
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 01:13:52 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo468.19.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/grafo468.19.lp
Reading time = 0.31 seconds
: 189499 rows, 966 columns, 569316 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 189499 rows, 966 columns and 569316 nonzeros
Model fingerprint: 0x4ea1a7b0
Variable types: 30 continuous, 936 integer (936 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 -0.0000000
Presolve removed 96831 rows and 6 columns
Presolve time: 1.41s
Presolved: 92668 rows, 960 columns, 279003 nonzeros
Variable types: 0 continuous, 960 integer (930 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 957 rows, 93625 columns, 279963 nonzeros


Root relaxation: objective 3.900000e+01, 1506 iterations, 1.01 seconds (1.42 work units)
Total elapsed time = 7.85s (DegenMoves)
Total elapsed time = 10.60s (DegenMoves)

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

     0     0   39.00000    0  413    8.00000   39.00000   387%     -   11s
     0     0   39.00000    0  427    8.00000   39.00000   387%     -   16s
H    0     0                       9.0000000   39.00000   333%     -   17s
     0     0   39.00000    0  389    9.00000   39.00000   333%     -   18s
     0     0   39.00000    0  419    9.00000   39.00000   333%     -   35s
     0     0   39.00000    0  408    9.00000   39.00000   333%     -   36s
     0     0   39.00000    0  448    9.00000   39.00000   333%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 25
  Clique: 33
  MIR: 66
  StrongCG: 2
  Zero half: 117
  RLT: 66
  BQP: 1

Explored 1 nodes (24110 simplex iterations) in 50.03 seconds (56.88 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 9 8 -0 

Time limit reached
Best objective 9.000000000000e+00, best bound 3.900000000000e+01, gap 333.3333%

Wrote result file './lp_solutions/grafo468.19.sol'

