Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:48 2012 Optimize a model with 75 rows, 74 columns and 259 nonzeros Presolve removed 0 rows and 5 columns Presolve time: 0.00s Presolved: 75 rows, 69 columns, 254 nonzeros Variable types: 0 continuous, 69 integer (68 binary) Found heuristic solution: objective 14.0000000 Root relaxation: objective 0.000000e+00, 44 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 31 14.00000 0.00000 100% - 0s H 0 0 12.0000000 0.00000 100% - 0s H 0 0 11.0000000 0.00000 100% - 0s H 0 0 6.0000000 0.00000 100% - 0s 0 0 0.40555 0 34 6.00000 0.40555 93.2% - 0s H 0 0 4.0000000 0.40555 89.9% - 0s 0 0 0.94392 0 36 4.00000 0.94392 76.4% - 0s 0 0 0.94392 0 36 4.00000 0.94392 76.4% - 0s 0 2 0.98700 0 36 4.00000 0.98700 75.3% - 0s * 6 2 3 3.0000000 1.65551 44.8% 19.2 0s Cutting planes: Gomory: 3 Explored 9 nodes (337 simplex iterations) in 0.03 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%