Trace number 321078

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 2.80557 2.80707

General information on the benchmark

Nameindustrial/babic/
xinetd/itox_vc979.cnf
MD5SUM0ebda2525041210e494c68044b8ad9a6
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.262959
Satisfiable
(Un)Satisfiability was proved
Number of variables115679
Number of clauses338708
Sum of the clauses size883655
Maximum clause length3
Minimum clause length1
Number of clauses of size 17057
Number of clauses of size 2118355
Number of clauses of size 3213296
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

2.79/2.80	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/node41/watcher-321078-1176326490 -o ROOT/results/node41/solver-321078-1176326490 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/321078-1176326490/picosat /tmp/evaluation/321078-1176326490/instance-321078-1176326490.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: 0.93 1.00 0.99 3/64 30560
/proc/meminfo: memFree=1412032/2055920 swapFree=4191892/4192956
[pid=30560] ppid=30558 vsize=1084 CPUtime=0
/proc/30560/stat : 30560 (picosat) R 30558 30560 29175 0 -1 4194304 203 0 0 0 0 0 0 0 18 0 1 0 80560960 1110016 188 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/30560/statm: 271 189 40 102 0 166 0

[startup+0.0222469 s]
/proc/loadavg: 0.93 1.00 0.99 3/64 30560
/proc/meminfo: memFree=1412032/2055920 swapFree=4191892/4192956
[pid=30560] ppid=30558 vsize=4604 CPUtime=0.01
/proc/30560/stat : 30560 (picosat) R 30558 30560 29175 0 -1 4194304 925 0 0 0 1 0 0 0 18 0 1 0 80560960 4714496 840 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134526214 0 0 4096 0 0 0 0 17 1 0 0
/proc/30560/statm: 1151 841 40 102 0 1046 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 4604

[startup+0.102252 s]
/proc/loadavg: 0.93 1.00 0.99 3/64 30560
/proc/meminfo: memFree=1412032/2055920 swapFree=4191892/4192956
[pid=30560] ppid=30558 vsize=8888 CPUtime=0.1
/proc/30560/stat : 30560 (picosat) R 30558 30560 29175 0 -1 4194304 1979 0 0 0 6 4 0 0 18 0 1 0 80560960 9101312 1894 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/30560/statm: 2222 1894 40 102 0 2117 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 8888

[startup+0.301269 s]
/proc/loadavg: 0.93 1.00 0.99 3/64 30560
/proc/meminfo: memFree=1412032/2055920 swapFree=4191892/4192956
[pid=30560] ppid=30558 vsize=9548 CPUtime=0.29
/proc/30560/stat : 30560 (picosat) R 30558 30560 29175 0 -1 4194304 2160 0 0 0 13 16 0 0 19 0 1 0 80560960 9777152 2075 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/30560/statm: 2387 2075 40 102 0 2282 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9548

[startup+0.701303 s]
/proc/loadavg: 0.93 1.00 0.99 3/64 30560
/proc/meminfo: memFree=1412032/2055920 swapFree=4191892/4192956
[pid=30560] ppid=30558 vsize=11128 CPUtime=0.69
/proc/30560/stat : 30560 (picosat) R 30558 30560 29175 0 -1 4194304 2536 0 0 0 31 38 0 0 22 0 1 0 80560960 11395072 2451 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/30560/statm: 2782 2451 40 102 0 2677 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 11128

[startup+1.50137 s]
/proc/loadavg: 0.93 1.00 0.99 2/65 30561
/proc/meminfo: memFree=1401208/2055920 swapFree=4191892/4192956
[pid=30560] ppid=30558 vsize=14024 CPUtime=1.49
/proc/30560/stat : 30560 (picosat) R 30558 30560 29175 0 -1 4194304 3266 0 0 0 68 81 0 0 25 0 1 0 80560960 14360576 3181 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/30560/statm: 3506 3181 40 102 0 3401 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14024

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

[startup+2.30144 s]
/proc/loadavg: 0.93 1.00 0.99 2/65 30561
/proc/meminfo: memFree=1396792/2055920 swapFree=4191892/4192956
[pid=30560] ppid=30558 vsize=17308 CPUtime=2.29
/proc/30560/stat : 30560 (picosat) R 30558 30560 29175 0 -1 4194304 4015 0 0 0 104 125 0 0 25 0 1 0 80560960 17723392 3930 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/30560/statm: 4327 3930 40 102 0 4222 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 17308

[startup+2.70148 s]
/proc/loadavg: 0.93 1.00 0.99 2/65 30561
/proc/meminfo: memFree=1396792/2055920 swapFree=4191892/4192956
[pid=30560] ppid=30558 vsize=18496 CPUtime=2.69
/proc/30560/stat : 30560 (picosat) R 30558 30560 29175 0 -1 4194304 4359 0 0 0 122 147 0 0 25 0 1 0 80560960 18939904 4274 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/30560/statm: 4624 4274 40 102 0 4519 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 18496

[startup+2.80149 s]
/proc/loadavg: 0.93 1.00 0.99 2/65 30561
/proc/meminfo: memFree=1396792/2055920 swapFree=4191892/4192956
[pid=30560] ppid=30558 vsize=10712 CPUtime=2.79
/proc/30560/stat : 30560 (picosat) R 30558 30560 29175 0 -1 4194304 4485 0 0 0 130 149 0 0 25 0 1 0 80560960 10969088 2533 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134579065 0 0 4096 0 0 0 0 17 1 0 0
/proc/30560/statm: 2678 2533 42 102 0 2573 0
Current children cumulated CPU time (s) 2.79
Current children cumulated vsize (KiB) 10712

Child status: 20
Real time (s): 2.80707
CPU time (s): 2.80557
CPU user time (s): 1.3038
CPU system time (s): 1.50177
CPU usage (%): 99.9466
Max. virtual memory (cumulated for all children) (KiB): 18496

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.3038
system time used= 1.50177
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4487
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= 1

runsolver used 0.003999 second user time and 0.013997 second system time

The end

Launcher Data (download as text)

Begin job on node41 on Wed Apr 11 21:21:31 UTC 2007

IDJOB= 321078
IDBENCH= 20519
IDSOLVER= 106
FILE ID= node41/321078-1176326490

PBS_JOBID= 4516705

Free space on /tmp= 66558 MiB

SOLVER NAME= picosat 535
BENCH NAME= HOME/pub/bench/SAT07/industrial/babic/xinetd/itox_vc979.cnf
COMMAND LINE= /tmp/evaluation/321078-1176326490/picosat /tmp/evaluation/321078-1176326490/instance-321078-1176326490.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node41/watcher-321078-1176326490 -o ROOT/results/node41/solver-321078-1176326490 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/321078-1176326490/picosat /tmp/evaluation/321078-1176326490/instance-321078-1176326490.cnf            

META MD5SUM SOLVER= 1cb12d44dc66ecc4d20a168f5cfd1323
MD5SUM BENCH=  0ebda2525041210e494c68044b8ad9a6

RANDOM SEED= 594849319

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node41.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		: 3000.232
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		: 3000.232
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:       1412440 kB
Buffers:         43068 kB
Cached:         429468 kB
SwapCached:        268 kB
Active:         173292 kB
Inactive:       314044 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1412440 kB
SwapTotal:     4192956 kB
SwapFree:      4191892 kB
Dirty:            6708 kB
Writeback:           0 kB
Mapped:          23800 kB
Slab:           142132 kB
Committed_AS:   131000 kB
PageTables:       1476 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= 66558 MiB

End job on node41 on Wed Apr 11 21:21:34 UTC 2007