Trace number 1785582

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
clasp 1.2.0-SAT09-32UNSAT 1.17882 1.17978

General information on the benchmark

NameCRAFTED/sgen/unsat/
sgen1-unsat-61-100.cnf
MD5SUM43b8e7efe061e21db6b4c047915ae87c
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.10683
Satisfiable
(Un)Satisfiability was proved
Number of variables61
Number of clauses132
Sum of the clauses size396
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3132
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

1.10/1.17	c clasp version 1.2.0-SAT09 
1.10/1.17	c Reading from ...919845/instance-1785582-1241919845.cnf
1.10/1.17	c Reading      : Done(0.000s)
1.10/1.17	c Preprocessing: |-Done(0.000s)
1.10/1.17	c Solving...
1.10/1.17	
1.10/1.17	c Models    : 0     
1.10/1.17	c Time         : 1.170s (Solve: 1.170s)
1.10/1.17	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1785582-1241919845/watcher-1785582-1241919845 -o /tmp/evaluation-result-1785582-1241919845/solver-1785582-1241919845 -C 5000 -W 6000 -M 1800 HOME/clasp --file=HOME/instance-1785582-1241919845.cnf --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512 

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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.92 0.98 0.91 3/64 27314
/proc/meminfo: memFree=1661496/2055920 swapFree=4121000/4192956
[pid=27314] ppid=27312 vsize=1696 CPUtime=0
/proc/27314/stat : 27314 (clasp) R 27312 27314 27068 0 -1 4194304 217 0 0 0 0 0 0 0 18 0 1 0 220017727 1736704 201 1992294400 134512640 136057169 4294956160 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27314/statm: 424 201 180 377 0 44 0

[startup+0.077009 s]
/proc/loadavg: 0.92 0.98 0.91 3/64 27314
/proc/meminfo: memFree=1661496/2055920 swapFree=4121000/4192956
[pid=27314] ppid=27312 vsize=1696 CPUtime=0.07
/proc/27314/stat : 27314 (clasp) R 27312 27314 27068 0 -1 4194304 220 0 0 0 7 0 0 0 18 0 1 0 220017727 1736704 204 1992294400 134512640 136057169 4294956160 18446744073709551615 134823938 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27314/statm: 424 204 180 377 0 44 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1696

[startup+0.101011 s]
/proc/loadavg: 0.92 0.98 0.91 3/64 27314
/proc/meminfo: memFree=1661496/2055920 swapFree=4121000/4192956
[pid=27314] ppid=27312 vsize=1696 CPUtime=0.09
/proc/27314/stat : 27314 (clasp) R 27312 27314 27068 0 -1 4194304 220 0 0 0 9 0 0 0 18 0 1 0 220017727 1736704 204 1992294400 134512640 136057169 4294956160 18446744073709551615 134637467 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27314/statm: 424 204 180 377 0 44 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1696

[startup+0.301034 s]
/proc/loadavg: 0.92 0.98 0.91 3/64 27314
/proc/meminfo: memFree=1661496/2055920 swapFree=4121000/4192956
[pid=27314] ppid=27312 vsize=1696 CPUtime=0.29
/proc/27314/stat : 27314 (clasp) R 27312 27314 27068 0 -1 4194304 225 0 0 0 29 0 0 0 19 0 1 0 220017727 1736704 209 1992294400 134512640 136057169 4294956160 18446744073709551615 134615835 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27314/statm: 424 209 180 377 0 44 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1696

[startup+0.701079 s]
/proc/loadavg: 0.92 0.98 0.91 3/64 27314
/proc/meminfo: memFree=1661496/2055920 swapFree=4121000/4192956
[pid=27314] ppid=27312 vsize=1696 CPUtime=0.69
/proc/27314/stat : 27314 (clasp) R 27312 27314 27068 0 -1 4194304 228 0 0 0 69 0 0 0 22 0 1 0 220017727 1736704 212 1992294400 134512640 136057169 4294956160 18446744073709551615 134823889 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27314/statm: 424 212 180 377 0 44 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1696

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

[startup+1.10613 s]
/proc/loadavg: 0.92 0.98 0.91 2/65 27315
/proc/meminfo: memFree=1661296/2055920 swapFree=4121000/4192956
[pid=27314] ppid=27312 vsize=1696 CPUtime=1.1
/proc/27314/stat : 27314 (clasp) R 27312 27314 27068 0 -1 4194304 230 0 0 0 110 0 0 0 25 0 1 0 220017727 1736704 214 1992294400 134512640 136057169 4294956160 18446744073709551615 134823797 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27314/statm: 424 214 180 377 0 44 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 1696

Child status: 20
Real time (s): 1.17978
CPU time (s): 1.17882
CPU user time (s): 1.17882
CPU system time (s): 0
CPU usage (%): 99.9185
Max. virtual memory (cumulated for all children) (KiB): 1696

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.17882
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 234
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= 2
involuntary context switches= 2

runsolver used 0.002999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node20 at 2009-05-10 03:44:05
IDJOB=1785582
IDBENCH=71108
IDSOLVER=637
FILE ID=node20/1785582-1241919845
PBS_JOBID= 9264857
Free space on /tmp= 66340 MiB

SOLVER NAME= clasp 1.2.0-SAT09-32
BENCH NAME= SAT09/CRAFTED/sgen/unsat/sgen1-unsat-61-100.cnf
COMMAND LINE= HOME/clasp --file=BENCHNAME --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1785582-1241919845/watcher-1785582-1241919845 -o /tmp/evaluation-result-1785582-1241919845/solver-1785582-1241919845 -C 5000 -W 6000 -M 1800  HOME/clasp --file=HOME/instance-1785582-1241919845.cnf --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512

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

MD5SUM BENCH= 43b8e7efe061e21db6b4c047915ae87c
RANDOM SEED=565561844

node20.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		: 3000.214
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		: 3000.214
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:       1661912 kB
Buffers:         55240 kB
Cached:         208432 kB
SwapCached:      66264 kB
Active:          99796 kB
Inactive:       231844 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1661912 kB
SwapTotal:     4192956 kB
SwapFree:      4121000 kB
Dirty:            1848 kB
Writeback:           0 kB
Mapped:          13520 kB
Slab:            48348 kB
Committed_AS:   825160 kB
PageTables:       1396 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= 66336 MiB
End job on node20 at 2009-05-10 03:44:06