Trace number 243351

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 1.11 1.30001

General information on the benchmark

Namedimacs/aim-200/
aim-200-3-4-sat-2_ext.xml
MD5SUM94a97ae905bf33f4458c8b3f25bf2515
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 benchmark0.05499
SatisfiableYES
(Un)Satisfiability was proved
Number of variables200
Number of constraints636
Maximum constraint arity3
Maximum domain size2
Number of constraints which are defined in extension636
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/243351-1170109313/sugar-v0-40.jar)
0.04	
0.04	c # MAIN  BEGIN : /tmp/evaluation/243351-1170109313/unknown.xml [Mon Jan 29 23:21:59 2007]
0.04	c # CONVERT_XML  BEGIN : /tmp/evaluation/243351-1170109313/unknown.xml /tmp/evaluation/243351-1170109313/sugar28966.csp [Mon Jan 29 23:21:59 2007]
0.04	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/243351-1170109313/sugar-v0-40.jar -convert /tmp/evaluation/243351-1170109313/unknown.xml /tmp/evaluation/243351-1170109313/sugar28966.csp
0.16	c BEGIN convert /tmp/evaluation/243351-1170109313/unknown.xml
0.47	c END convert (0.300948 seconds)
0.49	c # CONVERT_XML  END : /tmp/evaluation/243351-1170109313/sugar28966.csp 35441 bytes (1 seconds) [Mon Jan 29 23:22:00 2007]
0.49	c # CONVERT_XML  CPU : 0.01 = 0 + 0.01 + 0 + 0
0.49	
0.49	c # GENERATE_SAT  BEGIN : /tmp/evaluation/243351-1170109313/sugar28966.bcnf [Mon Jan 29 23:22:00 2007]
0.49	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/243351-1170109313/sugar-v0-40.jar -bcnf -map /tmp/evaluation/243351-1170109313/sugar28966.map /tmp/evaluation/243351-1170109313/sugar28966.csp /tmp/evaluation/243351-1170109313/sugar28966.bcnf
0.61	c BEGIN parse /tmp/evaluation/243351-1170109313/sugar28966.csp
1.01	c END parse (0.395407 seconds)
1.01	c BEGIN simplify
1.01	c END simplify (0.002698 seconds)
1.01	c BEGIN encode /tmp/evaluation/243351-1170109313/sugar28966.bcnf
1.05	c END encode (0.037482 seconds)
1.10	c # GENERATE_SAT  END : 200 variables 679 clauses 10888 bytes (0 seconds) [Mon Jan 29 23:22:00 2007]
1.10	c # GENERATE_SAT  CPU : 0 = 0 + 0 + 0 + 0
1.10	
1.10	c # SOLVE_SAT  BEGIN : /tmp/evaluation/243351-1170109313/sugar28966.bcnf [Mon Jan 29 23:22:00 2007]
1.10	c # CMD : /tmp/evaluation/243351-1170109313/minisat /tmp/evaluation/243351-1170109313/sugar28966.bcnf /tmp/evaluation/243351-1170109313/sugar28966.out
1.10	c ==================================[MINISAT]===================================
1.10	c | Conflicts |     ORIGINAL     |              LEARNT              | Progress |
1.10	c |           | Clauses Literals |   Limit Clauses Literals  Lit/Cl |          |
1.10	c ==============================================================================
1.10	c |         0 |     679     2037 |     226       0        0     nan |  0.000 % |
1.10	c ==============================================================================
1.10	c restarts              : 1
1.10	c conflicts             : 84             (42021 /sec)
1.10	c decisions             : 234            (117059 /sec)
1.10	c propagations          : 2287           (1144072 /sec)
1.10	c conflict literals     : 405            (13.46 % deleted)
1.10	c Memory used           : 1.62 MB
1.10	c CPU time              : 0.001999 s
1.10	c 
1.10	c SATISFIABLE
1.10	c # SOLVE_SAT  END : SATISFIABLE (0 seconds) [Mon Jan 29 23:22:00 2007]
1.10	c # SOLVE_SAT  CPU : 0 = 0 + 0 + 0 + 0
1.10	
1.10	c # RESULT : SATISFIABLE
1.10	
1.10	c # OUTPUT_SOL  BEGIN : SAT  [Mon Jan 29 23:22:00 2007]
1.22	c BEGIN read SAT output /tmp/evaluation/243351-1170109313/sugar28966.out
1.23	c END read SAT output (0.003345 seconds)
1.23	c BEGIN write solution /tmp/evaluation/243351-1170109313/sugar28966.sol
1.26	c END write solution (0.031974 seconds)
1.29	s SATISFIABLE
1.29	v 0 1 0 0 1 1 0 1 1 0 0 0 1 1 0 1 1 1 0 1 1 0 0 1 0 1 1 0 1 1 0 0 1 0 0 0 1 0 0 0 1 1 1 0 0 0 1 0 0 1 1 0 0 0 0 0 0 1 1 1 1 0 0 1 0 0 0 0 1 1 0 1 0 1 0 1 1 1 0 1 0 0 1 0 0 0 0 0 1 0 0 1 1 0 0 1 1 0 0 0 0 0 0 0 1 1 1 0 1 1 0 1 1 1 0 0 1 0 1 0 0 1 1 0 0 1 1 0 1 0 1 0 0 0 0 1 1 0 1 0 0 0 1 1 0 1 1 1 1 0 0 1 1 1 1 1 0 1 1 0 1 1 0 0 1 0 1 0 0 0 1 0 1 1 0 1 1 1 1 0 0 1 0 1 0 0 0 1 1 0 1 1 0 0 0 1 1 1 0 1
1.29	c # OUTPUT_SOL  END :  (0 seconds) [Mon Jan 29 23:22:00 2007]
1.29	c # OUTPUT_SOL  CPU : 0 = 0 + 0 + 0 + 0
1.29	
1.29	c # MAIN  END :  (1 seconds) [Mon Jan 29 23:22:00 2007]
1.29	c # MAIN  CPU : 0.01 = 0 + 0.01 + 0 + 0
1.29

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/node13/watcher-243351-1170109313 -o ROOT/results/node13/solver-243351-1170109313 -C 1800 -M 900 /tmp/evaluation/243351-1170109313/solver /tmp/evaluation/243351-1170109313 /tmp/evaluation/243351-1170109313/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: 1.90 2.20 2.34 3/87 28967
/proc/meminfo: memFree=1762184/2055920 swapFree=4192812/4192956
[pid=28966] ppid=28964 vsize=12132 CPUtime=0
/proc/28966/stat : 28966 (sugar) R 28964 28966 28250 0 -1 4194304 533 0 0 0 0 0 0 0 18 0 1 0 30886376 12423168 252 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 269757420537 0 0 4224 0 0 0 0 17 1 0 0
/proc/28966/statm: 3033 252 188 3 0 133 0

[startup+0.102159 s]
/proc/loadavg: 1.90 2.20 2.34 3/87 28967
/proc/meminfo: memFree=1762184/2055920 swapFree=4192812/4192956
[pid=28966] ppid=28964 vsize=13724 CPUtime=0.04
/proc/28966/stat : 28966 (sugar) S 28964 28966 28250 0 -1 4194304 1112 0 0 0 3 1 0 0 18 0 1 0 30886376 14053376 805 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 269766144098 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/28966/statm: 3431 805 368 3 0 531 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 13724

[startup+0.510214 s]
/proc/loadavg: 1.90 2.20 2.34 3/87 28967
/proc/meminfo: memFree=1762184/2055920 swapFree=4192812/4192956
[pid=28966] ppid=28964 vsize=13724 CPUtime=0.04
/proc/28966/stat : 28966 (sugar) S 28964 28966 28250 0 -1 4194304 1180 0 0 0 3 1 0 0 16 0 1 0 30886376 14053376 809 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 269766144098 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/28966/statm: 3431 809 371 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 28966 and gives childrusage.ru_utime.tv_sec=0 childrusage.ru_utime.tv_usec=41993 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=15997
CPU time returned by wait4() is 0.05799
while last known CPU time is 1.11

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

Real time (s): 1.30001
CPU time (s): 1.11
CPU user time (s): 1
CPU system time (s): 0.11
CPU usage (%): 85.3841
Max. virtual memory (cumulated for all children) (KiB): 820860

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.041993
system time used= 0.015997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1583
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= 63
involuntary context switches= 48

runsolver used 0.005999 s user time and 0.008998 s system time

The end

Launcher Data (download as text)

Begin job on node13 on Mon Jan 29 22:21:54 UTC 2007


IDJOB= 243351
IDBENCH= 7461
IDSOLVER= 86
FILE ID= node13/243351-1170109313

PBS_JOBID= 3689794

Free space on /tmp= 66533 MiB

SOLVER NAME= sugar 0.40
BENCH NAME= HOME/pub/bench/CPAI06/dimacs/aim-200/aim-200-3-4-sat-2_ext.xml
COMMAND LINE= /tmp/evaluation/243351-1170109313/solver /tmp/evaluation/243351-1170109313 /tmp/evaluation/243351-1170109313/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node13/watcher-243351-1170109313 -o ROOT/results/node13/solver-243351-1170109313 -C 1800 -M 900  /tmp/evaluation/243351-1170109313/solver /tmp/evaluation/243351-1170109313 /tmp/evaluation/243351-1170109313/unknown.xml

META MD5SUM SOLVER= 0a27e717dfe98d83d9802fe0eea45073
MD5SUM BENCH=  94a97ae905bf33f4458c8b3f25bf2515

RANDOM SEED= 352139490

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		: 3000.236
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		: 3000.236
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:       1762536 kB
Buffers:         14260 kB
Cached:          67340 kB
SwapCached:          0 kB
Active:         198968 kB
Inactive:        44612 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1762536 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1056 kB
Writeback:           0 kB
Mapped:         181656 kB
Slab:            34520 kB
Committed_AS:   700180 kB
PageTables:       2344 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= 66533 MiB



End job on node13 on Mon Jan 29 22:22:01 UTC 2007