
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 05:47:46 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7706.40.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/grafo7706.40.lp
Reading time = 0.15 seconds
: 95478 rows, 2014 columns, 287997 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 95478 rows, 2014 columns and 287997 nonzeros
Model fingerprint: 0xe3d6db17
Variable types: 41 continuous, 1973 integer (1973 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 33756 rows and 27 columns
Presolve time: 0.71s
Presolved: 61722 rows, 1987 columns, 187150 nonzeros
Variable types: 0 continuous, 1987 integer (1946 binary)
Root relaxation presolved: 1986 rows, 63708 columns, 189137 nonzeros


Root relaxation: objective 4.500000e+01, 3261 iterations, 1.09 seconds (1.31 work units)
Total elapsed time = 11.08s (DegenMoves)

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

     0     0   45.00000    0  710          -   45.00000      -     -   20s
H    0     0                       6.0000000   45.00000   650%     -   24s
     0     0   45.00000    0  845    6.00000   45.00000   650%     -   34s
H    0     0                       8.0000000   45.00000   462%     -   35s
     0     0   45.00000    0  807    8.00000   45.00000   462%     -   35s
     0     0   45.00000    0  926    8.00000   45.00000   462%     -   50s

Cutting planes:
  Gomory: 3
  Cover: 12
  Clique: 12
  MIR: 127
  StrongCG: 1
  Zero half: 123
  RLT: 72
  BQP: 3
  PSD: 1

Explored 1 nodes (39774 simplex iterations) in 50.08 seconds (52.21 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 8 6 

Time limit reached
Best objective 8.000000000000e+00, best bound 4.500000000000e+01, gap 462.5000%

Wrote result file './lp_solutions/grafo7706.40.sol'

