Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr AixLib_AixLib.Airflow.Multizone.Validation.OneWayFlow.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/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/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_DeviceDrivers 2.1.1/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/SDF master/package.mo", uses=false) Using package SDF with version 0.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/SDF master/package.mo) Using package Modelica_DeviceDrivers with version 2.1.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_DeviceDrivers 2.1.1/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) 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 AixLib with version 1.3.2 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/package.mo) Running command: translateModel(AixLib.Airflow.Multizone.Validation.OneWayFlow,tolerance=1e-06,outputFormat="empty",numberOfIntervals=1000,variableFilter="",fileNamePrefix="AixLib_AixLib.Airflow.Multizone.Validation.OneWayFlow") translateModel(AixLib.Airflow.Multizone.Validation.OneWayFlow,tolerance=1e-06,outputFormat="empty",numberOfIntervals=1000,variableFilter="",fileNamePrefix="AixLib_AixLib.Airflow.Multizone.Validation.OneWayFlow") [:1:1-1:32:writable] Error: Class GC_set_max_heap_size not found in scope (looking for a function or record). [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/BoundaryConditions/InternalGains/Examples/InternalGains/Lights.mo:27:20-27:398:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/BoundaryConditions/InternalGains/Examples/InternalGains/Machines.mo:31:20-31:400:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/DataBase/CHP/CHPDataSimple/CHP_Cleanergy_C9G.mo:36:34-36:594:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/DataBase/CHP/CHPDataSimple/CHP_XRGI_9kWel.mo:25:34-25:588:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/DataBase/CHP/CHPDataSimple/CHP_XRGI_9kWel.mo:25:34-25:3852:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/DataBase/Weather/SurfaceOrientation/SurfaceOrientationData_NE_SE_SW_NW_Hor.mo:5:35-5:324:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/DataBase/Weather/SurfaceOrientation/SurfaceOrientationData_N_E_S_W_Hor.mo:5:35-5:320:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/DataBase/Weather/SurfaceOrientation/SurfaceOrientationData_N_E_S_W_RoofN_Roof_S.mo:5:35-5:362:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:6228:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:6853:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:8435:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:9369:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:11505:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/Obsolete/YearIndependent/FastHVAC/Components/HeatExchangers/RadiatorMultiLayer.mo:265:34-265:12875:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/ThermalZones/HighOrder/Components/DryAir/InfiltrationRate_DIN12831.mo:20:192-20:2066:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/ThermalZones/HighOrder/Components/DryAir/InfiltrationRate_DIN12831.mo:20:192-20:4252:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/ThermalZones/HighOrder/Components/Examples/DryAir/DryAir_test.mo:71:18-71:405:writable] Warning: Lexer treating \ as \\, since \ is not a valid Modelica escape sequence. Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/AixLib 1.3.2/package.mo): time 1.605/1.605, allocations: 264.6 MB / 271.9 MB, free: 8.918 MB / 218.8 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001116/0.001117, allocations: 177.3 kB / 329.3 MB, free: 488 kB / 266.8 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.297/1.297, allocations: 221.4 MB / 0.5937 GB, free: 14.61 MB / 458.8 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001101/0.001101, allocations: 96.56 kB / 0.6989 GB, free: 2.758 MB / 0.5418 GB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_DeviceDrivers 2.1.1/package.mo): time 0.04602/0.04602, allocations: 11.9 MB / 0.8156 GB, free: 65.62 MB / 0.5418 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/SDF master/package.mo:9:42-9:258:writable] Notification: This is an open source dummy package of a commercial library. If you want it to be supported, you will need to add an implemention on our github repository: https://github.com/Modelica-OpenVendorSpecificLibraries. Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/SDF master/package.mo): time 0.0003617/0.0003618, allocations: 11.75 kB / 0.9236 GB, free: 86.93 MB / 0.573 GB Notification: Performance of FrontEnd - loaded program: time 7.143e-06/7.163e-06, allocations: 0 / 1.039 GB, free: 9.297 MB / 0.5887 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2346/0.2346, allocations: 110.2 MB / 1.146 GB, free: 10.98 MB / 0.698 GB Notification: Performance of FrontEnd - scodeFlatten: time 9.346/9.581, allocations: 4.41 GB / 5.556 GB, free: 298.2 MB / 0.9324 GB Notification: Performance of FrontEnd - mkProgramGraph: time 0.0002066/9.581, allocations: 87.86 kB / 5.556 GB, free: 298.2 MB / 0.9324 GB Notification: Performance of FrontEnd: time 4.196/13.78, allocations: 1.401 GB / 6.958 GB, free: 120.8 MB / 0.9637 GB Notification: Performance of Transformations before backend: time 0.000176/13.78, allocations: 54.77 kB / 6.958 GB, free: 120.8 MB / 0.9637 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 343 * Number of variables: 343 Notification: Performance of Generate backend data structure: time 0.005593/13.78, allocations: 2.373 MB / 6.96 GB, free: 120 MB / 0.9637 GB Notification: Performance of prepare preOptimizeDAE: time 5.393e-05/13.78, allocations: 8 kB / 6.96 GB, free: 120 MB / 0.9637 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.00226/13.79, allocations: 428.3 kB / 6.96 GB, free: 119.8 MB / 0.9637 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.00394/13.79, allocations: 2.037 MB / 6.962 GB, free: 119.5 MB / 0.9637 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.373e-05/13.79, allocations: 45.64 kB / 6.962 GB, free: 119.5 MB / 0.9637 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001512/13.79, allocations: 82.09 kB / 6.962 GB, free: 119.4 MB / 0.9637 GB Notification: Performance of preOpt removeEqualFunctionCalls (simulation): time 0.001603/13.79, allocations: 0.8861 MB / 6.963 GB, free: 119.4 MB / 0.9637 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001928/13.79, allocations: 1.386 MB / 6.965 GB, free: 119 MB / 0.9637 GB Notification: Performance of preOpt findStateOrder (simulation): time 4.818e-05/13.79, allocations: 5.812 kB / 6.965 GB, free: 119 MB / 0.9637 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 8.563e-05/13.79, allocations: 3.625 kB / 6.965 GB, free: 119 MB / 0.9637 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 7.455e-05/13.79, allocations: 57.47 kB / 6.965 GB, free: 119 MB / 0.9637 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.009149/13.8, allocations: 8.878 MB / 6.973 GB, free: 113.3 MB / 0.9637 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0008057/13.8, allocations: 0.59 MB / 6.974 GB, free: 113.3 MB / 0.9637 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002952/13.8, allocations: 250.6 kB / 6.974 GB, free: 113.3 MB / 0.9637 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0006587/13.8, allocations: 0.7804 MB / 6.975 GB, free: 112.4 MB / 0.9637 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.042e-05/13.8, allocations: 40.41 kB / 6.975 GB, free: 112.4 MB / 0.9637 GB Notification: Performance of pre-optimization done (n=50): time 3.586e-06/13.8, allocations: 3.5 kB / 6.975 GB, free: 112.4 MB / 0.9637 GB Notification: Performance of matching and sorting (n=50): time 0.001663/13.81, allocations: 0.6818 MB / 6.976 GB, free: 112.2 MB / 0.9637 GB Notification: Performance of inlineWhenForInitialization (initialization): time 2.872e-05/13.81, allocations: 62.41 kB / 6.976 GB, free: 112.2 MB / 0.9637 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003673/13.81, allocations: 2.797 MB / 6.978 GB, free: 111.9 MB / 0.9637 GB Notification: Performance of collectPreVariables (initialization): time 5.589e-05/13.81, allocations: 25.7 kB / 6.978 GB, free: 111.9 MB / 0.9637 GB Notification: Performance of collectInitialEqns (initialization): time 0.0003917/13.81, allocations: 0.6367 MB / 6.979 GB, free: 111.7 MB / 0.9637 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001469/13.81, allocations: 168.8 kB / 6.979 GB, free: 111.6 MB / 0.9637 GB Notification: Performance of simplifyInitialFunctions (initialization): time 2.207e-05/13.81, allocations: 0 / 6.979 GB, free: 111.6 MB / 0.9637 GB Notification: Performance of setup shared object (initialization): time 7.92e-05/13.81, allocations: 330.1 kB / 6.98 GB, free: 111.3 MB / 0.9637 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002451/13.81, allocations: 187 kB / 6.98 GB, free: 111.3 MB / 0.9637 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0003048/13.81, allocations: 290.1 kB / 6.98 GB, free: 111.2 MB / 0.9637 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.000424/13.81, allocations: 224.8 kB / 6.98 GB, free: 111.2 MB / 0.9637 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.208e-06/13.81, allocations: 3.594 kB / 6.98 GB, free: 111.2 MB / 0.9637 GB Notification: Performance of matching and sorting (n=58) (initialization): time 0.001183/13.81, allocations: 0.6907 MB / 6.981 GB, free: 111 MB / 0.9637 GB Notification: Performance of prepare postOptimizeDAE: time 1.619e-05/13.81, allocations: 7.469 kB / 6.981 GB, free: 111 MB / 0.9637 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.799e-06/13.81, allocations: 0 / 6.981 GB, free: 111 MB / 0.9637 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.454e-05/13.81, allocations: 7.531 kB / 6.981 GB, free: 111 MB / 0.9637 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004423/13.81, allocations: 116.2 kB / 6.981 GB, free: 111 MB / 0.9637 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 8.787e-06/13.81, allocations: 6.531 kB / 6.981 GB, free: 111 MB / 0.9637 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001138/13.81, allocations: 103.8 kB / 6.981 GB, free: 111 MB / 0.9637 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.857e-05/13.81, allocations: 38.16 kB / 6.981 GB, free: 111 MB / 0.9637 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 11 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (58): * Single equations (assignments): 58 * 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: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0001094/13.81, allocations: 122.9 kB / 6.981 GB, free: 110.9 MB / 0.9637 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002608/13.81, allocations: 188.9 kB / 6.981 GB, free: 110.8 MB / 0.9637 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001505/13.82, allocations: 0.8255 MB / 6.982 GB, free: 110.8 MB / 0.9637 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.135e-06/13.82, allocations: 6.406 kB / 6.982 GB, free: 110.8 MB / 0.9637 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.771e-06/13.82, allocations: 0 / 6.982 GB, free: 110.8 MB / 0.9637 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 7.003e-06/13.82, allocations: 3.938 kB / 6.982 GB, free: 110.8 MB / 0.9637 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.004199/13.82, allocations: 2.406 MB / 6.985 GB, free: 110.4 MB / 0.9637 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.468e-06/13.82, allocations: 0 / 6.985 GB, free: 110.4 MB / 0.9637 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0004811/13.82, allocations: 112.7 kB / 6.985 GB, free: 110.4 MB / 0.9637 GB Notification: Performance of postOpt tearingSystem (simulation): time 8.426e-06/13.82, allocations: 0 / 6.985 GB, free: 110.4 MB / 0.9637 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.999e-05/13.82, allocations: 14 kB / 6.985 GB, free: 110.4 MB / 0.9637 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 6.102e-06/13.82, allocations: 7.359 kB / 6.985 GB, free: 110.4 MB / 0.9637 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.108e-06/13.82, allocations: 3.562 kB / 6.985 GB, free: 110.4 MB / 0.9637 GB Notification: Performance of postOpt detectJacobianSparsePattern (simulation): time 0.001512/13.82, allocations: 1.242 MB / 6.986 GB, free: 110 MB / 0.9637 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001008/13.82, allocations: 0.5148 MB / 6.986 GB, free: 109.8 MB / 0.9637 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0003408/13.82, allocations: 8.078 kB / 6.986 GB, free: 109.8 MB / 0.9637 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0008752/13.82, allocations: 91.56 kB / 6.987 GB, free: 109.8 MB / 0.9637 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 9.49e-05/13.82, allocations: 35.81 kB / 6.987 GB, free: 109.8 MB / 0.9637 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 4.918e-05/13.82, allocations: 30.39 kB / 6.987 GB, free: 109.8 MB / 0.9637 GB Notification: Performance of sort global known variables: time 0.002693/13.83, allocations: 2.165 MB / 6.989 GB, free: 109.6 MB / 0.9637 GB Notification: Performance of remove unused functions: time 0.002458/13.83, allocations: 0.7806 MB / 6.99 GB, free: 109.6 MB / 0.9637 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 7 * Number of states: 8 (ela.mExc,ori.mExc,pow_1dat.mExc,pow_2dat.mExc,pow_m_flow.mExc,pow_V_flow.mExc,tabDat_m_flow.mExc,tabDat_V_flow.mExc) * Number of discrete variables: 0 () * Number of discrete states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (53): * Single equations (assignments): 53 * 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: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.005532/13.84, allocations: 3.828 MB / 6.993 GB, free: 108.2 MB / 0.9637 GB Notification: Performance of simCode: created initialization part: time 0.0008287/13.84, allocations: 436 kB / 6.994 GB, free: 108.2 MB / 0.9637 GB Notification: Performance of simCode: created event and clocks part: time 4.99e-06/13.84, allocations: 0 / 6.994 GB, free: 108.2 MB / 0.9637 GB Notification: Performance of simCode: created simulation system equations: time 0.0003089/13.84, allocations: 252.2 kB / 6.994 GB, free: 108.2 MB / 0.9637 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002903/13.84, allocations: 392.2 kB / 6.994 GB, free: 108.2 MB / 0.9637 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.007881/13.85, allocations: 3.423 MB / 6.998 GB, free: 107.4 MB / 0.9637 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001877/13.85, allocations: 1.891 MB / 6.999 GB, free: 106.6 MB / 0.9637 GB Notification: Performance of SimCode: time 1.694e-06/13.85, allocations: 0 / 6.999 GB, free: 106.6 MB / 0.9637 GB Notification: Performance of Templates: time 0.0643/13.91, allocations: 38.17 MB / 7.037 GB, free: 106 MB / 0.9637 GB make -j1 -f AixLib_AixLib.Airflow.Multizone.Validation.OneWayFlow.makefile (rm -f AixLib_AixLib.Airflow.Multizone.Validation.OneWayFlow.pipe ; mkfifo AixLib_AixLib.Airflow.Multizone.Validation.OneWayFlow.pipe ; head -c 1048576 < AixLib_AixLib.Airflow.Multizone.Validation.OneWayFlow.pipe >> ../files/AixLib_AixLib.Airflow.Multizone.Validation.OneWayFlow.sim & ./AixLib_AixLib.Airflow.Multizone.Validation.OneWayFlow -abortSlowSimulation -alarm=480 -lv LOG_STATS > AixLib_AixLib.Airflow.Multizone.Validation.OneWayFlow.pipe 2>&1)