Trace number 1736999

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 0.606906 0.607622

General information on the benchmark

NameCRAFTED/parity-games/
instance_n4_i5_pp.cnf
MD5SUMc15885aa7570af76db584f0c4936c8d8
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.280956
Satisfiable
(Un)Satisfiability was proved
Number of variables1960
Number of clauses11270
Sum of the clauses size35662
Maximum clause length12
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22945
Number of clauses of size 34500
Number of clauses of size 42881
Number of clauses of size 5940
Number of clauses of size over 54

Solver Data 

0.59/0.60	c clasp version 1.2.0-SAT09 
0.59/0.60	c Reading from ...814223/instance-1736999-1240814223.cnf
0.59/0.60	c Reading      : Done(0.000s)
0.59/0.60	c Preprocessing: |-\|Done(0.040s)
0.59/0.60	c Solving...
0.59/0.60	
0.59/0.60	c Models    : 0     
0.59/0.60	c Time         : 0.600s (Solve: 0.560s)
0.59/0.60	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-1736999-1240814223/watcher-1736999-1240814223 -o /tmp/evaluation-result-1736999-1240814223/solver-1736999-1240814223 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/clasp --file=HOME/instance-1736999-1240814223.cnf --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 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: 1.84 1.69 1.36 3/65 12075
/proc/meminfo: memFree=1681432/2055920 swapFree=4192952/4192956
[pid=12075] ppid=12073 vsize=2036 CPUtime=0
/proc/12075/stat : 12075 (clasp) R 12073 12075 11670 0 -1 4194304 262 0 0 0 0 0 0 0 20 0 1 0 109451406 2084864 246 1992294400 134512640 136057169 4294956144 18446744073709551615 135502702 0 0 4096 16386 0 0 0 17 1 0 0
/proc/12075/statm: 509 247 144 377 0 129 0

[startup+0.09401 s]
/proc/loadavg: 1.84 1.69 1.36 3/65 12075
/proc/meminfo: memFree=1681432/2055920 swapFree=4192952/4192956
[pid=12075] ppid=12073 vsize=2872 CPUtime=0.09
/proc/12075/stat : 12075 (clasp) R 12073 12075 11670 0 -1 4194304 523 0 0 0 9 0 0 0 20 0 1 0 109451406 2940928 493 1992294400 134512640 136057169 4294956144 18446744073709551615 134823366 0 0 4096 16386 0 0 0 17 1 0 0
/proc/12075/statm: 718 493 182 377 0 338 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2872

[startup+0.101009 s]
/proc/loadavg: 1.84 1.69 1.36 3/65 12075
/proc/meminfo: memFree=1681432/2055920 swapFree=4192952/4192956
[pid=12075] ppid=12073 vsize=2872 CPUtime=0.09
/proc/12075/stat : 12075 (clasp) R 12073 12075 11670 0 -1 4194304 523 0 0 0 9 0 0 0 20 0 1 0 109451406 2940928 493 1992294400 134512640 136057169 4294956144 18446744073709551615 134823934 0 0 4096 16386 0 0 0 17 1 0 0
/proc/12075/statm: 718 493 182 377 0 338 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2872

[startup+0.301031 s]
/proc/loadavg: 1.84 1.69 1.36 3/65 12075
/proc/meminfo: memFree=1681432/2055920 swapFree=4192952/4192956
[pid=12075] ppid=12073 vsize=2872 CPUtime=0.29
/proc/12075/stat : 12075 (clasp) R 12073 12075 11670 0 -1 4194304 542 0 0 0 29 0 0 0 22 0 1 0 109451406 2940928 512 1992294400 134512640 136057169 4294956144 18446744073709551615 134823938 0 0 4096 16386 0 0 0 17 1 0 0
/proc/12075/statm: 718 512 182 377 0 338 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2872

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

[startup+0.501054 s]
/proc/loadavg: 1.84 1.69 1.36 3/65 12075
/proc/meminfo: memFree=1681432/2055920 swapFree=4192952/4192956
[pid=12075] ppid=12073 vsize=3004 CPUtime=0.49
/proc/12075/stat : 12075 (clasp) R 12073 12075 11670 0 -1 4194304 560 0 0 0 49 0 0 0 24 0 1 0 109451406 3076096 530 1992294400 134512640 136057169 4294956144 18446744073709551615 134823857 0 0 4096 16386 0 0 0 17 1 0 0
/proc/12075/statm: 751 530 182 377 0 371 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 3004

[startup+0.601066 s]
/proc/loadavg: 1.84 1.69 1.36 3/65 12075
/proc/meminfo: memFree=1681432/2055920 swapFree=4192952/4192956
[pid=12075] ppid=12073 vsize=3004 CPUtime=0.59
/proc/12075/stat : 12075 (clasp) R 12073 12075 11670 0 -1 4194304 564 0 0 0 59 0 0 0 25 0 1 0 109451406 3076096 534 1992294400 134512640 136057169 4294956144 18446744073709551615 134819232 0 0 4096 16386 0 0 0 17 1 0 0
/proc/12075/statm: 751 534 182 377 0 371 0
Current children cumulated CPU time (s) 0.59
Current children cumulated vsize (KiB) 3004

Child status: 20
Real time (s): 0.607622
CPU time (s): 0.606906
CPU user time (s): 0.605907
CPU system time (s): 0.000999
CPU usage (%): 99.8822
Max. virtual memory (cumulated for all children) (KiB): 3004

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.605907
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 569
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 0.003999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node88 at 2009-04-27 08:37:03
IDJOB=1736999
IDBENCH=71640
IDSOLVER=508
FILE ID=node88/1736999-1240814223
PBS_JOBID= 9187469
Free space on /tmp= 66560 MiB

SOLVER NAME= clasp 1.2.0-SAT09-32
BENCH NAME= SAT09/CRAFTED/parity-games/instance_n4_i5_pp.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-1736999-1240814223/watcher-1736999-1240814223 -o /tmp/evaluation-result-1736999-1240814223/solver-1736999-1240814223 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/clasp --file=HOME/instance-1736999-1240814223.cnf --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= c15885aa7570af76db584f0c4936c8d8
RANDOM SEED=1046917948

node88.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		: 3000.229
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		: 3000.229
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1681912 kB
Buffers:         54176 kB
Cached:         234616 kB
SwapCached:          4 kB
Active:         129844 kB
Inactive:       173216 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1681912 kB
SwapTotal:     4192956 kB
SwapFree:      4192952 kB
Dirty:            2044 kB
Writeback:           0 kB
Mapped:          24048 kB
Slab:            56888 kB
Committed_AS:   309384 kB
PageTables:       1444 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= 66560 MiB
End job on node88 at 2009-04-27 08:37:03