Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr ModelicaTest_3.2.3_ModelicaTest.Fluid.TestComponents.Fittings.TestSimpleGenericOrifice.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/ModelicaTest 3.2.3+maint.om/package.mo", uses=false) Using package ModelicaTest with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 3.2.3+maint.om/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: "" <> buildModelFMU(ModelicaTest.Fluid.TestComponents.Fittings.TestSimpleGenericOrifice,fileNamePrefix="ModelicaTest_3_2_3_ModelicaTest_Fluid_TestComponents_Fittings_TestSimpleGenericOrifice",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(ModelicaTest.Fluid.TestComponents.Fittings.TestSimpleGenericOrifice,fileNamePrefix="ModelicaTest_3_2_3_ModelicaTest_Fluid_TestComponents_Fittings_TestSimpleGenericOrifice",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 0.0009391/0.0009392, allocations: 87.84 kB / 16.01 MB, free: 92 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.0009834/0.0009834, allocations: 182.7 kB / 16.92 MB, free: 6.676 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.239/1.239, allocations: 205.4 MB / 223.1 MB, free: 5.773 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 3.2.3+maint.om/package.mo): time 0.2855/0.2855, allocations: 43.58 MB / 315 MB, free: 8.691 MB / 254.1 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 0.0004974/0.0004975, allocations: 16 kB / 384.7 MB, free: 7.551 MB / 318.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.09537/0.09588, allocations: 58.87 MB / 443.5 MB, free: 12.58 MB / 382.1 MB Notification: Performance of NFInst.instantiate(ModelicaTest.Fluid.TestComponents.Fittings.TestSimpleGenericOrifice): time 0.1802/0.2761, allocations: 16.98 MB / 460.5 MB, free: 36.12 MB / 382.1 MB Notification: Performance of NFInst.instExpressions: time 0.005352/0.2815, allocations: 4.47 MB / 465 MB, free: 35.91 MB / 382.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.000512/0.282, allocations: 18.62 kB / 465 MB, free: 35.9 MB / 382.1 MB Notification: Performance of NFTyping.typeComponents: time 0.0006/0.2826, allocations: 245.5 kB / 465.3 MB, free: 35.83 MB / 382.1 MB Notification: Performance of NFTyping.typeBindings: time 0.001294/0.2839, allocations: 0.6828 MB / 465.9 MB, free: 35.65 MB / 382.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.00202/0.286, allocations: 0.8629 MB / 466.8 MB, free: 35.56 MB / 382.1 MB Notification: Performance of NFFlatten.flatten: time 0.001249/0.2872, allocations: 1.873 MB / 468.7 MB, free: 35.28 MB / 382.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.0004462/0.2877, allocations: 365.3 kB / 469 MB, free: 35.23 MB / 382.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0005868/0.2883, allocations: 0.5039 MB / 469.5 MB, free: 35.11 MB / 382.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.000411/0.2887, allocations: 456.7 kB / 470 MB, free: 35.01 MB / 382.1 MB Notification: Performance of NFPackage.collectConstants: time 5.789e-05/0.2888, allocations: 26.25 kB / 470 MB, free: 35.01 MB / 382.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.00092/0.2897, allocations: 0.6202 MB / 470.6 MB, free: 34.98 MB / 382.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0001274/0.2898, allocations: 147.3 kB / 470.8 MB, free: 34.95 MB / 382.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0002451/0.2901, allocations: 342.4 kB / 471.1 MB, free: 34.82 MB / 382.1 MB Notification: Performance of NFConvertDAE.convert: time 0.0008759/0.291, allocations: 1.074 MB / 472.2 MB, free: 34.67 MB / 382.1 MB Notification: Performance of FrontEnd - DAE generated: time 3.666e-06/0.291, allocations: 0 / 472.2 MB, free: 34.67 MB / 382.1 MB Notification: Performance of FrontEnd: time 1.423e-06/0.291, allocations: 4 kB / 472.2 MB, free: 34.67 MB / 382.1 MB Notification: Performance of Transformations before backend: time 7.594e-06/0.291, allocations: 0 / 472.2 MB, free: 34.67 MB / 382.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 117 * Number of variables: 117 Notification: Performance of Generate backend data structure: time 0.001065/0.2921, allocations: 0.8744 MB / 473.1 MB, free: 34.04 MB / 382.1 MB Notification: Performance of prepare preOptimizeDAE: time 3.486e-05/0.2921, allocations: 13.19 kB / 473.1 MB, free: 34.04 MB / 382.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 8.151e-05/0.2922, allocations: 86.7 kB / 473.2 MB, free: 34 MB / 382.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0002708/0.2925, allocations: 94.02 kB / 473.2 MB, free: 33.95 MB / 382.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0004667/0.2929, allocations: 482 kB / 473.7 MB, free: 33.68 MB / 382.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.329e-05/0.293, allocations: 39.12 kB / 473.8 MB, free: 33.68 MB / 382.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 5.619e-05/0.293, allocations: 44.16 kB / 473.8 MB, free: 33.68 MB / 382.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.000745/0.2938, allocations: 0.6598 MB / 474.5 MB, free: 33.5 MB / 382.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 1.482e-05/0.2938, allocations: 3.938 kB / 474.5 MB, free: 33.49 MB / 382.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 5.23e-05/0.2939, allocations: 23.28 kB / 474.5 MB, free: 33.49 MB / 382.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 9.408e-06/0.2939, allocations: 12.78 kB / 474.5 MB, free: 33.49 MB / 382.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0006021/0.2945, allocations: 0.5367 MB / 475 MB, free: 33.47 MB / 382.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.002404/0.2969, allocations: 3.094 MB / 478.1 MB, free: 31.51 MB / 382.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.0003119/0.2972, allocations: 229.6 kB / 478.4 MB, free: 31.48 MB / 382.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0001849/0.2974, allocations: 157.8 kB / 478.5 MB, free: 31.47 MB / 382.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.000186/0.2976, allocations: 341 kB / 478.8 MB, free: 31.1 MB / 382.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0003075/0.2979, allocations: 299.6 kB / 479.1 MB, free: 30.96 MB / 382.1 MB Notification: Performance of pre-optimization done (n=28): time 1.403e-06/0.298, allocations: 0 / 479.1 MB, free: 30.96 MB / 382.1 MB Notification: Performance of matching and sorting (n=28): time 0.0007353/0.2987, allocations: 0.5388 MB / 479.7 MB, free: 30.87 MB / 382.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 5.863e-05/0.2988, allocations: 293 kB / 480 MB, free: 30.52 MB / 382.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0004592/0.2992, allocations: 0.5585 MB / 480.5 MB, free: 30.36 MB / 382.1 MB Notification: Performance of collectPreVariables (initialization): time 3.352e-05/0.2993, allocations: 36.86 kB / 480.6 MB, free: 30.32 MB / 382.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0001595/0.2994, allocations: 339.3 kB / 480.9 MB, free: 30.05 MB / 382.1 MB Notification: Performance of collectInitialBindings (initialization): time 5.624e-05/0.2995, allocations: 90.14 kB / 481 MB, free: 29.98 MB / 382.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 5.682e-05/0.2996, allocations: 48.14 kB / 481 MB, free: 29.95 MB / 382.1 MB Notification: Performance of setup shared object (initialization): time 6.296e-05/0.2996, allocations: 364 kB / 481.4 MB, free: 29.61 MB / 382.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002194/0.2999, allocations: 164.9 kB / 481.5 MB, free: 29.56 MB / 382.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0002932/0.3002, allocations: 396.6 kB / 481.9 MB, free: 29.22 MB / 382.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.0004871/0.3006, allocations: 0.5603 MB / 482.5 MB, free: 28.79 MB / 382.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.086e-06/0.3007, allocations: 0 / 482.5 MB, free: 28.79 MB / 382.1 MB Notification: Performance of matching and sorting (n=61) (initialization): time 0.0007647/0.3014, allocations: 0.6411 MB / 483.1 MB, free: 28.5 MB / 382.1 MB Notification: Performance of prepare postOptimizeDAE: time 7.523e-05/0.3015, allocations: 284.5 kB / 483.4 MB, free: 28.16 MB / 382.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.136e-06/0.3015, allocations: 10.66 kB / 483.4 MB, free: 28.16 MB / 382.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 1.524e-05/0.3015, allocations: 6.656 kB / 483.4 MB, free: 28.16 MB / 382.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00124/0.3028, allocations: 194.1 kB / 483.6 MB, free: 28.14 MB / 382.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0002822/0.3031, allocations: 0.6238 MB / 484.2 MB, free: 27.54 MB / 382.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004204/0.3035, allocations: 79.77 kB / 484.3 MB, free: 27.49 MB / 382.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.864e-05/0.3036, allocations: 33.58 kB / 484.3 MB, free: 27.49 MB / 382.1 MB Notification: Performance of prepare postOptimizeDAE: time 5.2e-06/0.3036, allocations: 7.406 kB / 484.3 MB, free: 27.48 MB / 382.1 MB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.0006719/0.3043, allocations: 0.566 MB / 484.9 MB, free: 27.25 MB / 382.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.18e-06/0.3043, allocations: 6.656 kB / 484.9 MB, free: 27.25 MB / 382.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 6.743e-06/0.3043, allocations: 10.53 kB / 484.9 MB, free: 27.24 MB / 382.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000317/0.3046, allocations: 118.6 kB / 485 MB, free: 27.23 MB / 382.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 6.933e-06/0.3046, allocations: 9.875 kB / 485.1 MB, free: 27.23 MB / 382.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0003411/0.305, allocations: 61.42 kB / 485.1 MB, free: 27.2 MB / 382.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.916e-05/0.305, allocations: 34.53 kB / 485.2 MB, free: 27.19 MB / 382.1 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 24 * Number of states: 0 () * Number of discrete variables: 7 (p_table.nextEventScaled,p_table.nextEvent,$PRE.p_table.nextEvent,p_table.last,p_table.b,p_table.a,$whenCondition1) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (56): * Single equations (assignments): 54 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 1 system {1} * Without analytic Jacobian (size): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0002024/0.3052, allocations: 300.9 kB / 485.4 MB, free: 26.93 MB / 382.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 6.915e-05/0.3053, allocations: 67.91 kB / 485.5 MB, free: 26.89 MB / 382.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001047/0.3064, allocations: 0.78 MB / 486.3 MB, free: 26.58 MB / 382.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.246e-06/0.3064, allocations: 9.312 kB / 486.3 MB, free: 26.58 MB / 382.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.709e-06/0.3064, allocations: 0 / 486.3 MB, free: 26.58 MB / 382.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.049e-06/0.3064, allocations: 3.938 kB / 486.3 MB, free: 26.57 MB / 382.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0004168/0.3068, allocations: 0.5436 MB / 486.8 MB, free: 26.25 MB / 382.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.055e-06/0.3068, allocations: 3.938 kB / 486.9 MB, free: 26.25 MB / 382.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.000555/0.3074, allocations: 114.8 kB / 487 MB, free: 26.24 MB / 382.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 2.826e-06/0.3074, allocations: 3.375 kB / 487 MB, free: 26.24 MB / 382.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.545e-05/0.3075, allocations: 25.19 kB / 487 MB, free: 26.23 MB / 382.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0001782/0.3076, allocations: 0.5879 MB / 487.6 MB, free: 25.64 MB / 382.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.102e-06/0.3076, allocations: 0 / 487.6 MB, free: 25.64 MB / 382.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0005806/0.3082, allocations: 0.5595 MB / 488.1 MB, free: 25.36 MB / 382.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0001727/0.3084, allocations: 212.1 kB / 488.3 MB, free: 25.2 MB / 382.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 8.253e-05/0.3085, allocations: 15.31 kB / 488.4 MB, free: 25.19 MB / 382.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.000283/0.3088, allocations: 23.17 kB / 488.4 MB, free: 25.18 MB / 382.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 5.292e-05/0.3089, allocations: 26.05 kB / 488.4 MB, free: 25.18 MB / 382.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.881e-05/0.3089, allocations: 17.47 kB / 488.4 MB, free: 25.18 MB / 382.1 MB Notification: Performance of sorting global known variables: time 0.0003431/0.3092, allocations: 420.3 kB / 488.8 MB, free: 24.98 MB / 382.1 MB Notification: Performance of sort global known variables: time 1e-07/0.3092, allocations: 0 / 488.8 MB, free: 24.98 MB / 382.1 MB Notification: Performance of remove unused functions: time 0.0008824/0.3101, allocations: 424.1 kB / 489.2 MB, free: 24.91 MB / 382.1 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 6 ($whenCondition1,p_table.a,p_table.b,p_table.last,p_table.nextEvent,p_table.nextEventScaled) * Number of discrete states: 6 (p_table.nextEvent,p_table.last,p_table.nextEventScaled,p_table.b,p_table.a,$whenCondition1) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (39): * Single equations (assignments): 33 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 4 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 1 system {1} * Without analytic Jacobian (size): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.00121/0.3113, allocations: 1.332 MB / 490.6 MB, free: 24.05 MB / 382.1 MB Notification: Performance of simCode: created initialization part: time 0.002007/0.3134, allocations: 0.9768 MB / 491.6 MB, free: 23.64 MB / 382.1 MB Notification: Performance of simCode: created event and clocks part: time 2.896e-06/0.3134, allocations: 0 / 491.6 MB, free: 23.64 MB / 382.1 MB Notification: Performance of simCode: created simulation system equations: time 0.000845/0.3142, allocations: 388.5 kB / 491.9 MB, free: 23.49 MB / 382.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001179/0.3154, allocations: 280.3 kB / 492.2 MB, free: 23.41 MB / 382.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0056/0.321, allocations: 5.524 MB / 497.7 MB, free: 20.11 MB / 382.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0002588/0.3213, allocations: 0.892 MB / 498.6 MB, free: 19.39 MB / 382.1 MB Notification: Performance of simCode: alias equations: time 0.0006213/0.3219, allocations: 220.8 kB / 498.8 MB, free: 19.31 MB / 382.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002588/0.3222, allocations: 232 kB / 499.1 MB, free: 19.16 MB / 382.1 MB Notification: Performance of SimCode: time 2.4e-07/0.3222, allocations: 0 / 499.1 MB, free: 19.16 MB / 382.1 MB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.03388/0.3561, allocations: 20.28 MB / 0.5072 GB, free: 12.71 MB / 382.1 MB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0001585/0.3563, allocations: 298.8 kB / 0.5075 GB, free: 12.34 MB / 382.1 MB Notification: Performance of buildModelFMU: Generate platform static: time 2.16/2.516, allocations: 4 kB / 0.5075 GB, free: 12.33 MB / 382.1 MB (rm -f ModelicaTest_3.2.3_ModelicaTest.Fluid.TestComponents.Fittings.TestSimpleGenericOrifice.pipe ; mkfifo ModelicaTest_3.2.3_ModelicaTest.Fluid.TestComponents.Fittings.TestSimpleGenericOrifice.pipe ; head -c 1048576 < ModelicaTest_3.2.3_ModelicaTest.Fluid.TestComponents.Fittings.TestSimpleGenericOrifice.pipe >> ../files/ModelicaTest_3.2.3_ModelicaTest.Fluid.TestComponents.Fittings.TestSimpleGenericOrifice.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=ModelicaTest_3.2.3_ModelicaTest.Fluid.TestComponents.Fittings.TestSimpleGenericOrifice_res.mat --tempDir=temp_ModelicaTest_3_2_3_ModelicaTest_Fluid_TestComponents_Fittings_TestSimpleGenericOrifice_fmu --startTime=0 --stopTime=10 --timeout=50 --tolerance=1e-06 ModelicaTest_3_2_3_ModelicaTest_Fluid_TestComponents_Fittings_TestSimpleGenericOrifice.fmu > ModelicaTest_3.2.3_ModelicaTest.Fluid.TestComponents.Fittings.TestSimpleGenericOrifice.pipe 2>&1)