Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised.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 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo", uses=false) Using package Buildings with version 8.1.4 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo) Using package Modelica with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+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(Buildings.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised") translateModel(Buildings.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001072/0.001072, allocations: 97.78 kB / 16.02 MB, free: 76 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001707/0.001707, allocations: 187.3 kB / 16.92 MB, free: 6.75 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.827/1.827, allocations: 205.4 MB / 223.1 MB, free: 5.562 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.819/1.819, allocations: 292.7 MB / 0.5509 GB, free: 14.46 MB / 462.1 MB Notification: Modelica requested package Complex of version 3.2.3. Complex 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Modelica requested package ModelicaServices of version 3.2.3. ModelicaServices 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.0005857/0.0005858, allocations: 18.16 kB / 0.675 GB, free: 25.92 MB / 0.5294 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.329/0.3296, allocations: 116.3 MB / 0.7885 GB, free: 11.56 MB / 0.6075 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised): time 0.9086/1.238, allocations: 157.3 MB / 0.9422 GB, free: 1.219 MB / 0.7169 GB Notification: Performance of NFInst.instExpressions: time 0.003067/1.241, allocations: 1.726 MB / 0.9438 GB, free: 1.055 MB / 0.7169 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0002681/1.242, allocations: 15.12 kB / 0.9439 GB, free: 1.047 MB / 0.7169 GB Notification: Performance of NFTyping.typeComponents: time 0.0006818/1.242, allocations: 137.9 kB / 0.944 GB, free: 1 MB / 0.7169 GB Notification: Performance of NFTyping.typeBindings: time 0.001741/1.244, allocations: 0.4982 MB / 0.9445 GB, free: 0.8945 MB / 0.7169 GB Notification: Performance of NFTyping.typeClassSections: time 0.001232/1.245, allocations: 344.4 kB / 0.9448 GB, free: 0.8633 MB / 0.7169 GB Notification: Performance of NFFlatten.flatten: time 0.005574/1.251, allocations: 3.504 MB / 0.9482 GB, free: 436 kB / 0.7169 GB Notification: Performance of NFFlatten.resolveConnections: time 0.003506/1.254, allocations: 2.217 MB / 0.9504 GB, free: 48 kB / 0.7169 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002432/1.257, allocations: 0.9037 MB / 0.9513 GB, free: 0 / 0.7169 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001254/1.258, allocations: 0.723 MB / 0.952 GB, free: 15.99 MB / 0.7325 GB Notification: Performance of NFPackage.collectConstants: time 9.318e-05/1.258, allocations: 33.41 kB / 0.952 GB, free: 15.99 MB / 0.7325 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001967/1.26, allocations: 0.8021 MB / 0.9528 GB, free: 15.93 MB / 0.7325 GB Notification: Performance of NFScalarize.scalarize: time 0.000432/1.261, allocations: 278.7 kB / 0.9531 GB, free: 15.91 MB / 0.7325 GB Notification: Performance of NFVerifyModel.verify: time 0.0008547/1.262, allocations: 0.5317 MB / 0.9536 GB, free: 15.87 MB / 0.7325 GB Notification: Performance of NFConvertDAE.convert: time 0.001379/1.263, allocations: 1.024 MB / 0.9546 GB, free: 15.77 MB / 0.7325 GB Notification: Performance of FrontEnd - DAE generated: time 5.991e-06/1.263, allocations: 1 kB / 0.9546 GB, free: 15.77 MB / 0.7325 GB Notification: Performance of FrontEnd: time 2.925e-06/1.263, allocations: 0 / 0.9546 GB, free: 15.77 MB / 0.7325 GB Notification: Performance of Transformations before backend: time 1.289e-05/1.263, allocations: 0 / 0.9546 GB, free: 15.77 MB / 0.7325 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 126 * Number of variables: 126 Notification: Performance of Generate backend data structure: time 0.002373/1.265, allocations: 1.291 MB / 0.9558 GB, free: 14.96 MB / 0.7325 GB Notification: Performance of prepare preOptimizeDAE: time 5.329e-05/1.265, allocations: 16.08 kB / 0.9559 GB, free: 14.96 MB / 0.7325 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0007936/1.266, allocations: 183.2 kB / 0.956 GB, free: 14.9 MB / 0.7325 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001322/1.268, allocations: 0.8107 MB / 0.9568 GB, free: 14.52 MB / 0.7325 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 5.81e-05/1.268, allocations: 44.41 kB / 0.9569 GB, free: 14.52 MB / 0.7325 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001098/1.268, allocations: 56.59 kB / 0.9569 GB, free: 14.52 MB / 0.7325 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001442/1.269, allocations: 0.832 MB / 0.9577 GB, free: 14.27 MB / 0.7325 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.659e-05/1.269, allocations: 1.031 kB / 0.9577 GB, free: 14.27 MB / 0.7325 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 6.041e-05/1.269, allocations: 24.94 kB / 0.9578 GB, free: 14.27 MB / 0.7325 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.169e-05/1.269, allocations: 13.31 kB / 0.9578 GB, free: 14.27 MB / 0.7325 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001088/1.27, allocations: 0.5764 MB / 0.9583 GB, free: 14.24 MB / 0.7325 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 0.005366/1.276, allocations: 4.255 MB / 0.9625 GB, free: 11.34 MB / 0.7325 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0009069/1.277, allocations: 459.6 kB / 0.9629 GB, free: 11.3 MB / 0.7325 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0005962/1.277, allocations: 356 kB / 0.9633 GB, free: 11.28 MB / 0.7325 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0003556/1.278, allocations: 190 kB / 0.9634 GB, free: 11.09 MB / 0.7325 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0006642/1.278, allocations: 328.4 kB / 0.9638 GB, free: 11.02 MB / 0.7325 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.0003348/1.279, allocations: 33.53 kB / 0.9638 GB, free: 11 MB / 0.7325 GB Notification: Performance of pre-optimization done (n=33): time 2.455e-06/1.279, allocations: 0 / 0.9638 GB, free: 11 MB / 0.7325 GB Notification: Performance of matching and sorting (n=33): time 0.005338/1.284, allocations: 1.708 MB / 0.9655 GB, free: 10.33 MB / 0.7325 GB Notification: Performance of inlineWhenForInitialization (initialization): time 7.298e-05/1.284, allocations: 82.61 kB / 0.9655 GB, free: 10.23 MB / 0.7325 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001679/1.286, allocations: 1.147 MB / 0.9667 GB, free: 9.875 MB / 0.7325 GB Notification: Performance of collectPreVariables (initialization): time 5.526e-05/1.286, allocations: 34.2 kB / 0.9667 GB, free: 9.844 MB / 0.7325 GB Notification: Performance of collectInitialEqns (initialization): time 0.0004595/1.286, allocations: 491.7 kB / 0.9672 GB, free: 9.637 MB / 0.7325 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001084/1.286, allocations: 120 kB / 0.9673 GB, free: 9.555 MB / 0.7325 GB Notification: Performance of simplifyInitialFunctions (initialization): time 7.602e-05/1.287, allocations: 43.5 kB / 0.9673 GB, free: 9.531 MB / 0.7325 GB Notification: Performance of setup shared object (initialization): time 0.0001548/1.287, allocations: 330.3 kB / 0.9676 GB, free: 9.219 MB / 0.7325 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.000466/1.287, allocations: 234.1 kB / 0.9679 GB, free: 9.168 MB / 0.7325 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0007278/1.288, allocations: 0.5459 MB / 0.9684 GB, free: 8.742 MB / 0.7325 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001038/1.289, allocations: 0.6957 MB / 0.9691 GB, free: 8.383 MB / 0.7325 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.431e-06/1.289, allocations: 2.844 kB / 0.9691 GB, free: 8.383 MB / 0.7325 GB Notification: Performance of matching and sorting (n=56) (initialization): time 0.002158/1.291, allocations: 1.112 MB / 0.9702 GB, free: 7.98 MB / 0.7325 GB Notification: Performance of prepare postOptimizeDAE: time 0.0002164/1.291, allocations: 269.6 kB / 0.9704 GB, free: 7.664 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.309e-05/1.291, allocations: 10.5 kB / 0.9704 GB, free: 7.66 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001263/1.293, allocations: 369.7 kB / 0.9708 GB, free: 7.547 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003758/1.293, allocations: 102.1 kB / 0.9709 GB, free: 7.52 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001086/1.294, allocations: 1.042 MB / 0.9719 GB, free: 6.875 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001057/1.295, allocations: 81.73 kB / 0.972 GB, free: 6.848 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.683e-05/1.295, allocations: 30.36 kB / 0.972 GB, free: 6.84 MB / 0.7325 GB Notification: Performance of prepare postOptimizeDAE: time 9.378e-06/1.295, allocations: 3.375 kB / 0.972 GB, free: 6.84 MB / 0.7325 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.001436/1.297, allocations: 0.7931 MB / 0.9728 GB, free: 6.598 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.284e-06/1.297, allocations: 3.312 kB / 0.9728 GB, free: 6.598 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.000557/1.297, allocations: 246.5 kB / 0.973 GB, free: 6.531 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003639/1.298, allocations: 93.03 kB / 0.9731 GB, free: 6.508 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003772/1.302, allocations: 3.024 MB / 0.9761 GB, free: 4.738 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001031/1.303, allocations: 76.73 kB / 0.9761 GB, free: 4.711 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.002e-05/1.303, allocations: 22.12 kB / 0.9762 GB, free: 4.711 MB / 0.7325 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 24 * Number of states: 0 () * Number of discrete variables: 5 (pulse_m_flow.count,$PRE.pulse_m_flow.count,pulse_m_flow.T_start,$PRE.pulse_m_flow.T_start,$whenCondition1) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (35): * Single equations (assignments): 33 * Array equations: 0 * Algorithm blocks: 1 * 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 {(1,20)} Notification: Performance of prepare postOptimizeDAE: time 0.000781/1.303, allocations: 475.5 kB / 0.9766 GB, free: 4.438 MB / 0.7325 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001418/1.304, allocations: 100.5 kB / 0.9767 GB, free: 4.387 MB / 0.7325 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001402/1.305, allocations: 0.7918 MB / 0.9775 GB, free: 4.125 MB / 0.7325 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.763e-06/1.305, allocations: 2.906 kB / 0.9775 GB, free: 4.125 MB / 0.7325 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.264e-06/1.305, allocations: 1.969 kB / 0.9775 GB, free: 4.125 MB / 0.7325 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 8.356e-06/1.305, allocations: 6.922 kB / 0.9775 GB, free: 4.121 MB / 0.7325 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002698/1.308, allocations: 1.745 MB / 0.9792 GB, free: 3.285 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.288e-06/1.308, allocations: 0 / 0.9792 GB, free: 3.285 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002601/1.308, allocations: 67.72 kB / 0.9793 GB, free: 3.262 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0005019/1.308, allocations: 245.8 kB / 0.9795 GB, free: 3.188 MB / 0.7325 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.524e-05/1.309, allocations: 6.406 kB / 0.9795 GB, free: 3.188 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0009218/1.309, allocations: 1.017 MB / 0.9805 GB, free: 2.551 MB / 0.7325 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.334e-06/1.309, allocations: 0 / 0.9805 GB, free: 2.551 MB / 0.7325 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001318/1.311, allocations: 0.9033 MB / 0.9814 GB, free: 2.129 MB / 0.7325 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0003868/1.311, allocations: 231.6 kB / 0.9816 GB, free: 1.957 MB / 0.7325 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001144/1.311, allocations: 6.375 kB / 0.9816 GB, free: 1.957 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.000618/1.312, allocations: 53.91 kB / 0.9816 GB, free: 1.938 MB / 0.7325 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 9.62e-05/1.312, allocations: 34.88 kB / 0.9817 GB, free: 1.926 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.299e-05/1.312, allocations: 7.938 kB / 0.9817 GB, free: 1.926 MB / 0.7325 GB Notification: Performance of sorting global known variables: time 0.001217/1.313, allocations: 0.8179 MB / 0.9825 GB, free: 1.656 MB / 0.7325 GB Notification: Performance of sort global known variables: time 1.6e-07/1.313, allocations: 2.938 kB / 0.9825 GB, free: 1.656 MB / 0.7325 GB Notification: Performance of remove unused functions: time 0.001623/1.315, allocations: 469.7 kB / 0.9829 GB, free: 1.621 MB / 0.7325 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 8 * Number of states: 0 () * Number of discrete variables: 3 ($whenCondition1,pulse_m_flow.T_start,pulse_m_flow.count) * Number of discrete states: 1 (pulse_m_flow.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (13): * Single equations (assignments): 10 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * 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 {(1,20)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0005142/1.315, allocations: 182 kB / 0.9831 GB, free: 1.5 MB / 0.7325 GB Notification: Performance of simCode: created initialization part: time 0.002263/1.318, allocations: 1.152 MB / 0.9842 GB, free: 1.02 MB / 0.7325 GB Notification: Performance of simCode: created event and clocks part: time 3.146e-06/1.318, allocations: 3.156 kB / 0.9842 GB, free: 1.02 MB / 0.7325 GB Notification: Performance of simCode: created simulation system equations: time 0.0005454/1.318, allocations: 248 kB / 0.9845 GB, free: 0.9609 MB / 0.7325 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003502/1.322, allocations: 0.632 MB / 0.9851 GB, free: 0.7227 MB / 0.7325 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003105/1.325, allocations: 2.134 MB / 0.9872 GB, free: 15.5 MB / 0.7481 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0008349/1.326, allocations: 1.184 MB / 0.9883 GB, free: 14.59 MB / 0.7481 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.000144/1.326, allocations: 64.72 kB / 0.9884 GB, free: 14.58 MB / 0.7481 GB Notification: Performance of SimCode: time 2.7e-07/1.326, allocations: 0 / 0.9884 GB, free: 14.58 MB / 0.7481 GB Notification: Performance of Templates: time 0.03359/1.36, allocations: 21.32 MB / 1.009 GB, free: 3.176 MB / 0.7481 GB make -j1 -f Buildings_8_Buildings.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised.makefile make -j1 -f Buildings_8_Buildings.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimised.makefile clang++ -std=c++14 NOTFOUND -Winvalid-pch -O2 -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"." -I"." -I"/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/build/include/omc/sundials" -DMEASURETIME_PROFILEBLOCKS -DUSE_LOGGER -c -o OMCppBuildings_8_Buildings.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimisedCalcHelperMain.o OMCppBuildings_8_Buildings.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimisedCalcHelperMain.cpp clang: error: no such file or directory: 'NOTFOUND' make: *** [: OMCppBuildings_8_Buildings.Fluid.Examples.Performance.PressureDrop.ParallelFlowOptimisedCalcHelperMain.o] Error 1