Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_maint.7.0.x_Buildings.Fluid.Storage.BaseClasses.Examples.IndirectTankHeatExchanger.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 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo", uses=false) Using package Buildings with version 7.0.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo) Using package Modelica with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+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: translateModel(Buildings.Fluid.Storage.BaseClasses.Examples.IndirectTankHeatExchanger,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Fluid.Storage.BaseClasses.Examples.IndirectTankHeatExchanger") translateModel(Buildings.Fluid.Storage.BaseClasses.Examples.IndirectTankHeatExchanger,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Fluid.Storage.BaseClasses.Examples.IndirectTankHeatExchanger") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001514/0.001514, allocations: 115.3 kB / 15.34 MB, free: 0.5156 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001795/0.001795, allocations: 191.8 kB / 16.25 MB, free: 6.629 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.633/1.633, allocations: 205.1 MB / 222.1 MB, free: 4.727 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo): time 1.514/1.514, allocations: 251.7 MB / 0.5089 GB, free: 3.305 MB / 414.1 MB Notification: Modelica requested package Complex of version 3.2.3. Complex 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Modelica requested package ModelicaServices of version 3.2.3. ModelicaServices 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.001495/0.001495, allocations: 63.91 kB / 0.6217 GB, free: 1.863 MB / 0.5137 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.6567/0.6583, allocations: 104.7 MB / 0.724 GB, free: 13.1 MB / 0.545 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Storage.BaseClasses.Examples.IndirectTankHeatExchanger): time 0.02735/0.6856, allocations: 28.4 MB / 0.7517 GB, free: 0.5938 MB / 0.5606 GB Notification: Performance of NFInst.instExpressions: time 0.01169/0.6974, allocations: 7.772 MB / 0.7593 GB, free: 8.797 MB / 0.5762 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001696/0.6991, allocations: 27.81 kB / 0.7593 GB, free: 8.77 MB / 0.5762 GB Notification: Performance of NFTyping.typeComponents: time 0.001304/0.7005, allocations: 342.1 kB / 0.7597 GB, free: 8.434 MB / 0.5762 GB Notification: Performance of NFTyping.typeBindings: time 0.003205/0.7038, allocations: 0.9331 MB / 0.7606 GB, free: 7.496 MB / 0.5762 GB Notification: Performance of NFTyping.typeClassSections: time 0.002891/0.7067, allocations: 0.9615 MB / 0.7615 GB, free: 6.543 MB / 0.5762 GB Notification: Performance of NFFlatten.flatten: time 0.005234/0.7119, allocations: 4.892 MB / 0.7663 GB, free: 1.637 MB / 0.5762 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002791/0.7147, allocations: 2.25 MB / 0.7685 GB, free: 15.35 MB / 0.5919 GB Notification: Performance of NFEvalConstants.evaluate: time 0.004255/0.719, allocations: 1.798 MB / 0.7702 GB, free: 13.55 MB / 0.5919 GB Notification: Performance of NFSimplifyModel.simplify: time 0.002505/0.7215, allocations: 1.478 MB / 0.7717 GB, free: 12.07 MB / 0.5919 GB Notification: Performance of NFPackage.collectConstants: time 0.0004213/0.7219, allocations: 224 kB / 0.7719 GB, free: 11.85 MB / 0.5919 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002848/0.7248, allocations: 1.318 MB / 0.7732 GB, free: 10.53 MB / 0.5919 GB Notification: Performance of NFScalarize.scalarize: time 0.0005705/0.7254, allocations: 0.5453 MB / 0.7737 GB, free: 9.98 MB / 0.5919 GB Notification: Performance of NFVerifyModel.verify: time 0.001702/0.7271, allocations: 1.147 MB / 0.7748 GB, free: 8.828 MB / 0.5919 GB Notification: Performance of NFConvertDAE.convert: time 0.004492/0.7316, allocations: 3.603 MB / 0.7784 GB, free: 5.215 MB / 0.5919 GB Notification: Performance of FrontEnd - DAE generated: time 5.099e-06/0.7316, allocations: 0 / 0.7784 GB, free: 5.215 MB / 0.5919 GB Notification: Performance of FrontEnd: time 2.504e-06/0.7316, allocations: 0 / 0.7784 GB, free: 5.215 MB / 0.5919 GB Notification: Performance of Transformations before backend: time 6.252e-05/0.7317, allocations: 0 / 0.7784 GB, free: 5.215 MB / 0.5919 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 348 * Number of variables: 348 Notification: Performance of Generate backend data structure: time 0.005029/0.7367, allocations: 2.534 MB / 0.7808 GB, free: 2.625 MB / 0.5919 GB Notification: Performance of prepare preOptimizeDAE: time 4.41e-05/0.7368, allocations: 8.031 kB / 0.7808 GB, free: 2.617 MB / 0.5919 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0008311/0.7376, allocations: 230.5 kB / 0.7811 GB, free: 2.391 MB / 0.5919 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002643/0.7403, allocations: 1.735 MB / 0.7828 GB, free: 0.6016 MB / 0.5919 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 7.532e-05/0.7404, allocations: 118.7 kB / 0.7829 GB, free: 496 kB / 0.5919 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002206/0.7406, allocations: 152 kB / 0.783 GB, free: 344 kB / 0.5919 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.003026/0.7436, allocations: 1.978 MB / 0.7849 GB, free: 14.29 MB / 0.6075 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.619e-05/0.7437, allocations: 3.984 kB / 0.7849 GB, free: 14.29 MB / 0.6075 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001312/0.7438, allocations: 60 kB / 0.785 GB, free: 14.23 MB / 0.6075 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.729e-05/0.7439, allocations: 36 kB / 0.785 GB, free: 14.2 MB / 0.6075 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002491/0.7464, allocations: 1.798 MB / 0.7868 GB, free: 12.39 MB / 0.6075 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 0.0117/0.7581, allocations: 7.574 MB / 0.7942 GB, free: 4.508 MB / 0.6075 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001758/0.7599, allocations: 1.44 MB / 0.7956 GB, free: 3.047 MB / 0.6075 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0008122/0.7607, allocations: 0.6603 MB / 0.7962 GB, free: 2.383 MB / 0.6075 GB Notification: Performance of preOpt evalFunc (simulation): time 0.006313/0.767, allocations: 3.827 MB / 0.8 GB, free: 14.23 MB / 0.6231 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4e-05/0.7671, allocations: 43.56 kB / 0.8 GB, free: 14.18 MB / 0.6231 GB Notification: Performance of pre-optimization done (n=88): time 3.397e-06/0.7671, allocations: 0 / 0.8 GB, free: 14.18 MB / 0.6231 GB Notification: Performance of matching and sorting (n=88): time 0.002563/0.7697, allocations: 1.51 MB / 0.8015 GB, free: 12.67 MB / 0.6231 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.346e-05/0.7698, allocations: 68.34 kB / 0.8016 GB, free: 12.59 MB / 0.6231 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002397/0.7722, allocations: 1.585 MB / 0.8031 GB, free: 11 MB / 0.6231 GB Notification: Performance of collectPreVariables (initialization): time 0.0001636/0.7723, allocations: 49.7 kB / 0.8032 GB, free: 10.94 MB / 0.6231 GB Notification: Performance of collectInitialEqns (initialization): time 0.0006496/0.773, allocations: 0.7496 MB / 0.8039 GB, free: 10.18 MB / 0.6231 GB Notification: Performance of collectInitialBindings (initialization): time 0.0003382/0.7733, allocations: 311.5 kB / 0.8042 GB, free: 9.875 MB / 0.6231 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004683/0.7738, allocations: 291.3 kB / 0.8045 GB, free: 9.586 MB / 0.6231 GB Notification: Performance of setup shared object (initialization): time 0.0001328/0.774, allocations: 365.9 kB / 0.8048 GB, free: 9.223 MB / 0.6231 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0009782/0.7749, allocations: 0.6956 MB / 0.8055 GB, free: 8.523 MB / 0.6231 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001197/0.7762, allocations: 1.02 MB / 0.8065 GB, free: 7.371 MB / 0.6231 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.002068/0.7782, allocations: 1.624 MB / 0.8081 GB, free: 5.621 MB / 0.6231 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.196e-05/0.7783, allocations: 7.938 kB / 0.8081 GB, free: 5.613 MB / 0.6231 GB Notification: Performance of matching and sorting (n=175) (initialization): time 0.003138/0.7814, allocations: 1.944 MB / 0.81 GB, free: 3.66 MB / 0.6231 GB Notification: Performance of prepare postOptimizeDAE: time 2.921e-05/0.7814, allocations: 8 kB / 0.81 GB, free: 3.652 MB / 0.6231 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.222e-05/0.7815, allocations: 16.12 kB / 0.81 GB, free: 3.637 MB / 0.6231 GB Notification: Performance of postOpt tearingSystem (initialization): time 3.211e-05/0.7815, allocations: 16 kB / 0.81 GB, free: 3.621 MB / 0.6231 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001216/0.7827, allocations: 335.5 kB / 0.8103 GB, free: 3.293 MB / 0.6231 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 3.864e-05/0.7828, allocations: 19.94 kB / 0.8104 GB, free: 3.273 MB / 0.6231 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001517/0.7843, allocations: 214.1 kB / 0.8106 GB, free: 3.062 MB / 0.6231 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001417/0.7845, allocations: 59.98 kB / 0.8106 GB, free: 3.004 MB / 0.6231 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.00187/0.7863, allocations: 1.28 MB / 0.8119 GB, free: 1.719 MB / 0.6231 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.001206/0.7876, allocations: 1.016 MB / 0.8129 GB, free: 0.5781 MB / 0.6231 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001991/0.7896, allocations: 1.62 MB / 0.8144 GB, free: 14.84 MB / 0.6387 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.059e-05/0.7896, allocations: 4 kB / 0.8144 GB, free: 14.83 MB / 0.6387 GB Notification: Performance of matching and sorting (n=175) (initialization_lambda0): time 0.003079/0.7927, allocations: 1.948 MB / 0.8163 GB, free: 12.88 MB / 0.6387 GB Notification: Performance of prepare postOptimizeDAE: time 1.978e-05/0.7927, allocations: 8 kB / 0.8164 GB, free: 12.87 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.365e-05/0.7927, allocations: 8 kB / 0.8164 GB, free: 12.86 MB / 0.6387 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.909e-05/0.7927, allocations: 16 kB / 0.8164 GB, free: 12.84 MB / 0.6387 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001166/0.7939, allocations: 343.4 kB / 0.8167 GB, free: 12.51 MB / 0.6387 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 3.064e-05/0.794, allocations: 23.92 kB / 0.8167 GB, free: 12.48 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001385/0.7953, allocations: 171 kB / 0.8169 GB, free: 12.32 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001489/0.7955, allocations: 59.98 kB / 0.8169 GB, free: 12.26 MB / 0.6387 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 40 * 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 (175): * Single equations (assignments): 175 * Array equations: 0 * Algorithm blocks: 0 * 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 0.0004122/0.7959, allocations: 255.8 kB / 0.8172 GB, free: 12 MB / 0.6387 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0004946/0.7964, allocations: 150.1 kB / 0.8173 GB, free: 11.85 MB / 0.6387 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002063/0.7985, allocations: 1.282 MB / 0.8186 GB, free: 10.56 MB / 0.6387 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.828e-05/0.7985, allocations: 12 kB / 0.8186 GB, free: 10.55 MB / 0.6387 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.813e-06/0.7985, allocations: 0 / 0.8186 GB, free: 10.55 MB / 0.6387 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.001401/0.8, allocations: 1.288 MB / 0.8199 GB, free: 9.172 MB / 0.6387 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.004642/0.8046, allocations: 2.919 MB / 0.8227 GB, free: 6.176 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 9.899e-06/0.8047, allocations: 0 / 0.8227 GB, free: 6.176 MB / 0.6387 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0008605/0.8055, allocations: 183.9 kB / 0.8229 GB, free: 5.996 MB / 0.6387 GB Notification: Performance of postOpt tearingSystem (simulation): time 3.206e-05/0.8056, allocations: 12.11 kB / 0.8229 GB, free: 5.984 MB / 0.6387 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001022/0.8057, allocations: 24 kB / 0.8229 GB, free: 5.961 MB / 0.6387 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.096e-05/0.8057, allocations: 4 kB / 0.8229 GB, free: 5.957 MB / 0.6387 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 7.494e-06/0.8058, allocations: 7.875 kB / 0.8229 GB, free: 5.949 MB / 0.6387 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003267/0.809, allocations: 1.909 MB / 0.8248 GB, free: 4.008 MB / 0.6387 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001275/0.8103, allocations: 394.8 kB / 0.8252 GB, free: 3.602 MB / 0.6387 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0006211/0.811, allocations: 31.92 kB / 0.8252 GB, free: 3.57 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001316/0.8123, allocations: 71.83 kB / 0.8253 GB, free: 3.5 MB / 0.6387 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001206/0.8124, allocations: 60.73 kB / 0.8253 GB, free: 3.438 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001021/0.8125, allocations: 35.98 kB / 0.8254 GB, free: 3.402 MB / 0.6387 GB Notification: Performance of sorting global known variables: time 0.002296/0.8149, allocations: 1.19 MB / 0.8265 GB, free: 2.215 MB / 0.6387 GB Notification: Performance of sort global known variables: time 2.41e-07/0.8149, allocations: 0 / 0.8265 GB, free: 2.215 MB / 0.6387 GB Notification: Performance of remove unused functions: time 0.00313/0.818, allocations: 0.9045 MB / 0.8274 GB, free: 1.309 MB / 0.6387 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * Number of states: 6 (indTanHex.vol[1].dynBal.U,indTanHex.vol[2].dynBal.U,indTanHex.vol[3].dynBal.U,indTanHex.cap[1].T,indTanHex.cap[2].T,indTanHex.cap[3].T) * 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 (89): * Single equations (assignments): 87 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 2 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.001272/0.8193, allocations: 355.5 kB / 0.8277 GB, free: 0.9609 MB / 0.6387 GB Notification: Performance of simCode: created initialization part: time 0.005018/0.8243, allocations: 2.832 MB / 0.8305 GB, free: 14.13 MB / 0.6544 GB Notification: Performance of simCode: created event and clocks part: time 7.634e-06/0.8243, allocations: 0 / 0.8305 GB, free: 14.13 MB / 0.6544 GB Notification: Performance of simCode: created simulation system equations: time 0.0007255/0.8251, allocations: 0.5209 MB / 0.831 GB, free: 13.62 MB / 0.6544 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.004403/0.8295, allocations: 0.9205 MB / 0.8319 GB, free: 12.73 MB / 0.6544 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.008282/0.8378, allocations: 4.272 MB / 0.8361 GB, free: 8.414 MB / 0.6544 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001871/0.8397, allocations: 1.661 MB / 0.8377 GB, free: 6.723 MB / 0.6544 GB Notification: Performance of simCode: alias equations: time 0.003474/0.8432, allocations: 0.9017 MB / 0.8386 GB, free: 5.836 MB / 0.6544 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.000578/0.8438, allocations: 131.4 kB / 0.8387 GB, free: 5.707 MB / 0.6544 GB Notification: Performance of SimCode: time 8.82e-07/0.8438, allocations: 3.938 kB / 0.8387 GB, free: 5.703 MB / 0.6544 GB Notification: Performance of Templates: time 0.05966/0.9035, allocations: 34.95 MB / 0.8729 GB, free: 3.199 MB / 0.6856 GB make -j1 -f Buildings_maint.7.0.x_Buildings.Fluid.Storage.BaseClasses.Examples.IndirectTankHeatExchanger.makefile (rm -f Buildings_maint.7.0.x_Buildings.Fluid.Storage.BaseClasses.Examples.IndirectTankHeatExchanger.pipe ; mkfifo Buildings_maint.7.0.x_Buildings.Fluid.Storage.BaseClasses.Examples.IndirectTankHeatExchanger.pipe ; head -c 1048576 < Buildings_maint.7.0.x_Buildings.Fluid.Storage.BaseClasses.Examples.IndirectTankHeatExchanger.pipe >> ../files/Buildings_maint.7.0.x_Buildings.Fluid.Storage.BaseClasses.Examples.IndirectTankHeatExchanger.sim & ./Buildings_maint.7.0.x_Buildings.Fluid.Storage.BaseClasses.Examples.IndirectTankHeatExchanger -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_maint.7.0.x_Buildings.Fluid.Storage.BaseClasses.Examples.IndirectTankHeatExchanger.pipe 2>&1)