
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 08:20:09 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10494.40.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/grafo10494.40.lp
Reading time = 0.14 seconds
: 84719 rows, 2058 columns, 255824 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 84719 rows, 2058 columns and 255824 nonzeros
Model fingerprint: 0x188d0b6c
Variable types: 43 continuous, 2015 integer (2015 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 6.0000000
Presolve removed 24207 rows and 26 columns
Presolve time: 0.62s
Presolved: 60512 rows, 2032 columns, 183722 nonzeros
Variable types: 0 continuous, 2032 integer (1989 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2032 rows, 62544 columns, 185754 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   26750    4.1920068e+01   0.000000e+00   4.971404e+03      5s
   47389    4.2000000e+01   0.000000e+00   0.000000e+00      9s
   47389    4.2000000e+01   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 4.200000e+01, 47389 iterations, 8.58 seconds (7.62 work units)
Total elapsed time = 15.69s (DegenMoves)

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

     0     0   42.00000    0  346    7.00000   42.00000   500%     -   16s
H    0     0                       9.0000000   42.00000   367%     -   16s
H    0     0                      11.0000000   42.00000   282%     -   16s
H    0     0                      14.0000000   42.00000   200%     -   20s
     0     0   42.00000    0  509   14.00000   42.00000   200%     -   20s
H    0     0                      15.0000000   42.00000   180%     -   22s
     0     0   42.00000    0  521   15.00000   42.00000   180%     -   22s
H    0     0                      16.0000000   42.00000   162%     -   42s
     0     0   42.00000    0  461   16.00000   42.00000   162%     -   42s
     0     0   42.00000    0  506   16.00000   42.00000   162%     -   44s
     0     0          -    0        16.00000   42.00000   162%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 28
  Clique: 15
  MIR: 134
  StrongCG: 2
  GUB cover: 6
  Zero half: 38
  RLT: 60
  BQP: 1

Explored 1 nodes (81833 simplex iterations) in 50.06 seconds (44.90 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 16 15 14 ... 6

Time limit reached
Best objective 1.600000000000e+01, best bound 4.200000000000e+01, gap 162.5000%

Wrote result file './lp_solutions/grafo10494.40.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 00:18:52 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10494.40.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/grafo10494.40.lp
Reading time = 0.21 seconds
: 84719 rows, 2058 columns, 255824 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 84719 rows, 2058 columns and 255824 nonzeros
Model fingerprint: 0x188d0b6c
Variable types: 43 continuous, 2015 integer (2015 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 6.0000000
Presolve removed 24207 rows and 26 columns
Presolve time: 0.98s
Presolved: 60512 rows, 2032 columns, 183722 nonzeros
Variable types: 0 continuous, 2032 integer (1989 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2032 rows, 62544 columns, 185754 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17410    4.1929975e+01   0.000000e+00   2.961945e+04      5s
   34707    4.1916603e+01   0.000000e+00   1.627683e+03     10s
   47389    4.2000000e+01   0.000000e+00   0.000000e+00     14s
   47389    4.2000000e+01   0.000000e+00   0.000000e+00     14s

Root relaxation: objective 4.200000e+01, 47389 iterations, 12.78 seconds (7.62 work units)
Total elapsed time = 23.00s (DegenMoves)

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

     0     0   42.00000    0  346    7.00000   42.00000   500%     -   23s
H    0     0                       9.0000000   42.00000   367%     -   24s
H    0     0                      11.0000000   42.00000   282%     -   24s
H    0     0                      14.0000000   42.00000   200%     -   32s
     0     0   42.00000    0  509   14.00000   42.00000   200%     -   32s
H    0     0                      15.0000000   42.00000   180%     -   34s
     0     0   42.00000    0  521   15.00000   42.00000   180%     -   35s
     0     0   42.00000    0  529   15.00000   42.00000   180%     -   50s

Cutting planes:
  Gomory: 7
  Lift-and-project: 45
  Cover: 15
  Clique: 5
  MIR: 139
  StrongCG: 1
  GUB cover: 3
  Zero half: 91
  RLT: 58
  BQP: 1

Explored 1 nodes (66649 simplex iterations) in 50.10 seconds (27.54 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 15 14 11 ... 6

Time limit reached
Best objective 1.500000000000e+01, best bound 4.200000000000e+01, gap 180.0000%

Wrote result file './lp_solutions/grafo10494.40.sol'

