
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 04:29:09 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3504.35.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/grafo3504.35.lp
Reading time = 0.26 seconds
: 161945 rows, 1944 columns, 487579 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 161945 rows, 1944 columns and 487579 nonzeros
Model fingerprint: 0xd0ccc801
Variable types: 42 continuous, 1902 integer (1902 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 75799 rows and 32 columns
Presolve time: 1.04s
Presolved: 86146 rows, 1912 columns, 260555 nonzeros
Variable types: 0 continuous, 1912 integer (1870 binary)
Root relaxation presolved: 1910 rows, 88056 columns, 262467 nonzeros


Root relaxation: objective 4.800000e+01, 2441 iterations, 0.95 seconds (1.11 work units)
Total elapsed time = 9.68s (DegenMoves)
Total elapsed time = 13.51s (DegenMoves)
Total elapsed time = 15.50s (DegenMoves)

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

     0     0   48.00000    0  393          -   48.00000      -     -   15s
H    0     0                       7.0000000   48.00000   586%     -   17s
     0     0   48.00000    0  705    7.00000   48.00000   586%     -   24s
H    0     0                       9.0000000   48.00000   433%     -   24s
     0     0   48.00000    0  683    9.00000   48.00000   433%     -   25s
     0     0   48.00000    0  740    9.00000   48.00000   433%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 30
  Cover: 14
  Clique: 27
  MIR: 88
  StrongCG: 1
  Zero half: 58
  RLT: 49
  BQP: 5

Explored 1 nodes (35665 simplex iterations) in 50.03 seconds (56.41 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 7 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.800000000000e+01, gap 433.3333%

Wrote result file './lp_solutions/grafo3504.35.sol'

