current bounds on the number of colors: 0 -- 117

Gurobi 5.0.1 (linux64) logging started Thu Dec 13 20:37:00 2012

Optimize a model with 39673 rows, 7468 columns and 125454 nonzeros
Presolve time: 0.16s
Presolved: 39673 rows, 7468 columns, 125454 nonzeros
Variable types: 0 continuous, 7468 integer (7468 binary)

Root relaxation: objective 0.000000e+00, 302 iterations, 0.05 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 (554 simplex iterations) in 0.26 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 -- 58

Gurobi 5.0.1 (linux64) logging started Thu Dec 13 20:37:00 2012

Optimize a model with 19895 rows, 4075 columns and 62727 nonzeros
Presolve time: 0.08s
Presolved: 19895 rows, 4075 columns, 62727 nonzeros
Variable types: 0 continuous, 4075 integer (4075 binary)

Root relaxation: objective 0.000000e+00, 267 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 (509 simplex iterations) in 0.12 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 -- 29

Gurobi 5.0.1 (linux64) logging started Thu Dec 13 20:37:01 2012

Optimize a model with 9665 rows, 2320 columns and 30282 nonzeros
Presolve time: 0.03s
Presolved: 9665 rows, 2320 columns, 30282 nonzeros
Variable types: 0 continuous, 2320 integer (2320 binary)

Root relaxation: objective 0.000000e+00, 239 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 (466 simplex iterations) in 0.05 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 -- 14

Gurobi 5.0.1 (linux64) logging started Thu Dec 13 20:37:01 2012

Optimize a model with 4891 rows, 1501 columns and 15141 nonzeros
Presolve time: 0.01s
Presolved: 4891 rows, 1501 columns, 15141 nonzeros
Variable types: 0 continuous, 1501 integer (1501 binary)

Root relaxation: objective 0.000000e+00, 262 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 (855 simplex iterations) in 0.04 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 -- 7

Gurobi 5.0.1 (linux64) logging started Thu Dec 13 20:37:01 2012

Optimize a model with 2163 rows, 1033 columns and 6489 nonzeros
Presolve time: 0.01s
Presolved: 2163 rows, 1033 columns, 6489 nonzeros
Variable types: 0 continuous, 1033 integer (1033 binary)

Root relaxation: objective 0.000000e+00, 247 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  200          -    0.00000     -      -    0s
     0     0    0.00000    0  278          -    0.00000     -      -    0s
     0     0 infeasible    0               -    0.10000     -      -    0s

Explored 0 nodes (4329 simplex iterations) in 0.43 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: 3 -- 7

Gurobi 5.0.1 (linux64) logging started Thu Dec 13 20:37:01 2012

Optimize a model with 3527 rows, 1267 columns and 10815 nonzeros
Presolve time: 0.01s
Presolved: 3527 rows, 1267 columns, 10815 nonzeros
Variable types: 0 continuous, 1267 integer (1267 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    0.00000    0  232          -    0.00000     -      -    0s
     0     0    0.00000    0  220          -    0.00000     -      -    0s
     0     0    0.00000    0  240          -    0.00000     -      -    0s
     0     0    0.00000    0  334          -    0.00000     -      -    0s
     0     0    0.00000    0  227          -    0.00000     -      -    1s
     0     0    0.00000    0  270          -    0.00000     -      -    1s
     0     0    0.00000    0  270          -    0.00000     -      -    1s
     0     0    0.00000    0  278          -    0.00000     -      -    2s
     0     0    0.00000    0  271          -    0.00000     -      -    2s
     0     2    0.00000    0  271          -    0.00000     -      -    2s
*  210     0              28       0.0000000    0.00000   0.0%  43.7    3s

Cutting planes:
  Clique: 5
  Zero half: 12

Explored 211 nodes (30731 simplex iterations) in 3.22 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: 3 -- 5

Gurobi 5.0.1 (linux64) logging started Thu Dec 13 20:37:05 2012

Optimize a model with 2845 rows, 1150 columns and 8652 nonzeros
Presolve time: 0.01s
Presolved: 2845 rows, 1150 columns, 8652 nonzeros
Variable types: 0 continuous, 1150 integer (1150 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    0.00000    0  228          -    0.00000     -      -    0s
     0     0    0.00000    0  226          -    0.00000     -      -    0s
     0     0    0.00000    0  335          -    0.00000     -      -    0s
     0     0    0.00000    0  337          -    0.00000     -      -    0s
     0     0    0.00000    0  337          -    0.00000     -      -    1s
     0     0    0.00000    0  337          -    0.00000     -      -    2s
     0     0    0.00000    0  337          -    0.00000     -      -    2s
     0     2    0.00000    0  337          -    0.00000     -      -    2s

Cutting planes:
  Clique: 7
  Zero half: 8

Explored 32 nodes (22944 simplex iterations) in 3.48 seconds
Thread count was 1 (of 16 available processors)

Model objective exceeds cutoff
Best objective -, best bound -, gap -


optimal solution found: number of colors: 5