
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 09:09:15 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7063.44.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/grafo7063.44.lp
Reading time = 0.14 seconds
: 88082 rows, 2201 columns, 265890 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 88082 rows, 2201 columns and 265890 nonzeros
Model fingerprint: 0xad917787
Variable types: 44 continuous, 2157 integer (2157 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]
Found heuristic solution: objective 4.0000000
Presolve removed 19839 rows and 24 columns
Presolve time: 0.58s
Presolved: 68243 rows, 2177 columns, 206701 nonzeros
Variable types: 0 continuous, 2177 integer (2133 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 2177 rows, 70420 columns, 208878 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   28457    4.0828084e+01   0.000000e+00   7.146698e+02      5s
   30362    4.1000000e+01   0.000000e+00   0.000000e+00      5s
   30362    4.1000000e+01   0.000000e+00   0.000000e+00      5s

Root relaxation: objective 4.100000e+01, 30362 iterations, 4.70 seconds (4.08 work units)
Total elapsed time = 12.03s (DegenMoves)

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

     0     0   41.00000    0  433   11.00000   41.00000   273%     -   13s
H    0     0                      12.0000000   41.00000   242%     -   13s
     0     0   41.00000    0  669   12.00000   41.00000   242%     -   20s
     0     0   41.00000    0  596   12.00000   41.00000   242%     -   21s
     0     0   41.00000    0  475   12.00000   41.00000   242%     -   43s
H    0     0                      13.0000000   41.00000   215%     -   44s
     0     0   41.00000    0  473   13.00000   41.00000   215%     -   45s
     0     0   41.00000    0  586   13.00000   41.00000   215%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 1
  Cover: 12
  Clique: 15
  MIR: 131
  StrongCG: 1
  GUB cover: 2
  Zero half: 78
  RLT: 63

Explored 1 nodes (68936 simplex iterations) in 50.07 seconds (48.83 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 13 12 11 4 

Time limit reached
Best objective 1.300000000000e+01, best bound 4.100000000000e+01, gap 215.3846%

Wrote result file './lp_solutions/grafo7063.44.sol'

