Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:52:08 2012 Optimize a model with 2975 rows, 110 columns and 5950 nonzeros Presolve removed 2147 rows and 0 columns Presolve time: 0.09s Presolved: 828 rows, 110 columns, 5660 nonzeros Variable types: 0 continuous, 110 integer (110 binary) Found heuristic solution: objective 6.0000000 Root relaxation: objective 1.529409e+01, 442 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 15.29409 0 107 6.00000 15.29409 155% - 0s H 0 0 7.0000000 15.29409 118% - 0s H 0 0 9.0000000 15.29409 69.9% - 0s 0 0 14.98016 0 109 9.00000 14.98016 66.4% - 0s 0 0 14.87726 0 108 9.00000 14.87726 65.3% - 0s 0 0 14.81466 0 109 9.00000 14.81466 64.6% - 0s 0 0 14.76240 0 110 9.00000 14.76240 64.0% - 0s 0 0 14.72407 0 109 9.00000 14.72407 63.6% - 0s 0 0 14.72314 0 109 9.00000 14.72314 63.6% - 0s 0 0 14.72288 0 109 9.00000 14.72288 63.6% - 0s 0 0 14.72262 0 109 9.00000 14.72262 63.6% - 1s 0 2 14.72037 0 109 9.00000 14.72037 63.6% - 1s Cutting planes: Clique: 74 Explored 425 nodes (24913 simplex iterations) in 2.54 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%