Trace number 217957

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 0.3SAT 19.812 19.9837

General information on the benchmark

Nameramsey/ramsey4/
ramsey-30-4.xml
MD5SUMe82b0009e4bb9bf403107140046c20a6
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark2.32765
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables435
Number of constraints4060
Maximum constraint arity3
Maximum domain size4
Number of constraints which are defined in extension0
Number of constraints which are defined in intension4060
Global constraints used (with number of constraints)

Solver Data (download as text)

0.10	c This is CSPtoSAT+minisat version 0.3
0.10	c (c) 2006 roussel@cril.univ-artois.fr
0.10	
0.10	c This solver internally uses a modified version of MiniSat2 version 061112
0.10	c MiniSat -- Copyright (c) 2003-2006, Niklas Een, Niklas Sorensson
0.10	
0.10	c parsing...
0.28	c ...done
0.28	c #SATvar=1742 #SATclauses=3045 #CSPpredicates=4060
19.97	Verified 3045 original clauses.
19.97	c SAT problem is solved
19.97	restarts              : 16
19.97	conflicts             : 110028         (5559 /sec)
19.97	decisions             : 4840803        (1.33 % random) (244572 /sec)
19.97	propagations          : 25441978       (1285403 /sec)
19.97	conflict literals     : 537053         (2.17 % deleted)
19.97	Memory used           : 10.66 MB
19.97	CPU time              : 19.793 s
19.97	c all predicates checked
19.97	
19.97	s SATISFIABLE
19.97	v 1 0 2 1 0 0 1 3 3 1 3 0 3 2 3 2 0 1 2 3 3 1 0 0 1 2 2 2 2 1 0 2 1 2 0 2 3 2 1 0 2 3 0 2 0 2 1 3 1 3 1 2 0 3 3 1 0 2 2 2 2 1 2 2 0 3 3 1 3 0 1 3 3 3 1 0 0 3 2 1 3 1 0 2 3 3 3 1 1 3 1 1 3 2 3 2 0 2 2 0 1 0 3 2 0 2 3 0 0 1 1 0 3 1 0 3 1 0 3 1 2 1 3 0 2 3 1 2 0 3 2 2 2 0 1 1 1 0 0 2 3 2 1 0 2 2 3 2 0 3 3 1 3 3 1 1 3 0 0 0 0 1 3 1 2 3 1 2 1 1 1 2 3 1 2 3 3 0 0 2 2 0 2 1 0 3 1 2 0 2 3 2 2 1 0 0 3 2 1 2 3 0 0 2 1 3 2 2 0 2 0 3 1 1 1 2 0 2 3 3 1 1 0 1 3 2 2 2 0 2 2 0 3 3 2 1 0 1 1 3 0 0 1 3 1 3 1 1 1 3 0 2 0 0 2 3 2 1 1 3 1 3 2 2 1 2 0 1 0 2 2 0 0 0 1 2 0 2 1 0 0 2 0 0 3 0 1 1 0 3 1 0 2 3 2 2 3 1 2 2 1 3 0 1 1 0 1 2 0 0 3 2 2 1 3 0 3 2 2 1 1 3 1 2 3 2 0 1 3 3 0 3 3 0 0 2 3 0 1 1 3 1 3 3 2 3 1 3 2 2 2 1 2 1 3 1 0 0 2 1 0 1 1 2 3 2 1 0 1 2 0 3 2 1 0 3 0 0 2 1 3 2 3 2 3 0 0 3 3 1 2 0 2 1 0 1 2 1 3 3 0 1 1 2 1 2 2 3 0 3 0 0 1 0 2 1 0 0 3 0 0 3 2 2 1 3 0 2 1 1 0 1 1 3 1 
19.97

Verifier Data (download as text)

OK

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node75/watcher-217957-1168065535 -o ROOT/results/node75/solver-217957-1168065535 -C 1800 -M 900 /tmp/evaluation/217957-1168065535/CSPtoSAT+minisat /tmp/evaluation/217957-1168065535/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

/proc/loadavg: 1.23 1.06 1.25 3/73 19360
/proc/meminfo: memFree=1719968/2055920 swapFree=4191892/4192956
[pid=19359] ppid=19357 vsize=380 CPUtime=0
/proc/19359/stat : 19359 (CSPtoSAT+minisa) R 19357 19359 19200 0 -1 4194304 41 0 0 0 0 0 0 0 20 0 1 0 154952943 389120 26 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 6734123 0 0 4096 0 0 0 0 17 1 0 0
/proc/19359/statm: 95 26 21 52 0 18 0

[startup+0.102829 s]
/proc/loadavg: 1.23 1.06 1.25 3/73 19360
/proc/meminfo: memFree=1719968/2055920 swapFree=4191892/4192956
[pid=19359] ppid=19357 vsize=7480 CPUtime=0.09
/proc/19359/stat : 19359 (CSPtoSAT+minisa) R 19357 19359 19200 0 -1 4194304 981 0 0 0 9 0 0 0 20 0 1 0 154952943 7659520 949 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 4159310439 0 0 4096 0 0 0 0 17 0 0 0
/proc/19359/statm: 1870 949 702 52 0 238 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7480

[startup+0.510876 s]
/proc/loadavg: 1.23 1.06 1.25 3/73 19360
/proc/meminfo: memFree=1719968/2055920 swapFree=4191892/4192956
[pid=19359] ppid=19357 vsize=7992 CPUtime=0.5
/proc/19359/stat : 19359 (CSPtoSAT+minisa) R 19357 19359 19200 0 -1 4194304 1160 0 0 0 50 0 0 0 24 0 1 0 154952943 8183808 1102 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134538375 0 0 4096 0 0 0 0 17 0 0 0
/proc/19359/statm: 1998 1102 719 52 0 366 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 7992

[startup+1.33498 s]
/proc/loadavg: 1.23 1.06 1.25 3/73 19360
/proc/meminfo: memFree=1718112/2055920 swapFree=4191892/4192956
[pid=19359] ppid=19357 vsize=8124 CPUtime=1.31
/proc/19359/stat : 19359 (CSPtoSAT+minisa) R 19357 19359 19200 0 -1 4194304 1196 0 0 0 131 0 0 0 25 0 1 0 154952943 8318976 1138 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134678582 0 0 4096 0 0 0 0 17 0 0 0
/proc/19359/statm: 2031 1138 719 52 0 399 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 8124

[startup+2.97917 s]
/proc/loadavg: 1.23 1.06 1.25 3/73 19360
/proc/meminfo: memFree=1717792/2055920 swapFree=4191892/4192956
[pid=19359] ppid=19357 vsize=8396 CPUtime=2.94
/proc/19359/stat : 19359 (CSPtoSAT+minisa) R 19357 19359 19200 0 -1 4194304 1249 0 0 0 294 0 0 0 25 0 1 0 154952943 8597504 1191 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134562958 0 0 4096 0 0 0 0 17 0 0 0
/proc/19359/statm: 2099 1191 719 52 0 467 0
Current children cumulated CPU time (s) 2.94
Current children cumulated vsize (KiB) 8396

[startup+6.25756 s]
/proc/loadavg: 1.29 1.07 1.25 3/73 19360
/proc/meminfo: memFree=1716832/2055920 swapFree=4191892/4192956
[pid=19359] ppid=19357 vsize=8792 CPUtime=6.2
/proc/19359/stat : 19359 (CSPtoSAT+minisa) R 19357 19359 19200 0 -1 4194304 1355 0 0 0 619 1 0 0 25 0 1 0 154952943 9003008 1297 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134665648 0 0 4096 0 0 0 0 17 0 0 0
/proc/19359/statm: 2198 1297 719 52 0 566 0
Current children cumulated CPU time (s) 6.2
Current children cumulated vsize (KiB) 8792

[startup+12.7233 s]
/proc/loadavg: 1.40 1.10 1.26 3/73 19360
/proc/meminfo: memFree=1715040/2055920 swapFree=4191892/4192956
[pid=19359] ppid=19357 vsize=9584 CPUtime=12.62
/proc/19359/stat : 19359 (CSPtoSAT+minisa) R 19357 19359 19200 0 -1 4194304 1572 0 0 0 1261 1 0 0 25 0 1 0 154952943 9814016 1514 18446744073709551615 134512640 134728504 4294956624 18446744073709551615 134678275 0 0 4096 0 0 0 0 17 0 0 0
/proc/19359/statm: 2396 1514 719 52 0 764 0
Current children cumulated CPU time (s) 12.62
Current children cumulated vsize (KiB) 9584

Child status: 0
Real time (s): 19.9837
CPU time (s): 19.812
CPU user time (s): 19.796
CPU system time (s): 0.015997
CPU usage (%): 99.1408
Max. virtual memory (cumulated for all children) (KiB): 10904

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 19.796
system time used= 0.015997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1914
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= 12
involuntary context switches= 435

runsolver used 0.014997 s user time and 0.06399 s system time

The end

Launcher Data (download as text)

Begin job on node75 on Sat Jan  6 06:38:56 UTC 2007


IDJOB= 217957
IDBENCH= 5183
FILE ID= node75/217957-1168065535

PBS_JOBID= 3475637

Free space on /tmp= 66546 MiB

BENCH NAME= HOME/pub/bench/CPAI06/ramsey/ramsey4/ramsey-30-4.xml
COMMAND LINE= /tmp/evaluation/217957-1168065535/CSPtoSAT+minisat /tmp/evaluation/217957-1168065535/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node75/watcher-217957-1168065535 -o ROOT/results/node75/solver-217957-1168065535 -C 1800 -M 900  /tmp/evaluation/217957-1168065535/CSPtoSAT+minisat /tmp/evaluation/217957-1168065535/unknown.xml

META MD5SUM SOLVER= 0ab327eaa5be249b47b2f4b19927f0b0
MD5SUM BENCH=  e82b0009e4bb9bf403107140046c20a6

RANDOM SEED= 594157273

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		: 3000.218
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		: 3000.218
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1720320 kB
Buffers:         17960 kB
Cached:         229700 kB
SwapCached:        268 kB
Active:          35748 kB
Inactive:       235504 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1720320 kB
SwapTotal:     4192956 kB
SwapFree:      4191892 kB
Dirty:            4696 kB
Writeback:           0 kB
Mapped:          35920 kB
Slab:            49652 kB
Committed_AS:  3019944 kB
PageTables:       1760 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= 66546 MiB



End job on node75 on Sat Jan  6 06:39:16 UTC 2007