Gurobi 5.0.1 (linux64) logging started Wed Apr 24 04:01:48 2013 Optimize a model with 902 rows, 67322 columns and 134562 nonzeros Presolve time: 0.10s Presolved: 902 rows, 67322 columns, 134562 nonzeros Variable types: 67240 continuous, 82 integer (82 binary) Root relaxation: objective 9.385874e+04, 2719 iterations, 0.10 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 93858.7372 0 5 - 93858.7372 - - 0s H 0 0 97025.000000 93858.7372 3.26% - 0s 0 0 93909.3897 0 2 97025.0000 93909.3897 3.21% - 0s 0 0 93911.8857 0 2 97025.0000 93911.8857 3.21% - 0s 0 0 93915.5789 0 3 97025.0000 93915.5789 3.20% - 0s 0 0 93915.5789 0 3 97025.0000 93915.5789 3.20% - 0s 0 0 93915.5789 0 3 97025.0000 93915.5789 3.20% - 0s 0 0 93915.5789 0 3 97025.0000 93915.5789 3.20% - 1s 0 0 93920.5688 0 3 97025.0000 93920.5688 3.20% - 1s 0 0 93922.1493 0 2 97025.0000 93922.1493 3.20% - 1s 0 0 93922.1493 0 2 97025.0000 93922.1493 3.20% - 1s 0 0 93922.1493 0 2 97025.0000 93922.1493 3.20% - 1s 0 0 93922.8572 0 2 97025.0000 93922.8572 3.20% - 1s 0 2 93938.7590 0 2 97025.0000 93938.7590 3.18% - 2s H 1 1 95959.879518 93938.7590 2.11% 0.0 2s H 6 5 94258.000000 93971.5888 0.30% 51.3 2s H 9 7 94196.000000 93971.5888 0.24% 43.6 2s H 10 6 94105.795699 93971.5888 0.14% 41.3 2s * 11 6 10 94073.000000 93971.5888 0.11% 42.5 2s Cutting planes: Implied bound: 44 Flow cover: 4 Explored 17 nodes (3685 simplex iterations) in 2.48 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.407300000000e+04, best bound 9.407117484237e+04, gap 0.0019%