
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 05:22:34 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6142.40.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/grafo6142.40.lp
Reading time = 0.18 seconds
: 111832 rows, 2172 columns, 337337 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 111832 rows, 2172 columns and 337337 nonzeros
Model fingerprint: 0x2480a1b3
Variable types: 46 continuous, 2126 integer (2126 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 35983 rows and 22 columns
Presolve time: 0.83s
Presolved: 75849 rows, 2150 columns, 229697 nonzeros
Variable types: 0 continuous, 2150 integer (2104 binary)
Root relaxation presolved: 2150 rows, 77999 columns, 231847 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24551    4.7949318e+01   0.000000e+00   7.911407e+03      5s
   49908    4.7939138e+01   0.000000e+00   1.110652e+03     10s
   61139    4.8000000e+01   0.000000e+00   0.000000e+00     12s
   61139    4.8000000e+01   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 4.800000e+01, 61139 iterations, 11.19 seconds (9.08 work units)
Total elapsed time = 27.96s (DegenMoves)

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

     0     0   48.00000    0  580          -   48.00000      -     -   30s
H    0     0                       5.0000000   48.00000   860%     -   32s
H    0     0                       6.0000000   48.00000   700%     -   44s
H    0     0                      10.0000000   48.00000   380%     -   44s
     0     0   48.00000    0  798   10.00000   48.00000   380%     -   44s
     0     0          -    0        10.00000   48.00000   380%     -   50s

Cutting planes:
  Gomory: 2
  Clique: 9
  MIR: 85
  Zero half: 15
  RLT: 30
  BQP: 1

Explored 1 nodes (87180 simplex iterations) in 50.08 seconds (46.82 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 6 5 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.800000000000e+01, gap 380.0000%

Wrote result file './lp_solutions/grafo6142.40.sol'

