Build (method = -2) #dp: 3543 Step-3' Graph: 114 vertices and 359 arcs (0.01s) Step-4' Graph: 29 vertices and 189 arcs (0.01s) #V4/#V3 = 0.25 #A4/#A3 = 0.53 Ready! (0.02s) Optimize a model with 110 rows, 190 columns and 517 nonzeros Presolve removed 28 rows and 29 columns Presolve time: 0.00s Presolved: 82 rows, 161 columns, 432 nonzeros Variable types: 0 continuous, 161 integer (0 binary) Found heuristic solution: objective 498.0000000 Found heuristic solution: objective 315.0000000 Optimize a model with 82 rows, 161 columns and 432 nonzeros Presolve removed 1 rows and 1 columns Presolved: 81 rows, 160 columns, 430 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.590e+02 Factor NZ : 1.052e+03 Factor Ops : 2.102e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 6.90638609e+03 -3.97280068e+03 2.55e+03 2.22e-16 7.58e+01 0s 1 1.38805271e+03 -1.42340962e+03 2.82e+02 4.44e-16 1.15e+01 0s 2 3.39189210e+02 1.97169960e+00 1.14e-13 4.00e-15 8.99e-01 0s 3 2.59851096e+02 1.99704208e+02 5.25e-13 7.77e-16 1.60e-01 0s 4 2.50167929e+02 2.49158362e+02 5.40e-13 3.33e-16 2.69e-03 0s 5 2.50000006e+02 2.49999964e+02 2.27e-13 3.06e-16 1.13e-07 0s 6 2.50000000e+02 2.50000000e+02 2.27e-13 2.59e-16 1.16e-13 0s Barrier solved model in 6 iterations and 0.00 seconds Optimal objective 2.50000000e+02 Root relaxation: objective 2.500000e+02, 79 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 250.0000000 250.00000 0.0% - 0s Explored 0 nodes (79 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.500000000000e+02, best bound 2.500000000000e+02, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.01 seconds Total run time: 0.03 seconds Objective: 250 Solution: 3 x [7, 81] 7 x [24, 80] 9 x [25, 79] 1 x [12, 79] 2 x [9, 78] 9 x [17, 77] 5 x [34, 76] 7 x [18, 75] 5 x [16, 74] 5 x [14, 73] 9 x [4, 72] 6 x [13, 71] 5 x [5, 70] 3 x [38, 69] 1 x [8, 69] 6 x [10, 68] 1 x [44, 67] 4 x [27, 67] 9 x [2, 66] 1 x [46, 65] 3 x [26, 65] 8 x [35, 64] 11 x [48, 63] 3 x [48, 62] 6 x [50, 61] 1 x [44, 60] 4 x [3, 60] 6 x [9, 59] 1 x [53, 58] 8 x [51, 58] 2 x [53, 57] 2 x [53, 56] 7 x [54, 55] 1 x [1, 55] 10 x [38, 52] 1 x [46, 49] 4 x [22, 49] 7 x [12, 47] 7 x [15, 45] 4 x [37, 43] 1 x [5, 43] 5 x [1, 42] 5 x [8, 41] 5 x [11, 40] 2 x [36, 39] 1 x [8, 39] 8 x [29, 33] 3 x [28, 32] 1 x [18, 32] 2 x [6, 31] 7 x [20, 30] 6 x [19, 23] 10 x [6, 21]