Trace number 2058434

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 1.545SAT 0.687895 0.690559

DiagnosticValue
ASSIGNMENTS5390
CHECKS2224160
NODES5390

General information on the benchmark

Namecsp/QWH-20/
normalized-qwh-20-166-4_ext.xml
MD5SUMc4b81bea44816f9c3ef614f329f1ceb5
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.353946
Satisfiable
(Un)Satisfiability was proved
Number of variables400
Number of constraints5092
Maximum constraint arity2
Maximum domain size20
Number of constraints which are defined in extension5092
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
0.59/0.68	s SATISFIABLE
0.59/0.68	v 15 19 0 3 18 17 16 1 7 4 5 10 8 13 6 14 12 9 2 11 18 9 15 1 7 16 4 8 12 14 13 11 0 6 17 5 3 2 10 19 13 6 17 9 8 2 14 12 19 0 11 16 15 5 3 1 10 4 7 18 19 0 11 5 1 7 13 16 9 2 12 8 4 10 14 18 6 3 15 17 5 1 3 17 15 11 18 7 4 19 9 14 6 2 13 0 16 12 8 10 10 4 16 2 12 19 3 15 0 9 7 17 11 8 5 6 1 13 18 14 0 17 6 14 13 9 12 18 8 15 16 19 7 3 10 4 2 11 5 1 17 2 13 15 11 8 6 10 18 12 19 5 3 1 9 16 0 7 14 4 3 7 14 11 10 6 1 9 13 5 2 12 19 17 18 15 8 0 4 16 14 10 7 16 9 18 19 5 15 8 3 1 13 4 0 17 11 6 12 2 8 18 10 12 0 14 5 4 16 3 6 2 1 19 7 11 17 15 9 13 16 12 9 6 17 5 2 14 1 18 0 4 10 7 15 8 13 19 11 3 7 11 19 18 3 13 15 17 5 1 10 6 14 0 2 12 4 8 16 9 9 14 4 13 6 0 10 2 17 7 8 15 12 11 19 3 18 16 1 5 6 8 12 10 14 3 9 0 11 16 4 13 2 18 1 19 7 5 17 15 11 5 2 4 16 10 0 6 3 13 17 18 9 14 8 7 15 1 19 12 4 3 18 0 19 12 17 13 14 11 1 7 5 15 16 2 9 10 6 8 1 13 8 19 5 4 7 11 2 17 15 3 16 9 12 10 14 18 0 6 12 15 5 8 2 1 11 3 10 6 14 0 18 16 4 9 19 17 13 7 2 16 1 7 4 15 8 19 6 10 18 9 17 12 11 13 5 14 3 0
0.59/0.68	d CHECKS 2224157
0.59/0.68	d ASSIGNMENTS 5390
0.59/0.68	d NODES 5390 BACKTRACKS 5301 FAILURES 5301 RUNTIME 0.54 TOTALTIME 0.67 NODES/s 9981.48 CHECKS/s 4.11881e+06

Verifier Data 

OK

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2058434-1247321654/watcher-2058434-1247321654 -o /tmp/evaluation-result-2058434-1247321654/solver-2058434-1247321654 -C 1800 -W 2000 -M 900 /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2058434-1247321654.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: 2.00 2.02 1.95 4/77 10834
/proc/meminfo: memFree=1082496/2055920 swapFree=4192956/4192956
[pid=10834] ppid=10832 vsize=4804 CPUtime=0
/proc/10834/stat : 10834 (ld-linux.so.2) R 10832 10834 10254 0 -1 4194304 195 0 0 0 0 0 0 0 18 0 1 0 19228684 4919296 176 996147200 1448431616 1448550632 4294956208 18446744073709551615 1448481051 0 0 4096 0 0 0 0 17 0 0 0
/proc/10834/statm: 1201 176 148 29 0 16 0

[startup+0.0250439 s]
/proc/loadavg: 2.00 2.02 1.95 4/77 10834
/proc/meminfo: memFree=1082496/2055920 swapFree=4192956/4192956
[pid=10834] ppid=10832 vsize=5208 CPUtime=0.02
/proc/10834/stat : 10834 (ld-linux.so.2) R 10832 10834 10254 0 -1 4194304 500 0 0 0 2 0 0 0 18 0 1 0 19228684 5332992 479 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157381179 0 0 4096 0 0 0 0 17 0 0 0
/proc/10834/statm: 1302 479 367 29 0 117 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 5208

[startup+0.101052 s]
/proc/loadavg: 2.00 2.02 1.95 4/77 10834
/proc/meminfo: memFree=1082496/2055920 swapFree=4192956/4192956
[pid=10834] ppid=10832 vsize=6000 CPUtime=0.09
/proc/10834/stat : 10834 (ld-linux.so.2) R 10832 10834 10254 0 -1 4194304 705 0 0 0 9 0 0 0 18 0 1 0 19228684 6144000 684 996147200 1448431616 1448550632 4294956208 18446744073709551615 134970865 0 0 4096 0 0 0 0 17 0 0 0
/proc/10834/statm: 1500 684 367 29 0 315 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6000

[startup+0.301071 s]
/proc/loadavg: 2.00 2.02 1.95 4/77 10834
/proc/meminfo: memFree=1082496/2055920 swapFree=4192956/4192956
[pid=10834] ppid=10832 vsize=7424 CPUtime=0.29
/proc/10834/stat : 10834 (ld-linux.so.2) R 10832 10834 10254 0 -1 4194304 1133 0 0 0 29 0 0 0 19 0 1 0 19228684 7602176 1087 996147200 1448431616 1448550632 4294956208 18446744073709551615 135117627 0 0 4096 0 0 0 0 17 0 0 0
/proc/10834/statm: 1856 1087 417 29 0 671 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7424

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

[startup+0.501091 s]
/proc/loadavg: 2.00 2.02 1.95 4/77 10834
/proc/meminfo: memFree=1082496/2055920 swapFree=4192956/4192956
[pid=10834] ppid=10832 vsize=7424 CPUtime=0.49
/proc/10834/stat : 10834 (ld-linux.so.2) R 10832 10834 10254 0 -1 4194304 1133 0 0 0 49 0 0 0 21 0 1 0 19228684 7602176 1087 996147200 1448431616 1448550632 4294956208 18446744073709551615 134814448 0 0 4096 0 0 0 0 17 0 0 0
/proc/10834/statm: 1856 1087 417 29 0 671 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 7424

[startup+0.6011 s]
/proc/loadavg: 2.00 2.02 1.95 4/77 10834
/proc/meminfo: memFree=1082496/2055920 swapFree=4192956/4192956
[pid=10834] ppid=10832 vsize=7424 CPUtime=0.59
/proc/10834/stat : 10834 (ld-linux.so.2) R 10832 10834 10254 0 -1 4194304 1133 0 0 0 59 0 0 0 22 0 1 0 19228684 7602176 1087 996147200 1448431616 1448550632 4294956208 18446744073709551615 135264340 0 0 4096 0 0 0 0 17 0 0 0
/proc/10834/statm: 1856 1087 417 29 0 671 0
Current children cumulated CPU time (s) 0.59
Current children cumulated vsize (KiB) 7424

Child status: 0
Real time (s): 0.690559
CPU time (s): 0.687895
CPU user time (s): 0.681896
CPU system time (s): 0.005999
CPU usage (%): 99.6142
Max. virtual memory (cumulated for all children) (KiB): 7424

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.681896
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1174
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= 15
involuntary context switches= 8

runsolver used 0.001999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node56 at 2009-07-11 16:14:14
IDJOB=2058434
IDBENCH=53490
IDSOLVER=769
FILE ID=node56/2058434-1247321654
PBS_JOBID= 9506517
Free space on /tmp= 103036 MiB

SOLVER NAME= Mistral 1.545
BENCH NAME= CPAI08/csp/QWH-20/normalized-qwh-20-166-4_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-2058434-1247321654/watcher-2058434-1247321654 -o /tmp/evaluation-result-2058434-1247321654/solver-2058434-1247321654 -C 1800 -W 2000 -M 900  /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2058434-1247321654.xml

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

MD5SUM BENCH= c4b81bea44816f9c3ef614f329f1ceb5
RANDOM SEED=1609516700

node56.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		: 3000.209
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		: 3000.209
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:       1082976 kB
Buffers:         56976 kB
Cached:         829200 kB
SwapCached:          0 kB
Active:         138888 kB
Inactive:       780452 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1082976 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            1760 kB
Writeback:           0 kB
Mapped:          43860 kB
Slab:            38788 kB
Committed_AS:   228676 kB
PageTables:       1868 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= 103032 MiB
End job on node56 at 2009-07-11 16:14:14