Trace number 338518

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 1.65175 1.65338

General information on the benchmark

Namecrafted/Difficult/contest05/sabharwal/
counting-easier-fphp-014-012.sat05-1215.reshuffled-07.cnf
MD5SUM60b5c1ecd4f0ba97ecfc5a689d5cdcf0
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.65175
Satisfiable
(Un)Satisfiability was proved
Number of variables168
Number of clauses2030
Sum of the clauses size4200
Maximum clause length12
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22016
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 514

Solver Data (download as text)

1.59/1.65	c Command: /tmp/evaluation/338518-1173687298/tts-4-0 /tmp/evaluation/338518-1173687298/instance-338518-1173687298.cnf 
1.59/1.65	c CPU limit set to 1200.000000
1.59/1.65	c Variables = 168
1.59/1.65	c Clauses = 2030
1.59/1.65	c Literals = 4200
1.59/1.65	c Reduced size:
1.59/1.65	c Variables = 168
1.59/1.65	c Clauses = 2030
1.59/1.65	c Literals = 4200
1.59/1.65	c Independent sub-problems = 1
1.59/1.65	c Sub-problem with 168 variables
1.59/1.65	c using permutation method 4
1.59/1.65	c Ordering finished 0.000 seconds
1.59/1.65	c mapped 0.000 seconds
1.59/1.65	c permuted 0.000 seconds
1.59/1.65	c init finished 0.000 seconds
1.59/1.65	c tree built 0.010 seconds
1.59/1.65	c Partial assignments = 225439, improvements = 22517
1.59/1.65	s UNSATISFIABLE
1.59/1.65	c Time = 1.64 seconds

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/node67/watcher-338518-1173687298 -o ROOT/results/node67/solver-338518-1173687298 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/338518-1173687298/tts-4-0 /tmp/evaluation/338518-1173687298/instance-338518-1173687298.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: 0.91 0.97 0.99 3/64 16983
/proc/meminfo: memFree=1814352/2055920 swapFree=4180928/4192956
[pid=16983] ppid=16981 vsize=928 CPUtime=0
/proc/16983/stat : 16983 (tts-4-0) R 16981 16983 16145 0 -1 4194304 131 0 0 0 0 0 0 0 18 0 1 0 388687406 950272 116 18446744073709551615 134512640 134976056 4294956704 18446744073709551615 134627035 0 0 4096 0 0 0 0 17 1 0 0
/proc/16983/statm: 232 118 59 113 0 116 0

[startup+0.069006 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 16983
/proc/meminfo: memFree=1814352/2055920 swapFree=4180928/4192956
[pid=16983] ppid=16981 vsize=1948 CPUtime=0.06
/proc/16983/stat : 16983 (tts-4-0) R 16981 16983 16145 0 -1 4194304 387 0 0 0 6 0 0 0 18 0 1 0 388687406 1994752 372 18446744073709551615 134512640 134976056 4294956704 18446744073709551615 134536397 0 0 4096 0 0 0 0 17 1 0 0
/proc/16983/statm: 487 372 66 113 0 371 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 1948

[startup+0.101009 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 16983
/proc/meminfo: memFree=1814352/2055920 swapFree=4180928/4192956
[pid=16983] ppid=16981 vsize=1948 CPUtime=0.09
/proc/16983/stat : 16983 (tts-4-0) R 16981 16983 16145 0 -1 4194304 405 0 0 0 9 0 0 0 18 0 1 0 388687406 1994752 390 18446744073709551615 134512640 134976056 4294956704 18446744073709551615 134536877 0 0 4096 0 0 0 0 17 1 0 0
/proc/16983/statm: 487 390 66 113 0 371 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1948

[startup+0.301029 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 16983
/proc/meminfo: memFree=1814352/2055920 swapFree=4180928/4192956
[pid=16983] ppid=16981 vsize=2184 CPUtime=0.29
/proc/16983/stat : 16983 (tts-4-0) R 16981 16983 16145 0 -1 4194304 487 0 0 0 29 0 0 0 19 0 1 0 388687406 2236416 472 18446744073709551615 134512640 134976056 4294956704 18446744073709551615 134543360 0 0 4096 0 0 0 0 17 1 0 0
/proc/16983/statm: 546 472 66 113 0 430 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2184

[startup+0.701071 s]
/proc/loadavg: 0.91 0.97 0.99 3/64 16983
/proc/meminfo: memFree=1814352/2055920 swapFree=4180928/4192956
[pid=16983] ppid=16981 vsize=2888 CPUtime=0.69
/proc/16983/stat : 16983 (tts-4-0) R 16981 16983 16145 0 -1 4194304 633 0 0 0 69 0 0 0 22 0 1 0 388687406 2957312 618 18446744073709551615 134512640 134976056 4294956704 18446744073709551615 134534199 0 0 4096 0 0 0 0 17 1 0 0
/proc/16983/statm: 722 618 66 113 0 606 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2888

[startup+1.50116 s]
/proc/loadavg: 0.91 0.97 0.99 2/65 16984
/proc/meminfo: memFree=1811592/2055920 swapFree=4180928/4192956
[pid=16983] ppid=16981 vsize=4296 CPUtime=1.49
/proc/16983/stat : 16983 (tts-4-0) R 16981 16983 16145 0 -1 4194304 973 0 0 0 149 0 0 0 25 0 1 0 388687406 4399104 958 18446744073709551615 134512640 134976056 4294956704 18446744073709551615 134535187 0 0 4096 0 0 0 0 17 1 0 0
/proc/16983/statm: 1074 958 66 113 0 958 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4296

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

[startup+1.60116 s]
/proc/loadavg: 0.91 0.97 0.99 2/65 16984
/proc/meminfo: memFree=1811592/2055920 swapFree=4180928/4192956
[pid=16983] ppid=16981 vsize=4296 CPUtime=1.59
/proc/16983/stat : 16983 (tts-4-0) R 16981 16983 16145 0 -1 4194304 1018 0 0 0 159 0 0 0 25 0 1 0 388687406 4399104 1003 18446744073709551615 134512640 134976056 4294956704 18446744073709551615 134534049 0 0 4096 0 0 0 0 17 1 0 0
/proc/16983/statm: 1074 1003 66 113 0 958 0
Current children cumulated CPU time (s) 1.59
Current children cumulated vsize (KiB) 4296

Child status: 20
Real time (s): 1.65338
CPU time (s): 1.65175
CPU user time (s): 1.64675
CPU system time (s): 0.004999
CPU usage (%): 99.9014
Max. virtual memory (cumulated for all children) (KiB): 4296

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.64675
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1046
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= 6

runsolver used 0.005999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node67 on Mon Mar 12 08:14:58 UTC 2007

IDJOB= 338518
IDBENCH= 24725
IDSOLVER= 98
FILE ID= node67/338518-1173687298

PBS_JOBID= 4101719

Free space on /tmp= 66539 MiB

SOLVER NAME= TTS 4.0
BENCH NAME= HOME/pub/bench/SAT07/crafted/Difficult/contest05/sabharwal/counting-easier-fphp-014-012.sat05-1215.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/338518-1173687298/tts-4-0 /tmp/evaluation/338518-1173687298/instance-338518-1173687298.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node67/watcher-338518-1173687298 -o ROOT/results/node67/solver-338518-1173687298 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/338518-1173687298/tts-4-0 /tmp/evaluation/338518-1173687298/instance-338518-1173687298.cnf            

META MD5SUM SOLVER= 73a7a27d0c2e86f9b1191433fde766ff
MD5SUM BENCH=  60b5c1ecd4f0ba97ecfc5a689d5cdcf0

RANDOM SEED= 558200658

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node67.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:       1814760 kB
Buffers:         28544 kB
Cached:         157036 kB
SwapCached:       6248 kB
Active:          96768 kB
Inactive:       106112 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1814760 kB
SwapTotal:     4192956 kB
SwapFree:      4180928 kB
Dirty:             608 kB
Writeback:           0 kB
Mapped:          19804 kB
Slab:            24212 kB
Committed_AS:   938728 kB
PageTables:       1464 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= 66539 MiB

End job on node67 on Mon Mar 12 08:15:00 UTC 2007