
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 02:32:08 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7393.42.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/grafo7393.42.lp
Reading time = 0.11 seconds
: 53280 rows, 1961 columns, 161283 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 53280 rows, 1961 columns and 161283 nonzeros
Model fingerprint: 0x7d055444
Variable types: 40 continuous, 1921 integer (1921 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 6148 rows and 28 columns
Presolve time: 0.42s
Presolved: 47132 rows, 1933 columns, 143294 nonzeros
Variable types: 0 continuous, 1933 integer (1893 binary)
Root relaxation presolved: 25772 rows, 23293 columns, 100574 nonzeros


Root relaxation: objective 3.400000e+01, 1923 iterations, 0.73 seconds (0.46 work units)

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

     0     0   34.00000    0  426          -   34.00000      -     -    2s
H    0     0                       9.0000000   34.00000   278%     -    3s
H    0     0                      10.0000000   34.00000   240%     -    3s
H    0     0                      11.0000000   34.00000   209%     -    9s
     0     0   34.00000    0  614   11.00000   34.00000   209%     -    9s
     0     0   34.00000    0  594   11.00000   34.00000   209%     -   10s
H    0     0                      12.0000000   33.00000   175%     -   23s
H    0     0                      13.0000000   33.00000   154%     -   23s
H    0     0                      14.0000000   33.00000   136%     -   23s
     0     0   33.00000    0  399   14.00000   33.00000   136%     -   23s
     0     0   33.00000    0  468   14.00000   33.00000   136%     -   24s
     0     0   33.00000    0  356   14.00000   33.00000   136%     -   33s
     0     0   33.00000    0  433   14.00000   33.00000   136%     -   34s
     0     0   33.00000    0  299   14.00000   33.00000   136%     -   39s
H    0     0                      15.0000000   33.00000   120%     -   39s
     0     0   33.00000    0  326   15.00000   33.00000   120%     -   40s
     0     0   33.00000    0  318   15.00000   33.00000   120%     -   45s
     0     0   33.00000    0  325   15.00000   33.00000   120%     -   45s
     0     0   33.00000    0  450   15.00000   33.00000   120%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 31
  Clique: 2
  MIR: 95
  GUB cover: 5
  Zero half: 31
  RLT: 52

Explored 1 nodes (53578 simplex iterations) in 50.08 seconds (32.03 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 15 14 13 ... 9

Time limit reached
Best objective 1.500000000000e+01, best bound 3.300000000000e+01, gap 120.0000%

Wrote result file './lp_solutions/grafo7393.42.sol'

