Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:18:39 2012 Optimize a model with 24191 rows, 28392 columns and 100126 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.53s Presolved: 24357 rows, 28390 columns, 128062 nonzeros Variable types: 0 continuous, 28390 integer (28390 binary) Found heuristic solution: objective 168.0000000 Root relaxation: objective 2.000000e+00, 17602 iterations, 1.08 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 232 168.00000 2.00000 98.8% - 3s H 0 0 143.0000000 2.00000 98.6% - 3s H 0 0 4.0000000 2.00000 50.0% - 3s H 0 0 3.0000000 2.00000 33.3% - 3s 0 0 infeasible 0 3.00000 2.00000 33.3% - 3s Cutting planes: Gomory: 1 Zero half: 16 Explored 0 nodes (54171 simplex iterations) in 3.54 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%