Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr BuildingSystems_BuildingSystems.Fluid.HeatExchangers.Validation.EvaporatorCondenser.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/NcDataReader2 2.5.1-master/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo", uses=false) Using package BuildingSystems with version 2.0.0-beta (/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo) Using package NcDataReader2 with version 2.5.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-master/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: translateModel(BuildingSystems.Fluid.HeatExchangers.Validation.EvaporatorCondenser,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="BuildingSystems_BuildingSystems.Fluid.HeatExchangers.Validation.EvaporatorCondenser") translateModel(BuildingSystems.Fluid.HeatExchangers.Validation.EvaporatorCondenser,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="BuildingSystems_BuildingSystems.Fluid.HeatExchangers.Validation.EvaporatorCondenser") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0009214/0.0009215, allocations: 99.47 kB / 15.05 MB, free: 1.105 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.000825/0.000825, allocations: 177.3 kB / 15.95 MB, free: 216 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.157/1.157, allocations: 223.2 MB / 239.9 MB, free: 5.449 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-master/package.mo): time 0.001807/0.001807, allocations: 278.7 kB / 291.3 MB, free: 1.996 MB / 238.1 MB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/Buildings/Airvolumes/Parameter/package.mo:5:3-5:34:writable] Warning: Got element f_alp that was not referenced in the package.order file. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/Buildings/Airvolumes/Parameter/package.mo:6:3-6:35:writable] Warning: Elements in the package.mo-file need to be in the same relative order as the package.order file. Got element named f_lay but it was already added because it was not the next element in the list at that time. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/Buildings/Airvolumes/Parameter/package.mo:6:3-6:35:writable] Warning: Got element f_lay that was not referenced in the package.order file. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/Buildings/Airvolumes/Parameter/package.mo:7:3-7:37:writable] Warning: Elements in the package.mo-file need to be in the same relative order as the package.order file. Got element named f_loss but it was already added because it was not the next element in the list at that time. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/Buildings/Airvolumes/Parameter/package.mo:7:3-7:37:writable] Warning: Got element f_loss that was not referenced in the package.order file. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/Buildings/Airvolumes/Parameter/package.mo:8:3-8:33:writable] Warning: Elements in the package.mo-file need to be in the same relative order as the package.order file. Got element named f_pv but it was already added because it was not the next element in the list at that time. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/Buildings/Airvolumes/Parameter/package.mo:8:3-8:33:writable] Warning: Got element f_pv that was not referenced in the package.order file. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/Buildings/Airvolumes/Parameter/package.mo:2:1-34:14:writable] Warning: f_pv was referenced in the package.order file, but was not found in package.mo, f_pv/package.mo or f_pv.mo. Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo): time 0.7212/0.7212, allocations: 144.6 MB / 487 MB, free: 7.176 MB / 350.1 MB Notification: Performance of FrontEnd - loaded program: time 0.0004045/0.0004046, allocations: 20.38 kB / 0.5683 GB, free: 38.29 MB / 430.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1253/0.1257, allocations: 83.08 MB / 0.6494 GB, free: 3.625 MB / 446.1 MB Notification: Performance of NFInst.instantiate(BuildingSystems.Fluid.HeatExchangers.Validation.EvaporatorCondenser): time 0.02572/0.1515, allocations: 30.03 MB / 0.6787 GB, free: 5.555 MB / 478.1 MB Notification: Performance of NFInst.instExpressions: time 0.007919/0.1595, allocations: 6.597 MB / 0.6852 GB, free: 14.95 MB / 494.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0005586/0.16, allocations: 23.81 kB / 0.6852 GB, free: 14.92 MB / 494.1 MB Notification: Performance of NFTyping.typeComponents: time 0.0008066/0.1609, allocations: 358.2 kB / 0.6856 GB, free: 14.57 MB / 494.1 MB Notification: Performance of NFTyping.typeBindings: time 0.002089/0.163, allocations: 1.118 MB / 0.6866 GB, free: 13.45 MB / 494.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.002186/0.1651, allocations: 1.017 MB / 0.6876 GB, free: 12.45 MB / 494.1 MB Notification: Performance of NFFlatten.flatten: time 0.001365/0.1665, allocations: 1.253 MB / 0.6889 GB, free: 11.19 MB / 494.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.0006172/0.1672, allocations: 0.5388 MB / 0.6894 GB, free: 10.64 MB / 494.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0008954/0.1681, allocations: 0.6579 MB / 0.69 GB, free: 9.977 MB / 494.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.0004594/0.1685, allocations: 410.2 kB / 0.6904 GB, free: 9.574 MB / 494.1 MB Notification: Performance of NFPackage.collectConstants: time 6.772e-05/0.1686, allocations: 32 kB / 0.6905 GB, free: 9.543 MB / 494.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.000801/0.1694, allocations: 435.4 kB / 0.6909 GB, free: 9.117 MB / 494.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0001398/0.1696, allocations: 143.4 kB / 0.691 GB, free: 8.977 MB / 494.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0001506/0.1697, allocations: 205.2 kB / 0.6912 GB, free: 8.77 MB / 494.1 MB Notification: Performance of NFConvertDAE.convert: time 0.0008655/0.1706, allocations: 0.9861 MB / 0.6922 GB, free: 7.781 MB / 494.1 MB Notification: Performance of FrontEnd - DAE generated: time 1.964e-06/0.1706, allocations: 0 / 0.6922 GB, free: 7.781 MB / 494.1 MB Notification: Performance of FrontEnd: time 1.292e-06/0.1706, allocations: 0 / 0.6922 GB, free: 7.781 MB / 494.1 MB Notification: Performance of Transformations before backend: time 8.416e-06/0.1706, allocations: 0 / 0.6922 GB, free: 7.781 MB / 494.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 145 * Number of variables: 145 Notification: Performance of Generate backend data structure: time 0.00141/0.172, allocations: 1.042 MB / 0.6932 GB, free: 6.68 MB / 494.1 MB Notification: Performance of prepare preOptimizeDAE: time 2.897e-05/0.1721, allocations: 11.97 kB / 0.6932 GB, free: 6.668 MB / 494.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002027/0.1741, allocations: 318.6 kB / 0.6935 GB, free: 6.355 MB / 494.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0009958/0.1751, allocations: 0.691 MB / 0.6942 GB, free: 5.625 MB / 494.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.478e-05/0.1752, allocations: 49.31 kB / 0.6942 GB, free: 5.578 MB / 494.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 8.234e-05/0.1753, allocations: 63.92 kB / 0.6943 GB, free: 5.516 MB / 494.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001459/0.1767, allocations: 0.7915 MB / 0.6951 GB, free: 4.668 MB / 494.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 1.519e-05/0.1767, allocations: 7.938 kB / 0.6951 GB, free: 4.66 MB / 494.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 6.491e-05/0.1768, allocations: 28 kB / 0.6951 GB, free: 4.633 MB / 494.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.711e-05/0.1768, allocations: 19.98 kB / 0.6951 GB, free: 4.613 MB / 494.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.00176/0.1786, allocations: 0.6256 MB / 0.6957 GB, free: 3.988 MB / 494.1 MB 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 0.004051/0.1827, allocations: 4.039 MB / 0.6997 GB, free: 15.65 MB / 0.4981 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0016/0.1843, allocations: 466 kB / 0.7001 GB, free: 15.19 MB / 0.4981 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0005439/0.1848, allocations: 0.5376 MB / 0.7006 GB, free: 14.54 MB / 0.4981 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.233e-05/0.1849, allocations: 38.56 kB / 0.7007 GB, free: 14.49 MB / 0.4981 GB Notification: Performance of pre-optimization done (n=26): time 1.443e-06/0.1849, allocations: 0 / 0.7007 GB, free: 14.49 MB / 0.4981 GB Notification: Performance of matching and sorting (n=26): time 0.002564/0.1875, allocations: 0.8071 MB / 0.7015 GB, free: 13.66 MB / 0.4981 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.336e-05/0.1875, allocations: 106.8 kB / 0.7016 GB, free: 13.53 MB / 0.4981 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0006002/0.1881, allocations: 0.5939 MB / 0.7021 GB, free: 12.93 MB / 0.4981 GB Notification: Performance of collectPreVariables (initialization): time 4.231e-05/0.1882, allocations: 33.7 kB / 0.7022 GB, free: 12.89 MB / 0.4981 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002392/0.1884, allocations: 391.5 kB / 0.7025 GB, free: 12.51 MB / 0.4981 GB Notification: Performance of collectInitialBindings (initialization): time 7.198e-05/0.1885, allocations: 94.73 kB / 0.7026 GB, free: 12.41 MB / 0.4981 GB Notification: Performance of simplifyInitialFunctions (initialization): time 2.279e-05/0.1885, allocations: 4 kB / 0.7026 GB, free: 12.41 MB / 0.4981 GB Notification: Performance of setup shared object (initialization): time 0.0001254/0.1886, allocations: 370.7 kB / 0.703 GB, free: 12.04 MB / 0.4981 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0007389/0.1894, allocations: 216.7 kB / 0.7032 GB, free: 11.83 MB / 0.4981 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0008059/0.1902, allocations: 365.8 kB / 0.7035 GB, free: 11.41 MB / 0.4981 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0007479/0.191, allocations: 237.2 kB / 0.7038 GB, free: 11.18 MB / 0.4981 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.228e-06/0.191, allocations: 4 kB / 0.7038 GB, free: 11.17 MB / 0.4981 GB Notification: Performance of matching and sorting (n=51) (initialization): time 0.001761/0.1928, allocations: 0.6756 MB / 0.7044 GB, free: 10.49 MB / 0.4981 GB Notification: Performance of prepare postOptimizeDAE: time 1.534e-05/0.1928, allocations: 7.953 kB / 0.7044 GB, free: 10.48 MB / 0.4981 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.593e-06/0.1928, allocations: 4 kB / 0.7044 GB, free: 10.48 MB / 0.4981 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0002166/0.193, allocations: 64.77 kB / 0.7045 GB, free: 10.41 MB / 0.4981 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006505/0.1937, allocations: 140.2 kB / 0.7046 GB, free: 10.27 MB / 0.4981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.000396/0.1941, allocations: 0.6148 MB / 0.7052 GB, free: 9.633 MB / 0.4981 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0007426/0.1948, allocations: 123.4 kB / 0.7054 GB, free: 9.512 MB / 0.4981 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.188e-05/0.1949, allocations: 27.92 kB / 0.7054 GB, free: 9.484 MB / 0.4981 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 18 * 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 (46): * Single equations (assignments): 45 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * 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: 0 * Non-linear torn systems: 1 {1 5} Notification: Performance of prepare postOptimizeDAE: time 0.0002495/0.1951, allocations: 229.6 kB / 0.7056 GB, free: 9.25 MB / 0.4981 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 9.011e-05/0.1952, allocations: 59.34 kB / 0.7057 GB, free: 9.191 MB / 0.4981 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001853/0.1971, allocations: 0.6362 MB / 0.7063 GB, free: 8.539 MB / 0.4981 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 9.618e-06/0.1971, allocations: 7.984 kB / 0.7063 GB, free: 8.531 MB / 0.4981 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.138e-06/0.1971, allocations: 0 / 0.7063 GB, free: 8.531 MB / 0.4981 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.001596/0.1987, allocations: 0.7156 MB / 0.707 GB, free: 7.746 MB / 0.4981 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002342/0.2011, allocations: 1.312 MB / 0.7083 GB, free: 6.359 MB / 0.4981 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.218e-06/0.2011, allocations: 12.09 kB / 0.7083 GB, free: 6.348 MB / 0.4981 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0005005/0.2016, allocations: 83.95 kB / 0.7084 GB, free: 6.266 MB / 0.4981 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0001459/0.2018, allocations: 56.83 kB / 0.7084 GB, free: 6.207 MB / 0.4981 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.992e-05/0.2018, allocations: 15.97 kB / 0.7084 GB, free: 6.191 MB / 0.4981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0003529/0.2022, allocations: 0.6225 MB / 0.709 GB, free: 5.543 MB / 0.4981 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.209e-06/0.2022, allocations: 8.016 kB / 0.709 GB, free: 5.535 MB / 0.4981 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.00241/0.2046, allocations: 0.9672 MB / 0.71 GB, free: 4.504 MB / 0.4981 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0002545/0.2049, allocations: 220.1 kB / 0.7102 GB, free: 4.27 MB / 0.4981 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001048/0.205, allocations: 8 kB / 0.7102 GB, free: 4.262 MB / 0.4981 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0007396/0.2057, allocations: 82.72 kB / 0.7103 GB, free: 4.184 MB / 0.4981 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 5.068e-05/0.2058, allocations: 19.97 kB / 0.7103 GB, free: 4.164 MB / 0.4981 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 4.25e-05/0.2058, allocations: 23.97 kB / 0.7103 GB, free: 4.141 MB / 0.4981 GB Notification: Performance of sorting global known variables: time 0.0004316/0.2063, allocations: 431.1 kB / 0.7107 GB, free: 3.723 MB / 0.4981 GB Notification: Performance of sort global known variables: time 2.31e-07/0.2063, allocations: 0 / 0.7107 GB, free: 3.723 MB / 0.4981 GB Notification: Performance of remove unused functions: time 0.0007484/0.207, allocations: 287.3 kB / 0.711 GB, free: 3.441 MB / 0.4981 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 6 * Number of states: 1 (senTem.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 (21): * Single equations (assignments): 18 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 2 * When equations: 0 * 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: 0 * Non-linear torn systems: 1 {1 5} Notification: Performance of Backend phase and start with SimCode phase: time 0.0005186/0.2075, allocations: 306.1 kB / 0.7113 GB, free: 3.145 MB / 0.4981 GB Notification: Performance of simCode: created initialization part: time 0.001651/0.2092, allocations: 0.5002 MB / 0.7118 GB, free: 2.645 MB / 0.4981 GB Notification: Performance of simCode: created event and clocks part: time 2.685e-06/0.2092, allocations: 0 / 0.7118 GB, free: 2.645 MB / 0.4981 GB Notification: Performance of simCode: created simulation system equations: time 0.0008171/0.21, allocations: 240.3 kB / 0.712 GB, free: 2.41 MB / 0.4981 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001288/0.2113, allocations: 326.4 kB / 0.7123 GB, free: 2.098 MB / 0.4981 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.002184/0.2135, allocations: 1.563 MB / 0.7139 GB, free: 500 kB / 0.4981 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004148/0.214, allocations: 0.9409 MB / 0.7148 GB, free: 15.52 MB / 0.5137 GB Notification: Performance of simCode: alias equations: time 0.0005024/0.2145, allocations: 144.4 kB / 0.7149 GB, free: 15.38 MB / 0.5137 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001363/0.2146, allocations: 63.39 kB / 0.715 GB, free: 15.32 MB / 0.5137 GB Notification: Performance of SimCode: time 2.1e-07/0.2146, allocations: 0 / 0.715 GB, free: 15.32 MB / 0.5137 GB Notification: Performance of Templates: time 0.01881/0.2334, allocations: 13.64 MB / 0.7283 GB, free: 1.875 MB / 0.5137 GB make -j1 -f BuildingSystems_BuildingSystems.Fluid.HeatExchangers.Validation.EvaporatorCondenser.makefile Environment - environmentSimulation: (rm -f BuildingSystems_BuildingSystems.Fluid.HeatExchangers.Validation.EvaporatorCondenser.pipe ; mkfifo BuildingSystems_BuildingSystems.Fluid.HeatExchangers.Validation.EvaporatorCondenser.pipe ; head -c 1048576 < BuildingSystems_BuildingSystems.Fluid.HeatExchangers.Validation.EvaporatorCondenser.pipe >> ../files/BuildingSystems_BuildingSystems.Fluid.HeatExchangers.Validation.EvaporatorCondenser.sim & ./BuildingSystems_BuildingSystems.Fluid.HeatExchangers.Validation.EvaporatorCondenser -abortSlowSimulation -alarm=480 -lv LOG_STATS > BuildingSystems_BuildingSystems.Fluid.HeatExchangers.Validation.EvaporatorCondenser.pipe 2>&1) Environment - environmentSimulation: