Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:36:52 2012 Optimize a model with 283 rows, 309 columns and 1014 nonzeros Presolve removed 0 rows and 28 columns Presolve time: 0.00s Presolved: 283 rows, 281 columns, 986 nonzeros Variable types: 0 continuous, 281 integer (280 binary) Found heuristic solution: objective 43.0000000 Root relaxation: objective 0.000000e+00, 196 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 114 43.00000 0.00000 100% - 0s H 0 0 38.0000000 0.00000 100% - 0s H 0 0 32.0000000 0.00000 100% - 0s H 0 0 28.0000000 0.00000 100% - 0s 0 0 0.12121 0 116 28.00000 0.12121 100% - 0s H 0 0 22.0000000 0.12121 99.4% - 0s H 0 0 20.0000000 0.12121 99.4% - 0s 0 0 0.70685 0 119 20.00000 0.70685 96.5% - 0s H 0 0 14.0000000 0.70685 95.0% - 0s 0 0 0.70685 0 119 14.00000 0.70685 95.0% - 0s H 0 0 7.0000000 0.70685 89.9% - 0s H 0 0 5.0000000 0.70685 85.9% - 0s 0 2 0.72195 0 119 5.00000 0.72195 85.6% - 0s H 27 21 4.0000000 1.00105 75.0% 26.0 0s * 40 8 9 3.0000000 1.06250 64.6% 33.0 0s Cutting planes: Gomory: 3 Mod-K: 1 Explored 54 nodes (2469 simplex iterations) in 0.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%