
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:16:53 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7206.43.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/grafo7206.43.lp
Reading time = 0.25 seconds
: 127864 rows, 2197 columns, 385282 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 127864 rows, 2197 columns and 385282 nonzeros
Model fingerprint: 0x25f0b17e
Variable types: 43 continuous, 2154 integer (2154 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 46758 rows and 23 columns
Presolve time: 1.12s
Presolved: 81106 rows, 2174 columns, 245491 nonzeros
Variable types: 0 continuous, 2174 integer (2131 binary)
Root relaxation presolved: 2174 rows, 83280 columns, 247665 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17753    4.1976419e+01   0.000000e+00   1.973476e+04      5s
   38567    4.1960197e+01   0.000000e+00   5.053338e+03     10s
   52862    4.2000000e+01   0.000000e+00   0.000000e+00     14s
   52862    4.2000000e+01   0.000000e+00   0.000000e+00     14s

Root relaxation: objective 4.200000e+01, 52862 iterations, 12.32 seconds (7.74 work units)
Total elapsed time = 24.56s (DegenMoves)
Total elapsed time = 25.69s (DegenMoves)

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

     0     0   42.00000    0  331          -   42.00000      -     -   26s
H    0     0                       5.0000000   42.00000   740%     -   28s
     0     0   42.00000    0  613    5.00000   42.00000   740%     -   35s
H    0     0                      11.0000000   42.00000   282%     -   36s
     0     0   42.00000    0  584   11.00000   42.00000   282%     -   36s
     0     0   42.00000    0  644   11.00000   42.00000   282%     -   50s

Cutting planes:
  Gomory: 4
  Lift-and-project: 60
  Cover: 30
  Clique: 16
  MIR: 115
  StrongCG: 3
  Zero half: 37
  RLT: 57
  BQP: 8

Explored 1 nodes (74597 simplex iterations) in 50.04 seconds (39.89 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 5 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.200000000000e+01, gap 281.8182%

Wrote result file './lp_solutions/grafo7206.43.sol'

