Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:00:48 2013 Optimize a model with 348 rows, 1489 columns and 58811 nonzeros Presolve removed 68 rows and 373 columns Presolve time: 0.65s Presolved: 280 rows, 1116 columns, 48054 nonzeros Variable types: 0 continuous, 1116 integer (1116 binary) Found heuristic solution: objective 1133.0000000 Found heuristic solution: objective 926.0000000 Root relaxation: objective 7.640000e+02, 169 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 764.0000000 764.00000 0.0% - 0s Explored 0 nodes (169 simplex iterations) in 0.66 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.640000000000e+02, best bound 7.640000000000e+02, gap 0.0%