Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ModelicaTest_3.2.3_ModelicaTest.MultiBody.Joints.RevoluteInitialization.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo): time 0.001844/0.001844, allocations: 109 kB / 20.48 MB, free: 1.492 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.1.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.1.0+maint.om/package.mo): time 0.002403/0.002403, allocations: 218.2 kB / 23.79 MB, free: 4.707 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.631/1.631, allocations: 207.6 MB / 234.5 MB, free: 9.996 MB / 190.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 3.2.3+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 3.2.3+maint.om/package.mo): time 0.2544/0.2544, allocations: 44.25 MB / 331.1 MB, free: 9.531 MB / 270.1 MB " [Timeout remaining time 179] 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 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.1.0+maint.om/package.mo) Using package ModelicaServices with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo) Running command: "" <> buildModelFMU(ModelicaTest.MultiBody.Joints.RevoluteInitialization,fileNamePrefix="ModelicaTest_3_2_3_ModelicaTest_MultiBody_Joints_RevoluteInitialization",fmuType="cs",version="2.0",platforms={"static"}) "" <> buildModelFMU(ModelicaTest.MultiBody.Joints.RevoluteInitialization,fileNamePrefix="ModelicaTest_3_2_3_ModelicaTest_MultiBody_Joints_RevoluteInitialization",fmuType="cs",version="2.0",platforms={"static"}) [Timeout 660] "Notification: Modelica requested package Complex of version 3.2.3. Complex 4.1.0 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 4.1.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.002644/0.002644, allocations: 78.55 kB / 468.3 MB, free: 4.508 MB / 334.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1325/0.1352, allocations: 61.02 MB / 0.5169 GB, free: 7.344 MB / 398.1 MB Notification: Performance of NFInst.instantiate(ModelicaTest.MultiBody.Joints.RevoluteInitialization): time 0.01483/0.15, allocations: 10.37 MB / 0.527 GB, free: 12.92 MB / 414.1 MB Notification: Performance of NFInst.instExpressions: time 0.01036/0.1604, allocations: 3.834 MB / 0.5308 GB, free: 9.07 MB / 414.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.002211/0.1626, allocations: 67.69 kB / 0.5309 GB, free: 9.004 MB / 414.1 MB Notification: Performance of NFTyping.typeComponents: time 0.004859/0.1674, allocations: 1.978 MB / 0.5328 GB, free: 7.02 MB / 414.1 MB Notification: Performance of NFTyping.typeBindings: time 0.00495/0.1724, allocations: 1.712 MB / 0.5345 GB, free: 5.301 MB / 414.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.001892/0.1743, allocations: 0.6043 MB / 0.535 GB, free: 4.695 MB / 414.1 MB Notification: Performance of NFFlatten.flatten: time 0.005918/0.1802, allocations: 3.353 MB / 0.5383 GB, free: 1.328 MB / 414.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.2887/0.4689, allocations: 2.126 MB / 0.5404 GB, free: 10.72 MB / 414.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.003784/0.4727, allocations: 1.273 MB / 0.5416 GB, free: 10.65 MB / 414.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.004993/0.4777, allocations: 1.823 MB / 0.5434 GB, free: 10.45 MB / 414.1 MB Notification: Performance of NFPackage.collectConstants: time 0.001949/0.4796, allocations: 254.1 kB / 0.5437 GB, free: 10.45 MB / 414.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.004516/0.4842, allocations: 1.062 MB / 0.5447 GB, free: 10.45 MB / 414.1 MB Notification: Performance of NFScalarize.scalarize: time 0.003786/0.4879, allocations: 1.622 MB / 0.5463 GB, free: 10.25 MB / 414.1 MB Notification: Performance of NFVerifyModel.verify: time 0.005987/0.4939, allocations: 1.837 MB / 0.5481 GB, free: 9.582 MB / 414.1 MB Notification: Performance of NFConvertDAE.convert: time 0.01741/0.5113, allocations: 5.874 MB / 0.5538 GB, free: 8.637 MB / 414.1 MB Notification: Performance of FrontEnd - DAE generated: time 1.245e-05/0.5114, allocations: 0 / 0.5538 GB, free: 8.637 MB / 414.1 MB Notification: Performance of FrontEnd: time 5.45e-06/0.5114, allocations: 0 / 0.5538 GB, free: 8.637 MB / 414.1 MB Notification: Performance of Transformations before backend: time 0.0005083/0.5119, allocations: 1.25 kB / 0.5538 GB, free: 8.637 MB / 414.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 1275 * Number of variables: 1275 Notification: Performance of Generate backend data structure: time 0.02199/0.5339, allocations: 4.084 MB / 0.5578 GB, free: 6.43 MB / 414.1 MB Notification: Performance of prepare preOptimizeDAE: time 7.067e-05/0.5339, allocations: 10.5 kB / 0.5578 GB, free: 6.43 MB / 414.1 MB Notification: Performance of preOpt introduceOutputRealDerivatives (simulation): time 0.0003104/0.5342, allocations: 88.09 kB / 0.5579 GB, free: 6.418 MB / 414.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.003916/0.5382, allocations: 0.607 MB / 0.5585 GB, free: 6.145 MB / 414.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.008936/0.5471, allocations: 1.803 MB / 0.5602 GB, free: 5.828 MB / 414.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.007713/0.5548, allocations: 2.368 MB / 0.5626 GB, free: 4.816 MB / 414.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003913/0.5552, allocations: 193.2 kB / 0.5627 GB, free: 4.754 MB / 414.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.002214/0.5574, allocations: 258.8 kB / 0.563 GB, free: 4.695 MB / 414.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.02482/0.5822, allocations: 8.431 MB / 0.5712 GB, free: 432 kB / 414.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 0.000415/0.5826, allocations: 48.72 kB / 0.5713 GB, free: 420 kB / 414.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.002209/0.5849, allocations: 126.4 kB / 0.5714 GB, free: 368 kB / 414.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.004712/0.5896, allocations: 1.696 MB / 0.5731 GB, free: 15.72 MB / 430.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.02162/0.6112, allocations: 7.101 MB / 0.58 GB, free: 12.61 MB / 430.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.06927/0.6805, allocations: 33.99 MB / 0.6132 GB, free: 12.57 MB / 462.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.00905/0.6895, allocations: 2.73 MB / 0.6158 GB, free: 9.805 MB / 462.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.002856/0.6924, allocations: 1.365 MB / 0.6172 GB, free: 8.43 MB / 462.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.01132/0.7037, allocations: 3.674 MB / 0.6208 GB, free: 4.75 MB / 462.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 8.291e-05/0.7038, allocations: 50.5 kB / 0.6208 GB, free: 4.695 MB / 462.1 MB Notification: Performance of pre-optimization done (n=121): time 6.883e-06/0.7038, allocations: 0 / 0.6208 GB, free: 4.695 MB / 462.1 MB Notification: Performance of matching and sorting (n=129): time 0.04096/0.7447, allocations: 11.55 MB / 0.6321 GB, free: 9.121 MB / 478.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001788/0.7449, allocations: 170.9 kB / 0.6323 GB, free: 8.918 MB / 478.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.01081/0.7557, allocations: 3.759 MB / 0.6359 GB, free: 5.168 MB / 478.1 MB Notification: Performance of collectPreVariables (initialization): time 0.0004721/0.7562, allocations: 41.7 kB / 0.636 GB, free: 5.121 MB / 478.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.003902/0.7601, allocations: 2.875 MB / 0.6388 GB, free: 2.262 MB / 478.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.001283/0.7614, allocations: 0.5411 MB / 0.6393 GB, free: 1.727 MB / 478.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.004432/0.7658, allocations: 1.076 MB / 0.6403 GB, free: 0.6406 MB / 478.1 MB Notification: Performance of setup shared object (initialization): time 0.0001699/0.766, allocations: 309.1 kB / 0.6406 GB, free: 344 kB / 478.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.004294/0.7703, allocations: 1.693 MB / 0.6423 GB, free: 14.64 MB / 494.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.008808/0.7791, allocations: 5.117 MB / 0.6473 GB, free: 7.852 MB / 494.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.01204/0.7911, allocations: 7.402 MB / 0.6545 GB, free: 15.14 MB / 0.4981 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 0.000211/0.7913, allocations: 36 kB / 0.6546 GB, free: 15.11 MB / 0.4981 GB Notification: Performance of matching and sorting (n=692) (initialization): time 0.01814/0.8095, allocations: 6.715 MB / 0.6611 GB, free: 8.387 MB / 0.4981 GB Notification: Performance of prepare postOptimizeDAE: time 0.0002053/0.8097, allocations: 63.69 kB / 0.6612 GB, free: 8.328 MB / 0.4981 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0003158/0.81, allocations: 120 kB / 0.6613 GB, free: 8.211 MB / 0.4981 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0009965/0.811, allocations: 316.7 kB / 0.6616 GB, free: 7.898 MB / 0.4981 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005234/0.8162, allocations: 1.24 MB / 0.6628 GB, free: 6.656 MB / 0.4981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.00379/0.82, allocations: 2.392 MB / 0.6651 GB, free: 4.156 MB / 0.4981 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005697/0.8257, allocations: 283.6 kB / 0.6654 GB, free: 3.879 MB / 0.4981 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001621/0.8273, allocations: 336.5 kB / 0.6657 GB, free: 3.551 MB / 0.4981 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 555 * Number of states: 0 () * Number of discrete variables: 33 (spring.color[3],spring.color[2],spring.color[1],spring.massColor[3],spring.massColor[2],spring.massColor[1],fixed.color[3],fixed.color[2],fixed.color[1],body.color[3],body.color[2],body.color[1],body.body.sphereColor[3],body.body.sphereColor[2],body.body.sphereColor[1],body.frameTranslation.color[3],body.frameTranslation.color[2],body.frameTranslation.color[1],rev.cylinderColor[3],rev.cylinderColor[2],rev.cylinderColor[1],world.gravityArrowColor[3],world.gravityArrowColor[2],world.gravityArrowColor[1],world.axisColor_x[3],world.axisColor_x[2],world.axisColor_x[1],world.groundColor[3],world.groundColor[2],world.groundColor[1],world.gravitySphereColor[3],world.gravitySphereColor[2],world.gravitySphereColor[1]) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (664): * Single equations (assignments): 660 * Array equations: 3 * 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): 1 system {(1,4,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.006132/0.8335, allocations: 1.792 MB / 0.6675 GB, free: 1.75 MB / 0.4981 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.00117/0.8346, allocations: 329.8 kB / 0.6678 GB, free: 1.426 MB / 0.4981 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.007349/0.842, allocations: 2.363 MB / 0.6701 GB, free: 15.05 MB / 0.5137 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.845e-05/0.842, allocations: 16 kB / 0.6701 GB, free: 15.04 MB / 0.5137 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.911e-05/0.8421, allocations: 1 kB / 0.6701 GB, free: 15.04 MB / 0.5137 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.345e-05/0.8421, allocations: 7.984 kB / 0.6701 GB, free: 15.03 MB / 0.5137 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01981/0.8619, allocations: 5.885 MB / 0.6759 GB, free: 9.117 MB / 0.5137 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.995e-05/0.8619, allocations: 4 kB / 0.6759 GB, free: 9.113 MB / 0.5137 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001131/0.8631, allocations: 175.7 kB / 0.676 GB, free: 8.941 MB / 0.5137 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.002791/0.8659, allocations: 0.7147 MB / 0.6767 GB, free: 8.223 MB / 0.5137 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.000366/0.8662, allocations: 20 kB / 0.6768 GB, free: 8.203 MB / 0.5137 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.008295/0.8745, allocations: 4.718 MB / 0.6814 GB, free: 3.367 MB / 0.5137 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 8.506e-06/0.8745, allocations: 7.969 kB / 0.6814 GB, free: 3.359 MB / 0.5137 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.009846/0.8844, allocations: 4.33 MB / 0.6856 GB, free: 15 MB / 0.5294 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002149/0.8865, allocations: 485.5 kB / 0.6861 GB, free: 14.52 MB / 0.5294 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001174/0.8877, allocations: 16 kB / 0.6861 GB, free: 14.51 MB / 0.5294 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002193/0.8899, allocations: 71.84 kB / 0.6862 GB, free: 14.44 MB / 0.5294 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0004916/0.8904, allocations: 76.39 kB / 0.6862 GB, free: 14.37 MB / 0.5294 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002519/0.8906, allocations: 42.66 kB / 0.6863 GB, free: 14.33 MB / 0.5294 GB Notification: Performance of sorting global known variables: time 0.006339/0.897, allocations: 2.347 MB / 0.6886 GB, free: 12 MB / 0.5294 GB Notification: Performance of sort global known variables: time 3.91e-07/0.897, allocations: 0 / 0.6886 GB, free: 12 MB / 0.5294 GB Notification: Performance of remove unused functions: time 0.006874/0.9038, allocations: 0.8163 MB / 0.6894 GB, free: 11.18 MB / 0.5294 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 6 * Number of states: 2 (rev.phi,rev.w) * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (96): * Single equations (assignments): 92 * Array equations: 3 * 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): 1 system {(1,11,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.01082/0.9147, allocations: 4.968 MB / 0.6942 GB, free: 6.18 MB / 0.5294 GB Notification: Performance of simCode: created initialization part: time 0.009361/0.924, allocations: 3.874 MB / 0.698 GB, free: 2.32 MB / 0.5294 GB Notification: Performance of simCode: created event and clocks part: time 9.738e-06/0.924, allocations: 3.938 kB / 0.698 GB, free: 2.316 MB / 0.5294 GB Notification: Performance of simCode: created simulation system equations: time 0.002473/0.9265, allocations: 1.033 MB / 0.699 GB, free: 1.273 MB / 0.5294 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.005063/0.9316, allocations: 389.4 kB / 0.6994 GB, free: 0.9062 MB / 0.5294 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.1113/1.043, allocations: 37.87 MB / 0.7364 GB, free: 5.863 MB / 0.5762 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.007943/1.051, allocations: 2.791 MB / 0.7391 GB, free: 3.055 MB / 0.5762 GB Notification: Performance of simCode: alias equations: time 0.006245/1.057, allocations: 1.656 MB / 0.7407 GB, free: 1.395 MB / 0.5762 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.004831/1.062, allocations: 1.53 MB / 0.7422 GB, free: 15.86 MB / 0.5919 GB Notification: Performance of SimCode: time 1.984e-06/1.062, allocations: 0 / 0.7422 GB, free: 15.86 MB / 0.5919 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.4552/1.517, allocations: 62.62 MB / 0.8033 GB, free: 211.5 MB / 0.6075 GB Notification: Performance of buildModelFMU: Generate platform static: time 26.28/27.8, allocations: 10.33 kB / 0.8034 GB, free: 211.5 MB / 0.6075 GB " [Timeout remaining time 632] (rm -f ModelicaTest_3.2.3_ModelicaTest.MultiBody.Joints.RevoluteInitialization.pipe ; mkfifo ModelicaTest_3.2.3_ModelicaTest.MultiBody.Joints.RevoluteInitialization.pipe ; head -c 1048576 < ModelicaTest_3.2.3_ModelicaTest.MultiBody.Joints.RevoluteInitialization.pipe >> ../files/ModelicaTest_3.2.3_ModelicaTest.MultiBody.Joints.RevoluteInitialization.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=ModelicaTest_3.2.3_ModelicaTest.MultiBody.Joints.RevoluteInitialization_res.mat --tempDir=temp_ModelicaTest_3_2_3_ModelicaTest_MultiBody_Joints_RevoluteInitialization_fmu --startTime=0 --stopTime=1.1 --stepSize=0.000219912 --timeout=50 --tolerance=1e-06 ModelicaTest_3_2_3_ModelicaTest_MultiBody_Joints_RevoluteInitialization.fmu > ModelicaTest_3.2.3_ModelicaTest.MultiBody.Joints.RevoluteInitialization.pipe 2>&1) [Timeout 52.5] diffSimulationResults("ModelicaTest_3.2.3_ModelicaTest.MultiBody.Joints.RevoluteInitialization_res.mat","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v3.2.3+build.4/ModelicaTest/MultiBody/Joints/RevoluteInitialization/RevoluteInitialization.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/ModelicaTest_3.2.3_ModelicaTest.MultiBody.Joints.RevoluteInitialization.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 660] "" [Timeout remaining time 659] Reference file matches [Calling sys.exit(0), Time elapsed: 32.30380228202557]