current bounds on the number of colors: 0 -- 211 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 13:41:46 2012 Optimize a model with 117706 rows, 23274 columns and 374640 nonzeros Presolve removed 1 rows and 105 columns Presolve time: 0.40s Presolved: 117705 rows, 23169 columns, 374535 nonzeros Variable types: 0 continuous, 23169 integer (23169 binary) Root relaxation: objective 0.000000e+00, 554 iterations, 0.15 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (982 simplex iterations) in 0.70 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 105 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 13:41:49 2012 Optimize a model with 58399 rows, 12091 columns and 185536 nonzeros Presolve removed 1 rows and 52 columns Presolve time: 0.18s Presolved: 58398 rows, 12039 columns, 185484 nonzeros Variable types: 0 continuous, 12039 integer (12039 binary) Root relaxation: objective 0.000000e+00, 554 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (983 simplex iterations) in 0.29 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 52 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 13:41:50 2012 Optimize a model with 29305 rows, 6605 columns and 92768 nonzeros Presolve removed 1 rows and 26 columns Presolve time: 0.12s Presolved: 29304 rows, 6579 columns, 92742 nonzeros Variable types: 0 continuous, 6579 integer (6579 binary) Root relaxation: objective 0.000000e+00, 461 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (837 simplex iterations) in 0.18 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 26 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 13:41:50 2012 Optimize a model with 14758 rows, 3862 columns and 46384 nonzeros Presolve removed 1 rows and 13 columns Presolve time: 0.05s Presolved: 14757 rows, 3849 columns, 46371 nonzeros Variable types: 0 continuous, 3849 integer (3849 binary) Root relaxation: objective 0.000000e+00, 440 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (847 simplex iterations) in 0.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 13 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 13:41:50 2012 Optimize a model with 6925 rows, 2385 columns and 21408 nonzeros Presolve removed 1 rows and 6 columns Presolve time: 0.02s Presolved: 6924 rows, 2379 columns, 21402 nonzeros Variable types: 0 continuous, 2379 integer (2379 binary) Root relaxation: objective 0.000000e+00, 439 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (2273 simplex iterations) in 0.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 6 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 13:41:51 2012 Optimize a model with 3568 rows, 1752 columns and 10704 nonzeros Presolve removed 1 rows and 3 columns Presolve time: 0.01s Presolved: 3567 rows, 1749 columns, 10701 nonzeros Variable types: 0 continuous, 1749 integer (1749 binary) Root relaxation: objective 0.000000e+00, 451 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 380 - 0.00000 - - 0s 0 0 0.00000 0 460 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (7122 simplex iterations) in 0.95 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound 1.000000000000e+00, gap - current bounds on the number of colors: 3 -- 6 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 13:41:52 2012 Optimize a model with 4687 rows, 1963 columns and 14272 nonzeros Presolve removed 1 rows and 4 columns Presolve time: 0.01s Presolved: 4686 rows, 1959 columns, 14268 nonzeros Variable types: 0 continuous, 1959 integer (1959 binary) Root relaxation: objective 0.000000e+00, 447 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 412 - 0.00000 - - 0s 0 0 0.00000 0 414 - 0.00000 - - 0s 0 0 0.00000 0 400 - 0.00000 - - 1s 0 0 0.00000 0 498 - 0.00000 - - 1s 0 0 0.00000 0 386 - 0.00000 - - 2s 0 0 0.00000 0 382 - 0.00000 - - 3s 0 0 0.00000 0 378 - 0.00000 - - 3s 0 0 0.00000 0 377 - 0.00000 - - 4s 0 0 0.00000 0 379 - 0.00000 - - 5s 0 0 0.00000 0 370 - 0.00000 - - 6s 0 0 0.00000 0 368 - 0.00000 - - 7s 0 0 0.00000 0 364 - 0.00000 - - 7s 0 0 0.00000 0 374 - 0.00000 - - 8s 0 0 0.00000 0 373 - 0.00000 - - 9s 0 0 0.00000 0 356 - 0.00000 - - 10s 0 0 0.00000 0 358 - 0.00000 - - 11s 0 0 0.00000 0 362 - 0.00000 - - 12s 0 0 0.00000 0 362 - 0.00000 - - 12s 0 2 0.00000 0 362 - 0.00000 - - 13s 98 28 0.00000 5 380 - 0.00000 - 179 15s 479 66 0.00000 21 382 - 0.00000 - 154 20s 704 88 0.00000 15 548 - 0.00000 - 157 25s 706 89 0.00000 12 390 - 0.00000 - 157 30s 708 91 0.00000 11 364 - 0.00000 - 156 36s 710 92 0.00000 20 356 - 0.00000 - 156 42s 712 93 0.00000 10 346 - 0.00000 - 156 47s 713 94 0.00000 9 348 - 0.00000 - 155 50s 715 95 0.00000 16 344 - 0.00000 - 155 55s 717 97 0.00000 10 357 - 0.00000 - 155 61s 804 87 0.00000 21 435 - 0.00000 - 292 65s 927 41 0.00000 23 391 - 0.00000 - 302 70s 1069 12 infeasible 20 - 0.00000 - 305 75s 1203 20 infeasible 21 - 0.00000 - 309 80s 1325 12 0.00000 23 390 - 0.00000 - 317 85s 1469 4 0.00000 22 505 - 0.00000 - 317 90s Cutting planes: Zero half: 18 Explored 1514 nodes (565228 simplex iterations) in 91.81 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound -, gap - current bounds on the number of colors: 4 -- 6 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 13:43:24 2012 Optimize a model with 5806 rows, 2174 columns and 17840 nonzeros Presolve removed 1 rows and 5 columns Presolve time: 0.02s Presolved: 5805 rows, 2169 columns, 17835 nonzeros Variable types: 0 continuous, 2169 integer (2169 binary) Root relaxation: objective 0.000000e+00, 456 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 257 - 0.00000 - - 0s 0 0 0.00000 0 383 - 0.00000 - - 1s * 0 0 0 0.0000000 0.00000 0.0% - 2s Explored 0 nodes (18736 simplex iterations) in 2.70 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% optimal solution found: number of colors: 5