
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 20:41:21 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10734.37.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/grafo10734.37.lp
Reading time = 0.14 seconds
: 84092 rows, 2024 columns, 254050 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 84092 rows, 2024 columns and 254050 nonzeros
Model fingerprint: 0x00ce6e8f
Variable types: 45 continuous, 1979 integer (1979 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]
Found heuristic solution: objective 3.0000000
Presolve removed 23176 rows and 16 columns
Presolve time: 0.57s
Presolved: 60916 rows, 2008 columns, 184911 nonzeros
Variable types: 0 continuous, 2008 integer (1963 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 2008 rows, 62924 columns, 186919 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24598    5.0937094e+01   0.000000e+00   3.058065e+04      5s
   49260    5.0927843e+01   0.000000e+00   9.666678e+01     10s
   52782    5.1000000e+01   0.000000e+00   0.000000e+00     11s
   52782    5.1000000e+01   0.000000e+00   0.000000e+00     11s

Root relaxation: objective 5.100000e+01, 52782 iterations, 10.04 seconds (8.31 work units)
Total elapsed time = 18.10s (DegenMoves)

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

     0     0   51.00000    0  363   11.00000   51.00000   364%     -   19s
H    0     0                      15.0000000   51.00000   240%     -   19s
     0     0   51.00000    0  689   15.00000   51.00000   240%     -   28s
     0     0   51.00000    0  684   15.00000   51.00000   240%     -   29s
     0     0   51.00000    0  722   15.00000   51.00000   240%     -   50s

Cutting planes:
  Gomory: 6
  Lift-and-project: 30
  Cover: 15
  Clique: 14
  MIR: 115
  StrongCG: 1
  Zero half: 10
  RLT: 59

Explored 1 nodes (81991 simplex iterations) in 50.07 seconds (42.49 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 15 11 3 

Time limit reached
Best objective 1.500000000000e+01, best bound 5.100000000000e+01, gap 240.0000%

Wrote result file './lp_solutions/grafo10734.37.sol'

