Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:54:16 2013 Optimize a model with 9982 rows, 9672 columns and 38502 nonzeros Presolve removed 31 rows and 0 columns Presolve time: 0.04s Presolved: 9951 rows, 9672 columns, 38471 nonzeros Variable types: 9641 continuous, 31 integer (31 binary) Root relaxation: objective 2.474041e+04, 981 iterations, 0.11 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 24740.4073 0 23 - 24740.4073 - - 0s H 0 0 27956.000000 24740.4073 11.5% - 0s 0 0 26506.4848 0 2 27956.0000 26506.4848 5.18% - 0s H 0 0 26946.672532 26506.4848 1.63% - 0s H 0 0 26722.000000 26506.4848 0.81% - 0s H 0 0 26639.000000 26506.4848 0.50% - 0s 0 0 26542.1827 0 2 26639.0000 26542.1827 0.36% - 0s 0 0 26554.7596 0 2 26639.0000 26554.7596 0.32% - 0s 0 0 26554.7596 0 2 26639.0000 26554.7596 0.32% - 0s 0 2 26559.3750 0 2 26639.0000 26559.3750 0.30% - 0s Cutting planes: Implied bound: 20 Explored 6 nodes (1562 simplex iterations) in 0.66 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.663900000000e+04, best bound 2.663900000000e+04, gap 0.0%