
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 06:23:27 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3679.39.log"
Using license file /Users/sara/gurobi.lic
Academic license - for non-commercial use only - expires 2025-05-12

Gurobi Optimizer version 11.0.1 build v11.0.1rc0 (mac64[x86] - Darwin 21.6.0 21G651)
Copyright (c) 2024, Gurobi Optimization, LLC

Read LP format model from file ./lp_problems/grafo3679.39.lp
Reading time = 0.11 seconds
: 56653 rows, 1559 columns, 170951 nonzeros

CPU model: Intel(R) Core(TM) i5-1038NG7 CPU @ 2.00GHz
Thread count: 4 physical cores, 8 logical processors, using up to 8 threads

Optimize a model with 56653 rows, 1559 columns and 170951 nonzeros
Model fingerprint: 0x287cc685
Variable types: 35 continuous, 1524 integer (1524 binary)
Coefficient statistics:
  Matrix range     [5e-01, 5e+01]
  Objective range  [1e+00, 1e+00]
  Bounds range     [1e+00, 1e+00]
  RHS range        [1e+00, 5e+01]
Presolve removed 14380 rows and 19 columns
Presolve time: 0.53s
Presolved: 42273 rows, 1540 columns, 128014 nonzeros
Variable types: 0 continuous, 1540 integer (1505 binary)
Root relaxation presolved: 26589 rows, 17224 columns, 96646 nonzeros


Root relaxation: objective 3.200000e+01, 2901 iterations, 2.09 seconds (1.35 work units)
Total elapsed time = 5.32s (DegenMoves)
Total elapsed time = 10.06s (DegenMoves)

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0   32.00000    0  271          -   32.00000      -     -   10s
H    0     0                       5.0000000   32.00000   540%     -   10s
H    0     0                       8.0000000   32.00000   300%     -   10s
H    0     0                      10.0000000   32.00000   220%     -   10s
     0     0   32.00000    0  407   10.00000   32.00000   220%     -   16s
     0     0   32.00000    0  371   10.00000   32.00000   220%     -   16s
     0     0   31.82353    0  311   10.00000   31.82353   218%     -   23s
     0     0   31.77778    0  320   10.00000   31.77778   218%     -   24s
H    0     0                      11.0000000   31.75000   189%     -   32s
H    0     0                      12.0000000   31.75000   165%     -   32s
     0     0   31.66667    0  279   12.00000   31.66667   164%     -   32s
     0     0   31.66667    0  244   12.00000   31.66667   164%     -   33s
H    0     0                      14.0000000   31.66667   126%     -   42s
H    0     0                      15.0000000   31.66667   111%     -   42s
H    0     0                      17.0000000   31.50000  85.3%     -   42s
     0     0   31.50000    0  352   17.00000   31.50000  85.3%     -   42s
     0     0   31.50000    0  333   17.00000   31.50000  85.3%     -   43s
     0     0   31.50000    0  310   17.00000   31.50000  85.3%     -   50s

Cutting planes:
  Cover: 21
  Clique: 22
  MIR: 106
  StrongCG: 1
  GUB cover: 1
  Zero half: 22
  RLT: 44
  BQP: 1

Explored 1 nodes (48681 simplex iterations) in 50.09 seconds (34.33 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 17 15 14 ... 5

Time limit reached
Best objective 1.700000000000e+01, best bound 3.100000000000e+01, gap 82.3529%

Wrote result file './lp_solutions/grafo3679.39.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 03:13:40 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3679.39.log"
Using license file /Users/sara/gurobi.lic
Academic license - for non-commercial use only - expires 2025-05-12

Gurobi Optimizer version 11.0.1 build v11.0.1rc0 (mac64[x86] - Darwin 21.6.0 21G651)
Copyright (c) 2024, Gurobi Optimization, LLC

Read LP format model from file ./lp_problems/grafo3679.39.lp
Reading time = 0.09 seconds
: 56653 rows, 1559 columns, 170951 nonzeros

CPU model: Intel(R) Core(TM) i5-1038NG7 CPU @ 2.00GHz
Thread count: 4 physical cores, 8 logical processors, using up to 8 threads

Optimize a model with 56653 rows, 1559 columns and 170951 nonzeros
Model fingerprint: 0x287cc685
Variable types: 35 continuous, 1524 integer (1524 binary)
Coefficient statistics:
  Matrix range     [5e-01, 5e+01]
  Objective range  [1e+00, 1e+00]
  Bounds range     [1e+00, 1e+00]
  RHS range        [1e+00, 5e+01]
Presolve removed 14380 rows and 19 columns
Presolve time: 0.39s
Presolved: 42273 rows, 1540 columns, 128014 nonzeros
Variable types: 0 continuous, 1540 integer (1505 binary)
Root relaxation presolved: 26589 rows, 17224 columns, 96646 nonzeros


Root relaxation: objective 3.200000e+01, 2901 iterations, 1.33 seconds (1.35 work units)
Total elapsed time = 6.97s (DegenMoves)

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0   32.00000    0  271          -   32.00000      -     -    7s
H    0     0                       5.0000000   32.00000   540%     -    7s
H    0     0                       8.0000000   32.00000   300%     -    7s
H    0     0                      10.0000000   32.00000   220%     -    7s
     0     0   32.00000    0  407   10.00000   32.00000   220%     -   11s
     0     0   32.00000    0  371   10.00000   32.00000   220%     -   11s
     0     0   31.82353    0  311   10.00000   31.82353   218%     -   16s
     0     0   31.77778    0  320   10.00000   31.77778   218%     -   16s
H    0     0                      11.0000000   31.75000   189%     -   22s
H    0     0                      12.0000000   31.75000   165%     -   22s
     0     0   31.66667    0  279   12.00000   31.66667   164%     -   22s
     0     0   31.66667    0  244   12.00000   31.66667   164%     -   22s
H    0     0                      14.0000000   31.66667   126%     -   28s
H    0     0                      15.0000000   31.66667   111%     -   28s
H    0     0                      17.0000000   31.50000  85.3%     -   28s
     0     0   31.50000    0  352   17.00000   31.50000  85.3%     -   28s
     0     0   31.50000    0  333   17.00000   31.50000  85.3%     -   29s
     0     0   31.50000    0  178   17.00000   31.50000  85.3%     -   37s
     0     0   31.50000    0  237   17.00000   31.50000  85.3%     -   38s
     0     0   31.49510    0  209   17.00000   31.49510  85.3%     -   41s
     0     0   31.49020    0  206   17.00000   31.49020  85.2%     -   41s
     0     0   31.44444    0  226   17.00000   31.44444  85.0%     -   44s
     0     0   31.44444    0  226   17.00000   31.44444  85.0%     -   45s
     0     2   31.44444    0  223   17.00000   31.44444  85.0%     -   50s

Cutting planes:
  Cover: 2
  Clique: 7
  MIR: 23
  RLT: 20

Explored 1 nodes (63805 simplex iterations) in 50.02 seconds (48.10 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 17 15 14 ... 5

Time limit reached
Best objective 1.700000000000e+01, best bound 3.100000000000e+01, gap 82.3529%

Wrote result file './lp_solutions/grafo3679.39.sol'

