Trace number 234293

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 2006-12-04UNSAT 4.93025 4.95987

General information on the benchmark

Nametaillard/
js-taillard-15/js-taillard-15-95-3.xml
MD5SUM2ade9c7a7db549cff33078c8a079cfce
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark4.93025
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables225
Number of constraints1785
Maximum constraint arity2
Maximum domain size1122
Number of constraints which are defined in extension0
Number of constraints which are defined in intension1785
Global constraints used (with number of constraints)

Solver Data (download as text)

0.23	c 
0.23	c Parsing xml file
0.23	c 	domains...............    0
0.23	c 	variables.............    0
0.23	c 	predicates............    0
0.23	c 	constraints........... 0.12
0.23	c Allocating memory
0.23	c 
0.23	c time limit = -1
0.23	c heuristic = dom/wdeg
0.23	c restart policy = No restart
0.23	c 
0.23	c Solving
0.23	c
4.91	s UNSATISFIABLE
4.91	d        UNSAT     15903 BTS       4.6 s

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node13/watcher-234293-1168331621 -o ROOT/results/node13/solver-234293-1168331621 -C 1800 -M 900 /tmp/evaluation/234293-1168331621/mistral/bin/solver /tmp/evaluation/234293-1168331621/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: 2.63 2.25 2.08 6/94 14540
/proc/meminfo: memFree=1012944/2055920 swapFree=4191880/4192956
[pid=14539] ppid=14537 vsize=18540 CPUtime=0
/proc/14539/stat : 14539 (runsolver) R 14537 14539 14006 0 -1 4194368 16 0 0 0 0 0 0 0 20 0 1 0 181557145 18984960 279 18446744073709551615 4194304 4267372 548682069040 18446744073709551615 269757246759 0 0 4096 24578 0 0 0 17 1 0 0
/proc/14539/statm: 4635 279 244 17 0 2626 0

[startup+0.109344 s]
/proc/loadavg: 2.63 2.25 2.08 6/94 14540
/proc/meminfo: memFree=1012944/2055920 swapFree=4191880/4192956
[pid=14539] ppid=14537 vsize=8372 CPUtime=0.09
/proc/14539/stat : 14539 (solver) R 14537 14539 14006 0 -1 4194304 1189 0 0 0 9 0 0 0 18 0 1 0 181557145 8572928 1157 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134630997 0 0 4096 0 0 0 0 17 1 0 0
/proc/14539/statm: 2093 1157 705 92 0 437 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8372

[startup+0.517394 s]
/proc/loadavg: 2.63 2.25 2.08 6/94 14540
/proc/meminfo: memFree=1012944/2055920 swapFree=4191880/4192956
[pid=14539] ppid=14537 vsize=46020 CPUtime=0.5
/proc/14539/stat : 14539 (solver) R 14537 14539 14006 0 -1 4194304 10607 0 0 0 44 6 0 0 21 0 1 0 181557145 47124480 10575 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134792842 0 0 4096 0 0 0 0 17 1 0 0
/proc/14539/statm: 11505 10575 718 92 0 9849 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 46020

[startup+1.3385 s]
/proc/loadavg: 2.63 2.25 2.08 3/94 14540
/proc/meminfo: memFree=970256/2055920 swapFree=4191880/4192956
[pid=14539] ppid=14537 vsize=46020 CPUtime=1.32
/proc/14539/stat : 14539 (solver) R 14537 14539 14006 0 -1 4194304 10607 0 0 0 126 6 0 0 25 0 1 0 181557145 47124480 10575 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134785549 0 0 4096 0 0 0 0 17 1 0 0
/proc/14539/statm: 11505 10575 718 92 0 9849 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 46020

[startup+2.97572 s]
/proc/loadavg: 2.63 2.25 2.08 3/94 14540
/proc/meminfo: memFree=964624/2055920 swapFree=4191880/4192956
[pid=14539] ppid=14537 vsize=46020 CPUtime=2.95
/proc/14539/stat : 14539 (solver) R 14537 14539 14006 0 -1 4194304 10607 0 0 0 289 6 0 0 25 0 1 0 181557145 47124480 10575 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134795073 0 0 4096 0 0 0 0 17 1 0 0
/proc/14539/statm: 11505 10575 718 92 0 9849 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 46020

Child status: 0
Real time (s): 4.95987
CPU time (s): 4.93025
CPU user time (s): 4.85626
CPU system time (s): 0.073988
CPU usage (%): 99.4028
Max. virtual memory (cumulated for all children) (KiB): 46020

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.85626
system time used= 0.073988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 10617
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= 13
involuntary context switches= 157

runsolver used 0.005999 s user time and 0.025996 s system time

The end

Launcher Data (download as text)

Begin job on node13 on Tue Jan  9 08:33:42 UTC 2007


IDJOB= 234293
IDBENCH= 6679
FILE ID= node13/234293-1168331621

PBS_JOBID= 3503048

Free space on /tmp= 66550 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/js-taillard-15/js-taillard-15-95-3.xml
COMMAND LINE= /tmp/evaluation/234293-1168331621/mistral/bin/solver /tmp/evaluation/234293-1168331621/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node13/watcher-234293-1168331621 -o ROOT/results/node13/solver-234293-1168331621 -C 1800 -M 900  /tmp/evaluation/234293-1168331621/mistral/bin/solver /tmp/evaluation/234293-1168331621/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  2ade9c7a7db549cff33078c8a079cfce

RANDOM SEED= 853946960

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		: 3000.247
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		: 3000.247
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:       1013424 kB
Buffers:         76592 kB
Cached:         367700 kB
SwapCached:        360 kB
Active:         573524 kB
Inactive:       388244 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1013424 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:            3312 kB
Writeback:           0 kB
Mapped:         543812 kB
Slab:            64304 kB
Committed_AS:  5747980 kB
PageTables:       3408 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= 66550 MiB



End job on node13 on Tue Jan  9 08:33:47 UTC 2007