Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.Fluid.Chillers.ModularReversible.Validation.Carnot_y.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 12.0.0-master/package.mo", uses=false) Using package Buildings with version 12.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-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.Fluid.Chillers.ModularReversible.Validation.Carnot_y,fileNamePrefix="Buildings_latest_Buildings_Fluid_Chillers_ModularReversible_Validation_Carnot_y",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Fluid.Chillers.ModularReversible.Validation.Carnot_y,fileNamePrefix="Buildings_latest_Buildings_Fluid_Chillers_ModularReversible_Validation_Carnot_y",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 0.001471/0.001471, allocations: 108 kB / 15.6 MB, free: 132 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001338/0.001338, allocations: 194.6 kB / 16.53 MB, free: 6.391 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.281/1.281, allocations: 222.9 MB / 240.2 MB, free: 4.422 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-master/package.mo): time 2.589/2.589, allocations: 482.4 MB / 0.7547 GB, free: 10.98 MB / 0.6075 GB Notification: Performance of FrontEnd - loaded program: time 0.001673/0.001673, allocations: 68.27 kB / 0.9239 GB, free: 29.42 MB / 0.7169 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2391/0.2407, allocations: 162.2 MB / 1.082 GB, free: 13.22 MB / 0.8419 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Chillers.ModularReversible.Validation.Carnot_y): time 0.06769/0.3085, allocations: 75.56 MB / 1.156 GB, free: 1.402 MB / 0.9044 GB Notification: Performance of NFInst.instExpressions: time 0.01614/0.3246, allocations: 12.8 MB / 1.169 GB, free: 4.566 MB / 0.92 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001059/0.3257, allocations: 67.62 kB / 1.169 GB, free: 4.5 MB / 0.92 GB Notification: Performance of NFTyping.typeComponents: time 0.001491/0.3273, allocations: 0.8306 MB / 1.17 GB, free: 3.664 MB / 0.92 GB Notification: Performance of NFTyping.typeBindings: time 0.004158/0.3314, allocations: 2.468 MB / 1.172 GB, free: 1.184 MB / 0.92 GB Notification: Performance of NFTyping.typeClassSections: time 0.002433/0.3339, allocations: 1.389 MB / 1.173 GB, free: 15.8 MB / 0.9356 GB Notification: Performance of NFFlatten.flatten: time 0.003909/0.3378, allocations: 4.427 MB / 1.178 GB, free: 11.37 MB / 0.9356 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001512/0.3393, allocations: 1.441 MB / 1.179 GB, free: 9.891 MB / 0.9356 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002761/0.3421, allocations: 1.795 MB / 1.181 GB, free: 8.094 MB / 0.9356 GB Notification: Performance of NFSimplifyModel.simplify: time 0.00122/0.3433, allocations: 1.198 MB / 1.182 GB, free: 6.891 MB / 0.9356 GB Notification: Performance of NFPackage.collectConstants: time 0.0002098/0.3435, allocations: 164 kB / 1.182 GB, free: 6.73 MB / 0.9356 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002166/0.3457, allocations: 1.396 MB / 1.183 GB, free: 5.332 MB / 0.9356 GB Notification: Performance of NFScalarize.scalarize: time 0.0003444/0.3461, allocations: 406.6 kB / 1.184 GB, free: 4.934 MB / 0.9356 GB Notification: Performance of NFVerifyModel.verify: time 0.0007949/0.3469, allocations: 0.9254 MB / 1.185 GB, free: 4.004 MB / 0.9356 GB Notification: Performance of NFConvertDAE.convert: time 0.002741/0.3496, allocations: 2.855 MB / 1.188 GB, free: 1.141 MB / 0.9356 GB Notification: Performance of FrontEnd - DAE generated: time 5.21e-06/0.3496, allocations: 4 kB / 1.188 GB, free: 1.137 MB / 0.9356 GB Notification: Performance of FrontEnd: time 1.032e-06/0.3496, allocations: 3.938 kB / 1.188 GB, free: 1.133 MB / 0.9356 GB Notification: Performance of Transformations before backend: time 1.459e-05/0.3496, allocations: 0 / 1.188 GB, free: 1.133 MB / 0.9356 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 0.003064/0.3527, allocations: 2.099 MB / 1.19 GB, free: 14.97 MB / 0.9512 GB Notification: Performance of prepare preOptimizeDAE: time 3.231e-05/0.3528, allocations: 12.03 kB / 1.19 GB, free: 14.96 MB / 0.9512 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001597/0.3529, allocations: 144.1 kB / 1.19 GB, free: 14.81 MB / 0.9512 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0007113/0.3536, allocations: 234.8 kB / 1.19 GB, free: 14.58 MB / 0.9512 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002037/0.3557, allocations: 1.474 MB / 1.191 GB, free: 13.05 MB / 0.9512 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 5.725e-05/0.3557, allocations: 78 kB / 1.191 GB, free: 12.97 MB / 0.9512 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001348/0.3559, allocations: 103.9 kB / 1.192 GB, free: 12.87 MB / 0.9512 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001755/0.3577, allocations: 1.1 MB / 1.193 GB, free: 11.73 MB / 0.9512 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.243e-05/0.3577, allocations: 3.984 kB / 1.193 GB, free: 11.73 MB / 0.9512 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 8.78e-05/0.3578, allocations: 44 kB / 1.193 GB, free: 11.69 MB / 0.9512 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.141e-05/0.3578, allocations: 27.94 kB / 1.193 GB, free: 11.66 MB / 0.9512 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.00174/0.3596, allocations: 0.8783 MB / 1.194 GB, free: 10.78 MB / 0.9512 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 0.005276/0.3648, allocations: 4.967 MB / 1.198 GB, free: 5.527 MB / 0.9512 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001265/0.3661, allocations: 0.6158 MB / 1.199 GB, free: 4.91 MB / 0.9512 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0006521/0.3668, allocations: 334.4 kB / 1.199 GB, free: 4.582 MB / 0.9512 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0006071/0.3674, allocations: 0.8277 MB / 1.2 GB, free: 3.57 MB / 0.9512 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.174e-05/0.3674, allocations: 43.12 kB / 1.2 GB, free: 3.516 MB / 0.9512 GB Notification: Performance of pre-optimization done (n=61): time 1.572e-06/0.3674, allocations: 0 / 1.2 GB, free: 3.516 MB / 0.9512 GB Notification: Performance of matching and sorting (n=61): time 0.006872/0.3743, allocations: 1.709 MB / 1.202 GB, free: 1.777 MB / 0.9512 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.943e-05/0.3744, allocations: 59.97 kB / 1.202 GB, free: 1.707 MB / 0.9512 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001423/0.3758, allocations: 1.258 MB / 1.203 GB, free: 444 kB / 0.9512 GB Notification: Performance of collectPreVariables (initialization): time 5.412e-05/0.3759, allocations: 41.7 kB / 1.203 GB, free: 396 kB / 0.9512 GB Notification: Performance of collectInitialEqns (initialization): time 0.0004884/0.3764, allocations: 0.6067 MB / 1.204 GB, free: 15.77 MB / 0.9669 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001678/0.3765, allocations: 212.9 kB / 1.204 GB, free: 15.56 MB / 0.9669 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002055/0.3767, allocations: 158.5 kB / 1.204 GB, free: 15.4 MB / 0.9669 GB Notification: Performance of setup shared object (initialization): time 0.0001251/0.3769, allocations: 326 kB / 1.204 GB, free: 15.08 MB / 0.9669 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0006194/0.3775, allocations: 288.7 kB / 1.205 GB, free: 14.79 MB / 0.9669 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0007947/0.3783, allocations: 499.8 kB / 1.205 GB, free: 14.23 MB / 0.9669 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001326/0.3796, allocations: 0.7089 MB / 1.206 GB, free: 13.47 MB / 0.9669 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.449e-06/0.3797, allocations: 3.938 kB / 1.206 GB, free: 13.47 MB / 0.9669 GB Notification: Performance of matching and sorting (n=88) (initialization): time 0.00436/0.384, allocations: 1.269 MB / 1.207 GB, free: 12.19 MB / 0.9669 GB Notification: Performance of prepare postOptimizeDAE: time 1.179e-05/0.384, allocations: 4 kB / 1.207 GB, free: 12.18 MB / 0.9669 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.7e-06/0.3841, allocations: 4 kB / 1.207 GB, free: 12.18 MB / 0.9669 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0005238/0.3846, allocations: 145.1 kB / 1.207 GB, free: 12.04 MB / 0.9669 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005305/0.3851, allocations: 159.7 kB / 1.207 GB, free: 11.88 MB / 0.9669 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0007762/0.3859, allocations: 0.7083 MB / 1.208 GB, free: 11.14 MB / 0.9669 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0007577/0.3867, allocations: 119 kB / 1.208 GB, free: 11.03 MB / 0.9669 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.681e-05/0.3867, allocations: 32.06 kB / 1.208 GB, free: 11 MB / 0.9669 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.000921/0.3877, allocations: 0.5526 MB / 1.209 GB, free: 10.44 MB / 0.9669 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0007705/0.3885, allocations: 491.8 kB / 1.209 GB, free: 9.887 MB / 0.9669 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.00131/0.3898, allocations: 0.6933 MB / 1.21 GB, free: 9.145 MB / 0.9669 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.004e-06/0.3898, allocations: 4 kB / 1.21 GB, free: 9.141 MB / 0.9669 GB Notification: Performance of matching and sorting (n=88) (initialization_lambda0): time 0.004321/0.3941, allocations: 1.257 MB / 1.211 GB, free: 7.871 MB / 0.9669 GB Notification: Performance of prepare postOptimizeDAE: time 1.105e-05/0.3941, allocations: 8 kB / 1.211 GB, free: 7.863 MB / 0.9669 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.292e-06/0.3941, allocations: 7.938 kB / 1.211 GB, free: 7.855 MB / 0.9669 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.000452/0.3946, allocations: 141.1 kB / 1.211 GB, free: 7.715 MB / 0.9669 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005263/0.3951, allocations: 159.8 kB / 1.212 GB, free: 7.559 MB / 0.9669 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0007418/0.3959, allocations: 0.6966 MB / 1.212 GB, free: 6.836 MB / 0.9669 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0007778/0.3967, allocations: 99.56 kB / 1.212 GB, free: 6.738 MB / 0.9669 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.15e-05/0.3967, allocations: 32 kB / 1.212 GB, free: 6.707 MB / 0.9669 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 16 * 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 (79): * Single equations (assignments): 78 * 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 {(1,9)} Notification: Performance of prepare postOptimizeDAE: time 0.0001707/0.3969, allocations: 228.1 kB / 1.213 GB, free: 6.477 MB / 0.9669 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002055/0.3971, allocations: 138.2 kB / 1.213 GB, free: 6.34 MB / 0.9669 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.004328/0.4015, allocations: 1.255 MB / 1.214 GB, free: 5.07 MB / 0.9669 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.532e-05/0.4015, allocations: 11.98 kB / 1.214 GB, free: 5.059 MB / 0.9669 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.978e-06/0.4015, allocations: 3.938 kB / 1.214 GB, free: 5.055 MB / 0.9669 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.003905/0.4054, allocations: 1.088 MB / 1.215 GB, free: 3.934 MB / 0.9669 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.005747/0.4112, allocations: 2.591 MB / 1.217 GB, free: 1.23 MB / 0.9669 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.901e-06/0.4112, allocations: 4 kB / 1.218 GB, free: 1.227 MB / 0.9669 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0004225/0.4116, allocations: 116.2 kB / 1.218 GB, free: 1.113 MB / 0.9669 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0004433/0.4121, allocations: 136.9 kB / 1.218 GB, free: 0.9766 MB / 0.9669 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.308e-05/0.4121, allocations: 23.92 kB / 1.218 GB, free: 0.9531 MB / 0.9669 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.004677/0.4168, allocations: 2.591 MB / 1.22 GB, free: 14.21 MB / 0.9825 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.961e-06/0.4168, allocations: 11.88 kB / 1.22 GB, free: 14.2 MB / 0.9825 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.004876/0.4217, allocations: 1.68 MB / 1.222 GB, free: 12.44 MB / 0.9825 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0003821/0.4221, allocations: 311.1 kB / 1.222 GB, free: 12.12 MB / 0.9825 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001466/0.4222, allocations: 20 kB / 1.222 GB, free: 12.1 MB / 0.9825 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.000698/0.4229, allocations: 52 kB / 1.222 GB, free: 12.05 MB / 0.9825 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001043/0.4231, allocations: 60.23 kB / 1.222 GB, free: 11.99 MB / 0.9825 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.24e-05/0.4231, allocations: 31.98 kB / 1.222 GB, free: 11.96 MB / 0.9825 GB Notification: Performance of sorting global known variables: time 0.001076/0.4242, allocations: 0.906 MB / 1.223 GB, free: 11.05 MB / 0.9825 GB Notification: Performance of sort global known variables: time 1.1e-07/0.4242, allocations: 0 / 1.223 GB, free: 11.05 MB / 0.9825 GB Notification: Performance of remove unused functions: time 0.001463/0.4257, allocations: 0.7253 MB / 1.224 GB, free: 10.32 MB / 0.9825 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 15 * Number of states: 2 (chi.con.vol.dynBal.U,chi.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 (56): * Single equations (assignments): 51 * 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 {(1,9)} Notification: Performance of Backend phase and start with SimCode phase: time 0.005817/0.4315, allocations: 2.598 MB / 1.227 GB, free: 7.664 MB / 0.9825 GB Notification: Performance of simCode: created initialization part: time 0.002395/0.4339, allocations: 1.145 MB / 1.228 GB, free: 6.527 MB / 0.9825 GB Notification: Performance of simCode: created event and clocks part: time 2.665e-06/0.4339, allocations: 0 / 1.228 GB, free: 6.527 MB / 0.9825 GB Notification: Performance of simCode: created simulation system equations: time 0.001338/0.4353, allocations: 0.5603 MB / 1.228 GB, free: 5.953 MB / 0.9825 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.00297/0.4382, allocations: 0.8071 MB / 1.229 GB, free: 5.172 MB / 0.9825 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0186/0.4568, allocations: 10.68 MB / 1.239 GB, free: 9.965 MB / 0.9981 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0007673/0.4576, allocations: 1.191 MB / 1.241 GB, free: 8.742 MB / 0.9981 GB Notification: Performance of simCode: alias equations: time 0.0009354/0.4586, allocations: 302.5 kB / 1.241 GB, free: 8.445 MB / 0.9981 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0006473/0.4592, allocations: 0.5188 MB / 1.241 GB, free: 7.926 MB / 0.9981 GB Notification: Performance of SimCode: time 2.1e-07/0.4592, allocations: 0 / 1.241 GB, free: 7.926 MB / 0.9981 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 6.782/7.242, allocations: 43.2 MB / 1.284 GB, free: 155.9 MB / 0.9981 GB Notification: Performance of buildModelFMU: Generate platform static: time 13.05/20.29, allocations: 11.78 kB / 1.284 GB, free: 155.9 MB / 0.9981 GB (rm -f Buildings_latest_Buildings.Fluid.Chillers.ModularReversible.Validation.Carnot_y.pipe ; mkfifo Buildings_latest_Buildings.Fluid.Chillers.ModularReversible.Validation.Carnot_y.pipe ; head -c 1048576 < Buildings_latest_Buildings.Fluid.Chillers.ModularReversible.Validation.Carnot_y.pipe >> ../files/Buildings_latest_Buildings.Fluid.Chillers.ModularReversible.Validation.Carnot_y.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=Buildings_latest_Buildings.Fluid.Chillers.ModularReversible.Validation.Carnot_y_res.mat --tempDir=temp_Buildings_latest_Buildings_Fluid_Chillers_ModularReversible_Validation_Carnot_y_fmu --startTime=0 --stopTime=3600 --timeout=400 --tolerance=1e-06 Buildings_latest_Buildings_Fluid_Chillers_ModularReversible_Validation_Carnot_y.fmu > Buildings_latest_Buildings.Fluid.Chillers.ModularReversible.Validation.Carnot_y.pipe 2>&1)