Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8.0.0_Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.SingleZone.VAV.Validation.CoolingCoil.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.Controls.OBC.ASHRAE.G36_PR1.AHUs.SingleZone.VAV.Validation.CoolingCoil,fileNamePrefix="Buildings_8_0_0_Buildings_Controls_OBC_ASHRAE_G36_PR1_AHUs_SingleZone_VAV_Validation_CoolingCoil",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.SingleZone.VAV.Validation.CoolingCoil,fileNamePrefix="Buildings_8_0_0_Buildings_Controls_OBC_ASHRAE_G36_PR1_AHUs_SingleZone_VAV_Validation_CoolingCoil",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 1.399/1.399, allocations: 287.4 MB / 302.6 MB, free: 8.219 MB / 234.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.0008482/0.0008482, allocations: 189.1 kB / 371.1 MB, free: 10.79 MB / 298.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.099/1.099, allocations: 205.4 MB / 0.6298 GB, free: 10.54 MB / 458.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.0006538/0.0006538, allocations: 99.78 kB / 0.7431 GB, free: 6.523 MB / 0.5573 GB Notification: Performance of FrontEnd - loaded program: time 0.0003087/0.0003088, allocations: 10.59 kB / 0.8662 GB, free: 140.5 MB / 0.6198 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1362/0.1366, allocations: 115.3 MB / 0.9788 GB, free: 28.04 MB / 0.6198 GB Notification: Performance of NFInst.instantiate(Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.SingleZone.VAV.Validation.CoolingCoil): time 0.001176/0.1378, allocations: 1.227 MB / 0.98 GB, free: 26.8 MB / 0.6198 GB Notification: Performance of NFInst.instExpressions: time 0.00137/0.1392, allocations: 1.433 MB / 0.9814 GB, free: 25.36 MB / 0.6198 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0001594/0.1393, allocations: 11.94 kB / 0.9814 GB, free: 25.34 MB / 0.6198 GB Notification: Performance of NFTyping.typeComponents: time 0.0001161/0.1395, allocations: 27.72 kB / 0.9814 GB, free: 25.32 MB / 0.6198 GB Notification: Performance of NFTyping.typeBindings: time 9.566e-05/0.1396, allocations: 35.72 kB / 0.9815 GB, free: 25.28 MB / 0.6198 GB Notification: Performance of NFTyping.typeClassSections: time 0.0004133/0.14, allocations: 178.7 kB / 0.9816 GB, free: 25.11 MB / 0.6198 GB Notification: Performance of NFFlatten.flatten: time 0.0002552/0.1402, allocations: 372.2 kB / 0.982 GB, free: 24.75 MB / 0.6198 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0001891/0.1404, allocations: 148.6 kB / 0.9821 GB, free: 24.61 MB / 0.6198 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0001029/0.1406, allocations: 103.5 kB / 0.9822 GB, free: 24.5 MB / 0.6198 GB Notification: Performance of NFSimplifyModel.simplify: time 9.833e-05/0.1407, allocations: 107.3 kB / 0.9823 GB, free: 24.4 MB / 0.6198 GB Notification: Performance of NFPackage.collectConstants: time 3.198e-05/0.1407, allocations: 15.94 kB / 0.9823 GB, free: 24.38 MB / 0.6198 GB Notification: Performance of NFFlatten.collectFunctions: time 6.286e-05/0.1408, allocations: 27.98 kB / 0.9824 GB, free: 24.36 MB / 0.6198 GB Notification: Performance of NFScalarize.scalarize: time 2.817e-05/0.1408, allocations: 35.78 kB / 0.9824 GB, free: 24.32 MB / 0.6198 GB Notification: Performance of NFVerifyModel.verify: time 4.476e-05/0.1408, allocations: 69.58 kB / 0.9825 GB, free: 24.25 MB / 0.6198 GB Notification: Performance of NFConvertDAE.convert: time 0.0002323/0.1411, allocations: 419 kB / 0.9829 GB, free: 23.84 MB / 0.6198 GB Notification: Performance of FrontEnd - DAE generated: time 3.626e-06/0.1411, allocations: 0 / 0.9829 GB, free: 23.84 MB / 0.6198 GB Notification: Performance of FrontEnd: time 1.122e-06/0.1411, allocations: 0 / 0.9829 GB, free: 23.84 MB / 0.6198 GB Notification: Performance of Transformations before backend: time 7.394e-06/0.1411, allocations: 0 / 0.9829 GB, free: 23.84 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: 54 * Number of variables: 54 Notification: Performance of Generate backend data structure: time 0.0006608/0.1418, allocations: 0.5863 MB / 0.9834 GB, free: 23.19 MB / 0.6198 GB Notification: Performance of prepare preOptimizeDAE: time 2.826e-05/0.1418, allocations: 11.97 kB / 0.9835 GB, free: 23.18 MB / 0.6198 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 3.964e-05/0.1419, allocations: 54.73 kB / 0.9835 GB, free: 23.12 MB / 0.6198 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 5.068e-05/0.1419, allocations: 32.56 kB / 0.9835 GB, free: 23.09 MB / 0.6198 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0003706/0.1423, allocations: 358.9 kB / 0.9839 GB, free: 22.69 MB / 0.6198 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 1.842e-05/0.1423, allocations: 12.81 kB / 0.9839 GB, free: 22.68 MB / 0.6198 GB Notification: Performance of preOpt expandDerOperator (simulation): time 3.361e-05/0.1424, allocations: 32.31 kB / 0.9839 GB, free: 22.65 MB / 0.6198 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0003744/0.1427, allocations: 258.4 kB / 0.9842 GB, free: 22.39 MB / 0.6198 GB Notification: Performance of preOpt findStateOrder (simulation): time 8.315e-06/0.1428, allocations: 3.938 kB / 0.9842 GB, free: 22.38 MB / 0.6198 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 1.691e-05/0.1428, allocations: 8 kB / 0.9842 GB, free: 22.38 MB / 0.6198 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.601e-06/0.1428, allocations: 8 kB / 0.9842 GB, free: 22.37 MB / 0.6198 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0003799/0.1432, allocations: 197.6 kB / 0.9844 GB, free: 22.18 MB / 0.6198 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0008634/0.144, allocations: 0.9489 MB / 0.9853 GB, free: 21.16 MB / 0.6198 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0003691/0.1444, allocations: 186.4 kB / 0.9855 GB, free: 20.97 MB / 0.6198 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0001596/0.1446, allocations: 76.81 kB / 0.9856 GB, free: 20.89 MB / 0.6198 GB Notification: Performance of preOpt evalFunc (simulation): time 1.858e-05/0.1446, allocations: 4 kB / 0.9856 GB, free: 20.89 MB / 0.6198 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0002416/0.1449, allocations: 132.6 kB / 0.9857 GB, free: 20.75 MB / 0.6198 GB Notification: Performance of pre-optimization done (n=14): time 1.423e-06/0.1449, allocations: 0 / 0.9857 GB, free: 20.75 MB / 0.6198 GB Notification: Performance of matching and sorting (n=14): time 0.0005379/0.1454, allocations: 273.8 kB / 0.986 GB, free: 20.47 MB / 0.6198 GB Notification: Performance of inlineWhenForInitialization (initialization): time 2.613e-05/0.1455, allocations: 81.11 kB / 0.986 GB, free: 20.38 MB / 0.6198 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0001919/0.1457, allocations: 283 kB / 0.9863 GB, free: 20.09 MB / 0.6198 GB Notification: Performance of collectPreVariables (initialization): time 1.843e-05/0.1457, allocations: 29.7 kB / 0.9863 GB, free: 20.06 MB / 0.6198 GB Notification: Performance of collectInitialEqns (initialization): time 7.86e-05/0.1458, allocations: 188 kB / 0.9865 GB, free: 19.87 MB / 0.6198 GB Notification: Performance of collectInitialBindings (initialization): time 2.139e-05/0.1458, allocations: 43.59 kB / 0.9865 GB, free: 19.83 MB / 0.6198 GB Notification: Performance of simplifyInitialFunctions (initialization): time 1.363e-05/0.1458, allocations: 4 kB / 0.9866 GB, free: 19.82 MB / 0.6198 GB Notification: Performance of setup shared object (initialization): time 4.137e-05/0.1459, allocations: 334.8 kB / 0.9869 GB, free: 19.49 MB / 0.6198 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.000207/0.1461, allocations: 91.95 kB / 0.987 GB, free: 19.4 MB / 0.6198 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.000214/0.1463, allocations: 165.5 kB / 0.9871 GB, free: 19.21 MB / 0.6198 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0003469/0.1467, allocations: 235.5 kB / 0.9873 GB, free: 18.95 MB / 0.6198 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.743e-06/0.1467, allocations: 4 kB / 0.9873 GB, free: 18.95 MB / 0.6198 GB Notification: Performance of matching and sorting (n=22) (initialization): time 0.0005131/0.1472, allocations: 326.8 kB / 0.9877 GB, free: 18.62 MB / 0.6198 GB Notification: Performance of prepare postOptimizeDAE: time 5.008e-05/0.1472, allocations: 164 kB / 0.9878 GB, free: 18.43 MB / 0.6198 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.579e-06/0.1473, allocations: 4 kB / 0.9878 GB, free: 18.42 MB / 0.6198 GB Notification: Performance of postOpt tearingSystem (initialization): time 9.428e-06/0.1473, allocations: 0 / 0.9878 GB, free: 18.42 MB / 0.6198 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001463/0.1474, allocations: 47.91 kB / 0.9879 GB, free: 18.38 MB / 0.6198 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 4.598e-06/0.1474, allocations: 3.938 kB / 0.9879 GB, free: 18.37 MB / 0.6198 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002714/0.1477, allocations: 79.72 kB / 0.9879 GB, free: 18.29 MB / 0.6198 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.205e-05/0.1477, allocations: 12 kB / 0.988 GB, free: 18.28 MB / 0.6198 GB Notification: Performance of prepare postOptimizeDAE: time 4.689e-06/0.1477, allocations: 4 kB / 0.988 GB, free: 18.28 MB / 0.6198 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.0004223/0.1482, allocations: 271.6 kB / 0.9882 GB, free: 18.01 MB / 0.6198 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.224e-06/0.1482, allocations: 0 / 0.9882 GB, free: 18.01 MB / 0.6198 GB Notification: Performance of postOpt tearingSystem (initialization): time 3.146e-06/0.1482, allocations: 4 kB / 0.9882 GB, free: 18 MB / 0.6198 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001113/0.1483, allocations: 35.92 kB / 0.9883 GB, free: 17.97 MB / 0.6198 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.885e-06/0.1483, allocations: 3.984 kB / 0.9883 GB, free: 17.96 MB / 0.6198 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002406/0.1486, allocations: 67.7 kB / 0.9883 GB, free: 17.9 MB / 0.6198 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 1.795e-05/0.1486, allocations: 12 kB / 0.9883 GB, free: 17.89 MB / 0.6198 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 7 * Number of states: 0 () * Number of discrete variables: 8 ($whenCondition1,$whenCondition2,cooCoi.conInt.y,cooCoi.intEqu.y,cooCoi.and2.y,$PRE.zonSta.booPul.y,zonSta.booPul.y,reaToInt.y) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (20): * Single equations (assignments): 19 * Array equations: 0 * Algorithm blocks: 1 * 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 0.0001029/0.1487, allocations: 229 kB / 0.9886 GB, free: 17.65 MB / 0.6198 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 2.32e-05/0.1487, allocations: 23.7 kB / 0.9886 GB, free: 17.63 MB / 0.6198 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 4.042e-05/0.1488, allocations: 25.92 kB / 0.9886 GB, free: 17.6 MB / 0.6198 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.805e-06/0.1488, allocations: 4 kB / 0.9886 GB, free: 17.6 MB / 0.6198 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.037e-06/0.1488, allocations: 15.92 kB / 0.9886 GB, free: 17.58 MB / 0.6198 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.475e-06/0.1488, allocations: 0 / 0.9886 GB, free: 17.58 MB / 0.6198 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0001748/0.149, allocations: 313.4 kB / 0.9889 GB, free: 17.23 MB / 0.6198 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.052e-06/0.149, allocations: 0 / 0.9889 GB, free: 17.23 MB / 0.6198 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001185/0.1491, allocations: 27.97 kB / 0.9889 GB, free: 17.2 MB / 0.6198 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.663e-06/0.1491, allocations: 0 / 0.9889 GB, free: 17.2 MB / 0.6198 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.085e-05/0.1491, allocations: 8 kB / 0.989 GB, free: 17.19 MB / 0.6198 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.162e-06/0.1491, allocations: 0 / 0.989 GB, free: 17.19 MB / 0.6198 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 6.81e-07/0.1491, allocations: 0 / 0.989 GB, free: 17.19 MB / 0.6198 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0003487/0.1495, allocations: 234 kB / 0.9892 GB, free: 16.95 MB / 0.6198 GB Notification: Performance of postOpt removeConstants (simulation): time 3.384e-05/0.1495, allocations: 104.8 kB / 0.9893 GB, free: 16.82 MB / 0.6198 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 2.611e-05/0.1496, allocations: 4 kB / 0.9893 GB, free: 16.82 MB / 0.6198 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001091/0.1497, allocations: 15.98 kB / 0.9893 GB, free: 16.8 MB / 0.6198 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 4.356e-05/0.1497, allocations: 15.98 kB / 0.9893 GB, free: 16.79 MB / 0.6198 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 9.568e-06/0.1498, allocations: 7.984 kB / 0.9893 GB, free: 16.78 MB / 0.6198 GB Notification: Performance of sorting global known variables: time 0.0001231/0.1499, allocations: 198 kB / 0.9895 GB, free: 16.59 MB / 0.6198 GB Notification: Performance of sort global known variables: time 1.2e-07/0.1499, allocations: 4 kB / 0.9895 GB, free: 16.59 MB / 0.6198 GB Notification: Performance of remove unused functions: time 0.0003006/0.1502, allocations: 99.62 kB / 0.9896 GB, free: 16.49 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: 6 ($whenCondition1,$whenCondition2,cooCoi.intEqu.y,cooCoi.and2.y,zonSta.booPul.y,reaToInt.y) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (14): * Single equations (assignments): 13 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 1 * 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 0.0004955/0.1507, allocations: 0.7788 MB / 0.9904 GB, free: 15.68 MB / 0.6198 GB Notification: Performance of simCode: created initialization part: time 0.0006319/0.1513, allocations: 456.5 kB / 0.9908 GB, free: 15.21 MB / 0.6198 GB Notification: Performance of simCode: created event and clocks part: time 1.694e-06/0.1514, allocations: 8.062 kB / 0.9908 GB, free: 15.2 MB / 0.6198 GB Notification: Performance of simCode: created simulation system equations: time 0.0001685/0.1515, allocations: 83.89 kB / 0.9909 GB, free: 15.12 MB / 0.6198 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0002968/0.1518, allocations: 66.08 kB / 0.991 GB, free: 15.05 MB / 0.6198 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.00192/0.1538, allocations: 1.591 MB / 0.9925 GB, free: 13.39 MB / 0.6198 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0001142/0.1539, allocations: 0.7596 MB / 0.9932 GB, free: 12.61 MB / 0.6198 GB Notification: Performance of simCode: alias equations: time 0.000129/0.154, allocations: 30.28 kB / 0.9933 GB, free: 12.58 MB / 0.6198 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 9.421e-05/0.1541, allocations: 91.39 kB / 0.9934 GB, free: 12.49 MB / 0.6198 GB Notification: Performance of SimCode: time 2.4e-07/0.1541, allocations: 4 kB / 0.9934 GB, free: 12.48 MB / 0.6198 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.2272/0.3813, allocations: 6.101 MB / 0.9993 GB, free: 6.621 MB / 0.6198 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0001289/0.3814, allocations: 222.6 kB / 0.9995 GB, free: 6.383 MB / 0.6198 GB Notification: Performance of buildModelFMU: Generate platform static: time 1.839/2.221, allocations: 0 / 0.9995 GB, free: 6.383 MB / 0.6198 GB (rm -f Buildings_8.0.0_Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.SingleZone.VAV.Validation.CoolingCoil.pipe ; mkfifo Buildings_8.0.0_Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.SingleZone.VAV.Validation.CoolingCoil.pipe ; head -c 1048576 < Buildings_8.0.0_Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.SingleZone.VAV.Validation.CoolingCoil.pipe >> ../files/Buildings_8.0.0_Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.SingleZone.VAV.Validation.CoolingCoil.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_Buildings_8_0_0_Buildings_Controls_OBC_ASHRAE_G36_PR1_AHUs_SingleZone_VAV_Validation_CoolingCoil_fmu --startTime=0 --stopTime=28000 --timeout=50 --tolerance=1e-06 Buildings_8_0_0_Buildings_Controls_OBC_ASHRAE_G36_PR1_AHUs_SingleZone_VAV_Validation_CoolingCoil.fmu > Buildings_8.0.0_Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.SingleZone.VAV.Validation.CoolingCoil.pipe 2>&1)