Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerFull.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 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo", uses=false) Using package Buildings with version 8.1.4 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo) Using package Modelica with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+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(Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerFull,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerFull") translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerFull,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerFull") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.00155/0.00155, allocations: 105.4 kB / 15.7 MB, free: 24 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001726/0.001726, allocations: 197.4 kB / 16.64 MB, free: 6.453 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.476/1.476, allocations: 205.1 MB / 222.5 MB, free: 4.57 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.845/1.845, allocations: 292.3 MB / 0.549 GB, free: 12.77 MB / 462.1 MB Notification: Modelica requested package Complex of version 3.2.3. Complex 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Modelica requested package ModelicaServices of version 3.2.3. ModelicaServices 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.001387/0.001387, allocations: 69.14 kB / 0.6723 GB, free: 26.14 MB / 0.5294 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2382/0.2396, allocations: 114.5 MB / 0.7841 GB, free: 12.72 MB / 0.6075 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerFull): time 0.02315/0.2628, allocations: 17.42 MB / 0.8012 GB, free: 11.24 MB / 0.6231 GB Notification: Performance of NFInst.instExpressions: time 0.01156/0.2744, allocations: 6.229 MB / 0.8072 GB, free: 4.988 MB / 0.6231 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001912/0.2764, allocations: 51.88 kB / 0.8073 GB, free: 4.938 MB / 0.6231 GB Notification: Performance of NFTyping.typeComponents: time 0.00438/0.2809, allocations: 1.563 MB / 0.8088 GB, free: 3.371 MB / 0.6231 GB Notification: Performance of NFTyping.typeBindings: time 0.003217/0.2841, allocations: 1.077 MB / 0.8099 GB, free: 2.289 MB / 0.6231 GB Notification: Performance of NFTyping.typeClassSections: time 0.003412/0.2875, allocations: 1.141 MB / 0.811 GB, free: 1.148 MB / 0.6231 GB Notification: Performance of NFFlatten.flatten: time 0.005384/0.2929, allocations: 4.413 MB / 0.8153 GB, free: 12.72 MB / 0.6387 GB Notification: Performance of NFFlatten.resolveConnections: time 0.007812/0.3007, allocations: 5.707 MB / 0.8209 GB, free: 6.922 MB / 0.6387 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003212/0.304, allocations: 1.94 MB / 0.8228 GB, free: 4.977 MB / 0.6387 GB Notification: Performance of NFSimplifyModel.simplify: time 0.003985/0.308, allocations: 2.306 MB / 0.825 GB, free: 2.664 MB / 0.6387 GB Notification: Performance of NFPackage.collectConstants: time 0.001383/0.3094, allocations: 452 kB / 0.8254 GB, free: 2.223 MB / 0.6387 GB Notification: Performance of NFFlatten.collectFunctions: time 0.003177/0.3126, allocations: 1.147 MB / 0.8266 GB, free: 1.074 MB / 0.6387 GB Notification: Performance of NFScalarize.scalarize: time 0.003126/0.3157, allocations: 1.782 MB / 0.8283 GB, free: 15.29 MB / 0.6544 GB Notification: Performance of NFVerifyModel.verify: time 0.004966/0.3207, allocations: 1.778 MB / 0.83 GB, free: 13.5 MB / 0.6544 GB Notification: Performance of NFConvertDAE.convert: time 0.009108/0.3298, allocations: 6.592 MB / 0.8365 GB, free: 6.895 MB / 0.6544 GB Notification: Performance of FrontEnd - DAE generated: time 5.69e-06/0.3299, allocations: 0 / 0.8365 GB, free: 6.895 MB / 0.6544 GB Notification: Performance of FrontEnd: time 1.733e-06/0.3299, allocations: 0 / 0.8365 GB, free: 6.895 MB / 0.6544 GB Notification: Performance of Transformations before backend: time 0.0001102/0.33, allocations: 0 / 0.8365 GB, free: 6.895 MB / 0.6544 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 792 * Number of variables: 792 Notification: Performance of Generate backend data structure: time 0.007456/0.3375, allocations: 3.091 MB / 0.8395 GB, free: 3.742 MB / 0.6544 GB Notification: Performance of prepare preOptimizeDAE: time 6.306e-05/0.3375, allocations: 12.03 kB / 0.8395 GB, free: 3.73 MB / 0.6544 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01181/0.3494, allocations: 2.178 MB / 0.8416 GB, free: 1.547 MB / 0.6544 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.003603/0.353, allocations: 1.739 MB / 0.8433 GB, free: 15.76 MB / 0.67 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001583/0.3532, allocations: 218.2 kB / 0.8435 GB, free: 15.55 MB / 0.67 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0005391/0.3537, allocations: 288.3 kB / 0.8438 GB, free: 15.27 MB / 0.67 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01204/0.3657, allocations: 5.907 MB / 0.8496 GB, free: 9.289 MB / 0.67 GB Notification: Performance of preOpt findStateOrder (simulation): time 5.542e-05/0.3658, allocations: 3.938 kB / 0.8496 GB, free: 9.285 MB / 0.67 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0003497/0.3662, allocations: 124 kB / 0.8497 GB, free: 9.164 MB / 0.67 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004475/0.3666, allocations: 258 kB / 0.8499 GB, free: 8.91 MB / 0.67 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01351/0.3802, allocations: 6.101 MB / 0.8559 GB, free: 2.797 MB / 0.67 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.02792/0.4081, allocations: 22.32 MB / 0.8777 GB, free: 10.51 MB / 0.7012 GB Notification: Performance of preOpt comSubExp (simulation): time 0.00574/0.4139, allocations: 2.537 MB / 0.8802 GB, free: 7.91 MB / 0.7012 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.004471/0.4184, allocations: 1.709 MB / 0.8818 GB, free: 6.199 MB / 0.7012 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0001793/0.4186, allocations: 106.1 kB / 0.882 GB, free: 6.078 MB / 0.7012 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.121e-05/0.4186, allocations: 51.55 kB / 0.882 GB, free: 6.02 MB / 0.7012 GB Notification: Performance of pre-optimization done (n=122): time 4.469e-06/0.4186, allocations: 0 / 0.882 GB, free: 6.02 MB / 0.7012 GB Notification: Performance of matching and sorting (n=173): time 0.05185/0.4705, allocations: 14.65 MB / 0.8963 GB, free: 7.293 MB / 0.7169 GB Notification: Performance of inlineWhenForInitialization (initialization): time 6.912e-05/0.4706, allocations: 69.41 kB / 0.8964 GB, free: 7.211 MB / 0.7169 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001685/0.4723, allocations: 1.155 MB / 0.8975 GB, free: 6.031 MB / 0.7169 GB Notification: Performance of collectPreVariables (initialization): time 0.0002237/0.4725, allocations: 49.7 kB / 0.8975 GB, free: 5.977 MB / 0.7169 GB Notification: Performance of collectInitialEqns (initialization): time 0.0009066/0.4735, allocations: 1.274 MB / 0.8988 GB, free: 4.684 MB / 0.7169 GB Notification: Performance of collectInitialBindings (initialization): time 0.0006978/0.4742, allocations: 0.5931 MB / 0.8994 GB, free: 4.082 MB / 0.7169 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0008754/0.475, allocations: 488.2 kB / 0.8998 GB, free: 3.598 MB / 0.7169 GB Notification: Performance of setup shared object (initialization): time 0.0001767/0.4752, allocations: 349.9 kB / 0.9002 GB, free: 3.25 MB / 0.7169 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.004992/0.4802, allocations: 2.033 MB / 0.9022 GB, free: 1.207 MB / 0.7169 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.005511/0.4858, allocations: 2.749 MB / 0.9048 GB, free: 14.13 MB / 0.7325 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01026/0.496, allocations: 4.823 MB / 0.9095 GB, free: 8.996 MB / 0.7325 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.767e-05/0.4961, allocations: 8 kB / 0.9096 GB, free: 8.988 MB / 0.7325 GB Notification: Performance of matching and sorting (n=301) (initialization): time 0.01517/0.5113, allocations: 6.254 MB / 0.9157 GB, free: 2.703 MB / 0.7325 GB Notification: Performance of prepare postOptimizeDAE: time 3.97e-05/0.5113, allocations: 16 kB / 0.9157 GB, free: 2.688 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.451e-05/0.5114, allocations: 24 kB / 0.9157 GB, free: 2.664 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.004956/0.5164, allocations: 1.527 MB / 0.9172 GB, free: 1.117 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003477/0.5199, allocations: 0.7604 MB / 0.9179 GB, free: 364 kB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.5176/1.038, allocations: 18.89 MB / 0.9364 GB, free: 115.1 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004724/1.042, allocations: 487.6 kB / 0.9369 GB, free: 115 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0007442/1.043, allocations: 120.7 kB / 0.937 GB, free: 115 MB / 0.7325 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.009221/1.052, allocations: 3.139 MB / 0.94 GB, free: 113.9 MB / 0.7325 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.007644/1.06, allocations: 2.73 MB / 0.9427 GB, free: 112.5 MB / 0.7325 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.01456/1.075, allocations: 4.808 MB / 0.9474 GB, free: 110.2 MB / 0.7325 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 4.424e-05/1.075, allocations: 7.156 kB / 0.9474 GB, free: 110.2 MB / 0.7325 GB Notification: Performance of matching and sorting (n=301) (initialization_lambda0): time 0.01481/1.089, allocations: 6.19 MB / 0.9534 GB, free: 108.2 MB / 0.7325 GB Notification: Performance of prepare postOptimizeDAE: time 4.878e-05/1.09, allocations: 14.53 kB / 0.9535 GB, free: 108.2 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.734e-05/1.09, allocations: 24.69 kB / 0.9535 GB, free: 108.2 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.004144/1.094, allocations: 1.445 MB / 0.9549 GB, free: 107.8 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003403/1.097, allocations: 0.7688 MB / 0.9556 GB, free: 107.8 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01796/1.115, allocations: 18.73 MB / 0.9739 GB, free: 93.87 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003148/1.118, allocations: 473.1 kB / 0.9744 GB, free: 93.65 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003793/1.119, allocations: 118.8 kB / 0.9745 GB, free: 93.62 MB / 0.7325 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 102 * 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 (235): * Single equations (assignments): 229 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 6 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 6 systems {(3,9,100.0%), (3,9,100.0%), (3,9,100.0%), (3,9,100.0%), (3,9,100.0%), (3,9,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0006662/1.119, allocations: 329.2 kB / 0.9748 GB, free: 93.34 MB / 0.7325 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0003472/1.12, allocations: 144.2 kB / 0.975 GB, free: 93.26 MB / 0.7325 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01197/1.132, allocations: 5.792 MB / 0.9806 GB, free: 89.89 MB / 0.7325 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.761e-05/1.132, allocations: 15.34 kB / 0.9806 GB, free: 89.89 MB / 0.7325 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.696e-05/1.132, allocations: 19.67 kB / 0.9806 GB, free: 89.88 MB / 0.7325 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.092e-05/1.132, allocations: 7.969 kB / 0.9806 GB, free: 89.87 MB / 0.7325 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01737/1.149, allocations: 9.59 MB / 0.99 GB, free: 80.88 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.409e-05/1.149, allocations: 8 kB / 0.99 GB, free: 80.88 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.002136/1.151, allocations: 0.5186 MB / 0.9905 GB, free: 80.36 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.003333/1.155, allocations: 1.273 MB / 0.9918 GB, free: 79.06 MB / 0.7325 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001577/1.155, allocations: 59.62 kB / 0.9918 GB, free: 79.01 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.01619/1.171, allocations: 18.09 MB / 1.009 GB, free: 60.1 MB / 0.7325 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.521e-06/1.171, allocations: 7.938 kB / 1.01 GB, free: 60.09 MB / 0.7325 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01063/1.182, allocations: 5.057 MB / 1.014 GB, free: 54.91 MB / 0.7325 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0008309/1.183, allocations: 0.5188 MB / 1.015 GB, free: 54.37 MB / 0.7325 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0003831/1.183, allocations: 39.91 kB / 1.015 GB, free: 54.33 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002524/1.186, allocations: 439.3 kB / 1.015 GB, free: 53.9 MB / 0.7325 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0003683/1.186, allocations: 145 kB / 1.016 GB, free: 53.76 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001601/1.186, allocations: 67.95 kB / 1.016 GB, free: 53.7 MB / 0.7325 GB Notification: Performance of sorting global known variables: time 0.001157/1.187, allocations: 0.8168 MB / 1.016 GB, free: 52.87 MB / 0.7325 GB Notification: Performance of sort global known variables: time 1.6e-07/1.187, allocations: 0 / 1.016 GB, free: 52.87 MB / 0.7325 GB Notification: Performance of remove unused functions: time 0.004599/1.192, allocations: 1.27 MB / 1.018 GB, free: 51.6 MB / 0.7325 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 28 * 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 (104): * Single equations (assignments): 98 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 6 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 6 systems {(2,10,100.0%), (2,10,100.0%), (2,10,100.0%), (3,9,100.0%), (3,9,100.0%), (3,9,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.0002934/1.192, allocations: 167 kB / 1.018 GB, free: 51.43 MB / 0.7325 GB Notification: Performance of simCode: created initialization part: time 0.01813/1.21, allocations: 9.494 MB / 1.027 GB, free: 41.81 MB / 0.7325 GB Notification: Performance of simCode: created event and clocks part: time 1.49e-05/1.21, allocations: 4 kB / 1.027 GB, free: 41.8 MB / 0.7325 GB Notification: Performance of simCode: created simulation system equations: time 0.006553/1.217, allocations: 3.285 MB / 1.03 GB, free: 38.45 MB / 0.7325 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001888/1.219, allocations: 237.1 kB / 1.031 GB, free: 38.23 MB / 0.7325 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02045/1.239, allocations: 7.729 MB / 1.038 GB, free: 30.41 MB / 0.7325 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002286/1.242, allocations: 2.375 MB / 1.04 GB, free: 28 MB / 0.7325 GB Notification: Performance of simCode: alias equations: time 0.002903/1.245, allocations: 1.25 MB / 1.042 GB, free: 26.75 MB / 0.7325 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004572/1.245, allocations: 131.3 kB / 1.042 GB, free: 26.62 MB / 0.7325 GB Notification: Performance of SimCode: time 9.02e-07/1.245, allocations: 0 / 1.042 GB, free: 26.62 MB / 0.7325 GB Notification: Performance of Templates: time 0.06416/1.309, allocations: 45.56 MB / 1.086 GB, free: 13.36 MB / 0.7637 GB make -j1 -f Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerFull.makefile (rm -f Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerFull.pipe ; mkfifo Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerFull.pipe ; head -c 1048576 < Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerFull.pipe >> ../files/Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerFull.sim & ./Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerFull -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Conversion.Examples.TransformerFull.pipe 2>&1)