Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:59:13 2012 Optimize a model with 3666 rows, 122 columns and 7332 nonzeros Presolve removed 2630 rows and 0 columns Presolve time: 0.12s Presolved: 1036 rows, 122 columns, 7158 nonzeros Variable types: 0 continuous, 122 integer (122 binary) Found heuristic solution: objective 8.0000000 Root relaxation: objective 1.638417e+01, 485 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 16.38417 0 118 8.00000 16.38417 105% - 0s 0 0 15.96719 0 121 8.00000 15.96719 100% - 0s 0 0 15.86480 0 121 8.00000 15.86480 98.3% - 0s 0 0 15.83734 0 122 8.00000 15.83734 98.0% - 0s H 0 0 9.0000000 15.83734 76.0% - 0s 0 0 15.80979 0 121 9.00000 15.80979 75.7% - 0s 0 0 15.80907 0 121 9.00000 15.80907 75.7% - 0s 0 0 15.80720 0 121 9.00000 15.80720 75.6% - 1s 0 0 15.80363 0 121 9.00000 15.80363 75.6% - 1s 0 0 15.80290 0 121 9.00000 15.80290 75.6% - 1s 0 0 15.80283 0 121 9.00000 15.80283 75.6% - 1s 0 0 15.80225 0 121 9.00000 15.80225 75.6% - 1s 0 2 15.80115 0 121 9.00000 15.80115 75.6% - 2s * 103 64 5 10.0000000 15.35990 53.6% 73.3 2s Cutting planes: Clique: 89 Explored 334 nodes (23438 simplex iterations) in 3.56 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%