Trace number 206976

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, and are wall clock time (not CPU 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 2006-12-04SAT 23.4834 23.7235

General information on the benchmark

NametravellingSalesman/
travellingSalesman-20/tsp-20-2_ext.xml
MD5SUMb9a7be1fad569e5c2e874ee391512cae
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 benchmark3.56646
SatisfiableYES
(Un)Satisfiability was provedYES
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)

0.22	c 
0.22	c Parsing xml file
0.22	c 	domains...............    0
0.22	c 	variables.............    0
0.22	c 	relations............. 0.04
0.22	c 	constraints........... 0.22
0.30	c Allocating memory
0.30	c 
0.30	c time limit = -1
0.30	c heuristic = dom/wdeg
0.30	c restart policy = No restart
0.30	c 
0.30	c Solving
0.30	c
23.70	s SATISFIABLE
23.70	v 9 14 8 15 11 9 10 19 14 0 13 10 6 22 4 13 18 2 16 4 2 2 1 0 15 14 7 1 12 8 20 14 5 5 19 13 3 9 17 6 29 38 57 57 67 89 102 104 108 110 110 124 125 133 147 152 165 174 180 180 0
23.70	d          SAT       787 BTS        23 s

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node20/watcher-206976-1168179683 -o ROOT/results/node20/solver-206976-1168179683 -C 1800 -M 900 /tmp/evaluation/206976-1168179683/mistral/bin/solver /tmp/evaluation/206976-1168179683/unknown.xml -v 1 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 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

/proc/loadavg: 1.95 1.54 1.37 3/94 22987
/proc/meminfo: memFree=1361096/2055920 swapFree=4170192/4192956
[pid=22986] ppid=22984 vsize=18540 CPUtime=0
/proc/22986/stat : 22986 (runsolver) R 22984 22986 22544 0 -1 4194368 16 0 0 0 0 0 0 0 21 0 1 0 166362915 18984960 279 18446744073709551615 4194304 4267372 548682069056 18446744073709551615 273952599335 0 0 4096 24578 0 0 0 17 1 0 0
/proc/22986/statm: 4635 279 244 17 0 2626 0

[startup+0.102258 s]
/proc/loadavg: 1.95 1.54 1.37 3/94 22987
/proc/meminfo: memFree=1361096/2055920 swapFree=4170192/4192956
[pid=22986] ppid=22984 vsize=30124 CPUtime=0.07
/proc/22986/stat : 22986 (solver) R 22984 22986 22544 0 -1 4194304 5054 0 0 0 5 2 0 0 18 0 1 0 166362915 30846976 4962 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134789269 0 0 4096 0 0 0 0 17 1 0 0
/proc/22986/statm: 7531 4962 700 92 0 5875 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 30124

[startup+0.510295 s]
/proc/loadavg: 1.95 1.54 1.37 3/94 22987
/proc/meminfo: memFree=1361096/2055920 swapFree=4170192/4192956
[pid=22986] ppid=22984 vsize=103156 CPUtime=0.48
/proc/22986/stat : 22986 (solver) R 22984 22986 22544 0 -1 4194304 24894 0 0 0 38 10 0 0 21 0 1 0 166362915 105631744 24802 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134637218 0 0 4096 0 0 0 0 17 1 0 0
/proc/22986/statm: 25789 24802 711 92 0 24133 0
Current children cumulated CPU time (s) 0.48
Current children cumulated vsize (KiB) 103156

[startup+1.33139 s]
/proc/loadavg: 1.95 1.54 1.37 3/94 22987
/proc/meminfo: memFree=1263496/2055920 swapFree=4170192/4192956
[pid=22986] ppid=22984 vsize=103156 CPUtime=1.29
/proc/22986/stat : 22986 (solver) R 22984 22986 22544 0 -1 4194304 24894 0 0 0 119 10 0 0 25 0 1 0 166362915 105631744 24802 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134639639 0 0 4096 0 0 0 0 17 1 0 0
/proc/22986/statm: 25789 24802 711 92 0 24133 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 103156

[startup+2.96859 s]
/proc/loadavg: 1.95 1.54 1.37 3/94 22987
/proc/meminfo: memFree=1261192/2055920 swapFree=4170192/4192956
[pid=22986] ppid=22984 vsize=103156 CPUtime=2.92
/proc/22986/stat : 22986 (solver) R 22984 22986 22544 0 -1 4194304 24894 0 0 0 282 10 0 0 25 0 1 0 166362915 105631744 24802 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134639557 0 0 4096 0 0 0 0 17 1 0 0
/proc/22986/statm: 25789 24802 711 92 0 24133 0
Current children cumulated CPU time (s) 2.92
Current children cumulated vsize (KiB) 103156

[startup+6.24798 s]
/proc/loadavg: 1.95 1.55 1.37 3/94 22987
/proc/meminfo: memFree=1258248/2055920 swapFree=4170192/4192956
[pid=22986] ppid=22984 vsize=103156 CPUtime=6.16
/proc/22986/stat : 22986 (solver) R 22984 22986 22544 0 -1 4194304 24894 0 0 0 606 10 0 0 25 0 1 0 166362915 105631744 24802 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134790393 0 0 4096 0 0 0 0 17 1 0 0
/proc/22986/statm: 25789 24802 711 92 0 24133 0
Current children cumulated CPU time (s) 6.16
Current children cumulated vsize (KiB) 103156

[startup+12.7118 s]
/proc/loadavg: 1.96 1.56 1.37 3/94 22987
/proc/meminfo: memFree=1252488/2055920 swapFree=4170192/4192956
[pid=22986] ppid=22984 vsize=103156 CPUtime=12.57
/proc/22986/stat : 22986 (solver) R 22984 22986 22544 0 -1 4194304 24894 0 0 0 1247 10 0 0 25 0 1 0 166362915 105631744 24802 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134639611 0 0 4096 0 0 0 0 17 1 0 0
/proc/22986/statm: 25789 24802 711 92 0 24133 0
Current children cumulated CPU time (s) 12.57
Current children cumulated vsize (KiB) 103156

Child status: 0
Real time (s): 23.7235
CPU time (s): 23.4834
CPU user time (s): 23.3594
CPU system time (s): 0.123981
CPU usage (%): 98.9881
Max. virtual memory (cumulated for all children) (KiB): 103156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 23.3594
system time used= 0.123981
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 24904
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= 914

runsolver used 0.029995 s user time and 0.079987 s system time

The end

Launcher Data (download as text)

Begin job on node20 on Sun Jan  7 14:21:24 UTC 2007


IDJOB= 206976
IDBENCH= 4249
FILE ID= node20/206976-1168179683

PBS_JOBID= 3479126

Free space on /tmp= 66548 MiB

BENCH NAME= HOME/pub/bench/CPAI06/travellingSalesman/travellingSalesman-20/tsp-20-2_ext.xml
COMMAND LINE= /tmp/evaluation/206976-1168179683/mistral/bin/solver /tmp/evaluation/206976-1168179683/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node20/watcher-206976-1168179683 -o ROOT/results/node20/solver-206976-1168179683 -C 1800 -M 900  /tmp/evaluation/206976-1168179683/mistral/bin/solver /tmp/evaluation/206976-1168179683/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  b9a7be1fad569e5c2e874ee391512cae

RANDOM SEED= 357454346

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.216
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		: 3000.216
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:       1361640 kB
Buffers:         50352 kB
Cached:         465284 kB
SwapCached:       3612 kB
Active:         160152 kB
Inactive:       469852 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1361640 kB
SwapTotal:     4192956 kB
SwapFree:      4170192 kB
Dirty:           10932 kB
Writeback:           0 kB
Mapped:         137660 kB
Slab:            48680 kB
Committed_AS:  4074516 kB
PageTables:       2644 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= 66528 MiB



End job on node20 on Sun Jan  7 14:21:47 UTC 2007