current bounds on the number of colors: 0 -- 65

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:43 2012

Optimize a model with 737 rows, 2101 columns and 4096 nonzeros
Presolve removed 32 rows and 1024 columns
Presolve time: 0.01s
Presolved: 705 rows, 1077 columns, 3072 nonzeros
Variable types: 0 continuous, 1077 integer (1077 binary)

Root relaxation: objective 0.000000e+00, 53 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 (53 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 -- 32

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

Optimize a model with 401 rows, 1061 columns and 2048 nonzeros
Presolve removed 32 rows and 512 columns
Presolve time: 0.00s
Presolved: 369 rows, 549 columns, 1536 nonzeros
Variable types: 0 continuous, 549 integer (549 binary)

Root relaxation: objective 0.000000e+00, 53 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 (53 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 233 rows, 541 columns and 1024 nonzeros
Presolve removed 32 rows and 256 columns
Presolve time: 0.00s
Presolved: 201 rows, 285 columns, 768 nonzeros
Variable types: 0 continuous, 285 integer (285 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 149 rows, 281 columns and 512 nonzeros
Presolve removed 32 rows and 128 columns
Presolve time: 0.00s
Presolved: 117 rows, 153 columns, 384 nonzeros
Variable types: 0 continuous, 153 integer (153 binary)

Root relaxation: objective 0.000000e+00, 49 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 (49 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 107 rows, 151 columns and 256 nonzeros
Presolve removed 77 rows and 115 columns
Presolve time: 0.00s
Presolved: 30 rows, 36 columns, 90 nonzeros
Variable types: 0 continuous, 36 integer (36 binary)

Root relaxation: objective 0.000000e+00, 15 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 (15 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 128 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