Running: ./testmodel.py --libraries=/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_7.0.0_Buildings.Fluid.HeatExchangers.Examples.WaterHeater_u.conf.json loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Buildings 7.0.1/package.mo", uses=false) loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false) loadFile("/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) Using package ModelicaServices with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Using package Modelica with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo) Using package Complex with version 4.0.0 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo) Using package Buildings with version 7.0.1 (/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Buildings 7.0.1/package.mo) Running command: translateModel(Buildings.Fluid.HeatExchangers.Examples.WaterHeater_u,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_7.0.0_Buildings.Fluid.HeatExchangers.Examples.WaterHeater_u") translateModel(Buildings.Fluid.HeatExchangers.Examples.WaterHeater_u,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_7.0.0_Buildings.Fluid.HeatExchangers.Examples.WaterHeater_u") Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Buildings 7.0.1/package.mo): time 2.213/2.213, allocations: 254.9 MB / 269.9 MB, free: 9.645 MB / 218.7 MB Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.002057/0.002057, allocations: 195.5 kB / 329.5 MB, free: 1.16 MB / 250.7 MB Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 2.634/2.634, allocations: 225.6 MB / 0.6001 GB, free: 2.227 MB / 426.7 MB Notification: Performance of loadFile(/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/converted-libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.000953/0.0009529, allocations: 94.67 kB / 0.7074 GB, free: 7.945 MB / 0.5261 GB Notification: Performance of FrontEnd - loaded program: time 0.0007727/0.000773, allocations: 12.16 kB / 0.8242 GB, free: 124.4 MB / 0.5886 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2347/0.2355, allocations: 109.1 MB / 0.9308 GB, free: 25.13 MB / 0.5886 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatExchangers.Examples.WaterHeater_u): time 0.1052/0.3408, allocations: 61.79 MB / 0.9911 GB, free: 11.16 MB / 0.6355 GB Notification: Performance of NFInst.instExpressions: time 0.06062/0.4014, allocations: 18.13 MB / 1.009 GB, free: 8.996 MB / 0.6511 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.004677/0.4062, allocations: 79.44 kB / 1.009 GB, free: 8.918 MB / 0.6511 GB Notification: Performance of NFTyping.typeComponents: time 0.00636/0.4126, allocations: 0.8231 MB / 1.01 GB, free: 8.09 MB / 0.6511 GB Notification: Performance of NFTyping.typeBindings: time 0.01247/0.4252, allocations: 2.099 MB / 1.012 GB, free: 5.98 MB / 0.6511 GB Notification: Performance of NFTyping.typeClassSections: time 0.01285/0.438, allocations: 2.737 MB / 1.014 GB, free: 3.238 MB / 0.6511 GB Notification: Performance of NFFlatten.flatten: time 0.6802/1.118, allocations: 6.023 MB / 1.02 GB, free: 20.44 MB / 0.6511 GB Notification: Performance of NFFlatten.resolveConnections: time 0.004413/1.123, allocations: 1.458 MB / 1.022 GB, free: 20.31 MB / 0.6511 GB Notification: Performance of NFEvalConstants.evaluate: time 0.006199/1.129, allocations: 1.665 MB / 1.023 GB, free: 20.3 MB / 0.6511 GB Notification: Performance of NFSimplifyModel.simplify: time 0.00457/1.134, allocations: 1.374 MB / 1.025 GB, free: 20.3 MB / 0.6511 GB Notification: Performance of NFPackage.collectConstants: time 0.0008799/1.135, allocations: 74.41 kB / 1.025 GB, free: 20.3 MB / 0.6511 GB Notification: Performance of NFFlatten.collectFunctions: time 0.006388/1.141, allocations: 1.558 MB / 1.026 GB, free: 20.29 MB / 0.6511 GB Notification: Performance of NFScalarize.scalarize: time 0.001408/1.142, allocations: 430.2 kB / 1.027 GB, free: 20.29 MB / 0.6511 GB Notification: Performance of NFVerifyModel.verify: time 0.001401/1.144, allocations: 444.7 kB / 1.027 GB, free: 20.26 MB / 0.6511 GB Notification: Performance of NFConvertDAE.convert: time 0.006862/1.151, allocations: 2.719 MB / 1.03 GB, free: 20.14 MB / 0.6511 GB Notification: Performance of FrontEnd - DAE generated: time 7.384e-06/1.151, allocations: 0 / 1.03 GB, free: 20.14 MB / 0.6511 GB Notification: Performance of FrontEnd: time 3.587e-06/1.151, allocations: 0 / 1.03 GB, free: 20.14 MB / 0.6511 GB Notification: Performance of Transformations before backend: time 0.0001068/1.151, allocations: 0 / 1.03 GB, free: 20.14 MB / 0.6511 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 311 * Number of variables: 311 Notification: Performance of Generate backend data structure: time 0.007327/1.158, allocations: 2.363 MB / 1.032 GB, free: 18.84 MB / 0.6511 GB Notification: Performance of prepare preOptimizeDAE: time 4.412e-05/1.158, allocations: 7.219 kB / 1.032 GB, free: 18.84 MB / 0.6511 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002699/1.161, allocations: 391.3 kB / 1.032 GB, free: 18.71 MB / 0.6511 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.005781/1.167, allocations: 1.726 MB / 1.034 GB, free: 18.29 MB / 0.6511 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0007089/1.168, allocations: 167.9 kB / 1.034 GB, free: 18.28 MB / 0.6511 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0004138/1.168, allocations: 134.5 kB / 1.034 GB, free: 18.28 MB / 0.6511 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.004403/1.172, allocations: 1.457 MB / 1.036 GB, free: 18.02 MB / 0.6511 GB Notification: Performance of preOpt findStateOrder (simulation): time 4.885e-05/1.173, allocations: 9.438 kB / 1.036 GB, free: 18.01 MB / 0.6511 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001935/1.173, allocations: 52.47 kB / 1.036 GB, free: 18.01 MB / 0.6511 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.878e-05/1.173, allocations: 32.28 kB / 1.036 GB, free: 18.01 MB / 0.6511 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.004354/1.177, allocations: 1.136 MB / 1.037 GB, free: 17.98 MB / 0.6511 GB Warning: The model contains alias variables with redundant start and/or conflicting 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 0.01542/1.193, allocations: 7.371 MB / 1.044 GB, free: 13.77 MB / 0.6511 GB Notification: Performance of preOpt comSubExp (simulation): time 0.004092/1.197, allocations: 1.365 MB / 1.046 GB, free: 13.15 MB / 0.6511 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001968/1.199, allocations: 465.7 kB / 1.046 GB, free: 13.13 MB / 0.6511 GB Notification: Performance of preOpt evalFunc (simulation): time 0.00753/1.206, allocations: 2.59 MB / 1.049 GB, free: 11.77 MB / 0.6511 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001961/1.208, allocations: 0.5023 MB / 1.049 GB, free: 11.68 MB / 0.6511 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.001141/1.21, allocations: 91.23 kB / 1.049 GB, free: 11.65 MB / 0.6511 GB Notification: Performance of pre-optimization done (n=63): time 6.011e-06/1.21, allocations: 1 kB / 1.049 GB, free: 11.65 MB / 0.6511 GB Notification: Performance of matching and sorting (n=63): time 0.005893/1.215, allocations: 1.282 MB / 1.05 GB, free: 11.39 MB / 0.6511 GB Notification: Performance of inlineWhenForInitialization (initialization): time 7.732e-05/1.216, allocations: 196.3 kB / 1.051 GB, free: 11.16 MB / 0.6511 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003592/1.219, allocations: 1.504 MB / 1.052 GB, free: 10.99 MB / 0.6511 GB Notification: Performance of collectPreVariables (initialization): time 0.000292/1.22, allocations: 45.2 kB / 1.052 GB, free: 10.96 MB / 0.6511 GB Notification: Performance of collectInitialEqns (initialization): time 0.001085/1.221, allocations: 0.8981 MB / 1.053 GB, free: 10.63 MB / 0.6511 GB Notification: Performance of collectInitialBindings (initialization): time 0.0004208/1.221, allocations: 226.1 kB / 1.053 GB, free: 10.49 MB / 0.6511 GB Notification: Performance of simplifyInitialFunctions (initialization): time 9.293e-05/1.221, allocations: 21.47 kB / 1.053 GB, free: 10.49 MB / 0.6511 GB Notification: Performance of setup shared object (initialization): time 0.0001072/1.221, allocations: 347 kB / 1.054 GB, free: 10.18 MB / 0.6511 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001707/1.223, allocations: 387.8 kB / 1.054 GB, free: 10.18 MB / 0.6511 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.002325/1.225, allocations: 0.7624 MB / 1.055 GB, free: 9.723 MB / 0.6511 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.002043/1.228, allocations: 0.5005 MB / 1.055 GB, free: 9.668 MB / 0.6511 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.824e-05/1.228, allocations: 0 / 1.055 GB, free: 9.668 MB / 0.6511 GB Notification: Performance of matching and sorting (n=126) (initialization): time 0.005145/1.233, allocations: 1.317 MB / 1.056 GB, free: 9.496 MB / 0.6511 GB Notification: Performance of prepare postOptimizeDAE: time 0.0002563/1.233, allocations: 404.5 kB / 1.057 GB, free: 9.02 MB / 0.6511 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.516e-05/1.233, allocations: 11.22 kB / 1.057 GB, free: 9.02 MB / 0.6511 GB Notification: Performance of postOpt tearingSystem (initialization): time 4.278e-05/1.233, allocations: 15.69 kB / 1.057 GB, free: 9.02 MB / 0.6511 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002006/1.235, allocations: 257.9 kB / 1.057 GB, free: 9.016 MB / 0.6511 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 3.531e-05/1.235, allocations: 26.09 kB / 1.057 GB, free: 9.012 MB / 0.6511 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002747/1.238, allocations: 137.5 kB / 1.057 GB, free: 9 MB / 0.6511 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.000277/1.238, allocations: 55.33 kB / 1.057 GB, free: 8.996 MB / 0.6511 GB Notification: Performance of prepare postOptimizeDAE: time 1.329e-05/1.238, allocations: 2.75 kB / 1.057 GB, free: 8.996 MB / 0.6511 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.004186/1.243, allocations: 1.143 MB / 1.058 GB, free: 8.945 MB / 0.6511 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.706e-05/1.243, allocations: 14.28 kB / 1.058 GB, free: 8.941 MB / 0.6511 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.065e-05/1.243, allocations: 13.31 kB / 1.058 GB, free: 8.941 MB / 0.6511 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001951/1.245, allocations: 253.2 kB / 1.059 GB, free: 8.938 MB / 0.6511 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 3.34e-05/1.245, allocations: 24.05 kB / 1.059 GB, free: 8.938 MB / 0.6511 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002649/1.247, allocations: 133 kB / 1.059 GB, free: 8.922 MB / 0.6511 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0002942/1.248, allocations: 53.05 kB / 1.059 GB, free: 8.922 MB / 0.6511 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 43 * Number of states: 0 () * Number of discrete variables: 6 ($whenCondition1,$PRE.TSet.T_start,TSet.T_start,$PRE.TSet.count,TSet.count,conPI.I.trigger_internal) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (122): * Single equations (assignments): 118 * Array equations: 2 * Algorithm blocks: 1 * Record equations: 1 * 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 0.001598/1.249, allocations: 0.4946 MB / 1.059 GB, free: 8.723 MB / 0.6511 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0005991/1.25, allocations: 163.1 kB / 1.06 GB, free: 8.637 MB / 0.6511 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.004515/1.254, allocations: 1.111 MB / 1.061 GB, free: 8.535 MB / 0.6511 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.564e-05/1.255, allocations: 10.53 kB / 1.061 GB, free: 8.535 MB / 0.6511 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.109e-05/1.255, allocations: 0 / 1.061 GB, free: 8.535 MB / 0.6511 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.003241/1.258, allocations: 0.8289 MB / 1.061 GB, free: 8.434 MB / 0.6511 GB Warning: The model contains alias variables with redundant start and/or conflicting 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 0.008209/1.266, allocations: 2.693 MB / 1.064 GB, free: 7.848 MB / 0.6511 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.227e-05/1.266, allocations: 1.531 kB / 1.064 GB, free: 7.848 MB / 0.6511 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001499/1.268, allocations: 161.3 kB / 1.064 GB, free: 7.844 MB / 0.6511 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0002985/1.268, allocations: 36.44 kB / 1.064 GB, free: 7.836 MB / 0.6511 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001538/1.268, allocations: 34 kB / 1.064 GB, free: 7.832 MB / 0.6511 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001845/1.27, allocations: 1.374 MB / 1.066 GB, free: 22.57 MB / 0.6667 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.37e-06/1.27, allocations: 6.453 kB / 1.066 GB, free: 22.57 MB / 0.6667 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.00591/1.276, allocations: 1.64 MB / 1.067 GB, free: 22.22 MB / 0.6667 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001393/1.277, allocations: 368.8 kB / 1.068 GB, free: 22.02 MB / 0.6667 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0007372/1.278, allocations: 20.7 kB / 1.068 GB, free: 22.02 MB / 0.6667 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002508/1.281, allocations: 121.6 kB / 1.068 GB, free: 22.01 MB / 0.6667 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002783/1.281, allocations: 66.47 kB / 1.068 GB, free: 22 MB / 0.6667 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001587/1.281, allocations: 31.34 kB / 1.068 GB, free: 22 MB / 0.6667 GB Notification: Performance of sorting global known variables: time 0.003054/1.284, allocations: 1.085 MB / 1.069 GB, free: 21.86 MB / 0.6667 GB Notification: Performance of sort global known variables: time 1.572e-06/1.284, allocations: 4 kB / 1.069 GB, free: 21.86 MB / 0.6667 GB Notification: Performance of remove unused functions: time 0.007954/1.292, allocations: 0.9809 MB / 1.07 GB, free: 21.71 MB / 0.6667 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 8 * Number of states: 6 (vol.dynBal.U,mov.filter.x[1],mov.filter.x[2],conPI.I.y,THeaOut.T,hea.vol.dynBal.U) * Number of discrete variables: 3 ($whenCondition1,TSet.T_start,TSet.count) * Number of discrete states: 1 (TSet.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (74): * Single equations (assignments): 66 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 5 * When equations: 2 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 1 {(1,100.0%) 2} * Non-linear torn systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.003158/1.296, allocations: 0.5277 MB / 1.07 GB, free: 21.54 MB / 0.6667 GB Notification: Performance of simCode: created initialization part: time 0.007638/1.303, allocations: 1.7 MB / 1.072 GB, free: 21.31 MB / 0.6667 GB Notification: Performance of simCode: created event and clocks part: time 1.169e-05/1.303, allocations: 1.219 kB / 1.072 GB, free: 21.31 MB / 0.6667 GB Notification: Performance of simCode: created simulation system equations: time 0.002328/1.306, allocations: 0.5798 MB / 1.073 GB, free: 21.18 MB / 0.6667 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.007924/1.314, allocations: 0.865 MB / 1.073 GB, free: 21.11 MB / 0.6667 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.009691/1.323, allocations: 3.906 MB / 1.077 GB, free: 19.18 MB / 0.6667 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001336/1.325, allocations: 1.413 MB / 1.079 GB, free: 18.35 MB / 0.6667 GB Notification: Performance of simCode: alias equations: time 0.003224/1.328, allocations: 428.1 kB / 1.079 GB, free: 18.15 MB / 0.6667 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0006449/1.329, allocations: 143.2 kB / 1.079 GB, free: 18.13 MB / 0.6667 GB Notification: Performance of SimCode: time 1.122e-06/1.329, allocations: 0 / 1.079 GB, free: 18.13 MB / 0.6667 GB Notification: Performance of Templates: time 0.1029/1.432, allocations: 33.67 MB / 1.112 GB, free: 8.125 MB / 0.6823 GB make -j1 -f Buildings_7.0.0_Buildings.Fluid.HeatExchangers.Examples.WaterHeater_u.makefile (rm -f Buildings_7.0.0_Buildings.Fluid.HeatExchangers.Examples.WaterHeater_u.pipe ; mkfifo Buildings_7.0.0_Buildings.Fluid.HeatExchangers.Examples.WaterHeater_u.pipe ; head -c 1048576 < Buildings_7.0.0_Buildings.Fluid.HeatExchangers.Examples.WaterHeater_u.pipe >> ../files/Buildings_7.0.0_Buildings.Fluid.HeatExchangers.Examples.WaterHeater_u.sim & ./Buildings_7.0.0_Buildings.Fluid.HeatExchangers.Examples.WaterHeater_u -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_7.0.0_Buildings.Fluid.HeatExchangers.Examples.WaterHeater_u.pipe 2>&1)