Build (method = -2) #dp: 444 Step-3' Graph: 33 vertices and 172 arcs (0.00s) Step-4' Graph: 21 vertices and 148 arcs (0.00s) #V4/#V3 = 0.64 #A4/#A3 = 0.86 Ready! (0.00s) Optimize a model with 58 rows, 149 columns and 411 nonzeros Presolve removed 25 rows and 30 columns Presolve time: 0.00s Presolved: 33 rows, 119 columns, 325 nonzeros Variable types: 0 continuous, 119 integer (3 binary) Found heuristic solution: objective 362.0000000 Found heuristic solution: objective 348.0000000 Found heuristic solution: objective 312.0000000 Optimize a model with 33 rows, 119 columns and 325 nonzeros Presolved: 33 rows, 119 columns, 325 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.300e+02 Factor NZ : 3.310e+02 Factor Ops : 3.909e+03 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.41718409e+03 -1.88985461e+03 1.92e+03 1.18e-01 5.16e+01 0s 1 5.26255765e+02 -6.57871101e+02 2.17e+02 4.44e-16 8.05e+00 0s 2 3.24671419e+02 4.42782130e+01 4.55e+00 1.11e-15 1.15e+00 0s 3 2.59893713e+02 1.98960888e+02 1.28e-01 4.44e-16 2.42e-01 0s 4 2.47229296e+02 2.37192372e+02 1.59e-02 2.22e-16 3.99e-02 0s 5 2.45133295e+02 2.44816916e+02 7.81e-04 2.22e-16 1.26e-03 0s 6 2.45000002e+02 2.44999997e+02 1.41e-08 2.22e-16 1.86e-08 0s 7 2.45000000e+02 2.45000000e+02 3.91e-14 3.33e-16 1.87e-14 0s Barrier solved model in 7 iterations and 0.00 seconds Optimal objective 2.45000000e+02 Root relaxation: objective 2.450000e+02, 52 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 245.0000000 245.00000 0.0% - 0s Explored 0 nodes (52 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.450000000000e+02, best bound 2.450000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 245 Solution: 15 x [34] 19 x [33] 11 x [32] 3 x [30] 17 x [30, 36] 7 x [25] 7 x [19] 1 x [14] 3 x [8] 3 x [2, 11] 17 x [6, 10] 1 x [23, 37] 9 x [17, 37] 3 x [1, 26] 2 x [11, 26] 17 x [23, 27] 11 x [11, 24] 24 x [22] 14 x [9, 13] 1 x [9, 12] 2 x [5, 21] 5 x [5, 20] 10 x [4, 16] 9 x [3, 16] 1 x [3, 9] 3 x [31, 35] 1 x [29, 35] 5 x [28, 35] 2 x [15, 35] 7 x [7, 35] 7 x [18, 31] 8 x [20, 31]