Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:48:35 2012 Optimize a model with 40739 rows, 37830 columns and 159078 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.95s Presolved: 40931 rows, 37828 columns, 196294 nonzeros Variable types: 0 continuous, 37828 integer (37828 binary) Found heuristic solution: objective 194.0000000 Root relaxation: objective 2.000000e+00, 23390 iterations, 1.75 seconds Total elapsed time = 5.01s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 320 194.00000 2.00000 99.0% - 5s H 0 0 4.0000000 2.00000 50.0% - 5s H 0 0 3.0000000 2.00000 33.3% - 5s 0 0 infeasible 0 3.00000 2.00000 33.3% - 6s Cutting planes: Gomory: 2 Clique: 2 Zero half: 32 Explored 0 nodes (75874 simplex iterations) in 6.11 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%