current bounds on the number of colors: 0 -- 28

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:25 2012

Optimize a model with 364 rows, 416 columns and 1400 nonzeros
Presolve removed 2 rows and 28 columns
Presolve time: 0.00s
Presolved: 362 rows, 388 columns, 1372 nonzeros
Variable types: 0 continuous, 388 integer (388 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 -- 14

Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:19:25 2012

Optimize a model with 196 rows, 220 columns and 700 nonzeros
Presolve removed 2 rows and 14 columns
Presolve time: 0.00s
Presolved: 194 rows, 206 columns, 686 nonzeros
Variable types: 0 continuous, 206 integer (206 binary)

Root relaxation: objective 0.000000e+00, 42 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 (42 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 18:19:25 2012

Optimize a model with 100 rows, 108 columns and 300 nonzeros
Presolve removed 2 rows and 6 columns
Presolve time: 0.00s
Presolved: 98 rows, 102 columns, 294 nonzeros
Variable types: 0 continuous, 102 integer (102 binary)

Root relaxation: objective 0.000000e+00, 41 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 (41 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 18:19:25 2012

Optimize a model with 52 rows, 52 columns and 100 nonzeros
Presolve removed 52 rows and 52 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 18:19:25 2012

Optimize a model with 76 rows, 80 columns and 200 nonzeros
Presolve removed 30 rows and 33 columns
Presolve time: 0.00s
Presolved: 46 rows, 47 columns, 138 nonzeros
Variable types: 0 continuous, 47 integer (47 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%


optimal solution found: number of colors: 2