Trace number 1100601

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
MDG-noprobe 2008-06-27UNSAT 0.84887 0.853695

DiagnosticValue
ASSIGNMENTS1028
CHECKS203804

General information on the benchmark

Namecsp/tightness0.9/
normalized-rand-2-40-180-84-900-93_ext.xml
MD5SUM891b7ac12db688afc51d70a7c6a04c31
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.84887
Satisfiable
(Un)Satisfiability was proved
Number of variables40
Number of constraints84
Maximum constraint arity2
Maximum domain size180
Number of constraints which are defined in extension84
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.09/0.10	c mistral-prime version 1.313
0.78/0.83	s UNSATISFIABLE
0.78/0.83	d CHECKS 203804
0.78/0.83	d ASSIGNMENTS 1028

Verifier Data (download as text)

No possible verification on an UNSAT instance

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-1100601-1215287443/watcher-1100601-1215287443 -o /tmp/evaluation-result-1100601-1215287443/solver-1100601-1215287443 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1100601-1215287443.xml -heu dom/wdeg -res no 

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

[startup+0 s]
/proc/loadavg: 2.00 2.04 2.01 3/88 7460
/proc/meminfo: memFree=1576368/2055920 swapFree=4178892/4192956
[pid=7460] ppid=7458 vsize=18572 CPUtime=0
/proc/7460/stat : 7460 (runsolver) R 7458 4015 4015 0 -1 4194368 10 0 0 0 0 0 0 0 20 0 1 0 684473281 19017728 290 996147200 4194304 4296836 548682068432 18446744073709551615 240151197388 0 0 4096 24578 0 0 0 17 0 0 0
/proc/7460/statm: 4643 290 255 25 0 2626 0
Current StackSize limit: 10240 KiB


[startup+0.0562709 s]
/proc/loadavg: 2.00 2.04 2.01 3/88 7460
/proc/meminfo: memFree=1576368/2055920 swapFree=4178892/4192956
[pid=7460] ppid=7458 vsize=5652 CPUtime=0.04
/proc/7460/stat : 7460 (xsolve) R 7458 7460 4015 0 -1 4194304 705 0 0 0 4 0 0 0 20 0 1 0 684473281 5787648 671 996147200 134512640 135239859 4294956208 18446744073709551615 4159773995 0 0 4096 0 0 0 0 17 0 0 0
/proc/7460/statm: 1413 671 350 177 0 316 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 5652

[startup+0.102274 s]
/proc/loadavg: 2.00 2.04 2.01 3/88 7460
/proc/meminfo: memFree=1576368/2055920 swapFree=4178892/4192956
[pid=7460] ppid=7458 vsize=6716 CPUtime=0.09
/proc/7460/stat : 7460 (xsolve) R 7458 7460 4015 0 -1 4194304 971 0 0 0 9 0 0 0 20 0 1 0 684473281 6877184 937 996147200 134512640 135239859 4294956208 18446744073709551615 134573960 0 0 4096 0 0 0 0 17 0 0 0
/proc/7460/statm: 1679 937 350 177 0 582 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6716

[startup+0.302301 s]
/proc/loadavg: 2.00 2.04 2.01 3/88 7460
/proc/meminfo: memFree=1576368/2055920 swapFree=4178892/4192956
[pid=7460] ppid=7458 vsize=11484 CPUtime=0.28
/proc/7460/stat : 7460 (xsolve) R 7458 7460 4015 0 -1 4194304 2197 0 0 0 28 0 0 0 22 0 1 0 684473281 11759616 2163 996147200 134512640 135239859 4294956208 18446744073709551615 135095232 0 0 4096 0 0 0 0 17 0 0 0
/proc/7460/statm: 2871 2163 386 177 0 1774 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 11484

[startup+0.702337 s]
/proc/loadavg: 2.00 2.04 2.01 3/88 7460
/proc/meminfo: memFree=1576368/2055920 swapFree=4178892/4192956
[pid=7460] ppid=7458 vsize=11496 CPUtime=0.68
/proc/7460/stat : 7460 (xsolve) R 7458 7460 4015 0 -1 4194304 2200 0 0 0 68 0 0 0 25 0 1 0 684473281 11771904 2166 996147200 134512640 135239859 4294956208 18446744073709551615 135031323 0 0 4096 0 0 0 0 17 0 0 0
/proc/7460/statm: 2874 2166 386 177 0 1777 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 11496

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

[startup+0.802349 s]
/proc/loadavg: 2.00 2.04 2.01 3/88 7460
/proc/meminfo: memFree=1576368/2055920 swapFree=4178892/4192956
[pid=7460] ppid=7458 vsize=11500 CPUtime=0.78
/proc/7460/stat : 7460 (xsolve) R 7458 7460 4015 0 -1 4194304 2201 0 0 0 78 0 0 0 25 0 1 0 684473281 11776000 2167 996147200 134512640 135239859 4294956208 18446744073709551615 135087249 0 0 4096 0 0 0 0 17 0 0 0
/proc/7460/statm: 2875 2167 386 177 0 1778 0
Current children cumulated CPU time (s) 0.78
Current children cumulated vsize (KiB) 11500

Child status: 0
Real time (s): 0.853695
CPU time (s): 0.84887
CPU user time (s): 0.837872
CPU system time (s): 0.010998
CPU usage (%): 99.4348
Max. virtual memory (cumulated for all children) (KiB): 11500

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.837872
system time used= 0.010998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2217
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= 6
involuntary context switches= 18

runsolver used 0.003999 second user time and 0.003999 second system time

The end

Launcher Data (download as text)

Begin job on node86 at 2008-07-05 21:50:43
IDJOB=1100601
IDBENCH=59945
IDSOLVER=343
FILE ID=node86/1100601-1215287443
PBS_JOBID= 7882287
Free space on /tmp= 66556 MiB

SOLVER NAME= MDG-noprobe 2008-06-27
BENCH NAME= CPAI08/csp/tightness0.9/normalized-rand-2-40-180-84-900-93_ext.xml
COMMAND LINE= HOME/xsolve BENCHNAME -heu dom/wdeg -res no 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1100601-1215287443/watcher-1100601-1215287443 -o /tmp/evaluation-result-1100601-1215287443/solver-1100601-1215287443 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1100601-1215287443.xml -heu dom/wdeg -res no 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 891b7ac12db688afc51d70a7c6a04c31
RANDOM SEED=1346633537

node86.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		: 3000.220
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		: 3000.220
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:       1576848 kB
Buffers:        102168 kB
Cached:         283732 kB
SwapCached:       6392 kB
Active:         288848 kB
Inactive:       134688 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1576848 kB
SwapTotal:     4192956 kB
SwapFree:      4178892 kB
Dirty:            2756 kB
Writeback:           0 kB
Mapped:          51132 kB
Slab:            40052 kB
Committed_AS:  1320052 kB
PageTables:       2444 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= 66556 MiB
End job on node86 at 2008-07-05 21:50:44