Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IDEAS_dev_IDEAS.Fluid.HeatPumps.Examples.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/IDEAS 3.0.0-master/package.mo", uses=false) Using package IDEAS with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0-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(IDEAS.Fluid.HeatPumps.Examples.Carnot_y,fileNamePrefix="IDEAS_dev_IDEAS_Fluid_HeatPumps_Examples_Carnot_y",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IDEAS.Fluid.HeatPumps.Examples.Carnot_y,fileNamePrefix="IDEAS_dev_IDEAS_Fluid_HeatPumps_Examples_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 0.001102/0.001102, allocations: 108 kB / 15.61 MB, free: 152 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001452/0.001452, allocations: 196.8 kB / 16.53 MB, free: 6.664 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.434/1.434, 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/IDEAS 3.0.0-master/package.mo): time 0.9471/0.9471, allocations: 135.1 MB / 425.5 MB, free: 11.92 MB / 350.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001301/0.001301, allocations: 72.08 kB / 0.5054 GB, free: 5.211 MB / 414.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1333/0.1346, allocations: 80.93 MB / 0.5845 GB, free: 4.445 MB / 494.1 MB Notification: Performance of NFInst.instantiate(IDEAS.Fluid.HeatPumps.Examples.Carnot_y): time 0.2999/0.4345, allocations: 75.14 MB / 0.6579 GB, free: 6.918 MB / 0.4981 GB Notification: Performance of NFInst.instExpressions: time 0.01933/0.4539, allocations: 15.15 MB / 0.6726 GB, free: 12.04 MB / 0.5137 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002777/0.4567, allocations: 66.44 kB / 0.6727 GB, free: 12.02 MB / 0.5137 GB Notification: Performance of NFTyping.typeComponents: time 0.002198/0.4589, allocations: 0.8315 MB / 0.6735 GB, free: 11.49 MB / 0.5137 GB Notification: Performance of NFTyping.typeBindings: time 0.007012/0.466, allocations: 2.593 MB / 0.6761 GB, free: 9.934 MB / 0.5137 GB Notification: Performance of NFTyping.typeClassSections: time 0.003548/0.4696, allocations: 1.37 MB / 0.6774 GB, free: 9.156 MB / 0.5137 GB Notification: Performance of NFFlatten.flatten: time 0.006094/0.4757, allocations: 4.399 MB / 0.6817 GB, free: 6.961 MB / 0.5137 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002476/0.4782, allocations: 1.454 MB / 0.6831 GB, free: 6.246 MB / 0.5137 GB Notification: Performance of NFEvalConstants.evaluate: time 0.004058/0.4822, allocations: 1.639 MB / 0.6847 GB, free: 5.438 MB / 0.5137 GB Notification: Performance of NFSimplifyModel.simplify: time 0.002175/0.4844, allocations: 1.209 MB / 0.6859 GB, free: 4.875 MB / 0.5137 GB Notification: Performance of NFPackage.collectConstants: time 0.000285/0.4847, allocations: 163.3 kB / 0.686 GB, free: 4.875 MB / 0.5137 GB Notification: Performance of NFFlatten.collectFunctions: time 0.003494/0.4882, allocations: 1.403 MB / 0.6874 GB, free: 4.359 MB / 0.5137 GB Notification: Performance of NFScalarize.scalarize: time 0.0004335/0.4887, allocations: 404.8 kB / 0.6878 GB, free: 4.102 MB / 0.5137 GB Notification: Performance of NFVerifyModel.verify: time 0.001079/0.4898, allocations: 0.9083 MB / 0.6887 GB, free: 3.531 MB / 0.5137 GB Notification: Performance of NFConvertDAE.convert: time 0.004253/0.494, allocations: 2.841 MB / 0.6915 GB, free: 2.453 MB / 0.5137 GB Notification: Performance of FrontEnd - DAE generated: time 4.658e-06/0.494, allocations: 0 / 0.6915 GB, free: 2.453 MB / 0.5137 GB Notification: Performance of FrontEnd: time 1.283e-06/0.4941, allocations: 0 / 0.6915 GB, free: 2.453 MB / 0.5137 GB Notification: Performance of Transformations before backend: time 2.332e-05/0.4941, allocations: 1.219 kB / 0.6915 GB, free: 2.453 MB / 0.5137 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 0.003943/0.498, allocations: 2.088 MB / 0.6935 GB, free: 1.082 MB / 0.5137 GB Notification: Performance of prepare preOptimizeDAE: time 4.082e-05/0.4981, allocations: 10.38 kB / 0.6935 GB, free: 1.082 MB / 0.5137 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001917/0.4983, allocations: 151.9 kB / 0.6937 GB, free: 0.9805 MB / 0.5137 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0008389/0.4991, allocations: 231.8 kB / 0.6939 GB, free: 0.8906 MB / 0.5137 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002432/0.5016, allocations: 1.453 MB / 0.6953 GB, free: 15.99 MB / 0.5294 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 6.119e-05/0.5016, allocations: 76.44 kB / 0.6954 GB, free: 15.96 MB / 0.5294 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.000145/0.5018, allocations: 101.6 kB / 0.6955 GB, free: 15.93 MB / 0.5294 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002021/0.5038, allocations: 1.103 MB / 0.6965 GB, free: 15.43 MB / 0.5294 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.766e-05/0.5039, allocations: 4.734 kB / 0.6965 GB, free: 15.43 MB / 0.5294 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 9.242e-05/0.504, allocations: 38.47 kB / 0.6966 GB, free: 15.4 MB / 0.5294 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.641e-05/0.504, allocations: 28.48 kB / 0.6966 GB, free: 15.4 MB / 0.5294 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001965/0.506, allocations: 0.895 MB / 0.6975 GB, free: 15.09 MB / 0.5294 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 0.006334/0.5123, allocations: 4.945 MB / 0.7023 GB, free: 11.62 MB / 0.5294 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001477/0.5138, allocations: 0.618 MB / 0.7029 GB, free: 11.41 MB / 0.5294 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0007157/0.5145, allocations: 352.2 kB / 0.7033 GB, free: 11.29 MB / 0.5294 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0007213/0.5153, allocations: 0.8237 MB / 0.7041 GB, free: 10.34 MB / 0.5294 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.604e-05/0.5153, allocations: 42.44 kB / 0.7041 GB, free: 10.29 MB / 0.5294 GB Notification: Performance of pre-optimization done (n=61): time 4.749e-06/0.5153, allocations: 3.984 kB / 0.7041 GB, free: 10.29 MB / 0.5294 GB Notification: Performance of matching and sorting (n=61): time 0.007353/0.5227, allocations: 1.698 MB / 0.7058 GB, free: 9.781 MB / 0.5294 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.898e-05/0.5228, allocations: 62.28 kB / 0.7058 GB, free: 9.715 MB / 0.5294 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001934/0.5247, allocations: 1.228 MB / 0.707 GB, free: 9.211 MB / 0.5294 GB Notification: Performance of collectPreVariables (initialization): time 0.0001159/0.5248, allocations: 42.7 kB / 0.7071 GB, free: 9.168 MB / 0.5294 GB Notification: Performance of collectInitialEqns (initialization): time 0.0006335/0.5255, allocations: 0.6027 MB / 0.7076 GB, free: 8.656 MB / 0.5294 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002394/0.5257, allocations: 214.9 kB / 0.7079 GB, free: 8.469 MB / 0.5294 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002505/0.526, allocations: 152 kB / 0.708 GB, free: 8.379 MB / 0.5294 GB Notification: Performance of setup shared object (initialization): time 0.0001227/0.5261, allocations: 337.1 kB / 0.7083 GB, free: 8.051 MB / 0.5294 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0006873/0.5268, allocations: 294 kB / 0.7086 GB, free: 7.898 MB / 0.5294 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0008909/0.5277, allocations: 0.4933 MB / 0.7091 GB, free: 7.512 MB / 0.5294 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001498/0.5292, allocations: 0.7122 MB / 0.7098 GB, free: 7.066 MB / 0.5294 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.368e-06/0.5292, allocations: 1.062 kB / 0.7098 GB, free: 7.066 MB / 0.5294 GB Notification: Performance of matching and sorting (n=88) (initialization): time 0.004945/0.5342, allocations: 1.273 MB / 0.711 GB, free: 6.426 MB / 0.5294 GB Notification: Performance of prepare postOptimizeDAE: time 2.368e-05/0.5342, allocations: 6.656 kB / 0.711 GB, free: 6.426 MB / 0.5294 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.18e-05/0.5342, allocations: 3.969 kB / 0.711 GB, free: 6.426 MB / 0.5294 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0006017/0.5348, allocations: 143 kB / 0.7112 GB, free: 6.355 MB / 0.5294 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005929/0.5354, allocations: 153.1 kB / 0.7113 GB, free: 6.32 MB / 0.5294 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0008729/0.5363, allocations: 0.7068 MB / 0.712 GB, free: 5.695 MB / 0.5294 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001204/0.5375, allocations: 130.3 kB / 0.7121 GB, free: 5.609 MB / 0.5294 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.479e-05/0.5376, allocations: 31.39 kB / 0.7122 GB, free: 5.602 MB / 0.5294 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001108/0.5387, allocations: 0.553 MB / 0.7127 GB, free: 5.266 MB / 0.5294 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0007701/0.5395, allocations: 498.7 kB / 0.7132 GB, free: 4.879 MB / 0.5294 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001325/0.5409, allocations: 0.7032 MB / 0.7139 GB, free: 4.434 MB / 0.5294 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.244e-06/0.5409, allocations: 0 / 0.7139 GB, free: 4.434 MB / 0.5294 GB Notification: Performance of matching and sorting (n=88) (initialization_lambda0): time 0.004713/0.5456, allocations: 1.265 MB / 0.7151 GB, free: 3.801 MB / 0.5294 GB Notification: Performance of prepare postOptimizeDAE: time 1.167e-05/0.5456, allocations: 6.406 kB / 0.7151 GB, free: 3.801 MB / 0.5294 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.612e-06/0.5456, allocations: 7.938 kB / 0.7151 GB, free: 3.797 MB / 0.5294 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0005005/0.5461, allocations: 140.3 kB / 0.7152 GB, free: 3.73 MB / 0.5294 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005786/0.5467, allocations: 158 kB / 0.7154 GB, free: 3.691 MB / 0.5294 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0007789/0.5475, allocations: 0.7022 MB / 0.7161 GB, free: 3.07 MB / 0.5294 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001066/0.5486, allocations: 107 kB / 0.7162 GB, free: 3.008 MB / 0.5294 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.237e-05/0.5487, allocations: 35.36 kB / 0.7162 GB, free: 2.996 MB / 0.5294 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 (78): * Single equations (assignments): 77 * 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 {(1,10)} Notification: Performance of prepare postOptimizeDAE: time 0.0002374/0.5489, allocations: 221.8 kB / 0.7164 GB, free: 2.785 MB / 0.5294 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002541/0.5492, allocations: 135 kB / 0.7166 GB, free: 2.715 MB / 0.5294 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.004675/0.5539, allocations: 1.268 MB / 0.7178 GB, free: 2.016 MB / 0.5294 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.664e-05/0.5539, allocations: 9.156 kB / 0.7178 GB, free: 2.012 MB / 0.5294 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 8.326e-06/0.5539, allocations: 6.266 kB / 0.7178 GB, free: 2.008 MB / 0.5294 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.004091/0.558, allocations: 1.1 MB / 0.7189 GB, free: 1.379 MB / 0.5294 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.006486/0.5645, allocations: 2.617 MB / 0.7214 GB, free: 15.57 MB / 0.545 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.783e-06/0.5645, allocations: 4.062 kB / 0.7214 GB, free: 15.57 MB / 0.545 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0004501/0.565, allocations: 112.1 kB / 0.7215 GB, free: 15.52 MB / 0.545 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0004624/0.5654, allocations: 132.6 kB / 0.7217 GB, free: 15.39 MB / 0.545 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 5.152e-05/0.5655, allocations: 23.98 kB / 0.7217 GB, free: 15.37 MB / 0.545 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.004914/0.5704, allocations: 2.629 MB / 0.7243 GB, free: 12.59 MB / 0.545 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.268e-06/0.5704, allocations: 4 kB / 0.7243 GB, free: 12.59 MB / 0.545 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.005104/0.5756, allocations: 1.707 MB / 0.7259 GB, free: 10.82 MB / 0.545 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0005476/0.5761, allocations: 307.3 kB / 0.7262 GB, free: 10.5 MB / 0.545 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002786/0.5764, allocations: 20 kB / 0.7262 GB, free: 10.48 MB / 0.545 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0008553/0.5773, allocations: 51.88 kB / 0.7263 GB, free: 10.43 MB / 0.545 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001336/0.5774, allocations: 68.22 kB / 0.7264 GB, free: 10.36 MB / 0.545 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 6.611e-05/0.5775, allocations: 31.98 kB / 0.7264 GB, free: 10.33 MB / 0.545 GB Notification: Performance of sorting global known variables: time 0.001374/0.5789, allocations: 0.8857 MB / 0.7273 GB, free: 9.441 MB / 0.545 GB Notification: Performance of sort global known variables: time 2.21e-07/0.5789, allocations: 0 / 0.7273 GB, free: 9.441 MB / 0.545 GB Notification: Performance of remove unused functions: time 0.002236/0.5811, allocations: 0.7135 MB / 0.728 GB, free: 8.727 MB / 0.545 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 {(1,10)} Notification: Performance of Backend phase and start with SimCode phase: time 0.006452/0.5876, allocations: 2.592 MB / 0.7305 GB, free: 6.066 MB / 0.545 GB Notification: Performance of simCode: created initialization part: time 0.002995/0.5906, allocations: 1.16 MB / 0.7316 GB, free: 4.914 MB / 0.545 GB Notification: Performance of simCode: created event and clocks part: time 6.733e-06/0.5906, allocations: 0 / 0.7316 GB, free: 4.914 MB / 0.545 GB Notification: Performance of simCode: created simulation system equations: time 0.001466/0.5921, allocations: 0.5565 MB / 0.7322 GB, free: 4.348 MB / 0.545 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003795/0.5959, allocations: 0.8016 MB / 0.7329 GB, free: 3.59 MB / 0.545 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02207/0.618, allocations: 10.5 MB / 0.7432 GB, free: 8.57 MB / 0.5606 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0008362/0.6188, allocations: 1.182 MB / 0.7444 GB, free: 7.359 MB / 0.5606 GB Notification: Performance of simCode: alias equations: time 0.001435/0.6203, allocations: 307 kB / 0.7446 GB, free: 7.055 MB / 0.5606 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0007708/0.6211, allocations: 0.5188 MB / 0.7452 GB, free: 6.535 MB / 0.5606 GB Notification: Performance of SimCode: time 2.935e-06/0.6211, allocations: 0 / 0.7452 GB, free: 6.535 MB / 0.5606 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.07467/0.6958, allocations: 42.33 MB / 0.7865 GB, free: 12.66 MB / 0.6075 GB Notification: Performance of buildModelFMU: Generate platform static: time 11.92/12.61, allocations: 8.125 kB / 0.7865 GB, free: 12.66 MB / 0.6075 GB (rm -f IDEAS_dev_IDEAS.Fluid.HeatPumps.Examples.Carnot_y.pipe ; mkfifo IDEAS_dev_IDEAS.Fluid.HeatPumps.Examples.Carnot_y.pipe ; head -c 1048576 < IDEAS_dev_IDEAS.Fluid.HeatPumps.Examples.Carnot_y.pipe >> ../files/IDEAS_dev_IDEAS.Fluid.HeatPumps.Examples.Carnot_y.sim & python3 -m fmpy simulate --output-file IDEAS_dev_IDEAS.Fluid.HeatPumps.Examples.Carnot_y_res.csv --start-time 0 --stop-time 3600 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 1.44 IDEAS_dev_IDEAS_Fluid_HeatPumps_Examples_Carnot_y.fmu > IDEAS_dev_IDEAS.Fluid.HeatPumps.Examples.Carnot_y.pipe 2>&1)