Trace number 234779

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 0.40SAT 0.94 1.1381

General information on the benchmark

Nametaillard/os-taillard-5/
os-taillard-5-100-9.xml
MD5SUMe800ce74e73cd3339e6c31755904737b
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.025995
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables25
Number of constraints100
Maximum constraint arity2
Maximum domain size313
Number of constraints which are defined in extension0
Number of constraints which are defined in intension100
Global constraints used (with number of constraints)

Solver Data (download as text)

0.05	c # Sugar v0-40 (/tmp/evaluation/234779-1170107030/sugar-v0-40.jar)
0.05	
0.05	c # MAIN  BEGIN : /tmp/evaluation/234779-1170107030/unknown.xml [Mon Jan 29 22:43:50 2007]
0.05	c # CONVERT_XML  BEGIN : /tmp/evaluation/234779-1170107030/unknown.xml /tmp/evaluation/234779-1170107030/sugar29093.csp [Mon Jan 29 22:43:50 2007]
0.05	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/234779-1170107030/sugar-v0-40.jar -convert /tmp/evaluation/234779-1170107030/unknown.xml /tmp/evaluation/234779-1170107030/sugar29093.csp
0.17	c BEGIN convert /tmp/evaluation/234779-1170107030/unknown.xml
0.35	c END convert (0.185024 seconds)
0.39	c # CONVERT_XML  END : /tmp/evaluation/234779-1170107030/sugar29093.csp 4880 bytes (0 seconds) [Mon Jan 29 22:43:50 2007]
0.39	c # CONVERT_XML  CPU : 0 = 0 + 0 + 0 + 0
0.39	
0.39	c # GENERATE_SAT  BEGIN : /tmp/evaluation/234779-1170107030/sugar29093.bcnf [Mon Jan 29 22:43:50 2007]
0.39	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/234779-1170107030/sugar-v0-40.jar -bcnf -map /tmp/evaluation/234779-1170107030/sugar29093.map /tmp/evaluation/234779-1170107030/sugar29093.csp /tmp/evaluation/234779-1170107030/sugar29093.bcnf
0.51	c BEGIN parse /tmp/evaluation/234779-1170107030/sugar29093.csp
0.65	c END parse (0.141671 seconds)
0.65	c BEGIN simplify
0.66	c END simplify (0.005463 seconds)
0.66	c BEGIN encode /tmp/evaluation/234779-1170107030/sugar29093.bcnf
0.75	c END encode (0.088687 seconds)
0.79	c # GENERATE_SAT  END : 6886 variables 48937 clauses 754372 bytes (1 seconds) [Mon Jan 29 22:43:51 2007]
0.79	c # GENERATE_SAT  CPU : 0 = 0 + 0 + 0 + 0
0.79	
0.79	c # SOLVE_SAT  BEGIN : /tmp/evaluation/234779-1170107030/sugar29093.bcnf [Mon Jan 29 22:43:51 2007]
0.79	c # CMD : /tmp/evaluation/234779-1170107030/minisat /tmp/evaluation/234779-1170107030/sugar29093.bcnf /tmp/evaluation/234779-1170107030/sugar29093.out
0.82	c ==================================[MINISAT]===================================
0.82	c | Conflicts |     ORIGINAL     |              LEARNT              | Progress |
0.82	c |           | Clauses Literals |   Limit Clauses Literals  Lit/Cl |          |
0.82	c ==============================================================================
0.82	c |         0 |   48937   139650 |   16312       0        0     nan |  0.000 % |
0.87	c |       102 |   48937   139650 |   17943     102      962     9.4 |  0.000 % |
0.88	c ==============================================================================
0.88	c restarts              : 2
0.88	c conflicts             : 117            (1272 /sec)
0.88	c decisions             : 216            (2348 /sec)
0.88	c propagations          : 172778         (1878308 /sec)
0.88	c conflict literals     : 1066           (33.75 % deleted)
0.88	c Memory used           : 4.11 MB
0.88	c CPU time              : 0.091986 s
0.88	c 
0.88	c SATISFIABLE
0.89	c # SOLVE_SAT  END : SATISFIABLE (0 seconds) [Mon Jan 29 22:43:51 2007]
0.89	c # SOLVE_SAT  CPU : 0.09 = 0 + 0 + 0.09 + 0
0.89	
0.89	c # RESULT : SATISFIABLE
0.89	
0.89	c # OUTPUT_SOL  BEGIN : SAT  [Mon Jan 29 22:43:51 2007]
1.01	c BEGIN read SAT output /tmp/evaluation/234779-1170107030/sugar29093.out
1.05	c END read SAT output (0.035813 seconds)
1.05	c BEGIN write solution /tmp/evaluation/234779-1170107030/sugar29093.sol
1.07	c END write solution (0.02598 seconds)
1.13	s SATISFIABLE
1.13	v 236 9 50 137 177 26 145 238 5 270 173 281 19 125 85 88 245 139 169 0 4 273 248 169 78
1.13	c # OUTPUT_SOL  END :  (0 seconds) [Mon Jan 29 22:43:51 2007]
1.13	c # OUTPUT_SOL  CPU : 0.2 = 0.01 + 0 + 0.16 + 0.03
1.13	
1.13	c # MAIN  END :  (1 seconds) [Mon Jan 29 22:43:51 2007]
1.13	c # MAIN  CPU : 0.29 = 0.01 + 0 + 0.25 + 0.03
1.13

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/node3/watcher-234779-1170107030 -o ROOT/results/node3/solver-234779-1170107030 -C 1800 -M 900 /tmp/evaluation/234779-1170107030/solver /tmp/evaluation/234779-1170107030 /tmp/evaluation/234779-1170107030/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: 2.00 2.46 2.81 5/88 29094
/proc/meminfo: memFree=1857584/2055920 swapFree=4192812/4192956
[pid=29093] ppid=29091 vsize=12268 CPUtime=0
/proc/29093/stat : 29093 (sugar) R 29091 29093 28892 0 -1 4194304 597 0 0 0 0 0 0 0 20 0 1 0 30657840 12562432 316 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 233641655294 0 0 4224 0 0 0 0 17 1 0 0
/proc/29093/statm: 3067 316 241 3 0 167 0

[startup+0.105769 s]
/proc/loadavg: 2.00 2.46 2.81 5/88 29094
/proc/meminfo: memFree=1857584/2055920 swapFree=4192812/4192956
[pid=29093] ppid=29091 vsize=13724 CPUtime=0.04
/proc/29093/stat : 29093 (sugar) S 29091 29093 28892 0 -1 4194304 1112 0 0 0 3 1 0 0 20 0 1 0 30657840 14053376 805 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 233641652322 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/29093/statm: 3431 805 368 3 0 531 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 13724

[startup+0.513803 s]
/proc/loadavg: 2.00 2.46 2.81 5/88 29094
/proc/meminfo: memFree=1857584/2055920 swapFree=4192812/4192956
[pid=29093] ppid=29091 vsize=13724 CPUtime=0.04
/proc/29093/stat : 29093 (sugar) S 29091 29093 28892 0 -1 4194304 1178 0 0 0 3 1 0 0 16 0 1 0 30657840 14053376 808 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 233641652322 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/29093/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

!!! problem with CPU time !!!
wait4(...,&childrusage) returns 29093 and gives childrusage.ru_utime.tv_sec=0 childrusage.ru_utime.tv_usec=292955 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=48992
CPU time returned by wait4() is 0.341947
while last known CPU time is 0.94

Solver probably didn't/couldn't wait for its children
Using last known CPU time as value...

Real time (s): 1.1381
CPU time (s): 0.94
CPU user time (s): 0.86
CPU system time (s): 0.08
CPU usage (%): 82.5941
Max. virtual memory (cumulated for all children) (KiB): 820860

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.292955
system time used= 0.048992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5492
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= 237
involuntary context switches= 177

runsolver used 0.005999 s user time and 0.007998 s system time

The end

Launcher Data (download as text)

Begin job on node3 on Mon Jan 29 21:43:50 UTC 2007


IDJOB= 234779
IDBENCH= 6711
IDSOLVER= 86
FILE ID= node3/234779-1170107030

PBS_JOBID= 3689908

Free space on /tmp= 66549 MiB

SOLVER NAME= sugar 0.40
BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-5/os-taillard-5-100-9.xml
COMMAND LINE= /tmp/evaluation/234779-1170107030/solver /tmp/evaluation/234779-1170107030 /tmp/evaluation/234779-1170107030/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node3/watcher-234779-1170107030 -o ROOT/results/node3/solver-234779-1170107030 -C 1800 -M 900  /tmp/evaluation/234779-1170107030/solver /tmp/evaluation/234779-1170107030 /tmp/evaluation/234779-1170107030/unknown.xml

META MD5SUM SOLVER= 0a27e717dfe98d83d9802fe0eea45073
MD5SUM BENCH=  e800ce74e73cd3339e6c31755904737b

RANDOM SEED= 669439231

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		: 3000.241
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		: 3000.241
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:       1858064 kB
Buffers:          7564 kB
Cached:          40920 kB
SwapCached:          0 kB
Active:         148328 kB
Inactive:        11936 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1858064 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1152 kB
Writeback:           0 kB
Mapped:         131460 kB
Slab:            22580 kB
Committed_AS:   616420 kB
PageTables:       2124 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= 66549 MiB



End job on node3 on Mon Jan 29 21:43:51 UTC 2007