current bounds on the number of colors: 0 -- 23

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:21 2012

Optimize a model with 122 rows, 262 columns and 550 nonzeros
Presolve removed 12 rows and 132 columns
Presolve time: 0.00s
Presolved: 110 rows, 130 columns, 418 nonzeros
Variable types: 0 continuous, 130 integer (130 binary)

Root relaxation: objective 0.000000e+00, 19 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 (19 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 -- 11

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:21 2012

Optimize a model with 68 rows, 124 columns and 250 nonzeros
Presolve removed 12 rows and 60 columns
Presolve time: 0.00s
Presolved: 56 rows, 64 columns, 190 nonzeros
Variable types: 0 continuous, 64 integer (64 binary)

Root relaxation: objective 0.000000e+00, 17 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 (17 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 -- 5

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:21 2012

Optimize a model with 41 rows, 55 columns and 100 nonzeros
Presolve removed 25 rows and 38 columns
Presolve time: 0.00s
Presolved: 16 rows, 17 columns, 48 nonzeros
Variable types: 0 continuous, 17 integer (17 binary)

Root relaxation: objective 0.000000e+00, 8 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 (8 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 Fri Dec 14 18:19:21 2012

Optimize a model with 32 rows, 32 columns and 50 nonzeros
Presolve removed 32 rows and 32 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