Gurobi 5.0.1 (linux64) logging started Wed Apr 24 02:19:42 2013 Optimize a model with 770 rows, 49070 columns and 98070 nonzeros Presolve time: 0.07s Presolved: 770 rows, 49070 columns, 98070 nonzeros Variable types: 49000 continuous, 70 integer (70 binary) Root relaxation: objective 8.109091e+04, 1946 iterations, 0.07 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 81090.9109 0 10 - 81090.9109 - - 0s H 0 0 84290.000000 81090.9109 3.80% - 0s H 0 0 82876.000000 81090.9109 2.15% - 0s 0 0 81456.1181 0 5 82876.0000 81456.1181 1.71% - 0s 0 0 81467.5596 0 6 82876.0000 81467.5596 1.70% - 0s 0 0 81475.0758 0 4 82876.0000 81475.0758 1.69% - 0s 0 0 81478.9939 0 4 82876.0000 81478.9939 1.69% - 0s 0 0 81481.2682 0 5 82876.0000 81481.2682 1.68% - 0s 0 0 81481.2682 0 5 82876.0000 81481.2682 1.68% - 0s 0 0 81481.2682 0 5 82876.0000 81481.2682 1.68% - 0s 0 0 81481.2682 0 5 82876.0000 81481.2682 1.68% - 0s 0 0 81481.2682 0 10 82876.0000 81481.2682 1.68% - 1s 0 0 81481.2682 0 5 82876.0000 81481.2682 1.68% - 1s 0 0 81481.2682 0 4 82876.0000 81481.2682 1.68% - 1s 0 0 81481.2682 0 4 82876.0000 81481.2682 1.68% - 1s 0 0 81481.2682 0 5 82876.0000 81481.2682 1.68% - 1s 0 0 81481.2682 0 5 82876.0000 81481.2682 1.68% - 1s 0 0 81481.2682 0 5 82876.0000 81481.2682 1.68% - 1s 0 0 81481.2682 0 5 82876.0000 81481.2682 1.68% - 1s 0 2 81502.4983 0 5 82876.0000 81502.4983 1.66% - 2s H 3 3 82228.538123 81516.6238 0.87% 28.7 2s H 4 4 82054.580645 81543.8323 0.62% 30.2 2s H 5 5 81674.048739 81545.8667 0.16% 30.6 2s H 6 3 81644.858824 81546.8896 0.12% 32.2 2s H 7 4 81605.529412 81546.8896 0.07% 30.0 2s H 9 3 81593.000000 81546.8896 0.06% 25.7 2s * 10 3 9 81563.000000 81546.8896 0.02% 26.1 2s Cutting planes: Implied bound: 71 Flow cover: 7 Explored 13 nodes (4973 simplex iterations) in 2.30 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.156300000000e+04, best bound 8.155510322581e+04, gap 0.0097%