
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 08:27:16 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7470.43.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/grafo7470.43.lp
Reading time = 0.11 seconds
: 65693 rows, 2114 columns, 198603 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 65693 rows, 2114 columns and 198603 nonzeros
Model fingerprint: 0xfde75927
Variable types: 43 continuous, 2071 integer (2071 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 9611 rows and 30 columns
Presolve time: 0.45s
Presolved: 56082 rows, 2084 columns, 170224 nonzeros
Variable types: 0 continuous, 2084 integer (2041 binary)
Root relaxation presolved: 2084 rows, 58166 columns, 172308 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   27783    3.9940374e+01   0.000000e+00   3.264638e+03      5s
   42525    4.0000000e+01   0.000000e+00   0.000000e+00      8s
   42525    4.0000000e+01   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 4.000000e+01, 42525 iterations, 7.23 seconds (5.90 work units)
Total elapsed time = 13.46s (DegenMoves)

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

     0     0   40.00000    0  477          -   40.00000      -     -   14s
H    0     0                       7.0000000   40.00000   471%     -   14s
H    0     0                       9.0000000   40.00000   344%     -   14s
     0     0   40.00000    0  840    9.00000   40.00000   344%     -   24s
H    0     0                      11.0000000   40.00000   264%     -   25s
     0     0   40.00000    0  789   11.00000   40.00000   264%     -   26s
     0     0   40.00000    0  473   11.00000   40.00000   264%     -   40s
     0     0   40.00000    0  456   11.00000   40.00000   264%     -   40s
     0     0   40.00000    0  721   11.00000   40.00000   264%     -   50s

Cutting planes:
  Cover: 39
  Clique: 5
  MIR: 168
  StrongCG: 2
  GUB cover: 10
  Zero half: 71
  RLT: 60

Explored 1 nodes (82424 simplex iterations) in 50.08 seconds (43.39 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 11 9 7 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.000000000000e+01, gap 263.6364%

Wrote result file './lp_solutions/grafo7470.43.sol'

