Gurobi 5.0.1 (linux64) logging started Fri Nov 16 18:04:13 2012 Optimize a model with 8778 rows, 13110 columns and 38988 nonzeros Presolve removed 23 rows and 2622 columns Presolve time: 0.16s Presolved: 8755 rows, 10488 columns, 36366 nonzeros Variable types: 0 continuous, 10488 integer (10488 binary) Found heuristic solution: objective 37.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 7385 iterations, 0.17 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 cutoff 0 2.00000 1.00000 50.0% - 0s Explored 0 nodes (7385 simplex iterations) in 0.35 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%