
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 05:59:56 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3419.44.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/grafo3419.44.lp
Reading time = 0.11 seconds
: 57414 rows, 1997 columns, 173562 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 57414 rows, 1997 columns and 173562 nonzeros
Model fingerprint: 0x8e085e5a
Variable types: 41 continuous, 1956 integer (1956 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 5894 rows and 38 columns
Presolve time: 0.50s
Presolved: 51520 rows, 1959 columns, 156238 nonzeros
Variable types: 0 continuous, 1959 integer (1918 binary)
Root relaxation presolved: 27616 rows, 25863 columns, 108430 nonzeros


Root relaxation: objective 3.400000e+01, 3534 iterations, 2.74 seconds (1.52 work units)
Total elapsed time = 6.10s (DegenMoves)

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

     0     0   34.00000    0  489          -   34.00000      -     -    8s
H    0     0                       4.0000000   34.00000   750%     -    8s
H    0     0                       5.0000000   34.00000   580%     -   11s
H    0     0                       8.0000000   34.00000   325%     -   20s
     0     0   34.00000    0  733    8.00000   34.00000   325%     -   20s
     0     0   34.00000    0  716    8.00000   34.00000   325%     -   23s
     0     0   34.00000    0  436    8.00000   34.00000   325%     -   45s
H    0     0                      10.0000000   34.00000   240%     -   45s
H    0     0                      11.0000000   34.00000   209%     -   45s
H    0     0                      12.0000000   34.00000   183%     -   45s
     0     0   34.00000    0  477   12.00000   34.00000   183%     -   47s
     0     0          -    0        12.00000   34.00000   183%     -   50s

Cutting planes:
  Cover: 24
  Clique: 7
  MIR: 151
  GUB cover: 7
  Zero half: 44
  RLT: 39
  PSD: 2

Explored 1 nodes (36263 simplex iterations) in 50.09 seconds (29.51 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 12 11 10 ... 4

Time limit reached
Best objective 1.200000000000e+01, best bound 3.400000000000e+01, gap 183.3333%

Wrote result file './lp_solutions/grafo3419.44.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 06:10:51 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3419.44.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/grafo3419.44.lp
Reading time = 0.09 seconds
: 57414 rows, 1997 columns, 173562 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 57414 rows, 1997 columns and 173562 nonzeros
Model fingerprint: 0x8e085e5a
Variable types: 41 continuous, 1956 integer (1956 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 5894 rows and 38 columns
Presolve time: 0.38s
Presolved: 51520 rows, 1959 columns, 156238 nonzeros
Variable types: 0 continuous, 1959 integer (1918 binary)
Root relaxation presolved: 27616 rows, 25863 columns, 108430 nonzeros


Root relaxation: objective 3.400000e+01, 3534 iterations, 1.67 seconds (1.52 work units)
Total elapsed time = 5.36s (DegenMoves)

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

     0     0   34.00000    0  489          -   34.00000      -     -    5s
H    0     0                       4.0000000   34.00000   750%     -    5s
H    0     0                       5.0000000   34.00000   580%     -    7s
H    0     0                       8.0000000   34.00000   325%     -   13s
     0     0   34.00000    0  733    8.00000   34.00000   325%     -   13s
     0     0   34.00000    0  716    8.00000   34.00000   325%     -   14s
     0     0   34.00000    0  436    8.00000   34.00000   325%     -   30s
H    0     0                      10.0000000   34.00000   240%     -   30s
H    0     0                      11.0000000   34.00000   209%     -   30s
H    0     0                      12.0000000   34.00000   183%     -   30s
     0     0   34.00000    0  477   12.00000   34.00000   183%     -   31s
     0     0   34.00000    0  373   12.00000   34.00000   183%     -   46s
H    0     0                      16.0000000   34.00000   112%     -   46s
     0     0   34.00000    0  391   16.00000   34.00000   112%     -   47s
     0     0   34.00000    0  574   16.00000   34.00000   112%     -   50s

Cutting planes:
  Cover: 32
  Clique: 5
  MIR: 148
  StrongCG: 3
  GUB cover: 4
  Zero half: 35
  RLT: 52
  PSD: 2

Explored 1 nodes (59415 simplex iterations) in 50.06 seconds (48.06 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 16 12 11 ... 4

Time limit reached
Best objective 1.600000000000e+01, best bound 3.400000000000e+01, gap 112.5000%

Wrote result file './lp_solutions/grafo3419.44.sol'

