Build (method = -2) #dp: 1772 Step-3' Graph: 311 vertices and 926 arcs (0.02s) Step-4' Graph: 131 vertices and 566 arcs (0.02s) #V4/#V3 = 0.42 #A4/#A3 = 0.61 Ready! (0.02s) Optimize a model with 211 rows, 567 columns and 1443 nonzeros Presolve removed 105 rows and 188 columns Presolve time: 0.01s Presolved: 106 rows, 379 columns, 1014 nonzeros Variable types: 0 continuous, 379 integer (0 binary) Found heuristic solution: objective 2443.0000000 Found heuristic solution: objective 2368.0000000 Optimize a model with 106 rows, 379 columns and 1014 nonzeros Presolved: 106 rows, 379 columns, 1014 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 5.820e+02 Factor NZ : 2.013e+03 Factor Ops : 4.236e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 4.00395997e+03 -1.51643481e+04 2.51e+04 2.22e-16 1.01e+02 0s 1 2.85017062e+03 -5.46949764e+03 3.69e+03 9.44e-16 1.92e+01 0s 2 2.47617478e+03 1.28042327e+02 4.26e+02 9.77e-15 3.61e+00 0s 3 2.31342415e+03 1.33395876e+03 3.54e+00 3.44e-15 1.28e+00 0s 4 2.21806404e+03 2.09646883e+03 2.57e-01 3.89e-16 1.58e-01 0s 5 2.20317469e+03 2.19949123e+03 2.09e-02 2.92e-16 4.81e-03 0s 6 2.20200042e+03 2.20199872e+03 4.80e-06 3.75e-16 2.22e-06 0s 7 2.20200000e+03 2.20200000e+03 5.23e-12 2.48e-16 2.22e-12 0s Barrier solved model in 7 iterations and 0.00 seconds Optimal objective 2.20200000e+03 Root relaxation: objective 2.202000e+03, 195 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 2202.0000000 2202.00000 0.0% - 0s Explored 0 nodes (195 simplex iterations) in 0.02 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.202000000000e+03, best bound 2.202000000000e+03, gap 0.0% Preprocessing time: 0.03 seconds Gurobi run time: 0.02 seconds Total run time: 0.05 seconds Objective: 2202 Solution: 1 x [3] 48 x [18] 37 x [68] 42 x [41] 48 x [63] 11 x [65] 38 x [37] 24 x [43] 13 x [50] 10 x [13] 16 x [35] 28 x [51] 1 x [47, 70] 20 x [2] 51 x [36] 7 x [15] 93 x [15, 21] 5 x [27] 14 x [39] 29 x [59] 36 x [56] 41 x [64] 15 x [29, 75] 20 x [38] 27 x [48] 23 x [55] 47 x [69] 3 x [75, 77] 43 x [72] 31 x [26] 8 x [60] 37 x [61] 40 x [19] 58 x [22] 15 x [40, 75] 20 x [46] 27 x [67] 41 x [23] 44 x [73] 39 x [42] 40 x [44] 24 x [53] 14 x [74] 34 x [8] 11 x [10] 56 x [14] 42 x [14, 80] 37 x [9] 13 x [57] 12 x [6, 57] 63 x [4] 28 x [1, 12] 12 x [20] 2 x [6, 20] 38 x [32] 8 x [12, 32] 4 x [6, 32] 17 x [6, 54] 22 x [11] 13 x [66] 37 x [66, 79] 8 x [45] 14 x [6, 33] 32 x [17, 33] 17 x [31] 12 x [31, 75] 1 x [24] 29 x [12, 24, 47] 1 x [24, 75] 10 x [28, 75] 6 x [7, 30] 12 x [30, 34] 35 x [25, 49] 11 x [25, 30] 38 x [25, 78] 12 x [25, 75] 12 x [71] 9 x [16, 71] 47 x [30, 71] 64 x [58] 4 x [6, 58] 15 x [47, 58] 37 x [62] 11 x [12, 62] 12 x [17, 62, 76] 36 x [6, 52] 12 x [52, 75] 27 x [5, 52]