current bounds on the number of colors: 0 -- 37

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:05 2012

Optimize a model with 199 rows, 675 columns and 1152 nonzeros
Presolve removed 22 rows and 396 columns
Presolve time: 0.00s
Presolved: 177 rows, 279 columns, 756 nonzeros
Variable types: 0 continuous, 279 integer (279 binary)

Root relaxation: objective 0.000000e+00, 24 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 (24 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 -- 18

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:05 2012

Optimize a model with 118 rows, 342 columns and 576 nonzeros
Presolve removed 22 rows and 198 columns
Presolve time: 0.00s
Presolved: 96 rows, 144 columns, 378 nonzeros
Variable types: 0 continuous, 144 integer (144 binary)

Root relaxation: objective 0.000000e+00, 24 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 (24 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 Sat Dec 15 16:13:05 2012

Optimize a model with 73 rows, 157 columns and 256 nonzeros
Presolve removed 22 rows and 88 columns
Presolve time: 0.00s
Presolved: 51 rows, 69 columns, 168 nonzeros
Variable types: 0 continuous, 69 integer (69 binary)

Root relaxation: objective 0.000000e+00, 20 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 (20 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 Sat Dec 15 16:13:05 2012

Optimize a model with 55 rows, 83 columns and 128 nonzeros
Presolve removed 43 rows and 68 columns
Presolve time: 0.00s
Presolved: 12 rows, 15 columns, 36 nonzeros
Variable types: 0 continuous, 15 integer (15 binary)

Root relaxation: objective 0.000000e+00, 6 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 (6 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 -- 2

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:05 2012

Optimize a model with 46 rows, 46 columns and 64 nonzeros
Presolve removed 46 rows and 46 columns
Presolve time: 0.00s

Explored 0 nodes (0 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)

Model objective exceeds cutoff
Best objective -, best bound -, gap -


optimal solution found: number of colors: 2