Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8.0.0_Buildings.Examples.ChillerPlant.BaseClasses.Controls.Examples.BatteryControl.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.0/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+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/ModelicaServices 3.2.3+maint.om/package.mo", uses=false) Using package ModelicaServices with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/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 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo) Using package Buildings with version 8.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.0/package.mo) Running command: "" <> buildModelFMU(Buildings.Examples.ChillerPlant.BaseClasses.Controls.Examples.BatteryControl,fileNamePrefix="Buildings_8_0_0_Buildings_Examples_ChillerPlant_BaseClasses_Controls_Examples_BatteryControl",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Examples.ChillerPlant.BaseClasses.Controls.Examples.BatteryControl,fileNamePrefix="Buildings_8_0_0_Buildings_Examples_ChillerPlant_BaseClasses_Controls_Examples_BatteryControl",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.0/package.mo): time 2.706/2.706, allocations: 287.3 MB / 302.3 MB, free: 8.277 MB / 234.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.001534/0.001534, allocations: 185.5 kB / 370.8 MB, free: 10.86 MB / 298.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 2.411/2.411, allocations: 205.4 MB / 0.6295 GB, free: 10.6 MB / 458.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.00119/0.001189, allocations: 104.5 kB / 0.7428 GB, free: 6.602 MB / 0.5573 GB Notification: Performance of FrontEnd - loaded program: time 0.0006729/0.000673, allocations: 11.58 kB / 0.8657 GB, free: 140.8 MB / 0.6198 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2397/0.2404, allocations: 115.3 MB / 0.9783 GB, free: 28.29 MB / 0.6198 GB Notification: Performance of NFInst.instantiate(Buildings.Examples.ChillerPlant.BaseClasses.Controls.Examples.BatteryControl): time 0.003108/0.2436, allocations: 1.915 MB / 0.9802 GB, free: 26.35 MB / 0.6198 GB Notification: Performance of NFInst.instExpressions: time 0.002348/0.246, allocations: 0.9792 MB / 0.9811 GB, free: 25.36 MB / 0.6198 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.000307/0.2464, allocations: 7.938 kB / 0.9811 GB, free: 25.36 MB / 0.6198 GB Notification: Performance of NFTyping.typeComponents: time 0.000186/0.2466, allocations: 39.66 kB / 0.9812 GB, free: 25.32 MB / 0.6198 GB Notification: Performance of NFTyping.typeBindings: time 0.0002797/0.2469, allocations: 39.81 kB / 0.9812 GB, free: 25.28 MB / 0.6198 GB Notification: Performance of NFTyping.typeClassSections: time 0.0007317/0.2476, allocations: 179.7 kB / 0.9814 GB, free: 25.1 MB / 0.6198 GB Notification: Performance of NFFlatten.flatten: time 0.0006298/0.2483, allocations: 356.1 kB / 0.9817 GB, free: 24.75 MB / 0.6198 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0005916/0.2489, allocations: 344.4 kB / 0.9821 GB, free: 24.42 MB / 0.6198 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0002615/0.2492, allocations: 139.5 kB / 0.9822 GB, free: 24.29 MB / 0.6198 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0002544/0.2494, allocations: 163.2 kB / 0.9823 GB, free: 24.12 MB / 0.6198 GB Notification: Performance of NFPackage.collectConstants: time 5.412e-05/0.2495, allocations: 20 kB / 0.9824 GB, free: 24.11 MB / 0.6198 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0001257/0.2497, allocations: 31.98 kB / 0.9824 GB, free: 24.07 MB / 0.6198 GB Notification: Performance of NFScalarize.scalarize: time 0.0001391/0.2498, allocations: 91.66 kB / 0.9825 GB, free: 23.98 MB / 0.6198 GB Notification: Performance of NFVerifyModel.verify: time 0.0001026/0.2499, allocations: 101.5 kB / 0.9826 GB, free: 23.88 MB / 0.6198 GB Notification: Performance of NFConvertDAE.convert: time 0.0006616/0.2506, allocations: 0.5301 MB / 0.9831 GB, free: 23.35 MB / 0.6198 GB Notification: Performance of FrontEnd - DAE generated: time 3.747e-06/0.2506, allocations: 0 / 0.9831 GB, free: 23.35 MB / 0.6198 GB Notification: Performance of FrontEnd: time 2.254e-06/0.2506, allocations: 0 / 0.9831 GB, free: 23.35 MB / 0.6198 GB Notification: Performance of Transformations before backend: time 8.066e-06/0.2506, allocations: 0 / 0.9831 GB, free: 23.35 MB / 0.6198 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 128 * Number of variables: 128 Notification: Performance of Generate backend data structure: time 0.00139/0.252, allocations: 0.6304 MB / 0.9837 GB, free: 22.67 MB / 0.6198 GB Notification: Performance of prepare preOptimizeDAE: time 5.189e-05/0.2521, allocations: 8.031 kB / 0.9837 GB, free: 22.66 MB / 0.6198 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001467/0.2523, allocations: 94.52 kB / 0.9838 GB, free: 22.56 MB / 0.6198 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.00013/0.2524, allocations: 55.38 kB / 0.9839 GB, free: 22.5 MB / 0.6198 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0004847/0.2529, allocations: 339 kB / 0.9842 GB, free: 22.13 MB / 0.6198 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 6.364e-05/0.253, allocations: 41.31 kB / 0.9842 GB, free: 22.09 MB / 0.6198 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001069/0.2531, allocations: 63.98 kB / 0.9843 GB, free: 22.03 MB / 0.6198 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001413/0.2545, allocations: 0.5617 MB / 0.9848 GB, free: 21.43 MB / 0.6198 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.79e-05/0.2546, allocations: 0 / 0.9848 GB, free: 21.43 MB / 0.6198 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 6.895e-05/0.2547, allocations: 28 kB / 0.9849 GB, free: 21.41 MB / 0.6198 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.222e-05/0.2547, allocations: 24.92 kB / 0.9849 GB, free: 21.38 MB / 0.6198 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001174/0.2559, allocations: 423.7 kB / 0.9853 GB, free: 20.97 MB / 0.6198 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.003194/0.2591, allocations: 1.93 MB / 0.9872 GB, free: 18.96 MB / 0.6198 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0008921/0.2601, allocations: 355.6 kB / 0.9875 GB, free: 18.61 MB / 0.6198 GB Notification: Performance of preOpt evalFunc (simulation): time 7.675e-05/0.2602, allocations: 12 kB / 0.9875 GB, free: 18.59 MB / 0.6198 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0005486/0.2608, allocations: 218.2 kB / 0.9877 GB, free: 18.37 MB / 0.6198 GB Notification: Performance of pre-optimization done (n=46): time 3.547e-06/0.2608, allocations: 0 / 0.9877 GB, free: 18.37 MB / 0.6198 GB Notification: Performance of matching and sorting (n=46): time 0.001368/0.2622, allocations: 485.2 kB / 0.9882 GB, free: 17.89 MB / 0.6198 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.116e-05/0.2622, allocations: 67.14 kB / 0.9883 GB, free: 17.81 MB / 0.6198 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0002931/0.2625, allocations: 237.7 kB / 0.9885 GB, free: 17.56 MB / 0.6198 GB Notification: Performance of collectPreVariables (initialization): time 7.874e-05/0.2626, allocations: 53.62 kB / 0.9885 GB, free: 17.5 MB / 0.6198 GB Notification: Performance of collectInitialEqns (initialization): time 0.000153/0.2628, allocations: 224.6 kB / 0.9887 GB, free: 17.28 MB / 0.6198 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001164/0.2629, allocations: 118.5 kB / 0.9889 GB, free: 17.16 MB / 0.6198 GB Notification: Performance of simplifyInitialFunctions (initialization): time 3.766e-05/0.263, allocations: 16 kB / 0.9889 GB, free: 17.15 MB / 0.6198 GB Notification: Performance of setup shared object (initialization): time 8.675e-05/0.2631, allocations: 338.8 kB / 0.9892 GB, free: 16.81 MB / 0.6198 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0004553/0.2635, allocations: 161.2 kB / 0.9894 GB, free: 16.65 MB / 0.6198 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0005118/0.2641, allocations: 288.7 kB / 0.9896 GB, free: 16.32 MB / 0.6198 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0004534/0.2645, allocations: 166.2 kB / 0.9898 GB, free: 16.16 MB / 0.6198 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.853e-06/0.2646, allocations: 4 kB / 0.9898 GB, free: 16.16 MB / 0.6198 GB Notification: Performance of matching and sorting (n=74) (initialization): time 0.001256/0.2658, allocations: 0.5022 MB / 0.9903 GB, free: 15.64 MB / 0.6198 GB Notification: Performance of prepare postOptimizeDAE: time 2.634e-05/0.2659, allocations: 8 kB / 0.9903 GB, free: 15.64 MB / 0.6198 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.249e-05/0.2659, allocations: 4 kB / 0.9903 GB, free: 15.63 MB / 0.6198 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.789e-05/0.2659, allocations: 4.469 kB / 0.9903 GB, free: 15.63 MB / 0.6198 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004123/0.2664, allocations: 71.83 kB / 0.9904 GB, free: 15.56 MB / 0.6198 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.578e-05/0.2664, allocations: 4 kB / 0.9904 GB, free: 15.55 MB / 0.6198 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0003962/0.2668, allocations: 71.5 kB / 0.9904 GB, free: 15.48 MB / 0.6198 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.486e-05/0.2669, allocations: 20 kB / 0.9905 GB, free: 15.46 MB / 0.6198 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 16 * Number of states: 0 () * Number of discrete variables: 55 ($PRE.con.multiSwitch1.u[1],$PRE.con.multiSwitch1.u[2],$PRE.con.t1.enableFire,$PRE.con.t2.enableFire,$PRE.con.t3.enableFire,$PRE.con.t4.enableFire,con.stateGraphRoot.resume,con.stateGraphRoot.suspend,$whenCondition2,$whenCondition1,con.lessThreshold.y,con.not1.y,con.greaterThreshold.y,con.multiSwitch1.u[1],con.multiSwitch1.u[2],con.multiSwitch1.firstActiveIndex,con.off.active,$PRE.con.off.localActive,con.off.localActive,con.off.inPort[1].set,con.off.outPort[1].reset,$PRE.con.off.newActive,con.off.newActive,$PRE.con.off.oldActive,con.off.oldActive,con.stateGraphRoot.activeSteps,con.alternative.split[2].available,con.t1.condition,con.t1.enableFire,con.t1.fire,$PRE.con.t1.t_start,con.t1.t_start,con.t2.condition,con.t2.enableFire,con.t2.fire,$PRE.con.t2.t_start,con.t2.t_start,$PRE.con.charge.localActive,con.charge.localActive,$PRE.con.charge.newActive,con.charge.newActive,$PRE.con.charge.oldActive,con.charge.oldActive,con.charge.active,$PRE.con.discharge.localActive,con.discharge.localActive,$PRE.con.discharge.newActive,con.discharge.newActive,$PRE.con.discharge.oldActive,con.discharge.oldActive,con.discharge.active,con.t3.condition,con.t3.enableFire,con.t4.condition,con.t4.enableFire) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (74): * Single equations (assignments): 74 * 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 0.0003846/0.2673, allocations: 238.8 kB / 0.9907 GB, free: 15.22 MB / 0.6198 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 7.207e-05/0.2674, allocations: 23.72 kB / 0.9907 GB, free: 15.2 MB / 0.6198 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001108/0.2685, allocations: 427.4 kB / 0.9911 GB, free: 14.77 MB / 0.6198 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.917e-06/0.2685, allocations: 8 kB / 0.9911 GB, free: 14.77 MB / 0.6198 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 7.635e-06/0.2685, allocations: 0 / 0.9911 GB, free: 14.77 MB / 0.6198 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.032e-05/0.2686, allocations: 7.984 kB / 0.9911 GB, free: 14.76 MB / 0.6198 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002232/0.2708, allocations: 1.13 MB / 0.9922 GB, free: 13.56 MB / 0.6198 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.144e-06/0.2709, allocations: 0 / 0.9922 GB, free: 13.56 MB / 0.6198 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002743/0.2711, allocations: 43.91 kB / 0.9923 GB, free: 13.52 MB / 0.6198 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.006e-05/0.2712, allocations: 4 kB / 0.9923 GB, free: 13.51 MB / 0.6198 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.969e-05/0.2712, allocations: 4 kB / 0.9923 GB, free: 13.51 MB / 0.6198 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 9.278e-06/0.2712, allocations: 7.953 kB / 0.9923 GB, free: 13.5 MB / 0.6198 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.374e-06/0.2712, allocations: 0 / 0.9923 GB, free: 13.5 MB / 0.6198 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001006/0.2723, allocations: 0.4919 MB / 0.9928 GB, free: 12.99 MB / 0.6198 GB Notification: Performance of postOpt removeConstants (simulation): time 6.704e-05/0.2724, allocations: 108.7 kB / 0.9929 GB, free: 12.87 MB / 0.6198 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 7.064e-05/0.2724, allocations: 15.98 kB / 0.9929 GB, free: 12.85 MB / 0.6198 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003131/0.2728, allocations: 23.98 kB / 0.9929 GB, free: 12.83 MB / 0.6198 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002246/0.273, allocations: 68.3 kB / 0.993 GB, free: 12.76 MB / 0.6198 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.204e-05/0.2731, allocations: 19.92 kB / 0.993 GB, free: 12.74 MB / 0.6198 GB Notification: Performance of sorting global known variables: time 0.0001452/0.2732, allocations: 144.2 kB / 0.9931 GB, free: 12.6 MB / 0.6198 GB Notification: Performance of sort global known variables: time 9.32e-07/0.2732, allocations: 4 kB / 0.9931 GB, free: 12.6 MB / 0.6198 GB Notification: Performance of remove unused functions: time 0.0006535/0.2739, allocations: 111.6 kB / 0.9932 GB, free: 12.49 MB / 0.6198 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 42 (con.t2.enableFire,con.t1.enableFire,con.discharge.active,con.discharge.localActive,con.charge.active,con.charge.localActive,con.off.localActive,$cse1,$cse2,$cse3,$cse4,$cse5,$cse6,$whenCondition2,$whenCondition1,con.lessThreshold.y,con.not1.y,con.greaterThreshold.y,con.multiSwitch1.u[1],con.multiSwitch1.u[2],con.multiSwitch1.firstActiveIndex,con.off.active,con.off.inPort[1].set,con.off.outPort[1].reset,con.off.newActive,con.off.oldActive,con.stateGraphRoot.activeSteps,con.alternative.split[2].available,con.t1.condition,con.t1.fire,con.t1.t_start,con.t2.condition,con.t2.fire,con.t2.t_start,con.charge.newActive,con.charge.oldActive,con.discharge.newActive,con.discharge.oldActive,con.t3.condition,con.t3.enableFire,con.t4.condition,con.t4.enableFire) * Number of discrete states: 3 (con.off.newActive,con.charge.newActive,con.discharge.newActive) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (52): * Single equations (assignments): 47 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 5 * 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 0.001385/0.2753, allocations: 1.076 MB / 0.9943 GB, free: 11.39 MB / 0.6198 GB Notification: Performance of simCode: created initialization part: time 0.001123/0.2765, allocations: 433.5 kB / 0.9947 GB, free: 10.96 MB / 0.6198 GB Notification: Performance of simCode: created event and clocks part: time 3.357e-06/0.2765, allocations: 4.938 kB / 0.9947 GB, free: 10.96 MB / 0.6198 GB Notification: Performance of simCode: created simulation system equations: time 0.0005092/0.277, allocations: 218.4 kB / 0.9949 GB, free: 10.75 MB / 0.6198 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0004396/0.2775, allocations: 43.92 kB / 0.995 GB, free: 10.71 MB / 0.6198 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.004925/0.2824, allocations: 4.282 MB / 0.9991 GB, free: 6.301 MB / 0.6198 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0003277/0.2828, allocations: 0.8311 MB / 1 GB, free: 5.445 MB / 0.6198 GB Notification: Performance of simCode: alias equations: time 0.000372/0.2832, allocations: 63.25 kB / 1 GB, free: 5.387 MB / 0.6198 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0003244/0.2835, allocations: 144.4 kB / 1 GB, free: 5.246 MB / 0.6198 GB Notification: Performance of SimCode: time 1.072e-06/0.2835, allocations: 0 / 1 GB, free: 5.246 MB / 0.6198 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.04036/0.3239, allocations: 7.137 MB / 1.007 GB, free: 14.3 MB / 0.6355 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0003793/0.3244, allocations: 214 kB / 1.007 GB, free: 14.05 MB / 0.6355 GB Notification: Performance of buildModelFMU: Generate platform static: time 3.193/3.517, allocations: 5.25 kB / 1.007 GB, free: 14.05 MB / 0.6355 GB (rm -f Buildings_8.0.0_Buildings.Examples.ChillerPlant.BaseClasses.Controls.Examples.BatteryControl.pipe ; mkfifo Buildings_8.0.0_Buildings.Examples.ChillerPlant.BaseClasses.Controls.Examples.BatteryControl.pipe ; head -c 1048576 < Buildings_8.0.0_Buildings.Examples.ChillerPlant.BaseClasses.Controls.Examples.BatteryControl.pipe >> ../files/Buildings_8.0.0_Buildings.Examples.ChillerPlant.BaseClasses.Controls.Examples.BatteryControl.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_Buildings_8_0_0_Buildings_Examples_ChillerPlant_BaseClasses_Controls_Examples_BatteryControl_fmu --startTime=0 --stopTime=604800 --timeout=50 --tolerance=1e-06 Buildings_8_0_0_Buildings_Examples_ChillerPlant_BaseClasses_Controls_Examples_BatteryControl.fmu > Buildings_8.0.0_Buildings.Examples.ChillerPlant.BaseClasses.Controls.Examples.BatteryControl.pipe 2>&1)