Trace number 1084694

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 2008-06-13UNSAT 1.43678 1.57358

General information on the benchmark

Namecsp/langford2/
normalized-langford-2-5.xml
MD5SUM42a251b4e5e78e8baab98daca83f50dd
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.005998
Satisfiable
(Un)Satisfiability was proved
Number of variables10
Number of constraints50
Maximum constraint arity2
Maximum domain size10
Number of constraints which are defined in extension0
Number of constraints which are defined in intension50
Global constraints used (with number of constraints)

Solver Data (download as text)

0.28/0.42	c SAT4J: a SATisfiability library for Java (c) 2004-2008 Daniel Le Berre
0.28/0.42	c This is free software under the dual EPL/GNU LGPL licenses.
0.28/0.42	c See www.sat4j.org for details.
0.28/0.42	c That software uses the Rhino library from the Mozilla project.
0.28/0.46	c version 9.9.9.token
0.28/0.46	c sun.arch.data.model	32
0.28/0.46	c java.version	1.6.0_06
0.28/0.46	c os.name	Linux
0.28/0.46	c os.version	2.6.9-22.EL.rootsmp
0.28/0.46	c os.arch	i386
0.28/0.46	c Free memory 669864272
0.28/0.46	c Max memory 672137216
0.28/0.46	c Total memory 672137216
0.28/0.46	c Number of processors 2
0.37/0.51	c c --- Begin Solver configuration ---
0.37/0.51	c Stops conflict analysis at the first Unique Implication Point
0.37/0.51	c org.sat4j.minisat.constraints.MixedDataStructureDaniel@1d2068d
0.37/0.51	c Learn all clauses as in MiniSAT
0.37/0.51	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.37/0.51	c VSIDS like heuristics from MiniSAT using a heap phase appearing in latest learned clause
0.37/0.51	c Expensive reason simplification
0.37/0.51	c MiniSAT restarts strategy
0.37/0.51	c timeout=2147483s
0.37/0.51	c DB Simplification allowed=false
0.37/0.51	c --- End Solver configuration ---
0.37/0.51	c solving HOME/instance-1084694-1215231495.xml
0.37/0.51	c reading problem ... 
0.56/0.75	c reading problem named null
0.56/0.75	c reading domains done.
0.56/0.75	c reading variables done.
0.56/0.78	c reading predicates  done.
0.76/0.98	c reading constraints
1.26/1.49	c done with constraints.
1.26/1.49	c ... done. Wall clock time 0.98s.
1.26/1.49	c #vars     100
1.26/1.49	c #constraints  880
1.26/1.49	c constraints type 
1.26/1.49	c org.sat4j.minisat.constraints.cnf.OriginalWLClause => 830
1.26/1.49	c org.sat4j.minisat.constraints.card.AtLeast => 10
1.36/1.56	c starts		: 1
1.36/1.56	c conflicts		: 23
1.36/1.56	c decisions		: 22
1.36/1.56	c propagations		: 572
1.36/1.56	c inspects		: 13837
1.36/1.56	c learnt literals	: 2
1.36/1.56	c learnt binary clauses	: 3
1.36/1.56	c learnt ternary clauses	: 1
1.36/1.56	c learnt clauses	: 20
1.36/1.56	c ignored clauses	: 0
1.36/1.56	c root simplifications	: 0
1.36/1.56	c removed literals (reason simplification)	: 128
1.36/1.56	c reason swapping (by a shorter reason)	: 0
1.36/1.56	c Calls to reduceDB	: 0
1.36/1.56	c speed (assignments/second)	: 8411.764705882353
1.36/1.56	c non guided choices	8
1.36/1.56	s UNSATISFIABLE
1.36/1.56	c Total wall clock time (in seconds) : 1.05

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.5 (c) roussel@cril.univ-artois.fr

command line: /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1084694-1215231495/watcher-1084694-1215231495 -o /tmp/evaluation-result-1084694-1215231495/solver-1084694-1215231495 -C 1800 -W 2200 -M 900 --output-limit 1,15 java6 -server -Xms650m -Xmx650m -jar HOME/sat4jcsp.jar HOME/instance-1084694-1215231495.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): 2200 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
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: 2.57 2.32 2.12 3/81 7144
/proc/meminfo: memFree=1027656/2055920 swapFree=4178936/4192956
[pid=7144] ppid=7142 vsize=152 CPUtime=0
/proc/7144/stat : 7144 (java) R 7142 7144 6396 0 -1 0 211 0 0 0 0 0 0 0 18 0 1 0 2002119838 155648 26 996147200 134512640 134550740 4294956016 18446744073709551615 1835307 0 0 4096 0 0 0 0 17 0 0 0
/proc/7144/statm: 38 26 19 9 0 4 0

[startup+0.0403341 s]
/proc/loadavg: 2.57 2.32 2.12 3/81 7144
/proc/meminfo: memFree=1027656/2055920 swapFree=4178936/4192956
[pid=7144] ppid=7142 vsize=13012 CPUtime=0.01
/proc/7144/stat : 7144 (java) D 7142 7144 6396 0 -1 0 389 0 13 0 0 1 0 0 18 0 1 0 2002119838 13324288 203 996147200 134512640 134550740 4294956016 18446744073709551615 1807146 0 0 4096 0 18446744071563479169 0 0 17 0 0 0
/proc/7144/statm: 3253 203 136 9 0 1151 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 13012

[startup+0.10234 s]
/proc/loadavg: 2.57 2.32 2.12 3/81 7144
/proc/meminfo: memFree=1027656/2055920 swapFree=4178936/4192956
[pid=7144] ppid=7142 vsize=802080 CPUtime=0.05
/proc/7144/stat : 7144 (java) S 7142 7144 6396 0 -1 0 2534 0 30 0 3 2 0 0 18 0 7 0 2002119838 821329920 2298 996147200 134512640 134550740 4294956016 18446744073709551615 4294960144 0 0 0 16784584 18446744073709551615 0 0 17 0 0 0
/proc/7144/statm: 200520 2299 981 9 0 197903 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 802080

[startup+0.301361 s]
/proc/loadavg: 2.57 2.32 2.12 3/81 7144
/proc/meminfo: memFree=1027656/2055920 swapFree=4178936/4192956
[pid=7144] ppid=7142 vsize=808212 CPUtime=0.22
/proc/7144/stat : 7144 (java) S 7142 7144 6396 0 -1 0 4550 0 30 0 18 4 0 0 18 0 12 0 2002119838 827609088 3906 996147200 134512640 134550740 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/7144/statm: 202053 3906 1296 9 0 199422 0
Current children cumulated CPU time (s) 0.22
Current children cumulated vsize (KiB) 808212

[startup+0.701405 s]
/proc/loadavg: 2.57 2.32 2.12 3/81 7144
/proc/meminfo: memFree=1027656/2055920 swapFree=4178936/4192956
[pid=7144] ppid=7142 vsize=808240 CPUtime=0.56
/proc/7144/stat : 7144 (java) S 7142 7144 6396 0 -1 0 6058 0 30 0 50 6 0 0 18 0 12 0 2002119838 827637760 5248 996147200 134512640 134550740 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/7144/statm: 202060 5248 1335 9 0 199422 0
Current children cumulated CPU time (s) 0.56
Current children cumulated vsize (KiB) 808240

[startup+1.5025 s]
/proc/loadavg: 2.53 2.31 2.12 3/93 7156
/proc/meminfo: memFree=999784/2055920 swapFree=4178936/4192956
[pid=7144] ppid=7142 vsize=811812 CPUtime=1.36
/proc/7144/stat : 7144 (java) S 7142 7144 6396 0 -1 0 9125 0 30 0 127 9 0 0 18 0 13 0 2002119838 831295488 7365 996147200 134512640 134550740 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/7144/statm: 202953 7366 1358 9 0 200315 0
[pid=7144/tid=7146] ppid=7142 vsize=811812 CPUtime=0.75
/proc/7144/task/7146/stat : 7146 (java) R 7142 7144 6396 0 -1 64 4842 0 1 0 70 5 0 0 25 0 13 0 2002119845 831295488 7366 996147200 134512640 134550740 4294956016 18446744073709551615 103569346 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=7144/tid=7147] ppid=7142 vsize=811812 CPUtime=0
/proc/7144/task/7147/stat : 7147 (java) S 7142 7144 6396 0 -1 64 2 0 0 0 0 0 0 0 21 0 13 0 2002119846 831295488 7366 996147200 134512640 134550740 4294956016 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=7144/tid=7148] ppid=7142 vsize=811812 CPUtime=0
/proc/7144/task/7148/stat : 7148 (java) S 7142 7144 6396 0 -1 64 0 0 0 0 0 0 0 0 22 0 13 0 2002119846 831295488 7366 996147200 134512640 134550740 4294956016 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=7144/tid=7149] ppid=7142 vsize=811812 CPUtime=0
/proc/7144/task/7149/stat : 7149 (java) S 7142 7144 6396 0 -1 64 1 0 0 0 0 0 0 0 16 0 13 0 2002119848 831295488 7366 996147200 134512640 134550740 4294956016 18446744073709551615 4294960144 0 0 0 16800975 0 0 0 -1 0 0 0
[pid=7144/tid=7150] ppid=7142 vsize=811812 CPUtime=0
/proc/7144/task/7150/stat : 7150 (java) S 7142 7144 6396 0 -1 64 9 0 0 0 0 0 0 0 24 0 13 0 2002119848 831295488 7366 996147200 134512640 134550740 4294956016 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=7144/tid=7151] ppid=7142 vsize=811812 CPUtime=0
/proc/7144/task/7151/stat : 7151 (java) S 7142 7144 6396 0 -1 64 5 0 0 0 0 0 0 0 25 0 13 0 2002119848 831295488 7366 996147200 134512640 134550740 4294956016 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=7144/tid=7152] ppid=7142 vsize=811812 CPUtime=0
/proc/7144/task/7152/stat : 7152 (java) S 7142 7144 6396 0 -1 64 2 0 0 0 0 0 0 0 24 0 13 0 2002119855 831295488 7366 996147200 134512640 134550740 4294956016 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=7144/tid=7153] ppid=7142 vsize=811812 CPUtime=0.35
/proc/7144/task/7153/stat : 7153 (java) S 7142 7144 6396 0 -1 64 2199 0 0 0 34 1 0 0 16 0 13 0 2002119855 831295488 7366 996147200 134512640 134550740 4294956016 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=7144/tid=7154] ppid=7142 vsize=811812 CPUtime=0.22
/proc/7144/task/7154/stat : 7154 (java) S 7142 7144 6396 0 -1 64 1351 0 0 0 22 0 0 0 16 0 13 0 2002119855 831295488 7366 996147200 134512640 134550740 4294956016 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=7144/tid=7155] ppid=7142 vsize=811812 CPUtime=0
/proc/7144/task/7155/stat : 7155 (java) S 7142 7144 6396 0 -1 64 0 0 0 0 0 0 0 0 25 0 13 0 2002119855 831295488 7366 996147200 134512640 134550740 4294956016 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=7144/tid=7156] ppid=7142 vsize=811812 CPUtime=0
/proc/7144/task/7156/stat : 7156 (java) S 7142 7144 6396 0 -1 64 0 0 0 0 0 0 0 0 15 0 13 0 2002119855 831295488 7366 996147200 134512640 134550740 4294956016 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
Current children cumulated CPU time (s) 1.36
Current children cumulated vsize (KiB) 811812

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

Child status: 0
Real time (s): 1.57358
CPU time (s): 1.43678
CPU user time (s): 1.3398
CPU system time (s): 0.096985
CPU usage (%): 91.3066
Max. virtual memory (cumulated for all children) (KiB): 812452

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.3398
system time used= 0.096985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9157
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= 714
involuntary context switches= 273

runsolver used 0.003999 second user time and 0.009998 second system time

The end

Launcher Data (download as text)

Begin job on node64 at 2008-07-05 06:18:15
IDJOB=1084694
IDBENCH=57579
IDSOLVER=344
FILE ID=node64/1084694-1215231495
PBS_JOBID= 7881907
Free space on /tmp= 66388 MiB

SOLVER NAME= SAT4J CSP 2008-06-13
BENCH NAME= CPAI08/csp/langford2/normalized-langford-2-5.xml
COMMAND LINE= java6 -server -Xms650m -Xmx650m -jar HOME/sat4jcsp.jar BENCHNAME
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1084694-1215231495/watcher-1084694-1215231495 -o /tmp/evaluation-result-1084694-1215231495/solver-1084694-1215231495 -C 1800 -W 2200 -M 900 --output-limit 1,15  java6 -server -Xms650m -Xmx650m -jar HOME/sat4jcsp.jar HOME/instance-1084694-1215231495.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 42a251b4e5e78e8baab98daca83f50dd
RANDOM SEED=1809064913

node64.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		: 3000.248
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		: 3000.248
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:       1028136 kB
Buffers:         36776 kB
Cached:         184568 kB
SwapCached:       7408 kB
Active:         889384 kB
Inactive:        82160 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1028136 kB
SwapTotal:     4192956 kB
SwapFree:      4178936 kB
Dirty:            1492 kB
Writeback:           0 kB
Mapped:         766304 kB
Slab:            39740 kB
Committed_AS:  4819804 kB
PageTables:       3276 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66384 MiB
End job on node64 at 2008-07-05 06:18:16