Trace number 370088

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 110.757 110.799

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 benchmark1.71574
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)

110.65/110.77	c Command: /tmp/evaluation/370088-1177551937/tts-4-0 /tmp/evaluation/370088-1177551937/instance-370088-1177551937.cnf 
110.65/110.77	c CPU limit set to 5000.000000
110.65/110.77	c Variables = 864
110.65/110.77	c Clauses = 32700
110.65/110.77	c Literals = 256765
110.65/110.77	c Reduced size:
110.65/110.77	c Variables = 864
110.65/110.77	c Clauses = 32698
110.65/110.77	c Literals = 256506
110.65/110.77	c Independent sub-problems = 1
110.65/110.77	c Sub-problem with 862 variables
110.65/110.77	c using permutation method 4
110.65/110.77	c Ordering finished 0.860 seconds
110.65/110.77	c mapped 0.880 seconds
110.65/110.77	c permuted 0.880 seconds
110.65/110.77	c init finished 0.960 seconds
110.65/110.77	c tree built 1.160 seconds
110.65/110.77	c Partial assignments = 1089078, improvements = 400539
110.65/110.77	s UNSATISFIABLE
110.65/110.77	c Time = 110.75 seconds

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node67/watcher-370088-1177551937 -o ROOT/results/node67/solver-370088-1177551937 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/370088-1177551937/tts-4-0 /tmp/evaluation/370088-1177551937/instance-370088-1177551937.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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 1.03 0.96 3/64 29489
/proc/meminfo: memFree=1649824/2055920 swapFree=4182956/4192956
[pid=29489] ppid=29487 vsize=796 CPUtime=0
/proc/29489/stat : 29489 (tts-4-0) R 29487 29489 28824 0 -1 4194304 105 0 0 0 0 0 0 0 18 0 1 0 231183229 815104 91 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134627035 0 0 4096 0 0 0 0 17 1 0 0
/proc/29489/statm: 199 92 57 113 0 83 0

[startup+0.087953 s]
/proc/loadavg: 0.91 1.03 0.96 3/64 29489
/proc/meminfo: memFree=1649824/2055920 swapFree=4182956/4192956
[pid=29489] ppid=29487 vsize=3116 CPUtime=0.08
/proc/29489/stat : 29489 (tts-4-0) R 29487 29489 28824 0 -1 4194304 661 0 0 0 8 0 0 0 18 0 1 0 231183229 3190784 647 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134522241 0 0 4096 0 0 0 0 17 1 0 0
/proc/29489/statm: 779 648 57 113 0 663 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 3116

[startup+0.101956 s]
/proc/loadavg: 0.91 1.03 0.96 3/64 29489
/proc/meminfo: memFree=1649824/2055920 swapFree=4182956/4192956
[pid=29489] ppid=29487 vsize=3380 CPUtime=0.09
/proc/29489/stat : 29489 (tts-4-0) R 29487 29489 28824 0 -1 4194304 754 0 0 0 9 0 0 0 18 0 1 0 231183229 3461120 740 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134647773 0 0 4096 0 0 0 0 17 1 0 0
/proc/29489/statm: 845 741 57 113 0 729 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3380

[startup+0.301991 s]
/proc/loadavg: 0.91 1.03 0.96 3/64 29489
/proc/meminfo: memFree=1649824/2055920 swapFree=4182956/4192956
[pid=29489] ppid=29487 vsize=4336 CPUtime=0.29
/proc/29489/stat : 29489 (tts-4-0) R 29487 29489 28824 0 -1 4194304 988 0 0 0 29 0 0 0 19 0 1 0 231183229 4440064 974 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134538287 0 0 4096 0 0 0 0 17 1 0 0
/proc/29489/statm: 1084 974 59 113 0 968 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4336

[startup+0.701065 s]
/proc/loadavg: 0.91 1.03 0.96 3/64 29489
/proc/meminfo: memFree=1649824/2055920 swapFree=4182956/4192956
[pid=29489] ppid=29487 vsize=11388 CPUtime=0.69
/proc/29489/stat : 29489 (tts-4-0) R 29487 29489 28824 0 -1 4194304 2715 0 0 0 69 0 0 0 22 0 1 0 231183229 11661312 2701 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134627035 0 0 4096 0 0 0 0 17 1 0 0
/proc/29489/statm: 2847 2701 62 113 0 2731 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 11388

[startup+1.50121 s]
/proc/loadavg: 0.91 1.03 0.96 2/65 29490
/proc/meminfo: memFree=1635872/2055920 swapFree=4182956/4192956
[pid=29489] ppid=29487 vsize=21700 CPUtime=1.49
/proc/29489/stat : 29489 (tts-4-0) R 29487 29489 28824 0 -1 4194304 5391 0 0 0 148 1 0 0 25 0 1 0 231183229 22220800 5325 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134534408 0 0 4096 0 0 0 0 17 1 0 0
/proc/29489/statm: 5425 5325 66 113 0 5309 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 21700

[startup+3.1015 s]
/proc/loadavg: 0.92 1.03 0.96 2/65 29490
/proc/meminfo: memFree=1628256/2055920 swapFree=4182956/4192956
[pid=29489] ppid=29487 vsize=22916 CPUtime=3.09
/proc/29489/stat : 29489 (tts-4-0) R 29487 29489 28824 0 -1 4194304 5677 0 0 0 307 2 0 0 25 0 1 0 231183229 23465984 5611 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134534364 0 0 4096 0 0 0 0 17 1 0 0
/proc/29489/statm: 5729 5611 66 113 0 5613 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 22916

[startup+6.30108 s]
/proc/loadavg: 0.92 1.03 0.96 2/65 29490
/proc/meminfo: memFree=1625384/2055920 swapFree=4182956/4192956
[pid=29489] ppid=29487 vsize=25632 CPUtime=6.29
/proc/29489/stat : 29489 (tts-4-0) R 29487 29489 28824 0 -1 4194304 6370 0 0 0 627 2 0 0 25 0 1 0 231183229 26247168 6304 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134543308 0 0 4096 0 0 0 0 17 1 0 0
/proc/29489/statm: 6408 6304 66 113 0 6292 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 25632

[startup+12.7013 s]
/proc/loadavg: 0.92 1.03 0.96 2/65 29490
/proc/meminfo: memFree=1618728/2055920 swapFree=4182956/4192956
[pid=29489] ppid=29487 vsize=32416 CPUtime=12.69
/proc/29489/stat : 29489 (tts-4-0) R 29487 29489 28824 0 -1 4194304 8047 0 0 0 1266 3 0 0 25 0 1 0 231183229 33193984 7981 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134534120 0 0 4096 0 0 0 0 17 1 0 0
/proc/29489/statm: 8104 7981 66 113 0 7988 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 32416

[startup+25.5016 s]
/proc/loadavg: 0.94 1.03 0.96 2/65 29490
/proc/meminfo: memFree=1604776/2055920 swapFree=4182956/4192956
[pid=29489] ppid=29487 vsize=45548 CPUtime=25.48
/proc/29489/stat : 29489 (tts-4-0) R 29487 29489 28824 0 -1 4194304 11363 0 0 0 2544 4 0 0 25 0 1 0 231183229 46641152 11297 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134535231 0 0 4096 0 0 0 0 17 1 0 0
/proc/29489/statm: 11387 11297 66 113 0 11271 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 45548

[startup+51.1012 s]
/proc/loadavg: 0.96 1.02 0.96 2/65 29490
/proc/meminfo: memFree=1581800/2055920 swapFree=4182956/4192956
[pid=29489] ppid=29487 vsize=68896 CPUtime=51.08
/proc/29489/stat : 29489 (tts-4-0) R 29487 29489 28824 0 -1 4194304 17212 0 0 0 5101 7 0 0 25 0 1 0 231183229 70549504 17146 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134535187 0 0 4096 0 0 0 0 17 1 0 0
/proc/29489/statm: 17224 17146 66 113 0 17108 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 68896

[startup+102.305 s]
/proc/loadavg: 0.98 1.02 0.96 2/65 29490
/proc/meminfo: memFree=1540072/2055920 swapFree=4182956/4192956
[pid=29489] ppid=29487 vsize=110160 CPUtime=102.26
/proc/29489/stat : 29489 (tts-4-0) R 29487 29489 28824 0 -1 4194304 27479 0 0 0 10215 11 0 0 25 0 1 0 231183229 112803840 27413 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134534114 0 0 4096 0 0 0 0 17 1 0 0
/proc/29489/statm: 27540 27413 66 113 0 27424 0
Current children cumulated CPU time (s) 102.26
Current children cumulated vsize (KiB) 110160

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

[startup+105.501 s]
/proc/loadavg: 0.98 1.02 0.96 2/65 29490
/proc/meminfo: memFree=1538216/2055920 swapFree=4182956/4192956
[pid=29489] ppid=29487 vsize=111804 CPUtime=105.46
/proc/29489/stat : 29489 (tts-4-0) R 29487 29489 28824 0 -1 4194304 27915 0 0 0 10535 11 0 0 25 0 1 0 231183229 114487296 27849 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134534364 0 0 4096 0 0 0 0 17 1 0 0
/proc/29489/statm: 27951 27849 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: 0.98 1.02 0.96 2/65 29490
/proc/meminfo: memFree=1537192/2055920 swapFree=4182956/4192956
[pid=29489] ppid=29487 vsize=113444 CPUtime=108.65
/proc/29489/stat : 29489 (tts-4-0) R 29487 29489 28824 0 -1 4194304 28301 0 0 0 10854 11 0 0 25 0 1 0 231183229 116166656 28235 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134534114 0 0 4096 0 0 0 0 17 1 0 0
/proc/29489/statm: 28361 28235 66 113 0 28245 0
Current children cumulated CPU time (s) 108.65
Current children cumulated vsize (KiB) 113444

[startup+109.502 s]
/proc/loadavg: 0.98 1.02 0.96 2/65 29490
/proc/meminfo: memFree=1536616/2055920 swapFree=4182956/4192956
[pid=29489] ppid=29487 vsize=113912 CPUtime=109.45
/proc/29489/stat : 29489 (tts-4-0) R 29487 29489 28824 0 -1 4194304 28418 0 0 0 10934 11 0 0 25 0 1 0 231183229 116645888 28352 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134534049 0 0 4096 0 0 0 0 17 1 0 0
/proc/29489/statm: 28478 28352 66 113 0 28362 0
Current children cumulated CPU time (s) 109.45
Current children cumulated vsize (KiB) 113912

[startup+110.301 s]
/proc/loadavg: 0.98 1.02 0.96 2/65 29490
/proc/meminfo: memFree=1536040/2055920 swapFree=4182956/4192956
[pid=29489] ppid=29487 vsize=114148 CPUtime=110.25
/proc/29489/stat : 29489 (tts-4-0) R 29487 29489 28824 0 -1 4194304 28493 0 0 0 11014 11 0 0 25 0 1 0 231183229 116887552 28427 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134534128 0 0 4096 0 0 0 0 17 1 0 0
/proc/29489/statm: 28537 28427 66 113 0 28421 0
Current children cumulated CPU time (s) 110.25
Current children cumulated vsize (KiB) 114148

[startup+110.701 s]
/proc/loadavg: 0.98 1.02 0.96 2/65 29490
/proc/meminfo: memFree=1536040/2055920 swapFree=4182956/4192956
[pid=29489] ppid=29487 vsize=114380 CPUtime=110.65
/proc/29489/stat : 29489 (tts-4-0) R 29487 29489 28824 0 -1 4194304 28544 0 0 0 11054 11 0 0 25 0 1 0 231183229 117125120 28478 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134534130 0 0 4096 0 0 0 0 17 1 0 0
/proc/29489/statm: 28595 28478 66 113 0 28479 0
Current children cumulated CPU time (s) 110.65
Current children cumulated vsize (KiB) 114380

Child status: 20
Real time (s): 110.799
CPU time (s): 110.757
CPU user time (s): 110.623
CPU system time (s): 0.133979
CPU usage (%): 99.9624
Max. virtual memory (cumulated for all children) (KiB): 114380

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 110.623
system time used= 0.133979
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 28554
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= 133

runsolver used 0.094985 second user time and 0.212967 second system time

The end

Launcher Data (download as text)

Begin job on node67 on Thu Apr 26 01:45:37 UTC 2007

IDJOB= 370088
IDBENCH= 24590
IDSOLVER= 178
FILE ID= node67/370088-1177551937

PBS_JOBID= 4696619

Free space on /tmp= 66469 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/370088-1177551937/tts-4-0 /tmp/evaluation/370088-1177551937/instance-370088-1177551937.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node67/watcher-370088-1177551937 -o ROOT/results/node67/solver-370088-1177551937 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/370088-1177551937/tts-4-0 /tmp/evaluation/370088-1177551937/instance-370088-1177551937.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  922dc9f32281b0c4efd640c112a641b6

RANDOM SEED= 975067639

TIME LIMIT= 5000 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		: 3000.263
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		: 3000.263
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:       1650296 kB
Buffers:         26824 kB
Cached:         268868 kB
SwapCached:       3916 kB
Active:         202296 kB
Inactive:       140744 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1650296 kB
SwapTotal:     4192956 kB
SwapFree:      4182956 kB
Dirty:            1788 kB
Writeback:           0 kB
Mapped:          53196 kB
Slab:            48416 kB
Committed_AS:  1262292 kB
PageTables:       1564 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= 66469 MiB

End job on node67 on Thu Apr 26 01:47:28 UTC 2007