Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:02:08 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 8.117763e+04, 1827 iterations, 0.06 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 81177.6274 0 10 - 81177.6274 - - 0s H 0 0 89775.000000 81177.6274 9.58% - 0s 0 0 81596.2762 0 6 89775.0000 81596.2762 9.11% - 0s H 0 0 89125.164763 81596.2762 8.45% - 0s H 0 0 88075.000000 81596.2762 7.36% - 0s 0 0 81643.6992 0 4 88075.0000 81643.6992 7.30% - 0s H 0 0 87026.792507 81643.6992 6.19% - 0s H 0 0 86054.000000 81643.6992 5.13% - 0s 0 0 81658.5054 0 4 86054.0000 81658.5054 5.11% - 0s H 0 0 85977.000000 81658.5054 5.02% - 0s 0 0 81659.7776 0 4 85977.0000 81659.7776 5.02% - 0s H 0 0 85891.000000 81659.7776 4.93% - 0s 0 0 81662.2764 0 3 85891.0000 81662.2764 4.92% - 0s H 0 0 84010.750450 81662.2764 2.80% - 0s H 0 0 83494.000000 81662.2764 2.19% - 0s 0 0 81662.2764 0 3 83494.0000 81662.2764 2.19% - 0s 0 0 81662.2764 0 3 83494.0000 81662.2764 2.19% - 1s H 0 0 83443.000000 81662.2764 2.13% - 1s 0 0 81662.2764 0 3 83443.0000 81662.2764 2.13% - 1s H 0 0 83255.000000 81662.2764 1.91% - 1s 0 0 81662.2764 0 10 83255.0000 81662.2764 1.91% - 1s 0 0 81662.2764 0 6 83255.0000 81662.2764 1.91% - 1s 0 0 81662.2764 0 4 83255.0000 81662.2764 1.91% - 1s 0 0 81662.2764 0 4 83255.0000 81662.2764 1.91% - 1s 0 0 81662.2764 0 4 83255.0000 81662.2764 1.91% - 1s 0 0 81662.2764 0 3 83255.0000 81662.2764 1.91% - 1s 0 0 81662.2764 0 3 83255.0000 81662.2764 1.91% - 2s 0 0 81662.2764 0 3 83255.0000 81662.2764 1.91% - 2s 0 0 81662.2764 0 3 83255.0000 81662.2764 1.91% - 2s H 0 0 82098.000000 81662.2764 0.53% - 2s 0 2 81663.3248 0 3 82098.0000 81663.3248 0.53% - 2s H 11 7 82080.000000 81683.2461 0.48% 46.6 2s * 12 7 11 82060.000000 81683.2461 0.46% 45.7 2s * 24 11 13 81802.000000 81729.3208 0.09% 36.2 2s Cutting planes: Implied bound: 96 Flow cover: 2 Explored 43 nodes (5583 simplex iterations) in 3.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.180200000000e+04, best bound 8.179454687500e+04, gap 0.0091%