Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:32:12 2012 Optimize a model with 38390 rows, 36672 columns and 150888 nonzeros Presolve removed 405 rows and 4013 columns Presolve time: 0.95s Presolved: 37985 rows, 32659 columns, 145524 nonzeros Variable types: 0 continuous, 32659 integer (32659 binary) Found heuristic solution: objective 191.0000000 Root relaxation: objective 3.000000e+00, 29983 iterations, 4.88 seconds Total elapsed time = 16.45s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 75 191.00000 3.00000 98.4% - 17s H 0 0 3.0000000 3.00000 0.0% - 17s Explored 0 nodes (72449 simplex iterations) in 17.95 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%