
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 04:07:50 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo4060.39.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/grafo4060.39.lp
Reading time = 0.18 seconds
: 113331 rows, 2019 columns, 341651 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 113331 rows, 2019 columns and 341651 nonzeros
Model fingerprint: 0x2391651a
Variable types: 43 continuous, 1976 integer (1976 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 43428 rows and 19 columns
Presolve time: 0.74s
Presolved: 69903 rows, 2000 columns, 211855 nonzeros
Variable types: 0 continuous, 2000 integer (1957 binary)
Root relaxation presolved: 1991 rows, 71894 columns, 213855 nonzeros


Root relaxation: objective 4.200000e+01, 3377 iterations, 1.48 seconds (1.82 work units)
Total elapsed time = 13.50s (DegenMoves)

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

     0     0   42.00000    0  706          -   42.00000      -     -   24s
H    0     0                       8.0000000   42.00000   425%     -   24s
     0     0   42.00000    0  803    8.00000   42.00000   425%     -   38s
H    0     0                       9.0000000   42.00000   367%     -   39s
     0     0   42.00000    0  754    9.00000   42.00000   367%     -   39s
H    0     0                      10.0000000   42.00000   320%     -   44s
     0     0          -    0        10.00000   42.00000   320%     -   50s

Cutting planes:
  Gomory: 4
  Lift-and-project: 41
  Cover: 8
  Clique: 14
  MIR: 106
  StrongCG: 2
  Zero half: 26
  RLT: 49
  BQP: 5

Explored 1 nodes (36001 simplex iterations) in 50.08 seconds (54.06 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 9 8 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.200000000000e+01, gap 320.0000%

Wrote result file './lp_solutions/grafo4060.39.sol'

