
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 06:41:04 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3868.45.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/grafo3868.45.lp
Reading time = 0.11 seconds
: 54902 rows, 1856 columns, 165736 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 54902 rows, 1856 columns and 165736 nonzeros
Model fingerprint: 0xdb0d234d
Variable types: 36 continuous, 1820 integer (1820 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 7347 rows and 26 columns
Presolve time: 0.65s
Presolved: 47555 rows, 1830 columns, 144021 nonzeros
Variable types: 0 continuous, 1830 integer (1794 binary)
Root relaxation presolved: 26225 rows, 23160 columns, 101361 nonzeros


Root relaxation: objective 3.400000e+01, 4551 iterations, 3.43 seconds (2.22 work units)
Total elapsed time = 7.32s (DegenMoves)
Total elapsed time = 15.30s (DegenMoves)

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

     0     0   34.00000    0  463          -   34.00000      -     -   19s
H    0     0                       7.0000000   34.00000   386%     -   19s
     0     0   34.00000    0  613    7.00000   34.00000   386%     -   27s
H    0     0                       8.0000000   34.00000   325%     -   27s
     0     0   34.00000    0  603    8.00000   34.00000   325%     -   27s
     0     0   34.00000    0  304    8.00000   34.00000   325%     -   38s
H    0     0                       9.0000000   34.00000   278%     -   39s
     0     0   34.00000    0  330    9.00000   34.00000   278%     -   39s
H    0     0                      11.0000000   34.00000   209%     -   46s
H    0     0                      12.0000000   34.00000   183%     -   46s
     0     0   34.00000    0  323   12.00000   34.00000   183%     -   46s
     0     0   34.00000    0  283   12.00000   34.00000   183%     -   46s
     0     0   34.00000    0  486   12.00000   34.00000   183%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 40
  Clique: 1
  MIR: 155
  GUB cover: 3
  Zero half: 31
  RLT: 52

Explored 1 nodes (50648 simplex iterations) in 50.10 seconds (34.18 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 12 11 9 ... 7

Time limit reached
Best objective 1.200000000000e+01, best bound 3.400000000000e+01, gap 183.3333%

Wrote result file './lp_solutions/grafo3868.45.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 06:32:38 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3868.45.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/grafo3868.45.lp
Reading time = 0.09 seconds
: 54902 rows, 1856 columns, 165736 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 54902 rows, 1856 columns and 165736 nonzeros
Model fingerprint: 0xdb0d234d
Variable types: 36 continuous, 1820 integer (1820 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 7347 rows and 26 columns
Presolve time: 0.36s
Presolved: 47555 rows, 1830 columns, 144021 nonzeros
Variable types: 0 continuous, 1830 integer (1794 binary)
Root relaxation presolved: 26225 rows, 23160 columns, 101361 nonzeros


Root relaxation: objective 3.400000e+01, 4551 iterations, 2.29 seconds (2.22 work units)
Total elapsed time = 11.14s (DegenMoves)

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

     0     0   34.00000    0  463          -   34.00000      -     -   14s
H    0     0                       7.0000000   34.00000   386%     -   14s
     0     0   34.00000    0  613    7.00000   34.00000   386%     -   19s
H    0     0                       8.0000000   34.00000   325%     -   19s
     0     0   34.00000    0  603    8.00000   34.00000   325%     -   19s
     0     0   34.00000    0  304    8.00000   34.00000   325%     -   27s
H    0     0                       9.0000000   34.00000   278%     -   27s
     0     0   34.00000    0  330    9.00000   34.00000   278%     -   27s
H    0     0                      11.0000000   34.00000   209%     -   31s
H    0     0                      12.0000000   34.00000   183%     -   31s
     0     0   34.00000    0  323   12.00000   34.00000   183%     -   31s
     0     0   34.00000    0  283   12.00000   34.00000   183%     -   32s
H    0     0                      13.0000000   34.00000   162%     -   35s
     0     0   34.00000    0  286   13.00000   34.00000   162%     -   35s
     0     0   34.00000    0  298   13.00000   34.00000   162%     -   36s
     0     0   34.00000    0  366   13.00000   34.00000   162%     -   39s
     0     0   33.75000    0  297   13.00000   33.75000   160%     -   40s
H    0     0                      14.0000000   33.75000   141%     -   42s
     0     0   33.66667    0  399   14.00000   33.66667   140%     -   42s
     0     0   33.66667    0  360   14.00000   33.66667   140%     -   43s
     0     0   33.66667    0  367   14.00000   33.66667   140%     -   46s
     0     0   33.66667    0  367   14.00000   33.66667   140%     -   47s

Cutting planes:
  Cover: 3
  Clique: 2
  MIR: 29
  Zero half: 12
  RLT: 40

Explored 1 nodes (76582 simplex iterations) in 50.03 seconds (50.13 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 14 13 12 ... 7

Time limit reached
Best objective 1.400000000000e+01, best bound 3.300000000000e+01, gap 135.7143%

Wrote result file './lp_solutions/grafo3868.45.sol'

