Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:01:50 2013 Optimize a model with 784 rows, 6616 columns and 456598 nonzeros Presolve removed 1 rows and 1 columns Presolve time: 0.51s Presolved: 783 rows, 6615 columns, 456502 nonzeros Variable types: 0 continuous, 6615 integer (6615 binary) Found heuristic solution: objective 3838.0000000 Root relaxation: objective 3.348000e+03, 1297 iterations, 0.20 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 3348.0000000 3348.00000 0.0% - 0s Explored 0 nodes (1297 simplex iterations) in 0.79 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.348000000000e+03, best bound 3.348000000000e+03, gap 0.0%