current bounds on the number of colors: 0 -- 200 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 08:55:59 2012 Optimize a model with 102700 rows, 21025 columns and 327500 nonzeros Presolve time: 0.34s Presolved: 102700 rows, 21025 columns, 327500 nonzeros Variable types: 0 continuous, 21025 integer (21025 binary) Root relaxation: objective 0.000000e+00, 706 iterations, 0.07 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 (1424 simplex iterations) in 0.64 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 -- 100 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 08:56:01 2012 Optimize a model with 51450 rows, 11025 columns and 163750 nonzeros Presolve time: 0.17s Presolved: 51450 rows, 11025 columns, 163750 nonzeros Variable types: 0 continuous, 11025 integer (11025 binary) Root relaxation: objective 0.000000e+00, 530 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 (937 simplex iterations) in 0.27 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 08:56:02 2012 Optimize a model with 25825 rows, 6025 columns and 81875 nonzeros Presolve time: 0.11s Presolved: 25825 rows, 6025 columns, 81875 nonzeros Variable types: 0 continuous, 6025 integer (6025 binary) Root relaxation: objective 0.000000e+00, 447 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 (814 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 08:56:02 2012 Optimize a model with 12500 rows, 3425 columns and 39300 nonzeros Presolve time: 0.04s Presolved: 12500 rows, 3425 columns, 39300 nonzeros Variable types: 0 continuous, 3425 integer (3425 binary) Root relaxation: objective 0.000000e+00, 418 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 (1013 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 -- 12 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 08:56:02 2012 Optimize a model with 6350 rows, 2225 columns and 19650 nonzeros Presolve time: 0.02s Presolved: 6350 rows, 2225 columns, 19650 nonzeros Variable types: 0 continuous, 2225 integer (2225 binary) Root relaxation: objective 0.000000e+00, 462 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 (1680 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 -- 6 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 08:56:03 2012 Optimize a model with 3275 rows, 1625 columns and 9825 nonzeros Presolve time: 0.01s Presolved: 3275 rows, 1625 columns, 9825 nonzeros Variable types: 0 continuous, 1625 integer (1625 binary) Root relaxation: objective 0.000000e+00, 450 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 0 398 - 0.00000 - - 0s 0 0 0.00000 0 400 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (5388 simplex iterations) in 0.76 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 08:56:03 2012 Optimize a model with 4300 rows, 1825 columns and 13100 nonzeros Presolve time: 0.01s Presolved: 4300 rows, 1825 columns, 13100 nonzeros Variable types: 0 continuous, 1825 integer (1825 binary) Root relaxation: objective 0.000000e+00, 446 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 0 364 - 0.00000 - - 0s 0 0 0.00000 0 362 - 0.00000 - - 1s 0 0 0.00000 0 502 - 0.00000 - - 1s 0 0 0.00000 0 356 - 0.00000 - - 2s 0 0 0.00000 0 365 - 0.00000 - - 3s 0 0 0.00000 0 352 - 0.00000 - - 4s 0 0 0.00000 0 346 - 0.00000 - - 4s 0 0 0.00000 0 348 - 0.00000 - - 5s 0 0 0.00000 0 350 - 0.00000 - - 5s 0 0 0.00000 0 352 - 0.00000 - - 6s 0 0 0.00000 0 352 - 0.00000 - - 6s 0 2 0.00000 0 352 - 0.00000 - - 7s 165 19 infeasible 16 - 0.00000 - 182 10s 531 27 0.00000 9 410 - 0.00000 - 170 15s 606 45 0.00000 17 348 - 0.00000 - 171 22s 608 47 0.00000 3 338 - 0.00000 - 170 25s 610 48 0.00000 15 330 - 0.00000 - 170 30s 613 50 0.00000 10 320 - 0.00000 - 169 36s 615 51 0.00000 3 306 - 0.00000 - 168 40s 620 55 0.00000 11 422 - 0.00000 - 295 45s 629 61 0.00000 16 472 - 0.00000 - 296 50s 729 29 infeasible 20 - 0.00000 - 306 55s 861 23 0.00000 15 427 - 0.00000 - 309 60s 990 36 infeasible 27 - 0.00000 - 315 65s 1108 14 infeasible 19 - 0.00000 - 324 70s 1220 6 infeasible 19 - 0.00000 - 330 75s 1343 9 infeasible 24 - 0.00000 - 334 80s Cutting planes: Gomory: 3 Zero half: 21 Explored 1429 nodes (530643 simplex iterations) in 83.43 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 08:57:27 2012 Optimize a model with 5325 rows, 2025 columns and 16375 nonzeros Presolve time: 0.01s Presolved: 5325 rows, 2025 columns, 16375 nonzeros Variable types: 0 continuous, 2025 integer (2025 binary) Root relaxation: objective 0.000000e+00, 438 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 0 217 - 0.00000 - - 0s 0 0 0.00000 0 194 - 0.00000 - - 0s 0 0 0.00000 0 370 - 0.00000 - - 1s 0 0 0.00000 0 375 - 0.00000 - - 1s 0 0 0.00000 0 364 - 0.00000 - - 1s * 0 0 0 0.0000000 0.00000 0.0% - 2s Cutting planes: Zero half: 247 Explored 0 nodes (15539 simplex iterations) in 2.04 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