Trace number 332680

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 0.576912 0.58193

General information on the benchmark

Namecrafted/Medium/contest05/pebbling/
unsat-pbl-00080.sat05-1325.reshuffled-07.cnf
MD5SUM270191e44d7630b87c6baceebf140e40
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.512921
Satisfiable
(Un)Satisfiability was proved
Number of variables288
Number of clauses11604
Sum of the clauses size89223
Maximum clause length11
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 214
Number of clauses of size 373
Number of clauses of size 472
Number of clauses of size 5457
Number of clauses of size over 510986

Solver Data (download as text)

0.49/0.57	c Command: /tmp/evaluation/332680-1173486066/tts-4-0 /tmp/evaluation/332680-1173486066/instance-332680-1173486066.cnf 
0.49/0.57	c CPU limit set to 1200.000000
0.49/0.57	c Variables = 288
0.49/0.57	c Clauses = 11604
0.49/0.57	c Literals = 89223
0.49/0.57	c Reduced size:
0.49/0.57	c Variables = 288
0.49/0.57	c Clauses = 11602
0.49/0.57	c Literals = 89171
0.49/0.57	c Independent sub-problems = 1
0.49/0.57	c Sub-problem with 286 variables
0.49/0.57	c using permutation method 4
0.49/0.57	c Ordering finished 0.280 seconds
0.49/0.57	c mapped 0.280 seconds
0.49/0.57	c permuted 0.280 seconds
0.49/0.57	c init finished 0.300 seconds
0.49/0.57	c tree built 0.400 seconds
0.49/0.57	c Partial assignments = 15083, improvements = 3679
0.49/0.57	s UNSATISFIABLE
0.49/0.57	c Time = 0.57 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/node17/watcher-332680-1173486066 -o ROOT/results/node17/solver-332680-1173486066 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/332680-1173486066/tts-4-0 /tmp/evaluation/332680-1173486066/instance-332680-1173486066.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 1.02 4/77 18419
/proc/meminfo: memFree=1387272/2055920 swapFree=4168576/4192956
[pid=18419] ppid=18417 vsize=796 CPUtime=0
/proc/18419/stat : 18419 (tts-4-0) R 18417 18419 16665 0 -1 4194304 93 0 0 0 0 0 0 0 18 0 1 0 368560864 815104 78 18446744073709551615 134512640 134976056 4294956704 18446744073709551615 134627035 0 0 4096 0 0 0 0 17 0 0 0
/proc/18419/statm: 199 79 57 113 0 83 0

[startup+0.0472389 s]
/proc/loadavg: 0.91 0.97 1.02 4/77 18419
/proc/meminfo: memFree=1387272/2055920 swapFree=4168576/4192956
[pid=18419] ppid=18417 vsize=1900 CPUtime=0.04
/proc/18419/stat : 18419 (tts-4-0) R 18417 18419 16665 0 -1 4194304 375 0 0 0 4 0 0 0 18 0 1 0 368560864 1945600 360 18446744073709551615 134512640 134976056 4294956704 18446744073709551615 134520410 0 0 4096 0 0 0 0 17 0 0 0
/proc/18419/statm: 475 360 58 113 0 359 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1900

[startup+0.101244 s]
/proc/loadavg: 0.91 0.97 1.02 4/77 18419
/proc/meminfo: memFree=1387272/2055920 swapFree=4168576/4192956
[pid=18419] ppid=18417 vsize=2032 CPUtime=0.09
/proc/18419/stat : 18419 (tts-4-0) R 18417 18419 16665 0 -1 4194304 398 0 0 0 9 0 0 0 18 0 1 0 368560864 2080768 383 18446744073709551615 134512640 134976056 4294956704 18446744073709551615 134538287 0 0 4096 0 0 0 0 17 0 0 0
/proc/18419/statm: 508 383 59 113 0 392 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2032

[startup+0.301264 s]
/proc/loadavg: 0.91 0.97 1.02 4/77 18419
/proc/meminfo: memFree=1387272/2055920 swapFree=4168576/4192956
[pid=18419] ppid=18417 vsize=4824 CPUtime=0.29
/proc/18419/stat : 18419 (tts-4-0) R 18417 18419 16665 0 -1 4194304 1125 0 0 0 29 0 0 0 20 0 1 0 368560864 4939776 1110 18446744073709551615 134512640 134976056 4294956704 18446744073709551615 134518644 0 0 4096 0 0 0 0 17 0 0 0
/proc/18419/statm: 1206 1110 63 113 0 1090 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4824

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

[startup+0.501285 s]
/proc/loadavg: 0.91 0.97 1.02 4/77 18419
/proc/meminfo: memFree=1387272/2055920 swapFree=4168576/4192956
[pid=18419] ppid=18417 vsize=8148 CPUtime=0.49
/proc/18419/stat : 18419 (tts-4-0) R 18417 18419 16665 0 -1 4194304 1972 0 0 0 49 0 0 0 22 0 1 0 368560864 8343552 1955 18446744073709551615 134512640 134976056 4294956704 18446744073709551615 134534049 0 0 4096 0 0 0 0 17 0 0 0
/proc/18419/statm: 2037 1955 66 113 0 1921 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 8148

Child status: 20
Real time (s): 0.58193
CPU time (s): 0.576912
CPU user time (s): 0.570913
CPU system time (s): 0.005999
CPU usage (%): 99.1377
Max. virtual memory (cumulated for all children) (KiB): 8148

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.570913
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2006
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 0.002999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node17 on Sat Mar 10 00:21:06 UTC 2007

IDJOB= 332680
IDBENCH= 24586
IDSOLVER= 98
FILE ID= node17/332680-1173486066

PBS_JOBID= 4101087

Free space on /tmp= 66511 MiB

SOLVER NAME= TTS 4.0
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/pebbling/unsat-pbl-00080.sat05-1325.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/332680-1173486066/tts-4-0 /tmp/evaluation/332680-1173486066/instance-332680-1173486066.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node17/watcher-332680-1173486066 -o ROOT/results/node17/solver-332680-1173486066 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/332680-1173486066/tts-4-0 /tmp/evaluation/332680-1173486066/instance-332680-1173486066.cnf            

META MD5SUM SOLVER= 73a7a27d0c2e86f9b1191433fde766ff
MD5SUM BENCH=  270191e44d7630b87c6baceebf140e40

RANDOM SEED= 459156482

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node17.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		: 3000.229
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		: 3000.229
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:       1387680 kB
Buffers:         50216 kB
Cached:         521804 kB
SwapCached:       2172 kB
Active:         284660 kB
Inactive:       312084 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1387680 kB
SwapTotal:     4192956 kB
SwapFree:      4168576 kB
Dirty:             976 kB
Writeback:           0 kB
Mapped:          32532 kB
Slab:            57016 kB
Committed_AS:  1426892 kB
PageTables:       1752 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= 66511 MiB

End job on node17 on Sat Mar 10 00:21:07 UTC 2007