Running command: translateModel(Buildings.Fluid.HeatExchangers.RadiantSlabs.Examples.StepResponseEpsilonNTU,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_5.0.1_Buildings.Fluid.HeatExchangers.RadiantSlabs.Examples.StepResponseEpsilonNTU") Notification: Performance of loadModel(Buildings): time 3.433/3.433, allocations: 402 MB / 415.9 MB, free: 10.12 MB / 346.7 MB Notification: Performance of FrontEnd - loaded program: time 3.451e-05/3.477e-05, allocations: 12 kB / 0.5003 GB, free: 8.223 MB / 410.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1654/0.1654, allocations: 92.69 MB / 0.5909 GB, free: 11.36 MB / 0.4948 GB Notification: Performance of FrontEnd - scodeFlatten: time 1.376/1.542, allocations: 437.5 MB / 1.018 GB, free: 134.3 MB / 0.7448 GB Notification: Performance of FrontEnd - mkProgramGraph: time 0.00027/1.542, allocations: 109.6 kB / 1.018 GB, free: 134.2 MB / 0.7448 GB Notification: Performance of FrontEnd - DAE generated: time 4.527/6.068, allocations: 0.8426 GB / 1.861 GB, free: 122.3 MB / 0.7761 GB Notification: Performance of FrontEnd: time 2.109e-06/6.068, allocations: 0 / 1.861 GB, free: 122.3 MB / 0.7761 GB Notification: Performance of Transformations before backend: time 0.001707/6.07, allocations: 178.8 kB / 1.861 GB, free: 122.3 MB / 0.7761 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 888 * Number of variables: 888 Notification: Performance of Generate backend data structure: time 0.02477/6.095, allocations: 7.178 MB / 1.868 GB, free: 119.6 MB / 0.7761 GB Notification: Performance of prepare preOptimizeDAE: time 3.947e-05/6.095, allocations: 11.34 kB / 1.868 GB, free: 119.6 MB / 0.7761 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.006754/6.102, allocations: 0.8879 MB / 1.869 GB, free: 119.2 MB / 0.7761 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.07847/6.18, allocations: 25.5 MB / 1.894 GB, free: 117.7 MB / 0.7761 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0004479/6.181, allocations: 351 kB / 1.894 GB, free: 117.7 MB / 0.7761 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.002086/6.183, allocations: 0.4951 MB / 1.895 GB, free: 117.7 MB / 0.7761 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01446/6.197, allocations: 5.877 MB / 1.9 GB, free: 116.9 MB / 0.7761 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0001322/6.198, allocations: 16.86 kB / 1.9 GB, free: 116.9 MB / 0.7761 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0007415/6.198, allocations: 151.4 kB / 1.901 GB, free: 116.9 MB / 0.7761 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001202/6.198, allocations: 104.9 kB / 1.901 GB, free: 116.9 MB / 0.7761 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01146/6.21, allocations: 4.653 MB / 1.905 GB, free: 116.9 MB / 0.7761 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 0.05566/6.266, allocations: 30.72 MB / 1.935 GB, free: 104.5 MB / 0.7761 GB Notification: Performance of preOpt comSubExp (simulation): time 0.01468/6.28, allocations: 6.077 MB / 1.941 GB, free: 102.3 MB / 0.7761 GB Notification: Performance of preOpt evalFunc (simulation): time 0.03204/6.312, allocations: 15.35 MB / 1.956 GB, free: 91.45 MB / 0.7761 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.004288/6.317, allocations: 2.192 MB / 1.958 GB, free: 89.24 MB / 0.7761 GB Notification: Performance of pre-optimization done (n=233): time 5.922e-06/6.317, allocations: 2.281 kB / 1.958 GB, free: 89.24 MB / 0.7761 GB Notification: Performance of matching and sorting (n=251): time 0.03901/6.356, allocations: 15.34 MB / 1.973 GB, free: 73.73 MB / 0.7761 GB Notification: Performance of inlineWhenForInitialization (initialization): time 6.813e-05/6.356, allocations: 189.3 kB / 1.973 GB, free: 73.51 MB / 0.7761 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.02296/6.379, allocations: 10.94 MB / 1.984 GB, free: 62.58 MB / 0.7761 GB Notification: Performance of collectPreVariables (initialization): time 0.001075/6.38, allocations: 125.7 kB / 1.984 GB, free: 62.45 MB / 0.7761 GB Notification: Performance of collectInitialEqns (initialization): time 0.005258/6.385, allocations: 3.309 MB / 1.987 GB, free: 59.14 MB / 0.7761 GB Notification: Performance of collectInitialBindings (initialization): time 0.002149/6.387, allocations: 0.9243 MB / 1.988 GB, free: 58.23 MB / 0.7761 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.000812/6.388, allocations: 112 kB / 1.988 GB, free: 58.12 MB / 0.7761 GB Notification: Performance of setup shared object (initialization): time 0.0005988/6.389, allocations: 0.5442 MB / 1.989 GB, free: 57.57 MB / 0.7761 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.006506/6.395, allocations: 3.39 MB / 1.992 GB, free: 54.18 MB / 0.7761 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.008865/6.404, allocations: 6.525 MB / 1.999 GB, free: 46.43 MB / 0.7761 GB Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: sla.con_a[1].lay[1].T[1] = sla.con_a[1].lay[1].T_a_start (sla.con_a[5].lay[1].T_a_start = 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: sla.con_a[2].lay[1].T[1] = sla.con_a[2].lay[1].T_a_start (sla.con_a[5].lay[1].T_a_start = 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: sla.con_a[3].lay[1].T[1] = sla.con_a[3].lay[1].T_a_start (sla.con_a[5].lay[1].T_a_start = 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: sla.con_a[4].lay[1].T[1] = sla.con_a[4].lay[1].T_a_start (sla.con_a[5].lay[1].T_a_start = sla.con_a[4].lay[1].T_a_start) Notification: It was not possible to check the given initialization system for consistency symbolically, because the relevant equations are part of an algebraic loop. This is not supported yet. Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: sla.con_b[4].lay[2].T[3] = sla.con_b[4].lay[2].T_a_start + (sla.con_b[4].lay[2].T_b_start - sla.con_b[4].lay[2].T_a_start) * sla.con_b[4].lay[2].UA * (sla.con_b[4].lay[2].RNod[1] + sla.con_b[4].lay[2].RNod[2] + sla.con_b[4].lay[2].RNod[3]) (sla.con_b[5].lay[2].T_a_start + (sla.con_b[5].lay[2].T_b_start - sla.con_b[5].lay[2].T_a_start) * sla.con_b[5].lay[2].UA * (sla.con_b[5].lay[2].RNod[1] + sla.con_b[5].lay[2].RNod[2] + sla.con_b[5].lay[2].RNod[3]) = sla.con_b[4].lay[2].T_a_start + (sla.con_b[4].lay[2].T_b_start - sla.con_b[4].lay[2].T_a_start) * sla.con_b[4].lay[2].UA * (sla.con_b[4].lay[2].RNod[1] + sla.con_b[4].lay[2].RNod[2] + sla.con_b[4].lay[2].RNod[3])) Notification: Performance of analyzeInitialSystem (initialization): time 0.06103/6.465, allocations: 29.01 MB / 2.027 GB, free: 17.22 MB / 0.7761 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.461e-05/6.465, allocations: 27.94 kB / 2.027 GB, free: 17.19 MB / 0.7761 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