Trace number 338686

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 24.1883 24.1973

General information on the benchmark

Namecrafted/Difficult/contest05/sabharwal/
counting-easier-php-018-014.sat05-1175.reshuffled-07.cnf
MD5SUMbc769deecd9ed9694b8be132b5bd15cd
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark24.1883
Satisfiable
(Un)Satisfiability was proved
Number of variables252
Number of clauses2160
Sum of the clauses size4536
Maximum clause length14
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22142
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 518

Solver Data (download as text)

24.08/24.19	c Command: /tmp/evaluation/338686-1173690270/tts-4-0 /tmp/evaluation/338686-1173690270/instance-338686-1173690270.cnf 
24.08/24.19	c CPU limit set to 1200.000000
24.08/24.19	c Variables = 252
24.08/24.19	c Clauses = 2160
24.08/24.19	c Literals = 4536
24.08/24.19	c Reduced size:
24.08/24.19	c Variables = 252
24.08/24.19	c Clauses = 2160
24.08/24.19	c Literals = 4536
24.08/24.19	c Independent sub-problems = 1
24.08/24.19	c Sub-problem with 252 variables
24.08/24.19	c using permutation method 4
24.08/24.19	c Ordering finished 0.000 seconds
24.08/24.19	c mapped 0.010 seconds
24.08/24.19	c permuted 0.010 seconds
24.08/24.19	c init finished 0.010 seconds
24.08/24.19	c tree built 0.010 seconds
24.08/24.19	c Partial assignments = 1502251, improvements = 256654
24.08/24.19	s UNSATISFIABLE
24.08/24.19	c Time = 24.18 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/node2/watcher-338686-1173690270 -o ROOT/results/node2/solver-338686-1173690270 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/338686-1173690270/tts-4-0 /tmp/evaluation/338686-1173690270/instance-338686-1173690270.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: 1.83 1.82 1.44 3/77 15901
/proc/meminfo: memFree=1423024/2055920 swapFree=4153164/4192956
[pid=15901] ppid=15899 vsize=928 CPUtime=0
/proc/15901/stat : 15901 (tts-4-0) R 15899 15901 13517 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 388981920 950272 117 18446744073709551615 134512640 134976056 4294956720 18446744073709551615 134627035 0 0 4096 0 0 0 0 17 1 0 0
/proc/15901/statm: 232 118 59 113 0 116 0

[startup+0.0412641 s]
/proc/loadavg: 1.83 1.82 1.44 3/77 15901
/proc/meminfo: memFree=1423024/2055920 swapFree=4153164/4192956
[pid=15901] ppid=15899 vsize=1612 CPUtime=0.03
/proc/15901/stat : 15901 (tts-4-0) R 15899 15901 13517 0 -1 4194304 338 0 0 0 3 0 0 0 18 0 1 0 388981920 1650688 323 18446744073709551615 134512640 134976056 4294956720 18446744073709551615 134535181 0 0 4096 0 0 0 0 17 1 0 0
/proc/15901/statm: 403 323 66 113 0 287 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1612

[startup+0.10127 s]
/proc/loadavg: 1.83 1.82 1.44 3/77 15901
/proc/meminfo: memFree=1423024/2055920 swapFree=4153164/4192956
[pid=15901] ppid=15899 vsize=1844 CPUtime=0.09
/proc/15901/stat : 15901 (tts-4-0) R 15899 15901 13517 0 -1 4194304 361 0 0 0 9 0 0 0 18 0 1 0 388981920 1888256 346 18446744073709551615 134512640 134976056 4294956720 18446744073709551615 134534156 0 0 4096 0 0 0 0 17 1 0 0
/proc/15901/statm: 461 346 66 113 0 345 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1844

[startup+0.301291 s]
/proc/loadavg: 1.83 1.82 1.44 3/77 15901
/proc/meminfo: memFree=1423024/2055920 swapFree=4153164/4192956
[pid=15901] ppid=15899 vsize=2080 CPUtime=0.29
/proc/15901/stat : 15901 (tts-4-0) R 15899 15901 13517 0 -1 4194304 434 0 0 0 29 0 0 0 19 0 1 0 388981920 2129920 419 18446744073709551615 134512640 134976056 4294956720 18446744073709551615 134641336 0 0 4096 0 0 0 0 17 1 0 0
/proc/15901/statm: 520 419 66 113 0 404 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2080

[startup+0.701333 s]
/proc/loadavg: 1.83 1.82 1.44 3/77 15901
/proc/meminfo: memFree=1423024/2055920 swapFree=4153164/4192956
[pid=15901] ppid=15899 vsize=2552 CPUtime=0.69
/proc/15901/stat : 15901 (tts-4-0) R 15899 15901 13517 0 -1 4194304 547 0 0 0 69 0 0 0 23 0 1 0 388981920 2613248 532 18446744073709551615 134512640 134976056 4294956720 18446744073709551615 134591882 0 0 4096 0 0 0 0 17 1 0 0
/proc/15901/statm: 638 532 66 113 0 522 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2552

[startup+1.50142 s]
/proc/loadavg: 1.83 1.82 1.44 2/78 15902
/proc/meminfo: memFree=1420840/2055920 swapFree=4153164/4192956
[pid=15901] ppid=15899 vsize=3256 CPUtime=1.49
/proc/15901/stat : 15901 (tts-4-0) R 15899 15901 13517 0 -1 4194304 721 0 0 0 149 0 0 0 25 0 1 0 388981920 3334144 706 18446744073709551615 134512640 134976056 4294956720 18446744073709551615 134534389 0 0 4096 0 0 0 0 17 1 0 0
/proc/15901/statm: 814 706 66 113 0 698 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3256

[startup+3.10158 s]
/proc/loadavg: 1.83 1.82 1.44 2/78 15902
/proc/meminfo: memFree=1419688/2055920 swapFree=4153164/4192956
[pid=15901] ppid=15899 vsize=4664 CPUtime=3.09
/proc/15901/stat : 15901 (tts-4-0) R 15899 15901 13517 0 -1 4194304 1063 0 0 0 309 0 0 0 25 0 1 0 388981920 4775936 1048 18446744073709551615 134512640 134976056 4294956720 18446744073709551615 134552417 0 0 4096 0 0 0 0 17 1 0 0
/proc/15901/statm: 1166 1048 66 113 0 1050 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 4664

[startup+6.30191 s]
/proc/loadavg: 1.77 1.80 1.43 2/78 15902
/proc/meminfo: memFree=1417192/2055920 swapFree=4153164/4192956
[pid=15901] ppid=15899 vsize=6776 CPUtime=6.29
/proc/15901/stat : 15901 (tts-4-0) R 15899 15901 13517 0 -1 4194304 1625 0 0 0 629 0 0 0 25 0 1 0 388981920 6938624 1610 18446744073709551615 134512640 134976056 4294956720 18446744073709551615 134535181 0 0 4096 0 0 0 0 17 1 0 0
/proc/15901/statm: 1694 1610 66 113 0 1578 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 6776

[startup+12.7016 s]
/proc/loadavg: 1.71 1.79 1.43 2/78 15902
/proc/meminfo: memFree=1412328/2055920 swapFree=4153164/4192956
[pid=15901] ppid=15899 vsize=11468 CPUtime=12.69
/proc/15901/stat : 15901 (tts-4-0) R 15899 15901 13517 0 -1 4194304 2797 0 0 0 1268 1 0 0 25 0 1 0 388981920 11743232 2782 18446744073709551615 134512640 134976056 4294956720 18446744073709551615 134534114 0 0 4096 0 0 0 0 17 1 0 0
/proc/15901/statm: 2867 2782 66 113 0 2751 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 11468

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

[startup+19.1012 s]
/proc/loadavg: 1.60 1.76 1.43 2/78 15902
/proc/meminfo: memFree=1408424/2055920 swapFree=4153164/4192956
[pid=15901] ppid=15899 vsize=15216 CPUtime=19.08
/proc/15901/stat : 15901 (tts-4-0) R 15899 15901 13517 0 -1 4194304 3735 0 0 0 1907 1 0 0 25 0 1 0 388981920 15581184 3720 18446744073709551615 134512640 134976056 4294956720 18446744073709551615 134543315 0 0 4096 0 0 0 0 17 1 0 0
/proc/15901/statm: 3804 3720 66 113 0 3688 0
Current children cumulated CPU time (s) 19.08
Current children cumulated vsize (KiB) 15216

[startup+22.3016 s]
/proc/loadavg: 1.60 1.76 1.43 2/78 15902
/proc/meminfo: memFree=1406952/2055920 swapFree=4153164/4192956
[pid=15901] ppid=15899 vsize=16624 CPUtime=22.28
/proc/15901/stat : 15901 (tts-4-0) R 15899 15901 13517 0 -1 4194304 4075 0 0 0 2227 1 0 0 25 0 1 0 388981920 17022976 4060 18446744073709551615 134512640 134976056 4294956720 18446744073709551615 134542401 0 0 4096 0 0 0 0 17 1 0 0
/proc/15901/statm: 4156 4060 66 113 0 4040 0
Current children cumulated CPU time (s) 22.28
Current children cumulated vsize (KiB) 16624

[startup+23.1057 s]
/proc/loadavg: 1.60 1.76 1.43 2/78 15902
/proc/meminfo: memFree=1406568/2055920 swapFree=4153164/4192956
[pid=15901] ppid=15899 vsize=16856 CPUtime=23.08
/proc/15901/stat : 15901 (tts-4-0) R 15899 15901 13517 0 -1 4194304 4139 0 0 0 2307 1 0 0 25 0 1 0 388981920 17260544 4124 18446744073709551615 134512640 134976056 4294956720 18446744073709551615 134534396 0 0 4096 0 0 0 0 17 1 0 0
/proc/15901/statm: 4214 4124 66 113 0 4098 0
Current children cumulated CPU time (s) 23.08
Current children cumulated vsize (KiB) 16856

[startup+23.9017 s]
/proc/loadavg: 1.60 1.76 1.43 2/78 15902
/proc/meminfo: memFree=1406568/2055920 swapFree=4153164/4192956
[pid=15901] ppid=15899 vsize=17092 CPUtime=23.88
/proc/15901/stat : 15901 (tts-4-0) R 15899 15901 13517 0 -1 4194304 4200 0 0 0 2387 1 0 0 25 0 1 0 388981920 17502208 4185 18446744073709551615 134512640 134976056 4294956720 18446744073709551615 134534054 0 0 4096 0 0 0 0 17 1 0 0
/proc/15901/statm: 4273 4185 66 113 0 4157 0
Current children cumulated CPU time (s) 23.88
Current children cumulated vsize (KiB) 17092

[startup+24.1018 s]
/proc/loadavg: 1.55 1.75 1.43 2/78 15902
/proc/meminfo: memFree=1406248/2055920 swapFree=4153164/4192956
[pid=15901] ppid=15899 vsize=17092 CPUtime=24.08
/proc/15901/stat : 15901 (tts-4-0) R 15899 15901 13517 0 -1 4194304 4213 0 0 0 2407 1 0 0 25 0 1 0 388981920 17502208 4198 18446744073709551615 134512640 134976056 4294956720 18446744073709551615 134534114 0 0 4096 0 0 0 0 17 1 0 0
/proc/15901/statm: 4273 4198 66 113 0 4157 0
Current children cumulated CPU time (s) 24.08
Current children cumulated vsize (KiB) 17092

Child status: 20
Real time (s): 24.1973
CPU time (s): 24.1883
CPU user time (s): 24.1663
CPU system time (s): 0.021996
CPU usage (%): 99.9627
Max. virtual memory (cumulated for all children) (KiB): 17092

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 24.1663
system time used= 0.021996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4223
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= 36

runsolver used 0.031995 second user time and 0.06199 second system time

The end

Launcher Data (download as text)

Begin job on node2 on Mon Mar 12 09:04:30 UTC 2007

IDJOB= 338686
IDBENCH= 24729
IDSOLVER= 98
FILE ID= node2/338686-1173690270

PBS_JOBID= 4101474

Free space on /tmp= 66536 MiB

SOLVER NAME= TTS 4.0
BENCH NAME= HOME/pub/bench/SAT07/crafted/Difficult/contest05/sabharwal/counting-easier-php-018-014.sat05-1175.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/338686-1173690270/tts-4-0 /tmp/evaluation/338686-1173690270/instance-338686-1173690270.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node2/watcher-338686-1173690270 -o ROOT/results/node2/solver-338686-1173690270 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/338686-1173690270/tts-4-0 /tmp/evaluation/338686-1173690270/instance-338686-1173690270.cnf            

META MD5SUM SOLVER= 73a7a27d0c2e86f9b1191433fde766ff
MD5SUM BENCH=  bc769deecd9ed9694b8be132b5bd15cd

RANDOM SEED= 368630903

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node2.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		: 3000.247
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		: 3000.247
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:       1423496 kB
Buffers:         49840 kB
Cached:         497752 kB
SwapCached:       2528 kB
Active:         377676 kB
Inactive:       193356 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1423496 kB
SwapTotal:     4192956 kB
SwapFree:      4153164 kB
Dirty:             572 kB
Writeback:           0 kB
Mapped:          30772 kB
Slab:            46896 kB
Committed_AS:  1727964 kB
PageTables:       1816 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= 66536 MiB

End job on node2 on Mon Mar 12 09:04:54 UTC 2007