current bounds on the number of colors: 0 -- 92

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:43 2012

Optimize a model with 1748 rows, 4268 columns and 9200 nonzeros
Presolve removed 43 rows and 1978 columns
Presolve time: 0.02s
Presolved: 1705 rows, 2290 columns, 7222 nonzeros
Variable types: 0 continuous, 2290 integer (2290 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 -- 46

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:44 2012

Optimize a model with 920 rows, 2152 columns and 4600 nonzeros
Presolve removed 43 rows and 989 columns
Presolve time: 0.01s
Presolved: 877 rows, 1163 columns, 3611 nonzeros
Variable types: 0 continuous, 1163 integer (1163 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 -- 23

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:44 2012

Optimize a model with 488 rows, 1048 columns and 2200 nonzeros
Presolve removed 43 rows and 473 columns
Presolve time: 0.00s
Presolved: 445 rows, 575 columns, 1727 nonzeros
Variable types: 0 continuous, 575 integer (575 binary)

Root relaxation: objective 0.000000e+00, 79 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 (79 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 -- 11

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:44 2012

Optimize a model with 272 rows, 496 columns and 1000 nonzeros
Presolve removed 43 rows and 215 columns
Presolve time: 0.00s
Presolved: 229 rows, 281 columns, 785 nonzeros
Variable types: 0 continuous, 281 integer (281 binary)

Root relaxation: objective 0.000000e+00, 70 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 (70 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 16:14:44 2012

Optimize a model with 164 rows, 220 columns and 400 nonzeros
Presolve removed 106 rows and 156 columns
Presolve time: 0.00s
Presolved: 58 rows, 64 columns, 174 nonzeros
Variable types: 0 continuous, 64 integer (64 binary)

Root relaxation: objective 0.000000e+00, 27 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 (27 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 16:14:44 2012

Optimize a model with 128 rows, 128 columns and 200 nonzeros
Presolve removed 128 rows and 128 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