Trace number 312054

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 2.33065 2.33074

General information on the benchmark

Namerandom/2+p/p0.8/v1665/
unif2p-p0.8-v1665-c5178-S883553387-12-UNSAT.cnf
MD5SUM2976853275fc06eec446787735cebe47
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark123.8
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/node29/watcher-312054-1172581090 -o ROOT/results/node29/solver-312054-1172581090 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/312054-1172581090/mmisat /tmp/evaluation/312054-1172581090/instance-312054-1172581090.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: 0.92 0.98 0.99 3/77 24049
/proc/meminfo: memFree=1815648/2055920 swapFree=4143368/4192956
[pid=24049] ppid=24047 vsize=1308 CPUtime=0
/proc/24049/stat : 24049 (mmisat) R 24047 24049 23045 0 -1 4194304 198 0 0 0 0 0 0 0 18 0 1 0 251873285 1339392 181 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/24049/statm: 327 181 81 214 0 109 0

[startup+0.107281 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 24049
/proc/meminfo: memFree=1815648/2055920 swapFree=4143368/4192956
[pid=24049] ppid=24047 vsize=2892 CPUtime=0.1
/proc/24049/stat : 24049 (mmisat) R 24047 24049 23045 0 -1 4194304 580 0 0 0 10 0 0 0 18 0 1 0 251873285 2961408 563 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/24049/statm: 723 563 81 214 0 505 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2892

[startup+0.515306 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 24049
/proc/meminfo: memFree=1815648/2055920 swapFree=4143368/4192956
[pid=24049] ppid=24047 vsize=5004 CPUtime=0.51
/proc/24049/stat : 24049 (mmisat) R 24047 24049 23045 0 -1 4194304 1106 0 0 0 51 0 0 0 21 0 1 0 251873285 5124096 1089 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/24049/statm: 1251 1089 81 214 0 1033 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 5004

[startup+1.33836 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 24050
/proc/meminfo: memFree=1809752/2055920 swapFree=4143368/4192956
[pid=24049] ppid=24047 vsize=7380 CPUtime=1.33
/proc/24049/stat : 24049 (mmisat) R 24047 24049 23045 0 -1 4194304 1704 0 0 0 133 0 0 0 25 0 1 0 251873285 7557120 1687 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/24049/statm: 1845 1687 81 214 0 1627 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 7380

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

[startup+1.64739 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 24050
/proc/meminfo: memFree=1809752/2055920 swapFree=4143368/4192956
[pid=24049] ppid=24047 vsize=7944 CPUtime=1.64
/proc/24049/stat : 24049 (mmisat) R 24047 24049 23045 0 -1 4194304 1844 0 0 0 164 0 0 0 25 0 1 0 251873285 8134656 1827 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134518390 0 0 4096 0 0 0 0 17 1 0 0
/proc/24049/statm: 1986 1827 84 214 0 1768 0
Current children cumulated CPU time (s) 1.64
Current children cumulated vsize (KiB) 7944

[startup+2.0554 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 24050
/proc/meminfo: memFree=1809752/2055920 swapFree=4143368/4192956
[pid=24049] ppid=24047 vsize=21020 CPUtime=2.05
/proc/24049/stat : 24049 (mmisat) R 24047 24049 23045 0 -1 4194304 5105 0 0 0 204 1 0 0 25 0 1 0 251873285 21524480 5088 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134519058 0 0 4096 0 0 0 0 17 1 0 0
/proc/24049/statm: 5255 5088 85 214 0 5037 0
Current children cumulated CPU time (s) 2.05
Current children cumulated vsize (KiB) 21020

[startup+2.25941 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 24050
/proc/meminfo: memFree=1801816/2055920 swapFree=4143368/4192956
[pid=24049] ppid=24047 vsize=14400 CPUtime=2.25
/proc/24049/stat : 24049 (mmisat) R 24047 24049 23045 0 -1 4194304 5111 0 0 0 224 1 0 0 25 0 1 0 251873285 14745600 3465 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134523222 0 0 4096 0 0 0 0 17 1 0 0
/proc/24049/statm: 3600 3465 86 214 0 3382 0
Current children cumulated CPU time (s) 2.25
Current children cumulated vsize (KiB) 14400

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 2.33074
CPU time (s): 2.33065
CPU user time (s): 2.25966
CPU system time (s): 0.070989
CPU usage (%): 99.9961
Max. virtual memory (cumulated for all children) (KiB): 21020

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.25966
system time used= 0.070989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5116
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= 1

runsolver used 0.001999 second user time and 0.013997 second system time

The end



Launcher Data (download as text)




Begin job on node29 on Tue Feb 27 12:58:10 UTC 2007

IDJOB= 312054
IDBENCH= 20331
IDSOLVER= 108
FILE ID= node29/312054-1172581090

PBS_JOBID= 3971903

Free space on /tmp= 66563 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1665/unif2p-p0.8-v1665-c5178-S883553387-12-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/312054-1172581090/mmisat /tmp/evaluation/312054-1172581090/instance-312054-1172581090.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node29/watcher-312054-1172581090 -o ROOT/results/node29/solver-312054-1172581090 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/312054-1172581090/mmisat /tmp/evaluation/312054-1172581090/instance-312054-1172581090.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  2976853275fc06eec446787735cebe47

RANDOM SEED= 963395714

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node29.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		: 3000.209
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	: 5931.00
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		: 3000.209
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:       1816120 kB
Buffers:         37108 kB
Cached:         133884 kB
SwapCached:      17776 kB
Active:         132708 kB
Inactive:        67284 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1816120 kB
SwapTotal:     4192956 kB
SwapFree:      4143368 kB
Dirty:            1188 kB
Writeback:           0 kB
Mapped:          30312 kB
Slab:            25284 kB
Committed_AS:   738276 kB
PageTables:       1864 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= 66550 MiB

End job on node29 on Tue Feb 27 12:58:13 UTC 2007