Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:06:26 2012 Optimize a model with 969 rows, 306 columns and 3145 nonzeros Presolve removed 510 rows and 0 columns Presolve time: 0.01s Presolved: 459 rows, 306 columns, 2142 nonzeros Variable types: 0 continuous, 306 integer (306 binary) Found heuristic solution: objective 11.0000000 Root relaxation: objective 4.000000e+00, 598 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 4.0000000 4.00000 0.0% - 0s Explored 0 nodes (598 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%