current bounds on the number of colors: 0 -- 205 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:31:29 2012 Optimize a model with 20707 rows, 21111 columns and 82416 nonzeros Presolve removed 31 rows and 3162 columns Presolve time: 0.13s Presolved: 20676 rows, 17949 columns, 79254 nonzeros Variable types: 0 continuous, 17949 integer (17949 binary) Root relaxation: objective 0.000000e+00, 320 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 (320 simplex iterations) in 0.15 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 -- 102 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:31:30 2012 Optimize a model with 10456 rows, 10656 columns and 41208 nonzeros Presolve removed 31 rows and 1581 columns Presolve time: 0.10s Presolved: 10425 rows, 9075 columns, 39627 nonzeros Variable types: 0 continuous, 9075 integer (9075 binary) Root relaxation: objective 0.000000e+00, 320 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 (320 simplex iterations) in 0.11 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 -- 51 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:31:30 2012 Optimize a model with 5230 rows, 5326 columns and 20200 nonzeros Presolve removed 31 rows and 775 columns Presolve time: 0.03s Presolved: 5199 rows, 4551 columns, 19425 nonzeros Variable types: 0 continuous, 4551 integer (4551 binary) Root relaxation: objective 0.000000e+00, 319 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 (319 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 -- 25 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:31:30 2012 Optimize a model with 2617 rows, 2661 columns and 9696 nonzeros Presolve removed 31 rows and 372 columns Presolve time: 0.01s Presolved: 2586 rows, 2289 columns, 9324 nonzeros Variable types: 0 continuous, 2289 integer (2289 binary) Root relaxation: objective 0.000000e+00, 318 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 (318 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 -- 12 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:31:30 2012 Optimize a model with 1411 rows, 1431 columns and 4848 nonzeros Presolve removed 31 rows and 186 columns Presolve time: 0.00s Presolved: 1380 rows, 1245 columns, 4662 nonzeros Variable types: 0 continuous, 1245 integer (1245 binary) Root relaxation: objective 0.000000e+00, 297 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 (423 simplex iterations) in 0.01 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 Sat Dec 15 16:31:30 2012 Optimize a model with 808 rows, 816 columns and 2424 nonzeros Presolve removed 31 rows and 93 columns Presolve time: 0.00s Presolved: 777 rows, 723 columns, 2331 nonzeros Variable types: 0 continuous, 723 integer (723 binary) Root relaxation: objective 0.000000e+00, 300 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 (414 simplex iterations) in 0.01 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 -- 3 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:31:30 2012 Optimize a model with 406 rows, 406 columns and 808 nonzeros Presolve removed 406 rows and 406 columns Presolve time: 0.00s Explored 0 nodes (0 simplex iterations) in 0.00 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: 1 -- 3 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:31:30 2012 Optimize a model with 607 rows, 611 columns and 1616 nonzeros Presolve removed 213 rows and 248 columns Presolve time: 0.00s Presolved: 394 rows, 363 columns, 1182 nonzeros Variable types: 0 continuous, 363 integer (363 binary) Root relaxation: objective 0.000000e+00, 191 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 0 163 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (645 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound 1.000000000000e+00, gap - optimal solution found: number of colors: 3