Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr BuildingSystems_BuildingSystems.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid.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.OnePhase.Examples.GeneratorLoadGrid,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="BuildingSystems_BuildingSystems.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid") translateModel(BuildingSystems.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="BuildingSystems_BuildingSystems.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.007174/0.007173, allocations: 98.27 kB / 15.73 MB, free: 6.004 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001538/0.001538, allocations: 192.9 kB / 16.67 MB, free: 5.926 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.3/1.3, allocations: 222.9 MB / 240.4 MB, free: 15.07 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-master/package.mo): time 0.002068/0.002068, allocations: 290.8 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 0.9062/0.9062, allocations: 169.3 MB / 0.4983 GB, free: 4.41 MB / 382.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001788/0.001788, allocations: 99.84 kB / 0.6814 GB, free: 6.965 MB / 494.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.384/0.3858, allocations: 86.98 MB / 0.7664 GB, free: 3.938 MB / 0.5294 GB Notification: Performance of NFInst.instantiate(BuildingSystems.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid): time 0.00423/0.3901, allocations: 2.888 MB / 0.7692 GB, free: 1.035 MB / 0.5294 GB Notification: Performance of NFInst.instExpressions: time 0.002547/0.3926, allocations: 1.64 MB / 0.7708 GB, free: 15.39 MB / 0.545 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0001495/0.3928, allocations: 4 kB / 0.7708 GB, free: 15.38 MB / 0.545 GB Notification: Performance of NFTyping.typeComponents: time 0.0007797/0.3936, allocations: 243 kB / 0.771 GB, free: 15.14 MB / 0.545 GB Notification: Performance of NFTyping.typeBindings: time 0.0004473/0.3941, allocations: 179.2 kB / 0.7712 GB, free: 14.97 MB / 0.545 GB Notification: Performance of NFTyping.typeClassSections: time 0.0005329/0.3946, allocations: 227.4 kB / 0.7714 GB, free: 14.75 MB / 0.545 GB Notification: Performance of NFFlatten.flatten: time 0.0003777/0.395, allocations: 311 kB / 0.7717 GB, free: 14.44 MB / 0.545 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0003278/0.3953, allocations: 186.1 kB / 0.7719 GB, free: 14.26 MB / 0.545 GB Notification: Performance of NFEvalConstants.evaluate: time 0.000192/0.3955, allocations: 119.6 kB / 0.772 GB, free: 14.14 MB / 0.545 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0002879/0.3958, allocations: 151.4 kB / 0.7721 GB, free: 13.99 MB / 0.545 GB Notification: Performance of NFPackage.collectConstants: time 3.954e-05/0.3959, allocations: 20 kB / 0.7722 GB, free: 13.97 MB / 0.545 GB Notification: Performance of NFFlatten.collectFunctions: time 0.000412/0.3963, allocations: 251.5 kB / 0.7724 GB, free: 13.73 MB / 0.545 GB Notification: Performance of NFScalarize.scalarize: time 0.0001016/0.3964, allocations: 83.8 kB / 0.7725 GB, free: 13.64 MB / 0.545 GB Notification: Performance of NFVerifyModel.verify: time 0.0001232/0.3965, allocations: 115.5 kB / 0.7726 GB, free: 13.53 MB / 0.545 GB Notification: Performance of NFConvertDAE.convert: time 0.0005342/0.3971, allocations: 416.3 kB / 0.773 GB, free: 13.13 MB / 0.545 GB Notification: Performance of FrontEnd - DAE generated: time 3.376e-06/0.3971, allocations: 7.938 kB / 0.773 GB, free: 13.12 MB / 0.545 GB Notification: Performance of FrontEnd: time 9.72e-07/0.3971, allocations: 0 / 0.773 GB, free: 13.12 MB / 0.545 GB Notification: Performance of Transformations before backend: time 7.905e-06/0.3971, allocations: 4 kB / 0.773 GB, free: 13.12 MB / 0.545 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 53 * Number of variables: 53 Notification: Performance of Generate backend data structure: time 0.0008335/0.398, allocations: 0.5452 MB / 0.7735 GB, free: 12.52 MB / 0.545 GB Notification: Performance of prepare preOptimizeDAE: time 3.13e-05/0.398, allocations: 8.031 kB / 0.7735 GB, free: 12.51 MB / 0.545 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.000712/0.3987, allocations: 96.69 kB / 0.7736 GB, free: 12.42 MB / 0.545 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0003113/0.399, allocations: 256 kB / 0.7739 GB, free: 12.13 MB / 0.545 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 2e-05/0.3991, allocations: 24.69 kB / 0.7739 GB, free: 12.11 MB / 0.545 GB Notification: Performance of preOpt expandDerOperator (simulation): time 4.339e-05/0.3991, allocations: 20.36 kB / 0.7739 GB, free: 12.09 MB / 0.545 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0005923/0.3997, allocations: 370.6 kB / 0.7743 GB, free: 11.69 MB / 0.545 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.354e-05/0.3997, allocations: 4 kB / 0.7743 GB, free: 11.69 MB / 0.545 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 3.121e-05/0.3998, allocations: 15.98 kB / 0.7743 GB, free: 11.67 MB / 0.545 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.037e-05/0.3998, allocations: 24.3 kB / 0.7743 GB, free: 11.64 MB / 0.545 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0006006/0.4004, allocations: 324.6 kB / 0.7746 GB, free: 11.33 MB / 0.545 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001699/0.4021, allocations: 1.713 MB / 0.7763 GB, free: 9.48 MB / 0.545 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0006946/0.4028, allocations: 331.1 kB / 0.7766 GB, free: 9.141 MB / 0.545 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002685/0.4031, allocations: 149.6 kB / 0.7768 GB, free: 8.988 MB / 0.545 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0001306/0.4033, allocations: 93.09 kB / 0.7768 GB, free: 8.879 MB / 0.545 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.215e-05/0.4033, allocations: 38.5 kB / 0.7769 GB, free: 8.832 MB / 0.545 GB Notification: Performance of pre-optimization done (n=20): time 1.413e-06/0.4033, allocations: 0 / 0.7769 GB, free: 8.832 MB / 0.545 GB Notification: Performance of matching and sorting (n=21): time 0.001329/0.4046, allocations: 0.6002 MB / 0.7775 GB, free: 8.203 MB / 0.545 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.103e-05/0.4047, allocations: 77.11 kB / 0.7775 GB, free: 8.109 MB / 0.545 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0001862/0.4049, allocations: 208.5 kB / 0.7777 GB, free: 7.898 MB / 0.545 GB Notification: Performance of collectPreVariables (initialization): time 2.296e-05/0.4049, allocations: 29.7 kB / 0.7778 GB, free: 7.863 MB / 0.545 GB Notification: Performance of collectInitialEqns (initialization): time 9.373e-05/0.405, allocations: 164.2 kB / 0.7779 GB, free: 7.699 MB / 0.545 GB Notification: Performance of collectInitialBindings (initialization): time 5.345e-05/0.4051, allocations: 75.31 kB / 0.778 GB, free: 7.625 MB / 0.545 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001045/0.4052, allocations: 65.92 kB / 0.7781 GB, free: 7.555 MB / 0.545 GB Notification: Performance of setup shared object (initialization): time 0.0001014/0.4053, allocations: 334.8 kB / 0.7784 GB, free: 7.219 MB / 0.545 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002615/0.4056, allocations: 133.9 kB / 0.7785 GB, free: 7.086 MB / 0.545 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0003069/0.4059, allocations: 211.3 kB / 0.7787 GB, free: 6.844 MB / 0.545 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0005685/0.4065, allocations: 368.7 kB / 0.7791 GB, free: 6.449 MB / 0.545 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.543e-06/0.4065, allocations: 0 / 0.7791 GB, free: 6.449 MB / 0.545 GB Notification: Performance of matching and sorting (n=33) (initialization): time 0.0007744/0.4072, allocations: 421.9 kB / 0.7795 GB, free: 6.027 MB / 0.545 GB Notification: Performance of prepare postOptimizeDAE: time 1.285e-05/0.4073, allocations: 4 kB / 0.7795 GB, free: 6.023 MB / 0.545 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.046e-06/0.4073, allocations: 8 kB / 0.7795 GB, free: 6.016 MB / 0.545 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0002267/0.4075, allocations: 49.16 kB / 0.7795 GB, free: 5.965 MB / 0.545 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002982/0.4078, allocations: 67.89 kB / 0.7796 GB, free: 5.898 MB / 0.545 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001365/0.4092, allocations: 1.615 MB / 0.7812 GB, free: 4.137 MB / 0.545 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002269/0.4094, allocations: 27.92 kB / 0.7812 GB, free: 4.109 MB / 0.545 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.874e-05/0.4095, allocations: 15.98 kB / 0.7812 GB, free: 4.094 MB / 0.545 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0003245/0.4098, allocations: 228.6 kB / 0.7814 GB, free: 3.867 MB / 0.545 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0002807/0.4101, allocations: 214 kB / 0.7816 GB, free: 3.621 MB / 0.545 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0005219/0.4106, allocations: 361.2 kB / 0.782 GB, free: 3.23 MB / 0.545 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.784e-06/0.4106, allocations: 4 kB / 0.782 GB, free: 3.227 MB / 0.545 GB Notification: Performance of matching and sorting (n=33) (initialization_lambda0): time 0.000747/0.4114, allocations: 410 kB / 0.7824 GB, free: 2.816 MB / 0.545 GB Notification: Performance of prepare postOptimizeDAE: time 1.044e-05/0.4114, allocations: 10.81 kB / 0.7824 GB, free: 2.809 MB / 0.545 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.855e-06/0.4114, allocations: 0 / 0.7824 GB, free: 2.809 MB / 0.545 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0001382/0.4116, allocations: 40.83 kB / 0.7824 GB, free: 2.766 MB / 0.545 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002733/0.4118, allocations: 71.88 kB / 0.7825 GB, free: 2.695 MB / 0.545 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001275/0.4131, allocations: 1.615 MB / 0.7841 GB, free: 0.9336 MB / 0.545 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002019/0.4133, allocations: 24.05 kB / 0.7841 GB, free: 0.9102 MB / 0.545 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.23e-05/0.4134, allocations: 8.188 kB / 0.7841 GB, free: 0.9023 MB / 0.545 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 12 * 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): 30 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(1,2,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.000127/0.4135, allocations: 200.1 kB / 0.7843 GB, free: 0.6992 MB / 0.545 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 6.773e-05/0.4136, allocations: 31.78 kB / 0.7843 GB, free: 0.668 MB / 0.545 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0007151/0.4143, allocations: 352.1 kB / 0.7846 GB, free: 320 kB / 0.545 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.901e-06/0.4143, allocations: 4 kB / 0.7847 GB, free: 316 kB / 0.545 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.885e-06/0.4143, allocations: 0 / 0.7847 GB, free: 316 kB / 0.545 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.78e-06/0.4143, allocations: 0 / 0.7847 GB, free: 316 kB / 0.545 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001409/0.4158, allocations: 0.9668 MB / 0.7856 GB, free: 15.27 MB / 0.5606 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.599e-06/0.4158, allocations: 4 kB / 0.7856 GB, free: 15.26 MB / 0.5606 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002391/0.416, allocations: 59.83 kB / 0.7857 GB, free: 15.2 MB / 0.5606 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0001131/0.4161, allocations: 32.83 kB / 0.7857 GB, free: 15.17 MB / 0.5606 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.214e-05/0.4162, allocations: 8 kB / 0.7857 GB, free: 15.16 MB / 0.5606 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001115/0.4173, allocations: 1.508 MB / 0.7872 GB, free: 13.51 MB / 0.5606 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.447e-06/0.4173, allocations: 8.094 kB / 0.7872 GB, free: 13.5 MB / 0.5606 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0007263/0.418, allocations: 0.529 MB / 0.7877 GB, free: 12.93 MB / 0.5606 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001067/0.4182, allocations: 128.9 kB / 0.7878 GB, free: 12.79 MB / 0.5606 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 3.31e-05/0.4182, allocations: 7.938 kB / 0.7878 GB, free: 12.78 MB / 0.5606 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0002376/0.4184, allocations: 23.97 kB / 0.7878 GB, free: 12.76 MB / 0.5606 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 6.576e-05/0.4185, allocations: 28.05 kB / 0.7879 GB, free: 12.73 MB / 0.5606 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 1.851e-05/0.4185, allocations: 15.98 kB / 0.7879 GB, free: 12.71 MB / 0.5606 GB Notification: Performance of sorting global known variables: time 0.0001297/0.4187, allocations: 159.7 kB / 0.788 GB, free: 12.56 MB / 0.5606 GB Notification: Performance of sort global known variables: time 1.3e-07/0.4187, allocations: 0 / 0.788 GB, free: 12.56 MB / 0.5606 GB Notification: Performance of remove unused functions: time 0.0005556/0.4192, allocations: 104 kB / 0.7881 GB, free: 12.46 MB / 0.5606 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 8 * 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 (21): * Single equations (assignments): 20 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(1,2,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.0001259/0.4194, allocations: 107.8 kB / 0.7882 GB, free: 12.34 MB / 0.5606 GB Notification: Performance of simCode: created initialization part: time 0.001265/0.4207, allocations: 0.7481 MB / 0.789 GB, free: 11.57 MB / 0.5606 GB Notification: Performance of simCode: created event and clocks part: time 2.955e-06/0.4207, allocations: 0 / 0.789 GB, free: 11.57 MB / 0.5606 GB Notification: Performance of simCode: created simulation system equations: time 0.0003951/0.4211, allocations: 274.7 kB / 0.7892 GB, free: 11.29 MB / 0.5606 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0004771/0.4216, allocations: 31.98 kB / 0.7893 GB, free: 11.26 MB / 0.5606 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0008798/0.4225, allocations: 0.5584 MB / 0.7898 GB, free: 10.66 MB / 0.5606 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0002999/0.4228, allocations: 0.7717 MB / 0.7906 GB, free: 9.863 MB / 0.5606 GB Notification: Performance of simCode: alias equations: time 0.0002259/0.423, allocations: 89.84 kB / 0.7907 GB, free: 9.773 MB / 0.5606 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 7.419e-05/0.4231, allocations: 19.44 kB / 0.7907 GB, free: 9.754 MB / 0.5606 GB Notification: Performance of SimCode: time 2.6e-07/0.4231, allocations: 0 / 0.7907 GB, free: 9.754 MB / 0.5606 GB Notification: Performance of Templates: time 0.00633/0.4294, allocations: 3.34 MB / 0.7939 GB, free: 6.422 MB / 0.5606 GB make -j1 -f BuildingSystems_BuildingSystems.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid.makefile (rm -f BuildingSystems_BuildingSystems.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid.pipe ; mkfifo BuildingSystems_BuildingSystems.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid.pipe ; head -c 1048576 < BuildingSystems_BuildingSystems.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid.pipe >> ../files/BuildingSystems_BuildingSystems.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid.sim & ./BuildingSystems_BuildingSystems.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid -abortSlowSimulation -alarm=480 -lv LOG_STATS > BuildingSystems_BuildingSystems.Electrical.AC.OnePhase.Examples.GeneratorLoadGrid.pipe 2>&1)