Trace number 2082062

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 2.52361 2.54406

DiagnosticValue
ASSIGNMENTS0
CHECKS1
NODES0

General information on the benchmark

Namecsp/super-queens/
normalized-super-queens-7.xml
MD5SUMfc9f58475a614e928f4d65ba1e610c18
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 benchmark2.52361
Satisfiable
(Un)Satisfiability was proved
Number of variables360
Number of constraints48510
Maximum constraint arity2
Maximum domain size180
Number of constraints which are defined in extension0
Number of constraints which are defined in intension48510
Global constraints used (with number of constraints)

Solver Data 

0.09/0.10	c mistral version 1.545
2.27/2.34	s UNSATISFIABLE
2.27/2.34	d CHECKS 1
2.27/2.34	d ASSIGNMENTS 0
2.27/2.34	d NODES 0 BACKTRACKS 0 FAILURES 0 RUNTIME -5.33427e-17 TOTALTIME 2.31 NODES/s -0 CHECKS/s -1.87467e+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-2082062-1247374560/watcher-2082062-1247374560 -o /tmp/evaluation-result-2082062-1247374560/solver-2082062-1247374560 -C 1800 -W 2000 -M 900 /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2082062-1247374560.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: 1.92 1.98 2.02 4/80 22917
/proc/meminfo: memFree=1538608/2055920 swapFree=4192812/4192956
[pid=22917] ppid=22915 vsize=4800 CPUtime=0
/proc/22917/stat : 22917 (ld-linux.so.2) R 22915 22917 18087 0 -1 4194304 82 0 0 0 0 0 0 0 20 0 1 0 24522298 4915200 63 996147200 1448431616 1448550632 4294956208 18446744073709551615 1448497503 0 0 4096 0 0 0 0 17 0 0 0
/proc/22917/statm: 1200 63 43 29 0 15 0

[startup+0.059271 s]
/proc/loadavg: 1.92 1.98 2.02 4/80 22917
/proc/meminfo: memFree=1538608/2055920 swapFree=4192812/4192956
[pid=22917] ppid=22915 vsize=5464 CPUtime=0.05
/proc/22917/stat : 22917 (ld-linux.so.2) R 22915 22917 18087 0 -1 4194304 570 0 0 0 5 0 0 0 20 0 1 0 24522298 5595136 549 996147200 1448431616 1448550632 4294956208 18446744073709551615 134655603 0 0 4096 0 0 0 0 17 1 0 0
/proc/22917/statm: 1366 549 376 29 0 181 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 5464

[startup+0.102275 s]
/proc/loadavg: 1.92 1.98 2.02 4/80 22917
/proc/meminfo: memFree=1538608/2055920 swapFree=4192812/4192956
[pid=22917] ppid=22915 vsize=5852 CPUtime=0.09
/proc/22917/stat : 22917 (ld-linux.so.2) R 22915 22917 18087 0 -1 4194304 665 0 0 0 9 0 0 0 20 0 1 0 24522298 5992448 644 996147200 1448431616 1448550632 4294956208 18446744073709551615 134688945 0 0 4096 0 0 0 0 17 1 0 0
/proc/22917/statm: 1463 644 376 29 0 278 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5852

[startup+0.302316 s]
/proc/loadavg: 1.92 1.98 2.02 4/80 22917
/proc/meminfo: memFree=1538608/2055920 swapFree=4192812/4192956
[pid=22917] ppid=22915 vsize=7648 CPUtime=0.29
/proc/22917/stat : 22917 (ld-linux.so.2) R 22915 22917 18087 0 -1 4194304 1108 0 0 0 29 0 0 0 22 0 1 0 24522298 7831552 1087 996147200 1448431616 1448550632 4294956208 18446744073709551615 4160505748 0 0 4096 0 0 0 0 17 1 0 0
/proc/22917/statm: 1912 1087 376 29 0 727 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7648

[startup+0.702396 s]
/proc/loadavg: 1.92 1.98 2.02 4/80 22917
/proc/meminfo: memFree=1538608/2055920 swapFree=4192812/4192956
[pid=22917] ppid=22915 vsize=11136 CPUtime=0.69
/proc/22917/stat : 22917 (ld-linux.so.2) R 22915 22917 18087 0 -1 4194304 1952 0 0 0 68 1 0 0 25 0 1 0 24522298 11403264 1931 996147200 1448431616 1448550632 4294956208 18446744073709551615 134705754 0 0 4096 0 0 0 0 17 1 0 0
/proc/22917/statm: 2784 1931 377 29 0 1599 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 11136

[startup+1.50153 s]
/proc/loadavg: 1.92 1.98 2.02 3/81 22918
/proc/meminfo: memFree=1529832/2055920 swapFree=4192812/4192956
[pid=22917] ppid=22915 vsize=17832 CPUtime=1.48
/proc/22917/stat : 22917 (ld-linux.so.2) R 22915 22917 18087 0 -1 4194304 3604 0 0 0 146 2 0 0 25 0 1 0 24522298 18259968 3583 996147200 1448431616 1448550632 4294956208 18446744073709551615 134655641 0 0 4096 0 0 0 0 17 1 0 0
/proc/22917/statm: 4458 3583 377 29 0 3273 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 17832

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

[startup+2.30169 s]
/proc/loadavg: 1.92 1.98 2.02 3/81 22918
/proc/meminfo: memFree=1521704/2055920 swapFree=4192812/4192956
[pid=22917] ppid=22915 vsize=31876 CPUtime=2.27
/proc/22917/stat : 22917 (ld-linux.so.2) R 22915 22917 18087 0 -1 4194304 7417 0 0 0 222 5 0 0 25 0 1 0 24522298 32641024 7110 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157378716 0 0 4096 0 0 0 0 17 1 0 0
/proc/22917/statm: 7969 7110 404 29 0 6784 0
Current children cumulated CPU time (s) 2.27
Current children cumulated vsize (KiB) 31876

[startup+2.50173 s]
/proc/loadavg: 1.92 1.98 2.02 3/81 22918
/proc/meminfo: memFree=1521704/2055920 swapFree=4192812/4192956
[pid=22917] ppid=22915 vsize=22076 CPUtime=2.47
/proc/22917/stat : 22917 (ld-linux.so.2) R 22915 22917 18087 0 -1 4194304 9456 0 0 0 241 6 0 0 25 0 1 0 24522298 22605824 4737 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157373632 0 0 4096 0 0 0 0 17 1 0 0
/proc/22917/statm: 5519 4737 452 29 0 4334 0
Current children cumulated CPU time (s) 2.47
Current children cumulated vsize (KiB) 22076

Child status: 0
Real time (s): 2.54406
CPU time (s): 2.52361
CPU user time (s): 2.44963
CPU system time (s): 0.073988
CPU usage (%): 99.1965
Max. virtual memory (cumulated for all children) (KiB): 40092

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.44963
system time used= 0.073988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9457
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= 92

runsolver used 0.003999 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node27 at 2009-07-12 06:56:00
IDJOB=2082062
IDBENCH=57526
IDSOLVER=769
FILE ID=node27/2082062-1247374560
PBS_JOBID= 9506986
Free space on /tmp= 66316 MiB

SOLVER NAME= Mistral 1.545
BENCH NAME= CPAI08/csp/super-queens/normalized-super-queens-7.xml
COMMAND LINE= /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2082062-1247374560/watcher-2082062-1247374560 -o /tmp/evaluation-result-2082062-1247374560/solver-2082062-1247374560 -C 1800 -W 2000 -M 900  /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2082062-1247374560.xml

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

MD5SUM BENCH= fc9f58475a614e928f4d65ba1e610c18
RANDOM SEED=1678915718

node27.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		: 2800.239
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	: 5521.40
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		: 2800.239
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:       1539088 kB
Buffers:         61980 kB
Cached:         176904 kB
SwapCached:          0 kB
Active:         365404 kB
Inactive:        87364 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1539088 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            7096 kB
Writeback:           0 kB
Mapped:         231700 kB
Slab:            48944 kB
Committed_AS:   916636 kB
PageTables:       2144 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264948 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66316 MiB
End job on node27 at 2009-07-12 06:56:03