Trace number 370079

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
TTS 4.0UNSAT 0.327949 0.329929

General information on the benchmark

Namecrafted/Medium/contest05/pebbling/
unsat-pbl-00070.sat05-1324.reshuffled-07.cnf
MD5SUMe72b4e386685e8ae3270a3d69e1ae8da
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.251961
Satisfiable
(Un)Satisfiability was proved
Number of variables257
Number of clauses7375
Sum of the clauses size62500
Maximum clause length11
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 211
Number of clauses of size 346
Number of clauses of size 4119
Number of clauses of size 5300
Number of clauses of size over 56898

Solver Data (download as text)

0.29/0.32	c Command: /tmp/evaluation/370079-1177551921/tts-4-0 /tmp/evaluation/370079-1177551921/instance-370079-1177551921.cnf 
0.29/0.32	c CPU limit set to 5000.000000
0.29/0.32	c Variables = 257
0.29/0.32	c Clauses = 7375
0.29/0.32	c Literals = 62500
0.29/0.32	c Reduced size:
0.29/0.32	c Variables = 257
0.29/0.32	c Clauses = 7374
0.29/0.32	c Literals = 62494
0.29/0.32	c Independent sub-problems = 1
0.29/0.32	c Sub-problem with 256 variables
0.29/0.32	c using permutation method 4
0.29/0.32	c Ordering finished 0.190 seconds
0.29/0.32	c mapped 0.190 seconds
0.29/0.32	c permuted 0.190 seconds
0.29/0.32	c init finished 0.210 seconds
0.29/0.32	c tree built 0.270 seconds
0.29/0.32	c Partial assignments = 6300, improvements = 1225
0.29/0.32	s UNSATISFIABLE
0.29/0.32	c Time = 0.31 seconds

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node44/watcher-370079-1177551921 -o ROOT/results/node44/solver-370079-1177551921 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/370079-1177551921/tts-4-0 /tmp/evaluation/370079-1177551921/instance-370079-1177551921.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: 0.75 0.93 0.94 3/77 5715
/proc/meminfo: memFree=1894552/2055920 swapFree=4156164/4192956
[pid=5715] ppid=5713 vsize=796 CPUtime=0
/proc/5715/stat : 5715 (tts-4-0) R 5713 5715 5034 0 -1 4194304 106 0 0 0 0 0 0 0 18 0 1 0 203103821 815104 92 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134627035 0 0 4096 0 0 0 0 17 1 0 0
/proc/5715/statm: 199 92 57 113 0 83 0

[startup+0.0600001 s]
/proc/loadavg: 0.75 0.93 0.94 3/77 5715
/proc/meminfo: memFree=1894552/2055920 swapFree=4156164/4192956
[pid=5715] ppid=5713 vsize=1588 CPUtime=0.05
/proc/5715/stat : 5715 (tts-4-0) R 5713 5715 5034 0 -1 4194304 296 0 0 0 5 0 0 0 18 0 1 0 203103821 1626112 282 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134574917 0 0 4096 0 0 0 0 17 1 0 0
/proc/5715/statm: 397 282 59 113 0 281 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1588

[startup+0.102004 s]
/proc/loadavg: 0.75 0.93 0.94 3/77 5715
/proc/meminfo: memFree=1894552/2055920 swapFree=4156164/4192956
[pid=5715] ppid=5713 vsize=2776 CPUtime=0.09
/proc/5715/stat : 5715 (tts-4-0) R 5713 5715 5034 0 -1 4194304 573 0 0 0 9 0 0 0 18 0 1 0 203103821 2842624 559 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134554171 0 0 4096 0 0 0 0 17 1 0 0
/proc/5715/statm: 694 559 62 113 0 578 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2776

[startup+0.302025 s]
/proc/loadavg: 0.75 0.93 0.94 3/77 5715
/proc/meminfo: memFree=1894552/2055920 swapFree=4156164/4192956
[pid=5715] ppid=5713 vsize=6640 CPUtime=0.29
/proc/5715/stat : 5715 (tts-4-0) R 5713 5715 5034 0 -1 4194304 1562 0 0 0 29 0 0 0 19 0 1 0 203103821 6799360 1546 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134591729 0 0 4096 0 0 0 0 17 1 0 0
/proc/5715/statm: 1660 1546 66 113 0 1544 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6640

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

Child status: 20
Real time (s): 0.329929
CPU time (s): 0.327949
CPU user time (s): 0.317951
CPU system time (s): 0.009998
CPU usage (%): 99.3999
Max. virtual memory (cumulated for all children) (KiB): 6640

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.317951
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1572
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= 8

runsolver used 0.001999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node44 on Thu Apr 26 01:45:21 UTC 2007

IDJOB= 370079
IDBENCH= 24587
IDSOLVER= 178
FILE ID= node44/370079-1177551921

PBS_JOBID= 4696283

Free space on /tmp= 66430 MiB

SOLVER NAME= TTS 4.0
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/pebbling/unsat-pbl-00070.sat05-1324.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/370079-1177551921/tts-4-0 /tmp/evaluation/370079-1177551921/instance-370079-1177551921.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node44/watcher-370079-1177551921 -o ROOT/results/node44/solver-370079-1177551921 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/370079-1177551921/tts-4-0 /tmp/evaluation/370079-1177551921/instance-370079-1177551921.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  e72b4e386685e8ae3270a3d69e1ae8da

RANDOM SEED= 967528440

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node44.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		: 3000.234
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		: 3000.234
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:       1894960 kB
Buffers:         23864 kB
Cached:          52892 kB
SwapCached:      13956 kB
Active:          58300 kB
Inactive:        45120 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1894960 kB
SwapTotal:     4192956 kB
SwapFree:      4156164 kB
Dirty:             960 kB
Writeback:           0 kB
Mapped:          34828 kB
Slab:            43016 kB
Committed_AS:  1488780 kB
PageTables:       1740 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= 66430 MiB

End job on node44 on Thu Apr 26 01:45:22 UTC 2007