Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:52:15 2013 Optimize a model with 253 rows, 5313 columns and 10603 nonzeros Presolve time: 0.01s Presolved: 253 rows, 5313 columns, 10603 nonzeros Variable types: 5290 continuous, 23 integer (23 binary) Root relaxation: objective 2.469015e+04, 310 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 24690.1537 0 3 - 24690.1537 - - 0s H 0 0 24911.000000 24690.1537 0.89% - 0s 0 0 24767.8543 0 3 24911.0000 24767.8543 0.57% - 0s 0 0 24768.2838 0 3 24911.0000 24768.2838 0.57% - 0s H 0 0 24794.000000 24768.2838 0.10% - 0s 0 0 24768.2838 0 3 24794.0000 24768.2838 0.10% - 0s 0 0 24768.3608 0 3 24794.0000 24768.3608 0.10% - 0s 0 0 24768.6467 0 3 24794.0000 24768.6467 0.10% - 0s 0 0 24779.5051 0 2 24794.0000 24779.5051 0.06% - 0s H 0 0 24793.000000 24779.5051 0.05% - 0s 0 0 24779.5051 0 3 24793.0000 24779.5051 0.05% - 0s 0 0 24779.5051 0 3 24793.0000 24779.5051 0.05% - 0s 0 0 24784.6667 0 3 24793.0000 24784.6667 0.03% - 0s 0 0 24784.7895 0 3 24793.0000 24784.7895 0.03% - 0s 0 0 24784.8750 0 3 24793.0000 24784.8750 0.03% - 0s 0 0 24784.8750 0 3 24793.0000 24784.8750 0.03% - 0s Cutting planes: Implied bound: 28 Flow cover: 2 Explored 0 nodes (722 simplex iterations) in 0.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.479300000000e+04, best bound 2.479300000000e+04, gap 0.0%