current bounds on the number of colors: 0 -- 219 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:35:59 2012 Optimize a model with 25725 rows, 24105 columns and 100389 nonzeros Presolve removed 26 rows and 2834 columns Presolve time: 0.14s Presolved: 25699 rows, 21271 columns, 97555 nonzeros Variable types: 0 continuous, 21271 integer (21271 binary) Root relaxation: objective 0.000000e+00, 372 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 (372 simplex iterations) in 0.16 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 -- 109 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:35:59 2012 Optimize a model with 12855 rows, 12060 columns and 49734 nonzeros Presolve removed 26 rows and 1404 columns Presolve time: 0.12s Presolved: 12829 rows, 10656 columns, 48330 nonzeros Variable types: 0 continuous, 10656 integer (10656 binary) Root relaxation: objective 0.000000e+00, 371 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 (371 simplex iterations) in 0.14 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 -- 54 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:36:00 2012 Optimize a model with 6537 rows, 6147 columns and 24867 nonzeros Presolve removed 26 rows and 702 columns Presolve time: 0.04s Presolved: 6511 rows, 5445 columns, 24165 nonzeros Variable types: 0 continuous, 5445 integer (5445 binary) Root relaxation: objective 0.000000e+00, 368 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 (368 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 -- 27 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:36:00 2012 Optimize a model with 3261 rows, 3081 columns and 11973 nonzeros Presolve removed 26 rows and 338 columns Presolve time: 0.01s Presolved: 3235 rows, 2743 columns, 11635 nonzeros Variable types: 0 continuous, 2743 integer (2743 binary) Root relaxation: objective 0.000000e+00, 357 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 (357 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 -- 13 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:36:00 2012 Optimize a model with 1623 rows, 1548 columns and 5526 nonzeros Presolve removed 26 rows and 156 columns Presolve time: 0.01s Presolved: 1597 rows, 1392 columns, 5370 nonzeros Variable types: 0 continuous, 1392 integer (1392 binary) Root relaxation: objective 0.000000e+00, 356 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 (515 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 16:36:00 2012 Optimize a model with 921 rows, 891 columns and 2763 nonzeros Presolve removed 26 rows and 78 columns Presolve time: 0.00s Presolved: 895 rows, 813 columns, 2685 nonzeros Variable types: 0 continuous, 813 integer (813 binary) Root relaxation: objective 0.000000e+00, 365 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 (531 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 16:36:00 2012 Optimize a model with 453 rows, 453 columns and 921 nonzeros Presolve removed 453 rows and 453 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 16:36:00 2012 Optimize a model with 687 rows, 672 columns and 1842 nonzeros Presolve removed 227 rows and 257 columns Presolve time: 0.00s Presolved: 460 rows, 415 columns, 1380 nonzeros Variable types: 0 continuous, 415 integer (415 binary) Root relaxation: objective 0.000000e+00, 206 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 0 175 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (662 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