Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:20:05 2013 Optimize a model with 1239 rows, 22264 columns and 1263416 nonzeros Presolve removed 16 rows and 11 columns (presolve time = 5s) ... Presolve removed 25 rows and 20 columns Presolve time: 9.86s Presolved: 1214 rows, 22244 columns, 1261176 nonzeros Variable types: 0 continuous, 22244 integer (22244 binary) Found heuristic solution: objective 11273.000000 Root relaxation: objective 9.298000e+03, 7140 iterations, 3.52 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 9298.0000000 9298.00000 0.0% - 13s Explored 0 nodes (7140 simplex iterations) in 13.60 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.298000000000e+03, best bound 9.298000000000e+03, gap 0.0%