Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:05:14 2013 Optimize a model with 436 rows, 4292 columns and 113374 nonzeros Presolve removed 22 rows and 60 columns Presolve time: 0.35s Presolved: 414 rows, 4232 columns, 112592 nonzeros Variable types: 0 continuous, 4232 integer (4232 binary) Found heuristic solution: objective 2025.0000000 Found heuristic solution: objective 1801.0000000 Root relaxation: objective 1.477000e+03, 505 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 1477.0000000 1477.00000 0.0% - 0s Explored 0 nodes (505 simplex iterations) in 0.41 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.477000000000e+03, best bound 1.477000000000e+03, gap 0.0%