Trace number 1092714

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
galac EUNSAT 1.56876 1.63864

General information on the benchmark

Namecsp/langford4/
normalized-langford-4-4.xml
MD5SUMb37d50180c85d43bb3d8c25e0f871b0d
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 benchmark0.009997
Satisfiable
(Un)Satisfiability was proved
Number of variables16
Number of constraints132
Maximum constraint arity2
Maximum domain size16
Number of constraints which are defined in extension0
Number of constraints which are defined in intension132
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.03	c --- Preproc Stats ---
0.01/0.91	c start processing
0.01/0.91	c start relation processing
0.01/0.92	c start cnf exporting
1.06/1.15	c parsing time : 0.785
1.06/1.15	c preprocessing time : 1.026
1.06/1.15	
1.06/1.15	c Nary constraints - conflicts : 0 supports : 0
1.06/1.15	c Binary constraints - conflicts : 120 supports :12
1.06/1.15	c max arity constraint : 2
1.06/1.15	c Max Tuples generated 256
1.06/1.15	c relations : 5
1.06/1.15	c relations BDD: 0
1.06/1.15	c sampling 0/0
1.06/1.15	c vars : 257 - clauses :  4156
1.06/1.15	
1.06/1.20	 
1.06/1.20	c --- SAT Solver Stats ---
1.06/1.20	 
1.06/1.20	c eSAT 0.1 : minisat core with additionnal features
1.06/1.20	c ============================[ Problem Statistics ]=============================
1.06/1.20	c |                                                                             |
1.06/1.20	c |  Number of variables:  256                                                  |
1.06/1.20	c |  Number of clauses:    4156                                                 |
1.12/1.20	c |  Parsing time:         0.00         s                                       |
1.12/1.20	c Solved by unit propagation
1.12/1.20	s UNSATISFIABLE
1.13/1.58	java.io.FileNotFoundException: HOME/instance-1092714-1215276963.xml.cnf.res (No such file or directory)
1.13/1.58		at java.io.FileInputStream.open(Native Method)
1.13/1.58		at java.io.FileInputStream.(Unknown Source)
1.13/1.58		at java.util.Scanner.(Unknown Source)
1.13/1.58		at base.SatSolToCSPSol.toCSPSolution(SatSolToCSPSol.java:73)
1.13/1.58		at base.SatSolToCSPSol.main(SatSolToCSPSol.java:179)
1.13/1.63	v

Verifier Data (download as text)

ERROR: no interpretation found !

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-1092714-1215276963/watcher-1092714-1215276963 -o /tmp/evaluation-result-1092714-1215276963/solver-1092714-1215276963 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/galacE.sh HOME/instance-1092714-1215276963.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: 1.91 1.95 1.98 4/72 17266
/proc/meminfo: memFree=1742384/2055920 swapFree=4179416/4192956
[pid=17266] ppid=17264 vsize=18572 CPUtime=0
/proc/17266/stat : 17266 (runsolver) R 17264 17266 16175 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 2006668062 19017728 292 996147200 4194304 4296836 548682068496 18446744073709551615 236437695783 0 0 4096 24578 0 0 0 17 1 0 0
/proc/17266/statm: 4643 292 257 25 0 2626 0

[startup+0.054779 s]
/proc/loadavg: 1.91 1.95 1.98 4/72 17266
/proc/meminfo: memFree=1742384/2055920 swapFree=4179416/4192956
[pid=17266] ppid=17264 vsize=47580 CPUtime=0.01
/proc/17266/stat : 17266 (galacE.sh) S 17264 17266 16175 0 -1 4194304 765 1697 0 0 0 0 0 1 18 0 1 0 2006668062 48721920 364 996147200 4194304 4520092 548682068832 18446744073709551615 236437302106 0 2 4096 73728 18446744071563181037 0 0 17 1 0 0
/proc/17266/statm: 11895 364 245 79 0 219 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 47580

[startup+0.101698 s]
/proc/loadavg: 1.91 1.95 1.98 4/72 17266
/proc/meminfo: memFree=1742384/2055920 swapFree=4179416/4192956
[pid=17266] ppid=17264 vsize=47580 CPUtime=0.01
/proc/17266/stat : 17266 (galacE.sh) S 17264 17266 16175 0 -1 4194304 765 1697 0 0 0 0 0 1 18 0 1 0 2006668062 48721920 364 996147200 4194304 4520092 548682068832 18446744073709551615 236437302106 0 2 4096 73728 18446744071563181037 0 0 17 1 0 0
/proc/17266/statm: 11895 364 245 79 0 219 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 47580

[startup+0.30174 s]
/proc/loadavg: 1.91 1.95 1.98 4/72 17266
/proc/meminfo: memFree=1742384/2055920 swapFree=4179416/4192956
[pid=17266] ppid=17264 vsize=47580 CPUtime=0.01
/proc/17266/stat : 17266 (galacE.sh) S 17264 17266 16175 0 -1 4194304 765 1697 0 0 0 0 0 1 18 0 1 0 2006668062 48721920 364 996147200 4194304 4520092 548682068832 18446744073709551615 236437302106 0 2 4096 73728 18446744071563181037 0 0 17 1 0 0
/proc/17266/statm: 11895 364 245 79 0 219 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 47580

[startup+0.701816 s]
/proc/loadavg: 1.91 1.95 1.98 4/72 17266
/proc/meminfo: memFree=1742384/2055920 swapFree=4179416/4192956
[pid=17266] ppid=17264 vsize=47580 CPUtime=0.01
/proc/17266/stat : 17266 (galacE.sh) S 17264 17266 16175 0 -1 4194304 765 1697 0 0 0 0 0 1 18 0 1 0 2006668062 48721920 364 996147200 4194304 4520092 548682068832 18446744073709551615 236437302106 0 2 4096 73728 18446744071563181037 0 0 17 1 0 0
/proc/17266/statm: 11895 364 245 79 0 219 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 47580

[startup+1.50197 s]
/proc/loadavg: 1.91 1.95 1.98 4/82 17288
/proc/meminfo: memFree=1701720/2055920 swapFree=4179416/4192956
[pid=17266] ppid=17264 vsize=47580 CPUtime=1.13
/proc/17266/stat : 17266 (galacE.sh) S 17264 17266 16175 0 -1 4194304 835 15209 0 1 0 0 103 10 17 0 1 0 2006668062 48721920 365 996147200 4194304 4520092 548682068832 18446744073709551615 236437864530 0 0 4096 73728 18446744071563648864 0 0 17 1 0 0
/proc/17266/statm: 11895 365 245 79 0 219 0
Current children cumulated CPU time (s) 1.13
Current children cumulated vsize (KiB) 47580

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

[startup+1.60199 s]
/proc/loadavg: 1.91 1.95 1.98 4/82 17288
/proc/meminfo: memFree=1701720/2055920 swapFree=4179416/4192956
[pid=17266] ppid=17264 vsize=47580 CPUtime=1.13
/proc/17266/stat : 17266 (galacE.sh) S 17264 17266 16175 0 -1 4194304 835 15209 0 1 0 0 103 10 17 0 1 0 2006668062 48721920 365 996147200 4194304 4520092 548682068832 18446744073709551615 236437864530 0 0 4096 73728 18446744071563648864 0 0 17 1 0 0
/proc/17266/statm: 11895 365 245 79 0 219 0
Current children cumulated CPU time (s) 1.13
Current children cumulated vsize (KiB) 47580

Child status: 0
Real time (s): 1.63864
CPU time (s): 1.56876
CPU user time (s): 1.40479
CPU system time (s): 0.163975
CPU usage (%): 95.7358
Max. virtual memory (cumulated for all children) (KiB): 860340

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.40479
system time used= 0.163975
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 21513
page faults= 2
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 969
involuntary context switches= 891

runsolver used 0.006998 second user time and 0.012998 second system time

The end

Launcher Data (download as text)

Begin job on node62 at 2008-07-05 18:56:03
IDJOB=1092714
IDBENCH=58650
IDSOLVER=351
FILE ID=node62/1092714-1215276963
PBS_JOBID= 7882239
Free space on /tmp= 65256 MiB

SOLVER NAME= galac E
BENCH NAME= CPAI08/csp/langford4/normalized-langford-4-4.xml
COMMAND LINE= HOME/galacE.sh BENCHNAME 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1092714-1215276963/watcher-1092714-1215276963 -o /tmp/evaluation-result-1092714-1215276963/solver-1092714-1215276963 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/galacE.sh HOME/instance-1092714-1215276963.xml 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= b37d50180c85d43bb3d8c25e0f871b0d
RANDOM SEED=531590329

node62.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		: 3000.259
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		: 3000.259
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:       1742864 kB
Buffers:         38624 kB
Cached:         190244 kB
SwapCached:       7024 kB
Active:         175188 kB
Inactive:        82052 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1742864 kB
SwapTotal:     4192956 kB
SwapFree:      4179416 kB
Dirty:            3088 kB
Writeback:           0 kB
Mapped:          35508 kB
Slab:            41044 kB
Committed_AS:  4103712 kB
PageTables:       1848 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= 65252 MiB
End job on node62 at 2008-07-05 18:56:05