Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:40:49 2012 Optimize a model with 28159 rows, 31152 columns and 114750 nonzeros Presolve removed 354 rows and 2 columns Presolve time: 0.71s Presolved: 27981 rows, 31150 columns, 144530 nonzeros Variable types: 0 continuous, 31150 integer (31150 binary) Found heuristic solution: objective 176.0000000 Root relaxation: objective 3.000000e+00, 18665 iterations, 2.56 seconds Total elapsed time = 10.24s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 221 176.00000 3.00000 98.3% - 13s H 0 0 3.0000000 3.00000 0.0% - 14s Explored 0 nodes (53870 simplex iterations) in 14.07 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%