Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:23:10 2013 Optimize a model with 113652 rows, 7744 columns and 344608 nonzeros Presolve removed 7913 rows and 3927 columns Presolve time: 0.99s Presolved: 105739 rows, 3817 columns, 320361 nonzeros Variable types: 37 continuous, 3780 integer (3780 binary) Found heuristic solution: objective 152281.00000 Root relaxation: objective 1.097529e+05, 25183 iterations, 3.26 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 109752.867 0 17 152281.000 109752.867 27.9% - 5s H 0 0 109764.00000 109752.867 0.01% - 5s H 0 0 109761.00000 109752.867 0.01% - 5s Explored 0 nodes (25549 simplex iterations) in 5.18 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.097610000000e+05, best bound 1.097530000000e+05, gap 0.0073%