
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 18:43:37 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1985.33.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/grafo1985.33.lp
Reading time = 0.14 seconds
: 85967 rows, 1522 columns, 259068 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 85967 rows, 1522 columns and 259068 nonzeros
Model fingerprint: 0x42b35df5
Variable types: 38 continuous, 1484 integer (1484 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 32391 rows and 27 columns
Presolve time: 0.61s
Presolved: 53576 rows, 1495 columns, 162178 nonzeros
Variable types: 0 continuous, 1495 integer (1457 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 1495 rows, 55071 columns, 163673 nonzeros


Root relaxation: objective 3.800000e+01, 1651 iterations, 0.44 seconds (0.50 work units)

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

     0     0   38.00000    0  366    4.00000   38.00000   850%     -    5s
H    0     0                       6.0000000   38.00000   533%     -    5s
H    0     0                       9.0000000   38.00000   322%     -   12s
     0     0   38.00000    0  648    9.00000   38.00000   322%     -   12s
     0     0   38.00000    0  630    9.00000   38.00000   322%     -   12s
H    0     0                      10.0000000   38.00000   280%     -   36s
     0     0   38.00000    0  525   10.00000   38.00000   280%     -   36s
H    0     0                      11.0000000   38.00000   245%     -   38s
     0     0   38.00000    0  509   11.00000   38.00000   245%     -   38s
     0     0   38.00000    0  636   11.00000   38.00000   245%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 34
  Clique: 21
  MIR: 121
  GUB cover: 3
  Zero half: 58
  Mod-K: 1
  RLT: 68
  BQP: 2

Explored 1 nodes (39283 simplex iterations) in 50.06 seconds (47.25 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 11 10 9 ... 1

Time limit reached
Best objective 1.100000000000e+01, best bound 3.800000000000e+01, gap 245.4545%

Wrote result file './lp_solutions/grafo1985.33.sol'

