Build (method = -2) #dp: 3503 Step-3' Graph: 84 vertices and 284 arcs (0.01s) Step-4' Graph: 44 vertices and 204 arcs (0.01s) #V4/#V3 = 0.52 #A4/#A3 = 0.72 Ready! (0.01s) Optimize a model with 125 rows, 205 columns and 532 nonzeros Presolve removed 45 rows and 48 columns Presolve time: 0.00s Presolved: 80 rows, 157 columns, 392 nonzeros Variable types: 0 continuous, 157 integer (0 binary) Found heuristic solution: objective 490.0000000 Found heuristic solution: objective 257.0000000 Optimize a model with 80 rows, 157 columns and 392 nonzeros Presolve removed 1 rows and 1 columns Presolved: 79 rows, 156 columns, 390 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.550e+02 Factor NZ : 1.182e+03 Factor Ops : 2.331e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 9.46778462e+03 -7.80423369e+03 7.18e+03 5.55e-17 1.22e+02 0s 1 1.95555033e+03 -2.02903627e+03 8.01e+02 4.33e-15 1.69e+01 0s 2 4.45291199e+02 -6.18726257e+00 6.98e+00 1.40e-14 1.31e+00 0s 3 3.18502261e+02 2.29498400e+02 5.36e-13 3.25e-15 2.54e-01 0s 4 2.58710282e+02 2.51543538e+02 5.68e-14 3.89e-15 2.04e-02 0s 5 2.57654824e+02 2.56040297e+02 7.11e-14 3.94e-15 4.60e-03 0s Barrier performed 5 iterations in 0.00 seconds Objective cutoff exceeded Root relaxation: cutoff, 0 iterations, 0.00 seconds Explored 0 nodes (0 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.570000000000e+02, best bound 2.570000000000e+02, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.01 seconds Total run time: 0.02 seconds Objective: 257 Solution: 2 x [81] 5 x [1, 81] 2 x [2, 80] 1 x [79] 4 x [3, 79] 2 x [2, 79] 3 x [4, 78] 7 x [5, 77] 3 x [4, 77] 9 x [6, 76] 5 x [7, 75] 7 x [8, 74] 2 x [4, 74] 1 x [73] 2 x [9, 73] 1 x [6, 73] 1 x [4, 73] 8 x [72] 2 x [10, 72] 4 x [11, 71] 2 x [11, 70] 6 x [13, 69] 5 x [14, 68] 4 x [12, 67] 3 x [15, 66] 6 x [17, 65] 8 x [16, 64] 5 x [19, 63] 1 x [20, 62] 4 x [16, 62] 6 x [20, 61] 5 x [21, 60] 1 x [18, 60] 3 x [23, 59] 8 x [15, 58] 7 x [25, 57] 1 x [23, 57] 5 x [26, 56] 2 x [24, 56] 1 x [18, 56] 4 x [27, 55] 7 x [28, 54] 1 x [14, 54] 2 x [53] 3 x [29, 53] 2 x [27, 53] 2 x [22, 53] 7 x [30, 52] 7 x [31, 51] 1 x [31, 50] 2 x [30, 50] 6 x [33, 49] 1 x [33, 48] 8 x [32, 48] 10 x [34, 47] 7 x [35, 46] 5 x [37, 45] 4 x [38, 44] 1 x [37, 44] 8 x [36, 43] 1 x [35, 43] 7 x [40, 42] 5 x [39, 42] 2 x [41, 41]