Gurobi 5.0.1 (linux64) logging started Wed Apr 24 12:21:44 2013 Optimize a model with 1870 rows, 289170 columns and 578170 nonzeros Presolve time: 0.90s Presolved: 1870 rows, 289170 columns, 578170 nonzeros Variable types: 289000 continuous, 170 integer (170 binary) Root relaxation: objective 3.207696e+05, 10250 iterations, 0.92 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 320769.595 0 8 - 320769.595 - - 2s H 0 0 348419.00000 320769.595 7.94% - 2s 0 0 321148.309 0 6 348419.000 321148.309 7.83% - 4s 0 0 321263.142 0 8 348419.000 321263.142 7.79% - 4s 0 0 321287.758 0 8 348419.000 321287.758 7.79% - 5s 0 0 321309.219 0 6 348419.000 321309.219 7.78% - 6s 0 0 321327.920 0 5 348419.000 321327.920 7.78% - 7s 0 0 321330.597 0 3 348419.000 321330.597 7.77% - 7s H 0 0 338580.70142 321330.597 5.09% - 8s H 0 0 336593.00000 321330.597 4.53% - 8s 0 0 321330.597 0 3 336593.000 321330.597 4.53% - 8s H 0 0 336574.00000 321330.597 4.53% - 8s 0 0 321330.597 0 3 336574.000 321330.597 4.53% - 9s H 0 0 336509.00000 321330.597 4.51% - 9s 0 0 321335.197 0 3 336509.000 321335.197 4.51% - 10s 0 0 321335.197 0 3 336509.000 321335.197 4.51% - 10s 0 0 321335.197 0 3 336509.000 321335.197 4.51% - 11s H 0 0 321821.00000 321335.197 0.15% - 11s 0 0 321335.197 0 3 321821.000 321335.197 0.15% - 12s 0 0 321335.197 0 8 321821.000 321335.197 0.15% - 13s 0 0 321335.197 0 6 321821.000 321335.197 0.15% - 14s 0 0 321335.197 0 8 321821.000 321335.197 0.15% - 14s 0 0 321335.197 0 5 321821.000 321335.197 0.15% - 14s 0 0 321335.197 0 6 321821.000 321335.197 0.15% - 15s 0 0 321335.197 0 4 321821.000 321335.197 0.15% - 15s 0 0 321335.197 0 3 321821.000 321335.197 0.15% - 15s 0 0 321335.197 0 3 321821.000 321335.197 0.15% - 15s 0 0 321335.197 0 3 321821.000 321335.197 0.15% - 16s 0 0 321335.197 0 3 321821.000 321335.197 0.15% - 16s 0 0 321392.604 0 4 321821.000 321392.604 0.13% - 17s 0 2 321399.394 0 4 321821.000 321399.394 0.13% - 18s 16 11 321675.429 13 1 321821.000 321471.563 0.11% 91.9 20s * 17 7 14 321697.00000 321471.563 0.07% 86.6 20s Cutting planes: Implied bound: 139 Flow cover: 5 Explored 26 nodes (20913 simplex iterations) in 20.97 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.216970000000e+05, best bound 3.216728983957e+05, gap 0.0075%