Trace number 338108

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
Mmisat 2007-02-08Signal 17.6723 17.6791

General information on the benchmark

Namecrafted/Difficult/contest05/QG/
QG6-gensys-brn007.sat05-2684.reshuffled-07.cnf
MD5SUM749c079607e9e37c206eeb8bd5b8bfaf
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark71.1292
Satisfiable
(Un)Satisfiability was proved
Number of variables1477
Number of clauses7809
Sum of the clauses size65959
Maximum clause length16
Minimum clause length1
Number of clauses of size 133
Number of clauses of size 2289
Number of clauses of size 31172
Number of clauses of size 4124
Number of clauses of size 5894
Number of clauses of size over 55297

Solver Data (download as text)



Verifier Data (download as text)




ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer: 



Watcher Data (download as text)




runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node42/watcher-338108-1173680465 -o ROOT/results/node42/solver-338108-1173680465 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/338108-1173680465/mmisat /tmp/evaluation/338108-1173680465/instance-338108-1173680465.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 0.98 0.99 2/64 10360
/proc/meminfo: memFree=1821216/2055920 swapFree=4182364/4192956
[pid=10360] ppid=10358 vsize=1308 CPUtime=0
/proc/10360/stat : 10360 (mmisat) R 10358 10360 8570 0 -1 4194304 175 0 0 0 0 0 0 0 18 0 1 0 93999907 1339392 158 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134687843 0 0 4096 0 0 0 0 17 1 0 0
/proc/10360/statm: 327 158 81 214 0 109 0

[startup+0.061376 s]
/proc/loadavg: 0.92 0.98 0.99 2/64 10360
/proc/meminfo: memFree=1821216/2055920 swapFree=4182364/4192956
[pid=10360] ppid=10358 vsize=1836 CPUtime=0.05
/proc/10360/stat : 10360 (mmisat) R 10358 10360 8570 0 -1 4194304 311 0 0 0 5 0 0 0 18 0 1 0 93999907 1880064 294 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/10360/statm: 459 294 81 214 0 241 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1836

[startup+0.101383 s]
/proc/loadavg: 0.92 0.98 0.99 2/64 10360
/proc/meminfo: memFree=1821216/2055920 swapFree=4182364/4192956
[pid=10360] ppid=10358 vsize=1968 CPUtime=0.09
/proc/10360/stat : 10360 (mmisat) R 10358 10360 8570 0 -1 4194304 368 0 0 0 9 0 0 0 18 0 1 0 93999907 2015232 351 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/10360/statm: 492 351 81 214 0 274 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1968

[startup+0.30142 s]
/proc/loadavg: 0.92 0.98 0.99 2/64 10360
/proc/meminfo: memFree=1821216/2055920 swapFree=4182364/4192956
[pid=10360] ppid=10358 vsize=2760 CPUtime=0.29
/proc/10360/stat : 10360 (mmisat) R 10358 10360 8570 0 -1 4194304 556 0 0 0 29 0 0 0 19 0 1 0 93999907 2826240 539 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/10360/statm: 690 539 81 214 0 472 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2760

[startup+0.701497 s]
/proc/loadavg: 0.92 0.98 0.99 2/64 10360
/proc/meminfo: memFree=1821216/2055920 swapFree=4182364/4192956
[pid=10360] ppid=10358 vsize=3684 CPUtime=0.69
/proc/10360/stat : 10360 (mmisat) R 10358 10360 8570 0 -1 4194304 792 0 0 0 69 0 0 0 23 0 1 0 93999907 3772416 775 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/10360/statm: 921 775 81 214 0 703 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3684

[startup+1.50165 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 10361
/proc/meminfo: memFree=1817816/2055920 swapFree=4182364/4192956
[pid=10360] ppid=10358 vsize=5004 CPUtime=1.49
/proc/10360/stat : 10360 (mmisat) R 10358 10360 8570 0 -1 4194304 1108 0 0 0 149 0 0 0 25 0 1 0 93999907 5124096 1091 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/10360/statm: 1251 1091 81 214 0 1033 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5004

[startup+3.10195 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 10361
/proc/meminfo: memFree=1816216/2055920 swapFree=4182364/4192956
[pid=10360] ppid=10358 vsize=6720 CPUtime=3.09
/proc/10360/stat : 10360 (mmisat) R 10358 10360 8570 0 -1 4194304 1536 0 0 0 309 0 0 0 25 0 1 0 93999907 6881280 1519 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/10360/statm: 1680 1519 81 214 0 1462 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6720

[startup+6.30156 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 10361
/proc/meminfo: memFree=1813528/2055920 swapFree=4182364/4192956
[pid=10360] ppid=10358 vsize=8832 CPUtime=6.29
/proc/10360/stat : 10360 (mmisat) R 10358 10360 8570 0 -1 4194304 2086 0 0 0 628 1 0 0 25 0 1 0 93999907 9043968 2069 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/10360/statm: 2208 2069 81 214 0 1990 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 8832

[startup+12.7018 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 10361
/proc/meminfo: memFree=1811480/2055920 swapFree=4182364/4192956
[pid=10360] ppid=10358 vsize=10320 CPUtime=12.69
/proc/10360/stat : 10360 (mmisat) R 10358 10360 8570 0 -1 4194304 2449 0 0 0 1268 1 0 0 25 0 1 0 93999907 10567680 2432 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134518855 0 0 4096 0 0 0 0 17 1 0 0
/proc/10360/statm: 2580 2432 84 214 0 2362 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 10320

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

[startup+15.9014 s]
/proc/loadavg: 0.94 0.98 0.99 2/65 10361
/proc/meminfo: memFree=1811480/2055920 swapFree=4182364/4192956
[pid=10360] ppid=10358 vsize=10320 CPUtime=15.89
/proc/10360/stat : 10360 (mmisat) R 10358 10360 8570 0 -1 4194304 2449 0 0 0 1588 1 0 0 25 0 1 0 93999907 10567680 2432 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134518979 0 0 4096 0 0 0 0 17 1 0 0
/proc/10360/statm: 2580 2432 84 214 0 2362 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 10320

[startup+16.7015 s]
/proc/loadavg: 0.94 0.98 0.99 2/65 10361
/proc/meminfo: memFree=1811480/2055920 swapFree=4182364/4192956
[pid=10360] ppid=10358 vsize=10320 CPUtime=16.69
/proc/10360/stat : 10360 (mmisat) R 10358 10360 8570 0 -1 4194304 2449 0 0 0 1668 1 0 0 25 0 1 0 93999907 10567680 2432 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134519043 0 0 4096 0 0 0 0 17 1 0 0
/proc/10360/statm: 2580 2432 84 214 0 2362 0
Current children cumulated CPU time (s) 16.69
Current children cumulated vsize (KiB) 10320

[startup+17.1016 s]
/proc/loadavg: 0.94 0.98 0.99 2/65 10361
/proc/meminfo: memFree=1811480/2055920 swapFree=4182364/4192956
[pid=10360] ppid=10358 vsize=10320 CPUtime=17.09
/proc/10360/stat : 10360 (mmisat) R 10358 10360 8570 0 -1 4194304 2449 0 0 0 1708 1 0 0 25 0 1 0 93999907 10567680 2432 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134519061 0 0 4096 0 0 0 0 17 1 0 0
/proc/10360/statm: 2580 2432 84 214 0 2362 0
Current children cumulated CPU time (s) 17.09
Current children cumulated vsize (KiB) 10320

[startup+17.5017 s]
/proc/loadavg: 0.94 0.98 0.99 2/65 10361
/proc/meminfo: memFree=1794200/2055920 swapFree=4182364/4192956
[pid=10360] ppid=10358 vsize=27620 CPUtime=17.49
/proc/10360/stat : 10360 (mmisat) R 10358 10360 8570 0 -1 4194304 6769 0 0 0 1746 3 0 0 25 0 1 0 93999907 28282880 6752 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134518963 0 0 4096 0 0 0 0 17 1 0 0
/proc/10360/statm: 6905 6752 85 214 0 6687 0
Current children cumulated CPU time (s) 17.49
Current children cumulated vsize (KiB) 27620

[startup+17.6057 s]
/proc/loadavg: 0.94 0.98 0.99 2/65 10361
/proc/meminfo: memFree=1794200/2055920 swapFree=4182364/4192956
[pid=10360] ppid=10358 vsize=18832 CPUtime=17.59
/proc/10360/stat : 10360 (mmisat) R 10358 10360 8570 0 -1 4195840 6778 0 0 0 1756 3 0 0 25 0 1 0 93999907 19283968 4573 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134551852 0 0 4096 0 0 0 0 17 1 0 0
/proc/10360/statm: 4708 4573 86 214 0 4490 0
Current children cumulated CPU time (s) 17.59
Current children cumulated vsize (KiB) 18832

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 17.6791
CPU time (s): 17.6723
CPU user time (s): 17.5673
CPU system time (s): 0.104984
CPU usage (%): 99.9617
Max. virtual memory (cumulated for all children) (KiB): 27620

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 17.5673
system time used= 0.104984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6780
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= 6
involuntary context switches= 17

runsolver used 0.013997 second user time and 0.043993 second system time

The end



Launcher Data (download as text)




Begin job on node42 on Mon Mar 12 06:21:05 UTC 2007

IDJOB= 338108
IDBENCH= 24715
IDSOLVER= 108
FILE ID= node42/338108-1173680465

PBS_JOBID= 4101702

Free space on /tmp= 66558 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/crafted/Difficult/contest05/QG/QG6-gensys-brn007.sat05-2684.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/338108-1173680465/mmisat /tmp/evaluation/338108-1173680465/instance-338108-1173680465.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node42/watcher-338108-1173680465 -o ROOT/results/node42/solver-338108-1173680465 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/338108-1173680465/mmisat /tmp/evaluation/338108-1173680465/instance-338108-1173680465.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  749c079607e9e37c206eeb8bd5b8bfaf

RANDOM SEED= 197862664

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node42.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:       1821624 kB
Buffers:         30260 kB
Cached:         154980 kB
SwapCached:       4820 kB
Active:          79280 kB
Inactive:       117580 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1821624 kB
SwapTotal:     4192956 kB
SwapFree:      4182364 kB
Dirty:            1408 kB
Writeback:           0 kB
Mapped:          15496 kB
Slab:            23436 kB
Committed_AS:   147676 kB
PageTables:       1408 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= 66540 MiB

End job on node42 on Mon Mar 12 06:21:23 UTC 2007