Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:07:20 2013 Optimize a model with 1014 rows, 3012 columns and 8021 nonzeros Presolve removed 358 rows and 1049 columns Presolve time: 0.07s Presolved: 656 rows, 1963 columns, 3926 nonzeros Variable types: 1309 continuous, 654 integer (654 binary) Found heuristic solution: objective 3502.0000000 Root relaxation: objective 3.501643e+03, 2 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3501.64313 0 1 3502.00000 3501.64313 0.01% - 0s Explored 0 nodes (2 simplex iterations) in 0.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.502000000001e+03, best bound 3.502000000001e+03, gap 0.0%