Gurobi 5.0.1 (linux64) logging started Wed Apr 24 07:21:08 2013 Optimize a model with 1034 rows, 88454 columns and 176814 nonzeros Presolve time: 0.15s Presolved: 1034 rows, 88454 columns, 176814 nonzeros Variable types: 88360 continuous, 94 integer (94 binary) Root relaxation: objective 9.265459e+04, 2580 iterations, 0.11 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 92654.5936 0 10 - 92654.5936 - - 0s H 0 0 97345.000000 92654.5936 4.82% - 0s H 0 0 94052.000000 92654.5936 1.49% - 0s 0 0 92986.2218 0 4 94052.0000 92986.2218 1.13% - 0s 0 0 92986.2218 0 10 94052.0000 92986.2218 1.13% - 1s 0 0 92986.2218 0 4 94052.0000 92986.2218 1.13% - 1s 0 0 93001.5340 0 7 94052.0000 93001.5340 1.12% - 1s 0 0 93008.8775 0 6 94052.0000 93008.8775 1.11% - 1s 0 0 93012.7104 0 4 94052.0000 93012.7104 1.11% - 1s 0 0 93013.7983 0 5 94052.0000 93013.7983 1.10% - 2s 0 0 93013.9969 0 4 94052.0000 93013.9969 1.10% - 2s 0 0 93014.6839 0 3 94052.0000 93014.6839 1.10% - 2s 0 0 93014.6839 0 3 94052.0000 93014.6839 1.10% - 2s 0 0 93014.6839 0 3 94052.0000 93014.6839 1.10% - 2s 0 2 93018.8750 0 3 94052.0000 93018.8750 1.10% - 2s H 3 3 93510.739416 93083.0455 0.46% 84.7 3s H 4 3 93442.731783 93085.5206 0.38% 64.2 3s H 5 4 93318.424490 93090.5875 0.24% 65.4 3s H 8 7 93300.518248 93090.5875 0.23% 64.5 3s H 9 7 93267.204380 93090.5875 0.19% 57.7 3s H 13 9 93229.000000 93090.5875 0.15% 52.6 3s H 14 8 93209.000000 93090.5875 0.13% 50.4 3s * 17 6 16 93144.000000 93090.5875 0.06% 43.6 3s H 22 4 93123.000000 93098.2712 0.03% 41.5 3s H 23 5 93112.682171 93098.2712 0.02% 40.6 3s * 24 5 6 93110.000000 93098.2712 0.01% 39.8 3s Cutting planes: Implied bound: 164 Flow cover: 7 Explored 27 nodes (6771 simplex iterations) in 3.68 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.311000000000e+04, best bound 9.310358360982e+04, gap 0.0069%