Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr BuildingSystems_BuildingSystems.Fluid.HeatPumps.ModularReversible.Controls.Safety.Examples.OperationalEnvelope.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.Fluid.HeatPumps.ModularReversible.Controls.Safety.Examples.OperationalEnvelope,tolerance=1e-08,outputFormat="empty",numberOfIntervals=200,variableFilter="",fileNamePrefix="BuildingSystems_BuildingSystems.Fluid.HeatPumps.ModularReversible.Controls.Safety.Examples.OperationalEnvelope") translateModel(BuildingSystems.Fluid.HeatPumps.ModularReversible.Controls.Safety.Examples.OperationalEnvelope,tolerance=1e-08,outputFormat="empty",numberOfIntervals=200,variableFilter="",fileNamePrefix="BuildingSystems_BuildingSystems.Fluid.HeatPumps.ModularReversible.Controls.Safety.Examples.OperationalEnvelope") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001702/0.001702, allocations: 105.8 kB / 17.08 MB, free: 5.02 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001829/0.001829, allocations: 199 kB / 18.05 MB, free: 4.336 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.42/1.42, allocations: 225.6 MB / 244.5 MB, free: 13.77 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-master/package.mo): time 0.002525/0.002525, allocations: 291 kB / 297.6 MB, free: 11.3 MB / 238.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo): time 1.258/1.258, allocations: 180.9 MB / 0.519 GB, free: 14.29 MB / 382.1 MB Notification: Performance of FrontEnd - loaded program: time 0.002715/0.002715, allocations: 97.27 kB / 0.7167 GB, free: 39.82 MB / 0.545 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1706/0.1733, allocations: 94.16 MB / 0.8086 GB, free: 6.27 MB / 0.5606 GB Notification: Performance of NFInst.instantiate(BuildingSystems.Fluid.HeatPumps.ModularReversible.Controls.Safety.Examples.OperationalEnvelope): time 0.005019/0.1783, allocations: 3.207 MB / 0.8118 GB, free: 3.152 MB / 0.5606 GB Notification: Performance of NFInst.instExpressions: time 0.002261/0.1806, allocations: 1.353 MB / 0.8131 GB, free: 1.793 MB / 0.5606 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0002155/0.1808, allocations: 15.94 kB / 0.8131 GB, free: 1.777 MB / 0.5606 GB Notification: Performance of NFTyping.typeComponents: time 0.0003521/0.1811, allocations: 103.1 kB / 0.8132 GB, free: 1.676 MB / 0.5606 GB Notification: Performance of NFTyping.typeBindings: time 0.000562/0.1817, allocations: 266.5 kB / 0.8135 GB, free: 1.414 MB / 0.5606 GB Notification: Performance of NFTyping.typeClassSections: time 0.000635/0.1823, allocations: 354.5 kB / 0.8138 GB, free: 1.07 MB / 0.5606 GB Notification: Performance of NFFlatten.flatten: time 0.0008496/0.1832, allocations: 0.8421 MB / 0.8146 GB, free: 228 kB / 0.5606 GB Notification: Performance of NFFlatten.resolveConnections: time 0.000414/0.1836, allocations: 240.4 kB / 0.8148 GB, free: 15.98 MB / 0.5762 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0003328/0.1839, allocations: 334.8 kB / 0.8152 GB, free: 15.65 MB / 0.5762 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0005165/0.1845, allocations: 438.2 kB / 0.8156 GB, free: 15.22 MB / 0.5762 GB Notification: Performance of NFPackage.collectConstants: time 0.0001206/0.1846, allocations: 88 kB / 0.8157 GB, free: 15.14 MB / 0.5762 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0002002/0.1848, allocations: 116 kB / 0.8158 GB, free: 15.02 MB / 0.5762 GB Notification: Performance of NFScalarize.scalarize: time 0.0002562/0.185, allocations: 259.3 kB / 0.816 GB, free: 14.77 MB / 0.5762 GB Notification: Performance of NFVerifyModel.verify: time 0.0003402/0.1854, allocations: 390 kB / 0.8164 GB, free: 14.39 MB / 0.5762 GB Notification: Performance of NFConvertDAE.convert: time 0.001172/0.1865, allocations: 1.156 MB / 0.8175 GB, free: 13.23 MB / 0.5762 GB Notification: Performance of FrontEnd - DAE generated: time 4.609e-06/0.1865, allocations: 0 / 0.8175 GB, free: 13.23 MB / 0.5762 GB Notification: Performance of FrontEnd: time 1.432e-06/0.1865, allocations: 0 / 0.8175 GB, free: 13.23 MB / 0.5762 GB Notification: Performance of Transformations before backend: time 9.758e-06/0.1866, allocations: 0 / 0.8175 GB, free: 13.23 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: 99 * Number of variables: 99 Notification: Performance of Generate backend data structure: time 0.002282/0.1888, allocations: 1.203 MB / 0.8187 GB, free: 11.96 MB / 0.5762 GB Notification: Performance of prepare preOptimizeDAE: time 3.635e-05/0.1889, allocations: 8.031 kB / 0.8187 GB, free: 11.95 MB / 0.5762 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0001503/0.189, allocations: 88.42 kB / 0.8188 GB, free: 11.87 MB / 0.5762 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001218/0.1902, allocations: 0.6921 MB / 0.8195 GB, free: 11.13 MB / 0.5762 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.722e-05/0.1903, allocations: 33.36 kB / 0.8195 GB, free: 11.1 MB / 0.5762 GB Notification: Performance of preOpt expandDerOperator (simulation): time 7.331e-05/0.1904, allocations: 52.12 kB / 0.8195 GB, free: 11.05 MB / 0.5762 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0009986/0.1914, allocations: 0.507 MB / 0.82 GB, free: 10.51 MB / 0.5762 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.336e-05/0.1914, allocations: 0 / 0.82 GB, free: 10.51 MB / 0.5762 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 4.484e-05/0.1914, allocations: 20 kB / 0.8201 GB, free: 10.49 MB / 0.5762 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.303e-05/0.1914, allocations: 8 kB / 0.8201 GB, free: 10.48 MB / 0.5762 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0009886/0.1924, allocations: 379.8 kB / 0.8204 GB, free: 10.11 MB / 0.5762 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.002239/0.1947, allocations: 1.379 MB / 0.8218 GB, free: 8.684 MB / 0.5762 GB Notification: Performance of preOpt comSubExp (simulation): time 0.000877/0.1955, allocations: 309.1 kB / 0.8221 GB, free: 8.375 MB / 0.5762 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0004362/0.196, allocations: 160.7 kB / 0.8222 GB, free: 8.219 MB / 0.5762 GB Notification: Performance of preOpt evalFunc (simulation): time 4.304e-05/0.196, allocations: 8.172 kB / 0.8222 GB, free: 8.211 MB / 0.5762 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0006377/0.1966, allocations: 278.2 kB / 0.8225 GB, free: 7.922 MB / 0.5762 GB Notification: Performance of pre-optimization done (n=31): time 1.473e-06/0.1966, allocations: 0 / 0.8225 GB, free: 7.922 MB / 0.5762 GB Notification: Performance of matching and sorting (n=31): time 0.001476/0.1981, allocations: 0.5183 MB / 0.823 GB, free: 7.398 MB / 0.5762 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001063/0.1982, allocations: 166.2 kB / 0.8232 GB, free: 7.199 MB / 0.5762 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0009712/0.1992, allocations: 0.793 MB / 0.8239 GB, free: 6.398 MB / 0.5762 GB Notification: Performance of collectPreVariables (initialization): time 5.866e-05/0.1993, allocations: 45.7 kB / 0.824 GB, free: 6.348 MB / 0.5762 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002752/0.1995, allocations: 328.7 kB / 0.8243 GB, free: 6.02 MB / 0.5762 GB Notification: Performance of collectInitialBindings (initialization): time 8.223e-05/0.1996, allocations: 91.34 kB / 0.8244 GB, free: 5.93 MB / 0.5762 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001434/0.1998, allocations: 86.06 kB / 0.8245 GB, free: 5.84 MB / 0.5762 GB Notification: Performance of setup shared object (initialization): time 0.0001927/0.2, allocations: 378.8 kB / 0.8248 GB, free: 5.461 MB / 0.5762 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0004677/0.2004, allocations: 160.7 kB / 0.825 GB, free: 5.305 MB / 0.5762 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0005182/0.2009, allocations: 240.2 kB / 0.8252 GB, free: 5.039 MB / 0.5762 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0008614/0.2018, allocations: 385.6 kB / 0.8256 GB, free: 4.629 MB / 0.5762 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.776e-06/0.2018, allocations: 4 kB / 0.8256 GB, free: 4.625 MB / 0.5762 GB Notification: Performance of matching and sorting (n=48) (initialization): time 0.001161/0.203, allocations: 0.5368 MB / 0.8261 GB, free: 4.07 MB / 0.5762 GB Notification: Performance of prepare postOptimizeDAE: time 5.503e-05/0.203, allocations: 71.58 kB / 0.8262 GB, free: 3.988 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.501e-06/0.203, allocations: 0 / 0.8262 GB, free: 3.988 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.902e-05/0.203, allocations: 7.938 kB / 0.8262 GB, free: 3.98 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002826/0.2033, allocations: 51.89 kB / 0.8262 GB, free: 3.93 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.172e-05/0.2033, allocations: 7.938 kB / 0.8262 GB, free: 3.922 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004481/0.2038, allocations: 71.72 kB / 0.8263 GB, free: 3.852 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.115e-05/0.2038, allocations: 12 kB / 0.8263 GB, free: 3.84 MB / 0.5762 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 7 * Number of states: 0 () * Number of discrete variables: 34 (opeEnv.disErr.y,$PRE.opeEnv.disErr.y,TEvaInEmu.count,$PRE.TEvaInEmu.count,TEvaInEmu.T_start,$PRE.TEvaInEmu.T_start,TConOutEmu.count,$PRE.TConOutEmu.count,TConOutEmu.T_start,$PRE.TConOutEmu.T_start,opeEnv.bouMapCoo.hysBou.y,$PRE.opeEnv.bouMapCoo.hysBou.y,opeEnv.bouMapCoo.hysRig.y,$PRE.opeEnv.bouMapCoo.hysRig.y,opeEnv.bouMapCoo.hysLef.y,$PRE.opeEnv.bouMapCoo.hysLef.y,opeEnv.bouMapCoo.noErr,opeEnv.bouMapHea.hysBou.y,$PRE.opeEnv.bouMapHea.hysBou.y,opeEnv.bouMapHea.hysRig.y,$PRE.opeEnv.bouMapHea.hysRig.y,opeEnv.bouMapHea.hysLef.y,$PRE.opeEnv.bouMapHea.hysLef.y,opeEnv.bouMapHea.noErr,opeEnv.booPasThr.y,hys.y,$PRE.hys.y,sigBus.hea,$whenCondition1,$whenCondition2,$whenCondition3,opeEnv.intConOne.y,opeEnv.disErr.local_set,opeEnv.disErr.local_reset) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (46): * Single equations (assignments): 44 * Array equations: 0 * Algorithm blocks: 2 * 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 0.0002891/0.2041, allocations: 249.8 kB / 0.8266 GB, free: 3.586 MB / 0.5762 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 9.665e-05/0.2042, allocations: 67.58 kB / 0.8266 GB, free: 3.52 MB / 0.5762 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.00109/0.2053, allocations: 439.7 kB / 0.827 GB, free: 3.078 MB / 0.5762 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.933e-06/0.2053, allocations: 7.938 kB / 0.827 GB, free: 3.07 MB / 0.5762 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.779e-06/0.2053, allocations: 3.938 kB / 0.827 GB, free: 3.066 MB / 0.5762 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.281e-06/0.2053, allocations: 7.922 kB / 0.8271 GB, free: 3.059 MB / 0.5762 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001848/0.2072, allocations: 1.158 MB / 0.8282 GB, free: 1.844 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.884e-06/0.2072, allocations: 0 / 0.8282 GB, free: 1.844 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002233/0.2074, allocations: 51.89 kB / 0.8282 GB, free: 1.793 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (simulation): time 2.394e-06/0.2074, allocations: 0 / 0.8282 GB, free: 1.793 MB / 0.5762 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.081e-05/0.2074, allocations: 11.98 kB / 0.8282 GB, free: 1.781 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 2.274e-06/0.2074, allocations: 0 / 0.8282 GB, free: 1.781 MB / 0.5762 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.909e-06/0.2074, allocations: 4 kB / 0.8283 GB, free: 1.777 MB / 0.5762 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001076/0.2085, allocations: 0.5731 MB / 0.8288 GB, free: 1.188 MB / 0.5762 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0002003/0.2087, allocations: 160.6 kB / 0.829 GB, free: 1.012 MB / 0.5762 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 8.764e-05/0.2088, allocations: 20 kB / 0.829 GB, free: 0.9922 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0004455/0.2092, allocations: 43.94 kB / 0.829 GB, free: 0.9492 MB / 0.5762 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001709/0.2094, allocations: 79.77 kB / 0.8291 GB, free: 0.8711 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 3.302e-05/0.2094, allocations: 15.98 kB / 0.8291 GB, free: 0.8555 MB / 0.5762 GB Notification: Performance of sorting global known variables: time 0.0006665/0.2101, allocations: 0.5498 MB / 0.8297 GB, free: 316 kB / 0.5762 GB Notification: Performance of sort global known variables: time 9e-08/0.2101, allocations: 0 / 0.8297 GB, free: 316 kB / 0.5762 GB Notification: Performance of remove unused functions: time 0.0004817/0.2106, allocations: 131.7 kB / 0.8298 GB, free: 184 kB / 0.5762 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 2 * Number of states: 0 () * Number of discrete variables: 21 (opeEnv.booPasThr.y,opeEnv.bouMapHea.noErr,opeEnv.bouMapCoo.noErr,$cse1,$cse2,$whenCondition3,$whenCondition2,$whenCondition1,sigBus.hea,hys.y,opeEnv.disErr.y,opeEnv.bouMapHea.hysLef.y,opeEnv.bouMapHea.hysRig.y,opeEnv.bouMapHea.hysBou.y,opeEnv.bouMapCoo.hysLef.y,opeEnv.bouMapCoo.hysRig.y,opeEnv.bouMapCoo.hysBou.y,TConOutEmu.T_start,TConOutEmu.count,TEvaInEmu.T_start,TEvaInEmu.count) * Number of discrete states: 10 (TEvaInEmu.count,TConOutEmu.count,opeEnv.bouMapCoo.hysLef.y,opeEnv.bouMapCoo.hysRig.y,opeEnv.bouMapHea.hysLef.y,opeEnv.bouMapHea.hysRig.y,opeEnv.bouMapCoo.hysBou.y,opeEnv.bouMapHea.hysBou.y,hys.y,opeEnv.disErr.y) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (33): * Single equations (assignments): 28 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 5 * 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 0.001451/0.212, allocations: 389.2 kB / 0.8301 GB, free: 15.92 MB / 0.5919 GB Notification: Performance of simCode: created initialization part: time 0.001197/0.2132, allocations: 471.6 kB / 0.8306 GB, free: 15.44 MB / 0.5919 GB Notification: Performance of simCode: created event and clocks part: time 3.116e-06/0.2132, allocations: 0 / 0.8306 GB, free: 15.44 MB / 0.5919 GB Notification: Performance of simCode: created simulation system equations: time 0.0005148/0.2138, allocations: 192.2 kB / 0.8308 GB, free: 15.25 MB / 0.5919 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0009232/0.2147, allocations: 170.5 kB / 0.8309 GB, free: 15.09 MB / 0.5919 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001943/0.2166, allocations: 1.077 MB / 0.832 GB, free: 13.98 MB / 0.5919 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005367/0.2172, allocations: 0.9068 MB / 0.8329 GB, free: 13.05 MB / 0.5919 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001909/0.2174, allocations: 59.41 kB / 0.8329 GB, free: 12.99 MB / 0.5919 GB Notification: Performance of SimCode: time 2.9e-07/0.2174, allocations: 0 / 0.8329 GB, free: 12.99 MB / 0.5919 GB Notification: Performance of Templates: time 0.01406/0.2314, allocations: 9.394 MB / 0.8421 GB, free: 3.66 MB / 0.5919 GB make -j1 -f BuildingSystems_BuildingSystems.Fluid.HeatPumps.ModularReversible.Controls.Safety.Examples.OperationalEnvelope.makefile (rm -f BuildingSystems_BuildingSystems.Fluid.HeatPumps.ModularReversible.Controls.Safety.Examples.OperationalEnvelope.pipe ; mkfifo BuildingSystems_BuildingSystems.Fluid.HeatPumps.ModularReversible.Controls.Safety.Examples.OperationalEnvelope.pipe ; head -c 1048576 < BuildingSystems_BuildingSystems.Fluid.HeatPumps.ModularReversible.Controls.Safety.Examples.OperationalEnvelope.pipe >> ../files/BuildingSystems_BuildingSystems.Fluid.HeatPumps.ModularReversible.Controls.Safety.Examples.OperationalEnvelope.sim & ./BuildingSystems_BuildingSystems.Fluid.HeatPumps.ModularReversible.Controls.Safety.Examples.OperationalEnvelope -abortSlowSimulation -alarm=480 -lv LOG_STATS > BuildingSystems_BuildingSystems.Fluid.HeatPumps.ModularReversible.Controls.Safety.Examples.OperationalEnvelope.pipe 2>&1)