
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 04:37:46 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2059.42.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/grafo2059.42.lp
Reading time = 0.15 seconds
: 64863 rows, 1998 columns, 196065 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 64863 rows, 1998 columns and 196065 nonzeros
Model fingerprint: 0xbdc8869f
Variable types: 42 continuous, 1956 integer (1956 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 11333 rows and 33 columns
Presolve time: 0.60s
Presolved: 53530 rows, 1965 columns, 162418 nonzeros
Variable types: 0 continuous, 1965 integer (1923 binary)
Root relaxation presolved: 1965 rows, 55495 columns, 164383 nonzeros


Root relaxation: objective 3.700000e+01, 2581 iterations, 1.10 seconds (0.79 work units)
Total elapsed time = 10.03s (DegenMoves)

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

     0     0   37.00000    0  515          -   37.00000      -     -   12s
H    0     0                      10.0000000   37.00000   270%     -   14s
H    0     0                      11.0000000   37.00000   236%     -   14s
     0     0   37.00000    0  755   11.00000   37.00000   236%     -   26s
     0     0   37.00000    0  732   11.00000   37.00000   236%     -   31s
     0     0   37.00000    0  782   11.00000   37.00000   236%     -   50s

Cutting planes:
  Gomory: 2
  Lift-and-project: 3
  Cover: 10
  Clique: 5
  MIR: 90
  StrongCG: 1
  GUB cover: 1
  Zero half: 75
  RLT: 56
  BQP: 1

Explored 1 nodes (35156 simplex iterations) in 50.10 seconds (31.31 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 10 

Time limit reached
Best objective 1.100000000000e+01, best bound 3.700000000000e+01, gap 236.3636%

Wrote result file './lp_solutions/grafo2059.42.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 05:15:32 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2059.42.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/grafo2059.42.lp
Reading time = 0.10 seconds
: 64863 rows, 1998 columns, 196065 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 64863 rows, 1998 columns and 196065 nonzeros
Model fingerprint: 0xbdc8869f
Variable types: 42 continuous, 1956 integer (1956 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 11333 rows and 33 columns
Presolve time: 0.43s
Presolved: 53530 rows, 1965 columns, 162418 nonzeros
Variable types: 0 continuous, 1965 integer (1923 binary)
Root relaxation presolved: 1965 rows, 55495 columns, 164383 nonzeros


Root relaxation: objective 3.700000e+01, 2581 iterations, 0.70 seconds (0.79 work units)
Total elapsed time = 7.35s (DegenMoves)

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

     0     0   37.00000    0  515          -   37.00000      -     -    9s
H    0     0                      10.0000000   37.00000   270%     -   10s
H    0     0                      11.0000000   37.00000   236%     -   10s
     0     0   37.00000    0  755   11.00000   37.00000   236%     -   18s
     0     0   37.00000    0  732   11.00000   37.00000   236%     -   21s
H    0     0                      13.0000000   37.00000   185%     -   41s
     0     0   36.00000    0  558   13.00000   36.00000   177%     -   41s
     0     0   36.00000    0  627   13.00000   36.00000   177%     -   44s
     0     0   36.00000    0  689   13.00000   36.00000   177%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 22
  Clique: 7
  MIR: 128
  StrongCG: 2
  GUB cover: 2
  Zero half: 61
  RLT: 59

Explored 1 nodes (51698 simplex iterations) in 50.04 seconds (48.39 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 13 11 10 

Time limit reached
Best objective 1.300000000000e+01, best bound 3.600000000000e+01, gap 176.9231%

Wrote result file './lp_solutions/grafo2059.42.sol'

