current bounds on the number of colors: 0 -- 101 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:52:47 2012 Optimize a model with 25551 rows, 5559 columns and 81400 nonzeros Presolve time: 0.13s Presolved: 25551 rows, 5559 columns, 81400 nonzeros Variable types: 0 continuous, 5559 integer (5559 binary) Root relaxation: objective 0.000000e+00, 366 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 (614 simplex iterations) in 0.19 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 Thu Dec 13 19:52:47 2012 Optimize a model with 12826 rows, 3034 columns and 40700 nonzeros Presolve time: 0.05s Presolved: 12826 rows, 3034 columns, 40700 nonzeros Variable types: 0 continuous, 3034 integer (3034 binary) Root relaxation: objective 0.000000e+00, 240 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 (419 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 -- 25 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:52:47 2012 Optimize a model with 6209 rows, 1721 columns and 19536 nonzeros Presolve time: 0.02s Presolved: 6209 rows, 1721 columns, 19536 nonzeros Variable types: 0 continuous, 1721 integer (1721 binary) Root relaxation: objective 0.000000e+00, 209 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 (429 simplex iterations) in 0.03 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 Thu Dec 13 19:52:48 2012 Optimize a model with 3155 rows, 1115 columns and 9768 nonzeros Presolve time: 0.01s Presolved: 3155 rows, 1115 columns, 9768 nonzeros Variable types: 0 continuous, 1115 integer (1115 binary) Root relaxation: objective 0.000000e+00, 216 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 (809 simplex iterations) in 0.03 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 Thu Dec 13 19:52:48 2012 Optimize a model with 1628 rows, 812 columns and 4884 nonzeros Presolve time: 0.00s Presolved: 1628 rows, 812 columns, 4884 nonzeros Variable types: 0 continuous, 812 integer (812 binary) Root relaxation: objective 0.000000e+00, 219 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 0 154 - 0.00000 - - 0s 0 0 0.00000 0 194 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (2458 simplex iterations) in 0.16 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 Thu Dec 13 19:52:48 2012 Optimize a model with 2137 rows, 913 columns and 6512 nonzeros Presolve time: 0.01s Presolved: 2137 rows, 913 columns, 6512 nonzeros Variable types: 0 continuous, 913 integer (913 binary) Root relaxation: objective 0.000000e+00, 221 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 0 200 - 0.00000 - - 0s 0 0 0.00000 0 190 - 0.00000 - - 0s 0 0 0.00000 0 282 - 0.00000 - - 0s 0 0 0.00000 0 278 - 0.00000 - - 0s 0 0 0.00000 0 268 - 0.00000 - - 0s 0 0 0.00000 0 262 - 0.00000 - - 0s 0 0 0.00000 0 265 - 0.00000 - - 0s 0 0 0.00000 0 273 - 0.00000 - - 0s 0 0 0.00000 0 273 - 0.00000 - - 1s 0 0 0.00000 0 273 - 0.00000 - - 1s 0 2 0.00000 0 273 - 0.00000 - - 1s Cutting planes: Clique: 4 Zero half: 23 Explored 51 nodes (19227 simplex iterations) in 2.10 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 Thu Dec 13 19:52:50 2012 Optimize a model with 2646 rows, 1014 columns and 8140 nonzeros Presolve time: 0.01s Presolved: 2646 rows, 1014 columns, 8140 nonzeros Variable types: 0 continuous, 1014 integer (1014 binary) Root relaxation: objective 0.000000e+00, 223 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 0 156 - 0.00000 - - 0s * 0 0 0 0.0000000 0.00000 0.0% - 0s Cutting planes: Gomory: 5 Clique: 43 MIR: 3 Zero half: 23 Explored 0 nodes (2974 simplex iterations) in 0.20 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