Running: ./testmodel.py --libraries=/var/lib/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8.0.0_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.IntegratedPrimaryPlantSide.conf.json
loadFile("/var/lib/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.0/package.mo", uses=false)
loadFile("/var/lib/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo", uses=false)
loadFile("/var/lib/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo", uses=false)
loadFile("/var/lib/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo", uses=false)
Using package ModelicaServices with version 3.2.3 (/var/lib/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo)
Using package Modelica with version 3.2.3 (/var/lib/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo)
Using package Complex with version 3.2.3 (/var/lib/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo)
Using package Buildings with version 8.0.0 (/var/lib/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.0/package.mo)
Running command: translateModel(Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.IntegratedPrimaryPlantSide,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8.0.0_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.IntegratedPrimaryPlantSide")
translateModel(Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.IntegratedPrimaryPlantSide,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8.0.0_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.IntegratedPrimaryPlantSide")
Notification: Performance of loadFile(/var/lib/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.0/package.mo): time 2.572/2.572, allocations: 285 MB / 292.5 MB, free: 10.53 MB / 234.7 MB
Notification: Performance of loadFile(/var/lib/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.002175/0.002175, allocations: 180.9 kB / 360.7 MB, free: 7.266 MB / 298.7 MB
Notification: Performance of loadFile(/var/lib/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.938/1.938, allocations: 205.3 MB / 0.6192 GB, free: 12.12 MB / 474.7 MB
Notification: Performance of loadFile(/var/lib/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.001079/0.001078, allocations: 99.09 kB / 0.7322 GB, free: 44.68 MB / 0.5105 GB
Notification: Performance of FrontEnd - loaded program: time 2.76e-05/2.743e-05, allocations: 4 kB / 0.8509 GB, free: 3.355 MB / 0.5886 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.8312/0.8312, allocations: 115.3 MB / 0.9635 GB, free: 78.92 MB / 0.6667 GB
Notification: Performance of FrontEnd - scodeFlatten: time 1.454/2.285, allocations: 495.1 MB / 1.447 GB, free: 70.08 MB / 0.8542 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003812/2.285, allocations: 108 kB / 1.447 GB, free: 70.02 MB / 0.8542 GB
Notification: Performance of FrontEnd - DAE generated: time 37.24/39.53, allocations: 6.456 GB / 7.903 GB, free: 10.76 MB / 1.276 GB
Notification: Performance of FrontEnd: time 1.914e-06/39.53, allocations: 0 / 7.903 GB, free: 10.76 MB / 1.276 GB
Notification: Performance of Transformations before backend: time 0.003866/39.53, allocations: 367.6 kB / 7.903 GB, free: 10.4 MB / 1.276 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 1792
 * Number of variables: 1792
Notification: Performance of Generate backend data structure: time 0.05562/39.59, allocations: 12.59 MB / 7.915 GB, free: 13.71 MB / 1.292 GB
Notification: Performance of prepare preOptimizeDAE: time 5.509e-05/39.59, allocations: 8.031 kB / 7.915 GB, free: 13.7 MB / 1.292 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.03585/39.62, allocations: 3.521 MB / 7.919 GB, free: 10.16 MB / 1.292 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.07959/39.7, allocations: 18.88 MB / 7.937 GB, free: 7.191 MB / 1.307 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.00374/39.7, allocations: 0.7114 MB / 7.938 GB, free: 6.453 MB / 1.307 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.004807/39.71, allocations: 491.9 kB / 7.938 GB, free: 5.973 MB / 1.307 GB
Notification: Performance of preOpt removeEqualFunctionCalls (simulation): time 1.443/41.15, allocations: 9.636 MB / 7.948 GB, free: 77.02 MB / 1.307 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.04807/41.2, allocations: 9.259 MB / 7.957 GB, free: 76.11 MB / 1.307 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0006878/41.2, allocations: 9.656 kB / 7.957 GB, free: 76.11 MB / 1.307 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.004368/41.21, allocations: 9.625 kB / 7.957 GB, free: 76.11 MB / 1.307 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.000402/41.21, allocations: 183.1 kB / 7.957 GB, free: 76.11 MB / 1.307 GB
Warning: The model contains alias variables with conflicting start and/or nominal values. It is recommended to resolve the conflicts, because otherwise the system could be hard to solve. To print the conflicting alias sets and the chosen candidates please use -d=aliasConflicts.
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.1814/41.39, allocations: 56.96 MB / 8.013 GB, free: 53.35 MB / 1.307 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.02728/41.42, allocations: 7.42 MB / 8.02 GB, free: 52.08 MB / 1.307 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.01722/41.43, allocations: 3.797 MB / 8.024 GB, free: 52.05 MB / 1.307 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.005705/41.44, allocations: 3.123 MB / 8.027 GB, free: 48.68 MB / 1.307 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0184/41.46, allocations: 3.881 MB / 8.03 GB, free: 48.54 MB / 1.307 GB
Notification: Performance of preOpt simplifyInStream (simulation): time 0.02923/41.49, allocations: 2.16 MB / 8.033 GB, free: 48.43 MB / 1.307 GB
Notification: Performance of pre-optimization done (n=429): time 8.347e-05/41.49, allocations: 0.625 kB / 8.033 GB, free: 48.43 MB / 1.307 GB
Notification: Performance of matching and sorting (n=429): time 0.05188/41.54, allocations: 8.123 MB / 8.04 GB, free: 47.63 MB / 1.307 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0005234/41.54, allocations: 0.9951 MB / 8.041 GB, free: 46.47 MB / 1.307 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.04442/41.58, allocations: 10.73 MB / 8.052 GB, free: 45.81 MB / 1.307 GB
Notification: Performance of collectPreVariables (initialization): time 0.002578/41.59, allocations: 40.11 kB / 8.052 GB, free: 45.78 MB / 1.307 GB
Notification: Performance of collectInitialEqns (initialization): time 0.01385/41.6, allocations: 6.31 MB / 8.058 GB, free: 44.7 MB / 1.307 GB
Notification: Performance of collectInitialBindings (initialization): time 0.003625/41.6, allocations: 1.422 MB / 8.06 GB, free: 43.95 MB / 1.307 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.001972/41.61, allocations: 2.469 kB / 8.06 GB, free: 43.95 MB / 1.307 GB
Notification: Performance of setup shared object (initialization): time 0.0007734/41.61, allocations: 0.5457 MB / 8.06 GB, free: 43.63 MB / 1.307 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.01166/41.62, allocations: 3.861 MB / 8.064 GB, free: 43.62 MB / 1.307 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.01464/41.63, allocations: 6.145 MB / 8.07 GB, free: 41.12 MB / 1.307 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.01694/41.65, allocations: 4.667 MB / 8.074 GB, free: 41 MB / 1.307 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 0.0001182/41.65, allocations: 10.31 kB / 8.074 GB, free: 41 MB / 1.307 GB
Notification: Performance of matching and sorting (n=801) (initialization): time 0.04325/41.69, allocations: 10.98 MB / 8.085 GB, free: 40.13 MB / 1.307 GB
Notification: Performance of prepare postOptimizeDAE: time 0.01092/41.7, allocations: 22.52 MB / 8.107 GB, free: 48.85 MB / 1.339 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.000358/41.7, allocations: 56.61 kB / 8.107 GB, free: 48.85 MB / 1.339 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.001458/41.71, allocations: 406.4 kB / 8.108 GB, free: 48.84 MB / 1.339 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01871/41.72, allocations: 1.919 MB / 8.109 GB, free: 48.84 MB / 1.339 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.006988/41.73, allocations: 4.556 MB / 8.114 GB, free: 45.44 MB / 1.339 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.02355/41.76, allocations: 1.079 MB / 8.115 GB, free: 45.4 MB / 1.339 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.002935/41.76, allocations: 349.6 kB / 8.115 GB, free: 45.4 MB / 1.339 GB
Notification: Performance of prepare postOptimizeDAE: time 2.137e-05/41.76, allocations: 7.234 kB / 8.115 GB, free: 45.4 MB / 1.339 GB
Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.03654/41.8, allocations: 9.522 MB / 8.125 GB, free: 45.19 MB / 1.339 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0004785/41.8, allocations: 62.81 kB / 8.125 GB, free: 45.19 MB / 1.339 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.004353/41.8, allocations: 417.1 kB / 8.125 GB, free: 45.18 MB / 1.339 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.02753/41.83, allocations: 1.853 MB / 8.127 GB, free: 45.18 MB / 1.339 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01243/41.84, allocations: 5.619 MB / 8.132 GB, free: 42.46 MB / 1.339 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.02242/41.86, allocations: 1.059 MB / 8.133 GB, free: 42.43 MB / 1.339 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.002973/41.87, allocations: 345.8 kB / 8.134 GB, free: 42.43 MB / 1.339 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 157
 * Number of states: 0 ()
 * Number of discrete variables: 15 ($whenCondition2,$whenCondition3,intWSEPri2.trigger,$PRE.tri.pulseStart,tri.pulseStart,$whenCondition1,TCon_in.a,TCon_in.b,TCon_in.last,$PRE.TCon_in.nextEvent,TCon_in.nextEvent,TCon_in.nextEventScaled,intWSEPri1.on[1],intWSEPri1.on[2],intWSEPri1.wse.heaExc.con.I.trigger_internal)
 * Number of discrete states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (746):
 * Single equations (assignments): 719
 * Array equations: 10
 * Algorithm blocks: 1
 * Record equations: 10
 * When equations: 0
 * If-equations: 0
 * Equation systems (linear and non-linear blocks): 4
 * Torn equation systems: 2
 * Mixed (continuous/discrete) equation systems: 0
Notification: Equation system details:
 * Constant Jacobian: 0
 * Linear Jacobian (size,density): 0
 * Non-linear Jacobian: 4 {1,1,1,1}
 * Without analytic Jacobian: 0
Notification: Torn system details for strict tearing set:
 * Linear torn systems: 0
 * Non-linear torn systems: 2 {6 10,6 10}
Notification: Performance of prepare postOptimizeDAE: time 0.005139/41.87, allocations: 306.8 kB / 8.134 GB, free: 42.29 MB / 1.339 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.005993/41.88, allocations: 1.19 MB / 8.135 GB, free: 41.64 MB / 1.339 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.03781/41.91, allocations: 8.987 MB / 8.144 GB, free: 41.23 MB / 1.339 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 0.000171/41.92, allocations: 50.09 kB / 8.144 GB, free: 41.23 MB / 1.339 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 3.207e-05/41.92, allocations: 3.469 kB / 8.144 GB, free: 41.23 MB / 1.339 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.03826/41.95, allocations: 6.844 MB / 8.151 GB, free: 40.88 MB / 1.339 GB
Warning: The model contains alias variables with conflicting start and/or nominal values. It is recommended to resolve the conflicts, because otherwise the system could be hard to solve. To print the conflicting alias sets and the chosen candidates please use -d=aliasConflicts.
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.1227/42.08, allocations: 21.21 MB / 8.171 GB, free: 38.98 MB / 1.339 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.149e-05/42.08, allocations: 2.906 kB / 8.171 GB, free: 38.98 MB / 1.339 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.03408/42.11, allocations: 1.26 MB / 8.173 GB, free: 38.98 MB / 1.339 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.001326/42.11, allocations: 289 kB / 8.173 GB, free: 38.96 MB / 1.339 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.001788/42.11, allocations: 106.5 kB / 8.173 GB, free: 38.96 MB / 1.339 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.00422/42.12, allocations: 4.151 MB / 8.177 GB, free: 35.57 MB / 1.339 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 9.949e-06/42.12, allocations: 4.531 kB / 8.177 GB, free: 35.57 MB / 1.339 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0385/42.16, allocations: 13.68 MB / 8.19 GB, free: 33.68 MB / 1.339 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.01247/42.17, allocations: 2.871 MB / 8.193 GB, free: 32.72 MB / 1.339 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.005917/42.17, allocations: 37.97 kB / 8.193 GB, free: 32.72 MB / 1.339 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.01964/42.19, allocations: 1.002 MB / 8.194 GB, free: 32.7 MB / 1.339 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.001642/42.2, allocations: 305.1 kB / 8.195 GB, free: 32.7 MB / 1.339 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.001112/42.2, allocations: 208.2 kB / 8.195 GB, free: 32.7 MB / 1.339 GB
Notification: Performance of sorting global known variables: time 0.03125/42.23, allocations: 8.069 MB / 8.203 GB, free: 32.34 MB / 1.339 GB
Notification: Performance of sort global known variables: time 1.553e-06/42.23, allocations: 0 / 8.203 GB, free: 32.34 MB / 1.339 GB
Notification: Performance of remove unused functions: time 0.04371/42.27, allocations: 6.351 MB / 8.209 GB, free: 32.05 MB / 1.339 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 9
 * Number of states: 32 (TSup1.T,intWSEPri1.chiPar.chi[1].vol1.dynBal.U,intWSEPri1.chiPar.chi[1].vol2.dynBal.U,intWSEPri1.chiPar.filter[1].x[1],intWSEPri1.chiPar.filter[1].x[2],intWSEPri1.wse.heaExc.thrWayVal.vol.dynBal.U,intWSEPri1.wse.heaExc.thrWayVal.filter.x[1],intWSEPri1.wse.heaExc.thrWayVal.filter.x[2],intWSEPri1.wse.heaExc.con.I.y,intWSEPri1.wse.filter[1].x[1],intWSEPri1.wse.filter[1].x[2],intWSEPri1.senTem.T,intWSEPri1.val5.filter.x[1],intWSEPri1.val5.filter.x[2],intWSEPri1.val6.filter.x[1],intWSEPri1.val6.filter.x[2],intWSEPri2.chiPar.chi[1].vol1.dynBal.U,intWSEPri2.chiPar.chi[1].vol2.dynBal.U,intWSEPri2.chiPar.filter[1].x[1],intWSEPri2.chiPar.filter[1].x[2],intWSEPri2.wse.heaExc.thrWayVal.vol.dynBal.U,intWSEPri2.wse.heaExc.thrWayVal.filter.x[1],intWSEPri2.wse.heaExc.thrWayVal.filter.x[2],intWSEPri2.wse.heaExc.con.I.y,intWSEPri2.wse.filter[1].x[1],intWSEPri2.wse.filter[1].x[2],intWSEPri2.senTem.T,intWSEPri2.val5.filter.x[1],intWSEPri2.val5.filter.x[2],intWSEPri2.val6.filter.x[1],intWSEPri2.val6.filter.x[2],TSup2.T)
 * Number of discrete variables: 12 (intWSEPri2.trigger,$whenCondition3,$whenCondition2,$whenCondition1,TCon_in.a,TCon_in.b,TCon_in.last,TCon_in.nextEvent,TCon_in.nextEventScaled,intWSEPri1.on[1],intWSEPri1.on[2],tri.pulseStart)
 * Number of discrete states: 6 (TCon_in.nextEvent,TCon_in.last,TCon_in.nextEventScaled,TCon_in.b,TCon_in.a,$whenCondition1)
 * Top-level inputs: 0
Notification: Strong component statistics for simulation (474):
 * Single equations (assignments): 448
 * Array equations: 0
 * Algorithm blocks: 1
 * Record equations: 18
 * When equations: 1
 * If-equations: 0
 * Equation systems (linear and non-linear blocks): 4
 * Torn equation systems: 2
 * Mixed (continuous/discrete) equation systems: 0
Notification: Equation system details:
 * Constant Jacobian: 0
 * Linear Jacobian (size,density): 0
 * Non-linear Jacobian: 4 {1,1,1,1}
 * Without analytic Jacobian: 0
Notification: Torn system details for strict tearing set:
 * Linear torn systems: 0
 * Non-linear torn systems: 2 {6 9,6 9}
Notification: Performance of Backend phase and start with SimCode phase: time 0.01714/42.29, allocations: 7.425 MB / 8.216 GB, free: 28.35 MB / 1.339 GB
Notification: Performance of simCode: created initialization part: time 0.04227/42.33, allocations: 15.08 MB / 8.231 GB, free: 27.18 MB / 1.339 GB
Notification: Performance of simCode: created event and clocks part: time 1.799e-05/42.33, allocations: 10 kB / 8.231 GB, free: 27.18 MB / 1.339 GB
Notification: Performance of simCode: created simulation system equations: time 0.01142/42.34, allocations: 3.785 MB / 8.234 GB, free: 27.1 MB / 1.339 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.05601/42.4, allocations: 6.279 MB / 8.241 GB, free: 26.97 MB / 1.339 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.07408/42.47, allocations: 21.27 MB / 8.261 GB, free: 22.56 MB / 1.339 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.01842/42.49, allocations: 7.287 MB / 8.269 GB, free: 21.5 MB / 1.339 GB
Notification: Performance of simCode: alias equations: time 0.04499/42.54, allocations: 5.416 MB / 8.274 GB, free: 20.88 MB / 1.339 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.005213/42.54, allocations: 0.6889 MB / 8.274 GB, free: 20.87 MB / 1.339 GB
Notification: Performance of SimCode: time 1.813e-06/42.54, allocations: 0 / 8.274 GB, free: 20.87 MB / 1.339 GB
Notification: Performance of Templates: time 3.565/46.11, allocations: 251.6 MB / 8.52 GB, free: 136.6 MB / 1.37 GB
make -j1 -f Buildings_8.0.0_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.IntegratedPrimaryPlantSide.makefile
(rm -f Buildings_8.0.0_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.IntegratedPrimaryPlantSide.pipe ; mkfifo Buildings_8.0.0_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.IntegratedPrimaryPlantSide.pipe ; head -c 1048576 < Buildings_8.0.0_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.IntegratedPrimaryPlantSide.pipe >> ../files/Buildings_8.0.0_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.IntegratedPrimaryPlantSide.sim & ./Buildings_8.0.0_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.IntegratedPrimaryPlantSide -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_8.0.0_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.IntegratedPrimaryPlantSide.pipe 2>&1)