Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Sources.Examples.FixedVoltageSource.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/NcDataReader2 2.5.1-master/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo", uses=false) Using package BuildingSystems with version 2.0.0-beta (/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo) Using package NcDataReader2 with version 2.5.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-master/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(BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Sources.Examples.FixedVoltageSource,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Sources.Examples.FixedVoltageSource") translateModel(BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Sources.Examples.FixedVoltageSource,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Sources.Examples.FixedVoltageSource") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.00494/0.00494, allocations: 101.2 kB / 15.73 MB, free: 5.59 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001078/0.001079, allocations: 189.6 kB / 16.67 MB, free: 5.523 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.295/1.295, allocations: 222.9 MB / 240.4 MB, free: 15.14 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-master/package.mo): time 0.002115/0.002115, allocations: 295.3 kB / 290.8 MB, free: 14.45 MB / 238.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo): time 0.9431/0.9431, allocations: 169.3 MB / 0.4983 GB, free: 4.434 MB / 382.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001705/0.001705, allocations: 99.86 kB / 0.6815 GB, free: 6.973 MB / 494.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.4496/0.4513, allocations: 86.96 MB / 0.7664 GB, free: 3.98 MB / 0.5294 GB Notification: Performance of NFInst.instantiate(BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Sources.Examples.FixedVoltageSource): time 0.02038/0.4717, allocations: 16.7 MB / 0.7827 GB, free: 3.223 MB / 0.545 GB Notification: Performance of NFInst.instExpressions: time 0.01109/0.4828, allocations: 6.278 MB / 0.7888 GB, free: 12.93 MB / 0.5606 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001474/0.4843, allocations: 51.81 kB / 0.7889 GB, free: 12.88 MB / 0.5606 GB Notification: Performance of NFTyping.typeComponents: time 0.003677/0.488, allocations: 1.29 MB / 0.7901 GB, free: 11.58 MB / 0.5606 GB Notification: Performance of NFTyping.typeBindings: time 0.002601/0.4907, allocations: 0.8558 MB / 0.791 GB, free: 10.72 MB / 0.5606 GB Notification: Performance of NFTyping.typeClassSections: time 0.004037/0.4947, allocations: 1.544 MB / 0.7925 GB, free: 9.176 MB / 0.5606 GB Notification: Performance of NFFlatten.flatten: time 0.004501/0.4992, allocations: 3.851 MB / 0.7962 GB, free: 5.316 MB / 0.5606 GB Notification: Performance of NFFlatten.resolveConnections: time 0.00671/0.5059, allocations: 4.964 MB / 0.8011 GB, free: 296 kB / 0.5606 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002445/0.5084, allocations: 1.664 MB / 0.8027 GB, free: 14.62 MB / 0.5762 GB Notification: Performance of NFSimplifyModel.simplify: time 0.002989/0.5114, allocations: 1.987 MB / 0.8046 GB, free: 12.63 MB / 0.5762 GB Notification: Performance of NFPackage.collectConstants: time 0.0008978/0.5123, allocations: 380 kB / 0.805 GB, free: 12.26 MB / 0.5762 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001946/0.5143, allocations: 0.8192 MB / 0.8058 GB, free: 11.44 MB / 0.5762 GB Notification: Performance of NFScalarize.scalarize: time 0.002016/0.5163, allocations: 1.493 MB / 0.8073 GB, free: 9.941 MB / 0.5762 GB Notification: Performance of NFVerifyModel.verify: time 0.002483/0.5188, allocations: 1.537 MB / 0.8088 GB, free: 8.398 MB / 0.5762 GB Notification: Performance of NFConvertDAE.convert: time 0.005206/0.524, allocations: 5.534 MB / 0.8142 GB, free: 2.852 MB / 0.5762 GB Notification: Performance of FrontEnd - DAE generated: time 6.251e-06/0.524, allocations: 4 kB / 0.8142 GB, free: 2.848 MB / 0.5762 GB Notification: Performance of FrontEnd: time 3.877e-06/0.5241, allocations: 0 / 0.8142 GB, free: 2.848 MB / 0.5762 GB Notification: Performance of Transformations before backend: time 0.0001096/0.5242, allocations: 3.938 kB / 0.8142 GB, free: 2.844 MB / 0.5762 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 689 * Number of variables: 689 Notification: Performance of Generate backend data structure: time 0.005148/0.5293, allocations: 2.718 MB / 0.8168 GB, free: 68 kB / 0.5762 GB Notification: Performance of prepare preOptimizeDAE: time 5.157e-05/0.5294, allocations: 12.03 kB / 0.8168 GB, free: 56 kB / 0.5762 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.003604/0.533, allocations: 0.7784 MB / 0.8176 GB, free: 15.27 MB / 0.5919 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002516/0.5355, allocations: 1.438 MB / 0.819 GB, free: 13.79 MB / 0.5919 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001265/0.5357, allocations: 189.5 kB / 0.8192 GB, free: 13.6 MB / 0.5919 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0004066/0.5361, allocations: 248.4 kB / 0.8194 GB, free: 13.36 MB / 0.5919 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.006977/0.5431, allocations: 4.591 MB / 0.8239 GB, free: 8.566 MB / 0.5919 GB Notification: Performance of preOpt findStateOrder (simulation): time 6.027e-05/0.5432, allocations: 7.938 kB / 0.8239 GB, free: 8.559 MB / 0.5919 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0002698/0.5434, allocations: 108 kB / 0.824 GB, free: 8.453 MB / 0.5919 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001925/0.5436, allocations: 184.2 kB / 0.8242 GB, free: 8.27 MB / 0.5919 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.005637/0.5493, allocations: 3.834 MB / 0.8279 GB, free: 4.43 MB / 0.5919 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.02203/0.5713, allocations: 21.26 MB / 0.8487 GB, free: 13.27 MB / 0.6231 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002427/0.5738, allocations: 2.256 MB / 0.8509 GB, free: 10.72 MB / 0.6231 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0009615/0.5748, allocations: 0.7281 MB / 0.8516 GB, free: 9.969 MB / 0.6231 GB Notification: Performance of preOpt evalFunc (simulation): time 4.086e-05/0.5748, allocations: 15.92 kB / 0.8516 GB, free: 9.953 MB / 0.6231 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.068e-05/0.5749, allocations: 42.56 kB / 0.8517 GB, free: 9.902 MB / 0.6231 GB Notification: Performance of pre-optimization done (n=62): time 2.685e-06/0.5749, allocations: 4 kB / 0.8517 GB, free: 9.898 MB / 0.6231 GB Notification: Performance of matching and sorting (n=68): time 0.005257/0.5801, allocations: 4.19 MB / 0.8558 GB, free: 5.656 MB / 0.6231 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001135/0.5803, allocations: 252.4 kB / 0.856 GB, free: 5.355 MB / 0.6231 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001355/0.5816, allocations: 1.108 MB / 0.8571 GB, free: 4.223 MB / 0.6231 GB Notification: Performance of collectPreVariables (initialization): time 5.132e-05/0.5817, allocations: 41.7 kB / 0.8571 GB, free: 4.176 MB / 0.6231 GB Notification: Performance of collectInitialEqns (initialization): time 0.0006825/0.5824, allocations: 1.187 MB / 0.8583 GB, free: 2.969 MB / 0.6231 GB Notification: Performance of collectInitialBindings (initialization): time 0.000229/0.5826, allocations: 252.6 kB / 0.8585 GB, free: 2.719 MB / 0.6231 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004443/0.5831, allocations: 327.1 kB / 0.8588 GB, free: 2.391 MB / 0.6231 GB Notification: Performance of setup shared object (initialization): time 0.000128/0.5832, allocations: 345.9 kB / 0.8592 GB, free: 2.047 MB / 0.6231 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0009699/0.5842, allocations: 0.7074 MB / 0.8599 GB, free: 1.336 MB / 0.6231 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001377/0.5856, allocations: 1.407 MB / 0.8612 GB, free: 15.59 MB / 0.6387 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.00236/0.5879, allocations: 2.163 MB / 0.8634 GB, free: 13.1 MB / 0.6387 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.114e-05/0.5879, allocations: 8 kB / 0.8634 GB, free: 13.09 MB / 0.6387 GB Notification: Performance of matching and sorting (n=192) (initialization): time 0.003064/0.591, allocations: 2.183 MB / 0.8655 GB, free: 10.9 MB / 0.6387 GB Notification: Performance of prepare postOptimizeDAE: time 2.823e-05/0.5911, allocations: 23.44 kB / 0.8655 GB, free: 10.88 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.518e-05/0.5911, allocations: 24 kB / 0.8655 GB, free: 10.86 MB / 0.6387 GB Notification: Performance of postOpt tearingSystem (initialization): time 3.76e-05/0.5911, allocations: 39.94 kB / 0.8656 GB, free: 10.82 MB / 0.6387 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001373/0.5925, allocations: 431.2 kB / 0.866 GB, free: 10.4 MB / 0.6387 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 3.71e-05/0.5926, allocations: 47.8 kB / 0.866 GB, free: 10.35 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001101/0.5937, allocations: 195.3 kB / 0.8662 GB, free: 10.16 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001187/0.5938, allocations: 83.98 kB / 0.8663 GB, free: 10.08 MB / 0.6387 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.002082/0.5959, allocations: 1.546 MB / 0.8678 GB, free: 8.527 MB / 0.6387 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.001286/0.5972, allocations: 1.329 MB / 0.8691 GB, free: 6.852 MB / 0.6387 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.002065/0.5993, allocations: 1.968 MB / 0.871 GB, free: 4.531 MB / 0.6387 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 9.628e-06/0.5993, allocations: 8 kB / 0.871 GB, free: 4.523 MB / 0.6387 GB Notification: Performance of matching and sorting (n=192) (initialization_lambda0): time 0.002701/0.602, allocations: 1.984 MB / 0.873 GB, free: 2.531 MB / 0.6387 GB Notification: Performance of prepare postOptimizeDAE: time 2.174e-05/0.602, allocations: 16 kB / 0.873 GB, free: 2.516 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.192e-05/0.602, allocations: 28 kB / 0.873 GB, free: 2.488 MB / 0.6387 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.933e-05/0.6021, allocations: 35.94 kB / 0.873 GB, free: 2.453 MB / 0.6387 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001153/0.6032, allocations: 391.3 kB / 0.8734 GB, free: 2.07 MB / 0.6387 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 3.749e-05/0.6033, allocations: 51.8 kB / 0.8735 GB, free: 2.02 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009609/0.6042, allocations: 147.5 kB / 0.8736 GB, free: 1.875 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001023/0.6044, allocations: 83.98 kB / 0.8737 GB, free: 1.793 MB / 0.6387 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 108 * 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 (192): * Single equations (assignments): 192 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0003684/0.6047, allocations: 287.7 kB / 0.874 GB, free: 1.504 MB / 0.6387 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002716/0.605, allocations: 110.6 kB / 0.8741 GB, free: 1.395 MB / 0.6387 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001539/0.6065, allocations: 1.096 MB / 0.8751 GB, free: 300 kB / 0.6387 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.566e-06/0.6066, allocations: 8 kB / 0.8752 GB, free: 292 kB / 0.6387 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.008e-05/0.6066, allocations: 4 kB / 0.8752 GB, free: 288 kB / 0.6387 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 9.558e-06/0.6066, allocations: 4.266 kB / 0.8752 GB, free: 284 kB / 0.6387 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01132/0.6179, allocations: 10.18 MB / 0.8851 GB, free: 5.832 MB / 0.6544 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.596e-05/0.618, allocations: 20.03 kB / 0.8851 GB, free: 5.812 MB / 0.6544 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0006073/0.6186, allocations: 187.7 kB / 0.8853 GB, free: 5.629 MB / 0.6544 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.979e-05/0.6186, allocations: 20 kB / 0.8853 GB, free: 5.609 MB / 0.6544 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 7.048e-05/0.6187, allocations: 40 kB / 0.8854 GB, free: 5.57 MB / 0.6544 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 2.151e-05/0.6187, allocations: 31.86 kB / 0.8854 GB, free: 5.539 MB / 0.6544 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.388e-05/0.6187, allocations: 19.94 kB / 0.8854 GB, free: 5.52 MB / 0.6544 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001996/0.6207, allocations: 2.173 MB / 0.8875 GB, free: 3.133 MB / 0.6544 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0004247/0.6212, allocations: 319.6 kB / 0.8878 GB, free: 2.801 MB / 0.6544 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001316/0.6213, allocations: 39.98 kB / 0.8879 GB, free: 2.762 MB / 0.6544 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0008737/0.6222, allocations: 95.86 kB / 0.888 GB, free: 2.668 MB / 0.6544 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001213/0.6223, allocations: 99.5 kB / 0.8881 GB, free: 2.57 MB / 0.6544 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.446e-05/0.6224, allocations: 43.98 kB / 0.8881 GB, free: 2.527 MB / 0.6544 GB Notification: Performance of sorting global known variables: time 0.0008968/0.6233, allocations: 0.7658 MB / 0.8888 GB, free: 1.75 MB / 0.6544 GB Notification: Performance of sort global known variables: time 1.2e-07/0.6233, allocations: 0 / 0.8888 GB, free: 1.75 MB / 0.6544 GB Notification: Performance of remove unused functions: time 0.002659/0.626, allocations: 0.7227 MB / 0.8896 GB, free: 1.027 MB / 0.6544 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 70 * 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 (74): * Single equations (assignments): 74 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.0001998/0.6262, allocations: 158.9 kB / 0.8897 GB, free: 0.8594 MB / 0.6544 GB Notification: Performance of simCode: created initialization part: time 0.003349/0.6295, allocations: 2.518 MB / 0.8922 GB, free: 14.36 MB / 0.67 GB Notification: Performance of simCode: created event and clocks part: time 8.196e-06/0.6295, allocations: 4 kB / 0.8922 GB, free: 14.35 MB / 0.67 GB Notification: Performance of simCode: created simulation system equations: time 0.0007211/0.6303, allocations: 0.5683 MB / 0.8927 GB, free: 13.79 MB / 0.67 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.00182/0.6321, allocations: 250.9 kB / 0.893 GB, free: 13.55 MB / 0.67 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.006116/0.6382, allocations: 4.397 MB / 0.8973 GB, free: 8.914 MB / 0.67 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001806/0.6401, allocations: 2.011 MB / 0.8992 GB, free: 6.871 MB / 0.67 GB Notification: Performance of simCode: alias equations: time 0.001769/0.6418, allocations: 0.8483 MB / 0.9 GB, free: 6.02 MB / 0.67 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002699/0.6421, allocations: 91.41 kB / 0.9001 GB, free: 5.93 MB / 0.67 GB Notification: Performance of SimCode: time 5.01e-07/0.6421, allocations: 0 / 0.9001 GB, free: 5.93 MB / 0.67 GB Notification: Performance of Templates: time 0.02341/0.6655, allocations: 14.78 MB / 0.9146 GB, free: 7.289 MB / 0.6856 GB make -j1 -f BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Sources.Examples.FixedVoltageSource.makefile (rm -f BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Sources.Examples.FixedVoltageSource.pipe ; mkfifo BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Sources.Examples.FixedVoltageSource.pipe ; head -c 1048576 < BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Sources.Examples.FixedVoltageSource.pipe >> ../files/BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Sources.Examples.FixedVoltageSource.sim & ./BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Sources.Examples.FixedVoltageSource -abortSlowSimulation -alarm=480 -lv LOG_STATS > BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Sources.Examples.FixedVoltageSource.pipe 2>&1)