Build (method = -2) #dp: 678 Step-3' Graph: 50 vertices and 298 arcs (0.00s) Step-4' Graph: 33 vertices and 264 arcs (0.00s) #V4/#V3 = 0.66 #A4/#A3 = 0.89 Ready! (0.00s) Optimize a model with 73 rows, 265 columns and 736 nonzeros Presolve removed 29 rows and 37 columns Presolve time: 0.00s Presolved: 44 rows, 228 columns, 644 nonzeros Variable types: 0 continuous, 228 integer (55 binary) Found heuristic solution: objective 376.0000000 Found heuristic solution: objective 333.0000000 Optimize a model with 44 rows, 228 columns and 644 nonzeros Presolved: 44 rows, 228 columns, 644 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.910e+02 Factor NZ : 7.230e+02 Factor Ops : 1.404e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.28114093e+03 -1.98903555e+03 6.65e+03 1.99e-01 3.48e+01 0s 1 5.40280372e+02 -7.67360043e+02 1.05e+03 4.44e-16 6.54e+00 0s 2 3.27311351e+02 -1.61497223e+01 6.44e+01 4.44e-16 8.86e-01 0s 3 2.72393863e+02 1.83639395e+02 5.12e+00 2.78e-16 1.97e-01 0s 4 2.54975855e+02 2.43759712e+02 5.36e-01 2.08e-16 2.45e-02 0s 5 2.53411275e+02 2.52602291e+02 6.33e-02 3.07e-16 1.80e-03 0s 6 2.53000786e+02 2.52999326e+02 1.52e-04 2.33e-16 3.29e-06 0s 7 2.53000000e+02 2.53000000e+02 1.54e-10 3.12e-16 3.31e-12 0s Barrier solved model in 7 iterations and 0.00 seconds Optimal objective 2.53000000e+02 Root relaxation: objective 2.530000e+02, 103 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 253.0000000 253.00000 0.0% - 0s Explored 0 nodes (103 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.530000000000e+02, best bound 2.530000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.01 seconds Total run time: 0.02 seconds Objective: 253 Solution: 4 x [7] 9 x [5] 13 x [1] 1 x [1, 35] 16 x [37] 6 x [32] 4 x [28] 20 x [22] 1 x [20] 2 x [6, 20] 19 x [18] 8 x [16] 18 x [6, 10] 4 x [34, 39] 1 x [24, 39] 2 x [23, 39] 2 x [2, 36] 16 x [23, 36] 7 x [2, 30] 10 x [30, 38] 16 x [24, 25] 3 x [25, 40] 5 x [21] 1 x [13, 21] 1 x [21, 29] 3 x [21, 29, 29] 2 x [15, 17] 1 x [17, 33] 7 x [14, 15] 2 x [12] 2 x [12, 27] 9 x [12, 15] 2 x [9] 19 x [4, 31] 1 x [4, 26] 11 x [3, 27] 1 x [8, 19] 2 x [8, 11] 2 x [8, 24]