Running: ./testmodel.py --libraries=/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_7.0.0_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer.conf.json loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Buildings 7.0.1/package.mo", uses=false) loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false) loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) Using package ModelicaServices with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Using package Modelica with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo) Using package Complex with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo) Using package Buildings with version 7.0.1 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Buildings 7.0.1/package.mo) Running command: translateModel(Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_7.0.0_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer") translateModel(Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_7.0.0_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer") Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Buildings 7.0.1/package.mo): time 2.494/2.494, allocations: 254.9 MB / 269.9 MB, free: 9.641 MB / 218.7 MB Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001347/0.001347, allocations: 187 kB / 329.5 MB, free: 1.168 MB / 250.7 MB Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 2.483/2.483, allocations: 225.6 MB / 0.6001 GB, free: 2.246 MB / 426.7 MB Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001465/0.001465, allocations: 94.02 kB / 0.7074 GB, free: 7.965 MB / 0.5261 GB Notification: Performance of FrontEnd - loaded program: time 0.0007741/0.0007744, allocations: 11.44 kB / 0.8242 GB, free: 124.3 MB / 0.5886 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2609/0.2617, allocations: 109.1 MB / 0.9308 GB, free: 25.13 MB / 0.5886 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer): time 0.006588/0.2683, allocations: 4.51 MB / 0.9352 GB, free: 20.59 MB / 0.5886 GB Notification: Performance of NFInst.instExpressions: time 0.007436/0.2758, allocations: 3.739 MB / 0.9388 GB, free: 16.84 MB / 0.5886 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0006704/0.2766, allocations: 15.88 kB / 0.9388 GB, free: 16.82 MB / 0.5886 GB Notification: Performance of NFTyping.typeComponents: time 0.0004173/0.277, allocations: 87.31 kB / 0.9389 GB, free: 16.74 MB / 0.5886 GB Notification: Performance of NFTyping.typeBindings: time 0.002286/0.2793, allocations: 0.4978 MB / 0.9394 GB, free: 16.24 MB / 0.5886 GB Notification: Performance of NFTyping.typeClassSections: time 0.00169/0.2811, allocations: 355.1 kB / 0.9398 GB, free: 15.89 MB / 0.5886 GB Notification: Performance of NFFlatten.flatten: time 0.00197/0.2831, allocations: 1.164 MB / 0.9409 GB, free: 14.72 MB / 0.5886 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001778/0.2849, allocations: 0.6526 MB / 0.9415 GB, free: 14.04 MB / 0.5886 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0009126/0.2858, allocations: 346.7 kB / 0.9419 GB, free: 13.7 MB / 0.5886 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001194/0.2871, allocations: 462.4 kB / 0.9423 GB, free: 13.24 MB / 0.5886 GB Notification: Performance of NFPackage.collectConstants: time 0.0002009/0.2873, allocations: 32 kB / 0.9423 GB, free: 13.21 MB / 0.5886 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001646/0.289, allocations: 483.3 kB / 0.9428 GB, free: 12.74 MB / 0.5886 GB Notification: Performance of NFScalarize.scalarize: time 0.0005338/0.2895, allocations: 271.3 kB / 0.943 GB, free: 12.47 MB / 0.5886 GB Notification: Performance of NFVerifyModel.verify: time 0.0002676/0.2898, allocations: 145.3 kB / 0.9432 GB, free: 12.32 MB / 0.5886 GB Notification: Performance of NFConvertDAE.convert: time 0.002061/0.2919, allocations: 0.947 MB / 0.9441 GB, free: 11.38 MB / 0.5886 GB Notification: Performance of FrontEnd - DAE generated: time 7.794e-06/0.292, allocations: 0 / 0.9441 GB, free: 11.38 MB / 0.5886 GB Notification: Performance of FrontEnd: time 2.745e-06/0.292, allocations: 0 / 0.9441 GB, free: 11.38 MB / 0.5886 GB Notification: Performance of Transformations before backend: time 2.11e-05/0.292, allocations: 4 kB / 0.9441 GB, free: 11.37 MB / 0.5886 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 181 * Number of variables: 181 Notification: Performance of Generate backend data structure: time 0.002735/0.2947, allocations: 0.947 MB / 0.945 GB, free: 10.38 MB / 0.5886 GB Notification: Performance of prepare preOptimizeDAE: time 4.388e-05/0.2948, allocations: 8.031 kB / 0.945 GB, free: 10.37 MB / 0.5886 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01665/0.3115, allocations: 1.615 MB / 0.9466 GB, free: 8.75 MB / 0.5886 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001406/0.3129, allocations: 0.5468 MB / 0.9472 GB, free: 8.168 MB / 0.5886 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 5.332e-05/0.313, allocations: 49.67 kB / 0.9472 GB, free: 8.117 MB / 0.5886 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002822/0.3133, allocations: 60.36 kB / 0.9473 GB, free: 8.059 MB / 0.5886 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.00822/0.3215, allocations: 1.833 MB / 0.9491 GB, free: 6.148 MB / 0.5886 GB Notification: Performance of preOpt findStateOrder (simulation): time 4.253e-05/0.3217, allocations: 3.938 kB / 0.9491 GB, free: 6.145 MB / 0.5886 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001872/0.3218, allocations: 27.98 kB / 0.9491 GB, free: 6.117 MB / 0.5886 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004015/0.3223, allocations: 105.5 kB / 0.9492 GB, free: 6.008 MB / 0.5886 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01386/0.3361, allocations: 2.48 MB / 0.9516 GB, free: 3.527 MB / 0.5886 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 0.01447/0.3507, allocations: 6.361 MB / 0.9578 GB, free: 12.77 MB / 0.6042 GB Notification: Performance of preOpt comSubExp (simulation): time 0.006681/0.3574, allocations: 1.355 MB / 0.9591 GB, free: 11.36 MB / 0.6042 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.005024/0.3624, allocations: 0.8987 MB / 0.96 GB, free: 10.45 MB / 0.6042 GB Notification: Performance of preOpt evalFunc (simulation): time 0.004541/0.367, allocations: 2.146 MB / 0.9621 GB, free: 8.207 MB / 0.6042 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.031e-05/0.3671, allocations: 54.56 kB / 0.9622 GB, free: 8.145 MB / 0.6042 GB Notification: Performance of pre-optimization done (n=69): time 4.038e-06/0.3672, allocations: 0 / 0.9622 GB, free: 8.145 MB / 0.6042 GB Notification: Performance of matching and sorting (n=93): time 0.04334/0.4105, allocations: 6.633 MB / 0.9686 GB, free: 1.488 MB / 0.6042 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001259/0.4107, allocations: 199.9 kB / 0.9688 GB, free: 1.25 MB / 0.6042 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.000995/0.4117, allocations: 0.5172 MB / 0.9693 GB, free: 0.7227 MB / 0.6042 GB Notification: Performance of collectPreVariables (initialization): time 0.0002653/0.412, allocations: 41.7 kB / 0.9694 GB, free: 0.6758 MB / 0.6042 GB Notification: Performance of collectInitialEqns (initialization): time 0.0003511/0.4123, allocations: 390.7 kB / 0.9698 GB, free: 292 kB / 0.6042 GB Notification: Performance of collectInitialBindings (initialization): time 0.0004982/0.4128, allocations: 323.4 kB / 0.9701 GB, free: 15.96 MB / 0.6198 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001707/0.413, allocations: 28 kB / 0.9701 GB, free: 15.94 MB / 0.6198 GB Notification: Performance of setup shared object (initialization): time 0.0002198/0.4133, allocations: 374.8 kB / 0.9704 GB, free: 15.56 MB / 0.6198 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.005573/0.4189, allocations: 0.9938 MB / 0.9714 GB, free: 14.57 MB / 0.6198 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.005909/0.4248, allocations: 1.291 MB / 0.9727 GB, free: 13.16 MB / 0.6198 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.005778/0.4307, allocations: 1.087 MB / 0.9737 GB, free: 12.07 MB / 0.6198 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.543e-05/0.4307, allocations: 0 / 0.9737 GB, free: 12.07 MB / 0.6198 GB Notification: Performance of matching and sorting (n=152) (initialization): time 0.01914/0.4499, allocations: 3.329 MB / 0.977 GB, free: 8.723 MB / 0.6198 GB Notification: Performance of prepare postOptimizeDAE: time 0.0003049/0.4502, allocations: 335.7 kB / 0.9773 GB, free: 8.277 MB / 0.6198 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.317e-05/0.4503, allocations: 8 kB / 0.9773 GB, free: 8.27 MB / 0.6198 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.008443/0.4587, allocations: 1.096 MB / 0.9784 GB, free: 7.16 MB / 0.6198 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004252/0.463, allocations: 471.4 kB / 0.9788 GB, free: 6.699 MB / 0.6198 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.02113/0.4842, allocations: 9.2 MB / 0.9878 GB, free: 12.96 MB / 0.6355 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004008/0.4883, allocations: 311.5 kB / 0.9881 GB, free: 12.65 MB / 0.6355 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0002495/0.4886, allocations: 55.97 kB / 0.9882 GB, free: 12.6 MB / 0.6355 GB Notification: Performance of prepare postOptimizeDAE: time 1.673e-05/0.4886, allocations: 7.906 kB / 0.9882 GB, free: 12.59 MB / 0.6355 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.01748/0.5061, allocations: 3.016 MB / 0.9911 GB, free: 9.562 MB / 0.6355 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.316e-05/0.5062, allocations: 8 kB / 0.9911 GB, free: 9.555 MB / 0.6355 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.005816/0.512, allocations: 0.7636 MB / 0.9919 GB, free: 8.777 MB / 0.6355 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004442/0.5165, allocations: 491.1 kB / 0.9923 GB, free: 8.297 MB / 0.6355 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.016/0.5326, allocations: 6.923 MB / 0.9991 GB, free: 0.9688 MB / 0.6355 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003874/0.5365, allocations: 295.6 kB / 0.9994 GB, free: 0.6797 MB / 0.6355 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003232/0.5369, allocations: 59.97 kB / 0.9994 GB, free: 0.6211 MB / 0.6355 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 37 * 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 (124): * Single equations (assignments): 120 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 4 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 3 {(2,100.0%) 6,(2,100.0%) 6,(2,100.0%) 6} * Non-linear torn systems: 1 {2 6} Notification: Performance of prepare postOptimizeDAE: time 0.0008954/0.5378, allocations: 372.9 kB / 0.9998 GB, free: 252 kB / 0.6355 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.000398/0.5382, allocations: 67.16 kB / 0.9999 GB, free: 184 kB / 0.6355 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01872/0.557, allocations: 3.094 MB / 1.003 GB, free: 13.06 MB / 0.6511 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.941e-05/0.5571, allocations: 15.98 kB / 1.003 GB, free: 13.05 MB / 0.6511 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.651e-05/0.5571, allocations: 4 kB / 1.003 GB, free: 13.04 MB / 0.6511 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.668e-05/0.5571, allocations: 7.984 kB / 1.003 GB, free: 13.04 MB / 0.6511 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.02315/0.5803, allocations: 5.023 MB / 1.008 GB, free: 7.867 MB / 0.6511 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.326e-05/0.5804, allocations: 4 kB / 1.008 GB, free: 7.863 MB / 0.6511 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003414/0.5838, allocations: 359.7 kB / 1.008 GB, free: 7.512 MB / 0.6511 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.007521/0.5914, allocations: 0.9981 MB / 1.009 GB, free: 6.5 MB / 0.6511 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0002662/0.5917, allocations: 35.97 kB / 1.009 GB, free: 6.465 MB / 0.6511 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.01695/0.6086, allocations: 8.653 MB / 1.018 GB, free: 13.27 MB / 0.6667 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.118e-05/0.6087, allocations: 16 kB / 1.018 GB, free: 13.26 MB / 0.6667 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01723/0.6259, allocations: 3.262 MB / 1.021 GB, free: 9.906 MB / 0.6667 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0009797/0.627, allocations: 304 kB / 1.021 GB, free: 9.59 MB / 0.6667 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002488/0.6272, allocations: 27.94 kB / 1.021 GB, free: 9.562 MB / 0.6667 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003524/0.6308, allocations: 295.5 kB / 1.021 GB, free: 9.273 MB / 0.6667 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0003583/0.6312, allocations: 91.7 kB / 1.022 GB, free: 9.184 MB / 0.6667 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001507/0.6313, allocations: 39.97 kB / 1.022 GB, free: 9.145 MB / 0.6667 GB Notification: Performance of sorting global known variables: time 0.0006794/0.632, allocations: 366.8 kB / 1.022 GB, free: 8.789 MB / 0.6667 GB Notification: Performance of sort global known variables: time 4.21e-07/0.632, allocations: 0 / 1.022 GB, free: 8.789 MB / 0.6667 GB Notification: Performance of remove unused functions: time 0.002668/0.6347, allocations: 0.5078 MB / 1.022 GB, free: 8.281 MB / 0.6667 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 23 * 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 (66): * Single equations (assignments): 62 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 4 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 3 {(2,100.0%) 6,(2,100.0%) 6,(2,100.0%) 6} * Non-linear torn systems: 1 {2 6} Notification: Performance of Backend phase and start with SimCode phase: time 0.0003512/0.6351, allocations: 143 kB / 1.023 GB, free: 8.129 MB / 0.6667 GB Notification: Performance of simCode: created initialization part: time 0.02426/0.6594, allocations: 4.955 MB / 1.027 GB, free: 3.082 MB / 0.6667 GB Notification: Performance of simCode: created event and clocks part: time 1.088e-05/0.6594, allocations: 0 / 1.027 GB, free: 3.082 MB / 0.6667 GB Notification: Performance of simCode: created simulation system equations: time 0.007538/0.667, allocations: 1.749 MB / 1.029 GB, free: 1.281 MB / 0.6667 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.00164/0.6687, allocations: 112.8 kB / 1.029 GB, free: 1.176 MB / 0.6667 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.6397/1.308, allocations: 3.511 MB / 1.033 GB, free: 95.36 MB / 0.6667 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001028/1.309, allocations: 1.04 MB / 1.034 GB, free: 94.65 MB / 0.6667 GB Notification: Performance of simCode: alias equations: time 0.003763/1.313, allocations: 495.3 kB / 1.034 GB, free: 94.61 MB / 0.6667 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0007101/1.314, allocations: 79.53 kB / 1.034 GB, free: 94.61 MB / 0.6667 GB Notification: Performance of SimCode: time 1.413e-06/1.314, allocations: 0 / 1.034 GB, free: 94.61 MB / 0.6667 GB Notification: Performance of Templates: time 0.05405/1.368, allocations: 19.71 MB / 1.053 GB, free: 91.09 MB / 0.6667 GB make -j1 -f Buildings_7.0.0_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer.makefile (rm -f Buildings_7.0.0_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer.pipe ; mkfifo Buildings_7.0.0_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer.pipe ; head -c 1048576 < Buildings_7.0.0_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer.pipe >> ../files/Buildings_7.0.0_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer.sim & ./Buildings_7.0.0_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_7.0.0_Buildings.Electrical.AC.OnePhase.Conversion.Examples.ACACTransformer.pipe 2>&1)