Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:52:50 2012 Optimize a model with 29519 rows, 32580 columns and 120238 nonzeros Presolve removed 362 rows and 2 columns Presolve time: 0.71s Presolved: 29337 rows, 32578 columns, 151414 nonzeros Variable types: 0 continuous, 32578 integer (32578 binary) Found heuristic solution: objective 180.0000000 Root relaxation: objective 3.000000e+00, 17859 iterations, 2.54 seconds Total elapsed time = 11.43s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 120 180.00000 3.00000 98.3% - 12s H 0 0 3.0000000 3.00000 0.0% - 12s Explored 0 nodes (49550 simplex iterations) in 12.40 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%