
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 03:25:53 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7554.38.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/grafo7554.38.lp
Reading time = 0.12 seconds
: 71353 rows, 1798 columns, 215423 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 71353 rows, 1798 columns and 215423 nonzeros
Model fingerprint: 0xe24120cb
Variable types: 40 continuous, 1758 integer (1758 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 26982 rows and 47 columns
Presolve time: 0.43s
Presolved: 44371 rows, 1751 columns, 134804 nonzeros
Variable types: 0 continuous, 1751 integer (1711 binary)
Root relaxation presolved: 26055 rows, 20067 columns, 98172 nonzeros


Root relaxation: objective 4.000000e+01, 2917 iterations, 1.25 seconds (1.17 work units)
Total elapsed time = 5.38s (DegenMoves)

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

     0     0   40.00000    0  395          -   40.00000      -     -    6s
H    0     0                       7.0000000   40.00000   471%     -    6s
     0     0   40.00000    0  671    7.00000   40.00000   471%     -   12s
H    0     0                       8.0000000   40.00000   400%     -   12s
     0     0   40.00000    0  671    8.00000   40.00000   400%     -   12s
     0     0   40.00000    0  475    8.00000   40.00000   400%     -   21s
H    0     0                      12.0000000   40.00000   233%     -   22s
H    0     0                      14.0000000   40.00000   186%     -   22s
     0     0   40.00000    0  438   14.00000   40.00000   186%     -   22s
     0     0   40.00000    0  512   14.00000   40.00000   186%     -   40s
     0     0   40.00000    0  496   14.00000   40.00000   186%     -   40s
     0     0   40.00000    0  480   14.00000   40.00000   186%     -   49s
     0     0          -    0        14.00000   40.00000   186%     -   50s

Cutting planes:
  Clique: 7
  MIR: 27
  Zero half: 3
  RLT: 30
  BQP: 1

Explored 1 nodes (62206 simplex iterations) in 50.06 seconds (48.82 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 14 12 8 7 

Time limit reached
Best objective 1.400000000000e+01, best bound 4.000000000000e+01, gap 185.7143%

Wrote result file './lp_solutions/grafo7554.38.sol'

