Trace number 1736499

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 0.054044

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 benchmark0.022995
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 

0.02/0.05	c clasp version 1.2.0-SAT09 
0.02/0.05	c Reading from ...811873/instance-1736499-1240811873.cnf
0.02/0.05	c Reading      : Done(0.000s)
0.02/0.05	c Preprocessing: |-\|Done(0.030s)
0.02/0.05	c Solving...
0.02/0.05	c Model: 1
0.02/0.05	v -1 -2 -3 -4 -5 -6 7 -8 9 10
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0.02/0.05	v 1531 1532 1533 1534 1535 -1536 -1537 -1538 1539 -1540
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0.02/0.05	v 1561 1562 1563 1564 1565 -1566 -1567 1568 1569 1570
0.02/0.05	v 1571 1572 0 
0.02/0.05	
0.02/0.05	c Models    : 1+    
0.02/0.05	c Time         : 0.050s (Solve: 0.020s)
0.02/0.05	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-1736499-1240811873/watcher-1736499-1240811873 -o /tmp/evaluation-result-1736499-1240811873/solver-1736499-1240811873 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/clasp --file=HOME/instance-1736499-1240811873.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: 1.99 1.92 1.57 3/64 27890
/proc/meminfo: memFree=1687968/2055920 swapFree=4181732/4192956
[pid=27890] ppid=27888 vsize=1972 CPUtime=0
/proc/27890/stat : 27890 (clasp) R 27888 27890 27521 0 -1 4194304 251 0 0 0 0 0 0 0 18 0 1 0 109214803 2019328 235 1992294400 134512640 136057169 4294956144 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27890/statm: 493 235 144 377 0 113 0

[startup+0.0251049 s]
/proc/loadavg: 1.99 1.92 1.57 3/64 27890
/proc/meminfo: memFree=1687968/2055920 swapFree=4181732/4192956
[pid=27890] ppid=27888 vsize=2500 CPUtime=0.02
/proc/27890/stat : 27890 (clasp) R 27888 27890 27521 0 -1 4194304 412 0 0 0 2 0 0 0 18 0 1 0 109214803 2560000 385 1992294400 134512640 136057169 4294956144 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27890/statm: 625 385 169 377 0 245 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 2500

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

[startup+0.0251049 s]
/proc/loadavg: 1.99 1.92 1.57 3/64 27890
/proc/meminfo: memFree=1687968/2055920 swapFree=4181732/4192956
[pid=27890] ppid=27888 vsize=2500 CPUtime=0.02
/proc/27890/stat : 27890 (clasp) R 27888 27890 27521 0 -1 4194304 412 0 0 0 2 0 0 0 18 0 1 0 109214803 2560000 385 1992294400 134512640 136057169 4294956144 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27890/statm: 625 385 169 377 0 245 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 2500

Child status: 10
Real time (s): 0.054044
CPU time (s): 0.051992
CPU user time (s): 0.051992
CPU system time (s): 0
CPU usage (%): 96.2031
Max. virtual memory (cumulated for all children) (KiB): 2500

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= 1

runsolver used 0.003999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node52 at 2009-04-27 07:57:53
IDJOB=1736499
IDBENCH=71627
IDSOLVER=508
FILE ID=node52/1736499-1240811873
PBS_JOBID= 9187416
Free space on /tmp= 66232 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-1736499-1240811873/watcher-1736499-1240811873 -o /tmp/evaluation-result-1736499-1240811873/solver-1736499-1240811873 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/clasp --file=HOME/instance-1736499-1240811873.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= d35b54498d8d9672e60bf7e3ce33352b
RANDOM SEED=1857076747

node52.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	: 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		: 3000.214
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:       1688448 kB
Buffers:         43316 kB
Cached:         244644 kB
SwapCached:       5120 kB
Active:         114272 kB
Inactive:       181632 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1688448 kB
SwapTotal:     4192956 kB
SwapFree:      4181732 kB
Dirty:            2000 kB
Writeback:           0 kB
Mapped:          14016 kB
Slab:            57492 kB
Committed_AS:   486208 kB
PageTables:       1476 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= 66232 MiB
End job on node52 at 2009-04-27 07:57:53