Gurobi 5.0.1 (linux64) logging started Sat Nov 17 06:14:00 2012 Optimize a model with 65779 rows, 53130 columns and 249318 nonzeros Presolve removed 474 rows and 2762 columns Presolve time: 4.93s Presolved: 65305 rows, 50368 columns, 244840 nonzeros Variable types: 0 continuous, 50368 integer (50368 binary) Found heuristic solution: objective 230.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 37617 3.0001451e+00 1.662857e+02 0.000000e+00 5s 46537 3.0001748e+00 1.169171e+03 0.000000e+00 10s 49183 3.0001823e+00 1.033857e+02 0.000000e+00 15s 52123 3.0001877e+00 8.024200e+02 0.000000e+00 20s 55063 3.0001928e+00 6.880437e+01 0.000000e+00 25s 57856 3.0001971e+00 1.405922e+02 0.000000e+00 30s 60649 3.0002012e+00 4.778392e+01 0.000000e+00 35s 63589 3.0002062e+00 5.557703e+02 0.000000e+00 40s 66529 3.0002118e+00 6.292498e+01 0.000000e+00 45s 69322 3.0002160e+00 4.827717e+01 0.000000e+00 50s 72115 3.0002203e+00 6.283805e+00 0.000000e+00 55s 75055 3.0002247e+00 5.451565e+01 0.000000e+00 60s 77848 3.0002299e+00 4.106984e+00 0.000000e+00 65s 80641 3.0002322e+00 8.774897e+00 0.000000e+00 70s 81734 3.0000000e+00 0.000000e+00 0.000000e+00 72s Root relaxation: objective 3.000000e+00, 81734 iterations, 72.04 seconds Total elapsed time = 121.93s Total elapsed time = 128.60s Total elapsed time = 131.26s 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% - 135s Explored 0 nodes (169154 simplex iterations) in 135.20 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%