Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_latest_Buildings.Experimental.DHC.Plants.Steam.BaseClasses.Examples.BoilerPolynomial.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/Buildings 10.0.0-master/package.mo", uses=false) Using package Buildings with version 10.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.0.0-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: "" <> buildModelFMU(Buildings.Experimental.DHC.Plants.Steam.BaseClasses.Examples.BoilerPolynomial,fileNamePrefix="Buildings_latest_Buildings_Experimental_DHC_Plants_Steam_BaseClasses_Examples_BoilerPolynomial",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Experimental.DHC.Plants.Steam.BaseClasses.Examples.BoilerPolynomial,fileNamePrefix="Buildings_latest_Buildings_Experimental_DHC_Plants_Steam_BaseClasses_Examples_BoilerPolynomial",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 0.0008911/0.0008913, allocations: 86.33 kB / 15.06 MB, free: 1.09 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.00157/0.00157, allocations: 168.7 kB / 15.95 MB, free: 204 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.565/1.565, allocations: 223.3 MB / 240 MB, free: 5.363 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.0.0-master/package.mo): time 2.707/2.707, allocations: 409.4 MB / 0.684 GB, free: 0.875 MB / 0.5294 GB Notification: Performance of FrontEnd - loaded program: time 0.0003633/0.0003635, allocations: 8 kB / 0.8378 GB, free: 6.504 MB / 0.6856 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.8099/0.8103, allocations: 146.8 MB / 0.9812 GB, free: 6.27 MB / 0.7325 GB Notification: Performance of NFInst.instantiate(Buildings.Experimental.DHC.Plants.Steam.BaseClasses.Examples.BoilerPolynomial): time 0.2363/1.047, allocations: 165.4 MB / 1.143 GB, free: 400 kB / 0.8887 GB Notification: Performance of NFInst.instExpressions: time 0.01856/1.065, allocations: 13.08 MB / 1.155 GB, free: 3.289 MB / 0.9044 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001623/1.067, allocations: 23.88 kB / 1.155 GB, free: 3.266 MB / 0.9044 GB Notification: Performance of NFTyping.typeComponents: time 0.001303/1.068, allocations: 361.8 kB / 1.156 GB, free: 2.91 MB / 0.9044 GB Notification: Performance of NFTyping.typeBindings: time 0.003896/1.072, allocations: 1.04 MB / 1.157 GB, free: 1.867 MB / 0.9044 GB Notification: Performance of NFTyping.typeClassSections: time 0.004129/1.076, allocations: 1.193 MB / 1.158 GB, free: 0.6797 MB / 0.9044 GB Notification: Performance of NFFlatten.flatten: time 0.003395/1.08, allocations: 2.124 MB / 1.16 GB, free: 14.54 MB / 0.92 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001055/1.081, allocations: 0.5154 MB / 1.161 GB, free: 14.02 MB / 0.92 GB Notification: Performance of NFEvalConstants.evaluate: time 0.007839/1.089, allocations: 2.407 MB / 1.163 GB, free: 11.6 MB / 0.92 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001255/1.09, allocations: 0.5561 MB / 1.163 GB, free: 11.04 MB / 0.92 GB Notification: Performance of NFPackage.collectConstants: time 0.0001077/1.09, allocations: 36 kB / 1.164 GB, free: 11.01 MB / 0.92 GB Notification: Performance of NFFlatten.collectFunctions: time 0.005528/1.096, allocations: 2.52 MB / 1.166 GB, free: 8.484 MB / 0.92 GB Notification: Performance of NFScalarize.scalarize: time 0.000262/1.096, allocations: 159.2 kB / 1.166 GB, free: 8.328 MB / 0.92 GB Notification: Performance of NFVerifyModel.verify: time 0.0004351/1.096, allocations: 217.2 kB / 1.166 GB, free: 8.109 MB / 0.92 GB Notification: Performance of NFConvertDAE.convert: time 0.003007/1.099, allocations: 1.855 MB / 1.168 GB, free: 6.25 MB / 0.92 GB Notification: Performance of FrontEnd - DAE generated: time 8.075e-06/1.099, allocations: 0 / 1.168 GB, free: 6.25 MB / 0.92 GB Notification: Performance of FrontEnd: time 1.814e-06/1.099, allocations: 0 / 1.168 GB, free: 6.25 MB / 0.92 GB Notification: Performance of Transformations before backend: time 1.687e-05/1.099, allocations: 4 kB / 1.168 GB, free: 6.246 MB / 0.92 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 161 * Number of variables: 161 Notification: Performance of Generate backend data structure: time 0.002488/1.102, allocations: 1.236 MB / 1.169 GB, free: 4.953 MB / 0.92 GB Notification: Performance of prepare preOptimizeDAE: time 4.687e-05/1.102, allocations: 8.031 kB / 1.169 GB, free: 4.945 MB / 0.92 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001236/1.102, allocations: 110.5 kB / 1.169 GB, free: 4.828 MB / 0.92 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001392/1.103, allocations: 214.5 kB / 1.17 GB, free: 4.617 MB / 0.92 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001052/1.105, allocations: 0.6394 MB / 1.17 GB, free: 3.938 MB / 0.92 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.789e-05/1.105, allocations: 49.31 kB / 1.17 GB, free: 3.887 MB / 0.92 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001023/1.105, allocations: 64 kB / 1.17 GB, free: 3.824 MB / 0.92 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001233/1.106, allocations: 0.6839 MB / 1.171 GB, free: 3.121 MB / 0.92 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.727e-05/1.106, allocations: 4 kB / 1.171 GB, free: 3.117 MB / 0.92 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 5.78e-05/1.106, allocations: 23.94 kB / 1.171 GB, free: 3.094 MB / 0.92 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.711e-05/1.106, allocations: 16 kB / 1.171 GB, free: 3.078 MB / 0.92 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0009228/1.107, allocations: 0.5009 MB / 1.172 GB, free: 2.578 MB / 0.92 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 0.01545/1.122, allocations: 6.875 MB / 1.178 GB, free: 11.35 MB / 0.9356 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0004816/1.123, allocations: 275.7 kB / 1.179 GB, free: 11.05 MB / 0.9356 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002849/1.123, allocations: 190.6 kB / 1.179 GB, free: 10.86 MB / 0.9356 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0003889/1.124, allocations: 311.2 kB / 1.179 GB, free: 10.5 MB / 0.9356 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0004711/1.124, allocations: 305.9 kB / 1.179 GB, free: 10.16 MB / 0.9356 GB Notification: Performance of pre-optimization done (n=38): time 2.034e-06/1.124, allocations: 0 / 1.179 GB, free: 10.16 MB / 0.9356 GB Notification: Performance of matching and sorting (n=45): time 0.005583/1.13, allocations: 2.328 MB / 1.182 GB, free: 7.727 MB / 0.9356 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001249/1.13, allocations: 203.9 kB / 1.182 GB, free: 7.484 MB / 0.9356 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001203/1.131, allocations: 0.7862 MB / 1.183 GB, free: 6.688 MB / 0.9356 GB Notification: Performance of collectPreVariables (initialization): time 4.965e-05/1.131, allocations: 41.64 kB / 1.183 GB, free: 6.641 MB / 0.9356 GB Notification: Performance of collectInitialEqns (initialization): time 0.0004437/1.132, allocations: 427.9 kB / 1.183 GB, free: 6.219 MB / 0.9356 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001381/1.132, allocations: 149.8 kB / 1.183 GB, free: 6.07 MB / 0.9356 GB Notification: Performance of simplifyInitialFunctions (initialization): time 2.986e-05/1.132, allocations: 8 kB / 1.183 GB, free: 6.062 MB / 0.9356 GB Notification: Performance of setup shared object (initialization): time 0.0001435/1.132, allocations: 334 kB / 1.184 GB, free: 5.73 MB / 0.9356 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003723/1.132, allocations: 197 kB / 1.184 GB, free: 5.539 MB / 0.9356 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0005483/1.133, allocations: 330.9 kB / 1.184 GB, free: 5.172 MB / 0.9356 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0004513/1.133, allocations: 259.8 kB / 1.184 GB, free: 4.91 MB / 0.9356 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.964e-06/1.133, allocations: 4 kB / 1.184 GB, free: 4.906 MB / 0.9356 GB Notification: Performance of matching and sorting (n=68) (initialization): time 0.001622/1.135, allocations: 0.7744 MB / 1.185 GB, free: 4.117 MB / 0.9356 GB Notification: Performance of prepare postOptimizeDAE: time 0.0001494/1.135, allocations: 184.1 kB / 1.185 GB, free: 3.895 MB / 0.9356 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.935e-06/1.135, allocations: 4 kB / 1.185 GB, free: 3.891 MB / 0.9356 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0007756/1.136, allocations: 137.6 kB / 1.185 GB, free: 3.75 MB / 0.9356 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0007662/1.137, allocations: 151.8 kB / 1.185 GB, free: 3.602 MB / 0.9356 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.004315/1.141, allocations: 4.322 MB / 1.19 GB, free: 14.96 MB / 0.9512 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001096/1.142, allocations: 83.86 kB / 1.19 GB, free: 14.88 MB / 0.9512 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001087/1.142, allocations: 31.92 kB / 1.19 GB, free: 14.84 MB / 0.9512 GB Notification: Performance of prepare postOptimizeDAE: time 9.438e-06/1.142, allocations: 4 kB / 1.19 GB, free: 14.84 MB / 0.9512 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.001515/1.144, allocations: 0.6958 MB / 1.19 GB, free: 14.14 MB / 0.9512 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.957e-06/1.144, allocations: 4 kB / 1.191 GB, free: 14.13 MB / 0.9512 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0003665/1.144, allocations: 101.6 kB / 1.191 GB, free: 14.03 MB / 0.9512 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004996/1.145, allocations: 115.8 kB / 1.191 GB, free: 13.91 MB / 0.9512 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003434/1.148, allocations: 3.118 MB / 1.194 GB, free: 10.54 MB / 0.9512 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009577/1.149, allocations: 55.89 kB / 1.194 GB, free: 10.48 MB / 0.9512 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 8.541e-05/1.149, allocations: 28.05 kB / 1.194 GB, free: 10.45 MB / 0.9512 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 9 * Number of states: 0 () * Number of discrete variables: 7 ($whenCondition1,y.a,y.b,y.last,$PRE.y.nextEvent,y.nextEvent,y.nextEventScaled) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (58): * Single equations (assignments): 53 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 2 * Torn equation systems: 2 * 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: Torn system details for strict tearing set: * Linear torn systems: 1 {(1,100.0%) 1} * Non-linear torn systems: 1 {1 4} Notification: Performance of prepare postOptimizeDAE: time 0.0006491/1.15, allocations: 346.6 kB / 1.194 GB, free: 10.1 MB / 0.9512 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0003539/1.15, allocations: 98.84 kB / 1.194 GB, free: 10 MB / 0.9512 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001435/1.152, allocations: 0.7117 MB / 1.195 GB, free: 9.254 MB / 0.9512 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 7.194e-06/1.152, allocations: 4 kB / 1.195 GB, free: 9.25 MB / 0.9512 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.75e-06/1.152, allocations: 3.953 kB / 1.195 GB, free: 9.246 MB / 0.9512 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 7.153e-06/1.152, allocations: 4 kB / 1.195 GB, free: 9.242 MB / 0.9512 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002924/1.155, allocations: 1.655 MB / 1.197 GB, free: 7.504 MB / 0.9512 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.24e-06/1.155, allocations: 0 / 1.197 GB, free: 7.504 MB / 0.9512 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0004242/1.155, allocations: 92.02 kB / 1.197 GB, free: 7.414 MB / 0.9512 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0004819/1.156, allocations: 88.78 kB / 1.197 GB, free: 7.324 MB / 0.9512 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.809e-05/1.156, allocations: 12 kB / 1.197 GB, free: 7.312 MB / 0.9512 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.003049/1.159, allocations: 2.765 MB / 1.199 GB, free: 4.367 MB / 0.9512 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.328e-06/1.159, allocations: 4.031 kB / 1.199 GB, free: 4.363 MB / 0.9512 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002296/1.161, allocations: 0.898 MB / 1.2 GB, free: 3.426 MB / 0.9512 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0008156/1.162, allocations: 228 kB / 1.201 GB, free: 3.184 MB / 0.9512 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0003405/1.162, allocations: 12 kB / 1.201 GB, free: 3.172 MB / 0.9512 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0008389/1.163, allocations: 47.95 kB / 1.201 GB, free: 3.125 MB / 0.9512 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000118/1.163, allocations: 31.86 kB / 1.201 GB, free: 3.094 MB / 0.9512 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.108e-05/1.163, allocations: 12 kB / 1.201 GB, free: 3.082 MB / 0.9512 GB Notification: Performance of sorting global known variables: time 0.001246/1.165, allocations: 0.5732 MB / 1.201 GB, free: 2.516 MB / 0.9512 GB Notification: Performance of sort global known variables: time 2.01e-07/1.165, allocations: 0 / 1.201 GB, free: 2.516 MB / 0.9512 GB Notification: Performance of remove unused functions: time 0.002971/1.168, allocations: 0.6483 MB / 1.202 GB, free: 1.867 MB / 0.9512 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 6 * Number of states: 2 (boiDyn.vol.VWat,boiSte.vol.VWat) * Number of discrete variables: 6 ($whenCondition1,y.a,y.b,y.last,y.nextEvent,y.nextEventScaled) * Number of discrete states: 6 (y.nextEvent,y.last,y.nextEventScaled,y.b,y.a,$whenCondition1) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (32): * Single equations (assignments): 28 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 2 * Torn equation systems: 1 * 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: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 1 {1 3} Notification: Performance of Backend phase and start with SimCode phase: time 0.004148/1.172, allocations: 1.848 MB / 1.204 GB, free: 15.97 MB / 0.9669 GB Notification: Performance of simCode: created initialization part: time 0.003544/1.175, allocations: 1.457 MB / 1.205 GB, free: 14.44 MB / 0.9669 GB Notification: Performance of simCode: created event and clocks part: time 5.651e-06/1.175, allocations: 0 / 1.205 GB, free: 14.44 MB / 0.9669 GB Notification: Performance of simCode: created simulation system equations: time 0.0007799/1.176, allocations: 426.4 kB / 1.205 GB, free: 14 MB / 0.9669 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002159/1.178, allocations: 354.9 kB / 1.206 GB, free: 13.66 MB / 0.9669 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01181/1.19, allocations: 5.012 MB / 1.211 GB, free: 8.484 MB / 0.9669 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001013/1.191, allocations: 0.9736 MB / 1.212 GB, free: 7.484 MB / 0.9669 GB Notification: Performance of simCode: alias equations: time 0.001046/1.192, allocations: 162 kB / 1.212 GB, free: 7.332 MB / 0.9669 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004956/1.193, allocations: 313 kB / 1.212 GB, free: 7.027 MB / 0.9669 GB Notification: Performance of SimCode: time 8.11e-07/1.193, allocations: 0 / 1.212 GB, free: 7.027 MB / 0.9669 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.07504/1.268, allocations: 30.2 MB / 1.242 GB, free: 9.32 MB / 0.9981 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0003185/1.268, allocations: 296.5 kB / 1.242 GB, free: 8.961 MB / 0.9981 GB Notification: Performance of buildModelFMU: Generate platform static: time 2.872/4.14, allocations: 3.094 kB / 1.242 GB, free: 8.961 MB / 0.9981 GB (rm -f Buildings_latest_Buildings.Experimental.DHC.Plants.Steam.BaseClasses.Examples.BoilerPolynomial.pipe ; mkfifo Buildings_latest_Buildings.Experimental.DHC.Plants.Steam.BaseClasses.Examples.BoilerPolynomial.pipe ; head -c 1048576 < Buildings_latest_Buildings.Experimental.DHC.Plants.Steam.BaseClasses.Examples.BoilerPolynomial.pipe >> ../files/Buildings_latest_Buildings.Experimental.DHC.Plants.Steam.BaseClasses.Examples.BoilerPolynomial.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator -r=Buildings_latest_Buildings.Experimental.DHC.Plants.Steam.BaseClasses.Examples.BoilerPolynomial_res.mat --tempDir=temp_Buildings_latest_Buildings_Experimental_DHC_Plants_Steam_BaseClasses_Examples_BoilerPolynomial_fmu --startTime=0 --stopTime=3600 --timeout=50 --tolerance=1e-06 Buildings_latest_Buildings_Experimental_DHC_Plants_Steam_BaseClasses_Examples_BoilerPolynomial.fmu > Buildings_latest_Buildings.Experimental.DHC.Plants.Steam.BaseClasses.Examples.BoilerPolynomial.pipe 2>&1) Environment - environmentSimulation: