
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 03:57:46 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3329.39.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/grafo3329.39.lp
Reading time = 0.18 seconds
: 113612 rows, 2085 columns, 342562 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 113612 rows, 2085 columns and 342562 nonzeros
Model fingerprint: 0x09e913c9
Variable types: 44 continuous, 2041 integer (2041 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 45505 rows and 47 columns
Presolve time: 0.74s
Presolved: 68107 rows, 2038 columns, 206497 nonzeros
Variable types: 0 continuous, 2038 integer (1994 binary)
Root relaxation presolved: 2032 rows, 70139 columns, 208535 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24852    4.1786885e+01   0.000000e+00   1.325844e+05      5s
   52822    4.1762076e+01   0.000000e+00   2.422685e+03     10s
   62400    4.2000000e+01   0.000000e+00   0.000000e+00     12s
   62400    4.2000000e+01   0.000000e+00   0.000000e+00     12s
   62400    4.2000000e+01   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 4.200000e+01, 62400 iterations, 10.86 seconds (7.90 work units)
Total elapsed time = 20.31s (DegenMoves)

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

     0     0   42.00000    0  531          -   42.00000      -     -   22s
H    0     0                       4.0000000   42.00000   950%     -   25s
     0     0   42.00000    0  733    4.00000   42.00000   950%     -   33s
H    0     0                      10.0000000   42.00000   320%     -   34s
     0     0   42.00000    0  673   10.00000   42.00000   320%     -   35s
     0     0   42.00000    0  832   10.00000   42.00000   320%     -   50s

Cutting planes:
  Gomory: 5
  Lift-and-project: 36
  Cover: 9
  Clique: 22
  MIR: 90
  Zero half: 37
  RLT: 45
  BQP: 5

Explored 1 nodes (87710 simplex iterations) in 50.07 seconds (44.38 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 4 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.200000000000e+01, gap 320.0000%

Wrote result file './lp_solutions/grafo3329.39.sol'

