current bounds on the number of colors: 0 -- 203 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 10:19:34 2012 Optimize a model with 106354 rows, 21554 columns and 338956 nonzeros Presolve time: 0.35s Presolved: 106354 rows, 21554 columns, 338956 nonzeros Variable types: 0 continuous, 21554 integer (21554 binary) Root relaxation: objective 0.000000e+00, 876 iterations, 0.12 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 (1358 simplex iterations) in 0.62 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 -- 101 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 10:19:36 2012 Optimize a model with 52753 rows, 11201 columns and 167800 nonzeros Presolve time: 0.16s Presolved: 52753 rows, 11201 columns, 167800 nonzeros Variable types: 0 continuous, 11201 integer (11201 binary) Root relaxation: objective 0.000000e+00, 706 iterations, 0.06 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 (1194 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 -- 50 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 10:19:37 2012 Optimize a model with 26478 rows, 6126 columns and 83900 nonzeros Presolve time: 0.11s Presolved: 26478 rows, 6126 columns, 83900 nonzeros Variable types: 0 continuous, 6126 integer (6126 binary) Root relaxation: objective 0.000000e+00, 498 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 (913 simplex iterations) in 0.16 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 -- 25 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 10:19:37 2012 Optimize a model with 12815 rows, 3487 columns and 40272 nonzeros Presolve time: 0.04s Presolved: 12815 rows, 3487 columns, 40272 nonzeros Variable types: 0 continuous, 3487 integer (3487 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 (827 simplex iterations) in 0.07 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 -- 12 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 10:19:37 2012 Optimize a model with 6509 rows, 2269 columns and 20136 nonzeros Presolve time: 0.02s Presolved: 6509 rows, 2269 columns, 20136 nonzeros Variable types: 0 continuous, 2269 integer (2269 binary) Root relaxation: objective 0.000000e+00, 424 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 (2384 simplex iterations) in 0.14 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 10:19:38 2012 Optimize a model with 3356 rows, 1660 columns and 10068 nonzeros Presolve time: 0.01s Presolved: 3356 rows, 1660 columns, 10068 nonzeros Variable types: 0 continuous, 1660 integer (1660 binary) Root relaxation: objective 0.000000e+00, 487 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 0 326 - 0.00000 - - 0s 0 0 0.00000 0 390 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (8016 simplex iterations) in 0.87 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 10:19:38 2012 Optimize a model with 4407 rows, 1863 columns and 13424 nonzeros Presolve time: 0.01s Presolved: 4407 rows, 1863 columns, 13424 nonzeros Variable types: 0 continuous, 1863 integer (1863 binary) Root relaxation: objective 0.000000e+00, 463 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 0 388 - 0.00000 - - 0s 0 0 0.00000 0 380 - 0.00000 - - 0s 0 0 0.00000 0 372 - 0.00000 - - 1s 0 0 0.00000 0 465 - 0.00000 - - 1s 0 0 0.00000 0 375 - 0.00000 - - 2s 0 0 0.00000 0 358 - 0.00000 - - 3s 0 0 0.00000 0 356 - 0.00000 - - 3s 0 0 0.00000 0 358 - 0.00000 - - 4s 0 0 0.00000 0 356 - 0.00000 - - 5s 0 0 0.00000 0 350 - 0.00000 - - 5s 0 0 0.00000 0 350 - 0.00000 - - 6s 0 0 0.00000 0 346 - 0.00000 - - 7s 0 0 0.00000 0 354 - 0.00000 - - 7s 0 0 0.00000 0 340 - 0.00000 - - 8s 0 0 0.00000 0 330 - 0.00000 - - 9s 0 0 0.00000 0 330 - 0.00000 - - 10s 0 0 0.00000 0 330 - 0.00000 - - 10s 0 2 0.00000 0 330 - 0.00000 - - 11s 113 17 infeasible 11 - 0.00000 - 250 15s 589 46 0.00000 14 456 - 0.00000 - 145 20s 705 110 0.00000 23 368 - 0.00000 - 143 27s 707 111 0.00000 21 385 - 0.00000 - 143 32s 709 112 0.00000 17 350 - 0.00000 - 143 36s 711 114 0.00000 12 377 - 0.00000 - 142 40s 713 115 0.00000 23 336 - 0.00000 - 142 45s 719 119 0.00000 16 495 - 0.00000 - 241 50s 752 115 0.00000 22 362 - 0.00000 - 246 55s 853 80 infeasible 23 - 0.00000 - 259 60s 983 49 infeasible 31 - 0.00000 - 271 65s 1077 5 infeasible 26 - 0.00000 - 287 70s 1203 11 infeasible 23 - 0.00000 - 293 75s 1321 9 infeasible 21 - 0.00000 - 297 80s Cutting planes: Zero half: 24 Explored 1363 nodes (484268 simplex iterations) in 82.25 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 10:21:01 2012 Optimize a model with 5458 rows, 2066 columns and 16780 nonzeros Presolve time: 0.02s Presolved: 5458 rows, 2066 columns, 16780 nonzeros Variable types: 0 continuous, 2066 integer (2066 binary) Root relaxation: objective 0.000000e+00, 435 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 0 382 - 0.00000 - - 0s 0 0 0.00000 0 362 - 0.00000 - - 0s * 0 0 0 0.0000000 0.00000 0.0% - 1s Explored 0 nodes (9451 simplex iterations) in 1.00 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