Trace number 311972

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 4.88026 4.88278

General information on the benchmark

Namerandom/2+p/p0.8/v2405/
unif2p-p0.8-v2405-c7479-S1163137157-19-SAT.cnf
MD5SUM9b15d123fe04b0b8ae54fce3b90458d6
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.215966
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/node12/watcher-311972-1172579874 -o ROOT/results/node12/solver-311972-1172579874 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/311972-1172579874/mmisat /tmp/evaluation/311972-1172579874/instance-311972-1172579874.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 24025
/proc/meminfo: memFree=1490416/2055920 swapFree=4154952/4192956
[pid=24025] ppid=24023 vsize=1440 CPUtime=0
/proc/24025/stat : 24025 (mmisat) R 24023 24025 22770 0 -1 4194304 227 0 0 0 0 0 0 0 18 0 1 0 277941860 1474560 210 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/24025/statm: 360 211 81 214 0 142 0

[startup+0.106549 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 24025
/proc/meminfo: memFree=1490416/2055920 swapFree=4154952/4192956
[pid=24025] ppid=24023 vsize=3552 CPUtime=0.1
/proc/24025/stat : 24025 (mmisat) R 24023 24025 22770 0 -1 4194304 765 0 0 0 10 0 0 0 18 0 1 0 277941860 3637248 748 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/24025/statm: 888 748 81 214 0 670 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 3552

[startup+0.514623 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 24025
/proc/meminfo: memFree=1490416/2055920 swapFree=4154952/4192956
[pid=24025] ppid=24023 vsize=6324 CPUtime=0.5
/proc/24025/stat : 24025 (mmisat) R 24023 24025 22770 0 -1 4194304 1444 0 0 0 50 0 0 0 22 0 1 0 277941860 6475776 1427 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/24025/statm: 1581 1427 81 214 0 1363 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 6324

[startup+1.33477 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 24026
/proc/meminfo: memFree=1482600/2055920 swapFree=4154952/4192956
[pid=24025] ppid=24023 vsize=9360 CPUtime=1.33
/proc/24025/stat : 24025 (mmisat) R 24023 24025 22770 0 -1 4194304 2203 0 0 0 132 1 0 0 25 0 1 0 277941860 9584640 2186 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134517715 0 0 4096 0 0 0 0 17 1 0 0
/proc/24025/statm: 2340 2186 81 214 0 2122 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 9360

[startup+2.97107 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 24026
/proc/meminfo: memFree=1479272/2055920 swapFree=4154952/4192956
[pid=24025] ppid=24023 vsize=13188 CPUtime=2.96
/proc/24025/stat : 24025 (mmisat) R 24023 24025 22770 0 -1 4194304 3165 0 0 0 295 1 0 0 25 0 1 0 277941860 13504512 3148 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/24025/statm: 3297 3148 81 214 0 3079 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 13188

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

[startup+3.27712 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 24026
/proc/meminfo: memFree=1479272/2055920 swapFree=4154952/4192956
[pid=24025] ppid=24023 vsize=13716 CPUtime=3.26
/proc/24025/stat : 24025 (mmisat) R 24023 24025 22770 0 -1 4194304 3302 0 0 0 325 1 0 0 25 0 1 0 277941860 14045184 3285 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/24025/statm: 3429 3285 81 214 0 3211 0
Current children cumulated CPU time (s) 3.26
Current children cumulated vsize (KiB) 13716

[startup+4.09927 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 24026
/proc/meminfo: memFree=1477096/2055920 swapFree=4154952/4192956
[pid=24025] ppid=24023 vsize=14904 CPUtime=4.08
/proc/24025/stat : 24025 (mmisat) R 24023 24025 22770 0 -1 4194304 3598 0 0 0 407 1 0 0 25 0 1 0 277941860 15261696 3581 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/24025/statm: 3726 3581 81 214 0 3508 0
Current children cumulated CPU time (s) 4.08
Current children cumulated vsize (KiB) 14904

[startup+4.50734 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 24026
/proc/meminfo: memFree=1475944/2055920 swapFree=4154952/4192956
[pid=24025] ppid=24023 vsize=15072 CPUtime=4.49
/proc/24025/stat : 24025 (mmisat) R 24023 24025 22770 0 -1 4194304 3635 0 0 0 448 1 0 0 25 0 1 0 277941860 15433728 3618 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134520276 0 0 4096 0 0 0 0 17 1 0 0
/proc/24025/statm: 3768 3618 84 214 0 3550 0
Current children cumulated CPU time (s) 4.49
Current children cumulated vsize (KiB) 15072

[startup+4.71538 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 24026
/proc/meminfo: memFree=1475944/2055920 swapFree=4154952/4192956
[pid=24025] ppid=24023 vsize=41744 CPUtime=4.7
/proc/24025/stat : 24025 (mmisat) R 24023 24025 22770 0 -1 4194304 10307 0 0 0 467 3 0 0 25 0 1 0 277941860 42745856 10290 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134524269 0 0 4096 0 0 0 0 17 1 0 0
/proc/24025/statm: 10436 10290 86 214 0 10218 0
Current children cumulated CPU time (s) 4.7
Current children cumulated vsize (KiB) 41744

[startup+4.8174 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 24026
/proc/meminfo: memFree=1475944/2055920 swapFree=4154952/4192956
[pid=24025] ppid=24023 vsize=28252 CPUtime=4.8
/proc/24025/stat : 24025 (mmisat) R 24023 24025 22770 0 -1 4195840 10310 0 0 0 472 8 0 0 25 0 1 0 277941860 28930048 6929 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134551852 0 0 4096 0 0 0 0 17 1 0 0
/proc/24025/statm: 7063 6929 86 214 0 6845 0
Current children cumulated CPU time (s) 4.8
Current children cumulated vsize (KiB) 28252

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 4.88278
CPU time (s): 4.88026
CPU user time (s): 4.72828
CPU system time (s): 0.151976
CPU usage (%): 99.9483
Max. virtual memory (cumulated for all children) (KiB): 41744

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.72828
system time used= 0.151976
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 10311
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= 101

runsolver used 0.004999 second user time and 0.018997 second system time

The end



Launcher Data (download as text)




Begin job on node12 on Tue Feb 27 12:37:54 UTC 2007

IDJOB= 311972
IDBENCH= 20329
IDSOLVER= 108
FILE ID= node12/311972-1172579874

PBS_JOBID= 3971685

Free space on /tmp= 66556 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v2405/unif2p-p0.8-v2405-c7479-S1163137157-19-SAT.cnf
COMMAND LINE= /tmp/evaluation/311972-1172579874/mmisat /tmp/evaluation/311972-1172579874/instance-311972-1172579874.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node12/watcher-311972-1172579874 -o ROOT/results/node12/solver-311972-1172579874 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/311972-1172579874/mmisat /tmp/evaluation/311972-1172579874/instance-311972-1172579874.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  9b15d123fe04b0b8ae54fce3b90458d6

RANDOM SEED= 92817540

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node12.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		: 3000.285
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		: 3000.285
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:       1490832 kB
Buffers:         61628 kB
Cached:         403460 kB
SwapCached:      18256 kB
Active:         263304 kB
Inactive:       228864 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1490832 kB
SwapTotal:     4192956 kB
SwapFree:      4154952 kB
Dirty:            1224 kB
Writeback:           0 kB
Mapped:          30748 kB
Slab:            58556 kB
Committed_AS:  1156780 kB
PageTables:       1696 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= 66530 MiB

End job on node12 on Tue Feb 27 12:37:59 UTC 2007