Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:16:13 2013 Optimize a model with 98854 rows, 7056 columns and 299880 nonzeros Presolve removed 9723 rows and 3617 columns Presolve time: 0.98s Presolved: 89131 rows, 3439 columns, 269899 nonzeros Variable types: 31 continuous, 3408 integer (3408 binary) Found heuristic solution: objective 176344.00000 Root relaxation: objective 1.462462e+05, 17099 iterations, 2.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 146246.158 0 8 176344.000 146246.158 17.1% - 3s H 0 0 146256.00000 146246.158 0.01% - 3s Explored 0 nodes (17173 simplex iterations) in 3.47 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.462560000000e+05, best bound 1.462470000000e+05, gap 0.0062%