Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:14:52 2012 Optimize a model with 4524 rows, 702 columns and 14170 nonzeros Presolve time: 0.05s Presolved: 4524 rows, 702 columns, 22937 nonzeros Variable types: 0 continuous, 702 integer (702 binary) Found heuristic solution: objective 10.0000000 Root relaxation: objective 2.000000e+00, 846 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 52 10.00000 2.00000 80.0% - 0s H 0 0 8.0000000 2.00000 75.0% - 0s 0 0 2.00000 0 52 8.00000 2.00000 75.0% - 0s 0 0 2.00000 0 52 8.00000 2.00000 75.0% - 0s H 0 0 7.0000000 2.00000 71.4% - 0s 0 0 2.62206 0 129 7.00000 2.62206 62.5% - 0s 0 0 5.00000 0 125 7.00000 5.00000 28.6% - 1s 0 0 6.00000 0 131 7.00000 6.00000 14.3% - 1s 0 0 6.00000 0 127 7.00000 6.00000 14.3% - 1s 0 0 6.00000 0 149 7.00000 6.00000 14.3% - 1s 0 0 6.00000 0 38 7.00000 6.00000 14.3% - 1s 0 0 6.00000 0 53 7.00000 6.00000 14.3% - 2s 0 0 6.00000 0 47 7.00000 6.00000 14.3% - 2s 0 0 6.00000 0 64 7.00000 6.00000 14.3% - 3s 0 0 6.00000 0 31 7.00000 6.00000 14.3% - 3s 0 0 6.00000 0 21 7.00000 6.00000 14.3% - 3s 0 0 6.00000 0 24 7.00000 6.00000 14.3% - 3s 0 0 6.00000 0 47 7.00000 6.00000 14.3% - 4s 0 0 6.00000 0 31 7.00000 6.00000 14.3% - 4s 0 2 6.00000 0 31 7.00000 6.00000 14.3% - 4s 2 3 6.00000 1 31 7.00000 6.00000 14.3% 520 5s 15 12 6.00000 1 21 7.00000 6.00000 14.3% 69.3 10s 80 14 6.00000 18 80 7.00000 6.00000 14.3% 659 15s 256 38 infeasible 21 7.00000 6.00000 14.3% 342 20s 573 46 infeasible 24 7.00000 6.00000 14.3% 233 25s 729 41 6.00000 24 69 7.00000 6.00000 14.3% 213 30s 823 43 6.00000 24 18 7.00000 6.00000 14.3% 204 35s 1062 40 6.00000 20 42 7.00000 6.00000 14.3% 183 40s 1615 38 infeasible 28 7.00000 6.00000 14.3% 151 45s 1896 35 6.00000 26 18 7.00000 6.00000 14.3% 149 50s 2304 11 infeasible 22 7.00000 6.00000 14.3% 141 55s Cutting planes: Gomory: 3 Clique: 37 Zero half: 10 Explored 2403 nodes (364194 simplex iterations) in 56.21 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%