Trace number 316174

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 3.9684 3.96971

General information on the benchmark

Namecrafted/spence/
medium/s69-100.cnf
MD5SUMb1f1c259b38436e8c9f1623770b4a93b
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark3.9684
Satisfiable
(Un)Satisfiability was proved
Number of variables69
Number of clauses148
Sum of the clauses size444
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3148
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

3.89/3.96	c Command: /tmp/evaluation/316174-1172665173/tts-4-0 /tmp/evaluation/316174-1172665173/instance-316174-1172665173.cnf 
3.89/3.96	c CPU limit set to 1200.000000
3.89/3.96	c Variables = 69
3.89/3.96	c Clauses = 148
3.89/3.96	c Literals = 444
3.89/3.96	c Reduced size:
3.89/3.96	c Variables = 69
3.89/3.96	c Clauses = 148
3.89/3.96	c Literals = 444
3.89/3.96	c Independent sub-problems = 1
3.89/3.96	c Sub-problem with 69 variables
3.89/3.96	c using permutation method 3
3.89/3.96	c Ordering finished 0.170 seconds
3.89/3.96	c mapped 0.170 seconds
3.89/3.96	c permuted 0.170 seconds
3.89/3.96	c init finished 0.170 seconds
3.89/3.96	c tree built 0.170 seconds
3.89/3.96	c Partial assignments = 224383, improvements = 36839
3.89/3.96	s UNSATISFIABLE
3.89/3.96	c Time = 3.96 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/node63/watcher-316174-1172665173 -o ROOT/results/node63/solver-316174-1172665173 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/316174-1172665173/tts-4-0 /tmp/evaluation/316174-1172665173/instance-316174-1172665173.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 0.95 0.95 3/64 31331
/proc/meminfo: memFree=1846968/2055920 swapFree=4183232/4192956
[pid=31331] ppid=31329 vsize=796 CPUtime=0
/proc/31331/stat : 31331 (tts-4-0) R 31329 31331 30812 0 -1 4194304 99 0 0 0 0 0 0 0 18 0 1 0 286474652 815104 84 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134537036 0 0 4096 0 0 0 0 17 1 0 0
/proc/31331/statm: 199 84 62 113 0 83 0

[startup+0.0152171 s]
/proc/loadavg: 0.92 0.95 0.95 3/64 31331
/proc/meminfo: memFree=1846968/2055920 swapFree=4183232/4192956
[pid=31331] ppid=31329 vsize=796 CPUtime=0.01
/proc/31331/stat : 31331 (tts-4-0) R 31329 31331 30812 0 -1 4194304 99 0 0 0 1 0 0 0 18 0 1 0 286474652 815104 84 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134555699 0 0 4096 0 0 0 0 17 1 0 0
/proc/31331/statm: 199 84 62 113 0 83 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 796

[startup+0.101226 s]
/proc/loadavg: 0.92 0.95 0.95 3/64 31331
/proc/meminfo: memFree=1846968/2055920 swapFree=4183232/4192956
[pid=31331] ppid=31329 vsize=796 CPUtime=0.1
/proc/31331/stat : 31331 (tts-4-0) R 31329 31331 30812 0 -1 4194304 99 0 0 0 10 0 0 0 18 0 1 0 286474652 815104 84 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134555678 0 0 4096 0 0 0 0 17 1 0 0
/proc/31331/statm: 199 84 62 113 0 83 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 796

[startup+0.301247 s]
/proc/loadavg: 0.92 0.95 0.95 3/64 31331
/proc/meminfo: memFree=1846968/2055920 swapFree=4183232/4192956
[pid=31331] ppid=31329 vsize=932 CPUtime=0.29
/proc/31331/stat : 31331 (tts-4-0) R 31329 31331 30812 0 -1 4194304 185 0 0 0 29 0 0 0 19 0 1 0 286474652 954368 170 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134535187 0 0 4096 0 0 0 0 17 1 0 0
/proc/31331/statm: 233 170 67 113 0 117 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 932

[startup+0.701289 s]
/proc/loadavg: 0.92 0.95 0.95 3/64 31331
/proc/meminfo: memFree=1846968/2055920 swapFree=4183232/4192956
[pid=31331] ppid=31329 vsize=1404 CPUtime=0.69
/proc/31331/stat : 31331 (tts-4-0) R 31329 31331 30812 0 -1 4194304 286 0 0 0 69 0 0 0 23 0 1 0 286474652 1437696 271 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134534114 0 0 4096 0 0 0 0 17 1 0 0
/proc/31331/statm: 351 271 67 113 0 235 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1404

[startup+1.50137 s]
/proc/loadavg: 0.92 0.95 0.95 2/65 31332
/proc/meminfo: memFree=1845936/2055920 swapFree=4183232/4192956
[pid=31331] ppid=31329 vsize=2108 CPUtime=1.49
/proc/31331/stat : 31331 (tts-4-0) R 31329 31331 30812 0 -1 4194304 434 0 0 0 149 0 0 0 25 0 1 0 286474652 2158592 419 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134534114 0 0 4096 0 0 0 0 17 1 0 0
/proc/31331/statm: 527 419 67 113 0 411 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2108

[startup+3.10154 s]
/proc/loadavg: 0.93 0.95 0.95 2/65 31332
/proc/meminfo: memFree=1845168/2055920 swapFree=4183232/4192956
[pid=31331] ppid=31329 vsize=2808 CPUtime=3.09
/proc/31331/stat : 31331 (tts-4-0) R 31329 31331 30812 0 -1 4194304 634 0 0 0 309 0 0 0 25 0 1 0 286474652 2875392 619 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134535181 0 0 4096 0 0 0 0 17 1 0 0
/proc/31331/statm: 702 619 67 113 0 586 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2808

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

[startup+3.50159 s]
/proc/loadavg: 0.93 0.95 0.95 2/65 31332
/proc/meminfo: memFree=1844592/2055920 swapFree=4183232/4192956
[pid=31331] ppid=31329 vsize=3044 CPUtime=3.49
/proc/31331/stat : 31331 (tts-4-0) R 31329 31331 30812 0 -1 4194304 670 0 0 0 349 0 0 0 25 0 1 0 286474652 3117056 655 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134534095 0 0 4096 0 0 0 0 17 1 0 0
/proc/31331/statm: 761 655 67 113 0 645 0
Current children cumulated CPU time (s) 3.49
Current children cumulated vsize (KiB) 3044

[startup+3.90163 s]
/proc/loadavg: 0.93 0.95 0.95 2/65 31332
/proc/meminfo: memFree=1844592/2055920 swapFree=4183232/4192956
[pid=31331] ppid=31329 vsize=3044 CPUtime=3.89
/proc/31331/stat : 31331 (tts-4-0) R 31329 31331 30812 0 -1 4194304 715 0 0 0 389 0 0 0 25 0 1 0 286474652 3117056 700 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134534154 0 0 4096 0 0 0 0 17 1 0 0
/proc/31331/statm: 761 700 67 113 0 645 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 3044

Child status: 20
Real time (s): 3.96971
CPU time (s): 3.9684
CPU user time (s): 3.9614
CPU system time (s): 0.006998
CPU usage (%): 99.967
Max. virtual memory (cumulated for all children) (KiB): 3044

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.9614
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 723
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= 3

runsolver used 0.010998 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node63 on Wed Feb 28 12:19:33 UTC 2007

IDJOB= 316174
IDBENCH= 20435
IDSOLVER= 98
FILE ID= node63/316174-1172665173

PBS_JOBID= 3981213

Free space on /tmp= 66539 MiB

SOLVER NAME= TTS 4.0
BENCH NAME= HOME/pub/bench/SAT07/crafted/spence/medium/s69-100.cnf
COMMAND LINE= /tmp/evaluation/316174-1172665173/tts-4-0 /tmp/evaluation/316174-1172665173/instance-316174-1172665173.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node63/watcher-316174-1172665173 -o ROOT/results/node63/solver-316174-1172665173 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/316174-1172665173/tts-4-0 /tmp/evaluation/316174-1172665173/instance-316174-1172665173.cnf            

META MD5SUM SOLVER= 73a7a27d0c2e86f9b1191433fde766ff
MD5SUM BENCH=  b1f1c259b38436e8c9f1623770b4a93b

RANDOM SEED= 99371789

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node63.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		: 3000.214
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		: 3000.214
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:       1847440 kB
Buffers:          5452 kB
Cached:         150048 kB
SwapCached:       3484 kB
Active:          39368 kB
Inactive:       130420 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1847440 kB
SwapTotal:     4192956 kB
SwapFree:      4183232 kB
Dirty:             616 kB
Writeback:           0 kB
Mapped:          20400 kB
Slab:            24716 kB
Committed_AS:   717400 kB
PageTables:       1472 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= 66539 MiB

End job on node63 on Wed Feb 28 12:19:37 UTC 2007