
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 06:37:17 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6985.41.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/grafo6985.41.lp
Reading time = 0.10 seconds
: 60847 rows, 2001 columns, 184086 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 60847 rows, 2001 columns and 184086 nonzeros
Model fingerprint: 0x1df969c4
Variable types: 43 continuous, 1958 integer (1958 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 8537 rows and 30 columns
Presolve time: 0.41s
Presolved: 52310 rows, 1971 columns, 158929 nonzeros
Variable types: 0 continuous, 1971 integer (1928 binary)
Root relaxation presolved: 29309 rows, 24972 columns, 112927 nonzeros


Root relaxation: objective 3.300000e+01, 1788 iterations, 0.57 seconds (0.53 work units)

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

     0     0   33.00000    0  356          -   33.00000      -     -    2s
H    0     0                       7.0000000   33.00000   371%     -    2s
H    0     0                       8.0000000   33.00000   312%     -    3s
H    0     0                       9.0000000   33.00000   267%     -    3s
     0     0   33.00000    0  624    9.00000   33.00000   267%     -    8s
     0     0   33.00000    0  614    9.00000   33.00000   267%     -    8s
H    0     0                      11.0000000   33.00000   200%     -   38s
H    0     0                      12.0000000   33.00000   175%     -   38s
H    0     0                      13.0000000   33.00000   154%     -   38s
H    0     0                      14.0000000   33.00000   136%     -   38s
H    0     0                      15.0000000   33.00000   120%     -   38s
H    0     0                      16.0000000   33.00000   106%     -   38s
H    0     0                      17.0000000   33.00000  94.1%     -   38s
     0     0   33.00000    0  620   17.00000   33.00000  94.1%     -   38s
     0     0   33.00000    0  613   17.00000   33.00000  94.1%     -   40s
     0     0   33.00000    0  447   17.00000   33.00000  94.1%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 22
  Clique: 7
  MIR: 87
  StrongCG: 1
  GUB cover: 2
  Zero half: 42
  RLT: 46
  BQP: 1

Explored 1 nodes (48922 simplex iterations) in 50.07 seconds (43.58 work units)
Thread count was 8 (of 8 available processors)

Solution count 10: 17 16 15 ... 7

Time limit reached
Best objective 1.700000000000e+01, best bound 3.300000000000e+01, gap 94.1176%

Wrote result file './lp_solutions/grafo6985.41.sol'

