Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr IBPSA_latest_IBPSA.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU.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.HeatExchangers.Validation.DryCoilEffectivenessNTU,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU") translateModel(IBPSA.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0008795/0.0008795, allocations: 95.19 kB / 16.33 MB, free: 5.582 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.0008629/0.0008632, allocations: 190.9 kB / 17.23 MB, free: 5.508 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.559/1.559, allocations: 223.2 MB / 241.2 MB, free: 5.281 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.781/0.781, allocations: 114.3 MB / 406.7 MB, free: 3.941 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.000366/0.0003661, allocations: 8 kB / 494.5 MB, free: 7.988 MB / 350.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2222/0.2225, allocations: 77.26 MB / 0.5583 GB, free: 10.93 MB / 430.1 MB Notification: Performance of NFInst.instantiate(IBPSA.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU): time 1.32/1.543, allocations: 325.6 MB / 0.8763 GB, free: 8.664 MB / 0.6231 GB Notification: Performance of NFInst.instExpressions: time 0.04839/1.591, allocations: 29.98 MB / 0.9056 GB, free: 8.051 MB / 0.6231 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.01096/1.602, allocations: 142.7 kB / 0.9057 GB, free: 8.051 MB / 0.6231 GB Notification: Performance of NFTyping.typeComponents: time 0.009712/1.612, allocations: 1.82 MB / 0.9075 GB, free: 8.023 MB / 0.6231 GB Notification: Performance of NFTyping.typeBindings: time 0.03179/1.644, allocations: 6.103 MB / 0.9135 GB, free: 7.754 MB / 0.6231 GB Notification: Performance of NFTyping.typeClassSections: time 0.01158/1.656, allocations: 3.05 MB / 0.9165 GB, free: 7.02 MB / 0.6231 GB Notification: Performance of NFFlatten.flatten: time 0.02631/1.682, allocations: 13.98 MB / 0.9301 GB, free: 4.582 MB / 0.6231 GB Notification: Performance of NFFlatten.resolveConnections: time 0.00856/1.691, allocations: 3.356 MB / 0.9334 GB, free: 19.37 MB / 0.6387 GB Notification: Performance of NFEvalConstants.evaluate: time 0.01813/1.709, allocations: 5.654 MB / 0.9389 GB, free: 18.33 MB / 0.6387 GB Notification: Performance of NFSimplifyModel.simplify: time 0.01025/1.719, allocations: 3.673 MB / 0.9425 GB, free: 16.93 MB / 0.6387 GB Notification: Performance of NFPackage.collectConstants: time 0.002196/1.721, allocations: 212.1 kB / 0.9427 GB, free: 16.93 MB / 0.6387 GB Notification: Performance of NFFlatten.collectFunctions: time 0.01428/1.736, allocations: 3.412 MB / 0.946 GB, free: 14.81 MB / 0.6387 GB Notification: Performance of NFScalarize.scalarize: time 0.003735/1.739, allocations: 1.144 MB / 0.9471 GB, free: 13.96 MB / 0.6387 GB Notification: Performance of NFVerifyModel.verify: time 0.004302/1.744, allocations: 1.068 MB / 0.9482 GB, free: 13.25 MB / 0.6387 GB Notification: Performance of NFConvertDAE.convert: time 0.01336/1.757, allocations: 6.373 MB / 0.9544 GB, free: 7.949 MB / 0.6387 GB Notification: Performance of FrontEnd - DAE generated: time 8.786e-06/1.757, allocations: 3.75 kB / 0.9544 GB, free: 7.949 MB / 0.6387 GB Notification: Performance of FrontEnd: time 3.387e-06/1.757, allocations: 0 / 0.9544 GB, free: 7.949 MB / 0.6387 GB Notification: Performance of Transformations before backend: time 0.0002802/1.758, allocations: 4 kB / 0.9544 GB, free: 7.945 MB / 0.6387 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 822 * Number of variables: 822 Notification: Performance of Generate backend data structure: time 0.01769/1.775, allocations: 5.304 MB / 0.9596 GB, free: 3.031 MB / 0.6387 GB Notification: Performance of prepare preOptimizeDAE: time 5.362e-05/1.775, allocations: 8.031 kB / 0.9596 GB, free: 3.023 MB / 0.6387 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01218/1.787, allocations: 2.219 MB / 0.9618 GB, free: 0.8438 MB / 0.6387 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.01145/1.799, allocations: 3.616 MB / 0.9653 GB, free: 14.3 MB / 0.6544 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.002874/1.802, allocations: 0.902 MB / 0.9662 GB, free: 13.51 MB / 0.6544 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001741/1.804, allocations: 358.4 kB / 0.9665 GB, free: 13.27 MB / 0.6544 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01247/1.816, allocations: 4.87 MB / 0.9713 GB, free: 9.762 MB / 0.6544 GB Notification: Performance of preOpt findStateOrder (simulation): time 5.823e-05/1.816, allocations: 7.875 kB / 0.9713 GB, free: 9.754 MB / 0.6544 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004103/1.817, allocations: 139 kB / 0.9714 GB, free: 9.723 MB / 0.6544 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001842/1.817, allocations: 156.6 kB / 0.9716 GB, free: 9.574 MB / 0.6544 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01422/1.831, allocations: 5.518 MB / 0.977 GB, free: 5.641 MB / 0.6544 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 0.04293/1.874, allocations: 19.71 MB / 0.9962 GB, free: 5.016 MB / 0.67 GB Notification: Performance of preOpt comSubExp (simulation): time 0.01125/1.885, allocations: 4.03 MB / 1 GB, free: 1.93 MB / 0.67 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.005083/1.891, allocations: 2.115 MB / 1.002 GB, free: 396 kB / 0.67 GB Notification: Performance of preOpt evalFunc (simulation): time 0.001078/1.892, allocations: 0.708 MB / 1.003 GB, free: 15.59 MB / 0.6856 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.005573/1.897, allocations: 2.386 MB / 1.005 GB, free: 13.75 MB / 0.6856 GB Notification: Performance of pre-optimization done (n=247): time 4.739e-06/1.897, allocations: 0 / 1.005 GB, free: 13.75 MB / 0.6856 GB Notification: Performance of matching and sorting (n=247): time 0.01573/1.913, allocations: 6.032 MB / 1.011 GB, free: 9.051 MB / 0.6856 GB Notification: Performance of inlineWhenForInitialization (initialization): time 9.827e-05/1.913, allocations: 107.1 kB / 1.011 GB, free: 8.926 MB / 0.6856 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.00648/1.92, allocations: 3.627 MB / 1.015 GB, free: 5.438 MB / 0.6856 GB Notification: Performance of collectPreVariables (initialization): time 0.0009055/1.921, allocations: 89.7 kB / 1.015 GB, free: 5.344 MB / 0.6856 GB Notification: Performance of collectInitialEqns (initialization): time 0.001946/1.923, allocations: 1.85 MB / 1.017 GB, free: 3.492 MB / 0.6856 GB Notification: Performance of collectInitialBindings (initialization): time 0.001195/1.924, allocations: 0.8255 MB / 1.017 GB, free: 2.672 MB / 0.6856 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002187/1.924, allocations: 63.94 kB / 1.018 GB, free: 2.609 MB / 0.6856 GB Notification: Performance of setup shared object (initialization): time 0.0002579/1.924, allocations: 424.3 kB / 1.018 GB, free: 2.188 MB / 0.6856 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.005172/1.929, allocations: 1.981 MB / 1.02 GB, free: 208 kB / 0.6856 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.006414/1.936, allocations: 2.714 MB / 1.023 GB, free: 13.23 MB / 0.7012 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.005814/1.942, allocations: 2.115 MB / 1.025 GB, free: 11.1 MB / 0.7012 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.89e-05/1.942, allocations: 4 kB / 1.025 GB, free: 11.09 MB / 0.7012 GB Notification: Performance of matching and sorting (n=389) (initialization): time 0.01418/1.956, allocations: 5.127 MB / 1.03 GB, free: 5.922 MB / 0.7012 GB Notification: Performance of prepare postOptimizeDAE: time 0.0005197/1.957, allocations: 447.4 kB / 1.03 GB, free: 5.332 MB / 0.7012 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.759e-05/1.957, allocations: 12 kB / 1.03 GB, free: 5.32 MB / 0.7012 GB Notification: Performance of postOpt tearingSystem (initialization): time 6.427e-05/1.957, allocations: 27.98 kB / 1.03 GB, free: 5.293 MB / 0.7012 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.006248/1.963, allocations: 1.232 MB / 1.031 GB, free: 4.062 MB / 0.7012 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003797/1.967, allocations: 5.958 MB / 1.037 GB, free: 13.87 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.007799/1.975, allocations: 0.8514 MB / 1.038 GB, free: 13.02 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001145/1.976, allocations: 155.9 kB / 1.038 GB, free: 12.87 MB / 0.7169 GB Notification: Performance of prepare postOptimizeDAE: time 2.267e-05/1.976, allocations: 7.953 kB / 1.038 GB, free: 12.86 MB / 0.7169 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.01496/1.991, allocations: 4.726 MB / 1.043 GB, free: 8.098 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.335e-05/1.991, allocations: 12 kB / 1.043 GB, free: 8.086 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (initialization): time 4.081e-05/1.991, allocations: 24.78 kB / 1.043 GB, free: 8.062 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005194/1.996, allocations: 1.084 MB / 1.044 GB, free: 6.977 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 7.854e-05/1.996, allocations: 27.92 kB / 1.044 GB, free: 6.949 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.006432/2.003, allocations: 0.8098 MB / 1.045 GB, free: 6.137 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0007759/2.003, allocations: 154.6 kB / 1.045 GB, free: 5.988 MB / 0.7169 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 46 * Number of states: 0 () * Number of discrete variables: 15 ($whenCondition1,$PRE.trapezoid.T_start,trapezoid.T_start,$PRE.trapezoid.count,trapezoid.count,hexCroUnm.flowRegime,hexCroUnm.flowRegime_nominal,hexCroC1Unm.flowRegime,hexCroC1Unm.flowRegime_nominal,hexCroC1Mix.flowRegime,hexCroC1Mix.flowRegime_nominal,hexCou.flowRegime,hexCou.flowRegime_nominal,hexPar.flowRegime,hexPar.flowRegime_nominal) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (388): * Single equations (assignments): 377 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 10 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 0 * Non-linear Jacobian: 10 {1,1,1,1,1,1,1,1,1,1} * Without analytic Jacobian: 0 Notification: Performance of prepare postOptimizeDAE: time 0.003534/2.007, allocations: 0.8991 MB / 1.046 GB, free: 5.078 MB / 0.7169 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.002027/2.009, allocations: 450.5 kB / 1.046 GB, free: 4.633 MB / 0.7169 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01421/2.023, allocations: 4.829 MB / 1.051 GB, free: 15.75 MB / 0.7325 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.894e-05/2.023, allocations: 32 kB / 1.051 GB, free: 15.72 MB / 0.7325 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.761e-05/2.023, allocations: 0 / 1.051 GB, free: 15.72 MB / 0.7325 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.068e-05/2.023, allocations: 11.95 kB / 1.051 GB, free: 15.71 MB / 0.7325 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.024/2.047, allocations: 9.229 MB / 1.06 GB, free: 6.371 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.2e-05/2.048, allocations: 4.594 kB / 1.06 GB, free: 6.367 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.004796/2.052, allocations: 0.9048 MB / 1.061 GB, free: 5.465 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (simulation): time 8.818e-05/2.052, allocations: 16 kB / 1.061 GB, free: 5.449 MB / 0.7325 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0006002/2.053, allocations: 83.88 kB / 1.061 GB, free: 5.367 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.003664/2.057, allocations: 5.943 MB / 1.067 GB, free: 15.19 MB / 0.7481 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.061e-05/2.057, allocations: 7.938 kB / 1.067 GB, free: 15.18 MB / 0.7481 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01451/2.071, allocations: 4.746 MB / 1.071 GB, free: 10.27 MB / 0.7481 GB Notification: Performance of postOpt removeConstants (simulation): time 0.003223/2.075, allocations: 0.9944 MB / 1.072 GB, free: 9.25 MB / 0.7481 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001373/2.076, allocations: 51.98 kB / 1.072 GB, free: 9.199 MB / 0.7481 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.005774/2.082, allocations: 0.7245 MB / 1.073 GB, free: 8.477 MB / 0.7481 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000538/2.082, allocations: 197.7 kB / 1.073 GB, free: 8.281 MB / 0.7481 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0005173/2.083, allocations: 127.9 kB / 1.073 GB, free: 8.156 MB / 0.7481 GB Notification: Performance of sorting global known variables: time 0.005469/2.088, allocations: 2.397 MB / 1.076 GB, free: 5.762 MB / 0.7481 GB Notification: Performance of sort global known variables: time 2.61e-07/2.088, allocations: 0 / 1.076 GB, free: 5.762 MB / 0.7481 GB Notification: Performance of remove unused functions: time 0.01078/2.099, allocations: 2.293 MB / 1.078 GB, free: 3.465 MB / 0.7481 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 20 * Number of states: 0 () * Number of discrete variables: 3 ($whenCondition1,trapezoid.T_start,trapezoid.count) * Number of discrete states: 1 (trapezoid.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (279): * Single equations (assignments): 265 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 2 * When equations: 2 * If-equations: 0 * Equation systems (linear and non-linear blocks): 10 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 0 * Non-linear Jacobian: 10 {1,1,1,1,1,1,1,1,1,1} * Without analytic Jacobian: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.002569/2.102, allocations: 0.708 MB / 1.079 GB, free: 2.805 MB / 0.7481 GB Notification: Performance of simCode: created initialization part: time 0.02236/2.124, allocations: 7.463 MB / 1.086 GB, free: 11.29 MB / 0.7637 GB Notification: Performance of simCode: created event and clocks part: time 1.756e-05/2.124, allocations: 4.438 kB / 1.086 GB, free: 11.29 MB / 0.7637 GB Notification: Performance of simCode: created simulation system equations: time 0.006849/2.131, allocations: 2.342 MB / 1.088 GB, free: 8.941 MB / 0.7637 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.01353/2.145, allocations: 2.084 MB / 1.09 GB, free: 6.883 MB / 0.7637 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.3987/2.543, allocations: 9.709 MB / 1.1 GB, free: 339.1 MB / 0.7637 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002957/2.546, allocations: 2.381 MB / 1.102 GB, free: 338.3 MB / 0.7637 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.00268/2.549, allocations: 419.5 kB / 1.102 GB, free: 338.3 MB / 0.7637 GB Notification: Performance of SimCode: time 8.41e-07/2.549, allocations: 0 / 1.102 GB, free: 338.3 MB / 0.7637 GB Notification: Performance of Templates: time 0.248/2.797, allocations: 270.4 MB / 1.366 GB, free: 98.53 MB / 0.7637 GB make -j1 -f IBPSA_latest_IBPSA.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU.makefile make -j1 -f IBPSA_latest_IBPSA.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTU.makefile clang++ NOTFOUND -Winvalid-pch -O0 -g -DNDEBUG -fPIC -std=c++11 -DBOOST_ALL_DYN_LINK -DUSE_DGESV -DUSE_LOGGER -DOMC_BUILD -DUSE_THREAD -DSUNDIALS_MAJOR_VERSION=5 -DSUNDIALS_MINOR_VERSION=4 -DPMC_USE_SUNDIALS -I"." -I"/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/build/bin/../include/omc/cpp/" -I. "-I/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/Resources/C-Sources" -I"." -I"." -I"/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/build/include/omc/c/sundials" "-I/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/Resources/C-Sources" -DMEASURETIME_PROFILEBLOCKS -DUSE_LOGGER -c -o OMCppIBPSA_latest_IBPSA.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTUCalcHelperMain.o OMCppIBPSA_latest_IBPSA.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTUCalcHelperMain.cpp clang: error: no such file or directory: 'NOTFOUND' make: *** [: OMCppIBPSA_latest_IBPSA.Fluid.HeatExchangers.Validation.DryCoilEffectivenessNTUCalcHelperMain.o] Error 1