Build (method = -2) #dp: 477 Step-3' Graph: 12 vertices and 108 arcs (0.00s) Step-4' Graph: 8 vertices and 100 arcs (0.00s) #V4/#V3 = 0.67 #A4/#A3 = 0.93 Ready! (0.00s) Optimize a model with 68 rows, 101 columns and 292 nonzeros Presolve removed 35 rows and 36 columns Presolve time: 0.00s Presolved: 33 rows, 65 columns, 184 nonzeros Variable types: 0 continuous, 65 integer (1 binary) Found heuristic solution: objective 313.0000000 Found heuristic solution: objective 191.0000000 Optimize a model with 33 rows, 65 columns and 184 nonzeros Presolved: 33 rows, 65 columns, 184 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 6.300e+01 Factor NZ : 5.020e+02 Factor Ops : 1.043e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 9.27381519e+02 -9.81251737e+02 2.98e+01 1.11e-16 2.76e+01 0s 1 3.37601710e+02 -1.79590837e+02 2.62e+00 4.44e-16 4.08e+00 0s 2 2.32966788e+02 1.19713272e+02 7.81e-03 7.77e-16 7.25e-01 0s 3 1.84756544e+02 1.71593653e+02 2.03e-04 3.89e-16 8.38e-02 0s 4 1.83575592e+02 1.83323039e+02 4.43e-06 4.44e-16 1.61e-03 0s 5 1.83500154e+02 1.83499548e+02 1.03e-13 5.14e-16 3.86e-06 0s 6 1.83500000e+02 1.83500000e+02 2.84e-14 4.44e-16 4.17e-12 0s Barrier solved model in 6 iterations and 0.00 seconds Optimal objective 1.83500000e+02 Root relaxation: objective 1.835000e+02, 42 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 183.50000 0 2 191.00000 183.50000 3.93% - 0s H 0 0 184.0000000 183.50000 0.27% - 0s Explored 0 nodes (42 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.840000000000e+02, best bound 1.840000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 184 Solution: 2 x [58] 8 x [52] 7 x [48] 10 x [45] 2 x [31] 10 x [29] 4 x [26] 8 x [25] 3 x [41, 47] 7 x [11, 39] 2 x [33, 57] 4 x [33, 50] 1 x [11, 33] 6 x [35, 46] 3 x [27, 30] 2 x [18, 55] 2 x [4, 16] 8 x [13, 55] 1 x [6, 17] 7 x [49, 56] 3 x [17, 44] 6 x [34, 43] 3 x [17, 42] 6 x [19, 40] 8 x [32, 37] 4 x [21, 28] 10 x [12, 59] 2 x [3, 4] 5 x [8, 53] 4 x [10, 38] 2 x [22, 36] 1 x [2, 4] 3 x [23, 54] 1 x [23, 51] 4 x [9, 51] 2 x [23, 23] 1 x [15, 20] 1 x [7, 20] 6 x [1, 9] 1 x [19, 60] 3 x [5, 34] 3 x [4, 14] 7 x [24, 27] 1 x [11]