Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Fluid.HeatPumps.Calibration.ScrollWaterToWater.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/IBPSA 4.0.0-master/package.mo", uses=false) Using package IBPSA with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-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: translateModel(IBPSA.Fluid.HeatPumps.Calibration.ScrollWaterToWater,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.HeatPumps.Calibration.ScrollWaterToWater") translateModel(IBPSA.Fluid.HeatPumps.Calibration.ScrollWaterToWater,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.HeatPumps.Calibration.ScrollWaterToWater") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001611/0.001611, allocations: 102.2 kB / 16.27 MB, free: 5.93 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001846/0.001846, allocations: 190.5 kB / 17.2 MB, free: 5.574 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.371/1.371, allocations: 222.9 MB / 240.9 MB, free: 15.23 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.7653/0.7653, allocations: 126.1 MB / 417.1 MB, free: 12.85 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.001296/0.001296, allocations: 63.91 kB / 0.495 GB, free: 3.523 MB / 414.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3694/0.3708, allocations: 78.71 MB / 0.5718 GB, free: 31.21 MB / 446.1 MB Notification: Performance of NFInst.instantiate(IBPSA.Fluid.HeatPumps.Calibration.ScrollWaterToWater): time 0.1495/0.5203, allocations: 126.1 MB / 0.695 GB, free: 8.227 MB / 0.5294 GB Notification: Performance of NFInst.instExpressions: time 0.02186/0.5423, allocations: 15.44 MB / 0.71 GB, free: 8.746 MB / 0.545 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002419/0.5447, allocations: 71.56 kB / 0.7101 GB, free: 8.676 MB / 0.545 GB Notification: Performance of NFTyping.typeComponents: time 0.002765/0.5475, allocations: 0.9588 MB / 0.711 GB, free: 7.711 MB / 0.545 GB Notification: Performance of NFTyping.typeBindings: time 0.00728/0.5548, allocations: 2.612 MB / 0.7136 GB, free: 5.094 MB / 0.545 GB Notification: Performance of NFTyping.typeClassSections: time 0.005696/0.5605, allocations: 2.114 MB / 0.7157 GB, free: 3.004 MB / 0.545 GB Notification: Performance of NFFlatten.flatten: time 0.006384/0.5669, allocations: 4.786 MB / 0.7203 GB, free: 14.2 MB / 0.5606 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002715/0.5697, allocations: 1.702 MB / 0.722 GB, free: 12.47 MB / 0.5606 GB Notification: Performance of NFEvalConstants.evaluate: time 0.004221/0.5739, allocations: 1.82 MB / 0.7238 GB, free: 10.65 MB / 0.5606 GB Notification: Performance of NFSimplifyModel.simplify: time 0.002546/0.5765, allocations: 1.334 MB / 0.7251 GB, free: 9.312 MB / 0.5606 GB Notification: Performance of NFPackage.collectConstants: time 0.0006125/0.5771, allocations: 204 kB / 0.7253 GB, free: 9.113 MB / 0.5606 GB Notification: Performance of NFFlatten.collectFunctions: time 0.004778/0.5819, allocations: 1.978 MB / 0.7272 GB, free: 7.133 MB / 0.5606 GB Notification: Performance of NFScalarize.scalarize: time 0.001017/0.5829, allocations: 0.4945 MB / 0.7277 GB, free: 6.637 MB / 0.5606 GB Notification: Performance of NFVerifyModel.verify: time 0.002529/0.5855, allocations: 1.089 MB / 0.7287 GB, free: 5.543 MB / 0.5606 GB Notification: Performance of NFConvertDAE.convert: time 0.006766/0.5923, allocations: 3.67 MB / 0.7323 GB, free: 1.863 MB / 0.5606 GB Notification: Performance of FrontEnd - DAE generated: time 3.607e-06/0.5923, allocations: 3.938 kB / 0.7323 GB, free: 1.859 MB / 0.5606 GB Notification: Performance of FrontEnd: time 1.352e-06/0.5923, allocations: 0 / 0.7323 GB, free: 1.859 MB / 0.5606 GB Notification: Performance of Transformations before backend: time 7.855e-05/0.5924, allocations: 4 kB / 0.7323 GB, free: 1.855 MB / 0.5606 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 312 * Number of variables: 312 Notification: Performance of Generate backend data structure: time 0.005896/0.5983, allocations: 2.447 MB / 0.7347 GB, free: 15.34 MB / 0.5762 GB Notification: Performance of prepare preOptimizeDAE: time 4.043e-05/0.5983, allocations: 12.03 kB / 0.7347 GB, free: 15.32 MB / 0.5762 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.00588/0.6042, allocations: 0.716 MB / 0.7354 GB, free: 14.61 MB / 0.5762 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.003345/0.6076, allocations: 1.619 MB / 0.737 GB, free: 12.93 MB / 0.5762 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001567/0.6078, allocations: 140.1 kB / 0.7371 GB, free: 12.79 MB / 0.5762 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.000288/0.6081, allocations: 127.9 kB / 0.7373 GB, free: 12.66 MB / 0.5762 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.004466/0.6126, allocations: 1.732 MB / 0.739 GB, free: 10.83 MB / 0.5762 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.807e-05/0.6126, allocations: 4 kB / 0.739 GB, free: 10.82 MB / 0.5762 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001803/0.6128, allocations: 52 kB / 0.739 GB, free: 10.77 MB / 0.5762 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.992e-05/0.6128, allocations: 47.88 kB / 0.7391 GB, free: 10.73 MB / 0.5762 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.004956/0.6178, allocations: 1.504 MB / 0.7405 GB, free: 9.215 MB / 0.5762 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 0.01142/0.6292, allocations: 7.595 MB / 0.7479 GB, free: 1.203 MB / 0.5762 GB Notification: Performance of preOpt comSubExp (simulation): time 0.004225/0.6335, allocations: 1.166 MB / 0.7491 GB, free: 32 kB / 0.5762 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.2783/0.9118, allocations: 0.5865 MB / 0.7497 GB, free: 164.9 MB / 0.5762 GB Notification: Performance of preOpt evalFunc (simulation): time 0.00114/0.913, allocations: 1.275 MB / 0.7509 GB, free: 163.5 MB / 0.5762 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.002599/0.9156, allocations: 0.6926 MB / 0.7516 GB, free: 163.4 MB / 0.5762 GB Notification: Performance of pre-optimization done (n=80): time 3.817e-06/0.9157, allocations: 1.781 kB / 0.7516 GB, free: 163.4 MB / 0.5762 GB Notification: Performance of matching and sorting (n=80): time 0.01955/0.9352, allocations: 3.172 MB / 0.7547 GB, free: 162.7 MB / 0.5762 GB Notification: Performance of inlineWhenForInitialization (initialization): time 7.179e-05/0.9353, allocations: 141.3 kB / 0.7548 GB, free: 162.6 MB / 0.5762 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.00234/0.9377, allocations: 1.286 MB / 0.7561 GB, free: 162.1 MB / 0.5762 GB Notification: Performance of collectPreVariables (initialization): time 0.0001658/0.9378, allocations: 49.73 kB / 0.7561 GB, free: 162 MB / 0.5762 GB Notification: Performance of collectInitialEqns (initialization): time 0.0006023/0.9385, allocations: 0.7206 MB / 0.7568 GB, free: 161.6 MB / 0.5762 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002933/0.9388, allocations: 281 kB / 0.7571 GB, free: 161.4 MB / 0.5762 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004006/0.9392, allocations: 221.8 kB / 0.7573 GB, free: 161.3 MB / 0.5762 GB Notification: Performance of setup shared object (initialization): time 9.821e-05/0.9393, allocations: 346.5 kB / 0.7576 GB, free: 161 MB / 0.5762 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001937/0.9412, allocations: 0.5295 MB / 0.7581 GB, free: 160.8 MB / 0.5762 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.002092/0.9433, allocations: 0.7932 MB / 0.7589 GB, free: 160.4 MB / 0.5762 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.003838/0.9472, allocations: 1.233 MB / 0.7601 GB, free: 159.8 MB / 0.5762 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 8.385e-06/0.9472, allocations: 9.812 kB / 0.7601 GB, free: 159.8 MB / 0.5762 GB Notification: Performance of matching and sorting (n=119) (initialization): time 0.005194/0.9524, allocations: 1.653 MB / 0.7617 GB, free: 159.2 MB / 0.5762 GB Notification: Performance of prepare postOptimizeDAE: time 2.435e-05/0.9524, allocations: 8.5 kB / 0.7618 GB, free: 159.2 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.282e-05/0.9525, allocations: 5.531 kB / 0.7618 GB, free: 159.2 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.002162/0.9546, allocations: 0.5646 MB / 0.7623 GB, free: 159.1 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001297/0.9559, allocations: 255 kB / 0.7626 GB, free: 159 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001867/0.9578, allocations: 1.164 MB / 0.7637 GB, free: 158.1 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001959/0.9598, allocations: 185 kB / 0.7639 GB, free: 158 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001126/0.9599, allocations: 55.67 kB / 0.7639 GB, free: 158 MB / 0.5762 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.002429/0.9624, allocations: 0.829 MB / 0.7647 GB, free: 157.5 MB / 0.5762 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.002024/0.9644, allocations: 0.792 MB / 0.7655 GB, free: 156.9 MB / 0.5762 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0038/0.9682, allocations: 1.211 MB / 0.7667 GB, free: 156.2 MB / 0.5762 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 5.67e-06/0.9682, allocations: 2.906 kB / 0.7667 GB, free: 156.2 MB / 0.5762 GB Notification: Performance of matching and sorting (n=119) (initialization_lambda0): time 0.005361/0.9736, allocations: 1.644 MB / 0.7683 GB, free: 155.4 MB / 0.5762 GB Notification: Performance of prepare postOptimizeDAE: time 2.571e-05/0.9736, allocations: 6.281 kB / 0.7683 GB, free: 155.4 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.128e-05/0.9737, allocations: 10.53 kB / 0.7683 GB, free: 155.4 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001869/0.9755, allocations: 0.5678 MB / 0.7689 GB, free: 155.1 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001323/0.9769, allocations: 249.8 kB / 0.7691 GB, free: 155.1 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001858/0.9788, allocations: 1.164 MB / 0.7702 GB, free: 154.2 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001947/0.9807, allocations: 167.2 kB / 0.7704 GB, free: 154.1 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001263/0.9809, allocations: 54.45 kB / 0.7705 GB, free: 154.1 MB / 0.5762 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 27 * Number of states: 0 () * Number of discrete variables: 7 ($PRE.calDat.nextTimeEvent,$whenCondition1,heaPum.com.isOn,$PRE.heaPum.com.isOn,calDat.nextTimeEventScaled,$PRE.calDat.nextTimeEventScaled,calDat.nextTimeEvent) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (91): * Single equations (assignments): 90 * 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 {(4,25)} Notification: Performance of prepare postOptimizeDAE: time 0.0003796/0.9812, allocations: 245.1 kB / 0.7707 GB, free: 153.9 MB / 0.5762 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0003656/0.9816, allocations: 151.2 kB / 0.7708 GB, free: 153.8 MB / 0.5762 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01261/0.9942, allocations: 2.123 MB / 0.7729 GB, free: 152.6 MB / 0.5762 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.17e-05/0.9943, allocations: 11.92 kB / 0.7729 GB, free: 152.6 MB / 0.5762 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 9.899e-06/0.9943, allocations: 3.938 kB / 0.7729 GB, free: 152.6 MB / 0.5762 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.01186/1.006, allocations: 1.956 MB / 0.7748 GB, free: 151.6 MB / 0.5762 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.007149/1.013, allocations: 3.646 MB / 0.7784 GB, free: 148.9 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.891e-06/1.013, allocations: 2.375 kB / 0.7784 GB, free: 148.9 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001054/1.014, allocations: 181.8 kB / 0.7786 GB, free: 148.9 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.001771/1.016, allocations: 0.5507 MB / 0.7791 GB, free: 148.6 MB / 0.5762 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 7.72e-05/1.016, allocations: 35.08 kB / 0.7791 GB, free: 148.6 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001663/1.018, allocations: 1.153 MB / 0.7803 GB, free: 147.8 MB / 0.5762 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.288e-06/1.018, allocations: 11.56 kB / 0.7803 GB, free: 147.8 MB / 0.5762 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.004698/1.023, allocations: 1.581 MB / 0.7818 GB, free: 146.7 MB / 0.5762 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0005617/1.023, allocations: 379 kB / 0.7822 GB, free: 146.3 MB / 0.5762 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002083/1.023, allocations: 17.59 kB / 0.7822 GB, free: 146.2 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001504/1.025, allocations: 119.8 kB / 0.7823 GB, free: 146.1 MB / 0.5762 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001085/1.025, allocations: 58.86 kB / 0.7824 GB, free: 146.1 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 9.636e-05/1.025, allocations: 55.92 kB / 0.7824 GB, free: 146 MB / 0.5762 GB Notification: Performance of sorting global known variables: time 0.001028/1.026, allocations: 0.8829 MB / 0.7833 GB, free: 145.1 MB / 0.5762 GB Notification: Performance of sort global known variables: time 1.7e-07/1.026, allocations: 0 / 0.7833 GB, free: 145.1 MB / 0.5762 GB Notification: Performance of remove unused functions: time 0.002376/1.029, allocations: 0.9679 MB / 0.7842 GB, free: 144.2 MB / 0.5762 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 7 * Number of states: 0 () * Number of discrete variables: 4 ($whenCondition1,calDat.nextTimeEvent,calDat.nextTimeEventScaled,heaPum.com.isOn) * Number of discrete states: 3 (calDat.nextTimeEvent,heaPum.com.isOn,calDat.nextTimeEventScaled) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (54): * Single equations (assignments): 49 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 2 * When equations: 2 * 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 {(4,25)} Notification: Performance of Backend phase and start with SimCode phase: time 0.00186/1.031, allocations: 0.8907 MB / 0.7851 GB, free: 143.6 MB / 0.5762 GB Notification: Performance of simCode: created initialization part: time 0.006513/1.037, allocations: 2.071 MB / 0.7871 GB, free: 141.6 MB / 0.5762 GB Notification: Performance of simCode: created event and clocks part: time 6.402e-06/1.037, allocations: 0 / 0.7871 GB, free: 141.6 MB / 0.5762 GB Notification: Performance of simCode: created simulation system equations: time 0.001953/1.039, allocations: 0.6282 MB / 0.7877 GB, free: 140.9 MB / 0.5762 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003215/1.042, allocations: 0.7677 MB / 0.7885 GB, free: 140.2 MB / 0.5762 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.00485/1.047, allocations: 2.733 MB / 0.7912 GB, free: 137.4 MB / 0.5762 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005078/1.048, allocations: 1.263 MB / 0.7924 GB, free: 136.2 MB / 0.5762 GB Notification: Performance of simCode: alias equations: time 0.001594/1.049, allocations: 362.4 kB / 0.7927 GB, free: 135.8 MB / 0.5762 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0003104/1.05, allocations: 143.3 kB / 0.7929 GB, free: 135.7 MB / 0.5762 GB Notification: Performance of SimCode: time 6.91e-07/1.05, allocations: 4 kB / 0.7929 GB, free: 135.7 MB / 0.5762 GB Notification: Performance of Templates: time 0.04882/1.098, allocations: 40.03 MB / 0.832 GB, free: 96.05 MB / 0.5762 GB make -j1 -f IBPSA_latest_IBPSA.Fluid.HeatPumps.Calibration.ScrollWaterToWater.makefile (rm -f IBPSA_latest_IBPSA.Fluid.HeatPumps.Calibration.ScrollWaterToWater.pipe ; mkfifo IBPSA_latest_IBPSA.Fluid.HeatPumps.Calibration.ScrollWaterToWater.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Fluid.HeatPumps.Calibration.ScrollWaterToWater.pipe >> ../files/IBPSA_latest_IBPSA.Fluid.HeatPumps.Calibration.ScrollWaterToWater.sim & ./IBPSA_latest_IBPSA.Fluid.HeatPumps.Calibration.ScrollWaterToWater -abortSlowSimulation -alarm=480 -lv LOG_STATS > IBPSA_latest_IBPSA.Fluid.HeatPumps.Calibration.ScrollWaterToWater.pipe 2>&1)