433, allocations: 2.549 MB / 0.9303 GB, free: 7.953 MB / 0.6667 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.274e-06/0.7434, allocations: 7.938 kB / 0.9303 GB, free: 7.945 MB / 0.6667 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002453/0.7436, allocations: 67.89 kB / 0.9304 GB, free: 7.879 MB / 0.6667 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0001939/0.7438, allocations: 85.64 kB / 0.9305 GB, free: 7.789 MB / 0.6667 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.125e-05/0.7438, allocations: 15.94 kB / 0.9305 GB, free: 7.773 MB / 0.6667 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001067/0.7449, allocations: 2.308 MB / 0.9328 GB, free: 5.367 MB / 0.6667 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.48e-06/0.7449, allocations: 7.938 kB / 0.9328 GB, free: 5.359 MB / 0.6667 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001542/0.7465, allocations: 1.708 MB / 0.9344 GB, free: 3.52 MB / 0.6667 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0003843/0.7469, allocations: 251.4 kB / 0.9347 GB, free: 3.254 MB / 0.6667 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001178/0.747, allocations: 19.92 kB / 0.9347 GB, free: 3.234 MB / 0.6667 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0008095/0.7478, allocations: 59.78 kB / 0.9348 GB, free: 3.176 MB / 0.6667 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 7.387e-05/0.7479, allocations: 39.84 kB / 0.9348 GB, free: 3.137 MB / 0.6667 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 3.3e-05/0.7479, allocations: 23.98 kB / 0.9348 GB, free: 3.113 MB / 0.6667 GB Notification: Performance of sorting global known variables: time 0.001002/0.749, allocations: 0.8605 MB / 0.9357 GB, free: 2.254 MB / 0.6667 GB Notification: Performance of sort global known variables: time 1.6e-07/0.749, allocations: 0 / 0.9357 GB, free: 2.254 MB / 0.6667 GB Notification: Performance of remove unused functions: time 0.001607/0.7506, allocations: 451.5 kB / 0.9361 GB, free: 1.812 MB / 0.6667 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 22 * 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 (27): * Single equations (assignments): 23 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 2 * Torn equation systems: 2 * 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): 2 systems {1, 1} * Without analytic Jacobian (size): 0 systems 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), (1,3)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0005537/0.7511, allocations: 243 kB / 0.9363 GB, free: 1.574 MB / 0.6667 GB Notification: Performance of simCode: created initialization part: time 0.001697/0.7528, allocations: 0.7321 MB / 0.937 GB, free: 0.8164 MB / 0.6667 GB Notification: Performance of simCode: created event and clocks part: time 5.11e-06/0.7529, allocations: 0 / 0.937 GB, free: 0.8164 MB / 0.6667 GB Notification: Performance of simCode: created simulation system equations: time 0.0004686/0.7533, allocations: 201.2 kB / 0.9372 GB, free: 0.6211 MB / 0.6667 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003635/0.757, allocations: 0.7422 MB / 0.938 GB, free: 15.88 MB / 0.6823 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.002542/0.7595, allocations: 2.422 MB / 0.9403 GB, free: 13.36 MB / 0.6823 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005997/0.7602, allocations: 1.149 MB / 0.9414 GB, free: 12.18 MB / 0.6823 GB Notification: Performance of simCode: alias equations: time 0.0008287/0.761, allocations: 286.6 kB / 0.9417 GB, free: 11.89 MB / 0.6823 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001303/0.7611, allocations: 75.44 kB / 0.9418 GB, free: 11.82 MB / 0.6823 GB Notification: Performance of SimCode: time 5.31e-07/0.7611, allocations: 0 / 0.9418 GB, free: 11.82 MB / 0.6823 GB Notification: Performance of Templates: time 0.3271/1.088, allocations: 24.11 MB / 0.9653 GB, free: 256.2 MB / 0.6823 GB make -j1 -f IDEAS_IDEAS.Fluid.FixedResistances.Validation.PressureDropsExplicit.makefile (rm -f IDEAS_IDEAS.Fluid.FixedResistances.Validation.PressureDropsExplicit.pipe ; mkfifo IDEAS_IDEAS.Fluid.FixedResistances.Validation.PressureDropsExplicit.pipe ; head -c 1048576 < IDEAS_IDEAS.Fluid.FixedResistances.Validation.PressureDropsExplicit.pipe >> ../files/IDEAS_IDEAS.Fluid.FixedResistances.Validation.PressureDropsExplicit.sim & ./IDEAS_IDEAS.Fluid.FixedResistances.Validation.PressureDropsExplicit -abortSlowSimulation -alarm=480 -lv LOG_STATS > IDEAS_IDEAS.Fluid.FixedResistances.Validation.PressureDropsExplicit.pipe 2>&1)