Trace number 232883

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
sugar 0.40UNSAT 0.312952 0.645913

General information on the benchmark

Nametaillard/
os-taillard-4/os-taillard-4-95-8.xml
MD5SUM1710571c9fbceaa3ebf9e7e0cbee2df2
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 benchmark0.015997
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables16
Number of constraints48
Maximum constraint arity2
Maximum domain size238
Number of constraints which are defined in extension0
Number of constraints which are defined in intension48
Global constraints used (with number of constraints)

Solver Data (download as text)

0.05	c # Sugar v0-40 (/tmp/evaluation/232883-1170106604/sugar-v0-40.jar)
0.05	
0.05	c # MAIN  BEGIN : /tmp/evaluation/232883-1170106604/unknown.xml [Mon Jan 29 22:36:45 2007]
0.05	c # CONVERT_XML  BEGIN : /tmp/evaluation/232883-1170106604/unknown.xml /tmp/evaluation/232883-1170106604/sugar24734.csp [Mon Jan 29 22:36:45 2007]
0.05	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/232883-1170106604/sugar-v0-40.jar -convert /tmp/evaluation/232883-1170106604/unknown.xml /tmp/evaluation/232883-1170106604/sugar24734.csp
0.17	c BEGIN convert /tmp/evaluation/232883-1170106604/unknown.xml
0.31	c END convert (0.136298 seconds)
0.34	c # CONVERT_XML  END : /tmp/evaluation/232883-1170106604/sugar24734.csp 2366 bytes (1 seconds) [Mon Jan 29 22:36:46 2007]
0.34	c # CONVERT_XML  CPU : 0 = 0 + 0 + 0 + 0
0.34	
0.34	c # GENERATE_SAT  BEGIN : /tmp/evaluation/232883-1170106604/sugar24734.bcnf [Mon Jan 29 22:36:46 2007]
0.34	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/232883-1170106604/sugar-v0-40.jar -bcnf -map /tmp/evaluation/232883-1170106604/sugar24734.map /tmp/evaluation/232883-1170106604/sugar24734.csp /tmp/evaluation/232883-1170106604/sugar24734.bcnf
0.45	c BEGIN parse /tmp/evaluation/232883-1170106604/sugar24734.csp
0.54	c END parse (0.082344 seconds)
0.54	c BEGIN simplify
0.54	c END simplify (0.002469 seconds)
0.54	c BEGIN encode /tmp/evaluation/232883-1170106604/sugar24734.bcnf
0.59	c END encode (0.049087 seconds)
0.63	c # GENERATE_SAT  END : 3114 variables 15650 clauses 237456 bytes (0 seconds) [Mon Jan 29 22:36:46 2007]
0.63	c # GENERATE_SAT  CPU : 0.24 = 0 + 0 + 0.21 + 0.03
0.63	
0.63	c # SOLVE_SAT  BEGIN : /tmp/evaluation/232883-1170106604/sugar24734.bcnf [Mon Jan 29 22:36:46 2007]
0.63	c # CMD : /tmp/evaluation/232883-1170106604/minisat /tmp/evaluation/232883-1170106604/sugar24734.bcnf /tmp/evaluation/232883-1170106604/sugar24734.out
0.64	c ==================================[MINISAT]===================================
0.64	c | Conflicts |     ORIGINAL     |              LEARNT              | Progress |
0.64	c |           | Clauses Literals |   Limit Clauses Literals  Lit/Cl |          |
0.64	c ==============================================================================
0.64	c |         0 |   15650    43708 |    5216       0        0     nan |  0.000 % |
0.64	c ==============================================================================
0.64	c restarts              : 1
0.64	c conflicts             : 5              (556 /sec)
0.64	c decisions             : 8              (889 /sec)
0.64	c propagations          : 2770           (307846 /sec)
0.64	c conflict literals     : 9              (0.00 % deleted)
0.64	c Memory used           : 2.42 MB
0.64	c CPU time              : 0.008998 s
0.64	c 
0.64	c UNSATISFIABLE
0.64	c # SOLVE_SAT  END : UNSATISFIABLE (0 seconds) [Mon Jan 29 22:36:46 2007]
0.64	c # SOLVE_SAT  CPU : 0.01 = 0 + 0 + 0.01 + 0
0.64	
0.64	c # RESULT : UNSATISFIABLE
0.64	
0.64	c # OUTPUT_SOL  BEGIN : UNSAT  [Mon Jan 29 22:36:46 2007]
0.64	s UNSATISFIABLE
0.64	c # OUTPUT_SOL  END :  (0 seconds) [Mon Jan 29 22:36:46 2007]
0.64	c # OUTPUT_SOL  CPU : 0 = 0 + 0 + 0 + 0
0.64	
0.64	c # MAIN  END :  (1 seconds) [Mon Jan 29 22:36:46 2007]
0.64	c # MAIN  CPU : 0.25 = 0 + 0 + 0.22 + 0.03
0.64

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/node71/watcher-232883-1170106604 -o ROOT/results/node71/solver-232883-1170106604 -C 1800 -M 900 /tmp/evaluation/232883-1170106604/solver /tmp/evaluation/232883-1170106604 /tmp/evaluation/232883-1170106604/unknown.xml 

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: 2.01 2.12 2.35 3/81 24735
/proc/meminfo: memFree=1270400/2055920 swapFree=4192812/4192956
[pid=24734] ppid=24732 vsize=5352 CPUtime=0
/proc/24734/stat : 24734 (solver) R 24732 24734 23661 0 -1 4194304 188 0 0 0 0 0 0 0 20 0 1 0 30618321 5480448 155 18446744073709551615 4194304 4889804 548682069296 18446744073709551615 4542874 0 0 4096 0 0 0 0 17 1 0 0
/proc/24734/statm: 1338 155 127 169 0 49 0

[startup+0.103788 s]
/proc/loadavg: 2.01 2.12 2.35 3/81 24735
/proc/meminfo: memFree=1270400/2055920 swapFree=4192812/4192956
[pid=24734] ppid=24732 vsize=13724 CPUtime=0.04
/proc/24734/stat : 24734 (sugar) S 24732 24734 23661 0 -1 4194304 1112 0 0 0 3 1 0 0 18 0 1 0 30618321 14053376 805 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 231971270754 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/24734/statm: 3431 805 368 3 0 531 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 13724

[startup+0.511876 s]
/proc/loadavg: 2.01 2.12 2.35 3/81 24735
/proc/meminfo: memFree=1270400/2055920 swapFree=4192812/4192956
[pid=24734] ppid=24732 vsize=13724 CPUtime=0.04
/proc/24734/stat : 24734 (sugar) S 24732 24734 23661 0 -1 4194304 1188 0 0 0 3 1 0 0 16 0 1 0 30618321 14053376 808 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 231971270754 0 0 4224 16386 18446744071563648864 0 0 17 0 0 0
/proc/24734/statm: 3431 808 370 3 0 531 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 13724

Child status: 0
Real time (s): 0.645913
CPU time (s): 0.312952
CPU user time (s): 0.26296
CPU system time (s): 0.049992
CPU usage (%): 48.4511
Max. virtual memory (cumulated for all children) (KiB): 13724

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.26296
system time used= 0.049992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6010
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 309
involuntary context switches= 253

runsolver used 0.002999 s user time and 0.005999 s system time

The end

Launcher Data (download as text)

Begin job on node71 on Mon Jan 29 21:36:45 UTC 2007


IDJOB= 232883
IDBENCH= 6561
IDSOLVER= 86
FILE ID= node71/232883-1170106604

PBS_JOBID= 3689748

Free space on /tmp= 66561 MiB

SOLVER NAME= sugar 0.40
BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-4/os-taillard-4-95-8.xml
COMMAND LINE= /tmp/evaluation/232883-1170106604/solver /tmp/evaluation/232883-1170106604 /tmp/evaluation/232883-1170106604/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node71/watcher-232883-1170106604 -o ROOT/results/node71/solver-232883-1170106604 -C 1800 -M 900  /tmp/evaluation/232883-1170106604/solver /tmp/evaluation/232883-1170106604 /tmp/evaluation/232883-1170106604/unknown.xml

META MD5SUM SOLVER= 0a27e717dfe98d83d9802fe0eea45073
MD5SUM BENCH=  1710571c9fbceaa3ebf9e7e0cbee2df2

RANDOM SEED= 766678503

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		: 3000.266
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		: 3000.266
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:       1270944 kB
Buffers:         51508 kB
Cached:          42400 kB
SwapCached:          0 kB
Active:         674052 kB
Inactive:        56260 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1270944 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:             832 kB
Writeback:           0 kB
Mapped:         653220 kB
Slab:            38768 kB
Committed_AS:   996564 kB
PageTables:       3108 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= 66561 MiB



End job on node71 on Mon Jan 29 21:36:46 UTC 2007