Trace number 200345

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
CSPtoSAT+minisat 0.3UNSAT 77.6322 78.2196

General information on the benchmark

NamequeensKnights/
queensKnights-8-5-mul.xml
MD5SUM408403bd4e513fb01912cd05f0f79f2c
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.119981
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables13
Number of constraints78
Maximum constraint arity2
Maximum domain size64
Number of constraints which are defined in extension0
Number of constraints which are defined in intension78
Global constraints used (with number of constraints)

Solver Data (download as text)

0.17	c This is CSPtoSAT+minisat version 0.3
0.17	c (c) 2006 roussel@cril.univ-artois.fr
0.17	
0.17	c This solver internally uses a modified version of MiniSat2 version 061112
0.17	c MiniSat -- Copyright (c) 2003-2006, Niklas Een, Niklas Sorensson
0.17	
0.17	c parsing...
0.17	c ...done
0.17	c #SATvar=1128 #SATclauses=2213 #CSPpredicates=78
78.21	c SAT problem is solved
78.21	restarts              : 14
78.21	conflicts             : 50179          (647 /sec)
78.21	decisions             : 77728          (1.43 % random) (1001 /sec)
78.21	propagations          : 8693482        (112012 /sec)
78.21	conflict literals     : 1531765        (1.46 % deleted)
78.21	Memory used           : 8.07 MB
78.21	CPU time              : 77.6122 s
78.21	
78.21	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node17/watcher-200345-1168055362 -o ROOT/results/node17/solver-200345-1168055362 -C 1800 -M 900 /tmp/evaluation/200345-1168055362/CSPtoSAT+minisat /tmp/evaluation/200345-1168055362/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 KiB
Current StackSize limit: 10240 KiB


[startup+0.10458 s]
/proc/loadavg: 1.92 1.98 1.92 6/86 7879
/proc/meminfo: memFree=1162416/2055920 swapFree=4192812/4192956
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 0
/proc/loadavg: 1.92 1.98 1.92 6/86 7879
/proc/meminfo: memFree=1162416/2055920 swapFree=4192812/4192956
[pid=7878] ppid=7876 vsize=7056 CPUtime=0.19
/proc/7878/stat : 7878 (CSPtoSAT+minisa) R 7876 7878 6995 0 -1 4194304 913 0 0 0 19 0 0 0 19 0 1 0 153930999 7225344 868 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134678674 0 0 4096 0 0 0 0 17 1 0 0
/proc/7878/statm: 1764 868 720 52 0 132 0

[startup+0.512621 s]
/proc/loadavg: 1.92 1.98 1.92 6/86 7879
/proc/meminfo: memFree=1162416/2055920 swapFree=4192812/4192956
[pid=7878] ppid=7876 vsize=7056 CPUtime=0.5
/proc/7878/stat : 7878 (CSPtoSAT+minisa) R 7876 7878 6995 0 -1 4194304 925 0 0 0 50 0 0 0 22 0 1 0 153930999 7225344 880 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687395 0 0 4096 0 0 0 0 17 1 0 0
/proc/7878/statm: 1764 880 720 52 0 132 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 7056

[startup+1.33371 s]
/proc/loadavg: 1.92 1.98 1.92 3/86 7879
/proc/meminfo: memFree=1161584/2055920 swapFree=4192812/4192956
[pid=7878] ppid=7876 vsize=7188 CPUtime=1.31
/proc/7878/stat : 7878 (CSPtoSAT+minisa) R 7876 7878 6995 0 -1 4194304 947 0 0 0 131 0 0 0 25 0 1 0 153930999 7360512 902 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687516 0 0 4096 0 0 0 0 17 1 0 0
/proc/7878/statm: 1797 902 720 52 0 165 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 7188

[startup+2.97088 s]
/proc/loadavg: 1.92 1.98 1.92 3/86 7879
/proc/meminfo: memFree=1161456/2055920 swapFree=4192812/4192956
[pid=7878] ppid=7876 vsize=7320 CPUtime=2.94
/proc/7878/stat : 7878 (CSPtoSAT+minisa) R 7876 7878 6995 0 -1 4194304 981 0 0 0 294 0 0 0 25 0 1 0 153930999 7495680 936 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687518 0 0 4096 0 0 0 0 17 1 0 0
/proc/7878/statm: 1830 936 720 52 0 198 0
Current children cumulated CPU time (s) 2.94
Current children cumulated vsize (KiB) 7320

[startup+6.25022 s]
/proc/loadavg: 1.93 1.98 1.92 3/86 7879
/proc/meminfo: memFree=1161520/2055920 swapFree=4192812/4192956
[pid=7878] ppid=7876 vsize=7452 CPUtime=6.19
/proc/7878/stat : 7878 (CSPtoSAT+minisa) R 7876 7878 6995 0 -1 4194304 1012 0 0 0 619 0 0 0 25 0 1 0 153930999 7630848 967 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687441 0 0 4096 0 0 0 0 17 1 0 0
/proc/7878/statm: 1863 967 720 52 0 231 0
Current children cumulated CPU time (s) 6.19
Current children cumulated vsize (KiB) 7452

[startup+12.7109 s]
/proc/loadavg: 1.93 1.98 1.92 3/86 7879
/proc/meminfo: memFree=1158000/2055920 swapFree=4192812/4192956
[pid=7878] ppid=7876 vsize=7604 CPUtime=12.6
/proc/7878/stat : 7878 (CSPtoSAT+minisa) R 7876 7878 6995 0 -1 4194304 1061 0 0 0 1260 0 0 0 25 0 1 0 153930999 7786496 1016 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687525 0 0 4096 0 0 0 0 17 1 0 0
/proc/7878/statm: 1901 1016 720 52 0 269 0
Current children cumulated CPU time (s) 12.6
Current children cumulated vsize (KiB) 7604

[startup+25.5262 s]
/proc/loadavg: 1.95 1.98 1.92 3/86 7879
/proc/meminfo: memFree=1154608/2055920 swapFree=4192812/4192956
[pid=7878] ppid=7876 vsize=7868 CPUtime=25.32
/proc/7878/stat : 7878 (CSPtoSAT+minisa) R 7876 7878 6995 0 -1 4194304 1121 0 0 0 2532 0 0 0 25 0 1 0 153930999 8056832 1076 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687436 0 0 4096 0 0 0 0 17 1 0 0
/proc/7878/statm: 1967 1076 720 52 0 335 0
Current children cumulated CPU time (s) 25.32
Current children cumulated vsize (KiB) 7868

[startup+51.1609 s]
/proc/loadavg: 1.96 1.98 1.92 3/86 7879
/proc/meminfo: memFree=1151152/2055920 swapFree=4192812/4192956
[pid=7878] ppid=7876 vsize=8132 CPUtime=50.77
/proc/7878/stat : 7878 (CSPtoSAT+minisa) R 7876 7878 6995 0 -1 4194304 1190 0 0 0 5076 1 0 0 25 0 1 0 153930999 8327168 1145 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134687525 0 0 4096 0 0 0 0 17 1 0 0
/proc/7878/statm: 2033 1145 720 52 0 401 0
Current children cumulated CPU time (s) 50.77
Current children cumulated vsize (KiB) 8132

Child status: 0
Real time (s): 78.2196
CPU time (s): 77.6322
CPU user time (s): 77.6142
CPU system time (s): 0.017997
CPU usage (%): 99.249
Max. virtual memory (cumulated for all children) (KiB): 8260

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 77.6142
system time used= 0.017997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1213
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= 11
involuntary context switches= 1689

runsolver used 0.058991 s user time and 0.226965 s system time

The end

Launcher Data (download as text)

Begin job on node17 on Sat Jan  6 03:49:22 UTC 2007


IDJOB= 200345
IDBENCH= 3702
FILE ID= node17/200345-1168055362

PBS_JOBID= 3475306

Free space on /tmp= 66316 MiB

BENCH NAME= HOME/pub/bench/CPAI06/queensKnights/queensKnights-8-5-mul.xml
COMMAND LINE= /tmp/evaluation/200345-1168055362/CSPtoSAT+minisat /tmp/evaluation/200345-1168055362/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node17/watcher-200345-1168055362 -o ROOT/results/node17/solver-200345-1168055362 -C 1800 -M 900  /tmp/evaluation/200345-1168055362/CSPtoSAT+minisat /tmp/evaluation/200345-1168055362/unknown.xml

META MD5SUM SOLVER= 0ab327eaa5be249b47b2f4b19927f0b0
MD5SUM BENCH=  408403bd4e513fb01912cd05f0f79f2c

RANDOM SEED= 808899594

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.236
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		: 3000.236
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:       1162832 kB
Buffers:         59780 kB
Cached:         325236 kB
SwapCached:          0 kB
Active:         628788 kB
Inactive:       170228 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1162832 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1528 kB
Writeback:           0 kB
Mapped:         436420 kB
Slab:            77832 kB
Committed_AS:  4065008 kB
PageTables:       3396 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= 66316 MiB



End job on node17 on Sat Jan  6 03:50:41 UTC 2007