Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:04:07 2012 Optimize a model with 39990 rows, 39006 columns and 157992 nonzeros Presolve removed 790 rows and 2 columns Presolve time: 0.99s Presolved: 39397 rows, 39004 columns, 194433 nonzeros Variable types: 0 continuous, 39004 integer (39004 binary) Found heuristic solution: objective 197.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 24891 3.0000746e+00 2.735075e+00 0.000000e+00 5s 25864 3.0000000e+00 0.000000e+00 0.000000e+00 6s Root relaxation: objective 3.000000e+00, 25864 iterations, 5.64 seconds Total elapsed time = 18.34s Total elapsed time = 20.16s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 38 197.00000 3.00000 98.5% - 20s H 0 0 3.0000000 3.00000 0.0% - 20s Explored 0 nodes (75233 simplex iterations) in 20.68 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%