Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:00:58 2013 Optimize a model with 412 rows, 2313 columns and 98877 nonzeros Presolve removed 44 rows and 123 columns Presolve time: 0.51s Presolved: 368 rows, 2190 columns, 94889 nonzeros Variable types: 0 continuous, 2190 integer (2190 binary) Found heuristic solution: objective 1495.0000000 Found heuristic solution: objective 1361.0000000 Root relaxation: objective 1.021000e+03, 266 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 1021.0000000 1021.00000 0.0% - 0s Explored 0 nodes (266 simplex iterations) in 0.54 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.021000000000e+03, best bound 1.021000000000e+03, gap 0.0%