Trace number 458539

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
PBS4_v2 2007-03-23UNSAT 22.6926 22.7071

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-pilot87.opb
MD5SUMe59c2905e997a0635cce57f2d16b8705
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark3.20751
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables113861
Total number of constraints3583
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 constraints3583
Minimum length of a constraint10
Maximum length of a constraint8647
Number of terms in the objective function 11587
Biggest coefficient in the objective function 12292
Number of bits for the biggest coefficient in the objective function 14
Sum of the numbers in the objective function 519074
Number of bits of the sum of numbers in the objective function 19
Biggest number in a constraint 262145
Number of bits of the biggest number in a constraint 19
Biggest sum of numbers in a constraint 531294
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 PBS v4 by Bashar Al-Rawi & Fadi Aloul
0.00/0.00	c Solving /tmp/evaluation/458539-1178634446/instance-458539-1178634446.opb ......
22.58/22.67	c done parsing opb.
22.58/22.67	s UNSATISFIABLE
22.58/22.67	c Total Run Time					0.169974

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/458539-1178634446/instance-458539-1178634446.opb is already a linear file

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node46/watcher-458539-1178634446 -o ROOT/results/node46/solver-458539-1178634446 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/458539-1178634446/instance-458539-1178634446.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: 1.09 1.02 1.01 3/78 20896
/proc/meminfo: memFree=1511536/2055920 swapFree=4159456/4192956
[pid=20896] ppid=20894 vsize=12000 CPUtime=0
/proc/20896/stat : 20896 (PBS4_SAT07v2) R 20894 20896 20089 0 -1 4194304 496 0 0 0 0 0 0 0 18 0 1 0 218128842 12288000 478 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134570671 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20896/statm: 3000 482 79 219 0 2777 0

[startup+0.030358 s]
/proc/loadavg: 1.09 1.02 1.01 3/78 20896
/proc/meminfo: memFree=1511536/2055920 swapFree=4159456/4192956
[pid=20896] ppid=20894 vsize=12448 CPUtime=0.02
/proc/20896/stat : 20896 (PBS4_SAT07v2) R 20894 20896 20089 0 -1 4194304 2893 0 0 0 1 1 0 0 18 0 1 0 218128842 12746752 2875 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135006757 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20896/statm: 3112 2877 79 219 0 2889 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 12448

[startup+0.101372 s]
/proc/loadavg: 1.09 1.02 1.01 3/78 20896
/proc/meminfo: memFree=1511536/2055920 swapFree=4159456/4192956
[pid=20896] ppid=20894 vsize=17288 CPUtime=0.09
/proc/20896/stat : 20896 (PBS4_SAT07v2) R 20894 20896 20089 0 -1 4194304 4179 0 0 0 7 2 0 0 18 0 1 0 218128842 17702912 4063 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134586381 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20896/statm: 4322 4063 86 219 0 4099 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 17288

[startup+0.301409 s]
/proc/loadavg: 1.09 1.02 1.01 3/78 20896
/proc/meminfo: memFree=1511536/2055920 swapFree=4159456/4192956
[pid=20896] ppid=20894 vsize=17288 CPUtime=0.29
/proc/20896/stat : 20896 (PBS4_SAT07v2) R 20894 20896 20089 0 -1 4194304 4179 0 0 0 27 2 0 0 19 0 1 0 218128842 17702912 4063 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134586450 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20896/statm: 4322 4063 86 219 0 4099 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 17288

[startup+0.701484 s]
/proc/loadavg: 1.09 1.02 1.01 3/78 20896
/proc/meminfo: memFree=1511536/2055920 swapFree=4159456/4192956
[pid=20896] ppid=20894 vsize=17472 CPUtime=0.69
/proc/20896/stat : 20896 (PBS4_SAT07v2) R 20894 20896 20089 0 -1 4194304 4225 0 0 0 67 2 0 0 22 0 1 0 218128842 17891328 4109 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134586965 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20896/statm: 4368 4109 86 219 0 4145 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 17472

[startup+1.50163 s]
/proc/loadavg: 1.09 1.02 1.01 2/79 20897
/proc/meminfo: memFree=1493032/2055920 swapFree=4159456/4192956
[pid=20896] ppid=20894 vsize=21684 CPUtime=1.49
/proc/20896/stat : 20896 (PBS4_SAT07v2) R 20894 20896 20089 0 -1 4194304 5813 0 0 0 146 3 0 0 25 0 1 0 218128842 22204416 5145 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134586356 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20896/statm: 5421 5145 86 219 0 5198 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 21684

[startup+3.10293 s]
/proc/loadavg: 1.08 1.02 1.00 2/79 20897
/proc/meminfo: memFree=1490216/2055920 swapFree=4159456/4192956
[pid=20896] ppid=20894 vsize=23608 CPUtime=3.09
/proc/20896/stat : 20896 (PBS4_SAT07v2) R 20894 20896 20089 0 -1 4194304 6280 0 0 0 306 3 0 0 25 0 1 0 218128842 24174592 5612 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134586456 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20896/statm: 5902 5612 86 219 0 5679 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 23608

[startup+6.30152 s]
/proc/loadavg: 1.08 1.02 1.00 2/79 20897
/proc/meminfo: memFree=1486568/2055920 swapFree=4159456/4192956
[pid=20896] ppid=20894 vsize=28220 CPUtime=6.29
/proc/20896/stat : 20896 (PBS4_SAT07v2) R 20894 20896 20089 0 -1 4194304 7524 0 0 0 625 4 0 0 25 0 1 0 218128842 28897280 6789 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134586356 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20896/statm: 7055 6789 86 219 0 6832 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 28220

[startup+12.7017 s]
/proc/loadavg: 1.07 1.02 1.00 2/79 20897
/proc/meminfo: memFree=1474920/2055920 swapFree=4159456/4192956
[pid=20896] ppid=20894 vsize=39304 CPUtime=12.69
/proc/20896/stat : 20896 (PBS4_SAT07v2) R 20894 20896 20089 0 -1 4194304 10334 0 0 0 1264 5 0 0 25 0 1 0 218128842 40247296 9453 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134530019 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20896/statm: 9826 9453 86 219 0 9603 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 39304

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

[startup+19.1019 s]
/proc/loadavg: 1.06 1.01 1.00 2/79 20897
/proc/meminfo: memFree=1466344/2055920 swapFree=4159456/4192956
[pid=20896] ppid=20894 vsize=47448 CPUtime=19.08
/proc/20896/stat : 20896 (PBS4_SAT07v2) R 20894 20896 20089 0 -1 4194304 12448 0 0 0 1902 6 0 0 25 0 1 0 218128842 48586752 11567 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134586372 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20896/statm: 11862 11567 86 219 0 11639 0
Current children cumulated CPU time (s) 19.08
Current children cumulated vsize (KiB) 47448

[startup+20.7012 s]
/proc/loadavg: 1.06 1.01 1.00 2/79 20897
/proc/meminfo: memFree=1464808/2055920 swapFree=4159456/4192956
[pid=20896] ppid=20894 vsize=50000 CPUtime=20.69
/proc/20896/stat : 20896 (PBS4_SAT07v2) R 20894 20896 20089 0 -1 4194304 13036 0 0 0 2062 7 0 0 25 0 1 0 218128842 51200000 12155 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134586957 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20896/statm: 12500 12155 86 219 0 12277 0
Current children cumulated CPU time (s) 20.69
Current children cumulated vsize (KiB) 50000

[startup+21.5013 s]
/proc/loadavg: 1.06 1.01 1.00 2/79 20897
/proc/meminfo: memFree=1463016/2055920 swapFree=4159456/4192956
[pid=20896] ppid=20894 vsize=51756 CPUtime=21.49
/proc/20896/stat : 20896 (PBS4_SAT07v2) R 20894 20896 20089 0 -1 4194304 13509 0 0 0 2142 7 0 0 25 0 1 0 218128842 52998144 12628 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134586381 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20896/statm: 12939 12628 86 219 0 12716 0
Current children cumulated CPU time (s) 21.49
Current children cumulated vsize (KiB) 51756

[startup+22.3015 s]
/proc/loadavg: 1.06 1.01 1.00 2/79 20897
/proc/meminfo: memFree=1460008/2055920 swapFree=4159456/4192956
[pid=20896] ppid=20894 vsize=53748 CPUtime=22.28
/proc/20896/stat : 20896 (PBS4_SAT07v2) R 20894 20896 20089 0 -1 4194304 13909 0 0 0 2221 7 0 0 25 0 1 0 218128842 55037952 13028 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134586468 0 0 4096 16384 0 0 0 17 1 0 0
/proc/20896/statm: 13437 13028 86 219 0 13214 0
Current children cumulated CPU time (s) 22.28
Current children cumulated vsize (KiB) 53748

[startup+22.7016 s]
/proc/loadavg: 1.06 1.01 1.00 2/79 20897
/proc/meminfo: memFree=1460008/2055920 swapFree=4159456/4192956
[pid=20896] ppid=20894 vsize=0 CPUtime=22.69
/proc/20896/stat : 20896 (PBS4_SAT07v2) D 20894 20896 20089 0 -1 4194308 18451 0 0 0 2258 11 0 0 25 0 1 0 218128842 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 16384 18446744072100444862 0 0 17 1 0 0
/proc/20896/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 22.69
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 22.7071
CPU time (s): 22.6926
CPU user time (s): 22.5816
CPU system time (s): 0.110983
CPU usage (%): 99.9357
Max. virtual memory (cumulated for all children) (KiB): 80236

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 22.5816
system time used= 0.110983
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 18451
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= 8
involuntary context switches= 24

runsolver used 0.027995 second user time and 0.057991 second system time

The end

Launcher Data (download as text)

Begin job on node46 on Tue May  8 14:27:38 UTC 2007

IDJOB= 458539
IDBENCH= 1653
IDSOLVER= 200
FILE ID= node46/458539-1178634446

PBS_JOBID= 5218288

Free space on /tmp= 66204 MiB

SOLVER NAME= PBS4_v2 2007-03-23
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-pilot87.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/458539-1178634446/instance-458539-1178634446.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node46/convwatcher-458539-1178634446 -o ROOT/results/node46/conversion-458539-1178634446 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/458539-1178634446/instance-458539-1178634446.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node46/watcher-458539-1178634446 -o ROOT/results/node46/solver-458539-1178634446 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/458539-1178634446/instance-458539-1178634446.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  e59c2905e997a0635cce57f2d16b8705

RANDOM SEED= 746137926

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node46.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		: 3000.268
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	: 5931.00
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		: 3000.268
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:       1512072 kB
Buffers:         42988 kB
Cached:         354992 kB
SwapCached:       3288 kB
Active:         150764 kB
Inactive:       277932 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1512072 kB
SwapTotal:     4192956 kB
SwapFree:      4159456 kB
Dirty:           16476 kB
Writeback:           0 kB
Mapped:          38408 kB
Slab:           100520 kB
Committed_AS:  5188704 kB
PageTables:       2008 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= 66204 MiB

End job on node46 on Tue May  8 14:28:02 UTC 2007