Gurobi 5.0.1 (linux64) logging started Sat Nov 17 04:15:29 2012 Optimize a model with 62999 rows, 50850 columns and 238723 nonzeros Presolve removed 1366 rows and 3152 columns Presolve time: 4.59s Presolved: 61633 rows, 47698 columns, 231650 nonzeros Variable types: 0 continuous, 47698 integer (47698 binary) Found heuristic solution: objective 225.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 32893 3.0000861e+00 3.689286e+01 0.000000e+00 5s 37501 3.0000903e+00 6.813725e+01 0.000000e+00 10s 40813 3.0000930e+00 4.218554e+01 0.000000e+00 15s 44125 3.0000957e+00 4.746441e+01 0.000000e+00 20s 47437 3.0000988e+00 2.803444e+02 0.000000e+00 25s 51037 3.0001031e+00 2.077870e+02 0.000000e+00 30s 54753 3.0001108e+00 3.155405e+01 0.000000e+00 35s 55984 3.0000000e+00 0.000000e+00 0.000000e+00 37s Root relaxation: objective 3.000000e+00, 55984 iterations, 36.98 seconds Total elapsed time = 93.54s Total elapsed time = 96.02s Total elapsed time = 104.19s 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% - 106s Explored 0 nodes (155448 simplex iterations) in 106.14 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%