Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:01:23 2013 Optimize a model with 478 rows, 3516 columns and 145947 nonzeros Presolve removed 64 rows and 258 columns Presolve time: 0.98s Presolved: 414 rows, 3258 columns, 133553 nonzeros Variable types: 0 continuous, 3258 integer (3258 binary) Found heuristic solution: objective 2366.0000000 Root relaxation: objective 1.467000e+03, 407 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 1467.0000000 1467.00000 0.0% - 1s Explored 0 nodes (407 simplex iterations) in 1.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.467000000000e+03, best bound 1.467000000000e+03, gap 0.0%