current bounds on the number of colors: 0 -- 37
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:35:50 2012
Optimize a model with 1441 rows, 744 columns and 4878 nonzeros
Presolve time: 0.01s
Presolved: 1441 rows, 744 columns, 4878 nonzeros
Variable types: 0 continuous, 744 integer (744 binary)
Root relaxation: objective 0.000000e+00, 85 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 (139 simplex iterations) in 0.01 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 -- 18
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:35:50 2012
Optimize a model with 739 rows, 411 columns and 2439 nonzeros
Presolve time: 0.00s
Presolved: 739 rows, 411 columns, 2439 nonzeros
Variable types: 0 continuous, 411 integer (411 binary)
Root relaxation: objective 0.000000e+00, 78 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 (125 simplex iterations) in 0.00 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%
current bounds on the number of colors: 0 -- 9
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:35:50 2012
Optimize a model with 349 rows, 226 columns and 1084 nonzeros
Presolve time: 0.00s
Presolved: 349 rows, 226 columns, 1084 nonzeros
Variable types: 0 continuous, 226 integer (226 binary)
Root relaxation: objective 0.000000e+00, 81 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 (155 simplex iterations) in 0.00 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%
current bounds on the number of colors: 0 -- 4
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:35:50 2012
Optimize a model with 193 rows, 152 columns and 542 nonzeros
Presolve removed 37 rows and 37 columns
Presolve time: 0.00s
Presolved: 156 rows, 115 columns, 468 nonzeros
Variable types: 0 continuous, 115 integer (115 binary)
Root relaxation: objective 0.000000e+00, 38 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 37 - 0.00000 - - 0s
Explored 0 nodes (141 simplex iterations) in 0.00 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: 2 -- 4
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:35:50 2012
Optimize a model with 271 rows, 189 columns and 813 nonzeros
Presolve time: 0.00s
Presolved: 271 rows, 189 columns, 813 nonzeros
Variable types: 0 continuous, 189 integer (189 binary)
Root relaxation: objective 0.000000e+00, 80 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 59 - 0.00000 - - 0s
H 0 0 0.0000000 0.00000 0.0% - 0s
Explored 0 nodes (258 simplex iterations) in 0.00 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: 3