Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:23:55 2013 Optimize a model with 117569 rows, 7921 columns and 356445 nonzeros Presolve removed 6015 rows and 3984 columns Presolve time: 1.26s Presolved: 111554 rows, 3937 columns, 338528 nonzeros Variable types: 45 continuous, 3892 integer (3892 binary) Found heuristic solution: objective 184409.00000 Root relaxation: objective 1.268181e+05, 29418 iterations, 3.83 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 126818.062 0 17 184409.000 126818.062 31.2% - 5s H 0 0 126836.00000 126818.062 0.01% - 5s H 0 0 126833.00000 126818.062 0.01% - 5s H 0 0 126824.00000 126818.062 0.00% - 5s Explored 0 nodes (29488 simplex iterations) in 5.79 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.268240000000e+05, best bound 1.268190000000e+05, gap 0.0039%