Trace number 332848

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 110.904 110.94

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 benchmark1.75373
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)

110.85/110.92	c Command: /tmp/evaluation/332848-1173492733/tts-4-0 /tmp/evaluation/332848-1173492733/instance-332848-1173492733.cnf 
110.85/110.92	c CPU limit set to 1200.000000
110.85/110.92	c Variables = 864
110.85/110.92	c Clauses = 32700
110.85/110.92	c Literals = 256765
110.85/110.92	c Reduced size:
110.85/110.92	c Variables = 864
110.85/110.92	c Clauses = 32698
110.85/110.92	c Literals = 256506
110.85/110.92	c Independent sub-problems = 1
110.85/110.92	c Sub-problem with 862 variables
110.85/110.92	c using permutation method 4
110.85/110.92	c Ordering finished 0.860 seconds
110.85/110.92	c mapped 0.870 seconds
110.85/110.92	c permuted 0.870 seconds
110.85/110.92	c init finished 0.950 seconds
110.85/110.92	c tree built 1.150 seconds
110.85/110.92	c Partial assignments = 1089078, improvements = 400539
110.85/110.92	s UNSATISFIABLE
110.85/110.92	c Time = 110.89 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/node1/watcher-332848-1173492733 -o ROOT/results/node1/solver-332848-1173492733 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/332848-1173492733/tts-4-0 /tmp/evaluation/332848-1173492733/instance-332848-1173492733.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: 1.00 1.00 1.08 3/77 12079
/proc/meminfo: memFree=1687344/2055920 swapFree=4159120/4192956
[pid=12079] ppid=12077 vsize=796 CPUtime=0
/proc/12079/stat : 12079 (tts-4-0) R 12077 12079 11728 0 -1 4194304 108 0 0 0 0 0 0 0 18 0 1 0 369228354 815104 93 18446744073709551615 134512640 134976056 4294956704 18446744073709551615 134627035 0 0 4096 0 0 0 0 17 1 0 0
/proc/12079/statm: 199 94 57 113 0 83 0

[startup+0.0510571 s]
/proc/loadavg: 1.00 1.00 1.08 3/77 12079
/proc/meminfo: memFree=1687344/2055920 swapFree=4159120/4192956
[pid=12079] ppid=12077 vsize=2116 CPUtime=0.04
/proc/12079/stat : 12079 (tts-4-0) R 12077 12079 11728 0 -1 4194304 419 0 0 0 4 0 0 0 18 0 1 0 369228354 2166784 404 18446744073709551615 134512640 134976056 4294956704 18446744073709551615 134647773 0 0 4096 0 0 0 0 17 1 0 0
/proc/12079/statm: 529 405 57 113 0 413 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 2116

[startup+0.101062 s]
/proc/loadavg: 1.00 1.00 1.08 3/77 12079
/proc/meminfo: memFree=1687344/2055920 swapFree=4159120/4192956
[pid=12079] ppid=12077 vsize=3380 CPUtime=0.09
/proc/12079/stat : 12079 (tts-4-0) R 12077 12079 11728 0 -1 4194304 757 0 0 0 9 0 0 0 18 0 1 0 369228354 3461120 742 18446744073709551615 134512640 134976056 4294956704 18446744073709551615 134627035 0 0 4096 0 0 0 0 17 1 0 0
/proc/12079/statm: 845 742 57 113 0 729 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3380

[startup+0.301086 s]
/proc/loadavg: 1.00 1.00 1.08 3/77 12079
/proc/meminfo: memFree=1687344/2055920 swapFree=4159120/4192956
[pid=12079] ppid=12077 vsize=4336 CPUtime=0.29
/proc/12079/stat : 12079 (tts-4-0) R 12077 12079 11728 0 -1 4194304 989 0 0 0 29 0 0 0 19 0 1 0 369228354 4440064 974 18446744073709551615 134512640 134976056 4294956704 18446744073709551615 134538269 0 0 4096 0 0 0 0 17 1 0 0
/proc/12079/statm: 1084 974 59 113 0 968 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4336

[startup+0.701132 s]
/proc/loadavg: 1.00 1.00 1.08 3/77 12079
/proc/meminfo: memFree=1687344/2055920 swapFree=4159120/4192956
[pid=12079] ppid=12077 vsize=11388 CPUtime=0.69
/proc/12079/stat : 12079 (tts-4-0) R 12077 12079 11728 0 -1 4194304 2722 0 0 0 69 0 0 0 23 0 1 0 369228354 11661312 2707 18446744073709551615 134512640 134976056 4294956704 18446744073709551615 134627035 0 0 4096 0 0 0 0 17 1 0 0
/proc/12079/statm: 2847 2707 62 113 0 2731 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 11388

[startup+1.50123 s]
/proc/loadavg: 1.00 1.00 1.08 2/78 12080
/proc/meminfo: memFree=1673064/2055920 swapFree=4159120/4192956
[pid=12079] ppid=12077 vsize=21700 CPUtime=1.49
/proc/12079/stat : 12079 (tts-4-0) R 12077 12079 11728 0 -1 4194304 5393 0 0 0 148 1 0 0 25 0 1 0 369228354 22220800 5326 18446744073709551615 134512640 134976056 4294956704 18446744073709551615 134641329 0 0 4096 0 0 0 0 17 1 0 0
/proc/12079/statm: 5425 5326 66 113 0 5309 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 21700

[startup+3.10141 s]
/proc/loadavg: 1.00 1.00 1.08 2/78 12080
/proc/meminfo: memFree=1665704/2055920 swapFree=4159120/4192956
[pid=12079] ppid=12077 vsize=22916 CPUtime=3.09
/proc/12079/stat : 12079 (tts-4-0) R 12077 12079 11728 0 -1 4194304 5680 0 0 0 308 1 0 0 25 0 1 0 369228354 23465984 5613 18446744073709551615 134512640 134976056 4294956704 18446744073709551615 134535231 0 0 4096 0 0 0 0 17 1 0 0
/proc/12079/statm: 5729 5613 66 113 0 5613 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 22916

[startup+6.30179 s]
/proc/loadavg: 1.00 1.00 1.08 2/78 12080
/proc/meminfo: memFree=1662696/2055920 swapFree=4159120/4192956
[pid=12079] ppid=12077 vsize=25764 CPUtime=6.29
/proc/12079/stat : 12079 (tts-4-0) R 12077 12079 11728 0 -1 4194304 6380 0 0 0 627 2 0 0 25 0 1 0 369228354 26382336 6313 18446744073709551615 134512640 134976056 4294956704 18446744073709551615 134534071 0 0 4096 0 0 0 0 17 1 0 0
/proc/12079/statm: 6441 6313 66 113 0 6325 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 25764

[startup+12.7015 s]
/proc/loadavg: 1.00 1.00 1.08 2/78 12080
/proc/meminfo: memFree=1656104/2055920 swapFree=4159120/4192956
[pid=12079] ppid=12077 vsize=32416 CPUtime=12.68
/proc/12079/stat : 12079 (tts-4-0) R 12077 12079 11728 0 -1 4194304 8043 0 0 0 1266 2 0 0 25 0 1 0 369228354 33193984 7976 18446744073709551615 134512640 134976056 4294956704 18446744073709551615 134641316 0 0 4096 0 0 0 0 17 1 0 0
/proc/12079/statm: 8104 7976 66 113 0 7988 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 32416

[startup+25.502 s]
/proc/loadavg: 1.00 1.00 1.08 2/78 12080
/proc/meminfo: memFree=1642152/2055920 swapFree=4159120/4192956
[pid=12079] ppid=12077 vsize=45548 CPUtime=25.49
/proc/12079/stat : 12079 (tts-4-0) R 12077 12079 11728 0 -1 4194304 11365 0 0 0 2544 5 0 0 25 0 1 0 369228354 46641152 11298 18446744073709551615 134512640 134976056 4294956704 18446744073709551615 134535187 0 0 4096 0 0 0 0 17 1 0 0
/proc/12079/statm: 11387 11298 66 113 0 11271 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 45548

[startup+51.102 s]
/proc/loadavg: 1.00 1.00 1.08 2/78 12080
/proc/meminfo: memFree=1619240/2055920 swapFree=4159120/4192956
[pid=12079] ppid=12077 vsize=68896 CPUtime=51.08
/proc/12079/stat : 12079 (tts-4-0) R 12077 12079 11728 0 -1 4194304 17201 0 0 0 5101 7 0 0 25 0 1 0 369228354 70549504 17134 18446744073709551615 134512640 134976056 4294956704 18446744073709551615 134552412 0 0 4096 0 0 0 0 17 1 0 0
/proc/12079/statm: 17224 17134 66 113 0 17108 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 68896

[startup+102.306 s]
/proc/loadavg: 1.00 1.00 1.07 2/78 12080
/proc/meminfo: memFree=1577576/2055920 swapFree=4159120/4192956
[pid=12079] ppid=12077 vsize=109928 CPUtime=102.26
/proc/12079/stat : 12079 (tts-4-0) R 12077 12079 11728 0 -1 4194304 27458 0 0 0 10214 12 0 0 25 0 1 0 369228354 112566272 27391 18446744073709551615 134512640 134976056 4294956704 18446744073709551615 134535187 0 0 4096 0 0 0 0 17 1 0 0
/proc/12079/statm: 27482 27391 66 113 0 27366 0
Current children cumulated CPU time (s) 102.26
Current children cumulated vsize (KiB) 109928

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

[startup+105.501 s]
/proc/loadavg: 1.00 1.00 1.07 2/78 12080
/proc/meminfo: memFree=1575720/2055920 swapFree=4159120/4192956
[pid=12079] ppid=12077 vsize=111804 CPUtime=105.46
/proc/12079/stat : 12079 (tts-4-0) R 12077 12079 11728 0 -1 4194304 27902 0 0 0 10533 13 0 0 25 0 1 0 369228354 114487296 27835 18446744073709551615 134512640 134976056 4294956704 18446744073709551615 134535187 0 0 4096 0 0 0 0 17 1 0 0
/proc/12079/statm: 27951 27835 66 113 0 27835 0
Current children cumulated CPU time (s) 105.46
Current children cumulated vsize (KiB) 111804

[startup+108.702 s]
/proc/loadavg: 1.00 1.00 1.07 2/78 12080
/proc/meminfo: memFree=1574696/2055920 swapFree=4159120/4192956
[pid=12079] ppid=12077 vsize=113208 CPUtime=108.66
/proc/12079/stat : 12079 (tts-4-0) R 12077 12079 11728 0 -1 4194304 28291 0 0 0 10853 13 0 0 25 0 1 0 369228354 115924992 28224 18446744073709551615 134512640 134976056 4294956704 18446744073709551615 134535187 0 0 4096 0 0 0 0 17 1 0 0
/proc/12079/statm: 28302 28224 66 113 0 28186 0
Current children cumulated CPU time (s) 108.66
Current children cumulated vsize (KiB) 113208

[startup+110.302 s]
/proc/loadavg: 1.00 1.00 1.07 2/78 12080
/proc/meminfo: memFree=1573544/2055920 swapFree=4159120/4192956
[pid=12079] ppid=12077 vsize=114148 CPUtime=110.26
/proc/12079/stat : 12079 (tts-4-0) R 12077 12079 11728 0 -1 4194304 28479 0 0 0 11013 13 0 0 25 0 1 0 369228354 116887552 28412 18446744073709551615 134512640 134976056 4294956704 18446744073709551615 134534048 0 0 4096 0 0 0 0 17 1 0 0
/proc/12079/statm: 28537 28412 66 113 0 28421 0
Current children cumulated CPU time (s) 110.26
Current children cumulated vsize (KiB) 114148

[startup+110.702 s]
/proc/loadavg: 1.00 1.00 1.07 2/78 12080
/proc/meminfo: memFree=1573544/2055920 swapFree=4159120/4192956
[pid=12079] ppid=12077 vsize=114148 CPUtime=110.65
/proc/12079/stat : 12079 (tts-4-0) R 12077 12079 11728 0 -1 4194304 28527 0 0 0 11052 13 0 0 25 0 1 0 369228354 116887552 28460 18446744073709551615 134512640 134976056 4294956704 18446744073709551615 134534117 0 0 4096 0 0 0 0 17 1 0 0
/proc/12079/statm: 28537 28460 66 113 0 28421 0
Current children cumulated CPU time (s) 110.65
Current children cumulated vsize (KiB) 114148

[startup+110.902 s]
/proc/loadavg: 1.00 1.00 1.07 2/78 12080
/proc/meminfo: memFree=1573544/2055920 swapFree=4159120/4192956
[pid=12079] ppid=12077 vsize=114380 CPUtime=110.85
/proc/12079/stat : 12079 (tts-4-0) R 12077 12079 11728 0 -1 4194304 28551 0 0 0 11072 13 0 0 25 0 1 0 369228354 117125120 28484 18446744073709551615 134512640 134976056 4294956704 18446744073709551615 134641324 0 0 4096 0 0 0 0 17 1 0 0
/proc/12079/statm: 28595 28484 66 113 0 28479 0
Current children cumulated CPU time (s) 110.85
Current children cumulated vsize (KiB) 114380

Child status: 20
Real time (s): 110.94
CPU time (s): 110.904
CPU user time (s): 110.747
CPU system time (s): 0.156976
CPU usage (%): 99.9681
Max. virtual memory (cumulated for all children) (KiB): 114380

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 110.747
system time used= 0.156976
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 28555
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= 2342

runsolver used 0.159975 second user time and 0.250961 second system time

The end

Launcher Data (download as text)

Begin job on node1 on Sat Mar 10 02:12:13 UTC 2007

IDJOB= 332848
IDBENCH= 24590
IDSOLVER= 98
FILE ID= node1/332848-1173492733

PBS_JOBID= 4101102

Free space on /tmp= 66401 MiB

SOLVER NAME= TTS 4.0
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/pebbling/unsat-pbl-00250.sat05-1330.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/332848-1173492733/tts-4-0 /tmp/evaluation/332848-1173492733/instance-332848-1173492733.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node1/watcher-332848-1173492733 -o ROOT/results/node1/solver-332848-1173492733 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/332848-1173492733/tts-4-0 /tmp/evaluation/332848-1173492733/instance-332848-1173492733.cnf            

META MD5SUM SOLVER= 73a7a27d0c2e86f9b1191433fde766ff
MD5SUM BENCH=  922dc9f32281b0c4efd640c112a641b6

RANDOM SEED= 832411220

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node1.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		: 3000.230
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		: 3000.230
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:       1687752 kB
Buffers:         39632 kB
Cached:         255088 kB
SwapCached:      13660 kB
Active:         140668 kB
Inactive:       176848 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1687752 kB
SwapTotal:     4192956 kB
SwapFree:      4159120 kB
Dirty:            1712 kB
Writeback:           0 kB
Mapped:          29580 kB
Slab:            36208 kB
Committed_AS:  1148624 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= 66401 MiB

End job on node1 on Sat Mar 10 02:14:04 UTC 2007