Trace number 2058775

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 1.69574 1.69876

DiagnosticValue
ASSIGNMENTS12817
CHECKS11437900
NODES12817

General information on the benchmark

Namecsp/langford/
normalized-langford-3-11-ext.xml
MD5SUMaa3180c3777a7d99fa781939f9a51590
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 benchmark1.69574
Satisfiable
(Un)Satisfiability was proved
Number of variables33
Number of constraints550
Maximum constraint arity2
Maximum domain size33
Number of constraints which are defined in extension550
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.00/0.00	c mistral version 1.545
1.59/1.69	s UNSATISFIABLE
1.59/1.69	d CHECKS 11437887
1.59/1.69	d ASSIGNMENTS 12817
1.59/1.69	d NODES 12817 BACKTRACKS 12756 FAILURES 12757 RUNTIME 1.68 TOTALTIME 1.69 NODES/s 7629.17 CHECKS/s 6.80827e+06

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-2058775-1247322141/watcher-2058775-1247322141 -o /tmp/evaluation-result-2058775-1247322141/solver-2058775-1247322141 -C 1800 -W 2000 -M 900 /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2058775-1247322141.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: 2.14 2.00 1.92 3/81 11120
/proc/meminfo: memFree=670960/2055920 swapFree=4192956/4192956
[pid=11120] ppid=11118 vsize=4804 CPUtime=0
/proc/11120/stat : 11120 (ld-linux.so.2) R 11118 11120 10306 0 -1 4194304 182 0 0 0 0 0 0 0 18 0 1 0 19280684 4919296 163 996147200 1448431616 1448550632 4294956208 18446744073709551615 1448480482 0 0 4096 0 0 0 0 17 0 0 0
/proc/11120/statm: 1201 163 138 29 0 16 0

[startup+0.0325659 s]
/proc/loadavg: 2.14 2.00 1.92 3/81 11120
/proc/meminfo: memFree=670960/2055920 swapFree=4192956/4192956
[pid=11120] ppid=11118 vsize=5348 CPUtime=0.02
/proc/11120/stat : 11120 (ld-linux.so.2) R 11118 11120 10306 0 -1 4194304 606 0 0 0 2 0 0 0 18 0 1 0 19280684 5476352 585 996147200 1448431616 1448550632 4294956208 18446744073709551615 135117579 0 0 4096 0 0 0 0 17 0 0 0
/proc/11120/statm: 1337 585 415 29 0 152 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 5348

[startup+0.101572 s]
/proc/loadavg: 2.14 2.00 1.92 3/81 11120
/proc/meminfo: memFree=670960/2055920 swapFree=4192956/4192956
[pid=11120] ppid=11118 vsize=5348 CPUtime=0.09
/proc/11120/stat : 11120 (ld-linux.so.2) R 11118 11120 10306 0 -1 4194304 606 0 0 0 9 0 0 0 18 0 1 0 19280684 5476352 585 996147200 1448431616 1448550632 4294956208 18446744073709551615 134865397 0 0 4096 0 0 0 0 17 0 0 0
/proc/11120/statm: 1337 585 415 29 0 152 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5348

[startup+0.301597 s]
/proc/loadavg: 2.14 2.00 1.92 3/81 11120
/proc/meminfo: memFree=670960/2055920 swapFree=4192956/4192956
[pid=11120] ppid=11118 vsize=5348 CPUtime=0.29
/proc/11120/stat : 11120 (ld-linux.so.2) R 11118 11120 10306 0 -1 4194304 606 0 0 0 29 0 0 0 19 0 1 0 19280684 5476352 585 996147200 1448431616 1448550632 4294956208 18446744073709551615 135117632 0 0 4096 0 0 0 0 17 0 0 0
/proc/11120/statm: 1337 585 415 29 0 152 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5348

[startup+0.701642 s]
/proc/loadavg: 2.14 2.00 1.92 3/81 11120
/proc/meminfo: memFree=670960/2055920 swapFree=4192956/4192956
[pid=11120] ppid=11118 vsize=5480 CPUtime=0.69
/proc/11120/stat : 11120 (ld-linux.so.2) R 11118 11120 10306 0 -1 4194304 607 0 0 0 69 0 0 0 23 0 1 0 19280684 5611520 586 996147200 1448431616 1448550632 4294956208 18446744073709551615 135205031 0 0 4096 0 0 0 0 17 0 0 0
/proc/11120/statm: 1370 586 415 29 0 185 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5480

[startup+1.50173 s]
/proc/loadavg: 2.14 2.00 1.92 3/82 11121
/proc/meminfo: memFree=670304/2055920 swapFree=4192956/4192956
[pid=11120] ppid=11118 vsize=5480 CPUtime=1.49
/proc/11120/stat : 11120 (ld-linux.so.2) R 11118 11120 10306 0 -1 4194304 607 0 0 0 149 0 0 0 25 0 1 0 19280684 5611520 586 996147200 1448431616 1448550632 4294956208 18446744073709551615 134865171 0 0 4096 0 0 0 0 17 0 0 0
/proc/11120/statm: 1370 586 415 29 0 185 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5480

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

[startup+1.60175 s]
/proc/loadavg: 2.14 2.00 1.92 3/82 11121
/proc/meminfo: memFree=670304/2055920 swapFree=4192956/4192956
[pid=11120] ppid=11118 vsize=5480 CPUtime=1.59
/proc/11120/stat : 11120 (ld-linux.so.2) R 11118 11120 10306 0 -1 4194304 607 0 0 0 159 0 0 0 25 0 1 0 19280684 5611520 586 996147200 1448431616 1448550632 4294956208 18446744073709551615 135264238 0 0 4096 0 0 0 0 17 0 0 0
/proc/11120/statm: 1370 586 415 29 0 185 0
Current children cumulated CPU time (s) 1.59
Current children cumulated vsize (KiB) 5480

Child status: 0
Real time (s): 1.69876
CPU time (s): 1.69574
CPU user time (s): 1.69074
CPU system time (s): 0.004999
CPU usage (%): 99.8224
Max. virtual memory (cumulated for all children) (KiB): 5480

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.69074
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 643
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= 11

runsolver used 0.003999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node20 at 2009-07-11 16:22:21
IDJOB=2058775
IDBENCH=53521
IDSOLVER=769
FILE ID=node20/2058775-1247322141
PBS_JOBID= 9506588
Free space on /tmp= 66280 MiB

SOLVER NAME= Mistral 1.545
BENCH NAME= CPAI08/csp/langford/normalized-langford-3-11-ext.xml
COMMAND LINE= /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2058775-1247322141/watcher-2058775-1247322141 -o /tmp/evaluation-result-2058775-1247322141/solver-2058775-1247322141 -C 1800 -W 2000 -M 900  /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2058775-1247322141.xml

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

MD5SUM BENCH= aa3180c3777a7d99fa781939f9a51590
RANDOM SEED=1224832115

node20.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		: 3000.236
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		: 3000.236
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:        671440 kB
Buffers:         57388 kB
Cached:        1220740 kB
SwapCached:          0 kB
Active:         228384 kB
Inactive:      1100392 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        671440 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            1520 kB
Writeback:           0 kB
Mapped:          71012 kB
Slab:            40820 kB
Committed_AS:   193744 kB
PageTables:       1920 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= 66280 MiB
End job on node20 at 2009-07-11 16:22:23