
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 05:07:28 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3804.40.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/grafo3804.40.lp
Reading time = 0.11 seconds
: 67064 rows, 1942 columns, 202682 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 67064 rows, 1942 columns and 202682 nonzeros
Model fingerprint: 0x18dcda89
Variable types: 42 continuous, 1900 integer (1900 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 15314 rows and 25 columns
Presolve time: 0.45s
Presolved: 51750 rows, 1917 columns, 157149 nonzeros
Variable types: 0 continuous, 1917 integer (1875 binary)
Root relaxation presolved: 1914 rows, 53664 columns, 159066 nonzeros


Root relaxation: objective 4.000000e+01, 2473 iterations, 0.73 seconds (0.81 work units)
Total elapsed time = 7.17s (DegenMoves)

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

     0     0   40.00000    0  554          -   40.00000      -     -    7s
H    0     0                       9.0000000   40.00000   344%     -   10s
H    0     0                      10.0000000   40.00000   300%     -   10s
     0     0   40.00000    0  740   10.00000   40.00000   300%     -   17s
     0     0   40.00000    0  733   10.00000   40.00000   300%     -   18s
H    0     0                      11.0000000   40.00000   264%     -   40s
     0     0   40.00000    0  541   11.00000   40.00000   264%     -   40s
     0     0   40.00000    0  571   11.00000   40.00000   264%     -   42s
     0     0   40.00000    0  706   11.00000   40.00000   264%     -   50s

Cutting planes:
  Gomory: 3
  Cover: 22
  Clique: 9
  MIR: 115
  GUB cover: 3
  Zero half: 61
  RLT: 63
  PSD: 1

Explored 1 nodes (49418 simplex iterations) in 50.07 seconds (45.80 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 11 10 9 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.000000000000e+01, gap 263.6364%

Wrote result file './lp_solutions/grafo3804.40.sol'

