Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:39:20 2012 Optimize a model with 37439 rows, 37056 columns and 148414 nonzeros Presolve removed 386 rows and 2 columns Presolve time: 1.00s Presolved: 37245 rows, 37054 columns, 183932 nonzeros Variable types: 0 continuous, 37054 integer (37054 binary) Found heuristic solution: objective 192.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 27678 3.0000784e+00 2.381613e+01 0.000000e+00 5s 33313 3.0000847e+00 2.431982e+01 0.000000e+00 10s 34752 3.0000000e+00 0.000000e+00 0.000000e+00 11s Root relaxation: objective 3.000000e+00, 34752 iterations, 11.47 seconds Total elapsed time = 29.01s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 3.0000000 3.00000 0.0% - 29s Explored 0 nodes (68858 simplex iterations) in 29.43 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%