Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:01:47 2013 Optimize a model with 836 rows, 57836 columns and 115596 nonzeros Presolve time: 0.08s Presolved: 836 rows, 57836 columns, 115596 nonzeros Variable types: 57760 continuous, 76 integer (76 binary) Root relaxation: objective 9.444222e+04, 2396 iterations, 0.08 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 94442.2221 0 9 - 94442.2221 - - 0s H 0 0 98789.000000 94442.2221 4.40% - 0s 0 0 94773.2955 0 6 98789.0000 94773.2955 4.06% - 0s 0 0 94805.9452 0 6 98789.0000 94805.9452 4.03% - 0s 0 0 94822.1196 0 5 98789.0000 94822.1196 4.02% - 0s 0 0 94822.5348 0 5 98789.0000 94822.5348 4.02% - 0s 0 0 94828.2190 0 4 98789.0000 94828.2190 4.01% - 0s H 0 0 94931.000000 94828.2190 0.11% - 1s 0 0 94828.2190 0 4 94931.0000 94828.2190 0.11% - 1s 0 0 94828.2190 0 9 94931.0000 94828.2190 0.11% - 1s 0 0 94828.2190 0 6 94931.0000 94828.2190 0.11% - 1s 0 0 94828.2190 0 6 94931.0000 94828.2190 0.11% - 1s 0 0 94828.2190 0 5 94931.0000 94828.2190 0.11% - 1s 0 0 94828.2190 0 5 94931.0000 94828.2190 0.11% - 1s 0 0 94828.2190 0 4 94931.0000 94828.2190 0.11% - 1s 0 0 94828.2190 0 4 94931.0000 94828.2190 0.11% - 1s 0 0 94828.2190 0 4 94931.0000 94828.2190 0.11% - 1s 0 0 94828.2190 0 4 94931.0000 94828.2190 0.11% - 1s 0 0 94843.0704 0 3 94931.0000 94843.0704 0.09% - 1s 0 2 94846.2297 0 3 94931.0000 94846.2297 0.09% - 2s Cutting planes: Implied bound: 115 Flow cover: 4 Explored 6 nodes (5374 simplex iterations) in 2.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.493100000000e+04, best bound 9.493100000000e+04, gap 0.0%