Trace number 423982

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 0.094985 0.097222

General information on the benchmark

Namerandom/2+p/p0.9/v630/
unif2p-p0.9-v630-c2280-S1244126495-18-SAT.cnf
MD5SUM7170ef62ab1f0b3de97654e24bebe902
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.013997
Satisfiable
(Un)Satisfiability was proved
Number of variables630
Number of clauses2280
Sum of the clauses size6612
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2228
Number of clauses of size 32052
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.03/0.07	c +------------------------------+
0.03/0.07	c | R+AdaptNovelty+, version 1.5 |
0.03/0.07	c +------------------------------+
0.03/0.07	c ranov -h for help
0.03/0.07	c 
0.03/0.07	c Problem instance: numAtoms = 630, numClauses = 2325, numLiterals = 6740
0.03/0.07	c General parameters: seed=2019628483, cutoff=100000, targetCost = 0, print solution: yes
0.03/0.07	c R+AdaptNovelty+ parameters: noise = 0, walkprob = 1
0.03/0.07	c tries = 1
0.03/0.07	c 
0.03/0.08	s SATISFIABLE
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0.03/0.08	v -630
0.03/0.08	v 0
0.03/0.08	c Done in 0.010000 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/node25/watcher-423982-1177831395 -o ROOT/results/node25/solver-423982-1177831395 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/423982-1177831395/ranov /tmp/evaluation/423982-1177831395/instance-423982-1177831395.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: 0.85 1.14 1.13 3/64 10639
/proc/meminfo: memFree=1672672/2055920 swapFree=4182908/4192956
[pid=10639] ppid=10637 vsize=319884 CPUtime=0
/proc/10639/stat : 10639 (ranov) R 10637 10639 9199 0 -1 4194304 834 0 0 0 0 0 0 0 18 0 1 0 231056585 327561216 820 18446744073709551615 134512640 134914624 4294956672 18446744073709551615 134528292 0 0 4096 0 0 0 0 17 1 0 0
/proc/10639/statm: 79971 827 30 98 0 79870 0

[startup+0.033925 s]
/proc/loadavg: 0.85 1.14 1.13 3/64 10639
/proc/meminfo: memFree=1672672/2055920 swapFree=4182908/4192956
[pid=10639] ppid=10637 vsize=320032 CPUtime=0.03
/proc/10639/stat : 10639 (ranov) R 10637 10639 9199 0 -1 4194304 5657 0 0 0 1 2 0 0 18 0 1 0 231056585 327712768 5642 18446744073709551615 134512640 134914624 4294956672 18446744073709551615 134529408 0 0 4096 0 0 0 0 17 1 0 0
/proc/10639/statm: 80008 5649 38 98 0 79907 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 320032

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

[startup+0.033925 s]
/proc/loadavg: 0.85 1.14 1.13 3/64 10639
/proc/meminfo: memFree=1672672/2055920 swapFree=4182908/4192956
[pid=10639] ppid=10637 vsize=320032 CPUtime=0.03
/proc/10639/stat : 10639 (ranov) R 10637 10639 9199 0 -1 4194304 5657 0 0 0 1 2 0 0 18 0 1 0 231056585 327712768 5642 18446744073709551615 134512640 134914624 4294956672 18446744073709551615 134529408 0 0 4096 0 0 0 0 17 1 0 0
/proc/10639/statm: 80008 5649 38 98 0 79907 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 320032

Child status: 10
Real time (s): 0.097222
CPU time (s): 0.094985
CPU user time (s): 0.038994
CPU system time (s): 0.055991
CPU usage (%): 97.6991
Max. virtual memory (cumulated for all children) (KiB): 320032

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.038994
system time used= 0.055991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 11910
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 0.004999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node25 on Sun Apr 29 07:23:15 UTC 2007

IDJOB= 423982
IDBENCH= 20290
IDSOLVER= 193
FILE ID= node25/423982-1177831395

PBS_JOBID= 4718268

Free space on /tmp= 66564 MiB

SOLVER NAME= ranov 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v630/unif2p-p0.9-v630-c2280-S1244126495-18-SAT.cnf
COMMAND LINE= /tmp/evaluation/423982-1177831395/ranov /tmp/evaluation/423982-1177831395/instance-423982-1177831395.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node25/watcher-423982-1177831395 -o ROOT/results/node25/solver-423982-1177831395 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/423982-1177831395/ranov /tmp/evaluation/423982-1177831395/instance-423982-1177831395.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  7170ef62ab1f0b3de97654e24bebe902

RANDOM SEED= 961591285

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node25.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		: 3000.261
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		: 3000.261
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:       1673080 kB
Buffers:         43404 kB
Cached:         280408 kB
SwapCached:       4220 kB
Active:         189460 kB
Inactive:       145184 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1673080 kB
SwapTotal:     4192956 kB
SwapFree:      4182908 kB
Dirty:            1088 kB
Writeback:           0 kB
Mapped:          16592 kB
Slab:            34216 kB
Committed_AS:  4288092 kB
PageTables:       1476 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 node25 on Sun Apr 29 07:23:15 UTC 2007