Trace number 1723793

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
NCVWr 2009-03-22Signal 0.926858 0.926289

General information on the benchmark

Namevelev-vliw-uns-4.0-9C1.cnf
MD5SUM0c9a15d0f561e9d1bb438b04ae3c31af
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark324.148
Satisfiable
(Un)Satisfiability was proved
Number of variables96177
Number of clauses1814189
Sum of the clauses size5280501
Maximum clause length2216
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 21178665
Number of clauses of size 3560157
Number of clauses of size 45491
Number of clauses of size 54739
Number of clauses of size over 565136

Solver Data


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-1723793-1240688977/watcher-1723793-1240688977 -o /tmp/evaluation-result-1723793-1240688977/solver-1723793-1240688977 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/NCVWr HOME/instance-1723793-1240688977.cnf 1792484692 

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: 0.93 0.98 1.08 3/64 21030
/proc/meminfo: memFree=1762816/2055920 swapFree=4181888/4192956
[pid=21030] ppid=21028 vsize=411884 CPUtime=0
/proc/21030/stat : 21030 (NCVWr) R 21028 21030 20489 0 -1 4194304 119 0 0 0 0 0 0 0 18 0 1 0 96931178 421769216 104 1992294400 134512640 135113558 4294956208 18446744073709551615 134619510 0 0 4096 0 0 0 0 17 1 0 0
/proc/21030/statm: 102971 104 55 146 0 101846 0

[startup+0.0392461 s]
/proc/loadavg: 0.93 0.98 1.08 3/64 21030
/proc/meminfo: memFree=1762816/2055920 swapFree=4181888/4192956
[pid=21030] ppid=21028 vsize=412412 CPUtime=0.03
/proc/21030/stat : 21030 (NCVWr) R 21028 21030 20489 0 -1 4194304 340 0 0 0 3 0 0 0 18 0 1 0 96931178 422309888 325 1992294400 134512640 135113558 4294956208 18446744073709551615 134619510 0 0 4096 0 0 0 0 17 1 0 0
/proc/21030/statm: 103103 325 55 146 0 101978 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 412412

[startup+0.101257 s]
/proc/loadavg: 0.93 0.98 1.08 3/64 21030
/proc/meminfo: memFree=1762816/2055920 swapFree=4181888/4192956
[pid=21030] ppid=21028 vsize=413468 CPUtime=0.09
/proc/21030/stat : 21030 (NCVWr) R 21028 21030 20489 0 -1 4194304 733 0 0 0 9 0 0 0 18 0 1 0 96931178 423391232 718 1992294400 134512640 135113558 4294956208 18446744073709551615 134523307 0 0 4096 0 0 0 0 17 1 0 0
/proc/21030/statm: 103367 718 55 146 0 102242 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 413468

[startup+0.301292 s]
/proc/loadavg: 0.93 0.98 1.08 3/64 21030
/proc/meminfo: memFree=1762816/2055920 swapFree=4181888/4192956
[pid=21030] ppid=21028 vsize=416372 CPUtime=0.29
/proc/21030/stat : 21030 (NCVWr) R 21028 21030 20489 0 -1 4194304 1920 0 0 0 28 1 0 0 19 0 1 0 96931178 426364928 1905 1992294400 134512640 135113558 4294956208 18446744073709551615 134640574 0 0 4096 0 0 0 0 17 1 0 0
/proc/21030/statm: 104093 1906 55 146 0 102968 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 416372

[startup+0.701363 s]
/proc/loadavg: 0.93 0.98 1.08 3/64 21030
/proc/meminfo: memFree=1762816/2055920 swapFree=4181888/4192956
[pid=21030] ppid=21028 vsize=422180 CPUtime=0.69
/proc/21030/stat : 21030 (NCVWr) R 21028 21030 20489 0 -1 4194304 4256 0 0 0 67 2 0 0 22 0 1 0 96931178 432312320 4241 1992294400 134512640 135113558 4294956208 18446744073709551615 134523307 0 0 4096 0 0 0 0 17 1 0 0
/proc/21030/statm: 105545 4241 55 146 0 104420 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 422180

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

[startup+0.901398 s]
/proc/loadavg: 0.93 0.98 1.08 3/64 21030
/proc/meminfo: memFree=1762816/2055920 swapFree=4181888/4192956
[pid=21030] ppid=21028 vsize=423632 CPUtime=0.89
/proc/21030/stat : 21030 (NCVWr) R 21028 21030 20489 0 -1 4195840 13142 0 0 0 77 12 0 0 25 0 1 0 96931178 433799168 5809 1992294400 134512640 135113558 4294956208 18446744073709551615 134768129 0 0 4096 0 0 0 0 17 1 0 0
/proc/21030/statm: 105908 5809 1030 146 0 104783 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 423632

Child ended because it received signal 11 (SIGSEGV)
Child dumped core
Real time (s): 0.926289
CPU time (s): 0.926858
CPU user time (s): 0.776881
CPU system time (s): 0.149977
CPU usage (%): 100.061
Max. virtual memory (cumulated for all children) (KiB): 423632

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.776881
system time used= 0.149977
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 13159
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= 2
involuntary context switches= 2

runsolver used 0.002999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node18 at 2009-04-25 21:49:39
IDJOB=1723793
IDBENCH=71736
IDSOLVER=531
FILE ID=node18/1723793-1240688977
PBS_JOBID= 9186653
Free space on /tmp= 66112 MiB

SOLVER NAME= NCVWr 2009-03-22
BENCH NAME= SAT_RACE06/velev-vliw-uns-4.0-9C1.cnf
COMMAND LINE= HOME/NCVWr BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1723793-1240688977/watcher-1723793-1240688977 -o /tmp/evaluation-result-1723793-1240688977/solver-1723793-1240688977 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/NCVWr HOME/instance-1723793-1240688977.cnf 1792484692

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 0c9a15d0f561e9d1bb438b04ae3c31af
RANDOM SEED=1792484692

node18.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		: 3000.280
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		: 3000.280
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:       1763296 kB
Buffers:         29596 kB
Cached:         204588 kB
SwapCached:       5176 kB
Active:         139604 kB
Inactive:       102732 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1763296 kB
SwapTotal:     4192956 kB
SwapFree:      4181888 kB
Dirty:           40556 kB
Writeback:           0 kB
Mapped:          13876 kB
Slab:            36376 kB
Committed_AS:   365232 kB
PageTables:       1372 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= 66084 MiB
End job on node18 at 2009-04-25 21:49:40