Trace number 312095

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 1.9497 1.95121

General information on the benchmark

Namerandom/2+p/p0.8/v1665/
unif2p-p0.8-v1665-c5178-S64317265-01-SAT.cnf
MD5SUM5d31125289b1c834540b6ea9a0288381
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.039993
Satisfiable
(Un)Satisfiability was proved
Number of variables1665
Number of clauses5177
Sum of the clauses size14496
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 21035
Number of clauses of size 34142
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/node61/watcher-312095-1172581884 -o ROOT/results/node61/solver-312095-1172581884 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/312095-1172581884/mmisat /tmp/evaluation/312095-1172581884/instance-312095-1172581884.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: 1.00 1.00 1.00 3/64 12152
/proc/meminfo: memFree=1812832/2055920 swapFree=4180412/4192956
[pid=12152] ppid=12150 vsize=1308 CPUtime=0
/proc/12152/stat : 12152 (mmisat) R 12150 12152 10601 0 -1 4194304 195 0 0 0 0 0 0 0 18 0 1 0 278145321 1339392 178 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/12152/statm: 327 178 81 214 0 109 0

[startup+0.107656 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 12152
/proc/meminfo: memFree=1812832/2055920 swapFree=4180412/4192956
[pid=12152] ppid=12150 vsize=2892 CPUtime=0.1
/proc/12152/stat : 12152 (mmisat) R 12150 12152 10601 0 -1 4194304 579 0 0 0 10 0 0 0 18 0 1 0 278145321 2961408 562 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/12152/statm: 723 562 81 214 0 505 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2892

[startup+0.515683 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 12152
/proc/meminfo: memFree=1812832/2055920 swapFree=4180412/4192956
[pid=12152] ppid=12150 vsize=5004 CPUtime=0.5
/proc/12152/stat : 12152 (mmisat) R 12150 12152 10601 0 -1 4194304 1102 0 0 0 50 0 0 0 21 0 1 0 278145321 5124096 1085 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/12152/statm: 1251 1085 81 214 0 1033 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 5004

[startup+1.33576 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 12153
/proc/meminfo: memFree=1806936/2055920 swapFree=4180412/4192956
[pid=12152] ppid=12150 vsize=7380 CPUtime=1.32
/proc/12152/stat : 12152 (mmisat) R 12150 12152 10601 0 -1 4194304 1702 0 0 0 132 0 0 0 25 0 1 0 278145321 7557120 1685 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517205 0 0 4096 0 0 0 0 17 1 0 0
/proc/12152/statm: 1845 1685 81 214 0 1627 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 7380

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

[startup+1.64179 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 12153
/proc/meminfo: memFree=1806936/2055920 swapFree=4180412/4192956
[pid=12152] ppid=12150 vsize=7944 CPUtime=1.63
/proc/12152/stat : 12152 (mmisat) R 12150 12152 10601 0 -1 4194304 1844 0 0 0 163 0 0 0 25 0 1 0 278145321 8134656 1827 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134523222 0 0 4096 0 0 0 0 17 1 0 0
/proc/12152/statm: 1986 1827 84 214 0 1768 0
Current children cumulated CPU time (s) 1.63
Current children cumulated vsize (KiB) 7944

[startup+1.84581 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 12153
/proc/meminfo: memFree=1806936/2055920 swapFree=4180412/4192956
[pid=12152] ppid=12150 vsize=14392 CPUtime=1.84
/proc/12152/stat : 12152 (mmisat) R 12150 12152 10601 0 -1 4194304 5109 0 0 0 182 2 0 0 25 0 1 0 278145321 14737408 3462 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134522790 0 0 4096 0 0 0 0 17 1 0 0
/proc/12152/statm: 3598 3462 85 214 0 3380 0
Current children cumulated CPU time (s) 1.84
Current children cumulated vsize (KiB) 14392

[startup+1.94782 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 12153
/proc/meminfo: memFree=1806936/2055920 swapFree=4180412/4192956
[pid=12152] ppid=12150 vsize=14392 CPUtime=1.94
/proc/12152/stat : 12152 (mmisat) R 12150 12152 10601 0 -1 4195840 5115 0 0 0 187 7 0 0 25 0 1 0 278145321 14737408 3463 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134551852 0 0 4096 0 0 0 0 17 1 0 0
/proc/12152/statm: 3598 3463 86 214 0 3380 0
Current children cumulated CPU time (s) 1.94
Current children cumulated vsize (KiB) 14392

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 1.95121
CPU time (s): 1.9497
CPU user time (s): 1.87371
CPU system time (s): 0.075988
CPU usage (%): 99.9225
Max. virtual memory (cumulated for all children) (KiB): 14392

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.87371
system time used= 0.075988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5115
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= 5

runsolver used 0.003999 second user time and 0.007998 second system time

The end



Launcher Data (download as text)




Begin job on node61 on Tue Feb 27 13:11:24 UTC 2007

IDJOB= 312095
IDBENCH= 20332
IDSOLVER= 108
FILE ID= node61/312095-1172581884

PBS_JOBID= 3971910

Free space on /tmp= 66557 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1665/unif2p-p0.8-v1665-c5178-S64317265-01-SAT.cnf
COMMAND LINE= /tmp/evaluation/312095-1172581884/mmisat /tmp/evaluation/312095-1172581884/instance-312095-1172581884.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node61/watcher-312095-1172581884 -o ROOT/results/node61/solver-312095-1172581884 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/312095-1172581884/mmisat /tmp/evaluation/312095-1172581884/instance-312095-1172581884.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  5d31125289b1c834540b6ea9a0288381

RANDOM SEED= 952363897

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node61.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		: 3000.216
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		: 3000.216
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:       1813240 kB
Buffers:         33784 kB
Cached:         158064 kB
SwapCached:       6848 kB
Active:         101176 kB
Inactive:       103616 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1813240 kB
SwapTotal:     4192956 kB
SwapFree:      4180412 kB
Dirty:            1160 kB
Writeback:           0 kB
Mapped:          15584 kB
Slab:            23996 kB
Committed_AS:   756496 kB
PageTables:       1388 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= 66544 MiB

End job on node61 on Tue Feb 27 13:11:26 UTC 2007