Gurobi 5.0.1 (linux64) logging started Sat Nov 17 04:37:07 2012 Optimize a model with 65539 rows, 51302 columns and 246790 nonzeros Presolve removed 454 rows and 2 columns Presolve time: 4.83s Presolved: 65311 rows, 51300 columns, 296160 nonzeros Variable types: 0 continuous, 51300 integer (51300 binary) Found heuristic solution: objective 226.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 37157 3.0000923e+00 5.976538e+02 0.000000e+00 5s 41989 3.0001062e+00 1.940179e+02 0.000000e+00 10s 44782 3.0001083e+00 8.268699e+02 0.000000e+00 15s 47722 3.0001100e+00 5.588894e+01 0.000000e+00 20s 50515 3.0001117e+00 1.969053e+01 0.000000e+00 25s 53308 3.0001135e+00 2.520845e+01 0.000000e+00 30s 56101 3.0001152e+00 2.979233e+02 0.000000e+00 35s 58747 3.0001167e+00 1.893860e+01 0.000000e+00 40s 61393 3.0001183e+00 3.659950e+01 0.000000e+00 45s 63892 3.0001196e+00 8.381686e+00 0.000000e+00 50s 66391 3.0001210e+00 1.710803e+01 0.000000e+00 55s 68743 3.0001215e+00 3.790619e-01 0.000000e+00 60s 68907 3.0000000e+00 0.000000e+00 0.000000e+00 60s Root relaxation: objective 3.000000e+00, 68907 iterations, 60.36 seconds Total elapsed time = 115.64s 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% - 120s Explored 0 nodes (148241 simplex iterations) in 120.84 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%