Trace number 369567

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
gnovelty+ 2007-02-08SAT 0.437933 0.439067

General information on the benchmark

Namerandom/OnTreshold/3SAT/v550/
unif-k3-r4.26-v550-c2343-S1166224100-13.SAT.shuffled.cnf
MD5SUM8145f79563f8728b1e47a8c34d5efd7e
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.044992
Satisfiable
(Un)Satisfiability was proved
Number of variables550
Number of clauses2343
Sum of the clauses size7029
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32343
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.01	c +------------------------------+
0.00/0.01	c | gNovelty+, version 1.0       |
0.00/0.01	c +------------------------------+
0.00/0.01	c gnovelty+ -h for help
0.00/0.01	c 
0.00/0.01	c Problem instance: numAtoms = 550, numClauses = 2343, numLiterals = 7029
0.00/0.01	c General parameters: seed=393504946, cutoff=100000, targetCost = 0, print solution: yes
0.00/0.01	c gNovelty+ parameters: noise = 0, walkprob = 1, smoothprob = 40
0.00/0.01	c tries = 1
0.00/0.01	c 
0.39/0.43	s SATISFIABLE
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0.39/0.43	c Done in 0.410000 seconds

Verifier Data (download as text)

OK

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node20/watcher-369567-1177545096 -o ROOT/results/node20/solver-369567-1177545096 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/369567-1177545096/gnovelty+ /tmp/evaluation/369567-1177545096/instance-369567-1177545096.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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: 0.00 0.00 0.18 3/77 25087
/proc/meminfo: memFree=1778656/2055920 swapFree=4154124/4192956
[pid=25087] ppid=25085 vsize=244700 CPUtime=0
/proc/25087/stat : 25087 (gnovelty+) R 25085 25087 25033 0 -1 4194304 850 0 0 0 0 0 0 0 18 0 1 0 202427035 250572800 836 18446744073709551615 134512640 134921880 4294956672 18446744073709551615 134518504 0 0 4096 0 0 0 0 17 1 0 0
/proc/25087/statm: 61175 842 39 99 0 61074 0

[startup+0.0113271 s]
/proc/loadavg: 0.00 0.00 0.18 3/77 25087
/proc/meminfo: memFree=1778656/2055920 swapFree=4154124/4192956
[pid=25087] ppid=25085 vsize=252512 CPUtime=0
/proc/25087/stat : 25087 (gnovelty+) R 25085 25087 25033 0 -1 4194304 1269 0 0 0 0 0 0 0 18 0 1 0 202427035 258572288 1254 18446744073709551615 134512640 134921880 4294956672 18446744073709551615 134518864 0 0 4096 0 0 0 0 17 1 0 0
/proc/25087/statm: 63128 1259 41 99 0 63027 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 252512

[startup+0.101344 s]
/proc/loadavg: 0.00 0.00 0.18 3/77 25087
/proc/meminfo: memFree=1778656/2055920 swapFree=4154124/4192956
[pid=25087] ppid=25085 vsize=252512 CPUtime=0.09
/proc/25087/stat : 25087 (gnovelty+) R 25085 25087 25033 0 -1 4194304 2092 0 0 0 9 0 0 0 18 0 1 0 202427035 258572288 2077 18446744073709551615 134512640 134921880 4294956672 18446744073709551615 134513743 0 0 4096 0 0 0 0 17 1 0 0
/proc/25087/statm: 63128 2077 44 99 0 63027 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 252512

[startup+0.301384 s]
/proc/loadavg: 0.00 0.00 0.18 3/77 25087
/proc/meminfo: memFree=1778656/2055920 swapFree=4154124/4192956
[pid=25087] ppid=25085 vsize=252512 CPUtime=0.29
/proc/25087/stat : 25087 (gnovelty+) R 25085 25087 25033 0 -1 4194304 2092 0 0 0 29 0 0 0 19 0 1 0 202427035 258572288 2077 18446744073709551615 134512640 134921880 4294956672 18446744073709551615 134514991 0 0 4096 0 0 0 0 17 1 0 0
/proc/25087/statm: 63128 2077 44 99 0 63027 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 252512

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

[startup+0.401404 s]
/proc/loadavg: 0.00 0.00 0.18 3/77 25087
/proc/meminfo: memFree=1778656/2055920 swapFree=4154124/4192956
[pid=25087] ppid=25085 vsize=252512 CPUtime=0.39
/proc/25087/stat : 25087 (gnovelty+) R 25085 25087 25033 0 -1 4194304 2092 0 0 0 39 0 0 0 19 0 1 0 202427035 258572288 2077 18446744073709551615 134512640 134921880 4294956672 18446744073709551615 134513271 0 0 4096 0 0 0 0 17 1 0 0
/proc/25087/statm: 63128 2077 44 99 0 63027 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 252512

Child status: 10
Real time (s): 0.439067
CPU time (s): 0.437933
CPU user time (s): 0.425935
CPU system time (s): 0.011998
CPU usage (%): 99.7418
Max. virtual memory (cumulated for all children) (KiB): 252512

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.425935
system time used= 0.011998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2102
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= 8
involuntary context switches= 0

runsolver used 0.002999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node20 on Wed Apr 25 23:51:37 UTC 2007

IDJOB= 369567
IDBENCH= 19965
IDSOLVER= 176
FILE ID= node20/369567-1177545096

PBS_JOBID= 4696314

Free space on /tmp= 66471 MiB

SOLVER NAME= gnovelty+ 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v550/unif-k3-r4.26-v550-c2343-S1166224100-13.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/369567-1177545096/gnovelty+ /tmp/evaluation/369567-1177545096/instance-369567-1177545096.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node20/watcher-369567-1177545096 -o ROOT/results/node20/solver-369567-1177545096 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/369567-1177545096/gnovelty+ /tmp/evaluation/369567-1177545096/instance-369567-1177545096.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  8145f79563f8728b1e47a8c34d5efd7e

RANDOM SEED= 996188737

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node20.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		: 3000.265
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		: 3000.265
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:       1779128 kB
Buffers:         40540 kB
Cached:         168364 kB
SwapCached:      18148 kB
Active:         122048 kB
Inactive:       111320 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1779128 kB
SwapTotal:     4192956 kB
SwapFree:      4154124 kB
Dirty:             960 kB
Writeback:           0 kB
Mapped:          29700 kB
Slab:            29000 kB
Committed_AS:  2069284 kB
PageTables:       1744 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= 66471 MiB

End job on node20 on Wed Apr 25 23:51:38 UTC 2007