Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:14:33 2012 Optimize a model with 39995 rows, 39402 columns and 158398 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.92s Presolved: 40191 rows, 39400 columns, 197198 nonzeros Variable types: 0 continuous, 39400 integer (39400 binary) Found heuristic solution: objective 198.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 419 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 320 3.00000 2.00000 33.3% - 1s 0 0 infeasible 0 3.00000 2.00000 33.3% - 1s Explored 0 nodes (765 simplex iterations) in 1.17 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%