current bounds on the number of colors: 0 -- 51
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 18:18:44 2012
Optimize a model with 16001 rows, 1913 columns and 49125 nonzeros
Presolve time: 0.06s
Presolved: 16001 rows, 1913 columns, 49125 nonzeros
Variable types: 0 continuous, 1913 integer (1913 binary)
Root relaxation: objective 0.000000e+00, 109 iterations, 0.02 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 (287 simplex iterations) in 0.10 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 -- 25
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 18:18:44 2012
Optimize a model with 7707 rows, 1250 columns and 23580 nonzeros
Presolve time: 0.02s
Presolved: 7707 rows, 1250 columns, 23580 nonzeros
Variable types: 0 continuous, 1250 integer (1250 binary)
Root relaxation: objective 0.000000e+00, 112 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 (500 simplex iterations) in 0.06 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 -- 12
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 18:18:45 2012
Optimize a model with 3879 rows, 944 columns and 11790 nonzeros
Presolve time: 0.01s
Presolved: 3879 rows, 944 columns, 11790 nonzeros
Variable types: 0 continuous, 944 integer (944 binary)
Root relaxation: objective 0.000000e+00, 104 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 66 - 0.00000 - - 0s
0 0 0.00000 0 60 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Explored 0 nodes (2633 simplex iterations) in 0.37 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: 6 -- 12
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 18:18:45 2012
Optimize a model with 5793 rows, 1097 columns and 17685 nonzeros
Presolve time: 0.02s
Presolved: 5793 rows, 1097 columns, 17685 nonzeros
Variable types: 0 continuous, 1097 integer (1097 binary)
Root relaxation: objective 0.000000e+00, 114 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 22 - 0.00000 - - 0s
* 0 0 0 0.0000000 0.00000 0.0% - 0s
Cutting planes:
Gomory: 1
Clique: 14
MIR: 18
Zero half: 15
Explored 0 nodes (1276 simplex iterations) in 0.10 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: 6 -- 9
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 18:18:45 2012
Optimize a model with 4517 rows, 995 columns and 13755 nonzeros
Presolve time: 0.01s
Presolved: 4517 rows, 995 columns, 13755 nonzeros
Variable types: 0 continuous, 995 integer (995 binary)
Root relaxation: objective 0.000000e+00, 102 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 50 - 0.00000 - - 0s
0 0 0.00000 0 46 - 0.00000 - - 0s
0 0 0.00000 0 280 - 0.00000 - - 0s
0 0 0.00000 0 325 - 0.00000 - - 1s
0 0 0.00000 0 293 - 0.00000 - - 1s
0 0 infeasible 0 - 0.10000 - - 2s
Cutting planes:
Clique: 92
Zero half: 218
Explored 0 nodes (13619 simplex iterations) in 2.35 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: 7 -- 9
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 18:18:48 2012
Optimize a model with 5155 rows, 1046 columns and 15720 nonzeros
Presolve time: 0.01s
Presolved: 5155 rows, 1046 columns, 15720 nonzeros
Variable types: 0 continuous, 1046 integer (1046 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 38 - 0.00000 - - 0s
0 0 0.00000 0 36 - 0.00000 - - 0s
0 0 0.00000 0 192 - 0.00000 - - 0s
0 0 0.00000 0 233 - 0.00000 - - 1s
0 0 0.00000 0 233 - 0.00000 - - 1s
0 0 0.00000 0 213 - 0.00000 - - 2s
0 0 0.00000 0 213 - 0.00000 - - 2s
0 0 0.00000 0 259 - 0.00000 - - 3s
0 0 0.00000 0 259 - 0.00000 - - 3s
0 2 0.00000 0 259 - 0.00000 - - 4s
Cutting planes:
Clique: 79
Zero half: 5
Explored 13 nodes (28011 simplex iterations) in 4.70 seconds
Thread count was 1 (of 16 available processors)
Model objective exceeds cutoff
Best objective -, best bound -, gap -
optimal solution found: number of colors: 9