current bounds on the number of colors: 0 -- 47
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 18:07:41 2012
Optimize a model with 12605 rows, 1627 columns and 38755 nonzeros
Presolve time: 0.05s
Presolved: 12605 rows, 1627 columns, 38755 nonzeros
Variable types: 0 continuous, 1627 integer (1627 binary)
Root relaxation: objective 0.000000e+00, 98 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 (360 simplex iterations) in 0.09 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 Thu Dec 13 18:07:41 2012
Optimize a model with 6053 rows, 1063 columns and 18535 nonzeros
Presolve time: 0.02s
Presolved: 6053 rows, 1063 columns, 18535 nonzeros
Variable types: 0 continuous, 1063 integer (1063 binary)
Root relaxation: objective 0.000000e+00, 98 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 26 - 0.00000 - - 0s
H 0 0 0.0000000 0.00000 0.0% - 0s
Explored 0 nodes (894 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 -- 11
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 18:07:42 2012
Optimize a model with 2777 rows, 781 columns and 8425 nonzeros
Presolve time: 0.01s
Presolved: 2777 rows, 781 columns, 8425 nonzeros
Variable types: 0 continuous, 781 integer (781 binary)
Root relaxation: objective 0.000000e+00, 94 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 94 - 0.00000 - - 0s
0 0 0.00000 0 94 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Explored 0 nodes (1670 simplex iterations) in 0.27 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: 5 -- 11
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 18:07:42 2012
Optimize a model with 4415 rows, 922 columns and 13480 nonzeros
Presolve time: 0.01s
Presolved: 4415 rows, 922 columns, 13480 nonzeros
Variable types: 0 continuous, 922 integer (922 binary)
Root relaxation: objective 0.000000e+00, 96 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 42 - 0.00000 - - 0s
0 0 0.00000 0 74 - 0.00000 - - 0s
0 0 0.00000 0 148 - 0.00000 - - 0s
0 0 0.00000 0 218 - 0.00000 - - 0s
0 0 0.00000 0 164 - 0.00000 - - 1s
0 0 0.00000 0 121 - 0.00000 - - 1s
0 0 0.00000 0 136 - 0.00000 - - 2s
0 0 0.00000 0 147 - 0.00000 - - 2s
0 0 0.00000 0 178 - 0.00000 - - 2s
0 0 0.00000 0 161 - 0.00000 - - 3s
0 2 0.00000 0 160 - 0.00000 - - 3s
Cutting planes:
Clique: 52
Zero half: 4
Explored 17 nodes (23511 simplex iterations) in 3.92 seconds
Thread count was 1 (of 16 available processors)
Model objective exceeds cutoff
Best objective -, best bound -, gap -
current bounds on the number of colors: 8 -- 11
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 18:07:46 2012
Optimize a model with 4961 rows, 969 columns and 15165 nonzeros
Presolve time: 0.01s
Presolved: 4961 rows, 969 columns, 15165 nonzeros
Variable types: 0 continuous, 969 integer (969 binary)
Root relaxation: objective 0.000000e+00, 103 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 52 - 0.00000 - - 0s
0 0 0.00000 0 45 - 0.00000 - - 0s
0 0 0.00000 0 107 - 0.00000 - - 0s
0 0 0.00000 0 123 - 0.00000 - - 0s
0 0 0.00000 0 16 - 0.00000 - - 0s
* 0 0 0 0.0000000 0.00000 0.0% - 0s
Cutting planes:
Clique: 5
Zero half: 3
Explored 0 nodes (8127 simplex iterations) in 1.00 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: 9