
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:17:44 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3838.45.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/grafo3838.45.lp
Reading time = 0.38 seconds
: 197373 rows, 2402 columns, 594025 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 197373 rows, 2402 columns and 594025 nonzeros
Model fingerprint: 0x3ea82ab9
Variable types: 45 continuous, 2357 integer (2357 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 108291 rows and 63 columns
Presolve time: 1.43s
Presolved: 89082 rows, 2339 columns, 269517 nonzeros
Variable types: 0 continuous, 2339 integer (2294 binary)
Root relaxation presolved: 2336 rows, 91418 columns, 271856 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16740    4.1907558e+01   0.000000e+00   6.404992e+04      5s
   36491    4.1888397e+01   0.000000e+00   1.941337e+02     10s
   39704    4.2000000e+01   0.000000e+00   0.000000e+00     11s
   39704    4.2000000e+01   0.000000e+00   0.000000e+00     11s
   39704    4.2000000e+01   0.000000e+00   0.000000e+00     11s

Root relaxation: objective 4.200000e+01, 39704 iterations, 9.30 seconds (5.97 work units)
Total elapsed time = 22.37s (DegenMoves)
Total elapsed time = 25.59s (DegenMoves)

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

     0     0   42.00000    0  514          -   42.00000      -     -   29s
H    0     0                      10.0000000   42.00000   320%     -   32s
     0     0   42.00000    0  751   10.00000   42.00000   320%     -   41s
H    0     0                      13.0000000   42.00000   223%     -   42s
     0     0   42.00000    0  687   13.00000   42.00000   223%     -   43s
     0     0          -    0        13.00000   42.00000   223%     -   50s

Cutting planes:
  Lift-and-project: 34
  Cover: 6
  Clique: 11
  MIR: 76
  GUB cover: 1
  Zero half: 49
  RLT: 39
  BQP: 4
  PSD: 1

Explored 1 nodes (61581 simplex iterations) in 50.03 seconds (39.29 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 13 10 

Time limit reached
Best objective 1.300000000000e+01, best bound 4.200000000000e+01, gap 223.0769%

Wrote result file './lp_solutions/grafo3838.45.sol'

