Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr BuildSysPro_BuildSysPro.IBPSA.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/BuildSysPro 3.6.0/package.mo", uses=false) Using package BuildSysPro with version 3.5.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.6.0/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(BuildSysPro.IBPSA.Fluid.Interfaces.Examples.HeaterCooler_u,fileNamePrefix="BuildSysPro_BuildSysPro_IBPSA_Fluid_Interfaces_Examples_HeaterCooler_u",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(BuildSysPro.IBPSA.Fluid.Interfaces.Examples.HeaterCooler_u,fileNamePrefix="BuildSysPro_BuildSysPro_IBPSA_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 0.0009287/0.0009287, allocations: 91.84 kB / 15.36 MB, free: 0.7383 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.006218/0.006219, allocations: 170 kB / 16.26 MB, free: 6.613 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.359/1.359, allocations: 223.3 MB / 240.3 MB, free: 5.34 MB / 190.1 MB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.6.0/Building/BuildingEnvelope/HeatTransfer/package.mo:2:1-40:17:writable] Warning: Soil_case_nappe was referenced in the package.order file, but was not found in package.mo, Soil_case_nappe/package.mo or Soil_case_nappe.mo. Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.6.0/package.mo): time 1.02/1.02, allocations: 143.2 MB / 434.6 MB, free: 13.71 MB / 350.1 MB Notification: Performance of FrontEnd - loaded program: time 0.0003233/0.0003234, allocations: 11.98 kB / 0.5165 GB, free: 11.04 MB / 430.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1492/0.1495, allocations: 83.42 MB / 0.598 GB, free: 7.586 MB / 0.4981 GB Notification: Performance of NFInst.instantiate(BuildSysPro.IBPSA.Fluid.Interfaces.Examples.HeaterCooler_u): time 0.8947/1.044, allocations: 294.1 MB / 0.8852 GB, free: 53.23 MB / 0.67 GB Notification: Performance of NFInst.instExpressions: time 0.06328/1.108, allocations: 49.77 MB / 0.9338 GB, free: 52.46 MB / 0.67 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.01018/1.118, allocations: 262.9 kB / 0.934 GB, free: 52.46 MB / 0.67 GB Notification: Performance of NFTyping.typeComponents: time 0.009505/1.127, allocations: 2.776 MB / 0.9367 GB, free: 52.4 MB / 0.67 GB Notification: Performance of NFTyping.typeBindings: time 0.02614/1.153, allocations: 8.426 MB / 0.945 GB, free: 51.89 MB / 0.67 GB Notification: Performance of NFTyping.typeClassSections: time 0.01781/1.171, allocations: 6.014 MB / 0.9508 GB, free: 50.76 MB / 0.67 GB Notification: Performance of NFFlatten.flatten: time 0.03/1.201, allocations: 24.59 MB / 0.9748 GB, free: 38.14 MB / 0.67 GB Notification: Performance of NFFlatten.resolveConnections: time 0.009354/1.211, allocations: 4.713 MB / 0.9794 GB, free: 35.4 MB / 0.67 GB Notification: Performance of NFEvalConstants.evaluate: time 0.01638/1.227, allocations: 6.189 MB / 0.9855 GB, free: 32.11 MB / 0.67 GB Notification: Performance of NFSimplifyModel.simplify: time 0.009201/1.236, allocations: 4.906 MB / 0.9903 GB, free: 27.64 MB / 0.67 GB Notification: Performance of NFPackage.collectConstants: time 0.001712/1.238, allocations: 228 kB / 0.9905 GB, free: 27.41 MB / 0.67 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0124/1.251, allocations: 3.911 MB / 0.9943 GB, free: 23.79 MB / 0.67 GB Notification: Performance of NFScalarize.scalarize: time 0.002757/1.253, allocations: 1.126 MB / 0.9954 GB, free: 22.7 MB / 0.67 GB Notification: Performance of NFVerifyModel.verify: time 0.00668/1.26, allocations: 3.321 MB / 0.9987 GB, free: 19.39 MB / 0.67 GB Notification: Performance of NFConvertDAE.convert: time 0.01559/1.276, allocations: 10.37 MB / 1.009 GB, free: 9.461 MB / 0.67 GB Notification: Performance of FrontEnd - DAE generated: time 4.809e-06/1.276, allocations: 0 / 1.009 GB, free: 9.461 MB / 0.67 GB Notification: Performance of FrontEnd: time 2.514e-06/1.276, allocations: 4 kB / 1.009 GB, free: 9.457 MB / 0.67 GB Notification: Performance of Transformations before backend: time 0.0002594/1.276, allocations: 0 / 1.009 GB, free: 9.457 MB / 0.67 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 0.00911/1.285, allocations: 6.207 MB / 1.015 GB, free: 3.199 MB / 0.67 GB Notification: Performance of prepare preOptimizeDAE: time 3.978e-05/1.285, allocations: 8.031 kB / 1.015 GB, free: 3.191 MB / 0.67 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0009376/1.286, allocations: 0.5392 MB / 1.015 GB, free: 2.648 MB / 0.67 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001867/1.288, allocations: 0.7841 MB / 1.016 GB, free: 1.855 MB / 0.67 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.009439/1.297, allocations: 5.244 MB / 1.021 GB, free: 12.7 MB / 0.6856 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002953/1.298, allocations: 316.1 kB / 1.022 GB, free: 12.39 MB / 0.6856 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0007817/1.299, allocations: 442.3 kB / 1.022 GB, free: 11.96 MB / 0.6856 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.008074/1.307, allocations: 4.382 MB / 1.026 GB, free: 7.305 MB / 0.6856 GB Notification: Performance of preOpt findStateOrder (simulation): time 8.723e-05/1.307, allocations: 19.78 kB / 1.026 GB, free: 7.285 MB / 0.6856 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0003681/1.307, allocations: 172 kB / 1.026 GB, free: 7.117 MB / 0.6856 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001264/1.307, allocations: 120 kB / 1.027 GB, free: 7 MB / 0.6856 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.00529/1.313, allocations: 2.972 MB / 1.029 GB, free: 4.023 MB / 0.6856 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 0.02512/1.338, allocations: 25.09 MB / 1.054 GB, free: 9.078 MB / 0.7169 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002963/1.341, allocations: 2.765 MB / 1.057 GB, free: 6.121 MB / 0.7169 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001389/1.342, allocations: 1.003 MB / 1.058 GB, free: 5.121 MB / 0.7169 GB Notification: Performance of preOpt evalFunc (simulation): time 0.003454/1.346, allocations: 3.924 MB / 1.061 GB, free: 352 kB / 0.7169 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.937e-05/1.346, allocations: 64.5 kB / 1.062 GB, free: 280 kB / 0.7169 GB Notification: Performance of pre-optimization done (n=217): time 4.589e-06/1.346, allocations: 4 kB / 1.062 GB, free: 276 kB / 0.7169 GB Notification: Performance of matching and sorting (n=217): time 0.01098/1.357, allocations: 4.118 MB / 1.066 GB, free: 12.07 MB / 0.7325 GB Notification: Performance of inlineWhenForInitialization (initialization): time 6.352e-05/1.357, allocations: 73.41 kB / 1.066 GB, free: 11.98 MB / 0.7325 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.007856/1.365, allocations: 4.228 MB / 1.07 GB, free: 7.777 MB / 0.7325 GB Notification: Performance of collectPreVariables (initialization): time 0.000608/1.365, allocations: 81.7 kB / 1.07 GB, free: 7.691 MB / 0.7325 GB Notification: Performance of collectInitialEqns (initialization): time 0.002319/1.368, allocations: 2.806 MB / 1.073 GB, free: 4.879 MB / 0.7325 GB Notification: Performance of collectInitialBindings (initialization): time 0.001002/1.369, allocations: 0.7636 MB / 1.073 GB, free: 4.117 MB / 0.7325 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002706/1.369, allocations: 223.6 kB / 1.074 GB, free: 3.895 MB / 0.7325 GB Notification: Performance of setup shared object (initialization): time 9.438e-05/1.369, allocations: 313.1 kB / 1.074 GB, free: 3.586 MB / 0.7325 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001398/1.37, allocations: 0.8138 MB / 1.075 GB, free: 2.77 MB / 0.7325 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.002001/1.372, allocations: 1.822 MB / 1.076 GB, free: 0.5117 MB / 0.7325 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.003271/1.376, allocations: 2.522 MB / 1.079 GB, free: 13.66 MB / 0.7481 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.291e-05/1.376, allocations: 8 kB / 1.079 GB, free: 13.66 MB / 0.7481 GB Notification: Performance of matching and sorting (n=365) (initialization): time 0.007496/1.383, allocations: 3.577 MB / 1.082 GB, free: 10.02 MB / 0.7481 GB Notification: Performance of prepare postOptimizeDAE: time 0.0004596/1.384, allocations: 0.7359 MB / 1.083 GB, free: 8.98 MB / 0.7481 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.791e-05/1.384, allocations: 24 kB / 1.083 GB, free: 8.957 MB / 0.7481 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.002517/1.386, allocations: 0.5976 MB / 1.084 GB, free: 8.355 MB / 0.7481 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00179/1.388, allocations: 0.5538 MB / 1.084 GB, free: 7.801 MB / 0.7481 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001969/1.39, allocations: 2.689 MB / 1.087 GB, free: 5.008 MB / 0.7481 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004595/1.395, allocations: 0.6024 MB / 1.087 GB, free: 4.402 MB / 0.7481 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.000347/1.395, allocations: 139.9 kB / 1.088 GB, free: 4.266 MB / 0.7481 GB Notification: Performance of prepare postOptimizeDAE: time 1.165e-05/1.395, allocations: 5.094 kB / 1.088 GB, free: 4.262 MB / 0.7481 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.004836/1.4, allocations: 2.817 MB / 1.09 GB, free: 1.391 MB / 0.7481 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.693e-05/1.4, allocations: 20 kB / 1.09 GB, free: 1.371 MB / 0.7481 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0009512/1.401, allocations: 375.4 kB / 1.091 GB, free: 0.9961 MB / 0.7481 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001614/1.403, allocations: 0.5538 MB / 1.091 GB, free: 452 kB / 0.7481 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.008192/1.411, allocations: 7.725 MB / 1.099 GB, free: 8.145 MB / 0.7637 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005487/1.416, allocations: 0.548 MB / 1.099 GB, free: 7.598 MB / 0.7637 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004641/1.417, allocations: 132 kB / 1.099 GB, free: 7.469 MB / 0.7637 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 0.002276/1.419, allocations: 1.016 MB / 1.1 GB, free: 6.441 MB / 0.7637 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001278/1.42, allocations: 0.5055 MB / 1.101 GB, free: 5.93 MB / 0.7637 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.006113/1.426, allocations: 3.593 MB / 1.104 GB, free: 2.285 MB / 0.7637 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.59e-05/1.427, allocations: 39.97 kB / 1.105 GB, free: 2.246 MB / 0.7637 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.702e-06/1.427, allocations: 4 kB / 1.105 GB, free: 2.242 MB / 0.7637 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.003614/1.43, allocations: 2.454 MB / 1.107 GB, free: 15.74 MB / 0.7794 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 0.01297/1.443, allocations: 8.257 MB / 1.115 GB, free: 7.273 MB / 0.7794 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 9.378e-06/1.443, allocations: 0 / 1.115 GB, free: 7.273 MB / 0.7794 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001274/1.444, allocations: 371.6 kB / 1.115 GB, free: 6.91 MB / 0.7794 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.00068/1.445, allocations: 310.5 kB / 1.116 GB, free: 6.602 MB / 0.7794 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001258/1.445, allocations: 59.97 kB / 1.116 GB, free: 6.543 MB / 0.7794 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001537/1.447, allocations: 2.498 MB / 1.118 GB, free: 3.945 MB / 0.7794 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.509e-06/1.447, allocations: 4 kB / 1.118 GB, free: 3.941 MB / 0.7794 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.006715/1.454, allocations: 4.369 MB / 1.122 GB, free: 15.5 MB / 0.795 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002471/1.456, allocations: 0.9972 MB / 1.123 GB, free: 14.47 MB / 0.795 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0008095/1.457, allocations: 47.94 kB / 1.123 GB, free: 14.43 MB / 0.795 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003339/1.46, allocations: 426.6 kB / 1.124 GB, free: 14.01 MB / 0.795 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000223/1.46, allocations: 149.8 kB / 1.124 GB, free: 13.87 MB / 0.795 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002195/1.461, allocations: 111.9 kB / 1.124 GB, free: 13.76 MB / 0.795 GB Notification: Performance of sorting global known variables: time 0.00422/1.465, allocations: 2.797 MB / 1.127 GB, free: 10.99 MB / 0.795 GB Notification: Performance of sort global known variables: time 2.51e-07/1.465, allocations: 0 / 1.127 GB, free: 10.99 MB / 0.795 GB Notification: Performance of remove unused functions: time 0.01066/1.476, allocations: 3.269 MB / 1.13 GB, free: 7.711 MB / 0.795 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 0.009859/1.486, allocations: 6.201 MB / 1.136 GB, free: 1.562 MB / 0.795 GB Notification: Performance of simCode: created initialization part: time 0.007629/1.493, allocations: 4.442 MB / 1.14 GB, free: 13.07 MB / 0.8106 GB Notification: Performance of simCode: created event and clocks part: time 8.987e-06/1.493, allocations: 2.391 kB / 1.14 GB, free: 13.07 MB / 0.8106 GB Notification: Performance of simCode: created simulation system equations: time 0.002039/1.495, allocations: 1.245 MB / 1.142 GB, free: 11.82 MB / 0.8106 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.01496/1.51, allocations: 2.637 MB / 1.144 GB, free: 9.211 MB / 0.8106 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.3648/1.875, allocations: 44.87 MB / 1.188 GB, free: 309.2 MB / 0.8106 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.004025/1.879, allocations: 2.873 MB / 1.191 GB, free: 308.3 MB / 0.8106 GB Notification: Performance of simCode: alias equations: time 0.008531/1.888, allocations: 1.174 MB / 1.192 GB, free: 308.1 MB / 0.8106 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.004489/1.892, allocations: 2.529 MB / 1.194 GB, free: 306.2 MB / 0.8106 GB Notification: Performance of SimCode: time 1.062e-06/1.892, allocations: 0 / 1.194 GB, free: 306.2 MB / 0.8106 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.2498/2.142, allocations: 144 MB / 1.335 GB, free: 201.5 MB / 0.8106 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0001658/2.142, allocations: 286 kB / 1.335 GB, free: 201.1 MB / 0.8106 GB Notification: Performance of buildModelFMU: Generate platform static: time 5.841/7.984, allocations: 64 / 1.335 GB, free: 201.1 MB / 0.8106 GB (rm -f BuildSysPro_BuildSysPro.IBPSA.Fluid.Interfaces.Examples.HeaterCooler_u.pipe ; mkfifo BuildSysPro_BuildSysPro.IBPSA.Fluid.Interfaces.Examples.HeaterCooler_u.pipe ; head -c 1048576 < BuildSysPro_BuildSysPro.IBPSA.Fluid.Interfaces.Examples.HeaterCooler_u.pipe >> ../files/BuildSysPro_BuildSysPro.IBPSA.Fluid.Interfaces.Examples.HeaterCooler_u.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --tempDir=temp_BuildSysPro_BuildSysPro_IBPSA_Fluid_Interfaces_Examples_HeaterCooler_u_fmu --startTime=0 --stopTime=3600 --timeout=50 --tolerance=1e-06 BuildSysPro_BuildSysPro_IBPSA_Fluid_Interfaces_Examples_HeaterCooler_u.fmu > BuildSysPro_BuildSysPro.IBPSA.Fluid.Interfaces.Examples.HeaterCooler_u.pipe 2>&1)