Trace number 458190

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 NameAnswerCPU timeWall clock time
PBS4_v2 2007-03-23UNSAT 19.619 19.6243

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111213670.opb
MD5SUMb39cb5acbcabe453d1995603b90c4d93
Bench CategorySATUNSAT-SMALLINT-LIN (no optimisation, small integers, linear constraints)
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 benchmark0.015996
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables169
Total number of constraints101
Number of constraints which are clauses30
Number of constraints which are cardinality constraints (but not clauses)70
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint2
Maximum length of a constraint169
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 38
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 1239
Number of bits of the biggest sum of numbers11
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/458190-1178619738/instance-458190-1178619738.opb ......
19.59/19.62	c done parsing opb.
19.59/19.62	s UNSATISFIABLE
19.59/19.62	c Total Run Time					19.612

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/458190-1178619738/instance-458190-1178619738.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/node60/watcher-458190-1178619738 -o ROOT/results/node60/solver-458190-1178619738 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/458190-1178619738/instance-458190-1178619738.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: 0.88 0.93 0.96 3/64 13306
/proc/meminfo: memFree=1477576/2055920 swapFree=4183380/4192956
[pid=13306] ppid=13304 vsize=1320 CPUtime=0
/proc/13306/stat : 13306 (PBS4_SAT07v2) R 13304 13306 10817 0 -1 4194304 141 0 0 0 0 0 0 0 18 0 1 0 309883832 1351680 123 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134560376 0 0 4096 16384 0 0 0 17 1 0 0
/proc/13306/statm: 330 123 90 219 0 107 0

[startup+0.044312 s]
/proc/loadavg: 0.88 0.93 0.96 3/64 13306
/proc/meminfo: memFree=1477576/2055920 swapFree=4183380/4192956
[pid=13306] ppid=13304 vsize=1320 CPUtime=0.04
/proc/13306/stat : 13306 (PBS4_SAT07v2) R 13304 13306 10817 0 -1 4194304 167 0 0 0 4 0 0 0 18 0 1 0 309883832 1351680 149 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/13306/statm: 330 149 90 219 0 107 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1320

[startup+0.101317 s]
/proc/loadavg: 0.88 0.93 0.96 3/64 13306
/proc/meminfo: memFree=1477576/2055920 swapFree=4183380/4192956
[pid=13306] ppid=13304 vsize=1456 CPUtime=0.1
/proc/13306/stat : 13306 (PBS4_SAT07v2) R 13304 13306 10817 0 -1 4194304 207 0 0 0 10 0 0 0 18 0 1 0 309883832 1490944 189 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/13306/statm: 364 189 90 219 0 141 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1456

[startup+0.301337 s]
/proc/loadavg: 0.88 0.93 0.96 3/64 13306
/proc/meminfo: memFree=1477576/2055920 swapFree=4183380/4192956
[pid=13306] ppid=13304 vsize=2376 CPUtime=0.29
/proc/13306/stat : 13306 (PBS4_SAT07v2) R 13304 13306 10817 0 -1 4194304 322 0 0 0 29 0 0 0 19 0 1 0 309883832 2433024 304 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/13306/statm: 594 304 90 219 0 371 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2376

[startup+0.701375 s]
/proc/loadavg: 0.88 0.93 0.96 3/64 13306
/proc/meminfo: memFree=1477576/2055920 swapFree=4183380/4192956
[pid=13306] ppid=13304 vsize=3596 CPUtime=0.69
/proc/13306/stat : 13306 (PBS4_SAT07v2) R 13304 13306 10817 0 -1 4194304 538 0 0 0 69 0 0 0 23 0 1 0 309883832 3682304 520 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/13306/statm: 899 520 90 219 0 676 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3596

[startup+1.50146 s]
/proc/loadavg: 0.88 0.93 0.96 2/65 13307
/proc/meminfo: memFree=1475392/2055920 swapFree=4183380/4192956
[pid=13306] ppid=13304 vsize=6100 CPUtime=1.49
/proc/13306/stat : 13306 (PBS4_SAT07v2) R 13304 13306 10817 0 -1 4194304 891 0 0 0 148 1 0 0 25 0 1 0 309883832 6246400 824 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/13306/statm: 1525 824 90 219 0 1302 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 6100

[startup+3.10161 s]
/proc/loadavg: 0.88 0.93 0.96 2/65 13307
/proc/meminfo: memFree=1473792/2055920 swapFree=4183380/4192956
[pid=13306] ppid=13304 vsize=6892 CPUtime=3.1
/proc/13306/stat : 13306 (PBS4_SAT07v2) R 13304 13306 10817 0 -1 4194304 1415 0 0 0 308 2 0 0 25 0 1 0 309883832 7057408 1251 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/13306/statm: 1723 1251 90 219 0 1500 0
Current children cumulated CPU time (s) 3.1
Current children cumulated vsize (KiB) 6892

[startup+6.30192 s]
/proc/loadavg: 0.89 0.93 0.96 2/65 13307
/proc/meminfo: memFree=1471432/2055920 swapFree=4183380/4192956
[pid=13306] ppid=13304 vsize=7456 CPUtime=6.29
/proc/13306/stat : 13306 (PBS4_SAT07v2) R 13304 13306 10817 0 -1 4194304 1837 0 0 0 625 4 0 0 25 0 1 0 309883832 7634944 1673 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134544667 0 0 4096 16384 0 0 0 17 1 0 0
/proc/13306/statm: 1864 1673 90 219 0 1641 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 7456

[startup+12.7016 s]
/proc/loadavg: 0.90 0.93 0.96 2/65 13307
/proc/meminfo: memFree=1467784/2055920 swapFree=4183380/4192956
[pid=13306] ppid=13304 vsize=13332 CPUtime=12.69
/proc/13306/stat : 13306 (PBS4_SAT07v2) R 13304 13306 10817 0 -1 4194304 2888 0 0 0 1262 7 0 0 25 0 1 0 309883832 13651968 2531 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134544667 0 0 4096 16384 0 0 0 17 1 0 0
/proc/13306/statm: 3333 2531 90 219 0 3110 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 13332

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

[startup+15.9019 s]
/proc/loadavg: 0.90 0.93 0.96 2/65 13307
/proc/meminfo: memFree=1466888/2055920 swapFree=4183380/4192956
[pid=13306] ppid=13304 vsize=13924 CPUtime=15.88
/proc/13306/stat : 13306 (PBS4_SAT07v2) R 13304 13306 10817 0 -1 4194304 3100 0 0 0 1581 7 0 0 25 0 1 0 309883832 14258176 2743 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/13306/statm: 3481 2743 90 219 0 3258 0
Current children cumulated CPU time (s) 15.88
Current children cumulated vsize (KiB) 13924

[startup+17.501 s]
/proc/loadavg: 0.90 0.93 0.96 2/65 13307
/proc/meminfo: memFree=1466376/2055920 swapFree=4183380/4192956
[pid=13306] ppid=13304 vsize=15832 CPUtime=17.49
/proc/13306/stat : 13306 (PBS4_SAT07v2) R 13304 13306 10817 0 -1 4194304 3575 0 0 0 1741 8 0 0 25 0 1 0 309883832 16211968 2833 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134544734 0 0 4096 16384 0 0 0 17 1 0 0
/proc/13306/statm: 3958 2833 90 219 0 3735 0
Current children cumulated CPU time (s) 17.49
Current children cumulated vsize (KiB) 15832

[startup+18.3011 s]
/proc/loadavg: 0.90 0.93 0.96 2/65 13307
/proc/meminfo: memFree=1466376/2055920 swapFree=4183380/4192956
[pid=13306] ppid=13304 vsize=15832 CPUtime=18.28
/proc/13306/stat : 13306 (PBS4_SAT07v2) R 13304 13306 10817 0 -1 4194304 3603 0 0 0 1820 8 0 0 25 0 1 0 309883832 16211968 2861 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/13306/statm: 3958 2861 90 219 0 3735 0
Current children cumulated CPU time (s) 18.28
Current children cumulated vsize (KiB) 15832

[startup+19.1012 s]
/proc/loadavg: 0.90 0.93 0.96 2/65 13307
/proc/meminfo: memFree=1466248/2055920 swapFree=4183380/4192956
[pid=13306] ppid=13304 vsize=15832 CPUtime=19.08
/proc/13306/stat : 13306 (PBS4_SAT07v2) R 13304 13306 10817 0 -1 4194304 3640 0 0 0 1900 8 0 0 25 0 1 0 309883832 16211968 2898 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/13306/statm: 3958 2898 90 219 0 3735 0
Current children cumulated CPU time (s) 19.08
Current children cumulated vsize (KiB) 15832

[startup+19.5012 s]
/proc/loadavg: 0.90 0.93 0.96 2/65 13307
/proc/meminfo: memFree=1466248/2055920 swapFree=4183380/4192956
[pid=13306] ppid=13304 vsize=16040 CPUtime=19.49
/proc/13306/stat : 13306 (PBS4_SAT07v2) R 13304 13306 10817 0 -1 4194304 3662 0 0 0 1940 9 0 0 25 0 1 0 309883832 16424960 2920 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/13306/statm: 4010 2920 90 219 0 3787 0
Current children cumulated CPU time (s) 19.49
Current children cumulated vsize (KiB) 16040

[startup+19.6012 s]
/proc/loadavg: 0.90 0.93 0.96 2/65 13307
/proc/meminfo: memFree=1466248/2055920 swapFree=4183380/4192956
[pid=13306] ppid=13304 vsize=16040 CPUtime=19.59
/proc/13306/stat : 13306 (PBS4_SAT07v2) R 13304 13306 10817 0 -1 4194304 3664 0 0 0 1950 9 0 0 25 0 1 0 309883832 16424960 2922 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/13306/statm: 4010 2922 90 219 0 3787 0
Current children cumulated CPU time (s) 19.59
Current children cumulated vsize (KiB) 16040

Child status: 0
Real time (s): 19.6243
CPU time (s): 19.619
CPU user time (s): 19.523
CPU system time (s): 0.095985
CPU usage (%): 99.9732
Max. virtual memory (cumulated for all children) (KiB): 16040

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 19.523
system time used= 0.095985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3681
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 0.014997 second user time and 0.048992 second system time

The end

Launcher Data (download as text)

Begin job on node60 on Tue May  8 10:22:18 UTC 2007

IDJOB= 458190
IDBENCH= 1267
IDSOLVER= 200
FILE ID= node60/458190-1178619738

PBS_JOBID= 5218240

Free space on /tmp= 66562 MiB

SOLVER NAME= PBS4_v2 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111213670.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/458190-1178619738/instance-458190-1178619738.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node60/convwatcher-458190-1178619738 -o ROOT/results/node60/conversion-458190-1178619738 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/458190-1178619738/instance-458190-1178619738.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node60/watcher-458190-1178619738 -o ROOT/results/node60/solver-458190-1178619738 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/458190-1178619738/instance-458190-1178619738.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  b39cb5acbcabe453d1995603b90c4d93

RANDOM SEED= 248084787

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node60.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		: 3000.214
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		: 3000.214
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:       1478048 kB
Buffers:         35804 kB
Cached:         418284 kB
SwapCached:       3620 kB
Active:         173120 kB
Inactive:       291016 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1478048 kB
SwapTotal:     4192956 kB
SwapFree:      4183380 kB
Dirty:            2428 kB
Writeback:           0 kB
Mapped:          16076 kB
Slab:            99752 kB
Committed_AS:  5302768 kB
PageTables:       1464 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= 66562 MiB

End job on node60 on Tue May  8 10:22:38 UTC 2007