Build (method = -2) #dp: 2605 Step-3' Graph: 64 vertices and 685 arcs (0.01s) Step-4' Graph: 50 vertices and 657 arcs (0.01s) #V4/#V3 = 0.78 #A4/#A3 = 0.96 Ready! (0.01s) Optimize a model with 131 rows, 658 columns and 1880 nonzeros Presolve removed 53 rows and 64 columns Presolve time: 0.01s Presolved: 78 rows, 594 columns, 1682 nonzeros Variable types: 0 continuous, 594 integer (21 binary) Found heuristic solution: objective 472.0000000 Found heuristic solution: objective 441.0000000 Optimize a model with 78 rows, 594 columns and 1682 nonzeros Presolved: 78 rows, 594 columns, 1682 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 8.970e+02 Factor NZ : 1.818e+03 Factor Ops : 5.618e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 3.75655857e+03 -8.84202599e+03 1.43e+04 6.06e-02 6.18e+01 0s 1 1.08976814e+03 -2.90526702e+03 1.65e+03 2.66e-15 8.69e+00 0s 2 4.87240377e+02 -5.65514342e+02 7.24e+01 6.00e-15 1.03e+00 0s 3 3.94588519e+02 -4.70750424e+01 7.91e+00 2.55e-15 3.74e-01 0s 4 3.45099033e+02 1.19346316e+02 1.18e+00 1.33e-15 1.86e-01 0s 5 3.27059489e+02 2.36672907e+02 4.23e-01 1.53e-15 7.45e-02 0s 6 3.11454719e+02 2.87423803e+02 1.26e-01 1.78e-15 1.98e-02 0s 7 3.06575536e+02 2.94469983e+02 4.41e-02 2.55e-15 9.95e-03 0s 8 3.04748287e+02 3.00495340e+02 8.73e-03 2.55e-15 3.49e-03 0s 9 3.03864404e+02 3.02915133e+02 2.01e-03 1.55e-15 7.80e-04 0s 10 3.03593423e+02 3.03458378e+02 1.89e-04 1.93e-15 1.11e-04 0s 11 3.03560113e+02 3.03540655e+02 1.81e-05 1.89e-15 1.60e-05 0s 12 3.03555562e+02 3.03555540e+02 3.84e-13 1.78e-15 1.80e-08 0s 13 3.03555556e+02 3.03555556e+02 1.35e-12 2.00e-15 1.80e-11 0s Barrier solved model in 13 iterations and 0.01 seconds Optimal objective 3.03555556e+02 Root relaxation: objective 3.035556e+02, 88 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 303.55556 0 12 441.00000 303.55556 31.2% - 0s H 0 0 304.0000000 303.55556 0.15% - 0s Explored 0 nodes (121 simplex iterations) in 0.03 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 3.040000000000e+02, best bound 3.040000000000e+02, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.03 seconds Total run time: 0.04 seconds Objective: 304 Solution: 5 x [81] 3 x [80] 4 x [79] 4 x [78] 9 x [77] 5 x [76] 7 x [75] 5 x [74] 7 x [73] 5 x [72] 4 x [71] 14 x [70] 2 x [69] 5 x [68] 9 x [67] 5 x [66] 5 x [65] 4 x [64] 8 x [63] 6 x [62] 5 x [1, 61] 3 x [60] 5 x [2, 60] 2 x [1, 60] 4 x [3, 59] 5 x [4, 58] 5 x [5, 57] 11 x [6, 56] 1 x [7, 55] 3 x [5, 55] 6 x [8, 54] 1 x [6, 54] 6 x [9, 53] 1 x [6, 53] 3 x [10, 52] 5 x [7, 52] 4 x [11, 51] 6 x [12, 50] 1 x [11, 50] 4 x [13, 49] 3 x [14, 48] 4 x [15, 47] 2 x [13, 47] 2 x [16, 46] 2 x [17, 45] 6 x [16, 45] 9 x [18, 44] 3 x [19, 43] 1 x [18, 43] 6 x [20, 42] 3 x [20, 41] 1 x [19, 41] 4 x [22, 40] 1 x [21, 40] 2 x [17, 40] 4 x [23, 39] 5 x [24, 38] 3 x [25, 37] 5 x [24, 37] 1 x [3, 3, 37] 6 x [26, 36] 1 x [27, 35] 3 x [26, 35] 1 x [4, 4, 35] 2 x [28, 34] 6 x [27, 34] 5 x [29, 33] 1 x [3, 7, 33] 1 x [5, 5, 33] 2 x [30, 32] 4 x [30, 31] 2 x [13, 13, 16] 5 x [13, 14, 15] 1 x [4, 14]