Gurobi 5.0.1 (linux64) logging started Fri Jan 18 06:50:00 2013 Optimize a model with 3200 rows, 151200 columns and 753100 nonzeros Presolve removed 100 rows and 100 columns Presolve time: 1.39s Presolved: 3100 rows, 151100 columns, 703000 nonzeros Variable types: 150200 continuous, 900 integer (900 binary) Root relaxation: objective 7.543716e+05, 6846 iterations, 1.45 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 754371.571 0 12 - 754371.571 - - 3s 0 0 754383.532 0 12 - 754383.532 - - 5s 0 0 754391.078 0 14 - 754391.078 - - 6s 0 0 754393.664 0 16 - 754393.664 - - 6s 0 0 754395.625 0 17 - 754395.625 - - 7s 0 0 754396.260 0 14 - 754396.260 - - 8s 0 0 754396.449 0 14 - 754396.449 - - 9s 0 0 754397.133 0 14 - 754397.133 - - 10s 0 0 754397.353 0 14 - 754397.353 - - 11s 0 0 754397.375 0 14 - 754397.375 - - 12s 0 0 754397.403 0 14 - 754397.403 - - 13s 0 0 754397.474 0 14 - 754397.474 - - 14s 0 0 754397.474 0 14 - 754397.474 - - 18s 0 2 754400.431 0 14 - 754400.431 - - 34s 2 4 754441.452 2 15 - 754441.452 - 190 35s 16 18 755448.571 15 6 - 754462.581 - 125 40s 29 31 755645.581 28 3 - 754462.581 - 75.6 45s 39 41 755984.635 38 1 - 754462.581 - 60.2 50s 51 53 756217.594 50 1 - 754462.581 - 49.2 55s 63 65 756504.849 62 3 - 754462.581 - 42.8 60s 75 77 756805.060 74 3 - 754462.581 - 37.8 65s 86 88 756862.969 85 3 - 754462.581 - 33.9 70s 98 100 756967.295 97 3 - 754462.581 - 30.7 75s 109 111 757115.216 108 1 - 754462.581 - 28.4 80s 125 127 757237.600 124 1 - 754462.581 - 26.0 85s 145 147 757527.747 144 3 - 754462.581 - 23.4 90s 173 175 757670.232 172 1 - 754462.581 - 20.2 95s 206 208 757756.935 205 1 - 754462.581 - 17.2 100s 234 236 757856.134 233 1 - 754462.581 - 15.4 105s 268 270 758024.075 267 1 - 754462.581 - 13.6 110s * 298 96 297 758121.44317 754462.581 0.48% 12.4 112s 340 129 755812.709 43 1 758121.443 754675.925 0.45% 14.7 115s H 545 280 757757.02322 754675.925 0.41% 10.5 119s * 560 282 262 757675.22149 754675.925 0.40% 10.3 119s 566 276 cutoff 259 757675.221 754675.925 0.40% 10.2 120s 595 292 755685.821 34 3 757675.221 754711.606 0.39% 12.1 125s H 599 54 755710.85664 754711.606 0.13% 12.0 126s * 605 56 44 755699.62927 754711.606 0.13% 11.9 126s 651 77 755680.005 36 3 755699.629 754769.728 0.12% 13.3 130s * 653 74 36 755679.58081 754769.728 0.12% 13.3 130s 690 75 755133.499 9 6 755679.581 754849.118 0.11% 16.7 135s 729 70 755493.639 10 3 755679.581 755072.902 0.08% 20.4 140s 769 51 cutoff 11 755679.581 755239.946 0.06% 23.4 145s Cutting planes: Flow cover: 28 Explored 815 nodes (28898 simplex iterations) in 148.71 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.556795808113e+05, best bound 7.556044585403e+05, gap 0.0099%