Trace number 1039868

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 2008-06-13? 1.14682 0.883796

General information on the benchmark

Namecsp/magicSquare/
normalized-magicSquare-18_glb.xml
MD5SUM8c9a9485571326f274e2bac46160c372
Bench CategoryGLOBAL (global constraints)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark382.126
Satisfiable
(Un)Satisfiability was proved
Number of variables324
Number of constraints39
Maximum constraint arity324
Maximum domain size324
Number of constraints which are defined in extension0
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)alldifferent(1),weightedsum(38)

Solver Data (download as text)

0.23/0.23	c SAT4J: a SATisfiability library for Java (c) 2004-2008 Daniel Le Berre
0.23/0.23	c This is free software under the dual EPL/GNU LGPL licenses.
0.23/0.23	c See www.sat4j.org for details.
0.23/0.23	c That software uses the Rhino library from the Mozilla project.
0.23/0.26	c version 9.9.9.token
0.23/0.26	c sun.arch.data.model	32
0.23/0.26	c java.version	1.6.0_06
0.23/0.26	c os.name	Linux
0.23/0.26	c os.version	2.6.9-22.EL.rootsmp
0.23/0.26	c os.arch	i386
0.23/0.26	c Free memory 669864272
0.23/0.26	c Max memory 672137216
0.23/0.26	c Total memory 672137216
0.23/0.26	c Number of processors 2
0.23/0.29	c c --- Begin Solver configuration ---
0.23/0.29	c Stops conflict analysis at the first Unique Implication Point
0.23/0.29	c org.sat4j.minisat.constraints.MixedDataStructureDaniel@1d2068d
0.23/0.29	c Learn all clauses as in MiniSAT
0.23/0.29	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.23/0.29	c VSIDS like heuristics from MiniSAT using a heap phase appearing in latest learned clause
0.23/0.29	c Expensive reason simplification
0.23/0.29	c MiniSAT restarts strategy
0.23/0.29	c timeout=2147483s
0.23/0.29	c DB Simplification allowed=false
0.23/0.29	c --- End Solver configuration ---
0.23/0.29	c solving HOME/instance-1039868-1214997135.xml
0.23/0.29	c reading problem ... 
0.55/0.44	c reading problem named null
0.55/0.44	c reading domains done.
0.55/0.44	c reading variables done.
1.10/0.82	c reading constraints
1.10/0.82	c >>>> Reference not supported:  global:weightedsum <<<<
1.10/0.83	c starts		: 0
1.10/0.83	c conflicts		: 0
1.10/0.83	c decisions		: 0
1.10/0.83	c propagations		: 0
1.10/0.83	c inspects		: 0
1.10/0.83	c learnt literals	: 0
1.10/0.83	c learnt binary clauses	: 0
1.10/0.83	c learnt ternary clauses	: 0
1.10/0.83	c learnt clauses	: 0
1.10/0.83	c ignored clauses	: 0
1.10/0.83	c root simplifications	: 0
1.10/0.83	c removed literals (reason simplification)	: 0
1.10/0.83	c reason swapping (by a shorter reason)	: 0
1.10/0.83	c Calls to reduceDB	: 0
1.10/0.83	c speed (assignments/second)	: 0.0
1.10/0.83	c non guided choices	0
1.10/0.83	s UNKNOWN
1.10/0.83	c Total wall clock time (in seconds) : 0.539

Verifier Data (download as text)

ERROR: Unexpected answer ! ('s SATISFIABLE'/'s UNSATISFIABLE' expected)
Got answer: UNKNOWN

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-1039868-1214997135/watcher-1039868-1214997135 -o /tmp/evaluation-result-1039868-1214997135/solver-1039868-1214997135 -C 1800 -W 2200 -M 900 --output-limit 1,15 java6 -server -Xms650m -Xmx650m -jar HOME/sat4jcsp.jar HOME/instance-1039868-1214997135.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: 0.00 0.00 0.00 3/67 4516
/proc/meminfo: memFree=1455304/2055920 swapFree=4180972/4192956
[pid=4516] ppid=4514 vsize=152 CPUtime=0
/proc/4516/stat : 4516 (java6) R 4514 4516 4450 0 -1 0 41 0 0 0 0 0 0 0 20 0 1 0 1978688103 155648 26 996147200 134512640 134550740 4294956192 18446744073709551615 7512363 0 0 4096 0 0 0 0 17 1 0 0
/proc/4516/statm: 38 26 19 9 0 4 0

[startup+0.0520819 s]
/proc/loadavg: 0.00 0.00 0.00 3/67 4516
/proc/meminfo: memFree=1455304/2055920 swapFree=4180972/4192956
[pid=4516] ppid=4514 vsize=802236 CPUtime=0.04
/proc/4516/stat : 4516 (java) S 4514 4516 4450 0 -1 0 2614 0 1 0 3 1 0 0 18 0 7 0 1978688103 821489664 2349 996147200 134512640 134550740 4294956032 18446744073709551615 4294960144 0 0 0 16784584 18446744073709551615 0 0 17 1 0 0
/proc/4516/statm: 200559 2349 986 9 0 197942 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 802236

[startup+0.101087 s]
/proc/loadavg: 0.00 0.00 0.00 3/67 4516
/proc/meminfo: memFree=1455304/2055920 swapFree=4180972/4192956
[pid=4516] ppid=4514 vsize=804612 CPUtime=0.08
/proc/4516/stat : 4516 (java) S 4514 4516 4450 0 -1 0 3006 0 1 0 7 1 0 0 18 0 12 0 1978688103 823922688 2739 996147200 134512640 134550740 4294956032 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/4516/statm: 201153 2739 1048 9 0 198522 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 804612

[startup+0.301105 s]
/proc/loadavg: 0.00 0.00 0.00 3/67 4516
/proc/meminfo: memFree=1455304/2055920 swapFree=4180972/4192956
[pid=4516] ppid=4514 vsize=808464 CPUtime=0.4
/proc/4516/stat : 4516 (java) S 4514 4516 4450 0 -1 0 5398 0 1 0 37 3 0 0 18 0 12 0 1978688103 827867136 4725 996147200 134512640 134550740 4294956032 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/4516/statm: 202116 4725 1311 9 0 199485 0
Current children cumulated CPU time (s) 0.4
Current children cumulated vsize (KiB) 808464

[startup+0.701138 s]
/proc/loadavg: 0.00 0.00 0.00 3/67 4516
/proc/meminfo: memFree=1455304/2055920 swapFree=4180972/4192956
[pid=4516] ppid=4514 vsize=808492 CPUtime=0.94
/proc/4516/stat : 4516 (java) S 4514 4516 4450 0 -1 0 7826 0 1 0 89 5 0 0 18 0 12 0 1978688103 827895808 6417 996147200 134512640 134550740 4294956032 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/4516/statm: 202123 6417 1340 9 0 199485 0
Current children cumulated CPU time (s) 0.94
Current children cumulated vsize (KiB) 808492

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

[startup+0.801151 s]
/proc/loadavg: 0.00 0.00 0.00 3/67 4516
/proc/meminfo: memFree=1455304/2055920 swapFree=4180972/4192956
[pid=4516] ppid=4514 vsize=808492 CPUtime=1.1
/proc/4516/stat : 4516 (java) S 4514 4516 4450 0 -1 0 10475 0 1 0 104 6 0 0 18 0 12 0 1978688103 827895808 9066 996147200 134512640 134550740 4294956032 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/4516/statm: 202123 9066 1342 9 0 199485 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 808492

Child status: 0
Real time (s): 0.883796
CPU time (s): 1.14682
CPU user time (s): 1.06684
CPU system time (s): 0.079987
CPU usage (%): 129.761
Max. virtual memory (cumulated for all children) (KiB): 808996

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.06684
system time used= 0.079987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 12367
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 243
involuntary context switches= 267

runsolver used 0.003999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node15 at 2008-07-02 13:12:15
IDJOB=1039868
IDBENCH=53649
IDSOLVER=344
FILE ID=node15/1039868-1214997135
PBS_JOBID= 7870892
Free space on /tmp= 66552 MiB

SOLVER NAME= SAT4J CSP 2008-06-13
BENCH NAME= CPAI08/csp/magicSquare/normalized-magicSquare-18_glb.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-1039868-1214997135/watcher-1039868-1214997135 -o /tmp/evaluation-result-1039868-1214997135/solver-1039868-1214997135 -C 1800 -W 2200 -M 900 --output-limit 1,15  java6 -server -Xms650m -Xmx650m -jar HOME/sat4jcsp.jar HOME/instance-1039868-1214997135.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 8c9a9485571326f274e2bac46160c372
RANDOM SEED=1653580476

node15.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		: 3000.229
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		: 3000.229
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:       1455720 kB
Buffers:         59240 kB
Cached:         455144 kB
SwapCached:       6020 kB
Active:         113732 kB
Inactive:       410076 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1455720 kB
SwapTotal:     4192956 kB
SwapFree:      4180972 kB
Dirty:            1140 kB
Writeback:           0 kB
Mapped:          15200 kB
Slab:            61932 kB
Committed_AS:  3343068 kB
PageTables:       1740 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= 66548 MiB
End job on node15 at 2008-07-02 13:12:16