
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 06:59:26 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6302.38.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/grafo6302.38.lp
Reading time = 0.15 seconds
: 94120 rows, 1991 columns, 284076 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 94120 rows, 1991 columns and 284076 nonzeros
Model fingerprint: 0xe472892a
Variable types: 44 continuous, 1947 integer (1947 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 27754 rows and 18 columns
Presolve time: 0.69s
Presolved: 66366 rows, 1973 columns, 201134 nonzeros
Variable types: 0 continuous, 1973 integer (1929 binary)
Root relaxation presolved: 1973 rows, 68339 columns, 203107 nonzeros


Root relaxation: objective 3.800000e+01, 2426 iterations, 0.68 seconds (0.71 work units)
Total elapsed time = 7.14s (DegenMoves)

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

     0     0   38.00000    0  461          -   38.00000      -     -    8s
H    0     0                       8.0000000   38.00000   375%     -    8s
H    0     0                       9.0000000   38.00000   322%     -    8s
H    0     0                      10.0000000   38.00000   280%     -   10s
H    0     0                      11.0000000   38.00000   245%     -   16s
     0     0   38.00000    0  728   11.00000   38.00000   245%     -   16s
     0     0   37.83333    0  655   11.00000   37.83333   244%     -   16s
H    0     0                      12.0000000   37.00000   208%     -   37s
     0     0   37.00000    0  637   12.00000   37.00000   208%     -   37s
     0     0   37.00000    0  622   12.00000   37.00000   208%     -   39s
     0     0   37.00000    0  627   12.00000   37.00000   208%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 22
  Clique: 30
  MIR: 120
  StrongCG: 3
  GUB cover: 2
  Zero half: 38
  RLT: 74
  BQP: 7

Explored 1 nodes (41865 simplex iterations) in 50.10 seconds (47.83 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 12 11 10 ... 8

Time limit reached
Best objective 1.200000000000e+01, best bound 3.700000000000e+01, gap 208.3333%

Wrote result file './lp_solutions/grafo6302.38.sol'

