Trace number 1554597

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
gNovelty+-T 2009-03-22Signal 0.51892 0.527879

General information on the benchmark

NameAPPLICATIONS/bitverif/
countbitssrl/countbitssrl016.cnf
MD5SUM505fee3283f518ccb9d234f549b3c214
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.65659
Satisfiable
(Un)Satisfiability was proved
Number of variables4567
Number of clauses13652
Sum of the clauses size31852
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 29100
Number of clauses of size 34550
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.09/0.15	c +------------------------------+
0.09/0.15	c | gNovelty+, version 1.0       |
0.09/0.15	c +------------------------------+
0.09/0.15	c gnovelty+ -h for help
0.09/0.15	c

Verifier Data 

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer: <no 's ' line found>

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1554597-1238729792/watcher-1554597-1238729792 -o /tmp/evaluation-result-1554597-1238729792/solver-1554597-1238729792 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+ HOME/instance-1554597-1238729792.cnf 1431344680 2 

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): 1800 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: 2.00 2.00 2.00 4/94 998
/proc/meminfo: memFree=1817216/2055920 swapFree=4165840/4192956
[pid=998] ppid=996 vsize=509152 CPUtime=0
/proc/998/stat : 998 (gnovelty+) R 996 998 885 0 -1 4194304 1501 0 0 0 0 0 0 0 20 0 1 0 1145642837 521371648 1486 1992294400 134512640 135680988 4294956192 18446744073709551615 134537167 0 0 4096 0 0 0 0 17 1 0 0
/proc/998/statm: 127288 1494 101 285 0 127000 0

[startup+0.0355401 s]
/proc/loadavg: 2.00 2.00 2.00 4/94 998
/proc/meminfo: memFree=1817216/2055920 swapFree=4165840/4192956
[pid=998] ppid=996 vsize=509152 CPUtime=0.03
/proc/998/stat : 998 (gnovelty+) R 996 998 885 0 -1 4194304 7391 0 0 0 0 3 0 0 21 0 1 0 1145642837 521371648 7376 1992294400 134512640 135680988 4294956192 18446744073709551615 134537167 0 0 4096 0 0 0 0 17 1 0 0
/proc/998/statm: 127288 7384 101 285 0 127000 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 509152

[startup+0.101545 s]
/proc/loadavg: 2.00 2.00 2.00 4/94 998
/proc/meminfo: memFree=1817216/2055920 swapFree=4165840/4192956
[pid=998] ppid=996 vsize=516964 CPUtime=0.09
/proc/998/stat : 998 (gnovelty+) R 996 998 885 0 -1 4194304 14333 0 0 0 3 6 0 0 21 0 1 0 1145642837 529371136 14317 1992294400 134512640 135680988 4294956192 18446744073709551615 134537842 0 0 4096 0 0 0 0 17 1 0 0
/proc/998/statm: 129241 14322 102 285 0 128953 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 516964

[startup+0.301567 s]
/proc/loadavg: 2.00 2.00 2.00 4/94 998
/proc/meminfo: memFree=1817216/2055920 swapFree=4165840/4192956
[pid=998] ppid=996 vsize=530372 CPUtime=0.29
/proc/998/stat : 998 (gnovelty+) R 996 998 885 0 -1 4195840 22648 0 0 0 9 20 0 0 23 0 2 0 1145642837 543100928 19910 1992294400 134512640 135680988 4294956192 18446744073709551615 134532934 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/998/statm: 132593 19910 106 285 0 132305 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 530372

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

[startup+0.501589 s]
/proc/loadavg: 2.00 2.00 2.00 4/94 998
/proc/meminfo: memFree=1817216/2055920 swapFree=4165840/4192956
[pid=998] ppid=996 vsize=530372 CPUtime=0.49
/proc/998/stat : 998 (gnovelty+) D 996 998 885 0 -1 4195840 22922 0 0 0 9 40 0 0 25 0 2 0 1145642837 543100928 19910 1992294400 134512640 135680988 4294956192 18446744073709551615 134532934 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/998/statm: 132593 19910 106 285 0 132305 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 530372

Child ended because it received signal 11 (SIGSEGV)
Child dumped core
Real time (s): 0.527879
CPU time (s): 0.51892
CPU user time (s): 0.090986
CPU system time (s): 0.427934
CPU usage (%): 98.3028
Max. virtual memory (cumulated for all children) (KiB): 530372

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.090986
system time used= 0.427934
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 24908
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= 10

runsolver used 0.001999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node91 at 2009-04-03 05:36:32
IDJOB=1554597
IDBENCH=70783
IDSOLVER=550
FILE ID=node91/1554597-1238729792
PBS_JOBID= 9085379
Free space on /tmp= 66528 MiB

SOLVER NAME= gNovelty+-T 2009-03-22
BENCH NAME= SAT09/APPLICATIONS/bitverif/countbitssrl/countbitssrl016.cnf
COMMAND LINE= HOME/gnovelty+ BENCHNAME RANDOMSEED MAXNBTHREAD
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1554597-1238729792/watcher-1554597-1238729792 -o /tmp/evaluation-result-1554597-1238729792/solver-1554597-1238729792 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+ HOME/instance-1554597-1238729792.cnf 1431344680 2

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 2

MD5SUM BENCH= 505fee3283f518ccb9d234f549b3c214
RANDOM SEED=1431344680

node91.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.252
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		: 3000.252
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1817704 kB
Buffers:         49532 kB
Cached:         103876 kB
SwapCached:       8976 kB
Active:          31500 kB
Inactive:       132448 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1817704 kB
SwapTotal:     4192956 kB
SwapFree:      4165840 kB
Dirty:            1612 kB
Writeback:           0 kB
Mapped:          16204 kB
Slab:            57412 kB
Committed_AS:  2442008 kB
PageTables:       3260 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66448 MiB
End job on node91 at 2009-04-03 05:36:33