current bounds on the number of colors: 0 -- 227 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:38:55 2012 Optimize a model with 29720 rows, 25912 columns and 114130 nonzeros Presolve removed 17 rows and 1921 columns Presolve time: 0.15s Presolved: 29703 rows, 23991 columns, 112209 nonzeros Variable types: 0 continuous, 23991 integer (23991 binary) Root relaxation: objective 0.000000e+00, 398 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 (398 simplex iterations) in 0.18 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 -- 113 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:38:56 2012 Optimize a model with 14843 rows, 12973 columns and 56560 nonzeros Presolve removed 17 rows and 952 columns Presolve time: 0.12s Presolved: 14826 rows, 12021 columns, 55608 nonzeros Variable types: 0 continuous, 12021 integer (12021 binary) Root relaxation: objective 0.000000e+00, 384 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 (384 simplex iterations) in 0.13 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% current bounds on the number of colors: 0 -- 56 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:38:56 2012 Optimize a model with 7535 rows, 6617 columns and 28280 nonzeros Presolve removed 17 rows and 476 columns Presolve time: 0.05s Presolved: 7518 rows, 6141 columns, 27804 nonzeros Variable types: 0 continuous, 6141 integer (6141 binary) Root relaxation: objective 0.000000e+00, 383 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 (383 simplex iterations) in 0.05 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 -- 28 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:38:56 2012 Optimize a model with 3881 rows, 3439 columns and 14140 nonzeros Presolve removed 17 rows and 238 columns Presolve time: 0.02s Presolved: 3864 rows, 3201 columns, 13902 nonzeros Variable types: 0 continuous, 3201 integer (3201 binary) Root relaxation: objective 0.000000e+00, 390 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 (390 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 -- 14 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:38:56 2012 Optimize a model with 2054 rows, 1850 columns and 7070 nonzeros Presolve removed 17 rows and 119 columns Presolve time: 0.01s Presolved: 2037 rows, 1731 columns, 6951 nonzeros Variable types: 0 continuous, 1731 integer (1731 binary) Root relaxation: objective 0.000000e+00, 363 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 (363 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 -- 7 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:38:56 2012 Optimize a model with 1010 rows, 942 columns and 3030 nonzeros Presolve removed 17 rows and 51 columns Presolve time: 0.00s Presolved: 993 rows, 891 columns, 2979 nonzeros Variable types: 0 continuous, 891 integer (891 binary) Root relaxation: objective 0.000000e+00, 393 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 (393 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 16:38:57 2012 Optimize a model with 488 rows, 488 columns and 1010 nonzeros Presolve removed 488 rows and 488 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 16:38:57 2012 Optimize a model with 749 rows, 715 columns and 2020 nonzeros Presolve removed 233 rows and 253 columns Presolve time: 0.00s Presolved: 516 rows, 462 columns, 1548 nonzeros Variable types: 0 continuous, 462 integer (462 binary) Root relaxation: objective 0.000000e+00, 238 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 0 204 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (751 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