Build (method = -2) #dp: 1270 Step-3' Graph: 37 vertices and 222 arcs (0.00s) Step-4' Graph: 25 vertices and 198 arcs (0.01s) #V4/#V3 = 0.68 #A4/#A3 = 0.89 Ready! (0.01s) Optimize a model with 65 rows, 199 columns and 553 nonzeros Presolve removed 20 rows and 21 columns Presolve time: 0.00s Presolved: 45 rows, 178 columns, 493 nonzeros Variable types: 0 continuous, 178 integer (0 binary) Found heuristic solution: objective 720.0000000 Found heuristic solution: objective 479.0000000 Optimize a model with 45 rows, 178 columns and 493 nonzeros Presolved: 45 rows, 178 columns, 493 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.710e+02 Factor NZ : 6.990e+02 Factor Ops : 1.325e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 4.06203741e+03 -5.59244980e+03 5.25e+03 2.22e-16 8.85e+01 0s 1 1.11560795e+03 -1.78799358e+03 5.66e+02 4.44e-16 1.34e+01 0s 2 5.11383948e+02 -3.78233145e+02 3.41e+01 6.22e-15 2.56e+00 0s 3 3.77320629e+02 7.77391583e+01 2.71e+00 2.00e-15 8.00e-01 0s 4 3.30309522e+02 2.33628107e+02 4.24e-01 5.55e-16 2.56e-01 0s 5 3.12892332e+02 2.75183997e+02 1.35e-01 3.33e-16 9.99e-02 0s 6 3.09473897e+02 3.04530465e+02 4.77e-02 2.22e-16 1.31e-02 0s 7 3.08010187e+02 3.07950011e+02 9.16e-05 4.44e-16 1.59e-04 0s 8 3.08000010e+02 3.07999950e+02 3.78e-13 3.33e-16 1.59e-07 0s 9 3.08000000e+02 3.08000000e+02 2.37e-12 3.33e-16 1.61e-13 0s Barrier solved model in 9 iterations and 0.00 seconds Optimal objective 3.08000000e+02 Root relaxation: objective 3.080000e+02, 118 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 308.0000000 308.00000 0.0% - 0s Explored 0 nodes (118 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 3.080000000000e+02, best bound 3.080000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.01 seconds Total run time: 0.02 seconds Objective: 308 Solution: 11 x [6, 38] 8 x [1, 30, 34] 16 x [22] 2 x [22, 23] 17 x [21, 21, 22] 2 x [40] 2 x [5, 40] 2 x [1, 5, 40] 11 x [5, 34, 39] 24 x [36, 39] 2 x [25] 26 x [17, 24] 2 x [6, 11, 24] 7 x [4, 11, 14] 15 x [4, 5, 11] 2 x [10] 12 x [3, 10] 3 x [24, 27] 3 x [16, 24] 6 x [28, 33] 1 x [24, 33] 8 x [4, 12, 33] 11 x [7, 31] 2 x [3, 7] 3 x [3, 4, 7] 6 x [6, 7] 15 x [9, 29, 32] 5 x [6, 29] 18 x [3, 26, 37] 9 x [8, 20, 26] 35 x [18, 19] 1 x [15, 35] 2 x [15, 20, 20] 1 x [2] 7 x [2, 13] 11 x [2, 35, 37]