current bounds on the number of colors: 0 -- 87

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:30 2012

Optimize a model with 1764 rows, 3780 columns and 8772 nonzeros
Presolve removed 36 rows and 1548 columns
Presolve time: 0.02s
Presolved: 1728 rows, 2232 columns, 7224 nonzeros
Variable types: 0 continuous, 2232 integer (2232 binary)

Root relaxation: objective 0.000000e+00, 84 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 (84 simplex iterations) in 0.02 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 -- 43

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:31 2012

Optimize a model with 906 rows, 1866 columns and 4284 nonzeros
Presolve removed 36 rows and 756 columns
Presolve time: 0.01s
Presolved: 870 rows, 1110 columns, 3528 nonzeros
Variable types: 0 continuous, 1110 integer (1110 binary)

Root relaxation: objective 0.000000e+00, 84 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 (84 simplex iterations) in 0.01 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 -- 21

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:31 2012

Optimize a model with 477 rows, 909 columns and 2040 nonzeros
Presolve removed 36 rows and 360 columns
Presolve time: 0.00s
Presolved: 441 rows, 549 columns, 1680 nonzeros
Variable types: 0 continuous, 549 integer (549 binary)

Root relaxation: objective 0.000000e+00, 86 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 (86 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 -- 10

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:31 2012

Optimize a model with 282 rows, 474 columns and 1020 nonzeros
Presolve removed 36 rows and 180 columns
Presolve time: 0.00s
Presolved: 246 rows, 294 columns, 840 nonzeros
Variable types: 0 continuous, 294 integer (294 binary)

Root relaxation: objective 0.000000e+00, 72 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 (72 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 Sat Dec 15 16:14:31 2012

Optimize a model with 165 rows, 213 columns and 408 nonzeros
Presolve removed 103 rows and 147 columns
Presolve time: 0.00s
Presolved: 62 rows, 66 columns, 186 nonzeros
Variable types: 0 continuous, 66 integer (66 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 Sat Dec 15 16:14:31 2012

Optimize a model with 126 rows, 126 columns and 204 nonzeros
Presolve removed 126 rows and 126 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