Trace number 200560

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
galacJ beta 1UNSAT 1.12483 1.17025

General information on the benchmark

NamequeensKnights/
queensKnights-10-5-add.xml
MD5SUM4e0c486a909311b63b83c4f87ae0d156
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 benchmark0.12598
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables15
Number of constraints55
Maximum constraint arity2
Maximum domain size100
Number of constraints which are defined in extension0
Number of constraints which are defined in intension55
Global constraints used (with number of constraints)

Solver Data (download as text)

0.03	rm: No match.
0.03	c --- Preproc Stats ---
0.03	c benchs : unknown.xml
0.91	c start processing
0.91	c start relation processing
0.93	c start cnf exporting
0.99	c parsing time : 0.74
0.99	c preprocessing time : 0.826
0.99	
0.99	c Nary constraints - conflicts : 0 supports : 0
0.99	c Binary constraints - conflicts : 50 supports :5
0.99	c max arity constraint : 2
0.99	c Max Tuples generated 10000
0.99	c relations : 11
0.99	c relations BDD: 0
0.99	c vars : 601 - clauses :  27735
0.99	
1.04	c Start Sat4J solver
1.04	
1.14	s UNSATISFIABLE
1.14	c {propagations=30733, learnedliterals=1, changedreason=0, reduceddb=0, starts=1, learnedbinaryclauses=1, learnedclauses=59, reducedliterals=5311, learnedternaryclauses=1, conflicts=100, serialVersionUID=1, inspects=87388, rootSimplifications=0, decisions=100}

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/node1/watcher-200560-1168143075 -o ROOT/results/node1/solver-200560-1168143075 -C 1800 -M 900 /tmp/evaluation/200560-1168143075/galacJ.sh /tmp/evaluation/200560-1168143075/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: 2.03 2.00 2.00 3/86 9948
/proc/meminfo: memFree=1746960/2055920 swapFree=4165612/4192956
[pid=9947] ppid=9945 vsize=6344 CPUtime=0
/proc/9947/stat : 9947 (galacJ.sh) R 9945 9947 9374 0 -1 4194304 261 0 0 0 0 0 0 0 21 0 1 0 162703267 6496256 215 18446744073709551615 4194304 4520092 548682069328 18446744073709551615 259353154067 0 0 4096 8192 0 0 0 17 1 0 0
/proc/9947/statm: 1586 215 165 79 0 122 0

[startup+0.10454 s]
/proc/loadavg: 2.03 2.00 2.00 3/86 9948
/proc/meminfo: memFree=1746960/2055920 swapFree=4165612/4192956
[pid=9947] ppid=9945 vsize=47568 CPUtime=0.01
/proc/9947/stat : 9947 (galacJ.sh) S 9945 9947 9374 0 -1 4194304 795 1728 0 0 0 0 0 1 18 0 1 0 162703267 48709632 362 18446744073709551615 4194304 4520092 548682069328 18446744073709551615 259352882010 0 2 4096 73728 18446744071563181037 0 0 17 1 0 0
/proc/9947/statm: 11892 362 245 79 0 217 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 47568

[startup+0.512583 s]
/proc/loadavg: 2.03 2.00 2.00 3/86 9948
/proc/meminfo: memFree=1746960/2055920 swapFree=4165612/4192956
[pid=9947] ppid=9945 vsize=47568 CPUtime=0.01
/proc/9947/stat : 9947 (galacJ.sh) S 9945 9947 9374 0 -1 4194304 795 1728 0 0 0 0 0 1 18 0 1 0 162703267 48709632 362 18446744073709551615 4194304 4520092 548682069328 18446744073709551615 259352882010 0 2 4096 73728 18446744071563181037 0 0 17 1 0 0
/proc/9947/statm: 11892 362 245 79 0 217 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 47568

Child status: 0
Real time (s): 1.17025
CPU time (s): 1.12483
CPU user time (s): 1.03484
CPU system time (s): 0.089986
CPU usage (%): 96.1186
Max. virtual memory (cumulated for all children) (KiB): 910172

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.03484
system time used= 0.089986
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 14650
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 792
involuntary context switches= 726

runsolver used 0.004999 s user time and 0.009998 s system time

The end

Launcher Data (download as text)

Begin job on node1 on Sun Jan  7 04:11:15 UTC 2007


IDJOB= 200560
IDBENCH= 3715
FILE ID= node1/200560-1168143075

PBS_JOBID= 3477842

Free space on /tmp= 66305 MiB

BENCH NAME= HOME/pub/bench/CPAI06/queensKnights/queensKnights-10-5-add.xml
COMMAND LINE= /tmp/evaluation/200560-1168143075/galacJ.sh /tmp/evaluation/200560-1168143075/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node1/watcher-200560-1168143075 -o ROOT/results/node1/solver-200560-1168143075 -C 1800 -M 900  /tmp/evaluation/200560-1168143075/galacJ.sh /tmp/evaluation/200560-1168143075/unknown.xml

META MD5SUM SOLVER= ffd78bd56f274e94bd0d0faf76d262cb
MD5SUM BENCH=  4e0c486a909311b63b83c4f87ae0d156

RANDOM SEED= 739318513

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		: 3000.234
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		: 3000.234
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:       1747568 kB
Buffers:         45896 kB
Cached:         150744 kB
SwapCached:       4096 kB
Active:         146372 kB
Inactive:        95400 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1747568 kB
SwapTotal:     4192956 kB
SwapFree:      4165612 kB
Dirty:            3380 kB
Writeback:           0 kB
Mapped:          58080 kB
Slab:            51352 kB
Committed_AS:  4514860 kB
PageTables:       2308 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= 66305 MiB



End job on node1 on Sun Jan  7 04:11:17 UTC 2007