Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.Fluid.HeatExchangers.Validation.WetCoilDiscretizedInitializationPerfectGases.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+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/ModelicaServices 3.2.3+maint.om/package.mo", uses=false) Using package ModelicaServices with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/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 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo) Using package Buildings with version 8.1.4 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo) Running command: translateModel(Buildings.Fluid.HeatExchangers.Validation.WetCoilDiscretizedInitializationPerfectGases,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Fluid.HeatExchangers.Validation.WetCoilDiscretizedInitializationPerfectGases") translateModel(Buildings.Fluid.HeatExchangers.Validation.WetCoilDiscretizedInitializationPerfectGases,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Fluid.HeatExchangers.Validation.WetCoilDiscretizedInitializationPerfectGases") [:1:1-1:32:writable] Error: Class GC_set_max_heap_size not found in scope (looking for a function or record). Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.492/1.492, allocations: 289.8 MB / 297.1 MB, free: 6.73 MB / 234.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.001043/0.001043, allocations: 177.3 kB / 366.3 MB, free: 2.008 MB / 298.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.433/1.433, allocations: 205.2 MB / 0.6256 GB, free: 5.867 MB / 474.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.0008593/0.0008593, allocations: 93.89 kB / 0.7396 GB, free: 39.71 MB / 0.5105 GB Notification: Performance of FrontEnd - loaded program: time 1.024e-05/1.026e-05, allocations: 4 kB / 0.859 GB, free: 13.43 MB / 0.6042 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.7416/0.7417, allocations: 116.3 MB / 0.9725 GB, free: 68.62 MB / 0.6511 GB Notification: Performance of FrontEnd - scodeFlatten: time 5.672/6.414, allocations: 2.364 GB / 3.337 GB, free: 49.21 MB / 0.948 GB Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003173/6.414, allocations: 91.27 kB / 3.337 GB, free: 49.16 MB / 0.948 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/Fluid/Movers/BaseClasses/IdealSource.mo:14:3-22:27:writable] Error: The conditional expression control_m_flow could not be evaluated. Notification: Performance of FrontEnd: time 79.14/85.55, allocations: 19.61 GB / 22.94 GB, free: 65.4 MB / 1.37 GB Notification: Performance of Transformations before backend: time 0.01014/85.56, allocations: 0.6523 MB / 22.94 GB, free: 65.32 MB / 1.37 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 5513 * Number of variables: 5513 Notification: Performance of Generate backend data structure: time 0.1401/85.7, allocations: 27.25 MB / 22.97 GB, free: 56.32 MB / 1.37 GB Notification: Performance of prepare preOptimizeDAE: time 5.033e-05/85.7, allocations: 9.312 kB / 22.97 GB, free: 56.32 MB / 1.37 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.06093/85.76, allocations: 6.213 MB / 22.98 GB, free: 54.7 MB / 1.37 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.1659/85.93, allocations: 54.96 MB / 23.03 GB, free: 50.97 MB / 1.37 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.002052/85.93, allocations: 0.6744 MB / 23.03 GB, free: 50.97 MB / 1.37 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.01545/85.95, allocations: 1.276 MB / 23.03 GB, free: 50.96 MB / 1.37 GB Notification: Performance of preOpt removeEqualFunctionCalls (simulation): time 0.09862/86.04, allocations: 34.28 MB / 23.07 GB, free: 50.87 MB / 1.37 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.1286/86.17, allocations: 35.99 MB / 23.1 GB, free: 49.23 MB / 1.37 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.001802/86.17, allocations: 42.06 kB / 23.1 GB, free: 49.22 MB / 1.37 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.01355/86.19, allocations: 18.12 kB / 23.1 GB, free: 49.22 MB / 1.37 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.001425/86.19, allocations: 0.9665 MB / 23.1 GB, free: 49.18 MB / 1.37 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.359/86.55, allocations: 164.7 MB / 23.26 GB, free: 14.39 MB / 1.401 GB Notification: Performance of preOpt comSubExp (simulation): time 0.02923/86.58, allocations: 14.57 MB / 23.28 GB, free: 1.953 MB / 1.401 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.05701/86.63, allocations: 17.08 MB / 23.29 GB, free: 11.77 MB / 1.417 GB Notification: Performance of preOpt evalFunc (simulation): time 0.004277/86.64, allocations: 2.861 MB / 23.3 GB, free: 8.445 MB / 1.417 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0002861/86.64, allocations: 199 kB / 23.3 GB, free: 8.242 MB / 1.417 GB Notification: Performance of pre-optimization done (n=1205): time 1.308e-05/86.64, allocations: 0.5 kB / 23.3 GB, free: 8.242 MB / 1.417 GB Notification: Performance of matching and sorting (n=1271): time 1.423/88.06, allocations: 58.39 MB / 23.35 GB, free: 189.5 MB / 1.432 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001014/88.06, allocations: 185 kB / 23.35 GB, free: 189.4 MB / 1.432 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.06549/88.13, allocations: 23.07 MB / 23.38 GB, free: 188.6 MB / 1.432 GB Notification: Performance of collectPreVariables (initialization): time 0.005709/88.13, allocations: 46.48 kB / 23.38 GB, free: 188.5 MB / 1.432 GB Notification: Performance of collectInitialEqns (initialization): time 0.01773/88.15, allocations: 8.061 MB / 23.38 GB, free: 185.8 MB / 1.432 GB Notification: Performance of collectInitialBindings (initialization): time 0.02573/88.18, allocations: 4.282 MB / 23.39 GB, free: 183.6 MB / 1.432 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.005555/88.18, allocations: 3.344 kB / 23.39 GB, free: 183.6 MB / 1.432 GB Notification: Performance of setup shared object (initialization): time 0.00293/88.19, allocations: 0.9269 MB / 23.39 GB, free: 183.2 MB / 1.432 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.02261/88.21, allocations: 10.99 MB / 23.4 GB, free: 183.2 MB / 1.432 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.03201/88.24, allocations: 15.09 MB / 23.41 GB, free: 179.4 MB / 1.432 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.03354/88.27, allocations: 14.6 MB / 23.43 GB, free: 179.2 MB / 1.432 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 0.0003209/88.28, allocations: 23.5 kB / 23.43 GB, free: 179.2 MB / 1.432 GB Notification: Performance of matching and sorting (n=1657) (initialization): time 0.1007/88.38, allocations: 32.62 MB / 23.46 GB, free: 177.7 MB / 1.432 GB Notification: Performance of prepare postOptimizeDAE: time 0.01339/88.39, allocations: 52.33 MB / 23.51 GB, free: 124.5 MB / 1.432 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0004868/88.39, allocations: 66.53 kB / 23.51 GB, free: 124.5 MB / 1.432 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.04573/88.44, allocations: 11.2 MB / 23.52 GB, free: 124.4 MB / 1.432 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01642/88.45, allocations: 2.576 MB / 23.53 GB, free: 124.4 MB / 1.432 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04382/88.5, allocations: 29.69 MB / 23.55 GB, free: 118.8 MB / 1.432 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.03743/88.53, allocations: 2.393 MB / 23.56 GB, free: 118.7 MB / 1.432 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.007178/88.54, allocations: 0.5478 MB / 23.56 GB, free: 118.7 MB / 1.432 GB Notification: Performance of prepare postOptimizeDAE: time 2.316e-05/88.54, allocations: 10.86 kB / 23.56 GB, free: 118.7 MB / 1.432 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.09177/88.63, allocations: 30.62 MB / 23.59 GB, free: 118.2 MB / 1.432 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0005355/88.63, allocations: 70.5 kB / 23.59 GB, free: 118.2 MB / 1.432 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.04037/88.67, allocations: 11.19 MB / 23.6 GB, free: 118 MB / 1.432 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01683/88.69, allocations: 2.572 MB / 23.6 GB, free: 118 MB / 1.432 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04125/88.73, allocations: 29.07 MB / 23.63 GB, free: 113 MB / 1.432 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.03516/88.77, allocations: 2.354 MB / 23.63 GB, free: 112.9 MB / 1.432 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.006592/88.77, allocations: 0.5498 MB / 23.63 GB, free: 112.9 MB / 1.432 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 310 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (1233): * Single equations (assignments): 1227 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 1 * Torn equation systems: 5 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 0 * Non-linear Jacobian: 1 {1} * Without analytic Jacobian: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 3 {(1,100.0%) 12,(1,100.0%) 8,(1,100.0%) 2} * Non-linear torn systems: 2 {24 208,24 148} Notification: Performance of prepare postOptimizeDAE: time 0.01217/88.79, allocations: 383.6 kB / 23.63 GB, free: 112.8 MB / 1.432 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.01283/88.8, allocations: 1.947 MB / 23.63 GB, free: 111.8 MB / 1.432 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.08513/88.88, allocations: 28.44 MB / 23.66 GB, free: 111.1 MB / 1.432 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 0.000323/88.88, allocations: 129.3 kB / 23.66 GB, free: 111.1 MB / 1.432 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 0.0001494/88.88, allocations: 5.906 kB / 23.66 GB, free: 111.1 MB / 1.432 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.06142/88.95, allocations: 23.33 MB / 23.68 GB, free: 110.5 MB / 1.432 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.2268/89.17, allocations: 66.28 MB / 23.75 GB, free: 107.5 MB / 1.432 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 0.0001998/89.17, allocations: 17.78 kB / 23.75 GB, free: 107.5 MB / 1.432 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.02372/89.2, allocations: 2.862 MB / 23.75 GB, free: 107.5 MB / 1.432 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.01573/89.21, allocations: 4.11 MB / 23.76 GB, free: 107.4 MB / 1.432 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.005074/89.22, allocations: 228.9 kB / 23.76 GB, free: 107.4 MB / 1.432 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.02457/89.24, allocations: 17.33 MB / 23.77 GB, free: 101.9 MB / 1.432 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.909e-05/89.24, allocations: 27.25 kB / 23.77 GB, free: 101.9 MB / 1.432 GB Notification: Performance of postOpt detectJacobianSparsePattern (simulation): time 0.1077/89.35, allocations: 51.12 MB / 23.82 GB, free: 63.01 MB / 1.432 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0301/89.38, allocations: 6.23 MB / 23.83 GB, free: 57.3 MB / 1.432 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0145/89.39, allocations: 154.1 kB / 23.83 GB, free: 57.18 MB / 1.432 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.03894/89.43, allocations: 2.144 MB / 23.83 GB, free: 55.87 MB / 1.432 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.00792/89.44, allocations: 0.6586 MB / 23.83 GB, free: 55.48 MB / 1.432 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.006358/89.45, allocations: 457.1 kB / 23.83 GB, free: 55.09 MB / 1.432 GB Notification: Performance of sort global known variables: time 0.05342/89.5, allocations: 18.4 MB / 23.85 GB, free: 39.57 MB / 1.432 GB Notification: Performance of remove unused functions: time 0.09447/89.6, allocations: 12.61 MB / 23.86 GB, free: 27.08 MB / 1.432 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 70 * Number of states: 50 (hexFixIni.hexReg[1].ele[1,1].vol1.dynBal.U,hexFixIni.hexReg[1].ele[1,1].vol2.dynBal.U,hexFixIni.hexReg[1].ele[1,1].vol2.dynBal.mXi[1],hexFixIni.hexReg[1].ele[1,1].mas.T,hexFixIni.hexReg[1].ele[1,2].vol1.dynBal.U,hexFixIni.hexReg[1].ele[1,2].vol2.dynBal.U,hexFixIni.hexReg[1].ele[1,2].vol2.dynBal.mXi[1],hexFixIni.hexReg[1].ele[1,2].mas.T,hexFixIni.hexReg[1].ele[1,3].vol1.dynBal.U,hexFixIni.hexReg[1].ele[1,3].vol2.dynBal.U,hexFixIni.hexReg[1].ele[1,3].vol2.dynBal.mXi[1],hexFixIni.hexReg[1].ele[1,3].mas.T,hexFixIni.hexReg[2].ele[1,1].vol1.dynBal.U,hexFixIni.hexReg[2].ele[1,1].vol2.dynBal.U,hexFixIni.hexReg[2].ele[1,1].vol2.dynBal.mXi[1],hexFixIni.hexReg[2].ele[1,1].mas.T,hexFixIni.hexReg[2].ele[1,2].vol1.dynBal.U,hexFixIni.hexReg[2].ele[1,2].vol2.dynBal.U,hexFixIni.hexReg[2].ele[1,2].vol2.dynBal.mXi[1],hexFixIni.hexReg[2].ele[1,2].mas.T,hexFixIni.hexReg[2].ele[1,3].vol1.dynBal.U,hexFixIni.hexReg[2].ele[1,3].vol2.dynBal.U,hexFixIni.hexReg[2].ele[1,3].vol2.dynBal.m,hexFixIni.hexReg[2].ele[1,3].vol2.dynBal.mXi[1],hexFixIni.hexReg[2].ele[1,3].mas.T,hexSteStaIni.port_b1.h_outflow,hexSteStaIni.hexReg[1].ele[1,1].vol2.dynBal.medium.X[2],hexSteStaIni.hexReg[1].ele[1,1].vol2.dynBal.medium.dT,hexSteStaIni.hexReg[1].ele[1,1].mas.T,hexSteStaIni.hexReg[1].ele[1,2].port_b1.h_outflow,hexSteStaIni.hexReg[1].ele[1,2].vol2.dynBal.medium.X[2],hexSteStaIni.hexReg[1].ele[1,2].vol2.dynBal.medium.dT,hexSteStaIni.hexReg[1].ele[1,2].mas.T,hexSteStaIni.hexReg[1].ele[1,3].vol2.dynBal.medium.X[2],hexSteStaIni.hexReg[1].ele[1,3].vol2.dynBal.medium.dT,hexSteStaIni.hexReg[1].ele[1,3].mas.T,hexSteStaIni.hexReg[1].port_a1[1].h_outflow,hexSteStaIni.hexReg[1].port_b1[1].h_outflow,hexSteStaIni.hexReg[2].ele[1,1].vol2.dynBal.medium.X[2],hexSteStaIni.hexReg[2].ele[1,1].vol2.dynBal.medium.dT,hexSteStaIni.hexReg[2].ele[1,1].mas.T,hexSteStaIni.hexReg[2].ele[1,2].port_b1.h_outflow,hexSteStaIni.hexReg[2].ele[1,2].vol2.dynBal.medium.X[2],hexSteStaIni.hexReg[2].ele[1,2].vol2.dynBal.medium.dT,hexSteStaIni.hexReg[2].ele[1,2].mas.T,hexSteStaIni.hexReg[2].ele[1,3].vol2.dynBal.medium.X[2],hexSteStaIni.hexReg[2].ele[1,3].vol2.dynBal.medium.dT,hexSteStaIni.hexReg[2].ele[1,3].vol2.dynBal.m,hexSteStaIni.hexReg[2].ele[1,3].mas.T,hexSteStaIni.hexReg[2].port_b1[1].h_outflow) * Number of discrete variables: 0 () * Number of discrete states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (1104): * Single equations (assignments): 1086 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 12 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 2 * Torn equation systems: 4 * 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: 3 {(1,100.0%) 12,(1,100.0%) 12,(1,100.0%) 2} * Non-linear torn systems: 1 {24 148} Notification: Performance of Backend phase and start with SimCode phase: time 0.0322/89.63, allocations: 18.57 MB / 23.88 GB, free: 10.64 MB / 1.432 GB Notification: Performance of simCode: created initialization part: time 1.537/91.17, allocations: 44.45 MB / 23.92 GB, free: 182.5 MB / 1.432 GB Notification: Performance of simCode: created event and clocks part: time 6.177e-05/91.17, allocations: 13.81 kB / 23.92 GB, free: 182.5 MB / 1.432 GB Notification: Performance of simCode: created simulation system equations: time 0.02825/91.19, allocations: 12.68 MB / 23.94 GB, free: 182.1 MB / 1.432 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.07906/91.27, allocations: 13.6 MB / 23.95 GB, free: 181.9 MB / 1.432 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.2388/91.51, allocations: 68.74 MB / 24.02 GB, free: 173.5 MB / 1.432 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.09104/91.6, allocations: 24.08 MB / 24.04 GB, free: 172.1 MB / 1.432 GB Notification: Performance of SimCode: time 3.287e-06/91.6, allocations: 0 / 24.04 GB, free: 172.1 MB / 1.432 GB Notification: Performance of Templates: time 2.593/94.2, allocations: 0.7143 GB / 24.76 GB, free: 139.1 MB / 1.432 GB make -j1 -f Buildings_8_Buildings.Fluid.HeatExchangers.Validation.WetCoilDiscretizedInitializationPerfectGases.makefile (rm -f Buildings_8_Buildings.Fluid.HeatExchangers.Validation.WetCoilDiscretizedInitializationPerfectGases.pipe ; mkfifo Buildings_8_Buildings.Fluid.HeatExchangers.Validation.WetCoilDiscretizedInitializationPerfectGases.pipe ; head -c 1048576 < Buildings_8_Buildings.Fluid.HeatExchangers.Validation.WetCoilDiscretizedInitializationPerfectGases.pipe >> ../files/Buildings_8_Buildings.Fluid.HeatExchangers.Validation.WetCoilDiscretizedInitializationPerfectGases.sim & ./Buildings_8_Buildings.Fluid.HeatExchangers.Validation.WetCoilDiscretizedInitializationPerfectGases -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_8_Buildings.Fluid.HeatExchangers.Validation.WetCoilDiscretizedInitializationPerfectGases.pipe 2>&1)