Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:14:29 2012 Optimize a model with 2651 rows, 1560 columns and 9319 nonzeros Presolve removed 435 rows and 158 columns Presolve time: 0.11s Presolved: 2216 rows, 1402 columns, 8074 nonzeros Variable types: 0 continuous, 1402 integer (1402 binary) Found heuristic solution: objective 39.0000000 Root relaxation: objective 3.000000e+00, 1758 iterations, 0.07 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 24 39.00000 3.00000 92.3% - 0s H 0 0 3.0000000 3.00000 0.0% - 0s Explored 0 nodes (5606 simplex iterations) in 0.37 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%