Trace number 243234

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 1.06 1.30749

General information on the benchmark

Namedimacs/aim-200/
aim-200-3-4-sat-4_ext.xml
MD5SUMcd5fa02169b73a6d6f563f45f297f679
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 benchmark0.049992
SatisfiableYES
(Un)Satisfiability was proved
Number of variables200
Number of constraints643
Maximum constraint arity3
Maximum domain size2
Number of constraints which are defined in extension643
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.04	c # Sugar v0-40 (/tmp/evaluation/243234-1170109301/sugar-v0-40.jar)
0.04	
0.04	c # MAIN  BEGIN : /tmp/evaluation/243234-1170109301/unknown.xml [Mon Jan 29 23:21:44 2007]
0.04	c # CONVERT_XML  BEGIN : /tmp/evaluation/243234-1170109301/unknown.xml /tmp/evaluation/243234-1170109301/sugar27637.csp [Mon Jan 29 23:21:44 2007]
0.04	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/243234-1170109301/sugar-v0-40.jar -convert /tmp/evaluation/243234-1170109301/unknown.xml /tmp/evaluation/243234-1170109301/sugar27637.csp
0.15	c BEGIN convert /tmp/evaluation/243234-1170109301/unknown.xml
0.43	c END convert (0.282461 seconds)
0.48	c # CONVERT_XML  END : /tmp/evaluation/243234-1170109301/sugar27637.csp 35315 bytes (0 seconds) [Mon Jan 29 23:21:44 2007]
0.48	c # CONVERT_XML  CPU : 0 = 0 + 0 + 0 + 0
0.48	
0.48	c # GENERATE_SAT  BEGIN : /tmp/evaluation/243234-1170109301/sugar27637.bcnf [Mon Jan 29 23:21:44 2007]
0.48	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/243234-1170109301/sugar-v0-40.jar -bcnf -map /tmp/evaluation/243234-1170109301/sugar27637.map /tmp/evaluation/243234-1170109301/sugar27637.csp /tmp/evaluation/243234-1170109301/sugar27637.bcnf
0.59	c BEGIN parse /tmp/evaluation/243234-1170109301/sugar27637.csp
0.96	c END parse (0.373078 seconds)
0.96	c BEGIN simplify
0.97	c END simplify (0.002395 seconds)
0.97	c BEGIN encode /tmp/evaluation/243234-1170109301/sugar27637.bcnf
1.00	c END encode (0.036616 seconds)
1.02	c # GENERATE_SAT  END : 200 variables 677 clauses 10848 bytes (1 seconds) [Mon Jan 29 23:21:45 2007]
1.02	c # GENERATE_SAT  CPU : 0 = 0 + 0 + 0 + 0
1.02	
1.02	c # SOLVE_SAT  BEGIN : /tmp/evaluation/243234-1170109301/sugar27637.bcnf [Mon Jan 29 23:21:45 2007]
1.02	c # CMD : /tmp/evaluation/243234-1170109301/minisat /tmp/evaluation/243234-1170109301/sugar27637.bcnf /tmp/evaluation/243234-1170109301/sugar27637.out
1.03	c ==================================[MINISAT]===================================
1.03	c | Conflicts |     ORIGINAL     |              LEARNT              | Progress |
1.03	c |           | Clauses Literals |   Limit Clauses Literals  Lit/Cl |          |
1.03	c ==============================================================================
1.03	c |         0 |     677     2029 |     225       0        0     nan |  0.000 % |
1.03	c |       100 |     690     2029 |     247      87      787     9.0 |  0.003 % |
1.03	c ==============================================================================
1.03	c restarts              : 2
1.03	c conflicts             : 158            (52684 /sec)
1.03	c decisions             : 326            (108703 /sec)
1.03	c propagations          : 4654           (1551851 /sec)
1.03	c conflict literals     : 1061           (15.05 % deleted)
1.03	c Memory used           : 1.62 MB
1.03	c CPU time              : 0.002999 s
1.03	c 
1.03	c SATISFIABLE
1.03	c # SOLVE_SAT  END : SATISFIABLE (0 seconds) [Mon Jan 29 23:21:45 2007]
1.03	c # SOLVE_SAT  CPU : 0 = 0 + 0 + 0 + 0
1.03	
1.03	c # RESULT : SATISFIABLE
1.03	
1.03	c # OUTPUT_SOL  BEGIN : SAT  [Mon Jan 29 23:21:45 2007]
1.21	c BEGIN read SAT output /tmp/evaluation/243234-1170109301/sugar27637.out
1.22	c END read SAT output (0.00303 seconds)
1.22	c BEGIN write solution /tmp/evaluation/243234-1170109301/sugar27637.sol
1.25	c END write solution (0.030009 seconds)
1.30	s SATISFIABLE
1.30	v 1 1 0 0 0 0 1 0 1 1 0 0 0 0 1 0 1 1 0 1 0 1 0 0 1 1 0 0 0 0 1 1 0 0 0 0 1 0 1 1 0 0 0 1 1 1 0 0 0 0 0 1 0 1 1 1 1 0 1 1 1 0 1 1 0 0 0 1 1 1 0 0 1 1 1 1 1 1 1 1 1 0 1 1 1 1 0 1 0 0 1 1 0 0 1 0 0 0 1 1 1 0 1 1 0 1 0 1 0 1 1 1 1 0 1 1 1 1 0 1 0 1 0 1 1 0 1 0 0 1 1 0 0 1 0 1 0 1 0 0 1 1 0 1 1 0 0 0 0 1 1 0 0 1 1 0 0 0 0 1 0 0 1 1 0 0 1 1 0 1 0 0 0 1 1 1 0 1 1 1 1 1 0 0 0 0 0 0 1 1 0 0 0 1 1 0 1 0 0 1
1.30	c # OUTPUT_SOL  END :  (0 seconds) [Mon Jan 29 23:21:45 2007]
1.30	c # OUTPUT_SOL  CPU : 0 = 0 + 0 + 0 + 0
1.30	
1.30	c # MAIN  END :  (1 seconds) [Mon Jan 29 23:21:45 2007]
1.30	c # MAIN  CPU : 0 = 0 + 0 + 0 + 0
1.30

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/node42/watcher-243234-1170109301 -o ROOT/results/node42/solver-243234-1170109301 -C 1800 -M 900 /tmp/evaluation/243234-1170109301/solver /tmp/evaluation/243234-1170109301 /tmp/evaluation/243234-1170109301/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: 0.08 2.11 3.26 4/68 27638
/proc/meminfo: memFree=1922544/2055920 swapFree=4192812/4192956
[pid=27637] ppid=27635 vsize=12264 CPUtime=0
/proc/27637/stat : 27637 (sugar) R 27635 27637 27072 0 -1 4194304 556 0 0 0 0 0 0 0 18 0 1 0 30886426 12558336 276 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 259434841490 0 0 4224 0 0 0 0 17 1 0 0
/proc/27637/statm: 3067 284 211 3 0 167 0

[startup+0.107176 s]
/proc/loadavg: 0.08 2.11 3.26 4/68 27638
/proc/meminfo: memFree=1922544/2055920 swapFree=4192812/4192956
[pid=27637] ppid=27635 vsize=13724 CPUtime=0.04
/proc/27637/stat : 27637 (sugar) S 27635 27637 27072 0 -1 4194304 1112 0 0 0 3 1 0 0 16 0 1 0 30886426 14053376 805 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 259424039010 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/27637/statm: 3431 805 368 3 0 531 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 13724

[startup+0.516253 s]
/proc/loadavg: 0.08 2.11 3.26 4/68 27638
/proc/meminfo: memFree=1922544/2055920 swapFree=4192812/4192956
[pid=27637] ppid=27635 vsize=13724 CPUtime=0.04
/proc/27637/stat : 27637 (sugar) S 27635 27637 27072 0 -1 4194304 1178 0 0 0 3 1 0 0 17 0 1 0 30886426 14053376 808 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 259424039010 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/27637/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 27637 and gives childrusage.ru_utime.tv_sec=0 childrusage.ru_utime.tv_usec=40993 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=16997
CPU time returned by wait4() is 0.05799
while last known CPU time is 1.06

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

Real time (s): 1.30749
CPU time (s): 1.06
CPU user time (s): 0.98
CPU system time (s): 0.08
CPU usage (%): 81.0716
Max. virtual memory (cumulated for all children) (KiB): 820860

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.040993
system time used= 0.016997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1586
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= 49
involuntary context switches= 15

runsolver used 0.005999 s user time and 0.007998 s system time

The end

Launcher Data (download as text)

Begin job on node42 on Mon Jan 29 22:21:42 UTC 2007


IDJOB= 243234
IDBENCH= 7452
IDSOLVER= 86
FILE ID= node42/243234-1170109301

PBS_JOBID= 3690242

Free space on /tmp= 66563 MiB

SOLVER NAME= sugar 0.40
BENCH NAME= HOME/pub/bench/CPAI06/dimacs/aim-200/aim-200-3-4-sat-4_ext.xml
COMMAND LINE= /tmp/evaluation/243234-1170109301/solver /tmp/evaluation/243234-1170109301 /tmp/evaluation/243234-1170109301/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node42/watcher-243234-1170109301 -o ROOT/results/node42/solver-243234-1170109301 -C 1800 -M 900  /tmp/evaluation/243234-1170109301/solver /tmp/evaluation/243234-1170109301 /tmp/evaluation/243234-1170109301/unknown.xml

META MD5SUM SOLVER= 0a27e717dfe98d83d9802fe0eea45073
MD5SUM BENCH=  cd5fa02169b73a6d6f563f45f297f679

RANDOM SEED= 113948174

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		: 3000.261
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		: 3000.261
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:       1921904 kB
Buffers:         20788 kB
Cached:          40276 kB
SwapCached:          0 kB
Active:          51888 kB
Inactive:        30340 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1921904 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1704 kB
Writeback:           0 kB
Mapped:          31880 kB
Slab:            37300 kB
Committed_AS:   586804 kB
PageTables:       1768 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= 66563 MiB



End job on node42 on Mon Jan 29 22:21:47 UTC 2007