Trace number 2060040

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
Mistral 1.545UNSAT 0.011997 0.019642

DiagnosticValue
ASSIGNMENTS1
CHECKS355
NODES1

General information on the benchmark

Namecsp/QG7/
normalized-quasigroup7-4.xml
MD5SUMaa2db5a72cb0a10253cb4c9b8eb0b732
Bench CategoryAlldiff+Elt+WSum (alldiff,element,weightedsum)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.011997
Satisfiable
(Un)Satisfiability was proved
Number of variables78
Number of constraints63
Maximum constraint arity18
Maximum domain size13
Number of constraints which are defined in extension0
Number of constraints which are defined in intension24
Global constraints used (with number of constraints)alldifferent(8),element(31)

Solver Data 

0.00/0.01	c mistral version 1.545
0.00/0.01	s UNSATISFIABLE
0.00/0.01	d CHECKS 355
0.00/0.01	d ASSIGNMENTS 1
0.00/0.01	d NODES 1 BACKTRACKS 1 FAILURES 2 RUNTIME 0 TOTALTIME 0 NODES/s 100 CHECKS/s 0

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2060040-1247325263/watcher-2060040-1247325263 -o /tmp/evaluation-result-2060040-1247325263/solver-2060040-1247325263 -C 1800 -W 2000 -M 900 /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2060040-1247325263.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: 1.91 1.91 1.90 3/73 12373
/proc/meminfo: memFree=1621816/2055920 swapFree=4191904/4192956
[pid=12373] ppid=12371 vsize=18576 CPUtime=0
/proc/12373/stat : 12373 (runsolver) R 12371 12373 11341 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 19588884 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 244276849959 0 2147483391 4096 24578 0 0 0 17 0 0 0
/proc/12373/statm: 4644 284 249 26 0 2626 0

[startup+0.0071599 s]
/proc/loadavg: 1.91 1.91 1.90 3/73 12373
/proc/meminfo: memFree=1621816/2055920 swapFree=4191904/4192956
[pid=12373] ppid=12371 vsize=2224 CPUtime=0
/proc/12373/stat : 12373 (ld-linux.so.2) R 12371 12373 11341 0 -1 4194304 48 0 0 0 0 0 0 0 20 0 1 0 19588884 2277376 33 996147200 1448431616 1448550632 4294956208 18446744073709551615 1448524651 0 0 4096 0 0 0 0 17 0 0 0
/proc/12373/statm: 556 33 25 29 0 4 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 2224

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

[startup+0.0071599 s]
/proc/loadavg: 1.91 1.91 1.90 3/73 12373
/proc/meminfo: memFree=1621816/2055920 swapFree=4191904/4192956
[pid=12373] ppid=12371 vsize=2224 CPUtime=0
/proc/12373/stat : 12373 (ld-linux.so.2) R 12371 12373 11341 0 -1 4194304 48 0 0 0 0 0 0 0 20 0 1 0 19588884 2277376 33 996147200 1448431616 1448550632 4294956208 18446744073709551615 1448524651 0 0 4096 0 0 0 0 17 0 0 0
/proc/12373/statm: 556 33 25 29 0 4 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 2224

Child status: 0
Real time (s): 0.019642
CPU time (s): 0.011997
CPU user time (s): 0.007998
CPU system time (s): 0.003999
CPU usage (%): 61.0783
Max. virtual memory (cumulated for all children) (KiB): 2224

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.007998
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 574
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 24
involuntary context switches= 1

runsolver used 0.003999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node63 at 2009-07-11 17:14:23
IDJOB=2060040
IDBENCH=53641
IDSOLVER=769
FILE ID=node63/2060040-1247325263
PBS_JOBID= 9506504
Free space on /tmp= 66220 MiB

SOLVER NAME= Mistral 1.545
BENCH NAME= CPAI08/csp/QG7/normalized-quasigroup7-4.xml
COMMAND LINE= /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2060040-1247325263/watcher-2060040-1247325263 -o /tmp/evaluation-result-2060040-1247325263/solver-2060040-1247325263 -C 1800 -W 2000 -M 900  /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2060040-1247325263.xml

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

MD5SUM BENCH= aa2db5a72cb0a10253cb4c9b8eb0b732
RANDOM SEED=905624818

node63.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		: 3000.232
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		: 3000.232
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:       1622296 kB
Buffers:         28424 kB
Cached:         334096 kB
SwapCached:        260 kB
Active:          61856 kB
Inactive:       320816 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1622296 kB
SwapTotal:     4192956 kB
SwapFree:      4191904 kB
Dirty:            1292 kB
Writeback:           0 kB
Mapped:          30240 kB
Slab:            36148 kB
Committed_AS:   205004 kB
PageTables:       1832 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= 66220 MiB
End job on node63 at 2009-07-11 17:14:23