current bounds on the number of colors: 0 -- 100 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:51:43 2012 Optimize a model with 25500 rows, 5508 columns and 81200 nonzeros Presolve time: 0.13s Presolved: 25500 rows, 5508 columns, 81200 nonzeros Variable types: 0 continuous, 5508 integer (5508 binary) Root relaxation: objective 0.000000e+00, 367 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 (638 simplex iterations) in 0.19 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 -- 50 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:51:44 2012 Optimize a model with 12800 rows, 3008 columns and 40600 nonzeros Presolve time: 0.05s Presolved: 12800 rows, 3008 columns, 40600 nonzeros Variable types: 0 continuous, 3008 integer (3008 binary) Root relaxation: objective 0.000000e+00, 231 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 (439 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% current bounds on the number of colors: 0 -- 25 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:51:44 2012 Optimize a model with 6196 rows, 1708 columns and 19488 nonzeros Presolve time: 0.02s Presolved: 6196 rows, 1708 columns, 19488 nonzeros Variable types: 0 continuous, 1708 integer (1708 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 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (380 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 19:51:44 2012 Optimize a model with 3148 rows, 1108 columns and 9744 nonzeros Presolve time: 0.01s Presolved: 3148 rows, 1108 columns, 9744 nonzeros Variable types: 0 continuous, 1108 integer (1108 binary) Root relaxation: objective 0.000000e+00, 235 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 (1068 simplex iterations) in 0.04 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 19:51:44 2012 Optimize a model with 1624 rows, 808 columns and 4872 nonzeros Presolve time: 0.00s Presolved: 1624 rows, 808 columns, 4872 nonzeros Variable types: 0 continuous, 808 integer (808 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 0 198 - 0.00000 - - 0s 0 0 0.00000 0 196 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (2344 simplex iterations) in 0.22 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 19:51:45 2012 Optimize a model with 2132 rows, 908 columns and 6496 nonzeros Presolve time: 0.01s Presolved: 2132 rows, 908 columns, 6496 nonzeros Variable types: 0 continuous, 908 integer (908 binary) Root relaxation: objective 0.000000e+00, 222 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 0 196 - 0.00000 - - 0s 0 0 0.00000 0 194 - 0.00000 - - 0s 0 0 0.00000 0 238 - 0.00000 - - 0s 0 0 0.00000 0 279 - 0.00000 - - 0s 0 0 0.00000 0 254 - 0.00000 - - 0s 0 0 0.00000 0 258 - 0.00000 - - 1s 0 0 0.00000 0 249 - 0.00000 - - 1s 0 0 0.00000 0 263 - 0.00000 - - 1s 0 0 0.00000 0 263 - 0.00000 - - 1s 0 2 0.00000 0 263 - 0.00000 - - 2s Cutting planes: Clique: 8 Zero half: 26 Explored 71 nodes (26633 simplex iterations) in 2.72 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 19:51:47 2012 Optimize a model with 2640 rows, 1008 columns and 8120 nonzeros Presolve time: 0.01s Presolved: 2640 rows, 1008 columns, 8120 nonzeros Variable types: 0 continuous, 1008 integer (1008 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 0 192 - 0.00000 - - 0s 0 0 0.00000 0 187 - 0.00000 - - 0s 0 0 0.00000 0 162 - 0.00000 - - 0s 0 0 0.00000 0 218 - 0.00000 - - 0s 0 0 0.00000 0 106 - 0.00000 - - 0s H 0 0 0.0000000 0.00000 0.0% - 0s Cutting planes: Gomory: 1 Zero half: 1 Explored 0 nodes (7391 simplex iterations) in 0.58 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