
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 03:34:39 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3907.33.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/grafo3907.33.lp
Reading time = 0.12 seconds
: 72969 rows, 1432 columns, 219966 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 72969 rows, 1432 columns and 219966 nonzeros
Model fingerprint: 0x32e3e588
Variable types: 35 continuous, 1397 integer (1397 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 26835 rows and 18 columns
Presolve time: 0.53s
Presolved: 46134 rows, 1414 columns, 139780 nonzeros
Variable types: 0 continuous, 1414 integer (1379 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 1414 rows, 47548 columns, 141194 nonzeros


Root relaxation: objective 3.300000e+01, 2681 iterations, 0.91 seconds (1.29 work units)
Total elapsed time = 6.31s (DegenMoves)

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

     0     0   33.00000    0  493    6.00000   33.00000   450%     -    9s
H    0     0                       7.0000000   33.00000   371%     -    9s
     0     0   33.00000    0  586    7.00000   33.00000   371%     -   16s
H    0     0                       8.0000000   33.00000   312%     -   17s
     0     0   33.00000    0  556    8.00000   33.00000   312%     -   17s
     0     0   33.00000    0  437    8.00000   33.00000   312%     -   35s
     0     0   33.00000    0  352    8.00000   33.00000   312%     -   36s
H    0     0                       9.0000000   33.00000   267%     -   44s
     0     0   33.00000    0  485    9.00000   33.00000   267%     -   44s
     0     0   33.00000    0  498    9.00000   33.00000   267%     -   45s
     0     0   33.00000    0  564    9.00000   33.00000   267%     -   50s

Cutting planes:
  Cover: 15
  Clique: 8
  MIR: 89
  StrongCG: 4
  GUB cover: 1
  Zero half: 44
  RLT: 57
  BQP: 1

Explored 1 nodes (51295 simplex iterations) in 50.04 seconds (50.06 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 9 8 7 ... 1

Time limit reached
Best objective 9.000000000000e+00, best bound 3.300000000000e+01, gap 266.6667%

Wrote result file './lp_solutions/grafo3907.33.sol'

