Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:53:19 2012 Optimize a model with 7099 rows, 992 columns and 22165 nonzeros Presolve time: 0.06s Presolved: 7099 rows, 992 columns, 28403 nonzeros Variable types: 0 continuous, 992 integer (992 binary) Found heuristic solution: objective 19.0000000 Root relaxation: objective 2.000000e+00, 500 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 62 19.00000 2.00000 89.5% - 0s H 0 0 12.0000000 2.00000 83.3% - 0s H 0 0 10.0000000 2.00000 80.0% - 0s 0 0 2.00000 0 62 10.00000 2.00000 80.0% - 0s H 0 0 9.0000000 2.00000 77.8% - 0s 0 0 2.00000 0 62 9.00000 2.00000 77.8% - 0s 0 0 2.00000 0 62 9.00000 2.00000 77.8% - 1s 0 0 2.00000 0 62 9.00000 2.00000 77.8% - 1s 0 0 2.00000 0 62 9.00000 2.00000 77.8% - 2s H 0 0 8.0000000 2.00000 75.0% - 2s H 0 0 7.0000000 2.00000 71.4% - 3s 0 2 2.00000 0 62 7.00000 2.00000 71.4% - 3s 6 8 5.00000 4 54 7.00000 3.00000 57.1% 1438 5s 81 39 4.33333 6 110 7.00000 4.00000 42.9% 536 10s 149 57 6.00000 11 61 7.00000 4.00000 42.9% 494 15s 320 92 4.66667 5 80 7.00000 4.33333 38.1% 337 20s 487 139 cutoff 16 7.00000 5.00000 28.6% 300 25s 603 163 6.00000 9 137 7.00000 6.00000 14.3% 274 33s 607 167 6.00000 9 62 7.00000 6.00000 14.3% 310 36s 610 169 6.00000 14 132 7.00000 6.00000 14.3% 308 41s Explored 612 nodes (214246 simplex iterations) in 41.69 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%