Trace number 332688

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
picosat 535UNSAT 0.605907 0.607659

General information on the benchmark

Namecrafted/Medium/contest05/pebbling/
unsat-pbl-00080.sat05-1325.reshuffled-07.cnf
MD5SUM270191e44d7630b87c6baceebf140e40
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.512921
Satisfiable
(Un)Satisfiability was proved
Number of variables288
Number of clauses11604
Sum of the clauses size89223
Maximum clause length11
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 214
Number of clauses of size 373
Number of clauses of size 472
Number of clauses of size 5457
Number of clauses of size over 510986

Solver Data (download as text)

0.59/0.60	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node13/watcher-332688-1173486226 -o ROOT/results/node13/solver-332688-1173486226 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/332688-1173486226/picosat /tmp/evaluation/332688-1173486226/instance-332688-1173486226.cnf 

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): 2400 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: 0.92 0.97 0.98 3/77 22805
/proc/meminfo: memFree=1566984/2055920 swapFree=4158920/4192956
[pid=22805] ppid=22803 vsize=568 CPUtime=0
/proc/22805/stat : 22805 (picosat) R 22803 22805 21546 0 -1 4194304 72 0 0 0 0 0 0 0 18 0 1 0 368577096 581632 57 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/22805/statm: 142 57 40 102 0 37 0

[startup+0.09469 s]
/proc/loadavg: 0.92 0.97 0.98 3/77 22805
/proc/meminfo: memFree=1566984/2055920 swapFree=4158920/4192956
[pid=22805] ppid=22803 vsize=840 CPUtime=0.08
/proc/22805/stat : 22805 (picosat) R 22803 22805 21546 0 -1 4194304 133 0 0 0 4 4 0 0 18 0 1 0 368577096 860160 118 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/22805/statm: 210 118 40 102 0 105 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 840

[startup+0.10169 s]
/proc/loadavg: 0.92 0.97 0.98 3/77 22805
/proc/meminfo: memFree=1566984/2055920 swapFree=4158920/4192956
[pid=22805] ppid=22803 vsize=840 CPUtime=0.09
/proc/22805/stat : 22805 (picosat) R 22803 22805 21546 0 -1 4194304 137 0 0 0 5 4 0 0 18 0 1 0 368577096 860160 122 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/22805/statm: 210 122 40 102 0 105 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 840

[startup+0.301716 s]
/proc/loadavg: 0.92 0.97 0.98 3/77 22805
/proc/meminfo: memFree=1566984/2055920 swapFree=4158920/4192956
[pid=22805] ppid=22803 vsize=1376 CPUtime=0.29
/proc/22805/stat : 22805 (picosat) R 22803 22805 21546 0 -1 4194304 289 0 0 0 18 11 0 0 19 0 1 0 368577096 1409024 272 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525769 0 0 4096 0 0 0 0 17 1 0 0
/proc/22805/statm: 344 272 48 102 0 239 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1376

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

[startup+0.501743 s]
/proc/loadavg: 0.92 0.97 0.98 3/77 22805
/proc/meminfo: memFree=1566984/2055920 swapFree=4158920/4192956
[pid=22805] ppid=22803 vsize=1376 CPUtime=0.49
/proc/22805/stat : 22805 (picosat) R 22803 22805 21546 0 -1 4194304 304 0 0 0 38 11 0 0 21 0 1 0 368577096 1409024 287 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134543546 0 0 4096 0 0 0 0 17 1 0 0
/proc/22805/statm: 344 287 48 102 0 239 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 1376

[startup+0.601756 s]
/proc/loadavg: 0.92 0.97 0.98 3/77 22805
/proc/meminfo: memFree=1566984/2055920 swapFree=4158920/4192956
[pid=22805] ppid=22803 vsize=1492 CPUtime=0.59
/proc/22805/stat : 22805 (picosat) R 22803 22805 21546 0 -1 4194304 308 0 0 0 48 11 0 0 22 0 1 0 368577096 1527808 291 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134531740 0 0 4096 0 0 0 0 17 1 0 0
/proc/22805/statm: 373 291 48 102 0 268 0
Current children cumulated CPU time (s) 0.59
Current children cumulated vsize (KiB) 1492

Child status: 20
Real time (s): 0.607659
CPU time (s): 0.605907
CPU user time (s): 0.489925
CPU system time (s): 0.115982
CPU usage (%): 99.7117
Max. virtual memory (cumulated for all children) (KiB): 1492

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.489925
system time used= 0.115982
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 310
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= 8
involuntary context switches= 13

runsolver used 0.000999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node13 on Sat Mar 10 00:23:46 UTC 2007

IDJOB= 332688
IDBENCH= 24586
IDSOLVER= 106
FILE ID= node13/332688-1173486226

PBS_JOBID= 4101082

Free space on /tmp= 66371 MiB

SOLVER NAME= picosat 535
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/pebbling/unsat-pbl-00080.sat05-1325.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/332688-1173486226/picosat /tmp/evaluation/332688-1173486226/instance-332688-1173486226.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node13/watcher-332688-1173486226 -o ROOT/results/node13/solver-332688-1173486226 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/332688-1173486226/picosat /tmp/evaluation/332688-1173486226/instance-332688-1173486226.cnf            

META MD5SUM SOLVER= 1cb12d44dc66ecc4d20a168f5cfd1323
MD5SUM BENCH=  270191e44d7630b87c6baceebf140e40

RANDOM SEED= 174018528

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node13.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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:       1567328 kB
Buffers:         47752 kB
Cached:         348708 kB
SwapCached:       2156 kB
Active:         172808 kB
Inactive:       250960 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1567328 kB
SwapTotal:     4192956 kB
SwapFree:      4158920 kB
Dirty:             872 kB
Writeback:           0 kB
Mapped:          35324 kB
Slab:            50312 kB
Committed_AS:  1592560 kB
PageTables:       1760 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= 66371 MiB

End job on node13 on Sat Mar 10 00:23:47 UTC 2007