--- Job gr4x6 Start 07/17/08 19:30:32 GAMS Rev 227 Copyright (C) 1987-2008 GAMS Development. All rights reserved Licensee: Stefan Vigerske G071106/0001CB-LNX Humboldt University Berlin, Numerical Mathematics DC5918 --- Starting compilation --- gr4x6.gms(106) 2 Mb --- GDXin=/home/stefan/work/gams/models/LINlib/gr4x6.gdx --- gr4x6.gms(148) 3 Mb --- Starting execution: elapsed 0:00:00.004 --- gr4x6.gms(123) 4 Mb --- Generating MIP model m --- gr4x6.gms(124) 4 Mb --- 35 rows 49 columns 145 non-zeroes --- 24 discrete-columns --- Executing Cbc: elapsed 0:00:00.007 GAMS/Cbc 2.1 LP/MIP Solver written by J. Forrest Reading parameter(s) from "/home/stefan/work/gams/benchmarks/LINLib.MIP/cbc.op2" >> threads 2 Finished reading from "/home/stefan/work/gams/benchmarks/LINLib.MIP/cbc.op2" Problem statistics: 48 columns and 34 rows. 24 variables have integrality restrictions. Calling CBC main solution routine... Coin Cbc and Clp Solver version 2.10.00, build Jul 15 2008 command line - GAMS/CBC -threads 2 -solve -quit threads was changed from 0 to 2 Continuous objective value is 185.55 - -0.00 seconds processed model has 34 rows, 48 columns (24 integer) and 96 elements Pass 1: suminf. 1.50000 obj. 189.217 iterations 8 Solution found of 229.05 Before mini branch and bound, 19 integers at bound fixed and 19 continuous Full problem 34 rows 48 columns, reduced to 0 rows 0 columns Mini branch and bound did not improve solution (0.00 seconds) After 0.00 seconds - Feasibility pump exiting with objective of 4 - took 0.00 seconds Integer solution of 229.05 found by feasibility pump after 0 iterations and 0 nodes (0.00 seconds) Full problem 34 rows 48 columns, reduced to 0 rows 0 columns 13 added rows had average density of 20.5385 At root node, 13 cuts changed objective from 185.55 to 202.35 in 5 passes Cut generator 0 (Probing) - 0 row cuts (0 active), 0 column cuts in 0.004 seconds - new frequency is 10 Cut generator 1 (Gomory) - 23 row cuts (1 active), 0 column cuts in 0.000 seconds - new frequency is 1 Cut generator 2 (Knapsack) - 14 row cuts (2 active), 0 column cuts in 0.000 seconds - new frequency is 1 Cut generator 3 (Clique) - 0 row cuts (0 active), 0 column cuts in 0.000 seconds - new frequency is -100 Cut generator 4 (MixedIntegerRounding2) - 11 row cuts (5 active), 0 column cuts in 0.000 seconds - new frequency is 1 Cut generator 5 (FlowCover) - 4 row cuts (0 active), 0 column cuts in 0.000 seconds - new frequency is -100 Cut generator 6 (TwoMirCuts) - 26 row cuts (5 active), 0 column cuts in 0.004 seconds - new frequency is -100 Integer solution of 202.35 found after 42 iterations and 0 nodes (0.01 seconds) Thread 0 used 0 times, waiting to start 7.87918e-05, 0 cpu time, 0 locks, 0 locked, 0 waiting for locks Thread 1 used 0 times, waiting to start 0.000164973, 0 cpu time, 0 locks, 0 locked, 0 waiting for locks Main thread 0 waiting for threads, 1 locks, 3.56208e-06 locked, 1.84216e-06 waiting for locks Search completed - best objective 202.35, took 42 iterations and 0 nodes (0.02 seconds) Maximum depth 0, 0 variables fixed on reduced cost Cuts at root node changed objective from 185.55 to 202.35 Probing was tried 15 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.012 seconds) Gomory was tried 15 times and created 69 cuts of which 3 were active after adding rounds of cuts (0.000 seconds) Knapsack was tried 15 times and created 42 cuts of which 6 were active after adding rounds of cuts (0.000 seconds) Clique was tried 15 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds) MixedIntegerRounding2 was tried 15 times and created 33 cuts of which 15 were active after adding rounds of cuts (0.000 seconds) FlowCover was tried 15 times and created 12 cuts of which 0 were active after adding rounds of cuts (0.000 seconds) TwoMirCuts was tried 15 times and created 78 cuts of which 15 were active after adding rounds of cuts (0.012 seconds) Result - Finished objective 202.35 after 0 nodes and 42 iterations - took 0.02 seconds (total time 0.02) Total time 0.02 Solved to optimality. wallclocktime: 0.0225379 used seconds: 0.02 MIP solution: 202.35 (0 nodes, 0.02 seconds) Best possible: 202.35 Absolute gap: 0 (absolute tolerance optca: 0) Relative gap: 0 (relative tolerance optcr: 0) --- Restarting execution --- gr4x6.gms(124) 0 Mb --- Reading solution for model m *** Status: Normal completion --- Job gr4x6.gms Stop 07/17/08 19:30:33 elapsed 0:00:00.051