Trace number 1732841

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
SAT4J CORE 2.1 RC1SAT 1.10183 0.976479

General information on the benchmark

NameCRAFTED/ramseycube/
Q3inK10.cnf
MD5SUM0d32a4893e12fa46a8943c5daeb46b88
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.12498
Satisfiable
(Un)Satisfiability was proved
Number of variables45
Number of clauses75600
Sum of the clauses size907200
Maximum clause length12
Minimum clause length12
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 575600

Solver Data 

0.12/0.25	c SAT4J: a SATisfiability library for Java (c) 2004-2008 Daniel Le Berre
0.12/0.25	c This is free software under the dual EPL/GNU LGPL licenses.
0.12/0.25	c See www.sat4j.org for details.
0.12/0.26	c version 2.1.0.v20090228
0.12/0.27	c sun.arch.data.model	32
0.12/0.27	c java.version	1.6.0_12
0.12/0.27	c os.name	Linux
0.12/0.27	c os.version	2.6.9-22.EL.rootsmp
0.12/0.27	c os.arch	i386
0.12/0.27	c Free memory 1651659224
0.12/0.27	c Max memory 1654456320
0.12/0.27	c Total memory 1654456320
0.12/0.27	c Number of processors 2
0.24/0.31	c c --- Begin Solver configuration ---
0.24/0.31	c Stops conflict analysis at the first Unique Implication Point
0.24/0.31	c org.sat4j.minisat.constraints.MixedDataStructureDanielWL@11b9fb1
0.24/0.31	c Limit learning to clauses of size smaller or equal to 10% of the number of variables
0.24/0.31	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.1 initConflictBound=100 
0.24/0.31	c VSIDS like heuristics from MiniSAT using a heap lightweight component caching from RSAT
0.24/0.31	c Expensive reason simplification
0.24/0.31	c Armin Biere (Picosat) restarts strategy
0.24/0.31	c timeout=2147483647s
0.24/0.31	c DB Simplification allowed=true
0.24/0.31	c --- End Solver configuration ---
0.24/0.31	c solving HOME/instance-1732841-1240783755.cnf
0.24/0.31	c reading problem ... 
0.86/0.86	c ... done. Wall clock time 0.555s.
0.86/0.86	c #vars     45
0.86/0.86	c #constraints  75600
0.86/0.87	c constraints type 
0.86/0.87	c org.sat4j.minisat.constraints.cnf.OriginalWLClause => 75600
0.98/0.96	c starts		: 1
0.98/0.96	c conflicts		: 0
0.98/0.96	c decisions		: 30
0.98/0.96	c propagations		: 45
0.98/0.96	c inspects		: 80280
0.98/0.96	c learnt literals	: 0
0.98/0.96	c learnt binary clauses	: 0
0.98/0.96	c learnt ternary clauses	: 0
0.98/0.96	c learnt clauses	: 0
0.98/0.96	c ignored clauses	: 0
0.98/0.96	c root simplifications	: 1
0.98/0.96	c removed literals (reason simplification)	: 0
0.98/0.96	c reason swapping (by a shorter reason)	: 0
0.98/0.96	c Calls to reduceDB	: 0
0.98/0.96	c speed (assignments/second)	: 478.72340425531917
0.98/0.96	c non guided choices	30
0.98/0.96	c learnt constraints type 
0.98/0.96	s SATISFIABLE
0.98/0.96	v -1 -2 3 4 5 6 7 -8 -9 -10 11 12 13 14 15 -16 -17 18 19 20 21 22 -23 -24 -25 -26 -27 -28 -29 -30 -31 -32 -33 -34 -35 -36 -37 -38 -39 -40 -41 -42 -43 -44 -45 0
0.98/0.96	c Total wall clock time (in seconds) : 0.65

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-1732841-1240783755/watcher-1732841-1240783755 -o /tmp/evaluation-result-1732841-1240783755/solver-1732841-1240783755 -C 1200 -W 1800 -M 1800 --output-limit 1,15 java6 -server -Xms1600m -Xmx1600m -jar HOME/org.sat4j.core.jar HOME/instance-1732841-1240783755.cnf 

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: 1.83 1.83 1.46 3/65 20270
/proc/meminfo: memFree=1167280/2055920 swapFree=4192956/4192956
[pid=20270] ppid=20268 vsize=18576 CPUtime=0
/proc/20270/stat : 20270 (runsolver) R 20268 20270 19884 0 -1 4194368 16 0 0 0 0 0 0 0 20 0 1 0 106405237 19021824 292 1992294400 4194304 4302564 548682068384 18446744073709551615 214945033511 0 2147483391 4096 24578 0 0 0 17 0 0 0
/proc/20270/statm: 4644 292 257 26 0 2626 0

[startup+0.0253049 s]
/proc/loadavg: 1.83 1.83 1.46 3/65 20270
/proc/meminfo: memFree=1167280/2055920 swapFree=4192956/4192956
[pid=20270] ppid=20268 vsize=12928 CPUtime=0
/proc/20270/stat : 20270 (java) R 20268 20270 19884 0 -1 0 366 0 2 0 0 0 0 0 20 0 1 0 106405237 13238272 175 1992294400 134512640 134550932 4294955984 18446744073709551615 2572575 0 2147483391 4096 0 0 0 0 17 0 0 0
/proc/20270/statm: 3232 175 135 9 0 1104 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 12928

[startup+0.101306 s]
/proc/loadavg: 1.83 1.83 1.46 3/65 20270
/proc/meminfo: memFree=1167280/2055920 swapFree=4192956/4192956
[pid=20270] ppid=20268 vsize=1777088 CPUtime=0.05
/proc/20270/stat : 20270 (java) S 20268 20270 19884 0 -1 0 3212 0 30 0 1 4 0 0 18 0 4 0 106405237 1819738112 2988 1992294400 134512640 134550932 4294955984 18446744073709551615 4294960144 0 0 0 16784584 18446744073709551615 0 0 17 0 0 0
/proc/20270/statm: 444272 2988 937 9 0 441623 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1777088

[startup+0.301337 s]
/proc/loadavg: 1.83 1.83 1.46 3/65 20270
/proc/meminfo: memFree=1167280/2055920 swapFree=4192956/4192956
[pid=20270] ppid=20268 vsize=1782776 CPUtime=0.24
/proc/20270/stat : 20270 (java) S 20268 20270 19884 0 -1 0 4850 0 30 0 18 6 0 0 18 0 12 0 106405237 1825562624 4617 1992294400 134512640 134550932 4294955984 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/20270/statm: 445694 4618 1330 9 0 443041 0
Current children cumulated CPU time (s) 0.24
Current children cumulated vsize (KiB) 1782776

[startup+0.701374 s]
/proc/loadavg: 1.83 1.83 1.46 3/65 20270
/proc/meminfo: memFree=1167280/2055920 swapFree=4192956/4192956
[pid=20270] ppid=20268 vsize=1782960 CPUtime=0.76
/proc/20270/stat : 20270 (java) S 20268 20270 19884 0 -1 0 7027 0 30 0 68 8 0 0 18 0 12 0 106405237 1825751040 6785 1992294400 134512640 134550932 4294955984 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/20270/statm: 445740 6785 1374 9 0 443087 0
Current children cumulated CPU time (s) 0.76
Current children cumulated vsize (KiB) 1782960

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

[startup+0.901403 s]
/proc/loadavg: 1.83 1.83 1.46 3/65 20270
/proc/meminfo: memFree=1167280/2055920 swapFree=4192956/4192956
[pid=20270] ppid=20268 vsize=1783284 CPUtime=0.98
/proc/20270/stat : 20270 (java) S 20268 20270 19884 0 -1 0 8592 0 30 0 89 9 0 0 18 0 13 0 106405237 1826082816 8350 1992294400 134512640 134550932 4294955984 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/20270/statm: 445821 8350 1382 9 0 443168 0
Current children cumulated CPU time (s) 0.98
Current children cumulated vsize (KiB) 1783284

Child status: 10
Real time (s): 0.976479
CPU time (s): 1.10183
CPU user time (s): 0.998848
CPU system time (s): 0.102984
CPU usage (%): 112.837
Max. virtual memory (cumulated for all children) (KiB): 1783284

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.998848
system time used= 0.102984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8996
page faults= 30
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 600
involuntary context switches= 157

runsolver used 0.002999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node85 at 2009-04-27 00:09:16
IDJOB=1732841
IDBENCH=71129
IDSOLVER=500
FILE ID=node85/1732841-1240783755
PBS_JOBID= 9187223
Free space on /tmp= 126812 MiB

SOLVER NAME= SAT4J CORE  2.1 RC1
BENCH NAME= SAT09/CRAFTED/ramseycube/Q3inK10.cnf
COMMAND LINE= java6 -server -Xms1600m -Xmx1600m -jar HOME/org.sat4j.core.jar BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1732841-1240783755/watcher-1732841-1240783755 -o /tmp/evaluation-result-1732841-1240783755/solver-1732841-1240783755 -C 1200 -W 1800 -M 1800 --output-limit 1,15  java6 -server -Xms1600m -Xmx1600m -jar HOME/org.sat4j.core.jar HOME/instance-1732841-1240783755.cnf

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

MD5SUM BENCH= 0d32a4893e12fa46a8943c5daeb46b88
RANDOM SEED=737871477

node85.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		: 3000.238
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		: 3000.238
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:       1167696 kB
Buffers:        104504 kB
Cached:         676000 kB
SwapCached:          0 kB
Active:         112412 kB
Inactive:       681960 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1167696 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            3240 kB
Writeback:           0 kB
Mapped:          23576 kB
Slab:            79780 kB
Committed_AS:   296444 kB
PageTables:       1372 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= 126812 MiB
End job on node85 at 2009-04-27 00:09:17