current bounds on the number of colors: 0 -- 178

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:24:39 2012

Optimize a model with 14507 rows, 16003 columns and 58829 nonzeros
Presolve removed 28 rows and 2492 columns
Presolve time: 0.12s
Presolved: 14479 rows, 13511 columns, 56337 nonzeros
Variable types: 0 continuous, 13511 integer (13511 binary)

Root relaxation: objective 0.000000e+00, 264 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 (264 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 -- 89

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:24:40 2012

Optimize a model with 7262 rows, 7993 columns and 29084 nonzeros
Presolve removed 28 rows and 1232 columns
Presolve time: 0.06s
Presolved: 7234 rows, 6761 columns, 27852 nonzeros
Variable types: 0 continuous, 6761 integer (6761 binary)

Root relaxation: objective 0.000000e+00, 264 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 (264 simplex iterations) in 0.07 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 -- 44

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:24:40 2012

Optimize a model with 3720 rows, 4077 columns and 14542 nonzeros
Presolve removed 28 rows and 616 columns
Presolve time: 0.02s
Presolved: 3692 rows, 3461 columns, 13926 nonzeros
Variable types: 0 continuous, 3461 integer (3461 binary)

Root relaxation: objective 0.000000e+00, 263 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 (263 simplex iterations) in 0.03 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 -- 22

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:24:40 2012

Optimize a model with 1949 rows, 2119 columns and 7271 nonzeros
Presolve removed 28 rows and 308 columns
Presolve time: 0.01s
Presolved: 1921 rows, 1811 columns, 6963 nonzeros
Variable types: 0 continuous, 1811 integer (1811 binary)

Root relaxation: objective 0.000000e+00, 258 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 (372 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 -- 11

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:24:40 2012

Optimize a model with 983 rows, 1051 columns and 3305 nonzeros
Presolve removed 28 rows and 140 columns
Presolve time: 0.00s
Presolved: 955 rows, 911 columns, 3165 nonzeros
Variable types: 0 continuous, 911 integer (911 binary)

Root relaxation: objective 0.000000e+00, 246 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 (335 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 16:24:40 2012

Optimize a model with 500 rows, 517 columns and 1322 nonzeros
Presolve removed 184 rows and 215 columns
Presolve time: 0.00s
Presolved: 316 rows, 302 columns, 948 nonzeros
Variable types: 0 continuous, 302 integer (302 binary)

Root relaxation: objective 0.000000e+00, 157 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  133          -    0.00000     -      -    0s

Explored 0 nodes (522 simplex iterations) in 0.01 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 16:24:40 2012

Optimize a model with 661 rows, 695 columns and 1983 nonzeros
Presolve removed 28 rows and 84 columns
Presolve time: 0.00s
Presolved: 633 rows, 611 columns, 1899 nonzeros
Variable types: 0 continuous, 611 integer (611 binary)

Root relaxation: objective 0.000000e+00, 257 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 (350 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