
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 06:06:14 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3794.41.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/grafo3794.41.lp
Reading time = 0.15 seconds
: 96000 rows, 2131 columns, 289720 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 96000 rows, 2131 columns and 289720 nonzeros
Model fingerprint: 0x2d323b9f
Variable types: 44 continuous, 2087 integer (2087 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 26845 rows and 29 columns
Presolve time: 0.66s
Presolved: 69155 rows, 2102 columns, 209502 nonzeros
Variable types: 0 continuous, 2102 integer (2058 binary)
Root relaxation presolved: 2102 rows, 71257 columns, 211604 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   25265    4.6935536e+01   0.000000e+00   5.238272e+03      5s
   41592    4.7000000e+01   0.000000e+00   0.000000e+00      8s
   41592    4.7000000e+01   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 4.700000e+01, 41592 iterations, 7.54 seconds (6.73 work units)
Total elapsed time = 16.34s (DegenMoves)

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

     0     0   47.00000    0  432          -   47.00000      -     -   20s
H    0     0                       8.0000000   47.00000   487%     -   20s
H    0     0                       9.0000000   47.00000   422%     -   20s
     0     0   47.00000    0  630    9.00000   47.00000   422%     -   26s
     0     0   47.00000    0  623    9.00000   47.00000   422%     -   27s
H    0     0                      10.0000000   47.00000   370%     -   48s
     0     0   47.00000    0  496   10.00000   47.00000   370%     -   48s
H    0     0                      11.0000000   47.00000   327%     -   49s
     0     0          -    0        11.00000   47.00000   327%     -   50s

Cutting planes:
  Gomory: 2
  Lift-and-project: 1
  Cover: 7
  Clique: 13
  MIR: 47
  StrongCG: 1
  GUB cover: 2
  Zero half: 3
  RLT: 32
  BQP: 1

Explored 1 nodes (78755 simplex iterations) in 50.07 seconds (51.79 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 11 10 9 8 

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

Wrote result file './lp_solutions/grafo3794.41.sol'

