
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 06:54:30 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo4021.40.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/grafo4021.40.lp
Reading time = 0.14 seconds
: 69752 rows, 2006 columns, 210845 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 69752 rows, 2006 columns and 210845 nonzeros
Model fingerprint: 0xae1368d9
Variable types: 44 continuous, 1962 integer (1962 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 13696 rows and 33 columns
Presolve time: 0.68s
Presolved: 56056 rows, 1973 columns, 170101 nonzeros
Variable types: 0 continuous, 1973 integer (1929 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 1973 rows, 58029 columns, 172074 nonzeros


Root relaxation: objective 4.100000e+01, 3389 iterations, 1.87 seconds (1.62 work units)
Total elapsed time = 11.64s (DegenMoves)
Total elapsed time = 16.25s (DegenMoves)

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

     0     0   41.00000    0  520    4.00000   41.00000   925%     -   19s
H    0     0                       7.0000000   41.00000   486%     -   19s
H    0     0                       8.0000000   41.00000   412%     -   19s
H    0     0                       9.0000000   41.00000   356%     -   19s
H    0     0                      10.0000000   41.00000   310%     -   22s
H    0     0                      11.0000000   41.00000   273%     -   37s
     0     0   41.00000    0  840   11.00000   41.00000   273%     -   37s
     0     0   41.00000    0  794   11.00000   41.00000   273%     -   39s
     0     0          -    0        11.00000   41.00000   273%     -   50s

Cutting planes:
  Gomory: 3
  Cover: 9
  Clique: 6
  MIR: 115
  Zero half: 80
  RLT: 63

Explored 1 nodes (31794 simplex iterations) in 50.08 seconds (33.68 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 11 10 9 ... 4

Time limit reached
Best objective 1.100000000000e+01, best bound 4.100000000000e+01, gap 272.7273%

Wrote result file './lp_solutions/grafo4021.40.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 04:11:50 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo4021.40.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/grafo4021.40.lp
Reading time = 0.11 seconds
: 69752 rows, 2006 columns, 210845 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 69752 rows, 2006 columns and 210845 nonzeros
Model fingerprint: 0xae1368d9
Variable types: 44 continuous, 1962 integer (1962 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 13696 rows and 33 columns
Presolve time: 0.47s
Presolved: 56056 rows, 1973 columns, 170101 nonzeros
Variable types: 0 continuous, 1973 integer (1929 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 1973 rows, 58029 columns, 172074 nonzeros


Root relaxation: objective 4.100000e+01, 3389 iterations, 1.29 seconds (1.62 work units)
Total elapsed time = 8.83s (DegenMoves)
Total elapsed time = 10.54s (DegenMoves)

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

     0     0   41.00000    0  520    4.00000   41.00000   925%     -   14s
H    0     0                       7.0000000   41.00000   486%     -   14s
H    0     0                       8.0000000   41.00000   412%     -   14s
H    0     0                       9.0000000   41.00000   356%     -   14s
H    0     0                      10.0000000   41.00000   310%     -   16s
H    0     0                      11.0000000   41.00000   273%     -   26s
     0     0   41.00000    0  840   11.00000   41.00000   273%     -   26s
     0     0   41.00000    0  794   11.00000   41.00000   273%     -   28s
     0     0   41.00000    0  528   11.00000   41.00000   273%     -   50s

Cutting planes:
  Gomory: 3
  Cover: 9
  Clique: 6
  MIR: 115
  Zero half: 80
  RLT: 63

Explored 1 nodes (46658 simplex iterations) in 50.07 seconds (48.76 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 11 10 9 ... 4

Time limit reached
Best objective 1.100000000000e+01, best bound 4.100000000000e+01, gap 272.7273%

Wrote result file './lp_solutions/grafo4021.40.sol'

