Gurobi 5.0.1 (linux64) logging started Wed Apr 24 04:01:37 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 9.663863e+04, 2554 iterations, 0.09 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 96638.6311 0 9 - 96638.6311 - - 0s H 0 0 104198.00000 96638.6311 7.25% - 0s 0 0 96909.9628 0 6 104198.000 96909.9628 6.99% - 0s H 0 0 103791.00000 96909.9628 6.63% - 0s 0 0 96940.2867 0 5 103791.000 96940.2867 6.60% - 0s H 0 0 103450.00000 96940.2867 6.29% - 0s 0 0 96945.1221 0 5 103450.000 96945.1221 6.29% - 0s H 0 0 103341.00000 96945.1221 6.19% - 0s 0 0 96950.3640 0 6 103341.000 96950.3640 6.18% - 1s H 0 0 103318.00000 96950.3640 6.16% - 1s 0 0 96958.9655 0 5 103318.000 96958.9655 6.15% - 1s 0 0 96960.3492 0 6 103318.000 96960.3492 6.15% - 1s 0 0 96960.6116 0 7 103318.000 96960.6116 6.15% - 1s 0 0 96960.6926 0 6 103318.000 96960.6926 6.15% - 1s H 0 0 98532.000000 96960.6926 1.59% - 1s 0 0 96960.6926 0 9 98532.0000 96960.6926 1.59% - 2s 0 0 96960.6926 0 5 98532.0000 96960.6926 1.59% - 2s 0 0 96960.6926 0 5 98532.0000 96960.6926 1.59% - 2s 0 0 96960.6926 0 5 98532.0000 96960.6926 1.59% - 2s 0 0 96960.6926 0 5 98532.0000 96960.6926 1.59% - 2s 0 0 96960.6926 0 6 98532.0000 96960.6926 1.59% - 2s 0 0 96960.6926 0 6 98532.0000 96960.6926 1.59% - 2s 0 0 96960.6926 0 6 98532.0000 96960.6926 1.59% - 3s 0 0 96960.6926 0 6 98532.0000 96960.6926 1.59% - 3s 0 2 96962.3756 0 6 98532.0000 96962.3756 1.59% - 3s H 9 9 98461.000000 97092.2056 1.39% 83.6 3s H 11 11 98427.000000 97092.2056 1.36% 75.7 3s H 17 16 98242.000000 97092.2056 1.17% 61.3 4s H 18 17 98224.000000 97092.2056 1.15% 58.6 4s H 20 15 97658.000000 97092.2056 0.58% 55.6 4s * 21 15 20 97560.000000 97092.2056 0.48% 53.6 4s * 23 13 18 97543.000000 97092.2056 0.46% 51.0 4s * 37 22 11 97494.000000 97252.6133 0.25% 61.2 4s 53 17 97374.0612 8 1 97494.0000 97333.0065 0.17% 68.9 5s Cutting planes: Implied bound: 180 Flow cover: 9 Explored 85 nodes (10609 simplex iterations) in 5.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.749400000000e+04, best bound 9.749400000000e+04, gap 0.0%