Optimize a model with 48 rows, 1128 columns and 2256 nonzeros Presolve time: 0.00s Presolved: 48 rows, 1128 columns, 2256 nonzeros Variable types: 0 continuous, 1128 integer (1128 binary) Root relaxation: objective 4.769000e+03, 73 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 4769.00000 0 6 - 4769.00000 - - 0s 0 0 4770.50000 0 6 - 4770.50000 - - 0s 0 0 4779.33333 0 16 - 4779.33333 - - 0s 0 0 4792.30000 0 19 - 4792.30000 - - 0s 0 0 4796.75000 0 15 - 4796.75000 - - 0s 0 0 4802.33333 0 10 - 4802.33333 - - 0s 0 0 4880.00000 0 10 - 4880.00000 - - 0s 0 0 4949.66667 0 21 - 4949.66667 - - 0s 0 0 4964.50000 0 6 - 4964.50000 - - 0s 0 0 4993.20000 0 39 - 4993.20000 - - 0s 0 0 5000.00000 0 11 - 5000.00000 - - 0s 0 0 5000.00000 0 11 - 5000.00000 - - 0s 0 2 5001.75000 0 11 - 5001.75000 - - 0s * 7 7 4 5061.0000000 5024.50000 0.72% 5.9 0s * 11 3 4 5058.0000000 5024.50000 0.66% 5.7 0s * 20 3 5 5054.0000000 5036.50000 0.35% 4.5 0s * 24 0 3 5046.0000000 5046.00000 0.0% 4.1 0s Cutting planes: Zero half: 11 Explored 25 nodes (245 simplex iterations) in 0.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.046000000000e+03, best bound 5.046000000000e+03, gap 0.0% Gurobi 5.0.1 (linux64) logging started Sun Nov 25 02:42:24 2012