Trace number 1055852

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
mddc-solv 2008-06-09SAT 0.314951 0.321356

DiagnosticValue
CHECKS34882

General information on the benchmark

Namecsp/travellingSalesman-20/
normalized-tsp-20-8_ext.xml
MD5SUMbf163617dfabfacac1751e8d2d93f3ed
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.06199
Satisfiable
(Un)Satisfiability was proved
Number of variables61
Number of constraints230
Maximum constraint arity3
Maximum domain size1001
Number of constraints which are defined in extension230
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.18/0.20	c loading... 0.17 secs
0.18/0.20	c smallest 5
0.18/0.20	c largest 255
0.18/0.20	c average 30.7826
0.18/0.20	
0.28/0.31	s SATISFIABLE
0.28/0.31	v 2 12 12 7 11 3 14 7 6 22 10 6 20 7 13 5 16 10 17 2 7 0 9 14 3 1 5 8 18 6 15 7 1 3 4 1 8 4 19 0 19 22 29 51 57 64 69 79 81 81 95 96 104 110 117 120 121 125 125 125 0
0.28/0.31	d CHECKS 34882
0.28/0.31	c FAILS 43
0.28/0.32	c RESTARTS 0

Verifier Data (download as text)

OK

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-1055852-1215060436/watcher-1055852-1215060436 -o /tmp/evaluation-result-1055852-1215060436/solver-1055852-1215060436 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/solver HOME/instance-1055852-1215060436.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): 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.00 2.01 2.00 4/72 31262
/proc/meminfo: memFree=1784760/2055920 swapFree=4180076/4192956
[pid=31262] ppid=31260 vsize=364 CPUtime=0
/proc/31262/stat : 31262 (solver) R 31260 31262 27392 0 -1 4194304 39 0 0 0 0 0 0 0 19 0 1 0 1985017605 372736 25 996147200 134512640 134773262 4294956256 18446744073709551615 1172260 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/31262/statm: 91 25 19 63 0 3 0

[startup+0.0816499 s]
/proc/loadavg: 2.00 2.01 2.00 4/72 31262
/proc/meminfo: memFree=1784760/2055920 swapFree=4180076/4192956
[pid=31262] ppid=31260 vsize=10616 CPUtime=0.06
/proc/31262/stat : 31262 (solver) R 31260 31262 27392 0 -1 4194304 1860 0 0 0 6 0 0 0 18 0 1 0 1985017605 10870784 1807 996147200 134512640 134773262 4294956256 18446744073709551615 134604291 0 0 4096 0 0 0 0 17 1 0 0
/proc/31262/statm: 2654 1807 338 63 0 1671 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 10616

[startup+0.101636 s]
/proc/loadavg: 2.00 2.01 2.00 4/72 31262
/proc/meminfo: memFree=1784760/2055920 swapFree=4180076/4192956
[pid=31262] ppid=31260 vsize=10616 CPUtime=0.08
/proc/31262/stat : 31262 (solver) R 31260 31262 27392 0 -1 4194304 1864 0 0 0 8 0 0 0 18 0 1 0 1985017605 10870784 1811 996147200 134512640 134773262 4294956256 18446744073709551615 134575758 0 0 4096 0 0 0 0 17 1 0 0
/proc/31262/statm: 2654 1811 338 63 0 1671 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 10616

[startup+0.301658 s]
/proc/loadavg: 2.00 2.01 2.00 4/72 31262
/proc/meminfo: memFree=1784760/2055920 swapFree=4180076/4192956
[pid=31262] ppid=31260 vsize=6928 CPUtime=0.28
/proc/31262/stat : 31262 (solver) R 31260 31262 27392 0 -1 4194304 2022 0 0 0 28 0 0 0 19 0 1 0 1985017605 7094272 943 996147200 134512640 134773262 4294956256 18446744073709551615 134529671 0 0 4096 0 0 0 0 17 1 0 0
/proc/31262/statm: 1732 943 364 63 0 749 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 6928

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

Child status: 0
Real time (s): 0.321356
CPU time (s): 0.314951
CPU user time (s): 0.304953
CPU system time (s): 0.009998
CPU usage (%): 98.0069
Max. virtual memory (cumulated for all children) (KiB): 10616

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.304953
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2033
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= 7
involuntary context switches= 15

runsolver used 0.001999 second user time and 0.008998 second system time

The end

Launcher Data (download as text)

Begin job on node31 at 2008-07-03 06:47:16
IDJOB=1055852
IDBENCH=56974
IDSOLVER=311
FILE ID=node31/1055852-1215060436
PBS_JOBID= 7875111
Free space on /tmp= 66544 MiB

SOLVER NAME= mddc-solv 2008-06-09
BENCH NAME= CPAI08/csp/travellingSalesman-20/normalized-tsp-20-8_ext.xml
COMMAND LINE= HOME/solver BENCHNAME 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1055852-1215060436/watcher-1055852-1215060436 -o /tmp/evaluation-result-1055852-1215060436/solver-1055852-1215060436 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/solver HOME/instance-1055852-1215060436.xml 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= bf163617dfabfacac1751e8d2d93f3ed
RANDOM SEED=1872463904

node31.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		: 3000.232
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		: 3000.232
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:       1785240 kB
Buffers:         28884 kB
Cached:         139632 kB
SwapCached:       5972 kB
Active:         150128 kB
Inactive:        62480 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1785240 kB
SwapTotal:     4192956 kB
SwapFree:      4180076 kB
Dirty:             492 kB
Writeback:           0 kB
Mapped:          51932 kB
Slab:            42896 kB
Committed_AS:  3051820 kB
PageTables:       2176 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= 66544 MiB
End job on node31 at 2008-07-03 06:47:16