
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 08:26:26 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7444.43.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/grafo7444.43.lp
Reading time = 0.13 seconds
: 85558 rows, 2473 columns, 258819 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 85558 rows, 2473 columns and 258819 nonzeros
Model fingerprint: 0xa2b8160b
Variable types: 50 continuous, 2423 integer (2423 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 13436 rows and 28 columns
Presolve time: 0.58s
Presolved: 72122 rows, 2445 columns, 218999 nonzeros
Variable types: 0 continuous, 2445 integer (2395 binary)
Root relaxation presolved: 2439 rows, 74561 columns, 221444 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   22164    4.6937478e+01   0.000000e+00   1.987594e+04      5s
   42932    4.6921263e+01   0.000000e+00   1.266373e+04     10s
   59485    4.7000000e+01   0.000000e+00   0.000000e+00     14s
   59485    4.7000000e+01   0.000000e+00   0.000000e+00     14s
   59485    4.7000000e+01   0.000000e+00   0.000000e+00     14s

Root relaxation: objective 4.700000e+01, 59485 iterations, 13.36 seconds (12.07 work units)
Total elapsed time = 25.66s (DegenMoves)
Total elapsed time = 38.31s (DegenMoves)
Total elapsed time = 42.57s (DegenMoves)

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

     0     0   47.00000    0  556          -   47.00000      -     -   43s
H    0     0                       9.0000000   47.00000   422%     -   43s
H    0     0                      10.0000000   47.00000   370%     -   43s
H    0     0                      11.0000000   47.00000   327%     -   47s
     0     0          -    0        11.00000   47.00000   327%     -   50s

Cutting planes:
  Gomory: 36
  Cover: 20
  Clique: 1
  MIR: 213
  GUB cover: 5
  Zero half: 74
  RLT: 55
  BQP: 1

Explored 1 nodes (92748 simplex iterations) in 50.08 seconds (54.51 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 11 10 9 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.700000000000e+01, gap 327.2727%

Wrote result file './lp_solutions/grafo7444.43.sol'

