Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:07:15 2013 Optimize a model with 2014 rows, 2012 columns and 8021 nonzeros Presolve removed 994 rows and 993 columns Presolve time: 0.10s Presolved: 1020 rows, 1019 columns, 3056 nonzeros Variable types: 510 continuous, 509 integer (509 binary) Found heuristic solution: objective 3432.7438354 Root relaxation: cutoff, 509 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 cutoff 0 3432.74384 3432.74384 0.0% - 0s Explored 0 nodes (509 simplex iterations) in 0.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.432743835411e+03, best bound 3.432743835411e+03, gap 0.0%