Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:03:15 2013 Optimize a model with 1080 rows, 2265 columns and 7525 nonzeros Presolve removed 5 rows and 5 columns Presolve time: 0.12s Presolved: 1075 rows, 2260 columns, 6520 nonzeros Variable types: 1260 continuous, 1000 integer (1000 binary) Root relaxation: objective 1.291780e+04, 50 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 12917.7960 0 2 - 12917.7960 - - 0s 0 0 12924.4675 0 2 - 12924.4675 - - 0s 0 0 12924.4897 0 2 - 12924.4897 - - 0s 0 0 12926.8965 0 2 - 12926.8965 - - 0s 0 0 12928.6743 0 2 - 12928.6743 - - 0s 0 0 12930.1187 0 2 - 12930.1187 - - 0s 0 0 12930.9737 0 5 - 12930.9737 - - 0s 0 0 12931.3520 0 2 - 12931.3520 - - 0s 0 0 12932.2234 0 5 - 12932.2234 - - 0s 0 0 12932.4369 0 2 - 12932.4369 - - 0s 0 0 12933.3851 0 8 - 12933.3851 - - 0s 0 0 12933.4101 0 2 - 12933.4101 - - 0s 0 0 12933.4373 0 9 - 12933.4373 - - 0s 0 0 12934.2958 0 2 - 12934.2958 - - 0s 0 0 12934.3109 0 5 - 12934.3109 - - 0s 0 0 12934.6009 0 10 - 12934.6009 - - 0s 0 0 12935.0195 0 3 - 12935.0195 - - 0s 0 0 12935.0404 0 10 - 12935.0404 - - 0s 0 0 12935.1104 0 2 - 12935.1104 - - 0s 0 0 12935.1382 0 11 - 12935.1382 - - 0s 0 0 12935.1382 0 11 - 12935.1382 - - 0s 0 2 12935.1382 0 11 - 12935.1382 - - 0s * 19 6 12 12965.578173 12965.5782 0.0% 7.3 0s Cutting planes: Gomory: 2 Implied bound: 22 Flow cover: 4 Explored 20 nodes (433 simplex iterations) in 0.59 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.296557817281e+04, best bound 1.296557817281e+04, gap 0.0%