Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr ModelicaTest_trunk_ModelicaTest.Fluid.TestExamplesVariants.BranchingDynamicPipes_MomentumSteadyState.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex trunk/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica trunk/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices trunk/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest trunk/package.mo", uses=false) Using package ModelicaTest with version trunk (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest trunk/package.mo) Using package ModelicaServices with version trunk (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices trunk/package.mo) Using package Modelica with version trunk (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica trunk/package.mo) Using package Complex with version trunk (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex trunk/package.mo) Running command: translateModel(ModelicaTest.Fluid.TestExamplesVariants.BranchingDynamicPipes_MomentumSteadyState,tolerance=1e-05,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|pipe1.mediums.1..T|pipe1.mediums.1..Xi.1.|pipe1.mediums.1..p|pipe1.mediums.2..T|pipe1.mediums.2..Xi.1.|pipe1.mediums.2..p|pipe1.mediums.3..T|pipe1.mediums.3..Xi.1.|pipe1.mediums.3..p|pipe1.mediums.4..T|pipe1.mediums.4..Xi.1.|pipe1.mediums.4..p|pipe1.mediums.5..T|pipe1.mediums.5..Xi.1.|pipe1.mediums.5..p|pipe2.mediums.1..T|pipe2.mediums.1..Xi.1.|pipe2.mediums.1..p|pipe2.mediums.2..T|pipe2.mediums.2..Xi.1.|pipe2.mediums.2..p|pipe2.mediums.3..T|pipe2.mediums.3..Xi.1.|pipe2.mediums.3..p|pipe2.mediums.4..T|pipe2.mediums.4..Xi.1.|pipe2.mediums.4..p|pipe2.mediums.5..T|pipe2.mediums.5..Xi.1.|pipe2.mediums.5..p|pipe3.mediums.1..T|pipe3.mediums.1..Xi.1.|pipe3.mediums.1..p|pipe3.mediums.2..T|pipe3.mediums.2..Xi.1.|pipe3.mediums.2..p|pipe3.mediums.3..T|pipe3.mediums.3..Xi.1.|pipe3.mediums.3..p|pipe3.mediums.4..T|pipe3.mediums.4..Xi.1.|pipe3.mediums.4..p|pipe3.mediums.5..T|pipe3.mediums.5..Xi.1.|pipe3.mediums.5..p|pipe4.mediums.1..T|pipe4.mediums.1..Xi.1.|pipe4.mediums.1..p|pipe4.mediums.2..T|pipe4.mediums.2..Xi.1.|pipe4.mediums.2..p|pipe4.mediums.3..T|pipe4.mediums.3..Xi.1.|pipe4.mediums.3..p|pipe4.mediums.4..T|pipe4.mediums.4..Xi.1.|pipe4.mediums.4..p|pipe4.mediums.5..T|pipe4.mediums.5..Xi.1.|pipe4.mediums.5..p",fileNamePrefix="ModelicaTest_trunk_ModelicaTest.Fluid.TestExamplesVariants.BranchingDynamicPipes_MomentumSteadyState") translateModel(ModelicaTest.Fluid.TestExamplesVariants.BranchingDynamicPipes_MomentumSteadyState,tolerance=1e-05,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|pipe1.mediums.1..T|pipe1.mediums.1..Xi.1.|pipe1.mediums.1..p|pipe1.mediums.2..T|pipe1.mediums.2..Xi.1.|pipe1.mediums.2..p|pipe1.mediums.3..T|pipe1.mediums.3..Xi.1.|pipe1.mediums.3..p|pipe1.mediums.4..T|pipe1.mediums.4..Xi.1.|pipe1.mediums.4..p|pipe1.mediums.5..T|pipe1.mediums.5..Xi.1.|pipe1.mediums.5..p|pipe2.mediums.1..T|pipe2.mediums.1..Xi.1.|pipe2.mediums.1..p|pipe2.mediums.2..T|pipe2.mediums.2..Xi.1.|pipe2.mediums.2..p|pipe2.mediums.3..T|pipe2.mediums.3..Xi.1.|pipe2.mediums.3..p|pipe2.mediums.4..T|pipe2.mediums.4..Xi.1.|pipe2.mediums.4..p|pipe2.mediums.5..T|pipe2.mediums.5..Xi.1.|pipe2.mediums.5..p|pipe3.mediums.1..T|pipe3.mediums.1..Xi.1.|pipe3.mediums.1..p|pipe3.mediums.2..T|pipe3.mediums.2..Xi.1.|pipe3.mediums.2..p|pipe3.mediums.3..T|pipe3.mediums.3..Xi.1.|pipe3.mediums.3..p|pipe3.mediums.4..T|pipe3.mediums.4..Xi.1.|pipe3.mediums.4..p|pipe3.mediums.5..T|pipe3.mediums.5..Xi.1.|pipe3.mediums.5..p|pipe4.mediums.1..T|pipe4.mediums.1..Xi.1.|pipe4.mediums.1..p|pipe4.mediums.2..T|pipe4.mediums.2..Xi.1.|pipe4.mediums.2..p|pipe4.mediums.3..T|pipe4.mediums.3..Xi.1.|pipe4.mediums.3..p|pipe4.mediums.4..T|pipe4.mediums.4..Xi.1.|pipe4.mediums.4..p|pipe4.mediums.5..T|pipe4.mediums.5..Xi.1.|pipe4.mediums.5..p",fileNamePrefix="ModelicaTest_trunk_ModelicaTest.Fluid.TestExamplesVariants.BranchingDynamicPipes_MomentumSteadyState") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex trunk/package.mo): time 0.001619/0.001619, allocations: 207.3 kB / 17.99 MB, free: 3.777 MB / 13.93 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica trunk/package.mo): time 1.439/1.439, allocations: 226.7 MB / 245.5 MB, free: 6.98 MB / 202.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices trunk/package.mo): time 0.0009767/0.0009766, allocations: 108 kB / 296.7 MB, free: 6.496 MB / 234.7 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest trunk/package.mo): time 0.3567/0.3567, allocations: 44.83 MB / 392.7 MB, free: 34.73 MB / 298.7 MB Notification: Performance of FrontEnd - loaded program: time 0.001193/0.001193, allocations: 59.91 kB / 465.5 MB, free: 12.13 MB / 346.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3138/0.315, allocations: 62.02 MB / 0.5152 GB, free: 37.82 MB / 378.7 MB Notification: Performance of NFInst.instantiate(ModelicaTest.Fluid.TestExamplesVariants.BranchingDynamicPipes_MomentumSteadyState): time 0.5763/0.8913, allocations: 276.4 MB / 0.7851 GB, free: 10.53 MB / 0.4948 GB Notification: Performance of NFInst.instExpressions: time 0.03836/0.9297, allocations: 24.19 MB / 0.8087 GB, free: 9.43 MB / 0.5105 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.004069/0.9338, allocations: 120.4 kB / 0.8088 GB, free: 9.359 MB / 0.5105 GB Notification: Performance of NFTyping.typeComponents: time 0.003724/0.9376, allocations: 1.118 MB / 0.8099 GB, free: 8.469 MB / 0.5105 GB Notification: Performance of NFTyping.typeBindings: time 0.01736/0.955, allocations: 5.898 MB / 0.8157 GB, free: 3.285 MB / 0.5105 GB Notification: Performance of NFTyping.typeClassSections: time 0.02001/0.9751, allocations: 7.529 MB / 0.823 GB, free: 11.76 MB / 0.5261 GB Notification: Performance of NFFlatten.flatten: time 0.02264/0.9977, allocations: 22.94 MB / 0.8454 GB, free: 4.766 MB / 0.5417 GB Notification: Performance of NFFlatten.resolveConnections: time 0.00697/1.005, allocations: 3.683 MB / 0.849 GB, free: 1.051 MB / 0.5417 GB Notification: Performance of NFEvalConstants.evaluate: time 0.01181/1.017, allocations: 5.172 MB / 0.8541 GB, free: 11.86 MB / 0.5573 GB Notification: Performance of NFSimplifyModel.simplify: time 0.01168/1.028, allocations: 6.853 MB / 0.8608 GB, free: 4.988 MB / 0.5573 GB Notification: Performance of NFPackage.collectConstants: time 0.003272/1.032, allocations: 384 kB / 0.8611 GB, free: 4.613 MB / 0.5573 GB Notification: Performance of NFFlatten.collectFunctions: time 0.02619/1.058, allocations: 12.69 MB / 0.8735 GB, free: 7.898 MB / 0.573 GB Notification: Performance of NFScalarize.scalarize: time 0.008014/1.066, allocations: 3.822 MB / 0.8773 GB, free: 4.066 MB / 0.573 GB Notification: Performance of NFVerifyModel.verify: time 0.01123/1.077, allocations: 4.293 MB / 0.8815 GB, free: 15.75 MB / 0.5886 GB Notification: Performance of NFConvertDAE.convert: time 0.03617/1.113, allocations: 18.19 MB / 0.8992 GB, free: 13.52 MB / 0.6042 GB Notification: Performance of FrontEnd - DAE generated: time 8.987e-06/1.113, allocations: 4 kB / 0.8992 GB, free: 13.51 MB / 0.6042 GB Notification: Performance of FrontEnd: time 2.765e-06/1.113, allocations: 3.938 kB / 0.8992 GB, free: 13.51 MB / 0.6042 GB Notification: Performance of Transformations before backend: time 0.0004585/1.114, allocations: 0 / 0.8992 GB, free: 13.51 MB / 0.6042 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 2025 * Number of variables: 2025 Notification: Performance of Generate backend data structure: time 0.04289/1.157, allocations: 11.47 MB / 0.9104 GB, free: 1.953 MB / 0.6042 GB Notification: Performance of prepare preOptimizeDAE: time 4.821e-05/1.157, allocations: 12.02 kB / 0.9104 GB, free: 1.941 MB / 0.6042 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.005858/1.163, allocations: 0.8539 MB / 0.9113 GB, free: 1.078 MB / 0.6042 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.2701/1.433, allocations: 5.757 MB / 0.9169 GB, free: 247.7 MB / 0.6042 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0006709/1.434, allocations: 487.2 kB / 0.9174 GB, free: 247.5 MB / 0.6042 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.003469/1.437, allocations: 0.6283 MB / 0.918 GB, free: 247.3 MB / 0.6042 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.03256/1.47, allocations: 14.25 MB / 0.9319 GB, free: 242.5 MB / 0.6042 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0003965/1.47, allocations: 22.34 kB / 0.9319 GB, free: 242.5 MB / 0.6042 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.002901/1.473, allocations: 257.6 kB / 0.9322 GB, free: 242.3 MB / 0.6042 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.001695/1.475, allocations: 1.266 MB / 0.9334 GB, free: 242.1 MB / 0.6042 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.03423/1.509, allocations: 16.54 MB / 0.9496 GB, free: 236.7 MB / 0.6042 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 0.09014/1.599, allocations: 52.94 MB / 1.001 GB, free: 186.4 MB / 0.6042 GB Notification: Performance of preOpt comSubExp (simulation): time 0.02057/1.62, allocations: 10.97 MB / 1.012 GB, free: 175.5 MB / 0.6042 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.011/1.631, allocations: 7.316 MB / 1.019 GB, free: 168.2 MB / 0.6042 GB Notification: Performance of preOpt evalFunc (simulation): time 0.003238/1.634, allocations: 4.206 MB / 1.023 GB, free: 163.2 MB / 0.6042 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0002005/1.634, allocations: 152 kB / 1.023 GB, free: 163 MB / 0.6042 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.005506/1.64, allocations: 0.7669 MB / 1.024 GB, free: 162.3 MB / 0.6042 GB Notification: Performance of pre-optimization done (n=881): time 3.306e-05/1.64, allocations: 0 / 1.024 GB, free: 162.3 MB / 0.6042 GB Notification: Performance of matching and sorting (n=1121): time 0.3055/1.946, allocations: 96.24 MB / 1.118 GB, free: 66.66 MB / 0.6042 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001373/1.946, allocations: 168.2 kB / 1.118 GB, free: 66.48 MB / 0.6042 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.006203/1.952, allocations: 3.876 MB / 1.122 GB, free: 62.62 MB / 0.6042 GB Notification: Performance of collectPreVariables (initialization): time 0.003321/1.955, allocations: 233.7 kB / 1.122 GB, free: 62.38 MB / 0.6042 GB Notification: Performance of collectInitialEqns (initialization): time 0.001406/1.957, allocations: 2.419 MB / 1.125 GB, free: 59.95 MB / 0.6042 GB Notification: Performance of collectInitialBindings (initialization): time 0.005289/1.962, allocations: 3.894 MB / 1.128 GB, free: 56.09 MB / 0.6042 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.01122/1.973, allocations: 2.238 MB / 1.131 GB, free: 53.84 MB / 0.6042 GB Notification: Performance of setup shared object (initialization): time 5.286e-05/1.973, allocations: 305.1 kB / 1.131 GB, free: 53.54 MB / 0.6042 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.01948/1.993, allocations: 10.22 MB / 1.141 GB, free: 43.3 MB / 0.6042 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.02365/2.016, allocations: 11.73 MB / 1.152 GB, free: 31.13 MB / 0.6042 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.04258/2.059, allocations: 22.32 MB / 1.174 GB, free: 8.309 MB / 0.6042 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.516e-05/2.059, allocations: 12 kB / 1.174 GB, free: 8.297 MB / 0.6042 GB Notification: Performance of matching and sorting (n=1390) (initialization): time 0.3478/2.407, allocations: 32.71 MB / 1.206 GB, free: 223.6 MB / 0.6042 GB Notification: Performance of prepare postOptimizeDAE: time 5.367e-05/2.407, allocations: 21.22 kB / 1.206 GB, free: 223.6 MB / 0.6042 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.13e-05/2.407, allocations: 33.58 kB / 1.206 GB, free: 223.6 MB / 0.6042 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.2433/2.65, allocations: 77.75 MB / 1.282 GB, free: 171.9 MB / 0.6042 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004745/2.655, allocations: 1.091 MB / 1.283 GB, free: 170.8 MB / 0.6042 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.06547/2.721, allocations: 35.03 MB / 1.317 GB, free: 135.9 MB / 0.6042 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0143/2.735, allocations: 1.712 MB / 1.319 GB, free: 134.2 MB / 0.6042 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.003286/2.738, allocations: 0.5778 MB / 1.32 GB, free: 133.6 MB / 0.6042 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0235/2.762, allocations: 12.02 MB / 1.331 GB, free: 121.6 MB / 0.6042 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.01977/2.782, allocations: 11.42 MB / 1.342 GB, free: 109.7 MB / 0.6042 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.03723/2.819, allocations: 21.67 MB / 1.364 GB, free: 87.53 MB / 0.6042 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 5.373e-05/2.819, allocations: 8 kB / 1.364 GB, free: 87.52 MB / 0.6042 GB Notification: Performance of matching and sorting (n=1390) (initialization_lambda0): time 0.07259/2.892, allocations: 31.23 MB / 1.394 GB, free: 56.52 MB / 0.6042 GB Notification: Performance of prepare postOptimizeDAE: time 6.177e-05/2.892, allocations: 23.75 kB / 1.394 GB, free: 56.5 MB / 0.6042 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.935e-05/2.892, allocations: 32 kB / 1.394 GB, free: 56.47 MB / 0.6042 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.468/3.36, allocations: 75.48 MB / 1.468 GB, free: 214.2 MB / 0.6042 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005709/3.366, allocations: 1.191 MB / 1.469 GB, free: 213.3 MB / 0.6042 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.06767/3.433, allocations: 32.03 MB / 1.5 GB, free: 189.5 MB / 0.6042 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.01395/3.447, allocations: 1.695 MB / 1.502 GB, free: 188.5 MB / 0.6042 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.003252/3.451, allocations: 0.5654 MB / 1.503 GB, free: 188 MB / 0.6042 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 145 * 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 (603): * Single equations (assignments): 602 * Array equations: 0 * 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): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(72,716)} Notification: Performance of prepare postOptimizeDAE: time 0.005864/3.456, allocations: 0.6971 MB / 1.503 GB, free: 187.3 MB / 0.6042 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.003706/3.46, allocations: 0.6522 MB / 1.504 GB, free: 187 MB / 0.6042 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.06368/3.524, allocations: 30.57 MB / 1.534 GB, free: 159.8 MB / 0.6042 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 0.000106/3.524, allocations: 123.9 kB / 1.534 GB, free: 159.7 MB / 0.6042 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.21e-05/3.524, allocations: 0 / 1.534 GB, free: 159.7 MB / 0.6042 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.04623/3.57, allocations: 23.68 MB / 1.557 GB, free: 135.8 MB / 0.6042 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.08228/3.653, allocations: 41.69 MB / 1.598 GB, free: 94.31 MB / 0.6042 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 8.653e-05/3.653, allocations: 4 kB / 1.598 GB, free: 94.3 MB / 0.6042 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.01076/3.663, allocations: 2.122 MB / 1.6 GB, free: 92.18 MB / 0.6042 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.04474/3.708, allocations: 13.42 MB / 1.613 GB, free: 78.86 MB / 0.6042 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.003248/3.711, allocations: 0.6049 MB / 1.613 GB, free: 78.25 MB / 0.6042 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.03443/3.746, allocations: 32.82 MB / 1.646 GB, free: 44.3 MB / 0.6042 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.107e-06/3.746, allocations: 8.016 kB / 1.646 GB, free: 44.3 MB / 0.6042 GB [/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork@2/OpenModelica/OMCompiler/Compiler/BackEnd/Differentiate.mo:267:5-267:157:writable] Error: Derivative of expression "pipe1.statesFM[7].T = Modelica.Math.Nonlinear.solveOneNonlinearEquation(function ModelicaTest.Fluid.TestExamplesVariants.BranchingDynamicPipes_MomentumSteadyState.pipe1.Medium.T_phX.f_nonlinear(#(pipe2.mediums[1].p), #(($cse29 * pipe2.mediums[1].h + $cse30 * pipe3.mediums[1].h) / ($cse29 + $cse30)), #({pipe1.statesFM[7].X[1]})), 190.0, 647.0, 1e-13)" w.r.t. "dummyVarA" is non-existent. Error: Internal error SymbolicJacobian.deriveAll failed [/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork@2/OpenModelica/OMCompiler/Compiler/BackEnd/SymbolicJacobian.mo:2440:7-2440:87:writable] Error: Internal error function generateSymbolicJacobian failed [/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork@2/OpenModelica/OMCompiler/Compiler/BackEnd/SymbolicJacobian.mo:2231:9-2231:79:writable] Error: Internal error function createJacobian failed Notification: Performance of postOpt symbolicJacobian (simulation): time 0.5896/4.336, allocations: 83.28 MB / 1.727 GB, free: 209.2 MB / 0.6042 GB Error: post-optimization module symbolicJacobian (simulation) failed.