Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_IDEAS.Fluid.Interfaces.Examples.HeaterCooler_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.Interfaces.Examples.HeaterCooler_u,fileNamePrefix="IDEAS_IDEAS_Fluid_Interfaces_Examples_HeaterCooler_u",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IDEAS.Fluid.Interfaces.Examples.HeaterCooler_u,fileNamePrefix="IDEAS_IDEAS_Fluid_Interfaces_Examples_HeaterCooler_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 0.007143/0.007143, allocations: 96.22 kB / 15.73 MB, free: 6.043 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001854/0.001854, allocations: 195.8 kB / 16.68 MB, free: 5.969 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.428/1.428, allocations: 222.9 MB / 240.4 MB, free: 4.305 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/package.mo): time 0.8217/0.8217, allocations: 132.2 MB / 422.7 MB, free: 1.699 MB / 350.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001894/0.001894, allocations: 64.75 kB / 0.5809 GB, free: 1.086 MB / 430.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1518/0.1537, allocations: 80.2 MB / 0.6592 GB, free: 13.94 MB / 0.4981 GB Notification: Performance of NFInst.instantiate(IDEAS.Fluid.Interfaces.Examples.HeaterCooler_u): time 0.6617/0.8155, allocations: 300.3 MB / 0.9525 GB, free: 2.262 MB / 0.6544 GB Notification: Performance of NFInst.instExpressions: time 0.07289/0.8884, allocations: 49.94 MB / 1.001 GB, free: 208 kB / 0.7012 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.008803/0.8973, allocations: 302.4 kB / 1.002 GB, free: 15.9 MB / 0.7169 GB Notification: Performance of NFTyping.typeComponents: time 0.009929/0.9072, allocations: 3.419 MB / 1.005 GB, free: 12.46 MB / 0.7169 GB Notification: Performance of NFTyping.typeBindings: time 0.02534/0.9326, allocations: 9.013 MB / 1.014 GB, free: 3.41 MB / 0.7169 GB Notification: Performance of NFTyping.typeClassSections: time 0.01744/0.9501, allocations: 6.641 MB / 1.02 GB, free: 12.82 MB / 0.7325 GB Notification: Performance of NFFlatten.flatten: time 0.02884/0.9789, allocations: 18.44 MB / 1.038 GB, free: 10.32 MB / 0.7481 GB Notification: Performance of NFFlatten.resolveConnections: time 0.00958/0.9885, allocations: 5.863 MB / 1.044 GB, free: 4.359 MB / 0.7481 GB Notification: Performance of NFEvalConstants.evaluate: time 0.01805/1.007, allocations: 7.385 MB / 1.051 GB, free: 12.98 MB / 0.7637 GB Notification: Performance of NFSimplifyModel.simplify: time 0.01061/1.017, allocations: 5.091 MB / 1.056 GB, free: 7.871 MB / 0.7637 GB Notification: Performance of NFPackage.collectConstants: time 0.001832/1.019, allocations: 0.5664 MB / 1.057 GB, free: 7.305 MB / 0.7637 GB Notification: Performance of NFFlatten.collectFunctions: time 0.01202/1.031, allocations: 4.383 MB / 1.061 GB, free: 2.914 MB / 0.7637 GB Notification: Performance of NFScalarize.scalarize: time 0.00213/1.033, allocations: 1.51 MB / 1.062 GB, free: 1.398 MB / 0.7637 GB Notification: Performance of NFVerifyModel.verify: time 0.005719/1.039, allocations: 3.736 MB / 1.066 GB, free: 13.64 MB / 0.7794 GB Notification: Performance of NFConvertDAE.convert: time 0.01856/1.058, allocations: 10.48 MB / 1.076 GB, free: 3.133 MB / 0.7794 GB Notification: Performance of FrontEnd - DAE generated: time 5.431e-06/1.058, allocations: 3.938 kB / 1.076 GB, free: 3.129 MB / 0.7794 GB Notification: Performance of FrontEnd: time 1.473e-06/1.058, allocations: 0 / 1.076 GB, free: 3.129 MB / 0.7794 GB Notification: Performance of Transformations before backend: time 0.000275/1.058, allocations: 4 kB / 1.076 GB, free: 3.125 MB / 0.7794 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 1035 * Number of variables: 1035 Notification: Performance of Generate backend data structure: time 0.01349/1.071, allocations: 7.704 MB / 1.084 GB, free: 11.27 MB / 0.795 GB Notification: Performance of prepare preOptimizeDAE: time 4.881e-05/1.072, allocations: 8.031 kB / 1.084 GB, free: 11.26 MB / 0.795 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.00074/1.072, allocations: 0.5357 MB / 1.084 GB, free: 10.71 MB / 0.795 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002298/1.075, allocations: 0.8156 MB / 1.085 GB, free: 9.895 MB / 0.795 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.01045/1.085, allocations: 5.416 MB / 1.09 GB, free: 4.41 MB / 0.795 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003049/1.085, allocations: 320.1 kB / 1.091 GB, free: 4.094 MB / 0.795 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0007298/1.086, allocations: 432 kB / 1.091 GB, free: 3.672 MB / 0.795 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.007855/1.094, allocations: 4.381 MB / 1.095 GB, free: 15.01 MB / 0.8106 GB Notification: Performance of preOpt findStateOrder (simulation): time 9.251e-05/1.094, allocations: 19.83 kB / 1.095 GB, free: 14.99 MB / 0.8106 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0003862/1.094, allocations: 176 kB / 1.096 GB, free: 14.82 MB / 0.8106 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001275/1.095, allocations: 120 kB / 1.096 GB, free: 14.7 MB / 0.8106 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.005404/1.1, allocations: 2.961 MB / 1.099 GB, free: 11.74 MB / 0.8106 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 0.02947/1.13, allocations: 25.16 MB / 1.123 GB, free: 0.5391 MB / 0.8262 GB Notification: Performance of preOpt comSubExp (simulation): time 0.2777/1.407, allocations: 2.76 MB / 1.126 GB, free: 320.6 MB / 0.8262 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001411/1.409, allocations: 0.9994 MB / 1.127 GB, free: 320.5 MB / 0.8262 GB Notification: Performance of preOpt evalFunc (simulation): time 0.001933/1.411, allocations: 3.906 MB / 1.131 GB, free: 316 MB / 0.8262 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.498e-05/1.411, allocations: 63.31 kB / 1.131 GB, free: 316 MB / 0.8262 GB Notification: Performance of pre-optimization done (n=217): time 3.968e-06/1.411, allocations: 1.5 kB / 1.131 GB, free: 316 MB / 0.8262 GB Notification: Performance of matching and sorting (n=217): time 0.01037/1.421, allocations: 4.089 MB / 1.135 GB, free: 314.6 MB / 0.8262 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.605e-05/1.421, allocations: 79.05 kB / 1.135 GB, free: 314.5 MB / 0.8262 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.006354/1.428, allocations: 4.298 MB / 1.139 GB, free: 313.1 MB / 0.8262 GB Notification: Performance of collectPreVariables (initialization): time 0.0003662/1.428, allocations: 84.42 kB / 1.139 GB, free: 313 MB / 0.8262 GB Notification: Performance of collectInitialEqns (initialization): time 0.001662/1.43, allocations: 2.823 MB / 1.142 GB, free: 311.4 MB / 0.8262 GB Notification: Performance of collectInitialBindings (initialization): time 0.0007069/1.43, allocations: 0.7975 MB / 1.143 GB, free: 310.9 MB / 0.8262 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0007356/1.431, allocations: 0.5775 MB / 1.143 GB, free: 310.6 MB / 0.8262 GB Notification: Performance of setup shared object (initialization): time 3.985e-05/1.431, allocations: 303.1 kB / 1.144 GB, free: 310.3 MB / 0.8262 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001379/1.432, allocations: 0.8181 MB / 1.144 GB, free: 310 MB / 0.8262 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.002074/1.435, allocations: 1.825 MB / 1.146 GB, free: 308.5 MB / 0.8262 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.003012/1.438, allocations: 2.512 MB / 1.149 GB, free: 306.8 MB / 0.8262 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.493e-05/1.438, allocations: 11.84 kB / 1.149 GB, free: 306.8 MB / 0.8262 GB Notification: Performance of matching and sorting (n=365) (initialization): time 0.006938/1.445, allocations: 3.583 MB / 1.152 GB, free: 305.3 MB / 0.8262 GB Notification: Performance of prepare postOptimizeDAE: time 2.686e-05/1.445, allocations: 11.81 kB / 1.152 GB, free: 305.3 MB / 0.8262 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.27e-05/1.445, allocations: 23.69 kB / 1.152 GB, free: 305.3 MB / 0.8262 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.002271/1.447, allocations: 0.5871 MB / 1.153 GB, free: 305.1 MB / 0.8262 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001475/1.448, allocations: 0.555 MB / 1.153 GB, free: 305.1 MB / 0.8262 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001433/1.45, allocations: 2.684 MB / 1.156 GB, free: 302.7 MB / 0.8262 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003106/1.453, allocations: 339.3 kB / 1.156 GB, free: 302.6 MB / 0.8262 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001876/1.453, allocations: 133.8 kB / 1.156 GB, free: 302.6 MB / 0.8262 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.002334/1.455, allocations: 1.568 MB / 1.158 GB, free: 301.8 MB / 0.8262 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.001455/1.457, allocations: 1.797 MB / 1.16 GB, free: 300.3 MB / 0.8262 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.002554/1.46, allocations: 2.458 MB / 1.162 GB, free: 298.6 MB / 0.8262 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.009e-05/1.46, allocations: 7.812 kB / 1.162 GB, free: 298.6 MB / 0.8262 GB Notification: Performance of matching and sorting (n=365) (initialization_lambda0): time 0.005371/1.465, allocations: 3.333 MB / 1.165 GB, free: 297.2 MB / 0.8262 GB Notification: Performance of prepare postOptimizeDAE: time 2.19e-05/1.465, allocations: 15.66 kB / 1.165 GB, free: 297.2 MB / 0.8262 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.934e-05/1.465, allocations: 19.81 kB / 1.165 GB, free: 297.2 MB / 0.8262 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0008376/1.466, allocations: 370.2 kB / 1.166 GB, free: 297.1 MB / 0.8262 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001463/1.467, allocations: 0.5604 MB / 1.166 GB, free: 297 MB / 0.8262 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.005645/1.473, allocations: 8.449 MB / 1.174 GB, free: 289.6 MB / 0.8262 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003166/1.476, allocations: 301.6 kB / 1.175 GB, free: 289.5 MB / 0.8262 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.000186/1.476, allocations: 129.8 kB / 1.175 GB, free: 289.5 MB / 0.8262 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 97 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (323): * Single equations (assignments): 319 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 4 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 4 systems {(1,12), (1,9), (1,12), (1,9)} Notification: Performance of prepare postOptimizeDAE: time 0.0005219/1.477, allocations: 374.1 kB / 1.175 GB, free: 289.2 MB / 0.8262 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0007191/1.478, allocations: 0.5327 MB / 1.176 GB, free: 288.9 MB / 0.8262 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.004899/1.482, allocations: 3.562 MB / 1.179 GB, free: 287.4 MB / 0.8262 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.136e-05/1.483, allocations: 38.31 kB / 1.179 GB, free: 287.4 MB / 0.8262 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.519e-06/1.483, allocations: 0 / 1.179 GB, free: 287.4 MB / 0.8262 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.003037/1.486, allocations: 2.437 MB / 1.182 GB, free: 285.9 MB / 0.8262 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 0.009068/1.495, allocations: 8.204 MB / 1.19 GB, free: 277.5 MB / 0.8262 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 9.578e-06/1.495, allocations: 3.938 kB / 1.19 GB, free: 277.5 MB / 0.8262 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001161/1.496, allocations: 370.1 kB / 1.19 GB, free: 277.1 MB / 0.8262 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0006092/1.496, allocations: 292.1 kB / 1.19 GB, free: 276.9 MB / 0.8262 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001067/1.497, allocations: 67.95 kB / 1.19 GB, free: 276.8 MB / 0.8262 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001103/1.498, allocations: 2.508 MB / 1.193 GB, free: 274.2 MB / 0.8262 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.427e-06/1.498, allocations: 0 / 1.193 GB, free: 274.2 MB / 0.8262 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.00569/1.503, allocations: 4.364 MB / 1.197 GB, free: 269.8 MB / 0.8262 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001623/1.505, allocations: 0.9052 MB / 1.198 GB, free: 268.9 MB / 0.8262 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0005275/1.506, allocations: 44 kB / 1.198 GB, free: 268.8 MB / 0.8262 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002105/1.508, allocations: 117.6 kB / 1.198 GB, free: 268.7 MB / 0.8262 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002062/1.508, allocations: 151.5 kB / 1.198 GB, free: 268.6 MB / 0.8262 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001616/1.508, allocations: 115.9 kB / 1.198 GB, free: 268.5 MB / 0.8262 GB Notification: Performance of sorting global known variables: time 0.003308/1.511, allocations: 2.846 MB / 1.201 GB, free: 265.6 MB / 0.8262 GB Notification: Performance of sort global known variables: time 2.51e-07/1.511, allocations: 0 / 1.201 GB, free: 265.6 MB / 0.8262 GB Notification: Performance of remove unused functions: time 0.006068/1.517, allocations: 3.27 MB / 1.204 GB, free: 262.7 MB / 0.8262 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 4 * Number of states: 10 (hea1.vol.dynBal.U,hea2.vol.dynBal.U,hea3.vol.dynBal.U,hea4.vol.dynBal.U,mix1.dynBal.U,hea5.vol.dynBal.U,hea6.vol.dynBal.U,hea7.vol.dynBal.U,hea8.vol.dynBal.U,mix2.dynBal.U) * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (219): * Single equations (assignments): 181 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 34 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 4 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 4 systems {(1,9), (1,7), (1,9), (1,7)} Notification: Performance of Backend phase and start with SimCode phase: time 0.007256/1.525, allocations: 6.184 MB / 1.21 GB, free: 256.8 MB / 0.8262 GB Notification: Performance of simCode: created initialization part: time 0.005816/1.531, allocations: 4.429 MB / 1.215 GB, free: 252.4 MB / 0.8262 GB Notification: Performance of simCode: created event and clocks part: time 6.853e-06/1.531, allocations: 4 kB / 1.215 GB, free: 252.4 MB / 0.8262 GB Notification: Performance of simCode: created simulation system equations: time 0.001526/1.532, allocations: 1.245 MB / 1.216 GB, free: 251.1 MB / 0.8262 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.01056/1.543, allocations: 2.639 MB / 1.218 GB, free: 248.7 MB / 0.8262 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.04118/1.584, allocations: 32.03 MB / 1.25 GB, free: 215.6 MB / 0.8262 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001572/1.586, allocations: 2.873 MB / 1.253 GB, free: 212.6 MB / 0.8262 GB Notification: Performance of simCode: alias equations: time 0.003474/1.589, allocations: 1.156 MB / 1.254 GB, free: 211.5 MB / 0.8262 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.002119/1.591, allocations: 2.534 MB / 1.256 GB, free: 209 MB / 0.8262 GB Notification: Performance of SimCode: time 6.71e-07/1.591, allocations: 0 / 1.256 GB, free: 209 MB / 0.8262 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.9198/2.511, allocations: 145.6 MB / 1.398 GB, free: 64.65 MB / 0.8262 GB Notification: Performance of buildModelFMU: Generate platform static: time 24.72/27.23, allocations: 12 kB / 1.398 GB, free: 64.64 MB / 0.8262 GB (rm -f IDEAS_IDEAS.Fluid.Interfaces.Examples.HeaterCooler_u.pipe ; mkfifo IDEAS_IDEAS.Fluid.Interfaces.Examples.HeaterCooler_u.pipe ; head -c 1048576 < IDEAS_IDEAS.Fluid.Interfaces.Examples.HeaterCooler_u.pipe >> ../files/IDEAS_IDEAS.Fluid.Interfaces.Examples.HeaterCooler_u.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_IDEAS_IDEAS_Fluid_Interfaces_Examples_HeaterCooler_u_fmu --startTime=0 --stopTime=3600 --timeout=50 --tolerance=1e-06 IDEAS_IDEAS_Fluid_Interfaces_Examples_HeaterCooler_u.fmu > IDEAS_IDEAS.Fluid.Interfaces.Examples.HeaterCooler_u.pipe 2>&1)