Trace number 320854

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
MiraXT v3UNSAT 0.509922 0.510392

General information on the benchmark

Nameindustrial/babic/
xinetd/itox_vc965.cnf
MD5SUM867a6f6420a887007f0529947c09f327
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.236963
Satisfiable
(Un)Satisfiability was proved
Number of variables115769
Number of clauses338946
Sum of the clauses size884379
Maximum clause length3
Minimum clause length1
Number of clauses of size 17057
Number of clauses of size 2118345
Number of clauses of size 3213544
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	c Starting MiraXTv3...
0.49/0.50	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.4 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node4/watcher-320854-1178886282 -o ROOT/results/node4/solver-320854-1178886282 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/320854-1178886282/MiraXTv3_dyn /tmp/evaluation/320854-1178886282/instance-320854-1178886282.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: 1.92 1.84 1.44 3/77 20280
/proc/meminfo: memFree=1758800/2055920 swapFree=4141212/4192956
[pid=20280] ppid=20278 vsize=3788 CPUtime=0
/proc/20280/stat : 20280 (MiraXTv3_dyn) R 20278 20280 19777 0 -1 4194304 400 0 0 0 0 0 0 0 18 0 1 0 364666045 3878912 375 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/20280/statm: 947 384 202 20 0 305 0

[startup+0.078398 s]
/proc/loadavg: 1.92 1.84 1.44 3/77 20280
/proc/meminfo: memFree=1758800/2055920 swapFree=4141212/4192956
[pid=20280] ppid=20278 vsize=19120 CPUtime=0.07
/proc/20280/stat : 20280 (MiraXTv3_dyn) R 20278 20280 19777 0 -1 4194304 3712 0 0 0 6 1 0 0 18 0 1 0 364666045 19578880 3676 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 11023995 0 0 4096 0 0 0 0 17 0 0 0
/proc/20280/statm: 4780 3677 206 20 0 4138 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 19120

[startup+0.101413 s]
/proc/loadavg: 1.92 1.84 1.44 3/77 20280
/proc/meminfo: memFree=1758800/2055920 swapFree=4141212/4192956
[pid=20280] ppid=20278 vsize=20548 CPUtime=0.09
/proc/20280/stat : 20280 (MiraXTv3_dyn) R 20278 20280 19777 0 -1 4194304 4063 0 0 0 8 1 0 0 18 0 1 0 364666045 21041152 4027 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 11023995 0 0 4096 0 0 0 0 17 0 0 0
/proc/20280/statm: 5137 4028 206 20 0 4495 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 20548

[startup+0.30142 s]
/proc/loadavg: 1.92 1.84 1.44 3/77 20280
/proc/meminfo: memFree=1758800/2055920 swapFree=4141212/4192956
[pid=20280] ppid=20278 vsize=32408 CPUtime=0.29
/proc/20280/stat : 20280 (MiraXTv3_dyn) R 20278 20280 19777 0 -1 4194304 6924 0 0 0 26 3 0 0 19 0 1 0 364666045 33185792 6888 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 11023995 0 0 4096 0 0 0 0 17 0 0 0
/proc/20280/statm: 8102 6888 206 20 0 7460 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 32408

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

[startup+0.501438 s]
/proc/loadavg: 1.92 1.84 1.44 3/77 20280
/proc/meminfo: memFree=1758800/2055920 swapFree=4141212/4192956
[pid=20280] ppid=20278 vsize=38260 CPUtime=0.49
/proc/20280/stat : 20280 (MiraXTv3_dyn) R 20278 20280 19777 0 -1 4194304 8276 0 0 0 45 4 0 0 21 0 1 0 364666045 39178240 8240 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 134569673 0 0 4096 0 0 0 0 17 0 0 0
/proc/20280/statm: 9565 8240 207 20 0 8923 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 38260

Child status: 20
Real time (s): 0.510392
CPU time (s): 0.509922
CPU user time (s): 0.45993
CPU system time (s): 0.049992
CPU usage (%): 99.9079
Max. virtual memory (cumulated for all children) (KiB): 38260

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.45993
system time used= 0.049992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8284
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= 14
involuntary context switches= 9

runsolver used 0.002999 second user time and 0.003999 second system time

The end

Launcher Data (download as text)

Begin job on node4 on Fri May 11 12:24:43 UTC 2007

IDJOB= 320854
IDBENCH= 20513
IDSOLVER= 128
FILE ID= node4/320854-1178886282

PBS_JOBID= 5251070

Free space on /tmp= 66554 MiB

SOLVER NAME= MiraXT v3
BENCH NAME= HOME/pub/bench/SAT07/industrial/babic/xinetd/itox_vc965.cnf
COMMAND LINE= /tmp/evaluation/320854-1178886282/MiraXTv3_dyn /tmp/evaluation/320854-1178886282/instance-320854-1178886282.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node4/watcher-320854-1178886282 -o ROOT/results/node4/solver-320854-1178886282 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/320854-1178886282/MiraXTv3_dyn /tmp/evaluation/320854-1178886282/instance-320854-1178886282.cnf            

META MD5SUM SOLVER= 2ad149617ed8d249d89b067eb44c33da
MD5SUM BENCH=  867a6f6420a887007f0529947c09f327

RANDOM SEED= 403853168

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node4.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		: 3000.218
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	: 5931.00
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		: 3000.218
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:       1759016 kB
Buffers:         46808 kB
Cached:         163276 kB
SwapCached:      15676 kB
Active:         118344 kB
Inactive:       115344 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1759016 kB
SwapTotal:     4192956 kB
SwapFree:      4141212 kB
Dirty:           10152 kB
Writeback:           0 kB
Mapped:          30012 kB
Slab:            48736 kB
Committed_AS:  9932428 kB
PageTables:       1816 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= 66554 MiB

End job on node4 on Fri May 11 12:24:44 UTC 2007