Trace number 305797

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
adaptg2wsat+ 2007-02-08SAT 13.004 13.0106

General information on the benchmark

Namerandom/LargeSize/3SAT/v4000/
unif-k3-r4.2-v4000-c16800-S440063851-05.cnf
MD5SUM5b6d3b78fcf9a67b709c845674e3c629
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark2.36164
Satisfiable
(Un)Satisfiability was proved
Number of variables3999
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 (download as text)

12.90/13.00	c try 1 flip j 8179810
12.90/13.00	c A solution is found
12.90/13.00	s SATISFIABLE
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12.90/13.00	v 0 
12.90/13.00	c Done (mycputime is 0.001 seconds)

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node21/watcher-305797-1172085888 -o ROOT/results/node21/solver-305797-1172085888 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/305797-1172085888/adaptg2wsat+ /tmp/evaluation/305797-1172085888/instance-305797-1172085888.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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: 0.92 0.98 0.99 3/77 16487
/proc/meminfo: memFree=1059272/2055920 swapFree=4147488/4192956
[pid=16487] ppid=16485 vsize=215024 CPUtime=0
/proc/16487/stat : 16487 (adaptg2wsat+) R 16485 16487 15798 0 -1 4194304 97 0 0 0 0 0 0 0 18 0 1 0 228542759 220184576 81 18446744073709551615 134512640 134930140 4294956704 18446744073709551615 134694333 0 0 4096 0 0 0 0 17 1 0 0
/proc/16487/statm: 53756 81 38 101 0 53262 0

[startup+0.106701 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 16487
/proc/meminfo: memFree=1059272/2055920 swapFree=4147488/4192956
[pid=16487] ppid=16485 vsize=218156 CPUtime=0.1
/proc/16487/stat : 16487 (adaptg2wsat+) R 16485 16487 15798 0 -1 4194304 703 0 0 0 10 0 0 0 18 0 1 0 228542759 223391744 683 18446744073709551615 134512640 134930140 4294956704 18446744073709551615 134547824 0 0 4096 0 0 0 0 17 1 0 0
/proc/16487/statm: 54539 683 41 101 0 54045 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 218156

[startup+0.514746 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 16487
/proc/meminfo: memFree=1059272/2055920 swapFree=4147488/4192956
[pid=16487] ppid=16485 vsize=218156 CPUtime=0.51
/proc/16487/stat : 16487 (adaptg2wsat+) R 16485 16487 15798 0 -1 4194304 703 0 0 0 51 0 0 0 21 0 1 0 228542759 223391744 683 18446744073709551615 134512640 134930140 4294956704 18446744073709551615 134551888 0 0 4096 0 0 0 0 17 1 0 0
/proc/16487/statm: 54539 683 41 101 0 54045 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 218156

[startup+1.33484 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 16488
/proc/meminfo: memFree=1056512/2055920 swapFree=4147488/4192956
[pid=16487] ppid=16485 vsize=218156 CPUtime=1.33
/proc/16487/stat : 16487 (adaptg2wsat+) R 16485 16487 15798 0 -1 4194304 703 0 0 0 133 0 0 0 25 0 1 0 228542759 223391744 683 18446744073709551615 134512640 134930140 4294956704 18446744073709551615 134546565 0 0 4096 0 0 0 0 17 1 0 0
/proc/16487/statm: 54539 683 41 101 0 54045 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 218156

[startup+2.97101 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 16488
/proc/meminfo: memFree=1056384/2055920 swapFree=4147488/4192956
[pid=16487] ppid=16485 vsize=218156 CPUtime=2.96
/proc/16487/stat : 16487 (adaptg2wsat+) R 16485 16487 15798 0 -1 4194304 703 0 0 0 296 0 0 0 25 0 1 0 228542759 223391744 683 18446744073709551615 134512640 134930140 4294956704 18446744073709551615 134546298 0 0 4096 0 0 0 0 17 1 0 0
/proc/16487/statm: 54539 683 41 101 0 54045 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 218156

[startup+6.24737 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 16488
/proc/meminfo: memFree=1056128/2055920 swapFree=4147488/4192956
[pid=16487] ppid=16485 vsize=218156 CPUtime=6.24
/proc/16487/stat : 16487 (adaptg2wsat+) R 16485 16487 15798 0 -1 4194304 703 0 0 0 624 0 0 0 25 0 1 0 228542759 223391744 683 18446744073709551615 134512640 134930140 4294956704 18446744073709551615 134546514 0 0 4096 0 0 0 0 17 1 0 0
/proc/16487/statm: 54539 683 41 101 0 54045 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 218156

[startup+12.7031 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 16488
/proc/meminfo: memFree=1056128/2055920 swapFree=4147488/4192956
[pid=16487] ppid=16485 vsize=218156 CPUtime=12.69
/proc/16487/stat : 16487 (adaptg2wsat+) R 16485 16487 15798 0 -1 4194304 703 0 0 0 1269 0 0 0 25 0 1 0 228542759 223391744 683 18446744073709551615 134512640 134930140 4294956704 18446744073709551615 134546563 0 0 4096 0 0 0 0 17 1 0 0
/proc/16487/statm: 54539 683 41 101 0 54045 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 218156

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

[startup+12.9071 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 16488
/proc/meminfo: memFree=1056128/2055920 swapFree=4147488/4192956
[pid=16487] ppid=16485 vsize=218156 CPUtime=12.9
/proc/16487/stat : 16487 (adaptg2wsat+) R 16485 16487 15798 0 -1 4194304 703 0 0 0 1290 0 0 0 25 0 1 0 228542759 223391744 683 18446744073709551615 134512640 134930140 4294956704 18446744073709551615 134545596 0 0 4096 0 0 0 0 17 1 0 0
/proc/16487/statm: 54539 683 41 101 0 54045 0
Current children cumulated CPU time (s) 12.9
Current children cumulated vsize (KiB) 218156

[startup+13.0091 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 16488
/proc/meminfo: memFree=1056128/2055920 swapFree=4147488/4192956
[pid=16487] ppid=16485 vsize=0 CPUtime=13
/proc/16487/stat : 16487 (adaptg2wsat+) D 16485 16487 15798 0 -1 4194308 715 0 0 0 1300 0 0 0 16 0 1 0 228542759 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 18446744072100051646 0 0 17 1 0 0
/proc/16487/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 13
Current children cumulated vsize (KiB) 0

Child status: 10
Real time (s): 13.0106
CPU time (s): 13.004
CPU user time (s): 13.001
CPU system time (s): 0.002999
CPU usage (%): 99.9492
Max. virtual memory (cumulated for all children) (KiB): 218156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 13.001
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= 715
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= 11
involuntary context switches= 18

runsolver used 0.019996 second user time and 0.031995 second system time

The end

Launcher Data (download as text)

Begin job on node21 on Wed Feb 21 19:24:48 UTC 2007

IDJOB= 305797
IDBENCH= 20165
IDSOLVER= 124
FILE ID= node21/305797-1172085888

PBS_JOBID= 3892825

Free space on /tmp= 66558 MiB

SOLVER NAME= adaptg2wsat+ 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/LargeSize/3SAT/v4000/unif-k3-r4.2-v4000-c16800-S440063851-05.cnf
COMMAND LINE= /tmp/evaluation/305797-1172085888/adaptg2wsat+ /tmp/evaluation/305797-1172085888/instance-305797-1172085888.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node21/watcher-305797-1172085888 -o ROOT/results/node21/solver-305797-1172085888 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/305797-1172085888/adaptg2wsat+ /tmp/evaluation/305797-1172085888/instance-305797-1172085888.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  5b6d3b78fcf9a67b709c845674e3c629

RANDOM SEED= 544463201

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node21.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		: 3000.245
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		: 3000.245
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:       1059680 kB
Buffers:         43120 kB
Cached:         839980 kB
SwapCached:      14024 kB
Active:         165024 kB
Inactive:       741768 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1059680 kB
SwapTotal:     4192956 kB
SwapFree:      4147488 kB
Dirty:            6424 kB
Writeback:           0 kB
Mapped:          30104 kB
Slab:            75208 kB
Committed_AS:   713112 kB
PageTables:       1656 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= 66558 MiB

End job on node21 on Wed Feb 21 19:25:01 UTC 2007