
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 05:12:47 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5809.36.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/grafo5809.36.lp
Reading time = 0.40 seconds
: 251327 rows, 1720 columns, 755311 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 251327 rows, 1720 columns and 755311 nonzeros
Model fingerprint: 0xc22437f7
Variable types: 37 continuous, 1683 integer (1683 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 5.0000000
Presolve removed 118600 rows and 2 columns
Presolve time: 1.73s
Presolved: 132727 rows, 1718 columns, 399756 nonzeros
Variable types: 0 continuous, 1718 integer (1681 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 1713 rows, 134440 columns, 401474 nonzeros


Root relaxation: objective 4.100000e+01, 1981 iterations, 1.18 seconds (1.48 work units)
Total elapsed time = 10.73s (DegenMoves)

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

     0     0   41.00000    0  451   11.00000   41.00000   273%     -   14s
H    0     0                      12.0000000   41.00000   242%     -   14s
     0     0   41.00000    0  650   12.00000   41.00000   242%     -   27s
     0     0   41.00000    0  643   12.00000   41.00000   242%     -   29s
     0     0   41.00000    0  672   12.00000   41.00000   242%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 58
  Cover: 14
  Clique: 59
  MIR: 59
  Zero half: 22
  RLT: 71
  BQP: 7

Explored 1 nodes (19524 simplex iterations) in 50.04 seconds (57.00 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 12 11 5 

Time limit reached
Best objective 1.200000000000e+01, best bound 4.100000000000e+01, gap 241.6667%

Wrote result file './lp_solutions/grafo5809.36.sol'

