Gurobi 5.0.1 (linux64) logging started Sat Nov 17 03:23:58 2012 Optimize a model with 62825 rows, 49506 columns and 236872 nonzeros Presolve removed 446 rows and 2 columns Presolve time: 4.56s Presolved: 62601 rows, 49504 columns, 284484 nonzeros Variable types: 0 continuous, 49504 integer (49504 binary) Found heuristic solution: objective 222.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 35570 3.0000626e+00 6.262500e+01 0.000000e+00 5s 44181 3.0000961e+00 2.135449e+02 0.000000e+00 10s 47661 3.0000995e+00 1.361191e+02 0.000000e+00 15s 50996 3.0001016e+00 5.567877e+01 0.000000e+00 20s 54476 3.0001040e+00 2.034074e+01 0.000000e+00 25s 57666 3.0001059e+00 6.206022e+01 0.000000e+00 30s 60856 3.0001080e+00 2.580908e+01 0.000000e+00 35s 63901 3.0001102e+00 1.632326e+01 0.000000e+00 40s 66946 3.0001118e+00 4.068325e+01 0.000000e+00 45s 69556 3.0001130e+00 9.483026e+01 0.000000e+00 50s 72166 3.0001138e+00 8.840572e+01 0.000000e+00 55s 74486 3.0001147e+00 1.433099e+01 0.000000e+00 60s 76806 3.0001163e+00 4.651310e+01 0.000000e+00 65s 78884 3.0000000e+00 0.000000e+00 0.000000e+00 69s Root relaxation: objective 3.000000e+00, 78884 iterations, 69.30 seconds Total elapsed time = 124.19s Total elapsed time = 181.21s 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% - 185s Explored 0 nodes (210208 simplex iterations) in 185.29 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%