Gurobi 5.0.1 (linux64) logging started Fri Nov 16 18:19:26 2012 Optimize a model with 7139 rows, 14280 columns and 35103 nonzeros Presolve removed 48 rows and 5476 columns Presolve time: 0.14s Presolved: 7091 rows, 8804 columns, 29509 nonzeros Variable types: 0 continuous, 8804 integer (8804 binary) Found heuristic solution: objective 119.0000000 Root relaxation: objective 2.000000e+00, 4571 iterations, 0.09 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 30 119.00000 2.00000 98.3% - 0s H 0 0 25.0000000 2.00000 92.0% - 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 (15544 simplex iterations) in 0.47 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%