current bounds on the number of colors: 0 -- 66

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:44 2012

Optimize a model with 726 rows, 2198 columns and 4158 nonzeros
Presolve removed 34 rows and 1122 columns
Presolve time: 0.01s
Presolved: 692 rows, 1076 columns, 3036 nonzeros
Variable types: 0 continuous, 1076 integer (1076 binary)

Root relaxation: objective 0.000000e+00, 50 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 (50 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 -- 33

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:44 2012

Optimize a model with 386 rows, 1076 columns and 2016 nonzeros
Presolve removed 34 rows and 544 columns
Presolve time: 0.00s
Presolved: 352 rows, 532 columns, 1472 nonzeros
Variable types: 0 continuous, 532 integer (532 binary)

Root relaxation: objective 0.000000e+00, 50 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 (50 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 -- 16

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:44 2012

Optimize a model with 226 rows, 548 columns and 1008 nonzeros
Presolve removed 34 rows and 272 columns
Presolve time: 0.00s
Presolved: 192 rows, 276 columns, 736 nonzeros
Variable types: 0 continuous, 276 integer (276 binary)

Root relaxation: objective 0.000000e+00, 50 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 (50 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 Sat Dec 15 16:13:44 2012

Optimize a model with 146 rows, 284 columns and 504 nonzeros
Presolve removed 34 rows and 136 columns
Presolve time: 0.00s
Presolved: 112 rows, 148 columns, 368 nonzeros
Variable types: 0 continuous, 148 integer (148 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 Sat Dec 15 16:13:44 2012

Optimize a model with 106 rows, 152 columns and 252 nonzeros
Presolve removed 82 rows and 124 columns
Presolve time: 0.00s
Presolved: 24 rows, 28 columns, 72 nonzeros
Variable types: 0 continuous, 28 integer (28 binary)

Root relaxation: objective 0.000000e+00, 10 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 (10 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 16:13:44 2012

Optimize a model with 86 rows, 86 columns and 126 nonzeros
Presolve removed 86 rows and 86 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