Trace number 241906

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
galac 1UNSAT 0.700892 0.753933

General information on the benchmark

Namedimacs/pret/
pret-60-60_ext.xml
MD5SUMb2b762c34be059b37506a29c09fcdb74
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.025995
SatisfiableNO
(Un)Satisfiability was proved
Number of variables60
Number of constraints40
Maximum constraint arity3
Maximum domain size2
Number of constraints which are defined in extension40
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.03	c --- Preproc Stats ---
0.46	c start processing
0.46	c start relation processing
0.50	c start cnf exporting
0.70	c parsing time : 0.297
0.70	c preprocessing time : 0.536
0.70	
0.70	c Nary constraints - conflicts : 0 supports : 40
0.70	c Binary constraints - conflicts : 0 supports :0
0.70	c max arity constraint : 3
0.70	c Max Tuples generated 0
0.70	c relations : 2
0.70	c relations BDD: 2
0.70	c vars : 381 - clauses :  1040
0.70	
0.74	 
0.74	c --- Minisat Stats ---
0.74	 
0.75	c restarts              : 3
0.75	c conflicts             : 266            (44341 /sec)
0.75	c decisions             : 620            (1.77 % random) (103351 /sec)
0.75	c propagations          : 14627          (2438240 /sec)
0.75	c conflict literals     : 1037           (15.62 % deleted)
0.75	c Memory used           : 1.73 MB
0.75	c CPU time              : 0.005999 s
0.75	
0.75	s UNSATISFIABLE

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/node17/watcher-241906-1168375762 -o ROOT/results/node17/solver-241906-1168375762 -C 1800 -M 900 /tmp/evaluation/241906-1168375762/galac.sh /tmp/evaluation/241906-1168375762/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: 0.41 0.21 0.24 5/88 4345
/proc/meminfo: memFree=1711928/2055920 swapFree=4192812/4192956
[pid=4344] ppid=4342 vsize=18540 CPUtime=0
/proc/4344/stat : 4344 (runsolver) R 4342 4344 4212 0 -1 4194368 16 0 0 0 0 0 0 0 20 0 1 0 185971205 18984960 279 18446744073709551615 4194304 4267372 548682069072 18446744073709551615 245482712359 0 0 4096 24578 0 0 0 17 1 0 0
/proc/4344/statm: 4635 279 244 17 0 2626 0

[startup+0.108451 s]
/proc/loadavg: 0.41 0.21 0.24 5/88 4345
/proc/meminfo: memFree=1711928/2055920 swapFree=4192812/4192956
[pid=4344] ppid=4342 vsize=47572 CPUtime=0.01
/proc/4344/stat : 4344 (galac.sh) S 4342 4344 4212 0 -1 4194304 760 1704 0 0 0 0 0 1 24 0 1 0 185971205 48713728 363 18446744073709551615 4194304 4520092 548682069328 18446744073709551615 245482318682 0 2 4096 73728 18446744071563181037 0 0 17 1 0 0
/proc/4344/statm: 11893 363 245 79 0 218 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 47572

[startup+0.516491 s]
/proc/loadavg: 0.41 0.21 0.24 5/88 4345
/proc/meminfo: memFree=1711928/2055920 swapFree=4192812/4192956
[pid=4344] ppid=4342 vsize=47572 CPUtime=0.01
/proc/4344/stat : 4344 (galac.sh) S 4342 4344 4212 0 -1 4194304 760 1704 0 0 0 0 0 1 24 0 1 0 185971205 48713728 363 18446744073709551615 4194304 4520092 548682069328 18446744073709551615 245482318682 0 2 4096 73728 18446744071563181037 0 0 17 1 0 0
/proc/4344/statm: 11893 363 245 79 0 218 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 47572

Child status: 0
Real time (s): 0.753933
CPU time (s): 0.700892
CPU user time (s): 0.606907
CPU system time (s): 0.093985
CPU usage (%): 92.9648
Max. virtual memory (cumulated for all children) (KiB): 47572

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.606907
system time used= 0.093985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 11908
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= 674
involuntary context switches= 663

runsolver used 0.004999 s user time and 0.005999 s system time

The end

Launcher Data (download as text)

Begin job on node17 on Tue Jan  9 20:49:24 UTC 2007


IDJOB= 241906
IDBENCH= 7353
FILE ID= node17/241906-1168375762

PBS_JOBID= 3522295

Free space on /tmp= 66556 MiB

BENCH NAME= HOME/pub/bench/CPAI06/dimacs/pret/pret-60-60_ext.xml
COMMAND LINE= /tmp/evaluation/241906-1168375762/galac.sh /tmp/evaluation/241906-1168375762/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node17/watcher-241906-1168375762 -o ROOT/results/node17/solver-241906-1168375762 -C 1800 -M 900  /tmp/evaluation/241906-1168375762/galac.sh /tmp/evaluation/241906-1168375762/unknown.xml

META MD5SUM SOLVER= d8bf20eb49fe33822f00bab08f33d7fc
MD5SUM BENCH=  b2b762c34be059b37506a29c09fcdb74

RANDOM SEED= 57534148

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:       1712664 kB
Buffers:         66964 kB
Cached:         153560 kB
SwapCached:          0 kB
Active:         181392 kB
Inactive:       104192 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1712664 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            5620 kB
Writeback:           0 kB
Mapped:          86768 kB
Slab:            42552 kB
Committed_AS:  6491432 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= 66556 MiB



End job on node17 on Tue Jan  9 20:49:25 UTC 2007