Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_8_Buildings.Fluid.HeatPumps.Validation.Carnot_y_etaPL.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 8.1.4-maint.8.1.x/package.mo", uses=false) 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) 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.HeatPumps.Validation.Carnot_y_etaPL,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Fluid.HeatPumps.Validation.Carnot_y_etaPL") translateModel(Buildings.Fluid.HeatPumps.Validation.Carnot_y_etaPL,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Fluid.HeatPumps.Validation.Carnot_y_etaPL") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001081/0.001081, allocations: 101.4 kB / 15.7 MB, free: 28 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001072/0.001073, allocations: 190.8 kB / 16.63 MB, free: 6.438 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.39/1.39, allocations: 205.1 MB / 222.5 MB, free: 4.539 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.681/1.681, allocations: 292.3 MB / 0.549 GB, free: 12.73 MB / 462.1 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 0.001402/0.001402, allocations: 72.84 kB / 0.6723 GB, free: 25.93 MB / 0.5294 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2449/0.2464, allocations: 114.6 MB / 0.7841 GB, free: 12.75 MB / 0.6075 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatPumps.Validation.Carnot_y_etaPL): time 0.06983/0.3162, allocations: 75.23 MB / 0.8576 GB, free: 1.25 MB / 0.67 GB Notification: Performance of NFInst.instExpressions: time 0.01953/0.3358, allocations: 15.05 MB / 0.8723 GB, free: 2.156 MB / 0.6856 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002758/0.3387, allocations: 63.62 kB / 0.8723 GB, free: 2.094 MB / 0.6856 GB Notification: Performance of NFTyping.typeComponents: time 0.002513/0.3412, allocations: 0.8306 MB / 0.8732 GB, free: 1.258 MB / 0.6856 GB Notification: Performance of NFTyping.typeBindings: time 0.007199/0.3485, allocations: 2.569 MB / 0.8757 GB, free: 14.68 MB / 0.7012 GB Notification: Performance of NFTyping.typeClassSections: time 0.003881/0.3524, allocations: 1.403 MB / 0.877 GB, free: 13.29 MB / 0.7012 GB Notification: Performance of NFFlatten.flatten: time 0.005864/0.3582, allocations: 4.361 MB / 0.8813 GB, free: 8.91 MB / 0.7012 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002092/0.3604, allocations: 1.437 MB / 0.8827 GB, free: 7.441 MB / 0.7012 GB Notification: Performance of NFEvalConstants.evaluate: time 0.004187/0.3646, allocations: 1.648 MB / 0.8843 GB, free: 5.793 MB / 0.7012 GB Notification: Performance of NFSimplifyModel.simplify: time 0.00258/0.3672, allocations: 1.214 MB / 0.8855 GB, free: 4.574 MB / 0.7012 GB Notification: Performance of NFPackage.collectConstants: time 0.0004019/0.3676, allocations: 164 kB / 0.8857 GB, free: 4.414 MB / 0.7012 GB Notification: Performance of NFFlatten.collectFunctions: time 0.003435/0.371, allocations: 1.431 MB / 0.8871 GB, free: 2.98 MB / 0.7012 GB Notification: Performance of NFScalarize.scalarize: time 0.0004916/0.3715, allocations: 398.6 kB / 0.8874 GB, free: 2.59 MB / 0.7012 GB Notification: Performance of NFVerifyModel.verify: time 0.001308/0.3728, allocations: 0.906 MB / 0.8883 GB, free: 1.68 MB / 0.7012 GB Notification: Performance of NFConvertDAE.convert: time 0.00549/0.3783, allocations: 2.89 MB / 0.8911 GB, free: 14.78 MB / 0.7169 GB Notification: Performance of FrontEnd - DAE generated: time 6.402e-06/0.3784, allocations: 0 / 0.8911 GB, free: 14.78 MB / 0.7169 GB Notification: Performance of FrontEnd: time 2.575e-06/0.3784, allocations: 0 / 0.8911 GB, free: 14.78 MB / 0.7169 GB Notification: Performance of Transformations before backend: time 4.163e-05/0.3784, allocations: 0 / 0.8911 GB, free: 14.78 MB / 0.7169 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 240 * Number of variables: 240 Notification: Performance of Generate backend data structure: time 0.004165/0.3826, allocations: 2.095 MB / 0.8932 GB, free: 12.62 MB / 0.7169 GB Notification: Performance of prepare preOptimizeDAE: time 5.025e-05/0.3827, allocations: 8.031 kB / 0.8932 GB, free: 12.61 MB / 0.7169 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0008256/0.3835, allocations: 226.9 kB / 0.8934 GB, free: 12.39 MB / 0.7169 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002557/0.3861, allocations: 1.516 MB / 0.8949 GB, free: 10.82 MB / 0.7169 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 6.299e-05/0.3862, allocations: 81.98 kB / 0.895 GB, free: 10.74 MB / 0.7169 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001645/0.3863, allocations: 107.9 kB / 0.8951 GB, free: 10.63 MB / 0.7169 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002046/0.3884, allocations: 1.1 MB / 0.8961 GB, free: 9.496 MB / 0.7169 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.751e-05/0.3884, allocations: 3.938 kB / 0.8961 GB, free: 9.492 MB / 0.7169 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 8.955e-05/0.3885, allocations: 40 kB / 0.8962 GB, free: 9.453 MB / 0.7169 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.107e-05/0.3886, allocations: 28 kB / 0.8962 GB, free: 9.426 MB / 0.7169 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001839/0.3904, allocations: 0.8978 MB / 0.8971 GB, free: 8.531 MB / 0.7169 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 0.005852/0.3963, allocations: 4.919 MB / 0.9019 GB, free: 3.324 MB / 0.7169 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001386/0.3977, allocations: 0.6207 MB / 0.9025 GB, free: 2.695 MB / 0.7169 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0007252/0.3984, allocations: 358.3 kB / 0.9028 GB, free: 2.344 MB / 0.7169 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0006336/0.3991, allocations: 0.8238 MB / 0.9036 GB, free: 1.336 MB / 0.7169 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.999e-05/0.3991, allocations: 47.12 kB / 0.9037 GB, free: 1.281 MB / 0.7169 GB Notification: Performance of pre-optimization done (n=62): time 2.424e-06/0.3991, allocations: 0 / 0.9037 GB, free: 1.281 MB / 0.7169 GB Notification: Performance of matching and sorting (n=62): time 0.004917/0.404, allocations: 1.401 MB / 0.9051 GB, free: 15.85 MB / 0.7325 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.421e-05/0.4041, allocations: 55.97 kB / 0.9051 GB, free: 15.78 MB / 0.7325 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001645/0.4057, allocations: 1.229 MB / 0.9063 GB, free: 14.54 MB / 0.7325 GB Notification: Performance of collectPreVariables (initialization): time 9.535e-05/0.4059, allocations: 41.7 kB / 0.9064 GB, free: 14.49 MB / 0.7325 GB Notification: Performance of collectInitialEqns (initialization): time 0.0004785/0.4063, allocations: 0.6026 MB / 0.9069 GB, free: 13.88 MB / 0.7325 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001899/0.4065, allocations: 220.8 kB / 0.9072 GB, free: 13.66 MB / 0.7325 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002321/0.4068, allocations: 154.5 kB / 0.9073 GB, free: 13.5 MB / 0.7325 GB Notification: Performance of setup shared object (initialization): time 0.0001079/0.4069, allocations: 337.9 kB / 0.9076 GB, free: 13.17 MB / 0.7325 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0006685/0.4076, allocations: 296.6 kB / 0.9079 GB, free: 12.88 MB / 0.7325 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0008338/0.4084, allocations: 495.8 kB / 0.9084 GB, free: 12.32 MB / 0.7325 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001407/0.4098, allocations: 0.7121 MB / 0.9091 GB, free: 11.56 MB / 0.7325 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.979e-06/0.4099, allocations: 0 / 0.9091 GB, free: 11.56 MB / 0.7325 GB Notification: Performance of matching and sorting (n=88) (initialization): time 0.004711/0.4146, allocations: 1.269 MB / 0.9103 GB, free: 10.28 MB / 0.7325 GB Notification: Performance of prepare postOptimizeDAE: time 2.691e-05/0.4146, allocations: 4 kB / 0.9103 GB, free: 10.27 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.238e-05/0.4146, allocations: 4 kB / 0.9103 GB, free: 10.27 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0007021/0.4153, allocations: 157 kB / 0.9105 GB, free: 10.11 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006351/0.416, allocations: 155.8 kB / 0.9106 GB, free: 9.961 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0008644/0.4169, allocations: 0.7161 MB / 0.9113 GB, free: 9.219 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001112/0.418, allocations: 123.1 kB / 0.9114 GB, free: 9.098 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.973e-05/0.4181, allocations: 35.98 kB / 0.9115 GB, free: 9.062 MB / 0.7325 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001086/0.4192, allocations: 0.5593 MB / 0.912 GB, free: 8.5 MB / 0.7325 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.000803/0.42, allocations: 491.8 kB / 0.9125 GB, free: 7.945 MB / 0.7325 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001345/0.4214, allocations: 0.6965 MB / 0.9132 GB, free: 7.199 MB / 0.7325 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.795e-06/0.4214, allocations: 4 kB / 0.9132 GB, free: 7.195 MB / 0.7325 GB Notification: Performance of matching and sorting (n=88) (initialization_lambda0): time 0.004572/0.4259, allocations: 1.265 MB / 0.9144 GB, free: 5.918 MB / 0.7325 GB Notification: Performance of prepare postOptimizeDAE: time 1.473e-05/0.426, allocations: 6.656 kB / 0.9144 GB, free: 5.914 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.174e-06/0.426, allocations: 4 kB / 0.9144 GB, free: 5.91 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0006007/0.4266, allocations: 156.7 kB / 0.9146 GB, free: 5.754 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005934/0.4272, allocations: 159.7 kB / 0.9147 GB, free: 5.598 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0008705/0.4281, allocations: 0.7123 MB / 0.9154 GB, free: 4.859 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001332/0.4294, allocations: 107.5 kB / 0.9155 GB, free: 4.754 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 9.804e-05/0.4295, allocations: 35.98 kB / 0.9155 GB, free: 4.719 MB / 0.7325 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 15 * 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 (77): * Single equations (assignments): 76 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,11)} Notification: Performance of prepare postOptimizeDAE: time 0.0003341/0.4299, allocations: 226.5 kB / 0.9158 GB, free: 4.492 MB / 0.7325 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0004104/0.4303, allocations: 138.3 kB / 0.9159 GB, free: 4.355 MB / 0.7325 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.004686/0.435, allocations: 1.256 MB / 0.9171 GB, free: 3.086 MB / 0.7325 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.584e-05/0.435, allocations: 7.984 kB / 0.9171 GB, free: 3.078 MB / 0.7325 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 7.955e-06/0.435, allocations: 4 kB / 0.9171 GB, free: 3.074 MB / 0.7325 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.004016/0.4391, allocations: 1.084 MB / 0.9182 GB, free: 1.957 MB / 0.7325 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.4186/0.8577, allocations: 2.317 MB / 0.9205 GB, free: 136.4 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.086e-05/0.8578, allocations: 3.906 kB / 0.9205 GB, free: 136.4 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0005321/0.8583, allocations: 116.2 kB / 0.9206 GB, free: 136.4 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.000633/0.8589, allocations: 146 kB / 0.9207 GB, free: 136.4 MB / 0.7325 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 5.883e-05/0.859, allocations: 22.27 kB / 0.9207 GB, free: 136.4 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0007361/0.8598, allocations: 0.7084 MB / 0.9214 GB, free: 135.9 MB / 0.7325 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 7.944e-06/0.8598, allocations: 7.438 kB / 0.9214 GB, free: 135.9 MB / 0.7325 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003018/0.8628, allocations: 1.392 MB / 0.9228 GB, free: 135.6 MB / 0.7325 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0005925/0.8634, allocations: 310.6 kB / 0.9231 GB, free: 135.5 MB / 0.7325 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002021/0.8636, allocations: 17.45 kB / 0.9231 GB, free: 135.5 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0007931/0.8644, allocations: 59.03 kB / 0.9232 GB, free: 135.5 MB / 0.7325 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001309/0.8646, allocations: 60.27 kB / 0.9232 GB, free: 135.5 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 7.308e-05/0.8646, allocations: 31.31 kB / 0.9232 GB, free: 135.5 MB / 0.7325 GB Notification: Performance of sorting global known variables: time 0.001376/0.866, allocations: 0.8823 MB / 0.9241 GB, free: 135.1 MB / 0.7325 GB Notification: Performance of sort global known variables: time 1.6e-07/0.866, allocations: 0.8125 kB / 0.9241 GB, free: 135.1 MB / 0.7325 GB Notification: Performance of remove unused functions: time 0.002105/0.8681, allocations: 0.7122 MB / 0.9248 GB, free: 135.1 MB / 0.7325 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 15 * Number of states: 2 (heaPum.con.vol.dynBal.U,heaPum.eva.vol.dynBal.U) * 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 (55): * Single equations (assignments): 50 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 4 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,11)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0009381/0.8691, allocations: 464.8 kB / 0.9252 GB, free: 135 MB / 0.7325 GB Notification: Performance of simCode: created initialization part: time 0.002468/0.8716, allocations: 1.122 MB / 0.9263 GB, free: 134.6 MB / 0.7325 GB Notification: Performance of simCode: created event and clocks part: time 5.31e-06/0.8716, allocations: 2.656 kB / 0.9263 GB, free: 134.6 MB / 0.7325 GB Notification: Performance of simCode: created simulation system equations: time 0.0008479/0.8724, allocations: 400.4 kB / 0.9267 GB, free: 134.5 MB / 0.7325 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003441/0.8759, allocations: 0.8092 MB / 0.9275 GB, free: 134.4 MB / 0.7325 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.00358/0.8795, allocations: 2.275 MB / 0.9297 GB, free: 133.2 MB / 0.7325 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.000556/0.8801, allocations: 1.167 MB / 0.9309 GB, free: 132.5 MB / 0.7325 GB Notification: Performance of simCode: alias equations: time 0.001185/0.8813, allocations: 307.5 kB / 0.9312 GB, free: 132.4 MB / 0.7325 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002318/0.8815, allocations: 111.3 kB / 0.9313 GB, free: 132.4 MB / 0.7325 GB Notification: Performance of SimCode: time 9.62e-07/0.8815, allocations: 2.281 kB / 0.9313 GB, free: 132.4 MB / 0.7325 GB Notification: Performance of Templates: time 0.06035/0.9419, allocations: 32.3 MB / 0.9628 GB, free: 119 MB / 0.7325 GB make -j1 -f Buildings_8_Buildings.Fluid.HeatPumps.Validation.Carnot_y_etaPL.makefile (rm -f Buildings_8_Buildings.Fluid.HeatPumps.Validation.Carnot_y_etaPL.pipe ; mkfifo Buildings_8_Buildings.Fluid.HeatPumps.Validation.Carnot_y_etaPL.pipe ; head -c 1048576 < Buildings_8_Buildings.Fluid.HeatPumps.Validation.Carnot_y_etaPL.pipe >> ../files/Buildings_8_Buildings.Fluid.HeatPumps.Validation.Carnot_y_etaPL.sim & ./Buildings_8_Buildings.Fluid.HeatPumps.Validation.Carnot_y_etaPL -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_8_Buildings.Fluid.HeatPumps.Validation.Carnot_y_etaPL.pipe 2>&1)