Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr IDEAS_IDEAS.Fluid.HeatPumps.Validation.ReciprocatingWaterToWater_VariableSpeed.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/package.mo", uses=false) Using package IDEAS with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/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(IDEAS.Fluid.HeatPumps.Validation.ReciprocatingWaterToWater_VariableSpeed,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IDEAS_IDEAS.Fluid.HeatPumps.Validation.ReciprocatingWaterToWater_VariableSpeed") translateModel(IDEAS.Fluid.HeatPumps.Validation.ReciprocatingWaterToWater_VariableSpeed,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IDEAS_IDEAS.Fluid.HeatPumps.Validation.ReciprocatingWaterToWater_VariableSpeed") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001031/0.001031, allocations: 86.72 kB / 15.06 MB, free: 1.09 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001296/0.001296, allocations: 168.7 kB / 15.95 MB, free: 204 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.286/1.286, allocations: 223.3 MB / 240 MB, free: 5.406 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0/package.mo): time 0.7353/0.7353, allocations: 132.4 MB / 423.4 MB, free: 2.035 MB / 350.1 MB Notification: Performance of FrontEnd - loaded program: time 0.0002839/0.0002839, allocations: 12 kB / 0.5034 GB, free: 4.219 MB / 366.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3431/0.3434, allocations: 81.58 MB / 0.5831 GB, free: 3.941 MB / 430.1 MB Notification: Performance of NFInst.instantiate(IDEAS.Fluid.HeatPumps.Validation.ReciprocatingWaterToWater_VariableSpeed): time 0.05868/0.4021, allocations: 64.53 MB / 0.6461 GB, free: 15.88 MB / 494.1 MB Notification: Performance of NFInst.instExpressions: time 0.01824/0.4203, allocations: 13.56 MB / 0.6593 GB, free: 2.293 MB / 494.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.002195/0.4226, allocations: 67.56 kB / 0.6594 GB, free: 2.227 MB / 494.1 MB Notification: Performance of NFTyping.typeComponents: time 0.002056/0.4247, allocations: 0.6366 MB / 0.66 GB, free: 1.586 MB / 494.1 MB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/Fluid/Sources.mo:784:36-785:54:writable] Warning: 'each' used when modifying non-array element m_flow. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/Fluid/Sources.mo:782:36-783:54:writable] Warning: 'each' used when modifying non-array element m_flow. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/Fluid/Sources.mo:784:36-785:54:writable] Warning: 'each' used when modifying non-array element m_flow. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/Fluid/Sources.mo:782:36-783:54:writable] Warning: 'each' used when modifying non-array element m_flow. Notification: Performance of NFTyping.typeBindings: time 0.0055/0.4302, allocations: 2.019 MB / 0.662 GB, free: 15.56 MB / 0.4981 GB Notification: Performance of NFTyping.typeClassSections: time 0.003924/0.4341, allocations: 1.407 MB / 0.6634 GB, free: 14.18 MB / 0.4981 GB Notification: Performance of NFFlatten.flatten: time 0.00561/0.4397, allocations: 5.142 MB / 0.6684 GB, free: 9.023 MB / 0.4981 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001908/0.4416, allocations: 1.16 MB / 0.6695 GB, free: 7.832 MB / 0.4981 GB Notification: Performance of NFEvalConstants.evaluate: time 0.00258/0.4442, allocations: 1.388 MB / 0.6709 GB, free: 6.438 MB / 0.4981 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0018/0.4461, allocations: 1.135 MB / 0.672 GB, free: 5.297 MB / 0.4981 GB Notification: Performance of NFPackage.collectConstants: time 0.0003014/0.4464, allocations: 72 kB / 0.6721 GB, free: 5.227 MB / 0.4981 GB Notification: Performance of NFFlatten.collectFunctions: time 0.003279/0.4497, allocations: 1.431 MB / 0.6735 GB, free: 3.793 MB / 0.4981 GB Notification: Performance of NFScalarize.scalarize: time 0.0004383/0.4501, allocations: 322.6 kB / 0.6738 GB, free: 3.477 MB / 0.4981 GB Notification: Performance of NFVerifyModel.verify: time 0.0005701/0.4507, allocations: 404.8 kB / 0.6741 GB, free: 3.074 MB / 0.4981 GB Notification: Performance of NFConvertDAE.convert: time 0.00298/0.4537, allocations: 2.599 MB / 0.6767 GB, free: 480 kB / 0.4981 GB Notification: Performance of FrontEnd - DAE generated: time 3.997e-06/0.4537, allocations: 0 / 0.6767 GB, free: 480 kB / 0.4981 GB Notification: Performance of FrontEnd: time 1.873e-06/0.4537, allocations: 8 kB / 0.6767 GB, free: 472 kB / 0.4981 GB Notification: Performance of Transformations before backend: time 5.812e-05/0.4538, allocations: 0 / 0.6767 GB, free: 472 kB / 0.4981 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 296 * Number of variables: 296 Notification: Performance of Generate backend data structure: time 0.003698/0.4575, allocations: 2.013 MB / 0.6787 GB, free: 14.38 MB / 0.5137 GB Notification: Performance of prepare preOptimizeDAE: time 3.091e-05/0.4575, allocations: 12.03 kB / 0.6787 GB, free: 14.36 MB / 0.5137 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.004501/0.462, allocations: 0.6924 MB / 0.6793 GB, free: 13.67 MB / 0.5137 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002262/0.4643, allocations: 1.527 MB / 0.6808 GB, free: 12.09 MB / 0.5137 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001231/0.4644, allocations: 132 kB / 0.681 GB, free: 11.95 MB / 0.5137 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001834/0.4646, allocations: 120 kB / 0.6811 GB, free: 11.83 MB / 0.5137 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.003538/0.4682, allocations: 1.644 MB / 0.6827 GB, free: 10.1 MB / 0.5137 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.984e-05/0.4682, allocations: 7.984 kB / 0.6827 GB, free: 10.09 MB / 0.5137 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001313/0.4683, allocations: 55.94 kB / 0.6827 GB, free: 10.04 MB / 0.5137 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.412e-05/0.4684, allocations: 43.94 kB / 0.6828 GB, free: 9.992 MB / 0.5137 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.004291/0.4727, allocations: 1.48 MB / 0.6842 GB, free: 8.504 MB / 0.5137 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 0.008753/0.4815, allocations: 7.005 MB / 0.6911 GB, free: 1.156 MB / 0.5137 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002109/0.4836, allocations: 0.7868 MB / 0.6918 GB, free: 372 kB / 0.5137 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001495/0.4851, allocations: 0.5029 MB / 0.6923 GB, free: 15.86 MB / 0.5294 GB Notification: Performance of preOpt evalFunc (simulation): time 0.00114/0.4862, allocations: 1.271 MB / 0.6936 GB, free: 14.31 MB / 0.5294 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001767/0.488, allocations: 0.6636 MB / 0.6942 GB, free: 13.61 MB / 0.5294 GB Notification: Performance of pre-optimization done (n=69): time 2.495e-06/0.488, allocations: 0 / 0.6942 GB, free: 13.61 MB / 0.5294 GB Notification: Performance of matching and sorting (n=69): time 0.009008/0.497, allocations: 2.158 MB / 0.6963 GB, free: 11.43 MB / 0.5294 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001274/0.4972, allocations: 336.9 kB / 0.6966 GB, free: 11.02 MB / 0.5294 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001927/0.4991, allocations: 1.376 MB / 0.698 GB, free: 9.637 MB / 0.5294 GB Notification: Performance of collectPreVariables (initialization): time 9.492e-05/0.4992, allocations: 45.7 kB / 0.698 GB, free: 9.586 MB / 0.5294 GB Notification: Performance of collectInitialEqns (initialization): time 0.000576/0.4998, allocations: 0.6998 MB / 0.6987 GB, free: 8.879 MB / 0.5294 GB Notification: Performance of collectInitialBindings (initialization): time 0.000214/0.5, allocations: 240.6 kB / 0.6989 GB, free: 8.641 MB / 0.5294 GB Notification: Performance of simplifyInitialFunctions (initialization): time 6.725e-05/0.5001, allocations: 20 kB / 0.699 GB, free: 8.621 MB / 0.5294 GB Notification: Performance of setup shared object (initialization): time 0.0001097/0.5002, allocations: 341.9 kB / 0.6993 GB, free: 8.281 MB / 0.5294 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001751/0.502, allocations: 0.5172 MB / 0.6998 GB, free: 7.766 MB / 0.5294 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001945/0.5039, allocations: 0.8296 MB / 0.7006 GB, free: 6.82 MB / 0.5294 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001802/0.5058, allocations: 0.6059 MB / 0.7012 GB, free: 6.211 MB / 0.5294 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.218e-06/0.5058, allocations: 0 / 0.7012 GB, free: 6.211 MB / 0.5294 GB Notification: Performance of matching and sorting (n=117) (initialization): time 0.006568/0.5123, allocations: 1.829 MB / 0.703 GB, free: 4.367 MB / 0.5294 GB Notification: Performance of prepare postOptimizeDAE: time 0.0001655/0.5125, allocations: 306.6 kB / 0.7033 GB, free: 3.977 MB / 0.5294 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.247e-05/0.5125, allocations: 11.98 kB / 0.7033 GB, free: 3.965 MB / 0.5294 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001275/0.5138, allocations: 373.2 kB / 0.7036 GB, free: 3.602 MB / 0.5294 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001352/0.5152, allocations: 275.5 kB / 0.7039 GB, free: 3.332 MB / 0.5294 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001086/0.5163, allocations: 0.9001 MB / 0.7048 GB, free: 2.406 MB / 0.5294 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002078/0.5184, allocations: 287.4 kB / 0.7051 GB, free: 2.125 MB / 0.5294 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001094/0.5185, allocations: 64.56 kB / 0.7051 GB, free: 2.062 MB / 0.5294 GB Notification: Performance of prepare postOptimizeDAE: time 6.993e-06/0.5185, allocations: 4 kB / 0.7051 GB, free: 2.059 MB / 0.5294 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.006344/0.5249, allocations: 1.685 MB / 0.7068 GB, free: 368 kB / 0.5294 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.171e-05/0.5249, allocations: 8 kB / 0.7068 GB, free: 360 kB / 0.5294 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001156/0.5261, allocations: 369.2 kB / 0.7071 GB, free: 15.99 MB / 0.545 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001344/0.5274, allocations: 279.5 kB / 0.7074 GB, free: 15.72 MB / 0.545 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001044/0.5285, allocations: 0.8962 MB / 0.7083 GB, free: 14.8 MB / 0.545 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001824/0.5303, allocations: 254.8 kB / 0.7085 GB, free: 14.55 MB / 0.545 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001062/0.5304, allocations: 67.88 kB / 0.7086 GB, free: 14.48 MB / 0.545 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 28 * Number of states: 0 () * Number of discrete variables: 7 ($whenCondition1,$PRE.heaPum.com.isOn,heaPum.com.isOn,$PRE.N.T_start,N.T_start,$PRE.N.count,N.count) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (98): * Single equations (assignments): 96 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 1 {2 17} Notification: Performance of prepare postOptimizeDAE: time 0.0006706/0.5311, allocations: 454.4 kB / 0.709 GB, free: 14.03 MB / 0.545 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.00021/0.5313, allocations: 150.2 kB / 0.7092 GB, free: 13.88 MB / 0.545 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.003742/0.5351, allocations: 1.276 MB / 0.7104 GB, free: 12.59 MB / 0.545 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.23e-05/0.5351, allocations: 8 kB / 0.7104 GB, free: 12.58 MB / 0.545 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.422e-06/0.5351, allocations: 4 kB / 0.7104 GB, free: 12.57 MB / 0.545 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.003161/0.5383, allocations: 1.084 MB / 0.7115 GB, free: 11.46 MB / 0.545 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.006386/0.5447, allocations: 3.322 MB / 0.7147 GB, free: 8.008 MB / 0.545 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 9.387e-06/0.5447, allocations: 4 kB / 0.7147 GB, free: 8.004 MB / 0.545 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0009286/0.5456, allocations: 180 kB / 0.7149 GB, free: 7.828 MB / 0.545 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.001163/0.5468, allocations: 358 kB / 0.7152 GB, free: 7.48 MB / 0.545 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 6.409e-05/0.5469, allocations: 31.97 kB / 0.7153 GB, free: 7.449 MB / 0.545 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001051/0.548, allocations: 0.8959 MB / 0.7161 GB, free: 6.527 MB / 0.545 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.679e-06/0.548, allocations: 4 kB / 0.7161 GB, free: 6.523 MB / 0.545 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.005117/0.5531, allocations: 1.961 MB / 0.7181 GB, free: 4.477 MB / 0.545 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0006478/0.5538, allocations: 398.9 kB / 0.7184 GB, free: 4.066 MB / 0.545 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.000214/0.554, allocations: 20 kB / 0.7185 GB, free: 4.047 MB / 0.545 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.00152/0.5555, allocations: 167.8 kB / 0.7186 GB, free: 3.883 MB / 0.545 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001237/0.5556, allocations: 64.28 kB / 0.7187 GB, free: 3.82 MB / 0.545 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 8.368e-05/0.5557, allocations: 43.95 kB / 0.7187 GB, free: 3.777 MB / 0.545 GB Notification: Performance of sorting global known variables: time 0.001499/0.5572, allocations: 0.9823 MB / 0.7197 GB, free: 2.797 MB / 0.545 GB Notification: Performance of sort global known variables: time 2.91e-07/0.5572, allocations: 0 / 0.7197 GB, free: 2.797 MB / 0.545 GB Notification: Performance of remove unused functions: time 0.002268/0.5595, allocations: 0.8967 MB / 0.7206 GB, free: 1.898 MB / 0.545 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 19 * Number of states: 2 (heaPum.con.vol.dynBal.U,heaPum.eva.vol.dynBal.U) * Number of discrete variables: 4 ($whenCondition1,heaPum.com.isOn,N.T_start,N.count) * Number of discrete states: 2 (N.count,heaPum.com.isOn) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (51): * Single equations (assignments): 46 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 2 * When equations: 2 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 1 {2 17} Notification: Performance of Backend phase and start with SimCode phase: time 0.0009922/0.5605, allocations: 0.5402 MB / 0.7211 GB, free: 1.363 MB / 0.545 GB Notification: Performance of simCode: created initialization part: time 0.005717/0.5663, allocations: 2.004 MB / 0.723 GB, free: 15.34 MB / 0.5606 GB Notification: Performance of simCode: created event and clocks part: time 6.392e-06/0.5663, allocations: 4 kB / 0.723 GB, free: 15.34 MB / 0.5606 GB Notification: Performance of simCode: created simulation system equations: time 0.00172/0.568, allocations: 0.5715 MB / 0.7236 GB, free: 14.77 MB / 0.5606 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003341/0.5714, allocations: 0.7927 MB / 0.7244 GB, free: 14 MB / 0.5606 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.005643/0.577, allocations: 3.156 MB / 0.7275 GB, free: 10.76 MB / 0.5606 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0007717/0.5778, allocations: 1.219 MB / 0.7286 GB, free: 9.516 MB / 0.5606 GB Notification: Performance of simCode: alias equations: time 0.001684/0.5795, allocations: 378 kB / 0.729 GB, free: 9.156 MB / 0.5606 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0003222/0.5798, allocations: 131.3 kB / 0.7291 GB, free: 9.027 MB / 0.5606 GB Notification: Performance of SimCode: time 4.3e-07/0.5798, allocations: 0 / 0.7291 GB, free: 9.027 MB / 0.5606 GB Notification: Performance of Templates: time 0.05381/0.6336, allocations: 36.01 MB / 0.7643 GB, free: 5.457 MB / 0.5919 GB make -j1 -f IDEAS_IDEAS.Fluid.HeatPumps.Validation.ReciprocatingWaterToWater_VariableSpeed.makefile (rm -f IDEAS_IDEAS.Fluid.HeatPumps.Validation.ReciprocatingWaterToWater_VariableSpeed.pipe ; mkfifo IDEAS_IDEAS.Fluid.HeatPumps.Validation.ReciprocatingWaterToWater_VariableSpeed.pipe ; head -c 1048576 < IDEAS_IDEAS.Fluid.HeatPumps.Validation.ReciprocatingWaterToWater_VariableSpeed.pipe >> ../files/IDEAS_IDEAS.Fluid.HeatPumps.Validation.ReciprocatingWaterToWater_VariableSpeed.sim & ./IDEAS_IDEAS.Fluid.HeatPumps.Validation.ReciprocatingWaterToWater_VariableSpeed -abortSlowSimulation -alarm=480 -lv LOG_STATS > IDEAS_IDEAS.Fluid.HeatPumps.Validation.ReciprocatingWaterToWater_VariableSpeed.pipe 2>&1)