Trace number 338728

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 6.40502 6.40969

General information on the benchmark

Namecrafted/Difficult/contest05/sabharwal/
counting-harder-php-014-013.sat05-1187.reshuffled-07.cnf
MD5SUMe9a4b8de00c9a73b6f8447e11f01f363
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark6.40502
Satisfiable
(Un)Satisfiability was proved
Number of variables182
Number of clauses1197
Sum of the clauses size2548
Maximum clause length13
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 21183
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)

6.38/6.40	c Command: /tmp/evaluation/338728-1173691170/tts-4-0 /tmp/evaluation/338728-1173691170/instance-338728-1173691170.cnf 
6.38/6.40	c CPU limit set to 1200.000000
6.38/6.40	c Variables = 182
6.38/6.40	c Clauses = 1197
6.38/6.40	c Literals = 2548
6.38/6.40	c Reduced size:
6.38/6.40	c Variables = 182
6.38/6.40	c Clauses = 1197
6.38/6.40	c Literals = 2548
6.38/6.40	c Independent sub-problems = 1
6.38/6.40	c Sub-problem with 182 variables
6.38/6.40	c using permutation method 4
6.38/6.40	c Ordering finished 0.000 seconds
6.38/6.40	c mapped 0.000 seconds
6.38/6.40	c permuted 0.000 seconds
6.38/6.40	c init finished 0.000 seconds
6.38/6.40	c tree built 0.000 seconds
6.38/6.40	c Partial assignments = 573734, improvements = 98564
6.38/6.40	s UNSATISFIABLE
6.38/6.40	c Time = 6.39 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/node26/watcher-338728-1173691170 -o ROOT/results/node26/solver-338728-1173691170 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/338728-1173691170/tts-4-0 /tmp/evaluation/338728-1173691170/instance-338728-1173691170.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: 0.92 0.97 0.99 3/77 8943
/proc/meminfo: memFree=1737904/2055920 swapFree=4154888/4192956
[pid=8943] ppid=8941 vsize=1060 CPUtime=0
/proc/8943/stat : 8943 (tts-4-0) R 8941 8943 6020 0 -1 4194304 169 0 0 0 0 0 0 0 18 0 1 0 389070686 1085440 154 18446744073709551615 134512640 134976056 4294956720 18446744073709551615 134627035 0 0 4096 0 0 0 0 17 1 0 0
/proc/8943/statm: 265 154 62 113 0 149 0

[startup+0.049975 s]
/proc/loadavg: 0.92 0.97 0.99 3/77 8943
/proc/meminfo: memFree=1737904/2055920 swapFree=4154888/4192956
[pid=8943] ppid=8941 vsize=1340 CPUtime=0.04
/proc/8943/stat : 8943 (tts-4-0) R 8941 8943 6020 0 -1 4194304 264 0 0 0 4 0 0 0 18 0 1 0 389070686 1372160 249 18446744073709551615 134512640 134976056 4294956720 18446744073709551615 134535187 0 0 4096 0 0 0 0 17 1 0 0
/proc/8943/statm: 335 249 66 113 0 219 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1340

[startup+0.101985 s]
/proc/loadavg: 0.92 0.97 0.99 3/77 8943
/proc/meminfo: memFree=1737904/2055920 swapFree=4154888/4192956
[pid=8943] ppid=8941 vsize=1492 CPUtime=0.09
/proc/8943/stat : 8943 (tts-4-0) R 8941 8943 6020 0 -1 4194304 291 0 0 0 9 0 0 0 18 0 1 0 389070686 1527808 276 18446744073709551615 134512640 134976056 4294956720 18446744073709551615 134534110 0 0 4096 0 0 0 0 17 1 0 0
/proc/8943/statm: 373 276 66 113 0 257 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1492

[startup+0.302019 s]
/proc/loadavg: 0.92 0.97 0.99 3/77 8943
/proc/meminfo: memFree=1737904/2055920 swapFree=4154888/4192956
[pid=8943] ppid=8941 vsize=1732 CPUtime=0.29
/proc/8943/stat : 8943 (tts-4-0) R 8941 8943 6020 0 -1 4194304 374 0 0 0 29 0 0 0 19 0 1 0 389070686 1773568 359 18446744073709551615 134512640 134976056 4294956720 18446744073709551615 134535884 0 0 4096 0 0 0 0 17 1 0 0
/proc/8943/statm: 433 359 66 113 0 317 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1732

[startup+0.701089 s]
/proc/loadavg: 0.92 0.97 0.99 3/77 8943
/proc/meminfo: memFree=1737904/2055920 swapFree=4154888/4192956
[pid=8943] ppid=8941 vsize=2440 CPUtime=0.69
/proc/8943/stat : 8943 (tts-4-0) R 8941 8943 6020 0 -1 4194304 535 0 0 0 69 0 0 0 23 0 1 0 389070686 2498560 520 18446744073709551615 134512640 134976056 4294956720 18446744073709551615 134534354 0 0 4096 0 0 0 0 17 1 0 0
/proc/8943/statm: 610 520 66 113 0 494 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2440

[startup+1.50123 s]
/proc/loadavg: 0.92 0.97 0.99 4/78 8944
/proc/meminfo: memFree=1735656/2055920 swapFree=4154888/4192956
[pid=8943] ppid=8941 vsize=3612 CPUtime=1.49
/proc/8943/stat : 8943 (tts-4-0) R 8941 8943 6020 0 -1 4194304 800 0 0 0 149 0 0 0 25 0 1 0 389070686 3698688 785 18446744073709551615 134512640 134976056 4294956720 18446744073709551615 134535187 0 0 4096 0 0 0 0 17 1 0 0
/proc/8943/statm: 903 785 66 113 0 787 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3612

[startup+3.1015 s]
/proc/loadavg: 0.93 0.97 0.99 2/78 8944
/proc/meminfo: memFree=1734248/2055920 swapFree=4154888/4192956
[pid=8943] ppid=8941 vsize=5256 CPUtime=3.09
/proc/8943/stat : 8943 (tts-4-0) R 8941 8943 6020 0 -1 4194304 1227 0 0 0 309 0 0 0 25 0 1 0 389070686 5382144 1212 18446744073709551615 134512640 134976056 4294956720 18446744073709551615 134552143 0 0 4096 0 0 0 0 17 1 0 0
/proc/8943/statm: 1314 1212 66 113 0 1198 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 5256

[startup+6.30106 s]
/proc/loadavg: 0.93 0.97 0.99 2/78 8944
/proc/meminfo: memFree=1730984/2055920 swapFree=4154888/4192956
[pid=8943] ppid=8941 vsize=7832 CPUtime=6.28
/proc/8943/stat : 8943 (tts-4-0) R 8941 8943 6020 0 -1 4194304 1871 0 0 0 628 0 0 0 25 0 1 0 389070686 8019968 1856 18446744073709551615 134512640 134976056 4294956720 18446744073709551615 134534117 0 0 4096 0 0 0 0 17 1 0 0
/proc/8943/statm: 1958 1856 66 113 0 1842 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 7832

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

[startup+6.40108 s]
/proc/loadavg: 0.93 0.97 0.99 2/78 8944
/proc/meminfo: memFree=1730984/2055920 swapFree=4154888/4192956
[pid=8943] ppid=8941 vsize=7832 CPUtime=6.38
/proc/8943/stat : 8943 (tts-4-0) R 8941 8943 6020 0 -1 4194304 1883 0 0 0 638 0 0 0 25 0 1 0 389070686 8019968 1868 18446744073709551615 134512640 134976056 4294956720 18446744073709551615 134534379 0 0 4096 0 0 0 0 17 1 0 0
/proc/8943/statm: 1958 1868 66 113 0 1842 0
Current children cumulated CPU time (s) 6.38
Current children cumulated vsize (KiB) 7832

Child status: 20
Real time (s): 6.40969
CPU time (s): 6.40502
CPU user time (s): 6.39503
CPU system time (s): 0.009998
CPU usage (%): 99.9272
Max. virtual memory (cumulated for all children) (KiB): 7832

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.39503
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= 1885
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= 144

runsolver used 0.014997 second user time and 0.016997 second system time

The end

Launcher Data (download as text)

Begin job on node26 on Mon Mar 12 09:19:30 UTC 2007

IDJOB= 338728
IDBENCH= 24730
IDSOLVER= 98
FILE ID= node26/338728-1173691170

PBS_JOBID= 4101460

Free space on /tmp= 66560 MiB

SOLVER NAME= TTS 4.0
BENCH NAME= HOME/pub/bench/SAT07/crafted/Difficult/contest05/sabharwal/counting-harder-php-014-013.sat05-1187.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/338728-1173691170/tts-4-0 /tmp/evaluation/338728-1173691170/instance-338728-1173691170.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node26/watcher-338728-1173691170 -o ROOT/results/node26/solver-338728-1173691170 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/338728-1173691170/tts-4-0 /tmp/evaluation/338728-1173691170/instance-338728-1173691170.cnf            

META MD5SUM SOLVER= 73a7a27d0c2e86f9b1191433fde766ff
MD5SUM BENCH=  e9a4b8de00c9a73b6f8447e11f01f363

RANDOM SEED= 988252674

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node26.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		: 3000.279
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		: 3000.279
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:       1738312 kB
Buffers:         44300 kB
Cached:         186768 kB
SwapCached:      17540 kB
Active:         132268 kB
Inactive:       124504 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1738312 kB
SwapTotal:     4192956 kB
SwapFree:      4154888 kB
Dirty:             656 kB
Writeback:           0 kB
Mapped:          30456 kB
Slab:            46472 kB
Committed_AS:   859656 kB
PageTables:       1712 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= 66560 MiB

End job on node26 on Mon Mar 12 09:19:37 UTC 2007