Trace number 1736533

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
MiniSat 2.1 (Sat-race'08 Edition)SAT 0.038993 0.038903

General information on the benchmark

NameCRAFTED/parity-games/
instance_n4_i4_pp.cnf
MD5SUMd35b54498d8d9672e60bf7e3ce33352b
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.022995
Satisfiable
(Un)Satisfiability was proved
Number of variables1572
Number of clauses9007
Sum of the clauses size28496
Maximum clause length12
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22356
Number of clauses of size 33596
Number of clauses of size 42300
Number of clauses of size 5752
Number of clauses of size over 53

Solver Data 

0.00/0.00	c WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Number of variables:          1572                                         |
0.00/0.00	c |  Number of clauses:            9007                                         |
0.00/0.00	c |  Parse time:                   0.01 s                                       |
0.02/0.03	c |  Simplification time:          0.02 s                                       |
0.02/0.03	c |                                                                             |
0.02/0.03	c ============================[ Search Statistics ]==============================
0.02/0.03	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.02/0.03	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.02/0.03	c ===============================================================================
0.02/0.03	c ===============================================================================
0.02/0.03	c restarts              : 1
0.02/0.03	c conflicts             : 99             (2829 /sec)
0.02/0.03	c decisions             : 291            (8316 /sec)
0.02/0.03	c propagations          : 11006          (314511 /sec)
0.02/0.03	c conflict literals     : 1165           (11.47 % deleted)
0.02/0.03	c Memory used           : 7.83 MB
0.02/0.03	c CPU time              : 0.034994 s
0.02/0.03	c 
0.02/0.03	s SATISFIABLE
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Verifier Data 

OK

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1736533-1240811953/watcher-1736533-1240811953 -o /tmp/evaluation-result-1736533-1240811953/solver-1736533-1240811953 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/minisat HOME/instance-1736533-1240811953.cnf 

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: 1.99 1.85 1.45 3/64 32682
/proc/meminfo: memFree=1599936/2055920 swapFree=4179608/4192956
[pid=32682] ppid=32680 vsize=7604 CPUtime=0
/proc/32682/stat : 32682 (minisat) R 32680 32682 32433 0 -1 4194304 235 0 0 0 0 0 0 0 21 0 1 0 109221429 7786496 219 1992294400 4194304 5092341 548682068832 18446744073709551615 4494759 0 0 4096 3 0 0 0 17 1 0 0
/proc/32682/statm: 1901 220 63 219 0 1679 0

[startup+0.0276311 s]
/proc/loadavg: 1.99 1.85 1.45 3/64 32682
/proc/meminfo: memFree=1599936/2055920 swapFree=4179608/4192956
[pid=32682] ppid=32680 vsize=8016 CPUtime=0.02
/proc/32682/stat : 32682 (minisat) R 32680 32682 32433 0 -1 4194304 388 0 0 0 2 0 0 0 21 0 1 0 109221429 8208384 372 1992294400 4194304 5092341 548682068832 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/32682/statm: 2004 372 88 219 0 1782 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 8016

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

[startup+0.0276311 s]
/proc/loadavg: 1.99 1.85 1.45 3/64 32682
/proc/meminfo: memFree=1599936/2055920 swapFree=4179608/4192956
[pid=32682] ppid=32680 vsize=8016 CPUtime=0.02
/proc/32682/stat : 32682 (minisat) R 32680 32682 32433 0 -1 4194304 388 0 0 0 2 0 0 0 21 0 1 0 109221429 8208384 372 1992294400 4194304 5092341 548682068832 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/32682/statm: 2004 372 88 219 0 1782 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 8016

Child status: 10
Real time (s): 0.038903
CPU time (s): 0.038993
CPU user time (s): 0.034994
CPU system time (s): 0.003999
CPU usage (%): 100.231
Max. virtual memory (cumulated for all children) (KiB): 8016

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.034994
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 434
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= 0

runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node63 at 2009-04-27 07:59:13
IDJOB=1736533
IDBENCH=71627
IDSOLVER=546
FILE ID=node63/1736533-1240811953
PBS_JOBID= 9187448
Free space on /tmp= 66408 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT09/CRAFTED/parity-games/instance_n4_i4_pp.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1736533-1240811953/watcher-1736533-1240811953 -o /tmp/evaluation-result-1736533-1240811953/solver-1736533-1240811953 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/minisat HOME/instance-1736533-1240811953.cnf

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

MD5SUM BENCH= d35b54498d8d9672e60bf7e3ce33352b
RANDOM SEED=1879315792

node63.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		: 3000.236
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		: 3000.236
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:       1600352 kB
Buffers:         60708 kB
Cached:         317896 kB
SwapCached:       6480 kB
Active:         177592 kB
Inactive:       210216 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1600352 kB
SwapTotal:     4192956 kB
SwapFree:      4179608 kB
Dirty:            1176 kB
Writeback:           0 kB
Mapped:          14864 kB
Slab:            53552 kB
Committed_AS:   608692 kB
PageTables:       1452 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= 66408 MiB
End job on node63 at 2009-04-27 07:59:13