Trace number 252831

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 0.79 1.39479

General information on the benchmark

Namecoloring/
queens-5-5-4-ext.xml
MD5SUM08303d0bc839b66a68c1b7bcc600d2e9
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.005998
SatisfiableNO
(Un)Satisfiability was proved
Number of variables25
Number of constraints160
Maximum constraint arity2
Maximum domain size4
Number of constraints which are defined in extension160
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.05	c # Sugar v0-40 (/tmp/evaluation/252831-1170112320/sugar-v0-40.jar)
0.05	
0.05	c # MAIN  BEGIN : /tmp/evaluation/252831-1170112320/unknown.xml [Tue Jan 30 00:12:02 2007]
0.05	c # CONVERT_XML  BEGIN : /tmp/evaluation/252831-1170112320/unknown.xml /tmp/evaluation/252831-1170112320/sugar29388.csp [Tue Jan 30 00:12:02 2007]
0.05	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/252831-1170112320/sugar-v0-40.jar -convert /tmp/evaluation/252831-1170112320/unknown.xml /tmp/evaluation/252831-1170112320/sugar29388.csp
0.18	c BEGIN convert /tmp/evaluation/252831-1170112320/unknown.xml
0.35	c END convert (0.173893 seconds)
0.40	c # CONVERT_XML  END : /tmp/evaluation/252831-1170112320/sugar29388.csp 20366 bytes (0 seconds) [Tue Jan 30 00:12:02 2007]
0.40	c # CONVERT_XML  CPU : 0 = 0 + 0 + 0 + 0
0.40	
0.40	c # GENERATE_SAT  BEGIN : /tmp/evaluation/252831-1170112320/sugar29388.bcnf [Tue Jan 30 00:12:02 2007]
0.40	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/252831-1170112320/sugar-v0-40.jar -bcnf -map /tmp/evaluation/252831-1170112320/sugar29388.map /tmp/evaluation/252831-1170112320/sugar29388.csp /tmp/evaluation/252831-1170112320/sugar29388.bcnf
0.52	c BEGIN parse /tmp/evaluation/252831-1170112320/sugar29388.csp
0.85	c END parse (0.325153 seconds)
0.85	c BEGIN simplify
0.85	c END simplify (0.004072 seconds)
0.85	c BEGIN encode /tmp/evaluation/252831-1170112320/sugar29388.bcnf
0.89	c END encode (0.043276 seconds)
0.95	c # GENERATE_SAT  END : 75 variables 690 clauses 10864 bytes (1 seconds) [Tue Jan 30 00:12:03 2007]
0.95	c # GENERATE_SAT  CPU : 0 = 0 + 0 + 0 + 0
0.95	
0.95	c # SOLVE_SAT  BEGIN : /tmp/evaluation/252831-1170112320/sugar29388.bcnf [Tue Jan 30 00:12:03 2007]
0.95	c # CMD : /tmp/evaluation/252831-1170112320/minisat /tmp/evaluation/252831-1170112320/sugar29388.bcnf /tmp/evaluation/252831-1170112320/sugar29388.out
0.95	c ==================================[MINISAT]===================================
0.95	c | Conflicts |     ORIGINAL     |              LEARNT              | Progress |
0.95	c |           | Clauses Literals |   Limit Clauses Literals  Lit/Cl |          |
0.95	c ==============================================================================
0.95	c |         0 |     690     2020 |     230       0        0     nan |  0.000 % |
0.95	c ==============================================================================
0.95	c restarts              : 1
0.95	c conflicts             : 40             (inf /sec)
0.95	c decisions             : 50             (inf /sec)
0.95	c propagations          : 480            (inf /sec)
0.95	c conflict literals     : 130            (4.41 % deleted)
0.95	c Memory used           : 1.62 MB
0.95	c CPU time              : 0 s
0.95	c 
0.95	c UNSATISFIABLE
0.96	c # SOLVE_SAT  END : UNSATISFIABLE (0 seconds) [Tue Jan 30 00:12:03 2007]
0.96	c # SOLVE_SAT  CPU : 0.01 = 0 + 0.01 + 0 + 0
0.96	
0.96	c # RESULT : UNSATISFIABLE
0.96	
0.96	c # OUTPUT_SOL  BEGIN : UNSAT  [Tue Jan 30 00:12:03 2007]
0.96	s UNSATISFIABLE
0.96	c # OUTPUT_SOL  END :  (0 seconds) [Tue Jan 30 00:12:03 2007]
0.96	c # OUTPUT_SOL  CPU : 0 = 0 + 0 + 0 + 0
0.96	
0.96	c # MAIN  END :  (1 seconds) [Tue Jan 30 00:12:03 2007]
0.96	c # MAIN  CPU : 0.01 = 0 + 0.01 + 0 + 0
0.96

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/node6/watcher-252831-1170112320 -o ROOT/results/node6/solver-252831-1170112320 -C 1800 -M 900 /tmp/evaluation/252831-1170112320/solver /tmp/evaluation/252831-1170112320 /tmp/evaluation/252831-1170112320/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: 2.90 2.61 2.63 5/94 29389
/proc/meminfo: memFree=1576472/2055924 swapFree=4192812/4192956
[pid=29388] ppid=29386 vsize=12128 CPUtime=0
/proc/29388/stat : 29388 (sugar) R 29386 29388 29130 0 -1 4194304 506 0 0 0 0 0 0 0 20 0 1 0 31186879 12419072 225 18446744073709551615 4194304 4206940 548682069216 18446744073709551615 268582682963 0 0 4224 0 0 0 0 17 1 0 0
/proc/29388/statm: 3032 225 170 3 0 132 0

[startup+0.106003 s]
/proc/loadavg: 2.90 2.61 2.63 5/94 29389
/proc/meminfo: memFree=1576472/2055924 swapFree=4192812/4192956
[pid=29388] ppid=29386 vsize=13724 CPUtime=0.03
/proc/29388/stat : 29388 (sugar) S 29386 29388 29130 0 -1 4194304 1112 0 0 0 3 0 0 0 20 0 1 0 31186879 14053376 805 18446744073709551615 4194304 4206940 548682069216 18446744073709551615 268591738978 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/29388/statm: 3431 805 368 3 0 531 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 13724

[startup+0.514084 s]
/proc/loadavg: 2.90 2.61 2.63 5/94 29389
/proc/meminfo: memFree=1576472/2055924 swapFree=4192812/4192956
[pid=29388] ppid=29386 vsize=13724 CPUtime=0.03
/proc/29388/stat : 29388 (sugar) S 29386 29388 29130 0 -1 4194304 1178 0 0 0 3 0 0 0 16 0 1 0 31186879 14053376 808 18446744073709551615 4194304 4206940 548682069216 18446744073709551615 268591738978 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/29388/statm: 3431 808 370 3 0 531 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 13724

[startup+1.33524 s]
/proc/loadavg: 2.90 2.61 2.63 2/96 29406
/proc/meminfo: memFree=1569672/2055924 swapFree=4192812/4192956
[pid=29388] ppid=29386 vsize=13724 CPUtime=0.04
/proc/29388/stat : 29388 (sugar) D 29386 29388 29130 0 -1 4194304 1315 88 0 0 3 1 0 0 15 0 1 0 31186879 14053376 815 18446744073709551615 4194304 4206940 548682069216 18446744073709551615 268583015465 0 0 4224 16386 18446744071563608069 0 0 17 1 0 0
/proc/29388/statm: 3431 815 373 3 0 531 0
[pid=29390] ppid=29388 vsize=0 CPUtime=0.28
/proc/29390/stat : 29390 (java) Z 29388 29388 29130 0 -1 1036 3712 0 1 0 26 2 0 0 17 0 1 0 31186884 0 0 18446744073709551615 0 0 0 0 0 0 4 0 23759 18446744071563351923 0 0 17 1 0 0
/proc/29390/statm: 0 0 0 0 0 0 0
[pid=29398] ppid=29388 vsize=0 CPUtime=0.47
/proc/29398/stat : 29398 (java) Z 29388 29388 29130 0 -1 1036 5604 0 1 0 43 4 0 0 16 0 1 0 31186920 0 0 18446744073709551615 0 0 0 0 0 0 4 0 23759 18446744071563351923 0 0 17 1 0 0
/proc/29398/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 13724

Child status: 0

!!! problem with CPU time !!!
wait4(...,&childrusage) returns 29388 and gives childrusage.ru_utime.tv_sec=0 childrusage.ru_utime.tv_usec=37994 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=13997
CPU time returned by wait4() is 0.051991
while last known CPU time is 0.79

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

Real time (s): 1.39479
CPU time (s): 0.79
CPU user time (s): 0.72
CPU system time (s): 0.07
CPU usage (%): 56.6394
Max. virtual memory (cumulated for all children) (KiB): 13724

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.037994
system time used= 0.013997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1453
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= 56
involuntary context switches= 35

runsolver used 0.005999 s user time and 0.008998 s system time

The end

Launcher Data (download as text)

Begin job on node6 on Mon Jan 29 23:12:02 UTC 2007


IDJOB= 252831
IDBENCH= 12968
IDSOLVER= 86
FILE ID= node6/252831-1170112320

PBS_JOBID= 3690038

Free space on /tmp= 63122 MiB

SOLVER NAME= sugar 0.40
BENCH NAME= HOME/pub/bench/CPAI06/coloring/queens-5-5-4-ext.xml
COMMAND LINE= /tmp/evaluation/252831-1170112320/solver /tmp/evaluation/252831-1170112320 /tmp/evaluation/252831-1170112320/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node6/watcher-252831-1170112320 -o ROOT/results/node6/solver-252831-1170112320 -C 1800 -M 900  /tmp/evaluation/252831-1170112320/solver /tmp/evaluation/252831-1170112320 /tmp/evaluation/252831-1170112320/unknown.xml

META MD5SUM SOLVER= 0a27e717dfe98d83d9802fe0eea45073
MD5SUM BENCH=  08303d0bc839b66a68c1b7bcc600d2e9

RANDOM SEED= 945714012

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		: 3000.277
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		: 3000.277
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:      2055924 kB
MemFree:       1577528 kB
Buffers:          4088 kB
Cached:         317824 kB
SwapCached:          0 kB
Active:         114456 kB
Inactive:       287652 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1577528 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:          178200 kB
Writeback:           0 kB
Mapped:         105664 kB
Slab:            61160 kB
Committed_AS:   807496 kB
PageTables:       2240 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= 63116 MiB



End job on node6 on Mon Jan 29 23:12:03 UTC 2007