Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:40:53 2013 Optimize a model with 1367 rows, 32262 columns and 1566314 nonzeros Presolve removed 22 rows and 48 columns (presolve time = 5s) ... Presolve removed 22 rows and 48 columns Presolve time: 6.12s Presolved: 1345 rows, 32214 columns, 1565290 nonzeros Variable types: 0 continuous, 32214 integer (32214 binary) Found heuristic solution: objective 17898.000000 Root relaxation: objective 1.241600e+04, 7543 iterations, 4.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 12416.000000 12416.0000 0.0% - 10s Explored 0 nodes (7543 simplex iterations) in 10.42 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.241600000000e+04, best bound 1.241600000000e+04, gap 0.0%