Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Examples.PlateHeatExchangerEffectivenessNTUPControl.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.HeatExchangers.Examples.PlateHeatExchangerEffectivenessNTUPControl,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Examples.PlateHeatExchangerEffectivenessNTUPControl") translateModel(Buildings.Fluid.HeatExchangers.Examples.PlateHeatExchangerEffectivenessNTUPControl,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Examples.PlateHeatExchangerEffectivenessNTUPControl") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0009001/0.0009003, allocations: 91.53 kB / 15.06 MB, free: 1.098 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.0009025/0.0009026, allocations: 172.7 kB / 15.95 MB, free: 208 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.623/1.623, allocations: 205.4 MB / 222.1 MB, free: 5.613 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 1.697/1.697, allocations: 252 MB / 0.5102 GB, free: 4.82 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 0.0005342/0.0005343, allocations: 20 kB / 0.6243 GB, free: 1.117 MB / 0.5137 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.5885/0.589, allocations: 106.3 MB / 0.7281 GB, free: 11.45 MB / 0.545 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatExchangers.Examples.PlateHeatExchangerEffectivenessNTUPControl): time 0.04086/0.6299, allocations: 44.4 MB / 0.7715 GB, free: 14.92 MB / 0.5919 GB Notification: Performance of NFInst.instExpressions: time 0.01881/0.6488, allocations: 13.02 MB / 0.7842 GB, free: 1.871 MB / 0.5919 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002216/0.651, allocations: 55.62 kB / 0.7843 GB, free: 1.816 MB / 0.5919 GB Notification: Performance of NFTyping.typeComponents: time 0.00191/0.653, allocations: 0.516 MB / 0.7848 GB, free: 1.297 MB / 0.5919 GB Notification: Performance of NFTyping.typeBindings: time 0.004973/0.6579, allocations: 1.531 MB / 0.7863 GB, free: 15.76 MB / 0.6075 GB Notification: Performance of NFTyping.typeClassSections: time 0.008738/0.6667, allocations: 2.636 MB / 0.7888 GB, free: 13.16 MB / 0.6075 GB Notification: Performance of NFFlatten.flatten: time 0.005894/0.6726, allocations: 3.718 MB / 0.7925 GB, free: 9.434 MB / 0.6075 GB Notification: Performance of NFFlatten.resolveConnections: time 0.00182/0.6744, allocations: 0.9071 MB / 0.7933 GB, free: 8.5 MB / 0.6075 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003017/0.6775, allocations: 1.221 MB / 0.7945 GB, free: 7.273 MB / 0.6075 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001755/0.6793, allocations: 0.9137 MB / 0.7954 GB, free: 6.355 MB / 0.6075 GB Notification: Performance of NFPackage.collectConstants: time 0.0001897/0.6795, allocations: 56 kB / 0.7955 GB, free: 6.301 MB / 0.6075 GB Notification: Performance of NFFlatten.collectFunctions: time 0.004007/0.6835, allocations: 1.989 MB / 0.7974 GB, free: 4.309 MB / 0.6075 GB Notification: Performance of NFScalarize.scalarize: time 0.0003722/0.6839, allocations: 262.7 kB / 0.7977 GB, free: 4.051 MB / 0.6075 GB Notification: Performance of NFVerifyModel.verify: time 0.0005792/0.6845, allocations: 308.9 kB / 0.798 GB, free: 3.742 MB / 0.6075 GB Notification: Performance of NFConvertDAE.convert: time 0.003488/0.6879, allocations: 2.073 MB / 0.8 GB, free: 1.664 MB / 0.6075 GB Notification: Performance of FrontEnd - DAE generated: time 5.59e-06/0.688, allocations: 0 / 0.8 GB, free: 1.664 MB / 0.6075 GB Notification: Performance of FrontEnd: time 2.064e-06/0.688, allocations: 0 / 0.8 GB, free: 1.664 MB / 0.6075 GB Notification: Performance of Transformations before backend: time 2.3e-05/0.688, allocations: 0 / 0.8 GB, free: 1.664 MB / 0.6075 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 215 * Number of variables: 215 Notification: Performance of Generate backend data structure: time 0.003574/0.6916, allocations: 1.862 MB / 0.8018 GB, free: 15.74 MB / 0.6231 GB Notification: Performance of prepare preOptimizeDAE: time 4.373e-05/0.6916, allocations: 12.03 kB / 0.8018 GB, free: 15.73 MB / 0.6231 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001636/0.6933, allocations: 425.6 kB / 0.8022 GB, free: 15.31 MB / 0.6231 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002263/0.6956, allocations: 1.126 MB / 0.8033 GB, free: 14.13 MB / 0.6231 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0005809/0.6962, allocations: 210.2 kB / 0.8035 GB, free: 13.93 MB / 0.6231 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001843/0.6964, allocations: 103.9 kB / 0.8036 GB, free: 13.82 MB / 0.6231 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002169/0.6985, allocations: 1.134 MB / 0.8047 GB, free: 12.65 MB / 0.6231 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.23e-05/0.6986, allocations: 3.938 kB / 0.8047 GB, free: 12.64 MB / 0.6231 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 8.814e-05/0.6987, allocations: 32 kB / 0.8048 GB, free: 12.61 MB / 0.6231 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.681e-05/0.6987, allocations: 24 kB / 0.8048 GB, free: 12.59 MB / 0.6231 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002381/0.7011, allocations: 1.062 MB / 0.8058 GB, free: 11.52 MB / 0.6231 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 0.008319/0.7094, allocations: 4.765 MB / 0.8105 GB, free: 6.484 MB / 0.6231 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0021/0.7115, allocations: 0.9003 MB / 0.8114 GB, free: 5.574 MB / 0.6231 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0009887/0.7125, allocations: 467 kB / 0.8118 GB, free: 5.117 MB / 0.6231 GB Notification: Performance of preOpt evalFunc (simulation): time 0.001242/0.7138, allocations: 1.096 MB / 0.8129 GB, free: 3.797 MB / 0.6231 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001244/0.7151, allocations: 0.543 MB / 0.8134 GB, free: 3.242 MB / 0.6231 GB Notification: Performance of pre-optimization done (n=73): time 4.438e-06/0.7151, allocations: 0 / 0.8134 GB, free: 3.242 MB / 0.6231 GB Notification: Performance of matching and sorting (n=73): time 0.003466/0.7185, allocations: 1.394 MB / 0.8148 GB, free: 1.84 MB / 0.6231 GB Notification: Performance of inlineWhenForInitialization (initialization): time 9.523e-05/0.7187, allocations: 141.1 kB / 0.8149 GB, free: 1.672 MB / 0.6231 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001508/0.7202, allocations: 1.175 MB / 0.8161 GB, free: 496 kB / 0.6231 GB Notification: Performance of collectPreVariables (initialization): time 0.0001284/0.7203, allocations: 49.7 kB / 0.8161 GB, free: 440 kB / 0.6231 GB Notification: Performance of collectInitialEqns (initialization): time 0.0005134/0.7208, allocations: 0.6071 MB / 0.8167 GB, free: 15.81 MB / 0.6387 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002125/0.7211, allocations: 244.3 kB / 0.8169 GB, free: 15.57 MB / 0.6387 GB Notification: Performance of simplifyInitialFunctions (initialization): time 5.714e-05/0.7211, allocations: 20 kB / 0.8169 GB, free: 15.55 MB / 0.6387 GB Notification: Performance of setup shared object (initialization): time 0.0001374/0.7213, allocations: 353.7 kB / 0.8173 GB, free: 15.2 MB / 0.6387 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001076/0.7224, allocations: 461.7 kB / 0.8177 GB, free: 14.75 MB / 0.6387 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001257/0.7236, allocations: 0.7066 MB / 0.8184 GB, free: 13.96 MB / 0.6387 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001163/0.7248, allocations: 0.5316 MB / 0.8189 GB, free: 13.42 MB / 0.6387 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.771e-06/0.7248, allocations: 0 / 0.8189 GB, free: 13.42 MB / 0.6387 GB Notification: Performance of matching and sorting (n=125) (initialization): time 0.002967/0.7278, allocations: 1.349 MB / 0.8202 GB, free: 12.06 MB / 0.6387 GB Notification: Performance of prepare postOptimizeDAE: time 0.0001768/0.728, allocations: 243.6 kB / 0.8205 GB, free: 11.75 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.23e-05/0.728, allocations: 11.98 kB / 0.8205 GB, free: 11.74 MB / 0.6387 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.509e-05/0.728, allocations: 16 kB / 0.8205 GB, free: 11.73 MB / 0.6387 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001407/0.7295, allocations: 307.6 kB / 0.8208 GB, free: 11.43 MB / 0.6387 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0006766/0.7301, allocations: 1.199 MB / 0.822 GB, free: 10.18 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001327/0.7315, allocations: 199 kB / 0.8222 GB, free: 9.984 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001149/0.7316, allocations: 51.97 kB / 0.8222 GB, free: 9.934 MB / 0.6387 GB Notification: Performance of prepare postOptimizeDAE: time 1.034e-05/0.7316, allocations: 7.938 kB / 0.8222 GB, free: 9.926 MB / 0.6387 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.002565/0.7342, allocations: 1.204 MB / 0.8234 GB, free: 8.715 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.949e-05/0.7342, allocations: 11.95 kB / 0.8234 GB, free: 8.703 MB / 0.6387 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.139e-05/0.7343, allocations: 8 kB / 0.8234 GB, free: 8.695 MB / 0.6387 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001084/0.7353, allocations: 283.6 kB / 0.8237 GB, free: 8.418 MB / 0.6387 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.42e-05/0.7354, allocations: 12 kB / 0.8237 GB, free: 8.406 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001347/0.7367, allocations: 194.9 kB / 0.8239 GB, free: 8.215 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001/0.7368, allocations: 51.97 kB / 0.8239 GB, free: 8.164 MB / 0.6387 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 19 * Number of states: 0 () * Number of discrete variables: 8 ($whenCondition1,$PRE.TSet.T_start,TSet.T_start,$PRE.TSet.count,TSet.count,hex.flowRegime,hex.flowRegime_nominal,P.I.trigger_internal) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (122): * Single equations (assignments): 117 * Array equations: 1 * Algorithm blocks: 1 * Record equations: 1 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 2 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 0 * Non-linear Jacobian: 2 {1,1} * Without analytic Jacobian: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0007061/0.7375, allocations: 376.9 kB / 0.8243 GB, free: 7.785 MB / 0.6387 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002729/0.7378, allocations: 154.1 kB / 0.8244 GB, free: 7.633 MB / 0.6387 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002881/0.7407, allocations: 1.318 MB / 0.8257 GB, free: 6.32 MB / 0.6387 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.135e-05/0.7408, allocations: 20 kB / 0.8257 GB, free: 6.301 MB / 0.6387 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.692e-06/0.7408, allocations: 0 / 0.8257 GB, free: 6.301 MB / 0.6387 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.157e-05/0.7408, allocations: 3.984 kB / 0.8257 GB, free: 6.297 MB / 0.6387 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.00439/0.7452, allocations: 2.541 MB / 0.8282 GB, free: 3.668 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.404e-06/0.7452, allocations: 0 / 0.8282 GB, free: 3.668 MB / 0.6387 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0009808/0.7462, allocations: 231.9 kB / 0.8284 GB, free: 3.441 MB / 0.6387 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.444e-05/0.7462, allocations: 4 kB / 0.8285 GB, free: 3.438 MB / 0.6387 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 7.121e-05/0.7463, allocations: 31.98 kB / 0.8285 GB, free: 3.406 MB / 0.6387 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.000617/0.7469, allocations: 1.188 MB / 0.8296 GB, free: 2.172 MB / 0.6387 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.21e-06/0.7469, allocations: 4 kB / 0.8296 GB, free: 2.168 MB / 0.6387 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003783/0.7507, allocations: 1.911 MB / 0.8315 GB, free: 224 kB / 0.6387 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0006614/0.7514, allocations: 358.8 kB / 0.8319 GB, free: 15.85 MB / 0.6544 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001655/0.7516, allocations: 16 kB / 0.8319 GB, free: 15.83 MB / 0.6544 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0009171/0.7525, allocations: 123.8 kB / 0.832 GB, free: 15.71 MB / 0.6544 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001425/0.7527, allocations: 68.5 kB / 0.8321 GB, free: 15.64 MB / 0.6544 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 8.253e-05/0.7528, allocations: 39.97 kB / 0.8321 GB, free: 15.6 MB / 0.6544 GB Notification: Performance of sorting global known variables: time 0.001264/0.754, allocations: 0.7856 MB / 0.8329 GB, free: 14.82 MB / 0.6544 GB Notification: Performance of sort global known variables: time 3.71e-07/0.7541, allocations: 0 / 0.8329 GB, free: 14.82 MB / 0.6544 GB Notification: Performance of remove unused functions: time 0.002197/0.7563, allocations: 0.7842 MB / 0.8336 GB, free: 14.03 MB / 0.6544 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 9 * Number of states: 4 (temSen.T,val.filter.x[1],val.filter.x[2],P.I.y) * Number of discrete variables: 4 ($whenCondition1,TSet.T_start,TSet.count,hex.flowRegime) * Number of discrete states: 1 (TSet.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (90): * Single equations (assignments): 80 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 6 * When equations: 2 * If-equations: 0 * Equation systems (linear and non-linear blocks): 2 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 0 * Non-linear Jacobian: 2 {1,1} * Without analytic Jacobian: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.001203/0.7575, allocations: 0.5405 MB / 0.8342 GB, free: 13.5 MB / 0.6544 GB Notification: Performance of simCode: created initialization part: time 0.004787/0.7623, allocations: 1.976 MB / 0.8361 GB, free: 11.48 MB / 0.6544 GB Notification: Performance of simCode: created event and clocks part: time 4.418e-06/0.7623, allocations: 0.625 kB / 0.8361 GB, free: 11.48 MB / 0.6544 GB Notification: Performance of simCode: created simulation system equations: time 0.001522/0.7638, allocations: 0.6095 MB / 0.8367 GB, free: 10.88 MB / 0.6544 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003005/0.7669, allocations: 0.5912 MB / 0.8373 GB, free: 10.29 MB / 0.6544 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.005732/0.7726, allocations: 2.97 MB / 0.8402 GB, free: 7.27 MB / 0.6544 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0008862/0.7735, allocations: 1.179 MB / 0.8413 GB, free: 6.062 MB / 0.6544 GB Notification: Performance of simCode: alias equations: time 0.001933/0.7755, allocations: 362.6 kB / 0.8417 GB, free: 5.738 MB / 0.6544 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0003473/0.7758, allocations: 123.4 kB / 0.8418 GB, free: 5.617 MB / 0.6544 GB Notification: Performance of SimCode: time 1.353e-06/0.7758, allocations: 4 kB / 0.8418 GB, free: 5.613 MB / 0.6544 GB Notification: Performance of Templates: time 0.04999/0.8258, allocations: 27.4 MB / 0.8685 GB, free: 10.59 MB / 0.6856 GB make -j1 -f Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Examples.PlateHeatExchangerEffectivenessNTUPControl.makefile Environment - environmentSimulation: (rm -f Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Examples.PlateHeatExchangerEffectivenessNTUPControl.pipe ; mkfifo Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Examples.PlateHeatExchangerEffectivenessNTUPControl.pipe ; head -c 1048576 < Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Examples.PlateHeatExchangerEffectivenessNTUPControl.pipe >> ../files/Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Examples.PlateHeatExchangerEffectivenessNTUPControl.sim & ./Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Examples.PlateHeatExchangerEffectivenessNTUPControl -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_maint.7.0.x_Buildings.Fluid.HeatExchangers.Examples.PlateHeatExchangerEffectivenessNTUPControl.pipe 2>&1) Environment - environmentSimulation: