
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 00:58:29 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo9997.40.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/grafo9997.40.lp
Reading time = 0.18 seconds
: 85228 rows, 1911 columns, 257086 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 85228 rows, 1911 columns and 257086 nonzeros
Model fingerprint: 0x23e2c47b
Variable types: 41 continuous, 1870 integer (1870 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 1.0000000
Presolve removed 24248 rows and 37 columns
Presolve time: 0.76s
Presolved: 60980 rows, 1874 columns, 184723 nonzeros
Variable types: 0 continuous, 1874 integer (1833 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 1874 rows, 62854 columns, 186597 nonzeros


Root relaxation: objective 3.400000e+01, 2597 iterations, 1.07 seconds (1.07 work units)
Total elapsed time = 10.83s (DegenMoves)

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

     0     0   34.00000    0  633    7.00000   34.00000   386%     -   11s
H    0     0                       9.0000000   34.00000   278%     -   16s
     0     0   34.00000    0  937    9.00000   34.00000   278%     -   31s
H    0     0                      10.0000000   34.00000   240%     -   31s
     0     0   34.00000    0  929   10.00000   34.00000   240%     -   33s
     0     0   34.00000    0  898   10.00000   34.00000   240%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 2
  Clique: 26
  MIR: 80
  Zero half: 43
  RLT: 55
  BQP: 3

Explored 1 nodes (28081 simplex iterations) in 50.08 seconds (34.44 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 10 9 7 1 

Time limit reached
Best objective 1.000000000000e+01, best bound 3.400000000000e+01, gap 240.0000%

Wrote result file './lp_solutions/grafo9997.40.sol'

