
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 02:45:50 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2811.29.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/grafo2811.29.lp
Reading time = 0.30 seconds
: 184165 rows, 1418 columns, 553687 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 184165 rows, 1418 columns and 553687 nonzeros
Model fingerprint: 0x7655d2d9
Variable types: 34 continuous, 1384 integer (1384 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 88026 rows and 0 columns
Presolve time: 1.24s
Presolved: 96139 rows, 1418 columns, 289939 nonzeros
Variable types: 0 continuous, 1418 integer (1384 binary)
Root relaxation presolved: 1415 rows, 97554 columns, 291357 nonzeros


Root relaxation: objective 3.800000e+01, 2321 iterations, 1.23 seconds (1.57 work units)
Total elapsed time = 8.61s (DegenMoves)
Total elapsed time = 11.89s (DegenMoves)

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

     0     0   38.00000    0  425          -   38.00000      -     -   13s
H    0     0                       9.0000000   38.00000   322%     -   13s
     0     0   38.00000    0  493    9.00000   38.00000   322%     -   20s
     0     0   38.00000    0  495    9.00000   38.00000   322%     -   22s
     0     0   38.00000    0  389    9.00000   38.00000   322%     -   37s
     0     0   38.00000    0  474    9.00000   38.00000   322%     -   40s
     0     0   38.00000    0  461    9.00000   38.00000   322%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 2
  Cover: 23
  Clique: 34
  MIR: 119
  StrongCG: 3
  Zero half: 99
  RLT: 85
  Relax-and-lift: 1
  BQP: 3

Explored 1 nodes (32653 simplex iterations) in 50.05 seconds (59.61 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 9 

Time limit reached
Best objective 9.000000000000e+00, best bound 3.800000000000e+01, gap 322.2222%

Wrote result file './lp_solutions/grafo2811.29.sol'

