Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:27:39 2013 Optimize a model with 1240 rows, 25839 columns and 1279038 nonzeros Presolve removed 57 rows and 399 columns Presolve time: 4.70s Presolved: 1183 rows, 25440 columns, 1254975 nonzeros Variable types: 0 continuous, 25440 integer (25440 binary) Found heuristic solution: objective 12621.000000 Root relaxation: objective 9.326000e+03, 5250 iterations, 2.35 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 9326.0000000 9326.00000 0.0% - 7s Explored 0 nodes (5250 simplex iterations) in 7.25 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.326000000000e+03, best bound 9.326000000000e+03, gap 0.0%