Trace number 1785226

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
VARSAT-industrial 2009-03-22UNSAT 2.58861 2.58952

General information on the benchmark

Namecrafted/Difficult/contest05/sabharwal/
grid-pebbling-unsat-grid-pbl-0300.sat05-1350.sat05-1350.reshuffled-07.cnf
MD5SUM4c3b2816cb16b0fd4134bf2c85ce45d0
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.87571
Satisfiable
(Un)Satisfiability was proved
Number of variables90300
Number of clauses179702
Sum of the clauses size718202
Maximum clause length4
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 2300
Number of clauses of size 30
Number of clauses of size 4179400
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Number of variables:  90300                                                |
0.00/0.00	c |  Number of clauses:    179702                                               |
1.10/1.20	c |  Parsing time:         1.13         s                                       |
1.10/1.20	c |  Timeout:              43200 s
1.10/1.20	c |  Random Seed:          1215505277.000000
1.10/1.20	c |  Heuristic:            EMBP-G, threshold 0.950                              |
1.10/1.20	c |  Branching Rule:       default (solution-guided)                            |
1.10/1.20	c |  Learned clauses in surveys?  Using NO learned clauses.                     |
1.10/1.20	c |                                                                             |
2.49/2.57	c surveys--CPU time (sec)   : 0.0000         (0.00 % of total)
2.49/2.57	c surveys--attempted        : 0              (nan /sec)
2.49/2.57	c surveys--converged        : 0              ( nan % successful)
2.49/2.57	c restarts              : 0
2.49/2.57	c conflicts             : 0              (0 /sec)
2.49/2.57	c decisions             : 0              ( nan % random) (0 /sec)
2.49/2.57	c propagations          : 4              (2 /sec)
2.49/2.57	c conflict literals     : 0              ( nan % deleted)
2.49/2.57	c Memory used           : 74.00 MB
2.49/2.57	c Total CPU time (sec)      : 2.4786      
2.49/2.57	c 
2.49/2.57	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1785226-1241898292/watcher-1785226-1241898292 -o /tmp/evaluation-result-1785226-1241898292/solver-1785226-1241898292 -C 5000 -W 6000 -M 1800 HOME/varsat-industrial_static -seed=1215505277 HOME/instance-1785226-1241898292.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 6000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 20752
/proc/meminfo: memFree=1225216/2055920 swapFree=4180856/4192956
[pid=20752] ppid=20750 vsize=4272 CPUtime=0
/proc/20752/stat : 20752 (varsat-industri) R 20750 20752 20640 0 -1 4194304 782 0 0 0 0 0 0 0 18 0 1 0 217857436 4374528 767 1992294400 4194304 5102648 548682068784 18446744073709551615 4200628 0 0 4096 3 0 0 0 17 1 0 0
/proc/20752/statm: 1068 774 80 221 0 844 0

[startup+0.064185 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 20752
/proc/meminfo: memFree=1225216/2055920 swapFree=4180856/4192956
[pid=20752] ppid=20750 vsize=19792 CPUtime=0.05
/proc/20752/stat : 20752 (varsat-industri) R 20750 20752 20640 0 -1 4194304 4646 0 0 0 4 1 0 0 18 0 1 0 217857436 20267008 4607 1992294400 4194304 5102648 548682068784 18446744073709551615 4491703 0 0 4096 3 0 0 0 17 1 0 0
/proc/20752/statm: 4948 4608 87 221 0 4724 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 19792

[startup+0.101188 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 20752
/proc/meminfo: memFree=1225216/2055920 swapFree=4180856/4192956
[pid=20752] ppid=20750 vsize=22148 CPUtime=0.09
/proc/20752/stat : 20752 (varsat-industri) R 20750 20752 20640 0 -1 4194304 5246 0 0 0 7 2 0 0 18 0 1 0 217857436 22679552 5207 1992294400 4194304 5102648 548682068784 18446744073709551615 4491703 0 0 4096 3 0 0 0 17 1 0 0
/proc/20752/statm: 5537 5207 87 221 0 5313 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 22148

[startup+0.30121 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 20752
/proc/meminfo: memFree=1225216/2055920 swapFree=4180856/4192956
[pid=20752] ppid=20750 vsize=30772 CPUtime=0.29
/proc/20752/stat : 20752 (varsat-industri) R 20750 20752 20640 0 -1 4194304 7328 0 0 0 27 2 0 0 19 0 1 0 217857436 31510528 7289 1992294400 4194304 5102648 548682068784 18446744073709551615 4491703 0 0 4096 3 0 0 0 17 1 0 0
/proc/20752/statm: 7693 7290 87 221 0 7469 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 30772

[startup+0.701255 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 20752
/proc/meminfo: memFree=1225216/2055920 swapFree=4180856/4192956
[pid=20752] ppid=20750 vsize=41080 CPUtime=0.69
/proc/20752/stat : 20752 (varsat-industri) R 20750 20752 20640 0 -1 4194304 9887 0 0 0 65 4 0 0 23 0 1 0 217857436 42065920 9848 1992294400 4194304 5102648 548682068784 18446744073709551615 4491703 0 0 4096 3 0 0 0 17 1 0 0
/proc/20752/statm: 10270 9848 87 221 0 10046 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 41080

[startup+1.50134 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 20753
/proc/meminfo: memFree=1178616/2055920 swapFree=4180856/4192956
[pid=20752] ppid=20750 vsize=54828 CPUtime=1.49
/proc/20752/stat : 20752 (varsat-industri) R 20750 20752 20640 0 -1 4194304 13395 0 0 0 143 6 0 0 25 0 1 0 217857436 56143872 13356 1992294400 4194304 5102648 548682068784 18446744073709551615 4491703 0 0 4096 3 0 0 0 17 1 0 0
/proc/20752/statm: 13707 13357 100 221 0 13483 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 54828

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

[startup+2.30143 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 20753
/proc/meminfo: memFree=1161528/2055920 swapFree=4180856/4192956
[pid=20752] ppid=20750 vsize=69804 CPUtime=2.29
/proc/20752/stat : 20752 (varsat-industri) R 20750 20752 20640 0 -1 4194304 16945 0 0 0 221 8 0 0 25 0 1 0 217857436 71479296 16906 1992294400 4194304 5102648 548682068784 18446744073709551615 4491703 0 0 4096 3 0 0 0 17 1 0 0
/proc/20752/statm: 17451 16906 100 221 0 17227 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 69804

[startup+2.50145 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 20753
/proc/meminfo: memFree=1161528/2055920 swapFree=4180856/4192956
[pid=20752] ppid=20750 vsize=73236 CPUtime=2.49
/proc/20752/stat : 20752 (varsat-industri) R 20750 20752 20640 0 -1 4194304 17945 0 0 0 240 9 0 0 25 0 1 0 217857436 74993664 17906 1992294400 4194304 5102648 548682068784 18446744073709551615 4491703 0 0 4096 3 0 0 0 17 1 0 0
/proc/20752/statm: 18309 17906 100 221 0 18085 0
Current children cumulated CPU time (s) 2.49
Current children cumulated vsize (KiB) 73236

Child status: 20
Real time (s): 2.58952
CPU time (s): 2.58861
CPU user time (s): 2.47862
CPU system time (s): 0.109983
CPU usage (%): 99.9647
Max. virtual memory (cumulated for all children) (KiB): 73236

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.47862
system time used= 0.109983
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 18338
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= 5

runsolver used 0.005999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node42 at 2009-05-09 21:44:53
IDJOB=1785226
IDBENCH=24728
IDSOLVER=641
FILE ID=node42/1785226-1241898292
PBS_JOBID= 9264744
Free space on /tmp= 66136 MiB

SOLVER NAME= VARSAT-industrial 2009-03-22
BENCH NAME= SAT07/crafted/Difficult/contest05/sabharwal/grid-pebbling-unsat-grid-pbl-0300.sat05-1350.sat05-1350.reshuffled-07.cnf
COMMAND LINE= HOME/varsat-industrial_static -seed=RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1785226-1241898292/watcher-1785226-1241898292 -o /tmp/evaluation-result-1785226-1241898292/solver-1785226-1241898292 -C 5000 -W 6000 -M 1800  HOME/varsat-industrial_static -seed=1215505277 HOME/instance-1785226-1241898292.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 4c3b2816cb16b0fd4134bf2c85ce45d0
RANDOM SEED=1215505277

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		: 3000.232
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		: 3000.232
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:       1225632 kB
Buffers:         49888 kB
Cached:         710080 kB
SwapCached:       5916 kB
Active:          35704 kB
Inactive:       733176 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1225632 kB
SwapTotal:     4192956 kB
SwapFree:      4180856 kB
Dirty:            5832 kB
Writeback:           0 kB
Mapped:          14644 kB
Slab:            47472 kB
Committed_AS:   791152 kB
PageTables:       1392 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= 66136 MiB
End job on node42 at 2009-05-09 21:44:55