current bounds on the number of colors: 0 -- 35

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:32 2012

Optimize a model with 511 rows, 623 columns and 2023 nonzeros
Presolve removed 8 rows and 136 columns
Presolve time: 0.00s
Presolved: 503 rows, 487 columns, 1887 nonzeros
Variable types: 0 continuous, 487 integer (487 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 -- 17

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:32 2012

Optimize a model with 259 rows, 308 columns and 952 nonzeros
Presolve removed 8 rows and 64 columns
Presolve time: 0.00s
Presolved: 251 rows, 244 columns, 888 nonzeros
Variable types: 0 continuous, 244 integer (244 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 -- 8

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:32 2012

Optimize a model with 147 rows, 168 columns and 476 nonzeros
Presolve removed 8 rows and 32 columns
Presolve time: 0.00s
Presolved: 139 rows, 136 columns, 444 nonzeros
Variable types: 0 continuous, 136 integer (136 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 -- 4

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:32 2012

Optimize a model with 91 rows, 98 columns and 238 nonzeros
Presolve removed 39 rows and 49 columns
Presolve time: 0.00s
Presolved: 52 rows, 49 columns, 156 nonzeros
Variable types: 0 continuous, 49 integer (49 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 -- 2

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:32 2012

Optimize a model with 63 rows, 63 columns and 119 nonzeros
Presolve removed 63 rows and 63 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