Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:14:46 2012 Optimize a model with 2949 rows, 2550 columns and 11148 nonzeros Presolve removed 5 rows and 152 columns Presolve time: 0.11s Presolved: 2944 rows, 2398 columns, 10880 nonzeros Variable types: 0 continuous, 2398 integer (2398 binary) Found heuristic solution: objective 50.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 105 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 90 3.00000 2.00000 33.3% - 0s Explored 0 nodes (179 simplex iterations) in 0.13 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%