Trace number 2082284

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 CSP 2.1.1SAT 0.803877 1.03064

General information on the benchmark

Namecsp/langford2/
normalized-langford-2-3.xml
MD5SUM106804da3e01f843ca5d9120fa0a4072
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.016996
Satisfiable
(Un)Satisfiability was proved
Number of variables6
Number of constraints18
Maximum constraint arity2
Maximum domain size6
Number of constraints which are defined in extension0
Number of constraints which are defined in intension18
Global constraints used (with number of constraints)

Solver Data 

0.05/0.29	c SAT4J: a SATisfiability library for Java (c) 2004-2008 Daniel Le Berre
0.05/0.29	c This is free software under the dual EPL/GNU LGPL licenses.
0.05/0.29	c See www.sat4j.org for details.
0.05/0.29	c That software uses the Rhino library from the Mozilla project.
0.14/0.31	c version 2.1.1.v20090622
0.14/0.31	c sun.arch.data.model	32
0.14/0.31	c java.version	1.6.0_12
0.14/0.31	c os.name	Linux
0.14/0.31	c os.version	2.6.9-22.EL.rootsmp
0.14/0.31	c os.arch	i386
0.14/0.31	c Free memory 671000808
0.14/0.31	c Max memory 672137216
0.14/0.31	c Total memory 672137216
0.14/0.31	c Number of processors 2
0.14/0.40	c c --- Begin Solver configuration ---
0.14/0.40	c Stops conflict analysis at the first Unique Implication Point
0.14/0.40	c org.sat4j.minisat.constraints.MixedDataStructureDanielWL@1f14ceb
0.14/0.40	c Learn all clauses as in MiniSAT
0.14/0.40	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.14/0.40	c VSIDS like heuristics from MiniSAT using a heap phase appearing in latest learned clause
0.14/0.40	c Expensive reason simplification
0.14/0.40	c MiniSAT restarts strategy
0.14/0.40	c Memory based learned constraints deletion strategy
0.14/0.40	c timeout=2147483s
0.14/0.40	c DB Simplification allowed=false
0.14/0.40	c --- End Solver configuration ---
0.14/0.40	c solving HOME/instance-2082284-1247374876.xml
0.23/0.40	c reading problem ... 
0.43/0.65	c reading problem named null
0.43/0.65	c reading domains done.
0.43/0.65	c reading variables done.
0.43/0.66	c reading predicates  done.
0.72/0.90	c reading constraints
0.72/0.96	c done with constraints.
0.72/0.96	c ... done. Wall clock time 0.558s.
0.72/0.96	c #vars     36
0.72/0.96	c #constraints  196
0.72/0.96	c constraints type 
0.72/0.96	c org.sat4j.minisat.constraints.cnf.OriginalWLClause => 150
0.72/0.96	c org.sat4j.minisat.constraints.card.AtLeast => 6
0.72/0.96	c org.sat4j.minisat.constraints.cnf.OriginalBinaryClause => 22
0.72/0.96	c starts		: 1
0.72/0.96	c conflicts		: 0
0.72/0.96	c decisions		: 2
0.72/0.96	c propagations		: 36
0.72/0.96	c inspects		: 286
0.72/0.96	c learnt literals	: 0
0.72/0.96	c learnt binary clauses	: 0
0.72/0.96	c learnt ternary clauses	: 0
0.72/0.96	c learnt clauses	: 0
0.72/0.96	c ignored clauses	: 0
0.72/0.96	c root simplifications	: 0
0.72/0.96	c removed literals (reason simplification)	: 0
0.72/0.96	c reason swapping (by a shorter reason)	: 0
0.72/0.96	c Calls to reduceDB	: 0
0.72/0.96	c speed (assignments/second)	: 7200.0
0.72/0.96	c non guided choices	2
0.72/0.96	c learnt constraints type 
0.72/0.96	c constraints type 
0.72/0.96	c org.sat4j.minisat.constraints.cnf.OriginalWLClause => 150
0.72/0.97	c org.sat4j.minisat.constraints.card.AtLeast => 6
0.72/0.97	c org.sat4j.minisat.constraints.cnf.OriginalBinaryClause => 22
0.72/0.97	s SATISFIABLE
0.72/0.97	v 1 2 0 3 5 4 
0.72/0.97	c Total wall clock time (in seconds) : 0.565

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-2082284-1247374876/watcher-2082284-1247374876 -o /tmp/evaluation-result-2082284-1247374876/solver-2082284-1247374876 -C 1800 -W 2000 -M 900 java6 -server -Xms650m -Xmx650m -jar HOME/sat4j-csp.jar HOME/instance-2082284-1247374876.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.12 2.07 2.02 3/81 27814
/proc/meminfo: memFree=1795216/2055920 swapFree=4192812/4192956
[pid=27814] ppid=27812 vsize=18576 CPUtime=0
/proc/27814/stat : 27814 (runsolver) D 27812 27814 23333 0 -1 4194368 16 0 0 0 0 0 0 0 18 0 1 0 24551228 19021824 284 996147200 4194304 4302564 548682068448 18446744073709551615 240577473831 0 0 4096 24578 18446744071563608240 0 0 17 1 0 0
/proc/27814/statm: 4644 284 249 26 0 2626 0

[startup+0.0176401 s]
/proc/loadavg: 2.12 2.07 2.02 3/81 27814
/proc/meminfo: memFree=1795216/2055920 swapFree=4192812/4192956
[pid=27814] ppid=27812 vsize=324 CPUtime=0
/proc/27814/stat : 27814 (java6) D 27812 27814 23333 0 -1 0 60 0 0 0 0 0 0 0 18 0 1 0 24551228 331776 44 996147200 134512640 134550932 4294956176 18446744073709551615 7918500 0 0 4096 0 18446744071563608240 0 0 17 1 0 0
/proc/27814/statm: 81 44 33 9 0 6 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 324

[startup+0.102653 s]
/proc/loadavg: 2.12 2.07 2.02 3/81 27814
/proc/meminfo: memFree=1795216/2055920 swapFree=4192812/4192956
[pid=27814] ppid=27812 vsize=13460 CPUtime=0.01
/proc/27814/stat : 27814 (java) S 27812 27814 23333 0 -1 0 778 0 34 0 0 1 0 0 18 0 2 0 24551228 13783040 592 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16784584 18446744073709551615 0 0 17 1 0 0
/proc/27814/statm: 3365 592 272 9 0 1200 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 13460

[startup+0.302671 s]
/proc/loadavg: 2.12 2.07 2.02 3/81 27814
/proc/meminfo: memFree=1795216/2055920 swapFree=4192812/4192956
[pid=27814] ppid=27812 vsize=804820 CPUtime=0.14
/proc/27814/stat : 27814 (java) S 27812 27814 23333 0 -1 0 3488 0 35 0 11 3 0 0 18 0 12 0 24551228 824135680 3263 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/27814/statm: 201205 3263 1291 9 0 198539 0
Current children cumulated CPU time (s) 0.14
Current children cumulated vsize (KiB) 804820

[startup+0.702709 s]
/proc/loadavg: 2.12 2.07 2.02 3/81 27814
/proc/meminfo: memFree=1795216/2055920 swapFree=4192812/4192956
[pid=27814] ppid=27812 vsize=807184 CPUtime=0.53
/proc/27814/stat : 27814 (java) S 27812 27814 23333 0 -1 0 5463 0 35 0 47 6 0 0 18 0 12 0 24551228 826556416 4993 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/27814/statm: 201796 4993 1384 9 0 199123 0
Current children cumulated CPU time (s) 0.53
Current children cumulated vsize (KiB) 807184

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

[startup+0.902724 s]
/proc/loadavg: 2.12 2.07 2.02 3/81 27814
/proc/meminfo: memFree=1795216/2055920 swapFree=4192812/4192956
[pid=27814] ppid=27812 vsize=807352 CPUtime=0.72
/proc/27814/stat : 27814 (java) S 27812 27814 23333 0 -1 0 6386 0 35 0 66 6 0 0 18 0 12 0 24551228 826728448 5800 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/27814/statm: 201838 5800 1387 9 0 199165 0
Current children cumulated CPU time (s) 0.72
Current children cumulated vsize (KiB) 807352

[startup+1.00273 s]
/proc/loadavg: 2.11 2.07 2.02 2/93 27828
/proc/meminfo: memFree=1769520/2055920 swapFree=4192812/4192956
[pid=27814] ppid=27812 vsize=808000 CPUtime=0.79
/proc/27814/stat : 27814 (java) S 27812 27814 23333 0 -1 0 6510 0 35 0 72 7 0 0 18 0 12 0 24551228 827392000 5924 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/27814/statm: 202000 5924 1388 9 0 199327 0
[pid=27814/tid=27816] ppid=27812 vsize=808000 CPUtime=0.6
/proc/27814/task/27816/stat : 27816 (java) S 27812 27814 23333 0 -1 64 4653 0 1 0 56 4 0 0 19 0 12 0 24551237 827392000 5924 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=27814/tid=27817] ppid=27812 vsize=808000 CPUtime=0
/proc/27814/task/27817/stat : 27817 (java) S 27812 27814 23333 0 -1 64 3 0 0 0 0 0 0 0 18 0 12 0 24551242 827392000 5924 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=27814/tid=27818] ppid=27812 vsize=808000 CPUtime=0
/proc/27814/task/27818/stat : 27818 (java) S 27812 27814 23333 0 -1 64 1 0 0 0 0 0 0 0 19 0 12 0 24551242 827392000 5924 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=27814/tid=27819] ppid=27812 vsize=808000 CPUtime=0
/proc/27814/task/27819/stat : 27819 (java) S 27812 27814 23333 0 -1 64 2 0 0 0 0 0 0 0 20 0 12 0 24551244 827392000 5924 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 0 0 0 -1 1 0 0
[pid=27814/tid=27820] ppid=27812 vsize=808000 CPUtime=0
/proc/27814/task/27820/stat : 27820 (java) S 27812 27814 23333 0 -1 64 10 0 0 0 0 0 0 0 21 0 12 0 24551245 827392000 5924 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=27814/tid=27821] ppid=27812 vsize=808000 CPUtime=0
/proc/27814/task/27821/stat : 27821 (java) S 27812 27814 23333 0 -1 64 4 0 0 0 0 0 0 0 22 0 12 0 24551245 827392000 5924 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=27814/tid=27822] ppid=27812 vsize=808000 CPUtime=0
/proc/27814/task/27822/stat : 27822 (java) S 27812 27814 23333 0 -1 64 1 0 0 0 0 0 0 0 18 0 12 0 24551252 827392000 5924 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=27814/tid=27823] ppid=27812 vsize=808000 CPUtime=0
/proc/27814/task/27823/stat : 27823 (java) S 27812 27814 23333 0 -1 64 13 0 0 0 0 0 0 0 19 0 12 0 24551252 827392000 5924 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=27814/tid=27824] ppid=27812 vsize=808000 CPUtime=0.15
/proc/27814/task/27824/stat : 27824 (java) S 27812 27814 23333 0 -1 64 1118 0 0 0 15 0 0 0 16 0 12 0 24551252 827392000 5924 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=27814/tid=27825] ppid=27812 vsize=808000 CPUtime=0
/proc/27814/task/27825/stat : 27825 (java) S 27812 27814 23333 0 -1 64 1 0 0 0 0 0 0 0 20 0 12 0 24551252 827392000 5924 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=27814/tid=27826] ppid=27812 vsize=808000 CPUtime=0
/proc/27814/task/27826/stat : 27826 (java) S 27812 27814 23333 0 -1 64 1 0 0 0 0 0 0 0 15 0 12 0 24551252 827392000 5924 996147200 134512640 134550932 4294956016 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 808000

Child status: 0
Real time (s): 1.03064
CPU time (s): 0.803877
CPU user time (s): 0.727889
CPU system time (s): 0.075988
CPU usage (%): 77.9982
Max. virtual memory (cumulated for all children) (KiB): 808000

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.727889
system time used= 0.075988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6514
page faults= 35
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 372
involuntary context switches= 165

runsolver used 0.005999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node50 at 2009-07-12 07:01:16
IDJOB=2082284
IDBENCH=57564
IDSOLVER=731
FILE ID=node50/2082284-1247374876
PBS_JOBID= 9507088
Free space on /tmp= 66428 MiB

SOLVER NAME= SAT4J CSP 2.1.1
BENCH NAME= CPAI08/csp/langford2/normalized-langford-2-3.xml
COMMAND LINE= java6 -server -Xms650m -Xmx650m -jar HOME/sat4j-csp.jar BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2082284-1247374876/watcher-2082284-1247374876 -o /tmp/evaluation-result-2082284-1247374876/solver-2082284-1247374876 -C 1800 -W 2000 -M 900  java6 -server -Xms650m -Xmx650m -jar HOME/sat4j-csp.jar HOME/instance-2082284-1247374876.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 106804da3e01f843ca5d9120fa0a4072
RANDOM SEED=272259918

node50.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		: 3000.231
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		: 3000.231
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:       1795888 kB
Buffers:          7628 kB
Cached:          58060 kB
SwapCached:          0 kB
Active:         175780 kB
Inactive:        30004 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1795888 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1372 kB
Writeback:           0 kB
Mapped:         160620 kB
Slab:            38992 kB
Committed_AS:   382348 kB
PageTables:       2172 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= 66424 MiB
End job on node50 at 2009-07-12 07:01:17