
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 03:28:11 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11587.37.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/grafo11587.37.lp
Reading time = 0.12 seconds
: 59611 rows, 1874 columns, 180437 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 59611 rows, 1874 columns and 180437 nonzeros
Model fingerprint: 0x0a6b9432
Variable types: 44 continuous, 1830 integer (1830 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 10096 rows and 35 columns
Presolve time: 0.65s
Presolved: 49515 rows, 1839 columns, 150490 nonzeros
Variable types: 0 continuous, 1839 integer (1795 binary)
Root relaxation presolved: 28501 rows, 22853 columns, 108462 nonzeros


Root relaxation: objective 3.700000e+01, 2273 iterations, 1.23 seconds (0.75 work units)

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

     0     0   37.00000    0  333          -   37.00000      -     -    4s
H    0     0                      11.0000000   37.00000   236%     -    4s
H    0     0                      13.0000000   37.00000   185%     -    6s
H    0     0                      15.0000000   37.00000   147%     -    6s
     0     0   37.00000    0  483   15.00000   37.00000   147%     -    8s
H    0     0                      16.0000000   37.00000   131%     -    8s
     0     0   37.00000    0  484   16.00000   37.00000   131%     -    8s
     0     0   37.00000    0  401   16.00000   37.00000   131%     -   23s
     0     0   37.00000    0  359   16.00000   37.00000   131%     -   24s
H    0     0                      17.0000000   37.00000   118%     -   32s
H    0     0                      18.0000000   37.00000   106%     -   32s
     0     0   37.00000    0  381   18.00000   37.00000   106%     -   32s
     0     0   37.00000    0  424   18.00000   37.00000   106%     -   34s
     0     0   37.00000    0  393   18.00000   37.00000   106%     -   43s
     0     0   37.00000    0  405   18.00000   37.00000   106%     -   45s
     0     0   37.00000    0  472   18.00000   37.00000   106%     -   50s

Cutting planes:
  Cover: 24
  Clique: 5
  MIR: 121
  GUB cover: 6
  Zero half: 144
  RLT: 49

Explored 1 nodes (43361 simplex iterations) in 50.10 seconds (28.28 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 18 17 16 ... 11

Time limit reached
Best objective 1.800000000000e+01, best bound 3.700000000000e+01, gap 105.5556%

Wrote result file './lp_solutions/grafo11587.37.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 08:15:09 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11587.37.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/grafo11587.37.lp
Reading time = 0.11 seconds
: 59611 rows, 1874 columns, 180437 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 59611 rows, 1874 columns and 180437 nonzeros
Model fingerprint: 0x0a6b9432
Variable types: 44 continuous, 1830 integer (1830 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 10096 rows and 35 columns
Presolve time: 0.43s
Presolved: 49515 rows, 1839 columns, 150490 nonzeros
Variable types: 0 continuous, 1839 integer (1795 binary)
Root relaxation presolved: 28501 rows, 22853 columns, 108462 nonzeros


Root relaxation: objective 3.700000e+01, 2273 iterations, 0.81 seconds (0.75 work units)

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

     0     0   37.00000    0  333          -   37.00000      -     -    2s
H    0     0                      11.0000000   37.00000   236%     -    2s
H    0     0                      13.0000000   37.00000   185%     -    3s
H    0     0                      15.0000000   37.00000   147%     -    3s
     0     0   37.00000    0  483   15.00000   37.00000   147%     -    5s
H    0     0                      16.0000000   37.00000   131%     -    5s
     0     0   37.00000    0  484   16.00000   37.00000   131%     -    5s
     0     0   37.00000    0  401   16.00000   37.00000   131%     -   15s
     0     0   37.00000    0  359   16.00000   37.00000   131%     -   15s
H    0     0                      17.0000000   37.00000   118%     -   21s
H    0     0                      18.0000000   37.00000   106%     -   21s
     0     0   37.00000    0  381   18.00000   37.00000   106%     -   21s
     0     0   37.00000    0  424   18.00000   37.00000   106%     -   21s
     0     0   37.00000    0  393   18.00000   37.00000   106%     -   28s
     0     0   37.00000    0  405   18.00000   37.00000   106%     -   29s
H    0     0                      19.0000000   37.00000  94.7%     -   34s
     0     0   37.00000    0  279   19.00000   37.00000  94.7%     -   34s
     0     0   37.00000    0  350   19.00000   37.00000  94.7%     -   34s
     0     0   37.00000    0  258   19.00000   37.00000  94.7%     -   40s
     0     0   37.00000    0  296   19.00000   37.00000  94.7%     -   40s
H    0     0                      20.0000000   37.00000  85.0%     -   45s
     0     0   37.00000    0  282   20.00000   37.00000  85.0%     -   45s
     0     0   37.00000    0  282   20.00000   37.00000  85.0%     -   46s

Cutting planes:
  Gomory: 1
  Clique: 2
  MIR: 7
  Inf proof: 1
  RLT: 15

Explored 1 nodes (64245 simplex iterations) in 50.07 seconds (44.45 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 20 19 18 ... 11

Time limit reached
Best objective 2.000000000000e+01, best bound 3.700000000000e+01, gap 85.0000%

Wrote result file './lp_solutions/grafo11587.37.sol'

