Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:16:25 2013 Optimize a model with 98854 rows, 7056 columns and 299880 nonzeros Presolve removed 5734 rows and 3562 columns Presolve time: 0.89s Presolved: 93120 rows, 3494 columns, 282195 nonzeros Variable types: 35 continuous, 3459 integer (3459 binary) Found heuristic solution: objective 180717.00000 Root relaxation: objective 1.407779e+05, 30079 iterations, 3.77 seconds Total elapsed time = 5.05s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 140777.941 0 12 180717.000 140777.941 22.1% - 5s H 0 0 140804.00000 140777.941 0.02% - 5s H 0 0 140802.00000 140777.941 0.02% - 5s H 0 0 140790.00000 140777.941 0.01% - 5s Explored 0 nodes (30192 simplex iterations) in 5.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.407900000000e+05, best bound 1.407780000000e+05, gap 0.0085%