Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:24:53 2012 Optimize a model with 27359 rows, 29412 columns and 110635 nonzeros Presolve removed 366 rows and 3764 columns Presolve time: 0.70s Presolved: 26993 rows, 25648 columns, 105702 nonzeros Variable types: 0 continuous, 25648 integer (25648 binary) Found heuristic solution: objective 171.0000000 Root relaxation: objective 3.000000e+00, 19438 iterations, 2.20 seconds Total elapsed time = 9.10s Total elapsed time = 10.98s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 38 171.00000 3.00000 98.2% - 12s H 0 0 3.0000000 3.00000 0.0% - 12s Explored 0 nodes (60669 simplex iterations) in 12.49 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%