Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:43:12 2012 Optimize a model with 27788 rows, 31506 columns and 113986 nonzeros Presolve removed 384 rows and 4958 columns Presolve time: 0.68s Presolved: 27404 rows, 26548 columns, 107835 nonzeros Variable types: 0 continuous, 26548 integer (26548 binary) Found heuristic solution: objective 177.0000000 Root relaxation: objective 3.000000e+00, 19134 iterations, 2.75 seconds Total elapsed time = 14.44s Total elapsed time = 15.74s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 48 177.00000 3.00000 98.3% - 17s H 0 0 3.0000000 3.00000 0.0% - 17s Explored 0 nodes (57714 simplex iterations) in 17.52 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%