Build (method = -2) #dp: 593 Step-3' Graph: 13 vertices and 132 arcs (0.00s) Step-4' Graph: 8 vertices and 122 arcs (0.00s) #V4/#V3 = 0.62 #A4/#A3 = 0.92 Ready! (0.00s) Optimize a model with 88 rows, 123 columns and 358 nonzeros Presolve removed 67 rows and 81 columns Presolve time: 0.00s Presolved: 21 rows, 42 columns, 118 nonzeros Variable types: 0 continuous, 42 integer (3 binary) Found heuristic solution: objective 356.0000000 Found heuristic solution: objective 285.0000000 Found heuristic solution: objective 270.0000000 Optimize a model with 21 rows, 42 columns and 118 nonzeros Presolved: 21 rows, 42 columns, 118 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 3.900e+01 Factor NZ : 2.310e+02 Factor Ops : 3.311e+03 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 5.52696801e+02 -3.79715828e+02 1.52e+01 0.00e+00 1.91e+01 0s 1 3.41125196e+02 7.22704595e+01 1.62e+00 6.66e-16 3.18e+00 0s 2 2.82211471e+02 2.35506936e+02 1.56e-03 6.66e-16 4.64e-01 0s 3 2.60984658e+02 2.57914159e+02 3.44e-05 2.22e-16 3.04e-02 0s 4 2.60501955e+02 2.60497371e+02 1.60e-14 2.22e-16 4.54e-05 0s 5 2.60500000e+02 2.60500000e+02 7.82e-14 2.26e-16 4.60e-11 0s Barrier solved model in 5 iterations and 0.00 seconds Optimal objective 2.60500000e+02 Root relaxation: objective 2.605000e+02, 21 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 260.50000 0 2 270.00000 260.50000 3.52% - 0s H 0 0 261.0000000 260.50000 0.19% - 0s Explored 0 nodes (21 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.610000000000e+02, best bound 2.610000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 261 Solution: 3 x [72] 2 x [64] 7 x [62] 1 x [55] 3 x [48] 4 x [34] 7 x [27] 2 x [15] 5 x [14] 1 x [1] 6 x [16, 61] 5 x [58, 79] 1 x [28, 58] 1 x [28, 39] 8 x [35, 47] 1 x [13, 16] 8 x [12, 28] 10 x [10] 4 x [7, 67] 1 x [7, 16] 2 x [5] 2 x [5, 52] 2 x [4, 38] 3 x [4, 18] 7 x [3, 53] 2 x [45, 76] 2 x [19, 69] 4 x [45, 51] 8 x [43] 8 x [19, 33] 1 x [25, 40] 10 x [17] 9 x [9] 5 x [6] 7 x [66, 80] 1 x [65, 70] 5 x [56, 77] 8 x [44, 74] 9 x [32, 75] 1 x [32, 59] 1 x [11, 20] 1 x [11, 78] 7 x [63] 4 x [11, 57] 2 x [41, 54] 5 x [49, 50] 10 x [37] 3 x [31, 49] 1 x [2, 31] 7 x [29, 71] 9 x [21, 26] 10 x [24, 30] 7 x [23, 59] 2 x [8, 36] 3 x [22, 73] 1 x [22, 68] 3 x [22, 60] 6 x [42, 46] 2 x [46, 46] 1 x [22]