Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:12:18 2013 Optimize a model with 825 rows, 10754 columns and 512663 nonzeros Presolve removed 43 rows and 204 columns Presolve time: 4.93s Presolved: 782 rows, 10550 columns, 503244 nonzeros Variable types: 0 continuous, 10550 integer (10550 binary) Found heuristic solution: objective 6249.0000000 Root relaxation: objective 4.181000e+03, 1917 iterations, 0.37 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 4181.0000000 4181.00000 0.0% - 5s Explored 0 nodes (1917 simplex iterations) in 5.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.181000000000e+03, best bound 4.181000000000e+03, gap 0.0%