current bounds on the number of colors: 0 -- 172 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:23:33 2012 Optimize a model with 13072 rows, 14942 columns and 53492 nonzeros Presolve removed 31 rows and 2666 columns Presolve time: 0.11s Presolved: 13041 rows, 12276 columns, 50826 nonzeros Variable types: 0 continuous, 12276 integer (12276 binary) Root relaxation: objective 0.000000e+00, 241 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 (241 simplex iterations) in 0.12 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 -- 86 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:23:33 2012 Optimize a model with 6622 rows, 7546 columns and 26746 nonzeros Presolve removed 31 rows and 1333 columns Presolve time: 0.06s Presolved: 6591 rows, 6213 columns, 25413 nonzeros Variable types: 0 continuous, 6213 integer (6213 binary) Root relaxation: objective 0.000000e+00, 241 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 (241 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 -- 43 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:23:33 2012 Optimize a model with 3322 rows, 3762 columns and 13062 nonzeros Presolve removed 31 rows and 651 columns Presolve time: 0.02s Presolved: 3291 rows, 3111 columns, 12411 nonzeros Variable types: 0 continuous, 3111 integer (3111 binary) Root relaxation: objective 0.000000e+00, 241 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 (241 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 -- 21 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:23:33 2012 Optimize a model with 1672 rows, 1870 columns and 6220 nonzeros Presolve removed 31 rows and 310 columns Presolve time: 0.01s Presolved: 1641 rows, 1560 columns, 5910 nonzeros Variable types: 0 continuous, 1560 integer (1560 binary) Root relaxation: objective 0.000000e+00, 247 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 (247 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 -- 10 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:23:33 2012 Optimize a model with 922 rows, 1010 columns and 3110 nonzeros Presolve removed 31 rows and 155 columns Presolve time: 0.00s Presolved: 891 rows, 855 columns, 2955 nonzeros Variable types: 0 continuous, 855 integer (855 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 (235 simplex iterations) in 0.00 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 -- 5 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:23:34 2012 Optimize a model with 472 rows, 494 columns and 1244 nonzeros Presolve removed 180 rows and 215 columns Presolve time: 0.00s Presolved: 292 rows, 279 columns, 876 nonzeros Variable types: 0 continuous, 279 integer (279 binary) Root relaxation: objective 0.000000e+00, 154 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 0 128 - 0.00000 - - 0s Explored 0 nodes (463 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 - current bounds on the number of colors: 2 -- 5 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:23:34 2012 Optimize a model with 622 rows, 666 columns and 1866 nonzeros Presolve removed 31 rows and 93 columns Presolve time: 0.00s Presolved: 591 rows, 573 columns, 1773 nonzeros Variable types: 0 continuous, 573 integer (573 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 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (215 simplex iterations) in 0.00 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: 3