Trace number 308118

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 11.4573 11.4621

General information on the benchmark

Namerandom/2+p/p0.7/v3500/
unif2p-p0.7-v3500-c9345-S1455331099-09-SAT.cnf
MD5SUMc88c589a7c8f9b32a4b7d3cd9d764f32
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark5.16121
Satisfiable
(Un)Satisfiability was proved
Number of variables3494
Number of clauses9344
Sum of the clauses size25229
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22803
Number of clauses of size 36541
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/node70/watcher-308118-1172516052 -o ROOT/results/node70/solver-308118-1172516052 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/308118-1172516052/mmisat /tmp/evaluation/308118-1172516052/instance-308118-1172516052.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: 1.78 1.79 1.78 3/64 9713
/proc/meminfo: memFree=1957752/2055920 swapFree=4183020/4192956
[pid=9713] ppid=9711 vsize=1572 CPUtime=0
/proc/9713/stat : 9713 (mmisat) R 9711 9713 9566 0 -1 4194304 249 0 0 0 0 0 0 0 18 0 1 0 234405865 1609728 232 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/9713/statm: 393 233 81 214 0 175 0

[startup+0.107266 s]
/proc/loadavg: 1.78 1.79 1.78 3/64 9713
/proc/meminfo: memFree=1957752/2055920 swapFree=4183020/4192956
[pid=9713] ppid=9711 vsize=4476 CPUtime=0.1
/proc/9713/stat : 9713 (mmisat) R 9711 9713 9566 0 -1 4194304 966 0 0 0 10 0 0 0 18 0 1 0 234405865 4583424 949 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/9713/statm: 1119 949 81 214 0 901 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 4476

[startup+0.515339 s]
/proc/loadavg: 1.78 1.79 1.78 3/64 9713
/proc/meminfo: memFree=1957752/2055920 swapFree=4183020/4192956
[pid=9713] ppid=9711 vsize=8700 CPUtime=0.5
/proc/9713/stat : 9713 (mmisat) R 9711 9713 9566 0 -1 4194304 2037 0 0 0 50 0 0 0 21 0 1 0 234405865 8908800 2020 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/9713/statm: 2175 2020 81 214 0 1957 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 8700

[startup+1.33849 s]
/proc/loadavg: 1.78 1.79 1.78 2/65 9714
/proc/meminfo: memFree=1946928/2055920 swapFree=4183020/4192956
[pid=9713] ppid=9711 vsize=12528 CPUtime=1.33
/proc/9713/stat : 9713 (mmisat) R 9711 9713 9566 0 -1 4194304 2986 0 0 0 132 1 0 0 25 0 1 0 234405865 12828672 2969 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517196 0 0 4096 0 0 0 0 17 1 0 0
/proc/9713/statm: 3132 2969 81 214 0 2914 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 12528

[startup+2.97478 s]
/proc/loadavg: 1.78 1.79 1.78 2/65 9714
/proc/meminfo: memFree=1942896/2055920 swapFree=4183020/4192956
[pid=9713] ppid=9711 vsize=17544 CPUtime=2.96
/proc/9713/stat : 9713 (mmisat) R 9711 9713 9566 0 -1 4194304 4233 0 0 0 295 1 0 0 25 0 1 0 234405865 17965056 4216 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/9713/statm: 4386 4216 81 214 0 4168 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 17544

[startup+6.25438 s]
/proc/loadavg: 1.72 1.78 1.77 2/65 9714
/proc/meminfo: memFree=1936112/2055920 swapFree=4183020/4192956
[pid=9713] ppid=9711 vsize=23088 CPUtime=6.24
/proc/9713/stat : 9713 (mmisat) R 9711 9713 9566 0 -1 4194304 5633 0 0 0 622 2 0 0 25 0 1 0 234405865 23642112 5616 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/9713/statm: 5772 5616 81 214 0 5554 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 23088

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

[startup+6.56043 s]
/proc/loadavg: 1.72 1.78 1.77 2/65 9714
/proc/meminfo: memFree=1936112/2055920 swapFree=4183020/4192956
[pid=9713] ppid=9711 vsize=23484 CPUtime=6.55
/proc/9713/stat : 9713 (mmisat) R 9711 9713 9566 0 -1 4194304 5724 0 0 0 652 3 0 0 25 0 1 0 234405865 24047616 5707 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/9713/statm: 5871 5707 81 214 0 5653 0
Current children cumulated CPU time (s) 6.55
Current children cumulated vsize (KiB) 23484

[startup+9.83702 s]
/proc/loadavg: 1.66 1.77 1.77 2/65 9714
/proc/meminfo: memFree=1932664/2055920 swapFree=4183020/4192956
[pid=9713] ppid=9711 vsize=26028 CPUtime=9.82
/proc/9713/stat : 9713 (mmisat) R 9711 9713 9566 0 -1 4194304 6375 0 0 0 979 3 0 0 25 0 1 0 234405865 26652672 6358 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134523222 0 0 4096 0 0 0 0 17 1 0 0
/proc/9713/statm: 6507 6358 84 214 0 6289 0
Current children cumulated CPU time (s) 9.82
Current children cumulated vsize (KiB) 26028

[startup+10.6572 s]
/proc/loadavg: 1.66 1.77 1.77 2/65 9714
/proc/meminfo: memFree=1932408/2055920 swapFree=4183020/4192956
[pid=9713] ppid=9711 vsize=47024 CPUtime=10.64
/proc/9713/stat : 9713 (mmisat) R 9711 9713 9566 0 -1 4194304 11633 0 0 0 1059 5 0 0 25 0 1 0 234405865 48152576 11616 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134518994 0 0 4096 0 0 0 0 17 1 0 0
/proc/9713/statm: 11756 11616 85 214 0 11538 0
Current children cumulated CPU time (s) 10.64
Current children cumulated vsize (KiB) 47024

[startup+11.0682 s]
/proc/loadavg: 1.66 1.77 1.77 2/65 9714
/proc/meminfo: memFree=1932408/2055920 swapFree=4183020/4192956
[pid=9713] ppid=9711 vsize=47148 CPUtime=11.06
/proc/9713/stat : 9713 (mmisat) R 9711 9713 9566 0 -1 4194304 17394 0 0 0 1098 8 0 0 25 0 1 0 234405865 48279552 11654 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134523273 0 0 4096 0 0 0 0 17 1 0 0
/proc/9713/statm: 11787 11654 86 214 0 11569 0
Current children cumulated CPU time (s) 11.06
Current children cumulated vsize (KiB) 47148

[startup+11.2723 s]
/proc/loadavg: 1.66 1.77 1.77 2/65 9714
/proc/meminfo: memFree=1910912/2055920 swapFree=4183020/4192956
[pid=9713] ppid=9711 vsize=47148 CPUtime=11.26
/proc/9713/stat : 9713 (mmisat) R 9711 9713 9566 0 -1 4195840 17397 0 0 0 1118 8 0 0 25 0 1 0 234405865 48279552 11654 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134551852 0 0 4096 0 0 0 0 17 1 0 0
/proc/9713/statm: 11787 11654 86 214 0 11569 0
Current children cumulated CPU time (s) 11.26
Current children cumulated vsize (KiB) 47148

[startup+11.3773 s]
/proc/loadavg: 1.66 1.77 1.77 2/65 9714
/proc/meminfo: memFree=1910912/2055920 swapFree=4183020/4192956
[pid=9713] ppid=9711 vsize=47148 CPUtime=11.36
/proc/9713/stat : 9713 (mmisat) R 9711 9713 9566 0 -1 4195840 17397 0 0 0 1118 18 0 0 25 0 1 0 234405865 48279552 11654 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134551852 0 0 4096 0 0 0 0 17 1 0 0
/proc/9713/statm: 11787 11654 86 214 0 11569 0
Current children cumulated CPU time (s) 11.36
Current children cumulated vsize (KiB) 47148

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 11.4621
CPU time (s): 11.4573
CPU user time (s): 11.1843
CPU system time (s): 0.272958
CPU usage (%): 99.958
Max. virtual memory (cumulated for all children) (KiB): 70124

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 11.1843
system time used= 0.272958
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 17397
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 0.031995 second system time

The end



Launcher Data (download as text)




Begin job on node70 on Mon Feb 26 18:54:12 UTC 2007

IDJOB= 308118
IDBENCH= 20223
IDSOLVER= 108
FILE ID= node70/308118-1172516052

PBS_JOBID= 3971777

Free space on /tmp= 66560 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.7/v3500/unif2p-p0.7-v3500-c9345-S1455331099-09-SAT.cnf
COMMAND LINE= /tmp/evaluation/308118-1172516052/mmisat /tmp/evaluation/308118-1172516052/instance-308118-1172516052.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node70/watcher-308118-1172516052 -o ROOT/results/node70/solver-308118-1172516052 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/308118-1172516052/mmisat /tmp/evaluation/308118-1172516052/instance-308118-1172516052.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  c88c589a7c8f9b32a4b7d3cd9d764f32

RANDOM SEED= 211182593

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node70.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		: 3000.261
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		: 3000.261
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:       1958096 kB
Buffers:         17548 kB
Cached:          44260 kB
SwapCached:       3948 kB
Active:          34076 kB
Inactive:        37640 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1958096 kB
SwapTotal:     4192956 kB
SwapFree:      4183020 kB
Dirty:            1372 kB
Writeback:           0 kB
Mapped:          15280 kB
Slab:            12140 kB
Committed_AS:   332380 kB
PageTables:       1396 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= 66515 MiB

End job on node70 on Mon Feb 26 18:54:23 UTC 2007