current bounds on the number of colors: 0 -- 172 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:23:34 2012 Optimize a model with 11954 rows, 14929 columns and 50138 nonzeros Presolve removed 35 rows and 3010 columns Presolve time: 0.12s Presolved: 11919 rows, 11919 columns, 47128 nonzeros Variable types: 0 continuous, 11919 integer (11919 binary) Root relaxation: objective 0.000000e+00, 236 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 (236 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 -- 86 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:23:34 2012 Optimize a model with 6063 rows, 7533 columns and 25069 nonzeros Presolve removed 35 rows and 1505 columns Presolve time: 0.05s Presolved: 6028 rows, 6028 columns, 23564 nonzeros Variable types: 0 continuous, 6028 integer (6028 binary) Root relaxation: objective 0.000000e+00, 237 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 (237 simplex iterations) in 0.06 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 16:23:34 2012 Optimize a model with 3049 rows, 3749 columns and 12243 nonzeros Presolve removed 35 rows and 735 columns Presolve time: 0.02s Presolved: 3014 rows, 3014 columns, 11508 nonzeros Variable types: 0 continuous, 3014 integer (3014 binary) Root relaxation: objective 0.000000e+00, 236 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 (236 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 16:23:35 2012 Optimize a model with 1542 rows, 1857 columns and 5830 nonzeros Presolve removed 35 rows and 350 columns Presolve time: 0.01s Presolved: 1507 rows, 1507 columns, 5480 nonzeros Variable types: 0 continuous, 1507 integer (1507 binary) Root relaxation: objective 0.000000e+00, 234 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 (234 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 16:23:35 2012 Optimize a model with 857 rows, 997 columns and 2915 nonzeros Presolve removed 35 rows and 175 columns Presolve time: 0.00s Presolved: 822 rows, 822 columns, 2740 nonzeros Variable types: 0 continuous, 822 integer (822 binary) Root relaxation: objective 0.000000e+00, 212 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 (212 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 16:23:35 2012 Optimize a model with 446 rows, 481 columns and 1166 nonzeros Presolve removed 186 rows and 228 columns Presolve time: 0.00s Presolved: 260 rows, 253 columns, 780 nonzeros Variable types: 0 continuous, 253 integer (253 binary) Root relaxation: objective 0.000000e+00, 133 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 94 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (381 simplex iterations) in 0.00 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 16:23:35 2012 Optimize a model with 583 rows, 653 columns and 1749 nonzeros Presolve removed 35 rows and 105 columns Presolve time: 0.00s Presolved: 548 rows, 548 columns, 1644 nonzeros Variable types: 0 continuous, 548 integer (548 binary) Root relaxation: objective 0.000000e+00, 217 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 (217 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