Trace number 311726

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 5.67114 5.67527

General information on the benchmark

Namerandom/2+p/p0.8/v2405/
unif2p-p0.8-v2405-c7479-S2108627398-03-UNSAT.cnf
MD5SUM2ccf1a5520f45941a05bd2d37ce612fe
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables2405
Number of clauses7478
Sum of the clauses size20939
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 21495
Number of clauses of size 35983
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

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 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node35/watcher-311726-1172575219 -o ROOT/results/node35/solver-311726-1172575219 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/311726-1172575219/mmisat /tmp/evaluation/311726-1172575219/instance-311726-1172575219.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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: 2.02 1.88 1.47 3/64 806
/proc/meminfo: memFree=1050488/2055920 swapFree=4180408/4192956
[pid=806] ppid=804 vsize=1440 CPUtime=0
/proc/806/stat : 806 (mmisat) R 804 806 31996 0 -1 4194304 225 0 0 0 0 0 0 0 18 0 1 0 251285659 1474560 208 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/806/statm: 360 208 81 214 0 142 0

[startup+0.106888 s]
/proc/loadavg: 2.02 1.88 1.47 3/64 806
/proc/meminfo: memFree=1050488/2055920 swapFree=4180408/4192956
[pid=806] ppid=804 vsize=3552 CPUtime=0.09
/proc/806/stat : 806 (mmisat) R 804 806 31996 0 -1 4194304 766 0 0 0 9 0 0 0 18 0 1 0 251285659 3637248 749 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/806/statm: 888 749 81 214 0 670 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3552

[startup+0.514969 s]
/proc/loadavg: 2.02 1.88 1.47 3/64 806
/proc/meminfo: memFree=1050488/2055920 swapFree=4180408/4192956
[pid=806] ppid=804 vsize=6324 CPUtime=0.5
/proc/806/stat : 806 (mmisat) R 804 806 31996 0 -1 4194304 1430 0 0 0 50 0 0 0 21 0 1 0 251285659 6475776 1413 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517187 0 0 4096 0 0 0 0 17 1 0 0
/proc/806/statm: 1581 1413 81 214 0 1363 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 6324

[startup+1.33513 s]
/proc/loadavg: 1.94 1.86 1.47 2/65 807
/proc/meminfo: memFree=1042736/2055920 swapFree=4180408/4192956
[pid=806] ppid=804 vsize=9360 CPUtime=1.33
/proc/806/stat : 806 (mmisat) R 804 806 31996 0 -1 4194304 2194 0 0 0 132 1 0 0 25 0 1 0 251285659 9584640 2177 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/806/statm: 2340 2177 81 214 0 2122 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 9360

[startup+2.97146 s]
/proc/loadavg: 1.94 1.86 1.47 2/65 807
/proc/meminfo: memFree=1039600/2055920 swapFree=4180408/4192956
[pid=806] ppid=804 vsize=12924 CPUtime=2.96
/proc/806/stat : 806 (mmisat) R 804 806 31996 0 -1 4194304 3103 0 0 0 295 1 0 0 25 0 1 0 251285659 13234176 3086 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/806/statm: 3231 3086 81 214 0 3013 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 12924

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

[startup+3.27752 s]
/proc/loadavg: 1.94 1.86 1.47 2/65 807
/proc/meminfo: memFree=1039600/2055920 swapFree=4180408/4192956
[pid=806] ppid=804 vsize=13452 CPUtime=3.26
/proc/806/stat : 806 (mmisat) R 804 806 31996 0 -1 4194304 3224 0 0 0 325 1 0 0 25 0 1 0 251285659 13774848 3207 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/806/statm: 3363 3208 81 214 0 3145 0
Current children cumulated CPU time (s) 3.26
Current children cumulated vsize (KiB) 13452

[startup+4.91985 s]
/proc/loadavg: 1.94 1.86 1.47 2/65 807
/proc/meminfo: memFree=1036144/2055920 swapFree=4180408/4192956
[pid=806] ppid=804 vsize=15072 CPUtime=4.91
/proc/806/stat : 806 (mmisat) R 804 806 31996 0 -1 4194304 3635 0 0 0 489 2 0 0 25 0 1 0 251285659 15433728 3618 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134523273 0 0 4096 0 0 0 0 17 1 0 0
/proc/806/statm: 3768 3618 84 214 0 3550 0
Current children cumulated CPU time (s) 4.91
Current children cumulated vsize (KiB) 15072

[startup+5.32793 s]
/proc/loadavg: 1.94 1.86 1.47 2/65 807
/proc/meminfo: memFree=1036144/2055920 swapFree=4180408/4192956
[pid=806] ppid=804 vsize=27952 CPUtime=5.31
/proc/806/stat : 806 (mmisat) R 804 806 31996 0 -1 4194304 10191 0 0 0 527 4 0 0 25 0 1 0 251285659 28622848 6853 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134523152 0 0 4096 0 0 0 0 17 1 0 0
/proc/806/statm: 6988 6853 85 214 0 6770 0
Current children cumulated CPU time (s) 5.31
Current children cumulated vsize (KiB) 27952

[startup+5.53197 s]
/proc/loadavg: 1.94 1.86 1.47 2/65 807
/proc/meminfo: memFree=1036144/2055920 swapFree=4180408/4192956
[pid=806] ppid=804 vsize=27952 CPUtime=5.52
/proc/806/stat : 806 (mmisat) R 804 806 31996 0 -1 4194304 10192 0 0 0 548 4 0 0 25 0 1 0 251285659 28622848 6854 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134518822 0 0 4096 0 0 0 0 17 1 0 0
/proc/806/statm: 6988 6854 86 214 0 6770 0
Current children cumulated CPU time (s) 5.52
Current children cumulated vsize (KiB) 27952

[startup+5.63399 s]
/proc/loadavg: 1.94 1.86 1.47 2/65 807
/proc/meminfo: memFree=1004272/2055920 swapFree=4180408/4192956
[pid=806] ppid=804 vsize=27952 CPUtime=5.63
/proc/806/stat : 806 (mmisat) R 804 806 31996 0 -1 4195840 10195 0 0 0 551 12 0 0 25 0 1 0 251285659 28622848 6854 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134551852 0 0 4096 0 0 0 0 17 1 0 0
/proc/806/statm: 6988 6854 86 214 0 6770 0
Current children cumulated CPU time (s) 5.63
Current children cumulated vsize (KiB) 27952

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 5.67527
CPU time (s): 5.67114
CPU user time (s): 5.51216
CPU system time (s): 0.158975
CPU usage (%): 99.9271
Max. virtual memory (cumulated for all children) (KiB): 41348

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.51216
system time used= 0.158975
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 10196
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= 21

runsolver used 0.007998 second user time and 0.016997 second system time

The end



Launcher Data (download as text)




Begin job on node35 on Tue Feb 27 11:20:19 UTC 2007

IDJOB= 311726
IDBENCH= 20322
IDSOLVER= 108
FILE ID= node35/311726-1172575219

PBS_JOBID= 3971889

Free space on /tmp= 66559 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v2405/unif2p-p0.8-v2405-c7479-S2108627398-03-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/311726-1172575219/mmisat /tmp/evaluation/311726-1172575219/instance-311726-1172575219.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node35/watcher-311726-1172575219 -o ROOT/results/node35/solver-311726-1172575219 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/311726-1172575219/mmisat /tmp/evaluation/311726-1172575219/instance-311726-1172575219.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  2ccf1a5520f45941a05bd2d37ce612fe

RANDOM SEED= 285389936

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node35.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:       1050960 kB
Buffers:         25496 kB
Cached:         922904 kB
SwapCached:       6932 kB
Active:          53096 kB
Inactive:       908908 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1050960 kB
SwapTotal:     4192956 kB
SwapFree:      4180408 kB
Dirty:            1200 kB
Writeback:           0 kB
Mapped:          15380 kB
Slab:            29052 kB
Committed_AS:   801708 kB
PageTables:       1412 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= 66532 MiB

End job on node35 on Tue Feb 27 11:20:25 UTC 2007