
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 17:54:03 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo768.28.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/grafo768.28.lp
Reading time = 0.14 seconds
: 64797 rows, 947 columns, 194961 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 64797 rows, 947 columns and 194961 nonzeros
Model fingerprint: 0x1400ab00
Variable types: 25 continuous, 922 integer (922 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 31851 rows and 4 columns
Presolve time: 0.45s
Presolved: 32946 rows, 943 columns, 99650 nonzeros
Variable types: 0 continuous, 943 integer (918 binary)
Root relaxation presolved: 942 rows, 33888 columns, 100593 nonzeros


Root relaxation: objective 2.800000e+01, 983 iterations, 0.27 seconds (0.21 work units)

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

     0     0   28.00000    0  234          -   28.00000      -     -    2s
H    0     0                       7.0000000   28.00000   300%     -    3s
     0     0   28.00000    0  320    7.00000   28.00000   300%     -    4s
H    0     0                       8.0000000   28.00000   250%     -    4s
     0     0   28.00000    0  323    8.00000   28.00000   250%     -    4s
     0     0   28.00000    0  308    8.00000   28.00000   250%     -   13s
     0     0   28.00000    0  309    8.00000   28.00000   250%     -   13s
H    0     0                      12.0000000   28.00000   133%     -   23s
     0     0   28.00000    0  324   12.00000   28.00000   133%     -   23s
     0     0   28.00000    0  279   12.00000   28.00000   133%     -   23s
H    0     0                      13.0000000   28.00000   115%     -   30s
     0     0   28.00000    0  329   13.00000   28.00000   115%     -   30s
H    0     0                      14.0000000   28.00000   100%     -   31s
     0     0   28.00000    0  322   14.00000   28.00000   100%     -   31s
     0     0   28.00000    0  309   14.00000   28.00000   100%     -   35s
     0     0   28.00000    0  298   14.00000   28.00000   100%     -   36s
     0     0   28.00000    0  304   14.00000   28.00000   100%     -   41s
     0     0   28.00000    0  304   14.00000   28.00000   100%     -   44s

Cutting planes:
  Cover: 2
  Clique: 19
  MIR: 28
  Zero half: 12
  RLT: 32
  BQP: 1
  PSD: 1

Explored 1 nodes (38287 simplex iterations) in 50.01 seconds (33.82 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 14 13 12 ... 7

Time limit reached
Best objective 1.400000000000e+01, best bound 2.800000000000e+01, gap 100.0000%

Wrote result file './lp_solutions/grafo768.28.sol'

