Trace number 1730343

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
HydraSAT 2009-03-22-BaseUNSAT 1.61375 1.61464

General information on the benchmark

Namecrafted/Difficult/contest05/sabharwal/
grid-pebbling-unsat-grid-pbl-0300.sat05-1350.sat05-1350.reshuffled-07.cnf
MD5SUM4c3b2816cb16b0fd4134bf2c85ce45d0
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.61375
Satisfiable
(Un)Satisfiability was proved
Number of variables90300
Number of clauses179702
Sum of the clauses size718202
Maximum clause length4
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 2300
Number of clauses of size 30
Number of clauses of size 4179400
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

1.59/1.61	
1.59/1.61	c decisions : 0
1.59/1.61	c conflicts : 0
1.59/1.61	c Memory limit 1620 MiB
1.59/1.61	c RANDOM SEED: 1029232321
1.59/1.61	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1730343-1240758397/watcher-1730343-1240758397 -o /tmp/evaluation-result-1730343-1240758397/solver-1730343-1240758397 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/hydrasat HOME/instance-1730343-1240758397.cnf -rs 1029232321 -co memory_limit 1800 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.99 0.97 0.99 3/65 9421
/proc/meminfo: memFree=1847272/2055920 swapFree=4192952/4192956
[pid=9421] ppid=9419 vsize=2340 CPUtime=0
/proc/9421/stat : 9421 (hydrasat) R 9419 9421 9207 0 -1 4194304 212 0 0 0 0 0 0 0 20 0 1 0 103868946 2396160 196 1992294400 134512640 135997824 4294956160 18446744073709551615 135371350 0 0 4096 1 0 0 0 17 1 0 0
/proc/9421/statm: 585 197 151 362 0 220 0

[startup+0.0940809 s]
/proc/loadavg: 0.99 0.97 0.99 3/65 9421
/proc/meminfo: memFree=1847272/2055920 swapFree=4192952/4192956
[pid=9421] ppid=9419 vsize=4584 CPUtime=0.08
/proc/9421/stat : 9421 (hydrasat) R 9419 9421 9207 0 -1 4194304 828 0 0 0 8 0 0 0 20 0 1 0 103868946 4694016 812 1992294400 134512640 135997824 4294956160 18446744073709551615 135371350 0 0 4096 1 0 0 0 17 1 0 0
/proc/9421/statm: 1146 812 151 362 0 781 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 4584

[startup+0.10108 s]
/proc/loadavg: 0.99 0.97 0.99 3/65 9421
/proc/meminfo: memFree=1847272/2055920 swapFree=4192952/4192956
[pid=9421] ppid=9419 vsize=4848 CPUtime=0.09
/proc/9421/stat : 9421 (hydrasat) R 9419 9421 9207 0 -1 4194304 875 0 0 0 9 0 0 0 20 0 1 0 103868946 4964352 859 1992294400 134512640 135997824 4294956160 18446744073709551615 135371350 0 0 4096 1 0 0 0 17 1 0 0
/proc/9421/statm: 1212 859 151 362 0 847 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4848

[startup+0.301103 s]
/proc/loadavg: 0.99 0.97 0.99 3/65 9421
/proc/meminfo: memFree=1847272/2055920 swapFree=4192952/4192956
[pid=9421] ppid=9419 vsize=12340 CPUtime=0.29
/proc/9421/stat : 9421 (hydrasat) R 9419 9421 9207 0 -1 4194304 2872 0 0 0 27 2 0 0 22 0 1 0 103868946 12636160 2856 1992294400 134512640 135997824 4294956160 18446744073709551615 135371350 0 0 4096 1 0 0 0 17 1 0 0
/proc/9421/statm: 3085 2856 155 362 0 2720 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12340

[startup+0.70115 s]
/proc/loadavg: 0.99 0.97 0.99 3/65 9421
/proc/meminfo: memFree=1847272/2055920 swapFree=4192952/4192956
[pid=9421] ppid=9419 vsize=18108 CPUtime=0.69
/proc/9421/stat : 9421 (hydrasat) R 9419 9421 9207 0 -1 4194304 4394 0 0 0 66 3 0 0 25 0 1 0 103868946 18542592 4289 1992294400 134512640 135997824 4294956160 18446744073709551615 134695259 0 0 4096 1 0 0 0 17 1 0 0
/proc/9421/statm: 4527 4289 158 362 0 4162 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 18108

[startup+1.50124 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 9422
/proc/meminfo: memFree=1829664/2055920 swapFree=4192952/4192956
[pid=9421] ppid=9419 vsize=26244 CPUtime=1.49
/proc/9421/stat : 9421 (hydrasat) R 9419 9421 9207 0 -1 4194304 6583 0 0 0 145 4 0 0 25 0 1 0 103868946 26873856 6173 1992294400 134512640 135997824 4294956160 18446744073709551615 135371350 0 0 4096 1 0 0 0 17 1 0 0
/proc/9421/statm: 6561 6174 159 362 0 6196 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 26244

Solver just ended. Dumping a history of the last processes samples

[startup+1.60125 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 9422
/proc/meminfo: memFree=1829664/2055920 swapFree=4192952/4192956
[pid=9421] ppid=9419 vsize=27300 CPUtime=1.59
/proc/9421/stat : 9421 (hydrasat) R 9419 9421 9207 0 -1 4194304 6888 0 0 0 155 4 0 0 25 0 1 0 103868946 27955200 6478 1992294400 134512640 135997824 4294956160 18446744073709551615 135371350 0 0 4096 1 0 0 0 17 1 0 0
/proc/9421/statm: 6825 6478 159 362 0 6460 0
Current children cumulated CPU time (s) 1.59
Current children cumulated vsize (KiB) 27300

Child status: 20
Real time (s): 1.61464
CPU time (s): 1.61375
CPU user time (s): 1.56276
CPU system time (s): 0.050992
CPU usage (%): 99.9449
Max. virtual memory (cumulated for all children) (KiB): 27300

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.56276
system time used= 0.050992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6928
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= 2
involuntary context switches= 5

runsolver used 0.002999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node88 at 2009-04-26 17:06:38
IDJOB=1730343
IDBENCH=24728
IDSOLVER=520
FILE ID=node88/1730343-1240758397
PBS_JOBID= 9187130
Free space on /tmp= 66544 MiB

SOLVER NAME= HydraSAT 2009-03-22-Base
BENCH NAME= SAT07/crafted/Difficult/contest05/sabharwal/grid-pebbling-unsat-grid-pbl-0300.sat05-1350.sat05-1350.reshuffled-07.cnf
COMMAND LINE= DIR/hydrasat BENCHNAME -rs RANDOMSEED -co memory_limit MEMLIMIT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1730343-1240758397/watcher-1730343-1240758397 -o /tmp/evaluation-result-1730343-1240758397/solver-1730343-1240758397 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/hydrasat HOME/instance-1730343-1240758397.cnf -rs 1029232321 -co memory_limit 1800

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 4c3b2816cb16b0fd4134bf2c85ce45d0
RANDOM SEED=1029232321

node88.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.229
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		: 3000.229
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1847752 kB
Buffers:         16240 kB
Cached:         109080 kB
SwapCached:          4 kB
Active:          40312 kB
Inactive:        99340 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1847752 kB
SwapTotal:     4192956 kB
SwapFree:      4192952 kB
Dirty:            6524 kB
Writeback:           0 kB
Mapped:          24048 kB
Slab:            54420 kB
Committed_AS:   276712 kB
PageTables:       1444 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= 66544 MiB
End job on node88 at 2009-04-26 17:06:40