Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:50:59 2012 Optimize a model with 6539 rows, 930 columns and 20398 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.08s Presolved: 6537 rows, 928 columns, 23616 nonzeros Variable types: 0 continuous, 928 integer (928 binary) Found heuristic solution: objective 29.0000000 Root relaxation: objective 3.590909e+00, 6804 iterations, 0.44 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.59091 0 736 29.00000 3.59091 87.6% - 1s H 0 0 27.0000000 3.59091 86.7% - 1s 0 0 7.00000 0 52 27.00000 7.00000 74.1% - 1s H 0 0 11.0000000 7.00000 36.4% - 1s H 0 0 8.0000000 7.00000 12.5% - 1s 0 0 7.00000 0 36 8.00000 7.00000 12.5% - 1s * 0 0 0 7.0000000 7.00000 0.0% - 1s Explored 0 nodes (12148 simplex iterations) in 1.90 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%