Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:56:20 2013 Optimize a model with 396 rows, 12996 columns and 25956 nonzeros Presolve time: 0.02s Presolved: 396 rows, 12996 columns, 25956 nonzeros Variable types: 12960 continuous, 36 integer (36 binary) Root relaxation: objective 3.884043e+04, 557 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 38840.4337 0 8 - 38840.4337 - - 0s H 0 0 39927.000000 38840.4337 2.72% - 0s H 0 0 39460.000000 38840.4337 1.57% - 0s 0 0 39166.6820 0 4 39460.0000 39166.6820 0.74% - 0s 0 0 39171.7541 0 3 39460.0000 39171.7541 0.73% - 0s 0 0 39172.3479 0 2 39460.0000 39172.3479 0.73% - 0s 0 0 39172.8044 0 3 39460.0000 39172.8044 0.73% - 0s 0 0 39174.1122 0 3 39460.0000 39174.1122 0.72% - 0s 0 0 39174.3049 0 3 39460.0000 39174.3049 0.72% - 0s 0 0 39174.5414 0 2 39460.0000 39174.5414 0.72% - 0s 0 0 39174.5414 0 2 39460.0000 39174.5414 0.72% - 0s H 0 0 39210.000000 39174.5414 0.09% - 0s 0 0 39174.5414 0 6 39210.0000 39174.5414 0.09% - 0s 0 0 39179.2862 0 2 39210.0000 39179.2862 0.08% - 0s 0 0 39179.9564 0 2 39210.0000 39179.9564 0.08% - 0s 0 0 39180.9845 0 2 39210.0000 39180.9845 0.07% - 0s 0 0 39182.1333 0 2 39210.0000 39182.1333 0.07% - 0s 0 0 39183.6013 0 2 39210.0000 39183.6013 0.07% - 0s 0 0 39184.6452 0 1 39210.0000 39184.6452 0.06% - 0s 0 0 39184.6452 0 1 39210.0000 39184.6452 0.06% - 0s 0 0 39197.4590 0 1 39210.0000 39197.4590 0.03% - 0s 0 0 39200.4889 0 1 39210.0000 39200.4889 0.02% - 0s Cutting planes: Implied bound: 28 Flow cover: 1 Explored 0 nodes (1512 simplex iterations) in 0.43 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.921000000000e+04, best bound 3.921000000000e+04, gap 0.0%