Trace number 1628806

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
adaptg2wsat2009++ 2009-03-23SAT 0.590909 0.593009

General information on the benchmark

NameRANDOM/LARGE/3SAT/UNKNOWN/4000/
unif-k3-r4.2-v4000-c16800-S1271018787-049.cnf
MD5SUMa2535194d868b4e0014d35a0421df6ea
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.590909
Satisfiable
(Un)Satisfiability was proved
Number of variables4000
Number of clauses16800
Sum of the clauses size50400
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 316800
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data

0.49/0.59	c 0 clauses are redundant and removed
0.49/0.59	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.49/0.59	c 0 vars are fixed and 0 clauses are removed after lookahead
0.49/0.59	c initial seed is 494832370
0.49/0.59	c try 1 flip j 282757 walk 244748 seed 18001975
0.49/0.59	c A solution is found
0.49/0.59	s SATISFIABLE
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0.49/0.59	v 0 
0.49/0.59	c Done (mycputime is 0.520 seconds)

Verifier Data

OK

Watcher Data

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1628806-1240035372/watcher-1628806-1240035372 -o /tmp/evaluation-result-1628806-1240035372/solver-1628806-1240035372 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/adaptg2wsat2009++ HOME/instance-1628806-1240035372.cnf 494832370 

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): 6000 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: 0.93 0.41 0.15 3/64 20166
/proc/meminfo: memFree=1042104/2055920 swapFree=4192956/4192956
[pid=20166] ppid=20164 vsize=415800 CPUtime=0
/proc/20166/stat : 20166 (adaptg2wsat2009) R 20164 20166 20065 0 -1 4194304 93 0 0 0 0 0 0 0 20 0 1 0 31571936 425779200 77 1992294400 134512640 135107411 4294956208 18446744073709551615 134591718 0 0 4096 0 0 0 0 17 1 0 0
/proc/20166/statm: 103950 77 48 145 0 102826 0

[startup+0.087281 s]
/proc/loadavg: 0.93 0.41 0.15 3/64 20166
/proc/meminfo: memFree=1042104/2055920 swapFree=4192956/4192956
[pid=20166] ppid=20164 vsize=417664 CPUtime=0.08
/proc/20166/stat : 20166 (adaptg2wsat2009) R 20164 20166 20065 0 -1 4194304 795 0 0 0 8 0 0 0 20 0 1 0 31571936 427687936 778 1992294400 134512640 135107411 4294956208 18446744073709551615 134531600 0 0 4096 0 0 0 0 17 1 0 0
/proc/20166/statm: 104416 778 59 145 0 103292 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 417664

[startup+0.101282 s]
/proc/loadavg: 0.93 0.41 0.15 3/64 20166
/proc/meminfo: memFree=1042104/2055920 swapFree=4192956/4192956
[pid=20166] ppid=20164 vsize=417664 CPUtime=0.09
/proc/20166/stat : 20166 (adaptg2wsat2009) R 20164 20166 20065 0 -1 4194304 795 0 0 0 9 0 0 0 20 0 1 0 31571936 427687936 778 1992294400 134512640 135107411 4294956208 18446744073709551615 134531856 0 0 4096 0 0 0 0 17 1 0 0
/proc/20166/statm: 104416 778 59 145 0 103292 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 417664

[startup+0.301321 s]
/proc/loadavg: 0.93 0.41 0.15 3/64 20166
/proc/meminfo: memFree=1042104/2055920 swapFree=4192956/4192956
[pid=20166] ppid=20164 vsize=417664 CPUtime=0.29
/proc/20166/stat : 20166 (adaptg2wsat2009) R 20164 20166 20065 0 -1 4194304 795 0 0 0 29 0 0 0 21 0 1 0 31571936 427687936 778 1992294400 134512640 135107411 4294956208 18446744073709551615 134547599 0 0 4096 0 0 0 0 17 1 0 0
/proc/20166/statm: 104416 778 59 145 0 103292 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 417664

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

[startup+0.501361 s]
/proc/loadavg: 0.93 0.41 0.15 3/64 20166
/proc/meminfo: memFree=1042104/2055920 swapFree=4192956/4192956
[pid=20166] ppid=20164 vsize=417664 CPUtime=0.49
/proc/20166/stat : 20166 (adaptg2wsat2009) R 20164 20166 20065 0 -1 4194304 795 0 0 0 49 0 0 0 23 0 1 0 31571936 427687936 778 1992294400 134512640 135107411 4294956208 18446744073709551615 134531600 0 0 4096 0 0 0 0 17 1 0 0
/proc/20166/statm: 104416 778 59 145 0 103292 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 417664

Child status: 10
Real time (s): 0.593009
CPU time (s): 0.590909
CPU user time (s): 0.58791
CPU system time (s): 0.002999
CPU usage (%): 99.6459
Max. virtual memory (cumulated for all children) (KiB): 417664

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.58791
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= 808
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= 1
involuntary context switches= 10

runsolver used 0.002999 second user time and 0.004999 second system time

The end

Launcher Data

Begin job on node1 at 2009-04-18 08:16:12
IDJOB=1628806
IDBENCH=70340
IDSOLVER=584
FILE ID=node1/1628806-1240035372
PBS_JOBID= 9159015
Free space on /tmp= 66364 MiB

SOLVER NAME= adaptg2wsat2009++ 2009-03-23
BENCH NAME= SAT09/RANDOM/LARGE/3SAT/UNKNOWN/4000/unif-k3-r4.2-v4000-c16800-S1271018787-049.cnf
COMMAND LINE= HOME/adaptg2wsat2009++ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1628806-1240035372/watcher-1628806-1240035372 -o /tmp/evaluation-result-1628806-1240035372/solver-1628806-1240035372 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/adaptg2wsat2009++ HOME/instance-1628806-1240035372.cnf 494832370

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= a2535194d868b4e0014d35a0421df6ea
RANDOM SEED=494832370

node1.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.259
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	: 5931.00
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		: 3000.259
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:       1042584 kB
Buffers:         82532 kB
Cached:         855664 kB
SwapCached:          0 kB
Active:         267724 kB
Inactive:       684428 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1042584 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            4940 kB
Writeback:           0 kB
Mapped:          23716 kB
Slab:            47152 kB
Committed_AS:   154676 kB
PageTables:       1436 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= 66360 MiB
End job on node1 at 2009-04-18 08:16:13