Trace number 422437

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
Siege V4? 0.003998 0.00690994

General information on the benchmark

Nameindustrial/narain/
clauses-8.cnf
MD5SUM74bd745b1c68e4deddfa063e58b6b54d
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark3709.38
Satisfiable
(Un)Satisfiability was proved
Number of variables1461771
Number of clauses5687554
Sum of the clauses size14147618
Maximum clause length601
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 24325673
Number of clauses of size 3961281
Number of clauses of size 411051
Number of clauses of size 5354960
Number of clauses of size over 534588

Solver Data (download as text)

0.00/0.00	c Siege V4 output adapted for the SAT 2007 I/O conformance
0.00/0.00	c 
0.00/0.00	c [ filemap ]
0.00/0.00	c [ extract ]
0.00/0.00	c 
0.00/0.00	c failed: efficiency
0.00/0.00	s UNKNOWN

Verifier Data (download as text)

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer: UNKNOWN

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node5/watcher-422437-1178598920 -o ROOT/results/node5/solver-422437-1178598920 -C 10000 -W 15000 -M 1800 --output-limit 1,15 /tmp/evaluation/422437-1178598920/siegeadapter.pl /tmp/evaluation/422437-1178598920/instance-422437-1178598920.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 15000 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: 1.03 1.01 1.00 3/77 23858
/proc/meminfo: memFree=1670784/2055920 swapFree=4150040/4192956
[pid=23858] ppid=23856 vsize=12268 CPUtime=0
/proc/23858/stat : 23858 (siegeadapter.pl) R 23856 23858 23796 0 -1 4194304 403 0 0 0 0 0 0 0 18 0 1 0 335930406 12562432 352 18446744073709551615 4194304 4206940 548682069264 18446744073709551615 226922377314 0 0 4224 0 0 0 0 17 1 0 0
/proc/23858/statm: 3067 353 272 3 0 167 0
[pid=23859] ppid=23858 vsize=0 CPUtime=0
/proc/23859/stat : 23859 (siege_v4) D 23858 23858 23796 0 -1 4 96 0 0 0 0 0 0 0 18 0 1 0 335930407 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 18446744072100051646 0 0 17 1 0 0
/proc/23859/statm: 0 0 0 0 0 0 0

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

Child status: 0
Real time (s): 0.00690994
CPU time (s): 0.003998
CPU user time (s): 0.000999
CPU system time (s): 0.002999
CPU usage (%): 57.8587
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.000999
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 537
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= 14
involuntary context switches= 1

runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node5 on Tue May  8 04:35:28 UTC 2007

IDJOB= 422437
IDBENCH= 20506
IDSOLVER= 190
FILE ID= node5/422437-1178598920

PBS_JOBID= 5217762

Free space on /tmp= 66452 MiB

SOLVER NAME= Siege V4
BENCH NAME= HOME/pub/bench/SAT07/industrial/narain/clauses-8.cnf
COMMAND LINE= /tmp/evaluation/422437-1178598920/siegeadapter.pl /tmp/evaluation/422437-1178598920/instance-422437-1178598920.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node5/watcher-422437-1178598920 -o ROOT/results/node5/solver-422437-1178598920 -C 10000 -W 15000 -M 1800 --output-limit 1,15  /tmp/evaluation/422437-1178598920/siegeadapter.pl /tmp/evaluation/422437-1178598920/instance-422437-1178598920.cnf            

META MD5SUM SOLVER= 69ef6d521077f526586997d0c4a9a904
MD5SUM BENCH=  74bd745b1c68e4deddfa063e58b6b54d

RANDOM SEED= 577293537

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB

Linux node5.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		: 3000.232
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		: 3000.232
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:       1671320 kB
Buffers:         27972 kB
Cached:         282704 kB
SwapCached:      10964 kB
Active:         173796 kB
Inactive:       159548 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1671320 kB
SwapTotal:     4192956 kB
SwapFree:      4150040 kB
Dirty:          115340 kB
Writeback:           0 kB
Mapped:          29536 kB
Slab:            36828 kB
Committed_AS: 13912772 kB
PageTables:       1720 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= 66452 MiB

End job on node5 on Tue May  8 04:35:28 UTC 2007