current bounds on the number of colors: 0 -- 185

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 03:11:28 2012

Optimize a model with 80777 rows, 17896 columns and 258796 nonzeros
Presolve time: 0.25s
Presolved: 80777 rows, 17896 columns, 258796 nonzeros
Variable types: 0 continuous, 17896 integer (17896 binary)

Root relaxation: objective 0.000000e+00, 687 iterations, 0.06 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 (1087 simplex iterations) in 0.44 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 -- 92

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 03:11:29 2012

Optimize a model with 40481 rows, 9386 columns and 129398 nonzeros
Presolve time: 0.16s
Presolved: 40481 rows, 9386 columns, 129398 nonzeros
Variable types: 0 continuous, 9386 integer (9386 binary)

Root relaxation: objective 0.000000e+00, 510 iterations, 0.03 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 (917 simplex iterations) in 0.24 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 -- 46

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 03:11:30 2012

Optimize a model with 20333 rows, 5131 columns and 64699 nonzeros
Presolve time: 0.08s
Presolved: 20333 rows, 5131 columns, 64699 nonzeros
Variable types: 0 continuous, 5131 integer (5131 binary)

Root relaxation: objective 0.000000e+00, 438 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 (1042 simplex iterations) in 0.14 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 -- 23

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 03:11:30 2012

Optimize a model with 9821 rows, 2911 columns and 30943 nonzeros
Presolve time: 0.03s
Presolved: 9821 rows, 2911 columns, 30943 nonzeros
Variable types: 0 continuous, 2911 integer (2911 binary)

Root relaxation: objective 0.000000e+00, 387 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 (738 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 -- 11

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 03:11:30 2012

Optimize a model with 4565 rows, 1801 columns and 14065 nonzeros
Presolve time: 0.01s
Presolved: 4565 rows, 1801 columns, 14065 nonzeros
Variable types: 0 continuous, 1801 integer (1801 binary)

Root relaxation: objective 0.000000e+00, 396 iterations, 0.01 seconds

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

     0     0    0.00000    0  287          -    0.00000     -      -    0s
H    0     0                       0.0000000    0.00000   0.0%     -    0s

Explored 0 nodes (4353 simplex iterations) in 0.36 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 03:11:31 2012

Optimize a model with 1937 rows, 1246 columns and 5626 nonzeros
Presolve removed 185 rows and 185 columns
Presolve time: 0.00s
Presolved: 1752 rows, 1061 columns, 5256 nonzeros
Variable types: 0 continuous, 1061 integer (1061 binary)

Root relaxation: objective 0.000000e+00, 191 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  185          -    0.00000     -      -    0s
     0     0 infeasible    0               -    0.10000     -      -    0s

Explored 0 nodes (794 simplex iterations) in 0.02 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 03:11:31 2012

Optimize a model with 2813 rows, 1431 columns and 8439 nonzeros
Presolve time: 0.01s
Presolved: 2813 rows, 1431 columns, 8439 nonzeros
Variable types: 0 continuous, 1431 integer (1431 binary)

Root relaxation: objective 0.000000e+00, 407 iterations, 0.01 seconds

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

     0     0    0.00000    0  366          -    0.00000     -      -    0s
     0     0    0.00000    0  364          -    0.00000     -      -    0s
     0     0 infeasible    0               -    0.10000     -      -    0s

Explored 0 nodes (4447 simplex iterations) in 0.51 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 -- 5

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 03:11:31 2012

Optimize a model with 3689 rows, 1616 columns and 11252 nonzeros
Presolve time: 0.01s
Presolved: 3689 rows, 1616 columns, 11252 nonzeros
Variable types: 0 continuous, 1616 integer (1616 binary)

Root relaxation: objective 0.000000e+00, 429 iterations, 0.01 seconds

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

     0     0    0.00000    0  354          -    0.00000     -      -    0s
     0     0    0.00000    0  350          -    0.00000     -      -    0s
     0     0    0.00000    0  357          -    0.00000     -      -    0s
     0     0    0.00000    0  342          -    0.00000     -      -    0s
     0     0    0.00000    0  510          -    0.00000     -      -    1s
     0     0    0.00000    0  334          -    0.00000     -      -    1s
     0     0    0.00000    0  330          -    0.00000     -      -    2s
     0     0    0.00000    0  326          -    0.00000     -      -    2s
     0     0    0.00000    0  322          -    0.00000     -      -    2s
     0     0    0.00000    0  314          -    0.00000     -      -    3s
     0     0    0.00000    0  310          -    0.00000     -      -    3s
     0     0    0.00000    0  300          -    0.00000     -      -    4s
     0     0    0.00000    0  296          -    0.00000     -      -    4s
     0     0    0.00000    0  292          -    0.00000     -      -    5s
     0     0    0.00000    0  290          -    0.00000     -      -    5s
     0     0    0.00000    0  288          -    0.00000     -      -    6s
     0     0    0.00000    0  290          -    0.00000     -      -    6s
     0     0    0.00000    0  288          -    0.00000     -      -    7s
     0     0    0.00000    0  296          -    0.00000     -      -    7s
     0     0    0.00000    0  276          -    0.00000     -      -    8s
     0     0    0.00000    0  268          -    0.00000     -      -    8s
     0     0    0.00000    0  266          -    0.00000     -      -    8s
     0     0    0.00000    0  266          -    0.00000     -      -    9s
     0     0    0.00000    0  266          -    0.00000     -      -    9s
     0     2    0.00000    0  266          -    0.00000     -      -   10s
   411    92 infeasible   20               -    0.00000     -    144   15s
   903   126    0.00000   21  357          -    0.00000     -    143   20s
   908   130    0.00000   18  304          -    0.00000     -    142   25s
   912   132    0.00000   21  281          -    0.00000     -    141   30s
  1049   142 infeasible   32               -    0.00000     -    196   35s
  1383   132 infeasible   31               -    0.00000     -    197   40s
  1711   182 infeasible   31               -    0.00000     -    199   45s
  2026   169    0.00000   24  332          -    0.00000     -    202   50s
  2330   171 infeasible   27               -    0.00000     -    206   55s
  2628   183 infeasible   32               -    0.00000     -    208   60s
  2926   169    0.00000   28  366          -    0.00000     -    210   65s
  3205   146 infeasible   31               -    0.00000     -    214   70s
  3496   140 infeasible   27               -    0.00000     -    215   75s
  3867   167 infeasible   31               -    0.00000     -    213   80s
  4235   165 infeasible   30               -    0.00000     -    212   85s
  4583   163 infeasible   32               -    0.00000     -    212   90s
  4957   191 infeasible   35               -    0.00000     -    211   95s
  5297   177 infeasible   30               -    0.00000     -    212  100s
  5630   180    0.00000   28  328          -    0.00000     -    212  105s
  5956   164    0.00000   34  418          -    0.00000     -    213  110s
  6255   139 infeasible   32               -    0.00000     -    213  115s
  6580   124 infeasible   32               -    0.00000     -    213  120s
  6838   132 infeasible   24               -    0.00000     -    215  125s
  7189   143 infeasible   28               -    0.00000     -    214  130s
  7511   139    0.00000   32  322          -    0.00000     -    215  135s
  7858   136    0.00000   31  386          -    0.00000     -    215  140s
  8146   102    0.00000   25  328          -    0.00000     -    215  145s
  8440    62 infeasible   33               -    0.00000     -    216  150s
  8694    32    0.00000   26  370          -    0.00000     -    217  155s
  8962     8    0.00000   19  410          -    0.00000     -    217  160s
  9253    19 infeasible   30               -    0.00000     -    218  165s
  9538    24    0.00000   25  322          -    0.00000     -    219  170s
  9848    14    0.00000   27  352          -    0.00000     -    219  175s
 10139    19 infeasible   29               -    0.00000     -    219  180s
 10410    10    0.00000   25  358          -    0.00000     -    220  185s
 10697    19 infeasible   28               -    0.00000     -    220  190s
 10978    12 infeasible   28               -    0.00000     -    221  195s
 11304    18 infeasible   26               -    0.00000     -    221  200s
 11633    15 infeasible   26               -    0.00000     -    221  205s
 11957    15 infeasible   26               -    0.00000     -    221  210s
 12330    38 infeasible   31               -    0.00000     -    220  215s
 12674    12 infeasible   26               -    0.00000     -    220  220s
 13001     7    0.00000   22  318          -    0.00000     -    220  225s
 13334    14    0.00000   30  324          -    0.00000     -    220  230s
 13593     7    0.00000   28  351          -    0.00000     -    221  235s

Cutting planes:
  Gomory: 1
  Zero half: 19

Explored 13765 nodes (3121890 simplex iterations) in 238.29 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