Gurobi 5.0.1 (linux64) logging started Wed Dec 19 18:32:11 2012 Optimize a model with 7502 rows, 7320 columns and 32638 nonzeros Presolve removed 299 rows and 120 columns Presolve time: 0.10s Presolved: 7203 rows, 7200 columns, 32027 nonzeros Variable types: 3540 continuous, 3660 integer (3660 binary) Root relaxation: objective 3.762763e+02, 9338 iterations, 1.07 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 376.27628 0 130 - 376.27628 - - 1s 0 0 439.52611 0 120 - 439.52611 - - 1s 0 0 480.90001 0 120 - 480.90001 - - 2s 0 0 487.38219 0 123 - 487.38219 - - 2s 0 0 493.11737 0 142 - 493.11737 - - 2s 0 0 493.73279 0 143 - 493.73279 - - 3s 0 0 493.99959 0 144 - 493.99959 - - 3s 0 0 494.06434 0 150 - 494.06434 - - 3s 0 0 494.06434 0 150 - 494.06434 - - 7s 0 2 494.06447 0 150 - 494.06447 - - 8s 9 11 500.32071 7 131 - 494.73743 - 391 10s 72 60 499.89992 4 124 - 495.43679 - 233 15s 134 104 509.02762 20 112 - 497.02062 - 264 20s 256 205 503.59084 5 120 - 497.84748 - 219 25s 394 322 508.30313 9 128 - 498.40520 - 183 30s 470 384 505.72938 8 126 - 498.40572 - 197 35s 590 468 infeasible 8 - 498.60283 - 201 40s 605 481 532.43094 107 120 - 498.60283 - 201 45s 613 486 518.43559 23 144 - 500.79026 - 198 50s 619 490 576.66034 60 146 - 505.26925 - 196 57s 621 491 518.43559 23 146 - 505.26925 - 196 61s 622 494 506.81174 13 139 - 505.27327 - 228 65s 625 495 512.94021 15 120 - 506.88642 - 230 70s 677 508 523.47794 41 87 - 506.88642 - 228 75s 731 506 516.74076 17 135 - 507.51727 - 235 80s 779 518 537.29093 42 73 - 507.51727 - 241 85s 851 531 534.90173 35 78 - 511.38419 - 243 90s 936 545 518.96934 20 113 - 512.09957 - 241 95s 1020 585 521.11187 34 96 - 512.58831 - 244 100s 1121 601 522.57675 25 74 - 512.63043 - 246 105s 1224 634 518.65369 20 102 - 512.68065 - 245 110s 1307 663 517.78586 20 124 - 514.09643 - 249 115s 1448 723 518.29532 21 99 - 514.85025 - 243 120s 1562 777 infeasible 70 - 514.85616 - 242 125s 1686 833 550.95437 58 65 - 515.47150 - 240 130s 1788 871 521.56467 23 101 - 515.52738 - 241 135s 1869 909 infeasible 41 - 515.55940 - 243 140s 1941 933 530.51639 46 48 - 515.96269 - 246 145s 2034 967 538.53734 30 72 - 516.00571 - 246 150s 2123 1014 527.62468 33 87 - 516.35128 - 246 155s 2242 1107 534.73040 57 75 - 516.47938 - 242 160s 2399 1216 542.24357 49 50 - 516.75230 - 236 165s 2506 1278 522.58766 25 85 - 516.93219 - 236 170s 2612 1353 525.90594 34 112 - 517.06359 - 234 175s 2712 1435 539.75619 58 73 - 517.06785 - 234 180s 2822 1510 534.31997 38 84 - 517.11203 - 233 185s 2994 1643 535.20346 50 68 - 517.19181 - 227 190s * 3079 1294 53 540.0000000 517.24237 4.21% 224 192s H 3083 1021 534.0000000 517.36996 3.11% 224 192s H 3196 984 533.0000000 517.71602 2.87% 218 193s 3301 997 517.92287 24 150 533.00000 517.88635 2.84% 214 195s 3322 1012 517.88635 27 110 533.00000 517.88635 2.84% 215 200s H 3375 954 532.0000000 517.88635 2.65% 212 204s 3422 947 517.88635 33 105 532.00000 517.88635 2.65% 210 205s Cutting planes: Gomory: 15 Cover: 53 Implied bound: 7 Flow cover: 83 GUB cover: 10 Zero half: 2 Explored 3946 nodes (762275 simplex iterations) in 209.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.320000000000e+02, best bound 5.320000000000e+02, gap 0.0%