Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:54:25 2012 Optimize a model with 6759 rows, 10920 columns and 30678 nonzeros Presolve removed 33 rows and 3226 columns Presolve time: 0.13s Presolved: 6726 rows, 7694 columns, 27324 nonzeros Variable types: 0 continuous, 7694 integer (7694 binary) Found heuristic solution: objective 104.0000000 Root relaxation: objective 2.000000e+00, 4574 iterations, 0.14 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 82 104.00000 2.00000 98.1% - 0s H 0 0 39.0000000 2.00000 94.9% - 0s H 0 0 3.0000000 2.00000 33.3% - 0s 0 0 infeasible 0 3.00000 2.00000 33.3% - 0s Explored 0 nodes (13044 simplex iterations) in 0.49 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%