current bounds on the number of colors: 0 -- 114 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 20:14:00 2012 Optimize a model with 37278 rows, 7150 columns and 117990 nonzeros Presolve time: 0.15s Presolved: 37278 rows, 7150 columns, 117990 nonzeros Variable types: 0 continuous, 7150 integer (7150 binary) Root relaxation: objective 0.000000e+00, 315 iterations, 0.04 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 (565 simplex iterations) in 0.24 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 -- 57 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 20:14:01 2012 Optimize a model with 18370 rows, 3844 columns and 57960 nonzeros Presolve time: 0.08s Presolved: 18370 rows, 3844 columns, 57960 nonzeros Variable types: 0 continuous, 3844 integer (3844 binary) Root relaxation: objective 0.000000e+00, 278 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 (540 simplex iterations) in 0.11 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 -- 28 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 20:14:01 2012 Optimize a model with 9242 rows, 2248 columns and 28980 nonzeros Presolve time: 0.03s Presolved: 9242 rows, 2248 columns, 28980 nonzeros Variable types: 0 continuous, 2248 integer (2248 binary) Root relaxation: objective 0.000000e+00, 236 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 (445 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 20:14:01 2012 Optimize a model with 4678 rows, 1450 columns and 14490 nonzeros Presolve time: 0.01s Presolved: 4678 rows, 1450 columns, 14490 nonzeros Variable types: 0 continuous, 1450 integer (1450 binary) Root relaxation: objective 0.000000e+00, 238 iterations, 0.00 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 (805 simplex iterations) in 0.04 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% current bounds on the number of colors: 0 -- 7 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 20:14:01 2012 Optimize a model with 2070 rows, 994 columns and 6210 nonzeros Presolve time: 0.01s Presolved: 2070 rows, 994 columns, 6210 nonzeros Variable types: 0 continuous, 994 integer (994 binary) Root relaxation: objective 0.000000e+00, 244 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 0 190 - 0.00000 - - 0s 0 0 0.00000 0 245 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (3923 simplex iterations) in 0.40 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 20:14:02 2012 Optimize a model with 3374 rows, 1222 columns and 10350 nonzeros Presolve time: 0.01s Presolved: 3374 rows, 1222 columns, 10350 nonzeros Variable types: 0 continuous, 1222 integer (1222 binary) Root relaxation: objective 0.000000e+00, 248 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 0 212 - 0.00000 - - 0s 0 0 0.00000 0 239 - 0.00000 - - 0s 0 0 0.00000 0 275 - 0.00000 - - 0s 0 0 0.00000 0 306 - 0.00000 - - 0s 0 0 0.00000 0 292 - 0.00000 - - 1s * 0 0 0 0.0000000 0.00000 0.0% - 1s Cutting planes: Gomory: 1 Clique: 5 Zero half: 137 Explored 0 nodes (13433 simplex iterations) in 1.47 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 20:14:03 2012 Optimize a model with 2722 rows, 1108 columns and 8280 nonzeros Presolve time: 0.01s Presolved: 2722 rows, 1108 columns, 8280 nonzeros Variable types: 0 continuous, 1108 integer (1108 binary) Root relaxation: objective 0.000000e+00, 243 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 0 158 - 0.00000 - - 0s 0 0 0.00000 0 180 - 0.00000 - - 0s 0 0 0.00000 0 316 - 0.00000 - - 0s 0 0 0.00000 0 308 - 0.00000 - - 1s 0 0 0.00000 0 304 - 0.00000 - - 1s 0 0 0.00000 0 305 - 0.00000 - - 1s 0 0 0.00000 0 304 - 0.00000 - - 1s 0 0 0.00000 0 310 - 0.00000 - - 2s 0 0 0.00000 0 318 - 0.00000 - - 2s 0 0 0.00000 0 321 - 0.00000 - - 3s 0 0 0.00000 0 320 - 0.00000 - - 3s 0 2 0.00000 0 319 - 0.00000 - - 3s Cutting planes: Clique: 12 Zero half: 21 Explored 23 nodes (25853 simplex iterations) in 4.09 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