--- Job bk4x3 Start 07/17/08 16:02:26 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 --- bk4x3.gms(106) 2 Mb --- GDXin=/home/stefan/work/gams/models/LINlib/bk4x3.gdx --- bk4x3.gms(148) 3 Mb --- Starting execution: elapsed 0:00:00.004 --- bk4x3.gms(123) 4 Mb --- Generating MIP model m --- bk4x3.gms(124) 4 Mb --- 20 rows 25 columns 73 non-zeroes --- 12 discrete-columns --- Executing Cbc: elapsed 0:00:00.006 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: 24 columns and 19 rows. 12 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 321.667 - 0.00 seconds processed model has 19 rows, 24 columns (12 integer) and 48 elements Pass 1: suminf. 0.58333 obj. 324.167 iterations 6 Solution found of 360 Before mini branch and bound, 8 integers at bound fixed and 8 continuous Full problem 19 rows 24 columns, reduced to 4 rows 5 columns Mini branch and bound did not improve solution (-0.00 seconds) After -0.00 seconds - Feasibility pump exiting with objective of 2 - took -0.00 seconds Integer solution of 360 found by feasibility pump after 0 iterations and 0 nodes (-0.00 seconds) Full problem 19 rows 24 columns, reduced to 0 rows 0 columns 6 added rows had average density of 7 At root node, 6 cuts changed objective from 321.667 to 350 in 6 passes Cut generator 0 (Probing) - 8 row cuts (1 active), 2 column cuts in 0.004 seconds - new frequency is 1 Cut generator 1 (Gomory) - 16 row cuts (1 active), 0 column cuts in -0.000 seconds - new frequency is 1 Cut generator 2 (Knapsack) - 12 row cuts (1 active), 0 column cuts in 0.004 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) - 5 row cuts (1 active), 0 column cuts in -0.000 seconds - new frequency is -100 Cut generator 5 (FlowCover) - 1 row cuts (0 active), 0 column cuts in -0.000 seconds - new frequency is -100 Cut generator 6 (TwoMirCuts) - 16 row cuts (2 active), 0 column cuts in -0.000 seconds - new frequency is -100 Integer solution of 350 found after 19 iterations and 0 nodes (0.01 seconds) Thread 0 used 0 times, waiting to start 0, 0 cpu time, 0 locks, 0 locked, 0 waiting for locks Thread 1 used 0 times, waiting to start 3.1986e-05, 0 cpu time, 0 locks, 0 locked, 0 waiting for locks Main thread 0 waiting for threads, 1 locks, 2.86405e-06 locked, 2.92435e-06 waiting for locks Search completed - best objective 350, took 19 iterations and 0 nodes (0.01 seconds) Maximum depth 0, 1 variables fixed on reduced cost Cuts at root node changed objective from 321.667 to 350 Probing was tried 18 times and created 24 cuts of which 3 were active after adding rounds of cuts (0.012 seconds) Gomory was tried 15 times and created 48 cuts of which 3 were active after adding rounds of cuts (-0.000 seconds) Knapsack was tried 18 times and created 36 cuts of which 3 were active after adding rounds of cuts (0.012 seconds) Clique was tried 18 times and created 0 cuts of which 0 were active after adding rounds of cuts (-0.000 seconds) MixedIntegerRounding2 was tried 18 times and created 15 cuts of which 3 were active after adding rounds of cuts (-0.000 seconds) FlowCover was tried 18 times and created 3 cuts of which 0 were active after adding rounds of cuts (-0.000 seconds) TwoMirCuts was tried 15 times and created 48 cuts of which 6 were active after adding rounds of cuts (-0.000 seconds) Result - Finished objective 350 after 0 nodes and 19 iterations - took 0.01 seconds (total time 0.01) Total time 0.01 Solved to optimality. wallclocktime: 0.0165569 used seconds: 0.01 MIP solution: 350 (0 nodes, 0.01 seconds) Best possible: 350 Absolute gap: 0 (absolute tolerance optca: 0) Relative gap: 0 (relative tolerance optcr: 0) --- Restarting execution --- bk4x3.gms(124) 0 Mb --- Reading solution for model m *** Status: Normal completion --- Job bk4x3.gms Stop 07/17/08 16:02:26 elapsed 0:00:00.044