Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:19:06 2013 Optimize a model with 858 rows, 60918 columns and 121758 nonzeros Presolve time: 0.09s Presolved: 858 rows, 60918 columns, 121758 nonzeros Variable types: 60840 continuous, 78 integer (78 binary) Root relaxation: objective 8.825562e+04, 2240 iterations, 0.07 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 88255.6188 0 9 - 88255.6188 - - 0s H 0 0 94708.000000 88255.6188 6.81% - 0s 0 0 88337.2862 0 4 94708.0000 88337.2862 6.73% - 0s H 0 0 94424.000000 88337.2862 6.45% - 0s 0 0 88358.5965 0 6 94424.0000 88358.5965 6.42% - 0s 0 0 88372.8563 0 6 94424.0000 88372.8563 6.41% - 0s 0 0 88377.9024 0 4 94424.0000 88377.9024 6.40% - 0s H 0 0 94111.000000 88377.9024 6.09% - 0s 0 0 88385.7344 0 5 94111.0000 88385.7344 6.08% - 0s 0 0 88386.1789 0 4 94111.0000 88386.1789 6.08% - 1s H 0 0 93991.000000 88386.1789 5.96% - 1s 0 0 88387.9904 0 4 93991.0000 88387.9904 5.96% - 1s 0 0 88389.3364 0 4 93991.0000 88389.3364 5.96% - 1s 0 0 88389.3364 0 4 93991.0000 88389.3364 5.96% - 1s 0 0 88389.7010 0 4 93991.0000 88389.7010 5.96% - 1s 0 0 88389.7010 0 4 93991.0000 88389.7010 5.96% - 1s 0 2 88393.9174 0 4 93991.0000 88393.9174 5.95% - 1s H 1 1 93100.686634 88393.9174 5.06% 0.0 1s H 3 3 90016.650000 88484.6786 1.70% 65.0 2s H 6 6 89577.000000 88520.1334 1.18% 56.7 2s H 7 7 89205.000000 88520.1334 0.77% 53.7 2s H 8 7 88949.000000 88520.1334 0.48% 52.6 2s H 10 7 88774.720930 88520.1334 0.29% 51.6 2s H 11 8 88725.936565 88520.1334 0.23% 52.4 2s H 12 8 88725.346154 88520.1334 0.23% 50.8 2s * 18 11 14 88709.000000 88520.1334 0.21% 37.9 2s * 19 9 14 88671.000000 88520.1334 0.17% 36.3 2s H 28 5 88662.000000 88561.4123 0.11% 39.2 2s H 29 1 88604.000000 88565.6619 0.04% 38.3 2s H 30 1 88598.000000 88565.6619 0.04% 38.2 2s * 31 1 8 88591.000000 88565.6619 0.03% 37.5 2s Cutting planes: Implied bound: 82 Flow cover: 13 Explored 33 nodes (3745 simplex iterations) in 2.62 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.859100000000e+04, best bound 8.859100000000e+04, gap 0.0%