Trace number 423928

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
ranov 2007-02-08SAT 0.164974 0.16836

General information on the benchmark

Namerandom/2+p/p0.9/v990/
unif2p-p0.9-v990-c3583-S461590508-14-SAT.cnf
MD5SUMf2855b2d9ccbc6dfadefd43cb9f6aec1
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.071988
Satisfiable
(Un)Satisfiability was proved
Number of variables990
Number of clauses3582
Sum of the clauses size10388
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2358
Number of clauses of size 33224
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.08	c +------------------------------+
0.00/0.08	c | R+AdaptNovelty+, version 1.5 |
0.00/0.08	c +------------------------------+
0.00/0.08	c ranov -h for help
0.00/0.08	c 
0.00/0.08	c Problem instance: numAtoms = 990, numClauses = 3628, numLiterals = 10524
0.00/0.08	c General parameters: seed=1525581526, cutoff=100000, targetCost = 0, print solution: yes
0.00/0.08	c R+AdaptNovelty+ parameters: noise = 0, walkprob = 1
0.00/0.08	c tries = 1
0.00/0.08	c 
0.09/0.15	s SATISFIABLE
0.09/0.15	v -1
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0.09/0.16	v 0
0.09/0.16	c Done in 0.080000 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/node12/watcher-423928-1177830901 -o ROOT/results/node12/solver-423928-1177830901 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/423928-1177830901/ranov /tmp/evaluation/423928-1177830901/instance-423928-1177830901.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: 0.91 0.98 0.99 3/77 22617
/proc/meminfo: memFree=1554232/2055920 swapFree=4160076/4192956
[pid=22617] ppid=22615 vsize=319884 CPUtime=0
/proc/22617/stat : 22617 (ranov) R 22615 22617 21451 0 -1 4194304 860 0 0 0 0 0 0 0 18 0 1 0 259127472 327561216 846 18446744073709551615 134512640 134914624 4294956672 18446744073709551615 134528292 0 0 4096 0 0 0 0 17 1 0 0
/proc/22617/statm: 79971 852 30 98 0 79870 0

[startup+0.088012 s]
/proc/loadavg: 0.91 0.98 0.99 3/77 22617
/proc/meminfo: memFree=1554232/2055920 swapFree=4160076/4192956
[pid=22617] ppid=22615 vsize=328012 CPUtime=0.08
/proc/22617/stat : 22617 (ranov) R 22615 22617 21451 0 -1 4194304 11944 0 0 0 4 4 0 0 18 0 1 0 259127472 335884288 11929 18446744073709551615 134512640 134914624 4294956672 18446744073709551615 134514910 0 0 4096 0 0 0 0 17 1 0 0
/proc/22617/statm: 82003 11929 42 98 0 81902 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 328012

[startup+0.102012 s]
/proc/loadavg: 0.91 0.98 0.99 3/77 22617
/proc/meminfo: memFree=1554232/2055920 swapFree=4160076/4192956
[pid=22617] ppid=22615 vsize=328012 CPUtime=0.09
/proc/22617/stat : 22617 (ranov) R 22615 22617 21451 0 -1 4194304 11944 0 0 0 5 4 0 0 18 0 1 0 259127472 335884288 11929 18446744073709551615 134512640 134914624 4294956672 18446744073709551615 134514905 0 0 4096 0 0 0 0 17 1 0 0
/proc/22617/statm: 82003 11929 42 98 0 81902 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 328012

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

Child status: 10
Real time (s): 0.16836
CPU time (s): 0.164974
CPU user time (s): 0.110983
CPU system time (s): 0.053991
CPU usage (%): 97.9889
Max. virtual memory (cumulated for all children) (KiB): 328012

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.110983
system time used= 0.053991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 11955
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= 10
involuntary context switches= 1

runsolver used 0.001999 second user time and 0.010998 second system time

The end

Launcher Data (download as text)

Begin job on node12 on Sun Apr 29 07:15:01 UTC 2007

IDJOB= 423928
IDBENCH= 20251
IDSOLVER= 193
FILE ID= node12/423928-1177830901

PBS_JOBID= 4718237

Free space on /tmp= 66564 MiB

SOLVER NAME= ranov 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v990/unif2p-p0.9-v990-c3583-S461590508-14-SAT.cnf
COMMAND LINE= /tmp/evaluation/423928-1177830901/ranov /tmp/evaluation/423928-1177830901/instance-423928-1177830901.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node12/watcher-423928-1177830901 -o ROOT/results/node12/solver-423928-1177830901 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/423928-1177830901/ranov /tmp/evaluation/423928-1177830901/instance-423928-1177830901.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  f2855b2d9ccbc6dfadefd43cb9f6aec1

RANDOM SEED= 16271070

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node12.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		: 3000.239
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		: 3000.239
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:       1554640 kB
Buffers:         45960 kB
Cached:         359052 kB
SwapCached:      11828 kB
Active:         274384 kB
Inactive:       154228 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1554640 kB
SwapTotal:     4192956 kB
SwapFree:      4160076 kB
Dirty:             976 kB
Writeback:           0 kB
Mapped:          30368 kB
Slab:            58224 kB
Committed_AS:  6203184 kB
PageTables:       1792 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= 66564 MiB

End job on node12 on Sun Apr 29 07:15:01 UTC 2007