Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:10:01 2012 Optimize a model with 524 rows, 650 columns and 2098 nonzeros Presolve removed 10 rows and 202 columns Presolve time: 0.01s Presolved: 514 rows, 448 columns, 1856 nonzeros Variable types: 0 continuous, 448 integer (448 binary) Found heuristic solution: objective 25.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 36 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 34 3.00000 2.00000 33.3% - 0s 0 0 infeasible 0 3.00000 2.00000 33.3% - 0s Explored 0 nodes (64 simplex iterations) in 0.02 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%