Trace number 1541540

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 2009-03-22SAT 0.353945 0.248549

General information on the benchmark

NameRANDOM/MEDIUM/5SAT/SATISFIABLE/120/
unif-k5-r21.3-v120-c2556-S1879656894-046.cnf
MD5SUMf7bf3a504486cf138c26426940975d5c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.029995
Satisfiable
(Un)Satisfiability was proved
Number of variables120
Number of clauses2556
Sum of the clauses size12780
Maximum clause length5
Minimum clause length5
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 52556
Number of clauses of size over 50

Solver Data 

0.09/0.13	c +------------------------------+
0.09/0.13	c | gNovelty+, version 1.0       |
0.09/0.13	c +------------------------------+
0.09/0.13	c gnovelty+ -h for help
0.09/0.13	c 
0.26/0.23	s SATISFIABLE
0.26/0.23	v -1 -2 3 4 5 -6 7 -8 -9 -10 -11 -12 -13 -14 -15 16 17 18 19 -20 21 22 -23 -24 25 -26 27 -28 -29 30 31 -32 -33 34 -35 36 37 38 39 40 41 -42 -43 -44 -45 46 -47 -48 49 50 -51 52 53 54 55 -56 57 58 59 60 61 62 63 -64 -65 66 -67 68 69 70 -71 -72 73 74 -75 -76 -77 78 -79 -80 -81 82 -83 84 85 86 87 -88 89 -90 91 -92 93 -94 95 -96 97 -98 99 100 -101 102 103 104 -105 106 107 108 -109 110 -111 -112 -113 -114 115 -116 117 118 119 -120 0
0.26/0.23	c Done in 0.200000 seconds

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1541540-1238459121/watcher-1541540-1238459121 -o /tmp/evaluation-result-1541540-1238459121/solver-1541540-1238459121 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+ HOME/instance-1541540-1238459121.cnf 1222273272 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: 1.83 1.82 1.49 3/73 22286
/proc/meminfo: memFree=1470320/2055920 swapFree=4164824/4192956
[pid=22286] ppid=22284 vsize=509152 CPUtime=0
/proc/22286/stat : 22286 (gnovelty+) R 22284 22286 21861 0 -1 4194304 1204 0 0 0 0 0 0 0 20 0 1 0 1118576984 521371648 1189 1992294400 134512640 135680988 4294956192 18446744073709551615 134537167 0 0 4096 0 0 0 0 17 1 0 0
/proc/22286/statm: 127288 1196 102 285 0 127000 0

[startup+0.0478701 s]
/proc/loadavg: 1.83 1.82 1.49 3/73 22286
/proc/meminfo: memFree=1470320/2055920 swapFree=4164824/4192956
[pid=22286] ppid=22284 vsize=516968 CPUtime=0.04
/proc/22286/stat : 22286 (gnovelty+) R 22284 22286 21861 0 -1 4194304 9904 0 0 0 1 3 0 0 20 0 1 0 1118576984 529375232 9889 1992294400 134512640 135680988 4294956192 18446744073709551615 134537384 0 0 4096 0 0 0 0 17 1 0 0
/proc/22286/statm: 129242 9889 102 285 0 128954 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 516968

[startup+0.101873 s]
/proc/loadavg: 1.83 1.82 1.49 3/73 22286
/proc/meminfo: memFree=1470320/2055920 swapFree=4164824/4192956
[pid=22286] ppid=22284 vsize=516964 CPUtime=0.09
/proc/22286/stat : 22286 (gnovelty+) R 22284 22286 21861 0 -1 4194304 16233 0 0 0 3 6 0 0 20 0 1 0 1118576984 529371136 16217 1992294400 134512640 135680988 4294956192 18446744073709551615 134537708 0 0 4096 0 0 0 0 17 1 0 0
/proc/22286/statm: 129241 16222 102 285 0 128953 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 516964

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

[startup+0.201887 s]
/proc/loadavg: 1.83 1.82 1.49 3/73 22286
/proc/meminfo: memFree=1470320/2055920 swapFree=4164824/4192956
[pid=22286] ppid=22284 vsize=529296 CPUtime=0.26
/proc/22286/stat : 22286 (gnovelty+) R 22284 22286 21861 0 -1 4194304 19755 0 0 0 18 8 0 0 16 0 2 0 1118576984 541999104 19739 1992294400 134512640 135680988 4294956192 18446744073709551615 134957681 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/22286/statm: 132324 19739 106 285 0 132036 0
Current children cumulated CPU time (s) 0.26
Current children cumulated vsize (KiB) 529296

Child status: 10
Real time (s): 0.248549
CPU time (s): 0.353945
CPU user time (s): 0.25696
CPU system time (s): 0.096985
CPU usage (%): 142.405
Max. virtual memory (cumulated for all children) (KiB): 529296

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.25696
system time used= 0.096985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19768
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= 2

runsolver used 0.003999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node81 at 2009-03-31 02:25:22
IDJOB=1541540
IDBENCH=70453
IDSOLVER=550
FILE ID=node81/1541540-1238459121
PBS_JOBID= 9061688
Free space on /tmp= 126316 MiB

SOLVER NAME= gNovelty+-T 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/5SAT/SATISFIABLE/120/unif-k5-r21.3-v120-c2556-S1879656894-046.cnf
COMMAND LINE= HOME/gnovelty+ BENCHNAME RANDOMSEED MAXNBTHREAD
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1541540-1238459121/watcher-1541540-1238459121 -o /tmp/evaluation-result-1541540-1238459121/solver-1541540-1238459121 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+ HOME/instance-1541540-1238459121.cnf 1222273272 2

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

MD5SUM BENCH= f7bf3a504486cf138c26426940975d5c
RANDOM SEED=1222273272

node81.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		: 3000.220
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		: 3000.220
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:       1470736 kB
Buffers:         81608 kB
Cached:         404044 kB
SwapCached:      19112 kB
Active:         290780 kB
Inactive:       215784 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1470736 kB
SwapTotal:     4192956 kB
SwapFree:      4164824 kB
Dirty:            1460 kB
Writeback:           0 kB
Mapped:          26576 kB
Slab:            63468 kB
Committed_AS:  2903488 kB
PageTables:       2084 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= 126316 MiB
End job on node81 at 2009-03-31 02:25:22