Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:52:50 2013 Optimize a model with 7072 rows, 6812 columns and 27092 nonzeros Presolve removed 26 rows and 0 columns Presolve time: 0.03s Presolved: 7046 rows, 6812 columns, 27066 nonzeros Variable types: 6786 continuous, 26 integer (26 binary) Root relaxation: objective 2.318775e+04, 778 iterations, 0.06 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 23187.7458 0 19 - 23187.7458 - - 0s H 0 0 25367.000000 23187.7458 8.59% - 0s 0 0 24814.4333 0 1 25367.0000 24814.4333 2.18% - 0s H 0 0 25067.188889 24814.4333 1.01% - 0s H 0 0 25024.000000 24814.4333 0.84% - 0s H 0 0 24962.000000 24814.4333 0.59% - 0s 0 2 24816.0000 0 1 24962.0000 24816.0000 0.58% - 0s * 1 1 1 24881.000000 24881.0000 0.0% 60.0 0s Cutting planes: Gomory: 1 Implied bound: 17 Explored 2 nodes (1088 simplex iterations) in 0.35 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.488100000000e+04, best bound 2.488100000000e+04, gap 0.0%