Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:52:54 2013 Optimize a model with 7072 rows, 6812 columns and 27092 nonzeros Presolve removed 26 rows and 0 columns Presolve time: 0.03s Presolved: 7046 rows, 6812 columns, 27066 nonzeros Variable types: 6786 continuous, 26 integer (26 binary) Root relaxation: objective 3.185219e+04, 1511 iterations, 0.15 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 31852.1934 0 24 - 31852.1934 - - 0s H 0 0 34190.000000 31852.1934 6.84% - 0s 0 0 33367.1409 0 1 34190.0000 33367.1409 2.41% - 0s H 0 0 33572.617450 33367.1409 0.61% - 0s H 0 0 33522.000000 33367.1409 0.46% - 0s 0 0 33438.9412 0 1 33522.0000 33438.9412 0.25% - 0s * 0 0 0 33486.000000 33486.0000 0.0% - 0s Cutting planes: Implied bound: 22 Explored 0 nodes (1999 simplex iterations) in 0.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.348600000000e+04, best bound 3.348600000000e+04, gap 0.0%