
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 18:26:02 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1411.32.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/grafo1411.32.lp
Reading time = 0.10 seconds
: 60938 rows, 1334 columns, 183761 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 60938 rows, 1334 columns and 183761 nonzeros
Model fingerprint: 0xabb93135
Variable types: 33 continuous, 1301 integer (1301 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 22550 rows and 8 columns
Presolve time: 0.37s
Presolved: 38388 rows, 1326 columns, 116441 nonzeros
Variable types: 0 continuous, 1326 integer (1293 binary)
Root relaxation presolved: 27972 rows, 11742 columns, 95609 nonzeros


Root relaxation: objective 3.300000e+01, 1212 iterations, 0.41 seconds (0.38 work units)

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

     0     0   33.00000    0  273          -   33.00000      -     -    1s
H    0     0                       8.0000000   33.00000   312%     -    1s
H    0     0                       9.0000000   33.00000   267%     -    1s
H    0     0                      10.0000000   33.00000   230%     -    5s
     0     0   33.00000    0  497   10.00000   33.00000   230%     -    5s
     0     0   33.00000    0  489   10.00000   33.00000   230%     -    5s
     0     0   33.00000    0  319   10.00000   33.00000   230%     -   14s
H    0     0                      11.0000000   33.00000   200%     -   14s
     0     0   33.00000    0  303   11.00000   33.00000   200%     -   14s
H    0     0                      12.0000000   33.00000   175%     -   21s
     0     0   33.00000    0  290   12.00000   33.00000   175%     -   21s
     0     0   33.00000    0  312   12.00000   33.00000   175%     -   22s
     0     0   33.00000    0  349   12.00000   33.00000   175%     -   27s
     0     0   33.00000    0  356   12.00000   33.00000   175%     -   28s
H    0     0                      13.0000000   33.00000   154%     -   36s
     0     0   33.00000    0  306   13.00000   33.00000   154%     -   36s
     0     0   33.00000    0  287   13.00000   33.00000   154%     -   36s
     0     0   33.00000    0  383   13.00000   33.00000   154%     -   45s
     0     0   33.00000    0  382   13.00000   33.00000   154%     -   46s
H    0     0                      15.0000000   33.00000   120%     -   49s

Cutting planes:
  Cover: 3
  Clique: 13
  MIR: 11
  Zero half: 2
  RLT: 7

Explored 1 nodes (55446 simplex iterations) in 50.01 seconds (46.32 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 15 13 12 ... 8

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

Wrote result file './lp_solutions/grafo1411.32.sol'

