current bounds on the number of colors: 0 -- 97 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:49:40 2012 Optimize a model with 22609 rows, 5125 columns and 72192 nonzeros Presolve time: 0.12s Presolved: 22609 rows, 5125 columns, 72192 nonzeros Variable types: 0 continuous, 5125 integer (5125 binary) Root relaxation: objective 0.000000e+00, 279 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 (490 simplex iterations) in 0.17 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 -- 48 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:49:40 2012 Optimize a model with 11353 rows, 2797 columns and 36096 nonzeros Presolve time: 0.05s Presolved: 11353 rows, 2797 columns, 36096 nonzeros Variable types: 0 continuous, 2797 integer (2797 binary) Root relaxation: objective 0.000000e+00, 238 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 (425 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 -- 24 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:49:40 2012 Optimize a model with 5725 rows, 1633 columns and 18048 nonzeros Presolve time: 0.02s Presolved: 5725 rows, 1633 columns, 18048 nonzeros Variable types: 0 continuous, 1633 integer (1633 binary) Root relaxation: objective 0.000000e+00, 195 iterations, 0.00 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 (392 simplex iterations) in 0.03 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 19:49:40 2012 Optimize a model with 2911 rows, 1051 columns and 9024 nonzeros Presolve time: 0.01s Presolved: 2911 rows, 1051 columns, 9024 nonzeros Variable types: 0 continuous, 1051 integer (1051 binary) Root relaxation: objective 0.000000e+00, 203 iterations, 0.00 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 (479 simplex iterations) in 0.02 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 -- 6 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:49:40 2012 Optimize a model with 1504 rows, 760 columns and 4512 nonzeros Presolve time: 0.00s Presolved: 1504 rows, 760 columns, 4512 nonzeros Variable types: 0 continuous, 760 integer (760 binary) Root relaxation: objective 0.000000e+00, 216 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 0 156 - 0.00000 - - 0s 0 0 0.00000 0 193 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (2604 simplex iterations) in 0.19 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 -- 6 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:49:41 2012 Optimize a model with 1973 rows, 857 columns and 6016 nonzeros Presolve time: 0.00s Presolved: 1973 rows, 857 columns, 6016 nonzeros Variable types: 0 continuous, 857 integer (857 binary) Root relaxation: objective 0.000000e+00, 215 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 0 184 - 0.00000 - - 0s 0 0 0.00000 0 182 - 0.00000 - - 0s 0 0 0.00000 0 172 - 0.00000 - - 0s 0 0 0.00000 0 279 - 0.00000 - - 0s 0 0 0.00000 0 221 - 0.00000 - - 0s 0 0 0.00000 0 248 - 0.00000 - - 0s 0 0 0.00000 0 256 - 0.00000 - - 0s 0 0 0.00000 0 256 - 0.00000 - - 1s 0 2 0.00000 0 256 - 0.00000 - - 1s Cutting planes: Clique: 7 Zero half: 34 Explored 199 nodes (29998 simplex iterations) in 2.27 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: 4 -- 6 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:49:43 2012 Optimize a model with 2442 rows, 954 columns and 7520 nonzeros Presolve time: 0.01s Presolved: 2442 rows, 954 columns, 7520 nonzeros Variable types: 0 continuous, 954 integer (954 binary) Root relaxation: objective 0.000000e+00, 208 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 0 139 - 0.00000 - - 0s H 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (1733 simplex iterations) in 0.08 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: 5