Build (method = -2) #dp: 3249 Step-3' Graph: 156 vertices and 460 arcs (0.02s) Step-4' Graph: 25 vertices and 198 arcs (0.03s) #V4/#V3 = 0.16 #A4/#A3 = 0.43 Ready! (0.03s) Optimize a model with 70 rows, 199 columns and 552 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.00s Presolved: 68 rows, 197 columns, 548 nonzeros Variable types: 0 continuous, 197 integer (33 binary) Found heuristic solution: objective 86.0000000 Optimize a model with 68 rows, 197 columns and 548 nonzeros Presolved: 68 rows, 197 columns, 548 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.180e+02 Factor NZ : 6.360e+02 Factor Ops : 1.023e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 3.59164747e+02 -3.83506656e+02 1.08e+02 5.16e-02 4.26e+00 0s 1 8.12838737e+01 -1.42657977e+02 5.40e-13 3.33e-16 5.39e-01 0s 2 4.02702276e+01 1.57327885e+01 5.22e-14 1.67e-16 5.77e-02 0s 3 3.34091308e+01 3.29245450e+01 4.90e-14 2.22e-16 1.13e-03 0s 4 3.33334104e+01 3.33329258e+01 6.12e-13 2.22e-16 1.13e-06 0s 5 3.33333333e+01 3.33333333e+01 1.12e-13 2.04e-16 1.13e-12 0s Barrier solved model in 5 iterations and 0.00 seconds Optimal objective 3.33333333e+01 Root relaxation: objective 3.333333e+01, 128 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 33.33333 0 4 86.00000 33.33333 61.2% - 0s H 0 0 34.0000000 33.33333 1.96% - 0s Explored 0 nodes (154 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 3.400000000000e+01, best bound 3.400000000000e+01, gap 0.0% Preprocessing time: 0.03 seconds Gurobi run time: 0.01 seconds Total run time: 0.04 seconds Objective: 34 Solution: 3 x [35, 39, 45] 1 x [17, 38, 44] 1 x [2, 7, 44] 3 x [3, 23, 43] 2 x [5, 40, 42] 1 x [41] 1 x [2, 10, 41] 1 x [11, 34, 39] 1 x [27, 37, 37] 2 x [1, 6, 36] 2 x [8, 12, 33] 1 x [25, 25, 32] 3 x [3, 22, 31] 1 x [26, 26, 30] 2 x [9, 13, 29] 2 x [14, 18, 28] 1 x [5, 8, 24] 1 x [4, 5, 23] 2 x [4, 16, 21] 1 x [2, 3, 20] 2 x [14, 15, 19]