Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_IDEAS.Fluid.HeatExchangers.Examples.WaterHeater_u.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/IDEAS 3.0.0/package.mo", uses=false) Using package IDEAS with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/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: "" <> buildModelFMU(IDEAS.Fluid.HeatExchangers.Examples.WaterHeater_u,fileNamePrefix="IDEAS_IDEAS_Fluid_HeatExchangers_Examples_WaterHeater_u",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IDEAS.Fluid.HeatExchangers.Examples.WaterHeater_u,fileNamePrefix="IDEAS_IDEAS_Fluid_HeatExchangers_Examples_WaterHeater_u",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001066/0.001066, allocations: 108 kB / 15.61 MB, free: 152 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001062/0.001062, allocations: 195.2 kB / 16.53 MB, free: 6.664 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.267/1.267, allocations: 222.9 MB / 240.2 MB, free: 4.422 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/package.mo): time 0.7305/0.7305, allocations: 132.2 MB / 422.6 MB, free: 1.805 MB / 350.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001182/0.001182, allocations: 71.84 kB / 0.5019 GB, free: 3.805 MB / 366.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3455/0.3467, allocations: 80.21 MB / 0.5802 GB, free: 4.566 MB / 430.1 MB Notification: Performance of NFInst.instantiate(IDEAS.Fluid.HeatExchangers.Examples.WaterHeater_u): time 0.06046/0.4072, allocations: 66.97 MB / 0.6456 GB, free: 14.41 MB / 494.1 MB Notification: Performance of NFInst.instExpressions: time 0.02233/0.4296, allocations: 16.76 MB / 0.662 GB, free: 13.61 MB / 0.4981 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.003261/0.4329, allocations: 99.5 kB / 0.6621 GB, free: 13.51 MB / 0.4981 GB Notification: Performance of NFTyping.typeComponents: time 0.002926/0.4358, allocations: 1.165 MB / 0.6632 GB, free: 12.34 MB / 0.4981 GB Notification: Performance of NFTyping.typeBindings: time 0.006516/0.4424, allocations: 2.654 MB / 0.6658 GB, free: 9.676 MB / 0.4981 GB Notification: Performance of NFTyping.typeClassSections: time 0.005515/0.4479, allocations: 2.328 MB / 0.6681 GB, free: 7.367 MB / 0.4981 GB Notification: Performance of NFFlatten.flatten: time 0.006202/0.4541, allocations: 5.343 MB / 0.6733 GB, free: 2.008 MB / 0.4981 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002609/0.4567, allocations: 1.907 MB / 0.6751 GB, free: 52 kB / 0.4981 GB Notification: Performance of NFEvalConstants.evaluate: time 0.004162/0.4609, allocations: 2.087 MB / 0.6772 GB, free: 13.97 MB / 0.5137 GB Notification: Performance of NFSimplifyModel.simplify: time 0.002167/0.4631, allocations: 1.489 MB / 0.6786 GB, free: 12.47 MB / 0.5137 GB Notification: Performance of NFPackage.collectConstants: time 0.0004824/0.4636, allocations: 192 kB / 0.6788 GB, free: 12.29 MB / 0.5137 GB Notification: Performance of NFFlatten.collectFunctions: time 0.003749/0.4673, allocations: 1.961 MB / 0.6807 GB, free: 10.32 MB / 0.5137 GB Notification: Performance of NFScalarize.scalarize: time 0.000675/0.468, allocations: 0.5567 MB / 0.6813 GB, free: 9.762 MB / 0.5137 GB Notification: Performance of NFVerifyModel.verify: time 0.001655/0.4697, allocations: 1.143 MB / 0.6824 GB, free: 8.613 MB / 0.5137 GB Notification: Performance of NFConvertDAE.convert: time 0.005194/0.4749, allocations: 3.591 MB / 0.6859 GB, free: 5.012 MB / 0.5137 GB Notification: Performance of FrontEnd - DAE generated: time 5.991e-06/0.4749, allocations: 0 / 0.6859 GB, free: 5.012 MB / 0.5137 GB Notification: Performance of FrontEnd: time 1.292e-06/0.4749, allocations: 3.938 kB / 0.6859 GB, free: 5.008 MB / 0.5137 GB Notification: Performance of Transformations before backend: time 8.251e-05/0.475, allocations: 4 kB / 0.6859 GB, free: 5.004 MB / 0.5137 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 310 * Number of variables: 310 Notification: Performance of Generate backend data structure: time 0.005033/0.4801, allocations: 2.672 MB / 0.6885 GB, free: 2.258 MB / 0.5137 GB Notification: Performance of prepare preOptimizeDAE: time 3.821e-05/0.4801, allocations: 12.03 kB / 0.6885 GB, free: 2.246 MB / 0.5137 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0002761/0.4804, allocations: 182 kB / 0.6887 GB, free: 2.059 MB / 0.5137 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001492/0.4819, allocations: 381.6 kB / 0.6891 GB, free: 1.684 MB / 0.5137 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.003261/0.4852, allocations: 1.729 MB / 0.6907 GB, free: 15.9 MB / 0.5294 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003888/0.4856, allocations: 158.4 kB / 0.6909 GB, free: 15.75 MB / 0.5294 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001983/0.4858, allocations: 131.9 kB / 0.691 GB, free: 15.62 MB / 0.5294 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002646/0.4884, allocations: 1.435 MB / 0.6924 GB, free: 14.09 MB / 0.5294 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.58e-05/0.4885, allocations: 3.938 kB / 0.6924 GB, free: 14.09 MB / 0.5294 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001235/0.4886, allocations: 48 kB / 0.6925 GB, free: 14.04 MB / 0.5294 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.361e-05/0.4887, allocations: 54.25 kB / 0.6925 GB, free: 13.99 MB / 0.5294 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002519/0.4912, allocations: 1.106 MB / 0.6936 GB, free: 12.88 MB / 0.5294 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 0.009075/0.5003, allocations: 7.42 MB / 0.7009 GB, free: 4.891 MB / 0.5294 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002034/0.5023, allocations: 1.299 MB / 0.7021 GB, free: 3.477 MB / 0.5294 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0009481/0.5033, allocations: 454.6 kB / 0.7026 GB, free: 3.031 MB / 0.5294 GB Notification: Performance of preOpt evalFunc (simulation): time 0.004159/0.5075, allocations: 2.635 MB / 0.7051 GB, free: 168 kB / 0.5294 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.00104/0.5085, allocations: 486.6 kB / 0.7056 GB, free: 15.67 MB / 0.545 GB Notification: Performance of pre-optimization done (n=63): time 3.216e-06/0.5085, allocations: 3.938 kB / 0.7056 GB, free: 15.66 MB / 0.545 GB Notification: Performance of matching and sorting (n=63): time 0.002943/0.5115, allocations: 1.217 MB / 0.7068 GB, free: 14.42 MB / 0.545 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.549e-05/0.5116, allocations: 111.4 kB / 0.7069 GB, free: 14.29 MB / 0.545 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001844/0.5134, allocations: 1.484 MB / 0.7083 GB, free: 12.8 MB / 0.545 GB Notification: Performance of collectPreVariables (initialization): time 7.208e-05/0.5135, allocations: 45.7 kB / 0.7084 GB, free: 12.75 MB / 0.545 GB Notification: Performance of collectInitialEqns (initialization): time 0.0006816/0.5142, allocations: 0.8957 MB / 0.7093 GB, free: 11.85 MB / 0.545 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002023/0.5144, allocations: 224.8 kB / 0.7095 GB, free: 11.62 MB / 0.545 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.00029/0.5147, allocations: 210.3 kB / 0.7097 GB, free: 11.41 MB / 0.545 GB Notification: Performance of setup shared object (initialization): time 0.0001108/0.5148, allocations: 349.8 kB / 0.71 GB, free: 11.06 MB / 0.545 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0008919/0.5157, allocations: 384.6 kB / 0.7104 GB, free: 10.68 MB / 0.545 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001113/0.5168, allocations: 0.7281 MB / 0.7111 GB, free: 9.797 MB / 0.545 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001952/0.5188, allocations: 1.098 MB / 0.7122 GB, free: 8.559 MB / 0.545 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.713e-06/0.5188, allocations: 4 kB / 0.7122 GB, free: 8.555 MB / 0.545 GB Notification: Performance of matching and sorting (n=122) (initialization): time 0.00261/0.5214, allocations: 1.274 MB / 0.7134 GB, free: 7.266 MB / 0.545 GB Notification: Performance of prepare postOptimizeDAE: time 3.71e-05/0.5215, allocations: 39.33 kB / 0.7134 GB, free: 7.223 MB / 0.545 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.491e-05/0.5215, allocations: 12 kB / 0.7135 GB, free: 7.211 MB / 0.545 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.449e-05/0.5215, allocations: 16 kB / 0.7135 GB, free: 7.195 MB / 0.545 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000942/0.5225, allocations: 243.6 kB / 0.7137 GB, free: 6.957 MB / 0.545 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.6e-05/0.5225, allocations: 27.92 kB / 0.7137 GB, free: 6.93 MB / 0.545 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001072/0.5236, allocations: 133.8 kB / 0.7139 GB, free: 6.801 MB / 0.545 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 9.038e-05/0.5237, allocations: 51.98 kB / 0.7139 GB, free: 6.75 MB / 0.545 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001345/0.525, allocations: 0.6854 MB / 0.7146 GB, free: 6.062 MB / 0.545 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.001075/0.5261, allocations: 0.7086 MB / 0.7153 GB, free: 5.195 MB / 0.545 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001928/0.5281, allocations: 1.074 MB / 0.7163 GB, free: 3.977 MB / 0.545 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 6.612e-06/0.5281, allocations: 4 kB / 0.7163 GB, free: 3.973 MB / 0.545 GB Notification: Performance of matching and sorting (n=122) (initialization_lambda0): time 0.00253/0.5306, allocations: 1.243 MB / 0.7175 GB, free: 2.715 MB / 0.545 GB Notification: Performance of prepare postOptimizeDAE: time 3.296e-05/0.5307, allocations: 37.7 kB / 0.7176 GB, free: 2.672 MB / 0.545 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.262e-05/0.5307, allocations: 8 kB / 0.7176 GB, free: 2.664 MB / 0.545 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.664e-05/0.5307, allocations: 16 kB / 0.7176 GB, free: 2.648 MB / 0.545 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0009012/0.5316, allocations: 251.8 kB / 0.7178 GB, free: 2.402 MB / 0.545 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.07e-05/0.5316, allocations: 19.94 kB / 0.7179 GB, free: 2.383 MB / 0.545 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001051/0.5327, allocations: 123.9 kB / 0.718 GB, free: 2.262 MB / 0.545 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 8.457e-05/0.5328, allocations: 51.98 kB / 0.718 GB, free: 2.211 MB / 0.545 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 45 * Number of states: 0 () * Number of discrete variables: 6 (TSet.count,$PRE.TSet.count,TSet.T_start,$PRE.TSet.T_start,$whenCondition1,conPI.I.trigger_internal) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (120): * Single equations (assignments): 118 * Array equations: 1 * Algorithm blocks: 1 * 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 0.0002624/0.5331, allocations: 247.8 kB / 0.7183 GB, free: 1.961 MB / 0.545 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.000298/0.5334, allocations: 165.9 kB / 0.7184 GB, free: 1.797 MB / 0.545 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002471/0.5358, allocations: 1.068 MB / 0.7195 GB, free: 0.7109 MB / 0.545 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.559e-05/0.5359, allocations: 12 kB / 0.7195 GB, free: 0.6992 MB / 0.545 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 9.899e-06/0.5359, allocations: 8.031 kB / 0.7195 GB, free: 0.6914 MB / 0.545 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.001769/0.5377, allocations: 0.7925 MB / 0.7203 GB, free: 15.88 MB / 0.5606 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.004433/0.5421, allocations: 2.692 MB / 0.7229 GB, free: 13.11 MB / 0.5606 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.973e-06/0.5421, allocations: 4 kB / 0.7229 GB, free: 13.1 MB / 0.5606 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0007187/0.5429, allocations: 151.8 kB / 0.723 GB, free: 12.95 MB / 0.5606 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0001588/0.543, allocations: 32.97 kB / 0.7231 GB, free: 12.92 MB / 0.5606 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 5.836e-05/0.5431, allocations: 23.98 kB / 0.7231 GB, free: 12.89 MB / 0.5606 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001033/0.5441, allocations: 1.429 MB / 0.7245 GB, free: 11.32 MB / 0.5606 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.859e-06/0.5441, allocations: 7.938 kB / 0.7245 GB, free: 11.32 MB / 0.5606 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003038/0.5472, allocations: 1.58 MB / 0.726 GB, free: 9.695 MB / 0.5606 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0005418/0.5477, allocations: 354.6 kB / 0.7264 GB, free: 9.328 MB / 0.5606 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002394/0.548, allocations: 16 kB / 0.7264 GB, free: 9.312 MB / 0.5606 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0009006/0.5489, allocations: 59.94 kB / 0.7264 GB, free: 9.254 MB / 0.5606 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000114/0.549, allocations: 56.48 kB / 0.7265 GB, free: 9.199 MB / 0.5606 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 7.223e-05/0.5491, allocations: 35.97 kB / 0.7265 GB, free: 9.164 MB / 0.5606 GB Notification: Performance of sorting global known variables: time 0.00142/0.5505, allocations: 1.07 MB / 0.7276 GB, free: 8.07 MB / 0.5606 GB Notification: Performance of sort global known variables: time 2.6e-07/0.5505, allocations: 3.938 kB / 0.7276 GB, free: 8.066 MB / 0.5606 GB Notification: Performance of remove unused functions: time 0.002271/0.5528, allocations: 0.947 MB / 0.7285 GB, free: 7.117 MB / 0.5606 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.s[1],mov.filter.s[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 (75): * Single equations (assignments): 67 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 5 * When equations: 2 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(1,1,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.004332/0.5572, allocations: 2.553 MB / 0.731 GB, free: 4.52 MB / 0.5606 GB Notification: Performance of simCode: created initialization part: time 0.003627/0.5608, allocations: 1.648 MB / 0.7326 GB, free: 2.855 MB / 0.5606 GB Notification: Performance of simCode: created event and clocks part: time 3.457e-06/0.5608, allocations: 0 / 0.7326 GB, free: 2.855 MB / 0.5606 GB Notification: Performance of simCode: created simulation system equations: time 0.001129/0.5619, allocations: 0.5607 MB / 0.7332 GB, free: 2.281 MB / 0.5606 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003644/0.5656, allocations: 0.8997 MB / 0.734 GB, free: 1.422 MB / 0.5606 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01922/0.5848, allocations: 13.06 MB / 0.7468 GB, free: 3.395 MB / 0.5762 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001001/0.5859, allocations: 1.401 MB / 0.7481 GB, free: 1.957 MB / 0.5762 GB Notification: Performance of simCode: alias equations: time 0.001723/0.5876, allocations: 421.3 kB / 0.7485 GB, free: 1.547 MB / 0.5762 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0009308/0.5886, allocations: 0.7375 MB / 0.7493 GB, free: 0.8086 MB / 0.5762 GB Notification: Performance of SimCode: time 6.81e-07/0.5886, allocations: 0 / 0.7493 GB, free: 0.8086 MB / 0.5762 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.08024/0.6688, allocations: 48.22 MB / 0.7964 GB, free: 1.199 MB / 0.6231 GB Notification: Performance of buildModelFMU: Generate platform static: time 9.683/10.35, allocations: 13.52 kB / 0.7964 GB, free: 1.195 MB / 0.6231 GB (rm -f IDEAS_IDEAS.Fluid.HeatExchangers.Examples.WaterHeater_u.pipe ; mkfifo IDEAS_IDEAS.Fluid.HeatExchangers.Examples.WaterHeater_u.pipe ; head -c 1048576 < IDEAS_IDEAS.Fluid.HeatExchangers.Examples.WaterHeater_u.pipe >> ../files/IDEAS_IDEAS.Fluid.HeatExchangers.Examples.WaterHeater_u.sim & python3 -m fmpy simulate --output-file IDEAS_IDEAS.Fluid.HeatExchangers.Examples.WaterHeater_u_res.csv --start-time 0 --stop-time 172800 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 69.12 IDEAS_IDEAS_Fluid_HeatExchangers_Examples_WaterHeater_u.fmu > IDEAS_IDEAS.Fluid.HeatExchangers.Examples.WaterHeater_u.pipe 2>&1)