Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:53:34 2013 Optimize a model with 319 rows, 8439 columns and 16849 nonzeros Presolve time: 0.01s Presolved: 319 rows, 8439 columns, 16849 nonzeros Variable types: 8410 continuous, 29 integer (29 binary) Root relaxation: objective 2.974104e+04, 413 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 29741.0395 0 6 - 29741.0395 - - 0s H 0 0 30002.000000 29741.0395 0.87% - 0s H 0 0 29846.000000 29741.0395 0.35% - 0s 0 0 29806.9569 0 4 29846.0000 29806.9569 0.13% - 0s 0 0 29811.5482 0 3 29846.0000 29811.5482 0.12% - 0s 0 0 29816.6542 0 3 29846.0000 29816.6542 0.10% - 0s 0 0 29824.5222 0 4 29846.0000 29824.5222 0.07% - 0s 0 0 29824.5554 0 3 29846.0000 29824.5554 0.07% - 0s 0 0 29824.5554 0 3 29846.0000 29824.5554 0.07% - 0s 0 0 29824.5554 0 3 29846.0000 29824.5554 0.07% - 0s 0 0 29824.8507 0 2 29846.0000 29824.8507 0.07% - 0s 0 0 29824.8766 0 3 29846.0000 29824.8766 0.07% - 0s 0 0 29824.8789 0 3 29846.0000 29824.8789 0.07% - 0s 0 0 29824.9174 0 3 29846.0000 29824.9174 0.07% - 0s 0 0 29827.0468 0 2 29846.0000 29827.0468 0.06% - 0s 0 0 29830.1677 0 2 29846.0000 29830.1677 0.05% - 0s 0 0 29838.8077 0 1 29846.0000 29838.8077 0.02% - 0s 0 0 29838.8077 0 2 29846.0000 29838.8077 0.02% - 0s 0 0 29838.8077 0 2 29846.0000 29838.8077 0.02% - 0s 0 0 29838.8077 0 1 29846.0000 29838.8077 0.02% - 0s Cutting planes: Implied bound: 2 Flow cover: 4 Explored 0 nodes (827 simplex iterations) in 0.26 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.984600000000e+04, best bound 2.984600000000e+04, gap 0.0%