Build (method = -2) #dp: 1076 Step-3' Graph: 30 vertices and 149 arcs (0.00s) Step-4' Graph: 17 vertices and 123 arcs (0.00s) #V4/#V3 = 0.57 #A4/#A3 = 0.83 Ready! (0.00s) Optimize a model with 97 rows, 124 columns and 343 nonzeros Presolve removed 83 rows and 99 columns Presolve time: 0.00s Presolved: 14 rows, 25 columns, 62 nonzeros Variable types: 0 continuous, 25 integer (0 binary) Found heuristic solution: objective 2485.0000000 Found heuristic solution: objective 2315.0000000 Optimize a model with 14 rows, 25 columns and 62 nonzeros Presolved: 14 rows, 25 columns, 62 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.500e+01 Factor NZ : 1.050e+02 Factor Ops : 1.015e+03 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 4.51808473e+03 -3.03269319e+03 1.25e+03 1.11e-16 2.93e+02 0s 1 2.63651919e+03 8.27317243e+02 8.69e+01 2.22e-16 3.82e+01 0s 2 2.31144960e+03 1.72223239e+03 1.54e+00 1.80e-16 1.04e+01 0s 3 2.19155994e+03 2.10511761e+03 2.27e-13 3.33e-16 1.52e+00 0s 4 2.16637174e+03 2.16316885e+03 1.56e-13 3.33e-16 5.62e-02 0s 5 2.16500771e+03 2.16498233e+03 1.14e-13 2.22e-16 4.45e-04 0s 6 2.16500000e+03 2.16500000e+03 2.27e-13 4.44e-16 4.53e-10 0s Barrier solved model in 6 iterations and 0.00 seconds Optimal objective 2.16500000e+03 Root relaxation: objective 2.165000e+03, 15 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 2165.0000000 2165.00000 0.0% - 0s Explored 0 nodes (15 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.165000000000e+03, best bound 2.165000000000e+03, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 2165 Solution: 37 x [68] 48 x [18] 1 x [3] 11 x [65] 48 x [63] 42 x [41] 38 x [37] 24 x [43] 13 x [50] 28 x [51] 16 x [35] 10 x [13] 1 x [70] 6 x [36] 45 x [36, 47] 20 x [2] 29 x [21, 59] 14 x [21, 39] 5 x [27] 100 x [15] 41 x [64] 36 x [56] 27 x [48, 75] 20 x [5, 38] 15 x [21, 29] 3 x [75, 77] 47 x [69] 23 x [55, 75] 43 x [72] 37 x [61] 1 x [60] 7 x [5, 60] 31 x [26] 27 x [67, 75] 20 x [21, 46] 15 x [21, 40] 58 x [22] 40 x [19] 44 x [73] 41 x [23] 40 x [44] 39 x [17, 42] 14 x [74, 78] 24 x [53, 78] 98 x [14] 8 x [10, 80] 3 x [10, 17] 34 x [8, 80] 25 x [6, 57] 37 x [6, 9] 63 x [4] 17 x [12, 54] 50 x [32] 2 x [17, 20] 12 x [20, 76] 28 x [1, 12] 50 x [66] 22 x [11, 12] 8 x [45, 79] 46 x [33] 29 x [31, 79] 10 x [6, 28] 31 x [24] 2 x [30, 34] 9 x [12, 34] 1 x [6, 34] 6 x [7, 30] 96 x [25] 68 x [30, 71] 83 x [58] 9 x [16, 62] 35 x [49, 62] 16 x [6, 62] 1 x [52] 37 x [52, 52]