Gurobi 5.0.1 (linux64) logging started Sat Nov 17 00:04:51 2012 Optimize a model with 45304 rows, 42230 columns and 177118 nonzeros Presolve removed 431 rows and 3897 columns Presolve time: 1.11s Presolved: 44873 rows, 38333 columns, 171760 nonzeros Variable types: 0 continuous, 38333 integer (38333 binary) Found heuristic solution: objective 205.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 27334 3.0000848e+00 2.991027e+02 0.000000e+00 5s 33162 3.0000864e+00 9.202850e+00 0.000000e+00 10s 37874 3.0000903e+00 1.461440e+01 0.000000e+00 15s 40517 3.0000000e+00 0.000000e+00 0.000000e+00 18s Root relaxation: objective 3.000000e+00, 40517 iterations, 17.82 seconds Total elapsed time = 38.82s Total elapsed time = 45.27s 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% - 46s Explored 0 nodes (111689 simplex iterations) in 46.49 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%