Gurobi 5.0.1 (linux64) logging started Sat Nov 17 05:39:14 2012 Optimize a model with 65264 rows, 52670 columns and 247318 nonzeros Presolve removed 1390 rows and 3208 columns Presolve time: 4.91s Presolved: 63874 rows, 49462 columns, 240119 nonzeros Variable types: 0 continuous, 49462 integer (49462 binary) Found heuristic solution: objective 229.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 34997 3.0000885e+00 2.457143e+01 0.000000e+00 5s 39523 3.0000924e+00 3.194735e+01 0.000000e+00 10s 43027 3.0000960e+00 2.507374e+01 0.000000e+00 15s 46531 3.0000997e+00 1.055000e+02 0.000000e+00 20s 50035 3.0001030e+00 6.383387e+00 0.000000e+00 25s 53393 3.0001068e+00 4.913946e+00 0.000000e+00 30s 56751 3.0001105e+00 2.919355e-01 0.000000e+00 35s 56894 3.0000000e+00 0.000000e+00 0.000000e+00 35s Root relaxation: objective 3.000000e+00, 56894 iterations, 35.35 seconds Total elapsed time = 95.86s Total elapsed time = 106.11s Total elapsed time = 111.09s Total elapsed time = 117.21s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 160 229.00000 3.00000 98.7% - 117s H 0 0 3.0000000 3.00000 0.0% - 117s Explored 0 nodes (175951 simplex iterations) in 117.67 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%