
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 21:28:17 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7087.37.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/grafo7087.37.lp
Reading time = 0.15 seconds
: 87366 rows, 1518 columns, 263081 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 87366 rows, 1518 columns and 263081 nonzeros
Model fingerprint: 0xeef8b662
Variable types: 34 continuous, 1484 integer (1484 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 34526 rows and 16 columns
Presolve time: 0.57s
Presolved: 52840 rows, 1502 columns, 159704 nonzeros
Variable types: 0 continuous, 1502 integer (1468 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 1502 rows, 54342 columns, 161206 nonzeros


Root relaxation: objective 3.700000e+01, 2040 iterations, 0.54 seconds (0.62 work units)
Total elapsed time = 5.94s (DegenMoves)

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

     0     0   37.00000    0  391    9.00000   37.00000   311%     -    6s
H    0     0                      12.0000000   37.00000   208%     -    8s
     0     0   37.00000    0  431   12.00000   37.00000   208%     -   10s
H    0     0                      14.0000000   37.00000   164%     -   11s
     0     0   37.00000    0  442   14.00000   37.00000   164%     -   11s
     0     0   36.98000    0  281   14.00000   36.98000   164%     -   19s
     0     0   36.98000    0  274   14.00000   36.98000   164%     -   20s
     0     0   36.98000    0  373   14.00000   36.98000   164%     -   25s
     0     0   36.98000    0  349   14.00000   36.98000   164%     -   25s
H    0     0                      15.0000000   36.98000   147%     -   31s
     0     0   36.98000    0  370   15.00000   36.98000   147%     -   31s
     0     0   36.98000    0  359   15.00000   36.98000   147%     -   31s
     0     0   36.98000    0  330   15.00000   36.98000   147%     -   35s
     0     0   36.97778    0  322   15.00000   36.97778   147%     -   35s
     0     0   36.90000    0  444   15.00000   36.90000   146%     -   41s
     0     0   36.90000    0  433   15.00000   36.90000   146%     -   42s
     0     0   36.90000    0  424   15.00000   36.90000   146%     -   50s

Cutting planes:
  Cover: 23
  Clique: 19
  MIR: 139
  StrongCG: 2
  GUB cover: 1
  Zero half: 57
  RLT: 69
  BQP: 2

Explored 1 nodes (52421 simplex iterations) in 50.05 seconds (46.45 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 15 14 12 9 

Time limit reached
Best objective 1.500000000000e+01, best bound 3.600000000000e+01, gap 140.0000%

Wrote result file './lp_solutions/grafo7087.37.sol'

