current bounds on the number of colors: 0 -- 117 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 20:37:21 2012 Optimize a model with 40485 rows, 7482 columns and 127890 nonzeros Presolve time: 0.15s Presolved: 40485 rows, 7482 columns, 127890 nonzeros Variable types: 0 continuous, 7482 integer (7482 binary) Root relaxation: objective 0.000000e+00, 301 iterations, 0.05 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 (567 simplex iterations) in 0.25 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 -- 58 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 20:37:21 2012 Optimize a model with 20301 rows, 4089 columns and 63945 nonzeros Presolve time: 0.09s Presolved: 20301 rows, 4089 columns, 63945 nonzeros Variable types: 0 continuous, 4089 integer (4089 binary) Root relaxation: objective 0.000000e+00, 286 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 (530 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 -- 29 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 20:37:22 2012 Optimize a model with 9861 rows, 2334 columns and 30870 nonzeros Presolve time: 0.03s Presolved: 9861 rows, 2334 columns, 30870 nonzeros Variable types: 0 continuous, 2334 integer (2334 binary) Root relaxation: objective 0.000000e+00, 238 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 (465 simplex iterations) in 0.05 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 -- 14 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 20:37:22 2012 Optimize a model with 4989 rows, 1515 columns and 15435 nonzeros Presolve time: 0.01s Presolved: 4989 rows, 1515 columns, 15435 nonzeros Variable types: 0 continuous, 1515 integer (1515 binary) Root relaxation: objective 0.000000e+00, 261 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 (1325 simplex iterations) in 0.06 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 -- 7 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 20:37:22 2012 Optimize a model with 2205 rows, 1047 columns and 6615 nonzeros Presolve time: 0.01s Presolved: 2205 rows, 1047 columns, 6615 nonzeros Variable types: 0 continuous, 1047 integer (1047 binary) Root relaxation: objective 0.000000e+00, 258 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 234 - 0.00000 - - 0s 0 0 0.00000 0 232 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (3749 simplex iterations) in 0.43 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 -- 7 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 20:37:23 2012 Optimize a model with 3597 rows, 1281 columns and 11025 nonzeros Presolve time: 0.01s Presolved: 3597 rows, 1281 columns, 11025 nonzeros Variable types: 0 continuous, 1281 integer (1281 binary) Root relaxation: objective 0.000000e+00, 249 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 228 - 0.00000 - - 0s 0 0 0.00000 0 228 - 0.00000 - - 0s 0 0 0.00000 0 229 - 0.00000 - - 0s 0 0 0.00000 0 322 - 0.00000 - - 0s 0 0 0.00000 0 225 - 0.00000 - - 1s 0 0 0.00000 0 198 - 0.00000 - - 1s 0 0 0.00000 0 143 - 0.00000 - - 1s 0 0 0.00000 0 237 - 0.00000 - - 2s 0 0 0.00000 0 277 - 0.00000 - - 2s 0 0 0.00000 0 262 - 0.00000 - - 2s 0 0 0.00000 0 290 - 0.00000 - - 2s 0 0 0.00000 0 266 - 0.00000 - - 3s 0 0 0.00000 0 273 - 0.00000 - - 3s 0 0 0.00000 0 273 - 0.00000 - - 3s 0 2 0.00000 0 273 - 0.00000 - - 4s 117 41 infeasible 25 - 0.00000 - 99.2 5s * 357 2 29 0.0000000 0.00000 0.0% 64.3 5s Cutting planes: Clique: 6 Zero half: 6 Explored 358 nodes (57866 simplex iterations) in 5.48 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: 3 -- 5 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 20:37:28 2012 Optimize a model with 2901 rows, 1164 columns and 8820 nonzeros Presolve time: 0.01s Presolved: 2901 rows, 1164 columns, 8820 nonzeros Variable types: 0 continuous, 1164 integer (1164 binary) Root relaxation: objective 0.000000e+00, 254 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 230 - 0.00000 - - 0s 0 0 0.00000 0 230 - 0.00000 - - 0s 0 0 0.00000 0 327 - 0.00000 - - 0s 0 0 0.00000 0 327 - 0.00000 - - 1s 0 0 0.00000 0 295 - 0.00000 - - 1s 0 0 0.00000 0 314 - 0.00000 - - 2s 0 0 0.00000 0 303 - 0.00000 - - 2s 0 0 0.00000 0 304 - 0.00000 - - 3s 0 0 0.00000 0 313 - 0.00000 - - 3s 0 0 0.00000 0 313 - 0.00000 - - 4s 0 2 0.00000 0 313 - 0.00000 - - 4s 7 3 0.00000 3 327 - 0.00000 - 584 5s Cutting planes: Clique: 6 Zero half: 21 Explored 17 nodes (31082 simplex iterations) in 5.20 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound -, gap - optimal solution found: number of colors: 5