Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:46:40 2012 Optimize a model with 5683 rows, 9702 columns and 26262 nonzeros Presolve removed 33 rows and 3040 columns Presolve time: 0.13s Presolved: 5650 rows, 6662 columns, 23108 nonzeros Variable types: 0 continuous, 6662 integer (6662 binary) Found heuristic solution: objective 98.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 123 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 40 3.00000 2.00000 33.3% - 0s 0 0 infeasible 0 3.00000 2.00000 33.3% - 0s Explored 0 nodes (223 simplex iterations) in 0.16 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%