Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:51:38 2012 Optimize a model with 15581 rows, 21756 columns and 67765 nonzeros Presolve removed 590 rows and 2 columns Presolve time: 0.29s Presolved: 15138 rows, 21754 columns, 87700 nonzeros Variable types: 0 continuous, 21754 integer (21754 binary) Found heuristic solution: objective 147.0000000 Root relaxation: objective 3.000000e+00, 10830 iterations, 0.75 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 264 147.00000 3.00000 98.0% - 4s H 0 0 3.0000000 3.00000 0.0% - 4s Explored 0 nodes (29905 simplex iterations) in 4.55 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%