Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Chemical_Chemical.Examples.Diffusion.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 0.0006365/0.0006365, allocations: 76.16 kB / 9.861 MB, free: 0.8281 MB / 10.45 MB Notification: Performance of NFInstanceAPI.mkTop(): time 0.0008675/0.001504, allocations: 443.8 kB / 10.29 MB, free: 404 kB / 10.45 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 0.0006939/0.0006939, allocations: 141.2 kB / 11.17 MB, free: 3 MB / 13.93 MB Notification: Performance of NFInstanceAPI.mkTop(): time 0.0008506/0.001545, allocations: 475.6 kB / 11.64 MB, free: 2.531 MB / 13.93 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+maint.om/package.mo): time 0.8871/0.8871, allocations: 177.2 MB / 189.5 MB, free: 5.316 MB / 186.7 MB Notification: Performance of NFInstanceAPI.mkTop(): time 0.08011/0.9672, allocations: 53.66 MB / 243.2 MB, free: 15.59 MB / 250.7 MB " [Timeout remaining time 179] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Chemical 2.0.0/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Chemical 2.0.0/package.mo): time 0.07951/0.07951, allocations: 17.37 MB / 261.3 MB, free: 13.46 MB / 266.7 MB Notification: Performance of NFInstanceAPI.mkTop(): time 0.007957/0.08747, allocations: 6.918 MB / 268.2 MB, free: 6.531 MB / 266.7 MB " [Timeout remaining time 180] Using package Chemical with version 2.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Chemical 2.0.0/package.mo) Using package Modelica with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+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: setCommandLineOptions("--fmiFlags=s:cvode") Running command: "" <> buildModelFMU(Chemical.Examples.Diffusion,fileNamePrefix="Chemical_Chemical_Examples_Diffusion",fmuType="me_cs",version="2.0+3.0",platforms={"static"}) "" <> buildModelFMU(Chemical.Examples.Diffusion,fileNamePrefix="Chemical_Chemical_Examples_Diffusion",fmuType="me_cs",version="2.0+3.0",platforms={"static"}) [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 1.142e-06/1.142e-06, allocations: 0 / 269.5 MB, free: 5.293 MB / 266.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 6.332e-06/7.474e-06, allocations: 6.312 kB / 269.5 MB, free: 5.285 MB / 266.7 MB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Chemical 2.0.0/Boundaries.mo:1343:7-1343:76:writable] Warning: An inner declaration for outer component dropOfCommons could not be found and was automatically generated. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Chemical 2.0.0/Boundaries.mo:1343:7-1343:76:writable] Notification: The diagnostics message for the missing inner is: Your model is using an outer \"dropOfCommons\" component but an inner \"dropOfCommons\" component is not defined. Use Chemical.DropOfCommons in your model to specify system properties. Notification: Performance of NFInst.instantiate(Chemical.Examples.Diffusion): time 0.1335/0.1335, allocations: 38.86 MB / 308.3 MB, free: 11.75 MB / 298.7 MB Notification: Performance of NFInst.instExpressions: time 0.02489/0.1584, allocations: 17.12 MB / 325.4 MB, free: 10.62 MB / 314.7 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.004664/0.163, allocations: 127.4 kB / 325.6 MB, free: 10.5 MB / 314.7 MB Notification: Performance of NFTyping.typeComponents: time 0.005362/0.1684, allocations: 2.645 MB / 328.2 MB, free: 7.836 MB / 314.7 MB Notification: Performance of NFTyping.typeBindings: time 0.007477/0.1759, allocations: 3.655 MB / 331.9 MB, free: 4.152 MB / 314.7 MB Notification: Performance of NFTyping.typeClassSections: time 0.00572/0.1816, allocations: 2.917 MB / 334.8 MB, free: 1.227 MB / 314.7 MB Notification: Performance of NFFlatten.flatten: time 0.01187/0.1934, allocations: 11.3 MB / 346.1 MB, free: 5.895 MB / 330.7 MB Notification: Performance of NFFlatten.resolveConnections: time 0.003163/0.1966, allocations: 2.479 MB / 348.6 MB, free: 3.297 MB / 330.7 MB Notification: Performance of NFEvalConstants.evaluate: time 0.008216/0.2048, allocations: 7.413 MB / 356 MB, free: 11.78 MB / 346.7 MB Notification: Performance of NFSimplifyModel.simplify: time 0.004115/0.2089, allocations: 3.962 MB / 359.9 MB, free: 7.805 MB / 346.7 MB Notification: Performance of NFPackage.collectConstants: time 0.00126/0.2102, allocations: 1.215 MB / 361.1 MB, free: 6.59 MB / 346.7 MB Notification: Performance of NFFlatten.collectFunctions: time 0.003907/0.2141, allocations: 2.357 MB / 363.5 MB, free: 4.234 MB / 346.7 MB Notification: Performance of NFScalarize.scalarize: time 0.001473/0.2156, allocations: 3.01 MB / 366.5 MB, free: 1.215 MB / 346.7 MB Notification: Performance of NFVerifyModel.verify: time 0.002513/0.2181, allocations: 3.41 MB / 369.9 MB, free: 13.8 MB / 362.7 MB Notification: Performance of NFConvertDAE.convert: time 0.008567/0.2267, allocations: 10.88 MB / 380.8 MB, free: 2.875 MB / 362.7 MB Notification: Performance of FrontEnd - DAE generated: time 1.171e-05/0.2267, allocations: 0 / 380.8 MB, free: 2.875 MB / 362.7 MB Notification: Performance of FrontEnd: time 1.262e-06/0.2267, allocations: 4 kB / 380.8 MB, free: 2.871 MB / 362.7 MB Notification: Performance of Transformations before backend: time 9.551e-05/0.2268, allocations: 0 / 380.8 MB, free: 2.871 MB / 362.7 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 3564 * Number of variables: 3564 Notification: Performance of Generate backend data structure: time 0.01081/0.2376, allocations: 14.74 MB / 395.6 MB, free: 4.027 MB / 378.7 MB Notification: Performance of prepare preOptimizeDAE: time 3.17e-05/0.2376, allocations: 8.031 kB / 395.6 MB, free: 4.02 MB / 378.7 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.001067/0.2387, allocations: 1.781 MB / 397.3 MB, free: 2.227 MB / 378.7 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.005315/0.244, allocations: 5.208 MB / 402.5 MB, free: 13 MB / 394.7 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.00369/0.2477, allocations: 3.29 MB / 405.8 MB, free: 9.637 MB / 394.7 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0009499/0.2486, allocations: 1.997 MB / 407.8 MB, free: 7.504 MB / 394.7 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0008125/0.2494, allocations: 1.137 MB / 409 MB, free: 6.367 MB / 394.7 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01097/0.2604, allocations: 14.22 MB / 423.2 MB, free: 8.082 MB / 410.7 MB Notification: Performance of preOpt findStateOrder (simulation): time 0.0001453/0.2606, allocations: 0 / 423.2 MB, free: 8.082 MB / 410.7 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004652/0.261, allocations: 467.9 kB / 423.6 MB, free: 7.625 MB / 410.7 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.001145/0.2622, allocations: 1.843 MB / 425.5 MB, free: 5.77 MB / 410.7 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.1321/0.3942, allocations: 16.4 MB / 441.9 MB, free: 84.96 MB / 410.7 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.05622/0.4505, allocations: 52.62 MB / 494.5 MB, free: 53.16 MB / 410.7 MB Notification: Performance of preOpt comSubExp (simulation): time 0.005238/0.4557, allocations: 3.132 MB / 497.6 MB, free: 50.07 MB / 410.7 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.00283/0.4585, allocations: 1.395 MB / 499 MB, free: 48.69 MB / 410.7 MB Notification: Performance of preOpt evalFunc (simulation): time 0.0009554/0.4595, allocations: 0.75 MB / 499.8 MB, free: 47.94 MB / 410.7 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.986e-05/0.4595, allocations: 91.88 kB / 499.9 MB, free: 47.84 MB / 410.7 MB Notification: Performance of pre-optimization done (n=533): time 6.673e-06/0.4595, allocations: 0 / 499.9 MB, free: 47.84 MB / 410.7 MB Notification: Performance of matching and sorting (n=755): time 0.1407/0.6002, allocations: 42.14 MB / 0.5293 GB, free: 6.133 MB / 410.7 MB Notification: Performance of inlineWhenForInitialization (initialization): time 0.02914/0.6293, allocations: 24.41 MB / 0.5531 GB, free: 12.84 MB / 442.7 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.006672/0.636, allocations: 7.605 MB / 0.5606 GB, free: 6.77 MB / 442.7 MB Notification: Performance of collectPreVariables (initialization): time 0.00173/0.6378, allocations: 144.8 kB / 0.5607 GB, free: 6.625 MB / 442.7 MB Notification: Performance of collectInitialEqns (initialization): time 0.001449/0.6392, allocations: 2.896 MB / 0.5635 GB, free: 4.195 MB / 442.7 MB Notification: Performance of collectInitialBindings (initialization): time 0.002282/0.6415, allocations: 2.637 MB / 0.5661 GB, free: 1.719 MB / 442.7 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.003734/0.6452, allocations: 1.751 MB / 0.5678 GB, free: 108 kB / 442.7 MB Notification: Performance of setup shared object (initialization): time 6.42e-05/0.6453, allocations: 301.1 kB / 0.5681 GB, free: 15.81 MB / 458.7 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.005908/0.6512, allocations: 2.667 MB / 0.5707 GB, free: 13.14 MB / 458.7 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.006148/0.6573, allocations: 3.743 MB / 0.5744 GB, free: 9.223 MB / 458.7 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.1404/0.7977, allocations: 10.21 MB / 0.5843 GB, free: 107.8 MB / 458.7 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.637e-05/0.7978, allocations: 8.656 kB / 0.5844 GB, free: 107.8 MB / 458.7 MB Notification: Performance of matching and sorting (n=910) (initialization): time 0.0263/0.8241, allocations: 10.09 MB / 0.5942 GB, free: 107.2 MB / 458.7 MB Notification: Performance of prepare postOptimizeDAE: time 2.917e-05/0.8241, allocations: 16.97 kB / 0.5942 GB, free: 107.2 MB / 458.7 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.735e-05/0.8241, allocations: 23.39 kB / 0.5942 GB, free: 107.2 MB / 458.7 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.02933/0.8535, allocations: 10.27 MB / 0.6043 GB, free: 106.8 MB / 458.7 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.02533/0.8788, allocations: 4.959 MB / 0.6091 GB, free: 106.8 MB / 458.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.02096/0.8998, allocations: 36.12 MB / 0.6444 GB, free: 79.32 MB / 458.7 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005979/0.9057, allocations: 318.2 kB / 0.6447 GB, free: 79.32 MB / 458.7 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001376/0.9071, allocations: 1.61 MB / 0.6463 GB, free: 79.32 MB / 458.7 MB Warning: Assuming fixed start value for the following 5 variables: d2.rear.n_flow:VARIABLE(flow=true unit = \"mol/s\" fixed = true ) \"Molar change of the substance\" type: Real d1.rear.n_flow:VARIABLE(flow=true unit = \"mol/s\" fixed = true ) \"Molar change of the substance\" type: Real d3.rear.n_flow:VARIABLE(flow=true unit = \"mol/s\" fixed = true ) \"Molar change of the substance\" type: Real d4.rear.n_flow:VARIABLE(flow=true unit = \"mol/s\" fixed = true ) \"Molar change of the substance\" type: Real d5.rear.n_flow:VARIABLE(flow=true unit = \"mol/s\" fixed = true ) \"Molar change of the substance\" type: Real Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 111 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (778): * Single equations (assignments): 746 * Array equations: 6 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 26 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 20 systems {(1,1,100.0%), (1,4,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (1,4,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (4,3,62.5%), (1,4,100.0%), (1,1,100.0%), (1,4,100.0%), (1,1,100.0%), (1,1,100.0%), (1,1,100.0%), (2,1,100.0%), (4,3,62.5%), (1,4,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 6 systems {(6,20), (4,3), (3,8), (2,1), (6,20), (4,3)} Notification: Performance of prepare postOptimizeDAE: time 0.002955/0.9101, allocations: 0.5077 MB / 0.6468 GB, free: 79.2 MB / 458.7 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.002287/0.9124, allocations: 0.8726 MB / 0.6476 GB, free: 79.2 MB / 458.7 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.02562/0.938, allocations: 16.11 MB / 0.6634 GB, free: 68.49 MB / 458.7 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 0.01309/0.9511, allocations: 5.729 MB / 0.669 GB, free: 62.81 MB / 458.7 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.129e-05/0.9511, allocations: 16 kB / 0.669 GB, free: 62.79 MB / 458.7 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.339e-05/0.9511, allocations: 35.86 kB / 0.669 GB, free: 62.76 MB / 458.7 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.03052/0.9817, allocations: 22.75 MB / 0.6912 GB, free: 41.58 MB / 458.7 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.246e-05/0.9817, allocations: 34.2 kB / 0.6913 GB, free: 41.55 MB / 458.7 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.00776/0.9894, allocations: 2.521 MB / 0.6937 GB, free: 39.1 MB / 458.7 MB Notification: Performance of postOpt removeConstants (simulation): time 0.001983/0.9914, allocations: 1.393 MB / 0.6951 GB, free: 38.36 MB / 458.7 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.02138/1.013, allocations: 7.571 MB / 0.7025 GB, free: 30.81 MB / 458.7 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0004866/1.013, allocations: 251.8 kB / 0.7027 GB, free: 30.56 MB / 458.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0227/1.036, allocations: 36.84 MB / 0.7387 GB, free: 7.969 MB / 474.7 MB Error: Internal error IndexReduction.pantelidesIndexReduction failed! System is structurally singular and cannot be handled because the number of unassigned equations is larger than the number of states. Use -d=bltdump to get more information. Error: Internal error Transformation Module PFPlusExt index Reduction Method Pantelides failed! Error: Internal error IndexReduction.pantelidesIndexReduction failed! System is structurally singular and cannot be handled because the number of unassigned equations is larger than the number of states. Use -d=bltdump to get more information. Error: Internal error Transformation Module PFPlusExt index Reduction Method Pantelides failed! Error: Internal error IndexReduction.pantelidesIndexReduction failed! System is structurally singular and cannot be handled because the number of unassigned equations is larger than the number of states. Use -d=bltdump to get more information. Error: Internal error Transformation Module PFPlusExt index Reduction Method Pantelides failed! Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 0.007906/1.044, allocations: 10.14 MB / 0.7486 GB, free: 13.36 MB / 490.7 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01977/1.064, allocations: 11.04 MB / 0.7594 GB, free: 1.48 MB / 490.7 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001738/1.065, allocations: 191.7 kB / 0.7596 GB, free: 1.297 MB / 490.7 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002937/1.068, allocations: 227.9 kB / 0.7598 GB, free: 1.074 MB / 490.7 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.001311/1.07, allocations: 0.7676 MB / 0.7605 GB, free: 348 kB / 490.7 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.1318/1.201, allocations: 405.9 kB / 0.7609 GB, free: 120.6 MB / 490.7 MB Notification: Performance of sorting global known variables: time 0.005967/1.207, allocations: 5.169 MB / 0.766 GB, free: 120.3 MB / 490.7 MB Notification: Performance of sort global known variables: time 1.81e-07/1.207, allocations: 0 / 0.766 GB, free: 120.3 MB / 490.7 MB Notification: Performance of remove unused functions: time 0.00963/1.217, allocations: 4.103 MB / 0.77 GB, free: 120.3 MB / 490.7 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 146 * Number of states: 19 ($STATESET8.x[3],$STATESET8.x[2],$STATESET8.x[1],d5.rear.n_flow,$STATESET7.x,$STATESET6.x[3],$STATESET6.x[2],$STATESET6.x[1],d4.rear.n_flow,$STATESET5.x[3],$STATESET5.x[2],$STATESET5.x[1],d3.rear.n_flow,$STATESET4.x,$STATESET3.x,d1.rear.n_flow,$STATESET2.x,$STATESET1.x,d2.rear.n_flow) * Number of discrete variables: 11 ($cse169,$cse163,$cse148,$cse143,$cse136,$cse127,$cse121,$cse110,$cse103,$cse93,$cse87) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (581): * Single equations (assignments): 556 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 25 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 14 systems {(1,4,100.0%), (4,3,62.5%), (1,4,100.0%), (1,1,100.0%), (1,1,100.0%), (2,1,100.0%), (1,4,100.0%), (4,3,62.5%), (1,4,100.0%), (1,1,100.0%), (1,1,100.0%), (1,4,100.0%), (1,1,100.0%), (1,1,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 11 systems {(4,20), (9,10), (3,3), (3,9), (8,10), (4,20), (9,10), (3,3), (3,3), (3,3), (3,3)} Notification: Performance of Backend phase and start with SimCode phase: time 0.01807/1.235, allocations: 11.94 MB / 0.7816 GB, free: 115.9 MB / 490.7 MB Notification: Performance of simCode: created initialization part: time 0.0121/1.247, allocations: 8.621 MB / 0.79 GB, free: 113.5 MB / 490.7 MB Notification: Performance of simCode: created event and clocks part: time 0.0001464/1.247, allocations: 118.5 kB / 0.7902 GB, free: 113.5 MB / 490.7 MB Notification: Performance of simCode: created simulation system equations: time 0.006326/1.254, allocations: 6.024 MB / 0.796 GB, free: 110.9 MB / 490.7 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.007611/1.261, allocations: 4.22 MB / 0.8002 GB, free: 110.6 MB / 490.7 MB [/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/Compiler/SimCode/SimCodeUtil.mo:4091:9-4091:59:writable] Error: Internal error function createStateSetsSets failed. [/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/Compiler/SimCode/SimCodeUtil.mo:743:5-743:146:writable] Error: Internal error function createSimCode failed [Transformation from optimised DAE to simulation code structure failed] " [Timeout remaining time 659] [Calling sys.exit(0), Time elapsed: 2.6301588555797935]