Trace number 1786116

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-SAT09-32SAT 0.051992 0.0536

General information on the benchmark

NameCRAFTED/parity-games/
instance_n4_i4_pp.cnf
MD5SUMd35b54498d8d9672e60bf7e3ce33352b
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.041993
Satisfiable
(Un)Satisfiability was proved
Number of variables1572
Number of clauses9007
Sum of the clauses size28496
Maximum clause length12
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22356
Number of clauses of size 33596
Number of clauses of size 42300
Number of clauses of size 5752
Number of clauses of size over 53

Solver Data 

0.01/0.05	c clasp version 1.2.0-SAT09 
0.01/0.05	c Reading from ...948475/instance-1786116-1241948475.cnf
0.01/0.05	c Reading      : Done(0.000s)
0.01/0.05	c Preprocessing: |-\|Done(0.030s)
0.01/0.05	c Solving...
0.01/0.05	c Model: 1
0.01/0.05	v -1 -2 -3 -4 -5 -6 7 -8 9 10
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0.01/0.05	v 1561 1562 1563 1564 1565 -1566 -1567 1568 1569 1570
0.01/0.05	v 1571 1572 0 
0.01/0.05	
0.01/0.05	c Models    : 1+    
0.01/0.05	c Time         : 0.050s (Solve: 0.020s)
0.01/0.05	s SATISFIABLE

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-1786116-1241948475/watcher-1786116-1241948475 -o /tmp/evaluation-result-1786116-1241948475/solver-1786116-1241948475 -C 5000 -W 6000 -M 1800 HOME/clasp --file=HOME/instance-1786116-1241948475.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: 0.97 0.98 0.99 3/64 32762
/proc/meminfo: memFree=913008/2055920 swapFree=4181272/4192956
[pid=32762] ppid=32760 vsize=1972 CPUtime=0
/proc/32762/stat : 32762 (clasp) R 32760 32762 32505 0 -1 4194304 251 0 0 0 0 0 0 0 18 0 1 0 222881032 2019328 235 1992294400 134512640 136057169 4294956160 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/32762/statm: 493 235 144 377 0 113 0

[startup+0.0166461 s]
/proc/loadavg: 0.97 0.98 0.99 3/64 32762
/proc/meminfo: memFree=913008/2055920 swapFree=4181272/4192956
[pid=32762] ppid=32760 vsize=2368 CPUtime=0.01
/proc/32762/stat : 32762 (clasp) R 32760 32762 32505 0 -1 4194304 399 0 0 0 1 0 0 0 18 0 1 0 222881032 2424832 372 1992294400 134512640 136057169 4294956160 18446744073709551615 134776795 0 0 4096 16386 0 0 0 17 1 0 0
/proc/32762/statm: 592 372 167 377 0 212 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2368

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

[startup+0.0166461 s]
/proc/loadavg: 0.97 0.98 0.99 3/64 32762
/proc/meminfo: memFree=913008/2055920 swapFree=4181272/4192956
[pid=32762] ppid=32760 vsize=2368 CPUtime=0.01
/proc/32762/stat : 32762 (clasp) R 32760 32762 32505 0 -1 4194304 399 0 0 0 1 0 0 0 18 0 1 0 222881032 2424832 372 1992294400 134512640 136057169 4294956160 18446744073709551615 134776795 0 0 4096 16386 0 0 0 17 1 0 0
/proc/32762/statm: 592 372 167 377 0 212 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2368

Child status: 10
Real time (s): 0.0536
CPU time (s): 0.051992
CPU user time (s): 0.051992
CPU system time (s): 0
CPU usage (%): 97
Max. virtual memory (cumulated for all children) (KiB): 2368

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.051992
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= 471
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= 6
involuntary context switches= 0

runsolver used 0.003999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node22 at 2009-05-10 11:41:15
IDJOB=1786116
IDBENCH=71627
IDSOLVER=637
FILE ID=node22/1786116-1241948475
PBS_JOBID= 9265076
Free space on /tmp= 66368 MiB

SOLVER NAME= clasp 1.2.0-SAT09-32
BENCH NAME= SAT09/CRAFTED/parity-games/instance_n4_i4_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-1786116-1241948475/watcher-1786116-1241948475 -o /tmp/evaluation-result-1786116-1241948475/solver-1786116-1241948475 -C 5000 -W 6000 -M 1800  HOME/clasp --file=HOME/instance-1786116-1241948475.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= d35b54498d8d9672e60bf7e3ce33352b
RANDOM SEED=1817053596

node22.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		: 3000.232
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		: 3000.232
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:        913424 kB
Buffers:         67856 kB
Cached:         980004 kB
SwapCached:       5528 kB
Active:         307112 kB
Inactive:       749144 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        913424 kB
SwapTotal:     4192956 kB
SwapFree:      4181272 kB
Dirty:            2116 kB
Writeback:           0 kB
Mapped:          14128 kB
Slab:            72328 kB
Committed_AS:   815288 kB
PageTables:       1368 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= 66368 MiB
End job on node22 at 2009-05-10 11:41:15