Trace number 339704

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 4.18236 4.18521

General information on the benchmark

Namecrafted/Difficult/contest-02-03-04/
contest04-connm-ue-csp-sat-n600-d0.02-s1676244754.sat05-535.reshuffled-07.cnf
MD5SUMd2283e85579af5f5de3cfcfaac7f25fa
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark518.297
Satisfiable
(Un)Satisfiability was proved
Number of variables580
Number of clauses7153
Sum of the clauses size21604
Maximum clause length4
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 37008
Number of clauses of size 4145
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 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node59/watcher-339704-1173709997 -o ROOT/results/node59/solver-339704-1173709997 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/339704-1173709997/mmisat /tmp/evaluation/339704-1173709997/instance-339704-1173709997.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2400 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: 0.91 0.97 1.02 3/64 28118
/proc/meminfo: memFree=1794608/2055920 swapFree=4174680/4192956
[pid=28118] ppid=28116 vsize=1176 CPUtime=0
/proc/28118/stat : 28118 (mmisat) R 28116 28118 26921 0 -1 4194304 153 0 0 0 0 0 0 0 18 0 1 0 390956350 1204224 136 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/28118/statm: 294 137 81 214 0 76 0

[startup+0.0509629 s]
/proc/loadavg: 0.91 0.97 1.02 3/64 28118
/proc/meminfo: memFree=1794608/2055920 swapFree=4174680/4192956
[pid=28118] ppid=28116 vsize=1572 CPUtime=0.04
/proc/28118/stat : 28118 (mmisat) R 28116 28118 26921 0 -1 4194304 248 0 0 0 4 0 0 0 18 0 1 0 390956350 1609728 231 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/28118/statm: 393 231 81 214 0 175 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1572

[startup+0.102969 s]
/proc/loadavg: 0.91 0.97 1.02 3/64 28118
/proc/meminfo: memFree=1794608/2055920 swapFree=4174680/4192956
[pid=28118] ppid=28116 vsize=1836 CPUtime=0.1
/proc/28118/stat : 28118 (mmisat) R 28116 28118 26921 0 -1 4194304 307 0 0 0 10 0 0 0 18 0 1 0 390956350 1880064 290 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/28118/statm: 459 290 81 214 0 241 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1836

[startup+0.301991 s]
/proc/loadavg: 0.91 0.97 1.02 3/64 28118
/proc/meminfo: memFree=1794608/2055920 swapFree=4174680/4192956
[pid=28118] ppid=28116 vsize=2364 CPUtime=0.29
/proc/28118/stat : 28118 (mmisat) R 28116 28118 26921 0 -1 4194304 449 0 0 0 29 0 0 0 19 0 1 0 390956350 2420736 432 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/28118/statm: 591 432 81 214 0 373 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2364

[startup+0.702034 s]
/proc/loadavg: 0.91 0.97 1.02 3/64 28118
/proc/meminfo: memFree=1794608/2055920 swapFree=4174680/4192956
[pid=28118] ppid=28116 vsize=3024 CPUtime=0.69
/proc/28118/stat : 28118 (mmisat) R 28116 28118 26921 0 -1 4194304 629 0 0 0 69 0 0 0 22 0 1 0 390956350 3096576 612 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517199 0 0 4096 0 0 0 0 17 1 0 0
/proc/28118/statm: 756 612 81 214 0 538 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3024

[startup+1.50112 s]
/proc/loadavg: 0.91 0.97 1.02 2/65 28119
/proc/meminfo: memFree=1792104/2055920 swapFree=4174680/4192956
[pid=28118] ppid=28116 vsize=3948 CPUtime=1.49
/proc/28118/stat : 28118 (mmisat) R 28116 28118 26921 0 -1 4194304 865 0 0 0 149 0 0 0 25 0 1 0 390956350 4042752 848 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/28118/statm: 987 848 81 214 0 769 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3948

[startup+3.1013 s]
/proc/loadavg: 0.91 0.97 1.02 2/65 28119
/proc/meminfo: memFree=1791016/2055920 swapFree=4174680/4192956
[pid=28118] ppid=28116 vsize=4872 CPUtime=3.09
/proc/28118/stat : 28118 (mmisat) R 28116 28118 26921 0 -1 4194304 1072 0 0 0 309 0 0 0 25 0 1 0 390956350 4988928 1055 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/28118/statm: 1218 1055 81 214 0 1000 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 4872

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

[startup+3.90139 s]
/proc/loadavg: 0.91 0.97 1.02 2/65 28119
/proc/meminfo: memFree=1782760/2055920 swapFree=4174680/4192956
[pid=28118] ppid=28116 vsize=12584 CPUtime=3.89
/proc/28118/stat : 28118 (mmisat) R 28116 28118 26921 0 -1 4194304 3025 0 0 0 388 1 0 0 25 0 1 0 390956350 12886016 3008 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134523607 0 0 4096 0 0 0 0 17 1 0 0
/proc/28118/statm: 3146 3008 91 214 0 2928 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 12584

[startup+4.10141 s]
/proc/loadavg: 0.91 0.97 1.02 2/65 28119
/proc/meminfo: memFree=1782760/2055920 swapFree=4174680/4192956
[pid=28118] ppid=28116 vsize=12584 CPUtime=4.09
/proc/28118/stat : 28118 (mmisat) R 28116 28118 26921 0 -1 4194304 3025 0 0 0 408 1 0 0 25 0 1 0 390956350 12886016 3008 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134556717 0 0 4096 0 0 0 0 17 1 0 0
/proc/28118/statm: 3146 3008 91 214 0 2928 0
Current children cumulated CPU time (s) 4.09
Current children cumulated vsize (KiB) 12584

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 4.18521
CPU time (s): 4.18236
CPU user time (s): 4.12037
CPU system time (s): 0.06199
CPU usage (%): 99.932
Max. virtual memory (cumulated for all children) (KiB): 12584

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.12037
system time used= 0.06199
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3038
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 0.006998 second user time and 0.009998 second system time

The end



Launcher Data (download as text)




Begin job on node59 on Mon Mar 12 14:33:17 UTC 2007

IDJOB= 339704
IDBENCH= 24753
IDSOLVER= 108
FILE ID= node59/339704-1173709997

PBS_JOBID= 4101766

Free space on /tmp= 66538 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/crafted/Difficult/contest-02-03-04/contest04-connm-ue-csp-sat-n600-d0.02-s1676244754.sat05-535.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/339704-1173709997/mmisat /tmp/evaluation/339704-1173709997/instance-339704-1173709997.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node59/watcher-339704-1173709997 -o ROOT/results/node59/solver-339704-1173709997 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/339704-1173709997/mmisat /tmp/evaluation/339704-1173709997/instance-339704-1173709997.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  d2283e85579af5f5de3cfcfaac7f25fa

RANDOM SEED= 888281281

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node59.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		: 3000.225
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		: 3000.225
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:       1795016 kB
Buffers:         30928 kB
Cached:         172344 kB
SwapCached:      12696 kB
Active:          85376 kB
Inactive:       137532 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1795016 kB
SwapTotal:     4192956 kB
SwapFree:      4174680 kB
Dirty:            1200 kB
Writeback:           0 kB
Mapped:          15644 kB
Slab:            23952 kB
Committed_AS:   726608 kB
PageTables:       1472 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= 66526 MiB

End job on node59 on Mon Mar 12 14:33:21 UTC 2007