
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 09:29:23 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3775.45.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/grafo3775.45.lp
Reading time = 0.17 seconds
: 106000 rows, 2490 columns, 320007 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 106000 rows, 2490 columns and 320007 nonzeros
Model fingerprint: 0xcd829994
Variable types: 48 continuous, 2442 integer (2442 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 25592 rows and 28 columns
Presolve time: 0.74s
Presolved: 80408 rows, 2462 columns, 243681 nonzeros
Variable types: 0 continuous, 2462 integer (2414 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2459 rows, 82867 columns, 246143 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24389    4.6946605e+01   0.000000e+00   4.515031e+04      5s
   45547    4.7000000e+01   0.000000e+00   0.000000e+00      9s
   45547    4.7000000e+01   0.000000e+00   0.000000e+00     10s
   45547    4.7000000e+01   0.000000e+00   0.000000e+00     10s

Root relaxation: objective 4.700000e+01, 45547 iterations, 8.62 seconds (7.14 work units)
Total elapsed time = 21.18s (DegenMoves)

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

     0     0   47.00000    0  548   10.00000   47.00000   370%     -   25s
H    0     0                      11.0000000   47.00000   327%     -   25s
     0     0   47.00000    0  835   11.00000   47.00000   327%     -   38s
     0     0   47.00000    0  820   11.00000   47.00000   327%     -   39s
     0     0          -    0        11.00000   47.00000   327%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 25
  Cover: 19
  Clique: 18
  MIR: 119
  GUB cover: 2
  Zero half: 47
  RLT: 71
  BQP: 4

Explored 1 nodes (74676 simplex iterations) in 50.01 seconds (49.31 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 10 

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

Wrote result file './lp_solutions/grafo3775.45.sol'

