
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 08:12:37 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo9900.39.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/grafo9900.39.lp
Reading time = 0.09 seconds
: 56241 rows, 1518 columns, 169626 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 56241 rows, 1518 columns and 169626 nonzeros
Model fingerprint: 0x3c993f02
Variable types: 33 continuous, 1485 integer (1485 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]
Found heuristic solution: objective 1.0000000
Presolve removed 14789 rows and 24 columns
Presolve time: 0.39s
Presolved: 41452 rows, 1494 columns, 125625 nonzeros
Variable types: 0 continuous, 1494 integer (1461 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 26857 rows, 16089 columns, 96435 nonzeros


Root relaxation: objective 2.300000e+01, 965 iterations, 0.31 seconds (0.32 work units)

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

     0     0   23.00000    0  179    6.00000   23.00000   283%     -    1s
H    0     0                       8.0000000   23.00000   187%     -    1s
H    0     0                       9.0000000   23.00000   156%     -    1s
     0     0   23.00000    0  432    9.00000   23.00000   156%     -    3s
     0     0   23.00000    0  419    9.00000   23.00000   156%     -    4s
     0     0   23.00000    0  324    9.00000   23.00000   156%     -    8s
     0     0   23.00000    0  289    9.00000   23.00000   156%     -    8s
H    0     0                      10.0000000   23.00000   130%     -   24s
     0     0   23.00000    0  304   10.00000   23.00000   130%     -   24s
     0     0   23.00000    0  227   10.00000   23.00000   130%     -   25s
     0     0   23.00000    0  178   10.00000   23.00000   130%     -   27s
     0     0   23.00000    0  154   10.00000   23.00000   130%     -   28s
     0     0   23.00000    0  336   10.00000   23.00000   130%     -   31s
     0     0   23.00000    0  314   10.00000   23.00000   130%     -   31s
     0     0   23.00000    0  332   10.00000   23.00000   130%     -   34s
     0     0   23.00000    0  317   10.00000   23.00000   130%     -   35s
     0     2   23.00000    0  317   10.00000   23.00000   130%     -   39s
     3     8   23.00000    2  266   10.00000   23.00000   130%   677   40s
   107   111   20.66667   18  175   10.00000   23.00000   130%   203   45s
   168   162   20.00000   27  165   10.00000   23.00000   130%   287   50s

Cutting planes:
  Gomory: 1
  Cover: 9
  Clique: 16
  MIR: 65
  StrongCG: 1
  GUB cover: 1
  Zero half: 2
  RLT: 30
  BQP: 1

Explored 171 nodes (100236 simplex iterations) in 50.06 seconds (55.33 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 10 9 8 ... 1

Time limit reached
Best objective 1.000000000000e+01, best bound 2.300000000000e+01, gap 130.0000%

Wrote result file './lp_solutions/grafo9900.39.sol'

