Trace number 338318

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 19.43 19.4358

General information on the benchmark

Namecrafted/Difficult/contest05/QG/
QG6-gensys-icl004.sat05-2716.reshuffled-07.cnf
MD5SUMdd374701f9b3db5a8ac095414c025d77
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark99.0179
Satisfiable
(Un)Satisfiability was proved
Number of variables1605
Number of clauses8025
Sum of the clauses size68677
Maximum clause length16
Minimum clause length1
Number of clauses of size 127
Number of clauses of size 2247
Number of clauses of size 31142
Number of clauses of size 4106
Number of clauses of size 5888
Number of clauses of size over 55615

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/node3/watcher-338318-1173683842 -o ROOT/results/node3/solver-338318-1173683842 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/338318-1173683842/mmisat /tmp/evaluation/338318-1173683842/instance-338318-1173683842.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: 1.87 1.50 1.19 3/77 15229
/proc/meminfo: memFree=1569568/2055920 swapFree=4158660/4192956
[pid=15229] ppid=15227 vsize=1308 CPUtime=0
/proc/15229/stat : 15229 (mmisat) R 15227 15229 14792 0 -1 4194304 179 0 0 0 0 0 0 0 18 0 1 0 388339040 1339392 162 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/15229/statm: 327 162 81 214 0 109 0

[startup+0.104159 s]
/proc/loadavg: 1.87 1.50 1.19 3/77 15229
/proc/meminfo: memFree=1569568/2055920 swapFree=4158660/4192956
[pid=15229] ppid=15227 vsize=2100 CPUtime=0.1
/proc/15229/stat : 15229 (mmisat) R 15227 15229 14792 0 -1 4194304 387 0 0 0 10 0 0 0 18 0 1 0 388339040 2150400 370 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/15229/statm: 525 370 81 214 0 307 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2100

[startup+0.201166 s]
/proc/loadavg: 1.87 1.50 1.19 3/77 15229
/proc/meminfo: memFree=1569568/2055920 swapFree=4158660/4192956
[pid=15229] ppid=15227 vsize=2496 CPUtime=0.19
/proc/15229/stat : 15229 (mmisat) R 15227 15229 14792 0 -1 4194304 495 0 0 0 19 0 0 0 18 0 1 0 388339040 2555904 478 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/15229/statm: 624 478 81 214 0 406 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 2496

[startup+0.301175 s]
/proc/loadavg: 1.87 1.50 1.19 3/77 15229
/proc/meminfo: memFree=1569568/2055920 swapFree=4158660/4192956
[pid=15229] ppid=15227 vsize=2892 CPUtime=0.29
/proc/15229/stat : 15229 (mmisat) R 15227 15229 14792 0 -1 4194304 583 0 0 0 29 0 0 0 19 0 1 0 388339040 2961408 566 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/15229/statm: 723 566 81 214 0 505 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2892

[startup+0.701208 s]
/proc/loadavg: 1.87 1.50 1.19 3/77 15229
/proc/meminfo: memFree=1569568/2055920 swapFree=4158660/4192956
[pid=15229] ppid=15227 vsize=3816 CPUtime=0.69
/proc/15229/stat : 15229 (mmisat) R 15227 15229 14792 0 -1 4194304 832 0 0 0 69 0 0 0 22 0 1 0 388339040 3907584 815 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/15229/statm: 954 815 81 214 0 736 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3816

[startup+1.50227 s]
/proc/loadavg: 1.87 1.50 1.19 2/78 15230
/proc/meminfo: memFree=1565848/2055920 swapFree=4158660/4192956
[pid=15229] ppid=15227 vsize=5268 CPUtime=1.49
/proc/15229/stat : 15229 (mmisat) R 15227 15229 14792 0 -1 4194304 1164 0 0 0 149 0 0 0 25 0 1 0 388339040 5394432 1147 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/15229/statm: 1317 1147 81 214 0 1099 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5268

[startup+3.1014 s]
/proc/loadavg: 1.87 1.50 1.19 2/78 15230
/proc/meminfo: memFree=1564184/2055920 swapFree=4158660/4192956
[pid=15229] ppid=15227 vsize=6984 CPUtime=3.09
/proc/15229/stat : 15229 (mmisat) R 15227 15229 14792 0 -1 4194304 1609 0 0 0 309 0 0 0 25 0 1 0 388339040 7151616 1592 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/15229/statm: 1746 1592 81 214 0 1528 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6984

[startup+6.30167 s]
/proc/loadavg: 1.80 1.49 1.19 2/78 15230
/proc/meminfo: memFree=1561432/2055920 swapFree=4158660/4192956
[pid=15229] ppid=15227 vsize=9228 CPUtime=6.29
/proc/15229/stat : 15229 (mmisat) R 15227 15229 14792 0 -1 4194304 2179 0 0 0 628 1 0 0 25 0 1 0 388339040 9449472 2162 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517187 0 0 4096 0 0 0 0 17 1 0 0
/proc/15229/statm: 2307 2162 81 214 0 2089 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 9228

[startup+12.7012 s]
/proc/loadavg: 1.73 1.48 1.18 2/78 15230
/proc/meminfo: memFree=1558808/2055920 swapFree=4158660/4192956
[pid=15229] ppid=15227 vsize=11376 CPUtime=12.69
/proc/15229/stat : 15229 (mmisat) R 15227 15229 14792 0 -1 4194304 2701 0 0 0 1268 1 0 0 25 0 1 0 388339040 11649024 2684 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134518822 0 0 4096 0 0 0 0 17 1 0 0
/proc/15229/statm: 2844 2684 84 214 0 2626 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 11376

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

[startup+12.8012 s]
/proc/loadavg: 1.73 1.48 1.18 2/78 15230
/proc/meminfo: memFree=1558808/2055920 swapFree=4158660/4192956
[pid=15229] ppid=15227 vsize=11376 CPUtime=12.79
/proc/15229/stat : 15229 (mmisat) R 15227 15229 14792 0 -1 4194304 2701 0 0 0 1278 1 0 0 25 0 1 0 388339040 11649024 2684 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134518866 0 0 4096 0 0 0 0 17 1 0 0
/proc/15229/statm: 2844 2684 84 214 0 2626 0
Current children cumulated CPU time (s) 12.79
Current children cumulated vsize (KiB) 11376

[startup+16.0015 s]
/proc/loadavg: 1.68 1.47 1.18 2/78 15230
/proc/meminfo: memFree=1558872/2055920 swapFree=4158660/4192956
[pid=15229] ppid=15227 vsize=11376 CPUtime=15.98
/proc/15229/stat : 15229 (mmisat) R 15227 15229 14792 0 -1 4194304 2701 0 0 0 1597 1 0 0 25 0 1 0 388339040 11649024 2684 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134519064 0 0 4096 0 0 0 0 17 1 0 0
/proc/15229/statm: 2844 2684 84 214 0 2626 0
Current children cumulated CPU time (s) 15.98
Current children cumulated vsize (KiB) 11376

[startup+17.6016 s]
/proc/loadavg: 1.68 1.47 1.18 2/78 15230
/proc/meminfo: memFree=1558872/2055920 swapFree=4158660/4192956
[pid=15229] ppid=15227 vsize=11376 CPUtime=17.59
/proc/15229/stat : 15229 (mmisat) R 15227 15229 14792 0 -1 4194304 2701 0 0 0 1758 1 0 0 25 0 1 0 388339040 11649024 2684 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134523222 0 0 4096 0 0 0 0 17 1 0 0
/proc/15229/statm: 2844 2684 84 214 0 2626 0
Current children cumulated CPU time (s) 17.59
Current children cumulated vsize (KiB) 11376

[startup+18.4017 s]
/proc/loadavg: 1.68 1.47 1.18 2/78 15230
/proc/meminfo: memFree=1558872/2055920 swapFree=4158660/4192956
[pid=15229] ppid=15227 vsize=11376 CPUtime=18.38
/proc/15229/stat : 15229 (mmisat) R 15227 15229 14792 0 -1 4194304 2701 0 0 0 1837 1 0 0 25 0 1 0 388339040 11649024 2684 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134518917 0 0 4096 0 0 0 0 17 1 0 0
/proc/15229/statm: 2844 2684 84 214 0 2626 0
Current children cumulated CPU time (s) 18.38
Current children cumulated vsize (KiB) 11376

[startup+19.2027 s]
/proc/loadavg: 1.68 1.47 1.18 2/78 15230
/proc/meminfo: memFree=1558872/2055920 swapFree=4158660/4192956
[pid=15229] ppid=15227 vsize=20756 CPUtime=19.18
/proc/15229/stat : 15229 (mmisat) R 15227 15229 14792 0 -1 4194304 5050 0 0 0 1916 2 0 0 25 0 1 0 388339040 21254144 5033 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134518786 0 0 4096 0 0 0 0 17 1 0 0
/proc/15229/statm: 5189 5033 85 214 0 4971 0
Current children cumulated CPU time (s) 19.18
Current children cumulated vsize (KiB) 20756

[startup+19.4018 s]
/proc/loadavg: 1.68 1.47 1.18 2/78 15230
/proc/meminfo: memFree=1558872/2055920 swapFree=4158660/4192956
[pid=15229] ppid=15227 vsize=20828 CPUtime=19.39
/proc/15229/stat : 15229 (mmisat) R 15227 15229 14792 0 -1 4195840 7481 0 0 0 1931 8 0 0 25 0 1 0 388339040 21327872 5072 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134551852 0 0 4096 0 0 0 0 17 1 0 0
/proc/15229/statm: 5207 5072 86 214 0 4989 0
Current children cumulated CPU time (s) 19.39
Current children cumulated vsize (KiB) 20828

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 19.4358
CPU time (s): 19.43
CPU user time (s): 19.3121
CPU system time (s): 0.117982
CPU usage (%): 99.9706
Max. virtual memory (cumulated for all children) (KiB): 30392

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 19.3121
system time used= 0.117982
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7483
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= 31

runsolver used 0.023996 second user time and 0.053991 second system time

The end



Launcher Data (download as text)




Begin job on node3 on Mon Mar 12 07:17:22 UTC 2007

IDJOB= 338318
IDBENCH= 24720
IDSOLVER= 108
FILE ID= node3/338318-1173683842

PBS_JOBID= 4101487

Free space on /tmp= 66348 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/crafted/Difficult/contest05/QG/QG6-gensys-icl004.sat05-2716.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/338318-1173683842/mmisat /tmp/evaluation/338318-1173683842/instance-338318-1173683842.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node3/watcher-338318-1173683842 -o ROOT/results/node3/solver-338318-1173683842 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/338318-1173683842/mmisat /tmp/evaluation/338318-1173683842/instance-338318-1173683842.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  dd374701f9b3db5a8ac095414c025d77

RANDOM SEED= 907617342

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node3.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		: 3000.241
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		: 3000.241
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:       1569976 kB
Buffers:         37204 kB
Cached:         358340 kB
SwapCached:       2120 kB
Active:         288796 kB
Inactive:       129476 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1569976 kB
SwapTotal:     4192956 kB
SwapFree:      4158660 kB
Dirty:            1448 kB
Writeback:           0 kB
Mapped:          30896 kB
Slab:            53344 kB
Committed_AS:  1587332 kB
PageTables:       1656 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= 66328 MiB

End job on node3 on Mon Mar 12 07:17:41 UTC 2007