Gurobi 5.0.1 (linux64) logging started Mon Feb 4 17:07:29 2013 Optimize a model with 1431 rows, 39497 columns and 1725961 nonzeros Presolve removed 23 rows and 102 columns Presolve time: 5.09s Presolved: 1408 rows, 39395 columns, 1722431 nonzeros Variable types: 0 continuous, 39395 integer (39395 binary) Found heuristic solution: objective 19676.000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 8728 1.3000441e+04 4.693514e+02 0.000000e+00 5s 9631 1.3015000e+04 0.000000e+00 0.000000e+00 6s Root relaxation: objective 1.301500e+04, 9631 iterations, 6.39 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 13015.000000 13015.0000 0.0% - 11s Explored 0 nodes (9631 simplex iterations) in 11.82 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.301500000000e+04, best bound 1.301500000000e+04, gap 0.0%