Gurobi 5.0.1 (linux64) logging started Fri Nov 16 18:56:22 2012 Optimize a model with 10749 rows, 15750 columns and 47373 nonzeros Presolve removed 32 rows and 3752 columns Presolve time: 0.18s Presolved: 10717 rows, 11998 columns, 43451 nonzeros Variable types: 0 continuous, 11998 integer (11998 binary) Found heuristic solution: objective 125.0000000 Root relaxation: objective 2.000000e+00, 6844 iterations, 0.20 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 84 125.00000 2.00000 98.4% - 0s H 0 0 102.0000000 2.00000 98.0% - 0s H 0 0 4.0000000 2.00000 50.0% - 0s 0 0 2.40000 0 1657 4.00000 2.40000 40.0% - 1s H 0 0 3.0000000 2.40000 20.0% - 1s Cutting planes: Gomory: 1 Zero half: 3 Explored 0 nodes (25263 simplex iterations) in 1.74 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%