Trace number 243060

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
galac 1SAT 0.955854 1.07261

General information on the benchmark

Namedimacs/aim-50/
aim-50-2-0-sat-3_ext.xml
MD5SUM37e41ad1a7a89820b8d626e9d298f946
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.016996
SatisfiableYES
(Un)Satisfiability was proved
Number of variables50
Number of constraints96
Maximum constraint arity3
Maximum domain size2
Number of constraints which are defined in extension96
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.04	c --- Preproc Stats ---
0.47	c start processing
0.47	c start relation processing
0.47	c start cnf exporting
0.55	c parsing time : 0.303
0.55	c preprocessing time : 0.38
0.55	
0.55	c Nary constraints - conflicts : 96 supports : 0
0.55	c Binary constraints - conflicts : 0 supports :0
0.55	c max arity constraint : 3
0.55	c Max Tuples generated 0
0.55	c relations : 11
0.55	c relations BDD: 0
0.55	c vars : 51 - clauses :  100
0.55	
0.61	 
0.61	c --- Minisat Stats ---
0.61	 
0.62	c restarts              : 1
0.62	c conflicts             : 33             (inf /sec)
0.62	c decisions             : 79             (0.00 % random) (inf /sec)
0.62	c propagations          : 428            (inf /sec)
0.62	c conflict literals     : 125            (5.30 % deleted)
0.62	c Memory used           : 1.73 MB
0.62	c CPU time              : 0 s
0.62	
0.62	s SATISFIABLE
1.07	v 1 0 1 1 1 0 0 0 1 0 0 1 0 0 1 1 0 1 0 0 1 0 1 1 0 1 1 0 0 0 0 1 0 1 1 1 0 1 0 1 0 1 1 1 0 1 1 0 1 0

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/node16/watcher-243060-1168383703 -o ROOT/results/node16/solver-243060-1168383703 -C 1800 -M 900 /tmp/evaluation/243060-1168383703/galac.sh /tmp/evaluation/243060-1168383703/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: 0.48 0.70 0.81 5/88 27199
/proc/meminfo: memFree=1711408/2055920 swapFree=4191880/4192956
[pid=27198] ppid=27193 vsize=8652 CPUtime=0
/proc/27198/stat : 27198 (galac.sh) S 27193 27198 26840 0 -1 4194304 347 0 0 0 0 0 0 0 16 0 1 0 186765481 8859648 280 18446744073709551615 4194304 4520092 548682069344 18446744073709551615 231961979738 0 2 4096 73728 18446744071563181037 0 0 17 1 0 0
/proc/27198/statm: 2163 280 208 79 0 156 0
[pid=27200] ppid=27198 vsize=8688 CPUtime=0
/proc/27200/stat : 27200 (galac.sh) S 27198 27198 26840 0 -1 4194368 38 0 0 0 0 0 0 0 16 0 1 0 186765481 8896512 286 18446744073709551615 4194304 4520092 548682069344 18446744073709551615 231962542162 0 0 4096 73728 18446744071563648864 0 0 17 1 0 0
/proc/27200/statm: 2172 286 209 79 0 165 0
[pid=27201] ppid=27200 vsize=8728 CPUtime=0
/proc/27201/stat : 27201 (galac.sh) R 27200 27198 26840 0 -1 4194368 26 0 0 0 0 0 0 0 19 0 1 0 186765481 8937472 290 18446744073709551615 4194304 4520092 548682069344 18446744073709551615 231962373415 0 0 3674112 73728 0 0 0 17 1 0 0
/proc/27201/statm: 2182 290 209 79 0 175 0

[startup+0.107173 s]
/proc/loadavg: 0.48 0.70 0.81 5/88 27199
/proc/meminfo: memFree=1711408/2055920 swapFree=4191880/4192956
[pid=27198] ppid=27193 vsize=47552 CPUtime=0.01
/proc/27198/stat : 27198 (galac.sh) S 27193 27198 26840 0 -1 4194304 762 1704 0 0 0 0 0 1 17 0 1 0 186765481 48693248 363 18446744073709551615 4194304 4520092 548682069344 18446744073709551615 231961979738 0 2 4096 73728 18446744071563181037 0 0 17 0 0 0
/proc/27198/statm: 11888 363 245 79 0 218 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 47552

[startup+0.515093 s]
/proc/loadavg: 0.48 0.70 0.81 5/88 27199
/proc/meminfo: memFree=1711408/2055920 swapFree=4191880/4192956
[pid=27198] ppid=27193 vsize=47552 CPUtime=0.01
/proc/27198/stat : 27198 (galac.sh) S 27193 27198 26840 0 -1 4194304 762 1704 0 0 0 0 0 1 17 0 1 0 186765481 48693248 363 18446744073709551615 4194304 4520092 548682069344 18446744073709551615 231961979738 0 2 4096 73728 18446744071563181037 0 0 17 0 0 0
/proc/27198/statm: 11888 363 245 79 0 218 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 47552

Child status: 0
Real time (s): 1.07261
CPU time (s): 0.955854
CPU user time (s): 0.85287
CPU system time (s): 0.102984
CPU usage (%): 89.1144
Max. virtual memory (cumulated for all children) (KiB): 47552

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.85287
system time used= 0.102984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16534
page faults= 2
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 804
involuntary context switches= 577

runsolver used 0.002999 s user time and 0.006998 s system time

The end

Launcher Data (download as text)

Begin job on node16 on Tue Jan  9 23:01:45 UTC 2007


IDJOB= 243060
IDBENCH= 7439
FILE ID= node16/243060-1168383703

PBS_JOBID= 3522530

Free space on /tmp= 66520 MiB

BENCH NAME= HOME/pub/bench/CPAI06/dimacs/aim-50/aim-50-2-0-sat-3_ext.xml
COMMAND LINE= /tmp/evaluation/243060-1168383703/galac.sh /tmp/evaluation/243060-1168383703/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node16/watcher-243060-1168383703 -o ROOT/results/node16/solver-243060-1168383703 -C 1800 -M 900  /tmp/evaluation/243060-1168383703/galac.sh /tmp/evaluation/243060-1168383703/unknown.xml

META MD5SUM SOLVER= d8bf20eb49fe33822f00bab08f33d7fc
MD5SUM BENCH=  37e41ad1a7a89820b8d626e9d298f946

RANDOM SEED= 475799970

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		: 3000.220
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		: 3000.220
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:       1712088 kB
Buffers:         64368 kB
Cached:         176788 kB
SwapCached:        448 kB
Active:         199256 kB
Inactive:        90876 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1712088 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:            3232 kB
Writeback:           0 kB
Mapped:          67616 kB
Slab:            38312 kB
Committed_AS:  5720364 kB
PageTables:       2432 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= 66518 MiB



End job on node16 on Tue Jan  9 23:01:48 UTC 2007