Running: ./testmodel.py --libraries=/var/lib/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_7.0.0_Buildings.Fluid.HeatExchangers.RadiantSlabs.Examples.SingleCircuitMultipleCircuitFiniteDifference.conf.json Using package ModelicaServices with version 3.2.3 (/var/lib/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo) Using package Modelica with version 3.2.3 (/var/lib/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo) Using package Complex with version 3.2.3 (/var/lib/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo) Using package Buildings with version 7.0.1 (/var/lib/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.1/package.mo) Running command: translateModel(Buildings.Fluid.HeatExchangers.RadiantSlabs.Examples.SingleCircuitMultipleCircuitFiniteDifference,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_7.0.0_Buildings.Fluid.HeatExchangers.RadiantSlabs.Examples.SingleCircuitMultipleCircuitFiniteDifference") Notification: Performance of loadFile(/var/lib/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.1/package.mo): time 2.127/2.127, allocations: 251.1 MB / 266.1 MB, free: 11.61 MB / 218.7 MB Notification: Performance of loadFile(/var/lib/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.001598/0.001598, allocations: 179.5 kB / 325.6 MB, free: 2.82 MB / 250.7 MB Notification: Performance of loadFile(/var/lib/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 2.527/2.527, allocations: 205.4 MB / 0.5766 GB, free: 20.75 MB / 426.7 MB Notification: Performance of loadFile(/var/lib/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.001186/0.001186, allocations: 96.61 kB / 0.6811 GB, free: 13.57 MB / 0.5105 GB Notification: Performance of FrontEnd - loaded program: time 0.0009768/0.0009768, allocations: 12.19 kB / 0.7951 GB, free: 135.6 MB / 0.6042 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2299/0.231, allocations: 106.3 MB / 0.8989 GB, free: 65.46 MB / 0.6042 GB Notification: Performance of FrontEnd - scodeFlatten: time 1.282/1.513, allocations: 458.4 MB / 1.347 GB, free: 8.949 MB / 0.8542 GB Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003719/1.514, allocations: 105.5 kB / 1.347 GB, free: 8.895 MB / 0.8542 GB Notification: Performance of FrontEnd - DAE generated: time 27.7/29.21, allocations: 4.212 GB / 5.559 GB, free: 64.73 MB / 0.9948 GB Notification: Performance of FrontEnd: time 3.166e-06/29.21, allocations: 0 / 5.559 GB, free: 64.73 MB / 0.9948 GB Notification: Performance of Transformations before backend: time 0.007001/29.22, allocations: 487.3 kB / 5.559 GB, free: 64.65 MB / 0.9948 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 2436 * Number of variables: 2436 Notification: Performance of Generate backend data structure: time 0.1737/29.39, allocations: 34.35 MB / 5.593 GB, free: 55.26 MB / 0.9948 GB Notification: Performance of prepare preOptimizeDAE: time 5.092e-05/29.39, allocations: 11.12 kB / 5.593 GB, free: 55.26 MB / 0.9948 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.02321/29.42, allocations: 2.495 MB / 5.595 GB, free: 53.99 MB / 0.9948 GB Notification: Performance of preOpt evaluateParameters (simulation): time 1.113/30.53, allocations: 69.04 MB / 5.663 GB, free: 79.36 MB / 0.9948 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.00204/30.53, allocations: 0.9241 MB / 5.664 GB, free: 79.34 MB / 0.9948 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.008854/30.54, allocations: 1.336 MB / 5.665 GB, free: 79.34 MB / 0.9948 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.05993/30.6, allocations: 16.18 MB / 5.681 GB, free: 77.55 MB / 0.9948 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0008522/30.6, allocations: 38.72 kB / 5.681 GB, free: 77.55 MB / 0.9948 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.00517/30.61, allocations: 405.9 kB / 5.681 GB, free: 77.55 MB / 0.9948 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0003798/30.61, allocations: 272.8 kB / 5.681 GB, free: 77.55 MB / 0.9948 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.04013/30.65, allocations: 13.13 MB / 5.694 GB, free: 77.47 MB / 0.9948 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 0.2296/30.88, allocations: 91.03 MB / 5.783 GB, free: 70.34 MB / 1.01 GB Notification: Performance of preOpt comSubExp (simulation): time 0.05768/30.94, allocations: 17.62 MB / 5.8 GB, free: 68.73 MB / 1.01 GB Notification: Performance of preOpt evalFunc (simulation): time 0.1215/31.06, allocations: 41.98 MB / 5.841 GB, free: 60.91 MB / 1.01 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.01663/31.07, allocations: 5.71 MB / 5.847 GB, free: 60.36 MB / 1.01 GB Notification: Performance of pre-optimization done (n=609): time 1.316e-05/31.07, allocations: 0 / 5.847 GB, free: 60.36 MB / 1.01 GB Notification: Performance of matching and sorting (n=633): time 0.148/31.22, allocations: 39.4 MB / 5.885 GB, free: 42.37 MB / 1.01 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001441/31.22, allocations: 173.6 kB / 5.885 GB, free: 42.23 MB / 1.01 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.09919/31.32, allocations: 32.27 MB / 5.917 GB, free: 32.58 MB / 1.01 GB Notification: Performance of collectPreVariables (initialization): time 0.003411/31.33, allocations: 287.6 kB / 5.917 GB, free: 32.35 MB / 1.01 GB Notification: Performance of collectInitialEqns (initialization): time 0.02159/31.35, allocations: 9.811 MB / 5.927 GB, free: 25.45 MB / 1.01 GB Notification: Performance of collectInitialBindings (initialization): time 0.007501/31.35, allocations: 2.379 MB / 5.929 GB, free: 23.97 MB / 1.01 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.003661/31.36, allocations: 295.9 kB / 5.929 GB, free: 23.74 MB / 1.01 GB Notification: Performance of setup shared object (initialization): time 0.002488/31.36, allocations: 0.9822 MB / 5.93 GB, free: 23.17 MB / 1.01 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.02436/31.39, allocations: 9.266 MB / 5.939 GB, free: 20.67 MB / 1.01 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.03046/31.42, allocations: 16.59 MB / 5.956 GB, free: 8.621 MB / 1.01 GB Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: sla1.con_b[1].lay[2].T[2] = sla1.con_b[1].lay[2].T_a_start + (sla1.con_b[1].lay[2].T_b_start - sla1.con_b[1].lay[2].T_a_start) * sla1.con_b[1].lay[2].UA * (sla1.con_b[1].lay[2].RNod[1] + sla1.con_b[1].lay[2].RNod[2]) (sla1.con_b[5].lay[2].T_a_start + (sla1.con_b[5].lay[2].T_b_start - sla1.con_b[5].lay[2].T_a_start) * sla1.con_b[5].lay[2].UA * (sla1.con_b[5].lay[2].RNod[1] + sla1.con_b[5].lay[2].RNod[2]) = sla1.con_b[1].lay[2].T_a_start + (sla1.con_b[1].lay[2].T_b_start - sla1.con_b[1].lay[2].T_a_start) * sla1.con_b[1].lay[2].UA * (sla1.con_b[1].lay[2].RNod[1] + sla1.con_b[1].lay[2].RNod[2])) Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: sla1.con_b[2].lay[2].T[2] = sla1.con_b[2].lay[2].T_a_start + (sla1.con_b[2].lay[2].T_b_start - sla1.con_b[2].lay[2].T_a_start) * sla1.con_b[2].lay[2].UA * (sla1.con_b[2].lay[2].RNod[1] + sla1.con_b[2].lay[2].RNod[2]) (sla1.con_b[5].lay[2].T_a_start + (sla1.con_b[5].lay[2].T_b_start - sla1.con_b[5].lay[2].T_a_start) * sla1.con_b[5].lay[2].UA * (sla1.con_b[5].lay[2].RNod[1] + sla1.con_b[5].lay[2].RNod[2]) = sla1.con_b[2].lay[2].T_a_start + (sla1.con_b[2].lay[2].T_b_start - sla1.con_b[2].lay[2].T_a_start) * sla1.con_b[2].lay[2].UA * (sla1.con_b[2].lay[2].RNod[1] + sla1.con_b[2].lay[2].RNod[2])) Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: sla1.con_b[3].lay[2].T[2] = sla1.con_b[3].lay[2].T_a_start + (sla1.con_b[3].lay[2].T_b_start - sla1.con_b[3].lay[2].T_a_start) * sla1.con_b[3].lay[2].UA * (sla1.con_b[3].lay[2].RNod[1] + sla1.con_b[3].lay[2].RNod[2]) (sla1.con_b[5].lay[2].T_a_start + (sla1.con_b[5].lay[2].T_b_start - sla1.con_b[5].lay[2].T_a_start) * sla1.con_b[5].lay[2].UA * (sla1.con_b[5].lay[2].RNod[1] + sla1.con_b[5].lay[2].RNod[2]) = sla1.con_b[3].lay[2].T_a_start + (sla1.con_b[3].lay[2].T_b_start - sla1.con_b[3].lay[2].T_a_start) * sla1.con_b[3].lay[2].UA * (sla1.con_b[3].lay[2].RNod[1] + sla1.con_b[3].lay[2].RNod[2])) Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: sla1.con_b[4].lay[2].T[2] = sla1.con_b[4].lay[2].T_a_start + (sla1.con_b[4].lay[2].T_b_start - sla1.con_b[4].lay[2].T_a_start) * sla1.con_b[4].lay[2].UA * (sla1.con_b[4].lay[2].RNod[1] + sla1.con_b[4].lay[2].RNod[2]) (sla1.con_b[5].lay[2].T_a_start + (sla1.con_b[5].lay[2].T_b_start - sla1.con_b[5].lay[2].T_a_start) * sla1.con_b[5].lay[2].UA * (sla1.con_b[5].lay[2].RNod[1] + sla1.con_b[5].lay[2].RNod[2]) = sla1.con_b[4].lay[2].T_a_start + (sla1.con_b[4].lay[2].T_b_start - sla1.con_b[4].lay[2].T_a_start) * sla1.con_b[4].lay[2].UA * (sla1.con_b[4].lay[2].RNod[1] + sla1.con_b[4].lay[2].RNod[2])) Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: sla1.con_a[1].lay[1].T[1] = sla1.con_a[1].lay[1].T_a_start (sla1.con_a[5].lay[1].T_a_start = sla1.con_a[1].lay[1].T_a_start) Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: sla1.con_a[2].lay[1].T[1] = sla1.con_a[2].lay[1].T_a_start (sla1.con_a[5].lay[1].T_a_start = sla1.con_a[2].lay[1].T_a_start) Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: sla1.con_a[3].lay[1].T[1] = sla1.con_a[3].lay[1].T_a_start (sla1.con_a[5].lay[1].T_a_start = sla1.con_a[3].lay[1].T_a_start) Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: sla1.con_a[4].lay[1].T[1] = sla1.con_a[4].lay[1].T_a_start (sla1.con_a[5].lay[1].T_a_start = sla1.con_a[4].lay[1].T_a_start) Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: sla2.con_a[1].lay[1].T[1] = sla2.con_a[1].lay[1].T_a_start (sla2.con_a[5].lay[1].T_a_start = sla2.con_a[1].lay[1].T_a_start) Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: sla2.con_a[2].lay[1].T[1] = sla2.con_a[2].lay[1].T_a_start (sla2.con_a[5].lay[1].T_a_start = sla2.con_a[2].lay[1].T_a_start) Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: sla2.con_a[3].lay[1].T[1] = sla2.con_a[3].lay[1].T_a_start (sla2.con_a[5].lay[1].T_a_start = sla2.con_a[3].lay[1].T_a_start) Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: sla2.con_a[4].lay[1].T[1] = sla2.con_a[4].lay[1].T_a_start (sla2.con_a[5].lay[1].T_a_start = sla2.con_a[4].lay[1].T_a_start) Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: sla3.sla.con_a[1].lay[1].T[1] = sla3.sla.con_a[1].lay[1].T_a_start (sla3.sla.con_a[5].lay[1].T_a_start = sla3.sla.con_a[1].lay[1].T_a_start) Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: sla3.sla.con_a[2].lay[1].T[1] = sla3.sla.con_a[2].lay[1].T_a_start (sla3.sla.con_a[5].lay[1].T_a_start = sla3.sla.con_a[2].lay[1].T_a_start) Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: sla3.sla.con_a[3].lay[1].T[1] = sla3.sla.con_a[3].lay[1].T_a_start (sla3.sla.con_a[5].lay[1].T_a_start = sla3.sla.con_a[3].lay[1].T_a_start) Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: sla3.sla.con_a[4].lay[1].T[1] = sla3.sla.con_a[4].lay[1].T_a_start (sla3.sla.con_a[5].lay[1].T_a_start = sla3.sla.con_a[4].lay[1].T_a_start) Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: sla3.sla.con_b[1].lay[2].T[2] = sla3.sla.con_b[1].lay[2].T_a_start + (sla3.sla.con_b[1].lay[2].T_b_start - sla3.sla.con_b[1].lay[2].T_a_start) * sla3.sla.con_b[1].lay[2].UA * (sla3.sla.con_b[1].lay[2].RNod[1] + sla3.sla.con_b[1].lay[2].RNod[2]) (sla3.sla.con_b[5].lay[2].T_a_start + (sla3.sla.con_b[5].lay[2].T_b_start - sla3.sla.con_b[5].lay[2].T_a_start) * sla3.sla.con_b[5].lay[2].UA * (sla3.sla.con_b[5].lay[2].RNod[1] + sla3.sla.con_b[5].lay[2].RNod[2]) = sla3.sla.con_b[1].lay[2].T_a_start + (sla3.sla.con_b[1].lay[2].T_b_start - sla3.sla.con_b[1].lay[2].T_a_start) * sla3.sla.con_b[1].lay[2].UA * (sla3.sla.con_b[1].lay[2].RNod[1] + sla3.sla.con_b[1].lay[2].RNod[2])) Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: sla3.sla.con_b[2].lay[2].T[2] = sla3.sla.con_b[2].lay[2].T_a_start + (sla3.sla.con_b[2].lay[2].T_b_start - sla3.sla.con_b[2].lay[2].T_a_start) * sla3.sla.con_b[2].lay[2].UA * (sla3.sla.con_b[2].lay[2].RNod[1] + sla3.sla.con_b[2].lay[2].RNod[2]) (sla3.sla.con_b[5].lay[2].T_a_start + (sla3.sla.con_b[5].lay[2].T_b_start - sla3.sla.con_b[5].lay[2].T_a_start) * sla3.sla.con_b[5].lay[2].UA * (sla3.sla.con_b[5].lay[2].RNod[1] + sla3.sla.con_b[5].lay[2].RNod[2]) = sla3.sla.con_b[2].lay[2].T_a_start + (sla3.sla.con_b[2].lay[2].T_b_start - sla3.sla.con_b[2].lay[2].T_a_start) * sla3.sla.con_b[2].lay[2].UA * (sla3.sla.con_b[2].lay[2].RNod[1] + sla3.sla.con_b[2].lay[2].RNod[2])) Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: sla3.sla.con_b[3].lay[2].T[2] = sla3.sla.con_b[3].lay[2].T_a_start + (sla3.sla.con_b[3].lay[2].T_b_start - sla3.sla.con_b[3].lay[2].T_a_start) * sla3.sla.con_b[3].lay[2].UA * (sla3.sla.con_b[3].lay[2].RNod[1] + sla3.sla.con_b[3].lay[2].RNod[2]) (sla3.sla.con_b[5].lay[2].T_a_start + (sla3.sla.con_b[5].lay[2].T_b_start - sla3.sla.con_b[5].lay[2].T_a_start) * sla3.sla.con_b[5].lay[2].UA * (sla3.sla.con_b[5].lay[2].RNod[1] + sla3.sla.con_b[5].lay[2].RNod[2]) = sla3.sla.con_b[3].lay[2].T_a_start + (sla3.sla.con_b[3].lay[2].T_b_start - sla3.sla.con_b[3].lay[2].T_a_start) * sla3.sla.con_b[3].lay[2].UA * (sla3.sla.con_b[3].lay[2].RNod[1] + sla3.sla.con_b[3].lay[2].RNod[2])) Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: sla3.sla.con_b[4].lay[2].T[2] = sla3.sla.con_b[4].lay[2].T_a_start + (sla3.sla.con_b[4].lay[2].T_b_start - sla3.sla.con_b[4].lay[2].T_a_start) * sla3.sla.con_b[4].lay[2].UA * (sla3.sla.con_b[4].lay[2].RNod[1] + sla3.sla.con_b[4].lay[2].RNod[2]) (sla3.sla.con_b[5].lay[2].T_a_start + (sla3.sla.con_b[5].lay[2].T_b_start - sla3.sla.con_b[5].lay[2].T_a_start) * sla3.sla.con_b[5].lay[2].UA * (sla3.sla.con_b[5].lay[2].RNod[1] + sla3.sla.con_b[5].lay[2].RNod[2]) = sla3.sla.con_b[4].lay[2].T_a_start + (sla3.sla.con_b[4].lay[2].T_b_start - sla3.sla.con_b[4].lay[2].T_a_start) * sla3.sla.con_b[4].lay[2].UA * (sla3.sla.con_b[4].lay[2].RNod[1] + sla3.sla.con_b[4].lay[2].RNod[2])) Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: sla2.con_b[1].lay[2].T[2] = sla2.con_b[1].lay[2].T_a_start + (sla2.con_b[1].lay[2].T_b_start - sla2.con_b[1].lay[2].T_a_start) * sla2.con_b[1].lay[2].UA * (sla2.con_b[1].lay[2].RNod[1] + sla2.con_b[1].lay[2].RNod[2]) (sla2.con_b[5].lay[2].T_a_start + (sla2.con_b[5].lay[2].T_b_start - sla2.con_b[5].lay[2].T_a_start) * sla2.con_b[5].lay[2].UA * (sla2.con_b[5].lay[2].RNod[1] + sla2.con_b[5].lay[2].RNod[2]) = sla2.con_b[1].lay[2].T_a_start + (sla2.con_b[1].lay[2].T_b_start - sla2.con_b[1].lay[2].T_a_start) * sla2.con_b[1].lay[2].UA * (sla2.con_b[1].lay[2].RNod[1] + sla2.con_b[1].lay[2].RNod[2])) Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: sla2.con_b[2].lay[2].T[2] = sla2.con_b[2].lay[2].T_a_start + (sla2.con_b[2].lay[2].T_b_start - sla2.con_b[2].lay[2].T_a_start) * sla2.con_b[2].lay[2].UA * (sla2.con_b[2].lay[2].RNod[1] + sla2.con_b[2].lay[2].RNod[2]) (sla2.con_b[5].lay[2].T_a_start + (sla2.con_b[5].lay[2].T_b_start - sla2.con_b[5].lay[2].T_a_start) * sla2.con_b[5].lay[2].UA * (sla2.con_b[5].lay[2].RNod[1] + sla2.con_b[5].lay[2].RNod[2]) = sla2.con_b[2].lay[2].T_a_start + (sla2.con_b[2].lay[2].T_b_start - sla2.con_b[2].lay[2].T_a_start) * sla2.con_b[2].lay[2].UA * (sla2.con_b[2].lay[2].RNod[1] + sla2.con_b[2].lay[2].RNod[2])) Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: sla2.con_b[3].lay[2].T[2] = sla2.con_b[3].lay[2].T_a_start + (sla2.con_b[3].lay[2].T_b_start - sla2.con_b[3].lay[2].T_a_start) * sla2.con_b[3].lay[2].UA * (sla2.con_b[3].lay[2].RNod[1] + sla2.con_b[3].lay[2].RNod[2]) (sla2.con_b[5].lay[2].T_a_start + (sla2.con_b[5].lay[2].T_b_start - sla2.con_b[5].lay[2].T_a_start) * sla2.con_b[5].lay[2].UA * (sla2.con_b[5].lay[2].RNod[1] + sla2.con_b[5].lay[2].RNod[2]) = sla2.con_b[3].lay[2].T_a_start + (sla2.con_b[3].lay[2].T_b_start - sla2.con_b[3].lay[2].T_a_start) * sla2.con_b[3].lay[2].UA * (sla2.con_b[3].lay[2].RNod[1] + sla2.con_b[3].lay[2].RNod[2])) Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: sla2.con_b[4].lay[2].T[2] = sla2.con_b[4].lay[2].T_a_start + (sla2.con_b[4].lay[2].T_b_start - sla2.con_b[4].lay[2].T_a_start) * sla2.con_b[4].lay[2].UA * (sla2.con_b[4].lay[2].RNod[1] + sla2.con_b[4].lay[2].RNod[2]) (sla2.con_b[5].lay[2].T_a_start + (sla2.con_b[5].lay[2].T_b_start - sla2.con_b[5].lay[2].T_a_start) * sla2.con_b[5].lay[2].UA * (sla2.con_b[5].lay[2].RNod[1] + sla2.con_b[5].lay[2].RNod[2]) = sla2.con_b[4].lay[2].T_a_start + (sla2.con_b[4].lay[2].T_b_start - sla2.con_b[4].lay[2].T_a_start) * sla2.con_b[4].lay[2].UA * (sla2.con_b[4].lay[2].RNod[1] + sla2.con_b[4].lay[2].RNod[2])) Notification: Performance of analyzeInitialSystem (initialization): time 1.414/32.83, allocations: 187.7 MB / 6.139 GB, free: 117 MB / 1.042 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 0.000341/32.83, allocations: 72.25 kB / 6.139 GB, free: 117 MB / 1.042 GB 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: No system for the symbolic initialization was generated