current bounds on the number of colors: 0 -- 43
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 18:02:38 2012
Optimize a model with 10207 rows, 1387 columns and 31395 nonzeros
Presolve time: 0.04s
Presolved: 10207 rows, 1387 columns, 31395 nonzeros
Variable types: 0 continuous, 1387 integer (1387 binary)
Root relaxation: objective 0.000000e+00, 92 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 (272 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 -- 21
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 18:02:38 2012
Optimize a model with 4883 rows, 914 columns and 14950 nonzeros
Presolve time: 0.01s
Presolved: 4883 rows, 914 columns, 14950 nonzeros
Variable types: 0 continuous, 914 integer (914 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 14 - 0.00000 - - 0s
H 0 0 0.0000000 0.00000 0.0% - 0s
Explored 0 nodes (1005 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 -- 10
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 18:02:39 2012
Optimize a model with 2463 rows, 699 columns and 7475 nonzeros
Presolve time: 0.01s
Presolved: 2463 rows, 699 columns, 7475 nonzeros
Variable types: 0 continuous, 699 integer (699 binary)
Root relaxation: objective 0.000000e+00, 86 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 58 - 0.00000 - - 0s
0 0 0.00000 0 54 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Explored 0 nodes (1619 simplex iterations) in 0.15 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 -- 10
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 18:02:39 2012
Optimize a model with 3431 rows, 785 columns and 10465 nonzeros
Presolve time: 0.01s
Presolved: 3431 rows, 785 columns, 10465 nonzeros
Variable types: 0 continuous, 785 integer (785 binary)
Root relaxation: objective 0.000000e+00, 86 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 44 - 0.00000 - - 0s
0 0 0.00000 0 32 - 0.00000 - - 0s
0 0 0.00000 0 230 - 0.00000 - - 0s
0 0 0.00000 0 265 - 0.00000 - - 0s
0 0 0.00000 0 266 - 0.00000 - - 1s
0 0 0.00000 0 255 - 0.00000 - - 1s
0 0 0.00000 0 262 - 0.00000 - - 1s
0 0 0.00000 0 251 - 0.00000 - - 1s
0 2 0.00000 0 251 - 0.00000 - - 2s
Cutting planes:
Gomory: 3
Clique: 32
Zero half: 9
Explored 3 nodes (16450 simplex iterations) in 2.33 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: 7 -- 10
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 18:02:41 2012
Optimize a model with 3915 rows, 828 columns and 11960 nonzeros
Presolve time: 0.01s
Presolved: 3915 rows, 828 columns, 11960 nonzeros
Variable types: 0 continuous, 828 integer (828 binary)
Root relaxation: objective 0.000000e+00, 89 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 46 - 0.00000 - - 0s
0 0 0.00000 0 154 - 0.00000 - - 0s
0 0 0.00000 0 203 - 0.00000 - - 0s
0 0 0.00000 0 173 - 0.00000 - - 0s
0 0 0.00000 0 169 - 0.00000 - - 1s
0 0 0.00000 0 188 - 0.00000 - - 1s
0 0 0.00000 0 162 - 0.00000 - - 2s
0 0 0.00000 0 206 - 0.00000 - - 2s
0 0 0.00000 0 150 - 0.00000 - - 2s
0 0 0.00000 0 169 - 0.00000 - - 3s
0 0 0.00000 0 169 - 0.00000 - - 3s
0 2 0.00000 0 169 - 0.00000 - - 3s
Cutting planes:
Clique: 66
Zero half: 7
Explored 21 nodes (29804 simplex iterations) in 4.02 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 -- 10
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 18:02:45 2012
Optimize a model with 4399 rows, 871 columns and 13455 nonzeros
Presolve time: 0.01s
Presolved: 4399 rows, 871 columns, 13455 nonzeros
Variable types: 0 continuous, 871 integer (871 binary)
Root relaxation: objective 0.000000e+00, 98 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 40 - 0.00000 - - 0s
0 0 0.00000 0 44 - 0.00000 - - 0s
0 0 0.00000 0 18 - 0.00000 - - 0s
0 0 0.00000 0 174 - 0.00000 - - 0s
0 0 0.00000 0 64 - 0.00000 - - 0s
0 0 0.00000 0 109 - 0.00000 - - 0s
0 0 0.00000 0 96 - 0.00000 - - 1s
0 0 0.00000 0 33 - 0.00000 - - 1s
0 0 0.00000 0 78 - 0.00000 - - 1s
0 0 0.00000 0 82 - 0.00000 - - 1s
0 0 0.00000 0 82 - 0.00000 - - 2s
0 2 0.00000 0 82 - 0.00000 - - 2s
* 130 4 13 0.0000000 0.00000 0.0% 55.1 3s
Cutting planes:
Clique: 31
Zero half: 2
Explored 131 nodes (24035 simplex iterations) in 3.13 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%
optimal solution found: number of colors: 9