Build (method = -2) #dp: 492 Step-3' Graph: 12 vertices and 110 arcs (0.00s) Step-4' Graph: 8 vertices and 102 arcs (0.00s) #V4/#V3 = 0.67 #A4/#A3 = 0.93 Ready! (0.00s) Optimize a model with 68 rows, 103 columns and 298 nonzeros Presolve removed 34 rows and 35 columns Presolve time: 0.00s Presolved: 34 rows, 68 columns, 192 nonzeros Variable types: 0 continuous, 68 integer (2 binary) Found heuristic solution: objective 331.0000000 Found heuristic solution: objective 211.0000000 Found heuristic solution: objective 199.0000000 Optimize a model with 34 rows, 68 columns and 192 nonzeros Presolved: 34 rows, 68 columns, 192 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 6.500e+01 Factor NZ : 5.050e+02 Factor Ops : 1.044e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.46593326e+03 -1.21775825e+03 4.82e+01 2.22e-16 4.54e+01 0s 1 4.09562673e+02 -2.48299045e+02 4.29e+00 1.44e-15 5.45e+00 0s 2 2.59635839e+02 9.89459442e+01 3.21e-03 1.33e-15 9.85e-01 0s 3 1.93237019e+02 1.60605030e+02 3.45e-05 8.47e-16 1.99e-01 0s 4 1.85702266e+02 1.82063635e+02 2.70e-06 7.32e-16 2.22e-02 0s 5 1.84651991e+02 1.84342498e+02 5.06e-07 9.99e-16 1.89e-03 0s 6 1.84500819e+02 1.84499408e+02 7.01e-10 9.99e-16 8.60e-06 0s 7 1.84500000e+02 1.84500000e+02 1.95e-12 4.44e-16 9.25e-12 0s Barrier solved model in 7 iterations and 0.00 seconds Optimal objective 1.84500000e+02 Root relaxation: objective 1.845000e+02, 38 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 184.50000 0 2 199.00000 184.50000 7.29% - 0s H 0 0 185.0000000 184.50000 0.27% - 0s Explored 0 nodes (39 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.850000000000e+02, best bound 1.850000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 185 Solution: 1 x [52] 10 x [39] 9 x [30] 1 x [20] 10 x [6] 5 x [50, 51] 2 x [45] 5 x [4, 34] 6 x [54, 59] 3 x [35, 46] 8 x [5, 40] 2 x [11, 31] 4 x [11, 27] 7 x [1, 9] 1 x [2, 59] 1 x [2, 51] 2 x [43, 55] 1 x [38, 55] 6 x [43, 47] 3 x [24, 60] 1 x [17, 24] 10 x [23, 53] 9 x [14, 38] 9 x [12, 16] 1 x [25, 56] 2 x [36, 37] 5 x [29, 36] 4 x [28, 49] 9 x [13, 21] 2 x [15, 37] 5 x [15, 19] 9 x [3, 8] 8 x [7, 42] 2 x [26, 57] 1 x [44, 48] 1 x [18, 44] 3 x [18, 26] 6 x [10, 18] 1 x [25, 58] 1 x [41] 1 x [41, 41] 1 x [16, 33] 1 x [13, 32] 6 x [17, 22]