Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:10:09 2012 Optimize a model with 667 rows, 870 columns and 2755 nonzeros Presolve removed 123 rows and 203 columns Presolve time: 0.01s Presolved: 544 rows, 667 columns, 2291 nonzeros Variable types: 0 continuous, 667 integer (667 binary) Found heuristic solution: objective 11.0000000 Root relaxation: objective 3.000000e+00, 658 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 3.0000000 3.00000 0.0% - 0s Explored 0 nodes (658 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%