Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:42:54 2012 Optimize a model with 28673 rows, 31506 columns and 116641 nonzeros Presolve removed 381 rows and 4427 columns Presolve time: 0.65s Presolved: 28292 rows, 27079 columns, 111011 nonzeros Variable types: 0 continuous, 27079 integer (27079 binary) Found heuristic solution: objective 177.0000000 Root relaxation: objective 3.000000e+00, 21637 iterations, 2.92 seconds Total elapsed time = 14.84s Total elapsed time = 15.39s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 39 177.00000 3.00000 98.3% - 16s H 0 0 3.0000000 3.00000 0.0% - 16s Explored 0 nodes (56203 simplex iterations) in 16.15 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%