current bounds on the number of colors: 0 -- 167

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:22:41 2012

Optimize a model with 12202 rows, 14006 columns and 49966 nonzeros
Presolve removed 26 rows and 2158 columns
Presolve time: 0.12s
Presolved: 12176 rows, 11848 columns, 47808 nonzeros
Variable types: 0 continuous, 11848 integer (11848 binary)

Root relaxation: objective 0.000000e+00, 256 iterations, 0.01 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 (256 simplex iterations) in 0.13 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 -- 83

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:22:42 2012

Optimize a model with 6112 rows, 6992 columns and 24682 nonzeros
Presolve removed 26 rows and 1066 columns
Presolve time: 0.05s
Presolved: 6086 rows, 5926 columns, 23616 nonzeros
Variable types: 0 continuous, 5926 integer (5926 binary)

Root relaxation: objective 0.000000e+00, 256 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 (256 simplex iterations) in 0.06 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 -- 41

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:22:42 2012

Optimize a model with 3067 rows, 3485 columns and 12040 nonzeros
Presolve removed 26 rows and 520 columns
Presolve time: 0.02s
Presolved: 3041 rows, 2965 columns, 11520 nonzeros
Variable types: 0 continuous, 2965 integer (2965 binary)

Root relaxation: objective 0.000000e+00, 259 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 (377 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 -- 20

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:22:42 2012

Optimize a model with 1617 rows, 1815 columns and 6020 nonzeros
Presolve removed 26 rows and 260 columns
Presolve time: 0.01s
Presolved: 1591 rows, 1555 columns, 5760 nonzeros
Variable types: 0 continuous, 1555 integer (1555 binary)

Root relaxation: objective 0.000000e+00, 241 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 (241 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 -- 10

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:22:42 2012

Optimize a model with 892 rows, 980 columns and 3010 nonzeros
Presolve removed 26 rows and 130 columns
Presolve time: 0.00s
Presolved: 866 rows, 850 columns, 2880 nonzeros
Variable types: 0 continuous, 850 integer (850 binary)

Root relaxation: objective 0.000000e+00, 223 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 (301 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 -- 5

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:22:42 2012

Optimize a model with 457 rows, 479 columns and 1204 nonzeros
Presolve removed 183 rows and 217 columns
Presolve time: 0.00s
Presolved: 274 rows, 262 columns, 822 nonzeros
Variable types: 0 continuous, 262 integer (262 binary)

Root relaxation: objective 0.000000e+00, 139 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0    0.00000    0  111          -    0.00000     -      -    0s

Explored 0 nodes (412 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)

Model objective exceeds cutoff
Best objective -, best bound 1.000000000000e+00, gap -


current bounds on the number of colors: 2 -- 5

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:22:42 2012

Optimize a model with 602 rows, 646 columns and 1806 nonzeros
Presolve removed 26 rows and 78 columns
Presolve time: 0.00s
Presolved: 576 rows, 568 columns, 1728 nonzeros
Variable types: 0 continuous, 568 integer (568 binary)

Root relaxation: objective 0.000000e+00, 230 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 (306 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: 3