current bounds on the number of colors: 0 -- 14

Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:35:32 2012

Optimize a model with 91 rows, 109 columns and 329 nonzeros
Presolve removed 1 rows and 7 columns
Presolve time: 0.00s
Presolved: 90 rows, 102 columns, 322 nonzeros
Variable types: 0 continuous, 102 integer (102 binary)

Root relaxation: objective 0.000000e+00, 23 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 (23 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 -- 7

Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:35:32 2012

Optimize a model with 47 rows, 53 columns and 141 nonzeros
Presolve removed 1 rows and 3 columns
Presolve time: 0.00s
Presolved: 46 rows, 50 columns, 138 nonzeros
Variable types: 0 continuous, 50 integer (50 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 -- 3

Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:35:32 2012

Optimize a model with 25 rows, 25 columns and 47 nonzeros
Presolve removed 25 rows and 25 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 -


current bounds on the number of colors: 1 -- 3

Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:35:32 2012

Optimize a model with 36 rows, 39 columns and 94 nonzeros
Presolve removed 14 rows and 15 columns
Presolve time: 0.00s
Presolved: 22 rows, 24 columns, 66 nonzeros
Variable types: 0 continuous, 24 integer (24 binary)

Root relaxation: objective 0.000000e+00, 9 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 (9 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: 2