
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 09:08:24 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7041.44.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/grafo7041.44.lp
Reading time = 0.17 seconds
: 104656 rows, 2308 columns, 315794 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 104656 rows, 2308 columns and 315794 nonzeros
Model fingerprint: 0x8789705b
Variable types: 46 continuous, 2262 integer (2262 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 27541 rows and 30 columns
Presolve time: 0.75s
Presolved: 77115 rows, 2278 columns, 233546 nonzeros
Variable types: 0 continuous, 2278 integer (2232 binary)
Root relaxation presolved: 2278 rows, 79393 columns, 235824 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   23345    3.9750201e+01   0.000000e+00   8.896097e+04      5s
   36968    4.0000000e+01   0.000000e+00   0.000000e+00      8s
   36968    4.0000000e+01   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 4.000000e+01, 36968 iterations, 6.94 seconds (6.14 work units)
Total elapsed time = 16.01s (DegenMoves)

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

     0     0   40.00000    0  450          -   40.00000      -     -   17s
H    0     0                       9.0000000   40.00000   344%     -   17s
H    0     0                      11.0000000   40.00000   264%     -   17s
     0     0   40.00000    0  756   11.00000   40.00000   264%     -   28s
     0     0   40.00000    0  767   11.00000   40.00000   264%     -   33s
     0     0   40.00000    0  796   11.00000   40.00000   264%     -   50s

Cutting planes:
  Gomory: 4
  Lift-and-project: 26
  Cover: 6
  Clique: 15
  MIR: 107
  Zero half: 58
  RLT: 52
  BQP: 4

Explored 1 nodes (68344 simplex iterations) in 50.03 seconds (49.39 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 9 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.000000000000e+01, gap 263.6364%

Wrote result file './lp_solutions/grafo7041.44.sol'

