Build (method = -2) #dp: 298 Step-3' Graph: 37 vertices and 151 arcs (0.00s) Step-4' Graph: 25 vertices and 127 arcs (0.00s) #V4/#V3 = 0.68 #A4/#A3 = 0.84 Ready! (0.00s) Optimize a model with 45 rows, 128 columns and 338 nonzeros Presolve removed 15 rows and 24 columns Presolve time: 0.00s Presolved: 30 rows, 104 columns, 281 nonzeros Variable types: 0 continuous, 104 integer (11 binary) Found heuristic solution: objective 193.0000000 Found heuristic solution: objective 160.0000000 Found heuristic solution: objective 149.0000000 Optimize a model with 30 rows, 104 columns and 281 nonzeros Presolved: 30 rows, 104 columns, 281 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.400e+02 Factor NZ : 3.550e+02 Factor Ops : 5.055e+03 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.74198439e+03 -1.35223870e+03 3.51e+03 1.99e-01 6.44e+01 0s 1 4.93427001e+02 -5.85717107e+02 5.91e+02 6.66e-16 1.19e+01 0s 2 1.69075941e+02 -9.51746635e+01 2.44e+01 5.00e-16 1.39e+00 0s 3 1.24623631e+02 6.38403519e+01 2.01e+00 2.78e-16 2.86e-01 0s 4 1.08087685e+02 9.20632474e+01 2.54e-01 3.33e-16 7.42e-02 0s 5 1.04561516e+02 1.00943458e+02 7.76e-02 2.22e-16 1.67e-02 0s 6 1.03758415e+02 1.03515422e+02 8.94e-03 3.42e-16 1.12e-03 0s 7 1.03666789e+02 1.03666385e+02 9.03e-06 3.49e-16 1.86e-06 0s 8 1.03666667e+02 1.03666666e+02 3.55e-14 3.34e-16 1.86e-09 0s 9 1.03666667e+02 1.03666667e+02 9.95e-14 3.33e-16 3.27e-15 0s Barrier solved model in 9 iterations and 0.00 seconds Optimal objective 1.03666667e+02 Root relaxation: objective 1.036667e+02, 44 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 103.66667 0 8 149.00000 103.66667 30.4% - 0s H 0 0 104.0000000 103.66667 0.32% - 0s Explored 0 nodes (49 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.040000000000e+02, best bound 1.040000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.01 seconds Total run time: 0.01 seconds Objective: 104 Solution: 21 x [8] 1 x [8, 10] 10 x [11, 13] 10 x [6, 11] 4 x [2, 20] 10 x [16, 20] 4 x [5, 7] 1 x [15, 19] 1 x [7, 15] 2 x [1, 18] 6 x [3, 18] 5 x [9, 14] 3 x [6, 6, 14] 3 x [4, 17] 11 x [2, 4] 6 x [4, 6, 13] 2 x [7, 12, 18] 3 x [7, 16, 18] 1 x [7, 18]