Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:16:09 2012 Optimize a model with 4367 rows, 702 columns and 13674 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.07s Presolved: 4365 rows, 700 columns, 19806 nonzeros Variable types: 0 continuous, 700 integer (700 binary) Found heuristic solution: objective 26.0000000 Root relaxation: objective 4.162162e+00, 4473 iterations, 0.23 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 4.16216 0 386 26.00000 4.16216 84.0% - 0s 0 0 7.00000 0 69 26.00000 7.00000 73.1% - 0s H 0 0 23.0000000 7.00000 69.6% - 0s H 0 0 10.0000000 7.00000 30.0% - 0s H 0 0 8.0000000 7.00000 12.5% - 0s 0 0 7.00000 0 10 8.00000 7.00000 12.5% - 0s 0 0 7.00000 0 10 8.00000 7.00000 12.5% - 1s H 0 0 7.0000000 7.00000 0.0% - 1s Explored 0 nodes (8185 simplex iterations) in 1.06 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%