Trace number 351216

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds, and are wall clock time (not CPU time).

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerObjective functionCPU timeWall clock time
glpPB 0.2? (exit code) 7.16591 7.17187

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-reduced-mps-v2-20-10-afiro.opb
MD5SUMd412dc68829850bad6555fa34c6ad801
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark-65
Best CPU time to get the best result obtained on this benchmark1800.26
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -65
Optimality of the best value was proved NO
Number of variables960
Total number of constraints27
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints27
Minimum length of a constraint30
Maximum length of a constraint270
Number of terms in the objective function 150
Biggest coefficient in the objective function 222156
Number of bits for the biggest coefficient in the objective function 18
Sum of the numbers in the objective function 524394
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 262125
Number of bits of the biggest number in a constraint 18
Biggest sum of numbers in a constraint 524468
Number of bits of the biggest sum of numbers20
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data (download as text)

0.00/0.00	c glpPB 0.2 (July 2006)
0.00/0.00	c An Application of GLPK 4.10 for PB Constraints
0.00/0.00	c Done @ University of Michigan, Ann Arbor, MI
0.00/0.00	c  by Hossein Sheini
7.09/7.17	c starting to Solve
7.09/7.17	Assertion failed: x >= lb; file glpmip2.c; line 230

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/351216-1176589551/instance-351216-1176589551.opb is already a linear file

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node15/watcher-351216-1176589551 -o ROOT/results/node15/solver-351216-1176589551 -C 1800 -W 3600 -M 1800 --output-limit 1,15 glpPBv3 /tmp/evaluation/351216-1176589551/instance-351216-1176589551.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 3600 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.85 0.97 0.99 2/77 5784
/proc/meminfo: memFree=1802936/2055920 swapFree=4169120/4192956
[pid=5784] ppid=5782 vsize=2648 CPUtime=0
/proc/5784/stat : 5784 (glpPBv3) R 5782 5784 5710 0 -1 0 262 0 0 0 0 0 0 0 18 0 1 0 106872749 2711552 232 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 134530903 0 0 4096 0 0 0 0 17 1 0 0
/proc/5784/statm: 662 234 199 40 0 77 0

[startup+0.0181169 s]
/proc/loadavg: 0.85 0.97 0.99 2/77 5784
/proc/meminfo: memFree=1802936/2055920 swapFree=4169120/4192956
[pid=5784] ppid=5782 vsize=2916 CPUtime=0.01
/proc/5784/stat : 5784 (glpPBv3) R 5782 5784 5710 0 -1 0 377 0 0 0 1 0 0 0 18 0 1 0 106872749 2985984 346 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/5784/statm: 729 346 221 40 0 144 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2916

[startup+0.101123 s]
/proc/loadavg: 0.85 0.97 0.99 2/77 5784
/proc/meminfo: memFree=1802936/2055920 swapFree=4169120/4192956
[pid=5784] ppid=5782 vsize=3316 CPUtime=0.09
/proc/5784/stat : 5784 (glpPBv3) R 5782 5784 5710 0 -1 0 462 0 0 0 9 0 0 0 18 0 1 0 106872749 3395584 431 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 134555518 0 0 4096 0 0 0 0 17 1 0 0
/proc/5784/statm: 829 431 227 40 0 244 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3316

[startup+0.30114 s]
/proc/loadavg: 0.85 0.97 0.99 2/77 5784
/proc/meminfo: memFree=1802936/2055920 swapFree=4169120/4192956
[pid=5784] ppid=5782 vsize=3316 CPUtime=0.29
/proc/5784/stat : 5784 (glpPBv3) R 5782 5784 5710 0 -1 0 462 0 0 0 29 0 0 0 20 0 1 0 106872749 3395584 431 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/5784/statm: 829 431 227 40 0 244 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3316

[startup+0.701178 s]
/proc/loadavg: 0.85 0.97 0.99 2/77 5784
/proc/meminfo: memFree=1802936/2055920 swapFree=4169120/4192956
[pid=5784] ppid=5782 vsize=3316 CPUtime=0.69
/proc/5784/stat : 5784 (glpPBv3) R 5782 5784 5710 0 -1 0 475 0 0 0 69 0 0 0 23 0 1 0 106872749 3395584 444 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 134540004 0 0 4096 0 0 0 0 17 1 0 0
/proc/5784/statm: 829 444 227 40 0 244 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3316

[startup+1.50125 s]
/proc/loadavg: 0.87 0.97 0.99 2/78 5785
/proc/meminfo: memFree=1801968/2055920 swapFree=4169120/4192956
[pid=5784] ppid=5782 vsize=3360 CPUtime=1.49
/proc/5784/stat : 5784 (glpPBv3) R 5782 5784 5710 0 -1 0 494 0 0 0 149 0 0 0 25 0 1 0 106872749 3440640 463 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 134629216 0 0 4096 0 0 0 0 17 1 0 0
/proc/5784/statm: 840 463 227 40 0 255 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3360

[startup+3.1014 s]
/proc/loadavg: 0.87 0.97 0.99 2/78 5785
/proc/meminfo: memFree=1801776/2055920 swapFree=4169120/4192956
[pid=5784] ppid=5782 vsize=3484 CPUtime=3.09
/proc/5784/stat : 5784 (glpPBv3) R 5782 5784 5710 0 -1 0 523 0 0 0 308 1 0 0 25 0 1 0 106872749 3567616 492 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 134576416 0 0 4096 0 0 0 0 17 1 0 0
/proc/5784/statm: 871 492 227 40 0 286 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 3484

[startup+6.30169 s]
/proc/loadavg: 0.88 0.97 0.99 2/78 5785
/proc/meminfo: memFree=1801456/2055920 swapFree=4169120/4192956
[pid=5784] ppid=5782 vsize=3632 CPUtime=6.29
/proc/5784/stat : 5784 (glpPBv3) R 5782 5784 5710 0 -1 0 560 0 0 0 627 2 0 0 25 0 1 0 106872749 3719168 529 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 134639273 0 0 4096 0 0 0 0 17 1 0 0
/proc/5784/statm: 908 529 227 40 0 323 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 3632

Solver just ended. Dumping a history of the last processes samples

[startup+6.70173 s]
/proc/loadavg: 0.88 0.97 0.99 2/78 5785
/proc/meminfo: memFree=1801456/2055920 swapFree=4169120/4192956
[pid=5784] ppid=5782 vsize=3632 CPUtime=6.69
/proc/5784/stat : 5784 (glpPBv3) R 5782 5784 5710 0 -1 0 560 0 0 0 667 2 0 0 25 0 1 0 106872749 3719168 529 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 134542186 0 0 4096 0 0 0 0 17 1 0 0
/proc/5784/statm: 908 529 227 40 0 323 0
Current children cumulated CPU time (s) 6.69
Current children cumulated vsize (KiB) 3632

[startup+7.10177 s]
/proc/loadavg: 0.88 0.97 0.99 2/78 5785
/proc/meminfo: memFree=1801456/2055920 swapFree=4169120/4192956
[pid=5784] ppid=5782 vsize=3632 CPUtime=7.09
/proc/5784/stat : 5784 (glpPBv3) R 5782 5784 5710 0 -1 0 560 0 0 0 707 2 0 0 25 0 1 0 106872749 3719168 529 18446744073709551615 134512640 134678228 4294956704 18446744073709551615 134569193 0 0 4096 0 0 0 0 17 1 0 0
/proc/5784/statm: 908 529 227 40 0 323 0
Current children cumulated CPU time (s) 7.09
Current children cumulated vsize (KiB) 3632

Child status: 1
Real time (s): 7.17187
CPU time (s): 7.16591
CPU user time (s): 7.14091
CPU system time (s): 0.024996
CPU usage (%): 99.917
Max. virtual memory (cumulated for all children) (KiB): 3632

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 7.14091
system time used= 0.024996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 564
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 13
involuntary context switches= 149

runsolver used 0.013997 second user time and 0.018997 second system time

The end

Launcher Data (download as text)

Begin job on node15 on Sat Apr 14 22:25:51 UTC 2007

IDJOB= 351216
IDBENCH= 1700
IDSOLVER= 166
FILE ID= node15/351216-1176589551

PBS_JOBID= 4556800

Free space on /tmp= 66555 MiB

SOLVER NAME= glpPB 0.2
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-reduced-mps-v2-20-10-afiro.opb
COMMAND LINE= glpPBv3 /tmp/evaluation/351216-1176589551/instance-351216-1176589551.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node15/convwatcher-351216-1176589551 -o ROOT/results/node15/conversion-351216-1176589551 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/351216-1176589551/instance-351216-1176589551.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node15/watcher-351216-1176589551 -o ROOT/results/node15/solver-351216-1176589551 -C 1800 -W 3600 -M 1800 --output-limit 1,15  glpPBv3 /tmp/evaluation/351216-1176589551/instance-351216-1176589551.opb

META MD5SUM SOLVER= 9ebec3e8d890fdeefad01654ad9b68b7
MD5SUM BENCH=  d412dc68829850bad6555fa34c6ad801

RANDOM SEED= 24672144

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node15.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.227
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.227
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1803408 kB
Buffers:         44928 kB
Cached:         133592 kB
SwapCached:       2904 kB
Active:         118404 kB
Inactive:        83704 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1803408 kB
SwapTotal:     4192956 kB
SwapFree:      4169120 kB
Dirty:            2524 kB
Writeback:           0 kB
Mapped:          29712 kB
Slab:            35872 kB
Committed_AS:  4416276 kB
PageTables:       1868 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66555 MiB

End job on node15 on Sat Apr 14 22:25:59 UTC 2007