Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:22:53 2012 Optimize a model with 9173 rows, 4422 columns and 31612 nonzeros Presolve removed 795 rows and 68 columns Presolve time: 0.34s Presolved: 8378 rows, 4354 columns, 29378 nonzeros Variable types: 0 continuous, 4354 integer (4354 binary) Found heuristic solution: objective 66.0000000 Root relaxation: objective 3.000000e+00, 5932 iterations, 0.69 seconds Total elapsed time = 5.20s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 98 66.00000 3.00000 95.5% - 6s H 0 0 5.0000000 3.00000 40.0% - 6s H 0 0 4.0000000 3.00000 25.0% - 6s H 0 0 3.0000000 3.00000 0.0% - 6s Explored 0 nodes (38354 simplex iterations) in 6.73 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%