Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:06:48 2012 Optimize a model with 1880 rows, 380 columns and 5926 nonzeros Presolve removed 1123 rows and 2 columns Presolve time: 0.05s Presolved: 776 rows, 378 columns, 4516 nonzeros Variable types: 0 continuous, 378 integer (378 binary) Found heuristic solution: objective 19.0000000 Root relaxation: objective 6.000000e+00, 965 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 6.0000000 6.00000 0.0% - 0s Explored 0 nodes (2139 simplex iterations) in 0.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%