Gurobi 5.0.1 (linux64) logging started Wed Apr 24 05:59:45 2013 Optimize a model with 990 rows, 81090 columns and 162090 nonzeros Presolve time: 0.13s Presolved: 990 rows, 81090 columns, 162090 nonzeros Variable types: 81000 continuous, 90 integer (90 binary) Root relaxation: objective 1.042248e+05, 2559 iterations, 0.09 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 104224.788 0 11 - 104224.788 - - 0s H 0 0 112983.00000 104224.788 7.75% - 0s H 0 0 105600.00000 104224.788 1.30% - 0s 0 0 104758.986 0 7 105600.000 104758.986 0.80% - 0s 0 0 104758.986 0 11 105600.000 104758.986 0.80% - 1s 0 0 104758.986 0 7 105600.000 104758.986 0.80% - 1s 0 0 104796.012 0 8 105600.000 104796.012 0.76% - 1s 0 0 104810.714 0 7 105600.000 104810.714 0.75% - 1s 0 0 104815.899 0 6 105600.000 104815.899 0.74% - 1s 0 0 104823.728 0 5 105600.000 104823.728 0.74% - 1s 0 0 104826.297 0 6 105600.000 104826.297 0.73% - 1s 0 0 104826.320 0 5 105600.000 104826.320 0.73% - 1s 0 0 104826.335 0 6 105600.000 104826.335 0.73% - 2s 0 0 104826.346 0 6 105600.000 104826.346 0.73% - 2s 0 2 104832.380 0 6 105600.000 104832.380 0.73% - 2s H 8 6 105022.00000 104895.761 0.12% 58.0 2s H 9 5 105014.96296 104895.761 0.11% 54.6 2s H 11 6 104995.14286 104895.761 0.09% 51.3 2s * 13 5 12 104982.00000 104895.761 0.08% 44.5 2s Cutting planes: Implied bound: 210 Flow cover: 14 Explored 21 nodes (7135 simplex iterations) in 3.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.049820000000e+05, best bound 1.049820000000e+05, gap 0.0%