Trace number 456075

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 1.9407 1.94337

General information on the benchmark

Namecrafted/Medium/contest05/pebbling/
unsat-pbl-00250.sat05-1330.reshuffled-07.cnf
MD5SUM922dc9f32281b0c4efd640c112a641b6
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.71574
Satisfiable
(Un)Satisfiability was proved
Number of variables864
Number of clauses32700
Sum of the clauses size256765
Maximum clause length11
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 228
Number of clauses of size 3180
Number of clauses of size 4348
Number of clauses of size 51746
Number of clauses of size over 530396

Solver Data (download as text)

0.00/0.00	c Starting MiraXTv3...
1.89/1.94	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/node48/watcher-456075-1179020174 -o ROOT/results/node48/solver-456075-1179020174 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/456075-1179020174/MiraXTv3_dyn /tmp/evaluation/456075-1179020174/instance-456075-1179020174.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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: 1.62 1.90 1.88 3/64 14631
/proc/meminfo: memFree=1063800/2055920 swapFree=4183980/4192956
[pid=14631] ppid=14629 vsize=3788 CPUtime=0
/proc/14631/stat : 14631 (MiraXTv3_dyn) R 14629 14631 14331 0 -1 4194304 336 0 0 0 0 0 0 0 18 0 1 0 256862793 3878912 311 18446744073709551615 134512640 134597700 4294956672 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/14631/statm: 947 319 202 20 0 305 0

[startup+0.023334 s]
/proc/loadavg: 1.62 1.90 1.88 3/64 14631
/proc/meminfo: memFree=1063800/2055920 swapFree=4183980/4192956
[pid=14631] ppid=14629 vsize=4580 CPUtime=0.01
/proc/14631/stat : 14631 (MiraXTv3_dyn) R 14629 14631 14331 0 -1 4194304 734 0 0 0 1 0 0 0 18 0 1 0 256862793 4689920 709 18446744073709551615 134512640 134597700 4294956672 18446744073709551615 3966587 0 0 4096 0 0 0 0 17 1 0 0
/proc/14631/statm: 1145 709 206 20 0 503 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 4580

[startup+0.101341 s]
/proc/loadavg: 1.62 1.90 1.88 3/64 14631
/proc/meminfo: memFree=1063800/2055920 swapFree=4183980/4192956
[pid=14631] ppid=14629 vsize=7268 CPUtime=0.09
/proc/14631/stat : 14631 (MiraXTv3_dyn) R 14629 14631 14331 0 -1 4194304 1375 0 0 0 9 0 0 0 18 0 1 0 256862793 7442432 1350 18446744073709551615 134512640 134597700 4294956672 18446744073709551615 134583962 0 0 4096 0 0 0 0 17 1 0 0
/proc/14631/statm: 1817 1350 207 20 0 1175 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7268

[startup+0.301359 s]
/proc/loadavg: 1.62 1.90 1.88 3/64 14631
/proc/meminfo: memFree=1063800/2055920 swapFree=4183980/4192956
[pid=14631] ppid=14629 vsize=7268 CPUtime=0.29
/proc/14631/stat : 14631 (MiraXTv3_dyn) R 14629 14631 14331 0 -1 4194304 1375 0 0 0 29 0 0 0 19 0 1 0 256862793 7442432 1350 18446744073709551615 134512640 134597700 4294956672 18446744073709551615 134583713 0 0 4096 0 0 0 0 17 1 0 0
/proc/14631/statm: 1817 1350 207 20 0 1175 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7268

[startup+0.701396 s]
/proc/loadavg: 1.62 1.90 1.88 3/64 14631
/proc/meminfo: memFree=1063800/2055920 swapFree=4183980/4192956
[pid=14631] ppid=14629 vsize=8268 CPUtime=0.69
/proc/14631/stat : 14631 (MiraXTv3_dyn) R 14629 14631 14331 0 -1 4194304 1629 0 0 0 69 0 0 0 22 0 1 0 256862793 8466432 1604 18446744073709551615 134512640 134597700 4294956672 18446744073709551615 134583954 0 0 4096 0 0 0 0 17 1 0 0
/proc/14631/statm: 2067 1604 207 20 0 1425 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 8268

[startup+1.50147 s]
/proc/loadavg: 1.62 1.90 1.88 2/65 14632
/proc/meminfo: memFree=1057712/2055920 swapFree=4183980/4192956
[pid=14631] ppid=14629 vsize=9588 CPUtime=1.48
/proc/14631/stat : 14631 (MiraXTv3_dyn) R 14629 14631 14331 0 -1 4194304 1936 0 0 0 148 0 0 0 25 0 1 0 256862793 9818112 1911 18446744073709551615 134512640 134597700 4294956672 18446744073709551615 134583912 0 0 4096 0 0 0 0 17 1 0 0
/proc/14631/statm: 2397 1911 207 20 0 1755 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 9588

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

[startup+1.90151 s]
/proc/loadavg: 1.62 1.90 1.88 2/65 14632
/proc/meminfo: memFree=1057712/2055920 swapFree=4183980/4192956
[pid=14631] ppid=14629 vsize=10524 CPUtime=1.89
/proc/14631/stat : 14631 (MiraXTv3_dyn) R 14629 14631 14331 0 -1 4194304 2160 0 0 0 188 1 0 0 25 0 1 0 256862793 10776576 2135 18446744073709551615 134512640 134597700 4294956672 18446744073709551615 134583912 0 0 4096 0 0 0 0 17 1 0 0
/proc/14631/statm: 2631 2135 207 20 0 1989 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 10524

Child status: 20
Real time (s): 1.94337
CPU time (s): 1.9407
CPU user time (s): 1.92771
CPU system time (s): 0.012998
CPU usage (%): 99.863
Max. virtual memory (cumulated for all children) (KiB): 10524

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.92771
system time used= 0.012998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2207
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= 12
involuntary context switches= 3

runsolver used 0.003999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node48 on Sun May 13 01:36:15 UTC 2007

IDJOB= 456075
IDBENCH= 24590
IDSOLVER= 196
FILE ID= node48/456075-1179020174

PBS_JOBID= 5253239

Free space on /tmp= 66545 MiB

SOLVER NAME= MiraXT v3
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/pebbling/unsat-pbl-00250.sat05-1330.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/456075-1179020174/MiraXTv3_dyn /tmp/evaluation/456075-1179020174/instance-456075-1179020174.cnf
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node48/watcher-456075-1179020174 -o ROOT/results/node48/solver-456075-1179020174 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/456075-1179020174/MiraXTv3_dyn /tmp/evaluation/456075-1179020174/instance-456075-1179020174.cnf

META MD5SUM SOLVER= 2ad149617ed8d249d89b067eb44c33da
MD5SUM BENCH=  922dc9f32281b0c4efd640c112a641b6

RANDOM SEED= 816502676

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node48.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		: 3000.238
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		: 3000.238
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:       1064144 kB
Buffers:         55816 kB
Cached:         790100 kB
SwapCached:       3064 kB
Active:         462448 kB
Inactive:       394992 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1064144 kB
SwapTotal:     4192956 kB
SwapFree:      4183980 kB
Dirty:            5424 kB
Writeback:           0 kB
Mapped:          17460 kB
Slab:           120300 kB
Committed_AS:  3766252 kB
PageTables:       1392 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= 66545 MiB

End job on node48 on Sun May 13 01:36:17 UTC 2007