
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 04:41:10 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7766.40.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/grafo7766.40.lp
Reading time = 0.10 seconds
: 59915 rows, 1907 columns, 181198 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 59915 rows, 1907 columns and 181198 nonzeros
Model fingerprint: 0x265c3ba5
Variable types: 42 continuous, 1865 integer (1865 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 10614 rows and 27 columns
Presolve time: 0.40s
Presolved: 49301 rows, 1880 columns, 149698 nonzeros
Variable types: 0 continuous, 1880 integer (1838 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 27941 rows, 23240 columns, 106978 nonzeros


Root relaxation: objective 3.900000e+01, 4814 iterations, 2.74 seconds (2.62 work units)
Total elapsed time = 8.15s (DegenMoves)
Total elapsed time = 10.62s (DegenMoves)

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

     0     0   39.00000    0  625    5.00000   39.00000   680%     -   11s
H    0     0                       6.0000000   39.00000   550%     -   11s
H    0     0                       8.0000000   39.00000   387%     -   11s
H    0     0                      10.0000000   39.00000   290%     -   13s
     0     0   39.00000    0  801   10.00000   39.00000   290%     -   21s
     0     0   39.00000    0  765   10.00000   39.00000   290%     -   24s
     0     0   38.00000    0  509   10.00000   38.00000   280%     -   38s
     0     0   38.00000    0  549   10.00000   38.00000   280%     -   39s
     0     0   38.00000    0  707   10.00000   38.00000   280%     -   50s

Cutting planes:
  Cover: 36
  Clique: 5
  MIR: 141
  StrongCG: 2
  GUB cover: 2
  Zero half: 57
  RLT: 59
  BQP: 3

Explored 1 nodes (53588 simplex iterations) in 50.07 seconds (43.80 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 10 8 6 5 

Time limit reached
Best objective 1.000000000000e+01, best bound 3.800000000000e+01, gap 280.0000%

Wrote result file './lp_solutions/grafo7766.40.sol'

