
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:02:08 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7582.45.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/grafo7582.45.lp
Reading time = 0.20 seconds
: 120921 rows, 2371 columns, 364550 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 120921 rows, 2371 columns and 364550 nonzeros
Model fingerprint: 0x246fb7bc
Variable types: 45 continuous, 2326 integer (2326 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 37340 rows and 11 columns
Presolve time: 0.76s
Presolved: 83581 rows, 2360 columns, 252850 nonzeros
Variable types: 0 continuous, 2360 integer (2315 binary)
Root relaxation presolved: 2351 rows, 85932 columns, 255210 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24659    4.8955058e+01   0.000000e+00   1.096590e+04      5s
   41743    4.9000000e+01   0.000000e+00   0.000000e+00      9s
   41743    4.9000000e+01   0.000000e+00   0.000000e+00      9s
   41743    4.9000000e+01   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 4.900000e+01, 41743 iterations, 7.81 seconds (6.77 work units)
Total elapsed time = 19.05s (DegenMoves)
Total elapsed time = 20.23s (DegenMoves)

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

     0     0   49.00000    0  481          -   49.00000      -     -   20s
H    0     0                       9.0000000   49.00000   444%     -   20s
H    0     0                      13.0000000   49.00000   277%     -   20s
     0     0   49.00000    0  770   13.00000   49.00000   277%     -   31s
     0     0   49.00000    0  761   13.00000   49.00000   277%     -   33s
     0     0   49.00000    0  763   13.00000   49.00000   277%     -   50s

Cutting planes:
  Gomory: 5
  Lift-and-project: 30
  Cover: 14
  Clique: 13
  MIR: 112
  StrongCG: 1
  Zero half: 15
  RLT: 54
  BQP: 1

Explored 1 nodes (69465 simplex iterations) in 50.04 seconds (48.36 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 13 9 

Time limit reached
Best objective 1.300000000000e+01, best bound 4.900000000000e+01, gap 276.9231%

Wrote result file './lp_solutions/grafo7582.45.sol'

