Trace number 2082040

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 0.687894 0.690214

DiagnosticValue
ASSIGNMENTS0
CHECKS1
NODES0

General information on the benchmark

Namecsp/super-queens/
normalized-super-queens-14.xml
MD5SUM14c2fce2e4d4e8fdcde4ad542c4fc2d2
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 benchmark0.687894
Satisfiable
(Un)Satisfiability was proved
Number of variables160
Number of constraints9560
Maximum constraint arity2
Maximum domain size80
Number of constraints which are defined in extension0
Number of constraints which are defined in intension9560
Global constraints used (with number of constraints)

Solver Data 

0.00/0.00	c mistral version 1.545
0.49/0.54	s UNSATISFIABLE
0.49/0.54	d CHECKS 1
0.49/0.54	d ASSIGNMENTS 0
0.49/0.54	d NODES 0 BACKTRACKS 0 FAILURES 0 RUNTIME -2.66714e-17 TOTALTIME 0.53 NODES/s -0 CHECKS/s -3.74934e+16

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-2082040-1247374525/watcher-2082040-1247374525 -o /tmp/evaluation-result-2082040-1247374525/solver-2082040-1247374525 -C 1800 -W 2000 -M 900 /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2082040-1247374525.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: 2.15 2.09 2.02 4/76 27377
/proc/meminfo: memFree=1621584/2055920 swapFree=4192952/4192956
[pid=27377] ppid=27375 vsize=4804 CPUtime=0
/proc/27377/stat : 27377 (ld-linux.so.2) R 27375 27377 22504 0 -1 4194304 181 0 0 0 0 0 0 0 18 0 1 0 24515252 4919296 162 996147200 1448431616 1448550632 4294956208 18446744073709551615 1448480482 0 0 4096 0 0 0 0 17 0 0 0
/proc/27377/statm: 1201 163 138 29 0 16 0

[startup+0.0364501 s]
/proc/loadavg: 2.15 2.09 2.02 4/76 27377
/proc/meminfo: memFree=1621584/2055920 swapFree=4192952/4192956
[pid=27377] ppid=27375 vsize=5592 CPUtime=0.02
/proc/27377/stat : 27377 (ld-linux.so.2) R 27375 27377 22504 0 -1 4194304 621 0 0 0 2 0 0 0 18 0 1 0 24515252 5726208 600 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157381179 0 0 4096 0 0 0 0 17 0 0 0
/proc/27377/statm: 1398 600 378 29 0 213 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 5592

[startup+0.102159 s]
/proc/loadavg: 2.15 2.09 2.02 4/76 27377
/proc/meminfo: memFree=1621584/2055920 swapFree=4192952/4192956
[pid=27377] ppid=27375 vsize=7188 CPUtime=0.09
/proc/27377/stat : 27377 (ld-linux.so.2) R 27375 27377 22504 0 -1 4194304 1004 0 0 0 9 0 0 0 18 0 1 0 24515252 7360512 983 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157385629 0 0 4096 0 0 0 0 17 0 0 0
/proc/27377/statm: 1797 992 378 29 0 612 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7188

[startup+0.301192 s]
/proc/loadavg: 2.15 2.09 2.02 4/76 27377
/proc/meminfo: memFree=1621584/2055920 swapFree=4192952/4192956
[pid=27377] ppid=27375 vsize=11700 CPUtime=0.29
/proc/27377/stat : 27377 (ld-linux.so.2) R 27375 27377 22504 0 -1 4194304 2111 0 0 0 27 2 0 0 19 0 1 0 24515252 11980800 2090 996147200 1448431616 1448550632 4294956208 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/27377/statm: 2925 2090 379 29 0 1740 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11700

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

[startup+0.501229 s]
/proc/loadavg: 2.15 2.09 2.02 4/76 27377
/proc/meminfo: memFree=1621584/2055920 swapFree=4192952/4192956
[pid=27377] ppid=27375 vsize=36100 CPUtime=0.49
/proc/27377/stat : 27377 (ld-linux.so.2) R 27375 27377 22504 0 -1 4194304 8266 0 0 0 45 4 0 0 21 0 1 0 24515252 36966400 8206 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157381179 0 0 4096 0 0 0 0 17 0 0 0
/proc/27377/statm: 9025 8211 407 29 0 7840 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 36100

[startup+0.601244 s]
/proc/loadavg: 2.15 2.09 2.02 4/76 27377
/proc/meminfo: memFree=1621584/2055920 swapFree=4192952/4192956
[pid=27377] ppid=27375 vsize=51116 CPUtime=0.59
/proc/27377/stat : 27377 (ld-linux.so.2) R 27375 27377 22504 0 -1 4194304 12038 0 0 0 53 6 0 0 22 0 1 0 24515252 52342784 11978 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157378258 0 0 4096 0 0 0 0 17 0 0 0
/proc/27377/statm: 12779 11978 446 29 0 11594 0
Current children cumulated CPU time (s) 0.59
Current children cumulated vsize (KiB) 51116

Child status: 0
Real time (s): 0.690214
CPU time (s): 0.687894
CPU user time (s): 0.614906
CPU system time (s): 0.072988
CPU usage (%): 99.6639
Max. virtual memory (cumulated for all children) (KiB): 51116

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.614906
system time used= 0.072988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 12047
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= 7

runsolver used 0.001999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node68 at 2009-07-12 06:55:26
IDJOB=2082040
IDBENCH=57524
IDSOLVER=769
FILE ID=node68/2082040-1247374525
PBS_JOBID= 9507085
Free space on /tmp= 66452 MiB

SOLVER NAME= Mistral 1.545
BENCH NAME= CPAI08/csp/super-queens/normalized-super-queens-14.xml
COMMAND LINE= /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2082040-1247374525/watcher-2082040-1247374525 -o /tmp/evaluation-result-2082040-1247374525/solver-2082040-1247374525 -C 1800 -W 2000 -M 900  /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2082040-1247374525.xml

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

MD5SUM BENCH= 14c2fce2e4d4e8fdcde4ad542c4fc2d2
RANDOM SEED=1453711203

node68.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		: 3000.258
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		: 3000.258
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:       1622064 kB
Buffers:         75484 kB
Cached:         215552 kB
SwapCached:          4 kB
Active:         196328 kB
Inactive:       161160 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1622064 kB
SwapTotal:     4192956 kB
SwapFree:      4192952 kB
Dirty:            2632 kB
Writeback:           0 kB
Mapped:          77376 kB
Slab:            61304 kB
Committed_AS:   302488 kB
PageTables:       2024 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= 66452 MiB
End job on node68 at 2009-07-12 06:55:26