current bounds on the number of colors: 0 -- 29

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:26 2012

Optimize a model with 435 rows, 435 columns and 1624 nonzeros
Presolve removed 2 rows and 28 columns
Presolve time: 0.00s
Presolved: 433 rows, 407 columns, 1596 nonzeros
Variable types: 0 continuous, 407 integer (407 binary)

Root relaxation: objective 0.000000e+00, 46 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 (46 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 -- 14

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:26 2012

Optimize a model with 232 rows, 232 columns and 812 nonzeros
Presolve removed 2 rows and 14 columns
Presolve time: 0.00s
Presolved: 230 rows, 218 columns, 798 nonzeros
Variable types: 0 continuous, 218 integer (218 binary)

Root relaxation: objective 0.000000e+00, 44 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 (44 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 Fri Dec 14 18:19:26 2012

Optimize a model with 116 rows, 116 columns and 348 nonzeros
Presolve removed 2 rows and 6 columns
Presolve time: 0.00s
Presolved: 114 rows, 110 columns, 342 nonzeros
Variable types: 0 continuous, 110 integer (110 binary)

Root relaxation: objective 0.000000e+00, 43 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 (43 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 Fri Dec 14 18:19:26 2012

Optimize a model with 58 rows, 58 columns and 116 nonzeros
Presolve removed 58 rows and 58 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 Fri Dec 14 18:19:26 2012

Optimize a model with 87 rows, 87 columns and 232 nonzeros
Presolve removed 31 rows and 34 columns
Presolve time: 0.00s
Presolved: 56 rows, 53 columns, 168 nonzeros
Variable types: 0 continuous, 53 integer (53 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%


optimal solution found: number of colors: 2