
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:32:24 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7673.46.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/grafo7673.46.lp
Reading time = 0.19 seconds
: 113029 rows, 2598 columns, 341207 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 113029 rows, 2598 columns and 341207 nonzeros
Model fingerprint: 0x76ca738c
Variable types: 49 continuous, 2549 integer (2549 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 25452 rows and 29 columns
Presolve time: 0.90s
Presolved: 87577 rows, 2569 columns, 265375 nonzeros
Variable types: 0 continuous, 2569 integer (2520 binary)
Found heuristic solution: objective 12.0000000
Root relaxation presolved: 2560 rows, 90137 columns, 267944 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20050    4.0932962e+01   0.000000e+00   1.667863e+04      5s
   40487    4.0919668e+01   0.000000e+00   1.897184e+02     10s
   44622    4.1000000e+01   0.000000e+00   0.000000e+00     11s
   44622    4.1000000e+01   0.000000e+00   0.000000e+00     11s
   44622    4.1000000e+01   0.000000e+00   0.000000e+00     11s

Root relaxation: objective 4.100000e+01, 44622 iterations, 10.13 seconds (9.10 work units)
Total elapsed time = 21.57s (DegenMoves)

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

     0     0   41.00000    0  363   12.00000   41.00000   242%     -   22s
H    0     0                      13.0000000   41.00000   215%     -   22s
     0     0   41.00000    0  663   13.00000   41.00000   215%     -   29s
     0     0   41.00000    0  657   13.00000   41.00000   215%     -   30s
     0     0   41.00000    0  456   13.00000   41.00000   215%     -   49s

Cutting planes:
  Clique: 3
  MIR: 11
  Zero half: 2
  RLT: 15
  BQP: 1

Explored 1 nodes (75639 simplex iterations) in 50.04 seconds (47.22 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 13 12 

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

Wrote result file './lp_solutions/grafo7673.46.sol'

