
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 07:38:55 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3243.39.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/grafo3243.39.lp
Reading time = 0.24 seconds
: 149383 rows, 2010 columns, 449706 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 149383 rows, 2010 columns and 449706 nonzeros
Model fingerprint: 0x2a58b01e
Variable types: 42 continuous, 1968 integer (1968 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 58871 rows and 27 columns
Presolve time: 1.14s
Presolved: 90512 rows, 1983 columns, 273489 nonzeros
Variable types: 0 continuous, 1983 integer (1941 binary)
Root relaxation presolved: 1983 rows, 92495 columns, 275472 nonzeros


Root relaxation: objective 4.500000e+01, 3327 iterations, 1.79 seconds (2.37 work units)
Total elapsed time = 16.96s (DegenMoves)
Total elapsed time = 20.31s (DegenMoves)

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

     0     0   45.00000    0  644          -   45.00000      -     -   24s
H    0     0                       7.0000000   45.00000   543%     -   24s
H    0     0                       8.0000000   45.00000   463%     -   24s
H    0     0                      10.0000000   45.00000   350%     -   24s
     0     0   45.00000    0  887   10.00000   45.00000   350%     -   42s
     0     0   45.00000    0  866   10.00000   45.00000   350%     -   46s

Cutting planes:
  Gomory: 3
  Lift-and-project: 2
  Cover: 4
  Clique: 28
  MIR: 96
  Zero half: 90
  RLT: 27
  BQP: 4
  PSD: 2

Explored 1 nodes (30815 simplex iterations) in 50.32 seconds (57.59 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 8 7 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.500000000000e+01, gap 350.0000%

Wrote result file './lp_solutions/grafo3243.39.sol'

