
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov  1 21:42:23 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10140.40.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/grafo10140.40.lp
Reading time = 0.43 seconds
: 57765 rows, 1908 columns, 174755 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 57765 rows, 1908 columns and 174755 nonzeros
Model fingerprint: 0x9db8e668
Variable types: 40 continuous, 1868 integer (1868 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 11571 rows and 18 columns
Presolve time: 0.96s
Presolved: 46194 rows, 1890 columns, 140546 nonzeros
Variable types: 0 continuous, 1890 integer (1850 binary)
Root relaxation presolved: 26434 rows, 21650 columns, 101026 nonzeros


Root relaxation: objective 3.700000e+01, 1894 iterations, 1.44 seconds (0.47 work units)
Total elapsed time = 5.38s (DegenMoves)

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

     0     0   37.00000    0  296          -   37.00000      -     -    6s
H    0     0                       8.0000000   37.00000   362%     -    7s
     0     0   37.00000    0  566    8.00000   37.00000   362%     -   19s
     0     0   37.00000    0  540    8.00000   37.00000   362%     -   20s
     0     0   37.00000    0  498    8.00000   37.00000   362%     -   50s

Cutting planes:
  Gomory: 5
  Lift-and-project: 40
  Cover: 26
  Clique: 4
  MIR: 102
  StrongCG: 1
  GUB cover: 2
  Zero half: 33
  RLT: 51

Explored 1 nodes (19530 simplex iterations) in 50.12 seconds (12.34 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 8 

Time limit reached
Best objective 8.000000000000e+00, best bound 3.700000000000e+01, gap 362.5000%

Wrote result file './lp_solutions/grafo10140.40.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 04:49:00 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10140.40.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/grafo10140.40.lp
Reading time = 0.10 seconds
: 57765 rows, 1908 columns, 174755 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 57765 rows, 1908 columns and 174755 nonzeros
Model fingerprint: 0x9db8e668
Variable types: 40 continuous, 1868 integer (1868 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 11571 rows and 18 columns
Presolve time: 0.36s
Presolved: 46194 rows, 1890 columns, 140546 nonzeros
Variable types: 0 continuous, 1890 integer (1850 binary)
Root relaxation presolved: 26434 rows, 21650 columns, 101026 nonzeros


Root relaxation: objective 3.700000e+01, 1894 iterations, 0.50 seconds (0.47 work units)

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

     0     0   37.00000    0  296          -   37.00000      -     -    2s
H    0     0                       8.0000000   37.00000   362%     -    2s
     0     0   37.00000    0  566    8.00000   37.00000   362%     -    6s
     0     0   37.00000    0  540    8.00000   37.00000   362%     -    6s
     0     0   37.00000    0  333    8.00000   37.00000   362%     -   15s
H    0     0                       9.0000000   37.00000   311%     -   15s
     0     0   37.00000    0  324    9.00000   37.00000   311%     -   15s
     0     0   37.00000    0  406    9.00000   37.00000   311%     -   21s
     0     0   37.00000    0  404    9.00000   37.00000   311%     -   21s
H    0     0                      10.0000000   37.00000   270%     -   30s
H    0     0                      11.0000000   37.00000   236%     -   30s
     0     0   37.00000    0  369   11.00000   37.00000   236%     -   30s
     0     0   37.00000    0  402   11.00000   37.00000   236%     -   30s
H    0     0                      12.0000000   37.00000   208%     -   37s
H    0     0                      13.0000000   37.00000   185%     -   37s
H    0     0                      14.0000000   37.00000   164%     -   37s
     0     0   37.00000    0  506   14.00000   37.00000   164%     -   37s
     0     0   37.00000    0  493   14.00000   37.00000   164%     -   37s
H    0     0                      15.0000000   37.00000   147%     -   41s
H    0     0                      16.0000000   37.00000   131%     -   41s
     0     0   37.00000    0  435   16.00000   37.00000   131%     -   41s
     0     0   37.00000    0  434   16.00000   37.00000   131%     -   43s
H    0     0                      18.0000000   37.00000   106%     -   50s

Cutting planes:
  Gomory: 1
  MIR: 18
  Inf proof: 1
  Zero half: 3
  RLT: 22

Explored 1 nodes (62639 simplex iterations) in 50.02 seconds (46.95 work units)
Thread count was 8 (of 8 available processors)

Solution count 10: 18 16 15 ... 8

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

Wrote result file './lp_solutions/grafo10140.40.sol'

