Trace number 1553349

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 0.732887 0.675691

General information on the benchmark

NameAPPLICATIONS/bitverif/
minxorminand/minxorminand032.cnf
MD5SUM49dda3faa6676166ee2ccb89f6cd8ca0
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark7.59684
Satisfiable
(Un)Satisfiability was proved
Number of variables10794
Number of clauses31997
Sum of the clauses size74657
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 221330
Number of clauses of size 310665
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.19/0.27	c +------------------------------+
0.19/0.27	c | gNovelty+, version 1.0       |
0.19/0.27	c +------------------------------+
0.19/0.27	c gnovelty+ -h for help
0.19/0.27	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-1553349-1238713859/watcher-1553349-1238713859 -o /tmp/evaluation-result-1553349-1238713859/solver-1553349-1238713859 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+ HOME/instance-1553349-1238713859.cnf 460333806 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: 1.01 1.05 1.08 3/64 29014
/proc/meminfo: memFree=808928/2055920 swapFree=4181692/4192956
[pid=29014] ppid=29012 vsize=509152 CPUtime=0
/proc/29014/stat : 29014 (gnovelty+) R 29012 29014 28797 0 -1 4194304 1020 0 0 0 0 0 0 0 18 0 1 0 315587271 521371648 1006 1992294400 134512640 135680988 4294956192 18446744073709551615 134537167 0 0 4096 0 0 0 0 17 1 0 0
/proc/29014/statm: 127288 1013 101 285 0 127000 0

[startup+0.0958779 s]
/proc/loadavg: 1.01 1.05 1.08 3/64 29014
/proc/meminfo: memFree=808928/2055920 swapFree=4181692/4192956
[pid=29014] ppid=29012 vsize=516964 CPUtime=0.08
/proc/29014/stat : 29014 (gnovelty+) R 29012 29014 28797 0 -1 4194304 10131 0 0 0 5 3 0 0 18 0 1 0 315587271 529371136 10115 1992294400 134512640 135680988 4294956192 18446744073709551615 134537779 0 0 4096 0 0 0 0 17 1 0 0
/proc/29014/statm: 129241 10120 102 285 0 128953 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 516964

[startup+0.101877 s]
/proc/loadavg: 1.01 1.05 1.08 3/64 29014
/proc/meminfo: memFree=808928/2055920 swapFree=4181692/4192956
[pid=29014] ppid=29012 vsize=516964 CPUtime=0.09
/proc/29014/stat : 29014 (gnovelty+) R 29012 29014 28797 0 -1 4194304 10875 0 0 0 6 3 0 0 18 0 1 0 315587271 529371136 10859 1992294400 134512640 135680988 4294956192 18446744073709551615 134537842 0 0 4096 0 0 0 0 17 1 0 0
/proc/29014/statm: 129241 10864 102 285 0 128953 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 516964

[startup+0.301906 s]
/proc/loadavg: 1.01 1.05 1.08 3/64 29014
/proc/meminfo: memFree=808928/2055920 swapFree=4181692/4192956
[pid=29014] ppid=29012 vsize=531880 CPUtime=0.32
/proc/29014/stat : 29014 (gnovelty+) R 29012 29014 28797 0 -1 4194304 20457 0 0 0 23 9 0 0 17 0 2 0 315587271 544645120 20441 1992294400 134512640 135680988 4294956192 18446744073709551615 134542571 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/29014/statm: 132970 20441 106 285 0 132682 0
Current children cumulated CPU time (s) 0.32
Current children cumulated vsize (KiB) 531880

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

[startup+0.501931 s]
/proc/loadavg: 1.01 1.05 1.08 3/64 29014
/proc/meminfo: memFree=808928/2055920 swapFree=4181692/4192956
[pid=29014] ppid=29012 vsize=531880 CPUtime=0.55
/proc/29014/stat : 29014 (gnovelty+) D 29012 29014 28797 0 -1 4195332 23017 0 0 0 29 26 0 0 17 0 2 0 315587271 544645120 20441 1992294400 134512640 135680988 4294956192 18446744073709551615 134533133 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/29014/statm: 132970 20441 106 285 0 132682 0
Current children cumulated CPU time (s) 0.55
Current children cumulated vsize (KiB) 531880

[startup+0.601947 s]
/proc/loadavg: 1.01 1.05 1.08 3/64 29014
/proc/meminfo: memFree=808928/2055920 swapFree=4181692/4192956
[pid=29014] ppid=29012 vsize=531880 CPUtime=0.65
/proc/29014/stat : 29014 (gnovelty+) D 29012 29014 28797 0 -1 4195332 23017 0 0 0 29 36 0 0 17 0 2 0 315587271 544645120 20441 1992294400 134512640 135680988 4294956192 18446744073709551615 134533133 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/29014/statm: 132970 20441 106 285 0 132682 0
Current children cumulated CPU time (s) 0.65
Current children cumulated vsize (KiB) 531880

Child ended because it received signal 11 (SIGSEGV)
Child dumped core
Real time (s): 0.675691
CPU time (s): 0.732887
CPU user time (s): 0.297954
CPU system time (s): 0.434933
CPU usage (%): 108.465
Max. virtual memory (cumulated for all children) (KiB): 531880

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.297954
system time used= 0.434933
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 25285
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= 7
involuntary context switches= 9

runsolver used 0.002999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node42 at 2009-04-03 01:10:59
IDJOB=1553349
IDBENCH=70759
IDSOLVER=550
FILE ID=node42/1553349-1238713859
PBS_JOBID= 9085293
Free space on /tmp= 66248 MiB

SOLVER NAME= gNovelty+-T 2009-03-22
BENCH NAME= SAT09/APPLICATIONS/bitverif/minxorminand/minxorminand032.cnf
COMMAND LINE= HOME/gnovelty+ BENCHNAME RANDOMSEED MAXNBTHREAD
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1553349-1238713859/watcher-1553349-1238713859 -o /tmp/evaluation-result-1553349-1238713859/solver-1553349-1238713859 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+ HOME/instance-1553349-1238713859.cnf 460333806 2

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

MD5SUM BENCH= 49dda3faa6676166ee2ccb89f6cd8ca0
RANDOM SEED=460333806

node42.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		: 3000.211
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		: 3000.211
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:        809344 kB
Buffers:        121124 kB
Cached:        1014936 kB
SwapCached:       5184 kB
Active:         256176 kB
Inactive:       888360 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        809344 kB
SwapTotal:     4192956 kB
SwapFree:      4181692 kB
Dirty:            1872 kB
Writeback:           0 kB
Mapped:          14228 kB
Slab:            88076 kB
Committed_AS:  1205780 kB
PageTables:       1388 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= 66168 MiB
End job on node42 at 2009-04-03 01:11:00