current bounds on the number of colors: 0 -- 177 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:24:32 2012 Optimize a model with 13817 rows, 15731 columns and 56496 nonzeros Presolve removed 28 rows and 2464 columns Presolve time: 0.11s Presolved: 13789 rows, 13267 columns, 54032 nonzeros Variable types: 0 continuous, 13267 integer (13267 binary) Root relaxation: objective 0.000000e+00, 263 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 (263 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 -- 88 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:24:32 2012 Optimize a model with 6997 rows, 7943 columns and 28248 nonzeros Presolve removed 28 rows and 1232 columns Presolve time: 0.06s Presolved: 6969 rows, 6711 columns, 27016 nonzeros Variable types: 0 continuous, 6711 integer (6711 binary) Root relaxation: objective 0.000000e+00, 261 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 (261 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 -- 44 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:24:33 2012 Optimize a model with 3587 rows, 4049 columns and 14124 nonzeros Presolve removed 28 rows and 616 columns Presolve time: 0.02s Presolved: 3559 rows, 3433 columns, 13508 nonzeros Variable types: 0 continuous, 3433 integer (3433 binary) Root relaxation: objective 0.000000e+00, 261 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 (261 simplex iterations) in 0.03 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 -- 22 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:24:33 2012 Optimize a model with 1882 rows, 2102 columns and 7062 nonzeros Presolve removed 28 rows and 308 columns Presolve time: 0.01s Presolved: 1854 rows, 1794 columns, 6754 nonzeros Variable types: 0 continuous, 1794 integer (1794 binary) Root relaxation: objective 0.000000e+00, 253 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 (253 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 -- 11 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:24:33 2012 Optimize a model with 952 rows, 1040 columns and 3210 nonzeros Presolve removed 28 rows and 140 columns Presolve time: 0.00s Presolved: 924 rows, 900 columns, 3070 nonzeros Variable types: 0 continuous, 900 integer (900 binary) Root relaxation: objective 0.000000e+00, 246 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 (246 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 16:24:33 2012 Optimize a model with 487 rows, 509 columns and 1284 nonzeros Presolve removed 185 rows and 217 columns Presolve time: 0.00s Presolved: 302 rows, 292 columns, 906 nonzeros Variable types: 0 continuous, 292 integer (292 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 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (462 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 16:24:33 2012 Optimize a model with 642 rows, 686 columns and 1926 nonzeros Presolve removed 28 rows and 84 columns Presolve time: 0.00s Presolved: 614 rows, 602 columns, 1842 nonzeros Variable types: 0 continuous, 602 integer (602 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 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (238 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